Portable leg exercise assist device

Abstract

The utility model particularly relates to a portable leg exercise assist device which comprises two frames hinged to each other, movable seats are slidably installed on the inner sides of the two frames respectively, supports are rotatably installed on the opposite sides of the two movable seats respectively, a limiting sleeve arranged on the peripheries of the two supports in a sleeving mode is arranged between the two movable seats, and the limiting sleeve is connected with the movable seats. Limiting sleeves are arranged on the outer sides of the two frames, springs are arranged in the limiting sleeves, the springs are fixedly installed between the two supports, rotating discs are rotationally installed on the outer sides of the two frames correspondingly, two binding bands are fixedly installed on the outer sides of the two rotating discs correspondingly, the outer sides of every two adjacent binding bands are connected through hook-and-loop fasteners, and limiting sliding grooves are formed in the inner sides of the frames; the leg bending and stretching and strength training device aims at helping a user to carry out leg bending and stretching and strength training anytime and anywhere, the leg muscle strength is enhanced, the flexibility is improved, and leg muscle stiffness and aching pain are prevented at the same time.

Description

Technical Field

[0001] This utility model relates to the technical field of leg exercise aids, specifically a portable leg exercise aid. Background Technology

[0002] With the fast pace of modern life, more and more people are facing the problem of prolonged sitting and lack of exercise, especially neglecting leg muscle training and stretching. A long-term lack of leg exercise can not only lead to decreased muscle strength and flexibility, but also cause leg muscle stiffness, soreness, and even increase the risk of injury. Although gyms and professional fitness equipment can provide effective leg training, these devices are usually bulky, expensive, and inconvenient to carry, failing to meet users' needs for exercising anytime, anywhere.

[0003] Existing portable fitness equipment, such as resistance bands and small dumbbells, while solving the portability problem to some extent, has limited functionality, mainly focusing on strength training and lacking comprehensive training capabilities for leg muscles. Especially for leg stretching exercises, existing portable devices often fail to provide sufficient support and stability, leading to incorrect posture and even strains during stretching. Therefore, we propose a portable leg exercise aid. Utility Model Content

[0004] The purpose of this invention is to provide a portable leg exercise aid to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable leg exercise aid, comprising two frames hinged together, movable seats slidably mounted on the inner sides of the two frames, and brackets rotatably mounted on opposite sides of the two movable seats, a limiting sleeve sleeved around the two brackets between the two movable seats, a spring inside the limiting sleeve, the spring being fixedly mounted between the two brackets, a rotating disk rotatably mounted on the outer sides of the two frames, and two straps fixedly mounted on the outer sides of each of the two rotating disks, with adjacent straps connected to each other via Velcro.

[0006] Preferably, a limiting groove is provided on the inner side of the frame, the movable seat is slidably installed in the limiting groove, and a positioning tooth groove is provided on the inner side of the limiting groove, and a positioning tooth block is provided in the movable seat to be inserted into the positioning tooth groove.

[0007] Preferably, a limiting cavity is provided in the movable seat, the positioning tooth block is inserted and installed in the limiting cavity, and a threaded rod that is threadedly connected to the positioning tooth block is rotatably installed in the limiting cavity.

[0008] Preferably, a limiting ring is provided on the inner side of the frame, the rotating disk is rotatably installed in the limiting ring, a through cavity is provided in the middle of the rotating disk, a positioning seat is fixedly installed on the inner side of the frame, the positioning seat is located in the through cavity, a plurality of first positioning slots are provided on the periphery of the positioning seat, a plurality of second positioning slots are provided on the inner wall of the through cavity, and a positioning plug is inserted between the first positioning slot and the second positioning slot.

[0009] Preferably, each of the positioning blocks is fixedly installed with a limiting slide pin, and the cavity is provided with a rotating plate that is rotatably connected to the surface of the positioning seat. The inner side of the rotating plate is provided with an arc-shaped slide groove that matches the number of limiting slide pins, and the corresponding limiting slide pins and arc-shaped slide grooves are slidably connected to each other.

[0010] Preferably, the frame is made of high-strength, lightweight aluminum alloy material, and its surface is covered with a non-slip, comfortable rubber coating, and the inner side of the straps is padded.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This portable leg exercise aid allows for adjustment of the spring position via a sliding connection between the movable seat and the frame, and the strap position via a rotating connection between the rotating disc and the frame, thereby achieving the effect of adjusting the device's shape and enabling leg flexion and extension and strength training.

[0013] This portable leg exercise aid, through the plug-in connection between the first positioning slot and the positioning block and the sliding connection between the limiting slide pin and the arc-shaped slide groove, allows the rotating plate to drive the movement of each positioning block. Through the plug-in connection between the positioning block and the second positioning slot, the connection between the rotating plate and the frame can be positioned. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the frame from the outer perspective during flexion and extension training according to this utility model.

[0015] Figure 2 This is a schematic diagram of the external structure of the inner-view frame during flexion and extension training according to this utility model;

[0016] Figure 3 This is a schematic diagram of the external structure of the frame from the outside perspective during strength training according to this utility model.

[0017] Figure 4 This is a schematic diagram of the external structure of the inner-view frame during strength training according to this utility model.

[0018] Figure 5 This is a schematic diagram of the internal disassembled structure of the spring and limiting sleeve of this utility model.

[0019] Figure 6 This is a schematic diagram of the internal disassembled structure of the positioning tooth block of this utility model;

[0020] Figure 7 This is a schematic diagram of the external disassembled structure of the frame and rotating disk of this utility model;

[0021] Figure 8 This is a schematic diagram of the external disassembled structure of the rotating disk and rotating plate of this utility model;

[0022] Figure 9 This is a schematic diagram of the external structure of the positioning insert of this utility model.

[0023] In the picture:

[0024] 1. Frame; 11. Straps; 12. Velcro;

[0025] 2. Movable seat; 21. Bracket; 22. Spring; 23. Limiting sleeve; 24. Limiting slide groove; 25. Positioning tooth groove; 26. Limiting cavity; 27. Positioning tooth block; 28. Threaded rod;

[0026] 3. Limiting ring; 31. Rotating disk; 32. Through cavity; 33. Positioning seat; 34. First positioning slot; 35. Second positioning slot; 36. Positioning insert; 37. Rotating plate; 38. Limiting pin; 39. Arc-shaped slide groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-9 This utility model provides a technical solution: a portable leg exercise aid, comprising two frames 1 that are hinged together, movable seats 2 that are slidably installed on the inner sides of the two frames 1, and brackets 21 that are rotatably installed on opposite sides of the two movable seats 2, with a limiting sleeve 23 sleeved around the two brackets 21 between the two movable seats 2, and a spring 22 inside the limiting sleeve 23, which is fixedly installed between the two brackets 21, and rotating disks 31 that are rotatably installed on the outer sides of the two frames 1, with two straps 11 fixedly installed on the outer sides of the two rotating disks 31, and the outer sides of adjacent straps 11 being connected to each other by Velcro 12.

[0029] Working principle: During leg flexion and extension training, the two frames 1 are extended outward through the hinged connection between them and positioned at the connection between the frame 1 and the movable seat 2. At this time, the spring 22 is in a stretched state. Then, through the rotational connection between the frame 1 and the rotating disk 31, the strap 11 is rotated to a horizontal state with the frame 1. The trainee places his leg in front of the frame 1 and fixes the two frames 1 to the thigh and calf respectively through the Velcro 12. During the trainee's leg flexion and extension, the two frames 1 can be rotated along the hinge, and with the tension of the spring 22, the effect of leg flexion and extension training is achieved.

[0030] During leg strength training, the two frames 1 are rotated inward, and then the spring 22 is compressed through the sliding connection between the frame 1 and the movable seat 2. The limiting sleeve 23 is slid inward, and then the strap 11 is rotated to a perpendicular state to the frame 1 through the rotational connection between the rotating disk 31 and the frame 1. Then, the user sits on the ground and places the two frames 1 between his / her legs. The legs are fixed to the two frames 1 on both sides through the Velcro 12 and the strap 11. The trainee achieves the effect of leg strength training by contracting or expanding his / her legs inward and cooperating with the resistance of the spring 22.

[0031] As a further description of the above technical solution: a limiting groove 24 is provided on the inner side of the frame 1, the movable seat 2 is slidably installed in the limiting groove 24, and a positioning tooth groove 25 is provided on the inner side of the limiting groove 24. A positioning tooth block 27 is provided in the movable seat 2 and is inserted into the positioning tooth groove 25; a limiting cavity 26 is provided in the movable seat 2, the positioning tooth block 27 is inserted into the limiting cavity 26, and a threaded rod 28 that is threadedly connected to the positioning tooth block 27 is rotatably installed in the limiting cavity 26.

[0032] Specifically, through the sliding connection between the limiting groove 24 and the movable seat 2, the movement direction of the movable seat 2 can be restricted inside the frame 1. After the position of the movable seat 2 is adjusted, the threaded rod 28 is rotated on the surface of the movable seat 2. Under the restriction of the movement direction of the positioning tooth block 27 by the limiting cavity 26, the rotating threaded rod 28 can drive the positioning tooth block 27 to move through the threaded connection between it and the positioning tooth block 27, so that the positioning tooth block 27 and the positioning tooth groove 25 are inserted into each other. Through the insertion connection between the two, the connection between the frame 1 and the movable seat 2 can be positioned.

[0033] As a further description of the above technical solution: A limiting ring 3 is provided on the inner side of the frame 1, and a rotating disk 31 is rotatably installed in the limiting ring 3. A through cavity 32 is provided in the middle of the rotating disk 31. A positioning seat 33 is fixedly installed on the inner side of the frame 1. The positioning seat 33 is located in the through cavity 32. Multiple first positioning slots 34 are provided on the periphery of the positioning seat 33. Multiple second positioning slots 35 are provided on the inner wall of the through cavity 32. Positioning blocks 36 are inserted and installed between the first positioning slots 34 and the second positioning slots 35. A limiting pin 38 is fixedly installed on the surface of each positioning block 36. A rotating plate 37 is provided in the through cavity 32 and is rotatably connected to the surface of the positioning seat 33. An arc-shaped groove 39 matching the number of limiting pins 38 is provided on the inner side of the rotating plate 37. The corresponding limiting pins 38 and arc-shaped grooves 39 are slidably connected to each other.

[0034] Specifically, the limiting ring 3 restricts the movement direction of the rotating disk 31. After the position of the rotating disk 31 is adjusted, the rotating plate 37 can be rotated in the cavity 32. Under the restriction of the movement direction of the positioning block 36 by the first positioning slot 34, the rotating plate 37 can drive each positioning block 36 to expand outward through the sliding connection between the limiting sliding pin 38 and the arc-shaped sliding groove 39, so that the positioning block 36 can be inserted into the first positioning slot 34 and the second positioning slot 35, thereby achieving the effect of positioning the rotating disk 31.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable leg exercise aid comprising two frames (1) connected to each other by means of a hinge, characterized in that: Two movable seats (2) are slidably arranged in the inner sides of the two frames (1), the two movable seats (2) are rotatably arranged with supports (21) on the opposite sides, a limiting sleeve (23) is arranged between the two movable seats (2) and is sleeved on the outer peripheries of the two supports (21), a spring (22) is arranged in the limiting sleeve (23), the spring (22) is fixedly arranged between the two supports (21), rotating discs (31) are rotatably arranged on the outer sides of the two frames (1), two binding belts (11) are fixedly arranged on the outer sides of the two rotating discs (31) respectively, and the outer sides of the adjacent two binding belts (11) are connected with each other through magic tapes (12).

2. A portable leg exercise aid according to claim 1, characterised in that: A limiting sliding groove (24) is formed in the inner side of the frame (1), the movable seat (2) is slidably arranged in the limiting sliding groove (24), and a positioning tooth groove (25) is formed in the inner side of the limiting sliding groove (24), the movable seat (2) is provided with a positioning tooth block (27) which is inserted into the positioning tooth groove (25).

3. A portable leg exercise aid according to claim 2, wherein: A limiting insertion cavity (26) is formed in the movable seat (2), the positioning tooth block (27) is insertedly arranged in the limiting insertion cavity (26), and a threaded rod (28) which is threadedly connected with the positioning tooth block (27) is rotatably arranged in the limiting insertion cavity (26).

4. A portable leg exercise aid according to claim 1, wherein: A limiting ring (3) is formed in the inner side of the frame (1), the rotating disc (31) is rotatably arranged in the limiting ring (3), a through cavity (32) is formed in the middle of the rotating disc (31), a positioning seat (33) is fixedly arranged in the inner side of the frame (1), the positioning seat (33) is arranged in the through cavity (32), a plurality of first positioning insertion grooves (34) are formed in the outer periphery of the positioning seat (33), a plurality of second positioning insertion grooves (35) are formed in the inner wall of the through cavity (32), and a positioning insertion block (36) is insertedly arranged between the first positioning insertion groove (34) and the second positioning insertion groove (35).

5. A portable leg exercise aid according to claim 4, wherein: A limiting sliding pin (38) is fixedly arranged on the surface of each positioning insertion block (36), a rotating plate (37) which is rotatably connected with the surface of the positioning seat (33) is arranged in the through cavity (32), an arc-shaped sliding groove (39) which is matched with the number of limiting sliding pins (38) is formed in the inner side of the rotating plate (37), and the limiting sliding pin (38) and the arc-shaped sliding groove (39) are slidably connected with each other.

6. A portable leg exercise aid as claimed in claim 1, wherein: The frame (1) is made of high-strength and light-weight aluminum alloy material, and the surface thereof is covered with a rubber coating which is anti-skid and comfortable, and the inner side of the binding belt (11) is provided with a soft pad.

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