CN219242425U

CN219242425U - High-strength anti-theft screw

Info

Publication number: CN219242425U
Application number: CN202223562102.1U
Authority: CN
Inventors: 周凯佳
Original assignee: Jiaxing Mia Hardware Manufacturing Co ltd
Current assignee: Jiaxing Mia Hardware Manufacturing Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a high-strength anti-theft screw which comprises a screw body, wherein the screw body comprises a first lower cylinder, a second lower cylinder, a limiting annular groove, a lower blind hole, a magnet block, a limiting plate, an inner adjusting through hole, a rack, an outer through hole, a first upper cylinder, a limiting round tube, a limiting ring, an upper blind hole and a cross groove, the upper end of the screw body is provided with a coaxial first lower cylinder, the upper end face of the first lower cylinder is provided with a coaxial second lower cylinder, and the side wall of the first lower cylinder is provided with a coaxial limiting annular groove. The utility model has simple structure and reasonable design, and can ensure that the screw has high anti-theft property.

Description

High-strength anti-theft screw

[ field of technology ]

The utility model relates to the technical field of high-strength anti-theft screws, in particular to the technical field of high-strength anti-theft screws.

[ background Art ]

Screws or bolts are used as a common fastener, and serve to connect and fix two components to each other, so that the screw or the bolt is widely applied to various fields. The prior art screw is usually composed of a cylinder with threads on the circumference and a nut arranged at the end of the cylinder, and grooves with different shapes are also arranged on the nut. When the screw is used, the screw can be easily removed by means of a common screwdriver and other tools, so that expensive equipment, instruments and the like which are connected by the screw can be stolen or illegally damaged, and the anti-theft effect cannot be achieved.

In the prior art, although some anti-theft bolts exist, the anti-theft performance is insufficient, for example, application number 202122939924.6 discloses an anti-theft screw and a special screwdriver head thereof, and although the anti-theft screw adopts unusual screwing holes, the screwing holes are too regular and are easy to crack.

[ utility model ]

The utility model aims to solve the problems in the prior art and provides a high-strength anti-theft screw which can be provided with high anti-theft performance.

In order to achieve the above purpose, the utility model provides a high-strength anti-theft screw, which comprises a screw body, and comprises a first lower cylinder, a second lower cylinder, a limiting annular groove, a lower blind hole, a magnet block, a limiting plate, an inner adjusting through hole, a rack, an outer perforation, a first upper cylinder, a limiting round tube, a limiting ring, an upper blind hole and a cross groove, wherein the upper end of the screw body is provided with the first lower cylinder which is coaxial, the upper end surface of the first lower cylinder is provided with the second lower cylinder which is coaxial, the side wall is provided with the coaxial limiting annular groove, the upper end surface of the second lower cylinder is provided with the radially arranged straight lower blind hole, the bottom of the lower blind hole is provided with the magnet block, the lower blind hole is internally provided with the limiting plate which can be absorbed by the magnet block, the middle part of the limiting plate is provided with the vertically arranged straight inner adjusting through hole, the inner adjusting through hole wall of the inner adjusting through hole is provided with the vertically arranged straight rack, the wall of the lower blind hole is provided with the outer perforation which is matched with the inner adjusting through hole, the first upper cylinder is coaxially arranged above the second lower cylinder, the first upper end surface is provided with the coaxial limiting round tube, the limiting ring is sleeved outside the second lower cylinder, the limiting round tube is coaxially arranged at the bottom of the second lower cylinder, the limiting round tube, the inner hole is provided with the limiting ring, the limiting ring is stretched into the inner hole, the inner hole of the limiting round hole, and the first end surface is provided with the upper annular groove and with the corresponding to the upper annular groove, and the upper blind hole.

Preferably, the first lower cylinder, the first upper cylinder and the limiting circular tube are coplanar.

Preferably, the limiting plate can freely move along the first lower cylindrical axis in the lower blind hole, and the moving direction of the limiting plate and the setting direction of the rack are all the same.

Preferably, a sealing plug is arranged in the outer perforation.

Preferably, a sealing ring is clamped between the limiting circular tube and the first lower cylinder and between the limiting circular tube and the second lower cylinder.

Preferably, the sum of the heights of the magnet block and the limiting plate does not exceed the depth of the lower blind hole, the height of the limiting plate is greater than two thirds of the depth of the lower blind hole, the depth of the upper blind hole is less than two thirds of the height of the limiting plate, and the depth of the upper blind hole is greater than one third of the height of the limiting plate.

Preferably, the outer perforations penetrate through the front and rear ends of the first lower cylinder.

The utility model has the beneficial effects that: the utility model has simple structure and reasonable design, and can ensure that the screw has high anti-theft property; through the mode that sets up hidden activity limiting plate, the limiting plate rises and just can rotate with first lower cylinder, first cylinder, spacing pipe after, makes people be difficult to perceive spacing mode between first lower cylinder, the first cylinder of going up, the spacing pipe, utilizes the rack cooperation cross-section to be the regulation pole of gear-like and adjusts the lift of limiting plate, and this kind of regulation pole that can mesh with tiny rack also is difficult to independent processing just depending on the individual, and the theftproof performance is high.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic front view of the high strength anti-theft screw of the present utility model.

[ detailed description ] of the utility model

Referring to fig. 1, the high-strength anti-theft screw of the utility model comprises a screw body 1, which comprises a first lower cylinder 2, a second lower cylinder 21, a limit annular groove 211, a lower blind hole 22, a magnet block 23, a limit plate 24, an inner adjusting through hole 241, a rack 242, an outer through hole 25, a first upper cylinder 3, a limit round tube 31, a limit ring 311, an upper blind hole 32 and a cross groove 33, wherein the upper end of the screw body 1 is provided with a coaxial first lower cylinder 2, the upper end surface of the first lower cylinder 2 is provided with a coaxial second lower cylinder 21, the side wall is provided with a coaxial limit annular groove 211, the upper end surface of the second lower cylinder 21 is provided with a radial straight-shaped lower blind hole 22, the bottom of the lower blind hole 22 is provided with a magnet block 23, the lower blind hole 22 is internally provided with a limit plate 24 which can be absorbed by the magnet block 23, the limiting plate 24 middle part is equipped with the interior regulation through-hole 241 of vertical style of calligraphy of vertical setting, interior regulation through-hole 241 inner wall is equipped with the interior style of calligraphy rack 242 of vertical setting, lower blind hole 22 pore wall is equipped with outer perforation 25 that suits with interior regulation through-hole 241, the cylinder is equipped with coaxial first cylinder 3 on the lower cylinder 21 top under the second, the terminal surface is equipped with coaxial spacing pipe 31 under the first cylinder 3, spacing pipe 31 cover is in the cylinder 21 outside under the second, spacing pipe 31 hole bottom is equipped with spacing ring 311, spacing ring 311 stretches into in the spacing ring channel 211, the terminal surface middle part is equipped with the radial style of calligraphy of setting on the first cylinder 3, on blind hole 32 and lower blind hole 22, limiting plate 24 are suited, first cylinder 3 up end is equipped with cross groove 33.

Wherein the outer tube walls of the first lower cylinder 2, the first upper cylinder 3 and the limiting round tube 31 are coplanar.

The limiting plate 24 can freely move along the axis of the first lower cylinder 2 in the lower blind hole 22, and the moving direction of the limiting plate 24 is always the setting direction of the rack 242.

Wherein, a sealing plug 251 is disposed in the outer through hole 25.

Wherein, sealing rings are clamped between the limiting circular tube 31 and the first lower cylinder 2 and the second lower cylinder 21.

Wherein the sum of the heights of the magnet block 23 and the limiting plate 24 does not exceed the depth of the lower blind hole 22, the height of the limiting plate 24 is greater than two thirds of the depth of the lower blind hole 22, the depth of the upper blind hole 32 is less than two thirds of the height of the limiting plate 24, and the depth of the upper blind hole 32 is greater than one third of the height of the limiting plate 24.

Wherein the outer through holes 25 penetrate through the front and rear ends of the first lower cylinder 2.

The working process of the utility model comprises the following steps:

in the working process of the high-strength anti-theft screw, firstly, a gear-shaped adjusting rod with a gear-shaped section is taken, the adjusting rod is inserted into the outer through hole 25 to penetrate out from the front end and the rear end of the limiting round tube 31, at the moment, the adjusting rod passes through the inner adjusting through hole 241 and is meshed with the rack 242, then, the adjusting rod is rotated to enable the limiting plate 24 to ascend into the upper blind hole 32, at the moment, the space between the first lower cylinder 2, the first upper cylinder 3 and the limiting round tube 31 is limited, then, a cross groove 33 can be matched by a screwdriver, the mounting screw is rotated, after the mounting is completed, the adjusting rod is rotated to reset the limiting plate 24, after the limiting plate 24 is reset, the limiting relation between the first upper cylinder 3, the limiting round tube 31 and the first lower cylinder 2 is released, at the moment, the first upper cylinder 3 and the limiting round tube 31 are continuously rotated, and the screw cannot rotate, so that the anti-theft effect is achieved.

The utility model has simple structure and reasonable design, and can ensure that the screw has high anti-theft property; through the mode that sets up hidden activity limiting plate 24, after the limiting plate 24 risees cylinder 2, cylinder 3, spacing pipe 31 on will first, the screw just can rotate, makes people be difficult to perceive spacing mode between cylinder 2, cylinder 3, the spacing pipe 31 on first, utilizes rack 242 cooperation cross-section to be the regulation pole of gear-like and adjusts the lift of limiting plate 24, this kind of regulation pole that can mesh with little rack 242 only relies on the individual also to be difficult to independent processing, burglary-resisting property is high.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. High strength theftproof screw contains screw rod main part (1), its characterized in that: including first cylinder (2), second cylinder (21), spacing ring channel (211), lower blind hole (22), magnet piece (23), limiting plate (24), interior regulation through-hole (241), rack (242), outer perforation (25), first cylinder (3), spacing pipe (31), spacing ring (311), upper blind hole (32), cross groove (33), screw rod main part (1) upper end is equipped with coaxial first cylinder (2), first cylinder (2) up end is equipped with coaxial second cylinder (21) down, the lateral wall is equipped with coaxial spacing ring channel (211), second cylinder (21) up end is equipped with radial setting's first style of calligraphy down blind hole (22), lower blind hole (22) hole bottom is equipped with magnet piece (23), be equipped with in lower blind hole (22) can be by magnet piece (23) absorptive limiting plate (24), limiting plate (24) middle part is equipped with vertical setting's the style of calligraphy in-of calligraphy regulation through-hole (241), interior regulation through-hole (241) inner wall is equipped with vertical setting's first style of calligraphy rack (242), lower blind hole (22) pore wall is equipped with coaxial spacing ring channel (211) of cylinder (31) down in the same with the outer style of calligraphy of lining-hole (241), first cylinder (3) of being equipped with coaxial cylinder (3) down, spacing pipe (31) cover is in the second cylinder (21) outside down, and spacing pipe (31) hole bottom is equipped with spacing ring (311), and spacing ring (311) stretch into in spacing ring channel (211), and terminal surface middle part is equipped with radial setting's a word formula blind hole (32) down on first, goes up blind hole (32) and blind hole (22), limiting plate (24) and suits down, and first last cylinder (3) up end is equipped with cross groove (33).

2. The high strength anti-theft screw of claim 1, wherein: the outer tube walls of the first lower cylinder (2), the first upper cylinder (3) and the limiting round tube (31) are coplanar.

3. The high strength anti-theft screw of claim 1, wherein: the limiting plate (24) can freely move along the axis of the first lower cylinder (2) in the lower blind hole (22), and the moving direction of the limiting plate (24) is consistent with the setting direction of the rack (242).

4. The high strength anti-theft screw of claim 1, wherein: a sealing plug (251) is arranged in the outer perforation (25).

5. The high strength anti-theft screw of claim 1, wherein: and a sealing ring is clamped between the limiting circular tube (31) and the first lower cylinder (2) and between the limiting circular tube and the second lower cylinder (21).

6. The high strength anti-theft screw of claim 1, wherein: the sum of the heights of the magnet block (23) and the limiting plate (24) does not exceed the depth of the lower blind hole (22), the height of the limiting plate (24) is larger than two thirds of the depth of the lower blind hole (22), the depth of the upper blind hole (32) is smaller than two thirds of the height of the limiting plate (24), and the depth of the upper blind hole (32) is larger than one third of the height of the limiting plate (24).

7. The high strength anti-theft screw of claim 1, wherein: the outer through holes (25) penetrate through the front end and the rear end of the first lower cylinder (2).