Ankle-foot postoperative training device

Abstract

The present application relates to the technical field of foot and ankle rehabilitation, and specifically discloses a postoperative training device for foot and ankle, which comprises a support, and further comprises: a limiting assembly arranged on both sides of the handle, the limiting assembly being used for limiting the rotation amplitude of the handle; and a regulating assembly arranged on the lower side of the seat cushion, the regulating assembly being used for further regulating the limiting of the handle by the limiting assembly. The limiting assembly can limit the rotation amplitude of the handle, preventing the patient from exerting too much force on the handle, so that the handle rotates too much, the pedal drives the foot and ankle to rotate too much, and the foot and ankle is damaged. The limiting assembly can flexibly regulate the limitation of the rotation amplitude of the handle according to the foot length of different patients, thereby increasing the practicability of the device. The regulating assembly can further regulate the limiting of the handle by the limiting assembly according to the body weight of different patients, so as to further meet the use of different patients and increase the applicability.

Description

Technical Field

[0001] This invention relates to the field of foot and ankle rehabilitation technology, specifically to a postoperative training device for the foot and ankle. Background Technology

[0002] Postoperative training devices for the foot and ankle are assistive devices specifically designed for rehabilitation training after foot and ankle surgery. These devices aim to help patients restore foot and ankle function, strengthen muscles, improve joint flexibility, and reduce postoperative pain and swelling. After foot and ankle joint injury, prolonged inactivity can lead to joint adhesions and muscle atrophy. Therefore, during the physical therapy phase, rehabilitation training needs to be carried out with the assistance of manual or machine assistance.

[0003] When patients undergo postoperative rehabilitation training of the foot and ankle using an ankle joint trainer, they sit on the seat of the trainer and place their feet on the pedals. By pulling the handles back and forth, the pedals rotate, thus training the ankle joint. However, during this process, the patient may pull the handles back and forth with a large amplitude, causing the pedals to rotate the foot and ankle with a large amplitude, which may lead to injury to the foot and ankle during training. Therefore, we propose a postoperative training device for the foot and ankle. Summary of the Invention

[0004] The purpose of this invention is to provide a postoperative foot and ankle training device to solve the problem mentioned in the background art, where patients may rotate their hands back and forth with a large amplitude when using an ankle joint trainer, which may lead to foot and ankle injuries during training.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a postoperative training device for the foot and ankle, comprising: a support, a movable frame disposed on one side of the support, a backrest and a seat cushion disposed on the movable frame, handles symmetrically disposed on one side of the support, and pedals symmetrically disposed on the other side of the support, with straps disposed on the pedals.

[0006] It also includes: a limiting component, which is located on both sides of the handle and is used to limit the rotation range of the handle;

[0007] The adjustment component is located under the seat plate and is used to further adjust the limit component's limit on the handle.

[0008] The limiting component includes a connector that slides with the pedal, a pressure plate is fixed at the upper end of the connector, a first spring is fixed between the connector and the pedal, a sliding member is symmetrically slidably arranged on the pedal, and through slots are symmetrically opened on the pedal.

[0009] The connector has symmetrical sleeves on both sides, and slide rods are slidably mounted on both sides of the sleeves. The lower slide rod is rotatably mounted to the connector, and the upper slide rod is rotatably mounted to the lower side of the slide. A first L-shaped rod fixed to the pedal is rotatably mounted on the sleeve.

[0010] The connector has a pressure rod abutting against its lower side, and a second spring is symmetrically arranged on the pressure rod. The upper end of the second spring is fixed with a fixing block that is fixed to the support. The other end of the pressure rod is fixed with a first rack, which is meshed with a first gear. Connecting plates are fixed on both sides of the support. A first support rod that rotates with the connecting plate is fixed in the middle of the first gear. A first bevel gear is fixed on the first support rod.

[0011] The connecting plate has a second support rod rotatably mounted on its upper side. From top to bottom, the second support rod is fixed with a limiting toothed ring, a second gear, and a second bevel gear. The second bevel gear meshes with the first bevel gear. Both sides of the second gear are meshed with second racks. The two second racks are slidably fitted with second sleeves. The first rack is slidably fitted with a first sleeve. One side of the connecting plate is fixed with a bracket that is fixed to the first sleeve and one side of the second sleeve. The lower side of the other side of the second sleeve is fixed with a second L-shaped rod that is fixed to the connecting plate.

[0012] Each of the two second racks has a support rod fixed on one side, a limiting block fixed on the support rod, a limiting tooth block on one side of the limiting tooth ring, a third L-shaped rod fixed on one side of the limiting tooth block and slidably disposed with the connecting plate, a third spring fixed on one side of the third L-shaped rod, and a connecting block fixed on the connecting plate on one side of the third spring.

[0013] Among them, a connecting rod is fixedly provided on the other side of the limiting tooth block, and a fixed rod fixed to the backrest is slidably provided on one side of the connecting rod. A fastening screw is threaded on the fixed rod. A first telescopic column fixed to the moving frame is symmetrically fixed on one side of the backrest, and a fourth spring sleeved on the outside of the first telescopic column is symmetrically fixed between the backrest and the moving frame.

[0014] The control component includes a guide rod fixed to the support, a third sliding sleeve symmetrically slidably mounted on the guide rod, a fifth spring fixed to one side of the third sliding sleeve and fixed to the guide rod, a first rotating rod rotatably mounted on the upper side of the third sliding sleeve, a second rotating rod rotatably mounted on the first rotating rod and rotatably mounted on the guide rod, and the upper ends of the first rotating rod and the second rotating rod abutting against the lower end of the seat cushion.

[0015] The seat cushion is symmetrically fixed to the lower end of the second telescopic column, which is fixed to the moving frame. A sixth spring is symmetrically fixed between the seat cushion and the moving frame and sleeved on the outside of the second telescopic column. A first connecting rod is fixed to the lower end of the third sliding sleeve on one side, and a second connecting rod is fixed to the lower end of the third sliding sleeve on the other side.

[0016] Among them, each of the two limiting blocks is fixed with a sliding rod that slides with the support rod on one side. The first connecting rod and the second connecting rod are respectively slidably connected with the sliding rods on both sides. Each of the first connecting rod and the second connecting rod has a sliding cavity on one side. A seventh spring is fixed to one end of the sliding cavity at the end of the sliding rod.

[0017] The present invention has at least the following beneficial effects:

[0018] This invention uses a limiting component to limit the range of forward and backward rotation of the handle, preventing excessive force from the patient pulling the handle, which could lead to excessive rotation of the foot and ankle and cause injury. Furthermore, the limiting component allows for flexible adjustment of the handle's rotation range based on the foot length of different patients, increasing the device's practicality. The adjustment component further allows for adjustment of the limiting component's control over the handle based on the weight of different patients, further meeting the needs of various users and increasing applicability. Attached Figure Description

[0019] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the pedal lower side limiting component of the present invention;

[0021] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the transmission structure between the first gear and the second gear of the present invention;

[0023] Figure 5 This is a schematic diagram of the transmission structure between the second gear and the two side limiting blocks of the present invention;

[0024] Figure 6 For the present invention Figure 5 A magnified structural diagram of the C-type structure;

[0025] Figure 7 For the present invention Figure 1 A schematic diagram of the explosion of the backrest panel and the first telescopic column at point B;

[0026] Figure 8 This is a schematic diagram of the overall frontal stereoscopic structure in Embodiment 3 of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the control component of the present invention;

[0028] Figure 10 This is a schematic diagram of the connection between the first connecting rod and the limiting block in this invention;

[0029] Figure 11 This is a cross-sectional structural diagram of the connection between the first connecting rod and the limiting block of the present invention.

[0030] In the diagram: 11. Support; 12. Movable frame; 13. Pedal; 14. Backrest; 15. Seat cushion; 16. Handle; 17. Strap; 2. Limiting assembly; 21. Connector; 22. Pressure plate; 23. Sliding component; 24. First spring; 25. Sleeve rod; 26. First L-shaped rod; 27. Slide rod; 28. Through groove; 29. ​​Pressure rod; 210. Fixing block; 211. Second spring; 212. First rack; 213. First gear; 214. First bevel gear; 215. Connecting plate; 216. First support rod; 217. First sliding sleeve; 218. Bracket; 219. Second bevel gear; 220. Second gear; 221. Limiting gear ring; 222. Second support rod. 223. Second sliding sleeve; 224. Second rack; 225. Second L-shaped rod; 226. Support rod; 227. Limiting block; 228. Limiting tooth block; 229. Connecting rod; 230. Fixing rod; 231. Fastening screw; 232. Third L-shaped rod; 233. Connecting block; 234. Third spring; 235. First telescopic column; 236. Fourth spring; 3. Adjustment component; 31. Guide rod; 32. Third sliding sleeve; 33. Fifth spring; 34. First rotating rod; 35. Second rotating rod; 36. Sliding cavity; 37. Second telescopic column; 38. Sixth spring; 39. First connecting rod; 310. Second connecting rod; 311. Sliding rod; 312. Seventh spring. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figures 1 to 11 The present invention provides a technical solution: a postoperative training device for the foot and ankle, comprising: a support 11, a movable frame 12 disposed on one side of the support 11, a backrest 14 and a seat cushion 15 disposed on the movable frame 12, handles 16 symmetrically disposed on one side of the support 11, and pedals 13 symmetrically disposed on the other side of the support 11, with straps 17 disposed on the pedals 13.

[0034] It also includes: a limiting component 2, which is disposed on both sides of the handle 16 and is used to limit the rotation range of the handle 16;

[0035] The adjustment component 3 is located on the underside of the seat cushion 15. The adjustment component 3 is used to further adjust the limit of the limit component 2 on the handle 16.

[0036] During postoperative rehabilitation training of the foot and ankle, the patient sits on the seat cushion 15 and places their foot on the pedal 13, which is then secured by the strap 17. By pulling the handle 16 back and forth, the pedal 13 rotates back and forth, thus training the ankle joint. The limiting component 2 limits the range of motion of the handle 16, preventing excessive force from causing the handle 16 to rotate too much and thus injuring the foot and ankle. The limiting component 2 also allows for flexible adjustment of the range of motion of the handle 16 according to the foot length of different patients, increasing the practicality of the device. The adjusting component 3 further adjusts the limiting component 2's control over the handle 16 according to the weight of different patients, further meeting the needs of different patients and increasing applicability.

[0037] Example 2

[0038] The limiting component 2 includes a connector 21 that is slidably disposed with the pedal 13. The connector 21 passes through the pedal 13. A pressure plate 22 is fixedly disposed at the upper end of the connector 21. A first spring 24 is fixedly disposed between the connector 21 and the pedal 13. A sliding member 23 is symmetrically slidably disposed on the pedal 13. A through groove 28 is symmetrically opened on the pedal 13. The sliding member 23 slides along the through groove 28.

[0039] The connector 21 has symmetrical sleeve rods 25 on both sides, and slide rods 27 are slidably mounted on both sides of the sleeve rods 25. The lower slide rod 27 is rotatably mounted to the connector 21 via a pin, and the upper slide rod 27 is rotatably mounted to the lower side of the slide member 23 via a pin. A first L-shaped rod 26 is rotatably mounted on the sleeve rod 25 and fixed to the pedal 13. The first L-shaped rod 26 supports the sleeve rod 25. When the patient places their foot on the pedal 13, it presses down the pressure plate 22, causing the pressure plate 22 to move the connector 21 downward. The first spring 24 extends, causing the lower slide bar 27 to slide out of the sleeve bar 25 and the upper slide bar 27 to slide into the sleeve bar 25, causing the sleeve bar 25 to rotate around the first L-shaped bar 26. This causes the sliding parts 23 on both sides to move synchronously towards the center along the through groove 28, clamping the patient's feet. The distance between the limiting blocks 227 on both sides of the handle 16 can be adjusted according to the foot length of different patients. After the sliding parts 23 on both sides clamp the patient's feet, the feet are fixed by the strap 17.

[0040] A pressure rod 29 is abutted against the lower side of the connector 21. A second spring 211 is symmetrically arranged on the pressure rod 29. A fixing block 210 fixed to the support 11 is fixed at the upper end of the second spring 211. The second spring 211 plays a role in resetting the pressure rod 29 and initially keeps the pressure rod 29 abutting against the lower end of the connector 21. A first rack 212 is fixed at the other end of the pressure rod 29. The first rack 212 is meshed with a first gear 213. Connecting plates 215 are fixed on both sides of the support 11. A first support rod 216 is fixed in the middle of the first gear 213 and is rotatably arranged with the connecting plate 215. A first bevel gear 214 is fixed on the first support rod 216. The first support rod 216 supports the first gear 213 and the first bevel gear 214.

[0041] A second support rod 222 is rotatably mounted on the upper side of the connecting plate 215. A limiting toothed ring 221, a second gear 220, and a second bevel gear 219 are fixed on the second support rod 222 from top to bottom. The second bevel gear 219 meshes with the first bevel gear 214. When the patient's foot is placed on the pedal 13, the downward movement of the connecting piece 21 will press down the pressure rod 29, which will cause the other end of the pressure rod 29 to drive the first rack 212 to move down, causing the first gear 213 to rotate. This will cause the first support rod 216 and the first bevel gear 214 to rotate, which in turn will cause the second bevel gear 219, the second support rod 222, the second gear 220, and the limiting toothed ring 221 to rotate.

[0042] The second gear 220 is meshed with two second racks 224 on both sides. The two second racks 224 are slidably fitted with second sleeves 223, which can support and guide the second racks 224. The first rack 212 is slidably fitted with a first sleeve 217, which can guide the first rack 212. The connecting plate 215 is fixed with a bracket 218 on one side, which is fixed to the first sleeve 217 and the second sleeve 223 on one side. The second L-shaped rod 225 is fixed to the lower side of the second sleeve 223 on the other side, which is fixed to the connecting plate 215.

[0043] Each of the two second racks 224 has a support rod 226 fixed to one side, and a limiting block 227 is fixed on the support rod 226. The limiting blocks 227 on both sides are located on both sides of the handle 16 to limit the rotation range of the handle 16. The rotation of the second gear 220 will cause the two second racks 224 to move relative to each other, causing the support rods 226 and the limiting blocks 227 on both sides to move closer to each other. Thus, the distance between the two limiting blocks 227 can be flexibly adjusted according to the foot length of different patients, thereby limiting the rotation range of the handle 16. The longer the patient's foot, the smaller the relative movement distance of the slider 23, the smaller the downward movement distance of the connector 21, and the smaller the downward movement distance of the pressure rod 29. This results in a smaller relative movement distance between the two limit blocks 227, allowing the handle 16 to rotate at a larger maximum range, which in turn allows the pedal 13 to rotate at a larger range, thus providing better training for ankles with longer feet. Conversely, when the patient's foot is shorter, the maximum range of rotation of the handle 16 can be smaller, which in turn allows the pedal 13 to rotate at a smaller range, preventing excessive rotation of the ankle joint and thus avoiding ankle injury.

[0044] A limiting tooth block 228 is provided on one side of the limiting tooth ring 221. The limiting tooth block 228 is adapted to the limiting tooth ring 221. A third L-shaped rod 232 is fixed on one side of the limiting tooth block 228 and is slidably disposed with the connecting plate 215. A sliding groove is provided at the lower end of the third L-shaped rod 232 on the connecting plate 215. The third L-shaped rod 232 slides along the sliding groove. A third spring 234 is fixed on one side of the third L-shaped rod 232. A connecting block 233 fixed to the connecting plate 215 is fixed on one side of the third spring 234. Through the blocking effect of the sliding groove end on the third L-shaped rod 232 and the elastic force of the third spring 234 on the third L-shaped rod 232, the position of the limiting tooth block 228 can be ultimately maintained in the same position after the fixed rod 230 slides along the connecting rod 229.

[0045] A connecting rod 229 is fixedly provided on the other side of the limiting tooth block 228. A fixing rod 230 fixed to the backrest plate 14 is slidably provided on one side of the connecting rod 229. A fastening screw 231 is threaded on the fixing rod 230. When the moving frame 12 is moved closer to or away from the pedal 13 to adjust the position of the seat cushion 15, the fixing rod 230 slides along the connecting rod 229. After the position of the seat cushion 15 is adjusted, the fastening screw 231 is tightened so that the fastening screw 231 abuts against the connecting rod 229 to fix the fixing rod 230 and the connecting rod 229. A first telescopic column 235 fixed to the moving frame 12 is symmetrically fixed on one side of the backrest plate 14. The backrest plate 14 and the moving frame 12 are connected by a first telescopic column 235 fixed to the moving frame 12. A fourth spring 236 is symmetrically fixed on the outside of the first telescopic column 235. When the patient pulls the handle 16 to rotate, the patient will press against the backrest 14, causing the backrest 14 to move away from the pedal 13. The first telescopic column 235 will retract, thereby driving the limiting tooth block 228 to move synchronously through the fixed rod 230 and the connecting rod 229. The limiting tooth block 228 will move towards the limiting tooth ring 221, so that the teeth of the limiting tooth block 228 will engage in the tooth groove of the limiting tooth ring 221, thereby restricting the rotation of the limiting tooth ring 221 and the second gear 220. This maintains the distance between the limiting blocks 227 on both sides of the handle 16 when the handle 16 is pulled, preventing the handle 16 from rotating too much.

[0046] Example 3

[0047] The control assembly 3 includes a guide rod 31 fixed to the support 11. The guide rod 31 is located inside the movable frame 12. A third sliding sleeve 32 is symmetrically slidably arranged on the guide rod 31. A fifth spring 33 fixed to the guide rod 31 is fixed on one side of the third sliding sleeve 32. A first rotating rod 34 is rotatably arranged on the upper side of the third sliding sleeve 32 through a pin. A second rotating rod 35 is rotatably arranged on the first rotating rod 34 through a pin. The lower end of the second rotating rod 35 is rotatably arranged with the guide rod 31 through a pin. The upper ends of the first rotating rod 34 and the second rotating rod 35 abut against the lower end of the seat cushion 15.

[0048] The lower end of the seat cushion 15 is symmetrically fixed with a second telescopic column 37 fixed to the movable frame 12. A sixth spring 38 is symmetrically fixed between the seat cushion 15 and the movable frame 12 and sleeved on the outside of the second telescopic column 37. After the patient sits on the seat cushion 15, the seat cushion 15 will move down a different distance due to the different weights of different patients. The downward movement of the seat cushion 15 will cause the second telescopic column 37 to contract, the sixth spring 38 to compress, and will press against the upper ends of the first rotating rod 34 and the second rotating rod 35, causing the third sliding sleeves 32 on both sides to move relative to each other. A first connecting rod 39 is fixed to the lower end of one third sliding sleeve 32, and a second connecting rod 310 is fixed to the lower end of the other third sliding sleeve 32.

[0049] In this embodiment, the limiting block 227 is not fixed to the support rod 226. The opposite sides of the limiting blocks 227 on both sides are fixed with sliding rods 311 that are slidably disposed with the support rod 226. The first connecting rod 39 and the second connecting rod 310 are respectively slidably disposed with the sliding rods 311 on both sides. The first connecting rod 39 and the second connecting rod 310 are respectively provided with sliding cavities 36 on the side near the sliding rods 311. The sliding rod 311 slides along the sliding cavity 36. The end of the sliding rod 311 is fixed with a seventh spring 312 that is fixed with one end of the sliding cavity 36. The seventh spring 312 is sleeved on the outside of the sliding rod 311 and located inside the sliding cavity 36.

[0050] After the patient sits on the seat cushion 15, the downward movement of the seat cushion 15 causes the third sliding sleeves 32 on both sides to move relative to each other. This, through the first connecting rod 39 and the second connecting rod 310, drives the sliding rods 311 on both sides to move relative to each other, thereby causing the limiting blocks 227 on both sides to move relative to each other. For heavier patients, the seat cushion 15 moves downward a greater distance, resulting in a greater relative movement of the limiting blocks 227 on both sides. This reduces the maximum range of rotation of the handle 16, preventing ankle injury. Subsequently, after the patient places their feet on the pedal 13, the limiting assembly 2 allows the support rods 226 on both sides to move relative to each other. If the patient's feet are short, the support rods 226 on both sides will move relative to each other. If the relative movement of the 6th arm is relatively large, the support rod 226 may slide to abut against the limiting block 227 and then continue to push the limiting block 227 closer together, causing the sliding rod 311 to slide along the sliding cavity 36. The seventh spring 312 is compressed, so that the maximum range of rotation of the handle 16 is smaller. Conversely, if the patient's feet are long, the support rods 226 on both sides will not push the limiting blocks 227 on both sides to move closer together after relative movement. The rotation range of the handle 16 is mainly controlled by the patient's weight. Thus, the rotation range of the handle 16 can be adjusted by combining the patient's weight and foot length to further meet the needs of different patients and increase the applicability of this device.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A postoperative training device for the foot and ankle, comprising: A support (11) is provided on one side of the support (11), a movable frame (12) is provided on the movable frame (12), a backrest (14) and a seat cushion (15) are provided on the movable frame (12), a handle (16) is symmetrically provided on one side of the support (11), and a foot pedal (13) is symmetrically provided on the other side of the support (11), and a strap (17) is provided on the foot pedal (13). The feature is that it further includes: a limiting component (2), which is disposed on both sides of the handle (16) and is used to limit the rotation range of the handle (16); The control component (3) is located on the underside of the seat cushion (15) and is used to further control the limiting component (2) on the handle (16).

2. The postoperative training device for foot and ankle surgery according to claim 1, characterized in that: The limiting component (2) includes a connector (21) that is slidably disposed with the pedal (13). A pressure plate (22) is fixedly disposed on the upper end of the connector (21). A first spring (24) is fixedly disposed between the connector (21) and the pedal (13). A sliding member (23) is symmetrically slidably disposed on the pedal (13). A through groove (28) is symmetrically opened on the pedal (13).

3. The postoperative training device for foot and ankle surgery according to claim 2, characterized in that: The connector (21) is symmetrically provided with sleeve rods (25) on both sides. Slide rods (27) are slidably provided on both sides of the sleeve rods (25). The lower slide rod (27) is rotatably provided with the connector (21), and the upper slide rod (27) is rotatably provided with the lower side of the slide member (23). A first L-shaped rod (26) fixed to the pedal (13) is rotatably provided on the sleeve rods (25).

4. The postoperative training device for foot and ankle surgery according to claim 2, characterized in that: A pressure rod (29) is abutted against the lower side of the connector (21). A second spring (211) is symmetrically arranged on the pressure rod (29). A fixing block (210) fixed to the support (11) is fixed at the upper end of the second spring (211). A first rack (212) is fixed at the other end of the pressure rod (29). A first gear (213) is meshed with the first rack (212). Connecting plates (215) are fixed on both sides of the support (11). A first support rod (216) is fixed in the middle of the first gear (213) and rotates with the connecting plate (215). A first bevel gear (214) is fixed on the first support rod (216).

5. The postoperative training device for foot and ankle surgery according to claim 4, characterized in that: The connecting plate (215) is rotatably provided with a second support rod (222). The second support rod (222) is fixed from top to bottom with a limiting toothed ring (221), a second gear (220) and a second bevel gear (219). The second bevel gear (219) is meshed with the first bevel gear (214). The two sides of the second gear (220) are meshed with second racks (224). The two second racks (224) are slidably fitted with second sliding sleeves (223). The first rack (212) is slidably fitted with a first sliding sleeve (217). The connecting plate (215) is fixed with a bracket (218) on one side, which is fixed with the first sliding sleeve (217) and the second sliding sleeve (223) on one side. The second L-shaped rod (225) is fixed to the lower side of the second sliding sleeve (223) on the other side, which is fixed with the connecting plate (215).

6. The postoperative training device for foot and ankle surgery according to claim 5, characterized in that: A support rod (226) is fixed on one side of each of the two second racks (224), and a limiting block (227) is fixed on the support rod (226). A limiting tooth block (228) is provided on one side of the limiting tooth ring (221). A third L-shaped rod (232) that slides with the connecting plate (215) is fixed on one side of the limiting tooth block (228). A third spring (234) is fixed on one side of the third L-shaped rod (232), and a connecting block (233) that is fixed with the connecting plate (215) is fixed on one side of the third spring (234).

7. The postoperative training device for foot and ankle surgery according to claim 6, characterized in that: A connecting rod (229) is fixedly provided on the other side of the limiting tooth block (228). A fixing rod (230) fixed to the backrest plate (14) is slidably provided on one side of the connecting rod (229). A fastening screw (231) is threaded on the fixing rod (230). A first telescopic column (235) fixed to the moving frame (12) is symmetrically fixed on one side of the backrest plate (14). A fourth spring (236) sleeved on the outside of the first telescopic column (235) is symmetrically fixed between the backrest plate (14) and the moving frame (12).

8. The postoperative training device for foot and ankle surgery according to claim 6, characterized in that: The control component (3) includes a guide rod (31) fixed to the support (11), a third sliding sleeve (32) symmetrically slidably disposed on the guide rod (31), a fifth spring (33) fixed to the guide rod (31) on one side of the third sliding sleeve (32), a first rotating rod (34) rotatably disposed on the upper side of the third sliding sleeve (32), a second rotating rod (35) rotatably disposed on the first rotating rod (34) and rotatably disposed on the guide rod (31), and the upper ends of the first rotating rod (34) and the second rotating rod (35) abut against the lower end of the seat cushion (15).

9. The postoperative training device for foot and ankle surgery according to claim 8, characterized in that: The lower end of the seat cushion (15) is symmetrically fixed with a second telescopic column (37) fixed to the moving frame (12). A sixth spring (38) sleeved on the outside of the second telescopic column (37) is symmetrically fixed between the seat cushion (15) and the moving frame (12). A first connecting rod (39) is fixed at the lower end of the third sliding sleeve (32) on one side, and a second connecting rod (310) is fixed at the lower end of the third sliding sleeve (32) on the other side.

10. The postoperative training device for foot and ankle surgery according to claim 9, characterized in that: Each of the two limiting blocks (227) is fixed with a sliding rod (311) that is slidably disposed with the support rod (226). The first connecting rod (39) and the second connecting rod (310) are respectively slidably disposed with the sliding rods (311) on both sides. A sliding cavity (36) is opened on one side of the first connecting rod (39) and the second connecting rod (310). A seventh spring (312) is fixed at the end of the sliding rod (311) and fixed at one end of the sliding cavity (36).

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