Leg support walking aid based on flexible structure

Abstract

The utility model discloses a leg support walking aid based on a flexible structure, which relates to the technical field of leg support walking aids and comprises a four-wheel movable main frame, and a height-adjustable grip is fixedly mounted above the four-wheel movable main frame; guide telescopic leg supports are fixedly installed on the left inner wall and the right inner wall of the four-wheel movable main frame, each guide telescopic leg support comprises a guide column, a lifting sliding block, an L-shaped supporting plate, a sliding plate and a flexible supporting pad, each lifting sliding block is installed in a guide groove in the corresponding guide column in a lifting mode, and one side of each L-shaped supporting plate is connected with the corresponding side of the corresponding lifting sliding block through a lily hinge. The flexible supporting pad is telescopically mounted on one side of the L-shaped supporting plate through the sliding plate; according to the utility model, a flexible structure is adopted, so that a leg curve can be better fitted; the height of the flexible supporting pad can be adjusted through the design of the guide telescopic leg support and the cooperation of a third screw rod and a guide column; the sliding plate is matched with the L-shaped supporting plate through a fourth screw rod and a guide column, the position of the flexible supporting pad can be easily adjusted, and the device is suitable for different use scenes.

Description

Technical Field

[0001] This utility model relates to the field of leg support walking aids, and in particular to a leg support walking aid based on a flexible structure. Background Technology

[0002] In the field of devices that assist people with mobility impairments to walk, walking aids play a vital role; however, traditional walking aids have many undeniable shortcomings, which limit the user's experience and ability to improve mobility.

[0003] From the perspective of leg support structure, traditional walking aids mostly use rigid materials and fixed structural designs. For example, common plastic or wooden leg supports are hard and cannot adapt to the leg curves of different users. For people with leg injuries, muscle atrophy, or limb deformities, such rigid leg supports not only fail to provide close support but also cause local pressure concentration during use, aggravating pain and potentially affecting limb recovery with long-term use. In terms of adjustment function, traditional walking aids have extremely limited adjustment methods. Regarding height adjustment, most traditional walking aids can only switch between 2 to 3 fixed height levels, which cannot accurately adapt to the needs of users of different heights. In view of this, this paper proposes a leg support walking aid based on a flexible structure. Utility Model Content

[0004] The main objective of this invention is to provide a leg support walking aid based on a flexible structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A leg support walking aid based on a flexible structure includes a four-wheeled movable main frame, and an adjustable handle is fixedly installed on the top of the four-wheeled movable main frame;

[0007] Guide telescopic leg supports are fixedly installed on the left and right inner walls of the four-wheel movable main frame. Each guide telescopic leg support includes a guide column, a lifting slider, an L-shaped support plate, a sliding plate, and a flexible support pad. The guide column is fixedly connected to the four-wheel movable main frame. The lifting slider is lifted and installed in the guide groove in the guide column. A third screw is rotatably installed in the guide groove. The third screw is threadedly connected to the lifting slider. One side of the L-shaped support plate is connected to the corresponding side of the lifting slider through a lily leaf. The L-shaped support plate can complete a 90° rotation and folding action with the rotation center of the lily leaf as the axis. The flexible support pad is telescopically installed on one side of the L-shaped support plate through the sliding plate.

[0008] Preferably, the adjustable grip consists of a symmetrical W-shaped two-hand grip walking aid, two first screws, two adjusting nuts, and two second screws. The two second screws are respectively vertically installed on both sides of the front end of the four-wheel movable main frame. The lower ends of the two adjusting nuts are respectively threaded onto the two second screws. The lower ends of the two first screws are respectively threaded onto the upper ends of the two adjusting nuts. The threads on the first and second screws rotate in opposite directions. The top ends of the two telescopic first screws are respectively fixedly installed on the lower sides of the front end of the symmetrical W-shaped two-hand grip walking aid.

[0009] Preferably, a fourth screw is provided below the skateboard, the first end of the fourth screw is rotatably connected to the left side of the skateboard, the end of the fourth screw is threaded into the L-shaped support plate, and the first end of the fourth screw is fixedly connected to a second handwheel.

[0010] Preferably, a plurality of guide rods are fixedly installed inside the L-shaped support plate, and the guide rods are telescopically installed inside the slide plate.

[0011] Preferably, a first buffer pad is fixedly connected to one side of the fixed leaf in the lily leaf, and a second buffer pad is fixedly connected to the side of the lifting slider facing the L-shaped support plate.

[0012] Preferably, the top end of the third screw is fixedly connected to a first handwheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Flexible and comfortable support: The flexible support pad has a flexible structure that can better conform to the curves of the legs, distribute pressure, and reduce the burden on the legs; during walking, it provides comfortable support for users and reduces leg discomfort caused by prolonged use of the walking aid.

[0015] 2. Flexible height adjustment: Through the design of the guide telescopic leg rest, the height of the flexible support pad can be precisely adjusted by the cooperation of the third screw and the guide column; the height-adjustable handle can flexibly adjust the height of the symmetrical W-shaped two-hand grip walking aid handle by adjusting the distance nut and the first and second screws with different thread directions, so as to meet the needs of users of different heights and improve the versatility and comfort of the walking aid.

[0016] 3. Convenient storage and adjustment: The L-shaped tray can be rotated and folded 90° using the hinges, making it easy to unfold, use, and store. The skateboard and the L-shaped tray are connected by a fourth screw and guide post, which allows for easy adjustment of the position of the flexible support pad to adapt to different usage scenarios.

[0017] 4. Durability and Low Noise: The first and second buffer pads at the lily flaps and lifting slider not only reduce wear on components and extend the life of the walker, but also reduce noise during use, providing users with a quieter and more comfortable experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the guide telescopic leg support in this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the structure of the guide telescopic leg support in this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the structure of the lily leaf, the first buffer pad, and the second buffer pad in this utility model.

[0022] In the diagram: 1. Four-wheel movable main frame; 2. Adjustable height handle; 201. Symmetrical W-shaped two-hand grip walking aid bar; 202. First screw; 203. Adjustable distance nut; 204. Second screw; 3. Guide telescopic leg rest; 301. Guide column; 302. Lifting slider; 303. Third screw; 304. First handwheel; 305. L-shaped support plate; 306. Slide board; 307. Flexible support pad; 308. First strap; 309. Second handwheel; 310. Second strap; 311. Arc-shaped groove; 312. Lily leaf; 313. First buffer pad; 314. Second buffer pad; 315. Fourth screw; 316. Guide rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-4 As shown, a leg support walker based on a flexible structure includes a four-wheeled movable main frame 1. The four-wheeled movable main frame 1 provides stable support and mobility for the entire walker, facilitating user activities indoors and outdoors. An adjustable handle 2 is fixedly installed on the top of the four-wheeled movable main frame 1. Guide telescopic leg supports 3 are fixedly installed on the left and right inner walls of the four-wheeled movable main frame 1. The height of the four-wheeled movable main frame 1 accounts for about 1 / 3 of the overall height, the height of the adjustable handle 2 accounts for about 1 / 3 of the overall height, and the guide telescopic leg supports 3 account for about 1 / 3 of the overall height in the vertical direction.

[0025] refer to Figure 1As shown, the adjustable grip 2 consists of a symmetrical W-shaped two-hand grip walking aid 201, two first screws 202, two adjusting nuts 203, and two second screws 204. The two second screws 204 are respectively vertically installed on both sides of the front end of the four-wheel movable main frame 1. The lower ends of the two adjusting nuts 203 are respectively threaded onto the two second screws 204. The lower ends of the two first screws 202 are respectively threaded onto the upper ends of the two adjusting nuts 203. The threads on the first screws 202 and the second screws 204 rotate in opposite directions. The top ends of the two telescopic first screws 202 are respectively fixedly installed on the lower sides of the front end of the symmetrical W-shaped two-hand grip walking aid 201.

[0026] It should be noted that before use, the height of the adjustable handle 2 can be adjusted according to the user's height. By rotating the adjusting nut 203, since the threads on the first screw 202 and the second screw 204 rotate in opposite directions, the rotation of the adjusting nut 203 will cause the first screw 202 to rise or fall, thereby realizing the adjustment of the height of the symmetrical W-shaped two-hand grip walking aid handle 201, so that the user can grip it comfortably.

[0027] refer to Figure 2 and Figure 3 As shown, the telescopic leg support 3 includes a guide post 301, a lifting slider 302, an L-shaped support plate 305, a sliding plate 306, and a flexible support pad 307. The flexible support pad 307 is specifically made of sponge, which is soft and conforms better to the leg's curve, distributing pressure. The guide post 301 is made of high-strength aluminum alloy, which is lightweight, high-strength, and corrosion-resistant, ensuring stability and durability during support and adjustment. The lifting slider 302 is made of engineering plastic, which has good wear resistance and self-lubricating properties, reducing friction with the guide post 301 and ensuring smooth lifting. The L-shaped support plate 305 is made of lightweight and sturdy carbon fiber composite material, reducing overall weight while ensuring structural strength, making it convenient for users to operate. The upper surface of the flexible support pad 307 is provided with an arc-shaped groove 311 for guiding... The column 301 and the four-wheel movable main frame 1 are fixedly connected. The lifting slider 302 is lifted and installed in the guide groove in the guide column 301. The third screw 303 is rotatably installed in the guide groove. The third screw 303 and the lifting slider 302 are threadedly connected. The top end of the third screw 303 is fixedly connected to the first handwheel 304. One side of the L-shaped support plate 305 is connected to the corresponding side of the lifting slider 302 through the lily flap 312. The L-shaped support plate 305 can complete a 90° rotation and folding action with the rotation center of the lily flap 312 as the axis. The flexible support pad 307 is telescopically installed on one side of the L-shaped support plate 305 through the sliding plate 306. The side of the sliding plate 306 is rotatably connected to the fourth screw 315. The end of the fourth screw 315 is threadedly installed at the lower end of the L-shaped support plate 305. The first end of the fourth screw 315 is fixedly connected to the second handwheel 309.

[0028] Further explanation is needed: If the extension length of the flexible support pad 307 needs to be adjusted, stand to the side of the walker, hold the second handwheel 309, and turn the second handwheel 309 clockwise. The fourth screw 315 will turn clockwise, causing the slide plate 306 to extend outward within the L-shaped support plate 305, and the flexible support pad 307 will extend accordingly. Turn the second handwheel 309 counterclockwise, and the fourth screw 315 will turn counterclockwise. The slide plate 306 will retract inward within the L-shaped support plate 305, and the flexible support pad 307 will also retract accordingly. Stop turning after adjusting to the appropriate position.

[0029] refer to Figure 3 and Figure 4 As shown, two first straps 308 are fixedly installed on the left side of the skateboard 306, and two second straps 310 are fixedly installed on the right side of the L-shaped tray 305. The first straps 308 and the second straps 310 are connected by Velcro. After folding, the L-shaped tray 305 can be bound to the upper end of the guide post 301 by the first straps 308 and the second straps 310. Several guide rods 316 are fixedly installed inside the L-shaped tray 305. The guide rods 316 are telescopically installed inside the skateboard 306. A first buffer pad 313 is fixedly connected to one side of the fixed leaf in the lily leaf 312, and a second buffer pad 314 is fixedly connected to the side of the lifting slider 302 facing the L-shaped tray 305.

[0030] In this embodiment, when adjusting the guide telescopic leg support 3 according to the user's leg length and usage needs: Adjust the height of the guide telescopic leg support 3, stand on the side of the walker, hold the first handwheel 304 with your hand, turn the first handwheel 304 clockwise, and the third screw 303 will turn clockwise accordingly. Since the third screw 303 is threadedly connected to the lifting slider 302, the lifting slider 302 will rise in the guide groove of the guide post 301, thereby driving the L-shaped support plate 305 and the flexible support pad 307 to rise. Turn the first handwheel 304 counterclockwise, and the third screw 303 will rotate counterclockwise, the lifting slider 302 will descend, and the L-shaped support plate 305 and the flexible support pad 307 will also descend accordingly. Stop rotating after adjusting to a suitable height.

[0031] When the walker needs to be stored, first retract the flexible support pad 307 to its shortest position. Then, using the lily leaf 312 as the axis, rotate and fold the L-shaped tray 305 upwards by 90°. After folding, attach the first strap 308 and the second strap 310 together with Velcro to fix the L-shaped tray 305 to the upper end of the guide post 301, reducing the space occupied by the walker.

[0032] Special handling procedures and precautions for using this flexible-structure leg support walker: During the above adjustment process, if the first screw 202, the second screw 204, the third screw 303, and the fourth screw 315 become stuck, first check if any foreign objects have entered the threads or guide grooves. If so, clean the foreign objects before adjusting. If the sticking is due to thread damage, replace the corresponding screw or related parts in time. After use in a humid environment, dry the walker in time, especially the metal parts, to prevent rust. In high-temperature environments, avoid prolonged exposure of the walker to direct sunlight to prevent material performance degradation. For example, the sponge of the flexible support pad 1 may harden, affecting the comfort of use.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible structure based leg support walker comprising a four wheeled movable main frame (1) characterised in that: An adjustable handle (2) is fixedly installed on the top of the four-wheeled movable main frame (1); Guide telescopic leg supports (3) are fixedly installed on the left and right inner walls of the four-wheel movable main frame (1). The guide telescopic leg support (3) includes a guide column (301), a lifting slider (302), an L-shaped support plate (305), a sliding plate (306), and a flexible support pad (307). The guide column (301) is fixedly connected to the four-wheel movable main frame (1). The lifting slider (302) is lifted and installed in the guide groove in the guide column (301). The guide groove rotates within the guide groove. A third screw (303) is installed, which is threadedly connected to the lifting slider (302). One side of the L-shaped support plate (305) is connected to the corresponding side of the lifting slider (302) through a lily leaf (312). The L-shaped support plate (305) can complete a 90° rotation and folding action with the rotation center of the lily leaf (312) as the axis. The flexible support pad (307) is telescopically installed on one side of the L-shaped support plate (305) through a sliding plate (306).

2. The flexible structure-based leg support walker of claim 1, wherein: The adjustable grip (2) is composed of a symmetrical W-shaped two-hand grip walking aid (201), two first screws (202), two adjusting nuts (203) and two second screws (204). The two second screws (204) are respectively vertically installed on both sides of the front end of the four-wheel movable main frame (1). The lower ends of the two adjusting nuts (203) are respectively threaded onto the two second screws (204). The lower ends of the two first screws (202) are respectively threaded onto the upper ends of the two adjusting nuts (203). The threads on the first screws (202) and the second screws (204) rotate in opposite directions. The top ends of the two telescopic first screws (202) are respectively fixedly installed on the lower sides of the front end of the symmetrical W-shaped two-hand grip walking aid (201).

3. The flexible structure-based leg support walker of claim 1, wherein: The slide plate (306) is provided with parallel fourth screws (315) below it. The first end of the fourth screw (315) is rotatably connected to the left side of the slide plate (306), and the end of the fourth screw (315) is threaded into the L-shaped support plate (305). The first end of the fourth screw (315) is fixedly connected to the second handwheel (309).

4. The flexible structure-based leg support walker of claim 1, wherein: A number of guide rods (316) are fixedly installed inside the L-shaped support plate (305), and the guide rods (316) are telescopically installed inside the slide plate (306).

5. The flexible structure-based leg support walker of claim 1, wherein: A first buffer pad (313) is fixedly connected to one side of the fixed leaf in the lily leaf (312), and a second buffer pad (314) is fixedly connected to the side of the lifting slider (302) facing the L-shaped support plate (305).

6. The leg support walking aid based on a flexible structure according to claim 1, characterized in that: The top end of the third screw (303) is fixedly connected to the first handwheel (304).

Images