CN2286489Y

CN2286489Y - Theft-proof lock insertion

Info

Publication number: CN2286489Y
Application number: CN 96206640
Authority: CN
Inventors: 杨茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-16
Filing date: 1996-03-16
Publication date: 1998-07-22
Anticipated expiration: 2006-03-16

Abstract

The utility model relates to a novel lock core of a theft-proof lock, which comprises a lock core, a lock sleeve, a limiting pin, a push column, a pressing spring, a choke plug and a bolt. The utility model is characterized in that equal prismatic limiting mechanisms are arranged on the concentric circumferential directions of the lock core and the lock sleeve; rows of guide holes which are mutually parallel are arranged on the longitudinal bus-bar directions which are corresponding to the equal prismatic limiting mechanisms; parts such as the limiting pin, the push column, the pressing spring, the choke plug, etc. are respectively placed in the guide holes to from a multi-safety theft-proof mechanism. A key is inserted into the utility model, the lock core is rotated to cause the limiting pin to be opened to cause the door lock to be opened through the bolt to achieve the theft-proof purpose. The utility model has the advantages of security, safety, reliability and convenient use. The utility model can be widely used for door locks of families, hotels and storehouses.

Description

A kind of anti-theft lock core of novelty

The utility model relates to a kind of safe and reliable especially safe-guard door lock device, especially can prevent to utilize the unlocking tool of omnipotent special use to open lock core door lock, that have many insurance burglar-proof mechanisms.

At present, a kind of anti-theft lock core of selling on the market, it is a kind of spacing burglar-proof mechanism of forming by lock core, lock tube and position-limit mechanism of cross, by four deep mixed concaveconvex shapes on the cross metal key, push lock core open, spacer pin on the lock tube diametric(al) in the pilot hole, push away post, make it on the tangential direction of circumference, to separate and reach the purpose of opening door lock.This safe-guard door lock can play safety, insurance, antitheft effect, still, in case use omnipotent special tool to open, can push spacer pin in the position-limit mechanism equally open, push away post, and door lock is opened, like this, it is perfectly safe still can not to accomplish in safety, on reliable, antitheft.

The purpose of this utility model provides a kind of anti-theft lock core of novelty, lock core in the common security door can be replaced by it, the use prismatic key of corresponding preparation is with it normally opened, can't open with omnipotent special-purpose unlocking tool, further improve the real safe and reliable performance of safe-guard door lock.

The purpose of this utility model is achieved in that in lock tube, a lock core is installed, lock core is arranged to an end the ledge structure that is used for limiting its axially-movable, the other end is provided with and clamps dead bolt with collar and limit the ring channel structures of its another axially-movable, lock core can cooperate rotation flexibly in lock tube, lock tube is arranged to and the corresponding supporting structure of lock core, radial section position at lock core and lock tube, be respectively arranged with craspedodrome stopper slots three equalizations, that be mutually 120 degree, and form a prismatic key therefrom; On lock core and the corresponding with it generatrix direction of lock tube, be respectively arranged with in a row, 5 pilot holes parallel to each other, mutually noninterfere, in each pilot hole, respectively successively device spacer pin arranged, push away post, stage clip, plug, one end of spacer pin is arranged to R shape spherical structure, to reduce the frictional force of key when opening, its other end is arranged to a band step and conical surface structure combining; An end that pushes away post is a plane structure, then is arranged to a step and the combined structure of the conical surface equally with the end that spacer pin is close to mutually, to prevent its tangential direction at rotation round, can not form the gap step; The effect of stage clip is to force to push away post and be close to spacer pin and make it all the time roof pressure on the seamed edge of equilateral prismatic key, plug is a little axle of cylindricality, form with pressing is fitted in the pilot hole of lock tube, and like this, complete many insurances position-limit mechanism is formed thus.Under normal circumstances, spacer pin in each pilot hole with push away post and all be in different positions, have only when inserting proprietary prismatic key, relying on the key the concavo-convex arc platform on three different directions, when promoting three rows all spacer pins in the pilot holes simultaneously and arriving the tangential direction of lock cores and lock tube rotation round, screw key, by the rotation of dead bolt, door lock just is opened.

The utility model has increased difficulty owing to be arranged to a position-limit mechanism equalization, that be mutually 120 degree in the imitated manufacturing of proprietary instrument, make anti-theft lock really play the effect of insurance.

The utility model is especially to spacer pin and push away the improvement of column end structure, thereby further improved the reliability of insurance.

As everyone knows, the opening of antitheft door lock core, must use each spacer pin to move on the rolling tangential direction of lock core after, could rotational lock core and open door lock, and utilize the omnipotent special-purpose unlocking tool also must be according to this reason.Because spacer pin, push away post with state that pilot hole cooperates under, all the time have certain clearance, and push away post in the general anti-theft lock core, its end that is in contact with one another and is close to of spacer pin, be the plane, when omnipotent special tool is opened, dial twist lock core (reinforcing all the time is rotation status), elimination pushes away the fit clearance in post and the pilot hole, make the pilot hole on lock core and the lock tube fitting face on the rotation round tangential direction, form a gap step because of displacement, omnipotent special-purpose unlocking tool utilizes this gap step exactly, repeatedly pulling back and forth, when making the end face that pushes away post all fall within on the step of gap (on the rotation round tangential direction of lock core and lock tube), the rotary locking cylinder door lock just is opened, Just because of this, with spacer pin, push away the end that post is close to mutually and change system into step conical surface end combining structure, the space scope of Xing Chenging is more than its fit clearance greatly therefrom, tangent to periphery position in lock core and lock tube rotation, though still can form the gap step, the gap step is then because of lock core, spacer pin is the step surface combining structure with pushing away post in the lock tube, can't it be stopped and do not open door lock at the rotation round tangent plane, play safety, insurance, antitheft effect.

Owing to adopt such scheme, further improved safe, the insurance of door lock, strengthened the antitheft reliability of door lock, similar safe-guard door lock as long as change lock core, can reach desirable effect equally.

Below in conjunction with drawings and Examples the utility model is further given explanation.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is the I-I sectional drawing of the utility model structure chart.

1. lock cores, 2. lock tubes, 3. plugs, 4. stage clips, 5. spacer pins among the figure

6. push away post 7. collars 8. dead bolts 9. pilot holes 10. end face rectangular channels 11. step conical surface end 12.R spheres 13. prismatic key

In Fig. 1, Fig. 2, lock core 1 sliding being loaded in the interior stepped hole of concentric with it lock tube 2, limited lock core 1 moving axially left, the dead bolt 8 that is used for stirring door lock mechanism is installed in the end face rectangular channel 10 of lock core 1, block and limited lock core and move axially to the right by the collar 7 at the cannelure place of lock core 1, lock core 1 can normally rotate in lock tube 2 flexibly; Radially impartial at lock core 1 and lock tube 2, be mutually the section parts of 120 degree, be provided with one and be prismatoidal key 13, and lock core 1 is provided with corresponding with it with vertical generatrix direction of lock tube 2, in a row, parallel to each other, the pilot hole 9 of mutually noninterfere, in pilot hole 9, spacer pin 5, push away post 6, stage clip 4,3 of plugs are fitted in the position, aperture of pilot hole 9, impel stage clip 4 to push away post 6 all the time, spacer pin 5 one radial loads and make the R sphere end 12 of spacer pin abut in the position, seamed edge boundary of prismatic key 13, the cylinder position that pushes away post 6 remains on the tangent to periphery position of lock core 1 and lock tube 2, control the mutual alignment of lock core 1 and lock core 2 and it can't be rotated, formed insurance more than, safe and reliable burglar-proof mechanism.

Operating principle of the present utility model is such, after inserting in the prismatic key 13 with proprietary prismatic key, under the effect of various concavo-convex arcuation platform on three seamed edges, pushed the R sphere end 12 of spacer pin 5 in the burglar-proof mechanism on the concentric diametric(al), spacer pin 5 moves along the axial line of pilot hole 9, promotion pushes away post 6 and compression press spring 4, even if spacer pin 5 and push away the rotation round tangent line position of the step conical surface end 11 of post 6 to lock core 1 and lock tube 2, at this moment, rotate the prismatic key, lock core 1 rotates, and drives dead bolt 8 and stirs unlocking mechanism, and door lock just is opened; When rightabout rotates the prismatic key, lock core 1 just recovers to get back to the home position, transfer to the prismatic key, lost the thrust of key to spacer pin 5, under the pressure effect of stage clip 4, make and push away post 6, spacer pin 5 is returned to the origin-location again, the rotation round position of lock core 1 with lock tube 2 blocked at the cylinder position that pushes away post 6, the door lock locking.Because spacing lock 5, push away the end that post 6 is close to mutually and be arranged to step conical surface end 11, two step conical surface end 11 places and pilot hole 9 formed spaces are obviously greater than spacer pin 5, push away the cylinder position and the pilot hole 9 formed gaps of post 6, though when lock core 1 rotation, the die joint place of the rotation round tangential direction pilot hole 9 of lock core 1 and lock tube 2, still can produce a gap step, but push away the end face of the step conical surface end 11 of post 6, promptly use omnipotent special-purpose unlocking tool to collude, promote spacer pin 5, pushing away post 6 slides at the axis direction of pilot hole 9, then again can't fall to being against because of lock core 1, on the gap step that produces at the die joint place of the pilot hole 9 of its tangent to periphery direction during lock tube 2 rotation, the conical surface cylinder that pushes away post 6 has still blocked the rotation of lock core 1 all the time, door lock can't be opened in the same old way, has reached the safety of door lock, reliably, insurance, antitheft purpose.

Claims

1. anti-theft lock core, on vertical bus of the radially cross position-limit mechanism of lock core and lock tube rotation round, corresponding with it position is provided with 5 pilot holes in a row and parallel to each other, spacer pin, push away post, stage clip, plug is packed into respectively in the pilot hole of lock core and lock tube successively, it is characterized in that: on the concentric circumferences direction of lock core and lock tube, be respectively arranged with three equalizations, be mutually the position-limit mechanisms of 120 degree, thereby form one the burglar-proof mechanism that insures more.

2. anti-theft lock core according to claim 1, it is characterized in that: on the concentric circumferences direction of lock core and lock tube, three equalizations of She Zhiing, that be mutually 120 degree respectively position-limit mechanism is provided with pilot hole in a row and parallel to each other, mutually noninterfere at its vertical generatrix direction.

3. anti-theft lock core according to claim 2 is characterized in that: the post that pushes away that is installed in the position-limit mechanism pilot hole is that an end is a plane structure, and the other end is the combining structure of the step conical surface.

4. anti-theft lock core according to claim 2 is characterized in that: the spacer pin in the position-limit mechanism is that an end is the R sphere, and the other end then is the combined mechanism of step conical surface end equally.

5. anti-theft lock core according to claim 2 is characterized in that: the spacer pin in the position-limit mechanism is close to each other with the step conical surface end combining structure that pushes away post and is installed in the pilot hole.