Outer hexagonal flower-shaped double-end connecting bolt

Abstract

The utility model discloses an outer hexagonal flower-shaped double-end connecting bolt, which relates to the technical field of bolts, and comprises a bolt body, the bolt body consists of a hexagonal boss and a threaded column body extending outwards along two end surfaces of the hexagonal boss, and the outer hexagonal flower-shaped double-end connecting bolt also comprises two annular grooves arranged at the joint of the hexagonal boss and the threaded column body; the gasket is arranged on the annular groove in a sleeving manner; the limiting sleeve is in a horn shape, the gasket slides on the threaded column body in a sleeved mode, the end, provided with the notch, of the limiting sleeve is opened to slide to the annular groove, and the limiting sleeve is used for enabling the other end of the gasket to abut against the end face of the hexagonal boss. And then the limiting sleeve abuts against the groove wall and the end face of the hexagonal boss, the gasket is limited in the annular groove, displacement is avoided, when the bolt is installed, especially when the lower portion of an object is connected, the gasket cannot slide down to be clamped on a bolt thread due to gravity, personnel do not need to use extra time to adjust the position of the gasket, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to an external hexagonal double-ended connecting bolt. Background Technology

[0002] Bolts typically consist of a head and a shank. The head comes in various shapes, such as hexagonal, square, and round, and is used to tighten or loosen bolts with tools. The shank has external threads and is used in conjunction with a nut. By rotating the nut, the bolt generates axial force, thereby achieving the function of connection and fastening.

[0003] Gaskets prevent bolts or nuts from damaging the surfaces of the connected parts during tightening. However, gaskets may shift during installation, which can disrupt the process and require installers to constantly adjust their positions. This consumes extra time, especially in large-scale assembly operations where frequent gasket shifts can significantly reduce installation efficiency and increase production costs. Utility Model Content

[0004] The purpose of this utility model is to provide an external hexagonal flower-shaped double-ended connecting bolt to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides an external hexagonal double-ended connecting bolt, including a bolt body, which is composed of a hexagonal boss and a threaded column extending outward along both ends of the bolt body, and also includes two annular grooves disposed at the connection between the hexagonal boss and the threaded column; a washer fitted on the annular groove; and a limiting sleeve, the outer peripheral wall of which gradually extends outward from one end of the washer to abut against the groove wall of the annular groove, for abutting the other end of the washer against the end face of the hexagonal boss.

[0006] Furthermore, the limiting sleeve is provided with a slit, which extends horizontally from the opening of the limiting sleeve toward the gasket.

[0007] Furthermore, there are multiple slits, evenly spaced along the outer periphery of the limiting sleeve.

[0008] Furthermore, the end of the limiting sleeve near the gasket is folded outward to form a convex edge, and a groove matching the convex edge is provided on the side of the gasket near the hexagonal boss. A hexagonal boss is installed on one end of the bolt body.

[0009] Furthermore, a nut is threaded onto the outer wall of the bolt body, and multiple cylindrical grooves are formed on the hexagonal boss. An adhesive layer is integrally formed on the outer wall of the hexagonal boss.

[0010] Furthermore, the gasket is made of steel, and rubber pads are installed on both end faces of the gasket.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the limiting sleeve is flared in shape, and the gasket slides on the threaded cylinder. The end of the limiting sleeve with a cut is opened until it slides into the annular groove. Then, the limiting sleeve abuts against the groove wall and the end face of the hexagonal boss, restricting the gasket in the annular groove to prevent displacement. When installing bolts, especially when connecting from below, the gasket will not slide down and get stuck on the bolt thread due to gravity. There is no need for personnel to spend extra time adjusting the position of the gasket, thus improving installation efficiency.

[0013] 2. In this utility model, the limiting sleeve is made of plastic and is elastic. When not installed on the bolt body, the two sides of the cut are close together. It is only opened when it is fitted on the threaded body. After the cut is opened, the limiting sleeve tightly wraps the threaded body, increasing the friction and making the installation more secure. It is not easy to loosen or fall off during use, ensuring stability and reliability. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the connection structure between the bolt body and the nut in this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the gasket and the rubber pad in this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the convex edge and the limiting sleeve in this utility model.

[0018] In the diagram: 1. Bolt body; 2. Hexagonal boss; 3. Washer; 4. Limiting sleeve; 5. Annular groove; 6. Rubber pad; 7. Circular groove; 8. Nut. 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. 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution:

[0021] See Figures 1-4The device includes a bolt body 1, which consists of a hexagonal boss 2 and threaded cylinders extending outward from both ends of the bolt body 2. It also includes two annular grooves 5, which are located at the connection between the hexagonal boss 2 and the threaded cylinders. A washer 3 is fitted onto the annular grooves 5. A limiting sleeve 4 has its outer peripheral wall gradually extending outward from one end of the washer 3 to abut against the groove wall of the annular groove 5, which is used to abut the other end of the washer 3 against the end face of the hexagonal boss 2.

[0022] The hexagonal boss 2 serves to facilitate tightening or loosening operations using tools. At the same time, the bolt body 1 also has threaded columns extending outward along both ends of the hexagonal boss 2. The threaded columns at both ends can be connected to different components to achieve a double-ended connection function.

[0023] The axes of the two threaded cylinders and the axis along the hexagonal boss 2 are on the same horizontal line, and the two threads are installed symmetrically.

[0024] The limiting sleeve 4 is trumpet-shaped. When the washer 3 slides on the threaded cylinder, the end of the limiting sleeve 4 with a cut will radiate outward along the cut until it slides down to the annular groove 5. The end of the limiting sleeve 4 with a cut abuts against the groove wall of the annular groove 5, and the other end abuts against the end face of the hexagonal boss 2. This can restrict the washer 3 within the annular groove 5 and prevent it from easily shifting. Furthermore, when installing bolts, especially when connecting from below, the washer 3 will not slide down due to gravity and get stuck on the bolt threads. This eliminates the need for personnel to constantly adjust the position of the washer 3, improving installation efficiency.

[0025] When the bolt body 1 is inserted into the object to fix it, a hole is formed. The limiting sleeve 4 can be inserted into the hole well, and the object will not squeeze the limiting sleeve 4 and cause damage.

[0026] See Figure 1-3 The limiting sleeve 4 has a cut, which extends horizontally from the opening of the limiting sleeve 4 toward the gasket 3.

[0027] The self-limiting sleeve 4 is made of plastic and has a certain degree of elasticity. When it is not installed on the bolt body 1, the clamps on both sides of the cut fit together. It will only open when it is fitted onto the threaded body. After the cut is opened, the limiting sleeve 4 will tightly wrap around the threaded body, increasing the friction between the two. This makes the limiting sleeve 4 more securely installed and less likely to loosen or fall off during use, ensuring stability and reliability.

[0028] See Figure 3 There are multiple cuts, which are evenly spaced along the outer periphery of the limiting sleeve 4.

[0029] The number of slits is set at equal intervals, which can divide one end of the limiting sleeve 4 into multiple equal parts. When it is subjected to resistance, due to the equal distribution of the slits, one end of the limiting sleeve 4 is divided into multiple equal parts, and the resistance of each part is relatively uniform. This can avoid structural damage or deformation caused by excessive local force, and improve the overall stability and reliability of the limiting sleeve 4.

[0030] See Figure 3-4 The end of the limiting sleeve 4 near the gasket 3 is folded outward to form a convex edge. The side of the gasket 3 near the hexagonal boss 2 is provided with a groove that matches the convex edge. The bolt body 1 is equipped with a hexagonal boss 2 at one end.

[0031] Since the diameter of the trumpet-shaped opening of the limiting sleeve 4 is larger than the through opening on the gasket 3, after the limiting sleeve 4 is inserted into the gasket 3, the protruding edge is welded to the outer circumference of the limiting sleeve 4, and the limiting sleeve 4 is well fitted into the groove. The protruding edge is used to limit the limiting sleeve 4 and prevent it from loosening.

[0032] See Figure 1-2 The outer wall of the bolt body 1 is threaded with a nut 8, and the hexagonal boss 2 has multiple cylindrical grooves 7. The outer wall of the hexagonal boss 2 is integrally formed with an adhesive layer.

[0033] Nut 8 can be used with bolt body 1 to achieve a fastening connection between two or more parts, ensuring the strength of the connection.

[0034] The circular groove 7 can increase the contact area between the hexagonal boss 2 and the tool, thereby improving the efficiency of tightening and loosening bolts.

[0035] The adhesive layer on the outer wall of the hexagonal boss 2 can increase the friction between the hexagonal boss 2 and the wrench contact surface, which can better tighten the bolt and prevent the bolt from loosening.

[0036] The tightness of the connection can be easily adjusted by rotating nut 8 to adapt to different connection requirements.

[0037] See Figure 1-3 The gasket 3 is made of steel, and rubber gaskets 6 are installed on both ends of the gasket 3.

[0038] Steel has high strength and hardness, and can withstand greater pressure, ensuring a strong connection.

[0039] Steel gaskets are not easily deformed and can maintain a stable shape, ensuring the accuracy of bolt connections.

[0040] One rubber pad 6 is installed on the end face near the hexagonal boss 2, and the other rubber pad 6 is installed on the end face near the thread near the hexagonal boss 2 and covers the protruding edge, which further limits the protruding edge and can more effectively prevent unnecessary displacement of the protruding edge during use, ensuring the stability and reliability of the structure.

Claims

1. A hexagonal flower-shaped double-end connecting bolt, comprising a bolt body (1), the bolt body (1) is composed of a hexagonal boss (2) and a threaded column extending outward along the two end faces, characterized in that; Also include, Two annular grooves (5) are arranged at the connecting part of the hexagonal boss (2) and the threaded column; The gasket (3) is sleeved on the annular groove (5); The limiting sleeve (4) is gradually inclined from one end of the gasket (3) to the outside to abut against the groove wall of the annular groove (5), and is used to abut the other end of the gasket (3) against the end face of the hexagonal boss (2).

2. The hexalobular double-end connector bolt of claim 1, wherein: The limiting sleeve (4) is provided with a cutout, which extends horizontally from the sleeve opening of the limiting sleeve (4) to the direction close to the gasket (3).

3. The hexalobular double-end connector bolt of claim 2, wherein: The number of cutouts is multiple, which are arranged equidistantly along the outer periphery of the limiting sleeve (4).

4. The hexalobular double-end connector bolt of claim 3, wherein: The opening of the limiting sleeve (4) close to the gasket (3) is outwardly folded and forms a convex edge, and the side of the gasket (3) close to the hexagonal boss (2) is provided with a groove matched with the convex edge.

5. The hexalobular double-end connector bolt of claim 1 wherein: The hexagonal boss (2) is provided with a plurality of cylindrical circular grooves (7), and the outer wall of the hexagonal boss (2) is integrally formed with a rubber layer.

6. The hexalobular double-end connector bolt of claim 1 wherein: The material of the gasket (3) is steel, and the two end faces of the gasket (3) are provided with rubber pads (6).

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