A folding scooter

Abstract

The utility model discloses a folding scooter, including the vertical rod whole formed by the relative pivot connection of upper vertical rod and lower vertical rod, the lower vertical rod downside is equipped with the sliding plate for driving the whole car movement, the lower extreme of upper vertical rod with the upper extreme of lower vertical rod is equipped with the upper protruding portion and lower protruding portion along the radial same direction extension respectively, the upper protruding portion and lower protruding portion are opposite and are provided, the upper protruding portion and lower protruding portion form a closed type structure with inside hole after combination, the hole has the screw knob of thread cooperation, the closed type structure outside is equipped with a cover, the screw knob is through its own thread section and is through the cover and is fixed with the cover clamping in the outside of closed type structure through the thread. The utility model has the advantages of being able to guarantee folding convenience and safety and reliability.

Description

Technical Field

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

[0002] As a new type of short-distance transportation tool, scooters are becoming increasingly popular. Their structure mainly includes the handlebars, poles, foot pedals connected to the poles, and drive wheels. To improve the convenience of storage and carrying, existing scooters usually have foldable poles, which allows the whole vehicle to be quickly folded after use to reduce space occupation and facilitate storage or transportation.

[0003] Chinese patent application No. 202420242661.4 discloses a locking mechanism for a folding scooter, including a wrench and a fourth locking structure. The scooter includes a hinged column and a footboard. The wrench is located on the front side of the column and hinged to the footboard, with a through hole at its side end. The fourth locking structure includes a locking rod and a control component. The locking rod is slidably connected within the through hole, and the control component is mounted on the wrench to control the movement of the locking rod. The control component includes a top block and a third spring. The top block is slidably connected to the wrench, with one side located within a receiving cavity and the other side penetrating the wrench. The third spring is located within the receiving cavity and is used to drive the top block to slide back to its original position. The top block has a first inclined surface on the side near the locking rod.

[0004] In the above technical solution, the top block is pushed to unlock the locking rods on both sides, thereby realizing the folding of the upright. However, in the above technical solution, since the top block is kept in the normal upper limit position by only the third spring to push the locking rods on both sides open, the top block will inevitably be hit or accidentally touched during use, which will cause the locking rods to lose radial constraint and unlock instantly, causing the upright to fold unexpectedly under force and causing the user to lose support, resulting in safety accidents such as tipping or falling. Summary of the Invention

[0005] To address the shortcomings of existing technologies, a folding scooter is provided.

[0006] This utility model is achieved using the following technical solution:

[0007] A folding scooter includes an integral upright formed by an upper upright and a lower upright pivotally connected. The lower upright has a skateboard for driving the scooter. The lower end of the upper upright and the upper end of the lower upright have an upper protrusion and a lower protrusion extending in the same radial direction, respectively. The upper and lower protrusions are arranged opposite to each other. The upper and lower protrusions, when combined, form an enclosed structure with an inner hole. A screw knob is threaded into the hole. A cover is fitted on the outside of the enclosed structure. The screw knob passes through the cover through its own threaded section and clamps and fixes the cover to the outside of the enclosed structure through the thread.

[0008] When a user needs to fold and store the scooter, rotate the screw knob to disengage it from the enclosure structure and remove the cover. At this point, the enclosure structure is unlocked after the cover is removed, allowing the upper and lower uprights to fold relative to each other so that the upper and lower protrusions separate, thus completing the folding and storage of the scooter.

[0009] By creating a nested structure between the cover and the protrusion, the upright remains supported. The structural strength of the nested structure restricts the overall folding of the upright, requiring the user to perform a specific screw or knob operation to unlock the cover. This eliminates the possibility of spontaneous unlocking during riding, ensuring both folding convenience and safety.

[0010] Preferably, the lower end of the upper upright and the upper end of the lower upright are respectively fitted with an upper bushing and a lower bushing, and the upper bushing and the lower bushing are provided with a hinge portion on the same radial direction side, and the upper protrusion and the lower protrusion are respectively provided on the side of the upper upright and the lower upright opposite to the hinge portion.

[0011] By offsetting the hinge point from the axis of the upright and arranging it on the side of the upper and lower bushings, the lever arm distance between the hinge point and the locking point can be increased, preventing the upright from swaying radially during use. It also converts the bending moment borne by the upper and lower uprights into tensile and compressive stress, preventing deformation of the hinge point due to long-term use of the upper and lower uprights.

[0012] Preferably, the contact surface between the upper and lower bushings is the cross-section of the entire upright. The contact surface includes an inclined surface corresponding to the area between the upper and lower uprights and a horizontal surface corresponding to the area between the upper and lower protrusions. The inclined surface gradually rises from the side closer to the hinge to the side farther away from the hinge.

[0013] Designing the contact surfaces of the upper and lower bushings as a composite plane formed by a combination of an inclined surface and a horizontal surface, with the inclined surface gradually rising from the hinge to the opposite side, allows the inclined surface to generate a radial component force when locked, thereby increasing the preload of the threaded section of the screw knob and preventing the screw knob from loosening.

[0014] Preferably, the upper and lower bushings are provided with an upper through hole and a lower through hole at the ends away from the hinge. The upper and lower through holes are combined to form a main through hole with a circular cross-section. The upper and lower protrusions are located outside the through hole and form a lip-shaped structure. A threaded seat is provided between the upper and lower through holes, and a threaded hole for forming the hole is provided in the threaded seat.

[0015] The lip-shaped structure forms reinforcing ribs, thereby improving the overall bending stiffness and resistance to rotational displacement of the upright.

[0016] The threaded seat can be located in the upper through hole; it can also be located in the lower through hole; or it can be composed of two semi-circular structures respectively located at the openings of the upper and lower through holes.

[0017] Preferably, an elastic element is provided between the outer surface of the threaded seat and the inner surface of the cover.

[0018] The preload between the threaded section and the threaded hole of the screw knob is further increased by the added elastic element, and assistance is provided when removing the cover.

[0019] Preferably, the axis of the enclosed structure is perpendicular to the axis of the entire upright, the outer edge of the cross-section of the enclosed structure can be rectangular, rhomboid or circular, and the inner surface of the cover has the same shape as the outer surface of the enclosed structure.

[0020] Preferably, the enclosed structure has an annular cross-section and its outer circumferential surface is a cone. The diameter of the enclosed structure gradually decreases along the axis from the inner side of the upright to the outer side of the upright, thereby reducing the friction between the cover and the enclosed structure and making it easier to disassemble the cover.

[0021] Preferably, the outer sides of the upper and lower bushings are provided with protective barriers coaxial with the enclosing structure. The inner diameter of the protective barriers is larger than the diameter of the cover, thereby protecting the circumferential side of the cover.

[0022] Preferably, reinforcing ribs are provided between the protective fence and the enclosed structure to improve the structural strength of the protective fence.

[0023] Preferably, the hinge portion of the upper bushing and the lower bushing is a double-ear structure and a single-ear structure embedded inside the double-ear structure, respectively, and the double-ear structure is provided with a blocking portion for limiting the single-ear structure.

[0024] By setting a blocking part to obstruct the single-ear structure and limiting the end point of the rotation stroke of the single-ear structure, over-rotation is prevented when the upper and lower bushings are folded relative to each other.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] By creating a nested structure between the cover and the protrusion, the entire upright is kept in a supported state. The structural strength of the nested structure, along with the synergistic force of the threaded knob and the inclined surface, prevents the upright from wobbling during use. This requires the user to perform a specific screw knob operation to unlock the cover, preventing accidental folding of the upright and eliminating the possibility of spontaneous unlocking during riding, thus ensuring both folding convenience and safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a folding scooter according to the present invention;

[0028] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0030] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the upper upright pole in this utility model;

[0032] Figure 6 This is a schematic diagram of the lower upright pole in this utility model;

[0033] Figure 7 This is an exploded structural diagram of the lower upright pole in this utility model.

[0034] Reference numerals: 1. Overall upright; 10. Upper upright; 11. Upper bushing; 12. Upper protrusion; 13. Upper through hole; 14. Threaded seat; 141. Threaded hole; 15. Cover; 16. Screw knob; 17. Threaded section; 18. Thrust spring; 19. Enclosed structure; 191. Conical surface; 20. Lower upright; 21. Lower bushing; 22. Lower protrusion; 23. Lower through hole; 24. Abutment surface; 241. Sloping surface; 242. Horizontal surface; 31. Hinge; 32. Blocking part; 33. Lateral opening; 34. Protective enclosure; 35. Reinforcing rib; 4. Slide plate; 5. Drive wheel. Detailed Implementation

[0035] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 7As shown, this embodiment discloses a folding scooter, including a slab 1 formed by a pivot connection between an upper slab 10 and a lower slab 20. A skateboard 4 for driving the scooter is provided on the lower side of the lower slab 20. A drive wheel 5 is provided on the lower side of the lower slab 20 and on the lower side of the skateboard 4 away from the lower slab 20.

[0037] The upper shaft sleeve 11 and the lower shaft sleeve 21 are respectively fitted at the connecting ends of the upper upright 10 and the lower upright 20. The upper shaft sleeve 11 and the lower shaft sleeve 21 are provided with a hinge part 31 that cooperates with each other on the same radial side. The upper protrusion 12 and the lower protrusion 22 are located on the opposite side of the hinge part 31. The two are arranged opposite each other and combined to form an enclosed structure 19. The structure has a through hole in the middle. A screw knob 16 is threaded in the hole. A cover 15 is fitted on the outside of the enclosed structure 19. The threaded section 17 of the screw knob 16 passes through the cover 15 and clamps and fixes the cover 15 to the outside of the enclosed structure 19 by tightening, thereby realizing the locking of the folding joint.

[0038] Both the upper bushing 11 and the lower bushing 21 have a lateral opening 33, and the lateral opening 33 is provided with a fastening bolt (not shown in the figure) arranged in the tangential direction. The fastening bolt is threadedly engaged with the upper bushing 11 and the lower bushing 21 to reduce the inner diameter of the upper bushing 11 and the lower bushing 21, thereby achieving thread locking, so that the upper bushing 11 and the lower bushing 21 are respectively fitted onto the connecting ends of the upper upright 10 and the lower upright 20.

[0039] The axis of the enclosed structure 19 is perpendicular to the axis of the upright whole 1. Its cross-section is annular, and its outer circumferential surface is a conical surface 191. The diameter of the conical surface 191 gradually decreases from the inner side near the upright whole 1 to the outer side. The inner surface shape of the cover 15 matches the conical surface 191 of the enclosed structure 19. Therefore, during the assembly / locking of the enclosed structure 19 through the cover 15, compared with U-shaped covers or other shaped covers, there is no need to distinguish the installation direction when inserting, which makes it easier for users to assemble and lock.

[0040] The contact surface 24 between the upper bushing 11 and the lower bushing 21 is the cross-section of the entire upright 1. The cross-section includes an inclined surface 241 corresponding to the axial projection range between the upper upright 10 and the lower upright 20, and a horizontal surface 242 corresponding to the axial projection range between the upper protrusion 12 and the lower protrusion 22. The inclined surface 241 gradually rises from the hinge 31 side to the opposite side, so that a radial component force is generated during the locking process, which enhances the thread preload effect and prevents the screw knob 16 from loosening.

[0041] The upper bushing 11 and the lower bushing 21 have an upper through hole 13 and a lower through hole 23 respectively at the end away from the hinge part 31. The two fit together to form a main through hole with a full circular cross-section. A threaded seat 14 is provided in the lower through hole 23. A threaded hole 141 for mating with the screw knob 16 is provided in the center of the threaded seat 14. The threaded hole 141 is the hole for mating with the threaded section 17 of the screw knob 16. The upper protrusion 12 and the lower protrusion 22 are located outside the main through hole, forming a lip-shaped reinforcing structure, which further improves the cross-sectional bending stiffness and over-rotation resistance.

[0042] A countersunk groove is formed between the end of the threaded seat 14 away from the axis of the upright 1 and the opening of the main through hole. An elastic element, namely a thrust spring 18, is provided between the end of the threaded seat 14 away from the axis of the upright 1 and the cover 15 to increase the preload of the screw knob 16 and provide assistance for disassembling the cover 15.

[0043] The upper bushing 11 and the lower bushing 21 are provided with a protective enclosure 34 coaxial with the enclosure structure 19. Its inner diameter is larger than the outer diameter of the cover 15, which is used to protect the circumferential side of the cover 15.

[0044] A reinforcing rib 35 can be installed between the protective fence 34 and the enclosed structure 19 to improve the structural strength.

[0045] The hinge part 31 can be in the form of a combination of a double-ear structure and a single-ear structure. The hinge part 31 of the lower bushing 21 is a double-ear structure, and the hinge part 31 of the upper bushing 11 is a single-ear structure. The inner side of the double-ear structure is provided with a limiting stop part 32 to limit the rotation stroke of the single-ear structure and prevent over-rotation during folding.

[0046] When the scooter needs to be folded, the user loosens the screw knob 16 to disengage it from the enclosure structure 19. At this time, the cover 15 moves away from the upright 1 under the elastic force of the thrust spring 18. The cover 15 is removed, and the cover 15 disengages from the enclosure structure 19. The upper protrusion 12 and the lower protrusion 22 are no longer restricted by the cover 15, thereby releasing the constraint between the upper protrusion 12 and the lower protrusion 22. At this time, the upper upright 10 can be manually rotated relative to the hinge point of the hinge part 31 towards the user's position to achieve folding and storage. The nested locking mechanism formed by the cover 15, the upper protrusion 12, and the lower protrusion 22 keeps the upright 1 stable in the unfolded state and unlocks quickly when folded and stored, effectively preventing spontaneous unlocking during use, and balancing operational convenience and driving safety.

Claims

1. A folding scooter comprising a whole stand formed by the opposite pivot connection of an upper stand rod and a lower stand rod, the lower stand rod being provided with a skateboard at the lower side for driving the whole vehicle to move, characterized in that: The lower end of the upper upright and the upper end of the lower upright are respectively provided with an upper protrusion and a lower protrusion extending in the same radial direction. The upper and lower protrusions are arranged opposite to each other. The upper and lower protrusions are combined to form an enclosed structure with an inner hole. A screw knob is threaded into the hole. A cover is fitted on the outside of the enclosed structure. The screw knob passes through the cover through its own threaded section and clamps and fixes the cover to the outside of the enclosed structure through the thread.

2. The foldable scooter of claim 1, wherein: The lower end of the upper upright and the upper end of the lower upright are respectively fitted with an upper bushing and a lower bushing. The upper bushing and the lower bushing are provided with a hinge on the same radial side. The upper protrusion and the lower protrusion are respectively provided on the side of the upper upright and the lower upright opposite to the hinge.

3. The foldable scooter of claim 2, wherein: The contact surface between the upper and lower bushings is the cross-section of the entire upright. The contact surface includes an inclined surface corresponding to the upper and lower uprights and a horizontal surface corresponding to the upper and lower protrusions. The inclined surface gradually rises from the side closer to the hinge to the side farther away from the hinge.

4. A folding scooter as claimed in claim 2 or 3, characterized in that: The upper and lower bushings are provided with an upper through hole and a lower through hole at the ends away from the hinge. The upper and lower through holes are combined to form a main through hole with a circular cross-section. The upper and lower protrusions are located outside the through hole and form a lip-shaped structure. A threaded seat is provided between the upper and lower through holes, and a threaded hole for forming the hole is provided in the threaded seat.

5. The foldable scooter of claim 4, wherein: An elastic element is provided between the outer surface of the threaded seat and the inner surface of the cover.

6. The foldable scooter of claim 5, wherein: The axis of the enclosed structure is perpendicular to the axis of the entire upright. The outer edge of the cross-section of the enclosed structure can be rectangular, rhomboid, or circular. The inner surface of the cover has the same shape as the outer surface of the enclosed structure.

7. The foldable scooter of claim 6, wherein: The enclosed structure has an annular cross-section and its outer circumferential surface is a cone. The diameter of the enclosed structure gradually decreases along the axis from the inner side of the upright to the outer side of the upright.

8. The foldable scooter of claim 7, wherein: The upper and lower bushings are provided with protective barriers on their outer sides, which are coaxial with the enclosed structure. The inner diameter of the protective barriers is larger than the diameter of the cover.

9. The foldable scooter of claim 8, wherein: The protective fence and the enclosed structure are provided with reinforcing ribs.

10. The foldable scooter of claim 9, wherein: The hinge portion of the upper bushing and the lower bushing is a double-ear structure and a single-ear structure embedded inside the double-ear structure, respectively. The double-ear structure is provided with a blocking part for limiting the position of the single-ear structure.

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