Anti-thread-slipping bolt with double bolt heads

Abstract

The double-bolt-head bolt comprises a bolt body, threaded sleeves are installed on the two sides of the front surface of the bolt body in a threaded mode, clamping rods are arranged on the front surfaces of the threaded sleeves, threaded rods are arranged in an inner cavity of the bolt body, and adjusting plates are fixedly installed at the ends, away from each other, of the threaded rods. A threaded sleeve is installed on the front surface of the threaded rod in a threaded mode, clamping supports are fixedly installed on the top of the threaded sleeve, and the ends, close to each other, of the clamping supports are clamped in an inner cavity of the clamping rod. By means of the technical scheme, the defects that an existing bolt is not provided with an anti-thread-slipping function, the anti-thread-slipping function possibly occurs in the process that connection is gradually loosened, the process is not easy to perceive, a connecting pair is damaged unconsciously, and the tightening torque possibly does not suddenly drop even if thread slipping occurs when threads are tightened, so that the anti-thread-slipping function is affected are overcome. Therefore, the connection failure is difficult to find, and the problems of vibration, abnormal sound and the like are often caused when the product is used.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a double-head bolt with anti-slip threads. Background Technology

[0002] Bolts are mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They consist of a head and a shank (a cylinder with external threads). They are used to fasten two parts with through holes. This type of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, bolted connections are detachable connections. However, existing bolts do not have anti-slip threads, which can cause the connection to gradually loosen. This process is not easy to detect, leading to damage to the connection without the user's knowledge. Even if the threads strip when tightening, the tightening torque may not suddenly drop. This makes it difficult to detect the failure of this type of connection. Problems such as vibration and abnormal noise often only appear when the product is in use. Utility Model Content

[0003] The purpose of this invention is to provide a double-headed bolt with anti-slip threads, which has the advantages of anti-slip threads.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-headed bolt with anti-slip threads, comprising a bolt body, with threaded sleeves threaded on both sides of the front surface of the bolt body, a snap-fit ​​rod provided on the front surface of the threaded sleeve, a threaded rod provided in the inner cavity of the bolt body, an adjusting plate fixedly installed at the ends of the threaded rods that are far apart from each other, a threaded sleeve threaded on the front surface of the threaded rod, a snap-fit ​​bracket fixedly installed on the top of the threaded sleeve, and a snap-fit ​​bracket snapping into the inner cavity of the snap-fit ​​rod at the ends that are close to each other, and an installation hole provided on the top of the bolt body.

[0005] As a preferred embodiment, the inner cavity of the bolt body is provided with a smooth rod, and the inner surface of the threaded sleeve is slidably mounted on the positive surface of the smooth rod.

[0006] As a preferred embodiment, a bearing is fixedly installed in the inner cavity of the bolt body, and one end of the threaded rod that is close to the other end is movably installed in the inner cavity of the bearing.

[0007] As a preferred embodiment, the bolt body includes a chlorosulfonated polyethylene coating layer, and the bottom of the chlorosulfonated polyethylene coating layer is coated with an aluminum tripolyphosphate coating layer.

[0008] As a preferred embodiment, the bottom of the aluminum tripolyphosphate coating layer is coated with a polyurea coating layer, the thickness of which is 0.03 mm.

[0009] As a preferred embodiment, the chlorosulfonated polyethylene coating layer and the aluminum tripolyphosphate coating layer are connected by a zinc silicate coating layer, and the thickness of the aluminum tripolyphosphate coating layer is 0.01 mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model solves the problem of existing bolts lacking anti-slip threads through the above-mentioned technical solution. This can occur during the gradual loosening of the connection, a process that is not easily detected, leading to damage to the connection without the user's knowledge. Even if the threads strip when tightening, the tightening torque may not suddenly drop, making it difficult to detect such connection failures. Often, problems such as vibration and abnormal noise will only appear when the product is in use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the bolt body structure of this utility model;

[0014] Figure 3 This is a partial structural cross-sectional view of the bolt body of this utility model;

[0015] Figure 4 This is a schematic diagram of the bolt body structure of this utility model.

[0016] In the diagram: 1. Bolt body; 2. Adjusting plate; 3. Screw sleeve; 4. Snap-fit ​​rod; 5. Mounting hole; 6. Threaded rod; 7. Plain rod; 8. Threaded sleeve; 9. Bearing; 10. Snap-fit ​​bracket; 101. Chlorosulfonated polyethylene coating layer; 102. Aluminum tripolyphosphate coating layer; 103. Polyurea coating layer. Detailed Implementation

[0017] 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.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Example 1:

[0020] Please see Figures 1-3 As shown, this utility model provides a double-headed bolt with anti-slip threads, including a bolt body 1. Sleeve sleeves 3 are threadedly installed on both sides of the front surface of the bolt body 1. A snap-fit ​​rod 4 is provided on the front surface of the sleeve 3. A threaded rod 6 is provided in the inner cavity of the bolt body 1. An adjusting plate 2 is fixedly installed at one end of the threaded rod 6 that is far apart from each other. A threaded sleeve 8 is threadedly installed on the front surface of the threaded rod 6. A snap-fit ​​bracket 10 is fixedly installed on the top of the threaded sleeve 8. One end of the snap-fit ​​bracket 10 that is close to each other snaps into the inner cavity of the snap-fit ​​rod 4. An installation hole 5 is provided on the top of the bolt body 1.

[0021] This technical solution addresses the shortcomings of existing bolts that lack anti-slip threads, which can lead to gradual loosening of the connection. This process is difficult to detect, causing damage to the connection without the user's awareness. Even if stripping occurs during thread tightening, the tightening torque may not suddenly decrease, making such connection failures difficult to detect. Problems such as vibration and abnormal noise often only appear during product use.

[0022] Example 2:

[0023] Based on Embodiment 1, this utility model is as follows: Figure 2 and Figure 4 As shown, the inner cavity of the bolt body 1 is provided with a smooth rod 7, the inner surface of the threaded sleeve 8 is slidably installed on the positive surface of the smooth rod 7, the inner cavity of the bolt body 1 is fixedly installed with a bearing, and the ends of the threaded rods 6 that are close to each other are movably installed in the inner cavity of the bearing. The bolt body 1 includes a chlorosulfonated polyethylene coating layer 101, the bottom of the chlorosulfonated polyethylene coating layer 101 is coated with an aluminum tripolyphosphate coating layer 102, the bottom of the aluminum tripolyphosphate coating layer 102 is coated with a polyurea coating layer 103, the thickness of the polyurea coating layer 103 is 0.03 mm, the chlorosulfonated polyethylene coating layer 101 and the aluminum tripolyphosphate coating layer 102 are connected by a zinc silicate coating layer, and the thickness of the aluminum tripolyphosphate coating layer 102 is 0.01 mm.

[0024] By adopting the above technical solution, the wear of the threaded rod 6 can be reduced and its service life increased by setting the bearing 9. The setting of the smooth rod 7 achieves the effect of limiting the threaded sleeve 8. The setting of the chlorosulfonated polyethylene coating layer 101 has the advantages of good ozone resistance, chemical corrosion resistance, oil resistance, heat resistance, light resistance and wear resistance. The setting of the aluminum tripolyphosphate coating layer 102 has the advantages of wide applicability, water insolubility, non-toxicity and good thermal stability, and also has the effects of rust prevention, corrosion prevention and flame retardancy.

[0025] The working principle of this utility model is as follows: by rotating the mounting hole 5, the user rotates the mounting hole 5, which in turn rotates the threaded rod 6. The rotation of the threaded rod 6 causes the threaded sleeve 8 to move left and right through the smooth rod 7. The left and right movement of the threaded sleeve 8 causes the snap-fit ​​bracket 10 to move left and right. The left and right movement of the snap-fit ​​bracket 10 limits the threaded sleeve 3 through the snap-fit ​​rod 4, preventing stripping during use. The chlorosulfonated polyethylene coating layer 101 provides advantages such as ozone resistance, chemical corrosion resistance, oil resistance, heat resistance, light resistance, and wear resistance. The aluminum tripolyphosphate coating layer 102 provides wide applicability, water insolubility, non-toxicity, and good thermal stability, while also providing rust prevention, corrosion prevention, and flame retardancy. The polyurea coating layer 103 provides advantages such as strong adhesion, friction resistance, high hardness, good thermal stability, aging resistance, and corrosion resistance.

[0026] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A double-headed bolt with anti-slip threads, comprising a bolt body (1), characterized in that: Both sides of the front surface of the bolt body (1) are threaded with threaded sleeves (3). The front surface of the threaded sleeves (3) is provided with snap-fit ​​rods (4). The inner cavity of the bolt body (1) is provided with threaded rods (6). An adjusting plate (2) is fixedly installed at one end of the threaded rods (6) that is far apart from each other. The front surface of the threaded rods (6) is threaded with threaded sleeves (8). A snap-fit ​​bracket (10) is fixedly installed on the top of the threaded sleeves (8). The close ends of the snap-fit ​​brackets (10) are snapped into the inner cavity of the snap-fit ​​rods (4). The top of the bolt body (1) is provided with mounting holes (5).

2. The double-headed bolt with anti-slip threads according to claim 1, characterized in that: The inner cavity of the bolt body (1) is provided with a smooth rod (7), and the inner surface of the threaded sleeve (8) is slidably installed on the front surface of the smooth rod (7).

3. The double-headed bolt with anti-slip threads according to claim 1, characterized in that: The inner cavity of the bolt body (1) is fixedly fitted with a bearing, and the ends of the threaded rods (6) that are close to each other are movably installed in the inner cavity of the bearing.

4. The double-headed bolt with anti-slip threads according to claim 1, characterized in that: The bolt body (1) includes a chlorosulfonated polyethylene coating layer (101), and the bottom of the chlorosulfonated polyethylene coating layer (101) is coated with an aluminum tripolyphosphate coating layer (102).

5. The double-headed bolt with anti-slip threads according to claim 4, characterized in that: The bottom of the aluminum tripolyphosphate coating layer (102) is coated with a polyurea coating layer (103), the thickness of which is 0.03 mm.

6. The double-headed bolt with anti-slip threads according to claim 4, characterized in that: The chlorosulfonated polyethylene coating layer (101) and the aluminum tripolyphosphate coating layer (102) are connected by a zinc silicate coating layer, and the thickness of the aluminum tripolyphosphate coating layer (102) is 0.01 mm.

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