Flat plate hinge structure

Abstract

The utility model relates to the field of hinges, in particular to a flat plate hinge structure which comprises a first hinge plate and a second hinge plate, a first circular plate is integrally arranged at one end of the first hinge plate, and a second circular plate is integrally arranged at one end of the second hinge plate. The first circular plate and the second circular plate are rotationally connected through a hinge shaft assembly, and a friction plate assembly in friction fit with the first circular plate and the second circular plate is installed on the hinge shaft assembly. One side face of the first hinge plate makes contact with one side face of the second hinge plate, and when the first hinge plate and the second hinge plate rotate to form an angle of 180 degrees, one end face of the first hinge plate makes contact with one end face of the second hinge plate. By means of the design, the hinge can meet various different installation and use requirements in the electronic equipment, and unnecessary friction and abrasion generated when the first hinge plate and the second hinge plate are rotated are avoided.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to a flat plate hinged structure. Background Art

[0002] Poor adaptability: Some hinges on the market may not be able to adapt to the rotation requirements at two extreme angles of 0 degrees and 180 degrees, or may not form a flat interface or stable end face contact at these two angles, which limits their wide application in electronic devices.

[0003] Poor wear resistance: For the hinge shaft in the prior art, the shaft body is generally set as a cylinder. The shaft body will generate relative friction with two hinge plates, and the friction plate will also rotate relative to the shaft body, resulting in easy wear of the shaft body during rotation and shortening the service life of the hinge.

[0004] Therefore, it is necessary to provide a flat plate hinged structure to solve the above technical problems. Summary of the Invention

[0005] To solve the above technical problems, the utility model provides a flat plate hinged structure.

[0006] A flat plate hinged structure provided by the utility model includes a first hinge plate and a second hinge plate. One end of the first hinge plate is integrally provided with a first circular plate, and one end of the second hinge plate is integrally provided with a second circular plate. The first circular plate and the second circular plate are rotationally connected through a hinge shaft assembly. A friction plate assembly that is in frictional cooperation with the first circular plate and the second circular plate is installed on the hinge shaft assembly. When the first hinge plate and the second hinge plate rotate to a 0-degree angle, one side surface of the first hinge plate contacts one side surface of the second hinge plate. When the first hinge plate and the second hinge plate rotate to a 180-degree angle, one end surface of the first hinge plate contacts one end surface of the second hinge plate.

[0007] Preferably, the plane where one side surface of the first hinge plate is located passes through the symmetric center plane of the first circular plate, and the plane where one side surface of the second hinge plate is located passes through the symmetric center plane of the second circular plate.

[0008] Preferably, the hinge shaft assembly includes a shaft body, a limiting plate that is installed at one end of the shaft body by interference fit, and an end baffle that is integrally provided at the other end of the shaft body. The inner side of the end baffle contacts and limits the first circular plate on one side.

[0009] Preferably, the friction plate assembly includes a first friction plate arranged between the first circular plate and the second circular plate, a second friction plate and a third friction plate arranged between the second circular plate and the limiting plate, and both side surfaces of the second friction plate are in frictional cooperation with the third friction plate and the second circular plate respectively.

[0010] Preferably, the side wall of the shaft body is symmetrically provided with an arc surface portion and a flat surface portion, and the first circular plate, the first friction plate, the second friction plate and the limiting plate are provided with limiting mounting holes that cooperate with the arc surface portion and the flat surface portion, and the second circular plate and the third friction plate are provided with circular holes that cooperate with the arc surface portion.

[0011] Preferably, a chamfer is provided at the edge of the third friction plate.

[0012] Compared with the related art, the present invention has the following beneficial effects:

[0013] When the first hinge plate and the second hinge plate are rotated to a 0-degree angle, the sides of the two will be closely attached to form a flat interface; when they are rotated to a 180-degree angle, the end faces of the two are in contact with each other. This design enables the hinge to adapt to a variety of different installation and use requirements in electronic devices.

[0014] The first circular plate, the first friction plate, the second friction plate and the limiting plate are all provided with limiting mounting holes that cooperate with these surface portions, ensuring the relative static state between these components and the shaft body, thereby avoiding unnecessary friction and wear when rotating the first hinge plate and the second hinge plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the hinge of the present invention unfolded at a 180-degree angle;

[0016] Figure 2 Schematic diagram of the hinge of the present invention closed at a 0-degree angle;

[0017] Figure 3 Schematic diagram of the structure of the second hinge plate of the present invention;

[0018] Figure 4 Schematic diagram of the structure of the first hinge plate of the present invention;

[0019] Figure 5 Schematic diagram of the structure of the hinge shaft assembly of the present invention;

[0020] Figure 6 Schematic diagram of the structure of the shaft body of the present invention;

[0021] Figure 7 Schematic diagram of the structure of the third friction plate of the present invention.

[0022] Numbers in the figure: 1. First hinge plate; 11. First circular plate; 2. Second hinge plate; 21. Second circular plate; 3. Hinge shaft assembly; 31. Shaft body; 32. Limit plate; 33. End baffle; 4. Friction plate assembly; 41. First friction plate; 42. Second friction plate; 43. Third friction plate; 311. Arc surface portion; 312. Flat surface portion; 431. Chamfer; a. Limit mounting hole; b. Round hole. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figures 1 to 7 A flat hinge structure (applied to electronic devices) comprises a first hinge plate 1 and a second hinge plate 2, both of which achieve flexible rotation through sophisticated design. Specifically, a first circular plate 11 is cleverly integrated into one end of the first hinge plate 1, while a second circular plate 21 is integrated into the corresponding end of the second hinge plate 2. These two circular plates are connected by a hinge shaft assembly 3 for a stable and smooth rotation. Notably, the hinge shaft assembly 3 is also equipped with a friction plate assembly 4, which tightly cooperates with the first circular plate 11 and the second circular plate 21 to ensure the stability and durability of the hinge during rotation.

[0025] When the first hinge plate 1 and the second hinge plate 2 are rotated to an angle of 0 degrees, their side surfaces will fit tightly together to form a flat interface; and when they are rotated to an angle of 180 degrees, their end surfaces will contact each other. This design enables the hinge to adapt to a variety of different installation and usage requirements in electronic devices.

[0026] In terms of detailed design, the plane on which the side of the first hinge plate 1 lies cleverly passes through the center plane of symmetry of the first circular plate 11, while the side of the second hinge plate 2 also precisely passes through the center plane of symmetry of the second circular plate 21. This design not only improves the structural stability of the hinge but also ensures smooth and balanced rotation.

[0027] The hinge shaft assembly 3 consists of a shaft body 31, a stopper plate 32, and an end stopper plate 33. The stopper plate 32 is securely mounted on one end of the shaft body 31 through an interference fit, while the end stopper plate 33 is integrally mounted on the other end of the shaft body 31 and in close contact with one side of the first circular plate 11 while abutting against the stopper plate 32, forming a stable rotation structure.

[0028] The friction plate assembly 4 includes a first friction plate 41, a second friction plate 42 and a third friction plate 43. The first friction plate 41 is ingeniously placed between the first circular plate 11 and the second circular plate 21, while the second friction plate 42 and the third friction plate 43 are located between the second circular plate 21 and the limit plate 32, and close friction fits are formed between the two side surfaces of the second friction plate 42 and the third friction plate 43 and the second circular plate 21 respectively. This design not only enhances the rotational stability of the hinge, but also effectively reduces wear and extends the service life of the hinge.

[0029] On the side wall of the shaft body 31, an arc surface portion 311 and a flat surface portion 312 are symmetrically arranged. The first circular plate 11, the first friction plate 41, the second friction plate 42 and the limit plate 32 are all provided with limit mounting holes a that cooperate with these surface portions, ensuring relative rest between these components and the shaft body 31, thereby avoiding unnecessary friction and wear when rotating the first hinge plate 1 and the second hinge plate 2. The second circular plate 21 and the third friction plate 43 are provided with circular holes b that cooperate with the arc surface portion 311, further improving the rotational flexibility and stability of the hinge.

[0030] In addition, a chamfer 431 is ingeniously designed at the edge of the third friction plate 43. This design not only forms a convenient notch between the third friction plate 43 and the limit plate 32, but also enables a tool to be easily inserted for operation when the limit plate 32 needs to be disassembled, greatly improving the convenience of maintenance.

[0031] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A flat plate hinge structure, characterized in that, It includes a first hinge plate (1) and a second hinge plate (2). One end of the first hinge plate (1) is integrally provided with a first circular plate (11), and one end of the second hinge plate (2) is integrally provided with a second circular plate (21). The first circular plate (11) and the second circular plate (21) are rotatably connected through a hinge shaft assembly (3). A friction plate assembly (4) that is in frictional cooperation with the first circular plate (11) and the second circular plate (21) is installed on the hinge shaft assembly (3). When the first hinge plate (1) and the second hinge plate (2) rotate to a 0-degree angle, one side surface of the first hinge plate (1) contacts one side surface of the second hinge plate (2). When the first hinge plate (1) and the second hinge plate (2) rotate to a 180-degree angle, one end surface of the first hinge plate (1) contacts one end surface of the second hinge plate (2).

2. The flat hinge structure according to claim 1, characterized in that, The plane where one side surface of the first hinge plate (1) is located passes through the symmetry center plane of the first circular plate (11), and the plane where one side surface of the second hinge plate (2) is located passes through the symmetry center plane of the second circular plate (21).

3. A flat plate hinge structure according to claim 1, characterized in that, The hinge shaft assembly (3) includes a shaft body (31), a limiting plate (32) installed on one end of the shaft body (31) by interference fit, and an end baffle (33) integrally provided at the other end of the shaft body (31). The inner side of the end baffle (33) contacts and limits the plate (32) on one side of the first circular plate (11).

4. The flat hinge structure according to claim 3, characterized in that, The friction plate assembly (4) includes a first friction plate (41) disposed between the first circular plate (11) and the second circular plate (21), a second friction plate (42) disposed between the second circular plate (21) and the limiting plate (32), and a third friction plate (43). Both side surfaces of the second friction plate (42) are in frictional cooperation with the third friction plate (43) and the second circular plate (21) respectively.

5. The flat hinge structure according to claim 4, characterized in that, Arc-shaped surface parts (311) and flat surface parts (312) are symmetrically provided on the side wall of the shaft body (31). Limiting installation holes (a) that cooperate with the arc-shaped surface parts (311) and the flat surface parts (312) are provided on the first circular plate (11), the first friction plate (41), the second friction plate (42), and the limiting plate (32). Circular holes (b) that cooperate with the arc-shaped surface parts (311) are provided on the second circular plate (21) and the third friction plate (43).

6. The flat hinge structure according to claim 4, wherein A chamfer (431) is provided at the edge of the third friction plate (43).

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