Lower limb passive joint motion range and gait training instrument for small animals

Abstract

The utility model relates to the technical field of passive exercise training equipment, and discloses a lower limb passive joint motion range and gait training instrument for small animals, which comprises a base and a support frame fixedly connected to the top end of the base, a movable fixing mechanism is arranged at the top end of the base, and an adjusting limiting mechanism is arranged above the movable fixing mechanism. A shifting plate is shifted to drive movement and extrudes a first spring at the same time, so that the outer wall of a clamping block is separated from the inner wall of a clamping groove, then a limiting plate is pushed forwards to drive a sliding plate to move forwards, then the legs of a rat are placed in the sliding plate, the shifting plate is loosened, and the first spring rebounds to push the clamping block to move, so that the clamping block is clamped to the inner wall of the clamping groove; then a limiting plate is pulled to drive a sliding plate to move, at the moment, the inner wall of a clamping groove extrudes the outer wall of a clamping block till the clamping block moves into the proper clamping groove, and therefore the leg of the rat is fixed, and the fixing stability of the leg of the rat in the rehabilitation moving process is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of passive motion training equipment, in particular to a lower limb passive joint activity and gait training device for small animals. Background Art

[0002] In recent years, the number of patients with spinal cord injury has gradually increased due to changes in social and environmental factors, making clinical and basic research on spinal cord injury increasingly important. Exercise training, as an effective rehabilitation method, can significantly improve patients' quality of life. However, the specific mechanism of action of exercise training is not yet fully understood, and with the diversification of treatment methods, the effectiveness and mechanism of exercise training combined with drug therapy still need further exploration.

[0003] Rats are an ideal animal model commonly used in spinal cord injury research. However, current passive training equipment for rats with spinal cord injury has some limitations. Some devices are inefficient and can only train a single rat; and commonly used treadmills, wheels, or flatbed training equipment can easily cause rats to have a dragging gait, affecting the training effect and may even cause additional injuries. In addition, current equipment has shortcomings when training severe spinal cord injury models or in the early stages of injury. Therefore, the development of an exercise training device that can overcome these limitations is of great significance to the development of spinal cord injury-related research. This device is designed to reduce the above-mentioned effects, provide more effective technical support for spinal cord injury research, promote in-depth related research and optimize rehabilitation treatment methods.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A lower limb passive joint range of motion and gait training device for small animals, comprising a base;

[0007] A support frame is fixedly connected to the top of the base, and a movable fixing mechanism is provided on the top of the base. An adjustment limit mechanism is provided above the movable fixing mechanism, and the movable fixing mechanism includes a rotating wheel arranged on the support frame:

[0008] The outer wall of the support frame is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a first transmission belt, the first transmission belt is rotatably arranged on the outer wall of the rotating wheel shaft away from one end of the motor, and the rotating shaft is rotatably arranged on the outer wall away from one end of the first transmission belt, and the other end of the second transmission belt is rotatably arranged on the outer wall of the rotating shaft of another rotating wheel, the outer wall of the rotating wheel shaft away from one end of the rotating wheel is fixedly connected to a rotating rod, the outer wall of the rotating rod is rotatably provided with a pedal, and the top of the pedal is fixedly connected There is a foot cover, the outer wall of the foot cover is provided with a through hole, the inner wall of the through hole is slidably provided with a slide, the outer wall of one end of the slide is fixedly connected to the limit plate, the outer wall of the foot cover is provided with a clamping hole, the inner wall of the clamping hole is provided with a sliding hole, the inner wall of the sliding hole is fixedly connected to a first spring, the first spring is fixedly connected to a sliding rod at one end away from the inner wall of the sliding hole, the sliding rod is fixedly connected to a clamping block at one end away from the first spring, the outer wall of the clamping block is fixedly connected to a dial plate, the outer wall of the other side of the slide is provided with a clamping groove, and the outer wall of the side of the slide with the clamping groove is movably arranged on the inner wall of the clamping hole.

[0009] As a preferred embodiment of the present utility model, the adjustment limit mechanism includes a pillar fixedly connected to the outer wall of the base, the top of the pillar is provided with a slide groove, the inner wall of the slide groove is slidably provided with an adjustment rod, the outer wall of the adjusting rod and the outer wall of the pillar are both provided with a positioning hole, and the inner wall of the positioning hole is provided with a positioning rod, and the positioning rod is fixedly connected to a pull plate at one end away from the positioning hole, and the pull plate is fixedly connected to a second spring at one end, and the second spring is fixedly connected to the outer wall of the pillar at one end away from the pull plate. The outer wall of the adjusting rod is fixedly connected to a support rod, and the outer wall of the support rod is fixedly connected to a supporting link, and the outer wall of the support link is fixedly connected to the first link, the first link is fixedly connected to a hook at one end away from the support link, and the other outer wall of the support link is fixedly connected to the second link, and the second link is fixedly connected to the placement plate at one end away from the support link.

[0010] As a preferred embodiment of the present invention, the number of the foot covers is ten, and the foot covers are distributed on the top of the pedal in a group of five in a bilaterally symmetrical structure.

[0011] As a preferred embodiment of the present invention, there are a plurality of engaging grooves, and the engaging grooves are evenly and equidistantly distributed on the outer wall of one side of the slide.

[0012] As a preferred embodiment of the present invention, an outer wall of the clamping block is provided with an inclined surface, and the outer wall of the clamping block fits snugly with the inner wall of the engaging groove.

[0013] As a preferred embodiment of the present invention, there are a plurality of positioning holes, and the positioning holes are evenly and equidistantly distributed on the outer walls of the adjusting rod and the support.

[0014] As a preferred embodiment of the present invention, the outer wall of the positioning rod fits snugly with the inner wall of the positioning hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The first spring is then pulled to move the slider backwards, and the slider drives the engaging groove to move. At this time, the inner wall of the engaging groove will squeeze the outer wall of the engaging block until the engaging block is moved into the appropriate engaging groove, thereby fixing the rat's leg and ensuring the fixed stability of the rat's leg during rehabilitation and movement.

[0017] According to the utility model, after the rat is placed, the rat is dressed in specially made clothes, and then the hook is hooked into the opening on the clothes. Then, the height of the adjusting rod can be adjusted according to the body size of the rat. When adjusting, the pull plate is pulled to drive the positioning rod to move outward. During the movement of the pull plate, the second spring will be driven to perform a stretching effect. At this time, the outer wall of the positioning rod will be separated from the inner wall of the positioning hole. Then, the height of the adjusting rod can be pulled up and down, thereby driving the height of the hook and the placement plate. After adjustment, the pull plate is released, and the rebound of the second spring drives the positioning rod to engage therewith, completing the positioning. The front paws of the rat can be placed on it through the placement plate, so that the height of the supporting connecting rod can be adjusted according to rats of different body sizes.

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached figure:

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top plan view of the structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the movable fixing mechanism of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the movable fixing mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the adjustment and limiting mechanism of the utility model.

[0025] In the figure: 1. base; 2. support frame; 31. movable fixing mechanism; 311. rotating wheel; 312. fixing plate; 313. motor; 314. first transmission belt; 315. rotating rod; 316. pedal; 317. foot cover; 318. slide plate; 319. limit plate; 3110. first spring; 3111. slide rod; 3112. dial plate; 3113. block; 3114. engaging groove; 3115. second transmission belt; 32. adjustment limit mechanism; 321. pillar; 322. adjustment rod; 323. positioning rod; 324. pull plate; 325. second spring; 326. positioning hole; 327. supporting connecting rod; 328. first connecting rod; 329. hook; 3210. second connecting rod; 3211. placement plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0027] like Figures 1 to 5As shown, a lower limb passive joint activity and gait training instrument for small animals includes a base 1, a support frame 2 fixedly connected to the top of the base 1, a movable fixing mechanism 31 is provided on the top of the base 1, and an adjustment limit mechanism 32 is provided above the movable fixing mechanism 31, the movable fixing mechanism 31 includes a rotating wheel 311 rotatably set on the support frame 2, a fixing plate 312 is fixedly connected to the outer wall of the support frame 2, a motor 313 is fixedly connected to the top of the fixing plate 312, a first transmission belt 314 is fixedly connected to the output end of the motor 313, the first transmission belt 314 is rotatably set on the outer wall of the rotating shaft of the rotating wheel 311 away from one end of the motor 313, and the rotating shaft 311 is rotatably set on the outer wall of the rotating wheel 311 away from one end of the first transmission belt 314. The other end of the second transmission belt 3115 is rotatably set on the outer wall of the rotating shaft of another rotating wheel 311, and the rotating shaft on the rotating wheel 311 is far away from the outer wall of the rotating shaft The cam 314 is provided with a latching slot 316 which is fixed to the cam 314a and 314b, and the latching slot 316 is provided with a latching slot 316b.

[0028] Furthermore, there are ten foot covers 317 , and the foot covers 317 are arranged in a group of five in a bilaterally symmetrical structure on the top of the pedal 316 , so that the left and right are divided into five groups, so that five rats can be trained at one time.

[0029] Furthermore, there are a plurality of engaging grooves 3114 , which are evenly and equidistantly distributed on one side outer wall of the slide plate 318 , so that multiple adjustments can be made to accommodate rats of different body shapes and leg circumferences.

[0030] Furthermore, the outer wall of the block 3113 is provided with an inclined surface, and the outer wall of the block 3113 fits snugly against the inner wall of the engaging groove 3114. The inclined surface can tighten the distance between the slide plate 318 and the foot cover 317, but can limit the forward movement of the slide plate 318, thereby facilitating adjustment of the distance between the slide plate 318 and the foot cover 317 according to the leg circumference of the rat.

[0031] The adjustment limit mechanism 32 includes a support 321 fixedly connected to the outer wall of the base 1, a slide groove is provided at the top of the support 321, an adjustment rod 322 is slidably provided on the inner wall of the slide groove, a positioning hole 326 is provided on the outer wall of the adjustment rod 322 and the support 321, a positioning rod 323 is provided on the inner wall of the positioning hole 326, and a pull plate 324 is fixedly connected to the end of the positioning rod 323 away from the positioning hole 326, and a second spring 325 is fixedly connected to the end of the pull plate 324. One end of 24 is fixedly connected to the outer wall of the pillar 321, the outer wall of the adjusting rod 322 is fixedly connected to a support rod, the outer wall of the support rod is fixedly connected to a supporting link 327, the outer wall of the supporting link 327 is fixedly connected to a first link 328, the end of the first link 328 away from the supporting link 327 is fixedly connected to a hook 329, the outer wall of the other supporting link 327 is fixedly connected to a second link 3210, and the end of the second link 3210 away from the supporting link 327 is fixedly connected to a placement plate 3211.

[0032] Furthermore, there are a plurality of positioning holes 326 , which are evenly and equidistantly distributed on the outer walls of the adjustment rod 322 and the support column 321 , so that the height of the supporting link 327 can be uniformly adjusted to suit rats of different sizes.

[0033] Furthermore, the outer wall of the positioning rod 323 fits snugly with the inner wall of the positioning hole 326 , thereby ensuring the stability of the positioning rod 323 being engaged in the inner wall of the positioning hole 326 .

[0034] The working principle of the passive joint range of motion and gait training device for small animals of the present embodiment is as follows: when fixing the leg of the rat, the dial plate 3112 is first moved to the left, so that the dial plate 3112 will drive the slide bar 3111 to move to the left, and at the same time, the first spring 3110 will be squeezed during the movement of the slide bar 3111, and the block 3113 at the other end of the slide bar 3111 will move to the left, so that the outer wall of the block 3113 will be separated from the outer wall of the slide plate 318. The inner wall of the engaging groove 3114 opened by the wall, the slide plate 318 will lose its limiting and fixing function at this time, and then the limiting plate 319 is pushed forward to drive the slide plate 318 to move forward so that the inner outer wall is away from the outer wall of the foot cover 317, and then the rat's legs can be placed therein, and then the rat's feet are in contact with the top of the pedal 316, and then the paddle 3112 is released, and the rebound of the first spring 3110 pushes the slide bar 3111 and the block 3113 to move to the right, so that the block 3113 113 is engaged with the inner wall of the engaging groove 3114, and then the limiting plate 319 is pulled according to the leg circumference of the rat's leg to drive the slide plate 318 to move backward, so that the slide plate 318 will drive the engaging groove 3114 to move. At this time, the inner wall of the engaging groove 3114 will squeeze the outer wall of the block 3113 until the block 3113 is moved into the appropriate engaging groove 3114, thereby fixing the rat's leg and ensuring the stability of the rat's leg during rehabilitation and movement. Then, by turning on the motor 313, its output end will drive the first transmission belt 314 to rotate, thereby driving the rotating wheel 311 to rotate. The rotation of the rotating wheel 311 will drive the second transmission belt 3115 to rotate, thereby driving the rotating wheel 311 on the other side to rotate. In this way, the rotating wheel 311 can drive the rotating rod 315 to rotate during the rotation process, thereby driving the pedal 316 to rotate. At this time, the rat's two feet will move back and forth and up and down rhythmically.

[0035] After the rat is placed, the rat is dressed in specially made clothes, and the hook 329 is hooked into the opening on the clothes. Then, the height of the adjusting rod 322 can be adjusted according to the size of the rat. When adjusting, the pull plate 324 is pulled to drive the positioning rod 323 to move outward. During the movement of the pull plate 324, the second spring 325 will be driven to stretch. At this time, the outer wall of the positioning rod 323 will be separated from the inner wall of the positioning hole 326. Then, the height of the adjusting rod 322 can be pulled up and down, thereby driving the height of the hook 329 and the placement plate 3211. After adjustment, the pull plate 324 is released, and the rebound of the second spring 325 drives the positioning rod 323 to engage therein, completing the positioning. The rat's front paws can be placed on it through the placement plate 3211.

Claims

1. A lower limb passive joint range of motion and gait training device for small animals, comprising a base (1); The support frame (2) is fixedly connected to the top of the base (1), and is characterized in that: A movable fixing mechanism (31) is provided at the top of the base (1), an adjustment limit mechanism (32) is provided above the movable fixing mechanism (31), and the movable fixing mechanism (31) includes a rotating wheel (311) rotatably provided on the support frame (2): The outer wall of the support frame (2) is fixedly connected to a fixing plate (312), the top of the fixing plate (312) is fixedly connected to a motor (313), the output end of the motor (313) is fixedly connected to a first transmission belt (314), the first transmission belt (314) is rotatably arranged on the outer wall of the rotating shaft of the rotating wheel (311) at one end away from the motor (313), the rotating shaft is rotatably arranged on the outer wall of the rotating shaft at one end away from the first transmission belt (314), the other end of the second transmission belt (3115) is rotatably arranged on the outer wall of the rotating shaft of another rotating wheel (311), the outer wall of the rotating shaft at one end away from the rotating wheel (311) is fixedly connected to a rotating rod (315), the outer wall of the rotating rod (315) is rotatably arranged to have a pedal (316), the top of the pedal (316) is fixedly connected to a foot cover (317), the outer wall of the foot cover (317) is provided with a through hole, the inner wall of the through hole is slidably provided with a slide plate (318), the outer wall of one end of the slide plate (318) is fixedly connected to the limiting plate (319), the outer wall of the foot cover (317) is provided with a clamping hole, the inner wall of the clamping hole is provided with a sliding hole, the inner wall of the sliding hole is fixedly connected to a first spring (3110), the first spring (3110) is fixedly connected to a sliding rod (3111) at one end away from the inner wall of the sliding hole, the sliding rod (3111) is fixedly connected to a clamping block (3113) at one end away from the first spring (3110), the outer wall of the clamping block (3113) is fixedly connected to a dial plate (3112), the outer wall of the other side of the slide plate (318) is provided with a clamping groove (3114), and the outer wall of the side of the slide plate (318) provided with the clamping groove (3114) is movably provided on the inner wall of the clamping hole.

2. A lower limb passive joint range of motion and gait training device for small animals according to claim 1, characterized in that: The regulating and limiting mechanism (32) includes a pillar (321) fixedly connected to the outer wall of the base (1), a slide groove is provided at the top of the pillar (321), an regulating rod (322) is slidably provided on the inner wall of the slide groove, a positioning hole (326) is provided on the outer wall of the regulating rod (322) and the outer wall of the pillar (321), a positioning rod (323) is provided on the inner wall of the positioning hole (326), and the positioning rod (323) is fixedly connected to a pull plate (324) at one end away from the positioning hole (326), and a second spring (325) is fixedly connected to one end of the pull plate (324), and the second spring (325) is fixedly connected to the outer wall of the positioning hole (326). One end of the pull plate (324) is fixedly connected to the outer wall of the pillar (321); the outer wall of the adjustment rod (322) is fixedly connected to a support rod; the outer wall of the support rod is fixedly connected to a support link (327); the outer wall of the support link (327) is fixedly connected to a first link (328); one end of the first link (328) away from the support link (327) is fixedly connected to a hook (329); the other outer wall of the support link (327) is fixedly connected to a second link (3210); and one end of the second link (3210) away from the support link (327) is fixedly connected to a placement plate (3211).

3. The lower limb passive joint range of motion and gait training device for small animals according to claim 1, characterized in that: The number of the foot covers (317) is ten, and the foot covers (317) are distributed on the top of the pedal (316) in a group of five in a bilaterally symmetrical structure.

4. The lower limb passive joint range of motion and gait training device for small animals according to claim 1, characterized in that: There are a plurality of the engaging grooves (3114), and the engaging grooves (3114) are evenly and equidistantly distributed on the outer wall of one side of the slide plate (318).

5. The lower limb passive joint range of motion and gait training device for small animals according to claim 1, characterized in that: The outer wall of the clamping block (3113) is provided with an inclined surface, and the outer wall of the clamping block (3113) fits snugly with the inner wall of the clamping groove (3114).

6. The lower limb passive joint range of motion and gait training device for small animals according to claim 2, characterized in that: There are a plurality of positioning holes (326), and the positioning holes (326) are evenly and equidistantly distributed on the outer walls of the adjusting rod (322) and the support pillar (321).

7. The lower limb passive joint range of motion and gait training device for small animals according to claim 2, characterized in that: The outer wall of the positioning rod (323) fits snugly with the inner wall of the positioning hole (326).

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