CN2918655Y

CN2918655Y - Theft-proof double-layer lock pin

Info

Publication number: CN2918655Y
Application number: CN 200620075111
Authority: CN
Inventors: 陈义平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-14
Filing date: 2006-07-14
Publication date: 2007-07-04
Anticipated expiration: 2016-07-14

Abstract

The utility model relates to an anti-theft double layer lock core, which is characterized in that a lock core house is a cylinder with two end openings, the lock core comprises a first, a second and a third knot lock core, the three knot lock cores are arranged in the lock core house in the axial. Three lines of the spring holes are arranged in the first lock core, two lines of the spring holes are arranged in the second lock core, a key hole is arranged on the related first and second knot lock core in the axial. The lock cannot be opened by any explosive force, reaming force, outer resorted force and universal keys, the anti-theft performance is excellent. The utility model solves the shortcoming of a line, a cross and a YUAN shaped easily opening single lock core. The lock core is more applicable to the middle and high ranked products such as the variable cars, trucks, security tanks, and anti-theft doors.

Description

Antitheft double-layer lock core

Technical field

The utility model relates to a kind of theftproof lock.

Background technology

In order to improve the theftproof performance of lock, people have designed a kind of multiple-rotor anti-theft lock, characteristics are that active rotating shaft and driven spindle are installed in lock core, driving gear is equipped with in the active rotating shaft end, driven gear, driving gear and driven gear engagement are equipped with in the driven spindle end, have pellet shot from a slingshot slide-and-guide hole on active rotating shaft, lock core body, driven spindle, in the pellet shot from a slingshot slide-and-guide hole that three are connected one group of cylinder-shaped marble is housed, the bottom is by spring top clamping.And for example Chinese patent ZL03227554.4 provides a kind of many rows cylinder lock set of multistage anti-theft lock, comprise locking closure, lock body, lock core, pellet shot from a slingshot, springs etc. have key groove hole on the lock core, its shape can be in-line, cross, square, circular, herringbone, flower shape, to being arranged with two row pellet shot from a slingshot holes at least, every row have been arranged a pellet shot from a slingshot hole at least along groove, in establish pellet shot from a slingshot, spring, characteristics are: screw rod or screw are installed on the locking closure, lock body has through hole, and screw rod or screw pass the lock body through hole and connect one or more lock bodies, fix at tail end.The anti-theft feature of above-mentioned theftproof lock is still not good enough.

Summary of the invention

The purpose of this utility model provides a kind of antitheft double-layer lock core with double insurance effect.

Concrete structural design scheme is as follows:

Antitheft double-layer lock core comprises lock core shell and lock core, and lock core is provided with the pellet shot from a slingshot hole, is provided with pellet shot from a slingshot and spring in the pellet shot from a slingshot hole.Described lock core shell 7 is the cylindrical tube shape of both ends open, and lock core comprises that first segment lock core 11, the second joint lock core 9 and the 3rd joint lock core 5, three save the lock core axially-aligned and be located in the lock core shell 7;

First segment lock core 11 is provided with three row pellet shot from a slingshot holes vertically, and the interior three row pellet shot from a slingshot holes of same radial cross-section present the Y shape arranges, and the one end middle part is provided with groove;

The second joint lock core 9 is provided with two row pellet shot from a slingshot holes vertically, and the interior three row pellet shot from a slingshot holes of same radial cross-section present the V shape arranges, and one end and first segment lock core 11 groove fit are provided with projection, and there is a projection at the middle part, other end; Its external surface is provided with a L shaped groove, is provided with dowel hole with the corresponding lock core shell of L shaped groove, is provided with alignment pin in the dowel hole;

The 3rd joint lock core 5 one end faces and second save lock core 9 projections and cooperate and be provided with groove, and the middle part is arranged with tapered end spring 4, and the other end is connecting tapered end bar 1, and the end has tapered end pin-and-hole 3; Its external surface is provided with radial slot, and corresponding lock core shell 7 with radial slot is provided with dowel hole, is provided with alignment pin in the dowel hole;

The second joint lock core and the 3rd joint lock core cooperation place are arranged with return spring 8;

First segment lock core, the second joint lock core shaft are provided with keyhole to correspondence.

Useful technique effect of the present utility model is: lock core is made up of first, second and third joint lock core, and locking first segment lock core is integrated lock core.Behind the second joint lock core return, separate, even lock core makes the rotation lock of also not opening with tapered end.After key is transferred to, use instruments such as any violence, hinge power, external force, master key also can't open, have good theftproof performance.Solved the shortcoming that single lock cores such as a word, cross, first type are easily opened.This lock core more is applicable to a kind of lockset of medium and high-grade goods such as all kinds of automobiles, car, safety cabinet, security door.

Description of drawings

Fig. 1 is the utility model structural representation,

Fig. 2 is a first segment lock core sectional view,

Fig. 3 is the second joint lock core sectional view,

Fig. 4 is the outside drawing of Fig. 3,

Fig. 5 is the 3rd joint lock core outside drawing.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

Antitheft double-layer lock core comprises lock core shell 7 and lock core, has the pellet shot from a slingshot hole on the lock core, and pellet shot from a slingshot and spring are housed in the pellet shot from a slingshot hole.Lock core shell 7 is the cylindrical tube shape of both ends open, and lock core comprises that first segment lock core 11, the second joint lock core 9 and the 3rd joint lock core 5, three joint lock core axially-aligned are positioned at lock core shell 7, see Fig. 1.

First segment lock core 11 has three row pellet shot from a slingshot holes 10 vertically, and the interior three row pellet shot from a slingshot holes of same radial cross-section present the Y shape arranges, and the one end middle part is fluted, sees Fig. 2.

The second joint lock core 9 has two row pellet shot from a slingshot holes vertically, and the interior two row pellet shot from a slingshot holes of same radial cross-section present the V shape arranges, and one end and first segment lock core 11 groove fit have projection, and there is a projection at the middle part, other end; Its external surface has a L shaped groove, and has dowel hole on the corresponding lock core shell of L shaped groove, and alignment pin is housed in the dowel hole, sees Fig. 3.

The 3rd joint lock core 5 one end faces and second save lock core 9 projections and cooperate and have groove, and the middle part is set with tapered end spring 4, and the other end is connecting tapered end locking plate 2 and tapered end bar 1, and the end has tapered end pin-and-hole 3; Its external surface has radial slot, has dowel hole 6 on the corresponding lock core shell 7 with radial slot, and alignment pin is housed in the dowel hole;

The second joint lock core and the 3rd joint lock core cooperation place are set with return spring 8;

First segment lock core, the second joint lock core shaft have keyhole 12 to correspondence.

When unblanking, first segment lock core 11 promotes the second joint lock core 9 and cooperates with the 3rd joint lock core 5 to advancing slip, three lock pin coaxial axle rotations can be able to be opened lock.After lock locked, after the second joint lock core rebounds, cooperates with first segment lock core 11 returns, locking first segment lock core is integrated first and second joint lock core, separates with tapered end, does not also open even lock core rotates.

Claims

1, antitheft double-layer lock core, comprise lock core shell and lock core, lock core is provided with the pellet shot from a slingshot hole, be provided with pellet shot from a slingshot and spring in the pellet shot from a slingshot hole, it is characterized in that: described lock core shell 7 is the cylindrical tube shape of both ends open, lock core comprises that first segment lock core 11, the second joint lock core 9 and the 3rd joint lock core 5, three save the lock core axially-aligned and be located in the lock core shell 7;