Folding mechanism for electro-tricycle seat

Abstract

The utility model provides a folding mechanism for an electro-tricycle seat, which belongs to the field of electro-tricycles and comprises a front support group and a rear support group which are sequentially hinged on a chassis, and the front support group and the rear support group are linked through a support frame and used for enabling the front support group and the rear support group to rotate in the same direction. The seat is rotatably connected to the rear support set, and a locking part arranged below the seat is buckled with the front support set and used for fixing the position of the front support set and the position of the rear support set. The foldable seat has the advantages that the overall structure can be optimized, the overall weight is reduced, stable supporting of the seat is guaranteed, meanwhile, the seat can be folded, and carrying and transportation of a vehicle are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of electric tricycles, and in particular relates to a folding mechanism for the seat of an electric tricycle. Background Technology

[0002] The seats of electric tricycles are mostly fixed to the chassis, and the fixing method is relatively simple, such as connecting them to the chassis with screws and bolts. During the vehicle's operation, the screws may loosen due to vibration or impact, resulting in a decrease in seat stability.

[0003] If the seat connection is made too strong or complicated in order to enhance the stability of the seat, the tricycle will become bulky as a whole, making it inconvenient to move the vehicle and increasing the difficulty of moving it.

[0004] If you want your electric tricycle to be readily available, you can also rely on a car or other vehicle for transport, that is, put the tricycle in the trunk of a car. However, the raised seat takes up a lot of space, making it impossible to put the tricycle in the trunk of a car, which is inconvenient for parking and storage. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a folding mechanism for electric tricycle seats, which can optimize the overall structure, reduce the overall weight, ensure stable support of the seat, and also allow the seat to be folded for easy handling and transportation of the vehicle.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a folding mechanism for an electric tricycle seat, including a front support group and a rear support group that are hinged sequentially on the chassis, wherein the front support group and the rear support group are linked together by a support frame, which is used to make the front support group and the rear support group rotate in the same direction;

[0007] The seat is rotatably connected to the rear support assembly, and a locking part provided under the seat engages with the front support assembly to fix the position of the front support assembly and the position of the rear support assembly.

[0008] Furthermore, one end of the support frame is staggered at the connection point of the front support group and the other end is staggered at the connection point of the rear support group, so that the support frame is tilted to leave space for folding of the front support group and the rear support group.

[0009] Furthermore, the front support assembly includes two opposing front supports, the upper ends of which are connected by a locking shaft, and the locking part is fastened to the locking shaft.

[0010] Furthermore, the rear support assembly includes two opposing rear supports, the upper ends of which are connected by a connecting shaft, and the seat is rotatably connected to the connecting shaft.

[0011] Furthermore, a locking rod is connected to the front bracket, and the end of the locking rod is connected to the support frame through a fixing part to form a support point.

[0012] Furthermore, it includes a back frame that can rotate with the rear support assembly and handrail frames extending on both sides of the back frame. The handrails can be flipped into the concave frame of the handrail frame, and the flipping angle of the handrails is limited by the length of the limiting part extending out of the handrail.

[0013] Furthermore, the limiting part is threadedly connected to the lower end of the handrail and abuts against the inner wall of the concave frame.

[0014] Furthermore, there are two support frames, located on both sides of the front support group and the rear support group respectively, with one end of the support frame at the connection point of the front support frame being lower than the other end at the connection point of the rear support frame.

[0015] Furthermore, an elongated hole is provided at the end of the locking rod, and a positioning hole is provided on the support frame, with the fixing part passing through the elongated hole and the positioning hole.

[0016] Furthermore, both the front bracket and the rear bracket are provided with perforated holes along their outer curves.

[0017] The advantages and positive effects of this utility model are:

[0018] 1. Due to the adoption of the above technical solution, compared with the traditional seat reinforcement structure, this structure makes the bracket lighter through the design of hollow holes, and allows the seat to be laid flat on the chassis, realizing the folding of the seat, saving space and facilitating vehicle transportation.

[0019] 2. The support frame enables the front support assembly and the support assembly to work together, and also strengthens the support strength of the seat, so that the seat is stably supported. The seat is fixed by the locking part and the snap-fit ​​shaft, which simplifies the connection steps and achieves one-step connection. The setting of the locking rod provides a new connection point and support point between the front support assembly and the support frame, further enhancing the stability of the seat support.

[0020] 3. The backrest and armrests provide comfort and safety while also being easy to store. They can be folded together with the seat to lay flat on top of the seat, saving space. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection between the front support assembly and the rear support assembly of this utility model;

[0022] Figure 2 This is a schematic diagram of the back frame connection of this utility model;

[0023] Figure 3 This is a schematic diagram of the handrail connection of this utility model.

[0024] In the picture:

[0025] 1. Front bracket; 11. Engagement shaft;

[0026] 2. Support frame; 21. Positioning hole; 22. Fixing part;

[0027] 3. Rear bracket; 31. Connecting shaft; 32. Connecting frame;

[0028] 4. Seat; 41. Locking part;

[0029] 5. Locking rod;

[0030] 6. Backrest frame; 61. Armrest frame; 62. Chair back;

[0031] 7. Handrail; 71. Connecting part; 72. Limiting part. Detailed Implementation

[0032] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0033] like Figures 1 to 3 As shown, this embodiment provides a folding mechanism for an electric tricycle seat, including a front support assembly and a rear support assembly that are hinged sequentially from front to back on the chassis.

[0034] The front bracket assembly includes two front brackets 1 arranged opposite each other, and the upper ends of the two front brackets 1 are connected by a snap-fit ​​shaft 11.

[0035] The rear support assembly includes two opposing rear supports 3, the upper ends of which are connected by a connecting shaft 31. The lower end of the rear side of the seat 4 is rotatably connected to the connecting shaft 31. A locking part 41 is provided on the other side of the lower end of the seat 4. The locking part 41 has a groove with a gradually widening diameter that matches the locking shaft 11, so that the locking part 41 is engaged with the connecting shaft 31, thereby fixing the positions of the front support assembly and the rear support assembly.

[0036] The front support assembly and the rear support assembly are linked by a support frame, allowing the front support assembly and the rear support assembly to rotate in the same direction;

[0037] There are two support frames 2, located on both sides of the front support group and the rear support group respectively. One end of the support frame 2 is at the connection point of the front support 1 and the other end is at the connection point of the rear support 3, which are staggered to make the support frame 2 tilted, leaving space for the folding of the front support group and the rear support group.

[0038] To limit the rotation angle of the rear support assembly, one end of the support frame 2 is connected to the front support 1 at a point lower than the other end is connected to the rear support 3, making the whole structure an inverted "N" shape.

[0039] A locking rod 5 is rotatably connected to the outside of the front bracket 1. The locking rod 5 is located above the support frame 2. The end of the locking rod 5 is connected to the support frame 2 through the fixing part 22 to form a support point, thereby strengthening the stability of the front bracket assembly and the rear bracket assembly. At least one locking rod 5 is provided.

[0040] An elongated hole is provided at the end of the locking rod 5, and a positioning hole 21 is provided on the support frame 2. The fixing part is connected to the positioning hole 21 by a thread, and its end passes through the elongated hole to fix the position of the locking rod 5.

[0041] It also includes a backrest 6 that can be rotated by the subsequent support assembly. Specifically, a connecting frame 32 is provided between the two rear supports 3. The upper end of the connecting frame 32 extends outward and has an opening on the outside. The lower end of the backrest 6 is hinged to the end of the connecting frame 32, so that the backrest 6 can only be bent forward. A backrest 62 is provided on the backrest 6. On both sides of the backrest 6, corresponding to the backrest 62, armrests 61 extend outward. The armrests 7 can be flipped at the end of the armrests 61 to facilitate subsequent folding of the seat 4.

[0042] A concave frame is provided at the end of the handrail frame 61, and the handrail 7 is rotatably connected in the concave frame. A limiting part 72 is provided at the lower end of the handrail 7. The handrail 7 is fixed in position by the length of the extending part 72 abutting against the inner wall of the concave frame. Specifically, a connecting part 71 extends at the lower end of the handrail 7, and the limiting part 72 can be threaded into the connecting part 71. The length of the extending part 72 can be changed by screwing in and out of the thread. To protect the limiting part 72 from the inner wall of the concave frame, a friction pad can be provided at the exposed end of the limiting part 72.

[0043] To reduce the weight of the front and rear support assemblies and make them easier to lift, perforations are provided along the outer curve on both the front support 1 and the rear support 3, and perforations for weight reduction are also provided on the support frame 2.

[0044] The working process of this example:

[0045] When seat 4 needs to be propped up;

[0046] Pull the seat 4 backward, and the seat 4 pulls the rear support assembly. Through the linkage of the support frame 2, the front support assembly rotates backward together, and the locking part 41 is fastened to the locking shaft 11, so that the positions of the seat 4, the front support assembly and the rear support assembly are fixed.

[0047] To enhance the stability of the seat 4 support, the elongated hole on the locking rod 5 is aligned with the positioning hole 21 of the support frame 2, and the fixing part 22 is threadedly connected to the positioning hole 21. By screwing the fixing part 22 inward, its end passes through the elongated hole.

[0048] When the armrest 7 is flipped to the front, the outwardly rotating limiting part 72 abuts against the inner wall of the concave frame, so that the armrest 7 is supported on both sides of the backrest 62.

[0049] When seat 4 needs to be folded up;

[0050] Disconnect the fixing part 22 from the locking rod 5, lift the seat 4 upwards, disconnect the locking part 41 from the locking shaft 11, push the seat 4 forward, so that the rear support assembly drives the front support assembly to rotate forward together through the support frame 2, and the backrest 6 also tends to lie flat with the support assembly. Move the backrest 6 again to make the backrest 62 and the seat 4 more closely fit, so that the backrest 62 is flattened, the folding is completed, and the armrest 7 is flipped to release the support state.

[0051] The foregoing has described one or more embodiments of the present utility model in detail. However, the description is only a preferred embodiment of the present utility model and should not be considered as limiting the scope of the present utility model. All equivalent changes and improvements made within the scope of the claims of the present utility model should still fall within the patent coverage of the present utility model.

Claims

1. A folding mechanism for a seat in an electric tricycle, characterized in that: Includes a front support group and a rear support group that are hinged sequentially on the chassis. The front support group and the rear support group are linked together by a support frame (2) to enable the front support group and the rear support group to rotate in the same direction. The seat (4) is rotatably connected to the rear support assembly. The locking part (41) provided below the seat (4) is engaged with the front support assembly to fix the position of the front support assembly and the position of the rear support assembly.

2. The folding mechanism for an electric tricycle seat according to claim 1, characterized in that: The support frame (2) is positioned at different heights at one end of the connection point of the front support group and the other end of the connection point of the rear support group, so that the support frame (2) is tilted to leave space for the folding of the front support group and the rear support group.

3. The folding mechanism for an electric tricycle seat according to claim 1, characterized in that: The front support assembly includes two front supports (1) arranged opposite each other. The upper ends of the two front supports (1) are connected by a locking shaft (11), and the locking part (41) is fastened to the locking shaft (11).

4. The folding mechanism for an electric tricycle seat according to claim 3, characterized in that: The rear support assembly includes two rear supports (3) arranged opposite to each other. The upper ends of the two rear supports (3) are connected by a connecting shaft (31), and the seat (4) is rotatably connected to the connecting shaft (31).

5. A folding mechanism for a seat in an electric tricycle according to claim 3, characterized in that: A locking rod (5) is connected to the front bracket (1), and the end of the locking rod (5) is connected to the support frame (2) through a fixing part (22) to form a support point.

6. The folding mechanism for an electric tricycle seat according to claim 1, characterized in that: It includes a back frame (6) that can rotate with the rear support assembly and handrail frames (61) extending on both sides of the back frame (6). The handrails (7) can be flipped into the concave frame of the handrail frame (61). The flipping angle of the handrail (7) is limited by the length of the limiting part (72) extending out of the handrail (7).

7. A folding mechanism for a seat in an electric tricycle according to claim 6, characterized in that: The limiting part (72) is threaded to the lower end of the handrail (7) and abuts against the inner wall of the concave frame.

8. A folding mechanism for a seat in an electric tricycle according to claim 4, characterized in that: Two support frames (2) are provided, located on both sides of the front support group and the rear support group respectively. One end of the support frame (2) is lower than the connection point of the front support (1) and the other end is lower than the connection point of the rear support (3).

9. A folding mechanism for a seat in an electric tricycle according to claim 5, characterized in that: An elongated hole is provided at the end of the locking rod (5), and a positioning hole (21) is provided on the support frame (2). The fixing part (22) passes through the elongated hole and the positioning hole (21).

10. A folding mechanism for a seat in an electric tricycle according to claim 4, characterized in that: Hollow holes are provided along the outer curve on both the front bracket (1) and the rear bracket (3).

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