Leg assist device

Abstract

The utility model discloses a leg auxiliary device, which belongs to the technical field of human body auxiliary equipment and comprises a connecting rod, a leg binding piece and a universal structure, one end of the universal structure is fixedly connected with the connecting rod, and the other end of the universal structure is movably connected with the leg binding piece. The universal structure can automatically adjust the assisting angle according to the movement condition of the legs of the user, the device is suitable for complex terrain conditions such as climbing, slope descending and turning, the flexibility and adaptability of the device in various scenes are improved, and it is ensured that the user can obtain stable assisting force in the complex terrain.

Description

Technical Field

[0001] This utility model belongs to the field of human assistive device technology, and particularly relates to leg assistive devices. Background Technology

[0002] With the development of modern technology, assistive devices are increasingly widely used in rehabilitation medicine, physical enhancement, and daily living assistance. These devices can help patients with walking difficulties regain their mobility or provide additional physical support for people engaged in heavy manual labor. Currently, most wearable assistive devices on the market have relatively mature lumbar structure designs, generally employing adjustable telescopic structures. This design allows the lumbar support of the device to be adjusted according to the user's body shape to meet the needs of users of different body types. This adjustable telescopic structure improves the wearing comfort and versatility of the device, effectively addressing the shortcomings of traditional fixed structures in terms of adaptability.

[0003] While adjustable waist support designs are widely used in the market, existing technologies still have some shortcomings in leg assist design. Specifically, current devices typically use relatively fixed or simple mechanical connections between the leg straps and the assist mechanism. While this design provides some assistance, it cannot offer dynamic adjustment when the user performs complex movements (such as climbing, descending, or turning). This is because these connection structures lack sufficient flexibility to adjust the direction and angle of the assist according to the actual needs of leg movement, resulting in unsatisfactory assistance in complex terrain, potentially increasing user fatigue or reducing the efficiency of the equipment. Utility Model Content

[0004] To address the problems of existing leg assist designs lacking sufficient flexibility, being unable to adjust the direction and angle of assistance according to the actual needs of leg movement, resulting in unsatisfactory assistance effects in complex terrain, and potentially increasing user fatigue or reducing the efficiency of the device, this utility model provides a leg assist device that can improve flexibility.

[0005] The technical solution of this utility model is as follows:

[0006] This utility model of a leg assist device includes a connecting rod, a leg binding component, and a universal structure. One end of the universal structure is fixedly connected to the connecting rod, and the other end of the universal structure is movably connected to the leg binding component.

[0007] Furthermore, the universal structure includes a universal head and a limiting seat, with the universal head being engaged within the limiting seat.

[0008] Furthermore, the universal structure also includes a swing seat, a fixed cover, and a pin. The limiting seat is provided with a swing groove, the swing seat is installed in the swing groove, the universal head and the swing seat are both provided with through holes, the pin passes through the through holes, and the fixed cover covers the swing groove and surrounds the universal head and the swing seat.

[0009] Furthermore, the universal structure also includes a gasket and a bushing, with the swing seat disposed between the gasket and the bushing.

[0010] Furthermore, the swing seat includes a bottom and a protrusion, the through hole is provided on the protrusion, the universal head is provided inside the protrusion, and the bottom is located in the swing groove.

[0011] Furthermore, the fixed cover is provided with a first cylinder, and the bushing is provided with a second cylinder. The second cylinder surrounds the universal joint, the pin, and the swing seat. The diameter of the first cylinder is larger than the diameter of the second cylinder, and the first cylinder surrounds the second cylinder, the universal joint, the pin, and the swing seat.

[0012] Furthermore, the limiting seat and the fixing cover are provided with connecting holes and connecting members, and the connecting members are inserted into the connecting holes.

[0013] The beneficial effects of this utility model are as follows:

[0014] A universal joint is installed on the leg assist device. The universal joint can automatically adjust the assist angle according to the user's leg movement. It is suitable for complex terrain conditions such as climbing, descending and turning, and improves the flexibility and adaptability of the device in various scenarios, ensuring that the user can get stable assistance in complex terrain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the leg assist device of this utility model;

[0016] Figure 2 This is an exploded view of the universal structure of the leg assist device of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the limiting seat of the leg auxiliary device of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the swing seat of the leg assist device of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the fixing cover of the leg auxiliary device of this utility model;

[0020] Figure 6This is a schematic diagram of the structure of the bushing of the leg assist device of this utility model;

[0021] Reference numerals: 1. Connecting rod, 2. Leg strap, 3. Universal structure, 31. Universal head, 32. Limiting seat, 321. Swing groove, 33. Swing seat, 331. Bottom, 332. Protrusion, 34. Fixing cover, 341. First cylinder, 35. Pin, 36. Washer, 37. Bushing, 371. Second cylinder, 4. Through hole, 5. Connecting hole, 6. Connecting piece. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as "mounted on", "set on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0024] It should be understood that in the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0025] Furthermore, the terms “inner,” “upper,” “between,” “both sides,” “one side,” “top,” “side,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] It should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature.

[0027] It should be noted that the "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural, respectively.

[0028] Example 1

[0029] Please refer to Figures 1-6This utility model provides a leg assist device, including a connecting rod 1, a leg strap 2, and a universal structure 3. One end of the universal structure 3 is fixedly connected to the connecting rod 1, and the other end of the universal structure 3 is movably connected to the leg strap 2. (Refer to...) Figure 1 and Figure 2 The connecting rod 1 is a curved connecting rod. When the user wears this device, the connecting rod 1 forms a line from the side of the thigh to the front of the thigh. The universal structure 3 allows the leg strap 2 to swing around one end of the connecting rod 1. Especially when the user is climbing, descending, or turning, the universal structure 3 provides assistance to the user's thigh, allowing the thigh to switch angles more quickly, thus improving the flexibility and adaptability of the device in various scenarios.

[0030] Specifically, the universal structure 3 is a limited-angle universal structure. The reason for designing it as a limited-angle universal structure 3 is that the device is used for rehabilitation training and daily assistance. The most common movement for users is walking, and the user's thighs do not move much. The ability for the leg strap 2 to swing at a certain angle with the user's movements provides assistance and improves the device's flexibility. The universal structure 3 includes a universal head 31, a limiting seat 32, a swing seat 33, a fixing cover 34, a pin 35, a gasket 36, and a bushing 37. The universal head 31 is flat and round. The universal head 31 is secured within the limiting seat 32 by the swing seat 33 and the fixing cover 34. The limiting seat 32 has a swing groove 321, the width of which is the limited swing angle. Within the scope, the swing seat 33 is installed in the swing groove 321. Both the universal head 31 and the swing seat 33 are provided with through holes 4. The pin 35 passes through the through hole 4. The swing seat 33 is located between the gasket 36 and the bushing 37. The gasket 36 and the bushing 37 are used to reinforce the swing seat 33 in the limiting seat 32. Therefore, the gasket 36 and the bushing 37 can be omitted in this universal structure 3. The fixing cover 34 covers the swing groove 321 and surrounds the universal head 31, the swing seat 33 and the bushing 37. The swing seat 33 includes a bottom 331 and a protrusion 332. The through hole 4 is provided on the protrusion 332. The universal head 31 is provided in the protrusion 332. The bottom 331 is located in the swing groove 321.

[0031] Reference Figure 5 and Figure 6The fixed cover 34 is provided with a first cylinder 341, and the bushing 37 is provided with a second cylinder 371. The second cylinder 371 surrounds the universal joint 31, the pin 35, and the swing seat 33. The diameter of the first cylinder 341 is larger than the diameter of the second cylinder 371. The first cylinder 341 surrounds the second cylinder 371, the universal joint 31, the pin 35, and the swing seat 33. The universal structure 3 will be described in detail from the assembly process. First, the limiting seat 32 is provided on the leg connecting plate. The swing groove 321 is shaped like a circle in the middle with two side ears. The gasket 36 is first installed in the circular area of ​​the swing groove 321. The bottom 331 of the swing seat 33 is also shaped like a circle in the middle with two side ears. The width of the side ears of the swing seat 33 is smaller than the swing... The side ear width of the moving groove 321, i.e., the small side ear moves along the large side ear; next, the swing seat 33 is placed on the surface of the pad 36; then, the fixing cover 34 and the bushing 37 are inserted into one side of the universal head 31; further, the through hole 4 of the universal head 31 and the through hole 4 of the limiting seat 32 are aligned, and the pin 35 is inserted into the through hole 4; then, the bushing 37 is moved so that the bushing 37 surrounds the protrusion 332 of the universal head 31 and the swing seat 33; finally, the fixing cover 34 is moved again, the round hole of the fixing cover 34 surrounds the bushing 37, and the limiting seat 32 and the fixing cover 34 are provided with connecting holes 5 and connecting parts 6. The connecting parts 6 are inserted into the connecting holes 5. The connecting parts 6 are screws, so that the fixing cover 34 is fixedly connected to the limiting seat 32, and the universal head 31 is limited in the limiting seat 32.

[0032] Example 2

[0033] The difference from Embodiment 1 is that the universal structure 3 has no angle limitation. The universal structure 3 only includes a universal head 31 and a limiting seat 32. The universal head 31 is spherical, and the limiting seat 32 has a concave hemispherical shape. The universal head 31 is locked in the limiting seat 32, which can realize the fixation of the universal head 31 and the rotation of the universal head 31 within the limiting seat 32, so as to realize the 360-degree rotation of the leg strap around the universal head 31.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A leg support device, characterized in that The utility model provides a connecting rod (1), a leg banding piece (2) and universal structure (3), one end of universal structure (3) is fixedly connected connecting rod (1), the other end of universal structure (3) is movably connected with leg banding piece (2), universal structure (3) includes universal head (31) and limit seat (32), universal head (31) is clamped in limit seat (32), universal structure (3) still includes swing seat (33), fixed cover (34) and pin shaft (35), limit seat (32) is equipped with swing groove (321) in, swing seat (33) is installed in swing groove (321), universal head (31) and swing seat (33) are equipped with through -hole (4), pin shaft (35) is worn in through -hole (4), fixed cover (34) covers swing groove (321) and surrounds universal head (31) and swing seat (33), universal structure (3) still includes gasket (36) and bushing (37), swing seat (33) is located between gasket (36) and bushing (37), swing seat (33) includes bottom (331) and protruding portion (332), through -hole (4) is located on protruding portion (332), universal head (31) is located in protruding portion (332), bottom (331) is located in swing groove (321), fixed cover (34) is equipped with first cylinder (341), bushing (37) is equipped with second cylinder (371), second cylinder (371) surrounds universal head (31), pin shaft (35) and swing seat (33), the diameter of first cylinder (341) is greater than the diameter of second cylinder (371), first cylinder (341) surrounds second cylinder (371), universal head (31), pin shaft (35) and swing seat (33).

2. The leg assistance device according to claim 1, characterized in that Limit seat (32) and fixed cover (34) are equipped with connecting hole (5) and connecting piece (6), connecting piece (6) is worn in connecting hole (5).

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