CN113101601B - Adjustable latissimus dorsi exercise instrument - Google Patents

本发明涉及一种锻炼器械，尤其涉及一种可调节的背阔肌锻炼器械。本发明提供一种能够自动压腿、自动压腰且安全的可调节的背阔肌锻炼器械。一种可调节的背阔肌锻炼器械，包括有底座、第一支撑架和座椅，底座上设有第一支撑架，第一支撑架顶部设有座椅，底座上设有下拉机构，下拉机构上设有调节机构。本发明通过设有辅助机构，辅助机构运转带动压紧机构运转，进而将人们的大腿压住，从而达到了自动压腿的目的，通过设有联动机构，辅助机构运转带动联动机构运转，进而使旋转机构运转，进而抵住人们的腰部，如此达到了自动压腰的效果，通过设有限位机构，限位机构与下拉机构连接，进而能够防止部分下拉机构随意转动，较为安全。

The invention relates to an exercise device, in particular to an adjustable latissimus dorsi exercise device. The invention provides a safe and adjustable latissimus dorsi exercise device capable of automatically pressing legs and waist. An adjustable latissimus dorsi exercise equipment, comprising a base, a first support frame and a seat, the base is provided with a first support frame, the top of the first support frame is provided with a seat, the base is provided with a pull-down mechanism, the pull-down mechanism is There is an adjustment mechanism on the mechanism. In the present invention, an auxiliary mechanism is provided, and the operation of the auxiliary mechanism drives the operation of the pressing mechanism, thereby pressing people's thighs, thereby achieving the purpose of automatic leg pressing. The rotating mechanism operates and then presses against people's waists, thus achieving the effect of automatic waist compression. By providing a limit mechanism, the limit mechanism is connected with the pull-down mechanism, thereby preventing part of the pull-down mechanism from rotating at will, which is relatively safe.

一种可调节的背阔肌锻炼器械An adjustable latissimus dorsi exercise equipment

技术领域technical field

本发明涉及一种锻炼器械，尤其涉及一种可调节的背阔肌锻炼器械。The invention relates to an exercise device, in particular to an adjustable latissimus dorsi exercise device.

背景技术Background technique

随着生活水平的提高，人们越来越热爱健身运动，对于男性，更喜爱锻炼背阔肌的健身运动，传统的锻炼背阔肌的方法为人们做引体向上运动，或反复向上举起杠铃，虽然该方法能够起到一定的效果，但会耗费人们大量的精力，短时间内人们便会感到疲惫，进而无法坚持下去，另外，人们使用传统方法锻炼背阔肌时，具有被杠铃砸伤的风险，如此较不安全，而市面上的背阔肌锻炼器械锻炼时不能将人们的腿部和腰部压住，使得锻炼效果不高。With the improvement of living standards, people are more and more interested in fitness exercises. For men, they prefer fitness exercises that exercise the latissimus dorsi. The traditional method of exercising the latissimus dorsi is for people to do pull-ups, or repeatedly lift the barbell upwards. , although this method can play a certain effect, it will consume a lot of energy, people will feel tired in a short time, and then can't stick to it. In addition, when people use the traditional method to exercise the latissimus dorsi, they may be injured by the barbell. However, the latissimus dorsi exercise equipment on the market cannot press people's legs and waist when exercising, so the exercise effect is not high.

专利申请CN206675883U，公开日为2017.11.28，公开了一种双轮腰背肌锻炼器械，包括有机架、前轮组件、后轮组件、踏板组件、固定杆和软垫等，通过手部握住前轮组件上的踏板组件，脚部置于后轮组件上的踏板组件上，腰腹部放在软垫上，单独使用脚部驱动后轮组件转动，此时可以实现两侧腰背肌交替运动，可达到锻炼腰背肌的效果，当使用手部驱动前轮组件转动时，可以达到锻炼胸背肌肉和背阔肌的效果，然而该装置不能根据人的身高进行调节，进而无法满足部分人的需求。Patent application CN206675883U, published on 2017.11.28, discloses a dual-wheel lumbar back muscle exercise equipment, including a frame, a front wheel assembly, a rear wheel assembly, a pedal assembly, a fixed rod and a soft pad, etc. Hold the pedal assembly on the front wheel assembly, place the feet on the pedal assembly on the rear wheel assembly, place the waist and abdomen on the soft pad, and use the feet alone to drive the rear wheel assembly to rotate. At this time, the alternating movement of the lower back muscles on both sides can be realized. , which can achieve the effect of exercising the lower back muscles. When the front wheel assembly is driven by the hand to rotate, it can achieve the effect of exercising the chest and back muscles and the latissimus dorsi muscles. However, this device cannot be adjusted according to the height of the person, so it cannot meet the needs of some people. demand.

因此，亟待研发一种能够自动压腿、自动压腰且安全的可调节的背阔肌锻炼器械。Therefore, there is an urgent need to develop a safe and adjustable latissimus dorsi exercise device that can automatically press the legs and the waist.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种能够自动压腿、自动压腰且安全的可调节的背阔肌锻炼器械，以解决上述背景技术中传统锻炼方法耗费精力、锻炼效果不高且不安全的缺点。The purpose of the present invention is to provide a safe and adjustable latissimus dorsi exercise apparatus capable of automatically pressing the legs and waist, so as to solve the above-mentioned shortcomings of the traditional training methods in the background art, which are labor-intensive, ineffective and unsafe.

为实现上述目的，本发明提供如下技术方案：一种可调节的背阔肌锻炼器械，包括有底座、第一支撑架和座椅，底座上设有第一支撑架，第一支撑架顶部设有座椅，底座上设有下拉机构，下拉机构上设有调节机构。In order to achieve the above purpose, the present invention provides the following technical solutions: an adjustable latissimus dorsi exercise machine, comprising a base, a first support frame and a seat, the base is provided with a first support frame, and the top of the first support frame is provided with a base. There is a seat, a pull-down mechanism is arranged on the base, and an adjustment mechanism is arranged on the pull-down mechanism.

进一步，底座上设有第二支撑架，第二支撑架上转动式设有两根第一转轴，第二支撑架上设有限位架，两根第一转轴上均设有第三支撑架，第三支撑架与限位架配合，第三支撑架上滑动式设有杠铃片。Further, the base is provided with a second support frame, the second support frame is rotatably provided with two first rotating shafts, the second support frame is provided with a limit frame, and the two first rotating shafts are provided with a third support frame, The third support frame is matched with the limit frame, and a barbell plate is slidably arranged on the third support frame.

进一步，两根第三支撑架上均设有第一滑轨，第一滑轨上滑动式设有第一滑块，第一滑块与第三支撑架滑动式连接，第一滑块上设有手柄，第一滑块顶部设有第四支撑架，第四支撑架内侧滑动式设有限位杆，限位杆与第三支撑架配合，限位杆上绕有第一弹簧，第一弹簧连接在限位杆与第四支撑架之间。Further, the two third support frames are provided with first sliding rails, the first sliding rails are slidably provided with first sliding blocks, the first sliding blocks are slidably connected with the third supporting frames, and the first sliding blocks are provided on the first sliding blocks. There is a handle, the top of the first slider is provided with a fourth support frame, the inner side of the fourth support frame is slidably provided with a limit rod, the limit rod is matched with the third support frame, the limit rod is wound with a first spring, the first spring It is connected between the limit rod and the fourth support frame.

进一步，第二支撑架上设有两根第五支撑架，两根第五支撑架之间转动式连接有第二转轴，第二转轴中部设有第六支撑架，第六支撑架上部内侧设有中心轴，中心轴上设有两个海绵滚筒。Further, two fifth support frames are arranged on the second support frame, a second rotating shaft is rotatably connected between the two fifth support frames, a sixth support frame is arranged in the middle of the second rotating shaft, and an inner side of the upper part of the sixth support frame is arranged. There is a central shaft, and there are two sponge rollers on the central shaft.

进一步，第二支撑架上设有两根第二滑轨，第二滑轨上滑动式设有第一齿条，第二滑轨上绕有第二弹簧，第二弹簧连接在第一齿条与第二滑轨之间，两根第一转轴上均设有第一齿轮，第一齿轮与第一齿条啮合。Further, two second sliding rails are arranged on the second supporting frame, a first rack is slidably arranged on the second sliding rail, a second spring is wound around the second sliding rail, and the second spring is connected to the first rack Between the second slide rail, the two first rotating shafts are provided with first gears, and the first gears are engaged with the first racks.

进一步，底座上设有第三滑轨，第三滑轨上滑动式设有第二滑块，第三滑轨上绕有第三弹簧，第三弹簧连接在底座与第二滑块之间，第二滑块上设有两个气缸，气缸顶部设有第二齿条，第二转轴上设有两个第二齿轮，第二齿轮与第二齿条啮合，第二滑块上设有两根第一连接杆，第一连接杆与第一齿条连接。Further, a third sliding rail is arranged on the base, a second sliding block is slidably arranged on the third sliding rail, a third spring is wound around the third sliding rail, and the third spring is connected between the base and the second sliding block, Two cylinders are arranged on the second slider, a second rack is arranged on the top of the cylinder, two second gears are arranged on the second rotating shaft, the second gears are engaged with the second rack, and two A first connecting rod is connected with the first rack.

进一步，第一支撑架上设有两根第七支撑架，两根第七支撑架之间转动式连接有第三转轴，第三转轴中部设有压块，第三转轴上绕有两根第四扭力弹簧，第四扭力弹簧连接在压块与第七支撑架之间。Further, two seventh support frames are arranged on the first support frame, a third shaft is rotatably connected between the two seventh support frames, a pressing block is arranged in the middle of the third shaft, and two third shafts are wound around the third shaft. Four torsion springs, the fourth torsion spring is connected between the pressing block and the seventh support frame.

进一步，第三转轴上设有两个第三齿轮，底座上设有四根第八支撑架，两侧的第八支撑架之间滑动式连接有第二连接杆，两根第二连接杆上均设有第四齿条，第四齿条与第三齿轮啮合，第二连接杆上绕有第五弹簧，第五弹簧连接在第四齿条与靠近第三齿轮的一侧的第八支撑架之间，两根第二连接杆上均设有第一楔形块，第二齿条外侧设有第二楔形块，第一楔形块与第二楔形块配合。Further, two third gears are arranged on the third rotating shaft, four eighth support frames are arranged on the base, second connecting rods are slidably connected between the eighth support frames on both sides, and the two second connecting rods are Each is provided with a fourth rack, the fourth rack meshes with the third gear, the second connecting rod is wound with a fifth spring, and the fifth spring is connected to the fourth rack and the eighth support on the side close to the third gear Between the racks, the two second connecting rods are both provided with a first wedge-shaped block, and a second wedge-shaped block is provided on the outside of the second rack, and the first wedge-shaped block is matched with the second wedge-shaped block.

与现有技术相比，本发明的有益效果为：Compared with the prior art, the beneficial effects of the present invention are:

1、本发明通过设有下拉机构和调节机构，人们对调节机构进行调节，再利用后背发力使下拉机构运转，进而达到锻炼背阔肌的效果，另外调节机构的调节作用能够满足不同身高的人的需求；1. The present invention is provided with a pull-down mechanism and an adjustment mechanism. People adjust the adjustment mechanism, and then use the back force to make the pull-down mechanism operate, thereby achieving the effect of exercising the latissimus dorsi. In addition, the adjustment mechanism of the adjustment mechanism can meet different heights. needs of people;

2、本发明通过设有压紧机构，人们使压紧机构运转，进而将人们的大腿压紧，从而达到了压紧腿部的效果，如此能够提高锻炼的效果；2. The present invention is provided with a pressing mechanism, so that people make the pressing mechanism operate, and then compress people's thighs, thereby achieving the effect of compressing the legs, so that the effect of exercise can be improved;

3、本发明通过设有限位机构，限位机构与下拉机构连接，进而能够防止部分下拉机构随意转动，较为安全；3. The present invention is provided with a limit mechanism, which is connected with the pull-down mechanism, thereby preventing part of the pull-down mechanism from rotating at will, which is relatively safe;

4、本发明通过设有辅助机构，人们使辅助机构运转，进而使压紧机构压住人们的大腿，从而达到了自动压腿的目的；4. In the present invention, by providing an auxiliary mechanism, people make the auxiliary mechanism operate, and then the pressing mechanism presses people's thighs, so as to achieve the purpose of automatic leg pressing;

5、本发明通过设有旋转机构，人们使旋转机构运转，旋转机构抵住人们的腰部，从而方便人们进行锻炼；5. The present invention is provided with a rotating mechanism, so that people make the rotating mechanism run, and the rotating mechanism is pressed against the waist of the person, so that it is convenient for people to exercise;

6、本发明通过设有联动机构，辅助机构运转带动联动机构运转，进而使旋转机构运转，进而抵住人们的腰部，如此达到了自动压腰的效果。6. The present invention is provided with a linkage mechanism, and the operation of the auxiliary mechanism drives the operation of the linkage mechanism, thereby making the rotating mechanism operate, and then presses against people's waist, thus achieving the effect of automatic waist compression.

附图说明Description of drawings

图1为本发明的立体结构示意图。FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

图2为本发明的下拉机构的立体结构示意图。FIG. 2 is a schematic three-dimensional structure diagram of the pull-down mechanism of the present invention.

图3为本发明的调节机构的立体结构示意图。FIG. 3 is a schematic three-dimensional structure diagram of the adjusting mechanism of the present invention.

图4为本发明的压紧机构的立体结构示意图。FIG. 4 is a schematic three-dimensional structure diagram of the pressing mechanism of the present invention.

图5为本发明的限位机构的立体结构示意图。FIG. 5 is a schematic three-dimensional structure diagram of the limiting mechanism of the present invention.

图6为本发明的辅助机构的立体结构示意图。FIG. 6 is a schematic three-dimensional structure diagram of the auxiliary mechanism of the present invention.

图7为本发明的旋转机构的立体结构示意图。FIG. 7 is a schematic three-dimensional structure diagram of the rotating mechanism of the present invention.

图8为本发明的联动机构的立体结构示意图。FIG. 8 is a schematic three-dimensional structural diagram of the linkage mechanism of the present invention.

图中零部件名称及序号：1_底座，2_第一支撑架，3_座椅，4_下拉机构，41_第二支撑架，42_第一转轴，43_第三支撑架，44_杠铃片，45_限位架，5_调节机构，51_第一滑轨，52_第一滑块，53_手柄，54_第四支撑架，55_限位杆，56_第一弹簧，6_压紧机构，61_第五支撑架，62_第二转轴，63_第六支撑架，64_中心轴，65_海绵滚筒，7_限位机构，71_第二滑轨，72_第一齿条，73_第二弹簧，74_第一齿轮，8_辅助机构，81_第三滑轨，82_第二滑块，821_第三弹簧，83_气缸，84_第二齿条，85_第二齿轮，86_第一连接杆，9_旋转机构，91_第七支撑架，92_第三转轴，93_压块，94_第四扭力弹簧，10_联动机构，101_第三齿轮，102_第八支撑架，103_第二连接杆，104_第四齿条，105_第五弹簧，106_第一楔形块，107_第二楔形块。Part names and serial numbers in the picture: 1_base, 2_first support frame, 3_seat, 4_pull-down mechanism, 41_second support frame, 42_first shaft, 43_third support frame, 44 _barbell plate, 45_limit frame, 5_adjustment mechanism, 51_first slide rail, 52_first slider, 53_handle, 54_fourth support frame, 55_limit bar, 56_first Spring, 6_pressing mechanism, 61_fifth support frame, 62_second rotating shaft, 63_sixth support frame, 64_central shaft, 65_sponge roller, 7_limiting mechanism, 71_second sliding rail , 72_1st rack, 73_2nd spring, 74_1st gear, 8_auxiliary mechanism, 81_3rd slide rail, 82_2nd slider, 821_3rd spring, 83_cylinder, 84 _Second rack, 85_Second gear, 86_First connecting rod, 9_Rotating mechanism, 91_Seventh support frame, 92_Third shaft, 93_Pressure block, 94_Fourth torsion spring, 10 _ linkage mechanism, 101_ third gear, 102_ eighth support frame, 103_ second connecting rod, 104_ fourth rack, 105_ fifth spring, 106_ first wedge block, 107_ second wedge block .

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图1-8，本发明提供一种技术方案：一种可调节的背阔肌锻炼器械，包括有底座1、第一支撑架2、座椅3、下拉机构4、第二支撑架41、第一转轴42、第三支撑架43、杠铃片44、限位架45、调节机构5、第一滑轨51、第一滑块52、手柄53、第四支撑架54、限位杆55、第一弹簧56、压紧机构6、第五支撑架61、第二转轴62、第六支撑架63、中心轴64、海绵滚筒65、限位机构7、第二滑轨71、第一齿条72、第二弹簧73、第一齿轮74、辅助机构8、第三滑轨81、第二滑块82、第三弹簧821、气缸83、第二齿条84、第二齿轮85、第一连接杆86、旋转机构9、第七支撑架91、第三转轴92、压块93、第四扭力弹簧94、联动机构10、第三齿轮101、第八支撑架102、第二连接杆103、第四齿条104、第五弹簧105、第一楔形块106和第二楔形块107，底座1上前侧中部设有第一支撑架2，第一支撑架2顶部设有座椅3，底座1上后部设有下拉机构4，下拉机构4上设有调节机构5。1-8, the present invention provides a technical solution: an adjustable latissimus dorsi exercise device, comprising a base 1, a first support frame 2, a seat 3, a pull-down mechanism 4, and a second support frame 41 , the first shaft 42, the third support frame 43, the barbell piece 44, the limit frame 45, the adjustment mechanism 5, the first slide rail 51, the first slider 52, the handle 53, the fourth support frame 54, the limit rod 55 , the first spring 56, the pressing mechanism 6, the fifth support frame 61, the second shaft 62, the sixth support frame 63, the central shaft 64, the sponge roller 65, the limit mechanism 7, the second slide rail 71, the first tooth bar 72, second spring 73, first gear 74, auxiliary mechanism 8, third slide rail 81, second slider 82, third spring 821, cylinder 83, second rack 84, second gear 85, first connecting rod 86, rotating mechanism 9, seventh supporting frame 91, third rotating shaft 92, pressing block 93, fourth torsion spring 94, linkage mechanism 10, third gear 101, eighth supporting frame 102, second connecting rod 103, The fourth rack 104, the fifth spring 105, the first wedge block 106 and the second wedge block 107, a first support frame 2 is provided in the middle of the upper front side of the base 1, a seat 3 is provided on the top of the first support frame 2, and the base 1. A pull-down mechanism 4 is provided on the upper rear part, and an adjustment mechanism 5 is provided on the pull-down mechanism 4.

底座1上后侧中部设有第二支撑架41，第二支撑架41左右两侧上部均转动式设有第一转轴42，第二支撑架41后侧设有限位架45，两根第一转轴42上均设有第三支撑架43，第三支撑架43与限位架45配合，第三支撑架43外侧下部滑动式设有杠铃片44。A second support frame 41 is arranged in the middle of the upper rear side of the base 1 , a first rotating shaft 42 is rotatably arranged on the upper part of the left and right sides of the second support frame 41 , a limit frame 45 is arranged at the rear side of the second support frame 41 , and two first The rotating shaft 42 is provided with a third support frame 43 , the third support frame 43 cooperates with the limit frame 45 , and the lower part of the outer side of the third support frame 43 is slidably provided with a barbell piece 44 .

两根第三支撑架43前部均设有第一滑轨51，第一滑轨51上滑动式设有第一滑块52，第一滑块52与第三支撑架43滑动式连接，第一滑块52外侧设有手柄53，第一滑块52顶部设有第四支撑架54，第四支撑架54内侧滑动式设有限位杆55，限位杆55与第三支撑架43配合，限位杆55上绕有第一弹簧56，第一弹簧56连接在限位杆55与第四支撑架54之间。The front parts of the two third support frames 43 are both provided with first slide rails 51 . The first slide rails 51 are slidably provided with first sliders 52 . The first sliders 52 are slidably connected to the third support frames 43 . A handle 53 is provided on the outer side of a slider 52 , a fourth support frame 54 is provided on the top of the first slider 52 , a limit rod 55 is slidably provided on the inner side of the fourth support frame 54 , and the limit rod 55 cooperates with the third support frame 43 . A first spring 56 is wound around the limit rod 55 , and the first spring 56 is connected between the limit rod 55 and the fourth support frame 54 .

第二支撑架41左右两侧中部均设有第五支撑架61，两根第五支撑架61之间转动式连接有第二转轴62，第二转轴62中部设有第六支撑架63，第六支撑架63上部内侧设有中心轴64，中心轴64上设有两个海绵滚筒65。The middle of the left and right sides of the second support frame 41 is provided with a fifth support frame 61 , a second rotating shaft 62 is rotatably connected between the two fifth support frames 61 , and a sixth support frame 63 is arranged in the middle of the second rotating shaft 62 . The inner side of the upper part of the six support frames 63 is provided with a central shaft 64 , and two sponge rollers 65 are provided on the central shaft 64 .

第二支撑架41左右两侧中部均设有第二滑轨71，第二滑轨71上滑动式设有第一齿条72，第二滑轨71上绕有第二弹簧73，第二弹簧73连接在第一齿条72与第二滑轨71之间，两根第一转轴42上均设有第一齿轮74，第一齿轮74与第一齿条72啮合。The middle parts of the left and right sides of the second support frame 41 are provided with second slide rails 71 . The second slide rail 71 is slidably provided with a first rack 72 , and a second spring 73 is wound around the second slide rail 71 . The second spring 73 is connected between the first rack 72 and the second slide rail 71 , the two first rotating shafts 42 are provided with first gears 74 , and the first gears 74 are engaged with the first racks 72 .

底座1上后侧设有第三滑轨81，第三滑轨81上滑动式设有第二滑块82，第三滑轨81上绕有第三弹簧821，第三弹簧821连接在底座1与第二滑块82之间，第二滑块82顶部左右两侧均设有气缸83，气缸83顶部设有第二齿条84，第二转轴62左右两侧均设有第二齿轮85，第二齿轮85与第二齿条84啮合，第二滑块82后部左右两侧均设有第一连接杆86，第一连接杆86与第一齿条72连接。A third sliding rail 81 is provided on the rear side of the base 1 , a second sliding block 82 is slidably arranged on the third sliding rail 81 , a third spring 821 is wound around the third sliding rail 81 , and the third spring 821 is connected to the base 1 Between the second sliding block 82 and the left and right sides of the top of the second sliding block 82 are cylinders 83 , the top of the cylinder 83 is provided with a second rack 84 , and the left and right sides of the second shaft 62 are provided with second gears 85 . The second gear 85 is engaged with the second rack 84 , and the left and right sides of the rear of the second sliding block 82 are provided with first connecting rods 86 , and the first connecting rods 86 are connected with the first rack 72 .

第一支撑架2左右两侧中部均设有第七支撑架91，两根第七支撑架91之间转动式连接有第三转轴92，第三转轴92中部设有压块93，第三转轴92上绕有两根第四扭力弹簧94，第四扭力弹簧94连接在压块93与第七支撑架91之间。The middle of the left and right sides of the first support frame 2 is provided with a seventh support frame 91 , a third shaft 92 is rotatably connected between the two seventh support frames 91 , and a pressing block 93 is arranged in the middle of the third shaft 92 . Two fourth torsion springs 94 are wound around 92 , and the fourth torsion springs 94 are connected between the pressing block 93 and the seventh support frame 91 .

第三转轴92左右两侧均设有第三齿轮101，底座1上左右两侧均设有两根第八支撑架102，前后两侧的第八支撑架102之间滑动式连接有第二连接杆103，两根第二连接杆103前侧均设有第四齿条104，第四齿条104与第三齿轮101啮合，第二连接杆103前部绕有第五弹簧105，第五弹簧105连接在第四齿条104与前侧的第八支撑架102之间，两根第二连接杆103后侧均设有第一楔形块106，第二齿条84外侧设有第二楔形块107，第一楔形块106与第二楔形块107配合。The left and right sides of the third shaft 92 are provided with third gears 101 , the base 1 is provided with two eighth support frames 102 on the left and right sides, and the eighth support frames 102 on the front and rear sides are slidably connected with a second connection Rod 103, the front side of the two second connecting rods 103 is provided with a fourth rack 104, the fourth rack 104 meshes with the third gear 101, the front part of the second connecting rod 103 is wound with a fifth spring 105, the fifth spring 105 is connected between the fourth rack 104 and the eighth support frame 102 on the front side, the rear side of the two second connecting rods 103 is provided with a first wedge-shaped block 106, and the outer side of the second rack 84 is provided with a second wedge-shaped block 107 , the first wedge block 106 is matched with the second wedge block 107 .

当人们需要锻炼背阔肌时，首先人们根据自己上半身的身高对调节机构5进行调节，然后人们坐在座椅3顶部，随后人们手臂伸直，并双手抓住部分调节机构5，然后利用后背发力使调节机构5运转，调节机构5运转带动下拉机构4运转，随后人们双手松开调节机构5，使得调节机构5恢复原位，如此人们使调节机构5和下拉机构4反复运转，从而达到锻炼背阔肌的目的，待人们锻炼结束后，人们使下拉机构4和调节机构5恢复原位，再离开座椅3，若再次使用本设备，重复上述步骤即可。When people need to exercise the latissimus dorsi, they first adjust the adjustment mechanism 5 according to their upper body height, then they sit on the top of the seat 3, and then they straighten their arms and grasp part of the adjustment mechanism 5 with both hands, and then use the back The back force makes the adjustment mechanism 5 operate, and the operation of the adjustment mechanism 5 drives the pull-down mechanism 4 to operate, and then people release the adjustment mechanism 5 with both hands to make the adjustment mechanism 5 return to its original position, so that people make the adjustment mechanism 5 and the pull-down mechanism 4 operate repeatedly, thereby To achieve the purpose of exercising the latissimus dorsi, after people exercise, they restore the pull-down mechanism 4 and the adjustment mechanism 5 to their original positions, and then leave the seat 3. If the equipment is used again, the above steps can be repeated.

当调节机构5运转时，调节机构5使第三支撑架43转动，进而使第一转轴42转动，从而使杠铃片44向上移动，随后人们双手松开调节机构5，杠铃片44由于重力移回原位，进而使第一转轴42和第三支撑架43转回原位，同时限位架45能够防止第三支撑架43转动过多，另外第三支撑架43使调节机构5运转至调节后的状态，杠铃片44上下移动能够使人们腰部和背部做反复拉伸运动，从而对人们的背阔肌进行锻炼，若人们需要更换不同重量的杠铃片44时，人们手动使杠铃片44在第三支撑架43上向外侧滑出，然后对其进行更换，并使其移回原位，然后继续进行锻炼，待人们锻炼结束后，人们使杠铃片44向下移回原位。When the adjustment mechanism 5 operates, the adjustment mechanism 5 makes the third support frame 43 rotate, and then the first rotating shaft 42 rotates, so that the barbell piece 44 moves upward, and then people release the adjustment mechanism 5 with both hands, and the barbell piece 44 moves back due to gravity At the same time, the limit frame 45 can prevent the third support frame 43 from rotating too much, and the third support frame 43 makes the adjustment mechanism 5 run to the adjusted position. When the barbell plate 44 moves up and down, people can do repeated stretching exercises on the waist and back, thereby exercising the latissimus dorsi. The three support frames 43 slide out to the outside, and then they are replaced and moved back to the original position, and then continue to exercise. After people exercise, people move the barbell plate 44 back down to the original position.

初始状态下，若人们坐在座椅3上时双手不能抓住手柄53，人们可手动使限位杆55在第四支撑架54内向上滑动，直至限位杆55与第三支撑架43分开，此时第一弹簧56由初始状态变为拉伸状态，然后人们手动使手柄53向下滑动，进而使第一滑块52在第一滑轨51上和第三支撑架43内向下滑动，待手柄53移至合适高度后，人们松开限位杆55，第一弹簧56由拉伸状态复位，弹力使限位杆55向下移动，限位杆55与第三支撑架43再次配合，进而能够防止手柄53前后移动，若人们坐在座椅3上时双手能够抓住手柄53，则不需调节手柄53的高度，然后人们坐在座椅3上，手臂伸直，双手分别抓住两个手柄53，再利用后背发力向下拉动手柄53，进而使第一滑块52向下移动，从而使第一滑轨51向下移动，第一滑轨51移动使第三支撑架43转动，从而使杠铃片44向上移动，随后人们松开手柄53，杠铃片44由于重力移回原位，使得手柄53向上移动，如此人们反复向下拉动手柄53，从而对背阔肌进行锻炼，待人们锻炼结束后，人们再次向上拉动限位杆55，然后手动使手柄53移回原位，随后松开限位杆55，第一弹簧56使限位杆55恢复原位。In the initial state, if people cannot grasp the handle 53 with both hands when sitting on the seat 3, people can manually slide the limit rod 55 upward in the fourth support frame 54 until the limit rod 55 is separated from the third support frame 43. , at this time, the first spring 56 changes from the initial state to the tension state, and then people manually slide the handle 53 downward, so that the first sliding block 52 slides downward on the first sliding rail 51 and in the third supporting frame 43, After the handle 53 is moved to a suitable height, people release the limit rod 55, the first spring 56 is reset from the stretched state, the elastic force moves the limit rod 55 downward, and the limit rod 55 cooperates with the third support frame 43 again, Further, it is possible to prevent the handle 53 from moving back and forth. If people can grasp the handle 53 with both hands when sitting on the seat 3, there is no need to adjust the height of the handle 53, and then people sit on the seat 3 with their arms straight and their hands are respectively grasped. Two handles 53, and then use the back force to pull down the handle 53, and then the first sliding block 52 moves downward, so that the first sliding rail 51 moves downward, and the first sliding rail 51 moves to make the third support frame 43 is rotated, so that the barbell plate 44 moves upward, and then people release the handle 53, the barbell plate 44 moves back to its original position due to gravity, so that the handle 53 moves upward, so people repeatedly pull the handle 53 downward, thereby exercising the latissimus dorsi. After people exercise, they pull the limit rod 55 upward again, and then manually move the handle 53 back to the original position, then release the limit rod 55, and the first spring 56 restores the limit rod 55 to its original position.

人们坐在座椅3上后，手动使第二转轴62向下转动九十度，进而使第六支撑架63向下转动九十度，从而使中心轴64向前并向下移动，继而使海绵滚筒65向前并向下移动，随后海绵滚筒65压在人们的大腿上，达到了压紧腿部的效果，如此能够提高锻炼的效果，待人们锻炼结束后，人们使第二转轴62转回原位，从而使海绵滚筒65移回原位，再使双腿离开海绵滚筒65。After people sit on the seat 3, they manually turn the second rotating shaft 62 downward by 90 degrees, and then turn the sixth support frame 63 downward by 90 degrees, so that the central shaft 64 moves forward and downward, thereby making the The sponge roller 65 moves forward and downward, and then the sponge roller 65 is pressed on people's thighs to achieve the effect of compressing the legs, which can improve the effect of exercise. After people exercise, people make the second rotating shaft 62 rotate. Return to the original position, so that the sponge roller 65 is moved back to the original position, and then the legs are separated from the sponge roller 65.

人们手动使第一齿条72在第二滑轨71上向下滑动，第二弹簧73由初始状态变为压缩状态，然后人们进行锻炼，当第一转轴42转动时，第一转轴42会带动第一齿轮74转动，待人们锻炼结束后，人们松开第一齿条72，第二弹簧73由压缩状态复位，弹力使第一齿条72移回原位，第一齿条72与第一齿轮74啮合，当人们对杠铃片44进行更换时，第一齿条72能够防止第一齿轮74随意转动，进而能够防止第三支撑架43随意转动，较为安全。People manually make the first rack 72 slide down on the second slide rail 71, the second spring 73 changes from the initial state to the compressed state, and then people exercise, when the first rotating shaft 42 rotates, the first rotating shaft 42 will drive the The first gear 74 rotates, and after people exercise, they release the first rack 72, the second spring 73 is reset from the compressed state, and the elastic force makes the first rack 72 move back to its original position, and the first rack 72 is connected to the first rack 72. The gears 74 are meshed, and when people replace the barbell piece 44, the first rack 72 can prevent the first gear 74 from rotating freely, thereby preventing the third support frame 43 from rotating freely, which is safer.

人们打开气缸83，气缸83运作会使第二齿条84向上移动，由于第二齿条84与第二齿轮85啮合，第二齿条84移动使第二齿轮85转动九十度，进而使第二转轴62向下转动九十度，从而使海绵滚筒65压住人们的双腿，然后人们关闭气缸83，再使大腿向上顶起海绵滚筒65，使得海绵滚筒65向上移动一小段距离，进而使第二齿轮85反转，从而使第二齿条84向下移动，继而使气缸83向下移动，气缸83移动使第二滑块82在第三滑轨81上向下滑动，第三弹簧821由初始状态变为压缩状态，第二滑块82移动使第一连接杆86向下移动，进而使第一齿条72向下移动，此时第一齿条72不再卡住第一齿轮74，随后人们再进行背阔肌锻炼，待人们锻炼结束后，人们使大腿不再顶住海绵滚筒65，此时第三弹簧821由压缩状态复位，使得第一齿条72移回原位，并使海绵滚筒65移动至水平方向，人们再打开气缸83，使得第二齿条84向下移回原位，从而使海绵滚筒65移回原位，此时人们关闭气缸83，使得海绵滚筒65不再移动。People open the air cylinder 83, and the operation of the air cylinder 83 will make the second rack 84 move upward. Since the second rack 84 is engaged with the second gear 85, the movement of the second rack 84 causes the second gear 85 to rotate ninety degrees, thereby making the second rack 84 rotate ninety degrees. The second rotating shaft 62 rotates down ninety degrees, so that the sponge roller 65 presses people's legs, and then people close the air cylinder 83, and then push up the sponge roller 65 with their thighs, so that the sponge roller 65 moves up a short distance, thereby making the The second gear 85 is reversed, so that the second rack 84 moves downward, and then the air cylinder 83 moves downward. From the initial state to the compressed state, the second slider 82 moves to move the first connecting rod 86 downward, thereby causing the first rack 72 to move downward. At this time, the first rack 72 is no longer stuck on the first gear 74 , and then people exercise the latissimus dorsi again. After the exercise is over, people make their thighs no longer stand against the sponge roller 65. At this time, the third spring 821 is reset from the compressed state, so that the first rack 72 is moved back to its original position, and the The sponge roller 65 is moved to the horizontal direction, and people open the air cylinder 83 again, so that the second rack 84 moves down and back to its original position, so that the sponge roller 65 moves back to its original position. At this time, people close the air cylinder 83, so that the sponge roller 65 does not Move again.

人们手动使第三转轴92向上转动九十度，进而使压块93向上转动九十度，第四扭力弹簧94由初始状态变为压缩状态，随后人们坐在座椅3上，并将腰部靠在压块93上，随后人们进行锻炼，此时压块93能够使人们更好地利用后部发力，待人们锻炼结束后，人们松开第三转轴92，第四扭力弹簧94由压缩状态复位，使得压块93和第三转轴92转回原位。People manually rotate the third shaft 92 upwards by 90 degrees, and then turn the pressure block 93 upwards by 90 degrees, and the fourth torsion spring 94 changes from the initial state to the compressed state, and then people sit on the seat 3 and rest their waists on the seat 3. On the pressing block 93, people then exercise. At this time, the pressing block 93 can enable people to make better use of the rear force. After the exercise is over, people release the third rotating shaft 92, and the fourth torsion spring 94 is in a compressed state. Reset, so that the pressing block 93 and the third rotating shaft 92 are turned back to their original positions.

当第二齿条84向上移动时，第二齿条84带动第二楔形块107向上移动，进而使第一楔形块106向前移动，从而使第二连接杆103在第八支撑架102内向前滑动，继而使第四齿条104向前移动，第五弹簧105由初始状态变为拉伸状态，由于第四齿条104与第三齿轮101啮合，第四齿条104前移使第三齿轮101转动，进而使第三转轴92向上转动九十度，从而使压块93向上转动九十度，达到了自动旋转的目的，当第二齿条84向下移回原位时，第一楔形块106与第二楔形块107分开，第五弹簧105由拉伸状态复位，使得第四齿条104移回原位，从而使第三齿轮101和压块93反向转回原位。When the second rack 84 moves upward, the second rack 84 drives the second wedge block 107 to move upward, thereby causing the first wedge block 106 to move forward, so that the second connecting rod 103 moves forward in the eighth support frame 102 Sliding, and then the fourth rack 104 moves forward, the fifth spring 105 changes from the initial state to the tension state, because the fourth rack 104 meshes with the third gear 101, the fourth rack 104 moves forward to make the third gear 101 rotates, and then the third rotating shaft 92 rotates upwards by 90 degrees, so that the pressing block 93 rotates upwards by 90 degrees to achieve the purpose of automatic rotation. When the second rack 84 moves back to its original position, the first wedge-shaped The block 106 is separated from the second wedge block 107, and the fifth spring 105 is reset from the tension state, so that the fourth rack 104 moves back to its original position, thereby causing the third gear 101 and the pressing block 93 to reversely rotate back to the original position.

本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。Those skilled in the art should understand that the above-mentioned embodiments do not limit the present invention in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

1. An adjustable latissimus dorsi exercise machine comprises a base (1), a first support frame (2) and a seat (3), and is characterized in that the base (1) is provided with the first support frame (2), the top of the first support frame (2) is provided with the seat (3), the base (1) is provided with a pull-down mechanism (4), and the pull-down mechanism (4) is provided with an adjusting mechanism (5); a second support frame (41) is arranged on the base (1), two first rotating shafts (42) are arranged on the second support frame (41) in a rotating mode, a limiting frame (45) is arranged on the second support frame (41), third support frames (43) are arranged on the two first rotating shafts (42), the third support frames (43) are matched with the limiting frame (45), and barbell discs (44) are arranged on the third support frames (43) in a sliding mode; the two third supporting frames (43) are respectively provided with a first sliding rail (51), the first sliding rails (51) are slidably provided with a first sliding block (52), the first sliding blocks (52) are connected with the third supporting frames (43) in a sliding manner, the first sliding blocks (52) are provided with handles (53), the tops of the first sliding blocks (52) are provided with fourth supporting frames (54), the inner sides of the fourth supporting frames (54) are provided with limiting rods (55) in a sliding manner, the limiting rods (55) are matched with the third supporting frames (43), the limiting rods (55) are wound with first springs (56), and the first springs (56) are connected between the limiting rods (55) and the fourth supporting frames (54); two fifth support frames (61) are arranged on the second support frame (41), a second rotating shaft (62) is rotatably connected between the two fifth support frames (61), a sixth support frame (63) is arranged in the middle of the second rotating shaft (62), a central shaft (64) is arranged on the inner side of the upper part of the sixth support frame (63), and two sponge rollers (65) are arranged on the central shaft (64); two second sliding rails (71) are arranged on the second supporting frame (41), a first rack (72) is arranged on the second sliding rails (71) in a sliding mode, a second spring (73) is wound on the second sliding rails (71), the second spring (73) is connected between the first rack (72) and the second sliding rails (71), first gears (74) are arranged on the two first rotating shafts (42), and the first gears (74) are meshed with the first racks (72); a third sliding rail (81) is arranged on the base (1), a second sliding block (82) is arranged on the third sliding rail (81) in a sliding mode, a third spring (821) is wound on the third sliding rail (81), the third spring (821) is connected between the base (1) and the second sliding block (82), two air cylinders (83) are arranged on the second sliding block (82), a second rack (84) is arranged at the top of each air cylinder (83), two second gears (85) are arranged on the second rotating shaft (62), the second gears (85) are meshed with the second racks (84), two first connecting rods (86) are arranged on the second sliding block (82), and the first connecting rods (86) are connected with the first racks (72); two seventh support frames (91) are arranged on the first support frame (2), a third rotating shaft (92) is rotatably connected between the two seventh support frames (91), a pressing block (93) is arranged in the middle of the third rotating shaft (92), two fourth torsion springs (94) are wound on the third rotating shaft (92), and the fourth torsion springs (94) are connected between the pressing block (93) and the seventh support frames (91); be equipped with two third gear (101) on third pivot (92), be equipped with four eighth support frames (102) on base (1), sliding type connection has second connecting rod (103) between the eighth support frame (102) of both sides, all be equipped with fourth rack (104) on two second connecting rod (103), fourth rack (104) and third gear (101) meshing, it has fifth spring (105) to wind on second connecting rod (103), fifth spring (105) are connected between fourth rack (104) and eighth support frame (102) that are close to one side of third gear (101), all be equipped with first wedge (106) on two second connecting rod (103), second rack (84) outside is equipped with second wedge (107), first wedge (106) and second wedge (107) cooperation.