CN106032818A

CN106032818A - Antitheft screw

Info

Publication number: CN106032818A
Application number: CN201510122706.XA
Authority: CN
Inventors: 牛国玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-20
Filing date: 2015-03-20
Publication date: 2016-10-19

Abstract

An antitheft screw comprises two parts: an upper hexagonal member and a lower thread member; the hexagonal member and the thread member are fixedly connected; the thread member is provided with a spring hole filled with a spring; the upper portion of the spring hole is a multi-row hole with a multi-row cross section; the hole pitch of the multi-row hole is bigger than the diameter of the spring hole; the spring hole and the multi-row hole are coaxial; the upper portion of the hexagonal member is provided with a lock hole, and a lock is arranged in the lock hole; the lock hole is connected with one multi-row hole same with that of the thread member; the length of lock hole and the multi-row hole is bigger than that of a lock cylinder; the lock cylinder, the multi-row hole of the hexagonal member and the multi-row hole of the thread member are coaxial; a multi-row block is matched with the multi-row hole in shape, and moves up and down in the multi-row hole; the lock housing is fixedly connected with the hexagonal member through a fixed pin. The multi-row block structure is hard to broken in application, can move up and down, and can be applied to short screws of [phi]14 and 12; the antitheft screw is safer and more reliable in usage, thus enlarging application scope.

Description

Anti-theft screw

Technical field

The present invention is the improvement to anti-theft screw structure.

Prior art

Existing a kind of anti-theft screw, can prevent from using any extracting tool to dismantle, effectively serve anti-theft function；It can be applicable on tire antitheft, it is possible to that applies on the equipment such as oil field, various pump class, transformator is antitheft.Its structure is, lock is embedded in the top of screw rod, and the top of screw rod is lock construction, and bottom is helicitic texture.Described lock construction is made up of existing lock cylinder and dead bolt；The lower section of lock core is a cross-drilled hole, arranges a dead bolt in cross-drilled hole, and dead bolt has groove；The post of stirring arranged bottom lock core is stuck in the groove on dead bolt；One circle groove is set on the external diameter of screw rod top；Arranging a circle groove on hexagonal overcoat upper inner diameter, be provided with opening jump ring in groove, hexagonal overcoat is connected by opening jump ring with screw rod；Having a lockhole on hexagonal sleeve side wall, lockhole connects with cross-drilled hole, lateral displacement in dead bolt through hole after connection.

The anti-theft screw of this structure, its shortcoming is, owing to lock core is positioned at the top of screw rod, connects outside hexagonal overcoat, actually lock core and have two-layer to wrap up outside screw rod；And dead bolt is transverse shifting；If this structure is made the screw less than Φ 14, then the screw less than Φ 14 of this structure cannot produce at all.Dead bolt cannot move because locational space relation is narrow and small；If this structure is applied on small size screw, the most undersized lock core structure, the most almost cannot install even if producing, the most also can be easy to fracture, essentially without playing due anti-theft function.Owing to the bolt of this structure is open keyhole on hexagonal sleeve side wall, middle hexagonal overcoat is used easily to rupture.

Summary of the invention

It is an object of the invention to, overcome the shortcoming that above-mentioned prior art exists, it is provided that a kind of anti-theft screw less than Φ 14.

A kind of anti-theft screw, it is characterised in that be made up of two parts；Top is hexagonal part, and bottom is screw element；Hexagonal part is fixing with screw element to be connected；

Screw element top arranges spring eye, and hole is divided into many ribs hole built with spring, the top of spring eye, and its cross section is many prismatics；The pitch-row in many ribs hole is more than the diameter of spring eye；Spring eye and many ribs hole coaxial line；

Hexagonal part top is provided with lockhole, is provided with lock in lockhole；More than one rib hole through with lockhole, identical with many ribs hole of screw element；The length in lockhole and many ribs hole is more than the length of lock core；Lock core and many ribs hole of hexagonal part, many ribs hole coaxial line of screw element；Many ribs block matches with many ribs hole shape, and many ribs block moves up and down in many ribs hole；

Lock shell connects hexagonal part by steady pin is fixing.

Operation principle of the present invention is, when needs dismounting anti-theft screw, insert a key into lock core hole, rotate lock core, by the rotation of lock core, promote many ribs block to bottom offset, many ribs block enters in many ribs hole of screw element, now, is connected as a single entity with hexagonal part by screw element, use universal dismounting tool to rotate hexagonal part, get final product dismantling screw.

When needing antitheft, back being rotated by key, make to move on many ribs block to reset by spring, many ribs block departs from screw element, makes hexagonal part separate with screw element；Now, even if using any extracting tool on hexagonal part, also cannot be dismantled by anti-theft screw, because hexagonal part is now the most originally in rotation, and screw element is motionless.

The present invention not only can prevent from using any extracting tool to dismantle, and effectively serves anti-theft function, and structure more advantages of simple.Many ribs block structured advantage is to be not susceptible in the application fracture, and owing to being to move up and down, can apply on the short and small screws such as Φ 14, Φ 12, use more safe and reliable, expand range；Especially applying on the tire of car, be hardly damaged, anti-theft effect becomes apparent from；And with low cost, easily popularize, applied range；Can be applicable on tire antitheft, it is possible to that applies on the camp equipments such as oil field, various pump class, transformator is antitheft.

Accompanying drawing explanation

Accompanying drawing 1 is appearance assumption diagram of the present invention.

Accompanying drawing 2 is the A-A sectional view of Fig. 1.

Accompanying drawing 3 is the B-B sectional view of Fig. 2.

Accompanying drawing 4 is the C-C sectional view of Fig. 2.

Accompanying drawing 5 is the D-D sectional view of Fig. 2.

Accompanying drawing 6 is unlocking condition structural representation of the present invention.

Accompanying drawing 7 is the top view of Fig. 6.

Accompanying drawing 8 is locking state structural representation of the present invention.

Accompanying drawing 9 is the top view of Fig. 8.

Accompanying drawing 10 is the second structural representation of the present invention.

Accompanying drawing 11 is Key structure schematic diagram of the present invention.

1 hexagonal part, the hole of rib more than 11,12 lockholes,

2 screw elements, the hole of rib more than 21,22 spring eyes,

3 springs,

4 opening jump rings,

The block of rib more than 5,

6 locks, 61 lock cores, 62 lateral pins, 63 skewed slots, 64 close blocks, 65 springs, 66 movable blocks, 67 pellets, 68 lock shells, 69 registration holes,

7 steady pins,

8 keys, 81 para-position mouths.

Detailed description of the invention

Embodiment 1, see accompanying drawing 1～accompanying drawing 10.

A kind of anti-theft screw, it is characterised in that be made up of two parts；Top is hexagonal part 1, and bottom is screw element 2；Hexagonal part bottom is convex, and screw element top is spill, and junction is provided with jump-ring slot, and hexagonal part is connected by opening jump ring 4 is fixing with screw element；Screw element top arranges spring eye 22, and hole is divided into many ribs hole 21 built with spring 3, the top of spring eye, and its cross section is many prismatics；The pitch-row in many ribs hole is more than the diameter of spring eye；Spring eye and many ribs hole coaxial line；

Hexagonal part top is provided with lockhole 12, is provided with lock 6 in lockhole；More than one rib hole 11 through with lockhole, identical with many ribs hole 21 of screw element；The length in lockhole 12 and many ribs hole 11 is more than the length of lock core；Lock core 61 and many ribs hole 11 of hexagonal part, many ribs hole 22 coaxial line of screw element；Many ribs block 5 matches with many ribs hole shape, and many ribs block moves up and down in many ribs hole；Described many ribs hole, its cross sectional shape is square or rectangular or triangle；The present embodiment uses cross sectional shape to be square.

Lock shell 68 connects hexagonal part by steady pin 7 is fixing；

The structure of described lock 6 is made up of with lock shell 68 lock cylinder；It is provided with a skewed slot 63 on lock core 61 outer wall, in lock shell 68, fixes a lateral pin 62；Lateral pin end is stretched out and is positioned at skewed slot, and lateral pin is slidably connected with skewed slot.While lock core rotates, because lateral pin 62 is motionless, skewed slot can only be made to slide along lateral pin；Lateral pin can play spacing effect.The height that the degree of depth in many ribs hole of described screw element is fast less than many ribs, so operation are easy for controlling.

Lock core inner cross type arranges four pellets 67；Each pellet connects a spring 65 by movable block 66 respectively；Each spring withstands on a closing block 64 respectively；Closing block is fixing with lock shell 68 to be connected.

Plug face is provided with registration holes 69；It is also equipped with para-position mouth 81 on corresponding key 8.Can mutually para-position during use.

Embodiment 2, see accompanying drawing 11.

A kind of anti-theft screw, is made up of two parts；Top is hexagonal part 1, and bottom is screw element 2；Hexagonal part bottom is spill, and screw element top is convex, and junction is provided with jump-ring slot；Hexagonal part is connected by opening jump ring 4 is fixing with screw element.

Many ribs block 5 cross sectional shape is rectangle, and many ribs hole shape is matched,

Other structures are with embodiment 1.

Claims

1. an anti-theft screw, it is characterised in that be made up of two parts；Top is hexagonal part, and bottom is screw element；Hexagonal part is fixing with screw element to be connected；

Lock shell connects hexagonal part by steady pin is fixing.

2. according to the anti-theft screw described in claim 1, it is characterised in that the structure of described lock is made up of with lock shell lock cylinder；It is provided with a skewed slot on outer wall of lock core, in lock shell, fixes a lateral pin；Lateral pin end is stretched out and is positioned at skewed slot, and lateral pin is slidably connected with skewed slot；The height that the degree of depth in many ribs hole of described screw element is fast less than many ribs.

3., according to the anti-theft screw described in claim 1 or 2, it is characterised in that described many ribs hole, its cross sectional shape is square or rectangular or triangle.

4. according to the anti-theft screw described in claim 3, it is characterised in that described hexagonal part is connected by opening jump ring is fixing with screw element, has two kinds of structures；

One be hexagonal part bottom be convex, screw element top is spill, and junction is provided with jump-ring slot；

Two be hexagonal part bottom be spill, screw element top is convex, and junction is provided with jump-ring slot.

5. according to the anti-theft screw described in claim 4, it is characterised in that lock core inner cross type arranges four pellets；Each pellet connects a spring by movable block respectively；Each spring withstands on a closing block respectively；Closing block is fixing with lock shell to be connected.

6. according to the anti-theft screw described in claim 5, it is characterised in that plug face is provided with registration holes；Corresponding it is also equipped with para-position mouth on the key.