Multifunctional traction device for orthopedic rehabilitation nursing

Abstract

The present application relates to the technical field of medical orthopedic rehabilitation nursing, and particularly relates to a multifunctional traction device for orthopedic rehabilitation nursing. The multifunctional traction device comprises a self-locking telescopic frame, the self-locking telescopic frame is detachably connected with a connecting frame, one side of the connecting frame is rotationally connected with a first swing frame, the first swing frame is detachably connected with a counterweight, the first swing frame is fixedly connected with a fixed plate, the fixed plate is rotationally connected with a hand lever, the other side of the connecting frame is rotationally connected with a second swing frame, the connecting frame and the second swing frame are both rotationally connected with a plurality of guide rollers, and the hand lever is fixedly connected with a connecting rope which is in contact with the guide rollers on the connecting frame and the second swing frame. The present application adjusts the traction force by changing the swing angle of the first swing frame where the counterweight is located on the basis of not increasing or reducing the counterweight, and overcomes the drawbacks of low precision, complicated operation and great safety hazards existing in the existing mode of increasing or reducing the counterweight.

Description

Technical Field

[0001] This invention relates to the field of medical orthopedic rehabilitation and nursing technology, and in particular to a multifunctional traction device for orthopedic rehabilitation and nursing. Background Technology

[0002] In orthopedic rehabilitation nursing, traction therapy is one of the commonly used rehabilitation methods. It is mainly used to continuously or intermittently traction the patient's lower limbs to relieve muscle spasms, stretch soft tissues, maintain joint space, prevent joint adhesions, and promote functional recovery after fracture or joint surgery.

[0003] Existing traction devices are generally simple in structure, mainly consisting of counterweights, connecting ropes, and guide wheels. In use, the connecting rope is wound around the guide wheel, with one end connected to the counterweight and the other end connected to the patient's leg. The counterweight's own weight generates tension on the connecting rope, which is then transmitted to the patient's leg after being deflected by the guide wheel, thereby applying traction force to the patient's leg and achieving the purpose of traction therapy.

[0004] During traction therapy, the traction force needs to be adjusted according to factors such as the patient's weight, condition, and treatment stage. Current traction equipment typically adjusts the traction force by increasing or decreasing the number of counterweights. To increase the traction force, counterweights are added to the counterweight frame; to decrease the traction force, some counterweights are removed. However, this method of adjusting the traction force by increasing or decreasing the number of counterweights has the following drawbacks: The weight of each counterweight is fixed, and the traction force can only be changed in a stepwise manner, which cannot be continuously and precisely adjusted. This makes it difficult to meet the requirements of precise traction in clinical practice. Furthermore, medical staff need to repeatedly move, add, or remove counterweights. When the counterweight is large, it is time-consuming and laborious, increasing the nursing burden. Summary of the Invention

[0005] To address the problems of low adjustment accuracy, cumbersome operation, and high labor intensity of existing traction devices, this invention provides a multifunctional traction device for orthopedic rehabilitation and nursing.

[0006] The technical solution of the present invention is: a multifunctional traction device for orthopedic rehabilitation and nursing, comprising a self-locking telescopic frame, a connecting frame detachably connected to the self-locking telescopic frame, a first swing frame rotatably connected to one side of the connecting frame, a counterweight detachably connected to the first swing frame, a fixed plate fixedly connected to the first swing frame, a hand crank rotatably connected to the fixed plate, a second swing frame rotatably connected to the other side of the connecting frame, a plurality of guide rollers rotatably connected to both the connecting frame and the second swing frame, a connecting rope fixedly connected to the hand crank that contacts the guide rollers on both the connecting frame and the second swing frame, a reserved portion of the connecting rope on the hand crank, a bolt frame detachably connected to the end of the connecting rope away from the hand crank, a locking mechanism provided on the upper side of the connecting frame for fixing the second swing frame, and a locking mechanism provided on the first swing frame for fixing the hand crank.

[0007] Furthermore, the first swing frame is detachably connected to a guide member, which is used to guide the connecting rope.

[0008] Furthermore, the locking mechanism includes a first fixing block detachably connected to the connecting frame, the first fixing block being provided with a spring pin, and the second swing frame being provided with a plurality of through holes, the spring pin being used to insert into one of the through holes on the second swing frame.

[0009] Furthermore, the locking mechanism includes a fixed housing fixed to the first swing frame on the side away from the fixed plate. The fixed housing is rotatably connected to the hand crank. The fixed housing is detachably connected to a cover plate. The hand crank is fixed to a ratchet located inside the fixed housing. A plurality of ratchet teeth are rotatably connected inside the fixed housing. The plurality of ratchet teeth are used to unidirectionally limit the ratchet. A torsion spring is provided between the ratchet teeth and the fixed housing.

[0010] Furthermore, the fixed shell has a sliding amount for the ratchet teeth, all of which are slidably connected to the cover plate and the fixed shell, and all of the ratchet teeth are detachably connected to a rotating frame located outside the fixed shell.

[0011] Furthermore, it also includes two connecting shells slidably connected to the second swing frame and symmetrically distributed at the center. Both connecting shells are fixedly connected with pressing teeth. The connecting shells are rotatably connected with locking members. When the two locking members are in contact, the two connecting shells are in contact. The pressing teeth are used to press the other locking member. The connecting rope consists of a first rope and a second rope. One end of the first rope is wound around the hand crank. The first rope contacts all the guide rollers on the connecting frame and the adjacent guide rollers on the second swing frame. The other end of the first rope is detachably connected to the upper connecting shell. One end of the second rope is detachably connected to the lower connecting shell. The second rope contacts the other adjacent guide roller on the second swing frame. The other end of the second rope is detachably connected to the bolt frame.

[0012] Furthermore, the connecting shell is fixedly connected to a second fixing block, and the second fixing block is slidably connected to an arc-shaped rod fixedly connected to the adjacent locking member. A spring is wound around the arc-shaped rod and contacts the adjacent second fixing block.

[0013] Furthermore, the telescopic part of the self-locking telescopic frame is detachably connected to a pad, the pad is hinged to a swing plate, and an anti-slip pad is fixed to the side of the swing plate away from the self-locking telescopic frame. The pad is provided with a lifting component that contacts the swing plate, and the lifting component is used to increase the swing amplitude of the swing plate.

[0014] Furthermore, a sliding plate is slidably connected to the side of the pad away from the hinged portion of the swing plate. The swing plate is detachably connected to an elastic element that contacts the sliding plate. The swing plate and the connecting shell on the lower side are jointly fixed to a wire sleeve. A wire core is slidably connected inside the wire sleeve. One side of the wire core is fixed to the sliding plate, and the other side of the wire core is detachably connected to the locking element near the bolt bracket.

[0015] Furthermore, the swing plate is fixedly connected to a shielding cloth for covering the sliding plate and the elastic element, and the second swing frame is detachably connected to a spring telescopic rod that contacts the adjacent connecting shell.

[0016] The beneficial effects of this invention are as follows: By modifying the existing structure, without adding or reducing the counterweights, this invention adjusts the traction force by changing the swing angle of the first swing frame on which the counterweight is located. When the swing angle is large, the effective component of the counterweight's weight along the traction direction increases, thus increasing the traction force provided. When the swing angle is small, the effective component decreases, thus decreasing the traction force. This achieves traction force adjustment, overcoming the drawbacks of existing methods of adding or removing counterweights, such as low precision, cumbersome operation, and significant safety hazards. The swing plate forms an inclined support for the patient's buttocks, and with the contact of the anti-slip mat with the patient's buttocks, a stable blocking surface is established before traction, inhibiting the patient's body from sliding towards the counterweights. When the patient feels severe pain or obvious discomfort, they only need to actively move their buttocks to trigger the mechanical linkage mechanism, causing the counterweight to quickly disconnect from the patient's legs without waiting for medical personnel to arrive. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 3 This is a three-dimensional sectional view of the self-locking telescopic frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting frame of the present invention; Figure 5 This is an exploded three-dimensional view of the first swing frame of the present invention; Figure 6 This is an exploded three-dimensional view of the second swing frame of the present invention; Figure 7 This is a three-dimensional structural diagram of the first fixing block and the spring pin of the present invention; Figure 8 This is a three-dimensional structural diagram of the internal structure of the fixed shell of the present invention; Figure 9 This is a three-dimensional structural diagram of the ratchet and ratchet teeth of the present invention; Figure 10 This is a three-dimensional structural diagram of the fixed position of the thread sleeve in this invention; Figure 11 This is a three-dimensional structural cross-sectional view of the connecting shell of the present invention; Figure 12 This is a three-dimensional structural cross-sectional view of the shielding cloth of the present invention; Figure 13 This is a three-dimensional structural diagram of the elastic element of the present invention; Figure 14 This is a three-dimensional structural diagram of the swing plate and lifting component of the present invention.

[0018] Parts and their numbers in the diagram: 1-Nursing bed, 2-Self-locking telescopic frame, 3-Connecting frame, 4-First swing frame, 401-Guide, 5-Counterweight, 6-Fixing plate, 7-Hand crank, 8-Second swing frame, 801-Spring telescopic rod, 9-Guide roller, 10-Connecting rope, 1001-First rope, 1002-Second rope, 11-Bolt frame, 12-First fixing block, 13-Spring pin, 14-Fixing shell, 15-Cover plate, 16-Ratchet, 17-Ratchet tooth, 18-Rotating frame, 19-Connecting shell, 20-Extrusion tooth, 21-Locking part, 22-Second fixing block, 23-Arc rod, 24-Pad plate, 25-Swing plate, 26-Anti-slip mat, 27-Lifting part, 28-Sliding plate, 29-Elastic part, 30-Wire sleeve, 31-Wire core, 32-Shielding cloth. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1

[0021] A multifunctional traction device for orthopedic rehabilitation and nursing, such as Figures 1-7As shown, the device includes a self-locking telescopic frame 2. In use, the self-locking telescopic frame 2 is installed onto the nursing bed 1. The self-locking telescopic frame 2 is detachably connected to a connecting frame 3. A first swing frame 4 is rotatably connected to the upper left side of the connecting frame 3. A counterweight 5 is detachably connected to the first swing frame 4. The structure of the self-locking telescopic frame 2 can be referenced to the telescopic frame of a telescopic umbrella. This invention involves two sets of related parts for the self-locking telescopic frame 2, used for patients requiring rehabilitation of both legs. The counterweight 5 can be a circular weight. A fixing plate 6 is fixedly connected to the first swing frame 4. A hand crank 7 is rotatably connected to the fixing plate 6. A second swing frame 8 is rotatably connected to the upper right side of the connecting frame 3. Several guide rollers 9 are rotatably connected to both the connecting frame 3 and the second swing frame 8. A connecting rope 10 is fixedly connected to the hand crank 7, contacting both the connecting frame 3 and the guide rollers 9 on the second swing frame 8. The connecting rope 10 has a reserved portion on the hand crank 7. The first swing frame 4 is divided into sections to facilitate the release of the connecting rope 10. The right end of the connecting rope 10 is detachably connected to a bolt frame 11, which is used to fix the position where the patient needs rehabilitation. By increasing the swing angle of the first swing frame 4, the torque of the counterweight 5 on the fulcrum of the first swing frame 4 is increased. Under the condition of torque balance, the tension of the connecting rope 10 is increased accordingly, thereby increasing the traction force on the patient's leg without increasing the counterweight. This invention adjusts the swing angle of the second swing frame 8 to change the original traction direction, which is close to the axial direction relative to the patient's leg, to an upward tilt, thereby adapting to the patient's later rehabilitation. This method achieves the stability of the traction direction without frequent readjustment. A locking mechanism is provided on the upper side of the connecting frame 3 to fix the swing amplitude of the second swing frame 8. A locking mechanism is provided on the first swing frame 4 to fix the hand crank 7.

[0022] like Figure 5 As shown, the first swing frame 4 is detachably connected to a guide 401, which is used to guide the connecting rope 10. The first swing frame 4 is also detachably connected to a fixing ring, which is used to restrict the guide 401 to rotate on the first swing frame 4.

[0023] like Figures 5-7 As shown, the locking mechanism includes a first fixing block 12 detachably connected to the connecting frame 3. The first fixing block 12 is provided with a spring pin 13. The second swing frame 8 is provided with several through holes. The spring pin 13 is used to insert into one of the through holes on the second swing frame 8. By inserting the spring pin 13 into one of the through holes on the second swing frame 8, the swing angle of the second swing frame 8 is limited. The spring pin 13 is composed of a spring and a limiting pin. The spring is located between the limiting pin and the first fixing block 12.

[0024] like Figure 8 and Figure 9As shown, the locking mechanism includes a fixed housing 14 fixed to the first swing frame 4 on the side away from the fixed plate 6. The fixed housing 14 is rotatably connected to the hand crank 7. The fixed housing 14 is detachably connected to a cover plate 15. The hand crank 7 is fixedly connected to a ratchet 16 located inside the fixed housing 14. Several ratchet teeth 17 are rotatably connected inside the fixed housing 14. The ratchet teeth 17 are used to limit the ratchet 16 in one direction. A torsion spring is provided between the ratchet teeth 17 and the fixed housing 14. The fixed housing 14 has a sliding amount for the ratchet teeth 17. All the ratchet teeth 17 are slidably connected to the cover plate 15 and the fixed housing 14. All the ratchet teeth 17 are detachably connected to a rotating frame 18 located outside the fixed housing 14.

[0025] Working principle: When traction is required on a patient's legs (taking the legs as an example, but not limited to the legs; the actual length of the connecting rope 10 can be adjusted according to the actual traction area), medical personnel follow the instructions of this invention. Figure 3 The diagram illustrates the preparatory work for traction of the patient's leg. Once the preparation work is completed, the traction force is generated on the connecting rope 10 by the counterweight 5 and the angle limitation of the first swing frame 4. The connecting rope 10 transmits the traction force to the patient's leg through the bolt frame 11 to achieve traction of the patient's leg.

[0026] The required traction direction for the same patient at different stages of rehabilitation varies depending on whether the fracture is in its early or late stages. For example, axial traction is needed in the early stages to maintain alignment, while the traction direction needs to be changed in the later stages to promote joint mobility recovery. However, existing methods for adjusting the traction direction only involve elevating the patient's feet. In this situation, patient movement, muscle contraction, or breathing movements will cause changes in leg position, altering the support angle of the pad and causing the traction direction to deviate from the preset value, requiring frequent readjustment. Therefore, this invention solves the above problem by adjusting the swing angle of the second swing frame 8. The specific process is as follows: When it is necessary to adjust the patient's traction direction, the medical staff pulls the spring pin 13 upward, causing the spring pin 13 to disengage from the adjacent through hole on the second swing frame 8. Then, the medical staff swings the second swing frame 8 upward. When the swing angle of the second swing frame 8 meets the required angle, the medical staff releases the spring pin 13, which then inserts into the adjacent through hole on the second swing frame 8 to limit the second swing frame 8. By increasing the swing angle of the second swing frame 8, the traction direction on the patient's leg is changed, thereby adapting to the patient's later rehabilitation. Since the traction direction is determined by the swing angle of the second swing frame 8, it is not affected by the displacement of the padding under the patient's feet or changes in the patient's body position. Therefore, the traction direction is stable and does not require frequent readjustment.

[0027] When it is necessary to increase the counterweight, medical staff should turn the hand crank 7 clockwise (to...). Figure 5(The time is rotated clockwise from front to back). The hand crank 7 drives the ratchet 16 to rotate synchronously. During the rotation of the ratchet 16, all the ratchet teeth 17 are squeezed. After being squeezed, the ratchet teeth 17 rotate along the fixed shell 14 and cause the adjacent torsion springs to store force (the ratchet teeth 17 rotate synchronously along the rotating frame 18 during the rotation). Then, the ratchet teeth 17 are continuously reset by the torsion springs. At the same time as the hand crank 7 rotates, the connecting rope 10 is put away, shortening the overall length of the connecting rope 10. The first swing frame 4 swings to the upper left side along the connecting frame 3 under the effect of the shortened length of the connecting rope 10, thereby increasing the swing angle of the first swing frame 4, thereby increasing the torque of the counterweight 5 on the fulcrum, and then increasing the tension of the connecting rope 10 through torque balance, and finally increasing the traction force on the patient's leg without increasing the counterweight.

[0028] After the counterweight adjustment is completed, the medical staff stop turning the hand crank 7. At this time, all the ratchet teeth 17 lock the ratchet 16 in one direction to fix the swing angle of the first swing frame 4. When it is necessary to reduce the traction force, the medical staff pull the rotating frame 18 away from the hand crank 7. The rotating frame 18 drives all the ratchet teeth 17 to move forward (during the movement of the ratchet teeth 17, they slide along the cover plate 15 and stretch the adjacent torsion springs). When all the ratchet teeth 17 are no longer in contact with the ratchet 16, the ratchet 16 is released from its limit. The first swing frame 4 swings slowly downward under the action of gravity (human assistance can be used). At this time, the connecting rope 10 on the hand crank 7 is released. When the first swing frame 4 swings to fit with the connecting frame 3, the first swing frame 4 is in a vertical state. At this time, the medical staff release the rotating frame 18. All the ratchet teeth 17 reset under the action of their respective torsion springs. During the reset process of all the ratchet teeth 17, the rotating frame 18 moves synchronously to reset.

[0029] When using existing traction devices to pull a patient's legs, a counterweight pulls the leg via a connecting rope. This rope is taut, and the weight of the counterweight not only acts on the patient's leg but also causes the patient's entire body to tend to be dragged towards the counterweight. This is especially true when the patient is supine or sitting, as the patient's position is mainly maintained by friction between their body and the bed or support surface. With greater traction force, the patient's body is prone to sliding towards the counterweight. This sliding causes a shift in the patient's position, altering the traction angle and direction of the traction force, thus affecting the accuracy and effectiveness of the traction treatment. This may cause discomfort to the patient or even secondary injury, which is not conducive to the smooth progress of rehabilitation care. To address this, the present invention sets up a support plate that can be raised on the patient's buttocks. The raised buttock support plate forms an inclined blocking surface on the tail side of the patient's pelvis, abutting against the pelvis and providing reverse support in the direction of the head of the bed, thereby inhibiting the patient's body from sliding and keeping the patient's position stable. When the patient feels severe pain or obvious discomfort, he / she can actively move his / her buttocks and trigger the mechanical linkage mechanism to quickly disconnect the counterweight from the patient's legs without waiting for medical staff to arrive. The working process to achieve this effect is as follows.

[0030] Example 2

[0031] Based on Example 1, such as Figure 7 , Figure 10 and Figure 11As shown, it also includes two connecting shells 19 symmetrically distributed on the second swing frame 8, which are slidably connected. Each connecting shell 19 is fixedly connected with a pressing tooth 20. A locking member 21 is rotatably connected to each connecting shell 19. When the two locking members 21 are in contact, the two connecting shells 19 are also in contact. The pressing tooth 20 is used to press the other locking member 21. An arc-shaped through hole is provided on the upper side of each connecting shell 19. The locking member 21 slides along the arc-shaped through hole on the upper side of the adjacent connecting shell 19. The locking member 21 is formed by a semi-circular block and a connecting plate. When the semi-circular blocks on the opposite sides of the two locking members 21 are in contact, they form a complete circle, used to lock the two connecting shells 19, keeping them connected. The center of the circle containing the arc-shaped through hole on the connecting shell 19 and the semi-circular blocks on the opposite sides of the two locking members 21 form a complete circle. When the two locking parts 21 are initially locked together, after the two locking parts 21 rotate 45°, the opposing sides of the two locking parts 21 are on the same vertical line as the adjacent sides of the two pressing teeth 20. The connecting rope 10 consists of a first rope 1001 and a second rope 1002. One end of the first rope 1001 is wrapped around the hand crank 7. The first rope 1001 is in contact with all the guide rollers 9 on the connecting frame 3 and the adjacent guide rollers 9 on the second swing frame 8. The other end of the first rope 1001 is detachably connected to the upper connecting shell 19. One end of the second rope 1002 is detachably connected to the lower connecting shell 19. The second rope 1002 is in contact with the other adjacent guide roller 9 on the second swing frame 8. The other end of the second rope 1002 is detachably connected to the bolt frame 11.

[0032] like Figure 11 As shown, the connecting shell 19 is fixedly connected to a second fixing block 22, and the second fixing block 22 is slidably connected to an arc-shaped rod 23 fixedly connected to an adjacent locking member 21. The center of the circle where the two arc-shaped rods 23 are located coincides with the center of the circle formed by the semi-circular blocks on the opposite side of the two locking members 21. A spring is wound around the arc-shaped rod 23 and contacts the adjacent second fixing block 22.

[0033] like Figure 2 and Figures 12-14As shown, the telescopic part of the self-locking telescopic frame 2 is detachably connected to a pad 24. The pad 24 is hinged to a swing plate 25. An anti-slip pad 26 is fixed to the upper right side of the swing plate 25. The pad 24 is provided with a lifting member 27 that contacts the swing plate 25. The lifting member 27 is used to increase the swing amplitude of the swing plate 25. The tilted swing plate 25 blocks the patient's buttocks and inhibits the patient's body from sliding. The lifting member 27 consists of a threaded rod, a fixed hinge block on the right side, a sliding hinge block on the left side, a U-shaped plate, a connecting plate, and two hinge plates (in the initial state, the two hinge plates are tilted upwards). The device consists of a fixed hinge block fixed to a pad 24, a sliding hinge block slidably connected to the pad 24, and two hinge plates hinged to each other on opposite sides. The two hinge plates are hinged to a connecting plate, which is hinged to a U-shaped plate. The U-shaped plate is used to push the swing plate 25. The sliding hinge block is threadedly connected to a threaded rod, and the fixed hinge block is rotatably connected to the threaded rod. By rotating the threaded rod, the sliding hinge block moves toward the fixed hinge block, thereby causing the two hinge plates to be compressed and lifting the connecting plate and the U-shaped plate upwards. The connecting plate and the U-shaped plate then lift the pad 24 upwards.

[0034] like Figure 2 , Figure 7 , Figure 10 and Figures 12-14 A sliding plate 28 is slidably connected to the upper left side of the pad 24. An elastic element 29, in contact with the sliding plate 28, is detachably connected to the swing plate 25. A wire sleeve 30 is fixedly connected to the swing plate 25 and its lower side. A wire core 31 is slidably connected inside the wire sleeve 30. One side of the wire core 31 is fixedly connected to the sliding plate 28, and the other side is detachably connected to a locking element 21 near the bolt bracket 11. The elastic element 29 is an existing elastic plate. When the patient slides to contact the sliding plate 28, the patient causes the sliding plate 28 to slide synchronously, thereby pulling the locking element 21 connected to it through the wire core 31. Stop 21 drives another locking part 21 to rotate synchronously, so as to release the limit of the two connecting shells 19 and separate the two connecting shells 19, so as to achieve the effect of emergency disconnection of the patient's leg from the counterweight 5. The swing plate 25 is fixed with a shielding cloth 32 for shielding the sliding plate 28 and the elastic part 29. The second swing frame 8 is detachably connected with a spring telescopic rod 801 that contacts the adjacent connecting shell 19. The spring telescopic rod 801 is used to buffer the movement of the adjacent connecting shell 19. The fixed part of the spring telescopic rod 801 is detachably installed on the upper side of the second swing frame 8 through a T-shaped block.

[0035] Working principle: Before traction of the patient's legs, medical staff first fix the self-locking telescopic frame 2 and the pad 24 to the nursing bed 1. The swing angle between the pad 24 and the swing plate 25 is adjusted by the lifting component 27 so that the tilt of the swing plate 25 can both inhibit the sliding of the patient's body and make the patient's body comfortable. The tilt support of the swing plate 25 on the patient's buttocks and the contact between the anti-slip pad 26 and the patient's buttocks inhibit the sliding tendency of the patient's body.

[0036] When the patient experiences severe pain or significant discomfort, actively control the hips to slide upwards and to the left (towards...). Figure 1 (Taking the patient's perspective as an example), when the patient's buttocks slide to contact the sliding plate 28, the contact between the patient's buttocks and the sliding plate 28 and the covering cloth 32 causes the covering cloth 32 to deform and simultaneously drive the sliding plate 28 to move synchronously and pull the wire core 31 (the sliding plate 28 squeezes the elastic element 29 during the movement). After the wire core 31 is pulled, it pulls the locking element 21 on the right side. The locking element 21 drives another locking element 21 to rotate along the two squeezing teeth 20. During the rotation of the locking element 21, it drives the adjacent arc rod 23 to slide along the adjacent second fixed block 22 and squeeze the adjacent elastic spring.

[0037] After the two locking parts 21 rotate 45°, they no longer lock the two connecting shells 19. The upper connecting shell 19 moves upward under the drag of the first swing frame 4 and the counterweight 5 and squeezes the spring telescopic rod 801. The telescopic part of the spring telescopic rod 801 is squeezed to buffer the swing of the first swing frame 4 and the counterweight 5 and prevent the parts from colliding. When the upper connecting shell 19 moves upward along the second swing frame 8 to the limit position, it prevents the first swing frame 4 and the counterweight 5 from continuing to swing. After the two connecting shells 19 separate, they no longer exert traction on the patient's legs. By using the patient's active movement, the two connecting shells 19 are separated (after the two connecting shells 19 separate, the two locking parts 21 are reset under the action of the spring spring). This allows the patient to lose traction on their legs without waiting for medical staff to arrive, thus achieving the effect of emergency protection.

[0038] When medical staff arrive, they observe the patient's physical condition. When the patient's condition allows for continued leg traction, the medical staff swing the first swing frame 4 and the counterweight 5 upwards and pull the upper connecting shell 19 downwards. When the upper connecting shell 19 moves to contact the lower connecting shell 19, the two pressing teeth 20 press against the two different locking members 21, causing the locking members 21 to rotate repeatedly. When the two connecting shells 19 come into contact, the two locking members 21 reset and lock, thus continuing leg traction.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional traction device for orthopedic rehabilitation and nursing, characterized in that, It includes a self-locking telescopic frame (2), which is detachably connected to a connecting frame (3). A first swing frame (4) is rotatably connected to one side of the connecting frame (3). A counterweight (5) is detachably connected to the first swing frame (4). A fixed plate (6) is fixedly connected to the first swing frame (4). A hand crank (7) is rotatably connected to the fixed plate (6). A second swing frame (8) is rotatably connected to the other side of the connecting frame (3). Both the connecting frame (3) and the second swing frame (8) are rotatably connected to several guide rollers (9). The hand crank... The rod (7) is fixedly connected to a connecting rope (10) that contacts the guide rollers (9) on the connecting frame (3) and the second swing frame (8). The connecting rope (10) has a reserved portion on the hand crank (7). The end of the connecting rope (10) away from the hand crank (7) is detachably connected to a bolt frame (11). A locking mechanism is provided on the upper side of the connecting frame (3). The locking mechanism is used to fix the second swing frame (8). A locking mechanism is provided on the first swing frame (4). The locking mechanism is used to fix the hand crank (7).

2. The multifunctional traction device for orthopedic rehabilitation and nursing according to claim 1, characterized in that, The first swing frame (4) is detachably connected to a guide (401), which is used to guide the connecting rope (10).

3. The multifunctional traction device for orthopedic rehabilitation and nursing according to claim 1, characterized in that, The locking mechanism includes a first fixing block (12) detachably connected to the connecting frame (3), the first fixing block (12) is provided with a spring pin (13), the second swing frame (8) is provided with a plurality of through holes, and the spring pin (13) is used to insert into one of the through holes on the second swing frame (8).

4. The multifunctional traction device for orthopedic rehabilitation and nursing according to claim 1, characterized in that, The locking mechanism includes a fixed housing (14) fixed to the first swing frame (4) on the side away from the fixed plate (6). The fixed housing (14) is rotatably connected to the hand crank (7). The fixed housing (14) is detachably connected to a cover plate (15). The hand crank (7) is fixedly connected to a ratchet (16) located inside the fixed housing (14). Several ratchet teeth (17) are rotatably connected inside the fixed housing (14). The several ratchet teeth (17) are used to limit the ratchet (16) in one direction. A torsion spring is provided between the ratchet teeth (17) and the fixed housing (14).

5. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 4, characterized in that, The fixed shell (14) has a sliding amount of the ratchet (17), all of the ratchet (17) are slidably connected to the cover plate (15) and the fixed shell (14), and all of the ratchet (17) are detachably connected to a rotating frame (18) located outside the fixed shell (14).

6. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 1, characterized in that, It also includes two connecting shells (19) that are slidably connected to the second swing frame (8) and are symmetrically distributed at the center. Each of the two connecting shells (19) is fixed with a pressing tooth (20). The connecting shells (19) are rotatably connected with a locking member (21). When the two locking members (21) are in contact, the two connecting shells (19) are in contact. The pressing tooth (20) is used to press the other locking member (21). The connecting rope (10) is composed of a first rope (1001) and a second rope (1002). One end of the first rope (1001) is wound around the hand crank (7). The first rope (1001) contacts all the guide rollers (9) on the connecting frame (3) and the adjacent guide rollers (9) on the second swing frame (8). The other end of the first rope (1001) is detachably connected to the upper connecting shell (19). One end of the second rope (1002) is detachably connected to the lower connecting shell (19). The second rope (1002) contacts another adjacent guide roller (9) on the second swing frame (8). The other end of the second rope (1002) is detachably connected to the bolt frame (11).

7. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 6, characterized in that, The connecting shell (19) is fixedly connected to a second fixing block (22), and the second fixing block (22) is slidably connected to an arc-shaped rod (23) fixedly connected to the adjacent locking member (21). The arc-shaped rod (23) is wound with a spring that contacts the adjacent second fixing block (22).

8. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 6, characterized in that, The telescopic part of the self-locking telescopic frame (2) is detachably connected to a pad (24), and the pad (24) is hinged to a swing plate (25). The side of the swing plate (25) away from the self-locking telescopic frame (2) is fixed with an anti-slip pad (26). The pad (24) is provided with a lifting member (27) that contacts the swing plate (25). The lifting member (27) is used to increase the swing amplitude of the swing plate (25).

9. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 8, characterized in that, The pad (24) is slidably connected to a sliding plate (28) on the side away from the hinged part of the swing plate (25). The swing plate (25) is detachably connected to an elastic element (29) that contacts the sliding plate (28). The swing plate (25) and the connecting shell (19) on the lower side are jointly fixed to a wire sleeve (30). A wire core (31) is slidably connected inside the wire sleeve (30). One side of the wire core (31) is fixed to the sliding plate (28), and the other side of the wire core (31) is detachably connected to the locking element (21) near the bolt bracket (11).

10. A multifunctional traction device for orthopedic rehabilitation and nursing according to claim 9, characterized in that, The swing plate (25) is fixed with a shielding cloth (32) for shielding the sliding plate (28) and the elastic element (29), and the second swing frame (8) is detachably connected with a spring telescopic rod (801) that contacts the adjacent connecting shell (19).

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