CN219994127U

CN219994127U - Antitheft screw

Info

Publication number: CN219994127U
Application number: CN202321512357.9U
Authority: CN
Inventors: 陈德通; 周学余
Original assignee: Wenzhou Datong Metal Products Co ltd
Current assignee: Wenzhou Datong Metal Products Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-11-10
Anticipated expiration: 2033-06-14

Abstract

The utility model relates to the technical field of screws, in particular to an anti-theft screw, which comprises a limit seat and a first screw rod connected to the bottom end of the limit seat, wherein a groove is formed in the top end of the limit seat, an inserted rod is movably inserted in the middle of the groove and positioned on the limit seat, a push block is arranged in the position, extending to the first screw rod, of the bottom end of the inserted rod, and a limit mechanism is arranged on the outer wall of the push block; the inside of spacing seat has been seted up smooth chamber, and the inside sliding connection of smooth chamber has the slide bar, and the top of slide bar is provided with the magnetic path near the grafting end, and the outside cover of gag lever post is equipped with the second spring, and the recess bottom is connected to the second spring bottom, and the inside top of recess inlays and is equipped with the lid of looks adaptation, and the lid adsorbs mutually with the magnetic path top. The utility model has obvious anti-theft effect, flexible disassembly and assembly and convenient recycling.

Description

Antitheft screw

Technical Field

The utility model relates to the technical field of screws, in particular to an antitheft screw.

Background

The anti-theft screw is also called as an anti-disassembly screw, is a fastener which is produced to prevent a fixing facility which is placed in an outdoor public place for a long time from being stolen, and the screw of the type can be taken out by using a special tool, thereby playing an anti-theft role.

The utility model discloses an antitheft screw, which comprises a screw rod, a limiting block and a pressing block, wherein the screw rod and the limiting block are screwed into a fastener to be fastened by a force application after being fixed by a screwdriver by a worker, and then the pressing block is continued to be forced to be twisted off, so that the antitheft limiting block is left, thus the disassembly difficulty of the antitheft screw is greatly improved, and the antitheft effect of the antitheft screw is improved; the effect of the applicability of the anti-theft screw is improved.

However, the anti-theft screw is poor in generality, the anti-theft effect is achieved through separation of the nut and the limiting block, when a worker needs to disassemble the anti-theft screw for maintenance, only violent disassembly can be used, and the anti-theft screw is poor in disassembly flexibility and not suitable for recycling.

Disclosure of Invention

The utility model aims to solve the problems in the background technology and provides an antitheft screw.

The technical scheme of the utility model is as follows: the anti-theft screw comprises a limiting seat and a first screw rod connected to the bottom end of the limiting seat, wherein a groove is formed in the top end of the limiting seat, an inserted rod is movably inserted into the middle of the groove and positioned on the limiting seat, a pressing block is arranged at the top end of the inserted rod, a pushing block is arranged in the position, extending to the first screw rod, of the bottom end of the inserted rod, and a limiting mechanism is arranged on the outer wall of the pushing block;

the inside of spacing seat has been seted up smooth chamber, smooth chamber top is linked together with the recess, the inside sliding connection of smooth chamber has the slide bar, the one end of slide bar extends to the recess inside and peg graft with the lateral wall of pressing the piece, the top of slide bar is provided with the magnetic path near the grafting end, the bottom of recess has the gag lever post along vertical direction sliding connection, gag lever post top and pressing the butt of piece bottom are connected, the outside cover of gag lever post is equipped with the second spring, the recess bottom is connected to the second spring bottom, the bottom of gag lever post extends to the inside of smooth chamber and peg graft with the other end of slide bar, the inside top of recess is inlayed and is equipped with the lid of looks adaptation, the lid adsorbs with the magnetic path top.

Preferably, the limiting mechanism comprises a third spring arranged in the cavity around the inner wall of the first screw, the other end of the third spring is provided with a push plate, one side wall of the push plate is in butt joint with the push block, and the other side wall of the push plate is provided with a stabilizer bar which is movably inserted with the side wall of the first screw.

Preferably, a plurality of groups of sockets are uniformly formed on the periphery of the side wall of the first screw rod, and the stabilizer bar is connected with the sockets in a sliding manner.

Preferably, the sliding cavity, the sliding rod and the magnetic block are all provided with four groups, and the four groups of sliding cavities are distributed in the limiting seat in an annular array.

Preferably, a cross-shaped groove is formed above the groove and on the limiting seat, and an extension block matched with the cross-shaped groove is arranged at the edge of the cover body.

Preferably, the bottom end of the limiting rod is wedge-shaped, and a limiting groove matched with the limiting rod is formed in the sliding rod.

Preferably, the side wall of the sliding cavity is provided with a first spring, and the other end of the first spring is connected with the side wall of the sliding rod.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: according to the utility model, the concealment of the pressing block can be improved through the arrangement of the limiting seat, the groove, the first screw and the cover body, and the pressing block can be taken out only by adsorbing the cover body by using professional strong magnetic equipment, so that the pressing block is disassembled, and the anti-theft performance is improved; the arrangement of the first spring, the sliding rod, the limiting groove, the limiting rod and the second spring is convenient for limiting the pressing block, and meanwhile, the limiting mechanism is convenient to start by pressing the pressing block, the inserting rod and the pushing block, so that the stability of connection between the screw and the installation position is improved, the anti-theft effect is further improved, and the screw is prevented from being taken out easily; and the screw has higher disassembly flexibility and is convenient for recycling.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the limiting seat according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the first screw of the present utility model;

FIG. 4 is a schematic diagram of a limiting mechanism according to the present utility model;

fig. 5 is a front view of the internal structure of the present utility model.

Reference numerals: 1. a limit seat; 101. a groove; 102. a sliding cavity; 103. a first spring; 104. a slide bar; 105. a limit groove; 106. a magnetic block; 107. a limit rod; 108. a second spring; 2. a first screw; 201. a third spring; 202. a push plate; 203. a stabilizer bar; 204. a socket; 3. pressing the blocks; 301. a rod; 302. a pushing block; 4. and a cover body.

Detailed Description

Example 1

As shown in fig. 1, fig. 4 and fig. 5, the antitheft screw provided by the utility model comprises a limit seat 1 and a first screw rod 2 connected to the bottom end of the limit seat 1, wherein a groove 101 is formed in the top end of the limit seat 1, an inserting rod 301 is movably inserted into the middle of the groove 101 and positioned on the limit seat 1, a pressing block 3 is arranged at the top end of the inserting rod 301, a pushing block 302 is arranged in the first screw rod 2 extending from the bottom end of the inserting rod 301, and a limit mechanism is arranged on the outer wall of the pushing block 302;

as shown in fig. 2 to 5, a sliding cavity 102 is formed in the limit seat 1, the top end of the sliding cavity 102 is connected with a groove 101, a sliding rod 104 is slidably connected in the sliding cavity 102, a first spring 103 is arranged on the side wall of the sliding cavity 102, the other end of the first spring 103 is connected with the side wall of the sliding rod 104, one end of the sliding rod 104 extends into the groove 101 and is spliced with the side wall of the pressing block 3, a slot matched with the sliding rod 104 is formed in the side wall of the pressing block 3, a magnetic block 106 is arranged at the top end of the sliding rod 104 and close to the splicing end, four groups of sliding cavities 102, the sliding rod 104 and the magnetic block 106 are all arranged in four groups, the four groups of sliding cavities 102 are distributed in the limit seat 1 in an annular array, a limit rod 107 is slidably connected along the vertical direction at the bottom end of the groove 101, the top end of the limit rod 107 is in butt joint with the bottom end of the pressing block 3, a second spring 108 is sleeved outside the limit rod 107, the bottom end of the second spring 108 is connected with the bottom end of the groove 101, the bottom end of the limit rod 107 extends into the inside the sliding cavity 102 and is spliced with the other end of the pressing block 104, a cover 4 matched with the top end 4 is arranged above the groove 101, the top end 4 and the magnetic block 106 is positioned on the same horizontal plane as the top end surface of the limit seat 1;

further, a cross-shaped groove is formed above the groove 101 and on the limiting seat 1, and an extension block matched with the cross-shaped groove is arranged at the edge of the cover body 4; the first screw rod 2 is conveniently rotatably installed to a proper position by driving the limit seat 1 to rotate through the cross screwdriver;

further, the bottom end of the limiting rod 107 is wedge-shaped, and the sliding rod 104 is provided with a limiting groove 105 matched with the limiting rod 107, so that the sliding rod 104 is conveniently driven to slide when the limiting rod 107 moves downwards.

In this embodiment, the cross screwdriver is used to rotate the limiting seat 1 to drive the first screw rod 2 to rotate so as to be installed at a proper installation position, then the pressing block 3 is pressed downwards to drive the inserting rod 301 to move downwards along the limiting seat 1 until the pressing block 3 compresses the corresponding limiting rod 107 and the second spring 108 downwards, so that the bottom end of the limiting rod 107 is inserted into the limiting groove 105 on the sliding rod 104, the sliding rod 104 slides along the sliding cavity 102 towards the direction close to the pressing block 3, the first spring 103 is stretched, the inserting end of the sliding rod 104 is inserted into the side wall of the pressing block 3 to limit the pressing block 3, meanwhile, the pressing block 3 drives the inserting rod 301 to press the pushing block 302 to start the limiting mechanism to lift the stability of the connection between the first screw rod 2 and the installation position, and the anti-theft effect is improved; then the cover body 4 is pressed into the groove 101 to be abutted with the magnetic blocks 106 for adsorption, the cover body 4 can be taken out through special strong magnetic equipment, the concealment of the pressing block 3 is improved, after the cover body 4 is taken out, each group of magnetic blocks 106 are pushed towards the direction away from the pressing block 3, under the elastic restoring action of the first spring 103, the sliding rod 104 slides along the sliding cavity 102 towards the direction away from the pressing block 3 until the limiting groove 105 is separated from the limiting rod 107, the pressing block 3 is ejected upwards under the elastic restoring action of the second spring 108, and the cover body is detached, so that the cover body is convenient and quick to assemble and disassemble.

Example two

As shown in fig. 1, 3, 4 and 5, compared with the first embodiment, the limit mechanism of the antitheft screw provided by the utility model comprises a third spring 201 installed in a cavity installed around the inner wall of the first screw 2, a push plate 202 is installed at the other end of the third spring 201, one side wall of the push plate 202 is abutted to a push block 302, a stabilizer bar 203 is installed at the other side wall of the push plate 202, and the stabilizer bar 203 is movably inserted with the side wall of the first screw 2; a plurality of groups of sockets 204 are uniformly formed around the side wall of the first screw rod 2, and the stabilizer bar 203 is connected with the sockets 204 in a sliding manner.

In this embodiment, when the push block 302 is driven to move downwards by the push block 3 and the insert rod 301, the insert rod 301 drives the push block 302 to be inserted between the four groups of push plates 202 while the push block 3 is inserted with the corresponding slide rod 104 to prevent theft, and the four groups of push plates 202 are pressed outwards, so that the corresponding third springs 201 are compressed, and the corresponding stabilizer 203 moves outwards along the insertion opening 204 until being inserted into the installation place, so that the device is connected with the installation place more stably, further has an anti-theft effect, cannot be taken out easily, and when the device needs to be removed, the push block 302 is far away from each group of push plates 202, and the stabilizer 203 is driven to retract into the first screw 2 under the elastic restoring effect of the third springs 201.

Working principle: the concealment of the pressing block 3 can be improved through the arrangement of the limiting seat 1, the groove 101, the first screw 2 and the cover body 4, and the pressing block 3 can be taken out only by adsorbing the cover body 4 by using professional strong magnetic equipment, so that the anti-theft performance is improved; the first spring 103, the sliding rod 104, the limiting groove 105, the limiting rod 107 and the second spring 108 are arranged to facilitate limiting the pressing block 3, and meanwhile, the pressing block 3, the inserting rod 301 and the pushing block 302 are used to facilitate starting of the limiting mechanism, so that the stability of connection between the screw and the installation position is improved, the anti-theft effect is further improved, and the pressing block is prevented from being taken out easily; and the screw has higher disassembly flexibility and is convenient for recycling.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The anti-theft screw is characterized by comprising a limiting seat (1) and a first screw rod (2) connected to the bottom end of the limiting seat (1), wherein a groove (101) is formed in the top end of the limiting seat (1), an inserting rod (301) is movably inserted into the middle of the groove (101) and positioned on the limiting seat (1), a pressing block (3) is arranged at the top end of the inserting rod (301), a pushing block (302) is arranged in the first screw rod (2) extending from the bottom end of the inserting rod (301), and a limiting mechanism is arranged on the outer wall of the pushing block (302);

the inside of spacing seat (1) has been seted up smooth chamber (102), smooth chamber (102) top and recess (101) are linked together, the inside sliding connection of smooth chamber (102) has slide bar (104), the one end of slide bar (104) extends to inside recess (101) and peg graft with the lateral wall of pressing piece (3), the top of slide bar (104) is provided with magnetic path (106) and is close to the grafting end, the bottom of recess (101) has gag lever post (107) along vertical direction sliding connection, gag lever post (107) top and pressing piece (3) bottom butt are connected, the outside cover of gag lever post (107) is equipped with second spring (108), recess (101) bottom is connected to second spring (108) bottom, the bottom of gag lever post (107) extends to the inside of smooth chamber (102) and peg graft with the other end of slide bar (104), the inside top of recess (101) is inlayed and is equipped with lid (4) of looks adaptation, lid (4) are adsorbed with magnetic path (106) top.

2. The antitheft screw according to claim 1, wherein the limiting mechanism comprises a third spring (201) arranged in the cavity around the inner wall of the first screw rod (2), a push plate (202) is arranged at the other end of the third spring (201), one side wall of the push plate (202) is abutted against the push block (302), a stabilizer bar (203) is arranged on the other side wall of the push plate (202), and the stabilizer bar (203) is movably inserted into the side wall of the first screw rod (2).

3. The antitheft screw according to claim 2, wherein a plurality of groups of sockets (204) are uniformly formed around the side wall of the first screw (2), and the stabilizer bar (203) is slidably connected with the sockets (204).

4. The antitheft screw according to claim 1, wherein four groups of sliding cavities (102), sliding rods (104) and magnetic blocks (106) are arranged, and the four groups of sliding cavities (102) are distributed in the limiting seat (1) in an annular array.

5. The antitheft screw according to claim 1, wherein a cross-shaped groove is formed above the groove (101) and on the limiting seat (1), and an extension block matched with the cross-shaped groove is arranged at the edge of the cover body (4).

6. The antitheft screw according to claim 1, wherein the bottom end of the limit rod (107) is wedge-shaped, and the slide rod (104) is provided with a limit groove (105) adapted to the limit rod (107).

7. An antitheft screw according to claim 1, characterized in that the side wall of the slide cavity (102) is provided with a first spring (103), the other end of the first spring (103) being connected with the side wall of the slide rod (104).