Knee joint rehabilitation exerciser

Abstract

The knee joint rehabilitation exerciser comprises a vertical frame and a steel wire rope, a guide shaft is installed between the upper end wall and the lower end wall of the vertical frame, and a weighting assembly is installed on the guide shaft in a sliding mode; a bottom guide rail is rotationally mounted in the middle of the lower end side wall of the vertical frame through a rotating shaft piece. An exercise mode similar to a fixed pulley block is adopted, namely, legs are placed on the placing assembly, in the leg bending and stretching process, the placing assembly can be pulled to move front and back, in the moving process, the steel wire rope pulls the weighting assembly to move up and down to achieve exercise operation, a light balancing weight can be added to the weighting assembly in the initial exercise stage, and the weight of the weighting assembly can be increased. The force required during bending and stretching can be reduced, secondary injury to bone joints is avoided, and balancing weights can be gradually and additionally added along with deep exercise, so that the optimal exercise effect can be achieved; in addition, the bottom guide rail is rotationally connected with the vertical frame, the bottom guide rail can be erected when not used, the overall occupied area can be reduced, and carrying is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of rehabilitation exercise, in particular to a knee joint rehabilitation exerciser. Background Art

[0002] Bone joints are connected by capsules made of connective tissue between adjacent bones. The indirect connection between bones is called bone joints. In daily life, people may suffer from knee joint damage due to accidents or other circumstances. After surgical treatment, bone joint rehabilitation exercises are needed to accelerate the recovery of bone joints.

[0003] Currently, the main training methods for knee joints are stretching equipment or rehabilitation equipment similar to bicycles. One disadvantage of the above equipment is that the force required for stretching and pedaling is the same, and in the early stages of training, the bones and joints are relatively fragile, which can easily cause secondary damage to the bones and joints during training, resulting in failure to meet the user's needs. Utility Model Content

[0004] The purpose of the utility model is to provide a knee joint rehabilitation exerciser to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: a knee joint rehabilitation exerciser, comprising a vertical frame and a steel wire rope, a guide shaft is installed between the upper and lower end walls of the vertical frame, and a weighting component is slidably installed on the guide shaft; a bottom guide rail is rotatably installed on the middle part of the lower end side wall of the vertical frame through a rotating shaft, and a placement component for placing the legs is slidably installed on the bottom guide rail, and guide wheels that are connected to the steel wire rope guide and combined with the steel wire rope to form a fixed pulley group are installed at the end of the bottom guide rail and the upper and lower end surfaces of the vertical frame, and the two ends of the steel wire rope are respectively installed between the weighting component and the placement component.

[0006] In a preferred embodiment, the weight-adding assembly includes a base plate and a plurality of counterweight blocks, the base plate is provided with a guide hole that can guide and slide on the guide shaft, a limiting rod is integrally protruded above the center of the base plate, and a limiting hole that is compatible with the limiting rod is provided through the center of the counterweight block.

[0007] In a preferred embodiment, an infrared receiver is embedded in the upper end surface of the limiting plug rod, an infrared transmitter corresponding to the infrared receiver is embedded in the upper end wall of the vertical frame, and a control panel electrically connected to the infrared receiver and the infrared transmitter is installed on the side wall of the vertical frame.

[0008] In a preferred embodiment, the outer end of the control panel has a display screen and operation buttons, the interior of the control panel is provided with a PCB mainboard and a power supply, and the PCB mainboard is integrated with a wireless transceiver, a memory, a timer, a counter and a speaker.

[0009] In a preferred embodiment, a bottom plate is installed on the end surface of the bottom guide rail, and fixing plates with mounting holes are protruded from both sides of the bottom ends of the bottom plate and the vertical frame.

[0010] In a preferred embodiment, the placement assembly includes a bracket, a sliding block that can slide on the bottom guide rail is installed on the bottom end surface of the bracket, and a support belt for supporting the legs is installed on the upper end surface of the bracket.

[0011] In a preferred embodiment, a foot support plate is installed at the end of the bracket, and a fixing strap for fixing the foot is installed on the foot support plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the whole adopts an exercise method similar to a fixed pulley set. During the leg flexion and extension process, the placement component will be pulled forward and backward. During the movement, the steel wire rope pulls the weighted component up and down to realize the exercise operation. In the early stage of exercise, a lighter counterweight block can be added to the weighted component to reduce the force required for flexion and extension, and avoid secondary damage to the bones and joints. As the exercise progresses, additional counterweight blocks can be gradually added, so as to achieve the best exercise effect;

[0014] 2. In the utility model, the guide rail and the vertical frame are rotatably connected. When not in use, the bottom guide rail can be erected to reduce the overall floor space and facilitate carrying;

[0015] 3. In the utility model, a device for measuring the rising height of the weighted component is provided on the rehabilitation exerciser. When the set height is reached, it is a standard exercise number, and a timer and a counter are used to record the number of exercises in a set period of time, so that the recovery status of the rehabilitation personnel can be intuitively known, and the whole is more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the side planar structure of the utility model.

[0018] Markings in the figure: 1-vertical frame, 2-bottom plate, 3-foot support plate, 4-fixing strap, 5-bracket, 6-support belt, 7-sliding block, 8-bottom plate, 9-bottom guide rail, 10-rotating shaft, 11-guide wheel, 12-fixing plate, 13-vertical frame, 14-wire rope, 15-control panel, 16-limiting rod, 17-infrared receiver, 18-guide shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Reference Figure 1-2 A knee joint rehabilitation exerciser includes a vertical frame 13 and a steel wire rope 14. A guide shaft 18 is installed between the upper and lower end walls of the vertical frame 13. A weight component is slidably installed on the guide shaft 18. A bottom guide rail 9 is rotatably installed on the middle part of the lower end side wall of the vertical frame 13 through a rotating shaft 10. A placement component for placing the legs is slidably installed on the bottom guide rail 9. The end of the bottom guide rail 9 and the upper and lower end surfaces of the vertical frame 13 are installed with guide wheels 11 that are connected to the steel wire rope 14 and combined with the steel wire rope to form a fixed pulley group. The two ends of the steel wire rope 14 are respectively installed between the weight component and the placement component. The whole adopts an exercise method similar to the fixed pulley group. During the flexion and extension of the leg, the placement component will be pulled forward and backward. During the movement, the steel wire rope 1 pulls the weight component up and down to realize the exercise operation.

[0021] The shaft part of the shaft member 10 adopts a damping shaft with damping. Since the bottom guide rail 9 and the vertical frame 13 are rotatably connected, the bottom guide rail 9 can be erected when not in use, which can reduce the overall floor space and facilitate storage.

[0022] Furthermore, the weight-added component includes a base plate 2 and a plurality of counterweight blocks 1. A guide hole is provided on the base plate 2 for guiding and sliding on the guide shaft 18. A limit rod 16 is integrally protruded above the center of the base plate 2. A limit hole compatible with the limit rod 16 is provided through the center of the counterweight block 1. In the early stage of exercise, a lighter counterweight block 1 can be added to the weight-added component to reduce the force required for flexion and extension and avoid secondary injury to the bone joints. As the exercise progresses, additional counterweight blocks 1 can be gradually added to achieve the best exercise effect. When installing and removing the counterweight block 1, it is only necessary to insert the counterweight block 1 into the limit rod 16 or take it out from the limit rod 16.

[0023] Furthermore, an infrared receiver 17 is embedded in the upper end surface of the limiting plug 16, and an infrared transmitter corresponding to the infrared receiver 17 is embedded in the upper end wall of the vertical frame 13. A control panel 15 electrically connected to the infrared receiver 17 and the infrared transmitter is installed on the side wall of the vertical frame 13. The outer end of the control panel 15 has a display screen and operation buttons. A PCB mainboard and a power supply are arranged inside the control panel 15 (the whole is externally connected to the mains when in use). A wireless transceiver, a memory, a timer, a counter and a speaker are integrated on the PCB mainboard. A device for measuring the rising height of the weighted component is provided on the rehabilitation exerciser. The distance between the infrared receiver 17 and the infrared transmitter is used to realize the setting height of the weighted component. Reaching the set height is a standard exercise number, and the timer and the counter are used to record the number of exercises for a period of time (that is, the number of exercises of the user is checked regularly), so that the recovery status of the rehabilitation personnel can be intuitively known, and the overall intelligence is more intelligent. At the same time, the speaker can also be used to play music or encouraging sounds.

[0024] It should be mentioned in particular that the above linkage methods and how to realize timing counting are existing technologies that have been implemented, and will not be elaborated on in detail here.

[0025] Furthermore, a bottom plate 8 is installed on the end surface of the bottom guide rail 9, and fixing plates 12 with mounting holes are protruded on both sides of the bottom ends of the bottom plate 8 and the vertical frame 13. Before use, the bottom guide rail 9 can be pulled to a horizontal position, and then the fixing plate 12 can be used to fix the whole to a desired position (such as by fixing with bolts).

[0026] Furthermore, the placement component includes a bracket 5, the bottom end surface of the bracket 5 is equipped with a sliding block 7 that can slide on the bottom guide rail 9, the upper end surface of the bracket 5 is equipped with a support belt 6 for supporting the legs, the end of the bracket 5 is equipped with a foot support plate 3, and the foot support plate 3 is equipped with a fixing strap 4 (with a buckle) for fixing the foot. When placing the leg, the leg is placed on the towing strap 6, and then the foot is placed on the foot support plate 3, and the foot is fixed with the fixing strap 4, so that during the process of leg flexion and extension, the placement component can be driven to move forward and backward, thereby completing the subsequent rehabilitation exercise operation.

[0027] In addition, a telescopic rod with adjustable length is provided on the side of the bracket 5 facing the footrest 3 (this is a common existing technology, and the specific structure is not described here), which can be adjusted according to different leg shapes, and the whole can also be used as a training device for the elbow joint.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A knee joint rehabilitation exerciser, comprising a vertical frame and a steel wire rope, characterized in that: A guide shaft is installed between the upper and lower end walls of the vertical frame, and a weighting assembly is slidably installed on the guide shaft; a bottom guide rail is rotatably installed on the middle part of the lower end side wall of the vertical frame through a rotating shaft, and a placement assembly for placing the legs is slidably installed on the bottom guide rail, and guide wheels connected to the wire rope guide and combined with the wire rope to form a fixed pulley group are installed at the end of the bottom guide rail and the upper and lower end surfaces of the vertical frame, and both ends of the wire rope are respectively installed between the weighting assembly and the placement assembly.

2. A knee joint rehabilitation exerciser as claimed in claim 1, characterized in that: The weight-adding assembly includes a base plate and a plurality of counterweight blocks. The base plate is provided with a guide hole that can guide and slide on the guide shaft. A limiting plug rod is integrally protruded above the center of the base plate. A limiting hole that is compatible with the limiting plug rod is provided through the center of the counterweight block.

3. A knee joint rehabilitation exerciser as claimed in claim 2, characterized in that: An infrared receiver is embedded in the upper end surface of the limiting plug rod, an infrared transmitter corresponding to the infrared receiver is embedded in the upper end wall of the vertical frame, and a control panel electrically connected to the infrared receiver and the infrared transmitter is installed on the side wall of the vertical frame.

4. A knee joint rehabilitation exerciser as claimed in claim 3, characterized in that: The outer end of the control panel is provided with a display screen and operation buttons, and the interior of the control panel is provided with a PCB mainboard and a power supply. The PCB mainboard is integrated with a wireless transceiver, a memory, a timer, a counter and a speaker.

5. A knee joint rehabilitation exerciser as claimed in claim 1, characterized in that: A bottom plate is installed on the end surface of the bottom guide rail, and fixing plates with mounting holes are protruded from both sides of the bottom ends of the bottom plate and the vertical frame.

6. A knee joint rehabilitation exerciser as claimed in claim 1, characterized in that: The placement assembly comprises a bracket, a sliding block which can slide on the bottom guide rail is installed on the bottom end surface of the bracket, and a supporting belt for supporting the legs is installed on the upper end surface of the bracket.

7. A knee joint rehabilitation exerciser as claimed in claim 6, characterized in that: A foot support plate is installed at the end of the bracket, and a fixing strap for fixing the foot is installed on the foot support plate.

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