Anti-loosening and anti-theft nut

Abstract

The utility model discloses an anti-loosening and anti-theft nut, and relates to the field of anti-theft nuts. The bolt comprises a bolt, a nut mechanism and a loosening mechanism, the loosening mechanism comprises a mounting base, a plurality of inserting pieces are fixed below the mounting base, an outer clamping sleeve is fixedly arranged on the outer side of the mounting base, an inner hexagonal groove is formed in the inner side of the outer clamping sleeve, the inner hexagonal groove is connected with the nut mechanism in a clamped and sleeved mode, and the nut mechanism is connected with the outer hexagonal groove in a clamped and sleeved mode. By means of the loosening mechanism, when the nut needs to be disassembled, the inserting piece below the mounting base of the loosening mechanism can be accurately inserted into the gap between the nut body and the outer lantern ring and is clamped with the arc-shaped face of the inner inclined face, at the moment, rotating force is applied through the inner hexagonal groove of the outer lantern ring, and the inserting piece and the inner inclined face interact with each other; the rotating force is transmitted to the outer lantern ring, and then the outer lantern ring is pushed to drive the nut body to rotate, so that the nut can be smoothly unscrewed and disassembled by means of the force of the loosening mechanism during disassembly, and the problem that a traditional anti-theft nut is difficult to disassemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft nuts, specifically an anti-loosening and anti-theft nut. Background Technology

[0002] Anti-loosening and anti-theft nuts are special nuts with anti-loosening and anti-theft functions. Their design principle is achieved through a special internal thread structure and internal construction. They are widely used in occasions where it is necessary to prevent loosening and theft. These nuts can effectively protect the safety of facilities and ensure the stable operation of equipment. They are important components in the field of mechanical connection.

[0003] According to the inspection institute, announcement number CN209458258U, "An anti-loosening and anti-theft nut", it is stated that: when the present invention is tightened in the forward direction, the nut sleeve 2 is reversed by using a wrench. At this time, the outer inclined surface on the outer locking block 7 and the inner inclined surface 5 on the inner locking block 4 abut against each other. The inner inclined surface 5 pushes the outer locking block 7 to squeeze the elastic element 8 through the outer inclined surface 9, causing the outer locking block 7 to slide into the slide groove 6, thereby preventing the nut body 1 from being reversed and loosened, thus achieving the anti-theft effect;

[0004] However, there is a problem in actual use. Specifically, although the anti-theft nut in the prior art can lock in one direction, it is also difficult to disassemble. If you want to disassemble the nut, you can use force, such as burning or cutting. Therefore, the inventor urgently needs to design a disassembly structure that can be adapted to the nut, so as to achieve the purpose of anti-theft while also being able to remove the anti-theft nut by appropriate means, thus improving the convenience of using the nut. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an anti-loosening and anti-theft nut to solve the technical problem of poor disassembly convenience of traditional anti-theft nuts.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening and anti-theft nut, comprising a bolt, a nut mechanism, and a loosening mechanism. The loosening mechanism includes a mounting base, with several inserts fixed below the mounting base. An outer sleeve is fixedly provided on the outer side of the mounting base, and an inner hexagonal groove is formed on the inner side of the outer sleeve. The inner hexagonal groove engages with the nut mechanism.

[0007] By adopting the above technical solution, the dual functions of anti-theft and detachability are achieved. Several inserts are fixed below the mounting base in the loosening mechanism, so that when the nut needs to be removed, the inserts can be inserted into specific positions of the nut mechanism, making subsequent disassembly possible.

[0008] Furthermore, the nut mechanism includes a nut body and an outer ring, the outer ring being sleeved on the outside of the nut body, a gap being formed between the nut body and the outer ring, and a plurality of inner inclined surfaces being provided on the outside of the nut body.

[0009] By adopting the above technical solution, the nut is structurally more stable and can withstand greater external forces without being easily damaged. At the same time, the gap formed between the nut body and the outer ring provides space for the insertion of the insert, so that when the nut needs to be disassembled, the insert can be smoothly inserted and play a transmission role.

[0010] Furthermore, the inner side of the outer ring is provided with several mounting grooves at equal intervals, and the inner side of the mounting groove is elastically connected with a retaining tooth through an elastic element. The retaining tooth engages with the inner inclined surface to realize the one-way engagement transmission between the nut body and the outer ring.

[0011] By adopting the above technical solution, the locking teeth can flexibly engage with the inner inclined surface on the outer side of the nut body, which not only realizes the one-way locking transmission between the nut body and the outer ring, but also effectively prevents the nut from loosening in the reverse direction.

[0012] Furthermore, the insert is inserted into the gap between the nut body and the outer ring, and the insert engages with the arc-shaped surface of the inner inclined surface to achieve bidirectional engagement transmission between the nut body and the outer ring.

[0013] By adopting the above technical solution, a bidirectional snap-fit ​​transmission between the nut body and the outer ring is realized. When it is necessary to disassemble the nut, by applying an appropriate force to make the insert interact with the inner inclined surface, the outer ring can be pushed to drive the nut body to rotate, thereby realizing the smooth disassembly of the nut.

[0014] Furthermore, both the outer outer ring and the outer retaining sleeve are hexagonal prism structures, providing a force point for the tool, and the mounting base is sleeved with the bolt.

[0015] By adopting the above technical solution, not only is the nut more neat and beautiful in appearance, but more importantly, it provides a force point for tools. When it is necessary to disassemble the nut, torque can be applied by tools such as a special hex wrench, so that the outer ring and the outer ferrule can rotate synchronously, thereby driving the nut body to be disassembled.

[0016] Furthermore, a limiting ring is fixed to the lower outer side of the nut body, and the outer ring is limited by being sleeved with the nut body through a fastening ring and a limiting ring to restrict the position of the outer ring.

[0017] By adopting the above technical solution, the outer ring is restricted by the limiting ring when it is sleeved on the nut body, thereby ensuring the stability of the outer ring position. At the same time, the outer ring is limited by the snap ring and the limiting ring, which further enhances the connection strength between the outer ring and the nut body.

[0018] In summary, the present invention has the following main advantages:

[0019] This invention utilizes a loosening mechanism. When the nut needs to be removed, the insert below the mounting base of the loosening mechanism can precisely insert into the gap between the nut body and the outer ring, and form a snap-fit ​​with the arc-shaped surface of the inner bevel. This bidirectional snap-fit ​​transmission design establishes an effective connection between the outer ring and the nut body. At this time, a rotational force is applied through the inner hexagonal groove of the outer sleeve. The insert interacts with the inner bevel, transmitting the rotational force to the outer ring, which in turn pushes the outer ring to rotate the nut body. This allows the nut to be easily loosened and removed with the help of the loosening mechanism, avoiding the problem of difficult removal of traditional anti-theft nuts. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembled three-dimensional structure of this utility model;

[0021] Figure 2 This is a bottom view of the loosening mechanism of this utility model.

[0022] Figure 3 This is a schematic diagram of the main cross-sectional structure of the nut body of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the nut body of this utility model.

[0024] In the diagram: 1. Bolt; 2. Nut mechanism; 201. Nut body; 202. Outer ring; 203. Inner bevel; 204. Mounting groove; 205. Elastic element; 206. Clamping tooth; 207. Limiting ring; 208. Snapping ring; 3. Release mechanism; 301. Mounting base; 302. Insert; 303. Outer ferrule; 304. Internal hexagonal groove. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In this embodiment:

[0027] A type of anti-loosening and anti-theft nut, such as Figures 1-4As shown, the device includes a bolt 1, a nut mechanism 2, and a loosening mechanism 3. The loosening mechanism 3 includes a mounting base 301, with several inserts 302 fixed below the mounting base 301. An outer sleeve 303 is fixedly provided on the outer side of the mounting base 301, and an internal hexagonal groove 304 is formed on the inner side of the outer sleeve 303. The internal hexagonal groove 304 engages with the nut mechanism 2, achieving the dual functions of anti-theft and detachability. The several inserts 302 fixed below the mounting base 301 in the loosening mechanism 3 allow the inserts to be inserted into specific positions of the nut mechanism 2 when the nut needs to be removed, making subsequent disassembly possible. At the same time, the internal hexagonal groove 304 formed on the inner side of the outer sleeve 303 engages with the nut mechanism 2, ensuring the stability of the nut during normal use and providing a force point for special tools through the internal hexagonal groove, allowing sufficient torque to be applied during disassembly and achieving smooth disassembly of the nut.

[0028] See Figure 3 , Figure 4 The nut mechanism 2 includes a nut body 201 and an outer ring 202. The outer ring 202 is sleeved on the outside of the nut body 201, and a gap is formed between the nut body 201 and the outer ring 202. Several inner inclined surfaces 203 are provided on the outside of the nut body 201, making the nut more structurally stable and able to withstand greater external forces without being easily damaged. At the same time, the gap formed between the nut body 201 and the outer ring 202 provides space for the insertion of the insert 302, so that the insert 302 can be smoothly inserted and play a transmission role when the nut needs to be disassembled. In addition, the several inner inclined surfaces 203 provided on the outside of the nut body 201 cooperate with the locking teeth 206 on the inside of the outer ring 202 to realize the one-way locking transmission of the nut, effectively preventing the nut from being loosened in the reverse direction and improving the anti-theft performance of the nut.

[0029] See Figure 3 , Figure 4 The inner side of the outer ring 202 is provided with several mounting grooves 204 at equal intervals. The inner side of the mounting grooves 204 is elastically connected to the retaining teeth 206 through the elastic element 205. The retaining teeth 206 engage with the inner inclined surface 203 to realize the one-way engagement transmission between the nut body 201 and the outer ring 202. This allows the retaining teeth to flexibly engage with the inner inclined surface 203 on the outer side of the nut body 201. This not only realizes the one-way engagement transmission between the nut body 201 and the outer ring 202 and effectively prevents the nut from being loosened in the reverse direction, but also, through the elastic action of the elastic element, prevents the retaining teeth 206 from engaging with the inclined surface of the inner inclined surface 203 when the outer ring 202 rotates in the opposite direction, thereby achieving a good anti-theft effect.

[0030] See Figure 1 , Figure 2The insert 302 is inserted into the gap between the nut body 201 and the outer ring 202, and the insert 302 engages with the arc-shaped surface of the inner inclined surface 203, realizing bidirectional engagement transmission between the nut body 201 and the outer ring 202. When the nut needs to be disassembled, by applying an appropriate force to make the insert 302 interact with the inner inclined surface 203, the outer ring 202 can be pushed to drive the nut body 201 to rotate, thereby realizing the smooth disassembly of the nut. At the same time, this bidirectional engagement transmission also enhances the convenience of nut disassembly, so as to facilitate the quick disassembly of the anti-theft nut.

[0031] See Figure 1 , Figure 2 Both the outer ring 202 and the outer ferrule 303 are hexagonal prism structures, providing a force point for the tool. The mounting base 301 is fitted with the bolt 1, which not only makes the nut more neat and beautiful in appearance, but more importantly, provides a force point for the tool. When it is necessary to disassemble the nut, torque can be applied by tools such as a special hexagonal wrench, so that the outer ring and the outer ferrule can rotate synchronously, thereby driving the nut body to be disassembled. At the same time, the hexagonal prism structure also has high load-bearing capacity and stability, and can withstand large external forces without being easily deformed or damaged.

[0032] See Figure 3 A limiting ring 207 is fixed to the lower outer side of the nut body 201. The outer ring 202 is limited by the fastening ring 208 and the limiting ring 207, which restrict the position of the outer ring 202. This ensures that the outer ring 202 is restricted by the limiting ring 207 when it is fitted onto the nut body 201, thus guaranteeing the stability of the outer ring 202. At the same time, the connection between the outer ring 202 and the nut body 201 is further enhanced by the fastening ring 208 and the limiting ring 207, preventing the outer ring 202 from falling off or shifting when subjected to external force. This not only improves the overall stability of the nut but also allows the nut to cooperate more smoothly with the loosening mechanism during disassembly, enabling quick and safe disassembly of the nut.

[0033] The implementation principle of this embodiment is as follows: During normal use, the nut body 201 and outer ring 202 in the nut mechanism 2 are connected by a 1:1 engagement transmission between the locking teeth 206 and the inner inclined surface 203 via the elastic element 205, making it difficult for the nut to be loosened in the reverse direction and achieving the anti-theft function. When it is necessary to disassemble the nut, the insert 302 below the mounting base 301 of the loosening mechanism 3 is inserted into the gap between the nut body 201 and the outer ring 202 and engages with the arc-shaped surface of the inner inclined surface 203 to achieve bi-directional engagement transmission. At this time, a rotational force is applied through the inner hexagonal groove 304 of the outer sleeve 303. The insert 302 and the inner inclined surface 203 interact to push the outer ring 202 to drive the nut body 201 to rotate, thereby allowing the nut body 201 to be loosened and disassembled smoothly. The hexagonal prism structure of the outer ring 202 and the outer sleeve 303 provides a force point for the tool, making operation convenient.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A theft-proof and anti-loose nut, characterized in that: Including bolt (1), nut mechanism (2), loosening mechanism (3), the loosening mechanism (3) includes mounting seat (301), the lower part of mounting seat (301) is fixed with several inserts (302), the outer side of mounting seat (301) is fixedly provided with outer sleeve (303), the inner side of outer sleeve (303) is formed with internal hexagonal groove (304), internal hexagonal groove (304) is engaged with nut mechanism (2) sleeve joint.

2. The tamper-proof nut of claim 1, wherein: The nut mechanism (2) includes nut body (201), sleeve ring (202), the sleeve ring (202) is sleeved on the outer side of nut body (201), the gap is formed between nut body (201), sleeve ring (202), the outer side of nut body (201) is provided with several inner inclined surfaces (203).

3. The tamper-proof nut of claim 2, wherein: The inner side of sleeve ring (202) is equidistantly provided with several installation grooves (204), the inner side of installation groove (204) is elastically connected with pawl (206) through elastic element (205), pawl (206) is connected with inner inclined surface (203), realizes the one-way clamping transmission of nut body (201) and sleeve ring (202).

4. The tamper-proof nut of claim 1, wherein: The insert (302) is inserted into the gap between nut body (201) and sleeve ring (202), and the curved surface of insert (302) is connected with inner inclined surface (203), which realizes the bidirectional clamping transmission of nut body (201) and sleeve ring (202).

5. The tamper-proof nut, according to claim 2, wherein: The sleeve ring (202) and the outer sleeve (303) are both hexagonal prism structure, which provides force point for tools, and the mounting seat (301) is sleeved with the bolt (1).

6. The tamper-proof nut, according to claim 2, wherein: The outer side of nut body (201) is fixedly provided with limiting ring (207), the sleeve ring (202) is sleeved and limited with nut body (201) through buckle ring (208) and limiting ring (207), so as to limit the position of sleeve ring (202).

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