Pedal fixing device and rehabilitation training instrument

Abstract

The invention relates to the technical field of rehabilitation instruments, in particular to a pedal fixing device and a rehabilitation training instrument.The pedal fixing device comprises a pedal body, a limiting assembly and an adjusting mechanism; the pedal main body is used for supporting feet of a user; the limiting assembly is movably arranged on the pedal body and used for limiting the front-back sliding of the foot. The adjusting mechanism is connected with the pedal main body and the limiting assembly, and the adjusting mechanism is configured to be capable of adjusting the length of the limiting assembly and / or adjusting the position of the limiting assembly on the pedal main body; the pedal fixing device provided by the invention can facilitate limiting adjustment of feet in the front-back direction and is good in adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of health equipment, and in particular to a pedal fixing device and a rehabilitation training device. Background Art

[0002] The main principle of rehabilitation therapy is to grasp the patient's active learning awareness and motivation, which is the key to determining the effect of rehabilitation training. The earlier the recovery of hemiplegic limb function, the better the comprehensive recovery of cognition and language. Traditional rehabilitation training models often cannot guarantee the intensity of training, the persistence of endurance, and the standardization of training, and it is difficult to fully understand and grasp the mechanism of action of exercise training, thus affecting the quality and efficiency of rehabilitation; therefore, rehabilitation training equipment came into being, providing patients with a more scientific, efficient and safe rehabilitation training method.

[0003] However, the pedal fixing device of the traditional rehabilitation training equipment has the following defects:

[0004] First, it is unable to limit forward and backward sliding. Most existing devices use straps to fix the left and right directions of the feet, but there is no effective limit in the forward and backward directions, which causes the feet to slide during training and cause injuries such as plantar fasciitis and Achilles tendonitis. Second, the adaptability is poor: the fixed-size footrest fixing device cannot adapt to different foot lengths, affecting the user experience and training effect. Third, it cannot be completed with one hand and requires the help of others, which limits the convenience of adjustment during use. Summary of the invention

[0005] In view of the above shortcomings of the prior art, an object of the present invention is to provide a pedal fixing device and a rehabilitation training device which can facilitate the front-to-back direction limit adjustment of the foot and has good adaptability and can be easily adjusted with one hand.

[0006] To achieve the above-mentioned object and other related objects, the present invention provides a pedal fixing device, comprising:

[0007] A pedal body, used for supporting the user's feet;

[0008] A limit assembly, movably arranged on the pedal body and used to limit the forward and backward sliding of the foot;

[0009] An adjusting mechanism connects the pedal body and the limiting assembly, and the adjusting mechanism is configured to be able to adjust the length of the limiting assembly itself and / or adjust the position of the limiting assembly on the pedal body.

[0010] As an optional embodiment of the present invention, the limiting assembly includes a forefoot limiting portion and a heel limiting portion;

[0011] The forefoot limiting portion and / or the heel limiting portion are slidably connected to the pedal body along a first direction, and the first direction is the front-rear direction of the foot on the pedal body.

[0012] As an optional embodiment of the present case, the forefoot limiting portion is slidably connected to the pedal body along a first direction via a guide member, and the guide member is arranged at the bottom and / or both sides of the pedal body.

[0013] As an optional embodiment of the present invention, the adjustment mechanism includes a traction assembly connected to the forefoot limiting portion, and the traction assembly includes:

[0014] A traction rope passes through the pedal body along a first direction and is connected to the forefoot limiting portion;

[0015] A tightening mechanism is arranged on the pedal body and connected to the traction rope, and the tightening mechanism is configured to tighten or loosen the traction rope.

[0016] As an optional embodiment of the present case, an elastic reset component is provided between the limit assembly and the pedal body.

[0017] As an optional embodiment of the present invention, the adjustment mechanism includes an adjustment component connected to the heel limiter, and the adjustment component includes:

[0018] A connecting frame, arranged at the rear of the pedal body, the connecting frame being provided with threaded holes along a first direction;

[0019] A threaded rod passes through the threaded hole and is connected to the heel limiting portion.

[0020] As an optional embodiment of the present case, a nut is provided on the connecting frame, and the threaded hole is provided on the nut.

[0021] As an optional embodiment of the present case, the forefoot limiting portion is a hollow structure.

[0022] As an optional embodiment of the present case, the adjustment mechanism includes a visual scale mark for indicating the adjustment amount of the limit assembly.

[0023] To achieve the above-mentioned purpose and other related purposes, the present invention provides a rehabilitation training device, including the above-mentioned footrest fixing device.

[0024] In summary, the present invention effectively solves the problem of incorrect training posture and foot injury caused by the inability of the traditional pedal structure to limit the forward and backward sliding of the foot through the coordinated work of the pedal body, the limit assembly and the adjustment mechanism. In view of the disadvantage that the fixed-size pedal structure is difficult to adapt to the foot lengths of different users and affects the training effect, the adjustment mechanism of the present design can adjust the length of the limit assembly and / or its position on the pedal body to adapt to different foot sizes and positions. When the user's foot slides forward or backward, the limit assembly can better limit the amount of foot sliding, thereby avoiding or reducing the incidence of plantar fasciitis. The pedal fixing device of this case has strong adaptability and can adapt to the foot size of most people. It is also easy to wear and adjust, which effectively improves the convenience of wearing; and the user can complete the foot limit with one hand without the help of others, which greatly broadens the convenience of adjusting and using related equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of a footrest fixing device in an optional embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection between the adjustment mechanism and the pedal body in an optional embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the internal structure of the adjustment mechanism in an optional embodiment of the present invention;

[0029] Figure 4 It is a schematic structural diagram of a pedal fixing device in a first embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of the bottom structure of the footrest fixing device in the second embodiment of the present invention;

[0031] Figure 6 It is a front structural schematic diagram of a pedal fixing device in a second embodiment of the present invention;

[0032] Figure 7 for Figure 6 A magnified view of the structure at A;

[0033] It should be understood that the drawings in the drawings of the present specification are schematic diagrams of structures, and the illustrated footrest fixing device is only one of the footrest fixing devices that are symmetrical on both sides;

[0034] Component number description: pedal body 1, limiting assembly 2, forefoot limiting part 21, heel limiting part 22, guide member 23, guide rail 24, elastic reset part 25, adjustment mechanism 3, traction assembly 31, traction rope 311, tightening mechanism 312, base limiting part 3121, rotating button 3122, adjustment assembly 32, connecting frame 321, threaded hole 3211, threaded rod 322. DETAILED DESCRIPTION

[0035] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, not to limit the scope of protection of the present invention. The test methods for specific adjustments not specified in the following examples are usually adjusted according to conventional methods, or according to the adjustments recommended by the manufacturers.

[0036] See also Figures 1 to 7 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limited adjustments that can be implemented in the present invention, so they have no substantial technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0037] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any methods, equipment and materials of the prior art similar or equivalent to the methods, equipment and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0038] See also Figure 1-3The present invention provides a pedal fixing device, comprising a pedal body 1, a limiting component 2 and an adjusting mechanism 3; the pedal body 1 is used to support the user's foot; the limiting component 2 is movably arranged on the pedal body 1, and is used to limit the forward and backward sliding of the foot; the adjusting mechanism 3 connects the pedal body 1 and the limiting component 2, and the adjusting mechanism 3 is configured to be able to adjust the length of the limiting component 2 itself and / or adjust the position of the limiting component 2 on the pedal body 1 to adapt to different foot sizes and foot positions.

[0039] It should be noted that the pedal body 1 is made of steel, high-strength engineering plastics (such as nylon) or aluminum alloy or cloth or flexible rubber and other materials that meet the use requirements. The surface of the pedal body 1 that fits the foot is provided with anti-skid patterns to prevent the toes from sliding. The limiting assembly 2 is generally arranged along the front-to-back direction of the foot on the pedal body 1. The limiting assembly 2 may include, for example, a U-shaped limiting frame. The limiting assembly 2 may be an integral structure or a split structure. For example, the limiting assembly 2 includes a forefoot limiting portion 21, a heel limiting portion 22, and a foot side limiting portion; for example, when the limiting assembly 2 is a split structure, the forefoot limiting portion 21 and / or the heel limiting portion 22 and / or the foot side limiting portion are respectively movably connected to the pedal body 1. Polyurethane cushions are provided on both sides of the limiting assembly 2 to reduce the impact force when the user's foot moves. It should be understood that the design shape of the pedal body 1 and the limit assembly 2 should fully consider the ergonomic principles to fit the foot contours of different users and reduce foot fatigue. For example, the adjustment mechanism 3 is a gear rack adjustment mechanism, a hydraulic adjustment mechanism, a spiral adjustment mechanism, etc., which can realize the length adjustment of the limit assembly 2 itself and / or the position adjustment of the limit assembly 2 on the pedal body 1; for example, the gear rack adjustment mechanism is composed of a gear and a rack meshed with it. By rotating the gear, the rack will move accordingly, thereby driving the limit assembly 2 or the pedal body 1 connected thereto to adjust the position, so that the length and / or position of the limit assembly 2 can be accurately controlled to adapt to the changes in the foot size and position requirements of different patients. For example, the hydraulic adjustment mechanism uses the incompressibility of the liquid to transmit power and realize position adjustment. The hydraulic adjustment mechanism is composed of components such as a hydraulic cylinder, a piston, an oil pipe and a control valve. When the user needs to adjust the length or position of the limit assembly 2, the flow direction and flow rate of the hydraulic oil are controlled by the control valve to promote the movement of the piston, thereby driving the limit assembly 2 to retract or move. For example, the spiral adjustment mechanism mainly relies on the rotational movement of the thread to achieve length and / or position adjustment. The spiral adjustment mechanism consists of a screw, a nut and related connecting parts. When the screw rotates relative to the nut, due to the action of the thread, the screw will move along the axial direction, thereby driving the parts connected to it to adjust their position.

[0040] The present invention solves the technical problem that the traditional pedal structure cannot limit the forward and backward sliding of the foot, resulting in incorrect training posture and foot injuries, through the coordinated work of the pedal body 1, the limit component 2 and the adjustment mechanism 3; since the fixed-size pedal structure cannot adapt to the foot lengths of different users, affecting the training effect, the present case adjusts the own length of the limit component 2 and / or adjusts the position of the limit component 2 on the pedal body 1 through the adjustment mechanism 3 to adapt to different foot sizes and foot positions. When the user's foot slides forward or backward, the limit component 2 can better limit the sliding amount of the foot, thereby avoiding or reducing the incidence of plantar fasciitis; the pedal fixing device of the present case has good adaptability, can adapt to the foot sizes of most people, and is easy to wear and adjust, effectively improving the convenience of wearing.

[0041] See also Figure 4 or Figure 5 As one of the optional embodiments of the present invention, the limit assembly 2 is slidably connected to the pedal body 1 through a guide rail 24, and the guide rail 24 is a symmetrically distributed guide rail 24. The guide rail 24 is fixedly connected to the bottom of the pedal body 1 or both sides of the pedal body 1. The limit assembly 2 is slidably connected to the guide rail 24 through a guide member 23 to ensure that the forefoot limit portion 21 remains horizontal during movement.

[0042] See also Figure 1 As one optional embodiment of the present invention, the limiting assembly 2 includes a forefoot limiting portion 21 and / or a heel limiting portion 22;

[0043] The forefoot limiting portion 21 and / or the heel limiting portion 22 are slidably connected to the pedal body 1 along a first direction, where the first direction is the front-rear direction of the foot on the pedal body 1 .

[0044] It should be noted that the forefoot limiter 21 and the heel limiter 22 of the present invention can be flexibly adjusted on the pedal body 1 according to the needs of the user. For example, the forefoot limiter 21 and / or the heel limiter 22 can be slid forward or backward along the first direction, so that the user can adjust the position of the limiter according to personal needs and foot size, thereby obtaining a more comfortable foot support and wrapping feeling, and improving the versatility and practicality of the product; and by accurately adjusting the position of the forefoot limiter 21 and / or the heel limiter 22, the stability of the user on the pedal fixing device can be ensured, and the safety hazards caused by foot sliding can be reduced.

[0045] See also Figure 4 or Figure 5 As one of the optional embodiments of the present invention, the forefoot limiting portion 21 is slidably connected to the pedal body 1 along a first direction through a guide member 23, and the guide member 23 is arranged at the bottom and / or both sides of the pedal body 1.

[0046] It should be noted that a guide rail 24 is provided on the pedal body 1, and the guide member 23 is a slider or a guide rod slidably connected to the guide rail 24. The guide rail 24 is fixed to the bottom of the pedal body 1 by welding, bolts, screws or injection molding, or integrated into the pedal body 1 to achieve a hidden compact structure design.

[0047] See also Figure 1-3 As one optional embodiment of the present invention, the adjustment mechanism 3 includes a traction assembly 31 connected to the forefoot limiting portion 21, and the traction assembly 31 includes a traction rope 311 and a tightening mechanism 312;

[0048] The traction rope 311 passes through the pedal body 1 along a first direction and is connected to the forefoot limiting portion; the tightening mechanism 312 is disposed on the pedal body 1 and is connected to the traction rope 311 , and the tightening mechanism 312 is configured to be able to tighten or loosen the traction rope 311 .

[0049] It should be noted that the traction rope 311 is, for example, a traction rope or a steel wire rope braided with nylon rope or Kevlar fiber, for example, the diameter is generally 3 mm, and the two ends are connected to the forefoot limiting portion 21 through stainless steel buckles. The traction rope 311 can be provided with one or more. For example, when one traction rope 311 is provided, the two ends of the traction rope 311 can be selected to pass through the bottom or both sides of the pedal body 1 along the first direction and be connected to the forefoot limiting portion 21. When the traction rope 311 is fully tightened, the forefoot limiting portion 21 can be in contact with the portion where the traction rope 311 passes through the pedal body 1. The main function of the traction rope 311 is to transmit the tension of the tightening mechanism 312, so that the forefoot limiting portion 21 can move forward and backward along the pedal body 1. By adjusting the length of the traction rope 311, the position of the forefoot limiting portion 21 can be flexibly changed to adapt to the foot size and shape of different users. The tightening mechanism 312 is disposed at a suitable position of the pedal body 1 and is tightly connected to the traction rope 311. The tightening mechanism 312 includes one or more elements for controlling the tension of the traction rope 311, such as a rotary buckle, a rotatable snap button, a rotary button, a rotary buckle, a rotary pressure buckle, a knob buckle, a pulley or a knob, etc., to facilitate user operation while ensuring a smooth and accurate tightening process. For example, the tightening mechanism 312 is a worm gear tightening mechanism, which includes a worm, a worm wheel, and a crank. The worm is connected to the traction rope 311. When the crank is shaken, the worm will rotate and drive the worm wheel to rotate. Due to the meshing relationship between the worm and the worm wheel, the worm wheel will also rotate. According to the rotation direction and thread structure of the worm wheel, the traction rope 311 will be tightened or loosened accordingly. Please refer to Figure 2-3 or Figure 7For example, the tightening mechanism 312 is a rotating button 3122 assembly, the rotating button 3122 includes a base limiting portion 3121 connected to the pedal body 1 and a rotating button 3122, the traction rope 311 passes through the rotating button 3122 along the radial direction of the rotating button 3122, the rotating button 3122 can be rotatably limited on the base limiting portion 3121, a limiting block is set between the rotating button 3122 and the base limiting portion 3121, when the rotating button 3122 is in the state of being locked, the rotating button 3122 is locked, and the rotating button 3122 is locked. When the rotating button 3122 and the base limiting part 3121 are close to each other in the axial direction of the rotating button 3122, the limiting block can prevent the rotating button 3122 from being limited. When the rotating button 3122 and the base limiting part 3121 are far away from each other in the axial direction of the rotating button 3122, the rotating button 3122 is disengaged from the limiting block of the base limiting part 3121, so that the rotating button 3122 can be rotated to loosen or tighten the traction rope 311. A planetary gear set can be built into the tightening mechanism 312 to improve the efficiency of tightening or loosening. The rope is tightened when rotating clockwise, and locked by a ratchet mechanism when rotating counterclockwise to prevent backing off, thereby improving the convenience of one-handed operation of the user. In addition, the rotating button 3122 can be replaced by an electric knob, driven by a micro motor (such as power W5), and a built-in chip can be used to support remote control by a mobile phone APP or the APP that comes with the rehabilitation training device; thereby solving the problem of laborious conventional manual adjustment and poor user experience, and no complicated tools or skills are required. In this case, the traction rope 311 and the tightening mechanism 312 are set to improve the convenience of operation and the adjustment efficiency of the foot-operated fixing device.

[0050] See also Figure 5 As one of the optional embodiments of the present invention, an elastic reset component 25 is provided between the limit assembly 2 and the pedal body 1, for resetting the forefoot limit portion 21 to an initial position when the traction assembly 31 is released.

[0051] It should be noted that the elastic reset component 25 is, for example, a spring or an elastic rope or other elastic components that meet the use requirements. The two ends of the spring are fixed to the limit assembly 2 and the pedal body 1 through a clamp ring to form a bidirectional elastic constraint. Since the reset of the traditional device requires manual operation, the efficiency is low, while the limit assembly 2 of this case can be automatically reset by the elastic reset component 25, which improves the reset efficiency and thus improves the convenience of operation.

[0052] See also Figure 5 As one of the optional embodiments of the present invention, the elastic reset component 25 is a spring, one end of the spring is fixed to the limit assembly 2, and the other end is fixed to the pedal body 1. The spring is a spring sleeve structure, and a guide rod can be provided inside to prevent the spring from lateral bending; a buffer rubber pad is added between the spring and the limit assembly 2 to reduce impact noise.

[0053] See also Figure 1-3 As one of the optional embodiments of the present invention, the adjustment mechanism 3 includes an adjustment component 32 connected to the heel limit portion 22, and the adjustment component 32 includes a connecting frame 321 and a threaded rod 322; the connecting frame 321 is arranged at the rear of the pedal body 1, and the connecting frame 321 is provided with a threaded hole 3211 along the first direction; the threaded rod 322 passes through the threaded hole 3211 and is connected to the heel limit portion 22.

[0054] It should be noted that the threaded hole 3211 can be directly set on the connecting frame 321, or can be fixed on the connecting frame 321 through a nut to form the threaded hole 3211; the threaded rod 322 is threadedly matched with the threaded hole 3211, and the heel limiter 22 is moved along the first direction by rotating the threaded rod 322. The present invention solves the problem that the heel fixing position of the traditional footrest fixing device is single and cannot adapt to different foot shapes and training requirements. The present invention realizes the adjustable heel position through the setting of the heel adjustment component, and improves the convenience of use and the efficiency of adjustment.

[0055] See also Figure 1 Or 6, as one of the optional embodiments of the present invention, the forefoot limiting portion 21 is a hollow structure.

[0056] It should be noted that the hollow structure of the present case can adopt a honeycomb hollow design, for example, and the material is aluminum alloy or plastic or leather material or carbon fiber composite material or cloth, etc., which reduces most of the weight and makes the overall structure lightweight; the hollow structure allows air to flow freely in the forefoot area, which helps to keep the feet dry, reduce sweating and odor, and by improving ventilation, the hollow structure can effectively reduce the accumulation of moisture in the feet, thereby reducing foot problems caused by humid environments, such as fungal infections, etc.; at the same time, the forefoot limiting portion 21 of the hollow structure can facilitate the user to see the wearing condition of the forefoot, making it convenient for the user to wear the forefoot limiting portion 21.

[0057] As an optional embodiment of the present invention, the adjustment mechanism 3 includes a visual scale mark for indicating the adjustment amount of the limit assembly 2.

[0058] It should be noted that the visual scale marks can, for example, be laser engraved with scale lines on the surface of the guide rail 24 or the slide rail or the tightening mechanism 312 and coated with fluorescent paint (visible at night). A digital display module integrated with an LCD screen can also be provided to display the adjustment amount and the remaining stroke in real time, thereby solving the problem that it is difficult for users to intuitively grasp the adjustment progress, which may easily lead to over- or under-adjustment. In this case, through the setting of visual scale marks, the user can remember the current adjustment size after trying on the foot fixing device for the first time, which is convenient for quick adjustment next time (when the foot size does not increase too much), thereby improving ease of use.

[0059] The footrest fixing device of this case can make the adjustment range cover most or all user needs based on ergonomic data. The telescopic or threaded guide rod locking can be used to achieve stepless adjustment, thus solving the problem that the traditional footrest fixing device has a narrow adjustment range and cannot meet the needs of special groups of people, and improving the application range of the footrest fixing device.

[0060] The present invention also provides a rehabilitation training device, including the pedal fixing device, and the rehabilitation training device is, for example, a lower limb joint training machine, a gait training machine, an elliptical machine, a spinning bike or other devices that meet the use requirements.

[0061] It should be noted that, for example, the pedal fixing device of the lower limb joint training machine or gait training machine is linked with the gait simulation module to automatically adjust the limit pressure according to the patient's muscle strength. The elliptical machine can be integrated with a heart rate sensor to dynamically adjust the tightness of the limit device according to the user's heart rate. The spinning bike can match the resistance level through a torque sensor. In addition, the pedal fixing device can also be applied to rowing machines, mountain climbing machines and other equipment.

[0062] In this case, the footrest fixing device can effectively fix the user's feet, prevent the feet from sliding or shifting during training, prevent unstable training and accidental injuries, protect key parts such as ankle joints, and reduce the risk of sports injuries. The length of the footrest fixing device can be adjusted according to the user's own situation to meet different training needs and achieve more accurate training control. The design of the footrest fixing device is ergonomic, allowing users to maintain a comfortable posture during training and reduce fatigue. Through the limit component 2, the training can be made more stable, and the comfort and convenience of use can be improved. Long-term use of the device for training can effectively exercise the thigh, calf and ankle muscles, and enhance athletic ability and stability. With the help of the heel adjustment component, traction rope 311, rotating button 3122, slide rail, etc. to adjust the length of the footrest fixing device, the footrest fixing device has significant results in improving sports stability and safety, optimizing the use effect and experience, and promoting the adaptation of rehabilitation training equipment to different user needs. These effects have a positive effect on patient rehabilitation and fitness people's exercise process, which helps to improve exercise effects, reduce sports risks and promote user health.

[0063] In summary, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A pedal fixing device, characterized in that: include: A pedal body, used for supporting the user's feet; A limit assembly, movably arranged on the pedal body and used to limit the forward and backward sliding of the foot; An adjusting mechanism connects the pedal body and the limiting assembly, and the adjusting mechanism is configured to be able to adjust the length of the limiting assembly itself and / or adjust the position of the limiting assembly on the pedal body.

2. The footrest fixing device according to claim 1, characterized in that: The limiting assembly includes a forefoot limiting portion and / or a heel limiting portion; The forefoot limiting portion and / or the heel limiting portion are slidably connected to the pedal body along a first direction, and the first direction is the front-rear direction of the foot on the pedal body.

3. The footrest fixing device according to claim 2, characterized in that: The forefoot limiting portion is slidably connected to the pedal body along a first direction via a guide member, and the guide member is arranged at the bottom and / or both sides of the pedal body.

4. The footrest fixing device according to claim 2, characterized in that: The adjustment mechanism includes a traction assembly, and the traction assembly includes: A traction rope passes through the pedal body along a first direction and is connected to the forefoot limiting portion; A tightening mechanism is arranged on the pedal body and connected to the traction rope, and the tightening mechanism is configured to tighten or loosen the traction rope.

5. The footrest fixing device according to claim 1, characterized in that: An elastic reset component is provided between the limiting assembly and the pedal body.

6. The footrest fixing device according to claim 2, characterized in that: The adjusting mechanism comprises an adjusting component, and the adjusting component comprises: A connecting frame, arranged at the rear of the pedal body, the connecting frame being provided with threaded holes along a first direction; A threaded rod passes through the threaded hole and is connected to the heel limiting portion.

7. The footrest fixing device according to claim 6, characterized in that: The connecting frame is provided with a nut, and the threaded hole is provided on the nut.

8. The footrest fixing device according to claim 2, characterized in that: The forefoot limiting portion is a hollow structure.

9. The footrest fixing device according to claim 1, characterized in that: The adjustment mechanism includes a visual scale mark for indicating the adjustment amount of the limit assembly.

10. A rehabilitation training device, characterized in that: It comprises the pedal fixing device described in any one of claims 1-9.

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