CN205252249U - Source of ventilating of air breather for hospital nursing - Google Patents

The utility model provides a source of ventilating of air breather for hospital nursing, including the crank, lever and folding bellows, set up first slotted hole in order along its length direction on the lever, second slotted hole and third slotted hole, first slotted hole length direction, second slotted hole length direction and third slotted hole length direction are unanimous with lever length direction, the articulate tip sets up first round pin axle, first round pin axle slides and sets up in first slotted hole, second round pin axle slides and sets up in the second slotted hole, second round pin axle is the fulcrum of lever, be provided with third round pin axle on the left end support of folding bellows, third round pin axle slides and sets up in the third slotted hole, first round pin axle, second round pin axle and third round pin axle parallel arrangement, the flexible direction of folding bellows is perpendicular with third round pin axle, folding bellows right -hand member lid sets up inlet channel and exhaust passage, the last first check valve that has in the folding bellows of permission air admission of inlet channel, the second check valve of allowwing the interior gas outgoing of folding bellows has on the exhaust passage.

The ventilation source of ventilator is used in a kind of hospital care

Technical field

The utility model belongs to nursing field, is specifically related to the ventilation source of a kind of hospital care ventilator.

Background technology

In current clinical medicine, ventilator is as the effective means of an energy artificial substituting expiratory positive airway pressure function, generally for the respiratory failure due to a variety of causes, anesthesia respiration management during major operation, breathe supportive treatment and emergency resuscitation, in Modern Medical Field, occupy very important position. Ventilator is that one can play prevention and treatment respiratory failure, reduces complication, saves and extend the vital Medical Devices of patients ' lives.

Summary of the invention

The technical problems to be solved in the utility model is to provide the ventilation source of a kind of hospital care ventilator, for patient provides inspiratory airflow.

In order to solve the problems of the technologies described above, the technical solution of the utility model is:

The ventilation source of ventilator is used in a kind of hospital care, comprise crank, lever and folding bellows, folding bellows left and right directions is flexible, motor is by the axle rotation of reduction box driving crank, the first slotted hole is set on lever along its length in turn, the second slotted hole and the 3rd slotted hole, the first slotted hole length direction, the second slotted hole length direction is consistent with lever length direction with the 3rd slotted hole length direction, the end of crank arranges the first bearing pin, the first pin slide is arranged in the first slotted hole, the second pin slide is arranged in the second slotted hole, the second bearing pin is the fulcrum of lever, on the left end support of folding bellows, be provided with the 3rd bearing pin, the 3rd pin slide is arranged in the 3rd slotted hole, the first bearing pin, the second bearing pin and the 3rd bearing pin be arranged in parallel, the flexible direction of folding bellows is vertical with the 3rd bearing pin, folding bellows right end cap arranges inlet channel and exhaust passage, on inlet channel, have and allow air to enter the first check valve in folding bellows, on exhaust passage, have and allow the second check valve that in folding bellows, gas is discharged.

The ventilation source of ventilator is used in above-mentioned hospital care, also comprise the second bearing pin position regulator, the second bearing pin two end supports is on forks arm, nut is set on forks arm, nut and screw rod match, and screw rod end arranges handwheel, and bolt rotary is supported in frame, screw axis is vertical with the flexible direction of folding bellows, and screw rod and lever are in the same plane.

The ventilation source of ventilator is used in above-mentioned hospital care, inlet channel left and right directions extends, the first check valve is arranged in inlet channel, the first check valve comprises conical valve seat, opens and closes spherical valve core, stage clip and the spring-leaf retainer of valve opening in conical valve seat, spherical valve core, stage clip and spring-leaf retainer are arranged from right to left in turn, spring-leaf retainer is fixed on inlet channel wall, has the taper seat coordinating with spherical valve core on conical valve seat, and this taper seat is also a part for inlet channel wall.

The ventilation source of ventilator is used in above-mentioned hospital care, exhaust passage left and right directions extends, the second check valve is arranged in exhaust passage, the second check valve comprises conical valve seat, opens and closes spherical valve core, stage clip and the spring-leaf retainer of valve opening in conical valve seat, spherical valve core, stage clip and spring-leaf retainer are from left to right arranged in turn, spring-leaf retainer is fixed on the wall of exhaust passage, has the taper seat coordinating with spherical valve core on conical valve seat, and this taper seat is also a part for exhaust passage.

Reduction box reduces motor speed, for the revolution of crank provides driving force, by lever, the gyration of crank is converted into the stretching motion of folding bellows. It is air-breathing when folding bellows extend, the first check valve is opened, the second check valve is in closed condition, air is from the full folding bellows of inlet channel, and in the time that breathing process stops, folding bellows start to shrink, the second check valve is opened, the first closed check valve, will fold gas in bellows and discharge from exhaust passage, for patient provides inspiratory airflow.

Brief description of the drawings

Below in conjunction with accompanying drawing to further detailed explanation of the utility model:

Fig. 1 is overall structure schematic diagram of the present utility model.

Fig. 2 is the structural representation of right end cap in Fig. 1.

In figure: 1 crank, 2 second bearing pins, 3 the 3rd bearing pins, 4 left end supports, 5 right end caps, 6 folding bellows, 7 levers, 51 taper seats, 52 inlet channels, 53 spherical valve cores, 54 stage clips, 55 spring-leaf retainers.

Detailed description of the invention

As depicted in figs. 1 and 2, hospital care comprises crank 1, lever 7 and folding bellows 6 with the ventilation source of ventilator, and folding bellows left and right directions is flexible, and motor is by the axle rotation of reduction box driving crank. The first slotted hole, the second slotted hole and the 3rd slotted hole are set on lever along its length in turn, and the first slotted hole length direction, the second slotted hole length direction are consistent with lever length direction with the 3rd slotted hole length direction. The end of crank arranges the first bearing pin, the first pin slide is arranged in the first slotted hole, the second bearing pin 2 slides and is arranged in the second slotted hole, the second bearing pin is the fulcrum of lever, on the left end support 4 of folding bellows, be provided with the 3rd bearing pin 3, the 3rd pin slide is arranged in the 3rd slotted hole, and the first bearing pin, the second bearing pin and the 3rd bearing pin be arranged in parallel. The flexible direction of folding bellows is vertical with the 3rd bearing pin, folding bellows right end cap 5 arranges inlet channel 52 and exhaust passage, on inlet channel, have and allow air to enter the first check valve in folding bellows, on exhaust passage, have and allow the second check valve that in folding bellows, gas is discharged. Folding bellows compression speed is SIN function variable, makes output gas flow also show as sinusoidal feature.

Hospital care also comprises the second bearing pin position regulator with the ventilation source of ventilator, the second bearing pin two end supports is on forks arm, nut is set on forks arm, nut and screw rod match, screw rod end arranges handwheel, bolt rotary is supported in frame, and screw axis is vertical with the flexible direction of folding bellows, and screw rod and lever are in the same plane. By hand wheel rotating screw rod, nut moves thereupon, drives the second bearing pin to move, and adjusts the position of the second bearing pin, has also adjusted the position of balance pivot, has realized the adjustment of ventilator tidal volume.

Inlet channel left and right directions extends, the first check valve is arranged in inlet channel, the first check valve comprises conical valve seat, opens and closes spherical valve core 53, stage clip 54 and the spring-leaf retainer of valve opening in conical valve seat, spherical valve core, stage clip and spring-leaf retainer are arranged from right to left in turn, spring-leaf retainer is fixed on inlet channel wall, on conical valve seat, have the taper seat coordinating with spherical valve core, this taper seat 51 is also a part for inlet channel wall.

Exhaust passage left and right directions extends, the second check valve is arranged in exhaust passage, the second check valve comprises conical valve seat, opens and closes spherical valve core, stage clip and the spring-leaf retainer 55 of valve opening in conical valve seat, spherical valve core, stage clip and spring-leaf retainer are from left to right arranged in turn, spring-leaf retainer is fixed on the wall of exhaust passage, on conical valve seat, have the taper seat coordinating with spherical valve core, this taper seat is also a part for exhaust passage. Spring-leaf retainer has through hole, to realize the communication of spring-leaf retainer both sides. Spring-leaf retainer is fixed and supports for stage clip provides.