Numerical Control Type Traction Device for Orthopedic Rehabilitation

Abstract

The present invention discloses a numerically controlled traction device for orthopedic rehabilitation, including a main body. One end of the main body is movably connected with a flip traction arm, and an adjustment ring is slidably connected inside the flip traction arm. At the top and bottom inside the adjustment ring, movable adjustment plates are movably connected. At the central positions on the outer sides of the two groups of movable adjustment plates, movable universal balls extending into the adjustment ring are fixed. When it is necessary to adjust the orientation of the palm center in the present invention, under the action of the driving gear ring, the driving connecting rod is driven to rotate annularly along the adjustment ring. Since a fixed universal ball located inside the movable universal ball is fixed at the middle position of the driving connecting rod, the two groups of movable adjustment plates and the two groups of binding pieces are integrally adjusted in angle, and then the orientation of the palm center is adjusted by the forearm, which is more conducive to the rehabilitation training of the elbow joint at different angles, solves the problem that medical staff need to frequently adjust the binding straps, and has a better overall rehabilitation training effect and is more convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation devices, and specifically to a numerically controlled traction device for orthopedic rehabilitation. Background Art

[0002] The traction device for orthopedic rehabilitation is an important device widely used in the field of orthopedic rehabilitation, mainly used for the reduction and rehabilitation after fractures and joint dislocations, as well as the treatment and recovery of some spinal diseases. Among them, the orthopedic rehabilitation traction device includes a cervical traction device, a lumbar traction device, and a limb traction device, and the limb traction device includes an upper limb traction device and a lower limb traction device.

[0003] Among them, the upper limb traction device is mainly used for the reduction and rehabilitation after upper limb fractures and dislocations, as well as the treatment of some upper limb joint diseases. It applies traction force to each joint of the upper limb (such as the shoulder joint, elbow joint, and wrist joint) to correct joint deformities, restore the normal anatomical position of the joint, and at the same time promote fracture healing and joint function recovery. When the upper limb traction device is in use, it mainly binds the patient's forearm through straps. The original intention of this design is to use the forearm as a fulcrum to drive the elbow joint to move by pulling the forearm, so as to achieve the rehabilitation training of the elbow joint.

[0004] During the rehabilitation training of the elbow joint, the orientation of the palm is a key factor, which directly affects the movement mode and rehabilitation training angle of the elbow joint. Different palm orientations will cause the elbow joint to move in different planes and axes, and the existing device must re-bind the straps, which not only requires patients or medical staff to spend a lot of time and energy, but also may affect the patient's training experience and rehabilitation process during the frequent adjustment of the straps. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a numerically controlled traction device for orthopedic rehabilitation to solve the technical problem that in the rehabilitation training with different palm operations in the prior art, medical staff need to frequently adjust the straps, resulting in relatively troublesome overall operations.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A numerically controlled traction device for orthopedic rehabilitation, including a main body, one end of the main body is movably connected with a flipping traction arm, and an adjusting ring is slidably connected inside the flipping traction arm;

[0007] Sliders extending into the inside of the flipping traction arm are fixed to the top and bottom of the adjusting ring. Movable adjusting plates are movably connected to the top end and the bottom end inside the adjusting ring. Binding pieces are arranged on the inner sides of the two movable adjusting plates. Movable universal balls extending into the inside of the adjusting ring are fixed to the central positions on the outer sides of the two movable adjusting plates, and annular ball grooves matching with the two movable universal balls are formed inside the adjusting ring;

[0008] Both ends inside the adjusting ring are rotatably connected with driving gear rings. Both ends of the adjusting ring are fixed with matching limiting rings that cooperate with the driving gear rings. An annular groove matching the annular ball groove is provided inside the matching limiting ring. At the top and bottom between the two groups of driving gear rings, driving connecting rods passing through the movable universal balls are fixed. A fixed universal ball extending into the movable universal ball is fixed at the middle position on the outer side of the driving connecting rod. A matching cavity cooperating with the fixed universal ball is provided inside the movable universal ball. Through holes with diameters larger than the diameter of the driving connecting rod are provided at both ends of the movable universal ball;

[0009] A double-shaft motor is installed at the middle position on one side inside the adjusting ring. Driving gears meshing with the two groups of driving gear rings are fixed at the output ends of both ends of the double-shaft motor. A connecting frame is fixed inside the flipping traction arm. The connecting frame and the double-shaft motor are electrically connected to each other through a spiral wire. The end of the spiral wire is connected with a power cord passing through the connecting frame and extending into the main body;

[0010] A bundling mechanism is arranged at the top of the flipping traction arm. The bundling mechanism includes a connecting plate. The bottom of the connecting plate is fixedly connected with one of the sliders. The bundling mechanism further includes a winding rod and a tightening belt. Two groups of winding rods are rotatably connected inside the connecting plate. The tightening belt is fixed on both sides of the winding rod and sequentially passes through the two groups of movable adjusting plates and the two groups of bundling pieces;

[0011] The bundling mechanism further includes a transmission gear, a worm gear, a worm, and a first handwheel. The transmission gears are respectively fixed on the outer sides of the two groups of winding rods and mesh with each other. The worm gear is fixed on the outer side of one of the winding rods. A housing is arranged outside the bundling mechanism. A worm meshing with the worm gear is rotatably connected inside the housing. The first handwheel is fixed on the top of the worm;

[0012] An adjusting mechanism is arranged at a corner of the flipping traction arm. The adjusting mechanism includes a lead screw, a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a second handwheel. The lead screw passes through the two groups of sliders. The two groups of first synchronous pulleys are respectively fixed on one side of the two groups of lead screws. A housing is arranged outside the adjusting mechanism. The second synchronous pulley is rotatably connected with the housing. The second synchronous pulley and the two groups of first synchronous pulleys are connected by a synchronous belt for transmission. The second handwheel is fixed on one side of the second synchronous pulley.

[0013] By adopting the above technical solution, the whole of the present invention is fixed to one side of a hospital bed or a seat through a splint mechanism. Then, the patient's forearm is placed between two sets of binding pieces. Then, the first handwheel of the binding mechanism is rotated, so that the two sets of tightening belts drive the two sets of binding pieces to tighten and bind the patient's forearm. Then, the forearm is driven to reciprocally flip by the flipping traction arm, and thus rehabilitation training for the elbow joint can be carried out. When it is necessary to adjust the orientation of the palm, at this time, under the action of the driving gear ring, the driving connecting rod is driven to rotate annularly along the adjusting ring. At this time, since a fixed universal ball located inside the movable universal ball is fixed at the middle position of the driving connecting rod, the two sets of movable adjusting plates and the two sets of binding pieces are integrally adjusted in angle. Furthermore, the orientation of the palm can be adjusted by driving the forearm, and the rehabilitation training process for the elbow joint at different angles can be better carried out. At the same time, the problem that medical staff need to frequently adjust the binding straps is avoided. The overall rehabilitation training effect is good and the operation is relatively convenient.

[0014] Further, a splint mechanism is fixed to one side of the main body. A connecting head connected to an external power supply device is fixed to one end of the main body, and a control board module is fixed to the top of the main body.

[0015] By adopting the above technical solution, the connecting head facilitates the overall power supply operation of the present invention, and the splint mechanism can clamp and fix the whole to one side of a hospital bed or a seat, and the use is relatively convenient.

[0016] In summary, the present invention mainly has the following beneficial effects:

[0017] 1. The whole of the present invention is fixed to one side of a hospital bed or a seat through a splint mechanism. Then, the patient's forearm is placed between two sets of binding pieces. Then, the first handwheel of the binding mechanism is rotated, so that the two sets of tightening belts drive the two sets of binding pieces to tighten and bind the patient's forearm. Then, the forearm is driven to reciprocally flip by the flipping traction arm, and thus rehabilitation training for the elbow joint can be carried out. When it is necessary to adjust the orientation of the palm, at this time, under the action of the driving gear ring, the driving connecting rod is driven to rotate annularly along the adjusting ring. At this time, since a fixed universal ball located inside the movable universal ball is fixed at the middle position of the driving connecting rod, the two sets of movable adjusting plates and the two sets of binding pieces are integrally adjusted in angle. Furthermore, the orientation of the palm can be adjusted by driving the forearm, and the rehabilitation training process for the elbow joint at different angles can be better carried out. At the same time, the problem that medical staff need to frequently adjust the binding straps is avoided. The overall rehabilitation training effect is good and the operation is relatively convenient;

[0018] 2. After the present invention fixes the forearm through two sets of binding pieces, since the two sets of movable adjusting plates and the adjusting rings are movably connected through fixed universal balls, when the forearm of the patient is fixed, the patient can actively make fine adjustments. At the same time, when used for patients in different lying or sitting postures, it can adapt to the placement state of the patient's forearm, effectively avoiding the discomfort caused by difficult fine adjustments in the prior art during rehabilitation training, and greatly improving the overall use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention from the first perspective;

[0020] Figure 2 is the enlarged internal structure diagram of the present invention;

[0021] Figure 3 is the enlarged partial structural sectional view of the present invention;

[0022] Figure 4 is the present invention Figure 3 enlarged view of part A;

[0023] Figure 5 is the enlarged partial sectional view of the present invention;

[0024] Figure 6 is the present invention Figure 5 enlarged view of part B;

[0025] Figure 7 is the enlarged structural diagram of the movable adjusting plate of the present invention;

[0026] Figure 8 is the enlarged partial structural diagram of the present invention;

[0027] Figure 9 is the enlarged structural diagram of the binding mechanism of the present invention;

[0028] Figure 10 is the enlarged structural diagram of the adjusting mechanism of the present invention;

[0029] Figure 11 is the overall structural schematic diagram of the present invention from the second perspective.

[0030] In the figure: 1. Main body; 2. Flipping traction arm; 3. Adjusting ring; 4. Slide block; 5. Binding mechanism; 501. Connecting plate; 502. Winding rod; 503. Transmission gear; 504. Tightening belt; 505. Worm gear; 506. Worm; 507. First handwheel; 6. Adjusting mechanism; 601. Lead screw; 602. First synchronous wheel; 603. Second synchronous wheel; 604. Timing belt; 605. Second handwheel; 7. Movable adjusting plate; 8. Movable universal ball; 9. Matching cavity; 10. Fixed universal ball; 11. Driving connecting rod; 12. Driving gear ring; 13. Matching limiting ring; 14. Biaxial motor; 15. Driving gear; 16. Binding piece; 17. Connecting frame; 18. Spiral wire; 19. Clamping plate mechanism; 20. Connector; 21. Control board module; 22. Annular ball groove. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] The following will describe the embodiments according to the overall structure of the present invention.

[0033] A numerically controlled orthopedic rehabilitation traction device, as Figures 1-11 shown, includes a main body 1. One end of the main body 1 is movably connected with a flipping traction arm 2, and an adjusting ring 3 is slidably connected inside the flipping traction arm 2;

[0034] Sliding blocks 4 extending into the interior of the flipping traction arm 2 are fixed to both the top and bottom of the adjusting ring 3. Movable adjusting plates 7 are movably connected to both the top end and the bottom end inside the adjusting ring 3. Binding pieces 16 are arranged on the inner sides of the two groups of movable adjusting plates 7. Movable universal balls 8 extending into the interior of the adjusting ring 3 are fixed to the central positions on the outer sides of the two groups of movable adjusting plates 7;

[0035] When it is necessary to adjust the orientation of the palm, at this time, under the action of the driving gear ring 12, the driving connecting rod 11 is driven to rotate annularly along the adjusting ring 3. At this time, since a fixed universal ball 10 located inside the movable universal ball 8 is fixed at the middle position of the driving connecting rod 11, the two groups of movable adjusting plates 7 and the two groups of binding pieces 16 are integrally adjusted in angle. Furthermore, the orientation of the palm can be adjusted by driving the forearm, which is more conducive to performing rehabilitation training on the elbow joint at different angles. At the same time, it solves the problem that medical staff need to frequently adjust the binding belt. The overall rehabilitation training effect is good and the operation is relatively convenient;

[0036] The adjusting ring 3 is internally provided with an annular ball groove 22 that cooperates with two sets of movable universal balls 8. At both ends inside the adjusting ring 3, there are driving gear rings 12 rotatably connected. At both ends of the adjusting ring 3, there are fixing limiting rings 13 that cooperate with the driving gear rings 12. And an annular groove that matches the annular ball groove 22 is provided inside the fixing limiting rings 13. Among them, the two sets of fixing limiting rings 13 not only play a role in end-face limiting of the driving gear rings 12, but also the annular grooves provided inside them correspond and cooperate with the annular ball groove 22, which can overall play a role in movably limiting the movable universal balls 8, facilitating the movement of the movable universal balls 8 inside it, and preventing the phenomenon of the movable universal balls 8 from falling off;

[0037] At the top and bottom between the two sets of driving gear rings 12, there are driving connecting rods 11 that penetrate the movable universal balls 8. And at the middle position on the outer side of the driving connecting rods 11, there are fixed universal balls 10 that extend into the inside of the movable universal balls 8. And a fitting cavity 9 that cooperates with the fixed universal balls 10 is provided inside the movable universal balls 8. And through holes with a diameter larger than that of the driving connecting rods 11 are provided at both ends of the movable universal balls 8. When the movable universal balls 8 perform universal fine adjustment relative to the adjusting ring 3, at this time, the movable universal balls 8 will not interfere with the driving connecting rods 11. At the same time, with the cooperation of the driving connecting rods 11 and the fixed universal balls 10, the movable universal balls 8 can be driven to perform annular adjustment of the palm orientation angle inside the annular ball groove 22 of the adjusting ring 3;

[0038] At the middle position on one side inside the adjusting ring 3, a double-shaft motor 14 is installed. And at both output ends of the double-shaft motor 14, there are driving gears 15 that mesh with the two sets of driving gear rings 12. Inside the flipping traction arm 2, there is a connecting frame 17 fixed. And the connecting frame 17 and the double-shaft motor 14 are electrically connected to each other through a spiral wire 18. The end of the spiral wire 18 is connected to a power cord that penetrates the connecting frame 17 and extends into the main body 1;

[0039] The bundling mechanism 5 further includes a winding rod 502 and a tightening belt 504. Inside the connecting plate 501, there are two sets of winding rods 502 rotatably connected. And on both sides of the winding rod 502, there are tightening belts 504 that sequentially penetrate the two sets of movable adjusting plates 7 and the two sets of bundling pieces 16;

[0040] The bundling mechanism 5 further includes a transmission gear 503, a worm gear 505, a worm 506, and a first handwheel 507. The transmission gears 503 are respectively fixed on the outer sides of the two sets of winding rods 502 and mesh with each other. And the worm gear 505 is fixed on the outer side of one of the winding rods 502. There is a housing provided outside the bundling mechanism 5. And inside the housing, there is a worm 506 rotatably connected that meshes with the worm gear 505. And the first handwheel 507 is fixed on the top of the worm 506;

[0041] An adjusting mechanism 6 is provided at one corner of the flip traction arm 2, and the adjusting mechanism 6 includes a screw rod 601, a first synchronous wheel 602, a second synchronous wheel 603, a synchronous belt 604 and a second hand wheel 605. The screw rod 601 passes through the two sets of sliders 4, and the two sets of first synchronous wheels 602 are respectively fixed on one side of the two sets of screw rods 601. A shell is provided on the outer side of the adjusting mechanism 6, and the second synchronous wheel 603 and the shell are rotatably connected. The second synchronous wheel 603 and the two sets of first synchronous wheels 602 are connected by a synchronous belt 604, and the second hand wheel 605 is fixed on one side of the second synchronous wheel 603.

[0042] The rotation of the second hand wheel 605 can drive the adjustment ring 3 to adjust the entirety under the cooperation of the screw rod 601 and the slider 4, so that the distance of the adjustment ring 3 relative to the bed can be adjusted, which is more convenient for the patient to use and has better applicability;

[0043] A binding mechanism 5 is arranged on the top of the flip traction arm 2, and the binding mechanism 5 includes a connecting plate 501, and the bottom of the connecting plate 501 is fixedly connected to one group of sliders 4. At the same time, since the binding mechanism 5 is fixed on the top of the slider 4, after the position of the adjusting ring 3 is adjusted, the binding mechanism 5 moves synchronously, which will not affect the problem of binding the patient's forearm after adjustment.

[0044] See also Figure 1 A clamping plate mechanism 19 is fixed on one side of the main body 1, a connector 20 connected to an external power supply device is fixed on one end of the main body 1, and a control board module 21 is fixed on the top of the main body 1. The present invention is provided with the above structure, wherein the connector 20 facilitates the power supply operation of the entire present invention, and the clamping plate mechanism 19 can clamp the entirety to one side of a bed or seat, which is more convenient to use.

[0045] The working principle of the present invention is as follows: when in use, the power is turned on, and the present invention is fixed as a whole on one side of a bed or a seat through the clamping plate mechanism 19, wherein the clamping plate mechanism 19 can adapt to the installation and use environment of the bed or the seat. Specifically, the clamping plate mechanism 19 uses a screw to drive the clamping plate to move, and clamps and fixes the external object, wherein the manual clamping or electric clamping method can be used. At the same time, a rubber strip is fixed on the inner side of the clamping plate, which improves the stability and firmness of the overall clamping;

[0046] Then the patient's forearm is placed between the two groups of binding plates 16, and then the first hand wheel 507 of the binding mechanism 5 is rotated, so that the two groups of tightening belts 504 drive the two groups of binding plates 16 to tighten and bind the patient's forearm;

[0047] Specifically, both ends of the tightening belt 504 are respectively wound by a group of winding rods 502. The two groups of winding rods 502 are meshed with each other through transmission gears 503 to realize synchronous reverse rotation operations, so that the tightening belt 504 can drive the binding piece 16 to tighten and bind the forearm.

[0048] At the same time, a worm gear 505 is fixed outside one group of winding rods 502. The worm gear 505 and the worm 506 are meshed with each other. The medical staff rotates the first handwheel 507 to drive the worm 506 to rotate, and then can drive the worm gear 505 to rotate. The meshing between the worm gear 505 and the worm 506 is more stable, and there is a self-locking function between them. Therefore, after the tightening belt 504 is tightened, the tightening belt 504 will not loosen, and thus can better bind and tighten the patient's forearm.

[0049] Then, the forearm is reciprocally flipped by rotating the traction arm 2, so that the elbow joint can be rehabilitated. When the orientation of the palm needs to be adjusted, under the action of the driving gear ring 12, the driving connecting rod 11 is driven to rotate annularly along the adjusting ring 3. At this time, since the fixed universal ball 10 located inside the movable universal ball 8 is fixed at the middle position of the driving connecting rod 11, the two groups of movable adjusting plates 7 and the two groups of binding pieces 16 are integrally adjusted in angle. Thus, the orientation of the palm can be adjusted by driving the forearm, and different angles of rehabilitation training for the elbow joint can be better performed. At the same time, there is no need for the medical staff to frequently adjust the binding belt, and the overall rehabilitation training effect is good and the operation is relatively convenient.

[0050] A flipping driving mechanism is arranged inside the main body 1, and the flipping driving mechanism can drive the flipping traction arm 2 to perform reciprocating flipping operations. Specifically, the flipping driving mechanism can adopt the drive of a motor to realize the reciprocating flipping operations of the flipping traction arm 2.

[0051] Specifically, the two groups of movable adjusting plates 7 can be adjusted in angle by 0-180 degrees relative to the adjusting ring 3 towards the patient's side. That is to say, the adjustment range of the palm orientation is from the palm facing upwards to the palm facing downwards. Different palm orientations can enable the elbow joint to move on different planes and axes, thus realizing diversified rehabilitation training angles to meet the needs of the comprehensive recovery of the elbow joint function.

[0052] That is to say, precisely controlling the adjustment of the training angle with different palm orientations can more effectively stimulate the recovery of the muscles, ligaments and joint tissues around the elbow joint. Training at different angles can promote the balanced development of muscle strength, increase the range of motion and flexibility of the joint, and improve the stability and coordination of the elbow joint.

[0053] Furthermore, after the forearms are fixed by two sets of binding pieces 16, at this time, since the two sets of movable adjusting plates 7 and the adjusting ring 3 are movably connected by the fixed universal balls 10, when the forearms of the patient are fixed, the patient can actively fine-tune. At the same time, when used for patients in different lying or sitting postures, it can adapt to the placement state of the patient's forearms, effectively avoiding the discomfort caused by difficult fine-tuning in the prior art during rehabilitation training, and greatly improving the overall use effect;

[0054] Furthermore, since the fixed universal ball 10 is internally provided with a fitting cavity 9 that cooperates with the movable universal ball 8, and at the same time, through holes with a diameter larger than the diameter of the driving connecting rod 11 are provided on both sides of the fixed universal ball 10, when the movable universal ball 8 performs universal fine-tuning relative to the adjusting ring 3, the movable universal ball 8 will not interfere with the driving connecting rod 11 at this time. At the same time, under the cooperation of the driving connecting rod 11 and the fixed universal ball 10, the movable universal ball 8 can be driven to adjust the angle of the palm orientation in a circular motion inside the circular ball groove 22 of the adjusting ring 3.

[0055] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A numerically controlled traction device for orthopedic rehabilitation, comprising a main body (1), characterized in that: One end of the main body (1) is movably connected with a flipping traction arm (2), and an adjusting ring (3) is slidably connected inside the flipping traction arm (2); Sliders (4) extending into the flipping traction arm (2) are fixed to both the top and bottom of the adjusting ring (3). At both the top and bottom ends inside the adjusting ring (3), movable adjusting plates (7) are movably connected. Binding pieces (16) are arranged on the inner sides of the two groups of movable adjusting plates (7). At the central positions on the outer sides of the two groups of movable adjusting plates (7), movable universal balls (8) extending into the adjusting ring (3) are fixed. An annular ball groove (22) matching the two groups of movable universal balls (8) is formed inside the adjusting ring (3); At both ends inside the adjusting ring (3), driving gear rings (12) are rotatably connected. At both ends of the adjusting ring (3), matching limit rings (13) matching the driving gear rings (12) are fixed. An annular groove matching the annular ball groove (22) is formed inside the matching limit ring (13). At the top and bottom between the two groups of driving gear rings (12), driving connecting rods (11) penetrating through the movable universal balls (8) are fixed. At the middle position on the outer side of the driving connecting rod (11), fixed universal balls (10) extending into the movable universal balls (8) are fixed. A matching cavity (9) matching the fixed universal balls (10) is formed inside the movable universal balls (8). Through holes with diameters larger than that of the driving connecting rod (11) are formed at both ends of the movable universal balls (8); A binding mechanism (5) is arranged on the top of the flipping traction arm (2). The binding mechanism (5) includes a connecting plate (501). The bottom of the connecting plate (501) is fixedly connected with one of the sliders (4). The binding mechanism (5) further includes a winding rod (502) and a tightening belt (504). Two winding rods (502) are rotatably connected inside the connecting plate (501). Tightening belts (504) sequentially penetrating through the two groups of movable adjusting plates (7) and the two groups of binding pieces (16) are fixed on both sides of the winding rod (502); A double-shaft motor (14) is installed at the middle position on one side inside the adjusting ring (3). Driving gears (15) meshing with the two groups of driving gear rings (12) are fixed to the output ends of both ends of the double-shaft motor (14).

2. The traction device for orthopedic rehabilitation of the numerical control type according to claim 1, wherein: The binding mechanism (5) further includes a transmission gear (503), a worm gear (505), a worm (506), and a first handwheel (507). The transmission gears (503) are respectively fixed on the outer sides of the two groups of winding rods (502) and mesh with each other. The worm gear (505) is fixed on the outer side of one of the winding rods (502).

3. The traction device for orthopedic rehabilitation of the numerical control type according to claim 2, characterized in that: A housing is arranged on the outer side of the binding mechanism (5). A worm (506) meshing with the worm gear (505) is rotatably connected inside the housing. The first handwheel (507) is fixed to the top of the worm (506).

4. The traction device for orthopedic rehabilitation of the numerical control type according to claim 3, characterized in that: A connecting frame (17) is fixedly installed inside the flipping traction arm (2), and the connecting frame (17) and the dual-axis motor (14) are electrically connected to each other through a spiral wire (18). The end of the spiral wire (18) is connected to a power cord that penetrates the connecting frame (17) and extends into the main body (1).

5. The traction device for orthopedic rehabilitation of the numerical control type according to claim 1, characterized in that: An adjusting mechanism (6) is arranged at a corner of the flipping traction arm (2). The adjusting mechanism (6) includes a lead screw (601), a first synchronous pulley (602), a second synchronous pulley (603), a synchronous belt (604), and a second handwheel (605). The lead screw (601) penetrates through two sets of sliders (4), and two sets of first synchronous pulleys (602) are respectively fixed to one side of the two lead screws (601).

6. The traction device for orthopedic rehabilitation of the numerical control type according to claim 5, characterized in that: A housing is arranged outside the adjusting mechanism (6), and the second synchronous pulley (603) is rotatably connected to the housing. The second synchronous pulley (603) is drivingly connected to the two sets of first synchronous pulleys (602) through the synchronous belt (604), and the second handwheel (605) is fixed to one side of the second synchronous pulley (603).

7. The traction device for orthopedic rehabilitation of the numerical control type according to claim 1, wherein: A clamping plate mechanism (19) is fixed to one side of the main body (1). A connector (20) connected to an external power supply device is fixed to one end of the main body (1), and a control board module (21) is fixed to the top of the main body (1).

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