Transmission structure and ankle joint trainer

Abstract

The application relates to the technical field of rehabilitation aids, and particularly provides a transmission structure and an ankle joint training device. The transmission structure comprises a motor, a horizontal bevel gear, one end of the horizontal bevel gear being in transmission connection with the motor, a vertical bevel gear, one end of the vertical bevel gear being in meshing connection with the horizontal bevel gear, and the other end of the vertical bevel gear being arranged as a transmission end. By adopting the bevel gear component, the power of the motor can be bent by 90 degrees for transmission, the existing chain belt transmission or shaft stick transmission structure is effectively and stably replaced, the volume of the transmission structure is effectively reduced, and the stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rehabilitation aids, in particular to a transmission structure and an ankle joint training device. BACKGROUND

[0002] The ankle joint is an important bone joint of the human body, and its accessories include numerous foot bones and numerous muscles. For a body with limited movement, especially for a body that has lost the ability to move independently for a short or long period of time, the ankle joint will be inactive for a long time, which will cause the ankle joint function to degenerate, joint effusion, and a series of problems such as associated muscle atrophy. At present, in order to help users train the ankle joint, ankle joint rehabilitation aids have appeared. However, the existing ankle joint not only needs to fix the user's feet and legs, but also needs to assist the relative movement of the feet and the legs, thereby training the ankle joint. This results in a complex structure and a large space occupied by the transmission structure of the existing ankle joint rehabilitation aid, which leads to a large space occupied in actual use and inconvenient assembly, resulting in the inconvenience of using the existing ankle joint rehabilitation aid.

[0003] Therefore, the existing technology has defects and deficiencies, and needs to be further improved and developed. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a transmission structure and an ankle joint training device, which aims to solve the problem of complex structure and large space occupation of the ankle joint training device in the prior art.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a transmission structure for an ankle joint training device, comprising:

[0006] a motor;

[0007] a horizontal bevel gear, one end of which is in transmission connection with the motor;

[0008] a vertical bevel gear, one end of which is in meshing connection with the horizontal bevel gear, and the other end of which is provided as a transmission end.

[0009] Optionally, the vertical bevel gear comprises:

[0010] a vertical cone body, which is in meshing connection with the horizontal bevel gear;

[0011] a main transmission shaft, which is coaxially arranged with the vertical cone body, and the transmission end is arranged at one end of the main transmission shaft away from the vertical cone body;

[0012] a spline shaft synchronizing part, which is arranged at one end of the vertical cone body away from the main transmission shaft, and is limitingly arranged along the circumferential direction with the vertical cone body and the main transmission shaft;

[0013] A vertical taper bearing is sleeved on the main transmission shaft.

[0014] Optionally, the tooth shaft synchronizer comprises:

[0015] A clamping shaft, one end of which is connected to the main transmission shaft in the circumferential direction;

[0016] A clamping sleeve, which is arranged on the clamping shaft and is connected to the clamping shaft in the circumferential direction; and the clamping sleeve is connected to the one end of the vertical taper body away from the main transmission shaft in the circumferential direction and the axial direction.

[0017] Optionally, the clamping shaft comprises:

[0018] A clamping shaft body;

[0019] A circumferential limiting key arranged on the end surface of the clamping shaft body facing the main transmission shaft;

[0020] The tooth shaft synchronizer further comprises a main shaft locking bolt, an axial locking through hole is formed at the shaft center of the clamping shaft body, the main shaft locking bolt is screwed into the locking through hole, and is screwed with the main transmission shaft.

[0021] Optionally, the clamping sleeve comprises:

[0022] A clamping sleeve body, which is provided with a sleeving hole and a disconnecting opening communicating with the sleeving hole, and the clamping sleeve body is screwed with the vertical taper body;

[0023] A locking adjusting part arranged on both sides of the disconnecting opening;

[0024] A locking adjusting bolt screwed into the locking adjusting part;

[0025] A first circumferential limiting part protruding from the end surface of the locking adjusting part facing the vertical taper body;

[0026] A second circumferential limiting part protruding from the end surface of the clamping sleeve body away from the locking adjusting bolt facing the vertical taper body;

[0027] The vertical taper body is provided with a first limiting groove and a second limiting groove, the first circumferential limiting part is connected with the first limiting groove, and the second circumferential limiting part is connected with the second limiting groove.

[0028] Optionally, the main transmission shaft comprises:

[0029] The transmission shaft body, the vertical taper bearing sleeve is arranged on the transmission shaft body, the transmission end is arranged at one end of the transmission shaft body away from the vertical taper body, and is used for driving connection of a foot bearing structure of an ankle joint trainer;

[0030] The vertical taper connecting end is arranged at one end of the transmission shaft body towards the vertical taper body, the vertical taper connecting end is provided with a circumferential limiting groove matched with the circumferential limiting key, and the vertical taper connecting end is further screwed with the main shaft locking bolt.

[0031] Optionally, the motor comprises:

[0032] The motor body is provided with a fixed lug on both sides of one end of the motor body;

[0033] The two L-shaped supports are connected to one of the fixed lugs one by one at one end of the L-shaped supports;

[0034] The shaft coupling is connected to the motor body at one end, and the other end of the shaft coupling is connected to the horizontal bevel gear.

[0035] Optionally, the horizontal bevel gear comprises:

[0036] The bearing seat;

[0037] The flat taper body comprises a flat shaft segment and a vertical taper gear segment which are integrally formed and coaxially arranged;

[0038] The flat taper bearing is arranged on the bearing seat, and the flat shaft segment is fixed on the flat taper bearing;

[0039] The flat taper body rotates relative to the bearing seat through the flat taper bearing, one end of the flat shaft segment away from the vertical taper gear segment is connected to the motor, and the vertical taper gear segment is arranged on the side of the bearing seat away from the motor.

[0040] Optionally, the transmission structure further comprises a bearing plate, and the bearing plate comprises:

[0041] The plate body;

[0042] The motor mounting portion is arranged at one end of the plate body, and the motor is mounted at the motor mounting portion;

[0043] The flat taper mounting portion is arranged on the plate body on one side of the motor mounting portion, the horizontal bevel gear is rotationally connected to the flat taper mounting portion, and is arranged in parallel with the plate body;

[0044] A vertical taper mounting portion is arranged on the plate body on the side away from the motor mounting portion, is rotationally connected at the vertical taper mounting portion, and is arranged perpendicularly to the plate body.

[0045] Another technical solution adopted by the application to solve the technical problem is as follows: a foot and ankle joint training device comprising the transmission structure as described above.

[0046] Beneficial effects:

[0047] The transmission structure and the foot and ankle joint training device provided in the application can effectively and stably replace the existing chain transmission or shaft stick transmission structure by adopting the bevel gear component, effectively reducing the volume of the transmission structure, and improving the stability. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 is a perspective structural schematic view of the transmission structure provided in the application;

[0049] Figure 2 is an exploded perspective structural schematic view of the transmission structure provided in the application;

[0050] Figure 3 is an axial sectional view of the clamping shaft of the tooth shaft synchronizing component of the vertical bevel gear of the transmission structure provided in the application;

[0051] Figure 4 is a side view of the clamping sleeve of the tooth shaft synchronizing component of the vertical bevel gear of the transmission structure provided in the application;

[0052] Figure 5 is a perspective structural schematic view of the bearing plate of the transmission structure provided in the application;

[0053] Explanation of reference signs:

[0054] 10, transmission structure; 11, motor; 12, horizontal bevel gear; 13, vertical bevel gear; 14, transmission end; 15, bearing plate; 111, motor body; 112, L-shaped support; 113, shaft coupling; 1111, fixed lug; 121, bearing seat; 122, flat bevel body; 123, flat bevel bearing; 1221, flat shaft section; 1222, vertical bevel gear section; 131, vertical bevel body; 132, main transmission shaft; 133, spline shaft synchronizer; 134, vertical bevel bearing; 1311, first limiting groove; 1312, second limiting groove; 1331, clamping shaft; 1332, clamping sleeve; 1333, main shaft locking bolt; 131a, clamping shaft body; 131b, circumferential limiting key; 131c, locking through hole; 132a, clamping sleeve body; 132b, sleeving hole; 132c, disconnecting opening; 132d, locking adjusting part; 132e, locking adjusting bolt; 132f, first circumferential limiting part; 132g, second circumferential limiting part; 1321, transmission shaft body; 1322, vertical bevel connecting end; 1323, circumferential limiting groove; 151, plate body; 152, motor mounting part; 153, flat bevel mounting part; 154, vertical bevel mounting part. DETAILED DESCRIPTION

[0055] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0057] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] Please refer to Figure 1 In the first embodiment of the present application, a transmission structure 10 for ankle joint trainer is provided, the transmission structure 10 comprises: a motor 11, a horizontal bevel gear 12 and a vertical bevel gear 13; one end of the horizontal bevel gear 12 is in driving connection with the motor 11; one end of the vertical bevel gear 13 is in meshing with the horizontal bevel gear 12, and the other end of the vertical bevel gear 13 is provided as a transmission end 14; the transmission end 14 is used for connecting a foot bearing structure of the ankle joint trainer. It can be known that by adopting the bevel gear components, and by arranging two groups of vertical and meshing bevel gear components, the power of the motor 11 can be bent by 90 degrees for transmission, which effectively and stably replaces the existing chain belt transmission or shaft stick transmission structure 10, effectively reduces the volume of the transmission structure 10, and improves the stability.

[0059] Please refer to Figure 2 In some embodiments, the vertical bevel gear 13 comprises: a vertical bevel body 131, a main transmission shaft 132, a gear shaft synchronizing part 133 and a vertical bevel bearing 134; the vertical bevel body 131 is in meshing with the horizontal bevel gear 12; the main transmission shaft 132 is coaxially arranged with the vertical bevel body 131, and the transmission end 14 is arranged at one end of the main transmission shaft 132 away from the vertical bevel body 131; the gear shaft synchronizing part 133 is arranged at one end of the vertical bevel body 131 away from the main transmission shaft 132, and is limitingly arranged along the circumferential direction with the vertical bevel body 131 and the main transmission shaft 132; and the vertical bevel bearing 134 is sleeved on the main transmission shaft 132.

[0060] It can be known that the horizontal bevel gear 12 transmits the power of the motor 11 to the vertical bevel body 131, the vertical bevel body 131 realizes synchronous rotation with the main transmission shaft 132 through the gear shaft synchronizing part 133, and then transmits the power of the motor 11 to the main transmission shaft 132, the main transmission shaft 132 stably drives the foot bearing structure connected with the ankle joint trainer to rotate under the assistance of the vertical bevel bearing 134, and then exercises the ankle joint and related tissues.

[0061] Please refer to Figures 2 to 4In some embodiments, the pinion shaft synchronizer 133 comprises a clamping shaft 1331 and a clamping sleeve 1332. One end of the clamping shaft 1331 is connected to the main transmission shaft 132 in the circumferential direction, that is, the clamping shaft 1331 and the main transmission shaft 132 rotate synchronously. The clamping sleeve 1332 is arranged on the clamping shaft 1331 and is connected to the clamping shaft 1331 in the circumferential direction, that is, the clamping sleeve 1332, the clamping shaft 1331 and the main transmission shaft 132 rotate synchronously. The clamping sleeve 1332 is connected to one end of the vertical taper body 131 away from the main transmission shaft 132 in the circumferential direction and the axial direction, that is, the clamping sleeve 1332 rotates synchronously with the vertical taper body and is connected to the vertical taper body in the axial direction. In turn, the clamping sleeve 1332, the clamping shaft 1331, the main transmission shaft 132 and the vertical taper body 131 rotate synchronously. The horizontal bevel gear 12 transmits the power of the motor 11 to the vertical taper body 131, the vertical taper body 131 transmits the power of the motor 11 to the clamping sleeve 1332, the clamping sleeve 1332 transmits the power of the motor 11 to the clamping shaft 1331, and the clamping shaft 1331 transmits the power of the motor 11 to the main transmission shaft 132. The main transmission shaft 132 is smoothly driven to rotate the foot bearing structure connected to the ankle joint trainer with the assistance of the vertical taper bearing 134, thereby training the ankle joint and related tissues. It should be noted that the pinion shaft synchronizer 133 can also be used to conveniently adjust the initial angle of the main transmission shaft 132 during production and assembly, thereby facilitating the assembly of the transmission structure and the ankle joint trainer.

[0062] Please refer to Figure 2 and Figure 3 In some embodiments, the clamping shaft 1331 comprises a clamping shaft body 131a and a circumferential limiting key 131b. The circumferential limiting key 131b is arranged on the end surface of the clamping shaft body 131a facing the main transmission shaft 132. It can be seen that the clamping shaft body 131a and the clamping sleeve 1332 are connected in the circumferential direction, and the clamping shaft body 131a is connected to the main transmission shaft 132 in the circumferential direction through the circumferential limiting key 131b, thereby ensuring the synchronous rotation of the clamping shaft body 131a and the main transmission shaft 132 in the circumferential direction.

[0063] Further, the pinion shaft synchronous part 133 further comprises a main shaft locking bolt 1333, an axial locking through hole 131c is arranged at the shaft center of the clamping shaft body 131a in the axial direction, the main shaft locking bolt 1333 is screwed in the axial locking through hole 131c and is screwed with the main transmission shaft 132; it can be known that the axial extension length of the axial locking through hole 131c is less than the axial extension length of the main shaft locking bolt 1333, the main shaft locking bolt 1333 is screwed with the main transmission shaft 132 after passing through the axial locking through hole 131c, and then the clamping shaft 1331 and the main transmission shaft 132 are limited and fixed in the axial direction, so as to prevent the clamping shaft 1331 from being separated from the main transmission shaft 132 in the axial direction during rotation, causing the transmission structure 10 to lose the ability; it should be noted that due to the action of the circumferential limiting key 131b arranged on the clamping shaft body 131a, the clamping shaft body 131a and the main transmission shaft 132 rotate synchronously in the circumferential direction, the main shaft locking bolt 1333 also rotates synchronously with the clamping shaft body 131a and the main transmission shaft 132 in the circumferential direction, and will not relatively rotate with any one of the clamping shaft body 131a and the main transmission shaft 132 in the circumferential direction, thereby realizing the stable transmission connection between the clamping shaft 1331 and the main transmission shaft 132 by a simple and small screwing structure

[0064] Please refer to Figure 2 and Figure 4In some embodiments, the clamping sleeve 1332 comprises a clamping sleeve body 132a, a locking adjusting part 132d, a locking adjusting bolt 132e, a first circumferential limiting part 132f and a second circumferential limiting part 132g. The clamping sleeve body 132a is provided with a sleeving hole 132b and a disconnection opening 132c in communication with the sleeving hole 132b. The clamping sleeve body 132a is screwed with the vertical taper body 131, and thus the clamping sleeve body 132a is simultaneously limited and connected with the vertical taper body 131 in the axial and circumferential directions. As can be seen, the clamping sleeve body 132a is provided with a sleeving hole 132b in the axial direction. The clamping shaft 1331 is accommodated in the sleeving hole 132b. The clamping sleeve body 132a outside the sleeving hole 132b is provided with a disconnection opening 132c. Thus, when the clamping shaft 1331 is sleeved, the hole diameter of the sleeving hole 132b can be adjusted through the disconnection opening 132c, facilitating the sleeving of the clamping shaft 1331. The locking adjusting part 132d is arranged on both sides of the disconnection opening 132c. The locking adjusting bolt 132e is screwed at the locking adjusting part 132d. As can be seen, by arranging the locking adjusting part 132d on both sides of the disconnection opening 132c, for example, arranging the locking adjusting part 132d as a threaded hole matched with the locking adjusting bolt 132e, and then after the clamping sleeve 1332 is sleeved on the clamping shaft 1331, the hole diameter of the sleeving hole 132b can be adjusted again through the locking adjusting part 132d and the locking adjusting bolt 132e, so that the clamping sleeve body 132a is further clamped on the clamping shaft 1331. The first circumferential limiting part 132f is protruded on the end face of the locking adjusting part 132d facing the vertical taper body 131. The second circumferential limiting part 132g is protruded on the end face of the clamping sleeve body 132a facing away from the locking adjusting bolt 132e and facing the vertical taper body 131. The vertical taper body 131 is provided with a first limiting groove 1311 and a second limiting groove 1312. The first circumferential limiting part 132f is clamped with the first limiting groove 1311. The second circumferential limiting part 132g is clamped with the second limiting groove 1312. As can be seen, the first circumferential limiting part 132f and the second circumferential limiting part 132g are arranged on both sides of the sleeving hole 132b, thereby improving the stability of the limiting connection of the clamping sleeve body 132a and the vertical taper body 131 in the circumferential direction.

[0065] Please refer to Figure 2In some embodiments, the main transmission shaft 132 comprises a transmission shaft body 1321 and a vertical taper connecting end 1322; the vertical taper bearing 134 is sleeved on the transmission shaft body 1321, the transmission end 14 is arranged at one end of the transmission shaft body 1321 away from the vertical taper body 131, and is used for driving connection of a foot bearing structure of an ankle joint trainer; the vertical taper connecting end 1322 is arranged at one end of the transmission shaft body 1321 towards the vertical taper body 131, the vertical taper connecting end 1322 is provided with a circumferential limiting groove 1323 matched with the circumferential limiting key 131b, and the vertical taper connecting end 1322 is also screwed with the main shaft locking bolt 1333. It can be known that the transmission shaft body 1321 finally transmits the power of the motor 11 to the foot bearing structure of the ankle joint trainer, and the kinetic energy transmission of the ankle joint trainer is realized simply and in small size.

[0066] Please refer to Figure 1 and Figure 2 In some embodiments, the motor 11 comprises a motor body 111, two L-shaped supports 112 and a shaft coupling 113; both sides of one end of the motor body 111 are provided with fixed lugs 1111; one end of each of the L-shaped supports 112 is connected with one of the fixed lugs 1111; one end of the shaft coupling 113 is connected with the motor body 111, and the other end of the shaft coupling 113 is connected with the horizontal bevel gear 12. It can be known that by arranging the two L-shaped supports 112 and the two fixed lugs 1111, the assembly stability of the motor 11 can be improved, and the motor 11 is prevented from shaking.

[0067] Please refer to Figure 1 and Figure 2 In some embodiments, the horizontal bevel gear 12 comprises a bearing seat 121, a horizontal taper body 122 and a horizontal taper bearing 123; the horizontal taper body 122 comprises a horizontal shaft segment 1221 and a vertical taper tooth segment 1222 which are integrally formed and coaxially arranged; the horizontal taper bearing 123 is arranged on the bearing seat 121, and the horizontal shaft segment 1221 is fixed on the horizontal taper bearing 123; wherein the horizontal taper body 122 rotates relative to the bearing seat 121 through the horizontal taper bearing 123, one end of the horizontal shaft segment 1221 away from the vertical taper tooth segment 1222 is connected with the motor 11, and the vertical taper tooth segment 1222 is arranged on the side of the bearing seat 121 away from the motor 11. It can be known that the motor 11 drives the horizontal shaft segment 1221 to rotate synchronously, the horizontal shaft segment 1221 drives the horizontal taper body 122 to rotate synchronously under the assistance of the horizontal taper bearing 123, and then the power of the motor 11 is stably transferred.

[0068] Please refer to Figure 2 and Figure 5In some embodiments, the transmission structure 10 further comprises a bearing plate 15 for bearing the motor 11, the horizontal bevel gear 12 and the vertical bevel gear 13; the bearing plate 15 comprises a plate body 151, a motor mounting portion 152, a horizontal bevel mounting portion 153 and a vertical bevel mounting portion 154; the motor mounting portion 152 is arranged at one end of the plate body 151, and the motor 11 is mounted at the motor mounting portion 152; specifically, the other ends of the two L-shaped supports 112 are both mounted at the motor mounting portion 152; the horizontal bevel mounting portion 153 is arranged on the plate body 151 at one side of the motor mounting portion 152, the horizontal bevel gear 12 is rotationally connected at the horizontal bevel mounting portion 153 and is arranged in parallel with the plate body 151; specifically, the horizontal shaft section 1221 is arranged in parallel with the horizontal bevel mounting portion 153; the vertical bevel mounting portion 154 is arranged on the plate body 151 at the side of the horizontal bevel mounting portion 153 away from the motor mounting portion 152, the vertical bevel gear 13 is rotationally connected at the vertical bevel mounting portion 154 and is arranged perpendicularly to the plate body 151; specifically, the vertical bevel mounting portion 154 is arranged as a protruding circular tube structure, the vertical bevel bearing 134 is fixed in the circular tube structure, and the main transmission shaft 132 passes through the vertical bevel bearing 134 and the vertical bevel mounting portion 154, thereby rotating relative to the vertical bevel mounting portion 154 through the vertical bevel bearing 134.

[0069] In the second embodiment of the present application, an ankle joint trainer is provided, which comprises the transmission structure 10 as described in the first embodiment of the present application. It can be known that the ankle joint trainer effectively realizes miniaturized design by adopting the transmission structure 10 provided in the present application, thereby improving the practicability and convenience of the ankle joint trainer.

[0070] In summary, in the present application, a transmission structure and an ankle joint trainer are provided, the transmission structure comprising: a motor; a horizontal bevel gear, one end of which is in transmission connection with the motor; a vertical bevel gear, one end of which is in meshing with the horizontal bevel gear, and the other end of which is arranged as a transmission end. By adopting the bevel gear component, the power of the motor can be bent by 90 degrees for transmission, effectively and stably replacing the existing chain belt transmission or shaft stick transmission structure, effectively reducing the volume of the transmission structure, and improving the stability.

[0071] It should be understood that the application of the present application is not limited to the above examples, and those of ordinary skill in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the present application.

Claims

1. A transmission structure for an ankle joint trainer, characterized by, Comprise: Motor; Horizontal bevel gear, one end of the horizontal bevel gear is drivingly connected with the motor; Vertical bevel gear, one end of the vertical bevel gear is engaged with the horizontal bevel gear, the other end of the vertical bevel gear is provided as a driving end; The vertical bevel gear comprises: Vertical cone body, the vertical cone body is engaged with the horizontal bevel gear; Main transmission shaft, the main transmission shaft is coaxially arranged with the vertical cone body, the driving end is arranged at one end of the main transmission shaft away from the vertical cone body; Spline shaft synchronizer, the spline shaft synchronizer is arranged at one end of the vertical cone body away from the main transmission shaft, and is circumferentially limited with the vertical cone body and the main transmission shaft; Vertical cone bearing, the vertical cone bearing is sleeved on the main transmission shaft; The spline shaft synchronizer comprises: Clamping shaft, one end of the clamping shaft is circumferentially limited with the main transmission shaft; Clamping sleeve, the clamping sleeve is arranged on the clamping shaft and is circumferentially limited with the clamping shaft; and the clamping sleeve is circumferentially and axially limited with one end of the vertical cone body away from the main transmission shaft; The main transmission shaft is smoothly driven to rotate the foot bearing structure connected with the ankle joint trainer under the assistance of the vertical cone bearing, so as to train the ankle joint and related tissues; The clamping shaft comprises: Clamping shaft body; Circumferential limiting key, the circumferential limiting key is arranged on the end face of the clamping shaft body towards the main transmission shaft; The spline shaft synchronizer further comprises a main shaft locking bolt, an axial locking through hole is formed at the shaft center of the clamping shaft body, the main shaft locking bolt is screwed in the locking through hole and is screwed with the main transmission shaft; The clamping sleeve comprises: Clamping sleeve body, the clamping sleeve body is provided with a sleeving hole and a disconnecting opening communicated with the sleeving hole, the clamping sleeve body is screwed with the vertical cone body; Locking adjusting part, the locking adjusting part is arranged on both sides of the disconnecting opening; Locking adjusting bolt, the locking adjusting bolt is screwed in the locking adjusting part; First circumferential limiting part, the first circumferential limiting part is protruded on the end face of the locking adjusting part towards the vertical cone body; Second circumferential limiting part, the second circumferential limiting part is protruded on the end face of the clamping sleeve body away from the locking adjusting bolt towards the vertical cone body; The vertical cone body is provided with a first limiting groove and a second limiting groove, the first circumferential limiting part is clamped with the first limiting groove, and the second circumferential limiting part is clamped with the second limiting groove.

2. The transmission arrangement of claim 1, wherein The main transmission shaft comprises: Transmission shaft body, the vertical cone bearing is sleeved on the transmission shaft body, the driving end is arranged at one end of the transmission shaft body away from the vertical cone body, for driving connection with the foot bearing structure of the ankle joint trainer; Vertical cone connecting end, the vertical cone connecting end is arranged at one end of the transmission shaft body towards the vertical cone body, the vertical cone connecting end is provided with a circumferential limiting groove matched with the circumferential limiting key, and the vertical cone connecting end is further screwed with the main shaft locking bolt.

3. Transmission arrangement according to any of claims 1-2, characterized in that, The motor comprises: Motor body, the motor body is provided with a fixed lug on both sides of one end; Two L-shaped supports, one end of the L-shaped supports is connected with one of the fixing lugs one by one; A shaft coupling, one end of the shaft coupling is connected with the motor body, and the other end of the shaft coupling is connected with the horizontal bevel gear.

4. A transmission arrangement according to any one of claims 1-2, characterized in that The horizontal bevel gear comprises: A bearing seat; A flat-cone body, the flat-cone body comprises a flat shaft segment and a vertical bevel gear segment which are integrally formed and coaxially arranged; A flat-cone bearing, the flat-cone bearing is arranged on the bearing seat, and the flat shaft segment is fixed on the flat-cone bearing; Wherein, the flat-cone body rotates relative to the bearing seat through the flat-cone bearing, one end of the flat shaft segment away from the vertical bevel gear segment is connected with the motor, and the vertical bevel gear segment is arranged on the side of the bearing seat away from the motor.

5. A transmission arrangement according to any one of claims 1-2, characterized in that The transmission structure further comprises a bearing plate, the bearing plate comprises: A plate body; A motor mounting portion, the motor mounting portion is arranged at one end of the plate body, and the motor is mounted at the motor mounting portion; A flat-cone mounting portion, the flat-cone mounting portion is arranged on the plate body on one side of the motor mounting portion, the horizontal bevel gear is rotatably connected at the flat-cone mounting portion and is arranged in parallel with the plate body; A vertical-cone mounting portion, the vertical-cone mounting portion is arranged on the plate body on one side of the flat-cone mounting portion away from the motor mounting portion, the vertical bevel gear is rotatably connected at the vertical-cone mounting portion and is arranged perpendicularly to the plate body.

6. An ankle joint trainer characterized by The transmission structure comprises any one of claims 1-5.

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