Automobile door hinge assembly for automobile
By designing an L-shaped hinge body and a sliding device and reinforcing components connecting the hinge, the wear and deformation problems of existing automotive door hinges have been solved, achieving more stable and durable door hinge operation.
Patent Information
- Application Number
- CN202520299092.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The existing protective pads of automotive door hinges have high friction with the L-shaped reinforcing plates, resulting in rapid wear, affecting stability, and the L-shaped reinforcing plates are prone to deformation.
Design an automotive door hinge assembly, which adopts an L-shaped hinge body and connecting hinge, and is equipped with a sliding device and reinforcing components. The wear is reduced by ball bearing sliding connection, and the L-shaped reinforcing plate is reinforced by reinforcing blocks to prevent deformation.
This improves the stability and lifespan of the door hinges, reduces wear, and ensures stable operation of the door hinges.
Smart Images

Figure CN223893988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door hinge technology, and in particular to an automotive door hinge assembly. Background Technology
[0002] Cars have gradually become one of the essential modes of transportation for people's travel. During the production process of cars, hinges are used in some joints as a way of installation and connection. Car doors use special hinges, which can ensure the stability of the opening and closing of the car doors.
[0003] For example, the authorization announcement number "CN218375944U" is for a car door hinge. The protective pad can reduce the noise of the car door when opening and closing, and at the same time reduce the wear of the hinge. The reinforcing support block can increase the stability of the hinge during use and increase its service life when the connecting hinge and the second vertical reinforcing plate are in corresponding cooperation.
[0004] The above-mentioned and existing technologies have the following defects: the friction between the protective pad and the L-shaped reinforcing plate is still very large, which will cause the protective pad to wear out quickly, thus affecting the stability of the door hinge operation; the L-shaped reinforcing plate has not been reinforced and is prone to deformation. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a car door hinge assembly.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design an automotive door hinge assembly, comprising an L-shaped hinge body and a connecting hinge. The L-shaped hinge body has L-shaped reinforcing plates integrally formed at both its upper and lower ends. One end of each L-shaped reinforcing plate extends outside the L-shaped hinge body. Reinforcing components are provided on the upper and lower surfaces of both L-shaped reinforcing plates. Multiple first fixing holes are formed on the surface of the L-shaped hinge body. A mounting connector is provided at the end of the connecting hinge away from the L-shaped hinge body. Second fixing holes are formed on both the upper and lower parts of the mounting connector. A support column is provided between the upper and lower inner walls of the connecting hinge. A first rotating hole is formed on the surface of the support column. Second rotating holes are formed on both the upper and lower surfaces of the connecting hinge. First mounting grooves are formed at both the upper and lower ends of the two second rotating holes. Sliding devices are provided on the inner walls of the two first mounting grooves. Third rotating holes are formed on the surfaces of the two L-shaped reinforcing plates. Connecting rods are provided inside the third rotating holes, the second rotating holes, and the first rotating holes.
[0008] Preferably, the sliding device includes a base, which is disposed on the inner wall of the first mounting groove. A second mounting groove is formed on the surface of the base away from the connecting hinge. A ball groove is formed on the inner wall of the second mounting groove near the connecting hinge. A matching ball is provided inside the ball groove. A fixing block is provided on the inner wall of the second mounting groove. A ball hole is formed on the surface of the fixing block. The ball hole matches the ball. The ball is in contact with the surface of the L-shaped reinforcing plate.
[0009] Preferably, the reinforcement component includes two first reinforcing blocks in the front-to-back direction, two second reinforcing blocks, two third reinforcing blocks in the left-to-right direction, and two fourth reinforcing blocks. The two first reinforcing blocks are disposed on the side surface of the L-shaped reinforcement plate away from the L-shaped hinge body, the two second reinforcing blocks are disposed between the two first reinforcing blocks, the two third reinforcing blocks are disposed on the side surface of the L-shaped reinforcement plate away from the L-shaped hinge body, and the two fourth reinforcing blocks are disposed between the two third reinforcing blocks.
[0010] Preferably, the mounting connector and the connecting hinge are provided with two first support ribs at the corner.
[0011] Preferably, each of the two third rotating holes has a hole reinforcement block at the end furthest from the connecting hinge.
[0012] Preferably, a second support rib is provided at the corner of both L-shaped reinforcing plates and the L-shaped hinge body.
[0013] The automotive door hinge assembly proposed in this utility model has the following advantages: The sliding device, when the connecting hinge and the L-shaped reinforcing plate rotate via the connecting rod, allows the L-shaped reinforcing plate to slide smoothly with the connecting hinge through ball bearings, reducing mutual wear between the connecting hinge and the L-shaped reinforcing plate, thereby ensuring more stable operation of the door hinge; the reinforcing components, through two first reinforcing blocks and two second reinforcing blocks, can reinforce one part of the L-shaped reinforcing plate, and through two third reinforcing blocks and two fourth reinforcing blocks, can reinforce the other part of the L-shaped reinforcing plate, thus strengthening the L-shaped reinforcing plate and preventing deformation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front sectional view of the present invention;
[0016] Figure 3 This is an enlarged view of position A of this utility model.
[0017] In the diagram: L-shaped hinge body 1, connecting hinge 2, L-shaped reinforcing plate 3, first fixing hole 4, mounting connector 5, second fixing hole 6, support column 7, first rotating hole 8, second rotating hole 9, first mounting groove 10, third rotating hole 11, connecting rod 12, base 13, second mounting groove 14, ball groove 15, ball 16, fixing block 17, ball hole 18, first reinforcing block 19, second reinforcing block 20, third reinforcing block 21, fourth reinforcing block 22, first support rib 23, hole reinforcing block 24, second support rib 25. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figure 1-3 An automotive door hinge assembly includes an L-shaped hinge body 1 and a connecting hinge 2. The upper and lower ends of the L-shaped hinge body 1 are integrally formed with L-shaped reinforcing plates 3. One end of each L-shaped reinforcing plate 3 extends to the outside of the L-shaped hinge body 1. The upper and lower surfaces of the two L-shaped reinforcing plates 3 are provided with reinforcing components. The reinforcing components include two first reinforcing blocks 19 in the front-rear direction, two second reinforcing blocks 20, two third reinforcing blocks 21 in the left-right direction, and two fourth reinforcing blocks 22. The two first reinforcing blocks 19 are disposed on the side surface of the L-shaped reinforcing plate 3 away from the L-shaped hinge body 1. The two second reinforcing blocks 20 are disposed between the two first reinforcing blocks 19. The two third reinforcing blocks 21 are disposed on the side surface of the L-shaped reinforcing plate 3 away from the L-shaped hinge body 1. The two fourth reinforcing blocks 22 are disposed between the two third reinforcing blocks 21. By setting two first reinforcing blocks 19 and two second reinforcing blocks 20, one part of the L-shaped reinforcing plate 3 can be reinforced. By setting two third reinforcing blocks 21 and two fourth reinforcing blocks 22, the other part of the L-shaped reinforcing plate 3 can be reinforced, thereby strengthening the L-shaped reinforcing plate 3 and preventing deformation.
[0020] The surface of the L-shaped hinge body 1 has multiple first fixing holes 4. The end of the connecting hinge 2 away from the L-shaped hinge body 1 is provided with a mounting connector 5. The upper and lower parts of the mounting connector 5 are provided with second fixing holes 6. A support column 7 is provided between the upper and lower inner walls of the connecting hinge 2. The support column 7 plays a supporting role, making the door hinge assembly stronger. The support column 7 has a first rotating hole 8 on its surface, and the upper and lower surfaces of the connecting hinge 2 have second rotating holes 9. The upper and lower ends of the two second rotating holes 9 have first mounting grooves 10. The inner walls of the two first mounting grooves 10 are provided with sliding devices. The sliding devices include a base 13, which is set on the inner wall of the first mounting groove 10. The side of the base 13 away from the connecting hinge 2 has a second mounting groove 14. The inner wall of the second mounting groove 14 near the connecting hinge 2 has a ball groove 15. The ball groove 15 is provided with a matching ball 16. The inner wall of the second mounting groove 14 is provided with a fixing block 17. The surface of the fixing block 17 has a ball hole 18, which matches the ball 16. The ball 16 is in contact with the surface of the L-shaped reinforcing plate 3. When the connecting hinge 2 and the L-shaped reinforcing plate 3 rotate through the connecting rod 12, the L-shaped reinforcing plate 3 slides with the connecting hinge 2 through the ball bearing 16, reducing mutual wear between the connecting hinge 2 and the L-shaped reinforcing plate 3, thereby ensuring that the door hinge operates more stably.
[0021] Both L-shaped reinforcing plates 3 have a third rotating hole 11 on their surfaces. A connecting rod 12 is installed inside the third rotating hole 11, the second rotating hole 9, and the first rotating hole 8. Two first support ribs 23 are provided at the corner where the mounting connector 5 and the connecting hinge 2 are located, serving to reinforce the mounting connector 5 and the connecting hinge 2. A hole reinforcement block 24 is provided at the end of each of the two third rotating holes 11 away from the connecting hinge 2, serving to reinforce the third rotating hole 11. Second support ribs 25 are provided at the corner where the two L-shaped reinforcing plates 3 and the L-shaped hinge body 1 are located, serving to reinforce the L-shaped reinforcing plates 3 and the L-shaped hinge body 1.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A car door hinge assembly, comprising an L-shaped hinge body (1) and a connecting hinge (2), characterized in that, The L-shaped hinge body (1) has L-shaped reinforcing plates (3) integrally formed at both the top and bottom ends. One end of each L-shaped reinforcing plate (3) extends to the outside of the L-shaped hinge body (1). Reinforcing components are provided on the upper and lower surfaces of the two L-shaped reinforcing plates (3). Multiple first fixing holes (4) are provided on the surface of the L-shaped hinge body (1). The end of the connecting hinge (2) away from the L-shaped hinge body (1) is provided with a mounting connector (5). The mounting connector (5) has second fixing holes (6) on both the upper and lower parts. The connecting hinge (2) has upper and lower inner... A support column (7) is provided between the walls. A first rotating hole (8) is provided on the surface of the support column (7). A second rotating hole (9) is provided on the upper and lower surfaces of the connecting hinge (2). A first mounting groove (10) is provided at both the upper and lower ends of the two second rotating holes (9). A sliding device is provided on the inner wall of the two first mounting grooves (10). A third rotating hole (11) is provided on the surface of the two L-shaped reinforcing plates (3). A connecting rod (12) is provided inside the third rotating hole (11), the second rotating hole (9) and the first rotating hole (8).
2. The automotive door hinge assembly according to claim 1, characterized in that, The sliding device includes a base (13), which is disposed on the inner wall of the first mounting groove (10). A second mounting groove (14) is provided on the side of the base (13) away from the connecting hinge (2). A ball groove (15) is provided on the inner wall of the second mounting groove (14) near the connecting hinge (2). A matching ball (16) is provided inside the ball groove (15). A fixing block (17) is provided on the inner wall of the second mounting groove (14). A ball hole (18) is provided on the surface of the fixing block (17). The ball hole (18) matches the ball (16). The ball (16) is in contact with the surface of the L-shaped reinforcing plate (3).
3. The automotive door hinge assembly according to claim 1, characterized in that, The reinforcement assembly includes two first reinforcing blocks (19) in the front-to-back direction, two second reinforcing blocks (20), two third reinforcing blocks (21) in the left-to-right direction, and two fourth reinforcing blocks (22). The two first reinforcing blocks (19) are disposed on the side surface of the L-shaped reinforcement plate (3) away from the L-shaped hinge body (1). The two second reinforcing blocks (20) are disposed between the two first reinforcing blocks (19). The two third reinforcing blocks (21) are disposed on the side surface of the L-shaped reinforcement plate (3) away from the L-shaped hinge body (1). The two fourth reinforcing blocks (22) are disposed between the two third reinforcing blocks (21).
4. The automotive door hinge assembly according to claim 1, characterized in that, Two first support ribs (23) are provided at the corner of the mounting connector (5) and the connecting hinge (2).
5. The automotive door hinge assembly according to claim 1, characterized in that, Both of the third rotating holes (11) are provided with hole reinforcement blocks (24) at the ends away from the connecting hinge (2).
6. The automotive door hinge assembly according to claim 1, characterized in that, The two L-shaped reinforcing plates (3) and the L-shaped hinge body (1) are provided with a second support rib (25) at the corner.
Citation Information
Patent Citations
Automobile door hinge for automobile
CN218375944U