Folding structure of scooter and scooter

Abstract

The utility model discloses a folding structure of a scooter and the scooter, including sleeve pipe, the sleeve pipe is located the outer periphery of the head pipe, the connecting arm, one end rotates with sleeve pipe and connects, the other end is used for fixedly connecting the footboard, the limiting arm, one end rotates with the connecting arm and connects, and the other end is equipped with the external convex block that one side of sleeve pipe is close, and one side away from the block is equipped with the hook body no.

Description

Technical Field

[0001] This utility model relates to the field of scooter technology, and in particular to a folding structure for scooters and a scooter itself. Background Technology

[0002] With increasingly congested urban traffic, electric scooters have become a popular mode of transportation for "last mile" travel due to their lightweight, zero-emission, and easy-to-park features. A typical electric scooter consists of a stem, footboard, front-wheel drive assembly, and a folding mechanism. When folded, its volume can be reduced to about one-third of its unfolded size, making it easy to carry into subways, elevators, or car trunks, thus significantly improving its usability and storage efficiency.

[0003] For example, Chinese utility model patent publication number CN221316533U discloses a folding structure for a scooter. This solution sets a folding fixing device between the square tube and the pedal. The device includes a hook plate, left / right decorative pieces, a square steel bar, a torsion spring, and an exposed switch button located outside the square tube. The hook plate has an opening square groove and a folding square groove on its front and rear sides, respectively. By pressing the switch button, the pin ball pushes the hook plate down, and the square steel bar can slide between the two square grooves to achieve unfolding or folding and locking.

[0004] However, in actual use, it was found that the exposed switch button was located directly above the square tube toggle hole. If the rider accidentally touched it with their leg, it could unlock the scooter instantly, causing the front of the scooter to fold suddenly, which could easily lead to a safety accident. Utility Model Content

[0005] This utility model addresses the problem that in existing scooter folding structures, the switch button is exposed directly above the square tube toggle hole. Accidental contact by the rider's leg could instantly unlock the scooter, causing the front of the scooter to fold suddenly, which could easily lead to a safety accident. The technical problem this utility model aims to solve is to provide a scooter folding structure that addresses the above-mentioned issues.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problem is: a folding structure for a scooter, comprising: A sleeve, fitted around the outer circumference of the head tube; The connecting arm has one end rotatably connected to the sleeve, and the other end is used to fix and connect the foot pedal; The limiting arm has one end rotatably connected to the connecting arm, and the other end has a protruding locking block on the side near the sleeve, and a hook on the side away from the locking block. A locking element is rotatably mounted on the sleeve, and a hook body slidably mounted on the locking element is a second hook that can automatically reset after sliding backward on the scooter; The sleeve is provided with a bayonet that mates with the locking block; When the scooter is in the unfolded state, the locking block engages with the locking slot, and the second hook engages with the first hook, forming a two-way lock.

[0007] A further preferred embodiment of this utility model is as follows: the sleeve is provided with a mounting plate on the side near the foot pedal, the upper side of the connecting arm has a mounting port for inserting the mounting plate, the mounting plate extends into the mounting port and is rotatably connected to the connecting arm through a rotating shaft.

[0008] A further preferred embodiment of this utility model is: the lower end of the limiting arm is rotatably connected to the mounting opening via a hinge shaft, and when the locking block is engaged in the mounting opening, the limiting arm, the connecting arm, and the mounting plate together form a triangular support structure.

[0009] A further preferred embodiment of this utility model is as follows: the locking component includes a U-shaped arm, a shaft, a compression spring, and the second hook. The U-shaped arm has a crossbar inside, which divides its interior into a U-shaped opening and a sliding hole. The U-shaped arm is hinged to the upper end of the mounting plate through the U-shaped opening. The shaft is located in the sliding hole along the length of the scooter. The second hook and the compression spring are slidably sleeved on the shaft. One end of the compression spring abuts against the side wall of the sliding hole away from the U-shaped opening, and the other end abuts against the rear side wall of the second hook. The upper end of the second hook extends out of the sliding hole to form a toggle key.

[0010] A further preferred embodiment of this utility model is: the upper end of the limiting arm has an extension block that extends into the U-shaped opening, and the side of the extension block near the mounting plate has a contact surface that is flush with and abuts against the rear end face of the mounting plate.

[0011] A further preferred embodiment of this utility model is: a pressure shaft is rotatably provided inside the extension block, the shaft is a bolt post with threads at the tail, the bolt post is threadedly connected to the crossbar, and the bolt post end abuts against the pressure shaft by rotating the bolt post.

[0012] A further preferred embodiment of this utility model is as follows: the limiting arm is provided with a hook body three on the same side as the locking block, and the mounting opening is also provided with an abutment shaft located below the rotating connection of the limiting arm. When the scooter is in a folded state, the limiting arm rotates in the rear direction of the scooter and abuts against the abutment shaft, and the hook body two hooks onto the hook body three.

[0013] A further preferred embodiment of this utility model is as follows: the mounting plate has a V-shaped opening on its lower side facing the connecting arm, the lower inclined end of the V-shaped opening has an upwardly inclined limiting platform, and an insertion block is fixedly provided in the mounting opening. When the scooter is in the unfolded state, the insertion block extends into the V-shaped opening, and the bottom of the insertion block rests on the limiting platform, which provides support for the insertion block.

[0014] A further preferred embodiment of this utility model is as follows: the bayonet is a right-angled T-shaped bayonet, the card block is a right-angled T-shaped card block that cooperates with the right-angled T-shaped bayonet, and the hypotenuse of the right-angled T-shaped bayonet is located at the upper end near the mounting plate. When the right-angled T-shaped card block is inserted into the right-angled T-shaped bayonet, the right angle of the right-angled T-shaped bayonet can support the right angle of the right-angled T-shaped card block.

[0015] Another subject of this utility model: a scooter, including a head tube, foot pedals, a front wheel and a rear wheel, wherein the lower end of the head tube is rotatably connected to the steering column of the front fork on the front wheel, and the rear end of the foot pedals is connected to the rear wheel via the rear wheel axle, characterized in that: it also includes the above-mentioned folding structure of the scooter, wherein the sleeve of the folding structure is fitted around the outer periphery of the head tube and rotates with the head tube, and the lower end of the connecting arm of the folding structure is fixedly connected to the foot pedals.

[0016] Compared with existing technologies, this utility model has the following advantages: Through the dual locking structure of the locking block and the locking slot, and the hook body one and hook body two, it effectively avoids the safety hazard of the "exposed button" in existing technologies being easily accidentally activated, causing the scooter to suddenly fold. Unlocking this utility model requires actively pushing hook body two backward, while accidental contact by the rider's leg usually results in a forward push, opposite to the unlocking direction, thus significantly reducing the risk of misoperation; even if hook body two accidentally disengages from hook body one during use, the locking block can restrict the rotation of the head tube and the sleeve. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model; Figure 2 This is a top view of Embodiment 1 of the present invention; Figure 3 This utility model Figure 2 Sectional view at point AA; Figure 4 This utility model Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is a three-dimensional structural diagram of the limiting arm in Embodiment 1 of this utility model; Figure 6 This is an exploded view of Embodiment 1 of this utility model; Figure 7This is a three-dimensional structural diagram of Embodiment 2 of the present invention.

[0019] In the diagram: 1. Sleeve; 11. Mounting plate; 111. Bayonet; 112. V-shaped opening; 113. Limiting platform; 2. Connecting arm; 21. Mounting port; 22. Insertion block; 3. Foot pedal; 4. Limiting arm; 41. Locking block; 42. Hook body one; 43. Hook body three; 44. Extension block; 45. Abutting surface; 46. Pressure shaft; 5. Locking element; 51. U-shaped arm; 511. Crossbar; 512. U-shaped opening; 513. Sliding hole; 52. Shaft; 53. Compression spring; 54. Hook body two; 541. Toggle key; 6. Rotating shaft; 7. Hinge shaft; 8. Abutting shaft; 9. Front wheel; 10. Rear wheel; 12. Rear wheel axle. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example 1

[0022] This embodiment mainly describes the folding structure of the scooter and the scooter itself, as detailed below: like Figures 1 to 6As shown, the folding structure and scooter of the scooter include a sleeve 1, a connecting arm 2, a limiting arm 4, and a locking member 5. The sleeve 1 is fitted onto the outer periphery of the head tube. One end of the connecting arm 2 is rotatably connected to the sleeve 1, and the other end is fixedly connected to the foot pedal 3. One end of the limiting arm 4 is rotatably connected to the connecting arm 2, and the other end has a protruding locking block 41 on the side near the sleeve 1 and a hook body 42 on the side away from the locking block 41. The sleeve 1 has a locking slot 111 that cooperates with the locking block 41. The locking member 5 is rotatably mounted on the sleeve 1, and a second hook body 54 is slidably mounted on the locking member 5, which can automatically reset after sliding backward on the scooter. When the scooter is in the unfolded state, the locking block 41 is engaged in the locking slot 111, and the second hook body 54 is engaged with the first hook body 42, forming a two-way lock on the limiting arm 4 to prevent the head tube from rotating accidentally. This design solves the safety hazard of accidental activation of exposed buttons leading to sudden folding in existing technologies. To fold the scooter, push the second hook 54 backward to disengage it from the first hook 42, rotate the limiting arm 4 to disengage the locking block 41 from the locking slot 111, and then rotate the head tube to fold towards the foot pedal 3. The operation is convenient and can be completed with one hand. In this design, unlocking requires actively pushing the second hook 54 backward (not the exposed button). If the rider accidentally touches the second hook 54 with their leg, the system primarily pushes it forward, the opposite of the unlocking motion, thus avoiding the risk of accidental folding caused by leg contact. Simultaneously, the design of the locking block 41 and locking slot 111 provides a second layer of protection; when the second hook 54 accidentally disengages from the first hook 42, the locking block 41 restricts the rotation of the head tube and sleeve 1.

[0023] Specifically, the sleeve 1 has a mounting plate 11 on the side near the foot pedal 3, and the upper side of the connecting arm 2 has a mounting port 21 for the mounting plate 11 to be inserted. The mounting plate 11 extends into the mounting port 21 and is rotatably connected to the connecting arm 2 through the pivot 6, so that a stable rotating hinge is formed between the head tube and the foot pedal 3. The pivot 6 provides a rotation fulcrum when the head tube is folded, ensuring smooth folding and unfolding actions, while improving the overall structural strength.

[0024] Specifically, the lower end of the limiting arm 4 is rotatably connected to the mounting port 21 via the hinge shaft 7. When the locking block 41 of the limiting arm 4 is engaged in the locking port 111, the limiting arm 4, the connecting arm 2, and the mounting plate 11 together form a triangular support structure. The triangular support structure has excellent mechanical stability and can withstand the impact and vibration during riding, avoid swaying, and improve riding safety and comfort.

[0025] like Figure 6As shown, the locking component 5 includes a U-shaped arm 51, a shaft 52, a compression spring 53, and a hook 54. The U-shaped arm 51 has a crossbar 511 inside, which divides the interior of the U-shaped arm 51 into a U-shaped opening 512 and a sliding hole 513. The U-shaped arm 51 is hinged to the upper end of the mounting plate 11 through the U-shaped opening 512. The shaft 52 is located in the sliding hole 513 along the length of the scooter. The hook 54 and the compression spring 53 are slidably sleeved on the shaft 52. One end of the compression spring 53 abuts against the side wall of the sliding hole 513 away from the U-shaped opening 512, and the other end abuts against the rear side wall of the hook 54. The compression spring 53 provides an automatic reset force for the hook body 54, ensuring that the hook body 54 quickly returns to its original position after release. Under the action of the compression spring 53, the hook body 54 maintains a locked position, preventing locking failure due to untimely reset. This design is not only compact and space-saving, but also eliminates the need for manual intervention in reset through mechanical self-locking, greatly improving operational reliability. The upper end of the hook body 54 extends out of the sliding hole 513, forming a toggle key 541. Users can easily unlock the hook body 54 by pushing it backward using the toggle key 541. The toggle key 541 is reasonably positioned, provides a clear tactile feel, and enhances the user experience.

[0026] Specifically, a pressure shaft 46 is rotatably connected within the extension block. The shaft 52 is a bolt post with threads at its tail, which is threaded to the crossbar 511. By rotating the bolt post, the end of the bolt post abuts against the pressure shaft 46. When wear occurs after the folding structure has been used for a period of time, leading to an increase in the locking gap, the bolt post can be tightened to press the front end of the bolt post against the pressure shaft 46, thereby pushing the limiting arm 4 slightly forward. This ensures that the locking block 41 and the locking slot 111 always maintain a tight fit, extending the service life of the folding structure. Simultaneously, when the scooter is unfolded, adjusting the bolt post to abut against the pressure shaft 46 further enhances the stability of the scooter during use.

[0027] like Figure 4 and 5 As shown, the upper end of the limiting arm 4 has an extension block 44 that extends into the U-shaped opening 512. The side of the extension block 44 near the mounting plate 11 has a contact surface 45 that is flush with and abuts against the rear end face of the mounting plate 11. The contact surface 45 is tightly fitted with the end face of the mounting plate 11 to eliminate gaps, avoid abnormal noise and shaking during riding, and further improve structural stability.

[0028] Specifically, the limiting arm 4 is equipped with a hook 3 43 on the same side as the locking block 41. The mounting opening 21 also has an abutment shaft 8 located below the rotating connection of the limiting arm 4. When hook 1 42 disengages from hook 2 54, the limiting arm 4 is rotated rearwards and abuts against the abutment shaft 8. The head tube is then rotated rearwards until it approaches hook 3 43. Hook 2 54 is then slid rearwards, and the head tube is continued to rotate until hook 2 54 aligns with hook 3 43. Hook 2 54 is then released, and it automatically resets and engages with hook 3 43 to maintain the folded state of the scooter. This design locks the scooter in its folded state, preventing the head tube from accidentally unfolding during transport and improving safety and convenience.

[0029] Specifically, a protective sleeve is fitted on the outer surface of the abutment shaft 8. The protective sleeve is made of Oxford or rubber. The protective sleeve prevents the limit arm 4 from directly colliding with the abutment shaft 8, thus avoiding noise and wear, extending the service life, and improving the appearance.

[0030] Specifically, the mounting plate 11 has a V-shaped opening 112 on its lower side, facing the connecting arm 2. The lower sloping end of the V-shaped opening 112 has an upwardly inclined limiting platform 113. An insertion block 22 is fixedly installed inside the mounting opening 21. When the scooter is in the unfolded state, the insertion block 22 extends into the V-shaped opening 112, and the bottom of the insertion block 22 rests on the limiting platform 113. The limiting platform 113 provides vertical support for the insertion block 22. The V-shaped opening 112 and the insertion block 22 work together to provide additional support, distribute the force, and enhance the overall rigidity in the unfolded state. The sloping surface at the V-shaped opening 112 guides the insertion block 22 to slide in and out, making the folding action smoother. The double support points (limiting platform 113 + hook 2 54) greatly improve the compressive strength of the folding structure. When hook 1 42 disengages from hook 2 54, the head tube and sleeve 1 are rotated, and the insertion block 22 slowly slides out of the V-shaped opening 112. The folding process is smooth and stable, avoiding jamming.

[0031] Specifically, the latch 111 is a right-angled T-shaped latch, and the latch block 41 is a right-angled T-shaped latch that mates with the right-angled T-shaped latch. The hypotenuse of the right-angled T-shaped latch is located near the upper end of the mounting plate 11. When the right-angled T-shaped latch is engaged with the right-angled T-shaped latch, the right angle of the right-angled T-shaped latch provides support for the right angle of the right-angled T-shaped latch. The right-angled T-shaped latch and the right-angled T-shaped latch form a right-angle interlock, providing vertical support. The hypotenuse guides the latch block to slide in, and the right-angled T-shaped mating structure provides surface contact support, resulting in strong load-bearing capacity. This avoids deformation or wear caused by single-point stress and ensures reliable locking even after long-term use. Example 2

[0032] This embodiment mainly describes a foldable scooter, as detailed below: like Figure 7As shown, the scooter includes a head tube, foot pedals 3, a front wheel 9, a rear wheel 10, and the aforementioned folding structure. The lower end of the head tube is rotatably connected to the front fork steering column of the front wheel 9 via a bearing, enabling the front wheel 9 to steer. The rear end of the foot pedals 3 is mounted on the rear wheel 10 via the rear wheel axle 12, forming a drive and load-bearing platform. The sleeve 1 of the folding structure is fitted onto the outer periphery of the head tube. To prevent the sleeve 1 from rotating relative to the head tube, vertically extending grooves are provided on both sides of the inner wall of the sleeve 1. A corresponding elastic retaining strip is provided at the connection between the head tube and the sleeve 1. When the sleeve 1 is fitted onto the head tube, the elastic retaining strip is engaged in the vertical groove. When the head tube is rotated, the sleeve 1 can rotate synchronously with the head tube. The sleeve 1 can also be fixed to the head tube by interference fit or clamping. The connecting arm 2 can be rigidly connected to the front end of the foot pedals 3 by bolts or welding.

[0033] When the scooter is unfolded, the folding structure is double-locked by the latch 41 and the latch 111, and the hook 1 42 and the hook 2 54. The longitudinal impact force during riding is gradually dispersed through the limiting arm 4, the mounting plate 11, the insertion block 22 and the V-shaped opening 112, preventing relative wobbling between the head tube and the foot pedal 3. When folding is needed, push the toggle button 541 backward with one hand. The hook 2 54 compresses the spring 53 and disengages from the hook 1 42. Move it backward to the limiting arm 4 so that the limiting arm 4 abuts against the abutment shaft 8. Then rotate the head tube and the sleeve 1 backward. After rotating to the limit position, push the toggle button 541 backward to align the hook 2 54 with the hook 3 43. Release the toggle button 541, and the hook 2 54 will automatically revert to hook 3 43, thus realizing the folding of the scooter. This greatly reduces the space occupied by the whole vehicle, and it can be easily towed or put into the trunk of a car or the luggage rack of a subway.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The folding structure and the scooter provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A folding structure for a scooter, characterized in that, include: A sleeve, fitted around the outer circumference of the head tube; The connecting arm has one end rotatably connected to the sleeve, and the other end is used to fix and connect the foot pedal; The limiting arm has one end rotatably connected to the connecting arm, and the other end has a protruding locking block on the side near the sleeve, and a hook on the side away from the locking block. A locking element is rotatably mounted on the sleeve, and a hook body slidably mounted on the locking element is a second hook that can automatically reset after sliding backward on the scooter; The sleeve is provided with a bayonet that mates with the locking block; When the scooter is in the unfolded state, the locking block engages with the locking slot, and the second hook engages with the first hook, forming a two-way lock.

2. The folding structure of the scooter according to claim 1, characterized in that: The sleeve has a mounting plate on the side near the foot pedal, and the upper side of the connecting arm has a mounting port for inserting the mounting plate. The mounting plate extends into the mounting port and is rotatably connected to the connecting arm through a rotating shaft.

3. The folding structure of the scooter according to claim 2, characterized in that: The lower end of the limiting arm is rotatably connected to the mounting opening via a hinge shaft. When the locking block is engaged in the mounting opening, the limiting arm, connecting arm, and mounting plate together form a triangular support structure.

4. The folding structure of the scooter according to claim 2, characterized in that: The locking component includes a U-shaped arm, a shaft, a compression spring, and the second hook. The U-shaped arm has a crossbar that divides its interior into a U-shaped opening and a sliding hole. The U-shaped arm is hinged to the upper end of the mounting plate through the U-shaped opening. The shaft is located in the sliding hole along the length of the scooter. The second hook and the compression spring are slidably sleeved on the shaft. One end of the compression spring abuts against the side wall of the sliding hole away from the U-shaped opening, and the other end abuts against the rear side wall of the second hook. The upper end of the second hook extends out of the sliding hole to form a toggle key.

5. The folding structure of the scooter according to claim 4, characterized in that: The upper end of the limiting arm has an extension block that extends into the U-shaped opening, and the side of the extension block near the mounting plate has a contact surface that is flush with and abuts against the rear end face of the mounting plate.

6. The folding structure of the scooter according to claim 5, characterized in that: The extension block is rotatably equipped with a pressure shaft, and the shaft is a bolt post with threads at the tail. The bolt post is threadedly connected to the crossbar, and the end of the bolt post abuts against the pressure shaft by rotating the bolt post.

7. The folding structure of the scooter according to claim 2, characterized in that: The limiting arm is provided with a hook body three on the same side as the locking block. The mounting port is also provided with an abutment shaft located below the rotating connection of the limiting arm. When the scooter is in a folded state, the limiting arm rotates in the rear direction of the scooter and abuts against the abutment shaft, and the hook body two hooks onto the hook body three.

8. The folding structure of the scooter according to claim 2, characterized in that: The mounting plate has a V-shaped opening on its lower side facing the connecting arm. The lower inclined end of the V-shaped opening has an upwardly inclined limiting platform. An insertion block is fixedly installed inside the mounting opening. When the scooter is in the unfolded state, the insertion block extends into the V-shaped opening, and the bottom of the insertion block rests on the limiting platform, which provides support for the insertion block.

9. The folding structure of the scooter according to claim 1, characterized in that: The latch is a right-angled T-shaped latch, and the latch block is a right-angled T-shaped latch block that cooperates with the right-angled T-shaped latch. The hypotenuse of the right-angled T-shaped latch is located at the upper end near the mounting plate. When the right-angled T-shaped latch block is inserted into the right-angled T-shaped latch, the right angle of the right-angled T-shaped latch block can support the right angle of the right-angled T-shaped latch block.

10. A scooter, comprising a head tube, foot pedals, a front wheel, and a rear wheel, wherein the lower end of the head tube is rotatably connected to the steering column of the front fork on the front wheel, and the rear end of the foot pedals is connected to the rear wheel via the rear wheel axle, characterized in that: It also includes a folding structure for the scooter as described in any one of claims 1-9, wherein the sleeve of the folding structure is fitted around the outer periphery of the head tube and rotates with the head tube, and the lower end of the connecting arm of the folding structure is fixedly connected to the foot pedal.

Images