CN207545423U - A kind of limbs training auxiliary device and traction table - Google Patents

Abstract

The utility model discloses a limb training auxiliary device and a traction bed, belonging to the technical field of medical equipment. Wherein, the limb training auxiliary device includes: a support frame (11) fixed on the traction bed (2); a fixed pulley (12) is provided on the support frame (11); a traction line (13), including: end, used for fixedly connecting the traction fixing part of the traction part (14), and the second end corresponding to the first end, used for mounting the mounting part of the counterweight (15), the traction part (14), fixed It is arranged on the traction and fixing part for fixing the limbs; the counterweight (15) is fixedly arranged on the mounting part to form traction on the limbs; the traction line (13) is set on the slideway of the fixed pulley (12) , so that traction and pull interact. In this way, stroke patients can perform muscle strength recovery training on the corresponding limbs on the hospital bed, avoiding the occurrence of problems such as muscle atrophy and thrombus formation in patients.

Description

An auxiliary device for limb training and a traction bed

technical field

The utility model relates to the technical field of medical equipment, in particular to a limb training auxiliary device and a traction bed.

Background technique

Stroke has the characteristics of high morbidity and high disability rate. There are about 2 million new stroke patients in China every year, and 70%-80% of stroke patients cannot live independently because of disabilities. Muscle weakness is a common damage after stroke, and muscle weakness and muscle spasm are the main factors affecting the recovery of motor function in patients after stroke. However, for a long time, traditional neurofacilitation techniques have emphasized the control of spasticity while ignoring the underlying muscle weakness. Another common occurrence is that interventions often focus on functional training and neglect muscle weakness. As a result, some stroke patients will experience complications such as muscle atrophy and thrombosis. In addition, the existing rehabilitation training technology can only solve the technical problems of patient reset and fixation, ignoring the recovery of related limb function exercises and muscle strength of patients. The important role of training in rehabilitation training. In addition, the traction beds and supporting training devices in the prior art are mostly configured and used in hospitals, and they are used frequently and repeatedly, often causing the problem of cross-infection in wards; or purchased for home use, which is costly and wastes resources. In addition, the traction bed and its rehabilitation training device in the prior art also have the following problems: complex structure, inconvenient use, special person debugging is required for a single bedside rehabilitation treatment for a patient, and the cost is relatively high.

Therefore, the inventors found that the enhancement of lower limb muscle strength in stroke patients was positively correlated with walking speed, and negatively correlated with the incidence of falls in the elderly. Some studies have also confirmed that intensive muscle strength training has a positive effect on the recovery of motor function in stroke patients. Studies by Morris et al. have shown that high-intensity progressive resistance training for stroke patients can significantly improve the muscle strength around the hip and knee joints of the affected and unaffected sides of the lower limbs, and improve motor function.

Contents of the invention

Aiming at the defects and problems in the above-mentioned prior art, the utility model is a limb training auxiliary device and a traction bed, which are applied in the technical field of medical equipment. Strong, easy to replace parts, reduce cross-infection in wards, easy to operate, and easy to promote on a large scale.

According to one aspect of the embodiment of the present invention, there is provided a limb training auxiliary device, which is set on the traction bed, including: a support frame fixed on the traction bed, and a fixed pulley is arranged on the support frame; a traction line, including: The traction fixing part connecting the traction part is arranged at the first end of the traction line; and the mounting part for mounting the counterweight is provided at the second end of the traction line; wherein, the first end and the second end It is the corresponding two ends of the traction line; the traction part is fixedly arranged on the traction fixed part, which is used to fix the limbs; the counterweight is fixedly arranged on the mounting part to form traction on the limbs; the traction line is set on the fixed pulley on the slideway, so that when the traction force is less than the pulling force of the limbs, the pulley rotates along the direction of the pulling force; or, when the traction force is greater than the pulling force of the limbs, the pulley rotates along the direction of the pulling force; or when the traction force is equal to that of the limbs When the tension of the part is applied, the pulley remains at rest.

Further, the auxiliary device for physical training, wherein the fixed pulley includes: a pulley and a pulley shaft, the pulley can rotate around the pulley shaft; a sliding block is fixedly connected to the end of the fixed pulley, and the sliding block is slidably connected to the support frame.

Further, in the assisting device for physical training, the support frame is provided with a sliding track matching the sliding block, and the sliding block is at least partially fitted into the sliding track and is slidably connected to the sliding track.

Furthermore, in the auxiliary device for physical training, an opening is provided on the sliding block, and the support frame is passed through the opening, so that the sliding block can slide along the direction of the support frame.

Further, the auxiliary device for physical training, wherein, the support frame includes: a first support part and a second support part; the first support part is fixed on the traction bed, and is vertically arranged with the bed surface of the traction bed; the second support part is connected with the first support part A supporting part is arranged vertically, and the fixed pulley is arranged on the second supporting part.

Further, the auxiliary device for physical training, wherein, the support frame includes: a support bar, the support bar is fixed to the traction bed, and is arranged vertically to the bed surface of the traction bed, and the fixed pulley is arranged on the support bar.

Further, the auxiliary device for physical training, wherein the fixed pulley includes: one or two; wherein, when the fixed pulley includes two fixed pulleys, the two fixed pulleys are arranged on the second support part, and the two fixed pulleys are kept Set the distance so that the vertical projection of the counterweight is outside the bed surface of the traction bed.

Further, the auxiliary device for physical training, wherein the fixed pulley includes two, wherein the two fixed pulleys are arranged on the support rod, and the two fixed pulleys are separated by a predetermined height on the support rod, and the traction and fixing part includes: two fixed pulleys Among the pulleys, a fixed pulley with a relatively high height and a movable pulley; the end of the movable pulley is fixedly connected to the traction part; wherein, the first end of the traction line is sleeved and fixed on a relatively high fixed pulley, and the traction line passes through the pulley. The movable pulley is set up among the two fixed pulleys, and the fixed pulley with a relatively low height makes the traction line between the two fixed pulleys take the shape of a side "U"; among them, among the two fixed pulleys, the height is opposite The lower fixed pulley extends beyond the bed surface of the traction bed, so that the vertical projection of the counterweight is outside the bed surface of the traction bed.

Further, the auxiliary device for limb training, wherein the traction part includes at least two layers of pallets, wherein the first layer of pallets is made of cortical material and is arranged on the outer layer of the traction part; the second layer of pallets is made of cotton material and is arranged on The interior of the first pallet.

According to another aspect of the present utility model, a traction bed is provided, wherein the above-mentioned auxiliary device for limb training is provided on the traction bed.

The beneficial effect of the embodiment of the utility model is that, because of the use of the auxiliary device for limb training and the traction bed with the device, it provides an opportunity for in-bed training for stroke patients who cannot get out of bed for rehabilitation training in a short period of time, so that stroke patients can rest on the bed. , can carry out muscle strength recovery training for the corresponding limbs, avoiding the technical defects in the prior art that only focus on the traditional nerve promotion technology and emphasize the control of spasticity and functional training, resulting in muscle weakness, which in turn leads to muscle atrophy and thrombus formation . The limb training auxiliary device of the utility model is simple in structure, strong in practicability, low in manufacturing cost, and easy to operate without the assistance of others. Inconvenient, the technical defect that the patient needs to be debugged by a special person for a single bedside rehabilitation treatment.

In addition, due to the multi-level design adopted by the traction part of the utility model, soft cotton material is used inside the part directly in contact with the injured limbs, so that the injured limbs can be trained comfortably, and the inner cotton supporting board adopts a replaceable design, In the process of use, only the cotton support plate that is in contact with the affected part of the limb can be replaced, which is easy to operate, saves resources, and can reduce cross-infection in the ward. It solves the problem of cross-infection in the ward caused by multiple times and repeated use of the training device configured in the hospital in the prior art, and the problem of high cost and waste of resources when some patients purchase the device for home use. It is further explained that the limb training auxiliary device and the traction bed provided by the embodiment of the utility model are low in cost, easy to operate, remarkable in function and effect, and have broad market prospects.

Description of drawings

Fig. 1 is a schematic diagram of training in the vertical direction of the upper limbs provided by the first and second embodiments of the utility model;

Fig. 2 is a schematic diagram of training in the horizontal direction of the lower limbs provided by the second and third embodiments of the present invention;

Fig. 3 is a schematic diagram of training in the vertical direction of the lower limbs provided by the fourth embodiment of the present invention.

1-limb training auxiliary device, 11-support frame, 111-first support part, 112-second support part, 113-support rod, 12-fixed pulley, 121-moving pulley, 13-traction line, 14-traction part, 15-counterweight, 16-sliding block.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

Example 1

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of upper limb vertical training provided by the first embodiment of the present invention.

As shown in Figure 1,

In an optional embodiment, a limb training auxiliary device is arranged on the traction bed 2, including: a support frame 11 fixedly arranged on the traction bed 2, and a fixed pulley 12 is arranged on the support frame 11; a traction line 13 includes: The traction fixing part for fixedly connecting the traction part 14 is arranged at the first end of the traction line 13; and the mounting part for mounting the counterweight 15 is provided at the second end of the traction line 13; wherein, The first end and the second end are the corresponding two ends on the traction line 13; the traction part 14 is fixedly arranged on the traction fixing part for fixing the limb parts; the counterweight 15 is fixedly arranged on the mounting part to support the The position forms traction force; traction line 13 is built on the slideway of fixed pulley 12, to make fixed pulley rotate along the pulling force direction when traction force is less than the pulling force of limb parts; The pulley turns in the direction of the pulling force; or, when the pulling force is equal to the pulling force of the limb part, the fixed pulley remains stationary. Compared with the traditional rehabilitation training device, the limb training auxiliary device provided by the embodiment of the utility model is simple in structure, strong in practicability, low in manufacturing cost, and easy to operate, without the assistance of others, and the patient can complete the training on the traction bed 2 by himself. It solves the technical defects in the prior art that the training device is complex in structure and inconvenient to use, and a single bedside rehabilitation treatment for a patient needs to be debugged by a special person.

In an optional embodiment, a kind of auxiliary device for limb training, wherein, the fixed pulley 12 comprises: a pulley and a pulley shaft, the pulley can rotate around the pulley shaft; a sliding block 16 is fixedly connected to the end of the fixed pulley, and the sliding block 16 and The support frame 11 is slidingly connected. The sliding block 16 is provided with an opening, and the supporting frame 11 passes through the opening, so that the sliding block 16 can slide along the direction of the supporting frame 11 . The support frame 11 is provided with a sliding track matching the sliding block 16, and the sliding block 16 is at least partially embedded in the sliding track and is slidably connected with the sliding track. By sliding the sliding block 16, the position of the fixed pulley 12 on the support bar 11 is changed, and at the same time, the position of the traction part 14 fixed on one end of the traction line 13 through the fixed pulley changes with the change of the fixed pulley position, and finally the fixed pulley The position is adjusted to the patient's limb disease, so as to perform vertical rehabilitation training on the limb disease.

Example 2

Please refer to Fig. 1, Fig. 1 is a schematic diagram of upper limb vertical direction training provided by the first and second embodiments of the present invention.

As shown in Figure 1, in another optional embodiment, a kind of auxiliary device for limb training, wherein, the support frame 11 comprises: a first support part 111 and a second support part 112; the first support part 111 is fixed on the traction bed 2, and set vertically to the bed surface of the traction bed 2; the second support part 112 is set perpendicular to the first support part 111, and the fixed pulley 12 is set on the second support part 112.

Fig. 2 is a schematic diagram of training in the horizontal direction of the lower limbs provided by the second embodiment of the present invention.

In an optional embodiment, as shown in FIG. 2 , a limb training auxiliary device, wherein the support frame 11 includes: a support rod 113, the support rod 113 is fixed on the traction bed 2, and is perpendicular to the bed surface of the traction bed 2 Set, the fixed pulley 12 is set on the support rod 113 . In yet another optional embodiment, as shown in Fig. 1 and Fig. 2, a kind of limb training auxiliary device, wherein, fixed pulley 12 comprises: one or two; Wherein, when fixed pulley 12 comprises two as shown in Fig. 1 When the fixed pulley 12 is fixed, two fixed pulleys are arranged on the second support part 112, and the two fixed pulleys 12 keep a preset distance, and one of the fixed pulleys 12 is transferred to the patient's limb disease near the bed side, so that The patient can perform vertical limb rehabilitation training on the traction bed 1, and another fixed pulley is transferred to the outside of the bed surface so that the vertical projection of the counterweight 15 is outside the bed surface of the traction bed 2.

Example 3

In an optional embodiment, a limb training auxiliary device, wherein the fixed pulley 12 includes two, wherein the two fixed pulleys 12 are arranged on the support rod 113, and the two fixed pulleys 12 are connected on the support rod 113. At a predetermined height, the traction fixing part includes: among the two fixed pulleys 12, a fixed pulley 12 with a relatively high height, and a movable pulley 121; the end of the movable pulley 121 is fixedly connected to the traction part 14; wherein, the first end of the traction line 13 Sleeved and fixed on a fixed pulley 12 with a relatively high height, the traction line 12 passes through the movable pulley 121, and is built in two fixed pulleys 12, and a fixed pulley 12 with a relatively low height, so that the two fixed pulleys The traction line between the 12 is in the shape of a side "U", which is convenient for patients to carry out physical rehabilitation training in the horizontal direction; among the two fixed pulleys 12, the fixed pulley 12 with a relatively low height is facing the traction bed 2. The bed surface is extended so that the vertical projection of the counterweight is outside the bed surface of the traction bed.

In an optional embodiment, a limb training auxiliary device, wherein, the limb training auxiliary device, wherein the traction part 14 includes at least two layers of pallets, wherein the first layer of pallets is made of leather material, and is arranged on the traction part 14. The outer layer; the second layer of supporting board is made of cotton material, which is arranged inside the first layer of supporting board. Through the multi-layer design, soft cotton material is used on the inside that is in direct contact with the injured limb, so that the injured limb can be trained comfortably, and the inner cotton support board adopts a replaceable design, and only the inner part is replaced during use. The cotton support plate only needs to touch the affected limbs, which is easy to operate, saves resources, and can reduce cross-infection in the ward. It solves the problem of cross-infection in the ward caused by multiple times and repeated use of the training device configured in the hospital in the prior art, and the problem of high cost and waste of resources when some patients purchase the device for home use.

Example 4

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of training in the vertical direction of the lower limbs provided by the fourth embodiment of the present invention.

In an optional embodiment, as shown in FIG. 3 , a traction bed 2 is provided, wherein the above-mentioned auxiliary device for limb training is arranged on the traction bed 2 . The use of the traction bed 2 with this device provides an opportunity for bed training for stroke patients who cannot get out of bed for rehabilitation training in a short period of time, so that stroke patients can perform muscle strength recovery training for corresponding limbs on the hospital bed, avoiding the need for physical training. Among the existing technologies, only the traditional nerve promotion technology emphasizes the control of spasticity and the muscle weakness caused by functional training, which in turn leads to the technical defects of muscle atrophy and thrombus formation.

To sum up, the application of the limb training auxiliary device and the traction bed 2 with the device provides an opportunity for bed training for stroke patients who cannot get out of bed for rehabilitation training in a short period of time, so that stroke patients can perform corresponding limb training on the hospital bed. Muscle strength recovery training at the site avoids the technique of muscle atrophy and thrombus formation. Secondly, the limb training auxiliary device is simple in structure, strong in practicability, low in manufacturing cost, and easy to operate, without the assistance of others, and the patient can complete the training by himself on the traction bed. In addition, because of the multi-level design adopted by the traction part 14 of the limb training auxiliary device, soft cotton material is used inside the part directly in contact with the injured limb, so that the limb sick part can be trained comfortably, and the inner cotton supporting board is made of replaceable Design, in the process of use, only the cotton support plate that is in contact with the affected part of the limb can be replaced, which is easy to operate, saves resources, and can reduce cross-infection in the ward. The invention realizes low cost, simple and convenient operation, remarkable functional effect and broad market prospect.

In a specific implementation example, when a stroke patient is unable to get out of bed for rehabilitation training in a short period of time, the stroke patient can be placed on the traction bed 2 equipped with a limb training auxiliary device for corresponding limb rehabilitation training. Corresponding to upper body training and lower body training respectively.

Upper limb training: as shown in Figure 1, when the patient's part is the left wrist of the upper limb, the patient lies down on the traction bed 2 to a comfortable posture, and the second supporting part 112 of the limb training auxiliary device support frame 11 is transferred to the left hand side, then adjust the fixed pulley 12 of the second support part 112 close to the bed surface side through the sliding block 16 connected to the fixed pulley 12 to the left wrist, and then adjust the fixed pulley 12 to the left wrist, which has been fixed by tape. Place the second-layer supporting plate of the traction part 14 at the adjusted position. After the patient's left wrist is comfortable, fix the wrist on the traction part, and implement traction through the counterweight 15 that has been adjusted to the outside of the bed surface. Perform muscle strength recovery training in the vertical direction; if the patient's part is at the elbow of the left hand, the sliding block can be slid to the elbow on the second support part 112 for fixation, and then perform muscle strength recovery training. In addition, when the patient's sick part is somewhere on the right arm of the upper limb, the above method can also be used to first adjust the second support part 112 to the right hand, and then adjust the two fixed pulleys 12 to the bed surface through the sliding block 16 respectively. Fix the diseased part of the right arm on the side and the outside of the bed surface. After adjusting the affected part comfortably, fix it on the traction part 14, and then carry out the rehabilitation training of the upper limbs in the vertical direction, so that the muscle strength of the upper limbs can be gradually restored, and muscle atrophy can be avoided. , Thrombosis.

When the patient's part is the forearm or other parts of the left and right arms of the upper limbs, first fix the forearm or other parts of the patient with a bandage, and then adjust the support rod 113 to the position of the patient's left arm or right arm, and Slide the two fixed pulleys to the high position and the low position respectively, pass the movable pulley through the traction line between the high position and the low position fixed pulley, and fix it to the traction part, so that the traction line between the two fixed pulleys 12 is side "U". font, to comfortably fix the bandage-fixed patient to the traction part. At this time, the low-position fixed pulley 12 can be used to extend the counterweight 15 on the outside of the bed surface to form a traction force to level the patient on the left and right arms of the upper limbs. Muscle strength recovery training in the same direction, so that the muscle strength of the upper limbs can be gradually restored, and muscle atrophy and thrombosis can be avoided.

Lower limb training: as shown in Figure 3, when the patient's part is the left leg ankle of the lower limb, the patient lies down on the traction bed 2 to a comfortable posture, and adjusts the second support part 112 of the limb auxiliary training device support frame To the left leg side, adjust the fixed pulley 12 of the second support part 112 to the ankle of the left leg through the sliding block 16 connected to the fixed pulley 12, and place the left leg ankle fixed by the bandage at the adjusted position The second layer of supporting plate of the traction part 14, after the ankle of the patient's left leg is comfortable, the ankle is fixed on the traction part 14, and then the traction force formed by the counterweight 15 is used to exert the muscle strength on the left leg ankle in the vertical direction. Recovery training; if the sick part is on the left leg, then the sliding block 16 can be slid to the calf on the second support part 112 to fix it, and then carry out muscle strength recovery training. In addition, when the patient's sick part is somewhere on the right leg of the lower limb, the above method can also be used to first adjust the second support part 112 to the right leg, and then adjust the fixed pulley 12 to the side of the bed surface through the sliding block 16. The diseased part of the right leg is fixed, and after the affected part is adjusted comfortably, it is fixed on the traction part 14, and the rehabilitation training of the lower limbs in the vertical direction can be carried out, so that the muscle strength of the lower limbs is gradually restored, and muscle atrophy and thrombus formation are avoided.

As shown in Figure 2, when the patient's part is the calf arm of the left and right legs of the lower limbs or other parts, first fix the calf arm or other parts of the patient with a bandage, and then adjust the support rod 113 to the patient's left leg or The position of the right leg, slide the two fixed pulleys 12 to the high position and the low position respectively, and the movable pulley 121 is fixedly connected to the traction part 14 through the traction line between the high position and the low position fixed pulley. The traction line is in the shape of a side "U" and comfortably fixes the bandage-fixed patient part to the traction part 14. At this time, the counterweight 15 extending out of the bed surface through the low fixed pulley can form a traction force for the upper limbs. The muscle strength recovery training in the horizontal direction is carried out on the affected parts of the left and right legs, so that the muscle strength of the lower limbs can be gradually restored, and muscle atrophy and thrombus formation can be avoided.

The second layer of supporting plate of the traction part 14 of the utility model is a replaceable supporting plate, which can be directly replaced when different parts are trained or used by different people, which is easy to operate and prevents cross-infection in wards.

It should be understood that the above specific embodiments of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims, or equivalents of such scope and boundaries.

Claims (9)

1. A limb training auxiliary device, which is arranged on a traction bed (2), is characterized in that, comprising: fixedly arranged on the support frame (11) of the traction bed (2); The support frame (11) is provided with a fixed pulley (12); Described fixed pulley (12) comprises: pulley and pulley shaft, and described fixed pulley (12) can rotate around described pulley shaft; A sliding block (16) is fixedly connected to the end of the fixed pulley, and the sliding block (16) is slidably connected to the support frame (11); The traction line (13), comprising: a traction fixing part for fixedly connecting the traction part (14), which is arranged at the first end of the traction line (13); The loading part is arranged on the second end of the pulling line (13); wherein, the first end and the second end are corresponding two ends on the pulling line (13); the pulling part (14) is fixedly arranged In the traction and fixing part, it is used to fix limb parts; The counterweight (15) is fixedly arranged on the mounting part to form traction on the limbs; The traction line (13) is set on the slideway of the fixed pulley (12), so that the fixed pulley (12) rotates along the direction of the pulling force when the pulling force of the pulling force is less than the pulling force of the limbs; or, When it is greater than the pulling force of the limbs, the fixed pulley (12) is made to rotate along the direction of the pulling force; or when the pulling force is equal to the pulling force of the limbs, the fixed pulley (12) is kept in a static state. 2. The limb training auxiliary device according to claim 1, characterized in that, The support frame (11) is provided with a slideway matched with the slide block (16), and the slide block (16) is at least partially fitted into the slideway and is slidably connected with the slideway. 3. The limb training auxiliary device according to claim 1, characterized in that, The sliding block (16) is provided with an opening, and the support frame (11) is passed through the opening, so that the sliding block (16) can slide along the direction of the support frame (11). 4. The limb training auxiliary device according to claim 2 or 3, characterized in that, The support frame (11) comprises: a first support part (111) and a second support part (112); Wherein, the first support part (111) is fixed to the traction bed (2), and is vertically arranged with the bed surface of the traction bed (2); The second support part (112) is arranged perpendicular to the first support part (111), and the fixed pulley (12) is arranged on the second support part (112). 5. The limb training auxiliary device according to claim 2 or 3, characterized in that, The support frame (11) includes: a support rod (113), the support rod (113) is fixed on the traction bed (2), and is vertically arranged with the bed surface of the traction bed (2), and the fixed pulley (12) Set on the support rod (113). 6. The auxiliary device for limb training according to claim 4, characterized in that it comprises two fixed pulleys (12), and the two fixed pulleys (12) are arranged on the second support part (112), and The two fixed pulleys (12) maintain a preset distance, so that the vertical projection of the counterweight (15) is outside the bed surface of the traction bed (2). 7. The limb training auxiliary device according to claim 5, characterized in that, the fixed pulley (12) comprises two, and the two fixed pulleys (12) are arranged on the support rod (113), and The two fixed pulleys (12) are separated by a predetermined height on the support bar (113), and the traction fixing part includes: among the two fixed pulleys (12), a relatively high fixed pulley ( 12), and a movable pulley (121); the end of the movable pulley (121) is fixedly connected to the traction part; Wherein, the first end of the traction line (13) is sheathed and fixed on a relatively high fixed pulley (12), the traction line passes through the movable pulley (121), and is erected on two fixed pulleys (12). Among the pulleys (12), a fixed pulley (12) with relatively low height, so that the traction line (13) between the two fixed pulleys (12) is a side "U" shape; Wherein, among the two fixed pulleys (12), a fixed pulley (12) with a relatively low height is extended to the outside of the bed surface of the traction bed, so that the vertical projection of the counterweight (15) is in the traction position. Outside the bed surface of bed (2). 8. Auxiliary device for limb training according to claim 1, characterized in that, the traction part (14) comprises at least two layers of supporting plates, wherein the first layer of supporting plates is a cortical material, and is arranged on the traction part (14). 14) of the outer layer; the second layer of supporting board is made of cotton material, and is arranged inside the first layer of supporting board. 9. A traction bed, characterized in that, the traction bed (2) is provided with the limb training auxiliary device according to any one of claims 1 to 8.