CN2314033Y

CN2314033Y - Core of lock

Info

Publication number: CN2314033Y
Application number: CN 97243317
Authority: CN
Inventors: 于鸣燕
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-26
Filing date: 1997-12-26
Publication date: 1999-04-14
Anticipated expiration: 2007-12-26

Abstract

The utility model discloses an anti-theft lock core of a cylinder lock, which is characterized in that the utility model comprises a lock core shell, a first lock core, a secondary lock core, and a positioning cover. The first lock core and the secondary lock core are arranged in a step-shaped through hole of the lock core shell, two rows of staggered and cross cylinder holes are arranged on the inner wall of the lock core shell, a resetting mechanism is arranged between the first lock core and the secondary lock core, a positioning round platform is arranged at the bottom of the first lock core, and a positioning cover is arranged at the rear part of the lock core shell. The utility model has the advantages that two-stage or multi-stage lock cores are arranged, the lock cores are staggered and cross, the anti-theft performance is enhanced, the structure is reasonable, and the performance is safe. The utility model is widely suitable for various cylinder locks.

Description

The anti-theft billiards lock pin

The utility model relates to a kind of lock core lock of used for spring lock, particularly a kind of anti-theft billiards lock pin with multistage lock core composition.

Lock is to be positioned in the annular distance of opening and closing place such as door, chest, drawer or iron chains, and the ironware that the people can not at will be opened generally will could be opened with key, and it is prevailing anti-theft tool.Along with the raising of science and technology, lock miscellaneous arises at the historic moment, and mechanical lock, electronic lock etc. are arranged, and its theftproof is more and more stronger.Yet, antitheft and theft originally is a pair of born twin children, their strick precaution with all improved constantly by precautionary technology and means, cylinder lock for example, very big variation has taken place although its structure, form are compared than before, but, still be easy to lock is opened to the thief that franchise is unblanked to commit theft.Because this cylinder lock has only a lock core,, have no obstacle ground and rapidly lock is opened as long as the people who unblanks has a master key even other instrument just lock one can be disclosed on earth.And this cylinder lock really the ordinary people the most frequently used close an instrument, therefore, unblanking to commit theft is the most common larceny case at present.

The purpose of this utility model provides a kind of anti-theft billiards lock pin that stops the stealer of unblanking to be unblanked by the dislocation cross method between lock core.

The purpose of this utility model is achieved in that it comprises lock core shell, one-level lock core, secondary lock core and location lid; Be provided with one in the lock core shell and place the one-level lock core, coaxial through-hole before and after the step of secondary lock core, be provided with in the bottom of one-level lock core and limit the positioning round table that its forward direction skids off, after being fixed with restriction secondary lock core, the rear end of lock core shell covers to the location that skids off, on one-level lock core and secondary lock core, be respectively equipped with the pellet shot from a slingshot hole that the pellet shot from a slingshot of unblanking is put in a discharging, on the through-hole wall of lock core shell, be provided with two dischargings and put the pellet shot from a slingshot hole of marble spring and locking pellet shot from a slingshot, first row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole on the one-level lock core, second row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole on one-level lock core and the secondary lock core, and two row's pellet shot from a slingshot hole circumferential misalignment are crossed as angle.

Basic principle of the present utility model is to change the lock core structure that cylinder of spring lock is single in the past, the key one of unblanking is inserted into the position, and lock core is designed to one-level lock core and secondary lock core even multistage lock core, and the keyhole mutual dislocation on the lock cores at different levels is intersected.Like this, must at first start first order lock core when unblanking, and rotate to keyhole on the lock core of the second level and align, further insert key then,, can finally open lock after making all keyhole alignment if multistage lock core should progressively carry out precession.The person can not open lock quickly even hold the master key.If there is not master key, only desire to open this lock difficulty more very with general purpose tool.Therefore, this lockset has great theftproof.

In order to solve the orientation problem between one-level lock core and secondary lock core and lock core shell, the utility model becomes step with the via design of lock core shell, the back round platform by its bottom of one-level lock core insertion limits it and skids off through hole forward, and that the location lid of secondary lock core by the lock core shell rear end face carries out is spacing to prevent that it from skidding off through hole backward, and such two lock cores can only rotate in the through hole of lock core shell and can not move forward and backward.

The keyhole mutual dislocation that maximum characteristics of the present utility model are exactly two lock cores is intersected, therefore, for two keyholes making one-level lock core and secondary lock core after the alignment of unblanking, can be returned to the position that dislocation intersects, the end face upper edge that contacts at one-level lock core and secondary lock core circumferentially is respectively equipped with the cannelure that mutual closure can form toroidal cavity, is provided with the back-moving spring that the pellet shot from a slingshot hole dislocation that makes on one-level lock core and the secondary lock core is crossed as angle in toroidal cavity.For one-level lock core and secondary lock core can be locked with lock core shell, the fan-shaped angle of cannelure should be greater than the circumferential angle in two row pellet shot from a slingshot holes on the lock core shell through-hole wall.And consider the custom that people move, the circumferential angle in two row pellet shot from a slingshot holes is preferably 90 ° on the lock core shell through-hole wall.When the one-level lock core is done relative rotation with the secondary lock core, back-moving spring between two lock cores always is in stressed non-equilibrium state, so diminish back-moving spring for a long time, also can influence resetting of one-level lock core simultaneously, therefore, respectively be provided with a projection that is used for compression reseting spring and location at the cannelure opposite endpoint place that is positioned on one-level lock core and the secondary lock core contact jaw face.Promptly be provided with a projection that extend in another routine cannelure at an end place of a side cannelure, and be provided with a projection that extend in the offside cannelure at the opposite end point place of opposite side cannelure, back-moving spring not only can evenly compress spring but also can locate between two projectioies.For the cylinder lock of some form, lock core must be connected with interlinked mechanism, and for this reason, the utility model is provided with the projection that can connect interlinked mechanism in the bottom of secondary lock core, and this projection is stretched out in the corresponding with it through hole from the lid of location.Key drives the rotation of secondary lock core, and the secondary lock core drives the interlinked mechanism rotation simultaneously.

The utility model compared with prior art, its remarkable advantage is: 1, multistage lock core is set, pellet shot from a slingshot hole mutual dislocation between the lock cores at different levels, thus increased theftproof greatly; 2, rational in infrastructure, design is ingenious, performance is safe and reliable.The utility model can be widely used in all kinds of cylinder locks.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the utility model structural representation.

Fig. 2, Fig. 3 are respectively one-level lock core and secondary lock core contact jaw face structural representation.

Embodiment: referring to Fig. 1, the anti-theft billiards lock pin that the utility model is made, it comprises, and lock core shell 1, one-level lock core 2, secondary lock core 3, location covers 4, the pellet shot from a slingshot 6 of unblanking, marble spring 7, lock pellet shot from a slingshot 8 and back-moving spring 9.Be provided with the step through hole in the lock core shell 1, diameter little preceding, diameter big after.The diameter of one-level lock core 2 is identical with lock core shell 1 front end through-hole diameter, and places in the front end through hole, and the diameter of secondary lock core 3 is identical with lock core shell 1 rear end through hole, and places in the through hole of rear end.Be provided with diameter and the identical positioning round table 5 in aperture, lock core shell 1 rear end in the bottom of one-level lock core, its thickness is 2mm.The end face upper edge that is in contact with one another at one-level lock core 2 and secondary lock core 3 circumferentially respectively is provided with a shape cannelure of the same size, respectively be provided with a projection 11 at two relative end points of cannelure, form toroidal cavity after two cannelure closures, the fan-shaped angle of cannelure is 100 °, referring to Fig. 2, Fig. 3, in toroidal cavity, between two projectioies, be provided with back-moving spring 9.On one-level lock core 2 and secondary lock core 3, have the unblank pellet shot from a slingshot hole of pellet shot from a slingshot 6 of two and three placements, being provided with circumferential angle on the through-hole wall of lock core shell becomes 90 ° two rows to place marble spring 7 successively and the pellet shot from a slingshot hole of the pellet shot from a slingshot 8 of unblanking, first row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole on the one-level lock core 2, and second row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole of one-level lock core 2 and secondary lock core 3.The length of pellet shot from a slingshot 6 and locking pellet shot from a slingshot 8 of respectively unblanking is according to the high bottom surface needs of key and different.Also be provided with the projection 10 that connects interlinked mechanism in the bottom of secondary lock core 3, the rear end of lock core shell 1 is fixed with the location lid 4 of restriction secondary lock core 3, and projection is covered in the through hole corresponding on 4 from the location and stretched out.

Claims

1, a kind of anti-theft billiards lock pin is characterized in that it comprises lock core shell [1], one-level lock core [2], secondary lock core [3] and location lid [4]; Be provided with a step front and back coaxial through-hole of placing one-level lock core [2], secondary lock core [3] in the lock core shell [1], be provided with in the bottom of one-level lock core [2] and limit its positioning round table that skids off forward [5], after the rear end of lock core shell [1] is fixed with restriction secondary lock core to the location lid [4] that skids off; On one-level lock core [1] and secondary lock core [3], be respectively equipped with the pellet shot from a slingshot hole that the pellet shot from a slingshot of unblanking [6] is put in two dischargings, on the through-hole wall of lock core shell [1], be provided with the pellet shot from a slingshot hole that marble spring [7] and locking pellet shot from a slingshot [8] are put in two dischargings, first row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole on the one-level lock core [2], second row's pellet shot from a slingshot hole is corresponding to the pellet shot from a slingshot hole on one-level lock core [2] and the secondary lock core [3], and two row's pellet shot from a slingshot hole circumferential misalignment become angle.

2, anti-theft billiards lock pin according to claim 1, it is characterized in that circumferentially being respectively equipped with the cannelure that is closed into toroidal cavity mutually, in toroidal cavity, be provided with the back-moving spring [9] that the pellet shot from a slingshot hole dislocation that makes on one-level lock core [2] and the secondary lock core [3] intersects to form angle in the end face upper edge that contacts of one-level lock core [2] and secondary lock core [3].

3, anti-theft billiards lock pin according to claim 1 is characterized in that the row of two on lock core shell [1] inner via hole inwall pellet shot from a slingshot hole circumferential misalignment becomes 90 °.

4, anti-theft billiards lock pin according to claim 2 is characterized in that contacting between one-level lock core [2] and the secondary lock core [3] the fan angle of cannelure on the end face greater than the circumferential angle of two row's pellets shot from a slingshot on lock core shell [1] through hole.

5, according to claim 1,2 described anti-theft billiards lock pins, it is characterized in that being provided with the projection [10] that connects interlinked mechanism in the bottom of secondary lock core [3], this projection is stretched out in the corresponding with it through hole from location lid [4].

6,, it is characterized in that respectively being provided with a projection [11] that is used for compression reseting spring [9] and location in the cannelure opposite endpoint that is positioned on one-level lock core and the secondary lock core contact surface according to claim 2,4 described anti-theft billiards lock pins.