CN2386130Y

CN2386130Y - Anti-theft automatic lock

Info

Publication number: CN2386130Y
Application number: CN 99232777
Authority: CN
Inventors: 彭彰银
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-08
Filing date: 1999-02-08
Publication date: 2000-07-05
Anticipated expiration: 2009-02-08

Abstract

The utility model discloses a theft-proof automatic lock, comprising a lock body 1, a lock tongue 2, a manual switch 4, a lock head 5, a main-lock mechanism 6, a locking device 7, and a trigger device 3 particularly. When a trigger wheel 8 touches a door frame in the process of door closing, a trigger push rod 11 collides with a linking lever 13, and a locking pawl 15 is separated from a locking groove 16. A main-lock spring 22 drives a main-lock slide plate 17 automatically ejecting the lock tongue 2 out of the lock body 1, and realizes automatic locking. The utility model has the advantages that the utility model can reduce the abrasion of the door frame and reduces collision noise. A trigger mechanism is flexible. The utility model also has the advantages of reliable automatic-locking operation, strong interchangeability with common door locks, drill-proof functions and prizing-proof functions.

Description

A kind of antitheft automatic locking

The utility model relates to a kind of lockset, particularly a kind of antitheft automatic locking.

At present, lock is of a great variety on the market, characteristic each one.The dead bolt of most of theftproof lock is cylinder or cuboid, by key rotation or the manual action that dead bolt is stretched out or retract the realization lock, can not in the process of closing the door, realize the action of lock automatically, its deficiency is, when shutting the door after you, theft-proof bolt can not stretch out automatically, and theftproof is poor during this state.Another kind of mechanical automatic door lock, the inner cover mechanism of clinohedral triggering lock body when colliding doorframe of giving prominence to outside lock body by another one stretches the realization automatic blocking with dead bolt, but has following problem: 1, clinohedral is often collided doorframe and is damaged the doorframe body easily; 2, after the doorframe wearing and tearing, the malfunctioning cisco unity malfunction that causes of automatic blocking mechanism; 3, stretch out dead bolt automatically owing to controlling by clinohedral, installation accuracy requires very high, so be difficult to satisfy this requirement in actual applications; 4, lock core position disunity can not exchange with common door lock; 5, the noise of clinohedral collision doorframe is big.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part and a kind of doorframe wearing and tearing that can effectively reduce is provided, reduce collision noise, trigger mechanism is flexible, automatically locks reliable operation, can exchange the antitheft automatic locking of easy row easy to install with common door lock fully.

The purpose of this utility model is to reach by following measure: it comprises lock body, dead bolt, hand switch, tapered end, main latch mechanism, locking device, also has flip flop equipment, its structure is: the part that triggers wheel is installed in outside the lock body, triggering wheel is connecting the triggering push rod and return spring is being housed, with the position of triggering push rod back certain distance on, the interlock lever is installed, the afterbody of interlock lever is provided with lock pawl, the lock slots that corresponding with lock pawl is on the main slide plate is at main slide plate connectionist dead bolt.There is part to be exposed to outside the lock body owing to trigger wheel, in the process of closing the door, when the triggering wheel collides doorframe, the triggering wheel of flip flop equipment is at first run into doorframe, force and trigger the certain stroke of the inside motion of elastic force that push rod overcomes return spring, when the afterbody that triggers push rod strikes the interlock lever, the pulling force that the interlock lever overcomes arm spring again upwards lifts lock pawl and breaks away from lock slots on the main slide plate, at this moment, main lock slide plate drives dead bolt and stretches out lock body under the driving of main lock spring, thereby realizes locking a door automatically.

The utility model has following advantage compared to existing technology: can reduce the wearing and tearing of doorframe, reduce collision noise, trigger mechanism is flexible, and automatic blocking reliable operation, strong with common door lock interchangeability has anti-theft feature anti-drilling, pick-proof.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a structural representation of the present utility model:

Below in conjunction with embodiment accompanying drawing is described in further detail.

Fig. 1, lock body 1 inside is cavity, and the main slide plate 17 of dead bolt 2 and main latch mechanism 6 is connected as a single entity and is installed in the lock body 1, and dead bolt can stretch out lock body 1 outer also can be withdrawn in the lock body 1; Main slide plate 17 is provided with main lock guide rod 22 and lock slots 16; Main lock spring 20 is sleeved on the outside of main lock guide rod 22; Flip flop equipment 3 is installed in the lock body 1, the part that triggers wheel 8 is outside lock body, triggering wheel 8 usefulness round pins is fixed in the triggering wheel box 9, trigger box 9 and be connected as a single entity, return spring 10 is installed, triggering push rod 11 back certain distances in triggering push rod 11 outsides with triggering push rod 11, with cutting 12 interlock lever 13 is installed in the inwall of lock body 1, one end of interlock spring 14 is connected with interlock lever 13, and the other end is fixed on the inwall of lock body 1, is provided with lock pawl 15 at the afterbody of interlock lever 13; Hand gear 4 is to be directly installed on the main lock slide plate 17, and handle is outside lock body 1; Tapered end 5 is installed on the lock body 1, and its that end in lock body 1 inside is equipped with center runner 18, and centre wheel 18 links to each other by lock link 19 with main the lock between the slide plate 17; The stop block 21 of locking device 7 is installed in the lock body 1, and its switch is located at outside the lock body 1.

During door-lock opening, dead bolt 2 all is withdrawn in the lock body 1, and lock pawl 15 and lock slots 16 engagements remain on dead bolt 2 in the lock body 1,

In the process of closing the door, the triggering wheel 8 of flip flop equipment 3 is at first run into doorframe, its end strikes interlock lever 13 after forcing the certain strokes of triggering push rod 11 compression retracteding position springs 10 inside motions, the pulling force that interlock lever 13 overcomes arm spring 14 upwards lifts lock pawl 15 lock slots 16 that lock pawl 15 is broken away from the main slide plate 17, at this moment, master's lock slide plate 17 drive dead bolt 2 under the driving of main lock spring 20 stretches out the action that lock body 1 realization is locked a door automatically.

When outdoor turning the key in the lock, key twisting tapered end 5 drives center runner 18 and rotates, driving main lock slide plate 17 by lock link 19 all is withdrawn into dead bolt 2 in the lock body 1, lock pawl 15 on the interlock lever 13 of flip flop equipment 3 under the effect of return spring 10 with the main lock slide plate 17 of main latch mechanism 6 on lock slots 16 engagements, door is opened and dead bolt 2 is remained in the lock body 1.

When indoor hand opening apparatus opens the door, the handle of pulling hand gear 4, tongue 2 all is withdrawn in the lock body 1, lock pawl 15 on the interlock lever 13 of flip flop equipment 3 under the effect of return spring 10 with the main lock slide plate 17 of main latch mechanism 6 on lock slots 16 engagements, door is opened and dead bolt 2 is remained in the lock body 1.

When indoor enforcement is locked, as long as the locking switch of locking device 7 is dialled to latched position, stop block 21 just is moved to the back of main lock guide rod 22 and stops main lock slide plate 17 motions, reaches the purpose of locking.

Triggering wheel 8 usefulness pins of the present utility model are fixed in the triggering wheel box 9, trigger wheel box 9 and are connected as a single entity with triggering push rod 11.The triggering wheel 8 of colyliform can effectively relax the collision with doorframe, reduces the wearing and tearing of doorframe, noise-decreasing.Triggering wheel 8 is annular or annular.

Return spring 10 of the present utility model is sleeved on and triggers on the lever 11, and is simple in structure, reliable operation.

Interlock lever 13 of the present utility model is provided with interlock spring 14, and is reliable with the engagement of lock slots 16 to guarantee lock pawl 15.

The triggering wheel 8 of flip flop equipment 3 of the present utility model can be used softer material manufacturings such as metal, nylon or engineering plastics, to reduce wearing and tearing and the reduction noise to doorframe.

After the utility model tapered end 5 installs anti-drilling steel bushing additional, have pick-proof, anti-drilling anti-theft feature.

Installation dimension of the present utility model is the same with common door lock, can exchange with common door lock.

Claims

1, a kind of antitheft automatic locking, it comprises lock body (1), dead bolt (2), hand switch (4), tapered end (5), main latch mechanism (6), locking device (7), it is characterized in that: also have flip flop equipment (3), its structure is: the part that triggers wheel (8) is installed in outside the lock body (1), triggering wheel (8) is connecting triggering push rod (11) and return spring (10) is being housed, with the position of triggering push rod (11) back certain distance on, interlock lever (13) is installed, the afterbody of interlock lever (13) is provided with lock pawl (15), the lock slots (16) that corresponding with lock pawl (15) is on the main slide plate (17) is connecting dead bolt (2) at main slide plate (17).

2, automatic locking according to claim 1 is characterized in that: trigger wheel (8) and be fixed in the triggering wheel box (9) with pin, trigger wheel box (9) and be connected as a single entity with triggering push rod (11).

3, automatic locking according to claim 1 is characterized in that: trigger wheel (8) with being annular or annular.

4, automatic locking according to claim 1 is characterized in that: return spring (10) is enclosed within and triggers on the push rod (11).

5, automatic locking according to claim 1 is characterized in that: be provided with interlock spring (14) on interlock lever (13).

6, automatic locking according to claim 1 is characterized in that: trigger wheel (8) and can use softer material manufacturings such as metal, nylon or engineering plastics.