Knee joint flexion and extension function exercise leg frame

Abstract

The utility model discloses a kind of knee joint flexion and extension function exercise leg supports, belong to rehabilitation equipment technical field, including support frame, the left end of support frame is equipped with stroke adjustable sliding mechanism, and the right end of support frame is equipped with fixed block;The left end of calf support is hinged with the moving end of stroke adjustable sliding mechanism, and the right end of thigh support is hinged with the top of fixed block, and the right end of calf support and the left end of thigh support are hinged;Foot-ankle fixing brace is installed on calf support.The utility model places thigh on the thigh support plate of thigh on thigh by user, and foot-ankle fixing brace is placed on calf support, and the leg of user is fixed by limb fixing structure respectively, then user controls calf to reciprocatingly slide on support frame by stroke adjustable sliding mechanism, to carry out knee joint flexion and extension function exercise, and the slidable range of foot can be adjusted by stroke adjustable sliding mechanism, to realize different exercise effect.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation equipment technology, specifically to a leg frame for exercising knee flexion and extension function. Background Technology

[0002] After joint replacement surgery, ligament surgery, and other surgeries, patients need to perform knee flexion and extension exercises to aid in knee rehabilitation.

[0003] Conventional knee flexion and extension exercises involve family members or nurses assisting the patient by lifting the top of the thigh to provide support, and then controlling the lower leg to repeat flexion and extension movements multiple times. This method is not only physically demanding but also results in inconsistent exercise effectiveness.

[0004] Based on this, the present invention designs a knee flexion and extension function exercise leg frame to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a leg frame for exercising the knee joint flexion and extension function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A leg frame for exercising knee flexion and extension function includes a support frame, a lower leg support, a thigh support, a fixation block, an ankle fixation brace, and a thigh support plate; An adjustable sliding mechanism is installed at the left end of the support frame, and a fixed block is installed at the right end of the support frame; the left end of the calf support is hinged to the moving end of the adjustable sliding mechanism, the right end of the thigh support is hinged to the top of the fixed block, and the right end of the calf support and the left end of the thigh support are hinged together. Ankle and foot fixation braces are fixedly installed on the lower leg support, and a thigh support plate is fixedly installed on the thigh support. Limb fixation structures are fixedly installed on both the ankle and foot fixation braces and the thigh support plate. Furthermore, the adjustable sliding mechanism includes a slide rail, a sliding frame, a stroke adjustment component, a damping adjustment component, and a support rod. Two slide rails are symmetrically fixedly installed on the front and rear sides of the top of the support frame. The front ends of the sliding frame are slidably connected to the corresponding slide rails via sliders. A support rod is fixedly installed on the top center of the sliding frame. Stroke adjustment components are installed on both slide rails to adjust the sliding range of the sliding frame on the slide rails. Two damping adjustment components are symmetrically installed on the top sides of the sliding frame to adjust the sliding resistance of the sliding frame on the slide rails.

[0007] Furthermore, the stroke adjustment component includes pin holes and stop pins. Multiple pin holes are equally spaced along the length of the slide rail, and two stop pins are provided and distributed on the left and right sides of the sliding frame. The stop pins are inserted into the pin holes.

[0008] Furthermore, the damping adjustment assembly includes an adjusting screw and a damping plate. The adjusting screw is threadedly connected to the sliding frame via a threaded sleeve. The bottom thread of the adjusting screw passes through the threaded sleeve and is rotatably mounted with a damping plate for abutting against the top surface of the slide rail.

[0009] Furthermore, the support frame includes a fixed frame and a telescopic frame. The tops of the vertical tubes on both sides of the fixed frame are fixedly connected to two slide rails, respectively. The horizontal tube of the telescopic frame is fixedly connected to a fixed block. The vertical tubes on both sides of the telescopic frame are respectively inserted into the vertical tubes on both sides of the fixed frame for limiting and sliding connection.

[0010] Furthermore, the calf support includes a first sleeve and a first sliding rod, and the thigh support includes a second sleeve and a second sliding rod. The right end of the first sleeve is hinged to the left end of the second sleeve. The right end of the first sliding rod is inserted into the left end of the first sleeve for a limited sliding connection. The left end of the first sliding rod is hinged to the top of the support rod. The second sleeve is inclined. The right end of the second sleeve is inserted into the top of the second sliding rod for a limited sliding connection. The bottom of the second sliding rod is hinged to the top of the fixing block.

[0011] Furthermore, the bottom of the second slide bar is bent downwards and set vertically.

[0012] Furthermore, the limb fixation structure uses straps with buckles.

[0013] Furthermore, the support frame is designed as a rectangular structure.

[0014] Furthermore, a grip is fixedly installed on the support pole.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model allows the user to place their thigh on the thigh support plate of the thigh bracket and their lower leg on the ankle fixation brace of the lower leg bracket. The user's legs are then fixed by the limb fixation structure. The user then controls the lower leg to slide back and forth on the support frame through an adjustable sliding mechanism to perform knee flexion and extension exercises. The adjustable sliding mechanism can also be used to adjust the sliding range of the foot to achieve different exercise effects. The entire leg bracket structure is simple, lightweight, stable, and low in cost. Nurses or family members only need to fix the user's leg to the ankle fixation brace and thigh support plate to allow the user to exercise independently, making it convenient to use.

[0016] 2. In the initial stage of knee flexion and extension function training, nurses or family members can hold the handle bar to control the sliding frame to slide along the slide rail, assisting the user in the exercise. Once the user is comfortable with it, the user can then perform independent exercises. By inserting the stop pins into the pin holes at different positions, the distance and position between the two stop pins can be changed, which can limit the sliding range of the sliding frame, thereby changing the degree of knee flexion and extension of the user and meeting different training effects. At the same time, by rotating the adjusting screw, the clamping force between the damping plate and the slide rail can be changed. The tighter the damping plate is against the slide rail, the greater the sliding resistance of the sliding frame, and the greater the force required for the user to perform knee flexion and extension, thus meeting the training effects required by the user at different recovery stages. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of a leg frame for exercising knee flexion and extension function according to the present invention; Figure 2 This utility model relates to a three-dimensional leg frame for exercising knee flexion and extension function. Figure 1 ; Figure 3 This utility model relates to a three-dimensional leg frame for exercising knee flexion and extension function. Figure 2 ; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] The labels in the diagram represent: 1. Support frame; 11. Fixing frame; 12. Telescopic frame; 13. First adjustment knob; 2. Stroke adjustable sliding mechanism; 21. Slide rail; 22. Sliding frame; 23. Stroke adjustment assembly; 231. Pin hole; 232. Stop pin; 24. Damping adjustment assembly; 241. Adjusting screw; 242. Damping plate; 25. Support rod; 26. Handle rod; 3. Lower leg support; 31. First sleeve; 32. First slide rod; 33. Second adjustment knob; 4. Thigh support; 41. Second sleeve; 42. Second slide rod; 43. Third adjustment knob; 5. Fixing block; 6. Ankle fixation brace; 7. Thigh support plate; 8. Strap. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0022] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-4 A leg support for knee flexion and extension function training includes a support frame 1, a lower leg support 3, a thigh support 4, a fixing block 5, an ankle fixation brace 6, and a thigh support plate 7.

[0023] The support frame 1 is designed as a rectangular structure, which can stably support the bed. The left end of the support frame 1 is equipped with an adjustable sliding mechanism 2, and the right end of the support frame 1 is equipped with a fixing block 5. The left end of the lower leg support 3 is hinged to the moving end of the adjustable sliding mechanism 2, the right end of the thigh support 4 is hinged to the top of the fixing block 5, and the right end of the lower leg support 3 and the left end of the thigh support 4 are hinged together.

[0024] Ankle fixation brace 6 is fixedly installed on the calf support 3, and thigh support plate 7 is fixedly installed on the thigh support 4. Limb fixation structure is fixedly installed on both the ankle fixation brace 6 and the thigh support plate 7. The limb fixation structure can use straps 8 with buckles to suit users of different body types.

[0025] In this invention, the user places the support frame 1 on the hospital bed, places the thigh on the thigh support plate 7 on the thigh support 4, and the lower leg on the ankle fixation brace 6 on the lower leg support 3, and fixes the user's legs with limb fixation structures. The user then controls the lower leg to slide back and forth on the support frame 1 via the adjustable sliding mechanism 2 to perform knee flexion and extension exercises. The adjustable sliding mechanism 2 can be used to adjust the sliding range of the foot to achieve different exercise effects. The entire leg support structure is simple and low-cost. Nurses or family members only need to fix the user's leg to the ankle fixation brace 6 and thigh support plate 7 to allow the user to exercise independently, making it convenient to use.

[0026] In some embodiments, the adjustable sliding mechanism 2 includes a slide rail 21, a sliding frame 22, a stroke adjustment component 23, a damping adjustment component 24, a support rod 25, and a handle 26. Two slide rails 21 are symmetrically fixedly installed on the front and rear sides of the top of the support frame 1. The front ends of the sliding frame 22 are slidably connected to the corresponding slide rail 21 by sliders. A support rod 25 is fixedly installed on the top center of the sliding frame 22, and a handle 26 is fixedly installed on the support rod 25. Stroke adjustment components 23 are installed on both slide rails 21 to adjust the sliding range of the sliding frame 22 on the slide rail 21. Two damping adjustment components 24 are symmetrically installed on the top sides of the sliding frame 22 to adjust the sliding resistance of the sliding frame 22 on the slide rail 21.

[0027] The stroke adjustment component 23 includes pin holes 231 and stop pins 232. Multiple pin holes 231 are equally spaced along the length of the slide rail 21. Two stop pins 232 are provided and distributed on the left and right sides of the sliding frame 22. The stop pins 232 are inserted into the pin holes 231.

[0028] The damping adjustment assembly 24 includes an adjusting screw 241 and a damping plate 242. The adjusting screw 241 is threadedly connected to the sliding frame 22 through a threaded sleeve. The bottom thread of the adjusting screw 241 passes through the threaded sleeve and is rotatably mounted with a damping plate 242 for abutting against the top surface of the slide rail 21. The damping plate 242 can be made of rubber.

[0029] In this invention, during the initial stage of knee flexion and extension exercises, nurses or family members can hold the handle 26 to control the sliding frame 22 to slide along the slide rail 21, assisting the user in the exercise. Once the user is comfortable with it, the user can then perform independent exercises. By inserting the stop pins 232 into the pin holes 231 at different positions, the distance and position between the two stop pins 232 can be changed, thus limiting the sliding range of the sliding frame 22 and thereby changing the degree of knee flexion and extension of the user to meet different exercise effects. At the same time, by rotating the adjusting screw 241, the clamping force between the damping plate 242 and the slide rail 21 can be changed. The tighter the damping plate 242 is against the slide rail 21, the greater the sliding resistance of the sliding frame 22, and the greater the force required for the user to perform knee flexion and extension, thereby meeting the exercise effects required by the user at different recovery stages.

[0030] In some embodiments, the support frame 1 includes a fixed frame 11 and a telescopic frame 12. The tops of the vertical tubes on both sides of the fixed frame 11 are fixedly connected to two slide rails 21, respectively. The horizontal tube of the telescopic frame 12 is fixedly connected to the fixed block 5. The vertical tubes on both sides of the telescopic frame 12 are respectively inserted into the vertical tubes on both sides of the fixed frame 11 for limiting and sliding connection. A screw hole is provided on the right side wall of the fixed frame 11. A first adjusting knob 13 for fixing the fixed frame 11 and the telescopic frame 12 is provided in the screw hole. The end thread of the first adjusting knob 13 passes through the screw hole of the fixed frame 11 and abuts against the outer wall of the telescopic frame 12.

[0031] In some embodiments, the calf support 3 includes a first sleeve 31 and a first slide rod 32, and the thigh support 4 includes a second sleeve 41 and a second slide rod 42. The right end of the first sleeve 31 is hinged to the left end of the second sleeve 41. The right end of the first slide rod 32 is inserted into and slidably connected to the left end of the first sleeve 31. The left end of the first slide rod 32 is hinged to the top of the support rod 25. The second sleeve 41 is inclined. The right end of the second sleeve 41 is inserted into and slidably connected to the top of the second slide rod 42. The bottom of the second slide rod 42 is hinged to the top of the fixing block 5. A screw hole is provided on the left side wall of the first sleeve 31. A second adjusting knob 33 is provided in the screw hole to fix the first sleeve 31 and the first slide rod 32. The end of the second adjusting knob 33 is threaded through the screw hole of the first sleeve 31 and abuts against the outer wall of the first slide rod 32. A screw hole is provided on the right side wall of the second sleeve 41. A third adjusting knob 43 is provided in the screw hole to fix the second sleeve 41 and the second slide rod 42. The end of the third adjusting knob 43 is threaded through the screw hole of the second sleeve 41 and abuts against the outer wall of the second slide rod 42.

[0032] Preferably, the bottom of the second slide bar 42 is bent downwards and set vertically, which better adapts to the human body structure and conforms to ergonomics. The ankle fixation brace 6 is fixedly installed between the tops of the two first slide bars 32, and the thigh support plate 7 is fixedly installed between the tops of the two second sleeves 41.

[0033] In this invention, the support frame 1, the lower leg support 3, and the thigh support 4 all adopt a telescopic structure to adapt to users of different body types, making the exercise leg support more flexible to use and easy to store when not in use.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A leg frame for exercising knee flexion and extension, comprising a support frame (1), characterized in that: It also includes a calf support (3), a thigh support (4), a fixing block (5), an ankle fixation brace (6), and a thigh support plate (7). The left end of the support frame (1) is equipped with a stroke adjustable sliding mechanism (2), and the right end of the support frame (1) is equipped with a fixed block (5); the left end of the calf support (3) is hinged to the moving end of the stroke adjustable sliding mechanism (2), the right end of the thigh support (4) is hinged to the top of the fixed block (5), and the right end of the calf support (3) and the left end of the thigh support (4) are hinged. An ankle fixation brace (6) is fixedly installed on the lower leg support (3), and a thigh support plate (7) is fixedly installed on the thigh support (4). Limb fixation structures are fixedly installed on both the ankle fixation brace (6) and the thigh support plate (7).

2. The knee flexion and extension function training leg frame according to claim 1, characterized in that, The adjustable sliding mechanism (2) includes a slide rail (21), a sliding frame (22), a stroke adjustment component (23), a damping adjustment component (24), and a support rod (25). The two slide rails (21) are symmetrically fixedly installed on the front and rear sides of the top of the support frame (1). The front ends of the sliding frame (22) are connected to the corresponding slide rail (21) by a slider. A support rod (25) is fixedly installed on the top center of the sliding frame (22). The stroke adjustment component (23) is installed on both slide rails (21) to adjust the sliding range of the sliding frame (22) on the slide rail (21). Two damping adjustment components (24) are symmetrically installed on the top sides of the sliding frame (22). The damping adjustment component (24) is used to adjust the sliding resistance of the sliding frame (22) on the slide rail (21).

3. The knee flexion and extension function training leg frame according to claim 2, characterized in that, The stroke adjustment component (23) includes pin holes (231) and stop pins (232). Multiple pin holes (231) are equally spaced along the length of the slide rail (21). Two stop pins (232) are provided and distributed on the left and right sides of the sliding frame (22). The stop pins (232) are inserted into the pin holes (231).

4. The knee flexion and extension function training leg frame according to claim 3, characterized in that, The damping adjustment assembly (24) includes an adjustment screw (241) and a damping plate (242). The adjustment screw (241) is threadedly connected to the sliding frame (22) through a threaded sleeve. The bottom thread of the adjustment screw (241) passes through the threaded sleeve and is rotatably mounted with a damping plate (242) for abutting against the top surface of the slide rail (21).

5. The knee flexion and extension function training leg frame according to claim 4, characterized in that, The support frame (1) includes a fixed frame (11) and a telescopic frame (12). The top of the vertical tubes on both sides of the fixed frame (11) are fixedly connected to two slide rails (21) respectively. The horizontal tube of the telescopic frame (12) is fixedly connected to the fixed block (5). The vertical tubes on both sides of the telescopic frame (12) are inserted into the vertical tubes on both sides of the fixed frame (11) for limiting and sliding connection.

6. The knee flexion and extension function training leg frame according to claim 5, characterized in that, The lower leg support (3) includes a first sleeve (31) and a first slide rod (32), and the thigh support (4) includes a second sleeve (41) and a second slide rod (42). The right end of the first sleeve (31) is hinged to the left end of the second sleeve (41). The right end of the first slide rod (32) is inserted into the left end of the first sleeve (31) for a limited sliding connection. The left end of the first slide rod (32) is hinged to the top of the support rod (25). The second sleeve (41) is inclined. The right end of the second sleeve (41) is inserted into the top of the second slide rod (42) for a limited sliding connection. The bottom of the second slide rod (42) is hinged to the top of the fixing block (5).

7. The knee flexion and extension function training leg frame according to claim 6, characterized in that, The bottom of the second slide bar (42) is bent downwards and set vertically.

8. The knee flexion and extension function training leg frame according to claim 1, characterized in that, The limb fixation structure uses straps with buckles (8).

9. The knee flexion and extension function training leg frame according to claim 1, characterized in that, The supporting frame (1) is set as a rectangular structure.

10. The knee flexion and extension function training leg frame according to claim 2, characterized in that, A grip (26) is fixedly installed on the support rod (25).

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