A limb traction and stretching device for traditional Chinese orthopedics

Abstract

The present invention relates to the technical field of medical devices, and more specifically discloses a limb traction and stretching device for traditional Chinese medicine orthopedics, which includes a traction bed body. The traction bed body includes a bed body main body, and a first bed board, a second bed board and a third bed board are installed on the top of the bed body main body. The first bed board and the second bed board are installed on the sliding groove through a sliding plate. Two leg main frames are installed on the side of the traction bed body, and a rotating bracket is installed on the top of the leg main frames; by providing the leg main frames and the rotating bracket, the present invention is beneficial to rotating the rotating frame according to the stretching position and angle of the patient. The rotating frame drives the connection component to rotate, and relative movement occurs between the leg main frames and the control component, and the width between the two leg main frames is continuously increased, so as to realize the synchronous adjustment of the fixed position and the stretching position by using the change of the patient's foot position, realize the traction and stretching with high accuracy while realizing the change of the traction position, and improve the comfort of the patient at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a limb traction and stretching device for traditional Chinese medicine orthopedics. Background Art

[0002] Orthopedics mainly studies and treats diseases such as fracture injuries, fracture healing, bone and joint injuries and emergency treatment, lower limb injuries, cervical spine injuries, etc. During the postoperative rehabilitation period of orthopedics, it is often necessary to use a traction and stretching device to traction or stretch the patient's limb, so that the patient can passively move the injured part, or perform movement training on the joints of the non-injured part, prevent blood clots from forming, and contribute to rehabilitation.

[0003] Chinese invention patent with publication number CN111956382A discloses an orthopedic traction bed. A flip bed board that can be turned upwards is hinged at the rear side of the fixed bed board. A closing board that can be moved to the rear side inside the bed body is installed in the key-shaped groove. A limiting column that can move to the inner side of the key-shaped groove along with the movement of the closing board is installed at the front side inside the bed body. The left and right sides of the fixing board are respectively hinged with guard boards that can be turned upwards along with the movement of the closing board. Folding traction frames are respectively installed inside the two guard boards; when this device is in use, it can block the patient by pressing against the perineum of the patient to limit the patient's body and prevent the patient's body from shifting when the limb of the patient is being tractioned; while the closing board moves backward, the guard boards on both sides will turn upwards to the vertical state along with it, and the traction frames inside the guard boards can be unfolded and assembled according to the needs of the user, which is convenient for the user to install the device for tractioning the patient's limb.

[0004] It can be seen that the current traction devices for orthopedics usually adopt a linear installation and stretching method, which makes it impossible to perform angle-adjusted stretching according to the specific disease situation when used by some patients who need to adjust the angle, such as those with spinal curvature. In addition, the existing traction devices are usually single-direction and single-stretching structures, which makes it so that when the patient is being stretched, usually only half of the body can be uniformly fixed on a single fixing frame, which makes the stretching force of different parts exactly the same, and it is impossible to adjust the stretching force of different parts differently, and it does not have high practicability. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a limb traction and stretching device for traditional Chinese medicine orthopedics to solve the problems existing in the above-mentioned background art.

[0006] The present invention provides the following technical solution: A limb traction and stretching device for traditional Chinese medicine orthopedics, including a traction bed body, the traction bed body includes a bed body main body, a first bed board, a second bed board and a third bed board are installed on the top of the bed body main body, the first bed board and the second bed board are installed on the sliding groove through a sliding plate, two leg main frames are installed on the side of the traction bed body, a rotating bracket is installed on the top of the leg main frame, a moving hole is opened on the side of the traction bed body, a control component is installed inside the moving hole, a first stretching frame is installed on the other side of the bed body main body, the first stretching frame includes a first fixing frame and a transverse connecting frame, the bottom of the transverse connecting frame is installed on the locking frame, a telescopic knob is installed on the outside of the transverse connecting frame, and the height of the first fixing frame is adjusted by rotating the telescopic knob; the third bed board is composed of a headrest and a telescopic rod;

[0007] The control component includes a first sliding plate and a second screw rod, the side of the first sliding plate is installed inside the second screw rod, a first threaded hole is opened on the right side of the first sliding plate, a transmission rod is installed inside the first threaded hole, auxiliary tooth plates are opened on both sides of the first sliding plate where the first threaded hole is located, the auxiliary tooth plates are meshed and connected with the first gear, a threaded groove is opened at one end of the second screw rod, a first belt pulley is installed at the other end, and the first belt pulley is connected with the transmission rod through a belt.

[0008] Furthermore, the leg main frame includes a leg moving plate, a rotating circular groove and a positioning hole are opened inside the leg moving plate, a connecting component is installed inside the positioning hole, a rotating bracket is installed inside the rotating circular groove, the rotating bracket includes a rotating frame, an upper cover plate is fixedly connected to the top of the rotating frame, a leg rod is fixedly connected to the upper cover plate through a bolt, a fixing frame is installed on the side of the leg rod, and the fixing frame fixes the stretching point strap at the second position.

[0009] Furthermore, the second stretching frame includes a stretching moving plate, a threaded plate is fixedly connected to the bottom of the stretching moving plate, a threaded hole is opened inside the threaded plate, one end of the transmission rod is installed inside the threaded hole, a plurality of connecting grooves are opened on the top of the stretching moving plate, and both ends of the strap component are installed inside the connecting grooves.

[0010] Furthermore, the strap component includes a traction strap, both ends of the traction strap are fixedly connected with strap buckles, an interval groove is opened on the front of the strap buckles, a plurality of first card slots are opened at the bottom of the interval groove, a lifting block is installed at the bottom of the connecting groove, a connecting control rod is installed on the side inside the connecting groove, the connecting control rod is composed of a pressing block and a locking block, the locking block is installed on the front of the interval groove, a plurality of second card slots are opened on the locking block, a return spring is sleeved outside the pressing block, the strap component and the second stretching frame form a first traction component, and the first traction position of the patient is fixed on the second stretching frame through the strap component, and the traction and stretching of the first position of the patient are realized by the movement of the second stretching frame.

[0011] Further, the connecting component includes a connecting shaft, and a second pulley and a first gear are fixedly connected to the outer side of the connecting shaft. The second pulley and the rotating frame are connected by a belt to maintain coaxial rotation, and the first gear is meshed and connected to the secondary toothed plate.

[0012] Further, the transmission rod is composed of a threaded rod, a gear and a pulley. The bottom of the gear is meshed and connected to the transmission component. The threaded rod is installed inside the first threaded hole, and a clutch is installed inside the gear.

[0013] Further, the connecting shaft is installed inside the positioning hole, rolling bearings are installed at both ends of the connecting shaft, and the relative position of the connecting shaft and the main leg frame is fixed.

[0014] Further, the lifting block is composed of a trapezoidal block and a second spring.

[0015] Technical effects and advantages of the present invention:

[0016] 1. By providing the main leg frame and the rotating bracket, the present invention is beneficial to rotating the rotating frame according to the stretching position and angle of the patient. The rotating frame drives the connecting component to rotate, and relative movement occurs between the main leg frame and the control component. The width between the two main leg frames is continuously increased, realizing synchronous adjustment of the fixed position and the stretching position by using the change of the patient's foot position, achieving high-accuracy traction stretching while realizing the change of the traction position, and at the same time improving the comfort of the patient.

[0017] 2. By providing the rotating bracket and the second stretching frame, the present invention is beneficial to driving the rotating bracket to move laterally by the transmission of the gear, realizing the traction of the second fixed position of the patient. The rotation of the second screw rod drives the second stretching frame to move laterally, realizing the stretching of the first position, achieving different forces and different angles of traction at multiple points on the patient's body, and realizing the synchronous control of traction at multiple points. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is a sectional view of the overall structure of the present invention.

[0020] Figure 3 is a schematic diagram of the structure of the traction bed body of the present invention.

[0021] Figure 4 is a top view of the structure of the control component of the present invention.

[0022] Figure 5 is a schematic diagram of the structure of the control component of the present invention.

[0023] Figure 6 This is a schematic structural diagram of the rotating bracket of the present invention.

[0024] Figure 7 This is a schematic structural diagram of the second stretching frame of the present invention.

[0025] Figure 8 This is a schematic structural diagram of the connection component of the present invention.

[0026] The reference numerals are: 1, traction bed body; 101, bed body main body; 102, sliding groove; 103, moving hole; 104, locking frame; 2, leg main frame; 201, leg moving plate; 202, rotating circular groove; 203, positioning hole; 3, rotating bracket; 301, rotating frame; 302, leg rod; 303, upper cover plate; 4, first bed plate; 5, control component; 501, first sliding plate; 502, first threaded hole; 503, secondary toothed plate; 504, second screw rod; 505, first pulley; 6, second stretching frame; 601, stretching moving plate; 602, threaded plate; 603, connection groove; 7, connection control rod; 701, pressing block; 702, locking block; 8, second bed plate; 9, third bed plate; 901, headrest; 902, telescopic rod; 10, first stretching frame; 1001, first fixing frame; 1002, transverse connection frame; 1003, telescopic knob; 11, transmission component; 12, strap component; 1201, traction strap; 1202, strap buckle; 1203, spacing groove; 13, lifting block; 14, connection component; 1401, connection shaft; 1402, second pulley; 1403, first gear; 15, transmission rod. Detailed implementation manners

[0027] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples, and an orthopedic limb traction and stretching device for traditional Chinese medicine involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] Refer to Figure 1 , 2 and Figure 3, the present invention provides a limb traction and stretching device for traditional Chinese orthopedics, including a traction bed body 1. The traction bed body 1 includes a bed body main body 101. A first bed board 4, a second bed board 8 and a third bed board 9 are installed on the top of the bed body main body 101. The first bed board 4 and the second bed board 8 are installed on the sliding groove 102 through a sliding plate. Two leg main frames 2 are installed on the side of the traction bed body 1. A rotating bracket 3 is installed on the top of the leg main frame 2. A moving hole 103 is opened on the side of the traction bed body 1. A control component 5 is installed inside the moving hole 103. A first stretching frame 10 is installed on the other side of the bed body main body 101. The first stretching frame 10 includes a first fixing frame 1001 and a transverse connecting frame 1002. The bottom of the transverse connecting frame 1002 is installed on the locking frame 104. A telescopic knob 1003 is installed on the outside of the transverse connecting frame 1002. The height of the first fixing frame 1001 is adjusted by rotating the telescopic knob 1003;

[0029] In this embodiment, it should be specifically noted that: the third bed board 9 is composed of a headrest 901 and a telescopic rod 902. When it is necessary to adjust the stretching angle of the upper half of the patient, the telescopic rod 902 and the telescopic knob 1003 are started to cooperate to control the stretching angle of the patient.

[0030] The main difference between this embodiment and the prior art is that in this embodiment, the synchronous adjustment of the fixed position and the stretching position is realized by using the change of the patient's foot position, and the angular change and high accuracy of the traction position are realized, specifically in the rotating bracket 3, the control component 5, and the second stretching frame 6;

[0031] The above structure is the main structure of this embodiment, which solves the problem that the current segmented traction and staged traction cannot be realized. The traction bed body 1 is an existing structure, and the specific structure and connection method of the traction bed body 1 are not specifically described in this embodiment.

[0032] Refer to Figure 4 , the transmission rod 15 is composed of a threaded rod, a gear and a pulley. The bottom of the gear is meshed and connected with the transmission component 11. The threaded rod is installed inside the first threaded hole 502. A clutch is installed inside the gear. The installation method and control method of the clutch belong to the prior art and are not specifically described in this application.

[0033] In this embodiment, it should be specifically noted that: when it is necessary to adjust the position of the leg main frame 2, the clutch controls the transmission rod 15 to be connected with the control component 5, and the control component 5 is driven by the threaded rod to control the horizontal movement of the leg main frame 2. When it is necessary to stretch the first position, the clutch controls the transmission rod 15 to be connected with the second stretching frame 6, and the position of the second stretching frame 6 is controlled by rotating the second screw rod 504 inside the second stretching frame 6 through a belt.

[0034] Refer to Figure 5, the control component 5 includes a first sliding plate 501 and a second screw rod 504. The side of the first sliding plate 501 is installed inside the second screw rod 504. A first threaded hole 502 is formed on the right side of the first sliding plate 501. The transmission rod 15 is installed inside the first threaded hole 502. Auxiliary toothed plates 503 are formed on both sides of the first sliding plate 501 where the first threaded hole 502 is located. The auxiliary toothed plates 503 are meshed and connected with the first gear 1403. A threaded groove is formed at one end of the second screw rod 504, and a first pulley 505 is installed at the other end. The first pulley 505 is connected to the transmission rod 15 through a belt.

[0035] In this embodiment, it should be specifically noted that: the control component 5 plays a supporting role for the leg main frame 2. When the leg main frame 2 moves horizontally and expands in width, the first sliding plate 501 and the second screw rod 504 apply torque to the leg main frame 2 to keep it in a horizontal state.

[0036] Refer to Figure 6 , the leg main frame 2 includes a leg moving plate 201. A rotating circular groove 202 and a positioning hole 203 are formed inside the leg moving plate 201. A connecting component 14 is installed inside the positioning hole 203. A rotating bracket 3 is installed inside the rotating circular groove 202. The rotating bracket 3 includes a rotating frame 301. The top of the rotating frame 301 is fixedly connected with an upper cover plate 303. The leg rod 302 is fixedly connected with the upper cover plate 303 through bolts. A fixing frame is installed on the side of the leg rod 302. The fixing frame fixes the stretching point strap at the second position. The movement of the leg main frame 2 is used to realize the traction at the second position. A belt groove is formed on the outer side of the rotating frame 301. A belt is installed inside the belt groove and is connected with the connecting component 14.

[0037] In this embodiment, it should be specifically noted that: the synchronous rotation of the rotating bracket 3 and the connecting component 14 realizes the synchronous change of the angle and width, so that when the patient's foot is placed at the leg rod 302, the unfolding angle of the foot is proportional to the distance between the two leg rods 302, which is convenient for the patient to achieve multi-angle traction.

[0038] Refer to Figure 7, the second stretching frame 6 includes a stretching moving plate 601. A threaded plate 602 is fixedly connected to the bottom of the stretching moving plate 601. A threaded hole is formed inside the threaded plate 602. One end of a transmission rod 15 is installed inside the threaded hole. A plurality of connection grooves 603 are formed at the top of the stretching moving plate 601. Both ends of a strap assembly 12 are installed inside the connection grooves 603. The strap assembly 12 includes a traction strap 1201. Strap buckles 1202 are fixedly connected to both ends of the traction strap 1201. A spacing groove 1203 is formed on the front of the strap buckle 1202. A plurality of first card slots are formed at the bottom of the spacing groove 1203. A lifting block 13 is installed at the bottom of the connection groove 603. A connection control rod 7 is installed on the side inside the connection groove 603. The connection control rod 7 is composed of a pressing block 701 and a locking block 702. The locking block 702 is installed on the front of the spacing groove 1203. A plurality of second card slots are formed on the locking block 702. A return spring is sleeved outside the pressing block 701. When the strap buckle 1202 is pressed down, the two card slots are staggered, enabling the strap buckle 1202 to descend normally. After the spacing groove 1203 enters the connection groove 603, the return spring aligns the positions of the first card slot and the second card slot. At this time, the strap buckle 1202 cannot be pulled out, realizing the fixation of the strap assembly 12.

[0039] In this embodiment, it should be specifically noted that: the lifting block 13 is composed of a trapezoidal block and a second spring. When it is necessary to unlock the strap assembly 12, press the end of the pressing block 701. The pressing block 701 exerts pressure on the return spring, and the first card slot and the second card slot are staggered again. The strap buckle 1202 automatically rises under the action of the second spring, realizing the ejection of the strap buckle 1202.

[0040] The second stretching frame 6 and the strap assembly 12 form a first traction assembly. By fixing the first traction position of the patient on the second stretching frame 6 through the strap assembly 12, the traction and stretching of the first position of the patient are realized by the movement of the second stretching frame 6. It should be noted that the first stretching position and the second stretching position are located at different positions on the patient's body. Different pulling forces are achieved through different fixed positions and different stretching controls, thereby realizing different and precise controls at multiple angles and multiple points.

[0041] Refer to Figure 8 , the connection assembly 14 includes a connection shaft 1401. A second pulley 1402 and a first gear 1403 are fixedly connected to the outside of the connection shaft 1401. The second pulley 1402 and the rotating frame 301 are connected by a belt and rotate coaxially. The first gear 1403 is meshed with the secondary toothed plate 503. When the rotating bracket 3 rotates, the belt drives the connection assembly 14 to rotate, thereby realizing the position adjustment of the leg main frame 2.

[0042] In this embodiment, it should be specifically noted that the connecting shaft 1401 is installed inside the positioning hole 203. Rolling bearings are installed at both ends of the connecting shaft 1401, and the relative position of the connecting shaft 1401 and the main leg frame 2 is fixed.

[0043] Working principle of the present invention:

[0044] The main problems solved by this embodiment are as follows: The synchronous adjustment of the fixed position and the stretching position is realized by using the position change of the patient's feet, achieving a high accuracy of the traction position, solving the problem that segmented traction and phased traction cannot be realized at present. At the same time, the lifting and fixing of the head are realized by using the third bed board 9 and the first stretching frame 10, solving the problem that traction in different position directions of the patient cannot be realized at present, and achieving a more accurate and large-range traction angle.

[0045] The specific steps are as follows:

[0046] The patient lies on the traction bed body 1, with the head placed on the headrest 901 and the feet placed on the leg rod 302. The transmission component 11 is started. The transmission component 11 drives the transmission rod 15 to rotate through a gear. Since a threaded groove is provided on the transmission rod 15 and it is installed inside the first threaded hole 502, when the gear rotates, the control component 5 moves towards one side of the main leg frame 2 under the drive of the transmission rod 15 until the leg rod 302 moves to the patient's ankle. At this time, the rotating frame 301 is rotated according to the stretching position and angle of the patient. The belt installed inside the rotating frame 301 drives the connecting component 14 to rotate through the second pulley 1402. Since the first gear 1403 meshes with the secondary toothed plate 503, a relative movement occurs between the main leg frame 2 and the control component 5 at this time, and the leg moving plate 201 moves towards both ends of the first sliding plate 501. The width between the two main leg frames 2 continuously increases until the heel is located at the top of the leg rod 302, and the upper cover plate 303 is fixed to fix the patient's foot position;

[0047] At this time, install the strap. The strap at the first position is composed of the strap assembly 12. Press both ends of the strap assembly 12 inside the connecting groove 603. Since the first card slot of the spacer groove 1203 and the second card slot of the locking block 702 are staggered, the strap assembly 12 is fixed by the locking block 702 and cannot move again. At this time, the binding of the first fixed position of the patient is completed. The second position is fixed by using the strap in the prior art to fix it on the fixing bracket on the side of the leg rod 302. After the fixation is completed, start the transmission assembly 11 again. With the transmission of the gear, the leg main frame 2 drives the rotating bracket 3 to move sideways again, realizing the traction of the second fixed position of the patient. And because the clutch is installed inside the gear on the transmission rod 15, when it is necessary to stretch the second position, start the clutch to connect the pulley on the transmission rod 15 with the transmission assembly 11. When starting the transmission assembly 11 again, the pulley drives the first pulley 505 to rotate, and then realizes the rotation of the second screw rod 504. Since the second screw rod 504 is provided with a thread groove and is installed inside the thread plate 602, the second screw rod 504 drives the second stretching frame 6 to move sideways, realizing the stretching of the first position;

[0048] When it is necessary to adjust the stretching angle of the head, start the telescopic rod 902 and the telescopic knob 1003. The telescopic rod 902 raises the headrest 901, and the upper body of the patient inclines. The telescopic knob 1003 raises the position of the first fixing bracket 1001. Then fix both ends of the traditional strap to the lumbar vertebra of the patient and the side of the first fixing bracket 1001 respectively. At this time, since the upper body of the patient is in an inclined state, the change in the angle can promote the adjustment of the traction angle of the patient's vertebrae and adapt to the traction positions of different vertebrae.

[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A limb traction and stretching device for traditional Chinese medicine orthopedics, comprising a traction bed (1), characterized in that: The traction bed body (1) comprises a bed body main body (101), a first bed board (4), a second bed board (8) and a third bed board (9) are installed on the top of the bed body main body (101), the first bed board (4) and the second bed board (8) are installed on the sliding groove (102) via a slide plate, a second stretching frame (6) is installed on the top of the first bed board (4), two leg main frames (2) are installed on the side of the traction bed body (1), a rotating bracket (3) is installed on the top of the leg main frame (2), and a moving hole (103) is opened on the side of the traction bed body (1), and the moving hole (103) A control component (5) is installed inside the bed body (101); a first stretching frame (10) is installed on the other side of the bed body (101); the first stretching frame (100) comprises a first fixing frame (1001) and a transverse connecting frame (1002); the bottom of the transverse connecting frame (1002) is installed on the locking frame (104); a telescopic knob (1003) is installed on the outside of the transverse connecting frame (1002); the height of the first fixing frame (1001) is adjusted by rotating the telescopic knob (1003); the third bed board (9) is composed of a headrest (901) and a telescopic rod (902); The control assembly (5) comprises a first sliding plate (501) and a second screw rod (504); the side of the first sliding plate (501) is mounted inside the second screw rod (504); a first threaded hole (502) is provided on the right side of the first sliding plate (501); a transmission rod (15) is mounted inside the first threaded hole (502); auxiliary tooth plates (503) are provided on both sides of the first threaded hole (502) of the first sliding plate (501); the auxiliary tooth plates (503) are meshedly connected with the first gear (1403); a threaded groove is provided at one end of the second screw rod (504); a first belt pulley (505) is mounted on the other end; the first belt pulley (505) is connected to the transmission rod (15) via a belt; The leg main frame (2) comprises a leg moving plate (201), a rotating circular groove (202) and a positioning hole (203) are provided inside the leg moving plate (201), a connecting assembly (14) is installed inside the positioning hole (203), a rotating bracket (3) is installed inside the rotating circular groove (202), the rotating bracket (3) comprises a rotating frame (301), an upper cover plate (303) is fixedly connected to the top of the rotating frame (301), the leg rod (302) and the upper cover plate (303) are fixedly connected by bolts, and a fixing frame is installed on the side of the leg rod (302), and the fixing frame fixes the stretching point strap at the second position; The second stretching frame (6) comprises a stretching movable plate (601), the bottom of the stretching movable plate (601) is fixedly connected to a threaded plate (602), a threaded hole is provided inside the threaded plate (602), one end of the transmission rod (15) is mounted inside the threaded hole, a plurality of connection grooves (603) are provided on the top of the stretching movable plate (601), and both ends of the binding belt assembly (12) are mounted inside the connection grooves (603); The strap assembly (12) comprises a traction strap (1201), both ends of the traction strap (1201) are fixedly connected to strap buckles (1202), a spacing groove (1203) is provided on the front of the strap buckle (1202), a plurality of first slots are provided at the bottom of the spacing groove (1203), a lifting block (13) is installed at the bottom of the connecting groove (603), a connecting control rod (7) is installed on the side of the connecting groove (603), a lifting block (13) is installed at the bottom of the connecting control rod (7), and the connecting control rod (7) is composed of a pressing block (701) and a locking block (702), the locking block (702) being mounted on the front side of the spacing groove (1203), a plurality of second slots being provided on the locking block (702), a return spring being sleeved on the outer side of the pressing block (701), the strap assembly (12) and the second stretching frame (6) forming a first traction assembly, and the first traction position of the patient is fixed on the second stretching frame (6) through the strap assembly (12), and the traction and stretching of the first position of the patient is achieved by moving the second stretching frame (6); The connecting assembly (14) comprises a connecting shaft (1401), the outer side of the connecting shaft (1401) is fixedly connected with a second pulley (1402) and a first gear (1403), the second pulley (1402) and the rotating frame (301) are connected via a belt to maintain coaxial rotation, and the first gear (1403) is meshingly connected with the auxiliary gear plate (503); The transmission rod (15) is composed of a threaded rod, a gear and a pulley. The bottom of the gear is meshed and connected with the transmission assembly (11). The threaded rod is installed inside the first threaded hole (502). A clutch is installed inside the gear.

2. A limb traction and stretching device for traditional Chinese orthopedics according to claim 1, characterized in that: The connecting shaft (1401) is installed inside the positioning hole (203), rolling bearings are installed at both ends of the connecting shaft (1401), and the relative position of the connecting shaft (1401) and the leg main frame (2) is fixed.

3. A limb traction and stretching device for traditional Chinese orthopedics according to claim 1, characterized in that: The lifting block (13) consists of a trapezoidal block and a second spring.

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