A high-strength bolt for a vehicle

Abstract

The utility model relates to bolt technical field discloses a high -strength bolt suitable for car, including bolt head, the first fixed sheet is installed in bolt head lower extreme, the first fixed sheet one side is installed telescopic control device, telescopic control device outer wall is installed with antiskid pad, telescopic control device one side fixedly connected with second telescopic shell, second telescotic shell outer wall sets up multiple groups of sliding groove, second telescopic shell one side swing joint has third telescopic shell, the inside installation of third telescopic shell has multiple groups of sliding convex post, third telescopic shell one side sliding connection has first telescopic shell, through setting up telescopic control device, it is convenient for making screw rod realizes telescopic function, makes the length of bolt realizes adjustable, significantly promotes assembly adaptability, optimization maintenance convenience, need not completely dismounts and can carry out length compensation, is applicable to the narrow space or the automobile parts of frequently overhauled.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically a high-strength bolt suitable for automobiles. Background Technology

[0002] High-strength automotive bolts, as critical fasteners, are widely used in core components such as engines, chassis, and transmission systems. Their performance directly affects the safety and reliability of the entire vehicle. The modern automotive industry has placed higher demands on the strength, fatigue resistance, and anti-loosening ability of bolts. These bolts typically use high-performance materials such as alloy steel and titanium alloys, and improve their mechanical properties through processes such as heat treatment and surface coating. At the same time, they employ precision thread forming technology to ensure fitting accuracy, maintaining a stable connection even under complex working conditions such as extreme temperatures, vibrations, and corrosion.

[0003] However, it still has some drawbacks, such as: a large number of bolt sizes can be divided according to the bolt rod length, and the adaptability of bolts of a single length is low.

[0004] To address the aforementioned problems, this application proposes a high-strength bolt suitable for automobiles. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength bolt suitable for automobiles, so as to solve the problem of rigid bolt length mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-strength bolt suitable for automobiles, including a bolt head, a first fixing plate installed at the lower end of the bolt head, and a telescopic control device installed on one side of the first fixing plate. Through the telescopic control device, the bolt can be telescopic, making the bolt length adjustable, significantly improving assembly adaptability, optimizing maintenance convenience, and allowing length compensation without complete disassembly. It is suitable for automobile parts in confined spaces or requiring frequent maintenance.

[0007] Preferably, the telescopic control device has an anti-slip pad installed on its outer wall, a second telescopic housing is fixedly connected to one side of the telescopic control device, the outer wall of the second telescopic housing is provided with multiple sets of sliding grooves, and a third telescopic housing is movably connected to one side of the second telescopic housing.

[0008] Preferably, the third telescopic outer shell has multiple sets of sliding protrusions installed inside, and the first telescopic outer shell is slidably connected to one side of the third telescopic outer shell. One end of the first telescopic outer shell is fixedly connected to a threaded rod, which is threadedly connected to a nut. The inner wall of the nut has an internal threaded wall.

[0009] Preferably, the high-strength bolt suitable for automobiles according to the claim is characterized in that: the inner wall of the telescopic control device is provided with a rotating threaded wall, an external gear is installed inside the telescopic control device, there are two sets of external gears, an internal gear meshes between the two sets of external gears, an extension column is fixedly connected to one end of the internal gear, and a fixing rod is fixedly connected to one end of the extension column.

[0010] Preferably, a first rotating rod is movably connected to the outer wall of the fixed rod, the outer wall of the first rotating rod is provided with multiple sets of sliding grooves, a second rotating rod is slidably connected to the outer wall of the first rotating rod, the outer wall of the second rotating rod is provided with spiral patterns, and a cavity is provided inside the second rotating rod as the telescopic space of the first rotating rod.

[0011] Preferably, the inner wall of the second telescopic outer shell is provided with a short threaded wall, the inner wall of the second telescopic outer shell meshes with the outer wall of the second rotating rod, the inner wall of the first rotating rod is threadedly connected to a third rotating rod, one end of the second telescopic outer shell is provided with a second fixing piece, and the bottom end of the third rotating rod is fixedly connected to the first telescopic outer shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model, through the provision of a telescopic control device, facilitates the telescopic function of the screw, making the bolt length adjustable, significantly improving assembly adaptability, optimizing maintenance convenience, and allowing for length compensation without complete disassembly. It is suitable for automotive parts in confined spaces or requiring frequent maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an integral structure of a high-strength bolt suitable for automobiles according to this utility model;

[0015] Figure 2 This is a schematic diagram of the extension structure of a telescopic device for high-strength bolts suitable for automobiles according to this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a telescopic device for high-strength bolts suitable for automobiles according to this utility model;

[0017] Figure 4 This is a schematic diagram of the planar structure of a telescopic device for high-strength bolts suitable for automobiles according to this utility model.

[0018] In the diagram: 1. Bolt head; 2. Telescopic control device; 3. First fixing plate; 4. Anti-slip pad; 5. First telescopic outer shell; 6. Threaded rod; 7. Nut; 8. Internal threaded wall; 9. Second telescopic outer shell; 10. Third telescopic outer shell; 11. Sliding groove; 12. Sliding protrusion; 13. External gear; 14. Rotating threaded wall; 15. Extension column; 16. First rotating rod; 17. Second rotating rod; 20. Cavity; 22. Fixing rod; 131. Internal gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1-4 A high-strength bolt suitable for automobiles includes a bolt head 1, characterized in that: a first fixing plate 3 is installed at the lower end of the bolt head 1, and a telescopic control device 2 is installed on one side of the first fixing plate 3.

[0021] In this embodiment, as shown Figures 1-2 As shown, the telescopic control device 2 has an anti-slip pad 4 installed on its outer wall. A second telescopic housing 9 is fixedly connected to one side of the telescopic control device 2. Multiple sets of sliding grooves 11 are provided on the outer wall of the second telescopic housing 9. A third telescopic housing 10 is movably connected to one side of the second telescopic housing 9. Multiple sets of sliding protrusions 12 are installed inside the third telescopic housing 10. A first telescopic housing 5 is slidably connected to one side of the third telescopic housing 10. A threaded rod 6 is fixedly connected to one end of the first telescopic housing 5. The threaded rod 6 is threadedly connected to a nut 7. The inner wall of the nut 7 has an internal threaded wall 8.

[0022] In this embodiment, as shown Figures 3-4 As shown, the inner wall of the telescopic control device 2 is provided with a rotating threaded wall 14. An external gear 13 is installed inside the telescopic control device 2. There are two sets of external gears 13. An internal gear 131 meshes between the two sets of external gears 13. An extension column 15 is fixedly connected to one end of the internal gear 131. A fixed rod 22 is fixedly connected to one end of the extension column 15. A first rotating rod 16 is movably connected to the outer wall of the fixed rod 22. The outer wall of the first rotating rod 16 is provided with multiple sets of sliding grooves. A second rotating rod 17 is slidably connected to the outer wall of the first rotating rod 16. The outer wall of the second rotating rod 17 is provided with a spiral pattern. A cavity 20 is provided inside the second rotating rod 17 as the telescopic space for the first rotating rod 16. The inner wall of the second telescopic outer shell 9 is provided with a short threaded wall 21. The inner wall of the second telescopic outer shell 9 meshes with the outer wall of the second rotating rod 17. A third rotating rod 18 is threadedly connected to the inner wall of the first rotating rod 16. A second fixing piece 19 is provided at one end of the second telescopic outer shell 9. The bottom end of the third rotating rod 18 is fixedly connected to the first telescopic outer shell 5.

[0023] Working principle

[0024] A high-strength bolt suitable for automobiles features a telescopic control device 2 that allows for easy extension and retraction of the bolt, enabling adjustable bolt length. This significantly improves assembly adaptability and optimizes maintenance convenience, allowing for length compensation without complete disassembly. It is suitable for automotive components in confined spaces or requiring frequent maintenance. The telescopic control device 2 rotates, driving an external gear 13. The rotation of two sets of external gears 13 drives an internal gear 131, which in turn drives an extension column 15. The extension column 15 then rotates a fixed rod 22, which in turn rotates a first rotating rod 16. The rotation of the first rotating rod 16 drives the rotation of the third rotating rod 18. When the telescopic control device 2 rotates clockwise, the third rotating rod 18 rotates out from inside the first rotating rod 16 and drives the first telescopic outer shell 5 to extend outward through the multiple sets of sliding grooves 11. At the same time, the extension of the third rotating rod 18 drives the second rotating rod 17 to move in the same direction through the second fixing plate 19. The movement of the second rotating rod 17 drives the third telescopic outer shell 10 to slide outward. At this time, the telescopic control device 2 realizes the extension function, achieving the effect of extending the threaded rod. When the telescopic control device 2 rotates counterclockwise, it realizes the retraction function, achieving the effect of shortening the threaded rod.

[0025] 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.

Claims

1. A high-strength bolt suitable for automobiles, comprising a bolt head (1), characterized in that: The lower end of the bolt head (1) is equipped with a first fixing plate (3), and a telescopic control device (2) is installed on one side of the first fixing plate (3); an anti-slip pad (4) is installed on the outer wall of the telescopic control device (2), and a second telescopic shell (9) is fixedly connected to one side of the telescopic control device (2). Multiple sets of sliding grooves (11) are provided on the outer wall of the second telescopic shell (9), and a third telescopic shell (10) is movably connected to one side of the second telescopic shell (9). The third telescopic outer shell (10) is equipped with multiple sets of sliding protrusions (12). The third telescopic outer shell (10) is slidably connected to a first telescopic outer shell (5) on one side. A threaded rod (6) is fixedly connected to one end of the first telescopic outer shell (5). The threaded rod (6) is threadedly connected to a nut (7). The inner wall of the nut (7) has an internal threaded wall (8). The telescopic control device (2) is provided with a rotating threaded wall (14). An external gear (13) is installed inside the telescopic control device (2). There are two sets of external gears (13). An internal gear (131) meshes between the two sets of external gears (13). An extension column (15) is fixedly connected to one end of the internal gear (131). A fixing rod (22) is fixedly connected to one end of the extension column (15).

2. The high-strength bolt suitable for automobiles according to claim 1, characterized in that: The outer wall of the fixed rod (22) is movably connected to the first rotating rod (16). The outer wall of the first rotating rod (16) is provided with multiple sets of sliding grooves. The outer wall of the first rotating rod (16) is slidably connected to the second rotating rod (17). The outer wall of the second rotating rod (17) is provided with spiral patterns. The interior of the second rotating rod (17) is provided with a cavity (20) as the telescopic space of the first rotating rod (16). The inner wall of the second telescopic outer shell (9) is provided with a short threaded wall (21).

3. A high-strength bolt suitable for automobiles according to claim 2, characterized in that: The inner wall of the second telescopic outer shell (9) meshes with the outer wall of the second rotating rod (17). The inner wall of the first rotating rod (16) is threadedly connected to the third rotating rod (18). One end of the second telescopic outer shell (9) is provided with a second fixing plate (19). The inner wall of the second fixing plate (19) is threadedly connected to the third rotating rod (18). The bottom end of the third rotating rod (18) is fixedly connected to the first telescopic outer shell (5).

Images