Detachable bolt

Abstract

The utility model discloses a detachable bolt, which relates to the technical field of bolts, and comprises a fixed shell, a screw rod main body is in threaded connection with the inside of the fixed shell, a lantern ring is in sliding connection with the outer side of the screw rod main body, a first nut is arranged on the outer side of the screw rod main body, and a second nut is arranged on the outer side of the fixed shell. The external thread of the screw body is matched with the internal thread of the first nut, the external thread of the fixed shell is matched with the internal thread of the second nut, and one end of the screw body is fixedly connected with a protruding block. According to the detachable bolt disclosed by the utility model, the problem of rusting or blocking is effectively solved by the bolt structure. The pressure on the second nut can be increased through the opening effect of the fixed shell, it is ensured that the first nut is kept in a fastened state, therefore, looseness of the first nut is effectively prevented, tight attachment of the first nut and the connecting position is ensured, and then the stability of the whole structure is improved. And meanwhile, under the influence of vibration or temperature change, the risk of loosening is remarkably reduced, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to detachable bolts. Background Technology

[0002] A bolt is a cylindrical threaded mechanical part consisting of a head and a shank (a cylinder with external threads). It needs to be used with a nut to fasten two objects with through holes. Bolts are indispensable in daily life and industrial manufacturing, and are widely used.

[0003] During use, bolt shanks and nuts are susceptible to environmental factors, especially in humid or corrosive environments. Rust and oxidation can degrade bolt performance and affect its service life. Due to rust or oxidation, the bolt shank and nut may seize up, making it impossible to disassemble the bolt and increasing the difficulty of maintenance and replacement. Alternatively, vibration or temperature changes may cause the bolt to loosen, affecting the stability and safety of the structure and potentially leading to equipment failure or safety hazards. To address these issues, we have introduced detachable bolts. Utility Model Content

[0004] This utility model discloses a detachable bolt, which improves upon the existing structure and its shortcomings, and provides a detachable bolt to achieve better practical value.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detachable bolt includes a fixed housing, an internally threaded screw body connected to the fixed housing, a slidably connected collar to the outer side of the screw body, a first nut on the outer side of the screw body, and a second nut on the outer side of the fixed housing. The external thread of the screw body matches the internal thread of the first nut, and the external thread of the fixed housing engages with the internal thread of the second nut. A protrusion is fixedly connected to one end of the screw body, a slot is provided on the outer side of the fixed housing, and a cross groove is provided at one end of the screw body.

[0007] In a preferred embodiment, the mounting housing is made of aluminum alloy.

[0008] In a preferred embodiment, the outer side of the protrusion is tapered, the outer diameter of one end of the protrusion is the same as the outer diameter of the screw body, and the outer diameter of the other end of the protrusion is the same as the outer diameter of the fixed housing.

[0009] In a preferred embodiment, the slot is triangular in shape.

[0010] In a preferred embodiment, the thickness of the fixed outer shell is 0.5 mm to 1 mm.

[0011] The detachable bolt provided by this utility model has the following advantages:

[0012] Firstly, by designing a new bolt structure, it is ensured that when the bolt corrodes or jams, the expansion effect of the fixed outer shell increases the pressure on the second nut, thereby effectively preventing it from loosening. This makes subsequent disassembly work smoother and ensures a tight fit between the two and the connection point, thus improving the stability of the entire structure. At the same time, it reduces the possibility of loosening under the influence of vibration or temperature changes, thereby improving the overall stability and safety of the structure.

[0013] Secondly, by using protrusions to pry open one end of the fixed housing, pressure can be applied to the second nut while keeping the first nut tightened. This dual-pressure design enhances the reliability of the connection and avoids overall failure due to a single loose nut.

[0014] Thirdly, the bolt can be disassembled, making it easy to replace damaged parts and reducing replacement costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the detachable bolt proposed in this utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of the detachable bolt proposed in this utility model.

[0017] Figure 3 This is a first exploded view of the detachable bolt proposed in this utility model.

[0018] Figure 4 This is a second exploded view of the detachable bolt proposed in this utility model.

[0019] In the attached diagram: 1. Fixed outer shell; 2. Screw body; 3. Collar; 4. First nut; 5. Second nut; 6. Protrusion; 7. Groove; 8. Cross groove. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0021] It should be noted that, in the context of use, the terms up, down, left, right, front, back, top, bottom, forward, reverse, clockwise, and counterclockwise in the following description are used merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative positions and / or orientations between the various parts of the object and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] It should be noted that, in practice, unless otherwise explicitly specified and limited, the terms "installation," "fixing," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a structural connection or a mechanical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] It should be noted that these and subsequent accompanying drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection of this utility model. Furthermore, variations in different embodiments can be appropriately combined. The components of the embodiments described and marked in the accompanying drawings can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The detachable bolt disclosed in this utility model is mainly used in bolt applications.

[0025] Reference Figures 1 to 4 The detachable bolt includes: a fixed housing 1, a screw body 2 internally threaded to the fixed housing 1, a collar 3 slidably connected to the outside of the screw body 2, a first nut 4 on the outside of the screw body 2, a second nut 5 on the outside of the fixed housing 1, the external thread of the screw body 2 matching the internal thread of the first nut 4, the external thread of the fixed housing 1 engaging with the internal thread of the second nut 5, a protrusion 6 fixedly connected to one end of the screw body 2, a slot 7 on the outside of the fixed housing 1, and a cross groove 8 on one end of the screw body 2.

[0026] In the above technical solution, considering that corrosion or oxidation may cause the bolt shank and nut to jam, making it impossible to disassemble the bolt normally and increasing the difficulty of maintenance and replacement, or that vibration or temperature changes may cause the bolt to loosen, thus affecting the stability and safety of the structure and potentially causing equipment failure or safety hazards, the specific operation is as follows to solve such problems: The fixing housing 1 is fitted onto the outside of the screw body 2 from one end. Then, the second nut 5 is threaded onto the fixing housing 1. The screw body 2 is placed into the through holes at the two connection points. Then, the collar 3 and the first nut 4 are fitted onto the screw body 2 one by one. Simultaneously, the first nut 4 and the second nut 5 are rotated until they are flush with the connection points. A screwdriver is inserted into the cross groove 8 to prevent the screw body 2 from rotating. The first nut 4 is then tightened with tweezers. This fixes the fixing housing 1 and the second nut 5. The screwdriver is then rotated to rotate the screw body 2, allowing it to slowly rotate out from one end. Simultaneously, the protrusion 6 is slowly pushed into the fixing housing. In step 1, the slot 7 is used to slowly open one end of the fixed housing 1, thereby restricting the second nut 5. When the bolt rusts or oxidizes, the opening action of the fixed housing 1 prevents the second nut 5 from loosening. By opening and applying pressure to the second nut 5, the first nut 4 at the other end will also remain tightened. When the bolt cannot be disassembled normally, a screwdriver is used to rotate the screw body 2, causing the protrusion 6 to slowly detach from the fixed housing 1. Then, one end is clamped with tweezers, and the slot 7 closes. During this process, the second nut 5 will loosen. Then, the second nut 5 is loosened, and the first nut 4 will also loosen. Then, the first nut 4 is unscrewed, the collar 3 is removed, and the fixed housing 1 and the screw body 2 are disassembled from the connection. Finally, the fixed housing 1 and the screw body 2 are rotated in the opposite direction to separate the fixed housing 1 from the screw body 2. By designing a new bolt structure, when the bolt corrodes or jams, the expansion effect of the fixed outer shell increases the pressure on the second nut 5, thereby effectively preventing it from loosening. This makes subsequent disassembly work smoother and ensures a tight fit between the two and the connection point, thus improving the stability of the entire structure. At the same time, it reduces the possibility of loosening under the influence of vibration or temperature changes, thereby improving the overall stability and safety of the structure.

[0027] Reference Figures 1 to 4 In a preferred embodiment, the mounting housing 1 is made of aluminum alloy.

[0028] Reference Figures 1 to 4 In a preferred embodiment, the outer side of the protrusion 6 is tapered, the outer diameter of one end of the protrusion 6 is the same as the outer diameter of the screw body 2, and the outer diameter of the other end of the protrusion 6 is the same as the outer diameter of the fixed housing 1; the slot 7 is triangular in shape.

[0029] Reference Figures 1 to 4In a preferred embodiment, the thickness of the fixed outer shell 1 is 0.5mm-1mm;

[0030] Working principle: In use, the fixing shell 1 is fitted onto the outside of the screw body 2 from one end. Then, the second nut 5 is threaded onto the fixing shell 1. The screw body 2 is placed into the through holes at the two connection points. Then, the collar 3 and the first nut 4 are fitted onto the screw body 2 one by one. Then, the first nut 4 and the second nut 5 are rotated simultaneously until they are in contact with the connection points. A screwdriver is inserted into the cross groove 8 to prevent the screw body 2 from rotating. Then, the first nut 4 is clamped and tightened with tweezers. In this way, the fixing shell 1 and the second nut 5 are fixed. Then, the screwdriver is rotated to drive the screw body 2 to rotate, allowing it to slowly rotate out from one end. At the same time, the protrusion 6 is slowly squeezed into the fixing shell 1. The groove 7 is used to slowly open one end of the fixing shell 1, thereby restricting the second nut 5. When the bolt is rusted or oxidized... When this occurs, the fixed housing 1 is spread open to prevent the second nut 5 from loosening. This spread applies pressure to the second nut 5, which also keeps the first nut 4 at the other end tight. When the bolt cannot be removed normally, a screwdriver is used to rotate the screw body 2, causing the protrusion 6 to slowly detach from the fixed housing 1. Then, one end is clamped with tweezers, and the slot 7 closes. During this process, the second nut 5 will loosen. Then, the second nut 5 is loosened, and the first nut 4 will also loosen. Then, the first nut 4 is unscrewed, the collar 3 is removed, and the fixed housing 1 and the screw body 2 are disassembled from the connection. Finally, the fixed housing 1 and the screw body 2 are rotated in the opposite direction to separate the fixed housing 1 from the screw body 2. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A detachable bolt comprising a fixed housing (1), characterized in that, The inside of the fixed shell (1) is threadedly connected with a screw body (2), the outer side of the screw body (2) is slidingly connected with a collar (3), the outer side of the screw body (2) is provided with a first nut (4), the outer side of the fixed shell (1) is provided with a second nut (5), the outer thread of the screw body (2) matches the inner thread of the first nut (4), the outer thread of the fixed shell (1) matches the inner thread of the second nut (5), one end of the screw body (2) is fixedly connected with a protruding block (6), the outer side of the fixed shell (1) is provided with a notch (7), and one end of the screw body (2) is provided with a cross slot (8).

2. The detachable bolt of claim 1, wherein, The fixed shell (1) is made of aluminum alloy material.

3. The detachable bolt of claim 1, wherein The outer side of the protruding block (6) is in conical shape, the outer diameter of one end of the protruding block (6) is the same as the outer diameter of the screw body (2), and the outer diameter of the other end of the protruding block (6) is the same as the outer diameter of the fixed shell (1).

4. The detachable bolt of claim 1, wherein, The notch (7) is in triangular shape.

5. The detachable bolt of claim 1, wherein, The thickness of the fixed shell (1) is 0.5mm-1mm.

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