Anti-pinch hinge structure and electric tricycle

Abstract

The utility model discloses an anti-pinch hinge structure and an electro-tricycle, the hinge structure comprises a hinge fixing plate, a cushion fixing plate, a lower supporting plate and a protective supporting plate, the protective supporting plate comprises a connecting part and a protective part which are of an integrated structure, the lower end of the lower supporting plate and the lower end of the connecting part are hinged to the hinge fixing plate through a first hinge end and a second hinge end respectively, and the upper end of the lower supporting plate and the upper end of the connecting part are hinged to the cushion fixing plate through a third hinge end and a fourth hinge end respectively. A triangular area is formed among the hinge fixing plate, the lower supporting plate and the connecting part, and the protective part covers the triangular area. According to the change of the triangular area in the simulation opening and closing process, the protection part is additionally arranged on the protection supporting plate, the protection can effectively prevent a child from stretching fingers into the dangerous triangular area, the human body is protected from being injured, and the product detail quality and the user satisfaction degree are improved.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to an anti-pinch hinge structure and an electric tricycle. Background Technology

[0002] On electric tricycles, the rear seat hinge is a crucial component connecting the seat to the electric vehicle frame. It allows the seat to move within a certain range, facilitating passenger use and storage. The hinge allows the seat to be lifted forward or upward, making it convenient for passengers to adjust their seating position or access items in the storage space. The hinge design ensures that the seat is securely locked to the electric vehicle frame when closed, improving safety during operation.

[0003] The rear seat hinges of electric tricycles are typically made of metal, possessing sufficient strength and durability to support the weight of the seat and passenger. The type of hinge may vary depending on the brand and model of the electric tricycle, but common types include latch hinges and folding hinges, which use different mechanical structures to open and close the seat.

[0004] However, in the process of opening and closing the rear seat of existing electric tricycles, the hinge forms a scissor structure in the triangular area of ​​the opening and closing, which poses a risk of pinching fingers and can easily cause personal injury. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing an anti-pinch hinge structure and an electric tricycle.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] In a first aspect, an anti-pinch hinge structure is provided, characterized in that it includes a hinge fixing plate, a seat cushion fixing plate, a lower support plate, and a protective support plate. The protective support plate includes a connecting part and a protective part of an integral structure. The lower ends of the lower support plate and the connecting part are respectively hinged to the hinge fixing plate through a first hinge end and a second hinge end. The upper ends of the lower support plate and the connecting part are respectively hinged to the seat cushion fixing plate through a third hinge end and a fourth hinge end. When the hinge fixing plate and the seat cushion fixing plate are in an open state, a triangular area is formed between the hinge fixing plate, the lower support plate, and the connecting part, and the protective part covers the triangular area.

[0008] Furthermore, it also includes a tension spring, the upper end of which is fixedly connected to the seat cushion fixing plate, and the lower end of which is fixedly connected to the hinge fixing plate.

[0009] Furthermore, the seat cushion fixing plate is provided with an upper fixing pin, the hinge fixing plate is provided with a lower fixing pin, and the two ends of the tension spring are respectively connected to the seat cushion fixing plate and the hinge fixing plate through the upper fixing pin and the lower fixing pin.

[0010] Furthermore, the lower fixing pin is located below the second hinge end.

[0011] Furthermore, the upper fixing pin is located below the fourth hinge end.

[0012] Furthermore, the hinge fixing plate is provided with a number of first fixing holes for connecting the rear seat bucket of the electric tricycle.

[0013] Furthermore, the number of the first fixing holes is three.

[0014] Furthermore, the seat cushion fixing plate is provided with several second fixing holes for connecting the seat cushion.

[0015] Furthermore, the number of the second fixing holes is two.

[0016] In a second aspect, an electric tricycle is provided, characterized in that it includes the anti-pinch hinge structure described in the first aspect, wherein the hinge fixing plate and the seat fixing plate are respectively fixedly connected to the rear seat bucket and the seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Based on the changes in the triangular area during the simulated opening and closing process, a protective part was added to the protective support plate. This protection can effectively prevent children from putting their fingers into the dangerous triangular area, protect the human body from injury, and improve the quality of product details and user satisfaction.

[0019] 2. This protective part is integrally molded with the protective support plate, and its shape is closed, which meets the requirements for placement on the rear seat bucket. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the anti-pinch hinge structure in the open state of Embodiment 1;

[0021] Figure 2 This is a schematic diagram of the closed state of the anti-pinch hinge structure in Embodiment 1;

[0022] Figure 3 This is a schematic diagram of the connection state between the rear seat bucket and the seat cushion in Example 2.

[0023] Wherein: 1-Hinge fixing plate, 2-Seat cushion fixing plate, 3-Lower support plate, 4-Connecting part, 5-Protective part, 6-First hinge end, 7-Second hinge end, 8-Third hinge end, 9-Fourth hinge end, 10-Tension spring, 11-Upper fixing pin, 12-Lower fixing pin, 13-First fixing hole, 14-Rear seat bucket, 15-Second fixing hole, 16-Seat cushion. Detailed Implementation

[0024] To enhance understanding of this utility model, we will now describe it in further detail with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1

[0029] like Figure 1 , 2As shown, an anti-pinch hinge structure includes a hinge fixing plate 1, a seat cushion fixing plate 2, a lower support plate 3, a protective support plate, and a tension spring 10. The protective support plate includes a connecting part 4 and a protective part 5 with an integral structure. The lower ends of the lower support plate 3 and the connecting part 4 are respectively hinged to the hinge fixing plate 1 through a first hinge end 6 and a second hinge end 7. The upper ends of the lower support plate 3 and the connecting part 4 are respectively hinged to the seat cushion fixing plate 2 through a third hinge end 8 and a fourth hinge end 9.

[0030] like Figure 1 As shown, when the hinge fixing plate 1 and the seat fixing plate 2 are in the open state, a triangular area is formed between the hinge fixing plate 1, the lower support plate 3 and the connecting part 4, and the protective part 5 covers the triangular area.

[0031] An upper fixing pin 11 is provided on the seat cushion fixing plate 2, and a lower fixing pin 12 is provided on the hinge fixing plate 1. The two ends of the tension spring 10 are connected to the seat cushion fixing plate 2 and the hinge fixing plate 1 respectively through the upper fixing pin 11 and the lower fixing pin 12. The lower fixing pin 12 is located below the second hinge end 7. The upper fixing pin 11 is located below the fourth hinge end 9.

[0032] The hinge fixing plate 1 has three first fixing holes 13 for connecting the rear seat bucket 14 of the electric tricycle. The seat fixing plate 2 has two second fixing holes 15 for connecting the seat cushion 16.

[0033] like Figure 2 As shown, when the hinge fixing plate 1 and the seat fixing plate 2 are in the closed state, the upper surfaces of the seat fixing plate 2, the hinge fixing plate 1, and the connecting part 4 overlap each other, and the protective part 5 is hidden under the seat fixing plate 2.

[0034] The design incorporates a protective section 5 to simulate the opening and closing process of a hinge, taking into account the changes in the triangular area during the process. This prevents fingers from getting stuck inside the hinge. The protective section 5 is integrally formed with the protective support plate 4, creating a closed shape that meets the requirements for placement in the rear seat bucket 14. This protection effectively prevents children from inserting their fingers into the dangerous triangular area, protecting the human body from injury and improving the quality of product details and user satisfaction.

[0035] Example 2

[0036] An electric tricycle includes the anti-pinch hinge structure described in Embodiment 1. Figure 3 As shown, the hinge fixing plate 1 is fixedly connected to the inner side of the bucket wall of the rear seat bucket 14 through three first fixing holes 13, and the seat cushion fixing plate 2 is fixedly connected to the inner side of the seat cushion 16 through two second fixing holes 15, thereby realizing the opening and closing of the seat cushion 16.

[0037] The above specific embodiments are only for illustrating the technical concept and structural features of this utility model, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the protection scope of this utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A hand-pinch-proof hinge structure, characterized in that: The device includes a hinge fixing plate (1), a seat cushion fixing plate (2), a lower support plate (3), and a protective support plate. The protective support plate includes a connecting part (4) and a protective part (5) with an integral structure. The lower ends of the lower support plate (3) and the connecting part (4) are respectively hinged to the hinge fixing plate (1) through a first hinge end (6) and a second hinge end (7). The upper ends of the lower support plate (3) and the connecting part (4) are respectively hinged to the seat cushion fixing plate (2) through a third hinge end (8) and a fourth hinge end (9). When the hinge fixing plate (1) and the seat cushion fixing plate (2) are in the open state, a triangular area is formed between the hinge fixing plate (1), the lower support plate (3), and the connecting part (4). The protective part (5) covers the triangular area.

2. The anti-pinch hinge structure according to claim 1, characterized in that: It also includes a tension spring (10), the upper end of which is fixedly connected to the seat cushion fixing plate (2), and the lower end is fixedly connected to the hinge fixing plate (1).

3. The anti-pinch hinge structure according to claim 2, characterized in that: The seat cushion fixing plate (2) is provided with an upper fixing pin (11), and the hinge fixing plate (1) is provided with a lower fixing pin (12). The two ends of the tension spring (10) are connected to the seat cushion fixing plate (2) and the hinge fixing plate (1) respectively through the upper fixing pin (11) and the lower fixing pin (12).

4. The anti-pinch hinge structure according to claim 3, characterized in that: The lower fixing pin (12) is located below the second hinge end (7).

5. The anti-pinch hinge structure according to claim 3, characterized in that: The upper fixing pin (11) is located below the fourth hinge end (9).

6. The anti-pinch hinge structure according to claim 1, characterized in that: The hinge fixing plate (1) is provided with a plurality of first fixing holes (13) for connecting the rear seat bucket (14) of the electric tricycle.

7. The anti-pinch hinge structure according to claim 6, characterized in that: The number of the first fixing holes (13) is three.

8. The anti-pinch hinge structure according to claim 1, characterized in that: The seat cushion fixing plate (2) is provided with a number of second fixing holes (15) for connecting the seat cushion (16).

9. The anti-pinch hinge structure according to claim 8, characterized in that: The number of the second fixing holes (15) is two.

10. An electric tricycle, characterized in that: The invention includes the anti-pinch hinge structure according to any one of claims 1-9, wherein the hinge fixing plate (1) and the seat cushion fixing plate (2) are respectively fixedly connected to the rear seat bucket (14) and the seat cushion (16).

Images