Snap ring type steel hinge, automobile door and automobile thereof

Abstract

The utility model relates to a kind of automobile door hinges, specifically to a kind of snap ring type steel hinge;It is applied to automobile, including first support, second support and rotating shaft pin, the first support and the second support are set on the rotating shaft pin, and are rotated by the rotating shaft pin connection, the first support is set on the rotating shaft pin upper half, the second support is set on the rotating shaft pin lower half, the lower end of the rotating shaft pin exposes from second support and is clamped with a snap ring, the second support side is also equipped with locking bolt, the locking bolt is with the shaft body of the rotating shaft pin in the second support and is tightly pressed. The snap ring type steel hinge of the present application has the advantage of improving the release force.

Description

Technical Field

[0001] This utility model relates to an automotive door hinge structure, specifically a snap ring type steel hinge. Background Technology

[0002] As the manufacturing cost of steel hinges decreases, most domestic OEMs need to use steel hinge structures. The biggest advantage of steel hinges is that the door bracket and body bracket of the steel hinge can be repeatedly disassembled and reassembled without loosening the hinge installation bolts.

[0003] This type of detachable steel hinge has an inherent advantage in the final assembly workshop, but it also has an inherent disadvantage in vehicle collision safety. Because the hinge is easy to detach, the rotating connection of the steel hinge is prone to falling off in harsh collision environments, causing the door to fall off. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, this utility model aims to provide a snap-ring steel hinge that can prevent the steel hinge from falling off when a car is involved in a collision, thereby preventing the car door from falling off.

[0005] The snap-ring type steel hinge in this solution is used in automobiles and includes a first bracket, a second bracket, and a rotating pin. The first bracket and the second bracket are sleeved on the rotating pin and are rotatably connected by the rotating pin. The first bracket is sleeved on the upper half of the rotating pin, and the second bracket is sleeved on the lower half of the rotating pin. The lower end of the rotating pin protrudes from the second bracket and is secured with a snap ring. A locking bolt is also provided on one side of the second bracket, and the locking bolt is tightened against the shaft of the rotating pin inside the second bracket.

[0006] The advantages of this utility model are: a retaining ring is provided at the lower end of the rotating pin, which can provide an axial limiting effect on the rotating pin, increase the pull-out force of the rotating pin, and prevent the hinge seat from coming off the rotating pin to a certain extent, thus preventing the door from falling off the vehicle frame.

[0007] Furthermore, there is a gap between the retaining ring and the lower end face of the second bracket. The purpose of leaving a gap between the retaining ring and the second bracket is, on the one hand, to compensate for the Z-direction installation error of the hinge, and on the other hand, to prevent the retaining ring from bearing the Z-direction force alone after it is tightly pressed against the second bracket, which would cause the retaining ring to fail prematurely. The retaining ring and the locking bolt should share the force to increase the disengagement force of the rotating pin.

[0008] Furthermore, the first bracket is a door bracket, one end of which is installed on the door frame, and the other end is provided with a first hinge seat, in which the upper half of the rotating shaft pin is rotatably sleeved.

[0009] Furthermore, the second bracket is a vehicle body bracket, one end of which is installed on the vehicle body frame, and the other end is provided with a second hinge seat, in which the lower half of the rotating shaft pin is rotatably sleeved.

[0010] Furthermore, an annular groove is formed at the lower end of the rotating pin, and the retaining ring is disposed within the annular groove. The retaining ring being fitted into the annular groove can improve the force-bearing capacity of the retaining ring.

[0011] Furthermore, a threaded hole is provided on one side of the second bracket, and the locking bolt is internally threaded into the threaded hole. An annular groove is provided on the lower half of the rotating shaft pin, and the locking bolt is tightened against the annular groove.

[0012] This solution provides an automobile door, including the aforementioned snap ring type steel hinge.

[0013] This solution provides a car, including the aforementioned car door. Attached Figure Description

[0014] Figure 1 This is a perspective view of the snap ring type steel hinge of this utility model; Figure 2 This is a perspective view of the snap ring type steel hinge of this utility model. Figure 3 This is a top view of the snap ring type steel hinge of this utility model; Figure 4 for Figure 3 AA in the middle; Figure 5 This is a schematic diagram of the rotating shaft pin in this utility model.

[0015] 100 is the first support, 200 is the second support, 300 is the rotating shaft pin, 400 is the retaining ring, 500 is the locking bolt, 600 is the clearance, 301 is the annular groove, and 302 is the annular anti-dislodgement groove. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: according to Figures 1 to 5 As shown, the snap-ring type steel hinge in this solution, applied to automobiles, includes a first bracket 100, a second bracket 200, and a rotating pin 300. The first bracket 100 and the second bracket 200 are both fitted onto the rotating pin 300 and are rotatably connected via the rotating pin 300. Specifically, the first bracket 100 is fitted onto the upper half of the rotating pin 300, and the second bracket 200 is fitted onto the lower half of the rotating pin 300. An annular platform 303 is provided on the shaft of the rotating pin 300 between the upper and lower halves.

[0017] In this embodiment, the first bracket 100 is a door bracket, one end of which is fixedly installed to the door frame by bolts, and the other end is a first hinge seat 101. The second bracket 200 is a body bracket, one end of which is fixedly installed to the body frame by bolts, and the other end is a second hinge seat 201. The upper half of the rotating shaft pin 300 is rotatably sleeved inside the first hinge seat 101, and the lower half of the rotating shaft pin 300 is rotatably sleeved inside the second hinge seat 201.

[0018] A locking bolt 500 is also provided on one side of the second bracket 200. The locking bolt 500 is tightened against the shaft of the rotating pin 300 inside the second bracket 200. In this embodiment, a threaded hole is provided on one side of the second bracket 200, and the locking bolt 500 is threadedly connected to the threaded hole. An annular groove 302 is provided on the lower half of the shaft of the rotating pin 300. The locking bolt 500 is tightened against the annular groove 302. The bottom of the annular groove 302 is provided with an anti-slip protrusion 304.

[0019] The upper end of the rotating pin 300, protruding from the first bracket 100, is provided with an upper pressure cap. The lower end of the rotating pin 300, protruding from the second bracket 200, is fitted with a retaining ring 400. In this embodiment, an annular groove 301 is formed on the outer edge of the rotating pin 300 near the lower end of the rotating pin 300, and the retaining ring 400 is disposed in the annular groove 301. The retaining ring 400, fitted into the annular groove 301, can improve the stress resistance of the retaining ring 400.

[0020] Specifically, there is a gap of 600 between the retaining ring 400 and the lower end face of the second bracket 200. The purpose of leaving a gap of 600 is, on the one hand, to compensate for the Z-direction installation error of the hinge, and on the other hand, to prevent the retaining ring 400 from bearing the Z-direction force alone after it is tightened with the second bracket 200, which would cause the retaining ring 400 to fail prematurely. The retaining ring 400 and the locking bolt 500 should share the force to increase the disengagement force of the rotating pin 300. Due to assembly requirements, when the locking bolt 500 is tightened against the ring release groove 302, there is a certain distance between the lower edge of the locking bolt 500 and the groove platform of the ring release groove 302. When the hinge disengages, the lower edge of the locking bolt 500 gets stuck in the groove platform of the ring release groove 302, resulting in a large disengagement force. If this distance is equal to or close to the length of the gap, the combined force that the retaining ring 400 and the locking bolt 500 can withstand is the greatest, and the disengagement force of the entire hinge structure is the greatest.

[0021] The 400 type steel hinge in this design has a retaining ring 400 at the lower end of the rotating pin 300. The retaining ring 400 can provide an axial limit to the rotating pin 300, increase the pull-out force of the rotating pin 300, and can prevent the hinge seat from coming off the rotating pin 300 to a certain extent, thus preventing the door from falling off the body frame.

[0022] This solution provides an automobile door, including the aforementioned snap ring type steel hinge.

[0023] This solution provides a car, including the aforementioned car door.

[0024] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A snap ring type steel hinge applied to an automobile, comprising a first support, a second support and a rotating shaft pin, the first support and the second support being sleeved on the rotating shaft pin and being rotationally connected through the rotating shaft pin, characterized in that: The first bracket is sleeved on the upper half of the rotating pin, and the second bracket is sleeved on the lower half of the rotating pin. The lower end of the rotating pin protrudes from the second bracket and is secured with a retaining ring. A locking bolt is also provided on one side of the second bracket, and the locking bolt is tightened against the shaft of the rotating pin inside the second bracket.

2. The circlip-type steel hinge according to claim 1, wherein: There is a gap between the retaining ring and the lower end face of the second bracket.

3. A clasp-type steel hinge according to claim 1 or 2, characterized in that: The first bracket is a car door bracket. One end of the car door bracket is installed on the car door frame, and the other end is provided with a first hinge seat. The upper half of the rotating shaft pin is rotatably sleeved in the first hinge seat.

4. The circlip-type steel hinge according to claim 1 or 2, characterized by: The second bracket is a vehicle body bracket. One end of the vehicle body bracket is installed on the vehicle body frame, and the other end is provided with a second hinge seat. The lower half of the rotating shaft pin is rotatably sleeved in the second hinge seat.

5. The circlip-type steel hinge according to claim 1 or 2, characterized by: The lower end of the rotating shaft pin is provided with an annular groove, and the retaining ring is disposed in the annular groove.

6. The circlip-type steel hinge according to claim 1 or 2, characterized by: The second bracket has a threaded hole on one side, and the locking bolt is threaded into the threaded hole. The lower half of the rotating shaft pin has a ring-shaped anti-dislodgement groove, and the locking bolt is tightened against the ring-shaped anti-dislodgement groove.

7. An automotive door characterized by: Including the snap ring type steel hinge as described in any one of claims 1 to 6.

8. An automobile characterized by: Including the vehicle door as described in claim 7.

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