Synchronous folding portable walking aid cart

Abstract

The utility model relates to the field of walking aid assistance, in particular to a synchronously-folded portable walking aid cart which comprises an auxiliary cart body, a folding assembly and a flexible cushion. The number of the auxiliary device vehicle bodies is two, and each auxiliary device vehicle body comprises a handlebar connecting rod, a swing connecting rod and an adjusting block. The folding assembly comprises a folding rod, a first connecting rod, a second connecting rod and a third connecting rod, one end of the folding rod is rotationally matched with an adjusting block of one auxiliary device vehicle body, and the other end of the folding rod is rotationally matched with a handlebar connecting rod of the other auxiliary device vehicle body; the two ends of the first connecting rod are rotationally matched with the folding rod and the limiting block respectively, the two ends of the second connecting rod are rotationally connected to the handlebar connecting rod and the swing connecting rod respectively, one end of the third connecting rod is rotationally matched with the first connecting rod, and the other end of the third connecting rod is rotationally and slidably matched with the second connecting rod; on the premise that safety and stability of the walking aid are guaranteed, the convenient folding capacity of the walking aid is improved.

Description

Technical Field

[0001] This application relates to the field of walking assistance, and in particular to a portable walking trolley that folds up simultaneously. Background Technology

[0002] Globally, the aging population is deepening, and the number of elderly people is increasing. As people age, their physical functions decline and their ability to walk becomes more limited, leading to a significant increase in demand for assistive walking devices. Furthermore, the elderly have higher requirements for the comfort, safety, and ease of use of these devices.

[0003] In the existing technology, walking aids include mirrored left and right vehicle bodies and a folding mechanism. The vehicle body is often equipped with handrails for support and braking, and the folding mechanism is used to fold the walking aid for easy carrying by the elderly.

[0004] Regarding the aforementioned technologies, although the walking aid can be folded into a smaller size through a secondary folding function, the applicant found in practice that this walking aid only considered the convenience of storage and ignored the fact that most users of the product are elderly people with mobility difficulties, who need to squat and bend over during use, causing difficulties in folding. Summary of the Invention

[0005] To improve the ease of folding of the walking aid while ensuring its safety and stability, this application provides a portable walking aid stroller that folds up simultaneously, using the following technical solution:

[0006] A portable walking aid stroller that folds up simultaneously includes an assistive device body, a folding assembly, and a flexible seat cushion.

[0007] The auxiliary device vehicle body is provided in two, and the two auxiliary device vehicle bodies are arranged side by side in the horizontal direction;

[0008] The auxiliary vehicle body includes a handlebar connecting rod, a swing connecting rod, and an adjusting block. The adjusting block is slidably fitted to the handlebar connecting rod, and the swing connecting rod is rotatably fitted to the adjusting block.

[0009] The synchronously folding portable walking aid has an unfolded state and a folded state. The handlebar connecting rod is equipped with a limit block. When the synchronously folding portable walking aid is in the unfolded state, the adjusting block is pressed against the limit block from top to bottom. When the synchronously folding portable walking aid changes from the unfolded state to the folded state, the adjusting block moves away from the limit block from bottom to top.

[0010] The folding assembly includes a folding rod, a first connecting rod, a second connecting rod, and a third connecting rod;

[0011] One end of the folding rod is rotatably engaged with the adjustment block of one of the auxiliary vehicle bodies, and the other end of the folding rod is rotatably engaged with the handlebar connecting rod of another auxiliary vehicle body.

[0012] The two ends of the first link are rotatably engaged with the folding rod and the limiting block, respectively. The two ends of the second link are rotatably connected to the handlebar connecting rod and the swing connecting rod, respectively. One end of the third link is rotatably engaged with the first link, and the other end of the third link is rotatably and slidably engaged with the second link.

[0013] The flexible seat cushion is mounted on two adjustment blocks on the two auxiliary vehicle bodies.

[0014] By adopting the above technical solution, when this utility model is in its unfolded state and the user needs to fold it, the flexible seat cushion can be folded to achieve the effect of folding the utility model. The folding of the flexible seat cushion will drive the adjusting block, which in turn drives the folding assembly to fold and close. At this time, the assistive device body is driven by the folding assembly, folding and gathering the assistive device body to achieve a folded state, thus achieving a one-button folding and closing effect. This utility model requires only one action to complete the folding and closing of the walking assistive device, making it more convenient and practical for the elderly or other people with lower limb mobility impairments.

[0015] Optionally, the second connecting rod is provided with a first transmission groove, which is a keyway extending along the length direction of the second connecting rod, and the third connecting rod is provided with a second transmission groove, which is a keyway extending along the length direction of the third connecting rod. The second transmission groove is movably connected by bolts and pins fixedly installed on the second connecting rod.

[0016] By adopting the above technical solution, the swing connecting rod and the handlebar connecting rod can be connected in a transmission manner, so that when the folding rod is folded, it can drive the swing connecting rod and the handlebar connecting rod to fold.

[0017] Optionally, the top of the handlebar connecting rod is provided with a handlebar grip, and the handlebar grip is provided with anti-slip texture.

[0018] By adopting the above technical solution, the handlebar not only maintains the stability of the user when using this utility model, but also prevents falls caused by the handlebar slipping.

[0019] Optionally, the handlebar grab handle can be slidably fitted onto the handlebar connecting rod via a handlebar lifting component.

[0020] By adopting the above technical solutions, the handlebars can not only accommodate users of various heights, but also further reduce the size of the auxiliary vehicle body, improving comfort and portability.

[0021] Optionally, the bottom of the handlebar connecting rod is provided with a first wheel, which is a swivel wheel.

[0022] By adopting the above technical solution, the walking aid can turn at multiple angles.

[0023] Optionally, the bottom of the swing connecting rod is provided with a second wheel, and the first wheel is the front wheel and the second wheel is the rear wheel. Both the first wheel and the second wheel have a hollow design.

[0024] By adopting the above technical solution, the walking aid can easily pass through obstacle roads, and the first and second wheels can have a small weight, which improves the portability of the walking aid while ensuring its steering stability.

[0025] Optionally, the two auxiliary vehicle bodies are also equipped with flexible backrests, both of which are foldable.

[0026] By adopting the above technical solutions, the flexible seat cushion and flexible backrest can not only provide a resting environment, but also do not affect the overall size of the walking aid, thus improving comfort and portability.

[0027] Optionally, the swing connecting rod includes a vehicle body connecting rod and a wheel connecting rod. The vehicle body connecting rod is rotatably connected to the adjusting block, and the wheel connecting rod is detachably installed on the vehicle body connecting rod. The other end of the wheel connecting rod is provided with a second wheel.

[0028] By adopting the above technical solution, the detachable installation facilitates long-distance transportation of the walking aid, thereby reducing transportation costs and improving economic efficiency.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. When this utility model is in the unfolded state, and the user needs to fold it, the flexible seat cushion can be folded to achieve the folding effect. Folding the flexible seat cushion will activate the adjusting block, which in turn will fold the folding assembly. At this time, the assistive device body is moved by the folding assembly, folding and gathering together to achieve a folded state, thus achieving a one-button folding and retraction effect. This utility model requires only one action to complete the folding and retraction of the walking assistive device, greatly improving convenience and practicality for the elderly or other people with lower limb mobility impairments.

[0031] 2. The flexible seat cushion and flexible backrest provide users with a resting environment without affecting the overall size of the walking aid, thus improving comfort and portability;

[0032] 3. The detachable installation facilitates long-distance transportation of the walking aid, thereby reducing transportation costs and improving economic efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall walking aid device in the embodiments of this application.

[0034] Figure 2 This is a rear view of the walking aid device in the embodiments of this application.

[0035] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0036] Figure 4 This is an exploded view of the handlebar connecting rod in an embodiment of this application.

[0037] Figure 5 This is an exploded view of the swing connecting rod in an embodiment of this application.

[0038] Figure 6 This is a side view of the walking aid device in the embodiment of this application.

[0039] Figure 7 This is a schematic diagram of the closing component in an embodiment of this application.

[0040] Figure 8 This is a first partial schematic diagram of the retracting component in an embodiment of this application.

[0041] Figure 9 This is a second partial schematic diagram of the retracting component in an embodiment of this application.

[0042] Figure 10 This is a front view of the walking aid device according to an embodiment of this application.

[0043] Explanation of reference numerals in the attached drawings: 1. Auxiliary body; 11. Handlebar connecting rod; 12. Swing connecting rod; 13. Adjusting block; 14. Limiting block; 15. Handlebar handlebar; 16. Handlebar lifting component; 17. Body connecting rod; 18. Wheel connecting rod; 19. Adjusting bolt; 111. First wheel; 112. Second wheel; 2. Collapsing assembly; 201. First transmission groove; 202. Second transmission groove; 21. Folding rod; 22. First connecting rod; 23. Second connecting rod; 24. Third connecting rod; 3. Flexible seat cushion; 31. Flexible backrest. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0045] Embodiment 1 of this application discloses a portable walking aid stroller that folds up synchronously. Figure 1The components include the auxiliary vehicle body 1, the folding assembly 2, and the flexible seat cushion 3;

[0046] Reference Figure 1 Two auxiliary motor bodies 1 are provided, arranged horizontally and mirror-image. Each auxiliary motor body 1 includes a handlebar connecting rod 11, a swing connecting rod 12, and an adjusting block 13. The adjusting block 13 is slidably fitted onto the handlebar connecting rod 11, and the swing connecting rod 12 is rotatably connected to the handlebar connecting rod 11 via the adjusting block 13. A limit block 14 is installed on the handlebar connecting rod 11 to limit the stroke of the adjusting block 13.

[0047] Specifically, this utility model has an unfolded state and a retracted state: when this utility model is in the unfolded state, the adjusting block 13 is pressed against the limiting block 14 from top to bottom; when this utility model changes from the unfolded state to the retracted state, the adjusting block 13 slides at the handlebar connecting rod 11 and moves away from the limiting block 14 from bottom to top.

[0048] Reference Figure 1 and Figure 3 The top of the handlebar connecting rod 11 is provided with a handlebar armrest 15. The handlebar armrest 15 is provided with anti-slip texture. The anti-slip texture increases the contact area between the handlebar armrest 15 and the user, so that the handlebar armrest 15 can not only maintain the stability of the user when using this utility model, but also prevent falls caused by the armrest slipping.

[0049] Reference Figure 4 The handlebar armrest 15 slides and engages with the handlebar connecting rod 11 via the handlebar lifting member 16. One end of the handlebar armrest 15 is provided with several threaded holes, which can be adapted to the handlebar lifting member 16. By locking the threaded holes at different positions through the handlebar lifting member 16, the handlebar armrest 15 can be raised and lowered. This allows the handlebar armrest 15 to not only accommodate users of various heights, but also further reduce the size of the auxiliary vehicle body 1, improving comfort and portability.

[0050] Reference Figure 5 The swing connecting rod 12 includes a body connecting rod 17 and a wheel connecting rod 18. The body connecting rod 17 is rotatably connected to the adjusting block 13, and the wheel connecting rod 18 is detachably mounted to the body connecting rod 17 via an adjusting bolt 19. A second wheel 112 is provided at the other end of the wheel connecting rod 18. When long-distance transportation is required, the body connecting rod 17 and the wheel connecting rod 18 can be detached by loosening the adjusting bolt 19. This allows for a smaller volume during express delivery and long-distance transportation, thereby reducing transportation costs and improving economic efficiency.

[0051] Reference Figure 6The handlebar connecting rod 11 has a first wheel 111 at its bottom, which is a swivel wheel. The swing connecting rod 12 has a second wheel 112 at its bottom. Both the first wheel 111 and the second wheel 112 have a hollow design, which reduces the weight of the wheels and improves portability. The first wheel 111 is the front wheel, and the second wheel 112 is the rear wheel. Both the first wheel 111 and the second wheel 112 are made of soft PVC. Soft PVC has good elasticity, which can effectively cushion vibrations transmitted from the ground. Moreover, soft PVC has a low production cost, which can effectively improve economic efficiency.

[0052] Reference Figure 7 and Figure 8 The folding assembly 2 includes a folding rod 21, a first connecting rod 22, a second connecting rod 23, and a third connecting rod 24. There are two folding rods 21 that are hinged together. The hinge design allows the two folding rods 21 to rotate around the hinge in a vertical plane. One end of the folding rod 21 is rotatably engaged with the adjusting block 13 of one of the assist vehicle bodies 1, and the other end of the folding rod 21 is rotatably engaged with the handlebar connecting rod 11 of the other assist vehicle body 1 so that the two assist vehicle bodies 1 can be moved closer together by the hinge rotation of the two folding rods 21, so that the portable walking aid trolley can be folded up from the unfolded state to the folded state.

[0053] Reference Figure 8 and Figure 9 Two first connecting rods 22 are mirror images of each other, each corresponding to one of the two folding rods 21. One end of each first connecting rod 22 is rotatably connected to the limiting block 14 by a bolt, and the other end is rotatably connected to the folding rod 21 by a bolt. Two second connecting rods 23 are mirror images of each other, each rotatably connected to the handlebar connecting rod 11 and the swing connecting rod 12, respectively. Each second connecting rod 23 has a first transmission groove 201, which is a keyway extending along the length of the second connecting rod 23.

[0054] Reference Figure 8 and Figure 9The third link 24 has two mirror images, and its irregular shape is designed to avoid the handlebar connecting rod 11 and the swing connecting rod 12 when the portable walking aid is simultaneously folded from the unfolded state. One end of the third link 24 is rotatably engaged with the first link 22 via bolts. The other end of the third link 24 has a second transmission groove 202, which is a keyway extending along the length of the third link 24. The first transmission groove 201 and the second transmission groove 202 are movably connected by bolts and pins fixed to the second link 23, allowing the third link 24 to rotate and slide within the second link 23. The first link 22 and the third link 24 are both made of aluminum alloy, which is lightweight while maintaining a certain rigidity, making it easy to carry. The second link 23, because it needs to withstand greater pressure during transmission, is made of stainless steel to ensure its stability during unfolding and folding.

[0055] Reference Figure 10 The flexible seat 3 is located between the two auxiliary vehicle bodies 1, and the two sides of the flexible seat 3 are respectively installed on the adjustment blocks 13 of the two auxiliary vehicle bodies 1, so that by lifting the flexible seat 3, the adjustment blocks 13 can slide upward away from the limiting block 14. The limiting block 14 drives the hinged folding rod 21 to close. The folding rod 21 is then connected by the rotation of the first link 22, the second link 23 and the third link 24 to close the walking aid vehicle body, so as to achieve the effect of closing the walking aid vehicle body with one button.

[0056] In addition, flexible backrests 31 are fixedly connected to the two auxiliary vehicle bodies 1, and the flexible backrests 31 are located on the top of the walking aid. Both the flexible backrests 31 and the flexible seat cushions 3 are foldable. The foldable flexible backrests 31 and the flexible seat cushions 3 are made of nylon fabric. The flexible backrests 31 and the flexible seat cushions 3 made of nylon fabric have the technical advantages of small size and light weight. They not only meet the requirements of folding and improve portability, but also increase the comfort of users when using the flexible backrests 31 and the flexible seat cushions 3.

[0057] The implementation principle of the synchronously folding portable walking aid stroller of this application is as follows: When the user needs to convert the walking aid to the folded state, he only needs to fold the flexible seat 3. During the folding process, the flexible seat 3 will drive the adjusting block 13 to move away from the limiting block 14 from bottom to top. The sliding of the adjusting block 13 will drive the hinge of the folding rod 21 to retract. The hinge of the folding rod 21 will drive the rotational connection between the second connecting rod 23 and the handle connecting rod and the wheel connecting rod 18. Furthermore, the mutual rotational connection between the first link 22, the second link 23, and the third link 24 drives the folding and retraction of the two auxiliary vehicle bodies 1. At this time, the flexible backrest 31 is also folded and retracted by the retraction of the two auxiliary vehicle bodies 1, finally making the entire walking aid reach a folded and retracted state. If you want to further reduce the size of this utility model for convenient express delivery, you can loosen the adjusting bolt 19 and disassemble the wheel connecting rod 18. In addition, by adjusting the fitting position of the handlebar lifting component 16 to the threaded hole at the handlebar armrest 15, the brake lever is lowered to the lowest point, thereby further reducing the folding volume.

[0058] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable walking aid stroller that folds up synchronously, characterized in that: Includes the auxiliary vehicle body (1), the folding assembly (2), and the flexible seat cushion (3); There are two auxiliary device bodies (1), and the two auxiliary device bodies (1) are arranged side by side in the horizontal direction; The auxiliary vehicle body (1) includes a handlebar connecting rod (11), a swing connecting rod (12), and an adjusting block (13). The adjusting block (13) is slidably fitted to the handlebar connecting rod (11), and the swing connecting rod (12) is rotatably fitted to the adjusting block (13). The synchronously collapsible portable walking aid has an unfolded state and a folded state. The handlebar connecting rod (11) is equipped with a limiting block (14). When the synchronously collapsible portable walking aid is in the unfolded state, the adjusting block (13) is tightly fitted against the limiting block (14) from top to bottom. When the synchronously collapsible portable walking aid changes from the unfolded state to the folded state, the adjusting block (13) moves away from the limiting block (14) from bottom to top. The folding assembly (2) includes a folding rod (21), a first connecting rod (22), a second connecting rod (23), and a third connecting rod (24); One end of the folding rod (21) is rotatably engaged with the adjusting block (13) of one of the auxiliary vehicle bodies (1), and the other end of the folding rod (21) is rotatably engaged with the handlebar connecting rod (11) of the other auxiliary vehicle body (1). The two ends of the first link (22) are rotatably connected to the folding rod (21) and the limiting block (14) respectively. The two ends of the second link (23) are rotatably connected to the handlebar connecting rod (11) and the swing connecting rod (12) respectively. One end of the third link (24) is rotatably connected to the first link (22), and the other end of the third link (24) is rotatably and slidably connected to the second link (23). The flexible seat cushion (3) is installed on both sides of the two auxiliary vehicle bodies (1) adjustment blocks (13).

2. The portable walking aid stroller that folds up synchronously according to claim 1, characterized in that: The second connecting rod (23) is provided with a first transmission groove (201), which is a keyway extending along the length direction of the second connecting rod (23). The third connecting rod (24) is provided with a second transmission groove (202), which is a keyway extending along the length direction of the third connecting rod (24). The second transmission groove (202) is movably connected by bolts and pins fixedly installed on the second connecting rod (23).

3. The portable walking aid stroller that folds up synchronously according to claim 1, characterized in that: The top of the handlebar connecting rod (11) is provided with a handlebar armrest (15), and the handlebar armrest (15) is provided with anti-slip texture.

4. A portable walking aid stroller that folds up synchronously according to claim 3, characterized in that: The handlebar armrest (15) is slidably fitted to the handlebar connecting rod (11) via the handlebar lifting component (16).

5. A portable walking aid stroller that folds up synchronously according to claim 1, characterized in that: The bottom of the handlebar connecting rod (11) is provided with a first wheel (111), and the first wheel (111) is a swivel wheel.

6. A portable walking aid stroller that folds up synchronously according to claim 5, characterized in that: The bottom of the swing connecting rod (12) is provided with a second wheel (112), and the first wheel (111) is the front wheel and the second wheel (112) is the rear wheel. Both the first wheel (111) and the second wheel (112) are hollow designs.

7. A portable walking aid stroller that folds up synchronously according to claim 1, characterized in that: The two auxiliary vehicle bodies (1) are also equipped with flexible backrests (31), both of which are foldable.

8. A portable walking aid stroller that folds up synchronously according to claim 1, characterized in that: The swing connecting rod (12) includes a vehicle body connecting rod (17) and a wheel connecting rod (18). The vehicle body connecting rod (17) is rotatably connected to the adjusting block (13). The wheel connecting rod (18) is detachably installed on the vehicle body connecting rod (17). The other end of the wheel connecting rod (18) is provided with a second wheel (112).

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