CN200989100Y - Improved door mortise lock structure - Google Patents

Abstract

The utility model discloses an improved lock head structure of core insert door lock comprising a lock body, both ends inside the lock body are equipped with idle motion lock cores having the same structure, which are characterized in that a poke joint is fixed at the end of the rotary bushing of each of lock core. Comparing with the prior lock heads, as the utility model adopts the idle motion lock cores, the function of the utility model to prevent the unlocking by technique or by destruction is further improved.

Description

A kind of improved mortise lock structure

Technical field

The utility model belongs to mechanical lockset, is specifically related to a kind of lock head structure of built-in type mortise door lock.

Background technology

The tapered end of existing built-in type mortise door lock wherein has a kind of twin-lock cored structure, can be from two different directions with key respectively with lock-switch.Two lock cores all are to adopt identical structure, are provided with a shifting block between two lock core ends, and shifting block is realized and the interlock of dead bolt thereby each lock core can drive by an arrangement of clutch.The deficiency of this tapered end is that the lock core that is adopted is not high aspect safety, can not effectively prevent skilled unlocking and destructive picking lock.

Preventing skilled unlocking and destructive picking lock aspect of performance, the lock core that some theftproofs better can dally has appearred at present, this lock core is provided with a turning set between lock core and lock body, be characterized in, can unblank when unblanking with matched key, and when using non-matching key to unblank, can only make lock core relatively rotate cover idle running, this lock core can make external force can't act on lock body and sword iron, thereby has solved powerful unblanking and a destructive difficult problem of unblanking preferably.At present, this class lock core does not also have to find to be applied on the tapered end of built-in type mortise door lock.

Summary of the invention

The purpose of this utility model is at above-mentioned situation, and a kind of improved mortise lock structure that comprises idle-run lock pin is provided.

The utility model purpose is achieved in that the mortise lock structure comprises lock body, and the two in the lock body is provided with the idle-run lock pin of same structure, and the end of each lock core turning set is fixed with shifting block; Idle-run lock pin is made up of internal cylinder and cover turning set thereon, be provided with the locking side column mechanism that V-shaped groove pellet shot from a slingshot and locking side column are formed in the internal cylinder, also be fastened with sheath on the internal cylinder, position corresponding with locking side column on the sheath has slotted hole, the length of locking side column is roughly the distance from the groove external surface of V-shaped groove pellet shot from a slingshot to internal cylinder upper jacket external surface, between internal cylinder and lock body, be provided with a turning set, have the perforation pin-and-hole on the turning set jacket wall, be placed with pearl in the activity in the pin-and-hole, in the length of the pearl thickness that is substantially equal to the turning set jacket wall add the degree of depth of groove on the V-shaped groove pellet shot from a slingshot, on the lock body inwall, have locating hole with the corresponding position of the pin-and-hole of turning set, be placed with flat pearl and spring in the locating hole, the end of turning set has breach and can cooperate with the shifting block of interior dress arrangement of clutch, adopt the axial limiting parts to link into an integrated entity between internal cylinder and the turning set, from turning set, deviate to prevent lock core.

The length that is positioned at the locking side column on the internal cylinder is to determine like this, and under the lock closed condition (matched key is extracted out in internal cylinder, and locking side column is outwards ejected by the V-shaped groove pellet shot from a slingshot), the lateral surface of locking side column is concordant with the external surface of inner key cylinder; The length of middle pearl is to determine like this, under the lock opening (after matched key inserts internal cylinder, locking side column cooperates fully with the V-shaped groove pellet shot from a slingshot and contracts in internal cylinder), the outer face of pearl was concordant with the external surface of turning set during the length of pearl just made during the length of locking side column added.

Although the turning set on the idle-run lock pin engages with shifting block, but can only make lock core relatively rotate cover idle running when unblanking, can not unblank, have only the use matched key owing to the use non-matching key, turning set and lock core are rotated together, drive shifting block and rotate the switch of realizing lock.

The improved mortise lock structure of the utility model is compared with existing tapered end owing to adopt idle-run lock pin, make its prevent skilled unlocking and and the performance of destructive picking lock be further enhanced.

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

Description of drawings

Fig. 1 is a sectional view of the present utility model.

Fig. 2 is an A-A sectional view among Fig. 1.

The specific embodiment

The improved mortise lock structure of the utility model is seen Fig. 1, Fig. 2, one lock body 1 is arranged, two in the lock body 1 is provided with the idle-run lock pin of same structure, the end of each lock core turning set 3 all is fixed with shifting block 2, idle-run lock pin is made up of internal cylinder 8 and cover turning set 3 thereon, be provided with the pellet shot from a slingshot 9 and the spring 12 of band V-shaped groove 11 in the internal cylinder 8, the locking side column 7 that cooperates with this pellet shot from a slingshot 9, V-shaped groove pellet shot from a slingshot 9 and locking side column 7 are formed locking side column mechanism, also be fastened with sheath 10 on the internal cylinder 8, position corresponding with locking side column 7 on the sheath 10 has the perforation slotted hole, between internal cylinder 8 and lock body 1, be provided with a turning set 3, have the perforation pin-and-hole on turning set 3 jacket walls, be placed with pearl 6 in the activity in the pin-and-hole, the length of middle pearl 6 is greater than the thickness of turning set 3 jacket walls, on lock body 1 inwall, have locating hole with the corresponding position of the pin-and-hole of turning set 3, be placed with flat pearl 5 and spring 4 in the locating hole, adopt axial limiting parts card to link into an integrated entity between internal cylinder 8 and the turning set 3, the limiting component card passes turning set 3 and matches with groove on the internal cylinder 8, and limiting component also can adopt other forms such as pin; The length that is positioned at the locking side column 7 on the internal cylinder 8 is to determine like this, and under the lock closed condition (matched key is extracted out in internal cylinder 8, and locking side column 7 is outwards ejected by V-shaped groove pellet shot from a slingshot 9), the lateral surface of locking side column 7 is concordant with the external surface of internal cylinder 8; The length of middle pearl 6 is to determine like this, under the lock opening (after matched key inserts internal cylinder 8, locking side column 7 cooperates fully with V-shaped groove pellet shot from a slingshot 9 and contracts in internal cylinder 8), the outer face of pearl 6 was concordant with the external surface of turning set 3 during the length of pearl 6 just made during the length of locking side column 7 added.Among Fig. 2, internal cylinder 8 is the inserting key kit not, and being in can idling conditions.

Claims (1)

1, a kind of improved mortise lock structure comprises lock body, and the two in the lock body is provided with the idle-run lock pin of same structure, and it is characterized in that: the end of each lock core turning set is fixed with shifting block; Idle-run lock pin is made up of internal cylinder and cover turning set thereon, be provided with the locking side column mechanism that V-shaped groove pellet shot from a slingshot and locking side column are formed in the internal cylinder, also be fastened with sheath on the internal cylinder, position corresponding with locking side column on the sheath has slotted hole, the length of locking side column is roughly the distance from the groove external surface of V-shaped groove pellet shot from a slingshot to internal cylinder upper jacket external surface, between internal cylinder and lock body, be provided with a turning set, have the perforation pin-and-hole on the turning set jacket wall, be placed with pearl in the activity in the pin-and-hole, in the length of the pearl thickness that is substantially equal to the turning set jacket wall add the degree of depth of groove on the V-shaped groove pellet shot from a slingshot, on the lock body inwall, have locating hole with the corresponding position of the pin-and-hole of turning set, be placed with flat pearl and spring in the locating hole, the end of turning set has breach and can cooperate with the shifting block of interior dress arrangement of clutch, adopts the axial limiting parts to link into an integrated entity between internal cylinder and the turning set.