Foldable walking aid

Abstract

The utility model discloses a foldable walking auxiliary device, including two symmetrical support assembly, the folding mechanism that two can draw close to each other or each other of folding mechanism is connected between two support assemblies, and support assembly includes front support rod and rear support rod, and the upper rotation connection of front support rod and rear support rod makes front support rod and rear support rod can draw close to each other or each other, and the linkage mechanism that when two support assemblies each other away push front support rod and rear support rod each other away is connected between front support rod and rear support rod, and the handle that can rotate relative to it is connected at support assembly top, and the first locking structure that when handle is rotated to the horizontal and will handle lock on support assembly is equipped between handle and support assembly, the utility model discloses the purpose is to overcome the deficiency of prior art, provide a compact structure, convenient folding, the foldable walking auxiliary device of small space occupation after folding.

Description

Technical Field

[0001] This utility model specifically relates to a foldable walking assistance device. Background Technology

[0002] With the accelerating aging of society and the increasing demand for rehabilitation medicine, walking aids have become indispensable tools in the daily lives of the elderly, post-operative recoveries, and people with mobility impairments. Traditional walking aids are mostly fixed structures, which, while offering a degree of stability and support during use, are generally bulky and inconvenient to store and carry, especially when space is limited at home or when using them outdoors. In recent years, foldable walking aids have gradually appeared on the market, aiming to solve the problem of the inconvenience of carrying traditional walking aids. However, most existing folding structures are relatively complex, the folding operation is not simple enough, and they still occupy a significant amount of space when folded, failing to meet users' higher demands for portability. Furthermore, some folding structures lack stability when unfolded, posing certain safety hazards.

[0003] Therefore, there is an urgent need for a walking assistance device with a reasonable structural design, simple folding operation, stable unfolded state, and small space occupation when folded, in order to improve the practicality of products and user experience. This utility model is proposed against this background, aiming to provide a foldable walking assistance device. Through optimized folding mechanism and linkage structure design, it achieves structural stability in the unfolded state and high compactness in the folded state, thereby meeting the needs of users in different usage scenarios. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a foldable walking aid device that is compact in structure, easy to fold, and occupies little space after folding.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a foldable walking aid device, including two symmetrically arranged support assemblies. The two support assemblies are connected by a folding mechanism that allows them to move closer or further apart. Each support assembly includes a front support rod and a rear support rod, which are rotatably connected at their upper parts so that they can move closer or further apart. A linkage mechanism is connected between the front support rod and the rear support rod, which pushes the front support rod and the rear support rod further apart when the two support assemblies move apart. A handle that can rotate relative to the top of each support assembly is connected to the top of the support assembly. A first locking structure is provided between the handle and the support assembly, which locks the handle onto the support assembly when the handle is rotated to a horizontal position.

[0007] As described above, the foldable walking aid device includes a sliding seat that is slidably connected to the front support rod and can slide along the length of the front support rod. The folding mechanism also includes two folding rods that are rotatably connected in the middle. One end of the folding rod is rotatably connected to one of the front support rods, and the other end of the folding rod is rotatably connected to the sliding seat of the other front support rod, so that the two support components can be brought together to achieve folding and the two support components can be moved away from each other to achieve unfolding.

[0008] As described above, the foldable walking assistance device includes a linkage mechanism comprising a linkage rod, an auxiliary rod, and an auxiliary slide. The auxiliary slide is slidably connected to the rear support rod. One end of the linkage rod is rotatably connected to the slide, and the other end is rotatably connected to the rear support rod. One end of the auxiliary rod is rotatably connected to the middle of the linkage rod, and the other end is rotatably connected to the auxiliary slide.

[0009] As described above, the foldable walking aid device also includes a second locking structure between the two support components, which can lock the two components together.

[0010] As described above, the foldable walking aid device has a handle seat at the top of the front support rod, the handle is rotatably connected to the handle seat, and the first locking structure includes a locking hole opened on the handle seat and a spring pin assembly disposed on the handle and capable of being engaged in the locking hole. The spring pin assembly includes a locking pin and a first elastic element that pushes the locking pin out.

[0011] As described above, the foldable walking aid device has a handle slot on the handle base that allows the handle to rotate and enter. The locking hole is opened on the groove wall of the handle slot. The groove wall of the handle slot is also provided with a guide groove that connects to the locking hole and allows the spring pin assembly to slide into the locking hole.

[0012] As described above, in the foldable walking aid device, the handle seat is connected to the top of the front support rod in the middle, the front of the handle seat has a forward-extending mounting part, the handle is rotatably connected to the mounting part, the handle groove runs through the handle seat from front to back, and the locking hole is located at the rear of the handle seat.

[0013] As described above, the foldable walking aid device includes a second locking structure comprising a front locking seat and a rear locking seat rotatably connected, both connected to a connecting rod. The front locking seat and the rear locking seat are rotatably connected to two rear support rods via the connecting rods. The front locking seat has a front locking groove, in which a locking member is axially sliding. The locking member has a radially extending limiting key. The front locking groove has a limiting notch to accommodate the limiting key, thereby preventing the locking member from rotating circumferentially. The rear locking seat has a rear locking groove corresponding to and matching the shape of the front locking groove. A second elastic member is provided between the front and rear locking seats to push the locking member into the rear locking groove. When the locking member enters the rear locking groove, the front part of the locking member is located within the front locking groove. The rear locking seat is connected to a pressing member that can slide axially for manual pressing. The pressing member abuts against the locking member and, when pressed, can push it from the rear locking groove to the front locking groove.

[0014] As described above, the foldable walking aid device has a stop on the front support rod that prevents the sliding seat from continuing to slide after the two support components are unfolded and moved away from each other.

[0015] As described above, in the foldable walking aid device, the lower end of the front support rod is connected to a rotating wheel, and the lower end of the rear support rod is connected to an anti-slip pad.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The structure is compact and easy to fold, taking up little space when folded. The folding mechanism, consisting of a sliding seat and cross folding rods, works in conjunction with a linkage mechanism to achieve synchronous folding of the front and rear support rods. This greatly reduces the size of the entire device when folded, making it easy to store and carry. It is especially suitable for use in homes with limited space or when traveling.

[0018] 2. The unfolded structure is stable and highly safe. The folding mechanism and the linkage mechanism work together, and with the design of the second locking structure, it ensures that the components are evenly stressed and the structure is stable in the unfolded state. It has good load-bearing capacity and safety of use, and effectively prevents accidental folding.

[0019] 3. Easy to operate and with good human-computer interaction. The handle can be rotated and folded and has a spring-loaded locking structure, which not only improves folding efficiency but also enhances grip comfort during use. The second locking structure adopts a mechanical linkage method, which is intuitive to operate and easy to unlock, making it suitable for independent operation by the elderly or people with mobility difficulties. Attached Figure Description

[0020] Figure 1 This is a front-view perspective stereoscopic diagram of the foldable walking assistance device of this utility model;

[0021] Figure 2 This is a rear-view perspective view of the foldable walking assistance device of this utility model;

[0022] Figure 3 This is a side view of the foldable walking aid device of this utility model.

[0023] Figure 4 This is an exploded view of the handle base and handle of this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the handle of this utility model;

[0025] Figure 6 This is a partially exploded view of the second locking structure of this utility model;

[0026] Figure 7 This is a partial cross-sectional schematic diagram of the second locking structure of this utility model;

[0027] Figure 8 This is a schematic diagram illustrating the folding and unfolding principle of the foldable walking assistance device of this utility model. Detailed Implementation

[0028] The utility model will be further described below with reference to the accompanying drawings:

[0029] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0030] This embodiment describes a foldable walking assistance device, such as... Figures 1 to 3As shown, this foldable walking aid device includes two symmetrically arranged support assemblies 1. A folding mechanism 2 connects the two support assemblies 1, allowing them to move closer together or further apart. Each support assembly 1 includes a front support rod 11 and a rear support rod 12. In this embodiment, the folding mechanism 2 includes a sliding seat 21 that is slidably connected to the front support rod 11 and can slide along the length of the front support rod 11. The folding mechanism 2 also includes two folding rods 22 that are rotatably connected in the middle, that is, the two folding rods 22 cross and are rotatably connected. One end of the folding rod 22 is rotatably connected to one of the front support rods 11, and the other end of the folding rod 22 is rotatably connected to the sliding seat 21 of the other front support rod 11. When the two front support rods 11 move closer together, the sliding seat 21 slides downward; when the two front support rods 11 move further apart, the sliding seat 21 slides upward. Of course, this structure can also be reversed, or a sliding seat 21 can be connected to both ends of the folding rod 22 and fitted onto the two front support rods 11 respectively, allowing the two support components 1 to move relative to each other. When they are close together, they are in a folded state; when they are far apart, they are in an unfolded state. This folding mechanism is based on the linkage sliding principle. Through the linkage between the sliding seat 21 and the folding rod 22, the two support components 1 are simultaneously unfolded and folded. The structure is compact and easy to operate, making it suitable for walking aids that require frequent folding and storage. This mechanism uses the up-and-down movement of the sliding seat to drive the opening and closing of the folding rod, thereby changing the spacing between the support components and realizing the overall unfolding or folding of the device, with good folding efficiency and stability.

[0031] like Figures 1 to 3As shown, the support assembly 1 includes a front support rod 11 and a rear support rod 12. The upper parts of the front support rod 11 and the rear support rod 12 are rotatably connected, allowing the front support rod 11 and the rear support rod 12 to move closer to each other or further apart. A linkage mechanism 3 is connected between the front support rod 11 and the rear support rod 12, which pushes the front support rod 11 and the rear support rod 12 further apart when the two support assemblies 1 move away from each other. In this embodiment, the linkage mechanism 3 includes a linkage rod 31, an auxiliary rod 32, and an auxiliary slide block 33. The auxiliary slide block 33 is slidably connected to the rear support rod 12. One end of the linkage rod 31 is rotatably connected to the slide block 21, and the other end of the linkage rod 31 is rotatably connected to the rear support rod 12. One end of the auxiliary rod 32 is rotatably connected to the middle of the linkage rod 31, and the other end of the auxiliary rod 32 is rotatably connected to the auxiliary slide block 33. When the two support components 1 are unfolded, the sliding seat 21 slides upward, causing the linkage rod 31 to swing relative to the rear support rod 12, thereby causing the auxiliary rod 32 to swing and simultaneously pushing the auxiliary sliding seat 33 to slide upward. This allows the front support rod 11 and the rear support rod 12 to unfold simultaneously with the two support components 1. Similarly, when the two support components 1 are folded, the front support rod 11 and the rear support rod 12 also fold together simultaneously. This structure has good stability and high folding efficiency. The design of the linkage mechanism 3 realizes the linkage control between the front and rear support rods and the support components, ensuring that the actions of each component are coordinated and consistent during the unfolding or folding process, avoiding structural jamming or misalignment, and improving the smoothness and stability of the overall operation. At the same time, the mechanism has a simple structure, is easy to assemble and maintain, and is suitable for large-scale production.

[0032] The top of the support assembly 1 is generally connected to a handle 4 for the user to hold. To further improve folding efficiency and reduce the space occupied after folding, such as... Figure 3 and Figure 4 As shown, the top of the support assembly 1 is connected to a handle 4 that can rotate relative to it. A first locking structure 5 is provided between the handle 4 and the support assembly 1, locking the handle 4 onto the support assembly 1 when it is rotated to a horizontal position. This allows the handle 4 to also be folded, resulting in a smaller overall size when the product is folded. The foldable design of the handle 4 not only improves the portability of the device in its folded state but also enhances its flexibility during use. Through the first locking structure 5, the handle 4 can be securely locked in its usage position when unfolded, preventing rotation or loosening during use, thereby improving safety and user experience.

[0033] To be more specific, such as Figures 3 to 5As shown, the front support rod 11 has a handle seat 13 at its top, and the handle 4 is rotatably connected to the handle seat 13. The first locking structure 5 includes a locking hole 131 opened on the handle seat 13 and a spring pin assembly 41 disposed on the handle 4 and capable of being engaged in the locking hole 131. The spring pin assembly 41 includes a locking pin 411 and a first elastic member 412 that pushes the locking pin 411 out. Preferably, the handle 4 is composed of a handle rod 42 and a handle anti-slip sleeve 43 to improve stability and comfort. The locking pin 411 is connected to the handle rod 42, and the first elastic member 412 is located between the handle rod 42 and the locking pin 411. The locking pin 411 can be provided with a step to prevent it from falling out. Preferably, as Figure 4 As shown, the handle base 13 is provided with a handle groove 130 that allows the handle 4 to rotate and enter. The locking hole 131 is formed on the groove wall of the handle groove 130. The groove wall of the handle groove 130 is also provided with a guide groove 132 that connects to the locking hole 131 and allows the spring pin assembly 41 to slide into the locking hole 131. The guide groove 132 can be partially set as an inclined surface, so as to press the locking pin 411 to retract. In addition, the middle part of the handle base 13 is connected to the top of the front support rod 11. The front part of the handle base 13 is provided with a forward-extending mounting part 133. The handle 4 is rotatably connected to the mounting part 133. The handle groove 130 extends through the handle base 13 from front to back. The locking hole 131 is located at the rear of the handle base 13. When the handle 4 is rotated backward, it can enter the handle slot 130 for storage and positioning, ensuring a secure connection between the handle 4 and the front support rod 11. When the handle 4 is rotated forward, the mounting part 133 extends forward, allowing the handle 4 to hang down and rest against the front support rod 11, resulting in a more compact structure when folded. This handle structure adopts a modular design, facilitating disassembly and replacement, while also providing excellent locking performance and tactile feedback. Through the cooperation of the guide slot 132 and the locking hole 131, the user can easily lock the handle by simply pressing lightly, making it convenient and suitable for the elderly or those with mobility impairments.

[0034] As a preferred option, such as Figures 1 to 7As shown, a second locking structure 6 is provided between the two support assemblies 1 to lock them together, thereby locking them when the two support assemblies 1 are unfolded or folded, especially in the unfolded state, making the product structure more stable and easier to use. More specifically, the second locking structure 6 includes a front locking seat 61 and a rear locking seat 62 rotatably connected, both connected to a connecting rod 63. The front locking seat 61 and the rear locking seat 62 are rotatably connected to two rear support rods 12 via the connecting rods 63. The front locking seat 61 has a front locking groove 611, in which a locking member 64 that can slide axially is provided. The locking member 64 has a radially extending limiting key 641. The front locking groove 611 has a limiting recess 612 to accommodate the limiting key 641, thereby preventing the locking member 64 from rotating circumferentially. The rear locking seat 62 has a locking groove 61... A corresponding and matching rear locking groove 621 is provided. The rear locking groove 621 and the front locking groove 611 have the same shape and also have a limiting notch, which is not shown in the figure. A second elastic member 65 is provided between the front locking seat 61 and the rear locking seat 62 for pushing the locking member 64 into the rear locking groove 621. When the locking member 64 enters the rear locking groove 621, the front part of the locking member 64 is located in the front locking groove 611. The rear locking seat 62 is connected to a pressing member 66 that can slide axially for pressing by hand. The pressing member 66 abuts against the locking member 64 and can push it to move from the rear locking groove 621 to the front locking groove 611 when the pressing member 66 is pressed. When the two support assemblies 1 move closer together or further apart, the front locking seat 61 and the rear locking seat 62 rotate relative to each other. When the two connecting rods 63 are aligned, the front locking groove 611 is exactly aligned with the rear locking groove 621. The second elastic element 65 pushes the locking element 64 into the rear locking groove 621. At this time, the front part of the locking element 64 is in the front locking groove 611 and the rear part is in the rear locking groove 621, thereby restricting the rotation of the front locking seat 61 and the rear locking seat 62 and achieving locking. When the pressing element 66 pushes the locking element 64 out of the rear locking groove 621 and into the front locking groove 611, the front locking seat 61 and the rear locking seat 62 can rotate relative to each other, achieving unlocking. Of course, even when the front locking seat 61 and the rear locking seat 62 are locked, the two connecting rods 63 do not necessarily have to be aligned, but aligning the two connecting rods 63 can increase the strength and stability of the structure. The second locking structure 6 serves as an important safety guarantee for the overall structure, ensuring that the device has good stability and load-bearing capacity in the deployed state. It achieves locking and unlocking operations through mechanical linkage, has a reliable structure, is intuitive to operate, and is suitable for frequently used walking aids.

[0035] In this embodiment, the second locking structure 6 is sufficient to limit the extent of the expansion of the two support components 1. However, to further improve the stability of the structure, such as... Figures 1 to 3As shown, the front support rod 11 is equipped with a stop seat 14 to prevent the sliding seat 21 from continuing to slide after the two support assemblies 1 are deployed and moved away from each other. In this way, the two support assemblies 1 are limited and maintain their posture after being deployed. The setting of the stop seat 14 further enhances the structural rigidity of the device in the deployed state, prevents the sliding seat 21 from sliding due to misoperation or external force, thereby avoiding accidental folding of the structure and improving the safety and stability of use.

[0036] As a preferred option, such as Figures 1 to 3 As shown, a rotating wheel 15 is connected to the lower end of the front support rod 11, and an anti-slip pad 16 is connected to the lower end of the rear support rod 12. The combination of the wheel 15 and the anti-slip pad 16 balances the flexibility of movement and the stability of support during use. The wheel facilitates the movement of the device, reducing the user's pushing and pulling resistance; while the anti-slip pad provides good grip when stationary, preventing slippage and improving safety during use.

[0037] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A foldable walking aid device, characterized in that: The system includes two symmetrically arranged support assemblies (1), and a folding mechanism (2) connecting the two support assemblies (1) to allow them to move closer or further apart. Each support assembly (1) includes a front support rod (11) and a rear support rod (12). The upper parts of the front support rod (11) and the rear support rod (12) are rotatably connected so that the front support rod (11) and the rear support rod (12) can move closer or further apart. A linkage mechanism (3) is connected between the front support rod (11) and the rear support rod (12) to push the front support rod (11) and the rear support rod (12) further apart when the two support assemblies (1) move further apart. A handle (4) that can rotate relative to the top of the support assembly (1) is connected to the top of the support assembly (1). A first locking structure (5) is provided between the handle (4) and the support assembly (1) to lock the handle (4) onto the support assembly (1) when the handle (4) is rotated to a horizontal position.

2. The foldable walking aid device according to claim 1, characterized in that: The folding mechanism (2) includes a sliding seat (21) that is slidably connected to the front support rod (11) and can slide along the length of the front support rod (11). The folding mechanism (2) also includes two folding rods (22) that are rotatably connected in the middle. One end of the folding rod (22) is rotatably connected to one of the front support rods (11), and the other end of the folding rod (22) is rotatably connected to the sliding seat (21) of the other front support rod (11), so that the two support components (1) can be brought close together to achieve folding and the two support components (1) can be moved away from each other to achieve unfolding.

3. The foldable walking aid device according to claim 2, characterized in that: The linkage mechanism (3) includes a linkage rod (31), an auxiliary rod (32), and an auxiliary slide (33). The auxiliary slide (33) is slidably connected to the rear support rod (12). One end of the linkage rod (31) is rotatably connected to the slide (21), and the other end of the linkage rod (31) is rotatably connected to the rear support rod (12). One end of the auxiliary rod (32) is rotatably connected to the middle of the linkage rod (31), and the other end of the auxiliary rod (32) is rotatably connected to the auxiliary slide (33).

4. The foldable walking aid device according to claim 1, characterized in that: A second locking structure (6) is provided between the two support assemblies (1) to lock them together.

5. The foldable walking aid device according to any one of claims 1-4, characterized in that: The front support rod (11) is provided with a handle seat (13) at the top. The handle (4) is rotatably connected to the handle seat (13). The first locking structure (5) includes a locking hole (131) opened on the handle seat (13) and a spring pin assembly (41) provided on the handle (4) and capable of being inserted into the locking hole (131). The spring pin assembly (41) includes a locking pin (411) and a first elastic member (412) that pushes the locking pin (411) out.

6. The foldable walking aid device according to claim 5, characterized in that: The handle base (13) is provided with a handle groove (130) that allows the handle (4) to rotate and enter. The locking hole (131) is opened on the groove wall of the handle groove (130). The groove wall of the handle groove (130) is also provided with a guide groove (132) that is connected to the locking hole (131) and allows the spring pin assembly (41) to slide into the locking hole (131).

7. The foldable walking aid device according to claim 6, characterized in that: The handle seat (13) is connected to the top of the front support rod (11) in the middle. The handle seat (13) has a forward-extending mounting part (133) at the front. The handle (4) is rotatably connected to the mounting part (133). The handle groove (130) passes through the handle seat (13) from front to back. The locking hole (131) is located at the rear of the handle seat (13).

8. The foldable walking aid device according to claim 4, characterized in that: The second locking structure (6) includes a front locking seat (61) and a rear locking seat (62) rotatably connected, both of which are connected to a connecting rod (63). The front locking seat (61) and the rear locking seat (62) are rotatably connected to two rear support rods (12) respectively via the connecting rods (63). The front locking seat (61) is provided with a front locking groove (611), and a locking member (64) that can slide axially in the front locking groove (611) is provided therein. The locking member (64) has a radially extending limiting key (641). The front locking groove (611) has a limiting notch (612) that accommodates the limiting key (641) to prevent the locking member (64) from rotating circumferentially. The rear locking... The fixed seat (62) is provided with a rear locking groove (621) that corresponds to and matches the shape of the front locking groove (611). A second elastic member (65) for pushing the locking member (64) into the rear locking groove (621) is provided between the front locking seat (61) and the rear locking seat (62). When the locking member (64) enters the rear locking groove (621), the front part of the rear locking member (64) is located in the front locking groove (611). The rear locking seat (62) is connected to a pressing member (66) that can slide axially for pressing by hand. The pressing member (66) abuts against the locking member (64) and can be pushed from the rear locking groove (621) to the front locking groove (611) when the pressing member (66) is pressed.

9. The foldable walking aid device according to claim 2, characterized in that: The front support rod (11) is provided with a blocking seat (14) to prevent the sliding seat (21) from continuing to slide after the two support assemblies (1) are deployed away from each other.

10. The foldable walking aid device according to any one of claims 1-4, characterized in that: The lower end of the front support rod (11) is connected to a rotating wheel (15), and the lower end of the rear support rod (12) is connected to an anti-slip pad (16).

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