Adjustable ankle pump movement booster

Abstract

The utility model relates to the technical field of lower limb rehabilitation training, in particular to an adjustable ankle pump movement booster which comprises a shank fixing mechanism and a foot fixing mechanism connected with the shank fixing mechanism in a longitudinal spacing mode, and the foot fixing mechanism is connected with the shank fixing mechanism in a hinged mode. The device is characterized in that the shank fixing mechanism comprises two leg fixing frames arranged in parallel and a shank wrapping adjusting assembly connected with the leg fixing frames, and the two leg fixing frames are each provided with a height adjusting assembly; the foot fixing mechanism comprises a bottom plate and a foot elastic band connected with the bottom plate, the bottom plate is hinged to the leg fixing frame through a connecting strip, and the bottom plate is provided with a bottom plate transverse distance adjusting assembly and a longitudinal distance adjusting assembly. By means of the height adjusting assembly, the transverse distance adjusting assembly and the longitudinal distance adjusting assembly, multi-dimensional adjustment is achieved, personalized adaptation is achieved for different users, and the situation that compensation actions are caused by improper fixation, and rehabilitation effectiveness is affected is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of lower limb rehabilitation training, and in particular to an adjustable ankle pump exercise booster. Background Art

[0002] Thrombosis is a high-risk complication for hospitalized patients, and the population affected by thrombosis covers all age groups. The ankle pump exercise booster significantly improves the blood circulation efficiency of the lower limbs by assisting patients to complete ankle pump exercises in a standardized and continuous manner, thereby effectively preventing deep vein thrombosis. The ankle pump exercise booster is a device that assists patients in completing ankle flexion, extension, and rotation movements through mechanical structures, sensors, or intelligent components. Its core goal is to help patients complete ankle pump exercises more efficiently through standardized movements and auxiliary power, thereby improving lower limb blood circulation and preventing complications.

[0003] At present, the Chinese utility model patent application with the publication date of March 21, 2025 and the announcement number CN 222640878U provides an ankle pump exercise booster, including: a calf placement board; a foot pedal assembly, which is rotatably installed inside the ankle placement board; an angle placement frame, which is detachably fixed on the calf placement board and allows the calf placement board to tilt when placed; an angle limiting device, two of which are provided and fixed on both sides of the calf placement board respectively; an adjustment device, which is installed between the angle placement frame and the calf placement board; a driving device, two of which are provided; the utility model controls the size of the rotation angle of the foot pedal assembly by limiting the driving range of the driving device through the setting of the angle limiting device, so that the foot pedal assembly can adjust the range of motion of the ankle joint according to the patient's rehabilitation process, thereby avoiding damage to the patient due to excessive activity during rehabilitation.

[0004] Ankle pump exercise boosters in related technologies are used by people of all ages. Users of different ages, genders, and body shapes have significant differences in leg length, foot size, ankle thickness, etc. Children's leg length is only about half that of adults, and the ankle circumference of obese patients may be more than 30% larger than that of ordinary people. However, existing ankle pump exercise boosters usually adopt a fixed-size design, which is difficult to adapt to a wide range of individual differences and cannot provide a stable fit for the user's legs and feet. When the ankle pump exercise booster cannot fit closely with the user's legs and feet, loose fixation will cause the ankle joint to slip or shift during exercise, and this shift will directly affect the effectiveness of rehabilitation.

[0005] Therefore, it is necessary to propose an adjustable ankle pump exercise booster to solve the above problems. Utility Model Content

[0006] An embodiment of the present application provides an adjustable ankle pump exercise booster, which is designed to improve the technical problem that the fixed-size design in the related art is difficult to adapt to a wide range of individual differences among users of different ages, genders and body shapes, and cannot provide a stable fit for the user's legs and feet, thereby directly affecting the effectiveness of rehabilitation.

[0007] An embodiment of the present application provides an adjustable ankle pump exercise booster, comprising a calf fixing mechanism and a foot fixing mechanism connected to the calf fixing mechanism at a longitudinal distance, the foot fixing mechanism and the calf fixing mechanism being hingedly connected; it is characterized in that: the calf fixing mechanism comprises two leg fixing frames arranged in parallel and a calf covering adjustment component connected to the leg fixing frames, and the two leg fixing frames are respectively provided with a height adjustment component; the foot fixing mechanism comprises a base plate and a foot elastic band connected to the base plate, the base plate and the leg fixing frames are hinged by a connecting strip, and the base plate is provided with a base plate horizontal spacing adjustment component and a longitudinal spacing adjustment component.

[0008] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: when the patient wears the ankle pump exercise booster, by fixing the side of the calf to the leg fixing frame, the thickness of the calf is adjusted through the calf covering adjustment component, so that the calf fixing frame is more stably tied to the calf, and the patient's foot is fixed to the base plate and fixed by the foot elastic band. According to the body shape differences of different patients, the height adjustment component, the horizontal spacing adjustment component and the vertical spacing adjustment component are adjusted according to the leg length, foot width and foot length to achieve personalized adaptation of the leg fixed length and foot fixed size. Maintaining appropriate fixed length and strength can help patients maintain a stable movement trajectory of the ankle joint when doing ankle pump exercises, avoid compensatory movements caused by improper fixation, and enhance the effectiveness of rehabilitation training.

[0009] The adjustable ankle pump exercise booster provided in the embodiment of the present application can achieve personalized adaptation to the fixed length of the leg and the fixed size of the foot through a height adjustment component, a lateral spacing adjustment component and a longitudinal spacing adjustment component, through multi-dimensional adjustment components such as height, lateral spacing, and longitudinal spacing. At the same time, appropriate fixed length and strength can help patients maintain a stable movement trajectory of the ankle joint when doing ankle pump exercises, avoid compensatory movements caused by improper fixation, and enhance the effectiveness of rehabilitation training.

[0010] In this embodiment, the calf covering adjustment component includes an elastic band of the inner diameter of the calf provided at the front end of the fixing frame and an elastic band of the outer diameter of the calf provided at the rear end of the fixing frame.

[0011] The technical effect of the above embodiment is as follows: by adjusting the elastic bands on the inner and outer sides, relative displacement between the shell and the limbs of the existing exoskeleton form can be avoided. The inner and outer diameters can be adjusted by the elastic bands to adapt to different leg shapes and sizes and different individual differences. At the same time, the leg fixing frames can be fixed on both sides of the calf, thereby achieving a predictable movement trajectory.

[0012] In this embodiment, the base plate includes a first adjustment block and a second adjustment block rotatably connected to the connecting bar, a third adjustment block provided at the front end of the first adjustment block, and a fourth adjustment block provided at the front end of the second adjustment block; a horizontal spacing adjustment component is provided between the first adjustment block, the second adjustment block, the third adjustment block, and the fourth adjustment block; a vertical spacing adjustment component is provided between the first adjustment block, the third adjustment block, the second adjustment block, and the fourth adjustment block.

[0013] The technical effect of the above embodiment is as follows: by adjusting the length of the horizontal spacing adjustment component and the vertical spacing adjustment component, and by adjusting the horizontal and vertical dimensions of the base plate, the size of the base plate can be better adjusted, so that the base plate can more accurately match the user's foot shape, thereby making the base plate better adapt to the foot size of users of different ages, genders and body shapes.

[0014] In this embodiment, the transverse spacing adjustment component includes a transverse spacing extension portion arranged on the first adjustment block and the second adjustment block, and the first adjustment block and the second adjustment block are both provided with a transverse spacing extension cavity on their transverse spacing end faces, and both ends of the transverse spacing extension portion extend into the transverse spacing extension cavities on the first adjustment block and the second adjustment block, and the first adjustment block and the second adjustment block are both provided with a transverse spacing abutment cavity, and the transverse spacing abutment cavity is connected to the transverse spacing extension cavity; a transverse spacing abutment block is provided in the transverse spacing abutment cavity, and a first abutment nut is provided through the first adjustment block and the second adjustment block and is rotatably connected to the transverse spacing abutment block, the first abutment nut is threadedly connected to the first adjustment block and the second adjustment block, and the transverse spacing abutment block and the transverse spacing extension portion are limited by a transverse spacing engagement limiter.

[0015] The technical effect in the above embodiment is: in the process of adjusting the width of the foot by adjusting the lateral spacing adjustment assembly, the lateral spacing abutment block and the lateral spacing extension portion are moved away from each other by rotating the first abutment nut, and the length of the lateral spacing extension portion is expanded and contracted in the lateral spacing extension cavity, thereby achieving the effect of adjusting the lateral spacing length. When it reaches the appropriate position, the lateral spacing abutment block and the lateral spacing extension portion are clamped through the lateral spacing engagement limiter by rotating the first abutment nut, thereby achieving the effect of adjusting the width of the foot.

[0016] In this embodiment, the lateral spacing engagement limit member includes a first limiting tooth provided on a side of the lateral spacing extension portion close to the lateral spacing abutment block; and a second limiting tooth provided on a side of the lateral spacing abutment block close to the lateral spacing extension portion, and the first limiting tooth and the second limiting tooth are engaged with each other.

[0017] The technical effect of the above embodiment is: by engaging the first limiting tooth on the lateral spacing abutment block with the second limiting tooth on the lateral spacing extension portion, the length of the lateral spacing adjustment can be accurately controlled, and more precise limiting can be achieved to avoid sliding and telescoping.

[0018] In this embodiment, the longitudinal spacing adjustment assembly includes a longitudinal spacing extension portion arranged on the first adjustment block, the third adjustment block is provided with a longitudinal spacing extension cavity on its longitudinal spacing end face, the longitudinal spacing extension portion extends into the longitudinal spacing extension cavity on the third adjustment block, the third adjustment block is provided with a longitudinal spacing abutment cavity, the longitudinal spacing abutment cavity is connected to the longitudinal spacing extension cavity, a longitudinal spacing abutment block is provided through the longitudinal spacing abutment cavity, a second abutment nut is provided through the third adjustment block and is rotatably connected to the longitudinal spacing abutment block, the second abutment nut is threadedly connected to the third adjustment block, and the longitudinal spacing abutment block and the longitudinal spacing extension portion are limited by a longitudinal spacing engagement limiter.

[0019] The technical effect in the above embodiment is: in the process of adjusting the length of the adjusting foot by the longitudinal spacing adjustment assembly, the longitudinal spacing abutment block and the longitudinal spacing extension portion are moved away from each other in the longitudinal spacing abutment cavity by rotating the second abutment nut, and the length of the longitudinal spacing extension portion is expanded and contracted in the longitudinal spacing extension cavity, thereby achieving the effect of adjusting the longitudinal spacing length. When it reaches the appropriate position, the longitudinal spacing abutment block and the longitudinal spacing extension portion are clamped through the longitudinal spacing engagement limiter by rotating the second abutment nut, thereby achieving the effect of adjusting the length of the foot.

[0020] In this embodiment, the longitudinal spacing engagement limit member includes a third limiting tooth provided on a side of the longitudinal spacing extension portion close to the longitudinal spacing abutment block; and a fourth limiting tooth provided on a side of the transverse spacing abutment block close to the transverse spacing extension portion, and the third limiting tooth and the fourth limiting tooth are engaged with each other.

[0021] The technical effect of the above embodiment is: by engaging the third limiting tooth on the longitudinal spacing abutment block with the fourth limiting tooth on the longitudinal spacing extension portion, the length of the longitudinal spacing adjustment can be accurately controlled, and more precise limiting can be achieved to avoid sliding and telescoping.

[0022] In this embodiment, the height adjustment assembly includes a movable frame arranged above the leg fixing frame, and a height extension cavity is provided on the movable frame; a height extension portion is connected to the leg fixing frame and extends into the height extension cavity; a height abutment cavity is provided in the movable frame, and the height abutment cavity is connected to the height extension cavity; a height abutment block is provided in the height abutment cavity, and a third abutment nut is provided through the movable frame and is rotatably connected to the height abutment block. The third abutment nut is threadedly connected to the movable frame, and the height abutment block and the height extension portion are limited by a height engagement limiter.

[0023] The technical effect in the above embodiment is: in the process of adjusting the longitudinal spacing adjustment component to adjust the length of the leg, the height abutment block and the height extension part are moved away from each other in the height abutment cavity by rotating the third abutment nut, and the length of the height extension part is extended and retracted in the height extension cavity, thereby achieving the effect of adjusting the height length. When it reaches the appropriate position, the height abutment block and the height extension part are clamped through the height engagement limiter by rotating the third abutment nut, thereby achieving the effect of adjusting the leg length.

[0024] In this embodiment, the height engagement limiter includes a fifth limiter tooth provided on one side of the height extension portion close to the height abutment block; and a sixth limiter tooth provided on one side of the height abutment block close to the height extension portion, and the fifth limiter tooth and the sixth limiter tooth are engaged with each other.

[0025] The technical effect of the above embodiment is: by engaging the fifth limiting tooth on the height abutment block with the sixth limiting tooth on the height extension portion, the height adjustment length can be accurately controlled, and more precise limiting can be achieved to avoid sliding and telescoping.

[0026] In this embodiment, elastic bandages are provided on the height surface between the first adjusting block and the second adjusting block and the third adjusting block and the fourth adjusting block, and protective pads are provided on the first adjusting block, the second adjusting block, the third adjusting block and the fourth adjusting block.

[0027] The technical effect of the above embodiment is as follows: the elastic bandage drives the entire base plate to rotate during the activity, thereby avoiding stress concentration, and the protective pad protects the user's feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an adjustable ankle pump exercise booster provided in an embodiment of the present application;

[0029] Figure 2 Schematic diagram of the explosion structure of the base plate provided in the embodiment of the present application Figure 1 ;

[0030] Figure 3A schematic cross-sectional view of a height adjustment assembly according to an embodiment of the present application;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 A schematic diagram of the exploded structure of the longitudinal spacing adjustment assembly provided in an embodiment of the present application;

[0033] Figure 6 for Figure 5 Enlarged view of point B in FIG.

[0034] Figure 7 A schematic diagram of the exploded structure of the lateral spacing adjustment assembly provided in an embodiment of the present application;

[0035] Figure 8 for Figure 7 Enlarged view of point C in the figure;

[0036] Among them, the reference numerals in the figures are:

[0037] 1. Calf fixing mechanism; 11. Leg fixing frame; 12. Calf covering adjustment assembly; 121. Calf outer diameter elastic band; 122. Calf inner diameter elastic band; 13. Connecting strip; 2. Foot fixing mechanism; 21. Bottom plate; 211. First adjustment block; 212. Second adjustment block; 213. Third adjustment block; 214. Fourth adjustment block; 22. Foot elastic band; 3. Height adjustment assembly; 31. Movable frame; 32. Height extension portion; 33. Height extension cavity; 34. Height abutment cavity; 35. Height abutment block; 36. Third abutment nut; 37. Height engagement limiter; 371. Fifth limiter tooth; 372. Sixth limiter tooth Limiting teeth; 4. Transverse spacing adjustment component; 41. Transverse spacing extension portion; 42. Transverse spacing extension cavity; 43. Transverse spacing abutment cavity; 44. Transverse spacing abutment block; 45. First abutment nut; 46. Transverse spacing engagement limiting member; 461. First limiting tooth; 462. Second limiting tooth; 5. Longitudinal spacing adjustment component; 51. Longitudinal spacing extension portion; 52. Longitudinal spacing extension cavity; 53. Longitudinal spacing abutment cavity; 54. Longitudinal spacing abutment block; 55. Second abutment nut; 56. Longitudinal spacing engagement limiting member; 561. Third limiting tooth; 562. Fourth limiting tooth; 6. Elastic bandage; 61. Protective pad. DETAILED DESCRIPTION

[0038] The ankle pump exercise booster in the related art cannot provide a good fit for the user's legs and feet because its users cover all age groups and different body shapes. Insufficient fixation will cause the ankle joint movement trajectory to deviate, directly affecting the effectiveness of rehabilitation and affecting the user's user experience.

[0039] Based on this, in order to improve the technical problems existing in the related art, such as the use of fixed-size designs, which are difficult to adapt to a wide range of individual differences among users of different ages, genders and body shapes, and are unable to provide a stable fit for the user's legs and feet, thereby directly affecting the effectiveness of rehabilitation, the embodiments of this application provide the following solutions.

[0040] Please also refer to Figures 1 to 8 The embodiment of the present application provides a roller unit for preventing roller neck fracture. The roller unit for preventing roller neck fracture includes a calf fixing mechanism 1 and a foot fixing mechanism 2 connected to the calf fixing mechanism 1 at a longitudinal distance, and the foot fixing mechanism 2 is hingedly connected to the calf fixing mechanism 1; the characteristic is that the calf fixing mechanism 1 includes two leg fixing frames 11 arranged in parallel and a calf covering adjustment component 12 connected to the leg fixing frames 11, and the two leg fixing frames 11 are respectively provided with a height adjustment component 3; the foot fixing mechanism 2 includes a bottom plate 21 and a foot elastic band 22 connected to the bottom plate 21, the bottom plate 21 and the leg fixing frame 11 are hinged by a connecting strip 13, and the bottom plate 21 is provided with a horizontal spacing adjustment component 4 and a longitudinal spacing adjustment component 5 for promoting the bottom plate 21.

[0041] The roller unit for preventing roller neck fracture provided in the embodiment of the present application is used to fix the side of the calf to the leg fixing frame 11 during the process of the patient wearing the ankle pump exercise booster. The calf cover adjustment component 12 is used to adjust the thickness of the calf, so that the calf fixing frame is more stably tied to the calf. At the same time, the patient's foot is fixed to the base plate 21 and fixed by the foot elastic band 22. According to the body differences of different patients, the height adjustment component 3, the lateral spacing adjustment component 4 and the longitudinal spacing adjustment component 5 are adjusted according to the leg length, foot width and foot length to achieve personalized adaptation of the leg fixed length and foot fixed size. In this way, through the height adjustment component 3, the lateral spacing adjustment component 4 and the longitudinal spacing adjustment component 5, personalized adaptation of the leg fixed length and foot fixed size is achieved through multi-dimensional adjustment components such as height, lateral spacing and longitudinal spacing. At the same time, the appropriate fixed length and force can help the patient maintain a stable movement trajectory of the ankle joint when doing ankle pump exercises, avoid compensatory movements caused by improper fixation, and enhance the effectiveness of rehabilitation training.

[0042] In this embodiment, the calf covering adjustment assembly 12 includes a calf inner diameter elastic band 122 disposed at the front end of the fixing frame and a calf outer diameter elastic band 121 disposed at the rear end of the fixing frame.

[0043] With this arrangement, the elastic bands on the inner and outer sides are adjusted to avoid relative displacement between the shell and the limbs of the existing exoskeleton form. The inner and outer diameters can be adjusted by the elastic bands, which can adapt to different leg shapes and sizes and different individual differences. At the same time, the leg fixing frame 11 can be fixed on both sides of the calf, thereby achieving a predictable movement trajectory.

[0044] In this embodiment, the base plate 21 includes a first adjustment block 211 and a second adjustment block 212 rotatably connected to the connecting bar 13, a third adjustment block 213 provided at the front end of the first adjustment block 211, and a fourth adjustment block 214 provided at the front end of the second adjustment block 212; the horizontal spacing adjustment component 4 is provided between the first adjustment block 211, the second adjustment block 212 and the third adjustment block 213 and the fourth adjustment block 214; the longitudinal spacing adjustment component 5 is provided between the first adjustment block 211, the third adjustment block 213 and the second adjustment block 212 and the fourth adjustment block 214.

[0045] With such a configuration, when adjusting the width of the base plate 21, the horizontal spacing adjustment component 4 between the first adjustment block 211, the second adjustment block 212, the third adjustment block 213, and the fourth adjustment block 214 is adjusted; and when adjusting the length of the base plate 21, the vertical spacing adjustment component 5 between the first adjustment block 211, the third adjustment block 213, the second adjustment block 212, and the fourth adjustment block 214 is adjusted, so as to adjust the base plate 21 to a size suitable for the user. At the same time, by adjusting the length of the horizontal spacing adjustment component 4 and the vertical spacing adjustment component 5, the size of the base plate 21 can be better adjusted by adjusting the horizontal and vertical dimensions of the base plate 21, so that the base plate 21 can more accurately match the user's foot shape, thereby making the base plate 21 better adapt to the size of the soles of users of different ages, genders, and body shapes. In this way, by adjusting the length of the horizontal spacing adjustment component 4 and the vertical spacing adjustment component 5, and by adjusting the horizontal spacing and vertical spacing in two dimensions, the base plate 21 can more accurately match the user's foot shape, thereby better adjusting the size of the base plate 21, so that the base plate 21 can better adapt to the sole size of users of different ages, genders and body shapes. By grouping the adjustment blocks and coordinating the horizontal spacing and vertical spacing adjustment components 5, precise adjustment of the width and length of the base plate 21 can be achieved. Through "modular independent adjustment" and "biomechanical adaptation", the personalized fixation needs of the three-dimensional space of the foot are solved.

[0046] In this embodiment, the transverse spacing adjustment component 4 includes a transverse spacing extension portion 41 provided on the first adjustment block 211 and the second adjustment block 212. The first adjustment block 211 and the second adjustment block 212 are both provided with a transverse spacing extension cavity 42 on their transverse spacing end surfaces. Both ends of the transverse spacing extension portion 41 extend into the transverse spacing extension cavity 42 on the first adjustment block 211 and the second adjustment block 212. The first adjustment block 211 and the second adjustment block 212 are both provided with a transverse spacing abutment cavity 43, which is connected to the transverse spacing extension cavity 42; a transverse spacing abutment block 44 is provided in the transverse spacing abutment cavity 43, and a first abutment nut 45 is provided through the first adjustment block 211 and the second adjustment block 212 and is rotatably connected to the transverse spacing abutment block 44. The first abutment nut 45 is threadedly connected to the first adjustment block 211 and the second adjustment block 212, and the transverse spacing abutment block 44 is limited to the transverse spacing extension portion 41 by a transverse spacing engagement limiter 46.

[0047] With this arrangement, when adjusting the width of the foot using the transverse spacing adjustment assembly 4, the transverse spacing abutment block 44 is moved away from the transverse spacing extension 41 by rotating the first abutment nut 45, thereby expanding and contracting the length of the transverse spacing extension 41 within the transverse spacing extension cavity 42, thereby adjusting the transverse spacing length. When the transverse spacing abutment block 44 is in the proper position, the transverse spacing engagement limiter 46 is engaged between the transverse spacing engagement block 44 and the transverse spacing extension 41 by rotating the first abutment nut 45, thereby adjusting the width of the foot. In this manner, the foot width of an edema patient may dynamically change daily, and threaded micro-adjustment can be used to match the degree of swelling in real time, reducing pressure on blood vessels by the fixation strap. The micro-adjustment capability meets individual foot width needs, while the rigid engagement limiter structure ensures safety during training.

[0048] In this embodiment, the transverse spacing engagement limit member 46 includes a first limiting tooth 461 provided on a surface of the transverse spacing extension portion 41 close to the transverse spacing abutment block 44; and a second limiting tooth 462 provided on a surface of the transverse spacing abutment block 44 close to the transverse spacing extension portion 41, and the first limiting tooth 461 and the second limiting tooth 462 are engaged with each other.

[0049] This arrangement allows precise control of the transverse spacing adjustment length by engaging the first limiting teeth 461 on the transverse spacing abutment block 44 with the second limiting teeth 462 on the transverse spacing extension 41, achieving more precise positioning and preventing sliding and extension. The concave and convex engagement of the limiting teeth forms a physical stop surface, ensuring safety.

[0050] In this embodiment, the longitudinal spacing adjustment assembly 5 includes a longitudinal spacing extension portion 51 arranged on the first adjustment block 211, and the third adjustment block 213 is provided with a longitudinal spacing extension cavity 52 on its longitudinal spacing end face. The longitudinal spacing extension portion 51 extends into the longitudinal spacing extension cavity 52 on the third adjustment block 213, and a longitudinal spacing abutment cavity 53 is provided on the third adjustment block 213. The longitudinal spacing abutment cavity 53 is connected with the longitudinal spacing extension cavity 52, and a longitudinal spacing abutment block 54 is provided in the longitudinal spacing abutment cavity 53. A second abutment nut 55 is provided through the third adjustment block 213 and is rotatably connected to the longitudinal spacing abutment block 54. The second abutment nut 55 is threadedly connected to the third adjustment block 213, and the longitudinal spacing abutment block 54 and the longitudinal spacing extension portion 51 are limited by a longitudinal spacing engagement limiter 56.

[0051] With this arrangement, when adjusting the longitudinal spacing adjustment assembly 5 to adjust the length of the foot, the longitudinal spacing abutment block 54 and the longitudinal spacing extension portion 51 are moved apart in the longitudinal spacing abutment cavity 53 by rotating the second abutment nut 55, and the length of the longitudinal spacing extension portion 51 is expanded or contracted in the longitudinal spacing extension cavity 52, thereby achieving the effect of adjusting the longitudinal spacing length. When the longitudinal spacing abutment block 54 and the longitudinal spacing extension portion 51 are in the appropriate position, the longitudinal spacing engagement limiter 56 is engaged by rotating the second abutment nut 55, thereby achieving the effect of adjusting the length of the foot. In this way, the pitch adjustment covers individual differences in foot length, utilizes thread pre-tightening and tooth engagement to resist axial dynamic loads, and enhances clinical controllability with the help of operational feedback and a scale system, breaking through the limitations of traditional rehabilitation equipment and upgrading the ankle pump booster from a "universal assistive tool" to a "personalized dynamic adaptation system."

[0052] In this embodiment, the longitudinal spacing engagement limit member 56 includes a third limiting tooth 561 provided on a side of the longitudinal spacing extension portion 51 close to the longitudinal spacing abutment block 54; and a fourth limiting tooth 562 provided on a side of the transverse spacing abutment block 44 close to the transverse spacing extension portion 41, and the third limiting tooth 561 and the fourth limiting tooth 562 are engaged with each other.

[0053] This arrangement allows precise control of the length of longitudinal spacing adjustment by meshing the third limiting teeth 561 on the longitudinal spacing abutment block 54 with the fourth limiting teeth 562 on the longitudinal spacing extension 51, achieving more precise positioning and preventing sliding and retraction. The tooth engagement structure provides mechanical locking, preventing the risk of slippage due to misoperation or external forces. It also ensures more uniform pressure distribution across the contact surface, reducing wear.

[0054] In this embodiment, the height adjustment assembly 3 includes a movable frame 31 arranged above the leg fixing frame 11, and a height extension cavity 33 is provided on the movable frame 31; a height extension portion 32 is connected to the leg fixing frame 11 and extends into the height extension cavity 33; a height abutment cavity 34 is provided in the movable frame 31, and the height abutment cavity 34 is connected to the height extension cavity 33; a height abutment block 35 is provided in the height abutment cavity 34, and a third abutment nut 36 is provided through the movable frame 31 and is rotatably connected to the height abutment block 35. The third abutment nut 36 is threadedly connected to the movable frame 31, and the height abutment block 35 and the height extension portion 32 are limited by a height engagement limiter 37.

[0055] With this arrangement, when adjusting the longitudinal spacing adjustment assembly 5 to adjust the leg length, the third abutment nut 36 is rotated to separate the height abutment block 35 and the height extension portion 32 in the height abutment cavity 34, thereby expanding and contracting the length of the height extension portion 32 in the height extension cavity 33, thereby achieving the effect of adjusting the height length. When the height abutment block 35 and the height extension portion 32 are in the proper position, the third abutment nut 36 is rotated to engage the height abutment block 35 and the height extension portion 32 via the height engagement limiter 37, thereby achieving the effect of adjusting the leg length. In this way, precise adjustment is achieved through the rotation of the nut, allowing for fine adjustments to meet different leg lengths and rehabilitation needs. The expansion and contraction movement of the height extension portion 32 is linear, avoiding the angular deviation and instability caused by traditional rotational or sliding adjustments.

[0056] In this embodiment, the height engagement limiter 37 includes a fifth limiting tooth 371 provided on a side of the height extension portion 32 close to the height abutment block 35; and a sixth limiting tooth 372 provided on a side of the height abutment block 35 close to the height extension portion 32, and the fifth limiting tooth 371 and the sixth limiting tooth 372 are engaged with each other.

[0057] This arrangement allows precise control of the height adjustment length by meshing the fifth limiting tooth 371 on the height abutment block 35 with the sixth limiting tooth 372 on the height extension portion 32, achieving more precise positioning and preventing sliding and retraction. The meshing of the fifth limiting tooth 371 and the sixth limiting tooth 372 creates a "stepped engagement," converting any sliding movement of the height extension portion 32 into a rigid engagement between the teeth, effectively counteracting downward or upward movement caused by gravity and inertia.

[0058] In this embodiment, an elastic bandage 6 is arranged on the height surface between the first adjustment block 211 and the second adjustment block 212 and the third adjustment block 213 and the fourth adjustment block 214, and a protective pad 61 is arranged on the first adjustment block 211, the second adjustment block 212, the third adjustment block 213 and the fourth adjustment block 214.

[0059] With this arrangement, the elastic bandage 6 drives the entire base plate 21 to rotate during movement, preventing stress concentration, while the protective pad 61 protects the user's foot. Thus, the elastic bandage 6 provides appropriate tension during foot movement, guiding the base plate 21 to rotate naturally with the foot, avoiding the discomfort and restricted movement caused by rigid fixation. The thickened protective pad 61 is placed at key points where the foot contacts the base plate 21, effectively alleviating localized pressure.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An adjustable ankle pump exercise booster, comprising a calf fixing mechanism (1) and a foot fixing mechanism (2) longitudinally spaced from the calf fixing mechanism (1), wherein the foot fixing mechanism (2) and the calf fixing mechanism (1) are hingedly connected; characterized in that: The calf fixing mechanism (1) comprises two leg fixing frames (11) arranged in parallel and a calf covering adjustment component (12) connected to the leg fixing frames (11), and the two leg fixing frames (11) are respectively provided with a height adjustment component (3); the foot fixing mechanism (2) comprises a base plate (21) and a foot elastic band (22) connected to the base plate (21), the base plate (21) and the leg fixing frames (11) are hinged via a connecting strip (13), and the base plate (21) is provided with a lateral spacing adjustment component (4) and a longitudinal spacing adjustment component (5) for promoting the base plate (21).

2. The adjustable ankle pump exercise booster according to claim 1, characterized in that: The calf covering adjustment component (12) comprises a calf inner diameter elastic band (122) provided at the front end of the fixing frame and a calf outer diameter elastic band (121) provided at the rear end of the fixing frame.

3. The adjustable ankle pump exercise booster according to claim 1, characterized in that: The bottom plate (21) includes a first adjustment block (211) and a second adjustment block (212) rotatably connected to the connecting bar (13), a third adjustment block (213) arranged at the front end of the first adjustment block (211), and a fourth adjustment block (214) arranged at the front end of the second adjustment block (212); a transverse spacing adjustment component (4) is arranged between the first adjustment block (211), the second adjustment block (212), the third adjustment block (213), and the fourth adjustment block (214); and a longitudinal spacing adjustment component (5) is arranged between the first adjustment block (211), the third adjustment block (213), the second adjustment block (212), and the fourth adjustment block (214).

4. An adjustable ankle pump exercise booster according to claim 1, 2 or 3, characterized in that: The transverse spacing adjustment component (4) includes a transverse spacing extension portion (41) provided on a first adjustment block (211) and a second adjustment block (212), wherein the first adjustment block (211) and the second adjustment block (212) are both provided with a transverse spacing extension cavity (42) on their transverse spacing end faces, and both ends of the transverse spacing extension portion (41) extend into the transverse spacing extension cavity (42) on the first adjustment block (211) and the second adjustment block (212), and the first adjustment block (211) and the second adjustment block (212) are both provided with a transverse spacing abutment cavity (43), and the transverse spacing The abutment cavity (43) is connected to the transverse spacing extension cavity (42); a transverse spacing abutment block (44) is provided in the transverse spacing abutment cavity (43); a first abutment nut (45) is provided through the first adjustment block (211) and the second adjustment block (212) and is rotatably connected to the transverse spacing abutment block (44); the first abutment nut (45) is connected to the first adjustment block (211) and the second adjustment block (212) by a thread; the transverse spacing abutment block (44) and the transverse spacing extension portion (41) are limited by a transverse spacing engagement limiter (46).

5. The adjustable ankle pump exercise booster according to claim 4, characterized in that: The transverse spacing engagement limiting member (46) comprises a first limiting tooth (461) provided on a side of the transverse spacing extension portion (41) close to the transverse spacing abutting block (44); and a second limiting tooth (462) provided on a side of the transverse spacing abutting block (44) close to the transverse spacing extension portion (41), wherein the first limiting tooth (461) and the second limiting tooth (462) are engaged with each other.

6. The adjustable ankle pump exercise booster according to claim 3, characterized in that: The longitudinal spacing adjustment assembly (5) comprises a longitudinal spacing extension portion (51) provided on a first adjustment block (211); the longitudinal spacing extension cavity (52) is provided on a longitudinal spacing end surface of the third adjustment block (213); the longitudinal spacing extension portion (51) extends into the longitudinal spacing extension cavity (52) on the third adjustment block (213); a longitudinal spacing abutment cavity (53) is provided on the third adjustment block (213); the longitudinal spacing abutment cavity (53) is communicated with the longitudinal spacing extension cavity (52); a longitudinal spacing abutment block (54) is provided in the longitudinal spacing abutment cavity (53); a second abutment nut (55) is provided through the third adjustment block (213) and is rotatably connected to the longitudinal spacing abutment block (54); the second abutment nut (55) is threadedly connected to the third adjustment block (213); the longitudinal spacing abutment block (54) and the longitudinal spacing extension portion (51) are limited by a longitudinal spacing engagement limiter (56).

7. The adjustable ankle pump exercise booster according to claim 6, characterized in that: The longitudinal spacing engagement limiting member (56) comprises a third limiting tooth (561) provided on a side of the longitudinal spacing extension portion (51) close to the longitudinal spacing abutment block (54); and a fourth limiting tooth (562) provided on a side of the transverse spacing abutment block (44) close to the transverse spacing extension portion (41), wherein the third limiting tooth (561) and the fourth limiting tooth (562) are engaged with each other.

8. The adjustable ankle pump exercise booster according to claim 1, characterized in that: The height adjustment assembly (3) includes a movable frame (31) arranged above the leg fixing frame (11), the movable frame (31) being provided with a height extension cavity (33); a height extension portion (32) connected to the leg fixing frame (11) and extending into the height extension cavity (33); a height abutment cavity (34) being provided in the movable frame (31), the height abutment cavity (34) being communicated with the height extension cavity (33); a height abutment block (35) being provided in the height abutment cavity (34), a third abutment nut (36) being provided through the movable frame (31) and being rotatably connected to the height abutment block (35), the third abutment nut (36) being connected to the movable frame (31) by a threaded connection, and the height abutment block (35) and the height extension portion (32) being limited by a height engagement limiting member (37).

9. The adjustable ankle pump exercise booster according to claim 8, characterized in that: The height engagement limiting member (37) comprises a fifth limiting tooth (371) provided on a side of the height extension portion (32) close to the height abutment block (35); and a sixth limiting tooth (372) provided on a side of the height abutment block (35) close to the height extension portion (32), wherein the fifth limiting tooth (371) and the sixth limiting tooth (372) are engaged with each other.

10. The adjustable ankle pump exercise booster according to claim 3, characterized in that: An elastic bandage (6) is provided on a height surface between the first adjustment block (211), the second adjustment block (212), the third adjustment block (213), and the fourth adjustment block (214), and a protective pad (61) is provided on the first adjustment block (211), the second adjustment block (212), the third adjustment block (213), and the fourth adjustment block (214).

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