CN2393959Y - Lock with externally pressed side bars and key - Google Patents

Abstract

The utility model relates to a cylinder lock and a key, wherein, the cylinder lock is provided with an improved locking device which controls a lock core to rotate and is mainly composed of cylinders and locking side columns. Each cylinder is provided with a circle of concave grooves which are wholly coincided or dislocated through the key to control the locking side columns to move, and therefore, the lock core can be controlled to rotate or tightly clamp. A lock hole is arranged on the edge of the lock core and the mounted position of a shifting fork is not on the lock hole. The positive surface of the key piece of the key which is matched with the lock hole of the cylinder lock is provided with locking screws and guide slots and the reverse surface is an arc shape. The cylinder lock has the advantages of good safety and theft protection performances.

Description

A kind of side column external-compression type cylinder lock and key

The utility model belongs to a kind of lockset, particularly relates to a kind of cylinder lock and key.

Cylinder lock is a kind of common lockset, common cylinder lock locks lock core by pellet shot from a slingshot and rotates, each pellet shot from a slingshot group in the lock is by two compositions, when unblanking, the contact surface of two pellets shot from a slingshot overlaps with the contact surface of lock core and lock body, and lock core can rotate relative to lock body, during locking, the contact surface of two pellets shot from a slingshot does not overlap with the contact surface of lock core and lock body, because the barrier effect of pellet shot from a slingshot, lock core cannot rotate.This problem that is latched in is, open with the unlocking tool cover of non-matching key easily, as master key, Unlocking gun etc., because two pellets shot from a slingshot that these unlocking tools can both make each pellet shot from a slingshot group are one by one in the dislocation of the contact surface place of lock core and lock body, all overlap with the contact surface of lock core and lock body until their contact surface.In addition, the lockhole on this cylinder lock is positioned at lock core middle part through the lock core center line, the installation site of shift fork on lockhole, with unlocking tool by lockhole under the strike of external force, the lock core shift fork can be washed out, fast lock is opened with special tool then.With the two sides of supporting its spoon of the key sheet of this cylinder lock gathering sill is arranged all, tartar is positioned at a side of spoon sheet.Because of there being above-mentioned deficiency, the security performance of this cylinder lock and theftproof performance are all bad.

The purpose of this utility model provides a kind of new cylinder lock and key with matching, this tapered end has the locking device that the control lock core after the improvement rotates, can prevent that the lock core shift fork from being washed out by unlocking tool, its security performance and theftproof performance all lock than existing pellet shot from a slingshot.

The technical scheme of the utility model cylinder lock comprises lock body, lock core, pellet shot from a slingshot, lock body circular hole inboard has ∨ type groove, have the side column groove on the lock core, the side column groove is inboard to communicate with the side in pellet shot from a slingshot hole, and with pellet shot from a slingshot hole approximate vertical, the side column groove outside can be corresponding with the ∨ type groove of lock body circular hole inboard, one circle groove is all arranged on each pellet shot from a slingshot, perhaps one enclose above groove, comprising the true groove of a circle, all the other are false groove, and the degree of depth of false groove is less than the height of the ∨ type groove of lock body circular hole inboard, be provided with locking side column in the side column groove, the inboard of locking side column is a square, can match with the groove on the pellet shot from a slingshot, and the outside of locking side column is the ∧ type, can match with the ∨ type groove of lock body circular hole inboard, locking side column is provided with step, is provided with the side column return spring between side column step and side column groove inboard, and the edge that the lockhole on the lock core is positioned at lock core is semiclosed shape, and the hole flank of tooth is vertical with the pellet shot from a slingshot group, and the installation site of lock core upper shift fork is not on lockhole.

With the key that above-mentioned antitheft sylinder matches, its tartar, gathering sill all are positioned at the front of key piece, and the reverse side of key piece is a circular arc type.

When above-mentioned cylinder lock is unblanked, after key inserts lockhole, tartar on the key forces the shift in position of each pellet shot from a slingshot, at this moment, the true groove on the pellet shot from a slingshot all overlaps, and is on the straight line, rotational lock core, locking side column is subjected to lock body compressing, its ∧ type outside skid off in the ∨ type groove of lock body circular hole inboard and the lock core of withdrawing in, its square inboard is stretched in the true groove on the pellet shot from a slingshot simultaneously; During locking, as long as lock core is rotated in a certain position, side column groove on the lock core is corresponding with the ∨ type groove of lock body circular hole inboard, the ∧ type of the locking side column outside is stretched under the return spring effect in the ∨ type groove of lock body circular hole inboard, withdraws in the true groove of its square inboard from the pellet shot from a slingshot, extracts key out, pellet shot from a slingshot rearranges, true groove dislocation on the pellet shot from a slingshot, pellet shot from a slingshot stops that locking side column can not move, lock core is stuck.False groove on the pellet shot from a slingshot is in order to confuse illegal lock set people, and the square inboard of locking side column might be stretched in the false groove on the pellet shot from a slingshot during lock set, and lock still can not be opened.

After key inserted lockhole, the circular arc type of key piece reverse side became the part of lock core and matches with the circular hole cambered surface of lock body, can freely rotate in the lock body circular hole with lock core.

The utility model is because the locking device that has adopted locking side column to rotate as the control lock core, with the unlocking tool of non-matching key each pellet shot from a slingshot located simultaneously, and the true groove on it all overlapped, so lock can not be opened.Because lockhole is positioned at the edge of lock core, the installation site of lock core upper shift fork uses unlocking tool shift fork to be washed out via lockhole not on lockhole again.Therefore, this cylinder lock has good safety and theftproof.

Further specify the technical solution of the utility model below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the utility model cylinder lock and key.

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

Accompanying drawing discloses an embodiment of the present utility model, cylinder lock comprises lock body 1, lock core 5, pellet shot from a slingshot 3, pellet shot from a slingshot return spring 6, spring die 7, lock body 1 circular hole inboard has ∨ type groove 9, have side column groove 15 on the lock core 5, side column groove 15 inboards communicate with the side in pellet shot from a slingshot hole 16, and with pellet shot from a slingshot hole 16 approximate vertical, side column groove 15 outsides can be corresponding with the ∨ type groove 9 of lock body 1 circular hole inboard, each pellet shot from a slingshot 3 all has a true groove 4 of circle and a false groove 17 on diverse location, the degree of depth of true groove 4 equals the height h of ∨ type groove 9, the degree of depth of false groove 17 is less than the height h of ∨ type groove 9, be provided with locking side column 14 in the side column groove 15, the inboard 8 of locking side column 14 is a square, can with the groove 4 on the pellet shot from a slingshot 3,17 match, the outside of locking side column 14 is the ∧ type, can match with the ∨ type groove 9 of lock body 1 circular hole inboard, the two ends of locking side column 14 are provided with step 13, between the two ends of the step 13 of locking side column 14 and lock core side column groove 15 inboards, be provided with return spring 10, the edge that lockhole 18 on the lock core 5 is positioned at lock core 5 is semiclosed shape, its hole flank of tooth is vertical with pellet shot from a slingshot group 3, shift fork 11 is contained in the center of lock core 5 tail ends, and this position is not on lockhole 18.

The key 12 that matches with above-mentioned cylinder lock, its tartar 2, gathering sill 19 all are positioned at the front of key piece, and the reverse side of key piece is a circular arc type.

Lock among the figure is in opening, and the tartar 2 on the key 12 is arranged each pellet shot from a slingshot 3 in order, and the true groove 4 on the pellet shot from a slingshot 3 all overlaps, and when rotational lock core, locking side column 14 can be withdrawn in the lock core.

Claims (3)

1, a kind of side column external-compression type antitheft sylinder, comprise lock body (1), lock core (5), pellet shot from a slingshot (3), it is characterized in that lock body (1) circular hole inboard has ∨ type groove (9), have side column groove (15) on the lock core (5), side column groove (15) is inboard to communicate with the side of pellet shot from a slingshot hole (16), and with pellet shot from a slingshot hole (16) approximate vertical, side column groove (15) outside can be corresponding with the ∨ type groove (9) of lock body (1) circular hole inboard, one circle groove (4) is all arranged on each pellet shot from a slingshot (3), be provided with locking side column (14) in the side column groove (15), the inboard (8) of locking side column (14) is a square, can match with the groove (4) on the pellet shot from a slingshot (3), the outside of locking side column (14) is the ∧ type, can match with the ∨ type groove (9) of lock body (1) circular hole inboard, locking side column (14) is provided with step (13), between the step (13) of side column (14) and side column groove (15) inboard, be provided with side column return spring (10), the edge that lockhole (18) on the lock core (5) is positioned at lock core (5) is semiclosed shape, and the hole flank of tooth is vertical with pellet shot from a slingshot group (3), and the installation site of lock core (5) upper shift fork (11) is not on lockhole (18).

2, side column external-compression type antitheft sylinder according to claim 1, it is characterized in that all having on each pellet shot from a slingshot (3) circle with upper groove, comprising a circle true groove (4), all the other are false groove (17), and the degree of depth of false groove (17) is less than the height h of the ∨ type groove (9) of lock body (1) circular hole inboard.

3, a kind of key () that matches with claim 1,2 described antitheft sylinders is characterized in that the tartar (2) on the key (12), the front that gathering sill (19) all is positioned at key piece, and the reverse side of key piece is a circular arc type.

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