Lightweight hinge assembly structure of automobile

Abstract

The utility model discloses an automobile light-weight hinge assembly structure which comprises a first hinge body and a second hinge body, the first hinge body and the second hinge body are used in a matched mode, and the first hinge body and the second hinge body are movably connected through a pin shaft. A split wrapping structure is arranged at the connecting position of the first hinge body and the second hinge body with the pin shaft; according to the hinge assembly, the friction interface of the hinge and the pin shaft is transferred to the replaceable limiting pipe through a split wrapping structure, sealing failure caused by abrasion of a thin-wall hinge body is avoided, the socket sleeve and the limiting pipe are locked through a polygonal structure and screws, the torsion resistance is enhanced, and the service life of the hinge assembly is prolonged. The pin shaft and the stabilizing hole are in transition fit to realize fine adjustment to eliminate assembly deviation, the limiting pipe in modular design can be quickly replaced, the maintenance cost is reduced, and all the parts cooperate to prolong the service life of the hinge and guarantee the sealing performance of the vehicle door on the basis of light weight.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, specifically to a lightweight automotive hinge assembly structure. Background Technology

[0002] In modern automobiles, hinges are primarily used in the car door positions to connect the car door to the car frame. Modern car hinges are mainly made of metal and are connected to the door and door frame with screws during application. In order to further reduce the weight of the car body, current car hinges are also designed to be lightweight.

[0003] Lightweight design of hinge assemblies can not only effectively reduce the overall weight of a car, but also facilitate disassembly and maintenance. However, in order to reduce structural weight, the current lightweight design of automotive hinge assemblies uses a stamping process that makes the hinge structure thinner. As a result, the connection between the hinge and the pin is also thinner. During use, the hinge often wears out severely, causing the door to not seal properly, and replacement is very difficult. In view of this, this case was developed through in-depth research on the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lightweight hinge assembly structure for automobiles, solving the existing technical problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a lightweight automotive hinge assembly structure, including a first hinge body and a second hinge body, the first hinge body and the second hinge body are used in conjunction, the first hinge body and the second hinge body are movably connected by a pin, and a split wrapping structure is provided at the connection position between the first hinge body and the second hinge body and the pin.

[0006] The split-type wrapping structure includes a limiting tube. Both the first hinge body and the second hinge body have insertion holes. The pin passes through the insertion holes. Both the first hinge body and the second hinge body have socket sleeves. The socket sleeves are fitted with the limiting tubes. The side of the socket sleeves has positioning holes. The side of the limiting tubes has fixing holes. The fixing holes correspond to the positioning holes. Fixing screws are fitted into the positioning holes and connected to the fixing holes.

[0007] The split-wrapping structure also includes a stabilizing hole. The center axis of the limiting tube is provided with a stabilizing hole, and the pin passes through the stabilizing hole. The stabilizing hole and the pin are in transition fit.

[0008] Preferably, the socket sleeve is a polygonal groove and is integrally formed with the first hinge body or the second hinge body.

[0009] Preferably, the root of the limiting tube is provided with a polygonal locking block corresponding to the socket sleeve.

[0010] Preferably, a pair of limiting nuts are installed at both ends of the pin, and a pair of washers are provided on the inner side of the pair of limiting nuts.

[0011] Preferably, the diameter of the stabilizing hole is smaller than the diameter of the insertion hole.

[0012] Preferably, the number of positioning holes and fixing holes are matched, and the number of positioning holes and fixing holes is more than one pair. The positioning holes are arranged in a ring array on the socket sleeve, and the fixing holes are arranged in a ring array on the limiting tube. Beneficial effects

[0013] This utility model provides a lightweight hinge assembly structure for automobiles. It offers the following advantages: The hinge assembly employs a split-wrap structure to transfer the friction interface between the hinge and the pin to a replaceable limiting tube, preventing seal failure due to wear of the thin-walled hinge body. The socket sleeve and limiting tube are secured with a polygonal structure and screws to enhance torsional resistance. The transition fit between the pin and the stabilizing hole allows for fine-tuning to eliminate assembly deviations. The modularly designed limiting tube allows for quick replacement, reducing maintenance costs. The synergistic effect of all components extends the hinge's lifespan and ensures door sealing while maintaining lightweight construction. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a lightweight automotive hinge assembly structure according to the present invention.

[0015] Figure 2 This is a schematic diagram of the explosive structure of a lightweight automotive hinge assembly according to the present invention.

[0016] Figure 3 This is a cross-sectional structural diagram of a lightweight automotive hinge assembly structure according to the present invention.

[0017] In the diagram: 1. First hinge body; 2. Second hinge body; 3. Pin; 4. Limiting tube; 5. Socket sleeve; 6. Fixing screw; 7. Stabilizing hole; 8. Locking block; 9. Limiting nut; 10. Washer. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides an implementation scheme:

[0020] The current lightweight design of automotive hinge assemblies uses a stamping process to reduce structural weight, resulting in a thinner hinge structure. Consequently, the connection between the hinge and pin 3 is also thinner, often leading to severe hinge wear during use, causing poor door sealing, and making replacement very difficult.

[0021] To address the aforementioned issues, this application discloses a lightweight automotive hinge assembly structure, comprising a first hinge body 1 and a second hinge body 2. The first hinge body 1 and the second hinge body 2 are used in conjunction and are movably connected by a pin 3. A split-wrap structure is provided at the connection position between the first hinge body 1 and the second hinge body 2 and the pin 3. The first hinge body 1 and the second hinge body 2 are respectively connected to the car door and the car body, and form a rotary pair through the movable engagement of the pin 3. The split-wrap structure is provided at the connection between the hinge body and the pin 3, and replaces the traditional direct contact between the hinge body and the pin 3 by using a built-in replaceable friction interface. When the car door is opened and closed, the split-wrap structure transfers the rotational friction to its internal controllable wear area.

[0022] According to the instruction manual Figure 1-3 It can be seen that a socket sleeve 5 is provided in the insertion hole of both the first hinge body 1 and the second hinge body 2. The socket sleeve 5 fixes the limiting tube 4 through the polygonal groove structure. The fixing hole on the side of the limiting tube 4 and the positioning hole of the socket sleeve 5 are connected by fixing screws 6 to form a rigid lock.

[0023] Furthermore, the pin 3 passes through the stabilizing hole 7 of the limiting tube 4 and forms a transition fit with the stabilizing hole 7, transforming the traditional direct friction between the hinge body and the pin 3 into contact friction between the limiting tube 4 and the pin 3.

[0024] The limiting nuts 9 at both ends of the pin 3 apply axial preload through the inner washer 10. When the hinge opens and closes, the sliding of the limiting tube 4 compensates for the deformation, reducing the wear on the hinge body.

[0025] As a preferred option, the socket sleeve 5 is integrally formed with the first hinge body 1 or the second hinge body 2. Its polygonal groove and the polygonal locking block 8 at the root of the limiting tube 4 form a circumferential constraint to prevent the limiting tube 4 from rotating and shifting. The diameter of the stabilizing hole 7 is smaller than the diameter of the insertion hole, ensuring that the pin 3 only contacts the limiting tube 4 and avoids deformation of the hinge body insertion hole edge due to force.

[0026] As a preferred option, the washer 10 inside the limit nut 9 is made of elastic material to absorb vibration and impact when the hinge is repeatedly opened and closed. Combined with the transition fit design of the stabilizing hole 7 of the limit tube 4, it allows the pin 3 to deflect slightly adaptively, eliminating the jamming problem caused by assembly errors. The ring array distribution of the positioning hole and the fixing hole is locked by multiple sets of screws to enhance the shear resistance of the connection node.

[0027] As a preferred option, the transition mating surface between the stabilizing hole 7 and the pin 3 forms a controllable wear interface, with wear concentrated on the replaceable limiting tube 4. The annular reinforcing structure of the socket sleeve 5 shares the load of the door's weight, transforming the line contact friction of the traditional hinge into surface contact sliding between the limiting tube 4 and the pin 3, reducing local pressure and extending the overall lifespan of the hinge.

[0028] As a preferred option, the split-package structure allows for the individual disassembly of the limiting tube 4 component. During maintenance, only the fixing screw 6 and the limiting nut 9 need to be loosened, without disassembling the hinge body or the door assembly, which greatly improves maintenance efficiency. The components work together to achieve the division of labor protection of "socket sleeve 5 positioning - limiting tube 4 bearing wear - pin shaft 3 guiding", comprehensively improving sealing and durability.

[0029] In summary, this hinge assembly employs a split-wrap structure to transfer the friction interface between the hinge and pin 3 to the replaceable limiting tube 4, preventing wear of the thin-walled hinge body that could lead to sealing failure. The socket sleeve 5 and the limiting tube 4 are reinforced with torsional resistance through a polygonal structure and screw fastening. The transition fit between the pin 3 and the stabilizing hole 7 allows for fine-tuning to eliminate assembly deviations. The modular design of the limiting tube 4 allows for quick replacement, reducing maintenance costs. The synergistic effect of all components extends the hinge life and ensures the door's sealing performance while maintaining a lightweight design.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight automotive hinge assembly structure, comprising a first hinge body (1) and a second hinge body (2), wherein the first hinge body (1) and the second hinge body (2) are used in conjunction, and the first hinge body (1) and the second hinge body (2) are movably connected by a pin (3), characterized in that, The connection positions of the first hinge body (1) and the second hinge body (2) with the pin (3) are provided with a split wrapping structure; The split-wrap structure includes a limiting tube (4), and the first hinge body (1) and the second hinge body (2) are provided with insertion holes. The pin (3) passes through the insertion holes. The insertion holes of the first hinge body (1) and the second hinge body (2) are provided with socket sleeves (5). The limiting tube (4) is installed on the socket sleeves (5). The side of the socket sleeves (5) is provided with positioning holes. The side of the limiting tube (4) is provided with fixing holes. The fixing holes correspond to the positioning holes. The positioning holes are fitted with fixing screws (6) and connected to the fixing holes. The split-wrapping structure also includes a stabilizing hole (7). The center axis of the limiting tube (4) is provided with a stabilizing hole (7). The pin (3) passes through the stabilizing hole (7). The stabilizing hole (7) and the pin (3) are in transition fit.

2. The lightweight automotive hinge assembly structure according to claim 1, characterized in that, The socket sleeve (5) is a polygonal groove and is integrally formed with the first hinge body (1) or the second hinge body (2).

3. The lightweight automotive hinge assembly structure according to claim 2, characterized in that, The root of the limiting tube (4) is provided with a polygonal structured locking block (8) corresponding to the socket sleeve (5).

4. The lightweight automotive hinge assembly structure according to claim 3, characterized in that, A pair of limiting nuts (9) are installed at both ends of the pin (3), and a pair of washers (10) are provided on the inner side of the pair of limiting nuts (9).

5. The lightweight automotive hinge assembly structure according to claim 4, characterized in that, The diameter of the stabilizing hole (7) is smaller than the diameter of the insertion hole.

6. The lightweight automotive hinge assembly structure according to claim 5, characterized in that, The number of positioning holes and fixing holes are matched, and the number of positioning holes and fixing holes is more than one pair. The positioning holes are arranged in a ring array on the socket sleeve (5), and the fixing holes are arranged in a ring array on the limiting tube (4).

Images