High-strength hexagonal head bolt

Abstract

The utility model discloses a high-strength hexagonal head bolt which is characterized in that the upper end of a bolt column is fixedly connected with a bolt head, the side surface of the bolt head is provided with six tightening surfaces, the bolt column is provided with a threaded groove, the threaded groove extends to the bolt head from the bolt column, the threaded groove is provided with a sliding groove, and the sliding groove extends to the outside of the bolt column from the threaded groove. The inner surface of the sliding groove is fixedly connected with a reset spring, the other end of the reset spring is fixedly connected with a sliding block, the sliding block is slidably connected into the sliding groove, and the inner wall of the threaded groove is in threaded connection with a lead screw. And when the bolt is independently used, the sliding block extends out and can abut against the interior of the screw hole, the friction force between the bolt and the hole wall is increased, and the fixing effect of the bolt in the hole can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a high-strength hexagonal head bolt. Background Art

[0002] Hexagonal bolts are fasteners consisting of a head and a screw. Bolts are divided into iron bolts and stainless steel bolts according to their materials. Existing hexagonal bolts have two uses. One is to use them directly, screwing them into the corresponding threaded holes to fix the items. The other is to use them together with nuts to fix two items with threaded holes.

[0003] However, they lack anti-loosening features. When used with a nut, the nut may loosen and fall off due to vibration, impact, or other external factors. This can cause the connection to fail, increase maintenance frequency, and even pose a safety hazard. When used independently, the lack of a friction-enhancing design can cause the bolt to slip or shift within the hole, affecting the stability of the connection. This is particularly problematic in applications requiring high precision and reliability. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a high-strength hexagonal head bolt. A screw rod can be screwed down by a cross screwdriver, and the screw rod will push the slider outward through the inclined surface on the screw rod and the slider. When the bolt and nut are used in conjunction with each other, the slider can block the retreat of the nut and prevent the nut from loosening due to vibration or other factors. This can greatly improve the safety and stability of the connection and prevent the nut from being disassembled under unexpected conditions, thereby reducing potential safety hazards. When the bolt is used independently, the slider can be extended to support the inside of the screw hole, increasing the friction between the bolt and the hole wall, which helps to improve the fixing effect of the bolt in the hole, reduce sliding or displacement, and thereby improve the stability and durability of the overall structure.

[0005] The utility model also provides the above-mentioned high-strength hexagonal head bolt, comprising: a bolt column, the upper end of the bolt column is fixedly connected to the bolt head, the side surface of the bolt head is provided with six tightening surfaces, a threaded groove is provided on the bolt column, the threaded groove extends from the bolt column to the bolt head, a slide groove is provided on the threaded groove, the slide groove extends from the threaded groove to the outside of the bolt column, the inner surface of the slide groove is fixedly connected to a reset spring, the other end of the reset spring is fixedly connected to a slider, the slider is slidably connected to the inside of the slide groove, the inner wall of the threaded groove is threadedly connected to a screw rod, the lower end of the screw rod and the rear surface of the slider are both provided with inclined surfaces, and the upper end of the screw rod is provided with a cross groove.

[0006] According to the high-strength hexagonal head bolt described in the utility model, the outer wall of the bolt column is threadedly connected with a nut, and the upper surface of the nut is fixedly connected with a rubber washer.

[0007] According to the high-strength hexagonal head bolt described in the utility model, a plurality of gaskets are slidably connected to the outer wall of the bolt column.

[0008] According to the high-strength hexagonal head bolt described in the utility model, a reserved groove is provided on the bolt head, and the inner surface of the reserved groove is rotatably connected to a rotating ring.

[0009] According to the high-strength hexagonal head bolt described in the utility model, a buffer spring is fixedly connected to the lower surface of the rotating ring, and a damper is fixedly connected to the lower surface of the rotating ring, and the damper is located inside the buffer spring.

[0010] According to the high-strength hexagonal head bolt described in the utility model, the other end of the buffer spring and the damper is fixedly connected to a connecting block, and the lower surface of the connecting block is fixedly connected to a top plate.

[0011] Beneficial effects

[0012] 1. Compared with the existing technology, this high-strength hexagonal head bolt can be lowered by turning the screw rod with a cross screwdriver. Through the inclined surface on the screw rod and the slider, the screw rod will push the slider outward. When the bolt and nut are used together, the slider can block the nut's retreat path and prevent the nut from loosening due to vibration or other factors. This can greatly improve the safety and stability of the connection and prevent the nut from being disassembled under unexpected conditions, thereby reducing potential safety hazards. When the bolt is used independently, the slider extends to support the inside of the screw hole, increasing the friction between the bolt and the hole wall, which helps to improve the fixing effect of the bolt in the hole, reduce sliding or displacement, and thus improve the stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is the main structural view of the high-strength hexagonal head bolt of the utility model;

[0015] Figure 2 This is a front cross-sectional structural diagram of a high-strength hexagonal head bolt of the utility model;

[0016] Figure 3 This is a top-view cross-sectional structural diagram of the high-strength hexagonal head bolt of the utility model;

[0017] Figure 4 This is a bottom view of the high-strength hexagonal head bolt of the utility model.

[0018] Legend:

[0019] 1. Cross groove; 2. Bolt head; 3. Tightening surface; 4. Gasket; 5. Nut; 6. Bolt column; 7. Rotating ring; 8. Reserved groove; 9. Connecting block; 10. Top plate; 11. Rubber washer; 12. Slide groove; 13. Slider; 14. Return spring; 15. Damper; 16. Buffer spring; 17. Threaded groove; 18. Screw; 19. Inclined surface. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-4 The embodiment of the present invention is a high-strength hexagonal head bolt, which includes: a bolt column 6, the outer wall of the bolt column 6 is threadedly connected to a nut 5, the upper surface of the nut 5 is fixedly connected to a rubber washer 11 for increasing friction, the outer wall of the bolt column 6 is slidably connected to a plurality of gaskets 4 for distance compensation, the upper end of the bolt column 6 is fixedly connected to the bolt head 2, a reserved groove 8 is provided on the bolt head 2, the inner surface of the reserved groove 8 is rotatably connected to a rotating ring 7 for rotation to prevent the buffer spring 16 and the damper 15 from being damaged by rotational force, the lower surface of the rotating ring 7 is fixedly connected to the buffer spring 16, the lower surface of the rotating ring 7 is fixedly connected to the damper 15 for buffering vibration and increasing stability after the fixation is completed, the damper 15 is located inside the buffer spring 16, the other end of the buffer spring 16 and the damper 15 is fixedly connected to the connecting block 9, the lower surface of the connecting block 9 is fixedly connected to the top plate 10, the side surface of the bolt head 2 is provided with six tightening surfaces 3, and a threaded groove 17 is provided on the bolt column 6 for the screw rod 18 to move inside.

[0022] The thread groove 17 extends from the bolt column 6 to the bolt head 2, and a slide groove 12 is provided on the thread groove 17 for the slider 12 to slide inside. The slide groove 12 extends from the thread groove 17 to the outside of the bolt column 6, and the inner surface of the slide groove 12 is fixedly connected to a return spring 14, which is used to drive the slider 13 to reset after the screw rod 18 moves up during disassembly. The other end of the return spring 14 is fixedly connected to the slider 13, which is used to extend from the inside of the slide groove 12, thereby increasing the fixing effect. The slider 13 is slidably connected to the inside of the slide groove 12, and the inner wall of the thread groove 17 is threadedly connected to the screw rod 18, which is used to be twisted downward to squeeze the slider 13, thereby pushing the slider 13 outward. The lower end of the screw rod 18 and the rear surface of the slider 13 are both provided with an inclined surface 19, which is used to enable the slider 13 to be extruded more smoothly. The upper end of the screw rod 18 is provided with a cross groove 1.

[0023] Working principle: When in use, a cross screwdriver can be inserted into the inside of the cross groove 1, thereby screwing the screw rod 18 to make it descend. Through the contact between the screw rod 18 and the inclined surface on the slider 13, the screw rod 18 will push the slider 13 outward. When the bolt and nut 5 are used in conjunction, the slider 13 can block the retreat of the nut 5 to prevent the nut 5 from loosening due to vibration or other factors. When the bolt is used independently, the slider 13 is extended to support the inside of the screw hole, increasing the friction between the bolt and the hole wall. When you want to disassemble it, you only need to screw the screw rod 18 in the opposite direction to raise it, and the return spring 14 will push the slider 13 back into the slide groove 12.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high-strength hexagonal head bolt, characterized in that: include: The bolt column (6) is fixedly connected to the upper end of the bolt column (6) with a bolt head (2), and the side surface of the bolt head (2) is provided with six tightening surfaces (3), and the bolt column (6) is provided with a thread groove (17), and the thread groove (17) extends from the bolt column (6) to the bolt head (2), and the thread groove (17) is provided with a slide groove (12), and the slide groove (12) extends from the thread groove (17) to the outside of the bolt column (6), and the inner surface of the slide groove (12) is fixedly connected to a return spring (14), and the other end of the return spring (14) is fixedly connected to a slider (13), and the slider (13) is slidably connected to the inside of the slide groove (12), and the inner wall of the thread groove (17) is threadedly connected to a screw rod (18), and the lower end of the screw rod (18) and the rear surface of the slider (13) are both provided with an inclined surface (19), and the upper end of the screw rod (18) is provided with a cross groove (1).

2. A high-strength hexagonal head bolt according to claim 1, characterized in that: The outer wall of the bolt column (6) is threadedly connected to a nut (5), and the upper surface of the nut (5) is fixedly connected to a rubber washer (11).

3. A high-strength hexagon head bolt according to claim 1, characterized in that: The outer wall of the bolt column (6) is slidably connected with a plurality of gaskets (4).

4. A high-strength hexagonal head bolt according to claim 1, characterized in that: A reserved groove (8) is provided on the bolt head (2), and the inner surface of the reserved groove (8) is rotatably connected to a rotating ring (7).

5. A high-strength hexagonal head bolt according to claim 4, characterized in that: The lower surface of the rotating ring (7) is fixedly connected to a buffer spring (16), and the lower surface of the rotating ring (7) is fixedly connected to a damper (15), and the damper (15) is located inside the buffer spring (16).

6. A high-strength hexagonal head bolt according to claim 5, characterized in that: The other ends of the buffer spring (16) and the damper (15) are fixedly connected to a connecting block (9), and the lower surface of the connecting block (9) is fixedly connected to a top plate (10).

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