Multi-angle leg muscle strength training device

Abstract

The utility model discloses a kind of multi-angle leg muscle training devices of sitting, it includes;Chassis, front rod is fixedly arranged at the top of the front end of chassis, upper pedal is fixedly arranged at the top of front rod, lower pedal is fixedly arranged at the middle of front rod;Upper frame, pulley is rotatably installed in the bottom of upper frame, pulley groove for pulley sliding is fixedly arranged at the middle top of chassis;Connecting rod, the top of connecting rod is hinged on the top side wall of upper frame, the bottom of connecting rod is hinged on the rear end top wall of chassis, between connecting rod and upper frame still be provided with telescopic damper for increasing pulley sliding damping, the telescopic end of telescopic damper is hinged on the side wall of upper frame between pulley and cushion, the mounting end of telescopic damper is hinged on the middle side wall of connecting rod;By setting the upper pedal and lower pedal of different installation angles on front rod, different pedaling positions can be selected according to the needs of rehabilitation by user, effectively train different muscle groups of thigh and shank, overcome the defect that traditional equipment training angle is single.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary medical devices for lower limb muscle strength training, specifically a seated multi-angle leg extension muscle strength trainer. Background Technology

[0002] In the rehabilitation process, lower limb leg muscle strength training plays an important role in restoring patients' motor function, enhancing muscle strength, and improving their daily living activities. Traditional lower limb muscle strength training equipment, such as leg press machines, typically use fixed training angles and load-based resistance systems (such as weights), which have significant design flaws.

[0003] First, the fixed-angle training mode cannot meet the needs of patients at different stages of rehabilitation for multi-angle training, which limits the comprehensiveness and personalized adjustment of the training areas and affects the rehabilitation effect.

[0004] Secondly, resistance methods such as weight blocks are not only difficult to adjust, but also prone to generating sudden load impacts during training, increasing the risk of muscle and joint damage. Especially for rehabilitation patients, this unstable resistance may delay the recovery process or even cause secondary injury.

[0005] Therefore, there is an urgent need for a lower limb muscle strength training device that can achieve multi-angle adjustment and provide stable adjustable resistance to improve the safety, adaptability and effectiveness of training. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a seated multi-angle leg-pressing muscle strength trainer with a simple exercise method and adjustable leg training angle.

[0007] The technical problem to be solved by this utility model is achieved through the following technical solution: a seated multi-angle leg extension muscle strength training device, which includes; The base frame has a front beam fixed at its front end and a rear beam fixed at its rear end. The base frame is supported on the ground by the front and rear beams. A front pole is fixed at the top of the front end of the base frame, an upper step is fixed at the top of the front pole, and a lower step is fixed at the middle of the front pole. The upper shelf is equipped with a pulley that rotates at the bottom. A pulley groove for the pulley to slide is fixed at the top of the middle part of the base frame. A seat cushion is fixed at the middle of the upper shelf. A backrest cushion is fixed at the top of the upper shelf. Handrails for people to hold are fixed on the side walls of the upper shelf on both sides of the backrest cushion. The connecting rod has its top end hinged to the top side wall of the upper frame and its bottom end hinged to the rear top wall of the base frame. A telescopic damper is also provided between the connecting rod and the upper frame to increase the sliding damping of the pulley. The telescopic end of the telescopic damper is hinged to the side wall of the upper frame between the pulley and the seat cushion, and the mounting end of the telescopic damper is hinged to the middle side wall of the connecting rod.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the seated multi-angle leg press muscle strength trainer described above, wherein the bottom of the front beam is fixedly provided with shock-absorbing pads for contacting the ground at intervals, and the two ends of the rear beam are rotatably installed with casters for rolling contact with the ground.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the seated multi-angle leg press muscle strength trainer described above has different installation angles for the upper and lower pedals.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the seated multi-angle leg press muscle strength trainer described above, wherein the base frame is horizontally set and the installation angle between the pulley groove and the base frame is an acute angle.

[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned seated multi-angle leg-pressing muscle strength training device has a handle sleeve for people to grip at the end of the armrest away from the upper frame.

[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned seated multi-angle leg press muscle strength training device, wherein the telescopic damper is a hydraulic damping cylinder.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are: (1) By setting up upper and lower pedals with different installation angles on the front bar, users can choose different pedal positions according to rehabilitation needs, effectively training different muscle groups of the thigh and calf, overcoming the defect of the single training angle of traditional equipment. (2) Use telescopic dampers, such as hydraulic dampers, to replace traditional counterweights. The hydraulic resistance is smooth and gentle throughout the exercise, which effectively avoids potential damage to muscles and joints from inertial impact and greatly improves the safety of rehabilitation training. (3) The upper frame moves under the constraint of the linkage mechanism through the pulley and the inclined pulley groove of the base frame, ensuring the stability of the body posture during the leg kick. At the same time, the humanized design of the seat, backrest and armrest provides users with comfortable support and reliable grip points, reducing fatigue. (4) The overall structure is compact. The base frame is stably supported on the ground by the front beam with shock-absorbing pads and the rear beam with casters, making installation and movement very convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Attached reference numerals: 1. Base frame; 2. Front beam; 3. Rear beam; 4. Shock-absorbing pad; 5. Casters; 6. Front bar; 7. Upper pedal; 8. Lower pedal; 9. Upper frame; 10. Pulley; 11. Pulley groove; 12. Seat cushion; 13. Backrest cushion; 14. Handrail; 15. Handle grip; 16. Linkage rod; 17. Telescopic damper. Detailed Implementation

[0016] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0017] Example 1, referring to Figure 1 A seated multi-angle leg extension strength training device, comprising: The base frame 1 is formed as a roughly square metal rod structure. A front beam 2 is fixed at the front end of the base frame 1, and a rear beam 3 is fixed at the rear end of the base frame 1. The front beam 2 and the rear beam 3 can be cylindrical metal beams. The base frame 1 is supported on the ground by the front beam 2 and the rear beam 3. The bottom of the front beam 2 is fixed with shock-absorbing pads 4 for contact with the ground at intervals. The shock-absorbing pads 4 can be square pads. The two ends of the rear beam 3 are rotatably mounted with casters 5 for rolling contact with the ground. The casters 5 are existing technology and their specifications and models can be selected according to the usage requirements. A front rod 6 is fixed at the top of the front end of the base frame 1. The front rod 6 is formed as a roughly cylindrical rod structure. An upper pedal 7 is fixed at the top of the front rod 6, and a lower pedal 8 is fixed at the middle of the front rod 6. The upper pedal 7 and the lower pedal 8 are for the trainee to step on. The upper pedal 7 and the lower pedal 8 are installed at different angles, and their specific installation angles can be selected according to the usage requirements. The upper frame 9 is formed as a roughly cylindrical rod structure, inclined at an acute angle to the horizontal plane. The specific angle can be selected according to usage requirements. A pulley 10 is rotatably mounted on the bottom of the upper frame 9. The pulley 10 is a roller. A pulley groove 11 is fixed at the top center of the base frame 1, allowing the pulley 10 to slide freely. The base frame 1 is horizontally positioned, and the installation angle between the pulley groove 11 and the base frame 1 is an acute angle. A cushion 12 is fixed in the middle of the upper frame 9. A cushion 13 is fixedly installed on the top of the upper frame 9. Both the seat cushion 12 and the cushion 13 are made of soft materials, such as sponge, rubber, silicone, etc. Handrails 14 for hand gripping are fixedly installed on the side walls of the upper frame 9 on both sides of the cushion 13. The handrails 14 are cylindrical rod structures. A handle cover 15 for hand gripping is fitted on the end of the handrail 14 away from the upper frame 9. The handle cover 15 can be made of rubber, which makes it easy for users to grip during training, improves the comfort of hand gripping, and ensures the user's body balance when kicking and exerting force. The connecting rod 16 is formed into a roughly cylindrical rod structure. The top end of the connecting rod 16 is hinged to the top side wall of the upper frame 9, and the bottom end of the connecting rod 16 is hinged to the rear top wall of the base frame 1. A telescopic damper 17 is also provided between the connecting rod 16 and the upper frame 9 to increase the sliding damping of the pulley 10. The telescopic end of the telescopic damper 17 is hinged to the side wall of the upper frame 9 between the pulley 10 and the seat cushion 12, and the mounting end of the telescopic damper 17 is hinged to the middle side wall of the connecting rod 16. The telescopic damper 17 is a hydraulic damping cylinder, which is existing technology. Its specific model can be purchased according to the usage requirements to provide the resistance required for training.

[0018] The working principle of the seated multi-angle leg press strength training device in Example 1 is as follows: (1) Preparation and positioning: The user faces away from the trainer, holds the armrests 14 on both sides for support, sits back steadily on the seat 12, and comfortably leans the back against the backrest 13 to keep the body stable.

[0019] (2) Selection and placement of feet: Choose the upper pedal 7 or the lower pedal 8 for training, according to the rehabilitation training plan or personal needs. Since the installation angles of the two are different, they can respectively focus on training different muscle groups of the thigh or calf. Place both feet firmly on the selected pedal.

[0020] (3) Start the leg-pushing training: The user grips the handrail 14 with both hands and pushes forward with both legs at the same time. The force of the leg push is transmitted to the upper frame 9 through the body, forcing the pulley 10 at the bottom of the upper frame 9 to slide backward and upward in the inclined pulley groove 11. At the same time, the upper frame 9 drives the connecting rod 16 to move and stretches the telescopic damper 17 located between the connecting rod 16 and the upper frame 9.

[0021] (4) Provide training resistance: During the leg kick, the telescopic damper 17 is stretched to generate resistance. This hydraulic resistance is stable and controllable, directly counteracting the user's leg kicking force, thereby achieving the purpose of muscle strength training. The trainee can adjust the resistance of the telescopic damper 17 according to their own ability.

[0022] (5) Reset of movement: After completing the leg kick, the user slowly and controlledly bends his knees and retracts his legs. During this process, the resistance of the telescopic damper 17 still exists, helping the user to resist gravity and allowing the body and the upper frame 9 to slide smoothly back to the starting position along the pulley groove 11.

[0023] (6) End training: Repeat steps 3 to 5 for training. After the training is completed, the user leaves the pedal with both feet, supports the body with both hands using the handrail 14, and safely stands up from the seat 12 and leaves the device.

[0024] Compared with traditional lower limb muscle strength training equipment, this utility model achieves multi-angle training through optional upper pedal 7 and lower pedal 8, uses hydraulic dampers to replace counterweights to provide more stable, adjustable and safe resistance, and through the transmission mechanism of pulley 10, pulley groove 11 and connecting rod 16, it significantly improves the comfort, safety and effectiveness of training while ensuring simple and reliable structure.

Claims

1. A seated multi-angle leg press muscle strength training device, characterized in that: It includes; The base frame has a front beam fixed at its front end and a rear beam fixed at its rear end. The base frame is supported on the ground by the front and rear beams. A front pole is fixed at the top of the front end of the base frame, an upper step is fixed at the top of the front pole, and a lower step is fixed at the middle of the front pole. The upper shelf is equipped with a pulley that rotates at the bottom. A pulley groove for the pulley to slide is fixed at the top of the middle part of the base frame. A seat cushion is fixed at the middle of the upper shelf. A backrest cushion is fixed at the top of the upper shelf. Handrails for people to hold are fixed on the side walls of the upper shelf on both sides of the backrest cushion. The connecting rod has its top end hinged to the top side wall of the upper frame and its bottom end hinged to the rear top wall of the base frame. A telescopic damper is also provided between the connecting rod and the upper frame to increase the sliding damping of the pulley. The telescopic end of the telescopic damper is hinged to the side wall of the upper frame between the pulley and the seat cushion, and the mounting end of the telescopic damper is hinged to the middle side wall of the connecting rod.

2. The seated multi-angle leg press muscle strength training device according to claim 1, characterized in that: The bottom of the front beam is fixedly provided with shock-absorbing pads for contacting the ground at intervals, and the two ends of the rear beam are rotatably mounted with casters for rolling contact with the ground.

3. The seated multi-angle leg press muscle strength training device according to claim 1, characterized in that: The upper and lower pedals are installed at different angles.

4. The seated multi-angle leg press muscle strength training device according to claim 1, characterized in that: The base frame is horizontally positioned, and the installation angle between the pulley groove and the base frame is an acute angle.

5. A seated multi-angle leg press muscle strength training device according to claim 1, characterized in that: The end of the handrail away from the upper frame is fitted with a handle for people to grip.

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