CN211174934U - Anti-theft bolt assembly - Google Patents
Anti-theft bolt assembly Download PDFInfo
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- CN211174934U CN211174934U CN201921816762.3U CN201921816762U CN211174934U CN 211174934 U CN211174934 U CN 211174934U CN 201921816762 U CN201921816762 U CN 201921816762U CN 211174934 U CN211174934 U CN 211174934U
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- screw rod
- theft bolt
- bolt assembly
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Abstract
The utility model discloses an anti-theft bolt component, which comprises an anti-theft bolt and a disassembly screw rod; the anti-theft bolt comprises a screw rod with external threads and a windmill-shaped bolt head, wherein the bolt head is provided with a round concave hole with internal threads; the external thread of the screw is opposite to the internal thread of the round concave hole and is consistent with the windmill direction of the bolt head, so that a common tool cannot unscrew and disassemble the anti-theft thread through the periphery of the bolt head, and illegal actions such as theft are avoided; and the design has the dismantlement screw rod with circular shrinkage pool looks adaptation, has ensured the convenience of the circumstances such as maintenance.
Description
Technical Field
The utility model relates to a mechanical component specifically is a theftproof bolt assembly.
Background
The statements in this section merely provide background information related to the present disclosure and may constitute prior art. In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art.
At present, many peripheral devices on the market, such as luxury cars and truck wheels with high price or distribution boxes with cables, are easy to peep by lawless persons. Due to various factors, the theft events are forbidden frequently, so that huge economic loss and waste of time and energy are caused to car owners or other owners. Therefore, fasteners such as anti-theft bolts appear on the market, but most fasteners are used for preventing theft by improving the fastening effect, and only lawless persons who do not know the technology can violently and forcibly disassemble the fasteners. Once a lawless person who understands the technology encounters, the tie is unfair only by using a common disassembling tool, and the anti-theft effect cannot be achieved.
Disclosure of Invention
In view of the above, it is an object of the present invention to solve some of the problems of the prior art, or at least alleviate them.
An anti-theft bolt assembly comprises
The anti-theft bolt comprises a screw rod with external threads and a windmill-shaped bolt head; the bolt head comprises a connecting part in a column shape and at least two bulges extending outwards from the side surface of the connecting part; the first end face of the connecting part is fixedly connected with the first end face of the screw rod, and the second end face of the connecting part is provided with an inward round concave hole; an internal thread is arranged in the circular concave hole, and the screwing direction of the internal thread is opposite to that of the external thread of the screw; the projection comprises a first side surface and an arc-shaped second side surface; the first side surface and the second side surface share a first side edge, and the first side surface and the second side surface of the adjacent protrusion share a second side edge; the extending direction of the first side edge of the second side surface to the second side edge of the second side surface is consistent with the screwing direction of the external thread of the screw rod.
And the disassembling screw rod is used for disassembling the anti-theft bolt.
Preferably, the axis of the circular concave hole is in the same line with the axis of the screw. The first side is the plane, the first side to the first side the extending direction of second side passes through the axis of circular shrinkage pool.
The second side surface is smooth.
Furthermore, a hole for the screwing tool to extend into is formed in the second end of the screw rod. The pore is an inner hexagonal pore.
The anti-theft bolt assembly further comprises a bolt fastening sleeve for mounting the anti-theft bolt; an inward concave hole is formed in one end face of the bolt fastening sleeve and matched with the end part of the bolt head; the other end surface is provided with a gap for the screwing tool to extend into.
The first end of the disassembling screw rod is provided with an external thread matched with the internal thread of the round concave hole.
The second end of the disassembling screw rod is provided with a through hole for the screwing tool to extend into.
The utility model discloses following beneficial effect has:
1. the anti-theft bolt adopts a windmill-shaped bolt head with the screwing direction consistent with the external thread screwing direction of the screw rod, and a common tool can only screw down and cannot unscrew when screwing the periphery of the bolt head, thereby playing the anti-theft role;
2. the screwing direction of the internal thread of the round concave hole is opposite to that of the external thread of the screw, and the external thread of the disassembling screw is matched with the internal thread of the round concave hole, so that the anti-theft bolt can be disassembled through the disassembling screw, and is convenient to maintain;
3. through holes, gaps and pores for inserting common tools are designed, so that the screwing operation is more labor-saving, and no other tool is needed for assistance;
4. the screw rod of the anti-theft bolt is provided with an inner hexagonal hole, and the anti-theft bolt is conveniently separated from the disassembling screw rod after being disassembled.
Drawings
FIG. 1 is a schematic view of the anti-theft bolt of the present invention;
FIG. 2 is a sectional view of the anti-theft bolt of the present invention;
FIG. 3 is a top view of the anti-theft bolt of the present invention;
fig. 4 is a schematic view of a concave hole of the bolt fastening sleeve of the present invention;
FIG. 5 is a schematic view of the gap of the bolt-tightening sleeve of the present invention;
fig. 6 is a schematic view of the screw disassembling device of the present invention.
Wherein: 1-a screw; 2-a connecting part; 3-round concave hole; 4-bulge; 5-a first side; 6-a second side; 7-a first side; 8-a second side edge; 9-inner hexagonal hole; 10-concave holes; 11-voids; 12-through holes.
Detailed Description
The following description of the present invention will be further described with reference to the accompanying drawings, and the embodiments of the present invention are only used for illustrating the present invention and not for limiting the present invention, and various replacements and modifications can be made according to the common technical knowledge and the conventional means in the field without departing from the technical idea of the present invention, and all should be included in the scope of the present invention.
As shown in fig. 1 or 2 or 3 or 4 or 5 or 6, an antitheft bolt assembly comprises
The anti-theft bolt comprises a screw rod 1 with external threads and a windmill-shaped bolt head; the bolt head comprises a connecting part 2 in a columnar shape and at least two protrusions 4 extending outwards from the side surface of the connecting part 2; the first end face of the connecting part 2 is fixedly connected with the first end face of the screw rod 1, and the second end face is provided with an inward circular concave hole 3; an internal thread is arranged in the circular concave hole 3, and the screwing direction of the internal thread is opposite to that of the external thread of the screw rod 1; the projection 4 comprises a first side surface 5 and an arc-shaped second side surface 6; the first side surface 5 and the second side surface 6 share a first side edge 7, and the first side surface 5 and the second side surface 6 of the adjacent protrusion 4 share a second side edge 8; the extending direction of the first side edge 7 of the second side surface 6 to the second side edge 8 of the second side surface 6 is consistent with the screwing direction of the external thread of the screw rod 1.
And the disassembling screw rod is used for disassembling the anti-theft bolt.
As shown in fig. 2, when the internal thread of the circular concave hole 3 is a left-hand thread, the external thread of the screw 1 is a right-hand thread, so that the opposite is maintained. In a similar way, when the internal thread of the circular concave hole 3 is a right-handed thread, the external thread of the screw rod 1 is a left-handed thread.
The protrusion 4 is formed such that the bolt head is windmill-shaped and the direction thereof coincides with the tightening direction of the external thread of the screw 1. Due to the characteristic that the windmill-shaped bolt head rotates in a single direction, a common external screwing tool such as a wrench can only apply force in the screwing direction of the external thread of the screw rod 1, and can slide reversely to apply force, so that the anti-theft bolt can not be unscrewed and disassembled by the common external screwing tool and can only be disassembled through the internal thread of the circular concave hole 3, and the anti-theft bolt can be prevented from being disassembled by a lawless person through the common wrench and other tools. Even if a matched tool is manufactured, due to the special stress shape of the petals, the tool can only be screwed down but not loosened, so that the anti-theft effect is achieved. In addition, the second side 6 is smooth, which makes the reverse rotation more difficult and more difficult to unscrew.
Meanwhile, the internal thread of the circular concave hole 3 adopts a specific thread structure and cannot be matched with a common threaded dismounting tool. The first end of dismantling the screw rod be equipped with the external screw thread of circular shrinkage pool 3's internal thread looks adaptation, as shown in fig. 6 to can only come to unscrew the dismantlement to the theftproof bolt through dismantling the screw rod. Meanwhile, the anti-theft bolt can be conveniently disassembled by disassembling the screw rod, and the convenience of maintenance is guaranteed. The internal thread is positioned inside the circular concave hole 3, so that the measurement is difficult, and the difficulty in manufacturing a tool matched with the internal thread is increased; and the thread processing requires professional equipment, thereby again increasing the difficulty of making the tool.
The internal thread of the circular concave hole 3 can be designed into a specific thread structure by adopting modes of adjusting thread pitch and the like, thereby achieving the aim. Even, as each luxury vehicle, a unique thread structure can be designed, just like a coded lock. Only the set of disassembly screw rod of oneself can dismantle, and furthest has avoided the theftproof bolt by the possibility of technical disassembly, has reduced stolen risk.
The second end of the disassembling screw rod is provided with a through hole 12 for a screwing tool to extend into, as shown in fig. 6, so that a common screwing tool, such as an internal hexagonal wrench, can extend into the screw rod, and the screw rod is convenient to rotate and disassemble.
The bolt head is in a windmill-shaped one-way stress shape, as shown in fig. 1 or 3, the protrusion 4 comprises a first side surface 5 and an arc-shaped second side surface 6; the first side surface 5 and the second side surface 6 share a first side edge 7, and the first side surface 5 and the second side surface 6 of the adjacent protrusion 4 share a second side edge 8; the extending direction of the first side edge 7 of the second side surface 6 to the second side edge 8 of the second side surface 6 is consistent with the screwing direction of the external thread of the screw rod 1. When the screw rod 1 is provided with a right-handed thread, the windmill direction of the bolt head is also stressed by the right hand. When the bolt head is acted by a tool such as a spanner clockwise, the first side surface 5 of the bulge 4 is stressed, so that the right-handed screwing can be realized. When the bolt head is acted by the tool such as a spanner in a counterclockwise way, the second side surface 6 of the bulge 4 is an arc-shaped curved surface, so that the spanner cannot apply force to the bolt head and can slide out, and the bolt head cannot rotate in the counterclockwise way, and the aim of unidirectional stress on the bolt head is fulfilled.
The screw 1 is provided with left-handed threads for the same reason.
The cambered surface of the first side surface 6 can be a smooth curve which is slowly excessive and gradually close to the center of the connecting part, so that the sliding rate in the unscrewing direction is improved, tools such as a wrench and the like cannot unscrew the anti-theft bolt, and the anti-theft capacity is improved.
As shown in fig. 4 or 5, the antitheft bolt assembly further comprises a bolt fastening sleeve for mounting the antitheft bolt; an inward concave hole 10 is formed in one end face of the bolt fastening sleeve, and the concave hole 10 is matched with the end part of the bolt head; the other end surface is provided with a gap 11 for the screwing tool to extend into. The concave hole 10 is aligned to the bolt head, the bolt fastening sleeve can be sleeved on the bolt head, and the bolt fastening sleeve extends into the gap 11 to be screwed by a common tool, so that the operation of installing the anti-theft bolt can be completed. The bolt fastening sleeve is adopted, so that the mounting and screwing operation of the anti-theft bolt can be more conveniently carried out, and the windmill-shaped bolt head cannot be greatly abraded.
The concave hole 10 of the bolt fastening sleeve can be completely matched with the bolt head, so that the sliding condition caused by overlarge gap during screwing is avoided.
The number of the protrusions 4 extending outwards from the side of the connecting portion 2 may be 4, and they are arranged regularly as shown in fig. 1 or 3. The number of the cells can be 2 or 3, or 5 or 6, or more, and the cells can be made according to actual conditions. A plurality of protrusions 4 are connected end to end at the periphery of the connecting portion 2, thereby constituting a windmill type.
The bulges 4 can be irregularly arranged, and the anti-theft effect can be achieved.
Preferably, the axis of the round concave hole 3 and the axis of the screw rod 1 are in the same straight line, so that the anti-theft bolt is stressed more uniformly when being driven to rotate by the disassembled screw rod.
The extension surface of the first side surface 5 does not pass through the axis of the circular concave hole 3 and can be inclined to a certain degree. The tightening can also be performed, for example, by tilting towards the second side 6, but the force-bearing surface is reduced, which increases the wear of the projection 4. And the side surface can be inclined towards the direction far away from the second side surface 6, and a wrench and the like are not easy to bear force and slide when the side surface is screwed down.
The first side 5 may also be an arc-shaped surface.
The protrusion 4 wraps the connecting part 2, so that a common tool such as a wrench can not directly contact the connecting part 2, and the possibility of screwing the connecting part 2 to disassemble the anti-theft bolt is avoided. The projections 4 may also extend beyond the second end face of the connecting portion 2.
The concave hole 10 of the bolt fastening sleeve is matched with the shape of the bolt head, and as shown in fig. 4, the depth of the concave hole 10 can be set according to actual conditions so as to be matched with an anti-theft bolt for screwing.
The second end of screw rod 1 is equipped with the hole that supplies to twist the instrument and stretch into, as shown in fig. 2, after the theftproof bolt was pulled down, can insert the instrument the hole is fixed the theftproof bolt to the screw rod is dismantled in the antiport, with theftproof bolt and dismantlement screw rod separation, no longer need other instruments, supplementary such as spanner, the operation is more convenient. The pore is an inner hexagonal hole 9, and an inner hexagonal wrench can be inserted into the pore for fixing.
The gap 11 of the bolt fastening sleeve, the hole of the anti-theft bolt and the through hole 12 of the disassembling screw rod are all used for inserting tools, and the shape of the anti-theft bolt can be matched with the existing tools, such as a square hole, a hexagonal hole and the like.
When the anti-theft bolt needs to be installed, a screwing tool is inserted into the gap 11 only by sleeving the bolt fastening sleeve on the bolt head of the anti-theft bolt, the bolt is screwed down by clockwise rotation, and then the bolt fastening sleeve is taken off to complete installation.
When the anti-theft bolt needs to be disassembled, the through hole 12 of the disassembling screw rod is inserted through a tool, the tool is rotated anticlockwise, the anti-theft bolt can be unscrewed through the disassembling screw rod, and the anti-theft bolt is disassembled. The tool is inserted into the inner hexagonal hole of the anti-theft bolt, and the tool is reversely screwed, so that the anti-theft bolt can be separated from the disassembling screw rod.
The rotation direction can be actually operated according to the screwing direction of the external thread of the screw rod 1, and the anti-theft bolt can also be installed anticlockwise and removed clockwise.
The screw 1, the bolt head, as well as the connecting portion 2 and the at least two protrusions 4, may all be integrally formed. A limiting part and the like can be arranged between the bolt head and the screw rod 1 and designed according to actual conditions.
The fixed connection which is not specified can be a connection mode such as riveting, welding, bolt connection and the like, a movable connection can be a connection mode such as hinging and the like.
Claims (9)
1. An anti-theft bolt assembly, characterized in that, comprises
The anti-theft bolt comprises a screw rod (1) with external threads and a windmill-shaped bolt head; the bolt head comprises a columnar connecting part (2) and at least two bulges (4) extending outwards from the side surface of the connecting part (2); the first end face of the connecting part (2) is fixedly connected with the first end face of the screw (1), and the second end face is provided with an inward round concave hole (3); an internal thread is arranged in the circular concave hole (3), and the screwing direction of the internal thread is opposite to that of the external thread of the screw (1); the bulge (4) comprises a first side surface (5) and an arc-shaped second side surface (6); the first side (5) and the second side (6) share a first side (7), the first side (5) and the second side (6) of the adjacent protrusion (4) share a second side (8); the extending direction of the first side edge (7) of the second side surface (6) to the second side edge (8) of the second side surface (6) is consistent with the screwing direction of the external thread of the screw rod (1);
and the disassembling screw rod is used for disassembling the anti-theft bolt.
2. Anti-theft bolt assembly according to claim 1, characterized in that the axis of the circular recess (3) is in line with the axis of the threaded rod (1).
3. The anti-theft bolt assembly according to claim 2, characterized in that the first side face (5) is a plane, the first side edge (7) of the first side face (5) passing through the axis of the circular recess (3) in the direction of extension of the second side edge (8) of the first side face (5).
4. Anti-theft bolt assembly according to claim 1, characterized in that the second side face (6) is smooth surfaced.
5. Anti-theft bolt assembly according to claim 1, characterized in that the second end of the threaded rod (1) is provided with an aperture into which a turning tool can be inserted.
6. Anti-theft bolt assembly according to claim 5, characterized in that the aperture is an internal hexagonal hole (9).
7. An antitheft bolt assembly according to claim 1 further comprising a bolt tightening sleeve for mounting said antitheft bolt; an inward concave hole (10) is formed in one end face of the bolt fastening sleeve, and the concave hole (10) is matched with the end part of the bolt head; the other end surface is provided with a gap (11) for the screwing tool to extend into.
8. An anti-theft bolt assembly according to claim 1, characterized in that the first end of the dismounting screw is provided with an external thread adapted to the internal thread of the circular recess (3).
9. An anti-theft bolt assembly according to claim 1, characterised in that the second end of the dismounting screw is provided with a through hole (12) for a turning tool to extend into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816762.3U CN211174934U (en) | 2019-10-28 | 2019-10-28 | Anti-theft bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816762.3U CN211174934U (en) | 2019-10-28 | 2019-10-28 | Anti-theft bolt assembly |
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| Publication Number | Publication Date |
|---|---|
| CN211174934U true CN211174934U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921816762.3U Active CN211174934U (en) | 2019-10-28 | 2019-10-28 | Anti-theft bolt assembly |
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| CN (1) | CN211174934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922951A (en) * | 2021-01-18 | 2021-06-08 | 吴铁成 | Anti-theft bolt assembly |
-
2019
- 2019-10-28 CN CN201921816762.3U patent/CN211174934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922951A (en) * | 2021-01-18 | 2021-06-08 | 吴铁成 | Anti-theft bolt assembly |
| CN112922951B (en) * | 2021-01-18 | 2022-12-06 | 深圳市朗固精密五金有限公司 | Anti-theft bolt assembly |
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