CN2127409Y

CN2127409Y - Separate type 3-protection lock core

Info

Publication number: CN2127409Y
Application number: CN 92220037
Authority: CN
Inventors: 黄明浩
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-31
Filing date: 1992-07-31
Publication date: 1993-02-24
Anticipated expiration: 2002-07-31

Abstract

The utility model discloses a separate type 3-protection lock core, having a lock sleeve, a straight cylinder type lock core rotary body is arranged according to the spring position, the lock strip of the lock core is separated from the rotary body, the lock core rotary body can make axial sliding, a clutch slot which can insert in the lock strip is arranged on the bottom of the rotary body. The utility model has the advantage of reliable separating motion, good functions of preventing drilling, forcing, and dismounting, and can be used for matching the door lock with single tongue, double tongues, and three tongues.

Description

Separate type 3-protection lock core

The utility model relates to a kind of disengaging type lock core.

Existing no matter single tongue, two tongue or Three-bolt door lock, its lock core all adopts traditional interconnection system lock core, promptly stirs dead bolt flexible bolt and lock core rotary body and links together, as long as lock core rotates, must open.Though this class lock core has its characteristics, the mode that lock core is rotated is more, such as boring mashed lock core or making a mess of the just rotatable lock core of pellet shot from a slingshot, opens door.Therefore, this direct-type lock core possesses a drawback, the safety deficiency.

The purpose of this utility model provides the lock core that is in transmission connection for disengaging type between a kind of bolt and lock core, to improve security reliability.

To achieve these goals, technical solution of the present utility model is, it has lock tube, be equipped with straight barrel type lock core rotary body by the bullet position in the lock tube, the bolt of lock core and lock core rotary body are separated, lock core rotation physical efficiency is in axial sliding, and has the clutch slot that can plug together with bolt on lock core rotary body bottom.When the lock core rotary body is pushed into, the rotary body bottom is gone up clutch slot and is closed up with bolt and engage, this moment key, bolt ability is rotated synchronously with the lock core rotary body, also just can open lock.During same angle, the lock core rotary body can be withdrawed to original position when key is in its propelling rotary body, lock core rotary body and bolt keep released state, and this moment is rotational lock core rotary body arbitrarily again, all door can not be opened.

Above-mentioned lock core rotary body bottom be provided with its diameter greater than the lock core of lock core rotary body diameter at the bottom of the garden dish because the barrier effect of lock tube, the lock core rotary body can not outwards be pulled out from lockhole; Above-mentioned lock tube bottom is provided with the axially displaced lock tube clamp of restriction lock core rotary body, and the garden dish is by behind the lock tube clamp axial limiting at the bottom of the lock core, and the lock core rotary body can only rotate, and can not move axially; Have the breach that can join with lock tube clamp lower edge cunning on dish periphery in garden at the bottom of the lock core, breach is superimposed with line and the clutch slot center line of dish garden, garden, the end heart, and breach was located on the extended line of microscler clutch slot center line on promptly coiled in garden, the end.When just aiming at the lock tube clamp with the breach on garden, the end dish of the synchronous turn of lock core rotary body, (also have only at this moment) at this moment and could promote the lock core rotary body and do axially-movable, advance rotary body, clutch slot also just engages with the bolt inserting on the rotary body, rotate rotary body again, can drive bolt and stir dead bolt, lock be locked extremely thereby lock opened maybe; Equally, have only also that rotary body is gone to an angle is garden, end dish when going up breach and being in harmony good relative with the bolt clamp, rotary body could be retreated to the origin-location, make the separated attitude of rotary body and bolt.

Axial central cross-section intersects marble hole along clutch slot center line on axial central cross-section of rotary body and the lock core rotary body along rotary body on the above-mentioned lock core rotary body.Key has only when forwarding the lock core rotary body to a certain special angle, be in clutch slot center line extended line on garden, end dish breach could aim at the lock tube clamp, advance rotary body, rotary body just can engage this moment and synchronous rotation with bolt; Dish breach in garden, the end is aimed at and rotary body could be retreated to the origin-location with the lock tube clamp again, and rotary body is given up the throne with after bolt separates, and also the lock core rotary body must be rotated a certain angle again, just can make on the rotary body and play bit alignment on the marble hole and lock tube, can withdraw from key.Can further improve the security performance of lock like this.

The bolt of above-mentioned lock core is a cross, is located on the door lock base plate, and bottom-locking plate is provided with the draw-in groove that stops the bolt transverse arm, is provided with spring base and bolt return spring on lock backboard inwall.Draw-in groove and return spring are set, can make the bolt return accurate, improve lock core rotary body and bolt joint reliability.

The utlity model has following advantage:

Between bolt and lock core for disengaging type is in transmission connection, and clutch action is reliable.

The insurance, the security performance excellence.Under the lock closed condition, bolt all the time with the separated attitude of lock core, even bore mashed lock core, lock core is combined with bolt, so have anti-drilling, pick-proof, prevent unloading functions.Again owing to have only key that lock core is gone to a certain special angle, could advance the lock core rotary body to engage bolt and stir dead bolt, after the lock core rotary body is given up the throne, the lock core rotary body also must rotate to special angle can extract key out, and mouth 8 is punctual with 7 pairs of lock tube clamps like this, just can return lock core and revolve body body 2 to original position, make rotary body 2 and the separated attitude of bolt, after the lock core rotary body is given up the throne, also lock core rotary body 2 30 ℃ must be turned left, key could be extracted out.

Claims

1, a kind of disengaging type lock core, have lock tube, be loaded on the interior straight barrel type lock core rotary body of lock tube, can stir the flexible bolt of dead bolt and be loaded on marble hole interior pellet shot from a slingshot, pellet shot from a slingshot spring, it is characterized in that described bolt and lock core rotary body are separated, described lock core rotation physical efficiency is in axial sliding, and has the clutch slot that can plug together with bolt on the described lock core rotary body bottom.

2, disengaging type lock core according to claim 1, it is characterized in that described lock core rotary body bottom be provided with its diameter greater than the lock core of lock core rotary body diameter at the bottom of the garden dish, described lock tube bottom is provided with the axially displaced lock tube clamp of restriction lock core rotary body, have the breach that can join with lock tube clamp lower edge cunning at the bottom of the described lock core on the garden dish periphery, garden, end dish is gone up breach on the extended line of microscler clutch slot center line.

3, disengaging type lock core as claimed in claim 1 or 2 is characterized in that marble hole on the described lock core rotary body intersects along the axial central cross-section of rotary body along clutch slot center line on axial central cross-section of rotary body and the rotary body.

4, as disengaging type lock core as described in the claim 3, its special sheet is that described bolt is the cross bolt, is located on the door lock base plate, and bottom-locking plate is provided with the draw-in groove that stops the bolt transverse arm, is provided with spring base and bolt return spring on door lock backboard inwall.