CN2145233Y

CN2145233Y - Anti-theft safety door locking apparatus with three-point locking

Info

Publication number: CN2145233Y
Application number: CN 93233168
Authority: CN
Inventors: 唐勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-08
Filing date: 1993-02-08
Publication date: 1993-11-03
Anticipated expiration: 2003-02-08

Abstract

The utility model discloses an anti-theft safety door lock apparatus with three-point locking. The anti-theft safety door lock apparatus is composed of a master lock body (3) and an auxiliary lock body (2). The anti-theft safety door lock apparatus is characterized in that the master lock body and the auxiliary lock body are connected with a wire flexible shaft (5), which makes the three lock tongues of the master lock body and the auxiliary lock body be opened and be closed by the key of the same lock core. The locking point and the locking surface of a door are enlarged. If the master lock tongue of the master lock body (3) is sawed, the door can not be easily opened. The anti-theft safety performance is higher.

Description

Anti-theft safety door locking apparatus with three-point locking

The utility model relates to a kind of 3 interlocking anti-theft security door lock assemblies.

Existing all kinds of antitheft, pick-proof built-in lock kind is a lot of, generally all adopts single-point, folk prescription to locking.Though in practice, also can play the full function of anti-stealing safety; But stealer but can probe into sawed-off dead bolt or steals with the broken chamber of locking of methods such as collision energetically with metal saw blade.

The purpose of this invention is to provide a kind of safe-guard door lock device of multiple spot interlocking, wish that it can pass through a lock core, control a plurality of dead bolts, allow locked position place on 1-3 the face and disperse latched position, thereby make the robber can't knock locked position; Even the stealer sawed-off dead bolt of saw blade, other dead bolt also can prevent door effectively and open, reach the full purpose of anti-stealing safety with this.

This 3 interlocking anti-theft security door lock assemblies are made up of main lock body and auxiliary lock body, it is characterized in that being connected by Bowden cable between the major and minor lock body, make main dead bolt and secondary dead bolt by Bowden cable, adjustment screw synchronization telescope.

Described main lock body by locking plate, base plate, main dead bolt, torsion spring, finger, dial plate, lining, shank of the key, lock handle, lock plate, main locking closure etc. forms, and it is characterized in that respectively being provided with at main lock body dual-side the guide pin bushing of a tandem arrangement Bowden cable; Respectively be provided with a fixed block in main dead bolt both sides in addition; On locking plate, establish simultaneously two fixedly card posts of Bowden cable.

Described auxiliary lock body is made up of secondary locking closure, secondary dead bolt, spring, push rod adjustment screw, and its concrete structure is that secondary dead bolt is horizontally-arranged in the auxiliary lock body, and secondary dead bolt is through connecting with Bowden cable in its affixed push rod; Push rod is being nested with a return spring outward, and push rod is provided with an adjustment screw.

3 interlocking anti-theft security door lock assemblies according to above schematic design, its advantage is to adopt 3 interlockings, changed the present situation of original door lock single-point locking, especially owing to see it only is the single-point locking from the outside, so promptly use the sawed-off main lock body dead bolt of saw blade, also door can't be opened, improve the theftproof performance of door lock.

Accompanying drawing 1 is the utility model overall structure schematic diagram;

Accompanying drawing the 2, the 3rd, the utility model master lock body structure schematic diagram;

Accompanying drawing the 4, the 5th, the utility model auxiliary lock body structural representation.

Further describe the utility model and provide embodiment below in conjunction with accompanying drawing.

(1) secondary locked position among the figure, (2) auxiliary lock body, (3) main lock body, (4) main locked position, (5) Bowden cable, (6) locking plate, (7) pulley, (8) nut, (9) base plate, (10) main dead bolt, (11) guide pin bushing, (12) torsion spring, (13) finger, (14) dial plate, (15) lining, (16) shank of the key, (17) pulley spindle, (18) lock handle, (19) lock plate, (20) main locking closure, (21) secondary locking closure, (22) adjustment screw, (23) return spring, (24) push rod, (25) secondary dead bolt, ((27) card post.

This 3 interlocking anti-theft security door lock assemblies are to a kind of improvement of existing all kinds of safe-guard door locks, are made up of main lock body (3) and auxiliary lock body (2), and its principal character is to be connected by Bowden cable (5) between the major and minor lock body.

Wherein said main lock body (3) by locking plate (6), base plate (9), main dead bolt (10), torsion spring (12), finger (13), dial plate (14), lining (15), shank of the key (16), lock handle (18), main locking closure (20) etc. and form, it is characterized in that respectively being provided with the guide pin bushing (11) of a tandem arrangement Bowden cable (5) at main lock body (3) inner side edge; On the base plate (9) of main dead bolt both sides, respectively be provided with a fixed block (7), respectively establish a fixedly card post (27) of Bowden cable (5) at locking plate chute two groove ends simultaneously.

Described auxiliary lock body (2) is made up of secondary locking closure (20), secondary dead bolt (25), return spring (23), push rod (24) etc., its concrete structure is that secondary dead bolt (25) is horizontally-arranged in the auxiliary lock body (2), secondary dead bolt (25) is through being connected with Bowden cable (5) with its affixed push rod (24), push rod (24) is outer to be nested with a return spring (23), and an adjustment screw (22) is being set on the push rod.

In use, both sides about being fixed in two auxiliary lock bodies (2) in the door, on upper door frame and bottom door frame, respectively settle a locked position (1), these two auxiliary lock bodies (2) are connected with push rod (24) through an end of two Bowden cables (5), one end of Bowden cable (5) then penetrates in two cover (11) and through being fixed on the pulley (7) on the base plate (9), being connected in the card post (27) of being located at locking plate (6).

When key is inserted main lock body lock core and key, finger (13) by allocating slot two groove ends when central point moves, along with main dead bolt (10) is withdrawed from by main locked position (4); Be located at the card post of two on the locking plate (6) (27) also to equidirectional migration; Bowden cable this moment (5) is in tension, and making up and down through two fixed blocks (7), guide pin bushing (11), two Bowden cables (5) all shrink to main lock body (3) direction; Two Bowden cables (5) other end is then strained push rod (24) thus, and compression retracteding position spring (23) makes secondary dead bolt (25) also withdraw from its locked position; Reach the purpose of opening the door.

Otherwise, when main dead bolt (10) when stretching out, because Bowden cable loosens and resets, auxiliary lock body (3) is interior because the elastic reaction of spring (23), also make the secondary dead bolt (25) that links into an integrated entity with push rod (24) protruding, probe into its locked position, reach the purpose of locking a door.Because these 3 interlocking anti-theft security door lock assemblies use in reality, locking has blocked 1-3 face of door, is knocked so locked position is very difficult, even main dead bolt (10) also can't be opened door easily by sawed-off.

3 interlocking anti-theft security door gears (seeing accompanying drawing 1) that the utility model is introduced are made up of main lock body (3) and auxiliary lock body (2), and its principal character is that the door of major and minor lock body is connected by Bowden cable (5); Make three dead bolts of major and minor lock body be subjected to same lock core key opening and closing.Enlarged the locking point and the locking face of door,, had higher anti-theft security performance even the main dead bolt of main lock body (3) still can't be opened door easily by sawed-off.

Claims

1, a kind of 3 interlocking anti-theft security door lock assemblies are made up of main lock body (3) and auxiliary lock body (2), it is characterized in that:

There is Bowden cable (5) to be connected between A, described main lock body (3) and the auxiliary lock body (2);

B, described main lock body (3) by locking plate (6), base plate (9), main dead bolt (10), torsion spring (12), finger (13), dial plate (14), lining (15), shank of the key (16), lock handle (18), lock plate (19), main locking closure (20) is formed, its concrete structure is respectively to be provided with a guide pin bushing (11) that places Bowden cable (5) at main lock body (3) dual-side, on the locking plate (6) of main dead bolt (10) both sides, a fixed block (7) is arranged, on locking plate (6), be provided with two fixedly card posts (27) of Bowden cable (5) simultaneously;

C, described auxiliary lock body (2) are made up of secondary locking closure (20), secondary dead bolt (25), spring (23), push rod (24), adjustment screw (22), its concrete structure is in secondary dead bolt (25), the horizontally-arranged auxiliary lock body (2), secondary dead bolt (25) is through being connected with its affixed push rod (24) Bowden cable (5), push rod (24) is outer to be nested with a return spring (23), and push rod is provided with an adjustment screw (22).