Automobile door hinge

Abstract

The utility model relates to an automobile door hinge which comprises an automobile door connecting piece connected with an automobile door and an automobile body connecting piece connected with an automobile body, the automobile door connecting piece is provided with a first hinge seat, the automobile body connecting piece is provided with a second hinge seat, and the first hinge seat is hinged to the second hinge seat through a hinge shaft. The hinge shaft is characterized in that a containing cavity is axially formed in the hinge shaft, a lubricating oil supplementing device is inserted into the containing cavity, a plurality of lubricating oil compensating holes are formed in the inner wall of the containing cavity and communicated with the outer side end face of the hinge shaft in order, and the lubricating oil supplementing device is stressed to discharge lubricating oil to enter the containing cavity. And lubricating oil permeates to the outer surface of the hinge shaft from the accommodating cavity to lubricate the joint of the hinge shaft, the first hinge seat and the second hinge seat, so that the hinge can be lubricated by adding the lubricating oil at any time.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically to a bicycle door hinge. Background Technology

[0002] Car door hinges are crucial components connecting the car door and the body, ensuring smooth and stable opening and closing. Typically, each door has three hinges: the upper hinge, the middle hinge, and the lower hinge. These hinges are installed at the top, middle, and bottom of the door, respectively, and connect to corresponding hinge mounting points on the body. Car door hinges are usually made of steel to ensure strength and durability. The connection points between the door and the body require frequent lubrication to ensure smooth and stable operation. Failure to add lubricating oil in a timely manner will cause wear at the hinge joint. However, in daily life, it's not always possible to have lubricating oil readily available; therefore, lubricating oil should be added when necessary. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology.

[0004] A car door hinge is provided that allows for the addition of lubricating oil to lubricate the hinge at any time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive door hinge, comprising a door connector connected to the door and a body connector connected to the body, wherein the door connector is provided with a first hinge seat and the body connector is provided with a second hinge seat, the first hinge seat and the second hinge seat are hingedly connected by a hinge shaft, characterized in that: the hinge shaft has an axially formed receiving cavity, a lubricating oil replenishing device is inserted inside the receiving cavity, and a plurality of lubricating oil compensation holes are arranged in an orderly manner on the inner wall of the receiving cavity communicating with the outer end face of the hinge shaft, the lubricating oil replenishing device discharges lubricating oil into the receiving cavity under force, and the lubricating oil permeates from the receiving cavity to the outer surface of the hinge shaft to lubricate the connection between the hinge shaft and the first hinge seat and the second hinge seat.

[0006] A further feature of this invention is that the lubricating oil replenishment device includes a metal tube with an opening at one end in the axial direction. The opening of the metal tube is connected to an oil storage cavity. The metal tube can be inserted into the receiving cavity. Multiple oil outlet holes connected to the oil storage cavity are arranged in an orderly manner on the circumference of the metal tube. A rubber cap is sealed at the opening. Squeezing the rubber cap can discharge the lubricating oil in the oil storage cavity through the oil outlet holes or inject external lubricating oil into the oil storage cavity.

[0007] The present invention, which has the above-mentioned features, has the following characteristics: the oil reservoir is filled with lubricating oil. Due to the cooperation between the rubber cap and atmospheric pressure, the lubricating oil is kept in the oil reservoir when the rubber cap is not under force. When lubrication is required, the rubber cap can be squeezed by any object that can penetrate into the reservoir, and the oil from the metal tube fills the reservoir. The lubricating oil permeates from the lubricating oil compensation hole to the outer surface of the hinge shaft for lubrication. At the same time, the vibration generated during daily driving can also cause a small amount of lubricating oil in the oil reservoir to flow into the reservoir, providing real-time lubrication compensation.

[0008] A further feature of this invention is that the metal tube and the rubber cap can be completely placed inside the receiving cavity.

[0009] The present invention, having the above-mentioned features, prevents interference with the normal operation of the car door hinges.

[0010] A further feature of this invention is that the top of the rubber cap is provided with a pull cord.

[0011] The present invention, which has the above-mentioned features, allows the lubricating oil replenishing device to be easily pulled out from the receiving cavity to replenish lubricating oil by pulling a rope.

[0012] The beneficial effects of this utility model are as follows: the oil reservoir is filled with lubricating oil. Due to the combination of the rubber cap and atmospheric pressure, the lubricating oil is kept in the oil reservoir when the rubber cap is not under force. When lubrication is required, the rubber cap can be squeezed by any object that can penetrate into the reservoir, and the oil from the metal tube fills the reservoir. The lubricating oil permeates from the lubricating oil compensation hole to the outer surface of the hinge shaft for lubrication. At the same time, the vibration generated during daily driving can also cause a small amount of lubricating oil in the oil reservoir to flow into the reservoir, providing real-time lubrication compensation.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 1 .

[0015] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 2 .

[0016] Figure 3 This is a cross-sectional schematic diagram of the hinge shaft and lubricating oil replenishment device in an embodiment of this utility model. Detailed Implementation

[0017] like Figure 1 —— Figure 3The illustrated automotive door hinge includes a door connector 1 connected to the door and a body connector 2 connected to the vehicle body. The door connector 1 has a first hinge seat 101, and the body connector 2 has a second hinge seat 201. The first hinge seat 101 and the second hinge seat 201 are hinged together by a hinge shaft 3. The hinge shaft 3 has an axially formed receiving cavity 4, and a lubricating oil replenishing device is inserted inside the receiving cavity 4. The inner wall of the receiving cavity 4 is connected to the outer end face of the hinge shaft and has a plurality of lubricating oil compensation holes 5 arranged in an orderly manner. When the lubricating oil replenishing device is subjected to force, it discharges lubricating oil into the receiving cavity 4, and the lubricating oil permeates from the receiving cavity 4 to the outer surface of the hinge shaft 3 for lubrication. At the connection between the hinge shaft 3 and the first hinge seat 101 and the second hinge seat 201, the lubricating oil replenishment device includes a metal tube 6 with one end open in the axial direction. The metal tube 6 has an oil storage chamber 7 connected to the opening. The metal tube 6 can be inserted into the receiving cavity 4. The metal tube 6 has a plurality of oil outlet holes 8 arranged in an orderly manner on its circumference, which communicate with the oil storage chamber 7. A rubber cap 9 is sealed at the opening. Squeezing the rubber cap 9 can discharge the lubricating oil in the oil storage chamber 7 through the oil outlet holes 8 or inject external lubricating oil into the oil storage chamber 7. The metal tube 6 and the rubber cap 9 can be completely placed in the receiving cavity 4. A pull rope 10 is provided on the top of the rubber cap, and the pull rope 10 can be placed in the receiving cavity 4.

[0018] The oil reservoir 7 is filled with lubricating oil. Due to the interaction between the rubber cap 9 and atmospheric pressure, the lubricating oil remains in the oil reservoir 7 when the rubber cap 9 is not under force. When lubrication is required, the rubber cap 9 can be squeezed by any object that can penetrate into the reservoir, and the metal tube 6 will discharge oil to fill the reservoir 4. The lubricating oil will also permeate from the lubricating oil compensation hole 5 to the outer surface of the hinge shaft 3 for lubrication. At the same time, the vibration generated during daily driving can also cause a small amount of lubricating oil in the oil reservoir 7 to flow into the reservoir 4 for real-time lubrication compensation.

Claims

1. A motor vehicle door hinge comprising a door connecting member connected to a door and a body connecting member connected to a body, the door connecting member being provided with a first hinge seat, the body connecting member being provided with a second hinge seat, the first hinge seat and the second hinge seat being connected by a hinge shaft, characterized in that: The accommodating cavity is internally provided with a lubricating oil supplementing device, and a plurality of lubricating oil compensation holes are arranged in order on the inner wall of the accommodating cavity and communicated with the outer side end surface of the hinge shaft.

2. A hinge for a vehicle door according to claim 1, characterized in that: The lubricating oil supplementing device comprises a metal pipe with an open end on the upper side in the axial direction, and the metal pipe is provided with an oil storage cavity communicated with the opening.

3. A vehicle door hinge according to claim 2, characterised in that: The metal pipe and the rubber cap can be completely placed in the accommodating cavity.

4. A vehicle door hinge according to claim 3, characterised in that: The rubber cap is provided with a pull rope on the top.

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