Traction stretching device based on orthopedic trauma postoperative recovery

Abstract

The invention discloses a traction stretching device for orthopedic trauma postoperative recovery, and relates to the technical field of orthopedic recovery. The traction stretching device based on orthopedic trauma postoperative recovery comprises a hollow cover, the bottom of the hollow cover is rotationally connected with a rotating disc through a rotating shaft, the bottom of the rotating disc is fixedly connected with two elastic bandages, each elastic bandage is provided with a buckle, the top of the hollow cover is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the rotating shaft. And an operation screen is embedded in the mounting plate. The traction and stretching device for orthopedic trauma postoperative recovery facilitates traction and stretching exercise on legs and arms, is higher in applicability and more convenient to use, meanwhile, can adjust and control the traction and stretching strength, can play a role in preventing deep vein thrombosis, can be used by a patient during on-bed and off-bed exercise, and is convenient to use. The exercise time of the patient can be monitored through the operation screen; the constant clamping force can be guaranteed, the clamping effect is guaranteed, and meanwhile discomfort to a patient is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic recovery, and specifically to a traction stretching device for orthopedic trauma postoperative recovery. Background Technique

[0002] ‌The traction stretching device for orthopedic trauma postoperative recovery is a device designed specifically for orthopedic trauma postoperative recovery, aiming to promote the rehabilitation of patients through traction stretching exercises.

[0003] However, when the existing traction stretching device for orthopedic trauma postoperative recovery is in use, different devices are needed to perform traction stretching exercises on the patient's legs and arms, which is not convenient and fast. At the same time, when clamping and fixing the legs and arms, it is not easy to control and adjust the clamping force, which affects the clamping effect and is likely to cause discomfort to the patient. Moreover, generally, the patient needs to lie in bed for exercises, which is not convenient for exercises when getting out of bed and affects the exercise effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a traction stretching device for orthopedic trauma postoperative recovery to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A traction stretching device for orthopedic trauma postoperative recovery, including a hollow cover. The bottom of the hollow cover is rotationally connected to a rotating disk through a rotating shaft, and two elastic straps are fixedly connected to the bottom of the rotating disk. A buckle is provided on each elastic strap, and a mounting plate is fixedly connected to the top of the hollow cover. An operation screen is embedded in the mounting plate, and a first lifting module is provided on the top of the hollow cover. A moving frame is connected to the first lifting module, and a moving plate is connected to the moving frame through a moving mechanism. A guide rail is fixedly connected to the side wall of the moving plate, and two symmetrically arranged sliders are slidably connected to the side wall of the guide rail. Two symmetrically arranged L-shaped plates are connected to the side wall of each moving plate through a first pressure control mechanism, and an arc-shaped plate is fixedly connected to the bottom of each L-shaped plate. Two hollow rubber bags are fixedly connected to the opposite side walls of the two arc-shaped plates, and the movement of the two sliders is pushed by a pushing mechanism. A liquid filling mechanism for filling the rubber bags is provided on the side wall of the moving frame, and a limiting mechanism for limiting the rotating shaft is also provided in the hollow cover.

[0006] Preferably, the first pressure control mechanism includes a first T-shaped guide rod fixedly connected to the side wall of each slider. A first moving block is sleeved on the side wall of each first T-shaped guide rod, a first spring is sleeved on the side wall of the first T-shaped guide rod, and the first moving block is fixed to the side wall of the L-shaped plate. A U-shaped block is fixedly connected to the side wall of one of the sliders, and a distance sensor is fixedly inserted into the side wall of the U-shaped block.

[0007] Preferably, the pushing mechanism includes a first connecting plate fixedly connected to the side wall of the moving frame, and a second moving block is connected to the top of the first connecting plate through a second lifting module. The side walls of the second moving blocks are connected to a pushing plate through a first L-shaped frame, and an inclined surface is provided at the bottom of the pushing plate. The side walls of the first moving blocks are fixedly connected to a pushing rod, and a reset mechanism is provided between the two sliders.

[0008] Preferably, the reset mechanism includes two symmetrically arranged fixing rods fixedly connected to the side walls of the sliders, and two symmetrically arranged reset springs are sleeved on the side walls of the fixing rods.

[0009] Preferably, the liquid filling mechanism includes a second connecting plate fixedly connected to the side wall of the moving frame, and a fixing cover is fixedly connected to the side wall of the second connecting plate. A sliding plate is slidably connected in the fixing cover, and a second L-shaped block is fixedly connected between the sliding plate and the pushing plate. A hose is fixedly connected between each rubber bladder and the fixing cover, and hydraulic oil is filled in the fixing cover. A second pressure control mechanism is provided on the side wall of the fixing cover.

[0010] Preferably, the second pressure control mechanism includes a circular ring fixedly inserted into the side wall of the fixing cover, and an L-shaped pipe is rotatably connected in the circular ring. The upper end of the L-shaped pipe is fixedly connected to a fixing pipe, and a counterweight plate is arranged in the fixing pipe. A retaining ring is fixedly connected to the inner side wall of the fixing pipe, and a gravity mechanism is arranged at the bottom of the L-shaped pipe.

[0011] Preferably, the gravity mechanism includes a connecting rod fixedly connected to the bottom of the L-shaped pipe, and a gravity block is fixedly connected to the lower end of the connecting rod.

[0012] Preferably, the moving mechanism includes a sleeve fixedly connected to the side wall of the moving plate, and a sleeve rod is inserted into the sleeve. The other end of the sleeve rod is fixed to the side wall of the moving frame. A threaded pipe is fixedly connected to the side wall of the moving plate, and a threaded rod is threadedly connected in the threaded pipe. The other end of the threaded rod is rotatably connected to the side wall of the moving frame. A motor is fixedly connected to the side wall of the moving frame, and the output end of the motor is fixed to one end of the threaded rod.

[0013] Preferably, the limiting mechanism includes a fixing ring fixedly sleeved on the side wall of the rotating shaft, and a plurality of arrayed limiting grooves are formed in the side wall of the fixing ring. The bottom of the hollow cover is connected to a limiting block through a reset component.

[0014] Preferably, the reset component includes a fixing block fixedly connected to the bottom of the hollow cover, and two symmetrically arranged second T-shaped guide rods are inserted into the side wall of the fixing block. One end of each second T-shaped guide rod is fixed to the side wall of the limiting block, and a second spring is sleeved on the side wall of each second T-shaped guide rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This traction and stretching device for orthopedic trauma postoperative recovery, by setting up the first pressure control mechanism, etc., when it is necessary to perform traction and stretching on the leg, first fasten the elastic strap to the patient's chest position through the buckle. When it is necessary to train the leg, start the motor. The rotation of the motor drives the rotation of the threaded rod, thereby driving the moving plate and the slider to move towards the fixed cover, and driving the movement of the L-shaped plate and the arc plate through the first pressure control mechanism, so as to adjust the position of the arc plate on the leg. Then, drive the moving frame to move downward through the first lifting module, and further drive the arc plate to move downward and align with the leg. Then, drive the second moving block to move downward through the second lifting module. At the same time, drive the two push plates to move downward through the first L-shaped frame. When the inclined surface abuts against the side wall of the push rod, it can push the two first moving blocks to move closer to each other, and drive the two sliders to move closer to each other along the guide rail through the first T-shaped guide rod. At the same time, the return spring is compressed, so that the rubber bladder abuts against the leg, thereby being able to clamp and limit the leg. Then, drive the moving plate to continue to move through the moving mechanism, and drive the arc plate to continue to move through the L-shaped plate, so as to be able to perform traction and stretching operations on the leg. And, when performing traction and stretching, the first spring is gradually stretched. By detecting the change in the distance of the first moving block through the distance sensor, the stretching amount of the first spring can be determined, and then the intensity of traction and stretching can be adjusted and controlled. Similarly, when it is necessary to exercise the arm, the hollow cover can be rotated along the rotating shaft, so as to adjust the orientation of the arc plate. At the same time, when the rotating shaft rotates, it can drive the fixed ring to rotate synchronously, so that the limiting block slides out of the limiting groove and slides on the side wall of the fixed ring. At the same time, the second spring is compressed. After the adjustment is completed, the limiting block can abut against the side wall of another limiting groove under the action of the second spring, so as to limit the rotating shaft, which is more stable and reliable, has stronger applicability, and can ensure the exercise effect, and can play a role in preventing blood clots. It can be used for patients to exercise both in bed and out of bed, and can monitor the exercise time of patients through the operation screen. This traction and stretching device for orthopedic trauma postoperative recovery, by setting up a liquid filling mechanism, etc., when clamping and limiting the leg or arm, when the push plate moves downward, it can drive the sliding plate to move downward along the fixed cover through the second L-shaped block. At this time, the hydraulic oil temporarily stored in the fixed cover can be squeezed, and at the same time, it enters the rubber bladder through the hose, so that the rubber bladder gradually expands. When the rubber bladder abuts against the leg or arm, it can clamp and limit the leg or arm. When the clamping pressure is relatively large, it can push the counterweight plate to move upward along the fixed pipe, so as to ensure the constancy of the clamping force, ensure the clamping effect, and avoid causing discomfort to the patient. And, due to the gravity of the gravity block, it can ensure that the fixed pipe is always in an upward state, so as to ensure the normal exercise of the patient both in bed and out of bed. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the overall structure of the present invention from another perspective; Figure 3 Partial cross-sectional structure schematic diagram of the hollow cover in the present invention; Figure 4 For Figure 1 Enlarged structure schematic diagram of position A in Figure 5 For Figure 3 Enlarged structure schematic diagram of position B in Figure 6 For Figure 3 Enlarged structure schematic diagram of position C in Figure 7 For Figure 3 Enlarged structure schematic diagram of position D in Figure 8 For Figure 4 Enlarged structure schematic diagram of position E in

[0017] In the figure: 1, hollow cover; 2, first pressure control mechanism; 201, first T-shaped guide rod; 202, first spring; 203, U-shaped block; 204, distance sensor; 205, first moving block; 3, reset mechanism; 301, fixed rod; 302, reset spring; 4, pushing mechanism; 401, second lifting module; 402, second moving block; 403, first L-shaped frame; 404, pushing plate; 405, inclined plane; 406, pushing rod; 407, first connecting plate; 5, liquid filling mechanism; 501, fixed cover; 502, sliding plate; 503, second L-shaped block; 504, hose; 505, second connecting plate; 6, second pressure control mechanism; 601, circular ring; 602, L-shaped pipe; 603, fixed pipe; 604, retaining ring; 605, counterweight plate; 7, gravity mechanism; 701, connecting rod; 702, gravity block; 8, moving mechanism; 801, sleeve rod; 802, sleeve; 803, threaded pipe; 804, threaded rod; 805, motor; 9, limiting mechanism; 901, fixed ring; 902, limiting groove; 903, limiting block; 10, reset component; 1001, fixed block; 1002, second T-shaped guide rod; 1003, second spring; 11, rotating shaft; 12, rotating disc; 13, elastic binding band; 14, buckle; 15, mounting plate; 16, operation screen; 17, first lifting module; 18, moving frame; 19, moving plate; 20, guide rail; 21, slider; 22, L-shaped plate; 23, arc-shaped plate; 24, rubber bladder. Detailed implementation manners

[0018] 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, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-8 , the present invention provides a technical solution: a traction and stretching device for orthopedic trauma postoperative recovery, including a hollow cover 1. The bottom of the hollow cover 1 is rotatably connected to a rotating disk 12 through a rotating shaft 11, and two elastic straps 13 are fixedly connected to the bottom of the rotating disk 12. A buckle 14 is provided on each elastic strap 13. The top of the hollow cover 1 is fixedly connected to a mounting plate 15, an operation screen 16 is embedded on the mounting plate 15, and a first lifting module 17 is arranged on the top of the hollow cover 1. A moving frame 18 is connected to the first lifting module 17. A moving plate 19 is connected to the moving frame 18 through a moving mechanism 8. A guide rail 20 is fixedly connected to the side wall of the moving plate 19, and two symmetrically arranged sliders 21 are slidably connected to the side wall of the guide rail 20. Two symmetrically arranged L-shaped plates 22 are connected to the side wall of each moving plate 19 through a first pressure control mechanism 2, and an arc-shaped plate 23 is fixedly connected to the bottom of each L-shaped plate 22. Two hollow rubber capsules 24 are fixedly connected to the opposite side walls of the two arc-shaped plates 23. The movement of the two sliders 21 is pushed by a pushing mechanism 4. A liquid filling mechanism 5 for filling the rubber capsules 24 is arranged on the side wall of the moving frame 18, and a limiting mechanism 9 for limiting the rotating shaft 11 is also arranged in the hollow cover 1. It is convenient to perform traction and stretching exercises on the legs and arms, with stronger applicability and more convenient use. At the same time, it can adjust and control the intensity of traction and stretching, play a role in preventing blood clots, and can be used by patients for exercises both in bed and out of bed. The exercise time of the patient can be monitored through the operation screen 16; it can ensure the constancy of the clamping force, ensure the clamping effect, and avoid causing discomfort to the patient.

[0020] The first pressure control mechanism 2 includes a first T-shaped guide rod 201 fixedly connected to the side wall of each slider 21. A first moving block 205 is sleeved on the side wall of each first T-shaped guide rod 201. A first spring 202 is sleeved on the side wall of the first T-shaped guide rod 201, and the first moving block 205 is fixedly connected to the side wall of the L-shaped plate 22. A U-shaped block 203 is fixedly connected to the side wall of one of the sliders 21, and a distance sensor 204 is fixedly inserted into the side wall of the U-shaped block 203. When performing traction and stretching, the first spring 202 is gradually stretched. By detecting the change in the distance of the first moving block 205 through the distance sensor 204, the stretching amount of the first spring 202 can be determined, and then the intensity of traction and stretching can be adjusted and controlled.

[0021] The driving mechanism 4 includes a first connecting plate 407 fixedly connected to the side wall of the moving frame 18. The top of the first connecting plate 407 is connected with a second moving block 402 through a second lifting module 401. The side walls of the second moving blocks 402 are connected with a pushing plate 404 through a first L-shaped frame 403. The bottom of the pushing plate 404 is provided with an inclined surface 405. The side walls of the first moving blocks 205 are fixedly connected with a pushing rod 406. A reset mechanism 3 is arranged between the two sliders 21. When the second lifting module 401 drives the second moving block 402 to move downward, at the same time, the first L-shaped frame 403 drives the two pushing plates 404 to move downward. When the inclined surface 405 abuts against the side wall of the pushing rod 406, the two first moving blocks 205 can be pushed to move closer to each other, and the two sliders 21 are driven to move closer to each other along the guide rail 20 through the first T-shaped guide rod 201.

[0022] The reset mechanism 3 includes two symmetrically arranged fixing rods 301 fixedly connected to the side walls of the sliders 21. The side walls of the fixing rods 301 are sleeved with two symmetrically arranged reset springs 302. When the two sliders 21 move closer to each other along the guide rail 20, the reset springs 302 are compressed, which can play a role in resetting the movement of the sliders 21.

[0023] The liquid filling mechanism 5 includes a second connecting plate 505 fixedly connected to the side wall of the moving frame 18. The side wall of the second connecting plate 505 is fixedly connected with a fixing cover 501. A sliding plate 502 is slidably connected in the fixing cover 501. A second L-shaped block 503 is fixedly connected between the sliding plate 502 and the pushing plate 404. A hose 504 is fixedly connected between each rubber bladder 24 and the fixing cover 501. The fixing cover 501 is filled with hydraulic oil. A second pressure control mechanism 6 is arranged on the side wall of the fixing cover 501. When clamping and limiting the leg or arm, when the pushing plate 404 moves downward, the sliding plate 502 can be driven to move downward along the fixing cover 501 through the second L-shaped block 503. At this time, the hydraulic oil temporarily stored in the fixing cover 501 can be extruded, and at the same time, it enters the rubber bladder 24 through the hose 504, so that the rubber bladder 24 gradually expands. When the rubber bladder 24 abuts against the leg or arm, the leg or arm can be clamped and limited.

[0024] The second pressure control mechanism 6 includes a circular ring 601 fixedly inserted into the side wall of the fixing cover 501. An L-shaped pipe 602 is rotatably connected in the circular ring 601. The upper end of the L-shaped pipe 602 is fixedly connected with a fixing pipe 603. A counterweight plate 605 is arranged in the fixing pipe 603. A retaining ring 604 is fixedly connected to the inner side wall of the fixing pipe 603. A gravity mechanism 7 is arranged at the bottom of the L-shaped pipe 602. When the clamping pressure is large, the counterweight plate 605 can be pushed to move upward along the fixing pipe 603, so as to ensure the constancy of the clamping force, ensure the clamping effect and avoid causing discomfort to the patient.

[0025] The gravity mechanism 7 includes a connecting rod 701 fixedly connected to the bottom of the L-shaped tube 602, and a gravity block 702 is fixedly connected to the lower end of the connecting rod 701. Due to the gravity of the gravity block 702, it can ensure that the fixed tube 603 is always in an upward state, thus ensuring the normal exercise of the patient in bed and out of bed.

[0026] The moving mechanism 8 includes a sleeve 802 fixedly connected to the side wall of the moving plate 19, and a sleeve rod 801 is inserted into the sleeve 802. The other end of the sleeve rod 801 is fixed to the side wall of the moving frame 18. A threaded tube 803 is fixedly connected to the side wall of the moving plate 19, and a threaded rod 804 is threadedly connected to the threaded tube 803. The other end of the threaded rod 804 is rotatably connected to the side wall of the moving frame 18. A motor 805 is fixedly connected to the side wall of the moving frame 18, and the output end of the motor 805 is fixed to one end of the threaded rod 804.

[0027] The limiting mechanism 9 includes a fixing ring 901 fixedly sleeved on the side wall of the rotating shaft 11, and a plurality of arrayed limiting grooves 902 are formed on the side wall of the fixing ring 901. The bottom of the hollow cover 1 is connected with a limiting block 903 through a reset assembly 10. When exercising the arm, the hollow cover 1 can be rotated along the rotating shaft 11 to adjust the orientation of the arc plate 23. At the same time, when the rotating shaft 11 rotates, it can drive the fixing ring 901 to rotate synchronously, so that the limiting block 903 slides out of the limiting groove 902 and slides on the side wall of the fixing ring 901. After the adjustment is completed, the limiting block 903 can abut against the side wall of another limiting groove 902 under the action of the reset assembly 10, thereby limiting the rotating shaft 11, which is more stable and reliable.

[0028] The reset assembly 10 includes a fixing block 1001 fixedly connected to the bottom of the hollow cover 1, and two symmetrically arranged second T-shaped guide rods 1002 are inserted into the side wall of the fixing block 1001. One end of the second T-shaped guide rod 1002 is fixed to the side wall of the limiting block 903, and a second spring 1003 is sleeved on the side wall of each second T-shaped guide rod 1002, which plays a guiding and resetting role for the movement of the limiting block 903.

[0029] Working principle: When in use, when traction and stretching of the leg are required, first tie the elastic band 13 to the chest position of the patient through the buckle 14. When training the leg, start the motor 805. The rotation of the motor 805 drives the rotation of the threaded rod 804, thereby driving the moving plate 19 and the slider 21 to move towards the direction close to the fixed cover 501, and driving the movement of the L-shaped plate 22 and the arc plate 23 through the first pressure control mechanism 2, so as to adjust the position of the arc plate 23 on the leg. Then, drive the moving frame 18 to move downward through the first lifting module 17, and further drive the arc plate 23 to move downward and align with the leg. Next, the second lifting module 401 drives the second moving block 402 to move downward. At the same time, the first L-shaped frame 403 drives the two pushing plates 404 to move downward. When the inclined surface 405 abuts against the side wall of the push rod 406, it can push the two first moving blocks 205 to move closer to each other, and drive the two sliders 21 to move closer to each other along the guide rail 20 through the first T-shaped guide rod 201. At the same time, the return spring 302 is compressed, so that the rubber bladder 24 abuts against the leg, thereby being able to clamp and limit the leg. Then, the moving mechanism 8 drives the moving plate 19 to continue to move, and drives the arc plate 23 to continue to move through the L-shaped plate 22, so as to be able to perform traction and stretching operations on the leg; During traction and stretching, the first spring 202 is gradually stretched. By detecting the change in the distance of the first moving block 205 through the distance sensor 204, the stretching amount of the first spring 202 can be determined, and then the intensity of traction and stretching can be adjusted and controlled. Similarly, when it is necessary to exercise the arm, the hollow cover 1 can be rotated along the rotating shaft 11, so as to adjust the orientation of the arc plate 23. At the same time, when the rotating shaft 11 rotates, it can drive the fixed ring 901 to rotate synchronously, so that the limiting block 903 slides out of the limiting groove 902 and slides on the side wall of the fixed ring 901. At the same time, the second spring 1003 is compressed. After the adjustment is completed, the limiting block 903 can abut against the side wall of another limiting groove 902 under the action of the second spring 1003, so as to limit the rotating shaft 11, which is more stable and reliable, has stronger applicability, and ensures the exercise effect, and can play a role in preventing blood clots. It can be used for patients to exercise both in bed and out of bed, and the exercise time of the patient can be monitored through the operation screen 16; Moreover, when clamping and limiting the leg or arm, when the pushing plate 404 moves downward, it can drive the sliding plate 502 to move downward along the fixed cover 501 through the second L-shaped block 503. At this time, the hydraulic oil temporarily stored in the fixed cover 501 can be squeezed, and at the same time, it enters the rubber bladder 24 through the hose 504, so that the rubber bladder 24 gradually expands. When the rubber bladder 24 abuts against the leg or arm, it can clamp and limit the leg or arm. When the clamping pressure is large, it can push the counterweight plate 605 to move upward along the fixed tube 603, so as to ensure the constancy of the clamping force, ensure the clamping effect, and avoid causing discomfort to the patient. And, due to the gravity of the gravity block 702, it can ensure that the fixed tube 603 is always in an upward state, so as to ensure the normal exercise of the patient both in bed and out of bed.

[0030] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] The present invention and its implementation manners have been described above. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural manners and embodiments similar to the technical solution without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A traction and stretching device for postoperative recovery of orthopedic trauma, comprising a hollow cover (1), characterized in that: The bottom of the hollow cover (1) is rotatably connected to a rotating disk (12) via a rotating shaft (11), and the bottom of the rotating disk (12) is fixedly connected to two elastic straps (13), each of which is provided with a buckle (14), and the top of the hollow cover (1) is fixedly connected to a mounting plate (15), an operating screen (16) is embedded on the mounting plate (15), and a first lifting module (17) is provided on the top of the hollow cover (1), a moving frame (18) is connected to the first lifting module (17), and a moving plate (19) is connected to the moving frame (18) via a moving mechanism (8), and a side wall of the moving plate (19) is fixedly connected to a guide rail (20), and the guide rail The side wall of the movable frame (20) is slidably connected to two symmetrically arranged sliders (21), the side wall of each movable plate (19) is connected to two symmetrically arranged L-shaped plates (22) through a first pressure control mechanism (2), and the bottom of each L-shaped plate (22) is fixedly connected to an arc plate (23), the opposite side walls of the two arc plates (23) are fixedly connected to two hollow rubber bags (24), and the movement of the two sliders (21) is driven by a driving mechanism (4), the side wall of the movable frame (18) is provided with a filling mechanism (5) for flushing the rubber bag (24), and a limiting mechanism (9) for limiting the rotation shaft (11) is also provided in the hollow cover (1).

2. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 1 is characterized in that: The first pressure control mechanism (2) comprises a first T-shaped guide rod (201) fixedly connected to the side wall of each slider (21), and the side wall of each first T-shaped guide rod (201) is sleeved with a first moving block (205), the side wall of the first T-shaped guide rod (201) is sleeved with a first spring (202), and the first moving block (205) is fixed to the side wall of the L-shaped plate (22), the side wall of one of the sliders (21) is fixedly connected to a U-shaped block (203), and the side wall of the U-shaped block (203) is fixedly inserted with a distance sensor (204).

3. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 1 is characterized in that: The pushing mechanism (4) comprises a first connecting plate (407) fixedly connected to the side wall of the moving frame (18), and the top of the first connecting plate (407) is connected to the second moving block (402) via a second lifting module (401), the side wall of each of the second moving blocks (402) is connected to a pushing plate (404) via a first L-shaped frame (403), and the bottom of the pushing plate (404) is provided with an inclined surface (405), the side wall of each of the first moving blocks (205) is fixedly connected to a pushing rod (406), and a reset mechanism (3) is provided between the two sliders (21).

4. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 3 is characterized in that: The reset mechanism (3) comprises two symmetrically arranged fixing rods (301) fixedly connected to the side walls of each slider (21), and the side walls of the fixing rods (301) are sleeved with two symmetrically arranged reset springs (302).

5. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 1 is characterized in that: The liquid filling mechanism (5) comprises a second connecting plate (505) fixedly connected to the side wall of the moving frame (18), and the side wall of the second connecting plate (505) is fixedly connected to a fixed cover (501), a sliding plate (502) is slidably connected inside the fixed cover (501), and a second L-shaped block (503) is fixedly connected between the sliding plate (502) and the pushing plate (404), a hose (504) is fixedly connected between each of the rubber bags (24) and the fixed cover (501), and the fixed cover (501) is filled with hydraulic oil, and a second pressure control mechanism (6) is provided on the side wall of the fixed cover (501).

6. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 5 is characterized in that: The second pressure control mechanism (6) comprises a circular ring (601) fixedly inserted into the side wall of the fixed cover (501), and an L-shaped tube (602) is rotatably connected inside the circular ring (601), a fixed tube (603) is fixedly connected to the upper end of the L-shaped tube (602), and a counterweight plate (605) is arranged inside the fixed tube (603), a retaining ring (604) is fixedly connected to the inner side wall of the fixed tube (603), and a gravity mechanism (7) is arranged at the bottom of the L-shaped tube (602).

7. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 6 is characterized in that: The gravity mechanism (7) comprises a connecting rod (701) fixedly connected to the bottom of the L-shaped tube (602), and a gravity block (702) is fixedly connected to the lower end of the connecting rod (701).

8. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 1 is characterized in that: The moving mechanism (8) comprises a sleeve (802) fixedly connected to the side wall of the moving plate (19), a sleeve rod (801) being inserted into the sleeve (802), the other end of the sleeve rod (801) being fixed to the side wall of the moving frame (18), a threaded tube (803) being fixedly connected to the side wall of the moving plate (19), a threaded rod (804) being internally threadedly connected to the threaded tube (803), the other end of the threaded rod (804) being rotatably connected to the side wall of the moving frame (18), a motor (805) being fixedly connected to the side wall of the moving frame (18), and an output end of the motor (805) being fixed to one end of the threaded rod (804).

9. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 1, characterized in that: The limiting mechanism (9) comprises a fixing ring (901) fixedly sleeved on the side wall of the rotating shaft (11), and the side wall of the fixing ring (901) is provided with a plurality of array limiting grooves (902), and the bottom of the hollow cover (1) is connected to a limiting block (903) via a reset assembly (10).

10. The traction and stretching device for postoperative recovery of orthopedic trauma according to claim 9, characterized in that: The reset assembly (10) comprises a fixed block (1001) fixedly connected to the bottom of the hollow cover (1), and two symmetrically arranged second T-shaped guide rods (1002) are inserted into the side wall of the fixed block (1001), one end of the second T-shaped guide rod (1002) is fixed to the side wall of the limit block (903), and the side wall of each second T-shaped guide rod (1002) is sleeved with a second spring (1003).

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