Electric two-wheeled vehicle and its flip-up and removable seat

By designing a flip-up and detachable seat structure on the electric two-wheeler, the problem of difficult battery placement and removal has been solved, increasing battery space and seat stability, making it suitable for replacing and assembling larger batteries.

CN224427646UActive Publication Date: 2026-06-30ZHEJIANG YADEA MOTORCYCLE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YADEA MOTORCYCLE
Filing Date
2025-08-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional electric two-wheelers have non-removable seat cushions, which cause interference between the battery and the seat cushion when the battery is removed, taking up space and affecting the placement and removal of the battery.

Method used

Design a flip-up and detachable seat structure that achieves a detachable connection between the seat and the frame through a rotating connection structure and a locking structure, including a rotating component and a locking structure, allowing the seat to be flipped up or completely removed when needed.

Benefits of technology

The increased space for battery access solves the problem of difficulty in battery access, and maintains the stability of the seat cushion during use without affecting normal use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a flip-up and detachable seat cushion, including a frame, a seat cushion mounted on the frame, and a rotating connection structure and a locking structure between the seat cushion and the frame. The rotating connection structure includes: a rotating assembly located on the side of the seat cushion facing the frame, and a rocker arm located on the side of the frame facing the seat cushion. The rotating assembly has an open structure, and the open end of the rotating assembly fits onto the rocker arm, rotating around the rocker arm. The open end of the rotating assembly also allows the rocker arm to disengage. The locking structure includes: a latch installed on the side of the seat cushion facing the frame; and a locking plate located on the frame, cooperating with the latch to lock. This utility model's flip-up and detachable seat cushion increases the space above the footrests, and the space freed up by flipping and removing the seat cushion allows for easy access to large batteries from inside the frame.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle assembly structure technology, and in particular to an electric two-wheeled vehicle and its flip-out detachable seat cushion. Background Technology

[0002] In electric vehicles (two-wheeled), when the battery placed in the foot pedal or seat compartment needs to be removed, the battery interferes with the seat cushion. Traditional seat cushions can only be flipped up, not removed, and the seat cushion occupies the space above the foot pedal or seat compartment, making it impossible to remove the battery. Utility Model Content

[0003] In response to the shortcomings of the existing production technology, the applicant provides an electric two-wheeled vehicle and its flip-out detachable seat cushion. The seat cushion and the vehicle body can rotate relative to each other to meet daily storage needs, and can also be detached to facilitate the removal and placement of the battery.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A flip-up and detachable seat cushion includes a frame, a seat cushion mounted on the frame, and a rotatable connection structure and a locking structure between the seat cushion and the frame.

[0006] The rotating connection structure includes:

[0007] The rotating assembly is located on the side of the seat facing the frame.

[0008] The rocker arm is located on the side of the frame facing the seat.

[0009] The rotating assembly has an open structure, with the opening fitted onto the rocker arm and rotating around it; the opening of the rotating assembly also allows the rocker arm to disengage.

[0010] The locking structure includes:

[0011] The latch is installed on the side of the seat facing the frame.

[0012] The locking plate, located on the frame, works with the latch to lock.

[0013] As a further improvement to the above technical solution:

[0014] The rotating assembly is located at the end of the seat near the front of the vehicle, and the locking mechanism is located at the end of the seat near the rear of the vehicle.

[0015] The rotating assembly includes:

[0016] The base plate is connected to the seat cushion.

[0017] The first bend is located in the middle of the substrate.

[0018] The second bend is located on both sides of the first bend.

[0019] The second bend is an open part, and the rocker arm rests in the open space of the second bend.

[0020] When assembled, the rocker arm abuts against the inner wall of the second bend.

[0021] When assembled, the first bent part is pressed onto the side of the rocker arm that is away from the ground.

[0022] The distance between the bending point of the second bend and the substrate is greater than the height of the first bend protruding from the substrate.

[0023] The locking hook has a closed ring structure, and the relative position of the locking hook and the seat cushion is constant.

[0024] The seat cushion has a limiting block on the side facing the frame, and the limiting block abuts against the frame.

[0025] The frame is provided with a front support plate and a rear support plate, with some limiting blocks in contact with the front support plate and some support plates in contact with the rear support plate.

[0026] An electric two-wheeled vehicle with the aforementioned retractable seat cushion.

[0027] The beneficial effects of this utility model are as follows:

[0028] This invention designs a flip-up and detachable seat cushion that increases the space above the footrests. When a large battery is placed in the footrest or seat compartment and needs to be removed, the battery may interfere with the seat cushion, making it difficult to put in or take out. In this case, if the seat cushion can be flipped up and detached to make room, this problem can be solved.

[0029] The flip-up structure and the detachable structure in this utility model work together. During installation, the rotating component on the seat cushion is first rotated in conjunction with the rocker arm. After the locking hook on the seat cushion is engaged with the locking plate, the rotating component is also fully limited. At this time, the stability of the seat cushion is guaranteed and it will not move during use.

[0030] When it is necessary to remove or insert the battery, the entire seat cushion can be removed to increase the space above the battery and reduce local interference, which is suitable for replacing and assembling large batteries. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the vehicle frame structure for this application.

[0032] Figure 2 This is a schematic diagram of the seat cushion structure of this utility model.

[0033] Figure 3 This is a schematic diagram of the rotating component structure of this utility model.

[0034] Figure 4 This is a schematic diagram of the assembly of the vehicle frame and seat cushion according to this utility model.

[0035] Figure 5 for Figure 4 The enlarged view of part A is used to illustrate the locking hook's mating structure.

[0036] Figure 6 for Figure 4 The enlarged view of part B is used to illustrate the mating structure of the rotating assembly.

[0037] Figure 7 This is a cross-sectional view showing the interaction between the rotating component and the rocker arm in this utility model.

[0038] The components include: 1. frame; 2. seat; 3. rotating assembly; 4. front support plate; 5. rear support plate.

[0039] 101. Locking plate; 102. Rocker arm holder; 103. Rocker arm;

[0040] 201. Locking hook; 202. Limiting block;

[0041] 301, First bend; 302, Second bend; 303, Substrate. Detailed Implementation

[0042] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0043] like Figures 1-7 As shown, the flip-out detachable seat cushion of this embodiment includes a frame 1, a seat cushion 2 mounted on the frame 1, and a rotatable connection structure and a locking structure between the seat cushion 2 and the frame 1.

[0044] The rotating connection structure includes:

[0045] Rotating component 3 is located on the side of seat 2 facing frame 1.

[0046] Rocker arm 103 is located on the side of the frame 1 facing the seat 2.

[0047] The rotating component 3 has an open structure, and the open end of the rotating component 3 is fitted onto the rocker arm 103 and rotates around the rocker arm 103; the open end of the rotating component 3 is also used to allow the rocker arm 103 to disengage.

[0048] The locking structure includes:

[0049] The latch is installed on the side of the seat 2 facing the frame 1.

[0050] Lock plate 101 is located on frame 1 and is locked in conjunction with the lock buckle.

[0051] The rotating component 3 is located at the end of the seat cushion 2 near the front of the vehicle, and the locking structure is located at the end of the seat cushion 2 near the rear of the vehicle.

[0052] Rotating assembly 3 includes:

[0053] The substrate 303 is connected to the seat 2.

[0054] The first bend 301 is located in the middle of the substrate 303.

[0055] The second bend 302 is located on both sides of the first bend 301.

[0056] The second bend 302 is an open part, and the rocker arm 103 falls in the open space of the second bend 302.

[0057] When assembled, the rocker arm 103 abuts against the inner wall of the second bend 302.

[0058] When assembled, the first bent part 301 is pressed onto the side of the rocker arm 103 away from the ground.

[0059] The distance between the bending point of the second bending portion 302 and the substrate 303 is greater than the height of the first bending portion 301 protruding from the substrate 303.

[0060] The locking hook 201 is a closed ring structure, and the relative position of the locking hook 201 and the seat cushion 2 is constant.

[0061] The seat cushion 2 has a limiting block 202 on the side facing the frame 1, and the limiting block 202 abuts against the frame 1.

[0062] The frame 1 is provided with a front support plate 4 and a rear support plate 5. Part of the limiting block 202 is in contact with the front support plate 4, and part of the support plate is in contact with the rear support plate 5.

[0063] The electric two-wheeled vehicle of this embodiment has a reversible and detachable seat 2 as described above.

[0064] The specific structure and working principle of this utility model are as follows:

[0065] like Figure 1 The diagram shows a schematic of the frame 1 of this application. The battery is located at the center of the frame 1, near the rear seat, where the seat cushion 2 is mounted. Figure 4 As shown. If needed, Figure 4 If the large battery is removed from the frame 1, it will interfere with the seat cushion 2, affecting the removal and placement of the battery.

[0066] This application provides a flip-up, removable seat cushion 2 that can rotate around a frame 1 and be detached from the frame 1, such as... Figure 2The diagram shows a schematic of the seat cushion 2. A rotating assembly 3 is located on the bottom surface of the seat cushion 2, near the front of the vehicle. A locking hook 201 is located on the bottom wall of the seat cushion 2 near the rear of the vehicle. The relative position between the locking hook 201 and the seat cushion 2 remains constant, and the locking hook 201 is a closed ring structure. Multiple limiting blocks 202 are provided around the bottom surface of the seat cushion 2. In this embodiment, four limiting blocks 202 are provided on the bottom wall of the seat cushion 2, located at the four apex corners of a rectangle. The function of the limiting blocks 202 is to abut against the frame 1, restricting the downward freedom of the seat cushion 2. In one embodiment of this application, the limiting blocks 202 are circular rubber blocks. The frame 1 has a front support plate and a rear support plate. The limiting blocks 202, in the assembled state, press against the front support plate 4 and the rear support plate 5.

[0067] Reference Figure 2 , Figure 4 , Figure 5 The locking hook 201 is an inverted trapezoidal closed ring. A locking plate 101 is provided on the rear support plate 5 of the frame 1. The locking plate 101 can be a commercially available part. When the locking hook 201 is pressed onto the locking plate 101, the locking hook 201 engages with the locking plate 101, achieving a limiting position. When it is necessary to release the locking hook 201, the limiting position of the locking hook 201 can be removed by opening the locking plate 101. In this embodiment, how the locking plate 101 locks and releases will not be described separately.

[0068] To facilitate the explanation of the special structure of the rotating component 3, combined with Figure 3 , Figure 4 , Figure 6 and Figure 7 Please provide an explanation.

[0069] The structure of rotating component 3 is as follows Figure 3 As shown, the system includes a base plate 303 mounted on the bottom surface of the seat cushion 2, a first bent portion 301 located on the base plate 303, and second bent portions 302 located on the base plate 303 and on both sides of the first bent portion 301. The first bent portion 301 is a closed structure, located in the middle of the base plate 303, essentially protruding from the middle of the base plate 303. The two second bent portions 302 are symmetrically arranged on both sides of the first bent portion 301, and the second bent portions 302 are open structures, forming an "L" shape, with the openings of the second bent portions 302 facing the front of the vehicle.

[0070] The front support plate 4 of the frame 1 is provided with, for example Figure 6 The rocker arm seat 102 shown has a rocker arm 103 mounted on it, which engages with the rotating assembly 3. The rocker arm seat 102 has a flange formed by bending around its perimeter, giving it a certain degree of coverage.

[0071] When the rotating assembly 3 mates with the structure on the frame 1, such as Figure 7As shown in the diagram, according to the orientation, the first bend 301 presses down on the rocker arm 103, and the second bend 302 supports the rocker arm 103 from below. The second bend 302 falls within the enclosure of the rocker arm seat 102, and the edge height of the rocker arm seat 102 is not lower than the vertical height of the second bend 302. At this time, the upper part of the rocker arm 103 is pressed down by the first bend 301, the lower part is supported by the horizontal section of the second bend 302, and the side near the rear of the vehicle is supported by the vertical section of the second bend. The rocker arm 103 abuts against the corner of the second bend and is subject to the downward limiting force of the first bend 301, ensuring a tight fit between the rotating assembly 3 and the rocker arm 103 and preventing it from shifting.

[0072] When installing the seat cushion 2, insert the rotating component 3 of the seat cushion 2 into the rocker arm 103, and the seat cushion 2 rotates around the rocker arm 103; when the rotation reaches the point where the locking hook 201 is pressed into the locking plate 101, the locking plate 101 locks the locking hook 201, and the entire seat cushion 2 is completely limited.

[0073] The downward freedom of the seat cushion 2 is achieved by two circular rubber blocks 202 mounted on the left and right sides, which abut against the front support plate 4; the other two circular rubber blocks 202 abut against the rear support plate 5.

[0074] The upward freedom of the seat cushion 2 is restricted by the rotating component 3 at the front of the seat cushion 2 hooking the rocker arm 103, and the locking plate 101 at the rear of the seat cushion 2 locking the locking hook 201.

[0075] The forward freedom of the seat cushion 2 is restricted by the rotating component 3 at the front of the seat cushion 2 against the rocker arm 103.

[0076] The rearward freedom of the seat cushion 2 is restricted by the locking hook 201 abutting against the rear support plate on the frame 1.

[0077] The left and right freedom of the seat cushion 2 is restricted by the rotating component 3 at the front of the seat cushion abutting against the rocker arm seat 102, and the locking hook 201 at the rear abutting against the rear support plate.

[0078] When removing the seat cushion 2, first open the lock plate 101. After the lock hook 201 pops out of the lock plate 101, lift the seat cushion 2 and rotate it along the rocker arm 103. Rotate it until the opening of the second bend 302 changes from facing the front of the vehicle to facing the ground. At this time, lift the seat cushion 2 upwards so that the second bend 302 can be separated from the rocker arm 103. The space on the frame 1 becomes larger, and there is room to smoothly remove the large battery from the vehicle.

[0079] The advantage of this application is that the seat cushion 2 can be directly removed from the frame 1 without the need for other parts to be removed. The overall structure utilizes multiple limiting surfaces to constrain each other, providing a stable, reliable, easy-to-disassemble, and non-affecting detachable structure.

[0080] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A reversible detachable seat cushion comprising a frame (1) having a seat cushion (2) attached thereto, characterised in that: A rotating connection structure and a locking structure are provided between the seat cushion (2) and the frame (1). The rotating connection structure includes: The rotating assembly (3) is located on the side of the seat cushion (2) facing the frame (1). The rocker arm (103) is located on the side of the frame (1) facing the seat (2). The rotating assembly (3) has an open structure. The open end of the rotating assembly (3) is fitted onto the rocker arm (103) and rotates around the rocker arm (103). The open end of the rotating assembly (3) is also used to allow the rocker arm (103) to disengage. The locking structure includes: The latch is installed on the side of the seat (2) facing the frame (1). The locking plate (101) is located on the frame (1) and is locked in conjunction with the latch.

2. The reversible, detachable seat cushion of claim 1, wherein: The rotating component (3) is located at the end of the seat (2) near the front of the vehicle, and the locking structure is located at the end of the seat (2) near the rear of the vehicle.

3. The reversible and detachable seat cushion as described in claim 1, characterized in that: The rotating assembly (3) includes: The substrate (303) is connected to the seat cushion (2). The first bend (301) is located in the middle of the substrate (303). The second bend (302) is located on both sides of the first bend (301). The second bend (302) is an open part, and the rocker arm (103) falls in the open space of the second bend (302).

4. The reversible and detachable seat cushion as described in claim 3, characterized in that: When assembled, the rocker arm (103) abuts against the inner wall of the second bend (302).

5. The reversible and detachable seat cushion as described in claim 3, characterized in that: When assembled, the first bent part (301) is pressed onto the rocker arm (103) on the side away from the ground.

6. The reversible and detachable seat cushion as described in claim 3, characterized in that: The distance between the bending point of the second bending portion (302) and the substrate (303) is greater than the height of the first bending portion (301) protruding from the substrate (303).

7. The reversible and detachable seat cushion as described in claim 1, characterized in that: The locking hook (201) is a closed ring structure, and the relative position of the locking hook (201) and the seat cushion (2) is constant.

8. The reversible and detachable seat cushion as described in claim 1, characterized in that: The seat cushion (2) has a limiting block (202) on the side facing the frame (1), and the limiting block (202) abuts against the frame (1).

9. The reversible and detachable seat cushion as described in claim 8, characterized in that: The frame (1) is provided with a front support plate (4) and a rear support plate (5). Part of the limiting block (202) is in contact with the front support plate (4), and part of the support plate is in contact with the rear support plate (5).

10. An electric two-wheeled vehicle with a reversible and detachable seat cushion (2) as described in any one of claims 1-9.