A wrist and elbow training device

Abstract

This application relates to the field of wrist and elbow training, and specifically provides a wrist and elbow training device. A connecting shaft is provided on a base. The connecting shaft is fixed to the base and can rotate around its central axis. A first turntable is fixedly arranged on the connecting shaft. The first turntable rotates together with the connecting shaft. A plurality of obstacle components are fixedly arranged on one side surface of the first turntable. A rotating rod is arranged on the connecting shaft. The rotating rod is arranged on the side of the first turntable where the obstacle components are provided. The rotating rod can rotate on the connecting shaft and move along the central axis of the connecting shaft. The turntable of the training device of the present invention is provided with obstacle components, and the rotating rod can move in the axial direction of the connecting shaft. The user holds the contact part, so that the control connecting rod moves according to the preset path of the obstacle components, thereby exercising the function of the coordinated cooperation between the wrist and elbow muscle groups. At the same time, the device does not include a driving device, and the user can actively exert force, which is beneficial to the recovery of the muscle contraction function.

Description

Technical Field

[0001] The present application relates to the field of wrist and elbow training, and more specifically, to a wrist and elbow training device. Background Art

[0002] Due to accidents or diseases, the functions of the human wrist and elbow parts may be restricted or damaged. The damaged parts need to be effectively trained, which is crucial for the functional recovery of the damaged parts. Especially for stroke patients, the manifestations of stroke patients are: atrophy of hand muscles and weakness of wrist strength, resulting in the inability to make good use of their wrists to perform some daily activities. Therefore, effective rehabilitation training for the damaged wrist and elbow is very important for the training of the damaged parts.

[0003] In the invention patent with the invention name of "An upper limb rehabilitation robot finger and wrist training device" and the authorization announcement number of "CN105796285 B", a training device is disclosed, which includes a mounting base, a wrist rotation motion mechanism, and a finger grasping and stretching motion mechanism. Specifically, the first servo motor and the second servo motor respectively drive the wrist rotation motion mechanism and the finger grasping and stretching motion mechanism through a two-stage reduction mechanism, thereby driving the damaged part to move and achieving the effect of rehabilitation training. In the utility model patent with the name of "A wrist training device" and the authorization announcement number of "CN 206334070 U", a wrist training device is disclosed. The device includes a frame body, on which a forearm bracket and a wrist training mechanism are arranged, and the wrist training mechanism is connected to a swing driving device installed on the frame body; the driving device drives the wrist training mechanism to move, and the wrist makes specific movements, thereby achieving the training purpose. However, the existing training devices are relatively large in size and are not suitable for users to exercise at home; moreover, the above devices drive the movement of the wrist and elbow passively by controlling the mechanical structure through an electric circuit to achieve the effect of rehabilitation exercise. This way of passively driving the movement of the wrist and elbow can only exercise the functions of specific muscle groups and lacks the training of the cooperative functions between muscle groups; at the same time, since the muscle groups of the user do not actively exert force, the effect on the contraction function of the muscles is poor.

[0004] In summary, the existing wrist and elbow training devices have poor training effects on the cooperative functions between muscle groups and the muscle contraction function. Summary of the Invention

[0005] The purpose of the present invention is to provide a wrist and elbow training device to solve the problem that the existing wrist and elbow training devices have poor training effects on the cooperative functions between muscle groups and the muscle contraction function, aiming at the deficiencies in the above-mentioned existing technologies.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] The present application provides a wrist and elbow training device. A connecting shaft is provided on a base. The connecting shaft is fixed on the base and can rotate around its central axis. A first turntable is fixedly provided on the connecting shaft. The first turntable rotates together with the connecting shaft. A plurality of obstacle components are fixedly provided on one side surface of the first turntable. A rotating rod is provided on the connecting shaft. The rotating rod is provided on the side of the first turntable where the obstacle components are provided. The rotating rod can rotate on the connecting shaft and move along the central axis of the connecting shaft.

[0008] Further, the obstacle component is composed of a support part made of a rigid material and a buffer part made of an elastic material. The shape of the buffer part is cylindrical, spherical, or mushroom-shaped. The heights of the plurality of obstacle components are different, and the spacings of the plurality of obstacle components are different.

[0009] Furthermore, the base includes a bottom surface and two side walls provided on both sides of the bottom surface. The side walls are fixedly connected to the bottom surface. At one end of the two side walls away from the bottom surface, there are depressions or small holes for arranging the connecting shaft.

[0010] Furthermore, the curvature of the depression or small hole is equal to the curvature of the cross-section of the connecting shaft. The connecting shaft and the base are fixedly connected by screws or nuts.

[0011] Furthermore, the first turntable and the rotating rod are arranged between the side walls. The length of the rotating rod is greater than the radius of the first turntable; the radius of the first turntable is less than the distance between the bottom surface and the connecting shaft.

[0012] Furthermore, the rotating rod includes a connecting rod. A contact part is fixedly provided at one end of the connecting rod. The contact part is detachably and fixedly connected to the connecting rod. A rotating connecting piece is fixedly provided at the other end of the connecting rod. The rotating connecting piece is sleeved on the connecting shaft.

[0013] Furthermore, a second turntable is provided on the side of the rotating rod away from the first turntable. The second turntable is fixedly provided on the connecting shaft.

[0014] Furthermore, the device further includes a guiding training component. The guiding training component has a cube structure.

[0015] Furthermore, convex structures or concave structures are provided on all six surfaces of the guiding training component.

[0016] Furthermore, the convex height of the convex structure and the concave depth of the concave structure are 0.5 mm - 1.0 mm.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: An obstacle component is provided on the turntable of the training device of the present invention. The connecting rod can move in the axial direction of the connecting shaft. The user holds the contact component, so that the connecting rod is controlled to move along the preset path of the obstacle component, thereby exercising the cooperative function between the wrist and elbow muscle groups. At the same time, the device does not include a driving device, and the user can actively exert force, which is beneficial to the recovery of the muscle contraction function. Therefore, the device of the present application has a good training effect on the cooperative function between muscle groups and the muscle contraction function. In addition, the device of the present invention is small in size and convenient for users to train at home. Description of the Drawings

[0018] Figure 1 Schematic diagram of a wrist and elbow training device provided in Embodiment 1 of the present invention;

[0019] Figure 2 Schematic diagram of a wrist and elbow training device provided in Embodiment 2 of the present invention;

[0020] Figure 3 Side view of a wrist and elbow training device provided in Embodiment 2 of the present invention;

[0021] Figure 4 Top view of a wrist and elbow training device provided in Embodiment 2 of the present invention.

[0022] Reference numerals: 1 - base; 2 - connecting shaft; 3 - first turntable; 4 - obstacle component; 5 - rotating rod; 6 - second turntable. Detailed Description of the Invention

[0023] In order to make the implementation process of the present invention clearer, the following will be described in detail with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] The present invention provides a wrist and elbow training device, as Figure 1As shown in the figure, the device includes a base 1, a connecting shaft 2, a first turntable 3, an obstacle assembly 4, and a rotating rod 5. The base 1 is a U-shaped bracket. Specifically, the base 1 consists of a bottom surface and two oppositely arranged side walls. At one end of the two side walls away from the bottom surface, there are grooves or small holes with the same height for setting the connecting shaft 2. The connecting shaft 2 passes through one end of the two side walls at the same time. The axial direction of the connecting shaft 2 forms equal angles with the plane where the two side walls are located and is parallel to the bottom surface. The connecting shaft 2 can rotate freely in the above-mentioned grooves or small holes, that is, the shape and size of the grooves or small holes match the cross-sectional shape of the connecting shaft 2, and their curvatures are almost equal. To prevent the connecting shaft 2 from falling off, fixing components such as screws and nuts are provided on one side or both sides of the connection between the connecting shaft 2 and the two side walls of the base 1, so that the connecting shaft 2 can rotate stably on the base 1. A first turntable 3 is fixedly arranged on the connecting shaft 2, and they are fixedly connected or detachably fixedly connected; preferably, the first turntable 3 is arranged close to the side wall of the base; the rotation center axis of the first turntable 3 coincides with the central axis of the connecting shaft 2. A plurality of obstacle assemblies 4 are arranged on the plane of the first turntable 3 close to the side wall with a relatively large distance. The obstacle assemblies 4 are detachably fixed on the first turntable 3. The number of the obstacle assemblies 4 needs to be greater than 6, so as to ensure that there can be more preset paths on the first turntable 3.

[0026] Specifically, the obstacle component 4 is detachably connected to the first turntable 3 by screws, and the interior of the obstacle component 4 near one end of the first turntable 3 is a hollow structure, so that a part of the length of the screws can be hidden in the obstacle component 4. By controlling the length of the screws and the angle with the first turntable 3, the height of the obstacle component 4 and the included angle between the central axis of the obstacle component 4 and the plane where the first turntable 3 is located can be adjusted. More specifically, the obstacle component 4 is composed of a support part near one end of the first turntable 3 and a buffer part far from one end of the first turntable 3, and the two are detachably and fixedly connected. The support part is made of a hard material, and its shape is thick at both ends and thin in the middle, and the cross-sectional shape is a rod-shaped ellipse. Specifically, the long axis direction of the ellipse is along the radius direction of the first turntable 3, and the short axis of the ellipse is along the direction perpendicular to the radius direction of the first turntable 3. In this way, on the one hand, while increasing the contact stability between the first turntable 3 and the obstacle component 4, the length in the direction perpendicular to the radius of the first turntable 3 is reduced, so that more obstacle components 4 can be arranged in this direction, thereby increasing the complexity of the training path; on the other hand, during the training process, the two side surfaces along the above-mentioned radius direction often rub against the connecting rod, and the distance between the two side surfaces is reduced, that is, the short axis of the above-mentioned ellipse is smaller than the long axis, so that the distance between the connecting rod and the two side surfaces of the obstacle component 4 is farther, thereby reducing the probability of friction between the two, making the obstacle component 4 not easily damaged. The size of the buffer part is 1.1 - 1.3 times the maximum cross-sectional size of the support part, and the material of the buffer part is an elastic material, such as rubber. In this way, when the connecting rod contacts the buffer part, the buffer part will deform, converting the kinetic energy during the collision between the connecting rod and the buffer part into the elastic potential energy of the buffer part. On the one hand, the sound during the collision between the connecting rod and the buffer part is reduced, playing a role in reducing noise; on the other hand, the kinetic energy is converted into the elastic potential energy of the buffer part, preventing the elastic collision of the connecting rod. The elastic collision of the connecting rod will be transmitted to the user's wrist. As the training time increases, the wrist will be hit multiple times, and long-term accumulation will cause harm to the user's wrist.

[0027] The spacing, height, and angle of the obstacle components 4 with respect to the first turntable 3 can be the same or different. Preferably, the buffer part of the obstacle component 4 is cylindrical, spherical, mushroom-shaped, etc., which is convenient for preparation; preferably, the spacings are not equal and random, the heights are not equal and random, the height is less than the length of the connecting shaft between the two side walls, and the angles with the first turntable 3 are not equal and randomly distributed. In this way, the formed path is more complex, and when the user uses it, more muscle groups can be involved, and the synergistic function between the muscle groups can be trained better. The height and angle of the obstacle component 4 are adjustable, which enables the device of the present invention to meet the needs of users with different training levels, which can be users with different training requirements, or different training intensity requirements of the same trainer at different times.

[0028] Specifically, for users who have just started training or those with a low training intensity, the angle between the central axis of the obstacle component 4 and the plane of the first turntable 3 can be adjusted to 90 degrees, that is, vertically arranged. The height of the obstacle component 4 is set to one-third to one-fourth of the length of the connecting shaft 2. In this way, the heights of the obstacle components 4 are basically the same, and the distance from the first turntable 3 is relatively close. There is no need for the rotating rod 5 to move significantly on the connecting shaft 2. The swing amplitude when passing through each obstacle component 4 in turn is similar and small. This requires less flexibility from the user and builds confidence to continue with rehabilitation training.

[0029] For users who have trained for a period of time, the height of the obstacle component 4 is adjusted from low to high and then from high to low. At least two such cycles are set on the first turntable 3, and the number of obstacle components 4 in each cycle is greater than 5. The gradual increase or decrease allows the user to gradually adapt to the height change of the obstacle component 4, that is, to control the front and back sliding of the rotating rod 5 on the connecting shaft 2, and the sliding distance gradually increases or decreases. At the same time, the height difference between the highest obstacle component 4 and the lowest obstacle component 4 is one-half of the length of the connecting shaft 2. This can ensure the height difference when bypassing each obstacle component 4 in turn, thus imposing certain requirements on the flexible control of the wrist and increasing the training intensity.

[0030] For users with higher requirements for training intensity, the heights of the obstacle components 4 are set to be staggered, that is, one high and one low, and the height of the lower group first gradually increases and then gradually decreases, and the height of the higher group also first gradually increases and then gradually decreases. The highest obstacle component 4 in the lower group is lower than the highest obstacle component 4 in the higher group. In this way, the user needs to precisely control the movement and rotation of the rotating rod. Since the height difference between adjacent obstacle components 4 is large, and the overall height of the obstacle components 4 shows a trend of first increasing and then decreasing, the user needs to more flexibly manipulate the rotating rod 5 to complete the training. Further, the included angle between the central axis of the obstacle component 4 and the plane where the first turntable 3 is located is not equal to 90 degrees, and both are inclined towards the side of the obstacle component 4 with a higher height. That is, the inclination angles of the two groups of obstacle components 4 with different heights are inclined towards the side with a higher height at the obstacle component 4 where the height gradually increases, and the closer to the highest component, the larger the inclination angle. At the obstacle component 4 where the height gradually decreases, it is also inclined towards the side with a higher height, and the closer to the highest component, the larger the inclination angle. In this way, the user needs to rotate the rotating rod 5 by a certain angle to bypass each obstacle component 4 on one side. When passing through the inclined obstacle component, the path of the rotating rod 5 is not parallel to the normal of the plane where the first turntable 3 is located, thereby increasing the difficulty of operation. The user needs to mobilize more small muscle groups to complete the training. Therefore, the higher the training level, the more muscle groups participate in the training, and the more the cooperation between muscles is required, thus the higher the requirement for the user's flexibility. The device of the present invention can meet the needs of users with different training intensities.

[0031] The obstacle component 4 can be arranged at the edge or inside of the first turntable 3. When arranged at the edge, users can easily observe the distribution of the obstacle component 4 and can easily complete the training. When arranged inside, on the one hand, the distance between the two side walls needs to be increased to ensure that users can clearly see the distribution of the obstacle component 4 inside. In addition, when arranged inside, only one obstacle component 4 can be arranged within a specific width (the sum of the minor axis of the cross-section of the support part and the cross-sectional diameter of the connecting rod) in the direction perpendicular to the diameter. Otherwise, if two obstacle components 4 are arranged simultaneously, the rotating rod 5 cannot rotate around a single obstacle component 4 in sequence, but can only rotate around two or more simultaneously. That is, the spacing between the obstacle components 4 needs to be greater than or equal to the radius of the connecting rod to enable the connecting rod to bypass each obstacle component 4 in sequence, thereby reducing the training effect. Preferably, the obstacle component 4 is arranged at the edge of the first turntable 3, so that the arc length is the longest, more obstacle components 4 can be arranged, and it is also convenient for users to observe the distribution of the obstacle component 4. The distance between two adjacent obstacle components 4 is based on the obstacle component 4 closer to the connecting shaft 2, and the distance along the arc direction is greater than the diameter of the rotating rod 5; only in this way can the rotating rod 5 move between the two obstacle components 4. The disk surface of the first turntable 3 can be any shape such as circular or rectangular. The distance from the farthest point from the central axis on the first turntable 3 is slightly less than the distance between the bottom surface of the base 1 and the connecting shaft 2 to facilitate the first turntable 3 rotating around the connecting shaft without touching the bottom surface.

[0032] The rotating rod 5 is composed of three components: a connecting rod, a contact part, and a rotating connecting piece. Specifically, a contact part is detachably and fixedly arranged at one end of the connecting rod, and a rotating connecting piece is fixedly arranged at the other end. The rotating rod 5 is rotatably connected to the connecting shaft 2 through the rotating connecting piece. Specifically, it is arranged between the first turntable 3 and the side wall far from the first turntable 3. More specifically, the rotating connecting piece is an annular object sleeved on the connecting shaft 2, which can enable the rotating rod 5 to rotate through a certain angle and can move along the direction of the connecting shaft. The length of the connecting rod is greater than the radius of the first turntable, which is convenient for users to grasp the contact part and rotate and move the rotating rod 5. The contact part can be spherical, and the contact part can be spherical with different radii, which is convenient to replace contact parts of different sizes according to the user's grasping force requirements. Generally speaking, a contact part with a smaller size is easier to train, while a contact part with a larger size is not easy to train. The contact part with a larger size has a better training effect on the stretching function of the palm.

[0033] During use, the user holds the contact component to control the front and back movement of the rotating rod 5 along the connecting shaft direction and the rotation around the connecting shaft, so that the rotating rod successively avoids the obstacle component 4. In order to successfully avoid the obstacle component 4, the user needs to frequently perform translation and rotation operations. The rapid alternation of translation and rotation requires the coordinated action of the upper arm muscle group, forearm muscle group, grip muscle group, and shoulder muscle group of the user. Specifically, the coordinated functions of the triceps brachii, biceps brachii, brachialis, extensor carpi ulnaris, flexor carpi radialis, extensor carpi ulnaris, flexor carpi, finger grasping muscle, levator scapulae, and rotator cuff muscle group are effectively exercised; at the same time, the user needs to actively exert force. Therefore, the device of the present application has a better training effect on the coordinated function between muscle groups and the muscle contraction function. During use, it can be rotated clockwise or counterclockwise, and can successively pass through multiple obstacle components 4 continuously, or can pass through one obstacle component 4 each time.

[0034] Embodiment 2:

[0035] On the basis of Embodiment 1, in order to increase the complexity of the path, the device of the present invention is also fixedly provided with a second turntable 6, which is arranged on one side close to the other side wall, as Figure 2 , Figure 3 , Figure 4 shown. The second turntable 6 is fixedly connected to the connecting shaft 2. The shapes of the second turntable 6 and the first turntable 3 can be the same or different. Preferably, the shapes and sizes of the second turntable 6 and the first turntable 3 are the same. The planes where the second turntable 6 and the first turntable 3 are located are parallel to each other. The rotation central axis of the second turntable 6 coincides with the rotation central axes of the connecting shaft 2 and the first turntable 3. The number of obstacle components 4 on the second turntable 6 and the number of obstacle components 4 on the first turntable 3 can be the same or different, and the height of the obstacle components 4 on the second turntable 6 and the height of the obstacle components 4 on the first turntable 3 can be the same or different; preferably, the number of obstacle components 4 on the second turntable 6 is the same as that on the first turntable 3, so that they are easily arranged in an interleaved manner; the height of the obstacle components 4 on the second turntable 6 is different from the height of the corresponding obstacle components 4 on the first turntable 3, so that the distance of the front and back movement along the connecting shaft 2 is different, and the muscle control of the user needs to be more complex, which can better train the coordinated function between muscle groups and thus improve the training effect.

[0036] Obstacle components 4 are also arranged on the side surface of the second turntable 6 opposite to the first turntable 3. In addition to meeting the requirements of the obstacle components 4 in Embodiment 1, the following conditions also need to be met: the relative positions of the obstacle components 4 on the second turntable 6 and the obstacle components 4 on the first turntable 3 are arranged in an interleaved manner. In this way, when in use, the rotating rod 5 needs to move back and forth along the axis more frequently, the control requirements for the user are higher, and the effect of coordinated training is better. In the present application, the second turntable 6 is detachably and fixedly connected to the connecting shaft 2, and the user can choose whether to add the second turntable 6 according to their own training situation.

[0037] Example 3:

[0038] Based on Example 1 or Example 2, the present application further includes a guiding training component. The guiding training component can give guidance on the rotation direction and the number of forward movements of the user. The guiding training component is in a cube structure, and convex structures or concave structures are provided on all six faces, and are all arranged at the center positions of the faces; specifically, the number of convex structures or concave structures is 1-6 respectively, and there are only convex structures or concave structures on a certain surface, and the opposite side faces are respectively provided with convex structures and concave structures, that is, one of the opposite side faces is a concave structure and the other is a convex structure; and the depth of the concave and the height of the convex are both relatively small, about 0.5 mm - 1.0 mm, so that the probability of a certain face of the guiding training component facing upwards will not become larger or smaller due to the setting of the convex structures and concave structures. In this way, the direction of rotating the rotating rod 5 can be determined according to the convex structure or concave structure on the upward side (just a habit, or it can be stipulated as the side in other certain directions), that is, corresponding to clockwise or counterclockwise respectively. Of course, specifically how to correspond can be stipulated by the user himself. The number of forward movements is determined according to the number of convex structures or concave structures on the above-mentioned characteristic side, so as to enhance the interest during the training process; during this process, the user can perform training on the wrist and elbow for left, right, forward, backward and rotation.

[0039] Example 4:

[0040] For stroke patients, performing multiple types of wrist activities simultaneously can effectively promote the cooperation between muscle groups and enhance the synergy between muscles. Further, on the basis of the above embodiments, the connecting rod can be set as a telescopic structure, and the telescopic structure can be a jointed telescopic structure similar to the structure of a suitcase pull rod. The control button is arranged on one side of the contact component. The user presses with the thumb to open the control button, and the connecting rod is in a telescopic state. The user can change the length of the connecting rod along the radial direction of the turntable, so as to increase the up-and-down movement during the rehabilitation training, and provide all-round training for the elbows and wrists of the rehabilitation training patients to meet the needs of diverse rehabilitation patients; when the control button is in the closed and locked state, it is almost the same as the device in Embodiments 1-3.

[0041] Furthermore, a gear-shaped concave-convex structure is provided on the side circumference of the connecting rod. At the same time, corresponding concave-convex structures are provided at one end of the obstacle component 4 away from the turntable. That is, the groove at the connecting rod can be engaged with the protruding structure on the obstacle component 4, and the protruding structure at the connecting rod can also be engaged with the groove on the obstacle component 4. After engagement, a certain angle of rotation can be achieved. The process of engagement and rotation both require flexible manipulation of the wrist, and at the same time, the task of advancing along the path formed by the obstacle component 4 needs to be completed. This increases the flexibility training of the wrist part, enables more small muscle groups to participate in the training, and enhances the synergistic interaction between muscles. The trainer can increase the number and position of the obstacle components 4 provided with concave-convex structures according to their own training needs.

[0042] In addition, the material of the contact component can be an elastic material. When the user holds the contact component, the force applied may not be uniform, and the contact component will deform to different degrees according to the different forces applied by the user, making the contact between the user's fingers and the contact component closer. The tiny muscles in the palm can be fully stretched and contracted, so that the tiny muscle groups in the palm can be fully trained, and the mutual cooperation function between muscles can be trained, which is beneficial to the synergistic rehabilitation training of stroke patients. The material of the contact component being an elastic material can further reduce the damage to the user's wrist caused by the collision kinetic energy between the connecting rod and the obstacle component 4. Specifically, the elastic contact component converts a part of the kinetic energy of the connecting rod into elastic potential energy, playing a buffering role and preventing the risk of damage to the user's wrist.

[0043] Finally, it should be noted that the components of the device of the present invention can be disassembled and assembled. The user can assemble and disassemble them by themselves, and the fixed connection is a threaded connection. This can exercise the simple logic of the patient's brain and also increase the strength of the hands, wrists, and elbows and stretch and exercise the muscle groups.

[0044] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wrist and elbow training device, the device comprising a base, a connecting shaft is arranged on the base, the connecting shaft is fixed on the base, and the connecting shaft can rotate around its central axis. Characterized in that A first turntable is fixedly arranged on the connecting shaft; the first turntable rotates together with the connecting shaft, and a plurality of obstacle components are fixedly arranged on one side surface of the first turntable; a rotating rod is arranged on the connecting shaft, the rotating rod is arranged on the side of the first turntable where the obstacle components are arranged, and the rotating rod can rotate on the connecting shaft and move along the central axis of the connecting shaft; a second turntable is arranged on the side of the rotating rod away from the first turntable, the second turntable is fixedly arranged on the connecting shaft, and the obstacle components are also arranged on the side surface of the second turntable opposite to the first turntable; The relative positions of the obstacle components on the second turntable and the obstacle components on the first turntable are staggered.

2. The wrist and elbow training device according to claim 1, Characterized in that The obstacle component is composed of a support part made of a rigid material and a buffer part made of an elastic material, the shape of the buffer part is cylindrical, spherical or mushroom-shaped, the heights of the plurality of obstacle components are different, and the distances between the plurality of obstacle components are different.

3. The wrist and elbow training device according to claim 2, Characterized in that The base includes a bottom surface and two side walls arranged on both sides of the bottom surface, the side walls are fixedly connected to the bottom surface, and depressions or small holes for arranging the connecting shaft are arranged at one ends of the two side walls away from the bottom surface.

4. The wrist and elbow training device according to claim 3, Characterized in that The curvature of the depression or small hole is equal to the curvature of the cross section of the connecting shaft, and the connecting shaft is fixedly connected to the base by screws or nuts.

5. The wrist and elbow training device according to claim 4, Characterized in that The first turntable and the rotating rod are arranged between the side walls, the length of the rotating rod is greater than the radius of the first turntable; the radius of the first turntable is less than the distance between the bottom surface and the connecting shaft.

6. The wrist and elbow training device according to claim 5, Characterized in that The rotating rod includes a connecting rod, a contact part is fixedly arranged at one end of the connecting rod, the contact part is detachably and fixedly connected to the connecting rod, and a rotating connecting part is fixedly arranged at the other end of the connecting rod, and the rotating connecting part is sleeved on the connecting shaft.

7. The wrist and elbow training device according to any one of claims 1-6, Characterized in that The device further includes a guiding training component, and the guiding training component is of a cube structure.

8. The wrist and elbow training device according to claim 7, Characterized in that Protrusion structures or depression structures are arranged on six surfaces of the guiding training component.

9. The wrist and elbow training device according to claim 8, Characterized in that The protrusion height of the protrusion structure and the depression depth of the depression structure are 0.5 mm - 1.0 mm.

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