A three-dimensional folding shopping cart walker

Abstract

The application discloses a three-dimensional folding shopping cart walking aid, which comprises a first walking aid support, a second walking aid support and a three-dimensional folding support, the three-dimensional folding support is arranged between the first walking aid support and the second walking aid support, is used for connecting the first walking aid support and the second walking aid support into an integrated structure, and realizes linkage folding and unfolding between the first walking aid support and the second walking aid support; the three-dimensional folding support comprises a pulling device, an upper movable device and a lower movable device, the pulling device, the upper movable device and the lower movable device are sequentially and triangularly connected, the pulling device is connected with the upper movable device and the lower movable device, and the upper movable device is connected with the lower movable device to form a triangular linkage structure; the pulling device is used for driving the upper movable device and the lower movable device to link under the action of external force.

Description

Technical Field

[0001] This invention belongs to the field of assistive walking equipment technology, specifically relating to a three-dimensional folding shopping cart assistive device that integrates walking support, shopping storage and three-dimensional folding functions. Background Technology

[0002] With the deepening of population aging and the continuous growth of rehabilitation assistance needs, walking aids, as an important assistive walking device, are widely used by the elderly, people with lower limb mobility impairments, and postoperative rehabilitation patients. Traditional walking aids are mainly used to provide body support and walking assistance. Their structure is usually based on a fixed frame or a simple folding structure. Although they can meet basic support needs to a certain extent, they still have shortcomings in terms of functional integration and portability.

[0003] Most existing walking aids employ a planar folding structure, with folding methods typically limited to a single direction, such as left-right or front-back folding. This makes multi-directional coordinated folding difficult, resulting in a large space occupied even after folding, which is inconvenient for carrying and storage, especially when shopping or using public transportation. Furthermore, because the folding mechanisms are mostly simple linkage structures, the inter-component linkage is poor, leading to asynchronous or jamming issues during folding or unfolding, affecting user experience and structural reliability.

[0004] Furthermore, existing walking aids also have certain shortcomings in terms of structural stability. Traditional structures mostly rely on support rods in one direction, lacking an effective spatial support system. This makes them prone to swaying or tilting during use, especially when carrying items or on uneven ground, where stability is poor and certain safety hazards exist. At the same time, although some walking aids have added storage functions, they are usually designed as add-ons, not tightly integrated with the main structure, which affects the overall aesthetics and may also interfere with folding performance.

[0005] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0006] To address the aforementioned problems in the existing technology, the purpose of this invention is to provide a three-dimensional folding shopping cart assistive device that enables multi-directional linkage folding, reduces storage volume, and improves structural stability and ease of use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a three-dimensional folding shopping cart walking aid, comprising a first walking aid bracket, a second walking aid bracket, and a three-dimensional folding bracket, wherein the three-dimensional folding bracket is disposed between the first walking aid bracket and the second walking aid bracket, for connecting the first walking aid bracket and the second walking aid bracket into an integral structure, and realizing the linkage folding and unfolding between the two.

[0008] The three-dimensional folding bracket includes a pulling device, an upper movable device, and a lower movable device. The pulling device, the upper movable device, and the lower movable device are connected in a triangular sequence. The pulling device is connected to the upper movable device and the lower movable device respectively. The upper movable device and the lower movable device are connected to each other to form a triangular linkage structure.

[0009] The pulling device is used to drive the upper movable device and the lower movable device to move together under the action of external force, thereby driving the first walking aid bracket and the second walking aid bracket to move synchronously in the horizontal, vertical and longitudinal directions, so as to realize the three-dimensional folding and unfolding of the overall structure.

[0010] The present invention has the following main advantages: Compared with the prior art, the present invention, by setting the pulling device, the upper movable device, and the lower movable device to form a triangular linkage structure, enables each component to move synchronously in the horizontal, vertical, and longitudinal directions during the folding process, thereby achieving three-dimensional folding of the overall structure. Compared with the traditional planar folding structure, the folded volume is smaller and the structure is more compact, making it easier to carry and store. Through the hinged cooperation of multiple sets of connecting rods and horizontal support rods, the components can generate coordinated linkage during the movement, avoiding jamming or asynchronous phenomena, thereby improving the smoothness and reliability of the overall folding and unfolding process. By setting vertical support rods and diagonal support rods to form a spatial triangular support system, the upper movable device, the lower movable device, and the side supports form a three-dimensional support relationship, thereby effectively improving the stability, anti-sway ability, and load-bearing capacity of the overall structure. Load-bearing capacity; during folding and unfolding, the upper and lower structures move synchronously through a linkage mechanism, avoiding structural instability caused by partial folding or unfolding, thereby improving safety during use; at the same time, the first and second walker brackets, together with the front and rear wheel structure, can provide stable walking support for users and can also be used to carry items, meeting the dual needs of walking assistance and shopping, thus improving overall practicality; in addition, by setting a soft backrest between the first and second bracket handles, users can obtain back support during use, thereby improving comfort, and the soft backrest can be folded and stored with the structure without affecting the overall folding performance; the overall structure is mainly composed of connecting rods and support rods, and most of the components are connected by hinges, which makes the structure simple, easy to process, manufacture and assemble, and also facilitates later maintenance and replacement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0013] Figure 3 This is a schematic diagram of the connection structure of the three-dimensional folding bracket, the first mounting crossbar, the second mounting crossbar, the first crossbar connecting frame, the second crossbar connecting frame, the third crossbar connecting frame, and the fourth crossbar connecting frame of the present invention.

[0014] Figure 4 This is an exploded structural diagram of the three-dimensional folding bracket, the first mounting crossbar, the second mounting crossbar, the first crossbar connecting frame, the second crossbar connecting frame, the third crossbar connecting frame, and the fourth crossbar connecting frame of the present invention.

[0015] Figure 5 This is a schematic diagram of the three-dimensional folding bracket structure of the present invention.

[0016] Figure 6 This is an exploded view of the three-dimensional folding bracket of the present invention.

[0017] Figure 7 This is a schematic diagram of the pulling device structure of the present invention.

[0018] Figure 8 This is a schematic diagram of the upper movable device structure of the present invention.

[0019] Figure 9 This is a schematic diagram of the lower movable device structure of the present invention.

[0020] Figure 10 This is a schematic diagram of the folded and unfolded practical states of the present invention.

[0021] Reference numerals: First walking aid bracket 10; Second walking aid bracket 20; Three-dimensional folding bracket 30; Pulling device 31; Upper movable device 32; Lower movable device 33; First mounting crossbar 11; Second mounting crossbar 21; First connecting rod 311; Second connecting rod 312; Third connecting rod 313; First crossbar connecting frame 12; Second crossbar connecting frame 22; First upper transverse support rod 321; Second upper transverse support rod 322; Third crossbar connecting frame 13; Fourth crossbar connecting frame 23; First lower transverse support rod 331; Second lower transverse support rod 332; Vertical support rod 34; First diagonal support rod 35; Second diagonal support rod 36; First pull rod connection Position 111; Second pull rod connection position 211; First pull rod connection slot 314; Second pull rod connection slot 315; Third pull rod connection slot 316; Third pull rod connection position 323; First upper support slot 324; Second upper support slot 325; First lower support slot 333; Second lower support slot 334; First vertical direct slot 326; Second vertical direct slot 335; First diagonal rod slot 327; Second diagonal rod slot 328; First front rod bracket 14; First rear support leg 15; First bracket handle 16; First front wheel 17; First rear wheel 18; Second front rod bracket 24; Second rear support leg 25; Second bracket handle 26; Second front wheel 27; Second rear wheel 28; Soft backrest 40. Detailed Implementation

[0022] like Figures 1 to 10 As shown, a three-dimensional folding shopping cart walker includes a first walker bracket 10, a second walker bracket 20, and a three-dimensional folding bracket 30. The three-dimensional folding bracket 30 is disposed between the first walker bracket 10 and the second walker bracket 20, and is used to connect the first walker bracket 10 and the second walker bracket 20 into an integrated structure, and realize the linkage folding and unfolding between the two.

[0023] In practical implementation, the three-dimensional folding support 30 includes a pulling device 31, an upper movable device 32, and a lower movable device 33. These three devices are sequentially connected in a triangular formation, forming a stable linkage support structure. The pulling device 31 is located at the upper front of the three-dimensional folding support 30, allowing the user to apply external force to drive the overall folding or unfolding action. The upper movable device 32 is located in the upper region of the three-dimensional folding support 30, and the lower movable device 33 is located in the lower region. The pulling device 31 is connected to both the upper movable device 32 and the lower movable device 33, which are also interconnected, forming a triangular linkage structure. Under external force, the three components achieve force transmission and motion coordination through this triangular structure, creating a stable and synchronous linkage relationship between the parts. In practical operation, when the user applies a pulling force to the pulling device 31, the pulling device 31 causes the upper movable device 32 to shift, thereby driving the upper structures of the first walker bracket 10 and the second walker bracket 20 to fold inward. Simultaneously, the pulling device 31, through the lower movable device 33, causes the lower structure to move inward synchronously, bringing the bottom support structures closer together. Because the pulling device 31, the upper movable device 32, and the lower movable device 33 form a triangular linkage relationship, they can simultaneously generate coordinated movements in the horizontal, vertical, and longitudinal directions during folding, thus achieving three-dimensional folding of the overall structure. This results in a smaller, more compact storage state for the walker after folding. In the unfolded state, the triangular linkage structure returns to its initial position through the rotational cooperation of each connecting part, allowing the first walker bracket 10 and the second walker bracket 20 to unfold stably and maintain good support strength and operational stability.

[0024] In practical implementation, the lower side of the first walking aid bracket 10 is provided with a first lower connecting part 13, and the lower side of the second walking aid bracket 20 is provided with a second lower connecting part 23. The first lower connecting part 13 and the second lower connecting part 23 are respectively used to connect and support the lower structure. A first lower connecting rod 331 is connected between the lower movable device 33 and the first lower connecting part 13, a second lower connecting rod 332 is connected between the lower movable device 33 and the second lower connecting part 23, and a third lower connecting rod 333 is connected between the lower movable device 33 and the pulling device 31. The first lower connecting rod 331, the second lower connecting rod 332, and the third lower connecting rod 333 are rotatably connected to the lower movable device 33 and the corresponding connecting parts, so that the angle of each connecting rod can change during the movement, thereby ensuring the smoothness of the linkage process. With the above-described structure, the pulling device 31 transmits motion to the lower movable device 33 via the third lower connecting rod 333, and transmits motion to the first lower connecting part 13 and the second lower connecting part 23 via the first lower connecting rod 331 and the second lower connecting rod 332, respectively, thereby driving the lower structures of the first walking aid bracket 10 and the second walking aid bracket 20 to move synchronously; at the same time, the lower movable device 33 participates in the overall linkage, causing the lower structure to undergo coordinated changes.

[0025] In practical implementation, a first crossbar connecting frame 12 is provided at the front end of the first mounting crossbar 11, and a second crossbar connecting frame 22 is provided at the front end of the second mounting crossbar 21. The first crossbar connecting frame 12 and the second crossbar connecting frame 22 are respectively used to connect and support the rear structure. A first upper transverse support rod 321 is connected between the upper movable device 32 and the first crossbar connecting frame 12, and a second upper transverse support rod 322 is connected between the upper movable device 32 and the second crossbar connecting frame 22. The first upper transverse support rod 321 and the second upper transverse support rod 322 are rotatably connected to the upper movable device 32 and the corresponding connecting parts, so that the angle of each upper transverse support rod can change during the movement, thereby ensuring the smoothness of the linkage process. With the above-described structure, the upper movable device 32 transmits motion to the first horizontal support frame 12 and the second horizontal support frame 22 through the first upper horizontal support rod 321 and the second upper horizontal support rod 322 respectively, thereby driving the rear upper structure of the first walking aid bracket 10 and the second walking aid bracket 20 to move synchronously and participate in the overall linkage, so that the upper structure produces coordinated changes.

[0026] In practical implementation, a third crossbar connecting frame 13 is provided on the lower side of the first walking aid bracket 10, and a fourth crossbar connecting frame 23 is provided on the lower side of the second walking aid bracket 20. The third crossbar connecting frame 13 and the fourth crossbar connecting frame 23 are used to connect and support the lower structure, respectively. A first lower transverse support rod 331 is connected between the lower movable device 33 and the third crossbar connecting frame 13, and a second lower transverse support rod 332 is connected between the lower movable device 33 and the fourth crossbar connecting frame 23. The first lower transverse support rod 331 and the second lower transverse support rod 332 are rotatably connected to the lower movable device 33 and the corresponding connecting parts, so that the angle of each lower transverse support rod can change during the movement, thereby ensuring the smoothness of the linkage process. With the above-mentioned structural configuration, the lower movable device 33 transmits motion to the third crossbar connecting frame 13 and the fourth crossbar connecting frame 23 through the first lower transverse support rod 331 and the second lower transverse support rod 332, respectively, thereby driving the lower structure of the first walking aid bracket 10 and the second walking aid bracket 20 to move synchronously and participate in the overall linkage, so that the lower structure produces coordinated changes.

[0027] In practical implementation, a vertical support rod 34 connects the upper movable device 32 and the lower movable device 33; a first oblique support rod 35 connects the upper movable device 32 and the third horizontal bar connecting frame 13; and a second oblique support rod 36 connects the upper movable device 32 and the fourth horizontal bar connecting frame 23. The vertical support rod 34, the first oblique support rod 35, and the second oblique support rod 36 are rotatably connected to the upper movable device 32, the lower movable device 33, and their corresponding connecting parts, respectively, so that each support rod can change angle during movement, thereby ensuring the stability and smooth movement of the overall linkage structure. Through the above structural arrangement, the upper movable device 32 and the lower movable device 33 form an upper-lower linkage relationship through the vertical support rod 34, while the first oblique support rod 35 and the second oblique support rod 36 form oblique support connections with the third horizontal bar connecting frame 13 and the fourth horizontal bar connecting frame 23, respectively, thus forming a spatial triangular support structure, giving the overall structure good stability and synergy during folding and unfolding.

[0028] In specific implementation, the first mounting crossbar 11 has a first pull rod connecting position 111 in the middle, and the second mounting crossbar 21 has a second pull rod connecting position 211 in the middle. One end of the pulling device 31 has a first pull rod connecting groove 314, and the other end of the pulling device 31 has a second pull rod connecting groove 315. One end of the first connecting pull rod 311 is set on the first pull rod connecting position 111 and is hinged to it by fasteners, and the other end is set in the first pull rod connecting groove 314 and is hinged to it by fasteners. One end of the second connecting pull rod 312 is set on the second pull rod connecting position 211 and is hinged to it by fasteners, and the other end is set in the second pull rod connecting groove 315 and is hinged to it by fasteners. With the above structural configuration, the first connecting rod 311 and the second connecting rod 312 respectively form a stable hinged connection with the pulling device 31 through the corresponding rod connecting position and rod connecting groove, so that the pulling device 31 can drive each connecting rod to swing during the movement, thereby realizing the effective transmission of motion and ensuring the reliability and smoothness of the overall linkage structure.

[0029] In specific implementation, a third pull rod connecting groove 316 is provided between the first pull rod connecting groove 314 and the second pull rod connecting groove 315, and a third pull rod connecting position 323 is provided at the upper end of the upper movable device 32. One end of the third connecting pull rod 313 is disposed in the third pull rod connecting groove 316 and is hingedly connected by fasteners, and the other end is disposed on the third pull rod connecting position 323 and is hingedly connected by fasteners. Through the above structural arrangement, the third connecting pull rod 313 is connected to the pulling device 31 through the third pull rod connecting groove 316 and forms a hinged connection relationship with the upper movable device 32, so that the pulling device 31 can transmit motion to the upper movable device 32 during movement, thereby realizing the linkage change of the upper structure.

[0030] In practical implementation, the upper movable device 32 has a first upper support groove 324 on one side of its upper end. One end of the first upper transverse support rod 321 is connected to the first upper support groove 324 and hinged by fasteners, while the other end is connected to the first crossbar connecting frame 12 and hinged by fasteners. The other side of the upper movable device 32 has a second upper support groove 325. One end of the second upper transverse support rod 322 is connected to the second upper support groove 325 and hinged by fasteners, while the other end is connected to the second crossbar connecting frame 22 and hinged by fasteners. Through the above structural arrangement, the first upper transverse support rod 321 and the second upper transverse support rod 322 are respectively hinged to the upper movable device 32 and the two side crossbar connecting frames, so that the upper movable device 32 can drive the two side structures to move synchronously during the movement, thereby improving the stability and coordination of the overall structure.

[0031] In practical implementation, the lower movable device 33 has a first lower support groove 333 on one side. One end of the first lower transverse support rod 331 is connected to the first lower support groove 333 and hinged by fasteners, while the other end is connected to the third crossbar connecting frame 13 and hinged by fasteners. The other side of the lower movable device 33 has a second lower support groove 334. One end of the second lower transverse support rod 332 is connected to the second lower support groove 334 and hinged by fasteners, while the other end is connected to the fourth crossbar connecting frame 23 and hinged by fasteners. Through the above structural arrangement, the first lower transverse support rod 331 and the second lower transverse support rod 332 are respectively hinged to the lower movable device 33 and the two side crossbar connecting frames, so that the lower movable device 33 can drive the lower structure to move synchronously during the movement, thereby improving the stability and support reliability of the overall structure.

[0032] In specific implementation, a first vertical direct groove 326 is provided between the first upper support groove 324 and the second upper support groove 325, and a second vertical direct groove 335 is provided between the first lower support groove 333 and the second lower support groove 334. One end of the vertical support rod 34 is connected to the first vertical direct groove 326 and is hinged together by fasteners, and the other end is connected to the second vertical direct groove 335 and is hinged together by fasteners. Through the above structural arrangement, the vertical support rod 34 forms a hinged connection with the upper movable device 32 and the lower movable device 33 respectively, so that the upper and lower movable devices maintain linkage during movement, thereby improving the stability and force balance of the overall structure.

[0033] In practical implementation, the lower end of the upper movable device 32 is provided with a first inclined rod receiving groove 327 on one side and a second inclined rod receiving groove 328 on the other side. One end of the first inclined support rod 35 is connected to the first inclined rod receiving groove 327 and is hinged by a fastener, while the other end is connected to the third crossbar connecting frame 13 and is hinged by a fastener. One end of the second inclined support rod 36 is connected to the second inclined rod receiving groove 328 and is hinged by a fastener, while the other end is connected to the fourth crossbar connecting frame 23 and is hinged by a fastener. Through the above structural arrangement, the first inclined support rod 35 and the second inclined support rod 36 respectively form an inclined support connection relationship with the upper movable device 32 and the two side crossbar connecting frames, so that the upper movable device 32 obtains lateral support and limitation during movement, thereby improving the stability and anti-sway capability of the overall structure.

[0034] When in use, the user supports and moves the device by holding the first walking aid bracket 10 and the second walking aid bracket 20. When the device needs to be stored, the user applies a pulling force to the pulling device 31. The pulling device 31 transmits the movement to the upper movable device 32 and the lower movable device 33 respectively through the first connecting rod 311, the second connecting rod 312 and the third connecting rod 313.

[0035] During the linkage process, the upper movable device 32 drives the first horizontal support frame 12 and the second horizontal support frame 22 to move inward through the first upper horizontal support rod 321 and the second upper horizontal support rod 322, thereby causing the upper structures of the first walking aid bracket 10 and the second walking aid bracket 20 to retract inward; at the same time, the lower movable device 33 drives the third horizontal support frame 13 and the fourth horizontal support frame 23 to move inward synchronously through the first lower horizontal support rod 331 and the second lower horizontal support rod 332, so that the lower structures move closer to each other.

[0036] Furthermore, the vertical support rod 34 forms a linkage constraint between the upper and lower movable devices, while the first oblique support rod 35 and the second oblique support rod 36 provide oblique support and guidance, ensuring that the overall structure maintains a stable spatial movement trajectory during folding. Through the coordinated action of the aforementioned multiple sets of connecting rods and support rods, the three-dimensional folding bracket 30 synchronously undergoes linkage changes in the horizontal, vertical, and longitudinal directions, thereby realizing the three-dimensional folding of the overall structure. This allows the device to quickly fold into a smaller form, making it easy to carry and store.

[0037] When unfolded for use, the user applies external force to the first walking aid bracket 10 and the second walking aid bracket 20 to unfold them outward. The three-dimensional folding bracket 30 moves in the opposite direction under the rotational cooperation of each connecting part, and each connecting rod and support rod gradually returns to its initial position, so that the overall structure unfolds stably and maintains good support strength and usage stability to meet the needs of walking assistance and shopping.

[0038] In practical implementation, the front end of the first walking aid bracket 10 is provided with a first front pole bracket 14. The first front pole bracket 14 is an integrally vertical support structure used to install and support the upper gripping structure and the lower walking structure. The rear end of the first front pole bracket 14 is connected to a first rear support leg 15, which extends rearward to form a stable support frame structure together with the first front pole bracket 14, thereby improving the overall support strength and stability of the walking aid. The upper end of the first front pole bracket 14 is provided with a first bracket handle 16, which is used by the user to grip, thereby providing support and directional control during walking. The first bracket handle 16 can be ergonomically designed to improve grip comfort and ease of use. The lower end of the first front support 14 is equipped with a first front wheel 17, which is used to contact the ground and provide front movement support, so that the device can roll smoothly during the pushing process; the lower end of the first rear support leg 15 is equipped with a first rear wheel 18, which is used to cooperate with the first front wheel 17 to form a front and rear support walking structure, so that the walking aid has good mobility and stability during use.

[0039] In practical implementation, the front end of the second walking aid bracket 20 is provided with a second front pole bracket 24. The second front pole bracket 24 is a vertically arranged support structure used to install and support the upper holding structure and the lower walking structure. The rear end of the second front pole bracket 24 is connected to a second rear support leg 25, which extends rearward to form a stable support frame structure together with the second front pole bracket 24, thereby improving the overall support strength and stability of the walking aid. The upper end of the second front pole bracket 24 is provided with a second bracket handle 26, which is used by the user to grip and provide support and directional control during walking. The second bracket handle 26 can be ergonomically designed to improve grip comfort and ease of use. The lower end of the second front support 24 is equipped with a second front wheel 27, which is used to contact the ground and provide front movement support; the lower end of the second rear support leg 25 is equipped with a second rear wheel 28, which cooperates with the second front wheel 27 to form a front and rear support walking structure, so that the walking aid has good mobility and stability during use.

[0040] In practical implementation, a soft backrest 40 is installed between the first support handle 16 and the second support handle 26. The two ends of the soft backrest 40 are connected to the first support handle 16 and the second support handle 26 respectively, providing back support for the user during use. The soft backrest 40 is made of flexible material to improve comfort and can deform or retract synchronously with the structure when the first walker support 10 and the second walker support 20 are folded, thus not affecting the overall folding action. Through this structural design, the soft backrest 40 provides stable support for the user when unfolded and can be stowed away when folded, thus balancing user comfort and device portability.

Claims

1. A three-dimensional folding shopping cart walking aid, characterized in that, It includes a first walking aid bracket (10), a second walking aid bracket (20), and a three-dimensional folding bracket (30). The three-dimensional folding bracket (30) is disposed between the first walking aid bracket (10) and the second walking aid bracket (20) to connect the first walking aid bracket (10) and the second walking aid bracket (20) into an integrated structure and realize the linkage folding and unfolding between the two. The three-dimensional folding bracket (30) includes a pulling device (31), an upper movable device (32), and a lower movable device (33). The pulling device (31), the upper movable device (32), and the lower movable device (33) are arranged in a triangular sequence. The pulling device (31) is connected to the upper movable device (32) and the lower movable device (33) respectively. The upper movable device (32) and the lower movable device (33) are connected to form a triangular linkage structure. The pulling device (31) is used to drive the upper movable device (32) and the lower movable device (33) to move together under the action of external force, thereby driving the first walking aid bracket (10) and the second walking aid bracket (20) to move synchronously in the horizontal, vertical and longitudinal directions, so as to realize the three-dimensional folding and unfolding of the overall structure.

2. The three-dimensional folding shopping cart walking aid according to claim 1, characterized in that, The lower side of the first walking aid bracket (10) is provided with a first lower connecting part (13), the lower side of the second walking aid bracket (20) is provided with a second lower connecting part (23), the lower movable device (33) is connected to the first lower connecting part (13) with a first connecting rod (331), the lower movable device (33) is connected to the second lower connecting part (23) with a second connecting rod (332), and the lower movable device (33) is connected to the pulling device (31) with a third connecting rod (333).

3. The three-dimensional folding shopping cart walker according to claim 2, characterized in that, The first mounting crossbar (11) is provided with a first crossbar connecting frame (12), the second mounting crossbar (21) is provided with a second crossbar connecting frame (22), the upper movable device (32) is connected to the first crossbar connecting frame (12) by a first upper transverse support rod (321), and the upper movable device (32) is connected to the second crossbar connecting frame (22) by a second upper transverse support rod (322).

4. The three-dimensional folding shopping cart walking aid according to claim 3, characterized in that, The lower side of the first walking aid bracket (10) is provided with a third crossbar connecting frame (13), the lower side of the second walking aid bracket (20) is provided with a fourth crossbar connecting frame (23), a first lower transverse support rod (341) is connected between the lower movable device (33) and the third crossbar connecting frame (13), and a second lower transverse support rod (342) is connected between the lower movable device (33) and the fourth crossbar connecting frame (23).

5. The three-dimensional folding shopping cart walking aid according to claim 4, characterized in that, A vertical support rod (34) is connected between the upper movable device (32) and the lower movable device (33), a first oblique support rod (35) is connected between the upper movable device (32) and the third horizontal bar connecting frame (13), and a second oblique support rod (36) is connected between the upper movable device (32) and the fourth horizontal bar connecting frame (23).

6. The three-dimensional folding shopping cart walking aid according to claim 5, characterized in that, The first mounting crossbar (11) has a first pull rod connection position (111) in the middle, and the second mounting crossbar (21) has a second pull rod connection position (211) in the middle. One end of the pulling device (31) has a first pull rod connection groove (314), and the other end has a second pull rod connection groove (315). One end of the first connecting pull rod (311) is connected to the first pull rod connection position (111), and the other end is connected to the first pull rod connection groove (314). One end of the second connecting pull rod (312) is connected to the second pull rod connection position (211), and the other end is connected to the second pull rod connection groove (315).

7. The three-dimensional folding shopping cart walking aid according to claim 6, characterized in that, A third pull rod connecting groove (316) is provided between the first pull rod connecting groove (314) and the second pull rod connecting groove (315). The upper end of the upper movable device (32) is provided with a third pull rod connecting position (323). One end of the third connecting pull rod (313) is connected in the third pull rod connecting groove (316), and the other end is connected to the third pull rod connecting position (323).

8. The three-dimensional folding shopping cart walking aid according to claim 7, characterized in that, The upper movable device (32) is provided with a first upper support groove (324) and a second upper support groove (325) at its upper end. One end of the first upper transverse support rod (321) is connected to the first upper support groove (324) and the other end is connected to the first crossbar connecting frame (12). One end of the second upper transverse support rod (322) is connected to the second upper support groove (325) and the other end is connected to the second crossbar connecting frame (22). The lower movable device (33) is provided with a first lower support groove (333) and a second lower support groove (334). One end of the first lower transverse support rod (341) is connected to the first lower support groove (333) and the other end is connected to the third crossbar connecting frame (13). One end of the second lower transverse support rod (342) is connected to the second lower support groove (334) and the other end is connected to the fourth crossbar connecting frame (23).

9. The three-dimensional folding shopping cart walker according to claim 8, characterized in that, A first vertical direct groove (326) is provided between the first upper support groove (324) and the second upper support groove (325), and a second vertical direct groove (335) is provided between the first lower support groove (333) and the second lower support groove (334). One end of the vertical support rod (34) is connected to the first vertical direct groove (326), and the other end is connected to the second vertical direct groove (335). A first inclined rod groove (327) is provided on one side of the lower end of the upper movable device (32), and a second inclined rod groove (328) is provided on the other side. One end of the first inclined support rod (35) is connected to the first inclined rod groove (327), and the other end is connected to the third horizontal bar connecting frame (13). One end of the second inclined support rod (36) is connected to the second inclined rod groove (328), and the other end is connected to the fourth horizontal bar connecting frame (23).

10. The three-dimensional folding shopping cart walker according to claim 1 or 9, characterized in that, The first walking aid bracket (10) has a first front pole bracket (14) at its front end, a first rear support leg (15) at its rear end, a first bracket handle (16) at its upper end, a first front wheel (17) at its lower end, and a first rear wheel (18) at its lower end. The second walking aid bracket (20) has a second front pole bracket (24) at its front end, a second rear support leg (25) at its rear end, a second bracket handle (26) at its upper end, a second front wheel (27) at its lower end, and a second rear wheel (28) at its lower end. A soft backrest (40) is installed between the first bracket handle (16) and the second bracket handle (26), and the soft backrest (40) is made of flexible material.

Images