Steadily folded rollator

By designing a rotating folding structure of the double-folding frame and the center of the rotating shaft in the driving assistance vehicle, the stability problem of the driving assistance vehicle is solved, and a more stable, safe and convenient user experience is achieved.

CN222955662UActive Publication Date: 2025-06-10ZHONGSHAN QUNN MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202421353093.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-06-10
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

There are stability problems when driving on the market when unfolding, especially when driving with single-tube folding, the left and right frames often sway back and forth, affecting the safety of use.

Method used

A driving vehicle including a left frame, a right frame, a first folding frame and a second folding frame is designed. By setting up a double folding frame and rotating folding design with the help of the center of the shaft, a fast and simple folding and deployment operation is achieved, thereby enhancing stability.

Benefits of technology

The design improves the stability and safety of the driving assist, avoids swaying, and is easy to carry and store, enhancing the firmness and durability of the overall structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a stable folding rollator which comprises a left frame, a right frame, a first folding frame and a second folding frame, the left frame and the right frame are mutually symmetrical and oppositely arranged, and the first folding frame and the second folding frame are arranged between the left frame and the right frame and can be rotationally folded along the center of a rotating shaft. The first folding frame is connected with the second folding frame through the rotating shaft, one end of the first folding frame is connected with the left frame through a first connecting rod mechanism, the other end of the first folding frame is hinged to the right frame, one end of the second folding frame is connected with the right frame through a second connecting rod mechanism, and the other end of the second folding frame is hinged to the left frame. Through the arrangement of the double folding frames and the design that the first folding frame and the second folding frame are rotated and folded by means of the center of the rotating shaft, rapid and simple folding and unfolding operation is achieved, a user can conveniently carry and store, shaking is avoided, and the stability is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of walking aids, and particularly relates to a walking aid with stable folding. Background Art

[0002] Most of the walking aids on the market adopt an X-shaped cross-tube design to meet the folding requirements. This design can make the body of the walking aid more compact during folding, facilitating carrying and storage. However, this design has certain stability problems when unfolded. Especially for the walking aid with single-tube folding, during use, the left and right frames often swing back and forth, bringing certain inconvenience and potential safety hazards to the normal use of the user.

[0003] Therefore, it is urgent to redesign and optimize the folding structure of the walking aid to improve its stability and safety. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a walking aid with stable folding and unfolding, which is not easy to shake.

[0005] A walking aid with stable folding includes a left frame, a right frame, a first folding frame and a second folding frame. The left frame and the right frame are symmetrical and oppositely arranged. The first folding frame and the second folding frame are arranged between the left frame and the right frame and can be rotated and folded along the center of the rotating shaft. The first folding frame and the second folding frame are connected by the rotating shaft. One end of the first folding frame is connected to the left frame through a first link mechanism, and the other end is hinged to the right frame. One end of the second folding frame is connected to the right frame through a second link mechanism, and the other end is hinged to the left frame.

[0006] The walking aid with stable folding as described above, the first folding frame includes a first cross bar that can abut against the left frame and a first hinge rod fixed on the first cross bar and hinged to the right frame; the second folding frame includes a second cross bar that can abut against the right frame and a second hinge rod fixed on the second cross bar and hinged to the left frame;

[0007] The rotating shaft passes through the middle parts of the first hinge rod and the second hinge rod and pivotally connects the first hinge rod and the second hinge rod.

[0008] The walking aid with stable folding as described above, both the first cross bar and the second cross bar are provided with limit blocks, and the left frame and the right frame are provided with limit grooves corresponding to the limit blocks, and the limit blocks and the limit grooves can be matched and clamped with each other.

[0009] The foldable and stable walking aid as described above, wherein the right frame includes an integrally formed right front frame and a right rear frame, and the first hinge rod is provided with a first front rod and a first rear rod corresponding to the right front frame and the right rear frame. The first front rod is hinged to the right front frame, and the first rear rod is hinged to the right rear frame.

[0010] The foldable and stable walking aid as described above, wherein the left frame includes an integrally formed left front frame and a left rear frame, and the second hinge rod is provided with a second front rod and a second rear rod corresponding to the left front frame and the left rear frame. The second front rod is hinged to the left front frame, and the second rear rod is hinged to the left rear frame.

[0011] The foldable and stable walking aid as described above, wherein the first link mechanism includes a first link having one end hinged to the left frame and the other end hinged to the first folding frame, and a first hinge shaft passing through the first folding frame. A left hinge seat is provided on the left frame, and the first link is hinged to the left hinge seat.

[0012] The foldable and stable walking aid as described above, wherein the second link mechanism includes a second link having one end hinged to the right frame and the other end hinged to the second folding frame, and a second hinge shaft passing through the second folding frame. A right hinge seat is provided on the right frame, and the second link is hinged to the right hinge seat.

[0013] The foldable and stable walking aid as described above, wherein a hook for hanging items is further provided on the cross bar.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] The present application provides a foldable and stable walking aid. By providing a double folding frame and a folding design in which the first folding frame and the second folding frame rotate around the center of the rotating shaft, rapid and simple folding and unfolding operations are achieved, which is convenient for users to carry and store, and does not shake, improving stability. In addition, the first folding frame and the second folding frame are connected by a rotating shaft, ensuring stable folding connectivity and enhancing the firmness and durability of the overall structure. The first folding frame and the second folding frame are respectively connected to the left and right frames through link mechanisms, making the walking aid more stable during folding and unfolding. This design not only considers the convenience and stability of use, but also takes into account the convenience of folding and space saving, providing users with a more practical and comfortable walking aid usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments.

[0017] Figure 1 is a three-dimensional schematic diagram of a foldable and stable walking aid of the present application;

[0018] Figure 2 It is a schematic diagram of the folded state of a walking aid with stable folding according to the present application;

[0019] Figure 3 It is an exploded view of a walking aid with stable folding according to the present application. Specific embodiments

[0020] The present utility model will be further described below with reference to the accompanying drawings:

[0021] As Figures 1-3 shown, a walking aid with stable folding includes a left frame 1, a right frame 2, a first folding frame 3, a second folding frame 4, a rotating shaft 5, a first link mechanism 6, a second link mechanism 7, a first cross bar 30, a first articulated rod 31, a second cross bar 40, a second articulated rod 41, a limit block 8, a limit groove 9, a right front frame 21, a right rear frame 22, a first front rod 311, a first rear rod 312, a left front frame 11, a left rear frame 12, a second front rod 411, a second rear rod 412, a first link 61, a first articulated shaft 62, a left articulated seat 13, a right articulated seat 23, a second link 71, a second articulated shaft 72, and a hook 10.

[0022] A walking aid with stable folding includes a left frame 1, a right frame 2, a first folding frame 3 and a second folding frame 4. The left frame 1 and the right frame 2 are symmetric and oppositely arranged. The first folding frame 3 and the second folding frame 4 are arranged between the left frame 1 and the right frame 2 and can be rotationally folded around the center of the rotating shaft 5. The first folding frame 3 and the second folding frame 4 are connected by the rotating shaft 5. One end of the first folding frame 3 is connected to the left frame 1 through the first link mechanism 6, and the other end is articulated to the right frame 2. One end of the second folding frame 4 is connected to the right frame 2 through the second link mechanism 7, and the other end is articulated to the left frame 1. By setting a double folding frame and designing that the first folding frame and the second folding frame are rotationally folded around the center of the rotating shaft, rapid and simple folding and unfolding operations are realized, which is convenient for users to carry and store, and will not shake, improving stability. In addition, the first folding frame and the second folding frame are connected by the rotating shaft, ensuring stable folding connectivity and enhancing the firmness and durability of the overall structure. The first folding frame and the second folding frame are respectively connected to the left and right frames through link mechanisms, making the walking aid more stable when folding and unfolding. This design not only considers the convenience and stability of use, but also takes into account the convenience of folding and space saving, providing users with a more practical and comfortable walking aid using experience.

[0023] Preferably, the first folding frame 3 includes a first cross bar 30 that can abut against the left frame 1 and a first hinge rod 31 fixed to the first cross bar 30 and hinged to the right frame 2; the second folding frame 4 includes a second cross bar 40 that can abut against the right frame 2 and a second hinge rod 41 fixed to the second cross bar 40 and hinged to the left frame 1;

[0024] The rotating shaft 5 passes through the middle parts of the first hinge rod 31 and the second hinge rod 41 and pivotally connects the first hinge rod 31 and the second hinge rod 41. The first cross bar 30 and the second cross bar 40 can tightly abut against the corresponding frames. At the same time, they are connected to the other side through the hinge rod 31 and the hinge rod 41, making the folding and unfolding movements of the folding frame smoother and more reliable. The setting of the rotating shaft 5 effectively supports and connects the first folding frame and the second folding frame, ensuring their stability and durability during use.

[0025] Preferably, limit blocks 8 are provided on both the first cross bar 30 and the second cross bar 40, and limit grooves 9 are provided on the left frame 1 and the right frame 2 corresponding to the limit blocks 8. The limit blocks 8 and the limit grooves 9 can be matched and engaged with each other, which can ensure that the first folding frame and the second folding frame are positioned according to the predetermined positions and angles during the folding and unfolding processes, improving the stability and reliability of the folding frame. Through the mutual engagement of the limit blocks 8 and the limit grooves 9, the folding frame can be firmly locked in the correct position after unfolding, and can be smoothly folded to the specified state during folding, avoiding unnecessary swaying or dislocation.

[0026] Preferably, the right frame 2 includes an integrally formed right front frame 21 and a right rear frame 22. The first hinge rod 31 is provided with a first front rod 311 and a first rear rod 312 corresponding to the right front frame 21 and the right rear frame 22. The first front rod 311 is hinged to the right front frame 21, and the first rear rod 312 is hinged to the right rear frame 22, enabling the first hinge rod 31 to be firmly connected to the front and rear parts of the right frame, contributing to supporting the stability of the entire structure and performing effective rotation and folding operations. The hinged connection between the right front frame 21 and the right rear frame 22 enables the frame to rotate and adjust flexibly. At the same time, through the connection of the first hinge rod 31, the overall structure is more solid and durable.

[0027] Preferably, the left frame 1 includes an integrally formed left front frame 11 and a left rear frame 12. The second articulated rod 41 is provided with a second front rod 411 and a second rear rod 412 corresponding to the left front frame 11 and the left rear frame 12. The second front rod 411 is articulated with the left front frame 11, and the second rear rod 412 is articulated with the left rear frame 12, so that the second articulated rod 41 can be stably connected to the front and rear parts of the left frame, which helps to support the stability of the whole structure and perform effective rotation and folding operations. The articulated connection between the left front frame 11 and the left rear frame 12 enables the frame to rotate and adjust flexibly. At the same time, through the connection of the second articulated rod 41, the overall structure is more solid and durable.

[0028] Preferably, the first link mechanism 6 includes a first link 61 with one end articulated to the left frame 1 and the other end articulated to the first folding frame 3, and a first articulated shaft 62 passing through the first folding frame 3. A left articulated seat 13 is provided on the left frame 1, and the first link 61 is articulated with the left articulated seat 13.

[0029] Preferably, the second link mechanism 7 includes a second link 71 with one end articulated to the right frame 2 and the other end articulated to the second folding frame 4, and a second articulated shaft 72 passing through the second folding frame 4. A right articulated seat 23 is provided on the right frame 2, and the second link 71 is articulated with the right articulated seat 23.

[0030] Preferably, a hook 10 for hanging items is further provided on the crossbar. This design can facilitate users to hang small items such as bags and rain gear, increasing the practicality and convenience of the walking aid.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foldable and stable rollator, characterized in that: The invention comprises a left frame (1), a right frame (2), a first folding frame (3) and a second folding frame (4); the left frame (1) and the right frame (2) are symmetrical and arranged opposite to each other; the first folding frame (3) and the second folding frame (4) are arranged between the left frame (1) and the right frame (2) and can be rotated and folded along the center of a rotating shaft (5); the first folding frame (3) and the second folding frame (4) are connected via the rotating shaft (5); one end of the first folding frame (3) is connected to the left frame (1) via a first connecting rod mechanism (6) and the other end is hinged to the right frame (2); one end of the second folding frame (4) is connected to the right frame (2) via a second connecting rod mechanism (7) and the other end is hinged to the left frame (1).

2. The foldable and stable rollator according to claim 1, characterized in that: The first folding frame (3) comprises a first cross bar (30) that can abut against the left frame (1) and a first hinged rod (31) fixed to the first cross bar (30) and hinged to the right frame (2); the second folding frame (4) comprises a second cross bar (40) that can abut against the right frame (2) and a second hinged rod (41) fixed to the second cross bar (40) and hinged to the left frame (1); The rotating shaft (5) passes through the middle of the first hinge rod (31) and the second hinge rod (41), and is pivotally connected to the first hinge rod (31) and the second hinge rod (41).

3. The foldable and stable rollator according to claim 2, characterized in that: The first cross bar (30) and the second cross bar (40) are both provided with a limit block (8); the left frame (1) and the right frame (2) are provided with a limit groove (9) corresponding to the limit block (8); the limit block (8) and the limit groove (9) can be matched and engaged with each other.

4. The foldable and stable rollator according to claim 2, characterized in that: The right vehicle frame (2) comprises an integrally formed right front frame (21) and a right rear frame (22); the first hinged rod (31) is provided with a first front rod (311) and a first rear rod (312) corresponding to the right front frame (21) and the right rear frame (22); the first front rod (311) is hinged to the right front frame (21), and the first rear rod (312) is hinged to the right rear frame (22).

5. The foldable and stable rollator according to claim 2, characterized in that: The left vehicle frame (1) comprises an integrally formed left front frame (11) and a left rear frame (12); the second hinged rod (41) is provided with a second front rod (411) and a second rear rod (412) corresponding to the left front frame (11) and the left rear frame (12); the second front rod (411) is hinged to the left front frame (11), and the second rear rod (412) is hinged to the left rear frame (12).

6. The foldable and stable rollator according to claim 1, characterized in that: The first connecting rod mechanism (6) comprises a first connecting rod (61) having one end hinged to the left frame (1) and the other end hinged to the first folding frame (3), and a first hinge shaft (62) passing through the first folding frame (3); a left hinge seat (13) is provided on the left frame (1), and the first connecting rod (61) is hinged to the left hinge seat (13).

7. The foldable and stable rollator according to claim 1, characterized in that: The second connecting rod mechanism (7) comprises a second connecting rod (71) having one end hinged to the right frame (2) and the other end hinged to the second folding frame (4), and a second hinge shaft (72) passing through the second folding frame (4); a right hinge seat (23) is provided on the right frame (2), and the second connecting rod (71) is hinged to the right hinge seat (23).

8. The foldable and stable rollator according to claim 3, characterized in that: The crossbar is also provided with a hook (10) for hanging articles.