Hexagon stud with anti-skid effect

Abstract

The utility model discloses a double-end hexagon bolt with an anti-skidding effect, which comprises a bolt end part, a cavity formed in the middle of the bolt end part, a bolt rod inserted and mounted at the left end and the right end of the cavity, movable convex blocks and a fastening assembly, the fastening assembly is arranged on the outer side of the bolt rod and used for fixing the bolt rod and an externally connected workpiece. According to the double-end hexagon bolt with the anti-skid effect, the elongation amount of the bolt rod in the end of the bolt can be conveniently adjusted, the use length of the bolt rod can be adjusted, the overall use scene of the bolt is enriched, the bolt and an external workpiece can be conveniently locked and limited in combination with the arrangement of the fastening assembly, the fastening performance is good, and the service life of the bolt is prolonged. And in addition, the whole structural design is relatively simple, and the anti-slipping device is suitable for being popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field related to double-headed hexagonal bolts, in particular to a double-headed hexagonal bolt with an anti-slip effect. Background Art

[0002] A double-headed hexagonal bolt, also known as a stud, is a fastener with two threaded ends, each of which is hexagonal in shape. It is characterized by threads at both ends, while the middle portion is usually smooth. This bolt is designed so that it can be screwed into or passed through different connecting components at each end and then secured with a nut to achieve a connection between the two components. It is widely used.

[0003] As disclosed in announcement No. CN220268159U, a double-bolt head bolt with anti-slip thread is disclosed, which relates to the technical field of anti-slip thread of bolts; and the utility model includes a stud, the upper end of the stud is fixedly provided with a hexagonal nut, and a protective sleeve is provided just above the hexagonal nut, and the lower surface of the protective sleeve is provided with a through groove that matches the hexagonal nut; in the utility model, the protective sleeve is provided on the hexagonal nut. At this time, the bolt is equivalent to arranging two hexagonal nuts, and when the bolt needs to be disassembled, the pre-selection can be disassembled through the protective sleeve. When the protective sleeve is threaded, the rotating wheel can be directly rotated, and the rotating wheel drives the gear to rotate through the rotating shaft. When the gear rotates, it will pull the two tooth plates toward each other, thereby driving the two push blocks to pull the stop rod out of the stop groove. At this time, the staff can directly pull the protective sleeve to separate it from the hexagonal nut. At this time, a brand new hexagonal nut without thread slipping will be on the stud, and the staff can remove the stud through the hexagonal nut without thread slipping;

[0004] However, in the prior art, the length of the bolts is mostly fixed. Different lengths of bolts need to be selected for use in different usage scenarios, which makes it inconvenient to directly adjust the length of the bolts. In addition, when the bolts are made anti-slip, the structure is too complicated, the production and use costs are high, and it is not suitable for widespread use. For example, the comparative patents listed above have this problem.

[0005] For this reason, we propose a double-headed hexagonal bolt with anti-slip effect to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a double-headed hexagonal bolt with an anti-slip effect, so as to solve the problem in the prior art proposed in the above background technology that the length of the bolts is mostly fixed, and bolts of different lengths need to be selected for use in different usage scenarios, which is inconvenient to directly adjust the use length of the bolts. Moreover, when the bolts are made anti-slip, the structure is too complicated, the production and use costs are high, and it is not suitable for popularization and use.

[0007] To achieve the above object, the present invention provides the following technical solution: a double-headed hexagonal bolt with an anti-slip effect, comprising a bolt end, a cavity opened in the middle of the bolt end, and a bolt rod inserted and installed at the left and right ends of the cavity;

[0008] Also includes:

[0009] Movable protrusions, the movable protrusions are respectively telescopically connected to the front and rear ends of the bolt rod near the bolt end, and the movable protrusions are used to limit the position between the bolt rod and the bolt end, the movable protrusions are engaged in the fixing holes at the corresponding positions, and the fixing holes are arranged at equal intervals at the front and rear ends of the bolt end;

[0010] A fastening assembly is arranged on the outside of the bolt rod and is used to fix the bolt rod and an externally connected workpiece.

[0011] Preferably, a spring is provided inside the bolt rod on one side close to the bolt end, and a movable protrusion for positioning is fixedly connected to the movable end of the spring.

[0012] Preferably, the fastening assembly includes an anti-slip ring sleeved on the outer surface of the bolt rod, anti-slip teeth for positioning, and a first nut and a second nut for locking and limiting.

[0013] Preferably, the anti-slip teeth are arranged at equal angles on one side of the anti-slip ring close to the end of the bolt, and the anti-slip teeth fit tightly on the external workpiece to be connected.

[0014] Preferably, the first nut and the second nut are both threadedly connected to the outer surface of the bolt rod, the first nut and the anti-slip ring are fitted together, and the first nut and the second nut are fitted together.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the double-headed hexagonal bolt with anti-slip effect is connected in the cavity by the bolt rod being telescopically connected, so that the elongation of the bolt rod in the bolt end portion is adjusted, and the use length of the bolt rod is adjusted, which enriches the use scenarios of the bolt as a whole. The movable protrusion is engaged in the fixing hole at the corresponding position, which is convenient for limiting the position between the bolt rod and the bolt end after the adjustment is completed. The setting of the fastening component is convenient for locking and limiting the bolt and the external workpiece, and the fastening performance is good, which effectively prevents the occurrence of thread slippage during long-term use. In addition, the overall structural design is relatively simple, the production and use costs are low, and it is suitable for popularization and use.

[0016] 1. It is equipped with a bolt end, a bolt rod and a cavity. The bolt rod can slide and retract in the cavity provided inside the bolt end, thereby facilitating adjustment of the length of the bolt rod, thus enriching the use scenarios of the bolt;

[0017] 2. A movable protrusion and a fixed hole are provided. A sliding structure is formed between the movable protrusion and the bolt rod. The movable protrusion is inserted into the fixed hole at the corresponding position to facilitate the position limiting between the bolt rod and the bolt end;

[0018] 3. A fastening assembly is provided, which includes an anti-slip ring, anti-slip teeth, a first nut and a second nut. The setting of the fastening assembly facilitates locking and limiting between the bolt rod and the external workpiece. The setting of the nut can prevent loosening during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the bolt end and the bolt rod of the utility model;

[0021] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 4 This is a schematic diagram of the top view of the cross-section structure of the bolt rod, spring and movable protrusion connection of the utility model;

[0023] Figure 5 It is a schematic diagram of the explosion structure of the bolt rod, anti-slip ring, anti-slip teeth, first nut and second nut of the utility model.

[0024] In the figure: 1. Bolt end; 2. Bolt rod; 3. Spring; 4. Movable protrusion; 5. Fixing hole; 6. Cavity; 7. Fastening assembly; 8. Anti-slip ring; 9. Anti-slip teeth; 10. First nut; 11. Second nut. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 , the utility model provides the following technical solutions.

[0027] Embodiment 1: In order to solve the problem in the prior art that the length of bolts is mostly fixed, different lengths of bolts need to be selected for use in different usage scenarios, and it is inconvenient to directly adjust the length of the bolt, so this embodiment adopts the following technical solution: a double-headed hexagonal bolt with an anti-slip effect is provided with a bolt end 1, a bolt rod 2, a spring 3, a movable protrusion 4, a fixing hole 5 and a cavity 6. A cavity 6 is opened in the middle of the bolt end 1, the bolt rod 2 is telescopically connected in the cavity 6, and a spring 3 is provided inside the bolt rod 2 near the bolt end 1, and the movable end of the spring 3 is fixedly connected to a movable protrusion 4 for positioning, the fixing holes 5 are telescopically connected to the front and rear ends of the bolt rod 2 near the bolt end 1, and the movable protrusion 4 is used to limit the position between the bolt rod 2 and the bolt end 1, the movable protrusion 4 is engaged in the fixing hole 5 at the corresponding position, and the fixing holes 5 are arranged at equal intervals at the front and rear ends of the bolt end 1, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, first, according to the use requirements of the bolt, the movable protrusion 4 is pressed with the help of the external metal thin rod, so that the movable protrusion 4 and the bolt rod 2 slide. At this time, the movable protrusion 4 squeezes the spring 3, and the spring 3 undergoes elastic deformation. At this time, the movable protrusion 4 disengages from the fixing hole 5, thereby loosening the limit between the bolt rod 2 and the bolt end 1, and then the bolt rod 2 is pulled to make the bolt rod 2 telescopically move in the cavity 6, and the protruding length of the bolt rod 2 inside the bolt end 1 is adjusted. When adjusted to the appropriate position, the movable protrusion 4 aligns with the fixing hole 5 at the corresponding position, and the spring 3 restores its elastic deformation, pushing the movable protrusion 4 and the bolt rod 2 to slide, so that the movable protrusion 4 is engaged in the fixing hole 5 at the corresponding position, thereby facilitating the limitation between the bolt rod 2 and the bolt end 1.

[0028] Example 2: The existing double-headed hexagonal bolt with anti-slip effect has an overly complex structure when preventing the bolt from slipping, and has high production and use costs, making it unsuitable for widespread use. Therefore, a fastening component 7 is provided, which is provided on the outside of the bolt rod 2, and the fastening component 7 is used to fix the bolt rod 2 to the workpiece connected to the outside. The fastening component 7 includes an anti-slip ring 8 sleeved on the outer surface of the bolt rod 2, anti-slip teeth 9 for positioning, and a first nut 10 and a second nut 11 for locking and limiting. The anti-slip teeth 9 are arranged at equal angles on the side of the anti-slip ring 8 close to the bolt end 1, and the anti-slip teeth 9 are tightly fitted on the workpiece connected to the outside. The first nut 10 and the second nut 11 are both threadedly connected to the outer surface of the bolt rod 2, and the first nut 10 and the anti-slip ring 8 are fitted together, and the first nut 10 and the second nut 11 are fitted together. Figure 1 and Figure 5As shown, first insert the bolt end 1 and the bolt rod 2 into the connecting hole connected to the workpiece, then put the anti-slip ring 8 on the outer surface of the bolt rod 2, and the anti-slip ring 8 drives the anti-slip teeth 9 to fit and squeeze around the connecting hole of the workpiece, and then rotate the first nut 10 and the second nut 11 threadedly connected to the outer surface of the bolt rod 2, so that the first nut 10 and the anti-slip ring 8 are fit together, and at the same time, the second nut 11 and the first nut 10 are fit together. Through the setting of double nuts, the tightness of the connection between the bolt rod 2 and the workpiece is increased to prevent thread slippage.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-headed hexagonal bolt with an anti-slip effect, comprising a bolt end (1), a cavity (6) opened in the middle of the bolt end (1), and a bolt rod (2) inserted and installed at the left and right ends of the cavity (6); It is characterized in that Also includes: A movable protrusion (4), wherein the movable protrusion (4) is respectively telescopically connected to the front and rear ends of the bolt rod (2) near the bolt end (1), and the movable protrusion (4) is used to limit the position between the bolt rod (2) and the bolt end (1), and the movable protrusion (4) is engaged in the fixing hole (5) at the corresponding position, and the fixing holes (5) are arranged at equal intervals at the front and rear ends of the bolt end (1); A fastening assembly (7) is provided on the outside of the bolt rod (2), and the fastening assembly (7) is used to fix the bolt rod (2) and an externally connected workpiece.

2. The anti-slip stud hexagonal bolt according to claim 1, characterized in that: A spring (3) is provided inside the bolt rod (2) on a side close to the bolt end (1), and a movable protrusion (4) for positioning is fixedly connected to the movable end of the spring (3).

3. The anti-slip stud hexagonal bolt according to claim 1, characterized in that: The fastening assembly (7) comprises an anti-slip ring (8) sleeved on the outer surface of the bolt rod (2), anti-slip teeth (9) for positioning, and a first nut (10) and a second nut (11) for locking and limiting.

4. The anti-slip stud hexagonal bolt according to claim 3, characterized in that: The anti-slip teeth (9) are arranged at equal angles on one side of the anti-slip ring (8) close to the bolt end (1), and the anti-slip teeth (9) are tightly fitted on the external workpiece to be connected.

5. The anti-slip stud hexagonal bolt according to claim 3, characterized in that: The first nut (10) and the second nut (11) are both threadedly connected to the outer surface of the bolt rod (2), the first nut (10) and the anti-slip ring (8) are arranged in a close fit, and the first nut (10) and the second nut (11) are in close fit with each other.

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