Seat folding mechanism and foldable scooter

Abstract

The utility model discloses a seat folding mechanism and a foldable scooter, the seat folding mechanism comprises a connecting piece, a seat, a folding support and a locking mechanism, a locking hole is formed in the connecting piece, one end of the folding support is rotatably arranged on the connecting piece, and the other end of the folding support is rotatably arranged on the seat; the locking mechanism is arranged at the two ends of the folding support and comprises a locking pin, the locking pin is arranged on the folding support in a sliding mode, a first reset spring is arranged on the locking pin in a sleeved mode, and the locking pin is used for being matched with the locking hole to achieve locking of the folding support. The unlocking wrench is rotationally arranged on the folding bracket, and the folding bracket can be unlocked by pulling the unlocking wrench; the auxiliary limiting piece is rotationally arranged on the connecting piece, a second reset spring is fixed to the auxiliary limiting piece, and the auxiliary limiting piece is used for blocking the locking hole when the locking pin is separated from the locking hole; after the unlocking wrench is wrenched, the seat can be folded after entering a storage state, and when the seat is folded, the seat can be unfolded and locked again after being pulled.

Description

Technical Field

[0001] This application relates to the technical field of mobility scooters, and particularly to a seat folding mechanism and a foldable mobility scooter. Background Art

[0002] With the acceleration of the urbanization process and the diversification of people's travel needs, mobility scooters, as a convenient and flexible means of transportation, have been widely used in the market. Among them, foldable mobility scooters are particularly favored by users because of their portability and space-saving features. However, existing foldable mobility scooters often have problems such as complex seat folding mechanisms, inconvenient operation, and unstable locking, which not only affect the user experience but also increase the safety hazards of the vehicle.

[0003] Based on this, this application aims to simplify the folding steps while taking into account the stability after locking and the maximized folding effect.

[0004] The above content is only used to assist in understanding the technical solution of this application, and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides a seat folding mechanism and a foldable mobility scooter to solve one of the above technical problems.

[0006] The technical solution adopted by this application to solve its technical problems is as follows: In the first aspect, this application provides a seat folding mechanism, including: a connecting piece, a seat, a folding bracket, and a locking mechanism. A locking hole is provided on the connecting piece. One end of the folding bracket is rotatably connected to the connecting piece, and the other end is rotatably connected to the seat. The locking mechanism is arranged at both ends of the folding bracket and includes: a locking pin that slides on the folding bracket and is sleeved with a first return spring, and the locking pin is used to cooperate with the locking hole to lock the folding bracket; an unlocking wrench that rotates on the folding bracket, and the folding bracket can be unlocked by pulling the unlocking wrench; an auxiliary limiting member that rotates on the connecting piece and is fixed with a second return spring, which is used to block the locking hole when the locking pin disengages from the locking hole. After pulling the unlocking wrench, the seat can be folded into the storage state, and in the folded state, pulling the seat can re-expand and lock it.

[0007] In some embodiments, an opening groove is provided on one side of the locking hole, and the auxiliary limiting member rotates in the opening groove and partially protrudes from the opening groove.

[0008] In some embodiments, a positioning convex block is formed on the auxiliary limiting member, a positioning column is formed on the connecting piece, and both ends of the second return spring are respectively sleeved on the positioning convex block and the positioning column.

[0009] In some embodiments, a torsion spring is fixed to the unlocking wrench, and a driving portion is formed at the end of the unlocking wrench for directly contacting the locking pin and driving it out of the locking hole.

[0010] In some embodiments, a mounting seat is formed on the folding bracket, the locking pin passes through the mounting seat and slides thereon, and one end of the first return spring is fixed to the mounting seat.

[0011] In some embodiments, a limiting plate is fixed to the locking pin.

[0012] In some embodiments, a backrest is rotatably provided on the seat, and a locking mechanism is slidably provided on the backrest. The locking mechanism includes: a fixing member fixed to the backrest and having a sliding groove formed therein; a locking switch slidable in the sliding groove for locking or unlocking the backrest.

[0013] In some embodiments, a locking portion is formed on the seat, and sliding the locking switch into the locking portion can lock the backrest.

[0014] In some embodiments, a pair of flip-up armrests are provided on the backrest.

[0015] In a second aspect, the present utility model provides a foldable scooter, which includes a vehicle body and a foldable vehicle head. The seat folding mechanism according to any one of the first aspect is installed on the vehicle body, and mounting holes are formed on both sides of the vehicle body, and the connecting member is fixed in the mounting holes.

[0016] The beneficial effects of the present application are as follows: By simply pulling the unlocking wrench, the locking pin can be disengaged from the locking hole to reach the storage state. At the same time, the unlocking wrench is reset under the action of the torsion spring, and the auxiliary limiting member rotates under the action of the second limiting spring and blocks the locking hole. At this time, the folding bracket can be freely rotated to store the seat, and the backrest and armrests can also be folded adaptively. In the folded state, by pulling upward, the folding bracket rotates, the locking pin abuts against the auxiliary limiting member and pushes it back into the opening groove again. Under the action of the first return spring, the locking pin enters the locking hole to achieve locking. The structure of the present application is simple, the effect is remarkable, and the operation is convenient. The vehicle head, seat, armrests, and backrest can all be folded, and the folding rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1It is a schematic diagram of the connection of the folding bracket of this application.

[0019] Figure 2 It is a schematic diagram of a partial cross-section of the folding bracket of this application.

[0020] Figure 3 It is a three-dimensional schematic diagram of the scooter of this application.

[0021] Figure 4 It is a schematic diagram of the folded state of the scooter of this application.

[0022] Figure 5 It is a schematic diagram of the folded state of the folding bracket of this application.

[0023] Figure 6 It is a schematic diagram of the connecting member of this application.

[0024] Figure 7 It is a schematic diagram of the seat of this application.

[0025] Figure 8 It is a schematic diagram of the structure of the locking mechanism of this application.

[0026] Explanation of the reference numerals in the drawings: 1. Backrest, 2. Seat, 21. Locking part, 3. Folding bracket, 31. Connecting part, 311. Mounting seat, 4. Locking mechanism, 41. Locking pin, 411. Limiting plate, 42. Unlocking wrench, 421. Driving part, 43. Auxiliary limiting member, 431. Positioning convex block, 5. First return spring, 6. Second return spring, 7. Opening groove, 8. Connecting member, 81. Positioning column, 9. Locking mechanism, 91. Fixed part, 92. Locking switch, 10. Armrest, 11. Vehicle body, 12. Front head, 13. Mounting hole, 14. Torsion spring, 15. Locking hole, 16. Sliding groove, 17. Positioning groove. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of the technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of this application.

[0028] In the embodiments of this application, please refer to Figure 1-8As shown, a seat folding mechanism and a foldable scooter mainly include: a connecting member 8, a seat 2, a folding bracket 3, and a locking mechanism 4. A locking hole 15 is provided on the connecting member 8. One end of the folding bracket 3 is rotatably connected to the connecting member 8, and the other end is rotatably connected to the seat 2. The locking mechanism 4 is disposed at both ends of the folding bracket 3 and includes: a locking pin 41 that slides on the folding bracket 3 and is sleeved with a first return spring 5. The locking pin 41 is used to cooperate with the locking hole 15 to lock the folding bracket 3; an unlocking wrench 42 that rotates on the folding bracket 3. By pulling the unlocking wrench 42, the folding bracket 3 can be unlocked; an auxiliary limiting member 43 that rotates on the connecting member 8 and is fixed with a second return spring 6, which is used to block the locking hole 15 when the locking pin 41 disengages from the locking hole 15. After pulling the unlocking wrench 42, it enters the storage state, and the seat 2 can be folded. In the folded state, pulling the seat 2 can re-expand and lock it.

[0029] Next, some preferred / improved embodiments based on the above embodiments will be further described. Any one or a combination of multiple of the following embodiments can be selected.

[0030] As Figure 6 shown, an opening groove 7 is provided on one side of the locking hole 15. The auxiliary limiting member 43 rotates in the opening groove 7 and part of it protrudes from the opening groove 7. Therefore, when the folding bracket 3 is rotated in the folded state, the locking pin 41 will drive the auxiliary limiting member 43 to rotate into the opening groove 7, and the locking pin 41 re-enters the locking hole 15 to achieve locking.

[0031] As Figure 2 shown, a positioning convex block 431 is formed on the auxiliary limiting member 43, and a positioning post 81 is formed on the connecting member 8. Both ends of the second return spring 6 are respectively sleeved on the positioning convex block 431 and the positioning post 81. The second return spring 6 is used to drive the auxiliary limiting member 43 to immediately rotate to block the locking hole 15 when the unlocking wrench 42 drives the locking pin 41 to disengage from the locking hole 15, maintaining the storage state. Just pulling the unlocking wrench 42 can also achieve storage, which is simple and convenient to operate. A positioning card slot is formed at the end of the auxiliary limiting member 43, which is used to limit the position where the locking pin 41 contacts the auxiliary positioning member after pulling the unlocking wrench 42, and plays a role in restricting the one-way rotation of the folding bracket 3.

[0032] Furthermore, a mounting seat 311 is formed on the folding bracket 3. The locking pin 41 passes through the mounting seat 311 and slides thereon. One end of the first return spring 5 is fixed on the mounting seat 311.

[0033] Specifically, connection parts 31 are installed at both ends of the folding bracket 3, and the mounting seats 311 are fixed on the connection parts 31. As Figure 5 described, positioning grooves 17 are formed thereon, and the locking pins 41 slide in the positioning grooves 17.

[0034] Specifically, a limiting plate 411 is fixed on the locking pin 41 to prevent the locking pin 41 from detaching from the folding bracket 3.

[0035] As Figure 1 shown, a torsion spring 14 is fixed on the unlocking wrench 42 for driving the unlocking wrench 42 to reset. A driving part 421 is formed at the end of the unlocking wrench 42 for directly contacting the locking pin 41 and driving it to disengage from the locking hole 15.

[0036] As Figure 7-8 shown, a backrest 1 is rotatably arranged on the seat 2, and a locking mechanism 9 is slidably arranged on the backrest 1. The locking mechanism 9 includes: a fixing part 91 fixed on the backrest 1, on which a sliding groove 16 is formed; a locking switch 92 sliding in the sliding groove 16 for locking or unlocking the backrest 1.

[0037] Further, a locking part 21 is formed on the seat 2. Sliding the locking switch 92 into the locking part 21 can lock the backrest 1. When the locking switch 92 slides out of the locking part 21, the seat 2 can be folded downwards.

[0038] Further, it is characterized in that a pair of flip-up armrests 10 are arranged on the backrest 1.

[0039] In a second aspect, as Figure 3-4 shown, a foldable scooter includes a vehicle body 11 and a foldable vehicle head 12. The seat 2 folding mechanism according to any one of the first aspect is installed on the vehicle body 11. Mounting holes 13 are formed on both sides of the vehicle body 11, and the connecting piece 8 is fixed in the mounting holes 13. The mounting holes 13 provide a receiving space for the folding bracket 3 after folding.

[0040] So far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present application. The foregoing embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A seat folding mechanism, comprising a connecting member, a seat, a folding bracket and a locking mechanism, characterized in that: The connecting piece is provided with a locking hole, one end of the folding bracket is rotated on the connecting piece, and the other end is rotated on the seat; The locking mechanism is arranged at both ends of the folding bracket, and includes: A locking pin, sliding on the folding bracket, on which a first return spring is sleeved, and the locking pin is used to cooperate with the locking hole to achieve locking of the folding bracket; An unlocking wrench is rotated on the folding bracket, and the folding bracket can be unlocked by turning the unlocking wrench; an auxiliary limiting member, which rotates on the connecting member and has a second return spring fixed thereon, and is used to block the locking hole when the locking pin is separated from the locking hole; By pulling the unlocking wrench, the seat enters the storage state and can be folded. In the folded state, the seat can be pulled to unfold and lock it again.

2. A seat folding mechanism according to claim 1, characterized in that: An opening slot is formed on one side of the locking hole, and the auxiliary limiting member rotates in the opening slot and is partially exposed from the opening slot.

3. A seat folding mechanism according to claim 1, characterized in that: A positioning protrusion is formed on the auxiliary limiting member, a positioning column is formed on the connecting member, and two ends of the second return spring are respectively sleeved on the positioning protrusion and the positioning column.

4. A seat folding mechanism according to claim 1, characterized in that: A torsion spring is fixed on the unlocking wrench, and a driving part is formed at the end of the unlocking wrench for directly contacting the locking pin and driving it to disengage from the locking hole.

5. The seat folding mechanism according to claim 1, characterized in that: A mounting seat is formed on the folding bracket, the locking pin penetrates the mounting seat and slides on the mounting seat, and one end of the first return spring is fixed on the mounting seat.

6. The seat folding mechanism according to claim 1, characterized in that: A limiting plate is fixed on the locking pin.

7. The seat folding mechanism according to claim 1, characterized in that: The seat is provided with a rotatable backrest, and a locking mechanism is slidably provided on the backrest, wherein the locking mechanism comprises: a fixing member fixed on the backrest and provided with a sliding groove; A locking switch slides in the slide slot and is used to lock or unlock the backrest.

8. A seat folding mechanism according to claim 7, characterized in that: A locking portion is formed on the seat, and the backrest can be locked by sliding the locking switch into the locking portion.

9. The seat folding mechanism according to claim 7, characterized in that: A pair of flippable armrests are arranged on the backrest.

10. A foldable scooter, characterized in that: The vehicle comprises a vehicle body and a foldable vehicle front, wherein the seat folding mechanism described in any one of claims 1 to 9 is installed on the vehicle body, mounting holes are provided on both sides of the vehicle body, and the connecting parts are fixed in the mounting holes.

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