CN216365850U - Walker - Google Patents

Abstract

The embodiments of the present utility model relate to the technical field of walkers, in particular to a walker. The walker includes a first bracket, a second bracket and a folding mechanism. Wherein, the first bracket includes a first main bracket and a first auxiliary bracket, and the first main bracket is provided with a first armrest. The second bracket includes a second main bracket and a second auxiliary bracket, and a second armrest is arranged on the second main bracket. The first bracket and the second bracket are connected by a folding mechanism, and the folding mechanism is used to adjust the distance between the first bracket and the second bracket. The first sub-support includes a first support rod and a second support rod, the first support rod is fixed with the first main support, and the second support rod is rotatably connected with the first support rod. The second auxiliary support includes a third support rod and a fourth support rod, the third support rod is fixed with the second main support, and the third support rod is rotatably connected with the fourth support rod. That is, the walker provided by the embodiment of the present invention improves the technical problem of the current walker being inconvenient to carry.

Description

Walker

technical field

The embodiments of the present utility model relate to the technical field of walkers, in particular to a walker.

Background technique

With the intensification of the aging of my country's population, the travel needs and travel modes of the elderly have become an increasingly noteworthy social topic. In addition, there are a large number of patients with knee osteoarthritis in my country. These people have limited mobility and are prone to falls, and have an urgent need for healthy mobility.

For the elderly with walking difficulties, a common method is to use a walker to assist walking. Common walking aids, such as crutches, provide unilateral support, making it difficult to maintain balance after prolonged use. Therefore, walkers with bilateral support, such as "four-legged crutches", were introduced.

Due to the need to provide bilateral support and to take into account the stability, the area formed by the multiple contact points between the walker and the ground should not be too small. Furthermore, in order to facilitate the user to hold with both hands, the distance between the holding parts of the walker should be as wide as the shoulders. Based on the above, the walker occupies a large three-dimensional space and is inconvenient to carry.

Utility model content

The utility model aims to provide a walker to improve the technical problem of the inconvenience of carrying the current walker.

A technical solution adopted by the utility model is to provide a walking aid, which includes a first bracket, a second bracket and a folding mechanism. The first bracket includes a first main bracket and a first auxiliary bracket arranged below the first main bracket, the first main bracket is provided with a first handrail; the second bracket includes a second main bracket and a first auxiliary bracket arranged on the first main bracket. A second sub-bracket under the second main bracket, a second armrest is arranged on the second main bracket; a folding mechanism, the first bracket and the second bracket are connected by the folding mechanism to adjust the first bracket The spacing between a bracket and the second bracket. Wherein, the first auxiliary support includes a first support rod and a second support rod, the first support rod is fixed with the first main support, and the second support rod is rotatably connected with the first support rod. The second auxiliary support includes a third support rod and a fourth support rod, the third support rod is fixed with the second main support, and the third support rod is rotatably connected with the fourth support rod. The first support rod and the third support rod are disposed opposite to each other, and the second support rod and the fourth support rod are disposed opposite to each other.

Optionally, the first main support and the second main support are telescopic structures.

Optionally, the first main support includes a first sleeve and a first cannula, the lower end of the first sleeve is fixedly connected to the first auxiliary support, and the upper edge of the side wall of the first sleeve is A number of first positioning holes are arranged in sequence in the axial direction. The first handrail is arranged on the upper end of the first cannula, a first pin is arranged on the first cannula, the lower end of the first cannula is inserted into the first sleeve, and the first cannula is inserted into the first sleeve. A pin shaft passes through the first positioning hole to fix the first cannula and the first sleeve. The second main support includes a second sleeve and a second cannula, the second sleeve is fixedly connected to the second sub-support, and the side wall of the second sleeve is axially provided with several a second positioning hole. The second handrail is provided on the upper end of the second cannula, the second cannula is provided with a second pin, the lower end of the second cannula is inserted into the second sleeve, the second The pin shaft passes through the second positioning hole to fix the second cannula and the second sleeve.

Optionally, the folding mechanism includes a first connecting rod and a second connecting rod, the first connecting rod rotates around the third support rod, and one end of the first connecting rod rotates with the third support rod connected, and the other end of the first connecting rod is movably connected with the first main bracket. The second connecting rod rotates around the first supporting rod, one end of the second connecting rod is rotatably connected with the first supporting rod, and the other end of the second connecting rod is movable with the second main bracket connect.

Optionally, the first main bracket is provided with a first movable portion, one end of the first movable portion is rotatably connected to the first main bracket, and the other end of the first movable portion is provided with a first rotating member , the first rotating member is rotatably mounted on the first movable portion, and the first rotating member is slidably connected with the first connecting rod. The second main bracket is provided with a second movable portion, one end of the second movable portion is rotatably connected with the second main bracket, the other end of the first movable portion is provided with a second rotating member, and the first movable portion is provided with a second rotating member. Two rotating members are rotatably mounted on the second movable portion, and the second rotating members are slidably connected with the second connecting rod.

Optionally, the first movable portion is provided with a first limit rod, and the first limit rod is used to limit the rotation angle of the first connecting rod. The first connecting rod is provided with a first hook, the first movable portion is provided with a first protrusion, and the first hook is sleeved on the first protrusion. The second movable part is provided with a second limit rod, and the second limit rod is used to limit the rotation angle of the second connecting rod. The second connecting rod is provided with a second hook, the second movable portion is provided with a second protrusion, and the second hook is sleeved on the second protrusion.

Optionally, the first limit rod extends out of the outer wall of the first movable portion to form the first protrusion, and the second limit rod extends out of the outer wall of the second movable portion to form the first protrusion. Two bulges.

Optionally, the first connecting rod intersects the second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected at the intersection.

Optionally, the first main bracket is provided with a first fixing member for fixing the first main bracket and the second support rod when the walker is folded. The second main bracket is provided with a second fixing member for fixing the second main bracket and the fourth support rod when the walker is folded.

Optionally, the walker further includes a first roller group and a second roller group, the first roller group includes a first universal wheel and a first directional wheel, and the first universal wheel is provided at the An end of the first support rod away from the second support rod, and the first directional wheel is provided at an end of the second support rod away from the first support rod. The second roller set includes a second universal wheel and a second directional wheel, the second universal wheel is provided at the end of the third support rod away from the fourth support rod, and the second directional wheel is provided. at the end of the fourth support rod away from the third support rod.

Compared with the prior art, the walker of the embodiment of the present invention has the following beneficial effects:

The walker includes a first bracket, a second bracket and a folding mechanism. Wherein, the first bracket includes a first main bracket and a first auxiliary bracket, and the first main bracket is provided with a first handrail. The second bracket includes a second main bracket and a second auxiliary bracket, and the second main bracket is provided with a second armrest. The first bracket and the second bracket are connected by a folding mechanism, and the folding mechanism is used to adjust the distance between the first bracket and the second bracket. The first sub-support includes a first support rod and a second support rod, the first support rod is fixed with the first main support, and the second support rod is rotatably connected with the first support rod. The second auxiliary support includes a third support rod and a fourth support rod, the third support rod is fixed with the second main support, and the third support rod is rotatably connected with the fourth support rod. The first support rod and the third support rod are disposed opposite to each other, and the second support rod and the fourth support rod are disposed opposite to each other.

When the walker needs to work in the unfolded state, the first sub-support and the second sub-support are in contact with the ground, the user holds the first armrest and the second armrest, and moves the first connecting rod and the second connecting rod toward the ground. The distance between the first main bracket and the second main bracket is increased to open the walker. When the walker is stored, the first connecting rod and the second connecting rod are moved away from the ground, and the distance between the first main support and the second main support is reduced; secondly, the second support rod is moved toward the first main support , and move the fourth support rod toward the direction of the second main support to realize the folding of the walker. Then, the overall three-dimensional space occupied by the walker is reduced, which is convenient for further storage and carrying. That is, the embodiments of the present invention improve the technical problem that the current walking aid is inconvenient to carry.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the specific embodiments will be briefly introduced below. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

FIG. 1 is a schematic perspective view of a walker provided by an embodiment of the present invention in an unfolded state.

FIG. 2 is a schematic perspective view of the walker of FIG. 1 from another perspective.

FIG. 3 is a schematic perspective view of the walker in FIG. 1 in a folded state.

FIG. 4 is an exploded schematic view of the walker in FIG. 1 .

FIG. 5 is a partial enlarged view A of the walker in FIG. 1 .

FIG. 6 is a partial enlarged view B of the walker in FIG. 2 .

In the picture: 1. Walker

100, the first bracket; 110, the first main bracket; 111, the first armrest; 112, the first sleeve; 1121, the first positioning hole; 113, the first cannula; 114, the first movable part; 120, the first A pair of brackets; 121, a first support rod; 122, a second support rod;

200, the second bracket; 210, the second main bracket; 211, the second armrest; 212, the second sleeve; 213, the second cannula; 214, the second movable part; 2141, the second rotating member; Two limit rods; 2143, the second protrusion; 220, the second auxiliary bracket; 221, the third support rod; 222, the fourth support rod;

300, folding mechanism; 310, first connecting rod; 320, second connecting rod; 321, second hook; 330, third pin;

400, the first roller group; 410, the first universal wheel; 420, the second directional wheel;

500, the second roller group; 510, the second universal wheel; 520, the second directional wheel;

600, brake department; 610, handbrake.

Detailed ways

In order to facilitate the understanding of the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element, or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in this specification are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the technical field belonging to the present invention. The terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not used to limit the present invention. As used in this specification, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

Please refer to FIG. 1 , FIG. 3 and FIG. 4 together, which are a perspective view of the unfolded state, a perspective view of the folded state, and an exploded view of the unfolded state of the walker 1 respectively. The walker 1 includes a first bracket 100 , The second bracket 200 and the folding mechanism 300 . The first bracket 100 further includes a first main bracket 110 and a first sub bracket 120 , the first sub bracket 120 is disposed below the first main bracket 110 , and the first main bracket 110 is provided with a first armrest 111 . Correspondingly, the second bracket 200 further includes a second main bracket 210 and a second sub bracket 220 , the second sub bracket 220 is disposed below the second main bracket 210 , and the second main bracket 210 is provided with a second armrest 211 . The folding mechanism 300 is arranged between the first bracket 100 and the second bracket 200 to connect the first bracket 100 and the second bracket 200 , and is used to adjust the distance between the first bracket 100 and the second bracket 200 . The first sub-frame 120 and the second sub-frame 220 are in contact with the ground. The user of the walker 1 holds the first handrail 111 with one hand and the second handrail 211 with the other hand, and walks forward stably with the ground support force transmitted by the walker 1 . During storage, the distance between the first bracket 100 and the second bracket 200 is reduced by the folding mechanism 300 to realize the folding of the walker, that is, the lateral space of the walker 1 is compressed, which is convenient to carry.

In order to further facilitate the storage of the walker 1 , the first sub-support 120 and the second sub-support 220 are designed in two sections. Please refer mainly to FIG. 1 , and secondly to FIGS. 2 and 3 , the first auxiliary support 120 includes a first support rod 121 and a second support rod 122 , and the first support rod 121 is fixed to the first main support 110 . The first support rod 121 is rotatably connected with the second support rod 122 . Correspondingly, the second sub bracket 220 includes a third support rod 221 and a fourth support rod 222 , and the third support rod 221 is fixed to the second main bracket 210 . The third support rod 221 is rotatably connected with the fourth support rod 222 . It can be understood that the first support rod 121 is disposed opposite to the third support rod 221 , and the second support rod 122 is disposed opposite to the fourth support rod 222 . At the same time, in order to meet the working requirements of the walker 1 in the unfolded state, to ensure the overall linearity of the first sub-frame 120 and the second sub-frame 220, the rotational connection between the first support rod 121 and the second support rod 122 and the third support rod The rotational connection between the 221 and the fourth support rod 222 may choose a larger damping.

In order to fix the folded second support rod 122 and the fourth support rod 222, the first main bracket 110 is provided with a first fixing member (not shown), and the second main bracket 210 is provided with a second fixing member (not shown in the figure). Show). In addition to the fixing members provided on the first main bracket 110 and the second main bracket 210 , a latch mechanism may also be selected for positioning on the first sub bracket 120 and the second sub bracket 220 . For example, in the working state of the first sub-bracket 120 , that is, in the overall linear state, the latches are inserted in parallel to force the second support rod 122 and the first support rod 121 to maintain a fixed posture. When the first sub-bracket 120 needs to be folded, the latch is taken out, and after the second support rod 122 is rotated to a proper position, the latch is inserted to fix it. Or supplement other limiters to limit the position of each corner of the second support rod 122, on the one hand, it is convenient for the user to fold the walker 1 according to the specific situation, and on the other hand, the adjustment of each corner position of the second support rod 122 is also convenient. At the same time, the height of the handle position of the walker 1 and the ground and the inclination angle of the first main support 110 and the ground are adjusted, that is, appropriate adjustments can be made according to the user's usage habits.

Furthermore, the walker 1 can also be compressed in the longitudinal space. Please refer mainly to FIG. 3 , and secondly to FIG. 1 , the first main bracket 110 includes a first sleeve 112 and a first cannula 113 . The lower end of the first sleeve 112 is fixed to the first sub-support 120 . Specifically, the lower end of the first sleeve 112 is fixed to the first support rod 121 . Preferably, the first sleeve 112 is perpendicular to the first support rod 121 . A plurality of first positioning holes 1121 with equal intervals are sequentially provided on the side wall of the first sleeve 112 along the axial direction. Above the first sleeve 112 is a first cannula 113 , and the first cannula 113 is mounted on the first sleeve 112 . In order to make the walker 1 more portable, the first cannula 113 is hollow. The first handrail 111 is disposed on the upper end of the first intubation tube 113 . In addition, in order to cooperate with the positioning function of the first positioning hole 1121, a first pin (not shown) is provided on the first cannula 113, and the first pin passes through the first positioning hole 1121 to fix the first cannula 113 and the first cannula 113. The relative position of a sleeve 112. Preferably, the first pin is elastically connected with the first cannula 113 . When the first cannula 113 moves in the first sleeve 112, the first pin is in a compressed state. The first cannula 113 is adjusted to an appropriate position, that is, when the first pin is aligned with the first positioning hole 1121, the first pin naturally pops out, passes through the first positioning hole 1121, and the first sleeve 112 and the first cannula 113 forms a fix. Of course, the first pin shaft can also be an independent part, and a plurality of auxiliary positioning holes matching the first positioning holes 1121 are sequentially provided on the side wall of the first cannula 113 along the axial direction. The positioning of the first cannula 113 and the first sleeve 112 can be achieved by inserting the first pin shaft through the first positioning hole 1121 and the auxiliary positioning hole. It can be understood that the positioning of the first cannula 113 and the first sleeve 112 is not limited to pin positioning, but may also be threaded fasteners or snap positioning, which is not limited by the present invention.

Accordingly, with continued reference to FIG. 3 , the second main bracket 210 includes a second sleeve 212 and a second cannula 213 . The second sleeve 212 is fixedly connected with the second sub-support 220 . Specifically, the second sleeve 212 is fixedly connected with the third support rod 221 . The side wall of the second sleeve 212 is provided with a plurality of second positioning holes (not shown) at equal intervals in sequence along the axial direction. The second handrail 211 is disposed on the upper end of the second intubation tube 213 . The second cannula 213 is provided with a second pin (not shown), the lower end of the second cannula 213 is inserted into the second sleeve 212, and the second pin passes through the second positioning hole to fix the second cannula 213 and The second sleeve 212 . Of course, the first main support 110 and the second main support 210 may also be other telescopic structures, such as scissor structures, which are not listed here in the present invention.

Regarding the folding mechanism 300, please refer mainly to FIG. 1 and FIG. 5, and then refer to FIG. 2 and FIG. 6. The folding mechanism 300 includes a first connecting rod 310 and a second connecting rod 320. One end of the second connecting rod 320 is connected to the first support rod 121. The other end of the second connecting rod 320 is movably connected with the second main bracket 210 by being rotatably connected and rotating with the first support rod 121 as the axis. Specifically, the second main bracket 210 is provided with a second movable portion 214 , and one end of the second movable portion 214 is rotatably connected to the second main bracket 210 . Preferably, the second movable portion 214 is rotatably connected with the second sleeve 212 . The other end of the second movable portion 214 is provided with a second rotating member 2141 , the second rotating member 2141 is rotatably mounted on the second movable portion 214 , and the second rotating member 2141 is slidably connected with the second connecting rod 320 . In this way, the crank-slider mechanism is constituted above, and the distance between the first bracket 100 and the second bracket 200 also changes during the rotation of the second connecting rod 320 around the first support rod 121 . Of course, the embodiment of the present invention is not limited to the crank-slider type of movable connection, and may also be other types, such as a connecting rod mechanism, and the embodiment of the present invention is not limited here.

Correspondingly, the first connecting rod 310 rotates around the third supporting rod 221 , one end of the first connecting rod 310 is rotatably connected with the third supporting rod 221 , and the other end of the first connecting rod 310 is movably connected with the first main bracket 110 . The first main bracket 110 is provided with a first movable portion 114 , and one end of the first movable portion 114 is rotatably connected to the first main bracket 110 . The other end of the first movable portion 114 is provided with a first rotating member (not shown), the first rotating member is rotatably mounted on the first movable portion 114 , and is slidably connected with the first connecting rod 310 .

Further, in order to limit the rotation angle of the second connecting rod 320 , please refer to FIG. 1 , FIG. 2 and FIG. 6 , the second movable portion 214 is provided with a second limiting rod 2142 , and the second limiting rod 2142 is connected to the second limiting rod 2142 . The connecting rods 320 intersect. The second limiting rod 2142 plays a limiting role for the rotation of the second connecting rod 320 toward the ground. At the same time, the second movable portion 214 is further provided with a second protrusion 2143 , and the second connecting rod 320 is provided with a second hook 321 near the second movable portion 214 . The second hook 321 is sleeved on the second protrusion 2143 . The second hook 321 can be used to restrict the rotation of the second connecting rod 320 away from the ground. Specifically, the second protrusion 2143 may be a part of the second limiting rod 2142 extending beyond the second movable portion 214 , or may be a partial protrusion formed on the second movable portion 214 . It can be understood that, the second hook 321 can also be an independent part.

Correspondingly, the first movable portion 114 is provided with a first limiting rod (not shown), and the first limiting rod is used to limit the rotation angle of the first connecting rod 310 toward the ground. The first connecting rod 310 is provided with a first hook (not shown), the first movable portion 114 is provided with a first protrusion (not shown), and the first hook is sleeved on the first protrusion. The first hook is used to limit the rotation angle of the first connecting rod 310 away from the ground.

In order to ensure the stability of the walker 1 , the first connecting rod 310 intersects the second connecting rod 320 . Referring to FIG. 1 , the first connecting rod 310 and the second connecting rod 320 are respectively provided with a first through hole and a second through hole at the intersection, and the walker 1 is provided with a third pin shaft 330 . The third pin shaft 330 passes through the first through hole and the second through hole. In this way, the first connecting rod 310 and the second connecting rod 320 are rotatably connected around the third pin shaft 330 .

In order to facilitate the user to drag the walker 1 , the walker 1 is further provided with a first roller set 400 and a second roller set 500 . Please refer specifically to FIG. 1 , the first roller set 400 is disposed at the lower end of the first sub-support 120 , and the first roller set 400 includes a first universal wheel 410 and a first directional wheel 420 . The first universal wheel 410 is disposed at one end of the first support rod 121 away from the second support rod 122 , and is a front wheel. The universal wheel helps the walker 1 to adjust the forward direction. The first directional wheel 420 is disposed at the end of the second support rod 122 away from the first support rod 121 , and is a rear wheel. Correspondingly, the second roller set 500 is disposed below the second sub-support 220 , and the second roller set 500 includes a second universal wheel 510 and a second directional wheel 520 . The second universal wheel 510 is disposed at the end of the third support rod 221 away from the fourth support rod 222 , and the second directional wheel 520 is disposed at the end of the fourth support rod 222 away from the third support rod 221 .

Based on safety considerations, the walker 1 further includes a braking portion 600. Please refer to FIG. 1 for details. The braking portion 600 includes a handbrake 610, a braking member (not shown) and a connecting wire (not shown). The walker 1 is provided with a handbrake 610 , which are respectively disposed under the first armrest 111 and the second armrest 211 , so as to facilitate the user to control the movement state of the walker 1 . The brakes are arranged on the first roller set 400 and the second roller set 500 . Preferably, the brakes are provided on the first directional wheel 420 and the second directional wheel 520 . The connecting line connects the handbrake 610 and the brake piece.

Based on the consideration of the user's comfort, the walker 1 further includes a seat cushion (not shown) and a seat belt (not shown). The seat cushion and the backrest are made of elastic material. The seat cushion has two ends, one end of the first connecting rod 310 close to the first movable part 114 and the other end of the second connecting rod 320 close to the second movable part 214 . The strap is provided with two ends, one end is connected to the first bracket 100 and the other end is connected to the second bracket 200 .

To sum up, the embodiments of the present invention provide a walking aid, which includes a first bracket, a second bracket and a folding mechanism. Wherein, the first bracket includes a first main bracket and a first auxiliary bracket, and the first main bracket is provided with a first handrail. The second bracket includes a second main bracket and a second auxiliary bracket, and the second main bracket is provided with a second armrest. The first bracket and the second bracket are connected by a folding mechanism, and the folding mechanism is used to adjust the distance between the first bracket and the second bracket. The first sub-support includes a first support rod and a second support rod, the first support rod is fixed with the first main support, and the second support rod is rotatably connected with the first support rod. The second auxiliary support includes a third support rod and a fourth support rod, the third support rod is fixed with the second main support, and the third support rod is rotatably connected with the fourth support rod. The first support rod and the third support rod are disposed opposite to each other, and the second support rod and the fourth support rod are disposed opposite to each other.

When the walker needs to work in the unfolded state, the first sub-support and the second sub-support are in contact with the ground, the user holds the first armrest and the second armrest, and moves the first connecting rod and the second connecting rod toward the ground. The distance between the first main bracket and the second main bracket is increased. When the walker is stored, the first connecting rod and the second connecting rod are moved away from the ground, and the distance between the first main support and the second main support is reduced; secondly, the second support rod is moved toward the first main support , and move the fourth support rod toward the direction of the second main bracket. Then, the overall three-dimensional space occupied by the walker is reduced, which is convenient for further storage and carrying. That is, the embodiments of the present invention improve the technical problem that the current walking aid is inconvenient to carry.

It should be noted that the description of the present utility model and the accompanying drawings provide preferred embodiments of the present utility model, but the present utility model can be realized in many different forms, and is not limited to the description in the present specification. Examples, these examples are not used as additional limitations to the content of the present invention, and the purpose of providing these examples is to make the understanding of the disclosure content of the present invention more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present utility model; further, for those of ordinary skill in the art, it can be improved or transformation, and all these improvements and transformations should belong to the protection scope of the appended claims of the present utility model.

Claims (10)

1. A walker, comprising:

the first support comprises a first main support and a first auxiliary support arranged below the first main support, and a first handrail is arranged on the first main support;

the second support comprises a second main support and a second auxiliary support arranged below the second main support, and a second handrail is arranged on the second main support; and

the first bracket and the second bracket are connected through the folding mechanism so as to adjust the distance between the first bracket and the second bracket;

the first auxiliary support comprises a first support rod and a second support rod, the first support rod is fixed with the first main support, and the second support rod is rotatably connected with the first support rod;

the second auxiliary support comprises a third support rod and a fourth support rod, the third support rod is fixed with the second main support, and the third support rod is rotatably connected with the fourth support rod;

the first supporting rod and the third supporting rod are arranged oppositely, and the second supporting rod and the fourth supporting rod are arranged oppositely.

2. The walker of claim 1 wherein said first and second main brackets are telescoping structures.

3. The walking aid of claim 2, wherein the first main support comprises a first sleeve and a first insertion tube, the lower end of the first sleeve is fixedly connected with the first auxiliary support, and a plurality of first positioning holes are sequentially arranged on the side wall of the first sleeve along the axial direction;

the first handrail is arranged at the upper end of the first insertion tube, a first pin shaft is arranged on the first insertion tube, the lower end of the first insertion tube is inserted into the first sleeve, and the first pin shaft penetrates through the first positioning hole to fix the first insertion tube and the first sleeve;

the second main support comprises a second sleeve and a second inserting pipe, the second sleeve is fixedly connected with the second auxiliary support, and a plurality of second positioning holes are sequentially formed in the side wall of the second sleeve along the axial direction;

the second handrail is arranged at the upper end of the second insertion tube, the second insertion tube is provided with a second pin shaft, the lower end of the second insertion tube is inserted into the second sleeve, and the second pin shaft penetrates through the second positioning hole to fix the second insertion tube and the second sleeve.

4. The walking aid of any one of claims 1 to 3, wherein the folding mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod rotates around the third supporting rod, one end of the first connecting rod is rotatably connected with the third supporting rod, and the other end of the first connecting rod is movably connected with the first main bracket;

the second connecting rod rotates around the first supporting rod, one end of the second connecting rod is rotatably connected with the first supporting rod, and the other end of the second connecting rod is movably connected with the second main support.

5. The walking aid of claim 4, wherein the first main support is provided with a first movable part, one end of the first movable part is rotatably connected with the first main support, the other end of the first movable part is provided with a first rotating member, the first rotating member is rotatably mounted on the first movable part, and the first rotating member is slidably connected with the first connecting rod;

the second main support is provided with a second movable part, one end of the second movable part is rotatably connected with the second main support, the other end of the first movable part is provided with a second rotating part, the second rotating part is rotatably arranged at the second movable part, and the second rotating part is slidably connected with the second connecting rod.

6. The walker according to claim 5 wherein the first movable portion is provided with a first stop bar for limiting the rotation angle of the first connecting rod;

the first connecting rod is provided with a first hook, the first movable part is provided with a first bulge, and the first hook is sleeved on the first bulge;

the second movable part is provided with a second limiting rod, and the second limiting rod is used for limiting the rotation angle of the second connecting rod;

the second connecting rod is provided with a second hook, the second movable part is provided with a second protrusion, and the second protrusion is sleeved with the second hook.

7. The walker of claim 6 wherein the first stop bar extends beyond the first active portion outer wall to form the first projection and the second stop bar extends beyond the second active portion outer wall to form the second projection.

8. The walker of claim 4 wherein said first connecting rod intersects said second connecting rod, said first connecting rod being pivotally connected to said second connecting rod at said intersection.

9. The walking aid of any one of claims 1 to 3, wherein the first main support is provided with a first fixing member for fixing the first main support and the second support bar in the folded state of the walking aid;

and a second fixing piece used for fixing the second main support and the fourth supporting rod under the condition that the walking aid is folded is arranged on the second main support.

10. The walking aid of any one of claims 1 to 3, further comprising a first roller set and a second roller set, wherein the first roller set comprises a first universal wheel and a first orientation wheel, the first universal wheel is arranged at one end of the first support rod, which is far away from the second support rod, and the first orientation wheel is arranged at one end of the second support rod, which is far away from the first support rod;

the second roller group comprises a second universal wheel and a second directional wheel, the second universal wheel is arranged at one end, deviating from the fourth supporting rod, of the third supporting rod, and the second directional wheel is arranged at one end, deviating from the third supporting rod, of the fourth supporting rod.

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