Wear-resistant automobile door hinge for automobile

Abstract

The utility model discloses a wear-resistant automobile door hinge for an automobile, belongs to the technical field of hinges, and solves the problems that lubricating oil is inconvenient to add into a mounting hole, friction is generated between the mounting hole and a rotating rod, then the mounting hole and the rotating rod are abraded, and finally abnormal sound is generated in the opening and closing process of an automobile door. Comprising a hinge body, an embedding groove is formed in the right end of the hinge body, a mounting base is fixedly mounted at the left end of the hinge body, a mounting hole communicating with the embedding groove is formed in the top face of the hinge body in a penetrating mode, and a U-shaped groove communicating with the mounting hole is formed in the hinge body; the top face of the hinge body is provided with the oil injection port communicated with the U-shaped groove, a gap between the mounting hole and the rotating rod is lubricated through lubricating oil in the U-shaped groove, then friction between the mounting hole and the rotating rod is reduced, abrasion between the mounting hole and the rotating rod is avoided, and the situation that abnormal sound is generated when a vehicle door is opened and closed can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a wear-resistant door hinge for an automobile. Background Art

[0002] The hinge is a component that connects the car door and the car body, allowing the door to be opened and closed smoothly. One end of the hinge is embedded in the mounting block of the car body, and then it is limitedly installed with the car body through a rotating rod. The other end of the hinge is connected to the hinge.

[0003] After searching, the application with patent number CN202321255967.5 discloses a high-strength and wear-resistant door hinge, including a mounting seat and a hinge body, wherein the mounting seat is fixedly mounted on the left end of the hinge body, and the connection between the mounting seat and the hinge body is arranged in an arc shape, and two hinge mounting holes are arranged on the left end face of the mounting seat, and two front holes are arranged on the upper end of the hinge body, and a mounting groove is arranged on the right end of the hinge body, and a mounting hole is arranged on the right side of the front face of the hinge body, and the mounting hole is arranged through the mounting groove;

[0004] Although the high-strength and wear-resistant door hinge is provided with a hinge mounting hole, which can make the installation and positioning of the hinge more accurate, it is not convenient to add lubricating oil to the mounting hole of the high-strength and wear-resistant door hinge. When opening and closing the door, friction will be generated between the mounting hole and the rotating rod, which will cause wear on the mounting hole and the rotating rod, and finally cause abnormal noise during the opening and closing of the door.

[0005] Therefore, we propose wear-resistant door hinges for automobiles. Summary of the invention

[0006] In view of the deficiencies in the prior art, the utility model provides a wear-resistant door hinge for an automobile, which solves the problem that it is inconvenient to add lubricating oil into the mounting hole of the prior art device, and that when opening and closing the door, friction will be generated between the mounting hole and the rotating rod, which will then cause wear on the mounting hole and the rotating rod, and finally cause abnormal noise to occur during the opening and closing of the door.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: A wear-resistant door hinge for an automobile comprises a hinge body, wherein a fitting groove is provided at the right end of the hinge body;

[0008] A mounting seat is fixedly installed on the left end of the hinge body, a mounting hole connected to the engaging groove is penetrated through the top surface of the hinge body, a U-shaped groove connected to the mounting hole is opened inside the hinge body, and an oil filling port connected to the U-shaped groove is opened on the top surface of the hinge body.

[0009] Preferably, the size of the engaging groove matches the mounting block on the automobile body, and a sealing plug made of rubber is embedded at the top of the oil filling port, wherein the sealing plug facilitates sealing of the lubricating liquid injected into the U-shaped groove and the oil filling port, thereby preventing leakage of the lubricating liquid.

[0010] Preferably, the mounting seat is in a "T" shape, and a hinge hole matching the door hinge is formed through the side of the mounting seat, and there are four hinge holes relatively positioned, wherein bolts are passed through the hinge holes to be connected to the door hinge installation, and the stability of the connection between the mounting seat and the hinge can be increased through the four hinge holes.

[0011] Preferably, a reinforcing plate is provided at the connection between the mounting seat and the hinge body, the cross-section of the reinforcing plate is a right-angled triangle, and the two right-angled surfaces of the reinforcing plate are respectively fixedly welded to the side surfaces of the mounting seat and the hinge body, wherein the strength of the connection between the mounting seat and the hinge body can be strengthened by the reinforcing plate, which is beneficial to increase the service life of the hinge.

[0012] Preferably, the hinge body and the mounting seat are integrally cast, and the material of the hinge body and the mounting seat is nickel-tungsten alloy, wherein the nickel-tungsten alloy combines the advantages of nickel and tungsten, has high hardness and good wear resistance, and further increases the service life of the hinge.

[0013] The utility model provides a wear-resistant door hinge for automobiles, which has the following beneficial effects:

[0014] 1. The wear-resistant door hinge for automobiles injects lubricating oil into the U-shaped groove through the oil filling port, so that the lubricating oil fills the U-shaped groove. When the hinge body rotates with the rotating rod as the axis, the lubricating oil in the U-shaped groove lubricates the gap between the mounting hole and the rotating rod, thereby reducing the friction between the mounting hole and the rotating rod, avoiding the mounting hole and the rotating rod from being worn, and avoiding the abnormal noise when opening and closing the door. This solves the problem that it is inconvenient to add lubricating oil into the mounting hole in the existing device, and when opening and closing the door, the mounting hole and the rotating rod will generate friction, thereby causing the mounting hole and the rotating rod to be worn, and finally causing the abnormal noise when the door is opened and closed;

[0015] 2. The wear-resistant door hinge for automobiles can increase the stability of the connection between the mounting base and the hinge through four hinge holes, and can strengthen the strength of the connection between the mounting base and the hinge body through the reinforcing plate. The nickel-tungsten alloy combines the advantages of nickel and tungsten, has high hardness and good wear resistance, and is beneficial to increase the service life of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the hinge body of the utility model.

[0020] In the figure: 1. hinge body; 11. fitting groove; 12. mounting hole; 13. U-shaped groove; 14. oil filling port; 15. sealing plug; 2. mounting seat; 21. hinge hole; 3. reinforcing plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Figure 1-4 As shown: it includes a hinge body 1, a fitting groove 11 is provided at the right end of the hinge body 1, a mounting seat 2 is fixedly installed at the left end of the hinge body 1, a mounting hole 12 connected to the fitting groove 11 is provided through the top surface of the hinge body 1, a U-shaped groove 13 connected to the mounting hole 12 is provided inside the hinge body 1, an oil filling port 14 connected to the U-shaped groove 13 is provided on the top surface of the hinge body 1, the size of the fitting groove 11 matches the mounting block on the car body, and the top of the oil filling port 14 is inlaid with The sealing plug 15 embedded with rubber material injects lubricating oil into the U-shaped groove 13 through the oil filling port 14, so that the lubricating oil fills the U-shaped groove 13, and then the sealing plug 15 is used to fill the top of the oil filling port 14. When the hinge body 1 rotates with the rotating rod as the axis, the lubricating oil inside the U-shaped groove 13 lubricates the gap between the mounting hole 12 and the rotating rod, thereby reducing the friction between the mounting hole 12 and the rotating rod, avoiding wear between the mounting hole 12 and the rotating rod, and avoiding abnormal noise when opening and closing the door;

[0023] Example 2: Figure 1-3As shown: the mounting seat 2 is in a "T" shape, and a hinge hole 21 matching the door hinge is formed through the side of the mounting seat 2, and there are four hinge holes 21 arranged in opposite positions. A reinforcing plate 3 is arranged at the connection between the mounting seat 2 and the hinge body 1, and the cross-section of the reinforcing plate 3 is a right triangle, and the two right-angled surfaces of the reinforcing plate 3 are respectively fixedly welded to the side surfaces of the mounting seat 2 and the hinge body 1. The hinge body 1 and the mounting seat 2 are integrally cast, and the material of the hinge body 1 and the mounting seat 2 is nickel-tungsten alloy. The stability of the connection between the mounting seat 2 and the hinge can be increased by using the four hinge holes 21, and the strength of the connection between the mounting seat 2 and the hinge body 1 can be strengthened by using the reinforcing plate 3. The nickel-tungsten alloy combines the advantages of nickel and tungsten, has high hardness and good wear resistance, and is beneficial to increasing the service life of the hinge.

[0024] The working principle and use process of the utility model: when using the wear-resistant door hinge for automobile, the engaging groove 11 is engaged with the mounting block of the vehicle body, and then the rotating rod is used to pass through the mounting hole 12 to limit the hinge body 1 and the mounting block, and then the bolt is used to pass through the hinge hole 21 to connect the mounting seat 2 with the door hinge, and then the lubricating oil is injected into the inside of the U-shaped groove 13 through the oil filling port 14 to fill the inside of the U-shaped groove 13 with the lubricating oil, and then the sealing plug 15 is used to fill the top of the oil filling port 14. When the hinge body 1 rotates with the rotating rod as the axis, the lubricating oil inside the U-shaped groove 13 lubricates the gap between the mounting hole 12 and the rotating rod, thereby reducing the friction between the mounting hole 12 and the rotating rod, avoiding wear between the mounting hole 12 and the rotating rod, and avoiding abnormal noise when opening and closing the door.

[0025] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wear-resistant door hinge for an automobile, comprising a hinge body (1), wherein a fitting groove (11) is provided at the right end of the hinge body (1); Features: A mounting seat (2) is fixedly mounted on the left end of the hinge body (1); a mounting hole (12) communicating with the engaging groove (11) is formed through the top surface of the hinge body (1); a U-shaped groove (13) communicating with the mounting hole (12) is formed inside the hinge body (1); and an oil filling port (14) communicating with the U-shaped groove (13) is formed on the top surface of the hinge body (1).

2. The wear-resistant door hinge for automobile according to claim 1, characterized in that: The size of the engaging groove (11) matches the mounting block on the automobile body, and a sealing plug (15) made of rubber is embedded at the top of the oil filling port (14).

3. The wear-resistant door hinge for automobile according to claim 1, characterized in that: The mounting seat (2) is in a "T" shape, and a hinge hole (21) matching the door hinge is formed through a side surface of the mounting seat (2), wherein four hinge holes (21) are provided in opposite positions.

4. The wear-resistant door hinge for automobile according to claim 1, characterized in that: A reinforcing plate (3) is provided at the connection between the mounting seat (2) and the hinge body (1); the cross section of the reinforcing plate (3) is a right-angled triangle, and two right-angled surfaces of the reinforcing plate (3) are respectively fixedly welded to the side surfaces of the mounting seat (2) and the hinge body (1).

5. The wear-resistant door hinge for automobile according to claim 1, characterized in that: The hinge body (1) and the mounting seat (2) are integrally cast and formed, and the material of the hinge body (1) and the mounting seat (2) is nickel-tungsten alloy.

Images