A folding device for a scooter

Abstract

The present invention discloses a folding device for a scooter. It includes an upper folding seat and a lower folding seat, the upper folding seat and the lower folding seat are rotatably connected, the lower folding seat is provided with a horizontally arranged first rotating shaft, a trigger that can rotate towards the upper folding seat is arranged on the first rotating shaft, a base is arranged on one side of the upper folding seat facing the trigger, a vertically arranged ejector rod is arranged on the base, a crown-shaped top block is arranged at the top of the ejector rod, a groove is arranged on the inner side of the trigger, a pressing block is arranged in the groove, a limiting groove matching with the top block is arranged on the bottom surface of the pressing block, a sliding lock is further arranged on the inner side of the trigger, a lock hole matching with the sliding lock is arranged on the upper folding seat, when the trigger rotates to the vertical state, the top block extends into the limiting groove and is tightly pressed against the pressing block, the sliding lock extends into the lock hole for positioning, and a sliding button for driving the sliding lock to be disengaged from the lock hole is arranged on the trigger. The operation of the present invention is simple and convenient, ensuring the locking effect, and is safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of scooter components, and particularly to a folding device for a scooter. Background Art

[0002] For a folding scooter, in order to facilitate the folding of the handlebar riser, a corresponding folding device is generally installed between the handlebar riser and the front fork. When in use, the folding device is in an unfolded and locked state; when not in use, the folding device is in a folded state.

[0003] The existing folding devices for scooters on the market are relatively complex, with cumbersome operations, and are prone to loosening after long-term use. Chinese Patent Publication No. CN207791010U discloses a folding mechanism and an electric scooter equipped with this mechanism, which mainly drives an eccentric wheel through a wrench to achieve locking. It requires a relatively large force from the user to achieve locking, is prone to the situation of incomplete locking, and has cumbersome operations and is prone to wear and looseness after use for a period of time. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a folding device for a scooter, which is simple and convenient to operate, ensures the locking effect, and is safe and reliable.

[0005] To solve the above problems, the present invention is implemented by adopting the following technical solutions:

[0006] A folding device for a scooter according to the present invention includes an upper folding seat and a lower folding seat. The upper folding seat and the lower folding seat are rotatably connected. The lower folding seat is provided with a horizontally arranged first rotating shaft. A trigger that can rotate towards the upper folding seat is arranged on the first rotating shaft. A base is arranged on one side of the upper folding seat facing the trigger. A vertically arranged ejector rod is arranged on the base. A crown-shaped ejector block is arranged at the top of the ejector rod. A groove is arranged inside the trigger. A pressing block is arranged in the groove. A limiting groove matching the ejector block is arranged on the bottom surface of the pressing block. A sliding lock is also arranged inside the trigger. A lock hole matching the sliding lock is arranged on the upper folding seat. When the trigger rotates to the vertical state, the ejector block extends into the limiting groove and presses tightly against the pressing block, and the sliding lock extends into the lock hole for positioning. A sliding button for driving the sliding lock to release the positioning with the lock hole is arranged on the trigger.

[0007] In this solution, the upper folding seat is used to connect the handlebar riser of the scooter, and the lower folding seat is used to connect the front fork of the scooter. When folding, operate the sliding button to release the positioning of the sliding lock and the lock hole, turn the trigger outwards, the top block disengages from the limiting groove, and then turn the upper folding seat to achieve folding. When unfolding, turn the upper folding seat inwards to make the upper folding seat fit with the lower folding seat, turn the trigger to the vertical state, the top block extends into the limiting groove and presses tightly against the pressing block, and the sliding lock extends into the lock hole for positioning, completing two-stage locking. The whole operation process is simple and convenient. The two-stage locking structure ensures the locking effect, which is safe and reliable.

[0008] Preferably, the pressing block is rotatably connected to the trigger through a second rotating shaft. The second rotating shaft is located above the first rotating shaft and is parallel to the first rotating shaft. A blocking block is provided at the top of the pressing block. A limiting protrusion is provided in the groove. The limiting protrusion is located behind the blocking block. A torsion spring is sleeved on the first rotating shaft. The torsion spring is located in the groove. The torsion spring includes a torsion spring body. The left and right ends of the torsion spring body extend outwards to form two first torsion spring arms. The top end of the torsion spring body is provided with an L-shaped second torsion spring arm. Insertion holes are provided at positions corresponding to the first torsion spring arms on the side wall of the groove. The first torsion spring arms are inserted into the insertion holes on the same side. The top end of the second torsion spring arm is located between the pressing block and the inner wall of the groove and abuts against the rear side of the pressing block. The second torsion spring arm is used to drive the pressing block to rotate so that the blocking block abuts against the limiting protrusion. The first torsion spring arm is used to drive the trigger to rotate to the vertical state.

[0009] When the folder is in the folded state, the trigger rotates to the vertical state under the action of the first torsion spring arm, and the pressing block rotates under the action of the second torsion spring arm so that the blocking block abuts against the limiting protrusion. When operating to unfold, turn the upper folding seat inwards to make the upper folding seat fit with the lower folding seat. A part of the top block extends into the limiting groove. The trigger is pushed outwards by the top block and rotates by a certain angle. Turn the trigger to the vertical state. The pressing block rotates around the second rotating shaft so that the top block completely extends into the limiting groove. The top block fits tightly with the limiting groove. The limiting groove is spherical. At this time, the central axis of the limiting groove is vertical.

[0010] Preferably, the bottom surface of the pressing block is provided with a first guiding inclined surface that slopes downwards from front to back. The limiting groove is located on the first guiding inclined surface. This facilitates the top block to enter the limiting groove.

[0011] Preferably, first limiting blocks are symmetrically provided on the left and right sides of the bottom surface of the pressing block. A second guiding inclined surface that slopes downwards from front to back is provided in front of the first limiting block. A limiting inclined surface that slopes upwards from front to back is provided behind the first limiting block. Second limiting blocks are symmetrically provided on the left and right sides of the front end of the base. The second limiting blocks correspond to the first limiting blocks one by one. When the upper folding seat rotates to the vertical state and fits with the lower folding seat, the second limiting block is located directly below the limiting inclined surface of the corresponding first limiting block. The first limiting block restricts the corresponding second limiting block from rotating with the upper folding seat.

[0012] The limiting inclined surface is located on the rotation path of the corresponding second limiting block as the folding upper seat rotates. When folding, operate the sliding button to release the positioning of the sliding lock and the lock hole, rotate the trigger outwards, the top block disengages from the limiting groove, the limiting inclined surface does not contact the second limiting block, and then rotate the folding upper seat to achieve folding. Release the trigger, and the trigger rotates to the vertical state under the action of the first torsion spring arm. The pressing block rotates under the action of the second torsion spring arm so that the blocking block abuts against the limiting protrusion.

[0013] When unfolding, rotate the folding upper seat inwards. When the folding upper seat rotates close to the vertical, the front end of the top block contacts the first guiding inclined surface, and the second limiting block contacts the second guiding inclined surface. Continue to rotate the folding upper seat to the vertical state so that the folding upper seat fits with the folding lower seat. The front end of the top block enters the limiting groove along the first guiding inclined surface and pushes the trigger to rotate outwards by a certain angle. After the second limiting block passes through the corresponding second guiding inclined surface, it moves to directly below the corresponding limiting inclined surface. At this time, the limiting inclined surface is located on the rotation path of the corresponding second limiting block as the folding upper seat rotates, realizing pre-locking. Even if the folding upper seat rotates outwards due to accidental force, the second limiting block will be blocked by the limiting inclined surface of the corresponding first limiting block, making it impossible for the folding upper seat to continue rotating outwards. Then, rotate the trigger to the vertical state, and the pressing block rotates around the second rotating shaft so that the top block completely extends into the limiting groove. The top block fits tightly with the limiting groove. The limiting groove is spherical. At this time, the central axis of the limiting groove is vertical, ensuring that the folder does not shake. Since the trigger rotates inwards to lock, if the folding upper seat rotates outwards due to accidental force, driving the trigger to rotate inwards, it will make the folder lock tighter, ensuring the locking effect and being safe and reliable.

[0014] Preferably, the cross-section of the second limiting block is arc-shaped.

[0015] Preferably, the second torsion spring arm includes a horizontal portion, a bent portion, and a vertical portion. One end of the horizontal portion is connected to the torsion spring body, the other end of the horizontal portion is connected to the bottom end of the vertical portion through the bent portion, and the top end of the vertical portion is located between the pressing block and the inner wall of the groove and abuts against the rear side of the pressing block.

[0016] Preferably, a threaded hole is provided on the base along the longitudinal direction, the ejector rod is a threaded rod, and the threaded rod is threadedly connected to the threaded hole. The position of the ejector rod can be adjusted as needed, so as to adjust the height of the top block, make the top block and the pressing block abut tightly, and avoid the folder from shaking.

[0017] Preferably, a sliding hole is provided on the trigger along the longitudinal direction, the sliding button is located outside the trigger, a slider extending into the sliding hole is provided on the inner side of the sliding button, the slider can slide up and down along the sliding hole, a spring is provided in the sliding hole, the top of the spring abuts against the top of the sliding hole, the bottom of the spring abuts against the slider, and the sliding lock is fixedly connected to the slider.

[0018] The sliding button drives the sliding lock to slide up and down by sliding up and down, so as to realize the connection positioning / release positioning of the sliding lock and the lock hole.

[0019] Preferably, a fixed seat is further provided on one side of the folding upper seat facing the trigger. The fixed seat is located above the base, and the lock hole is located on the top surface of the fixed seat.

[0020] Preferably, one side of the sliding lock facing the fixed seat is arc-shaped, and one side of the fixed seat facing the sliding lock is arc-shaped.

[0021] The beneficial effects of the present invention are: simple and convenient operation, ensuring the locking effect, safe and reliable, simple structure, and low cost. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the embodiment;

[0023] Figure 2 is an exploded view of the embodiment;

[0024] Figure 3 is a schematic structural diagram of the pressing block;

[0025] Figure 4 is a schematic structural diagram of the torsion spring;

[0026] Figure 5 is a schematic structural diagram of the folding upper seat;

[0027] Figure 6 is a cross-sectional view of the embodiment in the folded state;

[0028] Figure 7 is a cross-sectional view of the embodiment in the pre-locked state;

[0029] Figure 8 is a cross-sectional view of the embodiment in the locked state;

[0030] Figure 9 is a cross-sectional view of the embodiment in the unlocked state.

[0031] In the figure: 1. Folding upper seat, 2. Folding lower seat, 3. First rotating shaft, 4. Trigger, 5. Base, 6. Thumb rod, 7. Thumb block, 8. Groove, 9. Pressing block, 10. Limiting groove, 11. Sliding lock, 12. Lock hole, 13. Sliding button, 14. Second rotating shaft, 15. Stopper, 16. Limiting protrusion, 17. Torsion spring, 18. Torsion spring body, 19. First torsion spring arm, 20. Second torsion spring arm, 21. First guiding inclined surface, 22. First limiting block, 23. Second guiding inclined surface, 24. Limiting inclined surface, 25. Second limiting block, 26. Horizontal part, 27. Bent part, 28. Vertical part, 29. Threaded hole, 30. Slide hole, 31. Slide block, 32. Spring, 33. Fixed seat. Detailed implementation manners

[0032] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0033] Embodiment: A folding device for a scooter according to this embodiment, as Figures 1 to 9 shown, includes an upper folding seat 1 and a lower folding seat 2. The upper folding seat 1 and the lower folding seat 2 are rotatably connected. A horizontally arranged first rotating shaft 3 is provided on the lower folding seat 2. A trigger 4 that can rotate towards the upper folding seat 1 is provided on the first rotating shaft 3. A base 5 is provided on one side of the upper folding seat 1 facing the trigger 4. A vertically arranged ejector rod 6 is provided on the base 5. A spherical crown-shaped top block 7 is provided at the top of the ejector rod 6. A groove 8 is provided inside the trigger 4. A pressing block 9 is provided in the groove 8. A limiting groove 10 matching the top block 7 is provided on the bottom surface of the pressing block 9. A sliding lock 11 is also provided inside the trigger 4. A lock hole 12 cooperating with the sliding lock 11 is provided on the upper folding seat 1. When the trigger 4 rotates to the vertical state, the top block 7 extends into the limiting groove 10 and abuts against the pressing block 9 tightly, and the sliding lock 11 extends into the lock hole 12 for positioning. A sliding button 13 for driving the sliding lock 11 to release the positioning with the lock hole 12 is provided on the trigger 4.

[0034] The pressing block 9 is rotatably connected to the trigger 4 through a second rotating shaft 14. The second rotating shaft 14 is located above the first rotating shaft 3 and is parallel to the first rotating shaft 3. A stop block 15 is provided at the top of the pressing block 9. A limiting protrusion 16 is provided in the groove 8. The limiting protrusion 16 is located behind the stop block 15. A torsion spring 17 is sleeved on the first rotating shaft 3. The torsion spring 17 is located in the groove 8. The torsion spring 17 includes a torsion spring body 18. Two symmetric first torsion spring arms 19 extend outward from the left and right ends of the torsion spring body 18. The top end of the torsion spring body 18 is provided with an L-shaped second torsion spring arm 20. Insertion holes are provided at positions corresponding to the first torsion spring arms 19 on the side wall of the groove 8. The first torsion spring arms 19 are inserted into the insertion holes on the same side. The top end of the second torsion spring arm 20 is located between the pressing block 9 and the inner wall of the groove 8 and abuts against the rear side of the pressing block 9. The second torsion spring arm 20 is used to drive the pressing block 9 to rotate so that the stop block 15 abuts against the limiting protrusion 16. The first torsion spring arm 19 is used to drive the trigger 4 to rotate to the vertical state. A first guiding inclined surface 21 that slopes downward from front to back is provided on the bottom surface of the pressing block 9. The limiting groove 10 is located on the first guiding inclined surface 21. The first guiding inclined surface facilitates the top block to enter the limiting groove.

[0035] On the left and right sides of the bottom surface of the briquette 9, first limit blocks 22 are symmetrically provided. On the front side of the first limit block 22, a second guiding inclined surface 23 that slopes downward from front to back is provided. On the rear side of the first limit block 22, a limit inclined surface 24 that slopes upward from front to back is provided. On the left and right sides of the front end of the base 5, second limit blocks 25 are symmetrically provided. The second limit blocks 25 correspond to the first limit blocks 22 one by one. When the folding upper seat 1 rotates to the vertical state and fits with the folding lower seat 2, the second limit block 25 is located directly below the limit inclined surface 24 of the corresponding first limit block 22. The first limit block 22 restricts the corresponding second limit block 25 from rotating with the folding upper seat 1. The cross-section of the second limit block 25 is arc-shaped.

[0036] The second torsion spring arm 20 includes a horizontal portion 26, a bent portion 27, and a vertical portion 28. One end of the horizontal portion 26 is connected to the torsion spring body 18. The other end of the horizontal portion 26 is connected to the bottom end of the vertical portion 28 through the bent portion 27. The top end of the vertical portion 28 is located between the briquette 9 and the inner wall of the groove 8 and abuts against the rear side of the briquette 9.

[0037] In this solution, the folding upper seat is used to connect the handlebar riser of the scooter, and the folding lower seat is used to connect the front fork of the scooter. The locking state of the folder is as Figure 1 、 Figure 8 shown. The folding state of the folder is as Figure 6 shown.

[0038] When folding, operate the sliding button to release the positioning of the sliding lock and the lock hole, turn the trigger outwards, the top block disengages from the limit groove, and the limit inclined surface does not contact the second limit block, as Figure 9 shown. Then rotate the folding upper seat to achieve folding. Release the trigger, and the trigger rotates to the vertical state under the action of the first torsion spring arm. The briquette rotates under the action of the second torsion spring arm so that the stopper abuts against the limit protrusion, as Figure 6 shown.

[0039] When unfolding, rotate the folding upper seat inwards. When the folding upper seat rotates close to the vertical, the front end of the top block contacts the first guiding inclined surface, and the second limit block contacts the second guiding inclined surface. Continue to rotate the folding upper seat to the vertical state so that the folding upper seat fits with the folding lower seat, as Figure 7 shown. The front end of the top block enters the limit groove along the first guiding inclined surface and pushes the trigger to rotate outwards by a certain angle. After the second limit block passes through the corresponding second guiding inclined surface, it moves to directly below the corresponding limit inclined surface. At this time, the limit inclined surface is located on the rotation path of the corresponding second limit block rotating with the folding upper seat, realizing pre-locking. Even if the folding upper seat rotates outwards due to accidental force, the second limit block will be blocked by the limit inclined surface of the corresponding first limit block, making the folding upper seat unable to continue rotating outwards; then, as Figure 8As shown, turn the trigger to the vertical state. The pressing block rotates around the second rotating shaft so that the top block completely extends into the limiting groove. The top block fits tightly with the limiting groove. The limiting groove is spherical-crowned. At this time, the central axis of the limiting groove is vertical, ensuring that the folder does not shake. Since the trigger rotates inward to lock, if the upper folding seat rotates outward due to accidental force, driving the trigger to rotate inward, the folder will be locked tighter, ensuring the locking effect, being safe and reliable. The whole operation process is simple and convenient, with a simple structure and low cost.

[0040] A threaded hole 29 is provided longitudinally on the base 5. The ejector rod 6 is a threaded rod, and the threaded rod is threadedly connected to the threaded hole 29. The position of the ejector rod can be adjusted as needed, so as to adjust the height of the top block, making the top block tightly press against the pressing block to avoid the folder from shaking.

[0041] A sliding hole 30 is provided longitudinally on the trigger 4. The sliding button 13 is located outside the trigger 4. A slider 31 extending into the sliding hole 30 is provided inside the sliding button 13. The slider 31 can slide up and down along the sliding hole 30. A spring 32 is provided in the sliding hole 30. The top of the spring 32 abuts against the top of the sliding hole 30, and the bottom of the spring 32 abuts against the slider 31. The sliding lock 11 is fixedly connected to the slider 31. The sliding button drives the sliding lock to slide up and down by sliding up and down, so as to realize the connection positioning / disconnection positioning of the sliding lock and the lock hole.

[0042] On the side of the upper folding seat 1 facing the trigger 4, there is also a fixed seat 33. The fixed seat 33 is located above the base 5. The lock hole 12 is located on the top surface of the fixed seat 33. The side of the sliding lock 11 facing the fixed seat 33 is arc-shaped, and the side of the fixed seat 33 facing the sliding lock 11 is arc-shaped. It is convenient for the sliding lock to slide into the lock hole for locking.

Claims

1. A folding device for a scooter, comprising an upper folding seat (1) and a lower folding seat (2), the upper folding seat (1) and the lower folding seat (2) being rotatably connected, characterized in that, A horizontally arranged first rotating shaft (3) is provided on the folding lower seat (2). A trigger (4) that can rotate towards the folding upper seat (1) is provided on the first rotating shaft (3). A base (5) is provided on one side of the folding upper seat (1) facing the trigger (4). A vertically arranged ejector rod (6) is provided on the base (5). A spherical crown-shaped ejector block (7) is provided at the top of the ejector rod (6). A groove (8) is provided on the inner side of the trigger (4). A pressing block (9) is provided in the groove (8). A limiting groove (10) matching the ejector block (7) is provided on the bottom surface of the pressing block (9). A sliding lock (11) is further provided on the inner side of the trigger (4). A lock hole (12) matching the sliding lock (11) is provided on the folding upper seat (1). When the trigger (4) rotates to the vertical state, the ejector block (7) extends into the limiting groove (10) and abuts tightly against the pressing block (9), and the sliding lock (11) extends into the lock hole (12) for positioning. A sliding button (13) for driving the sliding lock (11) to release the positioning with the lock hole (12) is provided on the trigger (4).

2. The folding device for a scooter according to claim 1, characterized in that, The pressing block (9) is rotatably connected to the trigger (4) through a second rotating shaft (14). The second rotating shaft (14) is located above the first rotating shaft (3) and is parallel to the first rotating shaft (3). A stop block (15) is provided at the top of the pressing block (9). A limiting protrusion (16) is provided in the groove (8). The limiting protrusion (16) is located behind the stop block (15). A torsion spring (17) is sleeved on the first rotating shaft (3). The torsion spring (17) is located in the groove (8). The torsion spring (17) includes a torsion spring body (18). The left and right ends of the torsion spring body (18) extend outwards to form two first torsion spring arms (19). The top end of the torsion spring body (18) is provided with an L-shaped second torsion spring arm (20). Insertion holes are provided at positions corresponding to the first torsion spring arms (19) on the side wall of the groove (8). The first torsion spring arms (19) are inserted into the insertion holes on the same side. The top end of the second torsion spring arm (20) is located between the pressing block (9) and the inner wall of the groove (8) and abuts against the rear side of the pressing block (9). The second torsion spring arm (20) is used to drive the pressing block (9) to rotate so that the stop block (15) abuts against the limiting protrusion (16), and the first torsion spring arm (19) is used to drive the trigger (4) to rotate to the vertical state.

3. The folding device for a scooter according to claim 2, wherein A first guiding inclined surface (21) that slopes downwards from front to back is provided on the bottom surface of the pressing block (9). The limiting groove (10) is located on the first guiding inclined surface (21).

4. A folding device for a scooter according to claim 2 or 3, characterized in that On the left and right sides of the bottom surface of the pressing block (9), first limiting blocks (22) are symmetrically arranged. On the front side of the first limiting block (22), a second guiding inclined surface (23) that slopes downward from front to back is provided. On the rear side of the first limiting block (22), a limiting inclined surface (24) that slopes upward from front to back is provided. On the left and right sides of the front end of the base (5), second limiting blocks (25) are symmetrically arranged. The second limiting blocks (25) correspond to the first limiting blocks (22) one by one. When the folding upper seat (1) rotates to the vertical state and fits with the folding lower seat (2), the second limiting block (25) is directly below the limiting inclined surface (24) of the corresponding first limiting block (22), and the first limiting block (22) restricts the corresponding second limiting block (25) from rotating with the folding upper seat (1).

5. The folding device for a scooter according to claim 4, wherein, The cross-section of the second limiting block (25) is arc-shaped.

6. A folding device for a scooter according to claim 2 or 3, characterized in that, The second torsion spring arm (20) includes a horizontal portion (26), a bent portion (27), and a vertical portion (28). One end of the horizontal portion (26) is connected to the torsion spring body (18), the other end of the horizontal portion (26) is connected to the bottom end of the vertical portion (28) through the bent portion (27), and the top end of the vertical portion (28) is located between the pressing block (9) and the inner wall of the groove (8) and abuts against the rear side of the pressing block (9).

7. A folding device for a scooter according to claim 1 or 2 or 3, characterized in that, A threaded hole (29) arranged longitudinally is provided on the base (5), the ejector rod is a threaded rod, and the threaded rod is threadedly connected to the threaded hole (29).

8. A folding device for a scooter according to claim 1 or 2 or 3, characterized in that, A sliding hole (30) arranged longitudinally is provided on the trigger (4). The sliding button (13) is located outside the trigger (4). A slider (31) extending into the sliding hole (30) is provided on the inner side of the sliding button (13). The slider (31) can slide up and down along the sliding hole (30). A spring (32) is provided in the sliding hole (30). The top of the spring (32) abuts against the top of the sliding hole (30), the bottom of the spring (32) abuts against the slider (31), and the sliding lock (11) is fixedly connected to the slider (31).

9. A folding device for a scooter according to claim 8, characterized in that, On the side of the folding upper seat (1) facing the trigger (4), a fixed seat (33) is further provided. The fixed seat (33) is located above the base (5), and the lock hole (12) is located on the top surface of the fixed seat (33).

10. The folding device for a scooter according to claim 9, characterized in that, The side of the sliding lock (11) facing the fixed seat (33) is arc-shaped, and the side of the fixed seat (33) facing the sliding lock (11) is arc-shaped.

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