Corrosion-resistant zinc-plated fastener for automobiles

Abstract

The utility model relates to the technical field of automobile fastening, especially relates to a corrosion -resistant galvanized fastener for automobile. Its technical scheme includes screw rod, one end of screw rod is fixedly connected with screw head, still include the movable sleeve of covering screw head of one end of screw rod, the one end of movable sleeve is opened with the clamping hole, the other end of movable sleeve is opened with the through -hole of sleeve joint of screw head, the inner wall of through -hole and the outer wall of screw head are bonded through the glue. The utility model cooperates screw rod, screw head, movable sleeve, baffle mechanism, resilience mechanism etc. structure, and the screw rod is screwed into the installation position when using, and the snap ring is driven to resist the limit snap ring by screw head, and the circular structure is formed under the second spring action along the sliding block sliding of sector sliding plate, and the sector clamping plate is pushed into the clamping hole through the first spring, so that the movable sleeve end face is smooth, solve the single color shape of screw, the problem of exposure and abrupt, promote the compatibility with surrounding components, satisfy the demand of exquisite integration.

Description

Technical Field

[0001] This utility model relates to the field of automotive fastening technology, and in particular to a corrosion-resistant galvanized fastener for automobiles. Background Technology

[0002] Traditional automobiles are constantly exposed to various environments, and their chassis and body typically use screws as fasteners. However, some screws are currently susceptible to corrosion from rainwater and road salt, which accelerates the rusting of metal screws. A galvanized layer forms a physical barrier, preventing moisture and oxygen from contacting the screws, while simultaneously delaying corrosion through electrochemical protection, thus giving automotive screws corrosion resistance.

[0003] In current technology, the screws used in automobiles are relatively uniform in color and shape. Common screw colors are mostly silver-white or gray-black, and shapes are primarily standard pan head, countersunk head, and cylindrical head. Furthermore, screws are usually exposed after installation. In interior panels, they clash with the refined interior materials and delicate surface finishes; in exterior trim, their presence disrupts the smoothness of the body lines and overall aesthetics. In today's pursuit of ultimate aesthetics, this disharmony becomes increasingly jarring in areas where beauty is paramount, failing to meet consumers' demands for a refined and integrated automotive appearance. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing automotive screws, which are limited in color and shape, are exposed after installation, are inconsistent with interior and exterior trims, and stand out in aesthetically pleasing areas, failing to meet the requirements of refined integration. This invention proposes a corrosion-resistant galvanized fastener for automobiles.

[0005] The technical solution of this utility model is as follows: A corrosion-resistant galvanized fastener for automobiles includes a screw rod, one end of which is fixedly connected to a screw head. It also includes: a movable sleeve movably fitted over one end of the screw rod, covering the screw head; one end of the movable sleeve has a locking hole, and the other end of the movable sleeve has a through hole for engaging with the screw head; the inner wall of the through hole is bonded to the outer wall of the screw head with adhesive; and a baffle mechanism installed inside the movable sleeve, which blocks the locking hole when opened, and the baffle mechanism has a spring-loaded mechanism that engages with the locking hole.

[0006] Optionally, the baffle mechanism includes multiple pairs of sliders arranged in a circular array and fixedly connected inside the movable sleeve. A retaining ring is fixedly sleeved on the screw head. Each pair of sliders has a limiting block slidably connected inside and held by the retaining ring. A fan-shaped sliding plate is fixedly connected to the top of each limiting block. Each fan-shaped sliding plate has a notch. A second spring is fixedly connected inside each notch. The end of the second spring away from the inner wall of the notch is fixedly connected to the inner wall of the movable sleeve.

[0007] Optionally, the rebound mechanism includes a mounting groove formed on the fan-shaped sliding plate. The mounting groove is provided with a telescopic groove inside. A first spring is provided inside the telescopic groove. One end of the first spring is fixedly connected to the inner wall of the telescopic groove, and the other end of the first spring is fixedly connected to a fan-shaped card plate that is tightly inserted into a card hole.

[0008] Optionally, each of the retaining rings is provided with a cross-shaped screw groove.

[0009] Optionally, the movable sleeve is internally fixedly connected with a limiting ring corresponding to the perforation.

[0010] Optionally, the end of the limiting block that abuts against the outer wall of the retaining ring has an arc-shaped groove, and the arc-shaped groove is tightly connected to the outer wall of the retaining ring.

[0011] Optionally, both sliders are symmetrically arranged with the limiting block as the center.

[0012] Optionally, the mounting slot has the same cross-sectional dimensions as the sector-shaped card plate.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This utility model utilizes the cooperation of a screw, screw head, movable sleeve, baffle mechanism, and spring-loaded mechanism. In use, the screw is screwed into the installation position, the screw head drives the retaining ring to abut against the limiting retaining ring, and the fan-shaped slide plate slides along the slider under the action of the second spring to form a circular structure. The fan-shaped retaining plate is pushed into the retaining hole by the first spring, making the end face of the movable sleeve smooth. This solves the problem of the screw being monotonous in color and shape and being exposed and abrupt, improves the coordination with surrounding components, and meets the requirements of exquisite integration. Attached Figure Description

[0015] Figure 1 A structural schematic diagram of a corrosion-resistant galvanized fastener for automobiles according to this utility model is provided;

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 for Figure 2 A schematic diagram of the split structure;

[0018] Figure 4 for Figure 3 A partial structural diagram.

[0019] Reference numerals: 1. Screw; 11. Screw head; 12. Snap ring; 13. Cross screw groove; 14. Limit snap ring; 2. Movable sleeve; 21. Slider; 22. Fan-shaped slide plate; 23. Mounting groove; 231. Telescopic groove; 232. First spring; 24. Limiting block; 25. Notch; 26. Second spring; 27. Fan-shaped plate; 28. Snap hole; 29. ​​Through hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] like Figures 1 to 4 As shown, this utility model proposes a corrosion-resistant galvanized fastener for automobiles, including a screw 1. A screw head 11 is fixedly connected to one end of the screw 1. The screw head 11 is fixedly connected to the screw 1, providing a force point for the screw, facilitating tightening with tools, and driving the movement of a retaining ring 12. A movable sleeve 2 is movably fitted onto one end of the screw 1, covering the screw head 11. The end face of the movable sleeve 2 can be smoothed and aesthetically pleasing through a baffle mechanism and a spring-loaded mechanism, improving coordination. A limiting retaining ring 14 corresponding to a through hole 29 is fixedly connected inside the movable sleeve 2. The limiting retaining ring 14 is fixed inside the movable sleeve 2, corresponding to the through hole 29, restricting the movement of the screw head 11 and the retaining ring 12, allowing the retaining ring 12 to disengage from the limiting retaining block 24. A retaining hole 28 is opened at one end of the movable sleeve 2, allowing a fan-shaped retaining plate 27 to be inserted, making the end face of the movable sleeve 2 smooth. The other end of the movable sleeve 2 has a through hole 29 for engaging with the screw head 11. The through hole 29 is located at the other end of the movable sleeve 2, engages with the screw head 11, and its inner wall is bonded to the outer wall of the screw head 11 with glue, thus achieving the initial connection between the movable sleeve 2 and the screw head 11. The inner wall of the through hole 29 is bonded to the outer wall of the screw head 11 with glue.

[0028] Among them, such as Figures 1 to 4As shown, the movable sleeve 2 is equipped with a baffle mechanism that blocks the locking hole 28 when opened. The baffle mechanism includes multiple pairs of sliders 21 arranged in a circular array and fixedly connected inside the movable sleeve 2. The sliders 21 are fixed inside the movable sleeve 2, and each pair is arranged in a circular array to provide sliding tracks for the limiting block 24 and the fan-shaped slide plate 22. Each pair of sliders 21 is symmetrically arranged with the limiting block 24 as the center. A retaining ring 12 is fixedly sleeved on the screw head 11. The retaining ring 12 is fixedly sleeved on the screw head 11 and abuts against the limiting block 24 during installation, and finally abuts against the limiting retaining ring 14, triggering the action of the baffle mechanism. Each retaining ring 12 has a cross-shaped screw groove 13, which is provided to facilitate tightening the screw with a Phillips screwdriver. Each pair of sliders 21 has a limiting block 24 slidably connected inside, which is held in place by a retaining ring 12. The limiting block 24 is slidably connected inside the slider 21, with one end fixed to the fan-shaped slide plate 22 and the other end held in place by the retaining ring 12, thus moving the fan-shaped slide plate 22. An arc-shaped groove is formed at the end of the limiting block 24 that abuts against the outer wall of the retaining ring 12. The arc-shaped groove is tightly connected to the outer wall of the retaining ring 12. A fan-shaped slide plate 22 is fixedly connected to the top of each limiting block 24. The fan-shaped slide plate 22 is fixedly connected to the limiting block 24 and can slide along the slider 21. Multiple fan-shaped slide plates 22 are connected to form a complete circular structure to cover the screw head 11. Each fan-shaped slide plate 22 has a notch 25, which houses a second spring 26, providing space for its installation and deformation. A second spring 26 is fixedly connected inside each notch 25. One end of the second spring 26 is connected to the inner wall of the notch 25, and the other end is connected to the inner wall of the movable sleeve 2, providing elastic thrust to push the fan-shaped slide plate 22 to slide back to its original position. The end of the second spring 26 away from the inner wall of the notch 25 is fixedly connected to the inner wall of the movable sleeve 2.

[0029] In addition, such as Figures 1 to 4 As shown, the baffle mechanism is equipped with a spring-loaded mechanism that engages with the locking hole 28. The spring-loaded mechanism includes a mounting groove 23 formed on the fan-shaped sliding plate 22. The mounting groove 23 has a telescopic groove 231 inside, providing installation space for the spring-loaded mechanism. The mounting groove 23 has the same cross-sectional dimensions as the fan-shaped locking plate 27. The mounting groove 23 has a telescopic groove 231 inside, accommodating the first spring 232 and providing space for its extension and retraction. The first spring 232 is located inside the telescopic groove 231. One end of the first spring 232 is connected to the inner wall of the telescopic groove 231, and the other end is connected to the fan-shaped locking plate 27, providing elastic thrust to ensure the fan-shaped locking plate 27 is tightly engaged with the locking hole 28. One end of the first spring 232 is fixedly connected to the inner wall of the telescopic groove 231, and the other end of the first spring 232 is fixedly connected to a fan-shaped card plate 27 that is tightly inserted into the card hole 28. The fan-shaped card plate 27 is connected to the first spring 232 and is tightly inserted into the card hole 28 under the action of the first spring 232. Multiple fan-shaped card plates 27 form a circular structure to block the card hole 28.

[0030] In this embodiment, when using the automotive corrosion-resistant galvanized screw, the screw 1 is screwed into the installation position, and the movable sleeve 2 abuts against the surface of the connector, thereby causing the screw 1 to drive the screw head 11 to break free from the adhesion between it and the through hole 29. Then, the screw head 11 drives the retaining ring 12 to abut against the limiting retaining ring 14. At this time, the retaining ring 12 cannot hold all the limiting blocks 24, and the fan-shaped slide plates 22 are all pushed by the elastic force of the second spring 26 in the notch 25, so that the fan-shaped slide plates 22 slide along the slider 21 towards the cross screw groove 13 through the corresponding limiting blocks 24, until each fan-shaped slide plate 22 is connected and forms a complete circular structure. Subsequently, the fan-shaped sliding plate 22 also drives the fan-shaped clamping plate 27 in the mounting groove 23 to move. At this time, the circular structure formed by multiple fan-shaped clamping plates 27 coincides with the clamping hole 28. Finally, each fan-shaped clamping plate 27 is tightly inserted into the clamping hole 28 by the elastic thrust of the first spring 232 in the telescopic groove 231, so that the end face of the movable sleeve 2 close to the clamping hole 28 is smooth and beautiful.

[0031] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A corrosion-resistant galvanized fastener for automobiles, comprising a screw (1), one end of which is fixedly connected to a screw head (11), characterized in that, Also includes: A movable sleeve (2) is movably fitted onto one end of the screw (1) and covers the screw head (11). One end of the movable sleeve (2) has a locking hole (28), and the other end of the movable sleeve (2) has a through hole (29) that engages with the screw head (11). The inner wall of the through hole (29) is bonded to the outer wall of the screw head (11) with glue. The baffle mechanism is installed inside the movable sleeve (2) and blocks the card hole (28) after opening. The baffle mechanism is provided with a spring mechanism that can be inserted into the card hole (28).

2. The corrosion-resistant galvanized fastener for automobiles according to claim 1, characterized in that, The baffle mechanism includes multiple pairs of sliders (21) arranged in a circular array and fixedly connected inside the movable sleeve (2). A retaining ring (12) is fixedly sleeved on the screw head (11). Each pair of sliders (21) is slidably connected to a limiting block (24) that is held by the retaining ring (12). A fan-shaped slide plate (22) is fixedly connected to the top of each limiting block (24). A notch (25) is opened on each fan-shaped slide plate (22). A second spring (26) is fixedly connected inside each notch (25). The end of the second spring (26) away from the inner wall of the notch (25) is fixedly connected to the inner wall of the movable sleeve (2).

3. The corrosion-resistant galvanized fastener for automobiles according to claim 1, characterized in that, The rebound mechanism includes a mounting groove (23) on a fan-shaped sliding plate (22). The mounting groove (23) is provided with a telescopic groove (231) inside. The telescopic groove (231) is provided with a first spring (232) inside. One end of the first spring (232) is fixedly connected to the inner wall of the telescopic groove (231), and the other end of the first spring (232) is fixedly connected to a fan-shaped card plate (27) that is tightly inserted into a card hole (28).

4. The corrosion-resistant galvanized fastener for automobiles according to claim 2, characterized in that, Each retaining ring (12) is provided with a cross-shaped screw groove (13).

5. The corrosion-resistant galvanized fastener for automobiles according to claim 1, characterized in that, The movable sleeve (2) is internally fixedly connected with a limiting ring (14) corresponding to the perforation (29).

6. The corrosion-resistant galvanized fastener for automobiles according to claim 2, characterized in that, The limiting block (24) has an arc-shaped groove at one end that abuts against the outer wall of the retaining ring (12), and the arc-shaped groove is tightly connected to the outer wall of the retaining ring (12).

7. The corrosion-resistant galvanized fastener for automobiles according to claim 2, characterized in that, The pair of sliders (21) are symmetrically arranged with the limiting block (24) as the center.

8. The corrosion-resistant galvanized fastener for automobiles according to claim 3, characterized in that, The mounting groove (23) has the same cross-sectional dimensions as the fan-shaped card plate (27).

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