CN202202646U

CN202202646U - Automatic back locking device of door

Info

Publication number: CN202202646U
Application number: CN2011202340921U
Authority: CN
Inventors: 施继平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-22
Filing date: 2011-06-22
Publication date: 2012-04-25
Anticipated expiration: 2021-06-22

Abstract

The utility model relates to an automatic anti-lock device of door, the various burglary-resisting doors of specially adapted, this automatic anti-lock device is by lock body (1), lock core pivot (2), lock core pivot arch (3), vice lock tongue horizontal bulge (4), vice lock tongue vertical lug (5), main lock tongue L shape movable block (6), the bolt, vice lock tongue (8), main lock tongue lug (9), main lock tongue (10), the main lock tongue spring, vice lock tongue spring, the packing ring, lock body jack and main lock tongue through-hole (14) are constituteed, when closing the door, push away the lock body jack through door frame extrusion vice lock tongue (8) to the bolt, main lock tongue (10) receive the promotion of vice lock tongue (8) and door frame and make the door close, simultaneously owner, vice lock tongue is respectively under the promotion of vice lock tongue spring, the bolt inserts in the lock body jack through main lock tongue through-hole (14), the door is locked by the contrary. The automatic back locking device realizes the back locking function through the door closing action, does not need a key, has simple structure and is very convenient and practical.

Description

A kind of automatic anti-lock device

Technical field

The present invention relates to a kind of automatic anti-lock device, particularly relate to a kind of automatic anti-lock device of security door.

Background technology

The anti-lock device of the suitable door of selling in the market is to constitute one with door lock; Just on the basis of door lock, installing an independent dead bolt additional realizes back locking function for it; So must could realize locking of door through key; Very inconvenient, and do not having can't to realize back locking function under the situation of key.

The utility model content

The utility model technical problem to be solved provides a kind of automatic anti-lock device, and it can realize locking automatically, does not need key when locking, and is very convenient and practical.

For solving the problems of the technologies described above; The basic design of the utility model is: this automatic anti-lock device is protruding 3 by lock body 1, lock core rotating shaft 2, lock core rotating shaft, the L shaped movable block of the vertical projection of secondary dead bolt lateral projection 4, secondary dead bolt 5, main dead bolt 6, latch, secondary dead bolt 8, main dead bolt projection 9, main dead bolt 10, main latch bolt spring, and secondary latch bolt spring, packing ring, lock body jack and main dead bolt through hole 14 are formed.At closing time, doorframe pushes secondary dead bolt 8 and makes it to move backward, and the vertical projection 5 of secondary dead bolt promotes the L shaped movable block 6 clockwise directions rotation of main dead bolt and pulls out the lock body jack to latch; At this moment secondary dead bolt 8 drives main dead bolt 10 and moves backward; Door is shut, and secondary latch bolt spring promotes major and minor dead bolt return simultaneously, and the L shaped movable block 6 of main dead bolt is rotated counterclockwise and pushes latch in the lock body jack; Main dead bolt 10 is fastened on lock body 1 and can not be seesawed, and door is locked; When opening the door, key drives lock core rotating shaft 2 and rotates, and lock core rotating shaft protruding 3 drives secondary dead bolt 8 and moves backward, and the L shaped movable block 6 clockwise directions rotation of main dead bolt is pulled out the lock body jack to latch, and at this moment secondary dead bolt 8 drives main dead bolt 10 and moves backward, and door is just drawn back.

Because above-mentioned automatic anti-lock device is to realize not needing key by back locking function through the action of closing the door, and is simple in structure, so very convenient and practical.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain.

Fig. 1 is the structure chart of automatic anti-lock device.

Fig. 2 is the structure chart of the secondary dead bolt of automatic anti-lock device.

Fig. 3 is the structure chart of automatic anti-lock device lock core rotating shaft.

The specific embodiment

Combine accompanying drawing that the specific embodiment is described now, like Fig. 1, Fig. 2 and shown in Figure 3, this automatic anti-lock device is protruding 3 by lock body 1, lock core rotating shaft 2, lock core rotating shaft, the L shaped movable block of the vertical projection of secondary dead bolt lateral projection 4, secondary dead bolt 5, main dead bolt 6, latch, secondary dead bolt 8, main dead bolt projection 9, main dead bolt 10, main latch bolt spring; Secondary latch bolt spring, packing ring, lock body jack and main dead bolt through hole 14 are formed; Secondary dead bolt 8 is halved together with main dead bolt 10 and touches, and its front end face all is an arc, on secondary dead bolt 8 back segments secondary dead bolt lateral projection 4 is arranged; On the secondary dead bolt lateral projection 4 the vertical projection 5 of secondary dead bolt is arranged; Have main dead bolt projection 9 can block secondary dead bolt 8 on the leading portion of main dead bolt 10 and move backward, its back segment is connected with the L shaped movable block 6 of main dead bolt and can on main dead bolt 10, rotates along its summit, and an end of the L shaped movable block 6 of main dead bolt contacts with the vertical projection 5 of secondary dead bolt; And its other end hinged latch; Latch passes main dead bolt through hole 14 and can insert in the lock body jack, and secondary latch bolt spring is enclosed within the back segment of secondary dead bolt 8, and the one of which end contacts with L shaped movable block 6 of main dead bolt and secondary dead bolt lateral projection 4 through packing ring; And the inner surface of its other end and lock body 1 contacts; Lock core rotating shaft 2 is stuck on the lock body 1 and can rotates freely, and has lock core rotating shaft protruding 3 to contact with secondary dead bolt lateral projection 4 above it, and lock body 1 is a box-shaped.At closing time; Doorframe pushes secondary dead bolt 8 and makes it to move backward, and the vertical projection 5 of secondary dead bolt promotes the L shaped movable block 6 clockwise directions rotation of main dead bolt, and the latch that is connected in L shaped movable block 6 other ends of main dead bolt is drawn out the lock body jack; Thereby the main dead bolt projection 9 of at this moment secondary dead bolt 8 promotions drives main dead bolt 10 and moves backward; Door is shut, and simultaneously secondary latch bolt spring promotes major and minor dead bolt return through packing ring, thereby the L shaped movable block 6 of main dead bolt is rotated counterclockwise under packing ring promotes and pushes latch in the lock body jack; Main dead bolt 10 is fastened on lock body 1 and can not be seesawed, and door is locked; When opening the door; Key drives lock core rotating shaft 2 and rotates; Lock core rotating shaft protruding 3 promotes secondary dead bolt lateral projection 4 and drives secondary dead bolt 8 and move backward, and the vertical projection 5 of secondary dead bolt promotes L shaped movable block 6 clockwise directions of main dead bolt and rotates, and the latch that connects L shaped movable block 6 other ends of main dead bolt is drawn out the lock body jack; Thereby the main dead bolt projection 9 of at this moment secondary dead bolt 8 promotions drives main dead bolt 10 and moves backward, and door is just drawn back.

In addition, this automatic anti-lock device can also use and on window and drawer, realize its back locking function.

Claims

1. the automatic anti-lock device of a door comprises lock body (1), lock core rotating shaft (2), main dead bolt (10), main latch bolt spring; Secondary dead bolt (8) and secondary latch bolt spring; It is characterized in that: said secondary dead bolt (8) and main dead bolt (10) are halved together and touch, and its front end face all is an arc, on secondary dead bolt (8) back segment secondary dead bolt lateral projection (4) are arranged; On the secondary dead bolt lateral projection (4) the vertical projection of secondary dead bolt (5) is arranged; Have main dead bolt projection (9) can block secondary dead bolt (8) on the leading portion of main dead bolt (10) and move backward, its back segment is connected with the L shaped movable block of main dead bolt (6) can go up rotation at main dead bolt (10) along its summit, and an end of the L shaped movable block of main dead bolt (6) contacts with the vertical projection of secondary dead bolt (5); And its other end hinged latch, the main dead bolt through hole (14) that latch passes on the main dead bolt (10) inserts in the lock body jack on the lock body (1); Said secondary latch bolt spring is enclosed within the back segment of secondary dead bolt (8), and the one of which end contacts with L shaped movable block of main dead bolt (6) and secondary dead bolt lateral projection (4) through packing ring, and the inner surface of its other end and lock body (1) contacts; Said main latch bolt spring is enclosed within the back segment of main dead bolt (10); Affiliated lock core rotating shaft (2) is stuck in lock body (1) and goes up and can rotate freely, and has lock core rotating shaft protruding (3) to contact with secondary dead bolt lateral projection (4) above it; Said lock body (1) is a box-shaped.