CN1995669A - Lock head of a built-in mortise door lock - Google Patents

Abstract

The invention discloses a lock head of a built-in mortise door lock, which comprises a lock body, wherein lock cylinders are arranged at two ends in the lock body, one lock cylinder is a conventional lock cylinder, the other lock cylinder is an idle lock cylinder and consists of a lock cylinder and a rotating sleeve, the lock cylinder is sleeved in the rotating sleeve, the end parts of the rotating sleeve on the conventional lock cylinder and the idle lock cylinder are provided with notches, a shifting block is arranged between the end parts of the two lock cylinders, a clutch device is arranged in the shifting block, and a reset spring is arranged between the clutch device and the idle lock cylinder. Compared with the existing lock, the lock head of the invention adopts the clutch device with the return spring, so that the rotating sleeve on the idle lock cylinder is always in a linkage state with the shifting block, and the problem that the idle lock cylinder is difficult to be matched with the clutch device because the lock cylinder can idle is solved. After the idle lock cylinder is used, the performance of preventing technical unlocking and destructive lock picking is further improved.

Description

A kind of tapered end of built-in type mortise door lock

Technical field

The invention belongs to mechanical lock, relate to a kind of tapered end 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 shifting block between two lock core ends, and the interlock of they and dead bolt is to realize by the shifting block that has arrangement of clutch.Arrangement of clutch has the projection clutch-plate by two and forms, can relatively rotate between the clutch-plate, they are positioned at shifting block, and an inside convex tendon is arranged on the shifting block inwall, the corresponding breach that has with the projection of clutch-plate on the convex tendon, the end of lock core also has and the corresponding breach of the projection of clutch-plate.Two clutch-plates lay respectively in the breach of two lock core ends, and each clutch-plate all can move in corresponding lock core end breach and shifting block convex tendon breach, and move distance is the thickness of shifting block convex tendon.When a direction is unblanked, the head of key can be with the distance of arrangement of clutch to a shifting block convex tendon thickness of sinciput motion, at this moment enter in the breach of shifting block convex tendon by the clutch-plate of key one side and engage with shifting block, the contact surface of this clutch-plate and another clutch-plate just is positioned at shifting block convex tendon lateral location simultaneously, and still has part to be positioned at the breach of lock core end.Key, key drives clutch-plate, drives the shifting block rotation thereby clutch-plate acts on convex tendon again, and shifting block is stirred the switch that dead bolt is realized lock.When in the other direction key being inserted lock core and unblank, the clutch-plate of this side enters in the breach of shifting block convex tendon and engages with shifting block equally, and the breach that the clutch-plate of opposite side then withdraws from the shifting block convex tendon separates with shifting block.

The tapered end of existing built-in type mortise door lock, though can be from the switch of both direction control lock, deficiency 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, some more satisfactory lock cores have appearred at present, disclose a kind of match lock core of incompatible control lock core open and close of locking side column mechanism and V-shaped groove pellet shot from a slingshot that utilizes as ZL99115581.5 and ZL200520054908.7 patent documentation, and another kind of by between lock core and lock body, being provided with a turning set, can make the lock core (idle-run lock pin) of Lock cylinder idling.The characteristics of idle-run lock pin are, 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.But this class lock core can't be applied on the tapered end of built-in type mortise door lock, and reason is never to solve idle-run lock pin to be difficult to the problem that cooperates with arrangement of clutch because lock core can dally.The idle-run lock pin that also has other structure, their common ground are the turning sets that all has effect identical.

Summary of the invention

The objective of the invention is at above-mentioned situation, a kind of tapered end that comprises the built-in type mortise door lock of idle-run lock pin is provided.

The present invention seeks to realize like this: the tapered end of built-in type mortise door lock comprises lock body, two in the lock body is provided with lock core, the shifting block of dress arrangement of clutch between two lock core ends, being provided with, one of them lock core is conventional lock core (lock core can not dally), another lock core is an idle-run lock pin, is made up of internal cylinder and turning set, and internal cylinder is enclosed within the turning set, idle-run lock pin matches with arrangement of clutch by turning set, is provided with back-moving spring between the end of idle-run lock pin and arrangement of clutch.

Operating principle:

When the non-opening of lock, be subjected to the effect of back-moving spring, arrangement of clutch is in the position near conventional lock core one side, the clutch-plate that cooperates with turning set on the idle-run lock pin in the tapered end stretches in the convex tendon of shifting block, engage the state that often closes that is in shifting block, the clutch-plate that cooperates with conventional lock core then is positioned at and is in outside the shifting block convex tendon and the shifting block released state.Although the turning set on the idle-run lock pin engages with shifting block, owing to can only make internal cylinder relatively rotate cover idle running when using non-matching key to unblank, can not switch lock; This moment, conventional lock core was in and the shifting block released state, can not switch lock.When unblanking, when key is inserted conventional lock core, the head of key with arrangement of clutch to idle-run lock pin direction pushing tow, the clutch-plate that cooperates with conventional lock core is entered in the convex tendon of shifting block to be engaged with shifting block, but key switch lock, after withdrawing from key, arrangement of clutch resets under the effect of back-moving spring; Idle-run lock pin uses matched key, and turning set and internal cylinder are rotated together, drives shifting block and rotates the switch of realizing lock.

Described conventional lock core can adopt the disclosed lock core of ZL99115581.5 patent documentation, comprise pellet shot from a slingshot, the pellet shot from a slingshot return spring, lock body circular hole inboard has square groove, have the side column groove on the lock core, the pellet shot from a slingshot hole, 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 square groove of lock body circular hole inboard, one circle v-depression is all arranged on each pellet shot from a slingshot, be provided with locking side column in the side column groove, the inboard of locking side column is a ∧ shape, can match with the v-depression on the pellet shot from a slingshot, and locking side column is provided with step, with be fixed with pressing plate on the corresponding side column groove of the step outside, be provided with the locking side column return spring between the step of pressing plate and locking side column, 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.

Described idle-run lock pin can adopt the disclosed lock core of ZL200520054908.7 patent documentation, form by internal cylinder and cover turning set thereon, be provided with locking side column mechanism 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, 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, the length of middle pearl is greater than the thickness of turning set jacket wall, 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, deviates from from turning set 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.

The tapered end of the utility model built-in type mortise door lock is compared with existing tapered end, owing to adopted the arrangement of clutch of band back-moving spring, turning set on the idle-run lock pin is in and shifting block interlock state all the time, solved existing idle-run lock pin because turning set can rotate arbitrarily, be difficult to the projection on the clutch-plate is inserted the difficult problem that the breach of shifting block inner convex rib engages with shifting block.After the utility model uses idle-run lock pin, make its prevent skilled unlocking and and the performance of destructive picking lock be further enhanced.

Further specify technical solution of the present invention below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a sectional view of the present invention.

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

Fig. 3 is B among Fig. 1-B sectional view.

The specific embodiment

The tapered end of built-in type mortise door lock of the present invention is seen Fig. 1, Fig. 2 and Fig. 3, one lock body 1 is arranged, two in the lock body 1 is provided with lock core, one of them lock core is conventional lock core 20, another lock core is an idle-run lock pin, form by internal cylinder 9 and turning set 13, internal cylinder 9 is enclosed within the turning set 13, the end of turning set 13 all has breach 11 on conventional lock core 20 and the idle-run lock pin, between two lock core ends, be provided with shifting block 2, be equiped with arrangement of clutch in the shifting block 2, arrangement of clutch has projection 14 by two, 16 clutch-plate 3,17 form, clutch-plate 3, can relatively rotate between 17, one inside convex tendon 15 is arranged on shifting block 2 inwalls, on the convex tendon 15 with the projection 14 of clutch-plate, the 16 corresponding breach that have, two clutch-plates 3,17 lay respectively in the breach 11 of turning set end and conventional lock core 20 ends on the internal cylinder 9, each clutch-plate all can move in the breach 11 of corresponding conventional lock core 20 ends or turning set 13 ends and shifting block convex tendon 15 breach, move distance is the thickness of shifting block convex tendon 15, between the end of idle-run lock pin turning set 13 and arrangement of clutch, be provided with back-moving spring 4, lock body 1 is provided with square hole 25, to adapt to the rotation of shifting block 2.

On the conventional lock core 20 pellet shot from a slingshot 19 is arranged, pellet shot from a slingshot return spring 21, the lock body circular hole inboard that conventional lock core is 20 1 has square groove 22, have the side column groove on the lock core 20, the pellet shot from a slingshot hole, 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 square groove 22 of lock body circular hole inboard, one circle v-depression is all arranged on each pellet shot from a slingshot 19, be provided with locking side column 23 in the side column groove, the inboard of locking side column 23 is a ∧ shape, can match with the v-depression on the pellet shot from a slingshot 19, locking side column 23 is provided with step, and is fixed with pressing plate on the corresponding side column groove of the step outside, is provided with locking side column 23 return springs between the step of pressing plate and locking side column 23, the edge that lockhole on the lock core 20 is positioned at lock core 20 is semiclosed shape, and the hole flank of tooth is vertical with 19 groups of pellets shot from a slingshot.Key 18 is inserted in the lockhole among Fig. 1, also not with arrangement of clutch to sinciput, can not unblank.

Be provided with the pellet shot from a slingshot 10 and the spring 24 of band V-shaped groove in the internal cylinder 9 of idle-run lock pin, the locking side column 8 that cooperates with this pellet shot from a slingshot 10, V-shaped groove pellet shot from a slingshot 10 and locking side column 8 are formed locking side column mechanism, also be fastened with sheath 12 on the internal cylinder 9, position corresponding with locking side column 8 on the sheath 12 has the perforation slotted hole, between internal cylinder 9 and lock body 1, be provided with a turning set 13, have the perforation pin-and-hole on turning set 13 jacket walls, be placed with pearl 7 in the activity in the pin-and-hole, the length of middle pearl 7 is greater than the thickness of turning set 13 jacket walls, on lock body 1 inwall, have locating hole with the corresponding position of the pin-and-hole of turning set 13, be placed with flat pearl 6 and spring 5 in the locating hole, adopt axial limiting parts card to link into an integrated entity between internal cylinder 9 and the turning set 13, the limiting component card passes turning set 13 and matches with groove 8 on the internal cylinder 9, and limiting component also can adopt other forms such as pin; The length that is positioned at the locking side column 8 on the internal cylinder 9 is to determine like this, and under the lock closed condition (matched key is extracted out in internal cylinder 9, and locking side column 8 is outwards ejected by V-shaped groove pellet shot from a slingshot 10), the lateral surface of locking side column 8 is concordant with the external surface of internal cylinder 9; The length of middle pearl 7 is to determine like this, under the lock opening (after matched key inserts internal cylinder 9, locking side column 8 cooperates fully with V-shaped groove pellet shot from a slingshot 10 and contracts in internal cylinder 9), the outer face of pearl 7 was concordant with the external surface of turning set 13 during the length of pearl 7 just made during the length of locking side column 8 added.Among Fig. 3, internal cylinder 9 is the inserting key kit not, and being in can idling conditions.

Claims (3)

1. A lock head of a built-in mortise door lock, including a lock body, two ends of the lock body are provided with a lock cylinder, and a toggle head with a built-in clutch device is provided between the ends of the two lock cylinders. It is characterized in that: one of The lock cylinder is a conventional lock cylinder, and the other lock cylinder is an idle lock cylinder, which is composed of an inner lock cylinder and a rotating sleeve. The inner lock cylinder is set in the rotation sleeve. A return spring is provided between the end of the clutch and the clutch. 2. The lock head according to claim 1, characterized in that: the conventional lock core includes pins and pin return springs, a square groove is opened on the inner side of the round hole of the lock body, side column grooves and pin holes are opened on the lock core , the inner side of the side column groove communicates with the side of the pinhole, and is roughly perpendicular to the pinhole. The outer side of the side column groove can correspond to the square groove inside the round hole of the lock body. There is a V-shaped groove on each pinhole. There is a locking side column in the column groove. The inner side of the locking side column is ∧-shaped, which can be matched with the V-shaped groove on the marble. There is a step on the locking side column, and the outer side of the side column groove corresponding to the step is fixed with The pressing plate is provided with a locking side post return spring between the pressing plate and the step of the locking side post, and the lock hole on the lock core is semi-closed at the edge of the lock core, and the tooth surface of the hole is perpendicular to the tumbler group. 3. The lock head according to claim 1 or 2, characterized in that: the inner lock core is provided with a locking side column mechanism, and a sheath is fastened on the inner lock core, and the sheath corresponds to the locking side column There is a slot-shaped hole in the position, and a rotating sleeve is provided between the lock cylinder and the lock body. There is a through pin hole on the wall of the rotating sleeve, and a movable middle bead is placed in the pin hole. The length of the middle bead is greater than the thickness of the wall of the rotating sleeve. There is a positioning hole on the inner wall of the lock corresponding to the pin hole of the rotating sleeve, and a flat ball and a spring are placed in the positioning hole. The core and the rotating sleeve are connected together by an axial limit part to prevent the lock core from coming out of the rotating sleeve; the length of the locking side column on the lock core is determined in this way, when the lock is closed, the locking side column The outer surface of the outer surface of the lock cylinder is flush with the outer surface of the lock cylinder; the length of the middle bead is determined in this way. When the lock is opened, the length of the locking side column plus the length of the middle bead just makes the outer end surface of the middle bead and the outer surface of the rotating sleeve The surface is even.