Locking structure of rollator

Abstract

The utility model provides a locking structure of a rollator, which comprises a left frame, a right frame, a folding frame and a locking mechanism, the left frame and the right frame are mutually symmetrical and oppositely arranged, the folding frame is arranged between the left frame and the right frame, a rotating shaft is arranged in the middle of the folding frame, the folding frame can be rotatably folded along the rotating shaft, and the locking mechanism is arranged on the left frame and the right frame. The folding frame is hinged to the left frame and the right frame through a connecting rod mechanism, a limiting column capable of being connected with the locking mechanism in a clamped mode is arranged on the connecting rod mechanism, one end of the locking mechanism is hinged to the folding frame, and the other end of the locking mechanism can be connected with the limiting column in a clamped mode so that the rollator can be locked to be in an unfolded state. The connecting rod mechanism is connected with the left frame and the right frame, so that the stability of the rollator can be effectively supported, and the structural strength of the product is enhanced; meanwhile, due to the arrangement of the limiting column, the locking mechanism can be tightly matched with the connecting rod mechanism, and reliable locking of the unfolding state of the rollator is achieved.

Description

Technical Field

[0001] This application relates to the technical field of walking aids, and particularly to a locking structure for a walking aid. Background Art

[0002] As a portable and practical auxiliary tool, a folding walking aid needs to ensure its safety in the unfolded state to ensure the stability and safety of users during use. To achieve this goal, a locking mechanism is often used in the design to lock the unfolded state to prevent accidental folding or loosening during use.

[0003] However, there are some problems with the locking mechanisms of folding walking aids on the market. As the usage time increases, the locking mechanism may become loose, resulting in the unfolded state no longer being firm or stable. This situation may pose a potential threat to the safety of users. Especially when users are walking or using the walking aid, sudden folding or loosening may cause falls or other accidents. Summary of the Utility Model

[0004] To solve the above technical problems, this application provides a locking structure for a walking aid with firm locking.

[0005] A locking structure for a walking aid includes a left frame, a right frame, a folding frame, and a locking mechanism. The left frame and the right frame are symmetrical and oppositely arranged. The folding frame is disposed between the left frame and the right frame. A rotating shaft is provided in the middle of the folding frame, and the folding frame can be rotated and folded along the rotating shaft. The folding frame is respectively hinged to the left frame and the right frame through a link mechanism. A limiting post for the locking mechanism to engage with is provided on the link mechanism. One end of the locking mechanism is hinged to the folding frame, and the other end can be engaged with the limiting post to lock the walking aid in the unfolded state.

[0006] For the locking structure of the walking aid as described above, the locking mechanism includes a hinge shaft passing through the folding frame, a lock fastener hinged to the hinge shaft, and an elastic member disposed between the hinge shaft and the lock fastener. The lock fastener can rotate around the hinge shaft. When the lock fastener is engaged with the limiting post, the walking aid can be locked in the unfolded state.

[0007] For the locking structure of the walking aid as described above, a fixing post for limiting the lock fastener is also provided on the locking mechanism. The lock fastener is provided with a limiting groove corresponding to the fixing post for the fixing post to slide through.

[0008] As described above, the locking structure of the walker, the locking member includes a hinged portion hinged on the hinge shaft, a locking portion that can be engaged with the limiting column, and a lifting portion located at one end of the hinged portion away from the hinge shaft, and the limiting grooves are provided on both sides of the locking member.

[0009] As described above, the locking structure of the walker is characterized in that the folding frame is also provided with a seat cushion for sitting, and a flexible pull rope is passed through the seat cushion, and both ends of the flexible pull rope are connected to the lifting part. When the flexible pull rope is lifted, the lifting part is lifted, the locking part rotates around the hinge part, and the locking part is disengaged from the limiting column to be unlocked.

[0010] As described above, the locking structure of the walker, the folding frame includes a first X-shaped cross tube and a second X-shaped cross tube, the middle parts of the first X-shaped cross tube and the second X-shaped cross tube are connected to each other by a connecting shaft, and the two ends of the first X-shaped cross tube and the second X-shaped cross tube are connected by a cross bar.

[0011] In the locking structure of the walker as described above, a backrest is further provided between the left frame and the right frame.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] The present application provides a locking structure for a rollator, which is connected to a left frame and a right frame through a connecting rod mechanism, can effectively support the stability of the rollator and enhance the structural strength of the product; at the same time, the provision of a limit column can enable the locking mechanism and the connecting rod mechanism to cooperate closely, thereby achieving reliable locking of the unfolded state of the rollator and ensuring safety during use, allowing the user to easily perform locking and unlocking operations, which is convenient, fast and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for describing the embodiments are briefly introduced below.

[0015] Figure 1 It is a three-dimensional schematic diagram of a locking structure of a walker of the present application;

[0016] Figure 2 It is a locking schematic diagram of a locking structure of a walker of the present application;

[0017] Figure 3 This is a schematic diagram of unlocking a locking structure of a walker of the present application;

[0018] Figure 4 It is a schematic diagram of the locking mechanism of a locking structure of a walker in the present application. DETAILED DESCRIPTION

[0019] The present utility model will be further described below in conjunction with the accompanying drawings:

[0020] As Figures 1-4 shown, a locking structure of a walking aid includes a left frame 1, a right frame 2, a folding frame 3, a locking mechanism 4, a rotating shaft 5, a link mechanism 6, a limit post 60, a hinge shaft 40, a lock fastener 41, an elastic member 42, a fixed post 61, a limit groove 43, a hinge portion 410, a lock portion 411, a lifting portion 412, a seat cushion 7, a flexible pull rope 8, a first X-shaped cross tube 31, a second X-shaped cross tube 32, a cross bar 33, and a backrest 9.

[0021] A locking structure of a walking aid includes a left frame 1, a right frame 2, a folding frame 3, and a locking mechanism 4. The left frame 1 and the right frame 2 are symmetric and oppositely arranged. The folding frame 3 is disposed between the left frame 1 and the right frame 2. A rotating shaft 5 is provided in the middle of the folding frame 3. The folding frame 3 can be rotated and folded along the rotating shaft 5. The folding frame 3 is respectively hinged to the left frame 1 and the right frame 2 through a link mechanism 6. A limit post 60 for the locking mechanism 4 to be engaged with is provided on the link mechanism 6. One end of the locking mechanism 4 is hinged to the folding frame 3, and the other end can be engaged with the limit post 60 to lock the walking aid in the unfolded state. By connecting with the left frame and the right frame through the link mechanism, the stability of the walking aid can be effectively supported, and the structural strength of the product is enhanced. At the same time, the setting of the limit post can enable the locking mechanism to cooperate closely with the link mechanism, realize reliable locking of the unfolded state of the walking aid, ensure safety during use, and enable the user to easily perform locking and unlocking operations, which is convenient, fast, and highly practical.

[0022] Preferably, the locking mechanism 4 includes a hinge shaft 40 passing through the folding frame 3, a lock fastener 41 hinged to the hinge shaft 40, and an elastic member 42 disposed between the hinge shaft 40 and the lock fastener 41. The lock fastener 41 can rotate around the hinge shaft 40. When the lock fastener 41 is engaged with the limit post 60, the walking aid can be locked in the unfolded state, which can ensure the stability and reliability of the locking mechanism, make the walking aid not easily fold accidentally in the unfolded state, and improve the safety and user experience of the product.

[0023] Preferably, a fixed post 61 for limiting the lock fastener 41 is also passed through the locking mechanism 4. The lock fastener 41 is provided with a limit groove 43 corresponding to the fixed post 61 for the fixed post 61 to slide therein, which can effectively control the moving range of the lock fastener, ensure the operation accuracy and stability of the locking mechanism, and at the same time facilitate the user to perform locking and unlocking operations, improving the reliability and ease of use of the product.

[0024] Preferably, the locking member 41 includes a hinged portion 410 hinged to the hinge shaft 40, a locking portion 411 that can be snap-fitted with the limiting post 60, and a lifting portion 412 located at one end of the hinged portion 410 away from the hinge shaft 40. The limiting groove 43 is provided on both sides of the locking member 41, making the locking member flexible and stable, improving the efficiency and accuracy of the locking mechanism, making it more convenient and fast for users to operate, and thus enhancing the reliability of the product and the user experience.

[0025] Preferably, a seat cushion 7 for sitting is further provided on the folding frame 3. A flexible pull rope 8 is threaded through the seat cushion 7. Both ends of the flexible pull rope 8 are connected to the lifting portion 412. When the flexible pull rope 8 is lifted, the lifting portion 412 is lifted, and the locking member 41 rotates around the hinged portion 410, and the locking portion 411 disengages from the limiting post 60 to unlock. When the flexible pull rope is lifted, the lifting portion is lifted, the locking member rotates around the hinged portion, and the locking portion disengages from the limiting post to unlock. The unlocking operation is more convenient. The user only needs to pull the rope to easily unlock the locked state, improving the usability and comfort of the product.

[0026] Preferably, the folding frame 3 includes a first X-shaped cross tube 31 and a second X-shaped cross tube 32. The middle parts of the first X-shaped cross tube 31 and the second X-shaped cross tube 32 are connected to each other by a connecting shaft. The two ends of the first X-shaped cross tube 31 and the second X-shaped cross tube 32 are connected by a cross bar 33. The folding frame has good stability and load-bearing capacity, can effectively support the structure of the entire walking aid, and improves the structural strength and use safety of the product.

[0027] Preferably, a backrest 9 is further provided between the left frame 1 and the right frame 2.

[0028] 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 locking structure for a walker, comprising a left frame (1), a right frame (2), a folding frame (3) and a locking mechanism (4), wherein the left frame (1) and the right frame (2) are symmetrical and arranged opposite to each other, the folding frame (3) is arranged between the left frame (1) and the right frame (2), a rotating shaft (5) is arranged in the middle of the folding frame (3), the folding frame (3) can be rotated and folded along the rotating shaft (5), the folding frame (3) is hinged to the left frame (1) and the right frame (2) respectively through a connecting rod mechanism (6), and is characterized in that: The connecting rod mechanism (6) is provided with a limiting column (60) for the locking mechanism (4) to be engaged with. One end of the locking mechanism (4) is hinged to the folding frame (3), and the other end can be engaged with the limiting column (60) to lock the walker to maintain the unfolded state.

2. The locking structure of the rollator according to claim 1, characterized in that: The locking mechanism (4) comprises a hinge shaft (40) passing through the folding frame (3), a locking member (41) hinged on the hinge shaft (40), and an elastic member (42) arranged between the hinge shaft (40) and the locking member (41); the locking member (41) can rotate around the hinge shaft (40); when the locking member (41) is clamped on the limiting column (60), the rollator can be locked to maintain the unfolded state.

3. The locking structure of the rollator according to claim 2, characterized in that: The locking mechanism (4) is also provided with a fixing column (61) for limiting the locking member (41), and the locking member (41) is provided with a limiting groove (43) corresponding to the fixing column (61) for the fixing column (61) to slide.

4. The locking structure of the rollator according to claim 3, characterized in that: The locking member (41) comprises a hinged portion (410) hinged on the hinge shaft (40), a locking portion (411) that can be engaged with the limiting column (60), and a lifting portion (412) located at one end of the hinged portion (410) away from the hinge shaft (40), and the limiting groove (43) is opened on both sides of the locking member (41).

5. The locking structure of the rollator according to claim 4, characterized in that: The folding frame (3) is also provided with a seat cushion (7) for sitting, and a flexible pull rope (8) is passed through the seat cushion (7), and both ends of the flexible pull rope (8) are connected to the lifting part (412). When the flexible pull rope (8) is lifted, the lifting part (412) is lifted, and the locking part (41) rotates around the hinge part (410), and the locking part (411) is separated from the limiting column (60) to be unlocked.

6. The locking structure of the rollator according to claim 1, characterized in that: The folding frame (3) comprises a first X-shaped cross tube (31) and a second X-shaped cross tube (32); the first X-shaped cross tube (31) and the second X-shaped cross tube (32) are connected to each other in the middle via a connecting shaft; and the two ends of the first X-shaped cross tube (31) and the second X-shaped cross tube (32) are connected via a cross bar (33).

7. The locking structure of the rollator according to claim 1, characterized in that: A backrest (9) is also provided between the left frame (1) and the right frame (2).

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