Vehicle door hinge with buffering function
By designing a door hinge with a buffer function, and using a push block and elastic element to absorb impact force, the problem of abnormal noise and jamming when closing the door with force in traditional door hinges is solved, and the service life is extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional car door hinges are prone to making abnormal noises or getting stuck when closing the door with force, which leads to aging of the hinge pins and affects their service life.
Design a door hinge with a buffer function to absorb impact force and reduce friction between components by using a push block and elastic element.
It effectively reduces friction in the door hinges when closing, extends their service life, and avoids abnormal noises and jamming.
Smart Images

Figure CN224064153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive component technology, and in particular to a door hinge with a buffer function. Background Technology
[0002] The door hinge is a key component that connects the door to the body, and is responsible for supporting the door and enabling its opening and closing function.
[0003] Traditional car door hinges use a rigid rotating structure design. Their working principle is to achieve the rotation and opening of the door relative to the car body through the hinge shaft. However, the door is entirely controlled by human power. When the door is closed forcefully, the metal parts rub against each other, which accelerates the aging of the hinge pin. After long-term use, abnormal noise or jamming will occur. Therefore, this solution proposes a car door hinge with a buffer function to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a door hinge with a buffer function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a door hinge with a buffer function, comprising:
[0006] First hinge plate;
[0007] The second hinge plate is disposed on one side of the first hinge plate;
[0008] A rotating block, which is hinged to the top of a first hinge plate;
[0009] A blocking plate, the blocking plate being fixedly connected to the top of the first hinge plate;
[0010] A buffer assembly includes a push block disposed on one side of a rotating block, an elastic element disposed on one side of the push block, and a protective element disposed on the other side of the push block.
[0011] Preferably, a first mounting plate is fixedly connected to the bottom of the first hinge plate, and a first mounting hole is provided in the middle of the first mounting plate.
[0012] Preferably, a limiting plate is fixedly connected to the top of the first hinge plate, and the limiting plate is used to block the movement distance of the rotating block.
[0013] Preferably, a second mounting plate is fixedly connected to one side of the second hinge plate, and a second mounting hole is provided on one side of the second mounting plate.
[0014] Preferably, the protective component includes a protective sleeve disposed on one side of the push block, the protective sleeve being used to protect the push block.
[0015] Preferably, the elastic element includes a connecting block fixedly connected to one side of the push block, an elastic block fixedly connected to one side of the connecting block, and the elastic block fixedly connected to one side of the blocking plate.
[0016] Preferably, a limiting plate is fixedly connected to one side of the blocking plate, and a sliding groove is provided on one side of the limiting plate. The connecting block and the elastic block are both inserted and connected inside the sliding groove, and a limiting member is provided at the connection between the sliding groove and the connecting block.
[0017] Preferably, the limiting member includes a limiting groove formed on the inner wall of one side of the sliding groove, and a limiting block is fixedly connected to one side of the connecting block, the limiting block being inserted into the inside of the limiting groove.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] This invention, through the design of a push block, an elastic element, and a protective element, allows the second hinge plate to rotate towards the side of the first hinge plate when the door rotates on one side of the vehicle body. At this time, the second hinge plate moves towards the side of the push block, and the impact force is absorbed by the elastic element on the side of the push block, thereby absorbing the impact of the second hinge plate and reducing the friction between the components. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0021] Figure 2 This is a top view of the structure of this utility model.
[0022] Figure 3 This is a front cross-sectional view of the buffer assembly of this utility model.
[0023] Figure 4 This is a schematic diagram of the overall front cross-sectional structure of this utility model.
[0024] In the figure: 1. First hinge plate; 101. First mounting plate; 102. First mounting hole; 103. Limiting plate; 2. Second hinge plate; 201. Second mounting plate; 202. Second mounting hole; 3. Rotating block; 4. Blocking plate; 5. Buffer assembly; 501. Pushing block; 502. Connecting block; 503. Elastic block; 504. Sliding groove; 505. Limiting plate; 6. Protective sleeve; 7. Limiting component; 701. Limiting block; 702. Limiting groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides, for example Figure 1-4 A door hinge with a buffer function, as shown, includes:
[0027] First hinge plate 1;
[0028] The second hinge plate 2 is disposed on one side of the first hinge plate 1;
[0029] Rotating block 3 is hinged to the top of the first hinge plate 1;
[0030] Blocking plate 4 is fixedly connected to the top of the first hinge plate 1;
[0031] The buffer assembly 5 includes a push block 501 disposed on one side of the rotating block 3. An elastic element is disposed on one side of the push block 501, and a protective element is disposed on the other side of the push block 501.
[0032] It should be noted that the second hinge plate 2 is connected between the two first hinge plates 1 via the rotating block 3, allowing the second hinge plate 2 to rotate on the first hinge plate 1 via the rotating block 3. When the door rotates on one side of the vehicle body, it drives the second hinge plate 2 to rotate towards the side of the first hinge plate 1. At this time, the second hinge plate 2 moves towards the side of the push block 501, and the impact force is absorbed by the elastic element on the side of the push block 501, thereby absorbing the impact of the second hinge plate 2 and reducing the friction between the components.
[0033] Specifically, a first mounting plate 101 is fixedly connected to the bottom of the first hinge plate 1, and a first mounting hole 102 is provided in the middle of the first mounting plate 101. A limit plate 103 is fixedly connected to the top of the first hinge plate 1. The limit plate 103 is used to block the movement distance of the rotating block 3. A second mounting plate 201 is fixedly connected to one side of the second hinge plate 2, and a second mounting hole 202 is provided on one side of the second mounting plate 201.
[0034] It should be noted that the two mounting plates are connected to the vehicle body and the door respectively. In use, the two mounting plates are attached to the vehicle body and the door respectively, and then bolts are passed through the mounting holes on the mounting plates to connect the two mounting plates to the vehicle body and the door respectively.
[0035] Specifically, the protective component includes a protective sleeve 6 disposed on one side of the push block 501, which is used to protect the push block 501.
[0036] Specifically, the elastic element includes a connecting block 502 fixedly connected to one side of the push block 501, an elastic block 503 fixedly connected to one side of the connecting block 502, and the elastic block 503 fixedly connected to one side of the baffle plate 4.
[0037] Specifically, a limiting plate 505 is fixedly connected to one side of the blocking plate 4. A sliding groove 504 is provided on one side of the limiting plate 505. The connecting block 502 and the elastic block 503 are both inserted into the inside of the sliding groove 504. A limiting member 7 is provided at the connection between the sliding groove 504 and the connecting block 502.
[0038] It should be noted that there are two limiting plates 505. A sliding groove 504 is provided on the opposite side of the two limiting plates 505, so that the limiting plates 505 can be fitted onto the connecting block 502 through the sliding groove 504.
[0039] Furthermore, when it is necessary to fix the position of the push block 501, first fix both ends of the elastic block 503 to the blocking plate 4 and the connecting block 502 respectively, then put the limiting plate 505 on the connecting block 502, and fix the limiting plate 505 to the blocking plate 4 by welding.
[0040] Specifically, the limiting component 7 includes a limiting groove 702 formed on the inner wall of one side of the sliding groove 504, and a limiting block 701 fixedly connected to one side of the connecting block 502, with the limiting block 701 inserted into the inside of the limiting groove 702.
[0041] It should be noted that the opening of the limiting groove 702 is adapted to the setting of the limiting block 701, so that the limiting block 701 can be inside the limiting groove 702. When the limiting block 701 moves to fit against the inner wall of the limiting groove 702, the moving distance of the limiting block 701 is limited by the limiting groove 702, and the moving distance of the connecting block 502 is limited by the limiting block 701 that limits the moving distance.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A door hinge with a buffer function, characterized in that, Include: First hinge plate (1); Second hinge plate (2), the second hinge plate (2) is arranged on one side of the first hinge plate (1); Rotary block (3), the rotary block (3) is hinged on the top of the first hinge plate (1); The blocking plate (4) is fixedly connected to the top of the first hinge plate (1); The buffer assembly (5) includes a push block (501) arranged on one side of the rotary block (3), one side of the push block (501) is provided with an elastic element, and the other side of the push block (501) is provided with a protective element.
2. The vehicle door hinge having a buffering function according to claim 1, wherein The bottom of the first hinge plate (1) is fixedly connected with a first mounting plate (101), and the middle of the first mounting plate (101) is provided with a first mounting hole (102).
3. The vehicle door hinge having a buffering function according to claim 1, wherein The top of the first hinge plate (1) is fixedly connected with a limiting plate (103), and the limiting plate (103) is used to block the movement distance of the rotary block (3).
4. The vehicle door hinge having a buffering function according to claim 1, wherein One side of the second hinge plate (2) is fixedly connected with a second mounting plate (201), and one side of the second mounting plate (201) is provided with a second mounting hole (202).
5. The vehicle door hinge having a buffering function according to claim 1, wherein The protective element includes a protective sleeve (6) arranged on one side of the push block (501), and the protective sleeve (6) is used to protect the push block (501).
6. The vehicle door hinge having a buffering function according to claim 5, wherein The elastic element includes a connecting block (502) fixedly connected on one side of the push block (501), one side of the connecting block (502) is fixedly connected with an elastic block (503), and the elastic block (503) is fixedly connected on one side of the blocking plate (4).
7. The vehicle door hinge having a buffering function according to claim 6, wherein One side of the blocking plate (4) is fixedly connected with a limiting plate (505), one side of the limiting plate (505) is provided with a sliding groove (504), and the connecting block (502) and the elastic block (503) are both inserted into the inside of the sliding groove (504), and the connecting portion of the sliding groove (504) and the connecting block (502) is provided with a limiting element (7).
8. The vehicle door hinge having a buffering function according to claim 7, wherein The limiting element (7) includes a limiting groove (702) arranged in the inner wall of one side of the sliding groove (504), one side of the connecting block (502) is fixedly connected with a limiting block (701), and the limiting block (701) is inserted into the inside of the limiting groove (702).