A double-locked scooter folder

Abstract

A double-locked scooter folder, comprising: an upper tube connecting seat, a lower tube connecting seat, the upper tube connecting seat and the lower tube connecting seat are rotatably connected, the upper tube connecting seat is connected with a locking wrench, the locking wrench can lock the upper tube connecting seat and the lower tube connecting seat, the upper tube connecting seat is provided with a locking pin, and the locking pin can lock the upper tube connecting seat and the lower tube connecting seat.The utility model discloses a double-locked scooter folder is provided by setting locking wrench and locking pin between the upper tube connecting seat and the lower tube connecting seat, and the double-locked structure is formed, reliable locking can be realized in the folding and unfolding state, single locking failure is effectively prevented, the risk of loosening and mislocking in the use process is reduced, and therefore the safety and durability of the scooter are improved.

Description

Technical Field

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

[0002] Scooters, as a foldable mode of transportation, are widely used due to their portability and ease of use. Existing scooters generally feature a folding mechanism to allow the seat tube and frame to fold and unfold. The folding mechanism typically uses a wrench latch, pin insertion, or other single mechanical locking structure to secure the seat tube to the frame. However, current folding mechanisms with a single locking mechanism have certain shortcomings. First, a single locking method is prone to weakening over time due to wear and tear on parts and increased assembly gaps, leading to a risk of loosening or detachment. Second, during scooter use, road bumps or vibrations can cause gaps in the single locking mechanism, resulting in wobbling at the connection between the seat tube and frame, affecting riding stability. Third, the unlocking mechanism of some folding mechanisms is relatively simple, making them prone to accidental unlocking due to accidental contact, thus posing a safety hazard. Utility Model Content

[0003] A dual-locking scooter folding mechanism includes an upper tube connector and a lower tube connector, which are rotatably connected. The upper tube connector is connected to a locking wrench, which locks both the upper and lower tube connectors. A locking pin is provided on the upper tube connector to lock both the upper and lower tube connectors. This invention provides a dual-locking scooter folding mechanism by using a locking wrench and a locking pin between the upper and lower tube connectors to form a dual-locking structure. This dual-locking mechanism ensures reliable locking in both folded and unfolded states, effectively preventing single-lock failure, reducing the risk of loosening and mis-locking during use, and thus improving the safety and durability of the scooter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A double-locking scooter folding device includes: an upper tube connector and a lower tube connector, the upper tube connector and the lower tube connector are rotatably connected, the upper tube connector is connected to a locking wrench, the locking wrench can lock the upper tube connector and the lower tube connector, the upper tube connector is provided with a locking pin, the locking pin can lock the upper tube connector and the lower tube connector.

[0006] Further configuration includes: a wrench mounting shaft, an upper tube connecting shaft, a first spring fixing position, and a pin mounting seat. The upper tube connecting shaft is connected to the scooter's upright tube, the locking wrench is connected to the wrench mounting shaft, and the locking pin is installed in the pin mounting seat position.

[0007] Further, the lower tube connector is equipped with a pin locking seat, a pin locking hole, and a locking tongue hole. When the upper tube connector and the lower tube connector are combined, the pin locking seat is inside the upper tube connector.

[0008] Further configuration: The locking wrench includes a pressing handle, a locking tongue, a second spring fixing position, and a first return spring. The locking wrench rotates around the wrench mounting shaft. The first return spring is located between the first spring fixing position and the second spring fixing position. The first return spring is used to keep the locking tongue always in the locking tongue locking hole position. When the locking tongue is in the locking tongue locking hole position, the upper tube connecting seat and the lower tube connecting seat are locked. When the pressing handle is pressed down to disengage the locking tongue from the locking tongue locking hole position, the upper tube connecting seat and the lower tube connecting seat are not locked.

[0009] Further, the locking pin includes: a fixing tube, a pin, a second return spring, and a pull-out button. The fixing tube is fixed to the pin mounting seat. When one end of the pin passes through the fixing tube and extends out of the pin mounting seat, it is inserted into the pin locking hole. The upper and lower tube connecting seats are locked when one end of the pin is removed from the pin locking hole. The other end of the pin passes through the other end of the fixing tube and is fixedly connected to the pull-out button. A second return spring is provided between the pin and the fixing tube to keep the pin always inserted in the pin locking hole.

[0010] This invention provides a double-locking scooter folding device by setting a locking wrench and a locking pin between the upper tube connecting seat and the lower tube connecting seat to form a double-locking structure. It can reliably lock in both folded and unfolded states, effectively preventing single lock failure, reducing the risk of loosening and mis-locking during use, thereby improving the safety and durability of the scooter. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention in its locked state;

[0012] Figure 2 A cross-section of the present invention in its locked state. Figure 1 ;

[0013] Figure 3 A cross-section of the present invention in its locked state. Figure 2 ;

[0014] Figure 4 This is a perspective view of the unlocked state of this utility model;

[0015] Figure 5 This is a cross-section of the unlocked state of this utility model. Figure 1 ;

[0016] Figure 6 This is a cross-section of the unlocked state of this utility model. Figure 2 ;

[0017] Figure 7 This is a perspective view of the unlocked and opened state of this utility model.

[0018] In the diagram: Upper tube connecting seat 1, wrench mounting shaft 11, upper tube connecting shaft 12, first spring fixing position 13, pin mounting seat 14.

[0019] Locking wrench 2, pressing handle 21, locking tongue 22, second spring fixing position 23, first return spring 24

[0020] Lower tube connector 3, pin locking seat 31, pin locking hole 32, locking tongue hole 33

[0021] 4. Locking pin, 5. Fixing tube, 6. Pin, 61. Locking head, 7. Second return spring, 8. Pull-out button. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] like Figures 1-7 As shown: This utility model discloses a double-locking scooter folding mechanism, mainly including an upper tube connecting seat 1, a lower tube connecting seat 3, a locking wrench 2, and a locking pin 4. The upper tube connecting seat 1 and the lower tube connecting seat 3 are rotatably connected by a hinge or a pivot pin, facilitating the folding and unfolding of the scooter's upright tube and frame. The locking wrench 2 is connected to the upper tube connecting seat 1 for the first locking action; simultaneously, the locking pin 4 is provided on the upper tube connecting seat 1 for the second locking action. This double-locking mechanism ensures the stability and safety of the scooter connection when unfolded.

[0027] Specifically, the upper tube connector 1 is provided with a wrench mounting shaft 11, an upper tube connecting shaft 12, a first spring fixing position 13, and a pin mounting seat 14. The upper tube connecting shaft 12 is used for fixed connection with the scooter's upright tube, for example by threading or welding, to ensure the stable installation of the upright tube. The wrench mounting shaft 11 is used to install a locking wrench 2, allowing it to rotate around the shaft. The first spring fixing position 13 is used to fix one end of the first return spring 24. The pin mounting seat 14 is used to install the locking pin 4, providing space for its fixing and extension.

[0028] The lower tube connector 3 is equipped with a pin locking seat 31, a pin locking hole 32, and a locking tongue hole 33. When the upper tube connector 1 and the lower tube connector 3 are in the combined state (i.e., the scooter is unfolded and locked), the pin locking seat 31 is embedded in the upper tube connector 1, forming a tight fit. The pin locking hole 32 is used to receive the pin 6 of the locking pin 4, achieving a second layer of locking. The locking tongue hole 33 is used to receive the locking tongue 22 of the locking wrench 2, achieving a first layer of locking.

[0029] The locking wrench 2 includes a pressing handle 21, a locking tongue 22, a second spring fixing position 23, and a first return spring 24. The locking wrench 2 rotates about the wrench mounting shaft 11 and can be driven to rotate by applying pressure to the pressing handle 21. The first return spring 24 is located between the first spring fixing position 13 and the second spring fixing position 23, and its elasticity helps to keep the locking tongue 22 always inclined to be engaged in the locking tongue retaining hole 33. In the locked state (e.g., Figure 1 , Figure 2 and Figure 3 As shown), the locking tongue 22 is embedded in the locking tongue locking hole 33, preventing the upper tube connecting seat 1 and the lower tube connecting seat 3 from rotating relative to each other, thus achieving the first layer of locking. When the user presses the pressing handle 21, the locking wrench 2 rotates, causing the locking tongue 22 to disengage from the locking tongue locking hole 33 (as shown). Figure 4 , Figure 5 and Figure 6 (as shown), thus unlocking the first layer of locking.

[0030] The locking pin 4 includes a fixing tube 5, a pin 6, a second return spring 7, and a pull-out button 8. The fixing tube 5 is fixedly installed in the pin mounting seat 14, serving as a guide and support structure for the pin 6. One end of the pin 6 passes through one end of the fixing tube 5 and extends out of the pin mounting seat 14; in the locked state, this end is inserted into the pin locking hole 32 (e.g., ...). Figure 3As shown), the upper tube connecting seat 1 and the lower tube connecting seat 3 are locked. A locking head 61 can be provided at this end of the pin 6 to enhance stability and prevent it from falling out during insertion. The other end of the pin 6 passes through the other end of the fixing tube 5 and is fixedly connected to the pull-out button 8 for easy user removal. A second return spring 7 is provided between the pin 6 and the fixing tube 5; its elasticity helps to keep the pin 6 always inclined towards the position of being inserted into the pin locking hole 32. During unlocking, the user pulls the pin 6 using the pull-out button 8, causing one end to disengage from the pin locking hole 32 (as shown). Figure 6 (as shown), thereby unlocking the second layer of locking.

[0031] The working principle of this utility model is as follows: When the scooter is in the unfolded state, the upper tube connecting seat 1 and the lower tube connecting seat 3 are combined, and the first return spring 24 pushes the locking tongue 22 into the locking tongue hole 33 to achieve the first locking; at the same time, the second return spring 7 pushes the pin 6 into the pin locking hole 32 to achieve the second locking (e.g., Figures 1 to 3 (As shown). The dual locking system ensures that even if one lock loosens due to vibration or wear, the other lock maintains connection stability, improving safety.

[0032] When the scooter needs to be folded, the user first presses the handle 21 to disengage the latch 22 from the latch hole 33, thus releasing the first layer of locking; then, by pulling the pin 6 through the pull-out button 8, the user disengages it from the pin locking hole 32, thus releasing the second layer of locking (e.g., ...). Figures 4 to 6 (As shown). At this time, the upper tube connecting seat 1 and the lower tube connecting seat 3 can rotate relative to each other to achieve folding (as shown). Figure 7 (As shown). After unlocking, release the press handle 21 and pull-out button 8, and the reset spring will automatically return the components to their initial position for easy locking next time.

[0033] This utility model provides a double-locking scooter folder by setting a locking wrench (2) and a locking pin (4) between the upper tube connecting seat (1) and the lower tube connecting seat (3) to form a double-locking structure. It can reliably lock in the folded and unfolded states, effectively prevent single lock failure, reduce the risk of loosening and mis-locking during use, and thus improve the safety and durability of the scooter.

[0034] 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 double-locking scooter folding mechanism, comprising: The upper tube connector (1) and the lower tube connector (3) are rotatably connected. The upper tube connector (1) is connected to a locking wrench (2), which can lock the upper tube connector (1) and the lower tube connector (3). The upper tube connector (1) is provided with a locking pin (4), which can lock the upper tube connector (1) and the lower tube connector (3).

2. The double-locking scooter folding device according to claim 1, characterized in that, The upper tube connecting seat (1) is provided with: a wrench mounting shaft (11), an upper tube connecting shaft (12), a first spring fixing position (13), and a pin mounting seat (14). The upper tube connecting shaft (12) is connected to the scooter upright tube, the locking wrench (2) is connected to the wrench mounting shaft (11), and the locking pin (4) is installed in the pin mounting seat (14).

3. The double-locking scooter folding device according to claim 2, characterized in that, The lower tube connector (3) is provided with: a pin locking seat (31), a pin locking hole (32), and a locking tongue hole (33). When the upper tube connector (1) and the lower tube connector (3) are combined, the pin locking seat (31) is inside the upper tube connector (1).

4. The double-locking scooter folding device according to claim 3, characterized in that, The locking wrench (2) is equipped with: a pressing handle (21), a locking tongue (22), a second spring fixing position (23), and a first return spring (24). The locking wrench (2) rotates around the wrench mounting shaft (11). The first return spring (24) is located between the first spring fixing position (13) and the second spring fixing position (23). The first return spring (24) is used to keep the locking tongue (22) always in the locking tongue hole (33) position. When the locking tongue (22) is in the locking tongue hole (33) position, the upper tube connecting seat (1) and the lower tube connecting seat (3) are locked. When the pressing handle (21) is pressed down to make the locking tongue (22) disengage from the locking tongue hole (33) position, the upper tube connecting seat (1) and the lower tube connecting seat (3) are not locked.

5. A double-locking scooter folding device according to claim 3, characterized in that, The locking pin (4) includes: a fixing tube (5), a pin (6), a second return spring (7), and a pull-out button (8). The fixing tube (5) is fixed in the position of the pin mounting seat (14). When one end of the pin (6) passes through the fixing tube (5) and extends out of the pin mounting seat (14) and is inserted into the pin locking hole (32), the upper tube connecting seat (1) and the lower tube connecting seat (3) are locked. When one end of the pin (6) is removed from the pin locking hole (32), the upper tube connecting seat (1) and the lower tube connecting seat (3) are not locked. The other end of the pin (6) passes through the other end of the fixing tube (5) and is fixedly connected to the pull-out button (8). A second return spring (7) is provided between the pin (6) and the fixing tube (5) to keep the pin (6) always inserted in the pin locking hole (32).

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