CN113476287B

CN113476287B - Mechanical pressing device for sudden respiratory arrest in emergency department

Info

Publication number: CN113476287B
Application number: CN202110667244.5A
Authority: CN
Inventors: 李云杉
Original assignee: Jiangsu Kangkang Classmate Technology Co ltd
Current assignee: Jiangsu Kangkang Classmate Technology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2023-10-13
Anticipated expiration: 2041-06-16
Also published as: CN113476287A

Abstract

The invention relates to the field of emergency equipment, in particular to a mechanical pressing device for sudden respiratory stop of emergency department, which comprises a clamping frame arranged on a patient bed, wherein a second bracket capable of adjusting the height and the horizontal position is arranged on the clamping frame, a pressing mechanism and a driving mechanism are arranged on the second bracket, the driving mechanism is in transmission connection with the pressing mechanism, the driving mechanism can adjust the power, a self-tightening mechanism is arranged on the clamping frame, and the pressing mechanism is in transmission connection with the self-tightening mechanism in a pneumatic mode. This kind of a mechanical pressing device for emergency department respiratory sudden stop, easy operation, labour saving and time saving ensures the dynamics homogeneous when pressing at every turn to the frequency is stable unchangeable, and can adjust different pressing frequency according to different stages of giving first aid to work, can avoid pressing the during operation and rocking that produces when the sick bed removes leads to whole device and sick bed not hard up, and then ensures the stability of rescue operation, improves the rescue success rate.

Description

Mechanical pressing device for sudden respiratory arrest in emergency department

Technical Field

The invention relates to the field of emergency equipment, in particular to a mechanical pressing device for sudden respiratory arrest in emergency department.

Background

When the existing emergency department is used for treating patients suffering from sudden respiratory arrest, special mechanical compression equipment is generally adopted for carrying out the compression operation of cardiopulmonary resuscitation in order to reduce the labor intensity of medical staff and ensure the stability of the strength and frequency during each compression. However, the existing mechanical pressing device needs to be installed on a sickbed when in use, the mechanical pressing device is loosened and even separated from the sickbed due to shaking generated when the pressing work is carried out and the sickbed moves, and then rescue failure is caused, and different rescue processes need different moving frequencies

Disclosure of Invention

The present invention is directed to a mechanical pressing device for sudden respiratory arrest in emergency department, which solves the above-mentioned problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: a mechanical pressing device for sudden respiratory stop of emergency department, including the card frame that is used for installing on the sick bed, be provided with on the card frame and carry out height-adjusting and horizontal position's support two, be provided with pressing mechanism and actuating mechanism on the support two, actuating mechanism is connected with pressing mechanism transmission, and actuating mechanism can adjust power adjustment, is provided with self-tightening mechanism on the card frame, pressing mechanism passes through pneumatic means and is connected with self-tightening mechanism transmission.

Preferably, the driving mechanism comprises a movable motor fixed on the bottom surface of a second bracket, the second bracket is horizontally arranged, a fixed shaft on the upper surface of the second bracket is rotationally connected with a rotary table, the rotary table is connected with a motor in a transmission manner, a plurality of gear rings with different diameters are fixed on the rotary table, and a plurality of gear rings are concentrically arranged.

Preferably, the driving mechanism further comprises an air cylinder fixed on the upper surface of the second bracket, the piston rod end of the air cylinder is vertically and fixedly connected with a supporting rod, the upper end of the supporting rod is fixedly connected with a lantern ring, the inside of the lantern ring is inserted and fixedly connected with a second rotating shaft in a rotating mode, two ends of the second rotating shaft are respectively and fixedly connected with a multi-edge rod and a gear in a coaxial mode, the gears can be respectively meshed with the gear rings, and the multi-edge rod is in transmission connection with the pressing mechanism.

Preferably, a first sliding rod which is horizontally arranged is fixed on the side wall of the clamping frame, the cross section of the first sliding rod is polygonal, the first sliding rod penetrates through and is connected to the first bracket in a sliding mode, the first bracket is arranged in the vertical direction, a first screw rod which is parallel to the first sliding rod and is connected to the side wall of the clamping frame in a fixed shaft rotating mode is arranged on the first bracket, a flat plate is fixed at the upper end of the first bracket, a second sliding rod which is vertically arranged upwards is fixed on the upper surface of the flat plate, the cross section of the second sliding rod is polygonal, the second sliding rod penetrates through and is connected to the second bracket in a sliding mode, a second screw rod which is connected to the second bracket in a threaded mode is connected to the upper surface of the flat plate in a fixed shaft rotating mode, and the second screw rod is parallel to the second sliding rod.

Preferably, the pressing mechanism comprises a pressing rod which penetrates through and is connected to the second support in a sliding mode, the pressing rod is vertically arranged downwards, a pressing plate is fixed at the lower end of the pressing rod, a balloon is fixed on the bottom surface of the pressing plate, an arc-shaped spring plate is arranged in the balloon, the middle of the outer arc surface of the spring plate can be in buckling contact with the inner wall of the balloon, two ends of the spring plate are hinged to the bottom surface of the pressing plate through a second connecting rod, and the balloon is communicated with the self-tightening mechanism through a pipeline.

Preferably, the middle part of the pressure lever is fixed with a convex ring, the convex ring is connected with the bottom surface of the second bracket through a spring, the upper end of the pressure lever is fixed with a pin rod, the pin rod is inserted in a strip-shaped hole and can slide in the strip-shaped hole, the strip-shaped hole is formed in the middle part of the pressure lever, one end of the pressure lever is hinged to the upper end of the third bracket, and the third bracket is fixed on the second bracket.

Preferably, a support IV and a support V are fixed on the support II, the upper fixed shaft of the support IV is rotationally connected with a turbine, the position, far away from the center of a circle, on the disc surface of the turbine is hinged with one end, far away from the support III, of the swing rod through a connecting rod I, the upper fixed shaft of the support V is rotationally connected with a worm, the worm is meshed with the turbine and connected with the turbine, one end of the worm is coaxially and fixedly connected with a sliding sleeve, and a multi-edge rod is slidably connected in the sliding sleeve.

Preferably, the self-tightening mechanism comprises a sliding groove formed in the upper side wall of the inside of the clamping frame, an inverted L-shaped clamping block is connected in the sliding groove in a sliding mode, a threaded hole is formed in the upper surface of the clamping block, and a screw rod III is connected in the threaded hole in a threaded mode.

Preferably, the upper side wall of the clamping frame is fixedly provided with a volute, the volute is penetrated through and fixedly connected with a first rotating shaft in a rotating way, the first rotating shaft is fixedly connected with an impeller in the volute, the lower end of the first rotating shaft is fixedly connected with a third screw shaft in a coaxial way, and the fixed shaft of the rotating shaft is rotatably connected to the clamping frame.

Preferably, the self-tightening mechanism further comprises a first air pipe and a second air pipe which are fixed on the pressing plate, the first air pipe and the second air pipe are both communicated with the saccule, the first air pipe is connected with a first check valve, the second air pipe is connected with a second check valve, the first air pipe is fixed and communicated with the side wall of the volute, the conducting direction of the first check valve points to the volute, and the conducting direction of the second check valve points to the saccule.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the whole device is quickly mounted on the sickbed through the clamping frame, so that the time is saved, the structure is simple, the whole device is quickly and conveniently dismounted from the sickbed, the time and the labor are saved, the pressing position of the pressing mechanism can be adjusted according to the body types and the heart positions of different patients, the convenience and the rapidness are realized, the accurate rescue operation is improved, and the rescue success rate of the patients is improved.

According to the invention, the pressing mechanism is driven by the driving mechanism to rescue the patient, so that the force is uniform during each pressing, the frequency is stable and unchanged, and different pressing frequencies can be regulated according to different rescue stages, thereby improving the rescue success rate.

According to the invention, the pressing mechanism drives the self-tightening mechanism to further compress the bed frame in the pressing rescue process in a pneumatic mode, so that the connection between the clamping frame and the bed frame is more stable, the whole device and the sickbed are prevented from loosening or even separating due to shaking generated during pressing work and moving of the sickbed, the stability of rescue operation is ensured, and the rescue success rate is improved.

Drawings

FIG. 1 is a schematic diagram of the general assembly structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

FIG. 3 is a schematic diagram of a final assembly structure of the present invention;

FIG. 4 is an enlarged schematic view of the card holder of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure A-A of FIG. 4;

fig. 6 is a schematic cross-sectional view of a balloon according to the present invention.

In the figure: 1. a clamping frame; 2. a clamping block; 3. a volute; 4. a first rotating shaft; 5. a first air pipe; 6. a first bracket; 7. a first screw; 8. a first slide bar; 9. a flat plate; 10. a second screw; 11. a second bracket; 12. a second slide bar; 13. a motor; 14. a first connecting rod; 15. swing rod; 16. a bar-shaped hole; 17. a turbine; 18. a compression bar; 19. a pin rod; 20. a third bracket; 21. a spring; 22. a convex ring; 23. a pressing plate; 24. a balloon; 25. a sliding sleeve; 26. a multi-edge bar; 27. a collar; 28. a second rotating shaft; 29. a gear; 30. a gear ring; 31. a turntable; 32. a cylinder; 33. a worm; 34. a bracket IV; 35. a fifth bracket; 36. a chute; 37. a screw III; 38. a threaded hole; 39. a spring plate; 40. a second connecting rod; 41. a first check valve; 42. a second check valve; 43. a second air pipe; 44. an impeller.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a mechanical pressing device for sudden respiratory stop of emergency department, including the card frame 1 that is used for installing on the sick bed, be provided with on the card frame 1 and carry out height-adjusting and horizontal position's support two 11, be provided with pressing mechanism and actuating mechanism on the support two 11, actuating mechanism is connected with pressing mechanism transmission, and actuating mechanism can adjust power adjustment, is provided with self-tightening mechanism on the card frame 1, pressing mechanism passes through pneumatic means and is connected with self-tightening mechanism transmission.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 3, the driving mechanism includes a movable motor 13 fixed on the bottom surface of a second bracket 11, the second bracket 11 is horizontally disposed, the upper surface of the second bracket 11 is fixedly connected with a turntable 31 in a rotating manner, the turntable 31 is in transmission connection with the motor 13, a plurality of gear rings 30 with different diameters are fixed on the turntable 31, and a plurality of gear rings 30 are concentrically disposed, the driving mechanism further includes an air cylinder 32 fixed on the upper surface of the second bracket 11, a piston rod end of the air cylinder 32 is vertically and fixedly connected with a supporting rod, the upper end of the supporting rod is fixedly connected with a collar 27, a second rotating shaft 28 is inserted in the collar 27 and fixedly connected with a first rotating shaft, two ends of the second rotating shaft 28 are respectively and coaxially and fixedly connected with a multi-edge rod 26 and a gear 29, the gear 29 can be respectively engaged with each gear ring 30, the multi-edge rod 26 is in transmission connection with the pressing mechanism, the motor 13 is started, the motor 13 drives the pressing mechanism to perform a pressing operation through the turntable 31 and each gear ring 30, and the pressing frequency of the pressing mechanism can be adjusted through the engagement of the adjusting gear rings 29 with the gear rings with different diameters 30, so that the pressing frequencies of the pressing mechanisms can be adjusted according to different phases of the pressing.

In this embodiment, as shown in fig. 1, fig. 3 and fig. 4, the side wall of the clamping frame 1 is fixed with a slide bar 8 horizontally arranged, the cross section of the slide bar 8 is polygonal, the slide bar 8 penetrates through and is slidingly connected to the support 6, the support 6 is vertically arranged, the support 6 penetrates through and is screwed with a screw 7, the screw 7 and the slide bar 8 are mutually parallel and are fixedly connected to the side wall of the clamping frame 1 in a rotating manner, the upper end of the support 6 is fixed with a flat plate 9, the upper surface of the flat plate 9 is fixed with a slide bar 12 vertically upwards arranged, the cross section of the slide bar 12 is polygonal, the slide bar 12 penetrates through and is slidingly connected to the support 11, the support 11 penetrates through and is screwed with a screw 10, the screw 10 and the slide bar 12 are mutually parallel and are fixedly connected to the upper surface of the flat plate 9, and the positions of the support 11 in the vertical direction and the horizontal direction are adjusted through the screw 6 and the screw 10, so that the support 11 synchronously drives a driving mechanism and a pressing mechanism on the support to move in the vertical direction and the horizontal direction, the upper surface of the support is further the flat plate is provided with a flat plate 9, the right pressing position of the heart-shaped heart-saving device can be adjusted, and the success rate of a patient can be improved, and the patient can be adjusted accurately and the heart-saving position of a patient can be adjusted.

In this embodiment, as shown in fig. 1, 2, 3 and 6, the pressing mechanism includes a pressing rod 18 penetrating through and slidingly connected to the second bracket 11, the pressing rod 18 is vertically disposed downwards, a pressing plate 23 is fixed at the lower end of the pressing rod 18, a balloon 24 is fixed at the bottom of the pressing plate 23, an arc-shaped spring plate 39 is disposed inside the balloon 24, the middle part of the outer arc surface of the spring plate 39 can make abutting contact with the inner wall of the balloon 24, two ends of the spring plate 39 are hinged to the bottom of the pressing plate 23 through a second connecting rod 40, the spring plate 39 generates reciprocating deformation during pressing, a buffering effect is generated for pressing operation, thereby reducing injury to a patient, the balloon 24 is communicated with the self-tightening mechanism through a pipeline, a convex ring 22 is fixed at the middle part of the pressing rod 18, the convex ring 22 is connected with the bottom of the second bracket 11 through a spring 21, the upper end of the pressing rod 18 is fixed with a pin 19, the pin 19 is inserted into the bar hole 16 and can slide in the bar hole 16, the bar hole 16 is formed at the middle part of the 15, one end of the swinging rod 15 is hinged to the upper end of the third bracket 20, the third bracket 20 is fixed on the second bracket 11, the fourth bracket 35 is connected with the fourth bracket 35, the fifth bracket 25 is connected with the fifth bracket 25 in a rotating way, and the fifth bracket 35 is connected with the fifth bracket 25 in a rotating way, and the fifth bracket is connected with the fourth bracket 25.

In this embodiment, as shown in fig. 1, 3, 4, 5 and 6, the self-tightening mechanism includes a chute 36 formed on an upper side wall inside the clamping frame 1, an inverted L-shaped clamping block 2 is slidably connected in the chute 36, a threaded hole 38 is formed on an upper surface of the clamping block 2, a screw rod III 37 is connected in the threaded hole 38 in a threaded manner, a volute 3 is fixed on an upper side wall of the clamping frame 1, a first rotating shaft 4 is penetrated through and fixedly connected to the volute 3 in a rotating manner, the first rotating shaft 4 is fixedly connected to an impeller 44 in the volute 3, a lower end of the first rotating shaft 4 is fixedly connected to the screw rod III 37 in a coaxial manner, the first rotating shaft 4 is fixedly connected to the clamping frame 1 in a rotating manner, the self-tightening mechanism further includes a first air pipe 5 and a second air pipe 43 fixed on the pressing plate 23, the first air pipe 5 and the second air pipe 43 are both communicated with the balloon 24, the first air pipe 5 is connected with the first check valve 41, the second air pipe 43 is connected with the second check valve 42, the first air pipe 5 is fixed and communicated with the side wall of the volute 3, the conducting direction of the first check valve 41 points to the volute 3, the conducting direction of the second check valve 42 points to the balloon 24, the deformation of the balloon 24 pressurizes air, further clamping of the bed frame is achieved by utilizing the air-driven self-tightening mechanism, the clamping frame 1 is connected with the bed frame more firmly, the whole device is prevented from loosening or even separating from the sickbed due to shaking generated when the sickbed is pressed, and therefore the stability of rescue operation is ensured, and the success rate of rescue is improved.

The invention has the following advantages: when the mechanical pressing device for sudden respiratory arrest in emergency department is used, the working process is as follows:

when sudden cardiac arrest of a patient occurs, as shown in fig. 1, 3 and 4, as shown in fig. 1, the clamping block 2 inside the clamping frame 1 is completely located in the sliding groove 36, so that the clamping frame 1 is conveniently and directly and quickly clamped on a bed frame of a sickbed, the whole device is quickly installed, the rotating shaft I4 is rotated, the rotating shaft I4 synchronously drives the screw rod III 37 to rotate, the clamping block 2 slides out of the sliding groove 36 through threaded transmission, as shown in fig. 4, the inner right angle of the clamping block 2 is clamped with the bed frame, the clamping frame 1 is quickly fixed on the bed frame, the threaded transmission is adopted, the axial self-locking characteristic of threads is utilized, no additional parts are needed, the structure is simple, the operation is convenient, the whole device is quickly installed on the sickbed, and the rescue success rate is improved.

After the clamping frame 1 is installed, the first support 6 is driven to move in the horizontal direction through the first rotating screw rod 7 by utilizing the threaded transmission, so that the first support 6 drives the second support 11 and the driving mechanism and the pressing mechanism on the second support 11 to move in the horizontal direction through the flat plate 9 and the second slide rod 12, and the second support 11 is driven to move up and down in the vertical direction through the second rotating screw rod 10 by utilizing the threaded transmission, so that the second support 11 synchronously drives the driving mechanism and the pressing mechanism on the second support to move in the horizontal direction, and the position of the pressing mechanism is adjusted quickly and stably, and the proper pressing position can be adjusted according to the body types and the heart positions of different patients, so that the accurate rescue operation is improved, and the rescue success rate of the patients is improved.

After the pressing position of the pressing mechanism is adjusted according to the body shape and the heart position of a patient, the motor 13 is started to work, the motor 13 drives the rotary disc 31 and each gear ring 30 on the upper surface of the rotary disc 31 to rotate, the gear ring 30 drives the gear 29 and the rotating shaft II 28 to rotate, the rotating shaft II 28 drives the sliding sleeve 25 to rotate through the multi-edge rod 26, the sliding sleeve 25 synchronously drives the worm 33 to rotate, the worm 33 drives the turbine 17 to rotate, the rotation of the turbine 17 applies pulling force or pushing force to the right end of the swinging rod 15 through the connecting rod I14, as shown in fig. 1 and 3, the swinging rod 15 swings up and down around the left end of the swinging rod, and in the process of swinging up and down around the left end of the swinging rod 15, the side wall of the bar hole 16 and the pin rod 19 drive the pressing rod 18 to move up and down, so that the pressing rod 18 can reciprocate and press the heart part of the patient through the saccule 24, and the upper and lower strokes of the pressing rod 18 are unchanged due to the fact that the position and the diameter of the rotary disc 31 are unchanged, so that the pressing rod 18 drives the saccule 24 to press force is unchanged, and the pressing force of the pressing rod 24 is ensured to be uniform and the frequency is stable and not changed.

In the process of the up-and-down movement of the compression bar, the convex ring 22 stretches or compresses the spring 21, so that vibration generated by the up-and-down movement of the compression bar 18 is buffered through deformation of the spring 21, and the damage to a patient is reduced.

As shown in fig. 2, the piston rod of the air cylinder 32 drives the strut to move left and right, so that the strut drives the second rotating shaft 28 to move left and right through the collar 27, and then the second rotating shaft 28 synchronously drives the gear 29 to move left and right, so that the gear 29 is meshed with the gear rings 30 with different diameters on the turntable 31, and as the angular speeds of the turntable 31 and the gear rings 30 thereon are fixed, the gear rings 30 with different diameters drive the gear 29 to rotate at different speeds, the larger the diameter of the gear ring 30 drives the gear 29 to rotate, so that the larger the speed of the gear 29 drives the turbine 17 to rotate through the second rotating shaft 28, the polygonal rod 26, the sliding sleeve 27 and the worm 33, the smaller the opposite is, thereby realizing that the frequency of the up-and-down movement of the pressing rod 18 is changed through the first connecting rod 14 and the swinging rod 15, and further realizing the adjustment of the pressing frequency of the balloon 24, and thus the adjustment of different pressing frequencies can be adjusted according to different rescue stages.

In the process of pressing the balloon 24, the balloon 24 is flattened, as shown in fig. 6, and the spring plate 39 tends to be flat, so that the spring plate 39 obtains a restoring force, and when the pressure rod 18 drives the balloon 24 to move upwards for resetting, the spring plate 39 is not stressed and resets under the action of the restoring force, so that the buffering effect is generated on the pressing operation through the reciprocating deformation of the spring plate 39, thereby reducing the injury to a patient, the internal pressure of the balloon 24 is increased after the balloon 24 is stressed, the conducting direction of the one-way valve 41 points to the volute 3, the conducting direction of the one-way valve 2 points to the balloon 24, thereby enabling air in the balloon 24 to be conveyed into the volute 3 through the first air pipe, as shown in fig. 5, enabling the impeller 44 to drive the rotating shaft 4 to rotate under the action of air flow, enabling the clamping block 2 to be further driven by the screw rod III 37, further enabling the clamping block 1 to be connected with the bed frame firmly, avoiding shaking generated when the sickbed is pressed, and when the sickbed is moved, from causing the whole device to be loose, even being separated from the sickbed, and further enabling the air to enter the air supplementing mechanism to be automatically clamped into the air pipe 24 when the balloon 24 is pressed, and the air supplementing mechanism is enabled to be clamped in the first air pipe 43 when the air is reset, and the air supplementing mechanism is enabled to be compressed into the air channel to be compressed, and the air is enabled to be compressed in the air channel to be in the emergency, and the emergency, when the emergency operation is enabled to be compressed, and the air is enabled to be compressed.

After the rescue is finished, the first rotating shaft 4 is reversely rotated to enable the third screw rod 37 to reversely rotate, so that the clamping block 2 slides into the sliding groove 36 under the action of screw thread transmission, and further the rest of the frame of the clamping block 2 is separated, so that the clamping frame 1 is taken down from the frame, the operation is simple and convenient, the disassembly and the assembly are convenient, and the time and the labor are saved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Claims

1. Mechanical pressing device for sudden respiratory arrest in emergency department, comprising a clamping frame (1) for being mounted on a patient bed, characterized in that: the clamping frame (1) is provided with a second bracket (11) capable of adjusting the height and the horizontal position, the second bracket (11) is provided with a pressing mechanism and a driving mechanism, the driving mechanism is in transmission connection with the pressing mechanism, the driving mechanism can adjust the power, the clamping frame (1) is provided with a self-tightening mechanism, and the pressing mechanism is in transmission connection with the self-tightening mechanism in a pneumatic mode;

the driving mechanism comprises a movable motor (13) fixed on the bottom surface of a second bracket (11), the second bracket (11) is horizontally arranged, and a turntable (31) is fixedly connected with the upper surface of the second bracket (11) in a rotating way;

the pressing mechanism comprises a pressing rod (18) penetrating through and connected to the second bracket (11) in a sliding manner, the pressing rod (18) is vertically arranged downwards, and a pressing plate (23) is fixed at the lower end of the pressing rod (18); the bottom surface of the pressing plate (23) is fixedly provided with a balloon (24), an arc-shaped spring plate (39) is arranged in the balloon (24), the middle part of the outer cambered surface of the spring plate (39) can be in buckling contact with the inner wall of the balloon (24), two ends of the spring plate (39) are hinged with the bottom surface of the pressing plate (23) through a connecting rod II (40), and the balloon (24) is communicated with the self-tightening mechanism through a pipeline; the middle part of the compression bar (18) is fixedly provided with a convex ring (22), the convex ring (22) is connected with the bottom surface of the bracket II (11) through a spring (21), the upper end of the compression bar (18) is fixedly provided with a pin rod (19), the pin rod (19) is inserted into a strip-shaped hole (16) and can slide in the strip-shaped hole (16), the strip-shaped hole (16) is formed in the middle part of the swing bar (15), one end of the swing bar (15) is hinged to the upper end of the bracket III (20), and the bracket III (20) is fixed on the bracket II (11); a fourth bracket (34) and a fifth bracket (35) are fixed on the second bracket (11), the upper dead axle of the fourth bracket (34) is rotationally connected with a turbine (17), the position, far away from the center of a circle, on the disc surface of the turbine (17) is hinged with one end, far away from the third bracket (20), of the swing rod (15) through a first connecting rod (14), and the fifth bracket (35) is rotationally connected with a worm (33);

the self-tightening mechanism comprises a sliding groove (36) formed in the upper side wall of the inside of the clamping frame (1), and an inverted L-shaped clamping block (2) is connected in the sliding groove (36) in a sliding manner;

a threaded hole (38) is formed in the upper surface of the clamping block (2), and the threaded hole (38) is internally connected with a screw rod III (37) in a threaded manner; the upper side wall of the clamping frame (1) is fixedly provided with a volute (3), the volute (3) is penetrated and fixedly connected with a first rotating shaft (4) in a rotating way, the first rotating shaft (4) is fixedly connected with an impeller (44) in the volute (3), the lower end of the first rotating shaft (4) is fixedly connected with a third screw rod (37) in a coaxial way, and the first rotating shaft (4) is fixedly connected to the clamping frame (1) in a rotating way;

the self-tightening mechanism further comprises a first air pipe (5) and a second air pipe (43) which are fixed on the pressing plate (23), the first air pipe (5) and the second air pipe (43) are communicated with the balloon (24), and a first check valve (41) is connected to the first air pipe (5); the second air pipe (43) is connected with a second check valve (42), and the first air pipe (5) is fixed and communicated with the side wall of the volute (3); the conducting direction of the first check valve (41) points to the volute (3), and the conducting direction of the second check valve (42) points to the balloon (24).

2. A mechanical compression device for sudden respiratory arrest in emergency departments as claimed in claim 1, wherein: the rotary table (31) is in transmission connection with the motor (13), a plurality of gear rings (30) with different diameters are fixed on the rotary table (31), and the gear rings (30) are concentrically arranged; the driving mechanism further comprises an air cylinder (32) fixed on the upper surface of the second bracket (11), a piston rod end of the air cylinder (32) is vertically and fixedly connected with a supporting rod, the upper end of the supporting rod is fixedly connected with a lantern ring (27), the inside of the lantern ring (27) is inserted and fixedly connected with a second rotating shaft (28) in a rotating mode, two ends of the second rotating shaft (28) are respectively and coaxially fixedly connected with a polygonal rod (26) and a gear (29), the gear (29) can be respectively and meshed with each gear ring (30), and the polygonal rod (26) is in transmission connection with the pressing mechanism; the clamping frame is characterized in that a first sliding rod (8) which is horizontally arranged is fixed on the side wall of the clamping frame (1), the cross section of the first sliding rod (8) is polygonal, the first sliding rod (8) penetrates through and is connected onto the first bracket (6) in a sliding mode, the first bracket (6) is arranged in the vertical direction, the first bracket (6) penetrates through and is connected with a first screw rod (7) in a threaded mode, the first screw rod (7) and the first sliding rod (8) are mutually parallel and fixedly connected onto the side wall of the clamping frame (1) in a rotating mode, a flat plate (9) is fixed at the upper end of the first bracket (6), a second sliding rod (12) which is vertically upwards arranged is fixed on the upper surface of the flat plate (9), the cross section of the second sliding rod (12) is polygonal, the second sliding rod (12) penetrates through and is connected onto the second bracket (11) in a sliding mode, the second screw rod (10) penetrates through and is connected onto the second bracket (11) in a threaded mode, and the second screw rod (10) and the second sliding rod (12) are mutually parallel and fixedly connected onto the upper surface of the flat plate (9).

3. A mechanical compression device for sudden respiratory arrest in emergency departments as claimed in claim 2, wherein: the worm (33) is meshed with the turbine (17), one end of the worm (33) is coaxially and fixedly connected with the sliding sleeve (25), and the multi-edge rod (26) is slidably connected in the sliding sleeve (25).