CN217713281U - Anti-theft bolt with locking mechanism - Google Patents
Anti-theft bolt with locking mechanism Download PDFInfo
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- CN217713281U CN217713281U CN202220934176.4U CN202220934176U CN217713281U CN 217713281 U CN217713281 U CN 217713281U CN 202220934176 U CN202220934176 U CN 202220934176U CN 217713281 U CN217713281 U CN 217713281U
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- China
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- mounting hole
- limiting
- bolt
- protective cover
- locking mechanism
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Abstract
The utility model belongs to the technical field of the fastener technique and specifically relates to an anti-theft bolt with locking mechanism. The utility model discloses a bolt head upper surface of anti-theft bolt with locking mechanism is equipped with the protective cover, is provided with the fastening double-screw bolt that extends to first mounting hole in the third mounting hole, and the protective cover prevents fastening double-screw bolt from being corroded by external rainwater, is provided with the rotation piece in the second mounting hole, and rotation piece and fastening double-screw bolt threaded connection are controlled the rotation piece through specialized tool and are driven fastening double-screw bolt, promote the theftproof nature; when the first elastic limiting device rotates the protective cover after the bolt is fixed, the first limiting block bounces into the opening in the upper surface of the first cylinder, and the anti-theft performance is improved; the inner bottom surface of the second mounting hole is fixedly provided with a plane bearing, the lower bottom surface of the rotating block is fixedly connected with the upper surface of the plane bearing, and the plane bearing is convenient for fastening by a user and improves the applicability; the second elastic limiting device of the limiting part is matched with the limiting groove of the rotating block, so that the anti-theft performance is further improved.
Description
Technical Field
The utility model belongs to the technical field of the fastener technique and specifically relates to an anti-theft bolt with locking mechanism.
Background
The bolt is widely applied in daily life and industrial production and manufacturing, and the application range of the bolt is electronic products, mechanical products, digital products, electric power equipment, electromechanical products, ships, vehicles, hydraulic engineering and even bolts are also used in chemical experiments, so the bolt is also called industrial rice, has important functions in industry, and is frequently matched with nuts for use.
The bolt among the prior art sets up cross recess or flower shape groove on the bolt head more, use fastening tool commonly used can make things convenient for the fastening of bolt, the bolt repeatedly usable of this kind of structure, but can't be used for the fastening or the installation that need the permanent facility of theftproof, and the most theftproof bolt of using at present prevents that equipment is stolen through twisting off the fastening head on top after the fastening mostly, this kind of bolt can play fine theftproof effect, but the section department of bolt-up head exposes outside for a long time, receive external rainwater to influence and lead to whole bolt rust and corruption easily, the suitability is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, the anti-theft bolt with the locking mechanism is provided, and the problems that a cross groove or a flower-shaped groove is formed in a bolt head of the bolt in the prior art, the bolt can be conveniently fastened by using a common fastening tool, the bolt with the structure can be repeatedly used and cannot be used for fastening or mounting permanent facilities needing to be prevented from being stolen, most anti-theft bolts used at present are used for preventing equipment from being stolen by screwing off fastening heads at the top ends after being fastened, although the bolt can achieve a good anti-theft effect, the cross section of the bolt fastening head is exposed outside for a long time, the whole bolt is easily rusted and corroded due to the influence of external rainwater, and the applicability is not high are solved.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an anti-theft bolt with locking mechanism, includes the bolt head, with first cylinder of bolt head body coupling and with first cylinder bottom threaded connection's second cylinder, the upper surface of bolt head is provided with the protective cover, the first mounting hole to the protective cover inside is seted up to the lower bottom surface of first cylinder, the second mounting hole has been seted up in the front of second cylinder, the third mounting hole has been seted up at the interior bottom surface middle part of second mounting hole, be provided with the fastening stud who extends to first mounting hole in the third mounting hole, be provided with rotatory piece in the second mounting hole, the internal thread through-hole has been seted up at the middle part of rotatory piece, rotatory piece and fastening stud threaded connection.
The interior bottom surface of protective cover is provided with the horizontal pivoted rotation axis of control protective cover, the protective cover rotate with first cylinder through the rotation axis and be connected, the interior top surface of first mounting hole is provided with first elasticity stop device, first elasticity stop device's lower bottom surface and fastening stud's upper surface in close contact with.
The first elastic limiting device comprises a first spring and a first limiting block, the top end of the first spring is fixedly connected with the inner top surface of the first mounting hole, and the bottom end of the first spring is fixedly connected with the upper surface of the first limiting block.
The inner bottom surface of the second mounting hole is fixedly provided with a plane bearing, the middle part of the plane bearing is provided with a through hole matched with the fastening stud, and the lower bottom surface of the rotating block is fixedly connected with the upper surface of the plane bearing.
The fastening stud comprises a limiting part and a locking part integrally connected with the bottom end of the limiting part, the outer surface of the limiting part is smooth, external threads are arranged on the outer annular surface of the locking part, the upper surface of the limiting part is in close contact with the lower bottom surface of the first limiting block, and the lower bottom surface of the locking part is flush with the lower bottom surface of the second column body.
A plurality of grooves are formed in the middle of the outer ring surface of the limiting part, second elastic limiting devices are arranged in the grooves, and limiting grooves are formed in the middle of the inner thread of the rotating block corresponding to the second elastic limiting devices.
The second elastic limiting device comprises a second spring and a second limiting block, the right end face of the second spring is fixedly connected with the inner bottom face of the limiting bottom groove, and the left end face of the second spring is fixedly connected with the right side face of the second limiting block.
The height of the limiting part is the same as that of the rotating block.
The utility model has the advantages that:
(1) The utility model discloses a theftproof bolt with locking mechanism comprises bolt head, first cylinder and second cylinder, and the upper surface of bolt head is provided with the protective cover, is provided with the fastening double-screw bolt that extends to first mounting hole in the third mounting hole, and the protective cover prevents that the inside fastening double-screw bolt from being corroded by external rainwater, is provided with the rotation piece in the second mounting hole, and rotation piece and fastening double-screw bolt threaded connection drive fastening double-screw bolt and structure be connected through specialized tool control rotation piece, promote theftproof nature;
(2) When the first elastic limiting device rotates the protective cover after the bolt is fixed, the first limiting block of the first elastic limiting device is bounced into the opening surface on the upper surface of the first cylinder, so that the anti-theft performance is further improved;
(3) The inner bottom surface of the second mounting hole is fixedly provided with a plane bearing, the lower bottom surface of the rotating block is fixedly connected with the upper surface of the plane bearing, and the plane bearing is convenient for fastening by a user and improves the applicability;
(4) The second elastic limiting device on the limiting part is matched with the limiting groove of the rotating block, so that the anti-theft performance is further improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an internal sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
In the drawing, 1, a bolt head, 2, a first column body, 3, a second column body, 4, a protective cover, 5, a first mounting hole, 6, a second mounting hole, 7, a third mounting hole, 8, a fastening stud, 9, a rotating block, 10, a rotating shaft, 11, a first elastic limiting device, 12, a first spring, 13, a first limiting block, 14, a plane bearing, 15, a limiting part, 16, a locking part, 17, a second elastic limiting device, 18, a limiting groove, 19, a second spring and 20, a second limiting block.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
Fig. 1, fig. 2 and fig. 3 show an anti-theft bolt with locking mechanism, including bolt head 1, first cylinder 2 and second cylinder 3 with 2 bottom threaded connections of first cylinder of bolt head 1 body coupling, the upper surface of bolt head 1 is provided with protective cover 4, first mounting hole 5 to the inside of protective cover 4 has been seted up to the lower bottom surface of first cylinder 2, second mounting hole 6 has been seted up to the front of second cylinder 3, third mounting hole 7 has been seted up at the interior bottom surface middle part of second mounting hole 6, be provided with fastening stud 8 that extends to first mounting hole 5 in the third mounting hole 7, protective cover 4 prevents that inside fastening stud 8 from being corroded by external rainwater, be provided with rotatory piece 9 in the second mounting hole 6, the internal thread through-hole has been seted up at the middle part of rotatory piece 9, rotatory piece 9 and fastening stud 8 threaded connection, it is connected with the structure to drive fastening stud 8 through rotatory piece of specialized tool control 9, promote theftproof nature.
Further, in order to prevent the internal fastening stud 8 from being corroded by external rainwater and simultaneously improve the anti-theft performance, the inner bottom surface of the protective cover 4 is provided with a rotating shaft 10 for controlling the protective cover 4 to horizontally rotate, the protective cover 4 is rotatably connected with the first cylinder 2 through the rotating shaft 10, the inner top surface of the first mounting hole 5 is provided with a first elastic limiting device 11, and the lower bottom surface of the first elastic limiting device 11 is in close contact with the upper surface of the fastening stud 8.
Further, in order to improve the anti-theft performance of the structural bolt, the first elastic limiting device 11 comprises a first spring 12 and a first limiting block 13, the top end of the first spring 12 is fixedly connected with the inner top surface of the first mounting hole 5, and the bottom end of the first spring 12 is fixedly connected with the upper surface of the first limiting block 13.
The embodiment is as follows: as shown in fig. 1, before fastening, the lower bottom surface of the first stopper 13 is in surface contact with the upper surface of the fastening stud 8, when a structural member needs to be fastened, the protective cover 4 is horizontally pushed to one side of the bolt, and for anti-theft purposes, the shape of the rotating block 9 can be made into a different shape, the rotating block 9 is driven to rotate by a special tool with a cross section matched with the outer size of the rotating block 9, as shown in fig. 3, the rotating block 9 controls the fastening stud 8 to be screwed out of the second column 3, the fastening stud 8 extending out of the lower bottom surface of the second column 3 is connected with a threaded hole of the fastened structural member, after fastening is completed, the first stopper 13 is pinched by fingers and pressed upwards, the first stopper 13 is pressed into the protective cover 4, the protective cover 4 is pushed in the opposite direction to be overlapped with the first cylinder 2, and when the first stopper 13 enters the upper opening of the first cylinder 2, the protective cover 4 is clamped into the first mounting hole 5 under the elastic force of the first spring 12, and at this time, the protective cover 4 is locked.
Further, in order to facilitate fastening operation, particularly to improve applicability when the fastening device is used for fastening a large bolt, a plane bearing 14 is fixedly arranged on the inner bottom surface of the second mounting hole 6, a through hole matched with the fastening stud 8 is formed in the middle of the plane bearing 14, and the lower bottom surface of the rotating block 9 is fixedly connected with the upper surface of the plane bearing 14.
As shown in fig. 1, when the tool is tightly fitted on the rotary block 9 and rotates, under the action of the flat bearing 14, the friction between the lower bottom surface of the rotary block 9 and the inner bottom surface of the second mounting hole 6 is reduced, so that the rotation is time-saving and labor-saving, the flat bearing 14 can be generally a flat thrust ball bearing or a flat thrust needle bearing which is mature in the market, the lower bottom surface of the rotary block 9 is fixedly connected with the upper surface of the flat bearing 14, in order to fasten the rotary block 9 and avoid the rotary block 9 from floating up and down, an external thread can be arranged on the outer annular surface of the flat bearing 14, and an internal thread is arranged on the inner annular surface corresponding to the second mounting hole 6 for fixing the flat bearing 14.
Further, in order to improve the anti-theft performance of the bolt, the fastening stud 8 comprises a limiting part 15 and a locking part 16 integrally connected with the bottom end of the limiting part 15, the outer surface of the limiting part 15 is smooth, an external thread is arranged on the outer annular surface of the locking part 16, the upper surface of the limiting part 15 is in close contact with the lower bottom surface of the first limiting block 13, the lower bottom surface of the locking part 16 is flush with the lower bottom surface of the second column body 3, a plurality of grooves are formed in the middle of the outer annular surface of the limiting part 15, second elastic limiting devices 17 are arranged in the grooves, and limiting grooves 18 are formed in the middle of the internal thread of the rotating block 9 corresponding to the second elastic limiting devices 17.
Further, in order to improve the anti-theft performance of the bolt, the second elastic limiting device 17 comprises a second spring 19 and a second limiting block 20, the right end face of the second spring 19 is fixedly connected with the inner bottom face of the groove of the limiting portion 15, and the left end face of the second spring 19 is fixedly connected with the right side face of the second limiting block 20.
Example (b): as shown in fig. 3, when the rotating block 9 is rotated, and the last turn of the thread at the upper end of the locking portion 16 is screwed out of the rotating block 9, the limiting portion 15 completely enters the rotating block 9, and at this time, the second limiting block 20 is clamped into the limiting groove 18 at the corresponding position under the elastic force of the second spring 19, and even if the rotating block 9 is rotated reversely at this time, the fastening stud 8 cannot be screwed out any more.
Further, in order to ensure that the locking portion 16 is not unscrewed and to improve the theft prevention, the height of the stopper portion 15 is the same as the height of the rotation block 9.
The utility model discloses a theftproof bolt with locking mechanical system comprises bolt head 1, first cylinder 2 and second cylinder 3, the upper surface of bolt head 1 is provided with protective cover 4, be provided with the fastening double-screw bolt 8 that extends to first mounting hole 5 in the third mounting hole 7, the internal fastening double-screw bolt 8 of protective cover 4 prevention is corroded by external rainwater, be provided with rotatory piece 9 in the second mounting hole 6, rotatory piece 9 and fastening double-screw bolt 8 threaded connection, control rotatory piece 9 through specialized tool and drive fastening double-screw bolt 8 and be connected with the structure, promote theftproof nature; when the first elastic limiting device 11 rotates the protective cover 4 after the bolt is fixed, the first limiting block 13 of the first elastic limiting device is bounced into the opening surface on the upper surface of the first column body 2, so that the anti-theft performance is further improved; a plane bearing 14 is fixedly arranged on the inner bottom surface of the second mounting hole 6, the lower bottom surface of the rotating block 9 is fixedly connected with the upper surface of the plane bearing 14, and the plane bearing 14 facilitates fastening of a user and improves applicability; the second elastic limiting device 17 on the limiting part 15 is matched with the limiting groove 18 of the rotating block 9, so that the anti-theft performance is further improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides an anti-theft bolt with locking mechanical system, includes bolt head (1), with first cylinder (2) of bolt head (1) body coupling and with first cylinder (2) bottom threaded connection's second cylinder (3), characterized by: the upper surface of bolt head (1) is provided with protective cover (4), first mounting hole (5) to protective cover (4) inside have been seted up to the lower bottom surface of first cylinder (2), second mounting hole (6) have been seted up in the front of second cylinder (3), third mounting hole (7) have been seted up at the interior bottom surface middle part of second mounting hole (6), be provided with fastening stud (8) that extend to first mounting hole (5) in third mounting hole (7), be provided with rotatory piece (9) in second mounting hole (6), the internal thread through-hole has been seted up at the middle part of rotatory piece (9), rotatory piece (9) and fastening stud (8) threaded connection.
2. The anti-theft bolt with a locking mechanism as claimed in claim 1, wherein: the interior bottom surface of protective cover (4) is provided with control protective cover (4) level pivoted rotation axis (10), protective cover (4) rotate with first cylinder (2) through rotation axis (10) and be connected, the interior top surface of first mounting hole (5) is provided with first elasticity stop device (11), the upper surface in close contact with of the lower bottom surface of first elasticity stop device (11) and fastening stud (8).
3. The anti-theft bolt with a locking mechanism as claimed in claim 2, wherein: the first elastic limiting device (11) comprises a first spring (12) and a first limiting block (13), the top end of the first spring (12) is fixedly connected with the inner top surface of the first mounting hole (5), and the bottom end of the first spring (12) is fixedly connected with the upper surface of the first limiting block (13).
4. The anti-theft bolt with a locking mechanism as claimed in claim 1, wherein: the inner bottom surface of the second mounting hole (6) is fixedly provided with a plane bearing (14), the middle of the plane bearing (14) is provided with a through hole matched with the fastening stud (8), and the lower bottom surface of the rotating block (9) is fixedly connected with the upper surface of the plane bearing (14).
5. The anti-theft bolt with a locking mechanism as claimed in claim 3, wherein: the fastening stud (8) comprises a limiting part (15) and a locking part (16) integrally connected with the bottom end of the limiting part (15), the outer surface of the limiting part (15) is smooth, an external thread is arranged on the outer annular surface of the locking part (16), the upper surface of the limiting part (15) is in close contact with the lower bottom surface of the first limiting block (13), and the lower bottom surface of the locking part (16) is flush with the lower bottom surface of the second column body (3).
6. The anti-theft bolt with a locking mechanism as claimed in claim 5, wherein: the middle part of the outer ring surface of the limiting part (15) is provided with a plurality of grooves, second elastic limiting devices (17) are arranged in the grooves, and the middle part of the internal thread of the rotating block (9) is provided with a limiting groove (18) corresponding to the second elastic limiting devices (17).
7. The anti-theft bolt with a locking mechanism as claimed in claim 6, wherein: the second elastic limiting device (17) comprises a second spring (19) and a second limiting block (20), the right end face of the second spring (19) is fixedly connected with the inner bottom face of the groove of the limiting part (15), and the left end face of the second spring (19) is fixedly connected with the right side face of the second limiting block (20).
8. The anti-theft bolt with a locking mechanism as claimed in claim 5, wherein: the height of the limiting part (15) is the same as that of the rotating block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934176.4U CN217713281U (en) | 2022-04-21 | 2022-04-21 | Anti-theft bolt with locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934176.4U CN217713281U (en) | 2022-04-21 | 2022-04-21 | Anti-theft bolt with locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217713281U true CN217713281U (en) | 2022-11-01 |
Family
ID=83791481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220934176.4U Active CN217713281U (en) | 2022-04-21 | 2022-04-21 | Anti-theft bolt with locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217713281U (en) |
-
2022
- 2022-04-21 CN CN202220934176.4U patent/CN217713281U/en active Active
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