Detachable fastener for automobile chassis

Abstract

The utility model discloses a detachable fastener for an automobile chassis, which comprises an automobile chassis fastening bolt, the outer cambered surface of the automobile chassis fastening bolt is in threaded connection with an automobile chassis fastening nut, the outer cambered surface of the automobile chassis fastening bolt is respectively and movably sleeved with a flat gasket and an elastic gasket, and the detachable fastener further comprises a protection mechanism; the protection mechanism comprises circular rings, rubber sleeves and springs, the circular rings are movably arranged on the outer arc faces of fastening bolts of the automobile chassis in a sleeving mode, and the rubber sleeves are arranged on the outer side faces, away from each other, of the two circular rings through the springs. The fastener can be effectively prevented from being corroded by the external environment, the service life of the automobile chassis is prolonged, dust and dirt are prevented from being accumulated on the surfaces of the nut and the hexagonal head of the fastener, and subsequent disassembly of the fastener is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of automotive chassis technology, specifically to a detachable fastener for automotive chassis. Background Technology

[0002] The car chassis is a core component of a vehicle, acting as its "limbs and brain," directly affecting its handling, comfort, and safety. For example, the type of suspension system determines the vehicle's ride comfort and stability. Furthermore, chassis maintenance is crucial for extending its lifespan. During chassis assembly, fasteners are used to connect the various components. In the prior art, authorized publication number CN 219299751... U proposed an anti-vibration fastener for automotive chassis, comprising a rod body, one end of which is integrally formed with a bolt head, and the other end of which is integrally formed with a threaded rod. The outer surface of the threaded rod is provided with external threads, and multiple sealing plates are provided at the tooth tips of the external threads. A pressure ring is sleeved on the outer wall of the rod body, and a spring for elastic expansion and contraction is welded to the upper surface of the pressure ring. The top of the spring is welded to the bolt head. Although this effectively solves the problem of fastener loosening caused by vibration during vehicle operation, the fastener is directly exposed to the outside during use, and the external environment is severely corroded by the automotive chassis fastener, affecting the service life of the fastener. Moreover, dust and dirt easily accumulate at the nut and hexagonal head of the fastener, affecting subsequent disassembly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a detachable fastener for automobile chassis. The fastener's nut and hexagonal head are hidden by an elastically limiting rubber sleeve, which can effectively prevent external environmental corrosion of the fastener and prevent dust and dirt from accumulating on the surface of the fastener's nut and hexagonal head, thus facilitating subsequent disassembly of the fastener. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a detachable fastener for an automobile chassis, comprising an automobile chassis fastening bolt, wherein an automobile chassis fastening nut is threadedly connected to the outer arc surface of the automobile chassis fastening bolt, and a flat washer and a spring washer are respectively movably sleeved on the outer arc surface of the automobile chassis fastening bolt, and a protective mechanism is also included.

[0005] Protective mechanism: It includes rings, rubber sleeves, and springs. The rings are movably fitted onto the outer arc surfaces of the vehicle chassis fastening bolts. The opposing outer surfaces of the two rings are fitted with rubber sleeves via springs. The hexagonal heads of the vehicle chassis fastening bolts and the vehicle chassis fastening nuts are installed in conjunction with the rubber sleeves. The elastically limited rubber sleeves conceal the nuts and hexagonal heads of the fasteners. Compared to the installation method where the fasteners are directly exposed, this can effectively prevent external environmental corrosion of the fasteners, improve the service life of the vehicle chassis, prevent dust and dirt from accumulating on the surface of the nuts and hexagonal heads of the fasteners, and facilitate subsequent disassembly of the fasteners.

[0006] Furthermore, the protective mechanism also includes a rotating shell, a sliding groove, a limiting plate, and guide posts. The rotating shell is respectively disposed on the outer arc surface of the rubber sleeve, and the interior of the rotating shell is provided with a sliding groove. The guide posts are respectively disposed on the opposite outer surfaces of the two rings, and the ends of the guide posts are provided with limiting plates. The limiting plates are slidably connected to the interior of the sliding grooves. Springs are respectively disposed between the limiting plates and the inner walls of the sliding grooves, and the springs are movably sleeved on the outer arc surface of the guide posts to provide guiding support for the position adjustment of the rubber sleeve.

[0007] Furthermore, the protective mechanism also includes connecting rings, which are respectively disposed on the left and right ends of the outer side of the rotating shell. The inner arc surface of the connecting ring is fixedly connected to the outer arc surface of the adjacent rubber sleeve, so as to facilitate the rotating shell to move the rubber sleeve.

[0008] Furthermore, the slide includes a limiting slide and a closing slide. The limiting slide is respectively disposed inside the rotating shell. The limiting plate is laterally slidably connected to the limiting slide. The closing slide is respectively disposed on the inner wall of the limiting slide near the ring. Springs are respectively disposed between the inner wall of the closing slide and the limiting plate to limit the movement range of the limiting plate.

[0009] Furthermore, the slide rail also includes a rotating groove, which is respectively disposed at one end of the limiting slide rail near the closing groove. The rotating groove is installed in conjunction with the limiting plate to provide space for the rotation of the limiting plate.

[0010] Furthermore, the inner arc surface of the rubber sleeve is provided with a silicone pad, and the inner arc surface of the silicone pad is hexagonal, which increases the friction between the rubber sleeve and the hexagonal head of the car chassis fastening bolt and the car chassis fastening nut.

[0011] Furthermore, it also includes slots, which are respectively disposed on opposite outer sides of the two rings, and the protruding rings on opposite inner sides of the two rubber sleeves are respectively inserted into the adjacent slots, so that the contact between the rubber sleeves and the rings is tighter.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This detachable fastener for automobile chassis has the following advantages:

[0013] By using a flexible rubber sleeve to conceal the nut and hexagonal head of the fastener, compared to the direct exposure of the fastener during installation, it can effectively prevent external environmental corrosion of the fastener, improve the service life of the car chassis, prevent dust and dirt from accumulating on the surface of the nut and hexagonal head of the fastener, and facilitate subsequent disassembly of the fastener. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall device of this utility model after an explosion.

[0016] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the side cross-section of the slide groove of this utility model;

[0018] Figure 5 This is a structural schematic diagram of the front view of the slide groove of this utility model.

[0019] In the diagram: 1. Car chassis fastening bolt, 2. Car chassis fastening nut, 3. Flat washer, 4. Spring washer, 5. Protective mechanism, 51. Ring, 52. Rubber sleeve, 53. Spring, 54. Rotary shell, 55. Slide groove, 551. Limiting slide groove, 552. Rotary groove, 553. Closing groove, 56. Limiting plate, 57. Guide post, 58. Connecting ring, 6. Silicone pad, 7. Slot. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5This embodiment provides a technical solution: a detachable fastener for an automobile chassis, including an automobile chassis fastening bolt 1, an automobile chassis fastening nut 2 threadedly connected to the outer arc surface of the automobile chassis fastening bolt 1, the automobile chassis fastening bolt 1 is passed through the connecting hole on the surface of the automobile chassis, the automobile chassis fastening nut 2 is rotated, and the connecting part is fixed on the automobile chassis by the cooperation between the automobile chassis fastening nut 2 and the hexagonal head of the automobile chassis fastening bolt 1. The outer arc surface of the automobile chassis fastening bolt 1 is respectively movably fitted with a flat washer 3 and a spring washer 4. The flat washer 3 increases the contact area between the fastener and the connecting part and disperses the pressure. The elastic force generated by the elastic deformation of the flat washer 3 presses against the nut, making it difficult for it to fall off. It also includes a protective mechanism 5.

[0022] Protective mechanism 5 includes a ring 51, a rubber sleeve 52, and a spring 53. The rings 51 are movably fitted onto the outer arc surface of the chassis fastening bolts 1. Rubber sleeves 52 are provided on the opposing outer surfaces of the two rings 51 via the springs 53. The hexagonal heads of the chassis fastening bolts 1 and the chassis fastening nuts 2 are installed in conjunction with the rubber sleeves 52. During use, the springs 53 restrict the position between the rubber sleeves 52 and the rings 51. Through the cooperation of the rubber sleeves 52 and the rings 51, the hexagonal heads of the chassis fastening bolts 1 and the chassis fastening nuts 2 are concealed, preventing direct exposure and blocking external corrosion of the fasteners. Protective mechanism 5 also includes a rotating shell 54, a sliding groove 55, and a limiting plate. 56 and guide posts 57, and rotating shell 54 are respectively disposed on the outer arc surface of rubber sleeve 52. Rotating shell 54 has a sliding groove 55 inside. Guide posts 57 are respectively disposed on opposite outer sides of two circular rings 51. Each end of guide post 57 has a limiting plate 56, which is slidably connected to the inside of the sliding groove 55. Springs 53 are respectively disposed between the limiting plate 56 and the inner wall of the sliding groove 55. Springs 53 are movably sleeved on the outer arc surface of guide posts 57 and slide within the sliding groove 55 via the limiting plate 56, providing guiding support for the movement of rubber sleeve 52. Guide posts 57 provide guiding support for the extension and retraction of springs 53. The protective mechanism 5 also includes connecting rings 58, which are respectively disposed on the outer side of rotating shell 54. At both ends, the inner arc surface of the connecting ring 58 is fixedly connected to the outer arc surface of the adjacent rubber sleeve 52, facilitating the application of force by the rotating shell 54 to the rubber sleeve 52 and making the limiting of the rubber sleeve 52 more secure. The slide groove 55 includes a limiting slide groove 551 and a closing groove 553. The limiting slide groove 551 is respectively set inside the rotating shell 54. The limiting plate 56 is laterally slidably connected to the limiting slide groove 551. The closing groove 553 is respectively set on the inner wall of the limiting slide groove 551 near the ring 51. The spring 53 is respectively set between the inner wall of the closing groove 553 and the limiting plate 56 to limit the movement trajectory of the limiting plate 56. The slide groove 55 also includes a rotating groove 552, which is respectively set on the inner wall of the limiting slide groove 551 near the closing groove 553. At one end, the rotating groove 552 is installed in conjunction with the limiting plate 56 to provide space for the rotation of the limiting plate 56. The inner arc surface of the rubber sleeve 52 is provided with a silicone pad 6. The inner arc surface of the silicone pad 6 is hexagonal. Through the contact between the silicone pad 6 and the hexagonal head of the car chassis fastening bolt 1 and the car chassis fastening nut 2, the gap between the rubber sleeve 52 and the hexagonal head of the car chassis fastening bolt 1 and the car chassis fastening nut 2 is reduced, thereby improving the protective effect. It also includes a slot 7, which is respectively set on the opposite outer sides of the two rings 51. The protruding rings on the opposite inner sides of the two rubber sleeves 52 are respectively inserted into the adjacent slot 7. Through the insertion of the protruding rings into the slot 7, the contact between the rubber sleeve 52 and the ring 51 is made tighter, thereby improving the protective effect.

[0023] The working principle of the detachable fastener for automobile chassis provided by this utility model is as follows: In use, the automobile chassis fastening bolt 1 is passed through the connecting hole on the surface of the automobile chassis. At this time, the rubber sleeve 52 and the ring 51 are misaligned. Under the elastic force of the spring 53, the limiting plate 56 is positioned inside the limiting groove 551, restricting the rotation of the limiting plate 56 and the guide post 57, and limiting the angle between the rubber sleeve 52 and the ring 51. This prevents the rubber sleeve 52 from affecting the rotation of the automobile chassis fastening bolt 1 and the automobile chassis fastening nut 2. Then, the automobile chassis fastening nut 2 is rotated. Through the engagement of the automobile chassis fastening nut 2 and the hexagonal head of the automobile chassis fastening bolt 1, the connector is fixed on the automobile chassis. After fixing, the rubber sleeve 52 is pulled to move laterally until the limiting plate 56 enters the rotating groove 552. Internally, the inner wall of the rotating groove 552 restricts the movement range of the limiting plate 56, making it easier to determine the position of the limiting plate 56. At this time, the limiting plate 56 can be rotated. After the limiting plate 56 rotates 180 degrees, the limiting plate 56 re-aligns with the limiting groove 551. At this time, the ring 51 and the rubber sleeve 52 are located on the same axis. Under the elastic force of the spring 53, the rubber sleeve 52 moves towards the ring 51. When the rubber sleeve 52 contacts the ring 51, the cooperation between the rubber sleeve 52 and the ring 51 hides the hexagonal head of the car chassis fastening bolt 1 and the car chassis fastening nut 2, preventing them from being directly exposed and blocking the corrosion of the fasteners by the external environment. When it is necessary to disassemble the fasteners, simply repeat the above operation in reverse to reduce the impact of the protective components on the disassembly of the fasteners.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A detachable fastener for an automobile chassis, comprising an automobile chassis fastening bolt (1), an automobile chassis fastening nut (2) is threadedly connected to the outer arc surface of the automobile chassis fastening bolt (1), a flat washer (3) and an elastic washer (4) are movably sleeved on the outer arc surface of the automobile chassis fastening bolt (1) respectively, characterized in that: The protection mechanism (5) comprises a circular ring (51), a rubber sleeve (52) and a spring (53), the circular ring (51) is movably sleeved on the outer arc surface of the automobile chassis fastening bolt (1), the outer side surfaces of the two circular rings (51) are provided with the rubber sleeves (52) through the springs (53), and the hexagonal head of the automobile chassis fastening bolt (1) and the automobile chassis fastening nut (2) are matched and installed with the rubber sleeves (52). The protection mechanism (5) further comprises a rotating shell (54), a sliding groove (55), a limiting disc (56) and a guide column (57), the rotating shell (54) is arranged on the outer arc surface of the rubber sleeve (52), the inner part of the rotating shell (54) is provided with the sliding groove (55), the guide column (57) is arranged on the outer side surface of the two circular rings (51), the end of the guide column (57) is provided with the limiting disc (56), the limiting disc (56) is slidably connected to the inner part of the sliding groove (55), and the spring (53) is arranged between the limiting disc (56) and the inner wall of the sliding groove (55).

2. A removable fastener for use in an automotive chassis according to claim 1, wherein: The protection mechanism (5) further comprises a connecting ring (58), the connecting ring (58) is arranged at the left and right ends of the outer side surface of the rotating shell (54), and the inner arc surface of the connecting ring (58) is fixedly connected with the outer arc surface of the adjacent rubber sleeve (52).

3. A removable fastener for use in an automotive chassis according to claim 2, wherein: The sliding groove (55) comprises a limiting sliding groove (551) and a converging groove (553), the limiting sliding groove (551) is arranged in the inner part of the rotating shell (54), the limiting disc (56) is transversely slidably connected with the limiting sliding groove (551), and the converging groove (553) is arranged in the inner wall of the limiting sliding groove (551) close to the circular ring (51).

4. A removable fastener for use in an automotive chassis according to claim 2, wherein: The sliding groove (55) further comprises a rotating groove (552), the rotating groove (552) is arranged at one end of the limiting sliding groove (551) close to the converging groove (553), and the rotating groove (552) is matched and installed with the limiting disc (56).

5. A removable fastener for use in an automotive chassis according to claim 4, wherein: The inner arc surface of the rubber sleeve (52) is provided with a silica gel pad (6), and the inner arc surface of the silica gel pad (6) is hexagonal.

6. A removable fastener for use in an automotive chassis according to claim 1, wherein: The protection mechanism (5) further comprises a slot (7), the slot (7) is arranged on the outer side surface of the two circular rings (51), and the protruding ring on the opposite inner side surface of the two rubber sleeves (52) is inserted into the adjacent slot (7).

7. A removable fastener for use in an automotive chassis according to claim 1, wherein: ​

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