Knee joint exerciser

Abstract

The utility model belongs to the technical field of exercising devices, and discloses a knee joint exercising device which comprises a bottom frame, an exercising mechanism is arranged on the bottom frame, and a display assembly, an exercising mechanism and an adjusting mechanism are arranged on the bottom frame; the exercise mechanism comprises a foot plate, a guide column, a reset spring and the like, and is used for placing two feet and realizing back-and-forth leg stretching actions; the adjusting mechanism comprises a first hydraulic oil cylinder, a second hydraulic oil cylinder and a seat, and front-back and height adjustment of the position of the seat is achieved. The display assembly comprises a display screen and is used for the user to observe the exercise condition; by combining leg stretching exercise and electric massage functions, effective exercise and muscle relaxation of knee joints are realized, and the exercise effect and comfort are improved; meanwhile, the position of the seat is adjusted through the hydraulic oil cylinder, users of different heights and body types are accurately adapted, and it is ensured that exercise is safe and practical.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of exercise devices, in particular to a knee joint exerciser. BACKGROUND

[0002] With the intensification of population aging, the middle-aged and elderly population is generally facing the challenge of knee joint health problems, which are usually manifested in the form of pain, seriously affecting their quality of life and daily activity ability. In order to actively respond to this health problem, more and more middle-aged and elderly people begin to pay attention to and enhance their physical fitness through physical exercise, especially the exercise of knee joints, in order to alleviate pain, enhance joint flexibility and stability.

[0003] Currently, the middle-aged and elderly population generally relies on public sports fitness equipment for exercise. However, these traditional equipment is often basic in design and lacks personalized adjustment function, and cannot effectively adapt to middle-aged and elderly people of different heights, body shapes and exercise needs. Especially for the elderly whose height is above or below the average range, using these fixed-size equipment not only makes it difficult to achieve the desired exercise effect, but also may increase the burden on the knee joint due to improper posture or force, and there is a certain safety risk and use limitation.

[0004] In view of the deficiencies of the existing exercise methods in meeting the knee joint exercise needs of the middle-aged and elderly population, a knee joint exerciser is proposed to solve the above-mentioned problems. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a knee joint exerciser with the functions of seat adjustment and convenient leg exercise, in view of the deficiencies of the prior art.

[0006] To solve the above technical problems, the technical solution adopted by the present application is: a knee joint exerciser, comprising:

[0007] A support assembly comprising a chassis for mounting an exercise mechanism, an adjustment mechanism and a display assembly;

[0008] The exercise mechanism comprises a foot plate, a guide column and a return spring, and is used for placing both feet and realizing back and forth leg stretching action;

[0009] The adjustment mechanism comprises a first hydraulic oil cylinder, a second hydraulic oil cylinder and a seat, and realizes flexible adjustment of the seat position and height;

[0010] The display assembly comprises a display screen for users to observe the exercise situation.

[0011] In some embodiments, the chassis is sequentially provided with the display assembly, the exercise mechanism and the adjustment mechanism.

[0012] In some embodiments, the exercise mechanism comprises a foot platform, a moving groove is formed on the foot platform, a moving seat is arranged in the moving groove, a guide column is fixedly connected inside the moving groove, the moving seat is slidably connected to the guide column, and a guide hole is formed in the moving seat.

[0013] In some embodiments, a reset spring is sleeved on the guide column, one end of the reset spring abuts against the inner wall of the moving groove, and the other end of the reset spring abuts against the moving seat.

[0014] In some embodiments, a foot plate is fixedly connected to the moving seat.

[0015] In some preferred embodiments, the foot plate is a thermoplastic polyurethane elastomer.

[0016] In some embodiments, the number of foot platforms is two, and the distance between the two foot platforms is 15-25 cm.

[0017] In some embodiments, an adjusting mechanism is arranged on the base frame, the adjusting mechanism comprises a mounting groove and a first hydraulic oil cylinder, the mounting groove is formed on the bottom of the base frame, the first hydraulic oil cylinder is fixedly connected inside the mounting groove, and an adjusting seat is fixedly connected to the extension end of the first hydraulic oil cylinder.

[0018] In some embodiments, an adjusting opening is formed on the base frame, a guide groove is formed on the inner wall of the adjusting opening, a guide plate is slidably connected inside the guide groove, and the guide plate is fixedly connected to the adjusting seat.

[0019] In some embodiments, a second hydraulic oil cylinder is fixedly connected to the adjusting seat, a seat is fixedly connected to the extension end of the second hydraulic oil cylinder, and a limiting column is fixedly connected to the bottom of the seat.

[0020] In some embodiments, a limiting cylinder is fixedly connected to the adjusting seat, and the lower end of the limiting column is inserted into the inside of the limiting cylinder.

[0021] In some embodiments, a recess is formed on the seat, and an electric massage sleeve is fixedly connected inside the recess.

[0022] In some embodiments, a fixing frame is arranged on the base frame, and a display screen is fixedly connected to the fixing frame.

[0023] The above technical solutions can bring the following beneficial effects:

[0024] 1. The application combines leg stretching exercise and electric massage functions. Middle-aged and elderly people only need to sit on the freely adjustable seat, place their feet on the foot plates on the foot platforms, and control the back and forth leg stretching movements to effectively exercise the knee joints and enhance the flexibility and stability of the joints. During the exercise, the electric massage sleeve is started in time to deeply massage the leg muscles, effectively relieve muscle tension and fatigue, promote blood circulation, ensure that the muscles are fully relaxed and recovered after exercise, and greatly improve the exercise effect and comfort.

[0025] 2、In addition, the present application considers the height difference of middle-aged and elderly population, and realizes flexible adjustment of seat position and height through integration of the first hydraulic oil cylinder and the second hydraulic oil cylinder. This design enables the exercise device to accurately adapt to users of different heights and body shapes, ensures that each middle-aged and elderly person can exercise in the most suitable position for himself, guarantees the safety of exercise, and greatly enhances the practicability of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the present application;

[0027] Figure 2 is another perspective view of the present application;

[0028] Figure 3 is a schematic diagram of the exercise mechanism of the present application;

[0029] Figure 4 is a schematic diagram of the adjustment mechanism of the present application.

[0030] In the drawings:

[0031] 1, support assembly; 101, base frame;

[0032] 2, exercise mechanism; 201, foot stand; 202, moving groove; 203, guide column; 204, return spring; 205, moving seat; 206, foot plate; 207, guide hole;

[0033] 3, adjustment mechanism; 301, mounting groove; 302, first hydraulic oil cylinder; 303, adjustment seat; 304, adjustment port; 305, guide groove; 306, limiting column; 307, guide plate; 308, second hydraulic oil cylinder; 309, limiting cylinder; 310, seat; 3101, groove; 3102, electric massage sleeve;

[0034] 4, display assembly; 401, fixing frame; 402, display screen. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] Please refer to Figure 1 , one embodiment of the present application is:

[0037] A knee joint exercise device, comprising

[0038] The support assembly 1 comprises a chassis 101 for mounting the exercise mechanism 2, the adjusting mechanism 3, and the display assembly 4.

[0039] The exercise mechanism 2 comprises a foot plate 206, a guide column 203, and a reset spring 204, and is used for placing feet and realizing the back-and-forth leg stretching action.

[0040] The adjusting mechanism 3 comprises a first hydraulic oil cylinder 302, a second hydraulic oil cylinder 308, and a seat 310, and realizes the flexible adjustment of the position and height of the seat 310.

[0041] The display assembly 4 comprises a display screen 402, and is used for the user to observe the exercise condition.

[0042] As shown in the figure, Figure 1 the chassis 101 is sequentially provided with the display assembly 4, the exercise mechanism 2, and the adjusting mechanism 3.

[0043] As shown in the figure, Figure 3 the exercise mechanism 2 comprises a foot stand 201, a moving groove 202 is arranged on the foot stand 201, a moving seat 205 is arranged in the moving groove 202, the moving groove 202 is fixedly connected with a guide column 203, the guide column 203 is slidably connected with the moving seat 205, a guide hole 207 is arranged in the moving seat 205, the guide column 203 penetrates through the guide hole 207, and the guide hole 207 and the guide column 203 are designed to limit and guide the moving seat 205, thereby ensuring the stability and accuracy of the movement track.

[0044] The guide column 203 is sleeved with the reset spring 204, one end of the reset spring 204 abuts against the inner wall of the moving groove 202, and the other end of the reset spring 204 abuts against the moving seat 205. When the moving seat 205 moves along the guide column 203, the reset spring 204 can provide the corresponding elastic force.

[0045] The moving seat 205 is fixedly connected with the foot plate 206, the foot plate 206 has a certain bending degree and a certain elasticity, and can better fit the shape of the foot to provide comfortable support for the user.

[0046] The number of the foot stands 201 is two, and the distance between the two foot stands 201 is 15-25 cm.

[0047] As shown in the figure, Figure 1 , 4 the adjusting mechanism 3 is arranged on the chassis 1011, the adjusting mechanism 3 comprises a mounting groove 301 and a first hydraulic oil cylinder 302, the mounting groove 301 is arranged at the bottom of the chassis 101, the first hydraulic oil cylinder 302 is fixedly connected in the mounting groove 301, and the first hydraulic oil cylinder 302 is fixedly connected with an adjusting seat 303 at the telescopic end.

[0048] The bottom frame 101 is provided with an adjusting opening 304, and a guide groove 305 is formed in the inner wall of the adjusting opening 304. A guide plate 307 is slidably connected in the guide groove 305, and the guide plate 307 is fixedly connected to the adjusting seat 303. The cooperation of the guide plate 307 and the guide groove 305 ensures the stability of the adjusting seat 303 during forward and backward movement.

[0049] Through the design of the adjusting mechanism 3, the forward and backward position adjustment of the seat 310 on the bottom frame 101 can be realized. The position of the seat 310 can be flexibly adjusted according to different leg lengths, so as to meet the individual needs of different users.

[0050] In addition, the adjusting mechanism 3 can also be adjusted in height. Specifically, a second hydraulic oil cylinder 308 is fixedly connected to the adjusting seat 303, the seat 310 is fixedly connected to the telescopic end of the second hydraulic oil cylinder 308, and a limiting column 306 is fixedly connected to the bottom of the seat 310.

[0051] The limiting column 306 is inserted into the inside of the limiting cylinder 309 fixedly connected to the adjusting seat 303. The limiting cylinder 309 and the limiting column 306 can effectively improve the stability of the seat 310 during height adjustment, prevent the seat 310 from shaking or deviating, and ensure the safety of the user.

[0052] A recess 3101 is formed in the seat 310, and an electric massage sleeve 3102 is fixedly connected in the recess 3101. The electric massage sleeve 3102 can provide comfortable massage experience for the legs and relieve fatigue.

[0053] The bottom frame 101 is provided with a fixing frame 401, and the fixing frame 401 is fixedly connected with a display screen 402.

[0054] The bottom frame 101 is fixedly connected with a fixing frame 401, and the fixing frame 401 is fixedly connected with a display screen 402. Through the setting of the display screen 402, the middle-aged and old people can conveniently check the exercise time during exercise, so as to better grasp the exercise progress and reasonably arrange the exercise plan.

[0055] In the present application, the material of the foot plate 206 is selected as thermoplastic polyurethane elastomer (TPU). When selecting the material of the foot plate, we comprehensively evaluate a plurality of elastic materials, including carbon fiber, PP composite material and rubber, etc. In order to ensure the accuracy and reliability of the test results, we made the foot plate samples as shown in Figure 1 Each material is made of 3 samples, and the average value is analyzed.

[0056] Evaluation index: hardness is measured using a Shore hardness tester, rebound height is measured by a falling ball rebound tester, wear amount is measured using a wear testing machine, crack resistance under impact is measured by an impact testing machine, and comfort is evaluated by volunteers (over 50 years old) stepping on the footboard.

[0057] Test item Carbon fiber PP composite Rubber TPU Hardness High (> 90 Shore D) Medium (70-80 Shore D) Low (50-60 Shore A) Medium-high (80-90 Shore A) Elasticity Low (Rebound rate < 50%) Medium (resilience 50-70%) High (resilience > 80%) Medium-high (resilience 70-80%) Wear resistance High (wear < 0.1 g) Medium (wear amount 0.1-0.3 g) Low (wear amount > 0.5 g) Medium-high (wear amount 0.2-0.4 g) Impact resistance High (excellent anti-cracking performance) Medium (good anti-cracking performance) Low (poor anti-cracking performance) Medium-high (good anti-cracking performance) Comfort Low (score 4-5) Medium (score 6-7) High (score 7-8) Medium-high (score 8-9)

[0058] The present application comprehensively evaluates each material, and the thermoplastic polyurethane elastomer (TPU) has good hardness, rebound performance, wear resistance and impact resistance, and is particularly suitable for the application scenarios of the present application.

[0059] It should be noted that the electric massage sleeve in the above embodiments belongs to the existing technology category and is not the core innovation point of the present application, so it is not described in detail here.

[0060] Working principle

[0061] The user sits on the seat and places his feet on the footboard on the foot platform. By starting the first hydraulic oil cylinder, the front and rear positions of the seat can be adjusted to adapt to the leg length and exercise needs of different users. At the same time, starting the second hydraulic oil cylinder can realize the height adjustment of the seat, further improving the comfort and exercise effect of the user.

[0062] During exercise, the user controls the back and forth movement of the legs to exercise the legs. When the feet push the footboard forward, the return spring is compressed; when the user retracts the feet, the footboard will move backward under the elastic action of the return spring. This process can effectively simulate the action of leg stretching and contraction, thereby achieving the purpose of exercising the user's leg muscles.

[0063] The above is only the preferred embodiment of the present application, and it should be noted that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should be considered as the protection scope of the present application. The components not explicitly described in the embodiments can be realized by existing technology.

Claims

1. A knee exerciser, characterized by, Include: Support assembly, including chassis, for installing exercise mechanism, adjusting mechanism, display assembly; exercise mechanism, including foot plate, guide column, reset spring, for placing feet, and realizing back and forth leg stretching action; adjusting mechanism, including first hydraulic cylinder, second hydraulic cylinder, seat, realizing seat position front and back and height adjustment; display assembly, including display screen, for user to observe exercise situation.

2. A knee exerciser as claimed in claim 1, wherein The chassis is sequentially provided with the display assembly, the exercise mechanism and the adjusting mechanism.

3. The knee exerciser as set forth in claim 1, wherein The exercise mechanism includes a foot platform, a moving groove is formed in the foot platform, a moving seat is arranged in the moving groove, a guide column is fixedly connected to the inside of the moving groove, the moving seat is slidably connected to the guide column, a guide hole is formed in the moving seat, and the guide column penetrates through the guide hole. A reset spring is sleeved on the guide column, one end of the reset spring abuts against the inner wall of the moving groove, and the other end of the reset spring abuts against the moving seat.

4. A knee exerciser as claimed in claim 3, wherein A foot plate is fixedly connected to the moving seat; and the foot plate is a thermoplastic polyurethane elastomer.

5. The knee exerciser as set forth in claim 3, wherein The number of the foot platforms is two, and the distance between the two foot platforms is 15-25 cm.

6. The knee exerciser as set forth in claim 1, wherein The adjusting mechanism is arranged on the chassis, and includes a mounting groove and a first hydraulic cylinder; the mounting groove is formed in the bottom of the chassis, the first hydraulic cylinder is fixedly connected to the inside of the mounting groove, and an adjusting seat is fixedly connected to the extension end of the first hydraulic cylinder. An adjusting opening is formed in the chassis, a guide groove is formed in the inner wall of the adjusting opening, a guide plate is slidably connected to the inside of the guide groove, and the guide plate is fixedly connected to the adjusting seat.

7. A knee exerciser as claimed in claim 6, wherein A second hydraulic cylinder is fixedly connected to the adjusting seat, a seat is fixedly connected to the extension end of the second hydraulic cylinder, and a limiting column is fixedly connected to the bottom of the seat. A limiting cylinder is fixedly connected to the adjusting seat, and the lower end of the limiting column is inserted into the inside of the limiting cylinder.

8. The knee exerciser as set forth in claim 1, wherein A recess is formed in the seat, and an electric massage sleeve is fixedly connected to the inside of the recess.

9. The knee exerciser as set forth in claim 1, wherein A fixing frame is arranged on the chassis, and a display screen is fixedly connected to the fixing frame.

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