CN2418212Y

CN2418212Y - Built-in lock for anti-theft door

Info

Publication number: CN2418212Y
Application number: CN 00210800
Authority: CN
Inventors: 李思强
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-02
Filing date: 2000-02-02
Publication date: 2001-02-07
Anticipated expiration: 2010-02-02

Abstract

The utility model relates to a built-in lock for an anti-theft door, which belongs to the technical field of the lockset. The utility model is composed of a lock shell, a lock cover, a cross lock head fixedly connected with the lock shell, a lock ring, a bolt, a bolt seat, a lock spring, a bolt button, lateral gears, vertical gears, a double-end lock rod, and a rack lock rod. The utility model is characterized in that the movement of the rack lock rod and a shifting fork is controlled by the rotation of synchronous gears, and thus opening and locking the door are realized. When the door is locked in outdoor, the lock can not be opened in the house; meanwhile, the functions of a medium lock and a side lock are realized. The utility model has the advantages of simple structure, reliable performance, safety and theft protection and low cost.

Description

The security door Built-in lock

The utility model belongs to lock technology field, in particular a kind of improvement to the security door Built-in lock.

At present, the safety of safe-guard door lock mostly is to guarantee to have plenty of two keys and drive two locks by limit lock and two locks of middle lock, has plenty of a key and drives two locks.Drive the limit lock in all must opening earlier in a word behind the lock, the lock back Lock with inside lock of perhaps lockstitching a border earlier.This lock brings very burden to the user, because technology is loaded down with trivial details, brings very big difficulty to manufacturer production.

The purpose of this utility model provide a kind of simple in structure, dependable performance, easy to use, cost is low, have the security door Built-in lock of limit lock and middle lock function simultaneously.

The technical solution of the utility model is: by lock housing, locking closure, the Cross lock affixed with locking closure, retainer, dead bolt, the dead bolt seat that the dead bolt front end is provided with, latch bolt spring, the dead bolt knob, be contained in the lock housing and with the traverse gear and the vertical travelling gear of Cross lock concentric, the double end cylinder tooth bar locking bar that is meshed with traverse gear, the vertical tooth bar locking bar that stretch out outside the lock housing opening its end that is meshed with vertical travelling gear constitutes, it is characterized in that: dead bolt bar end is provided with guide hole, the guide hole outside is provided with dead bolt and dials a little, be with shift fork A on the Cross lock, long point and a short point of dialling dialled is set on the shift fork A, one group of point also is set on the transverse gear, transverse gear and vertical gear are combined as double-deck synchromesh gear by sunk screw, between transverse gear and vertical gear and with the two concentric, dividing plate is set, dividing plate be fixed on affixed with lock housing and the parallel limiting plate that contacts with vertical tooth bar on, shift fork B is rotationally connected at the middle part of double end cylinder tooth bar locking bar, the shift fork B other end inserts in the guide hole of dead bolt bar end, between dead bolt and double end cylinder tooth bar locking bar with the affixed spacing shift fork seat of lock housing, the shift fork C of a shift fork seat and an end band through hole axle is rotationally connected, the shift fork C other end is provided with U type opening, dead bolt is dialled in the U type opening that a little is stuck in shift fork C, and vertical tooth bar locking bar knob is set at the back side of lock housing.

Good effect of the present utility model is: the security function with present security door limit lock and middle lock, convenient, fast concerning the user, be the simplification of production technology and the reduction of cost to producer, and this lock construction is simple, has reliable mechanical performance, not easy break-down.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is an assembling drawing of the present utility model;

Fig. 2 is the rear elevation of assembling drawing;

Fig. 3 is the dead bolt structural representation;

Fig. 4 is a shift fork A master TV structure schematic diagram;

Fig. 5 is a shift fork A side-looking structural representation;

Fig. 6 is a fork C master TV structure schematic diagram;

Fig. 7 is a fork C side-looking structure cut-away view;

Fig. 8 is the main TV structure schematic diagram of spacing shift fork seat;

Fig. 9 is spacing fork seat side-looking structure cut-away view;

Figure 10 is a traverse gear master TV structure schematic diagram;

Figure 11 is a traverse gear side-looking structure cut-away view;

Figure 12 is vertical travelling gear master TV structure schematic diagram;

Figure 13 is vertical travelling gear side-looking structure sectional view;

Figure 14 is the A-A sectional view of Figure 13.

Referring to Fig. 1-Figure 14, the utility model is by lock housing 14, locking closure 4, the Cross lock 3 affixed with locking closure 4, retainer 2, dead bolt 13, the dead bolt seat 11 that the dead bolt front end is provided with, latch bolt spring 12, dead bolt knob 19, be contained in the lock housing and with the traverse gear 7 and the vertical travelling gear 21 of Cross lock concentric, the double end cylinder tooth bar locking bar 1 that is meshed with traverse gear, the vertical tooth bar locking bar 22 that stretch out outside the lock housing opening its end that is meshed with vertical travelling gear constitutes, it is characterized in that: dead bolt bar end is provided with guide hole, the guide hole outside is provided with dead bolt and dials a little, be with shift fork A6 on the Cross lock, long point and a short point of dialling dialled is set on the shift fork A, one group of point also is set on the transverse gear, transverse gear and vertical gear are combined as double-deck synchromesh gear by sunk screw, between transverse gear and vertical gear and with the two concentric, dividing plate 8 is set, dividing plate be fixed on affixed with lock housing and with the parallel limiting plate that contacts 10 of vertical tooth bar locking bar on, limiting plate plays guide rail and axle sleeve, shift fork B9 is rotationally connected at the middle part of double end cylinder tooth bar locking bar, the shift fork B other end inserts in the guide hole of dead bolt bar end, between dead bolt and double end cylinder tooth bar locking bar with the affixed spacing shift fork seat 15 of lock housing, the shift fork C16 of a shift fork seat and an end band through hole axle is rotationally connected, the shift fork C other end is provided with U type opening, dead bolt is dialled in the U type opening that a little is stuck in shift fork C, vertical tooth bar locking bar knob 20 is set at the back side of lock housing, the 5th, sunk screw, the 17th, shift fork Building B bolster, the 18th, installing hole, the 23rd, connecting axle.

The utility model in use, at first key being pressed cross lock mark point inserts, turn clockwise and drive shift fork A, the long some disengaging shift fork B that dials of shift fork A, latch bolt spring drives shift fork B and moves, dead bolt is got back to locked position simultaneously, at this moment, the short point of dialling of dialling some disengaging traverse gear of shift fork A, dextrorotation is circled, the reverse side of short group of point of shift fork A contacts with the some reverse side of dialling of traverse gear, drives traverse gear and turns clockwise with vertical travelling gear, and traverse gear interlock tooth bar promotes double end cylinder tooth bar locking bar, shift fork B also moves under the drive of shift fork B bolster thereupon simultaneously, make the length of shift fork A dial a little and can not contact with shift fork B, vertical travelling gear interlock tooth bar promotes two vertical tooth bar locking bars and does counter motion, when key is rotated clockwise to mark, double end cylinder tooth bar locking bar, two vertical tooth bar locking bars all shift out lock body 30mm, at this moment, key is extracted dead bolt, double end cylinder tooth bar locking bar, two vertical tooth bar locking bars are all locked.Also locked at indoor dead bolt knob and vertical tooth bar locking bar knob.When inserting Cross lock, a key makes it to be rotated counterclockwise a week, shift fork A is short, and the point of dialling contacts with the point of dialling of traverse gear, traverse gear interlock rack drives double end cylinder tooth bar locking bar moves in lock housing, shift fork B also moves thereupon, and vertical two vertical tooth bar locking bars of travelling gear interlock are done same moved further in lock housing.When the also poor 4mm of two end faces of double end cylinder tooth bar locking bar did not enter lock housing, the length of shift fork A was dialled a little and is begun to contact with shift fork B, and shift fork B stirs dead bolt in lock housing, and simultaneously, double end cylinder tooth bar locking bar and two vertical tooth bar locking bars have also put in place, and door has been opened.At this moment, the key dextrorotation turn 90 degrees extract, in people's inlet chamber, dead bolt is automatic locking under the effect of spring.Stir the dead bolt knob counterclockwise, rotation shift fork C, dead bolt will be pushed aside, and vertical tooth bar locking bar knob clockwise rotates to opening, and rotates counterclockwise to be lock.

Claims

1, a kind of security door Built-in lock, be by lock housing (14), locking closure (4), the Cross lock affixed (3) with locking closure, retainer (2), dead bolt (13), the dead bolt seat (11) that the dead bolt front end is provided with, latch bolt spring (12), dead bolt knob (19), be contained in the lock housing and with the traverse gear (21) of Cross lock concentric and vertical travelling gear (7), the double end cylinder tooth bar locking bar (1) that is meshed with traverse gear, the vertical tooth bar locking bar (22) that stretch out outside the lock housing opening its end that is meshed with vertical travelling gear constitutes, it is characterized in that: dead bolt bar end is provided with guide hole, the guide hole outside is provided with dead bolt and dials a little, be with shift fork A (6) on the Cross lock, long point and a short point of dialling dialled is set on the shift fork A, one group of point also is set on the transverse gear, transverse gear and vertical gear are combined as double-deck synchromesh gear by sunk screw (5), between transverse gear and vertical gear and with the two concentric, dividing plate (8) is set, dividing plate be fixed on affixed with lock housing and the parallel limiting plate that contacts with vertical tooth bar (10) on, shift fork B (9) is rotationally connected at the middle part of double end cylinder tooth bar locking bar, the shift fork B other end inserts in the guide hole of dead bolt bar end, between dead bolt and double end cylinder tooth bar locking bar with the affixed spacing shift fork seat of lock housing (15), the shift fork C (16) of a shift fork seat and an end band through hole axle is rotationally connected, the shift fork C other end is provided with U type opening, dead bolt is dialled in the U type opening that a little is stuck in shift fork C, and vertical tooth bar locking bar knob (20) is set at the back side of lock housing.