A linkage dual-locked scooter folder

Abstract

The utility model provides a linkage double -locked scooter folder, and upper tube connecting seat and lower tube connecting seat are rotatable connection through the connecting shaft, eccentric sleeve, locking wrench, eccentric shaft connecting ring and telescopic connecting piece constitute linkage structure. When rotating locking wrench, eccentric sleeve eccentric hole drives locking pin block synchronous locking upper tube and lower tube, and eccentric hole is far from pin block when putting down wrench, realizes one key unlocking. This scheme can complete double locking and unlocking once operation, simplifies operation, promotes convenience.

Description

Technical Field

[0001] This utility model relates to a scooter component, and more particularly to a scooter folding device with a linkage double locking mechanism. Background Technology

[0002] Foldable scooters are popular due to their convenience and portability, especially in urban environments where space is limited. A key component of these scooters is the folding mechanism, which allows the scooter to be folded for easy storage or transport. To ensure user safety during use, these folding mechanisms typically include locking devices to secure the scooter in its unfolded position.

[0003] In recent years, dual-locking mechanisms have been introduced to the market to provide additional security. These mechanisms typically involve separate locking devices for different parts of the folding assembly, such as the joints and handlebars. While this approach enhances security, it also introduces operational complexity for users, as locking or unlocking the scooter requires performing two distinct actions. For example, one lock might be used to secure the folding joints, while another lock is used to secure the handlebars. This design requires users to perform a series of actions when folding or unfolding the scooter, which is not only time-consuming but also prone to user errors, such as forgetting to lock one of the locks, thus affecting the scooter's stability.

[0004] Existing dual-lock scooter folding mechanisms typically require users to manually operate each locking device individually. This method is particularly inconvenient when quick folding or unfolding is needed, especially in urban traffic where users may want to fold the scooter quickly to carry it or unfold it for use. Therefore, while the dual-lock mechanism improves safety, its operational complexity has become a major drawback in the user experience. Utility Model Content

[0005] A scooter folding device with linkage and double locking, wherein the upper tube connecting seat (1) and the lower tube connecting seat (2) are rotatably connected by the connecting shaft (23), the eccentric bushing (3) is sleeved with the connecting shaft (23), the locking wrench (4) is sleeved with the eccentric bushing (3) and rotates synchronously with the outer circle of the eccentric bushing (3) on the same axis, the eccentric shaft connecting ring (6) is sleeved with the eccentric bushing (3) and rotates asynchronously with the outer circle of the eccentric bushing (3) on the same axis, and the locking pin (5) is connected to the eccentric shaft connecting ring (6) through the telescopic connector (7);

[0006] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is locked, the eccentric hole (31) of the eccentric bushing (3) is close to the locking pin (5), so that the locking pin (5) locks the upper tube connecting seat (1) and the lower tube connecting seat (2);

[0007] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is unlocked and lowered, the eccentric hole (31) of the eccentric bushing (3) moves away from the locking pin (5), thereby allowing the locking pin (5) to lock the upper tube connecting seat (1) and the lower tube connecting seat (2).

[0008] This utility model provides a folding device that can complete the double locking and unlocking of the upper and lower tubes of a scooter in one go, through a linkage double locking structure consisting of an eccentric bushing (3), a locking wrench (4), an eccentric shaft connecting ring (6), and a telescopic connecting piece (7). This solves the problem that existing double-locking scooter folding devices require two independent operations and are cumbersome to use.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A scooter folding device with linkage and double locking includes: an upper tube connecting seat (1), a lower tube connecting seat (2), an eccentric bushing (3), a locking wrench (4), a locking pin (5), an eccentric shaft connecting ring (6), and a telescopic connector (7). The upper tube connecting seat (1) and the lower tube connecting seat (2) are rotatably connected through a connecting shaft (23). The eccentric bushing (3) is sleeved with the connecting shaft (23). The locking wrench (4) is sleeved with the eccentric bushing (3) and rotates synchronously with the outer circle of the eccentric bushing (3) on the same axis. The eccentric shaft connecting ring (6) is sleeved with the eccentric bushing (3) and rotates asynchronously with the outer circle of the eccentric bushing (3) on the same axis. The locking pin (5) is connected to the eccentric shaft connecting ring (6) through the telescopic connector (7).

[0011] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is locked, the eccentric hole (31) of the eccentric bushing (3) is close to the locking pin (5), so that the locking pin (5) locks the upper tube connecting seat (1) and the lower tube connecting seat (2);

[0012] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is unlocked and lowered, the eccentric hole (31) of the eccentric bushing (3) moves away from the locking pin (5), thereby allowing the locking pin (5) to lock the upper tube connecting seat (1) and the lower tube connecting seat (2).

[0013] Further, the upper tube connector (1) is provided with an upper locking member (11) at the front end, and the upper connecting ear (12) of the upper tube connector (1) is provided with an upper shaft hole group (13).

[0014] Further, the lower tube connector (2) is provided with a lower locking member (21) at the front end, and the lower tube connector (2) is rotatably connected to the upper tube connector (1) by the connecting shaft (23) of the lower connecting ear (22) passing through the upper shaft hole group (13).

[0015] Further configuration: the eccentric bushing (3) has an eccentric hole (31) inside and a positioning plane (32) on its outer circle. The eccentric hole (31) is sleeved with the connecting shaft (23). The axis of the eccentric hole (31) is parallel to but not the same as the axis of the outer circle of the eccentric bushing (3).

[0016] Further configuration: The locking wrench (4) is equipped with: a switch (41), a locking buckle (42), and a bushing mounting hole (43). The bushing mounting hole (43) is sleeved with the outer circle of the eccentric bushing (3). The bushing mounting hole (43) is a special-shaped hole that fits with the outer circle of the eccentric bushing (3).

[0017] Further configuration: the eccentric shaft connecting ring (6) is provided with a large ring (61) and a small ring (62). The large ring (61) is sleeved with the outer circle of the eccentric bushing (3). The large ring (61) and the outer circle of the eccentric bushing (3) are in clearance fit. The large ring (61) and the outer circle of the eccentric bushing (3) are coaxial but do not rotate synchronously.

[0018] Further configuration: one end of the telescopic connector (7) is connected to the small ring (62) via a connecting pin (71), and the other end of the telescopic connector (7) is connected to the locking pin (5).

[0019] This utility model provides a folding device that can complete the double locking and unlocking of the upper and lower tubes of a scooter in one go, through a linkage double locking structure consisting of an eccentric bushing (3), a locking wrench (4), an eccentric shaft connecting ring (6), and a telescopic connecting piece (7). This solves the problem that existing double-locking scooter folding devices require two independent operations and are cumbersome to use. Attached Figure Description

[0020] Figure 1 The three-dimensional form of this utility model in its locked state Figure 1 ;

[0021] Figure 2 The three-dimensional form of this utility model in its locked state Figure 2 ;

[0022] Figure 3 This is a perspective view of the unlocked state of the secondary lock of this utility model;

[0023] Figure 4 A perspective view of the unlocked and opened state of the first and second level locks of this utility model;

[0024] Figure 5 This is a cross-sectional view of the present invention in its locked state;

[0025] Figure 6 This is a cross-sectional view of the unlocked state of the secondary lock of this utility model;

[0026] Figure 7A cross-sectional view of the first and second level latches of this utility model in the unlocked and opened state;

[0027] Figure 8 For the explosion of this utility model Figure 1 ;

[0028] Figure 9 For the explosion of this utility model Figure 2 ;

[0029] In the diagram: Upper tube connector 1, upper locking element 11, upper connecting lug 12, upper shaft hole assembly 13.

[0030] Lower tube connector 2, lower locking element 21, lower connecting lug 22, connecting shaft 23

[0031] 3. Eccentric bushing; 31. Eccentric hole; 32. Locating plane.

[0032] 4. Locking wrench; 41. Switch; 42. Locking buckle; 43. Bushing mounting hole.

[0033] Locking pin 5, eccentric shaft connecting ring 6, large ring 61, small ring 62, telescopic connector 7, connecting pin 71. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views of the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] like Figures 1-9 As shown: This utility model relates to a scooter folding device with a linkage double locking mechanism, as shown in the attached figure. Figures 1 to 9As shown. The folding device includes an upper tube connector (1), a lower tube connector (2), an eccentric bushing (3), a locking wrench (4), a locking pin (5), an eccentric shaft connecting ring (6), and a telescopic connector (7).

[0039] A scooter folding device with linkage and double locking includes: an upper tube connecting seat (1), a lower tube connecting seat (2), an eccentric bushing (3), a locking wrench (4), a locking pin (5), an eccentric shaft connecting ring (6), and a telescopic connector (7). The upper tube connecting seat (1) and the lower tube connecting seat (2) are rotatably connected through a connecting shaft (23). The eccentric bushing (3) is sleeved with the connecting shaft (23). The locking wrench (4) is sleeved with the eccentric bushing (3) and rotates synchronously with the outer circle of the eccentric bushing (3) on the same axis. The eccentric shaft connecting ring (6) is sleeved with the eccentric bushing (3) and rotates asynchronously with the outer circle of the eccentric bushing (3) on the same axis. The locking pin (5) is connected to the eccentric shaft connecting ring (6) through the telescopic connector (7).

[0040] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is locked, the eccentric hole (31) of the eccentric bushing (3) is close to the locking pin (5), so that the locking pin (5) locks the upper tube connecting seat (1) and the lower tube connecting seat (2);

[0041] When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is unlocked and lowered, the eccentric hole (31) of the eccentric bushing (3) moves away from the locking pin (5), thereby allowing the locking pin (5) to lock the upper tube connecting seat (1) and the lower tube connecting seat (2).

[0042] Preferably, the upper tube connector (1) is provided with an upper locking member (11) at the front end, and the upper connecting ear (12) of the upper tube connector (1) is provided with an upper shaft hole group (13).

[0043] Preferably, the lower tube connector (2) is provided with a lower locking member (21) at the front end, and the lower tube connector (2) is rotatably connected to the upper tube connector (1) by the connecting shaft (23) of the lower connecting ear (22) passing through the upper shaft hole group (13).

[0044] Preferably, the eccentric bushing (3) has an eccentric hole (31) inside and a positioning plane (32) on its outer circle. The eccentric hole (31) is sleeved with the connecting shaft (23). The axis of the eccentric hole (31) is parallel to but not the same as the axis of the outer circle of the eccentric bushing (3).

[0045] Preferably, the locking wrench (4) is provided with: a switch (41), a locking buckle (42), and a bushing mounting hole (43). The bushing mounting hole (43) is sleeved with the outer circle of the eccentric bushing (3). The bushing mounting hole (43) is a special-shaped hole that matches the outer circle of the eccentric bushing (3). The switch (41) is locked by the force of the spring provided in the locking wrench (4). The locking buckle (42) is fixedly connected to the switch (41).

[0046] Preferably, the eccentric shaft connecting ring (6) is provided with: a large ring (61) and a small ring (62). The large ring (61) is sleeved with the outer circle of the eccentric bushing (3). The large ring (61) and the outer circle of the eccentric bushing (3) are in clearance fit. The large ring (61) and the outer circle of the eccentric bushing (3) are coaxial but rotate asynchronously.

[0047] Preferably, one end of the telescopic connector (7) is connected to the small ring (62) via a connecting pin (71), and the other end of the telescopic connector (7) is connected to the locking pin (5).

[0048] This utility model provides a folding device that can complete the double locking and unlocking of the upper and lower tubes of a scooter in one go, through a linkage double locking structure consisting of an eccentric bushing (3), a locking wrench (4), an eccentric shaft connecting ring (6), and a telescopic connecting piece (7). This solves the problem that existing double-locking scooter folding devices require two independent operations and are cumbersome to use.

[0049] The locked and unlocked states are as follows:

[0050] 1. Folding state lock

[0051] When the locking wrench (4) locks the upper tube connected to the upper tube connector (1), the eccentric hole (31) of the eccentric bushing (3) approaches the locking pin (5). This action causes the locking pin (5) to fix the upper tube connector (1) and the lower tube connector (2). At this time, the upper locking member (11) and the lower locking member (21) are fixed by the locking pin (5), preventing relative rotation between the upper tube connector (1) and the lower tube connector (2).

[0052] II. Unlocked Status

[0053] When the locking wrench (4) unlocks the upper tube connected to the upper tube connector (1) and is lowered, the eccentric hole (31) of the eccentric bushing (3) moves away from the locking pin (5). This action causes the locking pin (5) to release its fixation on the upper tube connector (1) and the lower tube connector (2), allowing the upper tube connector (1) and the lower tube connector (2) to rotate relative to each other, thereby realizing the folding of the scooter.

[0054] This invention allows for the simultaneous control of the movement of the eccentric hole (31) in the eccentric bushing (3) by rotating the locking wrench (4), thereby driving the position of the locking pin (5) through the linkage mechanism. This design enables the dual locking and unlocking of the upper tube connecting seat (1) and the lower tube connecting seat (2) with only one operation, simplifying the user's operation steps, improving the user experience, and ensuring the safety of the scooter during use.

[0055] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no conflict in the mechanism, the features in the embodiments disclosed in the present invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A scooter folding device with a linkage double locking mechanism, characterized in that, include: Upper tube connecting seat (1), lower tube connecting seat (2), eccentric bushing (3), locking wrench (4), locking pin (5), eccentric shaft connecting ring (6), telescopic connector (7). The upper tube connecting seat (1) and the lower tube connecting seat (2) are rotatably connected through the connecting shaft (23). The eccentric bushing (3) is sleeved with the connecting shaft (23). The locking wrench (4) is sleeved with the eccentric bushing (3) and rotates synchronously with the outer circle of the eccentric bushing (3) on the same axis. The eccentric shaft connecting ring (6) is sleeved with the eccentric bushing (3) and rotates asynchronously with the outer circle of the eccentric bushing (3) on the same axis. The locking pin (5) is connected to the eccentric shaft connecting ring (6) through the telescopic connector (7). When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is locked, the eccentric hole (31) of the eccentric bushing (3) is close to the locking pin (5), so that the locking pin (5) locks the upper tube connecting seat (1) and the lower tube connecting seat (2); When the upper tube connected to the locking wrench (4) and the upper tube connecting seat (1) is unlocked and lowered, the eccentric hole (31) of the eccentric bushing (3) moves away from the locking pin (5), thereby allowing the locking pin (5) to lock the upper tube connecting seat (1) and the lower tube connecting seat (2).

2. The scooter folding device with linkage double locking according to claim 1, characterized in that, The upper tube connector (1) is provided with an upper locking member (11) at the front end, and the upper connecting ear (12) of the upper tube connector (1) is provided with an upper shaft hole group (13).

3. The scooter folding device with linkage double locking according to claim 2, characterized in that, The lower tube connector (2) is provided with a lower locking member (21) at the front end. The lower tube connector (2) is rotatably connected to the upper tube connector (1) by passing the connecting shaft (23) of the lower connecting ear (22) through the upper shaft hole group (13).

4. The scooter folding device with linkage double locking according to claim 3, characterized in that, The eccentric bushing (3) has an eccentric hole (31) inside and a positioning plane (32) on its outer circle. The eccentric hole (31) is sleeved with the connecting shaft (23). The axis of the eccentric hole (31) is parallel to but not the same as the axis of the outer circle of the eccentric bushing (3).

5. A scooter folding device with linkage double locking according to claim 4, characterized in that, The locking wrench (4) is equipped with: a switch (41), a locking buckle (42), and a bushing mounting hole (43). The bushing mounting hole (43) is sleeved with the outer circle of the eccentric bushing (3). The bushing mounting hole (43) is a special-shaped hole that fits with the outer circle of the eccentric bushing (3).

6. A scooter folding device with linkage double locking according to claim 5, characterized in that, The eccentric shaft connecting ring (6) is provided with a large ring (61) and a small ring (62). The large ring (61) is sleeved with the outer circle of the eccentric bushing (3). The large ring (61) and the outer circle of the eccentric bushing (3) are in clearance fit. The large ring (61) and the outer circle of the eccentric bushing (3) are coaxial but rotate asynchronously.

7. A scooter folding device with linkage double locking according to claim 6, characterized in that, One end of the telescopic connector (7) is connected to the small ring (62) via a connecting pin (71), and the other end of the telescopic connector (7) is connected to the locking pin (5).

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