CN108209272A - A kind of swivel chair for being easy to locking - Google Patents

The invention discloses a kind of swivel chairs for being easy to locking, including the universal wheel on the cushion, support shaft, pedestal and the pedestal that set from top to bottom, it is arranged with lower gasket, spring and Upper gasket in the installation axle of universal wheel, the junction of Upper gasket and pedestal is equipped with pressure sensor；Pressure sensor is connected with control device, and control device is connected with alarm set；The runner of universal wheel is equipped with cricoid flange and catch, and axle support is equipped with to be between flange and catch radially with the matched cladding flange of flange, cladding flange；The outer circle wall of the annular groove is equipped with tooth, and the axle support is equipped with locking bar and return mechanism, and locking bar is connected with return mechanism, and return mechanism is connected with control device.Safety, comfort and the flexibility of the present invention is good, while also has the characteristics that locking is convenient.

A kind of swivel chair for being easy to locking

Technical field

The present invention relates to a kind of swivel chair, particularly a kind of swivel chair for being easy to locking.

Background technology

In recent years, either office space or family's occasion, more and more people are using swivel chair as the primary choosing of configuration It selects.Swivel chair relative to traditional chair itself distinct feature is that three cushion, support shaft and pedestal parts, cushion portion can be divided into Above gravity is transferred to pedestal only by support shaft.This structure has led to swivel chair and is not so good as traditional chair in terms of mechanics Son is stablized, and stretches one's body or the problem of while leaning to one side to pick up thing easily turns on one's side when people are sitting on swivel chair.Existing swivel chair lacks The alarm set of weary rollover causes user easily because rollover problem is injured, and safety is relatively low.In addition, the universal wheel of existing swivel chair Connection between pedestal is all rigid, and the cushion performance of chair is only realized by the softness of cushion, lacks anti-vibration Ability, the comfort for leading to chair are poor.More commonly, the universal wheel of present swivel chair in use for some time, wheel shaft quilt Such as hair, rubbish sundries blocks, and causes wheel shaft rotation motionless, declines the flexibility of swivel chair.On the other hand, present swivel chair Universal wheel or without locking device independent between locking device or wheel, the fixation of this swivel chair resulted in is cumbersome, nothing Method meets the fixed demand of user's needs swivel chair.Therefore, existing swivel chair is there are safety, comfort and flexibility is poor asks Topic, while the locking of swivel chair is also cumbersome.

Invention content

The object of the present invention is to provide a kind of swivel chairs for being easy to locking.Safety, comfort and the flexibility of the present invention It is good, while also have the characteristics that locking is convenient.

Technical scheme of the present invention：It is a kind of be easy to locking swivel chair, including set from top to bottom cushion, support shaft, bottom Universal wheel on seat and pedestal, the universal wheel include installation axle, and installation axle is arranged with lower gasket, spring successively from top to bottom And Upper gasket, lower gasket are fixed on the mounting shaft, Upper gasket is fixed on pedestal, and the junction of Upper gasket and pedestal is equipped with pressure Force snesor；The support shaft is equipped with control device, and control device is connected with the pressure sensor, control device It is also associated with alarm set；

Universal wheel further includes axle support, and axle support is equipped with wheel shaft, and wheel shaft both ends are equipped with runner；The runner court Cricoid flange and annular groove are equipped with to the side of axle support, catch is evenly distributed in the flat sidewall of annular groove；The wheel Shaft stool is equipped with close to the end face of runner and is in flange and gear radially with the matched cladding flange of flange, cladding flange Between piece；

The outer circle wall of the annular groove is equipped with tooth, and the axle support is equipped with locking bar and return mechanism, described Support shaft is equipped with operating device；One end of the locking bar is equipped with the lock section that coordinate with tooth, the other end of locking bar through the first bar and Return mechanism is connected, and return mechanism is connected with operating device through the second rope.

In a kind of aforementioned swivel chair for being easy to lock, the return mechanism includes resetting spring and matches with resetting spring The reseting plate of conjunction, the lower end of reseting plate are connected with the first bar, and the upper end of reseting plate is connected with the second rope.

It is aforementioned it is a kind of be easy in the swivel chair of locking, the operating device includes the sliding slot being vertically arranged, under sliding slot End is equipped with the first sliding block, and the upper end of sliding slot is equipped with the second sliding block；The upper surface of first sliding block is equipped with the first magnetic sheet, the second sliding block Lower surface is equipped with is also associated with operating lever with matched second magnetic sheet of the first magnetic sheet, the second sliding block.

In a kind of aforementioned swivel chair for being easy to lock, the alarm set is vibrating device, and vibrating device is arranged on seat Pad.

Compared with prior art, then the present invention is passed through by setting pressure sensor in the junction of each universal wheel Control device compares the maximum value of pressure and the difference of minimum value, when the difference just represents that swivel chair has rollover beyond preset range Danger, control device driving alarm set remind user dangerous, cause user injured to avoid turning on one's side with this.Meanwhile each The junction of universal wheel and pedestal is equipped with spring, and thus the present invention has good anti-vibration performance, obtains chair comfort property Greatly improve.On the other hand, the present invention makes wheel shaft by the cladding flange of axle support and the flange fit structure of runner Outside being not exposed to, also just it is not easy to be wound by sundries.Catch is additionally provided on runner, catch is evenly distributed on cladding flange outer sides. Therefore, it can be blocked by catch even if object is sandwiched in universal wheel, the sundries being wrapped on catch is cut off by pocket knife to be cleared up. In addition, each wheel of the present invention can be locked by the cooperation of the tooth of locking bar and runner inner wall, and the locking bar of each wheel converges through rope Collection is triggered the locking of each wheel by operating lever simultaneously to operating device.Therefore the locking device of the present invention is not only easy to operate, Locking effect is also fine.

Further, locking device of the invention is resetted by spring structure, is started by magnet arrangement, these structures Not only simple at low cost, Simultaneous Stabilization is not easy failure well.

To sum up, safety of the invention, comfort and flexibility are good, while also have the characteristics that locking is convenient.In addition, this Invention also has the characteristics that simple in structure, at low cost and stability is good.

Description of the drawings

Fig. 1 is the structure diagram of the present invention；

Fig. 2 is the structure diagram of universal wheel；

Fig. 3 is the installation diagram of universal wheel；

Fig. 4 is the axial cross-sectional views of universal wheel；

Fig. 5 is the radial section schematic diagram of universal wheel；

Fig. 6 is the structure diagram of operating device；

Fig. 7 is the structure diagram of runner.

Reference numeral：100- universal wheels, 101- installation axles, 102- lower gaskets, 103- springs, 104- Upper gaskets, 110- wheels Shaft stool, 111- cladding flanges, 112- locking bars, 113- lock sections, 120- wheel shafts, 130- runners, 131- flanges, 132- annular grooves, 133- catch, 134- teeth, the first bars of 141-, 142- second restrict, 150- return mechanisms, 151- resetting springs, 152- reseting plates, 200- pedestals, 201- pressure sensors.

300- support shafts, 301- control devices, 310- operating devices, 311- sliding slots, the first sliding blocks of 312-, 313- second are slided Block, the first magnetic sheets of 314-, the second magnetic sheets of 315-, 316- operating levers, 400- cushions, 401- alarm sets.

Specific embodiment

With reference to embodiment, the invention will be further described, but is not intended as the foundation limited the present invention.

Embodiment：A kind of swivel chair for being easy to locking, is formed as shown in Figures 1 to 7, including the cushion set from top to bottom 400th, the universal wheel 100 on support shaft 300, pedestal 200 and pedestal, the universal wheel 100 include installation axle 101, installation axle 101 are arranged with lower gasket 102, spring 103 and Upper gasket 104 successively from top to bottom, and lower gasket 102 is fixed in installation axle 101, Upper gasket 104 is fixed on pedestal 200, and the junction of Upper gasket 104 and pedestal 200 is equipped with pressure sensor 201；Described Support shaft 300 is equipped with control device 301, and control device 301 is connected with the pressure sensor 201, control device 301 It is also associated with alarm set 401；Universal wheel further includes axle support 110, and axle support 110 is equipped with wheel shaft 120, wheel shaft 120 Both ends are equipped with runner 130；The runner 130 is equipped with cricoid flange 131 and annular groove 132 towards the side of axle support 110, Catch 133 is evenly distributed in the flat sidewall of annular groove 132；The axle support 110 is equipped with close to the end face of runner 130 With the matched cladding flange 111 of flange 131, cladding flange 111 is between flange 131 and catch 133 radially；It is described The outer circle wall of annular groove 132 is equipped with tooth 134, and the axle support 110 is equipped with locking bar 112 and return mechanism 150, described Support shaft 300 be equipped with operating device 310；One end of the locking bar 112 is equipped with the lock section 113 coordinated with tooth 134, locking bar 112 other end is connected through the first bar 141 with return mechanism 150, and return mechanism 150 is with operating device 310 through the second rope 142 It is connected.

The return mechanism 150 include resetting spring 151 and with 151 matched reseting plate 152 of resetting spring, reset The lower end of piece 152 is connected with the first bar 141, and the upper end of reseting plate 152 is connected with the second rope 142.

The operating device 310 includes the sliding slot 311 being vertically arranged, and the lower end of sliding slot 311 is equipped with the first sliding block 312, The upper end of sliding slot 311 is equipped with the second sliding block 313；The upper surface of first sliding block 312 is equipped with the first magnetic sheet 314, the second sliding block 313 Lower surface is equipped with is also associated with operating lever 316 with 314 matched second magnetic sheet 315 of the first magnetic sheet, the second sliding block 313.

The alarm set 401 is vibrating device, and vibrating device is arranged on cushion 400.

Operation principle：By being arranged lower gasket 102,103 and of spring in installation axle 101 between universal wheel 100 and pedestal 200 The structure connection of Upper gasket 104.This structure has good anti-vibration performance.The junction of Upper gasket 104 and pedestal 200 is equipped with Pressure sensor 201, the pressure of each universal wheel are transmitted to control device 301 by pressure sensor.Control device 301 is preferred Ground uses embedded scm, and control device 301 is used for the stress of more each universal wheel.It should be evident that work as swivel chair During rollover, the wheel pressure at rollover point is naturally larger than the pressure of wheel on the other side.Therefore, when the pressure of universal wheel maximum When difference between value and minimum value is more than predetermined value, show that swivel chair has the danger of rollover.At this point, control device 301 is by carrying Device 401 of waking up reminds user, avoids turning on one's side.

Alarm set 401 is preferably by vibrating device, and vibration frequency is 1-8Hz, and human body is to the vibration ratio of the range It is more sensitive.It is reminded by way of vibration and does not only interfere with other people, but also user can be made to perceive dangerous letter with will not omitting ground in time Number, there is preferable prompting effect.

The projection of cladding flange 111 and flange 131 and cladding flange 111 and catch 133 in the axial direction is respectively provided with overlapping It partly (coats flange 111 and covers flange 131, the covering cladding of catch 133 flange 111), thus wheel shaft 120 is not exposed to Outside, also just it is not easy to be wound by sundries.Catch 133 is evenly distributed on one " annulus ", even if universal wheel is involved in sundries, sundries Also it can only be wrapped on catch 133, pocket knife, which is stretched between two catch 133 to cut off sundries, can clear up sundries, make universal wheel It restores to the original state.

As shown in the figure, locking bar and operating lever are all fixed in the form of a lever.When universal wheel locks, operating lever is dialed up 316 handle end, the other end of operating lever 316 just makes 313 slide downward of the second sliding block under the drive of connecting rod, in the second magnetic sheet 315 and first magnetic sheet 314 attracting each other under, the first sliding block 312 slides up.First sliding block 312 is connected to the second rope 142, warp The drive of the second rope 142 is crossed, reseting plate 152 moves up, and resetting spring 151 is compressed, while reseting plate 152 makes through the first bar 141 Locking bar 112 rotates, and universal wheel is lockked in lock section 113 and the cooperation of tooth 134.

During unlock, operating lever 316 is stirred downwards, sliding the first magnetic sheet 314 and the second magnetic sheet 315 of making on the second sliding block 313 Attraction is not enough to the first sliding block 312 of absorption, and the reset of resetting spring 151 as a result, moves down reseting plate 152, and reseting plate 152 passes through again First bar 141 drives locking bar 112 to rotate, and lock section 113 is detached from tooth 134, universal wheel unlock.