Novel back door hinge assembly

Abstract

The utility model discloses a novel back door hinge assembly which comprises a fixing plate, a sealing gasket detachably arranged on one side of the fixing plate and a swing arm of a bent structure, one end of the swing arm is rotatably connected with the fixing plate, and the other end of the swing arm is provided with a connecting plate. According to the hinge assembly, interference between the back door and a vehicle body when the back door is fully opened is avoided through the bent swing arm, and the overall strength is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a novel back door hinge assembly. BACKGROUND

[0002] At present, with the development of science and technology, people's living standards improve, and the requirement of automobile user experience is also higher and higher, and the automobile door hinge is among them.

[0003] The back door hinge assembly of the prior art is commonly formed by stamping, and is limited by stamping structure. If a high-strength back door hinge needs to be produced, the material thickness needs to be increased. The back door hinge assembly disclosed in Chinese invention patent CN113236055A has a plate-shaped structure, and the swing arm is directly connected with the back door. When the back door is fully opened, the swing arm is easy to interfere with the vehicle body, and the overall strength is low, and the swing arm is easy to deform or crack. Therefore, there is an urgent need for a new technical solution to solve at least one of the above technical problems. SUMMARY

[0004] The utility model aims at providing a novel back door hinge assembly, and the curved swing arm avoids interference with the vehicle body when the back door is fully opened, and the overall strength is higher.

[0005] In order to realize the above technical purpose and achieve the above technical requirements, the utility model adopts the technical scheme of a novel back door hinge assembly, characterized by comprising a fixed plate, a sealing gasket detachably arranged on one side of the fixed plate, and a curved swing arm.

[0006] As a preferred technical scheme, the fixed plate has oppositely arranged first and second mounting legs, and an installation groove is formed between the first and second mounting legs. The swing arm is provided with a hinge part at one end facing the fixed plate, and the hinge part is located in the installation groove.

[0007] As a preferred technical scheme, the swing arm is hinged to the fixed plate through a hinge shaft, and the hinge shaft is arranged in the first mounting leg, the hinge part and the second mounting leg.

[0008] As a preferred technical scheme, a bushing is detachably arranged on each side of the hinge part, and the hinge shaft is arranged in the bushing.

[0009] As a preferred technical scheme, the swing arm is provided with at least one first reinforcing rib on the side surface of one end facing the connecting plate, and the first reinforcing rib is connected with the swing arm and the connecting plate respectively.

[0010] Preferably, the bushing is provided with a first limiting edge at one end, and a swelling seam is arranged through the outer circumferential side of the bushing and extends along the axial direction.

[0011] Preferably, the connecting plate is recessed in the middle, and two connecting holes are arranged through the connecting plate.

[0012] Preferably, the fixing plate is detachably inserted with two press-fit bolts, and the press-fit bolts pass through the sealing gasket.

[0013] Preferably, the hinged shaft is provided with a second limiting edge at each end.

[0014] Preferably, the fixing plate is provided with a clearance slope away from the swing arm side.

[0015] The utility model discloses the beneficial effects are:

[0016] 1) the curved swing arm avoids the interference with the vehicle body when the back door is fully opened, the overall strength is higher, the sealing gasket makes the fixing plate and the vehicle body installation not damage the vehicle body, and can improve the connecting strength;

[0017] 2) the hinged part rotates in the installation groove, and the first installation support foot and the second installation support foot limit the movement of the hinged part in the axial direction and improve the hinged strength;

[0018] 3) the bushing plays the role of protecting the hinged shaft, so that the hinged shaft ensures the coaxiality during rotation;

[0019] 4) the first reinforcing rib improves the connecting strength of the connecting plate and the swing arm, and the strength is higher;

[0020] 5) the clearance slope prevents the interference of the fixing plate with other parts on the vehicle body during installation. DRAWINGS

[0021] Figure 1 It is the structure diagram of the hinge assembly provided by an embodiment of the utility model;

[0022] Figure 2 It is Figure 1 another view of the utility model;

[0023] In Figures 1-2 , 1, the fixing plate;101, the first installation support foot;102, the second installation support foot;103, the installation groove;104, the clearance slope;2, the sealing gasket;3, the swing arm;301, the hinged part;4, the connecting plate;5, the hinged shaft;501, the second limiting edge;6, the bushing;601, the first limiting edge;602, the swelling seam;7, the first reinforcing rib;8, the press-fit bolt;9, the second reinforcing rib;10, the third reinforcing rib. DETAILED DESCRIPTION

[0024] The utility model is further described below with reference to the drawings.

[0025] In the description of the utility model, it should be understood that if the terms "head", "tail", "top", "bottom", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship, the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation structure and operation, therefore, the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, and for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-2 The utility model discloses an embodiment provides a novel back door hinge assembly, including fixed plate 1, detachable setting in the fixed plate 1 one side's sealing gasket 2, the swing arm 3 of curved structure, the swing arm 3 one end with the rotatable connection of fixed plate 1, the other end is provided with connecting plate 4, and fixed plate 1 is used to connect the car body, and connecting plate 4 is used to connect back door, and the curved swing arm 3 avoids the interference with the car body when back door is fully opened, and the overall strength is higher, and sealing gasket 2 makes fixed plate 1 and the car body installation will not damage the car body, and can improve the connecting strength.

[0027] Specifically, the swing arm 3 is made of forging process, and has good forming effect.

[0028] As Figure 1 and Figure 2 The fixed plate 1 has a first mounting leg 101 and a second mounting leg 102 arranged oppositely, and a mounting groove 103 is formed between the first mounting leg 101 and the second mounting leg 102. The swing arm 3 is provided with a hinge part 301 at one end facing the fixed plate 1, and the hinge part 301 is located in the mounting groove 103. Further, the swing arm 3 is hinged to the fixed plate 1 through a hinge shaft 5, and the hinge shaft 5 is arranged in the first mounting leg 101, the hinge part 301 and the second mounting leg 102. The hinge shaft 5 is installed through a press-in riveting process, the hinge part 301 rotates in the mounting groove 103, the first mounting leg 101 and the second mounting leg 102 limit the movement of the hinge part 301 in the axial direction, and the hinge strength is improved.

[0029] As Figure 1 and Figure 2As shown, the hinged part 301 is detachably inserted with a bushing 6 on both sides, the hinge shaft 5 is arranged in the bushing 6, and the bushing 6 protects the hinge shaft 5, so that the coaxiality of the hinge shaft 5 is ensured during rotation.

[0030] As shown in Figure 1 and Figure 2 As shown, the swing arm 3 is provided with at least one first reinforcing rib 7 on the side facing one end of the connecting plate 4, the first reinforcing rib 7 is connected with the swing arm 3 and the connecting plate 4 respectively, the second reinforcing rib 9 is fixedly arranged between the first mounting leg 101 and the fixed plate 1, and the third reinforcing rib 10 is fixedly arranged between the second mounting leg 102 and the fixed plate 1. The reinforcing rib is triangular, the first reinforcing rib 7 improves the connection strength of the connecting plate 4 and the swing arm 3, and the second reinforcing rib 9 and the third reinforcing rib 10 improve the strength of the fixed plate 1.

[0031] As shown in Figure 1 and Figure 2 As shown, one end of the bushing 6 is provided with a first limiting edge 601, and the outer circumferential side of the bushing 6 is provided with an expansion joint 602, which extends in the axial direction and penetrates the first limiting edge 601. The expansion joint 602 makes the bushing 6 have elasticity, so that the hinge shaft 5 cooperates with the bushing 6 to have elasticity, which is better in installation flexibility and can also prevent thermal expansion and contraction from affecting the hinge shaft 5.

[0032] As shown in Figure 1 and Figure 2 As shown, the connecting plate 4 is recessed in the middle, and the connecting plate 4 is provided with two connecting holes, and the recessed middle part of the connecting plate 4 cooperates with the protrusions of the back door to position and limit.

[0033] As shown in Figure 1 and Figure 2 As shown, the fixed plate 1 is detachably inserted with two press-fit bolts 8, the press-fit bolts 8 pass through the sealing gasket 2, and the press-fit bolts 8 are riveted on the fixed plate 1 by the press riveting process.

[0034] As shown in Figure 1 and Figure 2 As shown, the hinge shaft 5 is provided with a second limiting edge 501 at both ends respectively, and the second limiting edge 501 prevents the hinge shaft 5 from falling off.

[0035] As shown in Figure 1 and Figure 2 As shown, the fixed plate 1 is provided with a clearance slope 104 on the side away from the swing arm 3, which prevents the fixed plate 1 from interfering with other parts of the vehicle body during installation.

[0036] The above embodiments are merely described for clearly illustrating the present application, and are not intended to limit the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description, which do not need to be enumerated all the embodiments, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A novel rear door hinge assembly, characterized in that: It includes a fixed plate, a sealing gasket detachably disposed on one side of the fixed plate, and a swing arm with a curved structure. One end of the swing arm is rotatably connected to the fixed plate, and the other end is provided with a connecting plate.

2. The novel rear door hinge assembly according to claim 1, characterized in that, The fixed plate has a first mounting leg and a second mounting leg arranged opposite to each other, and a mounting groove is formed between the first mounting leg and the second mounting leg. The swing arm has a hinge part at one end facing the fixed plate, and the hinge part is located in the mounting groove.

3. The novel rear door hinge assembly according to claim 2, characterized in that, The swing arm is hinged to the fixed plate via a hinge shaft, which passes through the first mounting leg, the hinge portion, and the second mounting leg.

4. The novel rear door hinge assembly according to claim 3, characterized in that, A bushing is detachably inserted on each side of the hinge, and the hinge shaft passes through the bushing.

5. The novel rear door hinge assembly according to claim 1, characterized in that, The swing arm has at least one first reinforcing rib on one side facing the connecting plate, and the first reinforcing rib is connected to the swing arm and the connecting plate respectively.

6. The novel rear door hinge assembly according to claim 4, characterized in that, The bushing has a first limiting edge at one end, and an expansion joint is provided through the outer periphery of the bushing, which extends axially.

7. The novel rear door hinge assembly according to claim 1, characterized in that, The connecting plate has a recessed center and two connecting holes running through it.

8. The novel rear door hinge assembly according to claim 1, characterized in that, The fixing plate is detachably fitted with two press-fit bolts, which pass through the sealing gasket.

9. The novel rear door hinge assembly according to claim 4, characterized in that, The hinge shaft is provided with a second limiting edge at each end.

10. The novel rear door hinge assembly according to claim 1, characterized in that, The fixed plate is provided with an avoidance slope on the side opposite to the swing arm.

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