CN2177066Y - Automatic safety spring door lock - Google Patents

Abstract

The utility model relates to an automatic safety spring door lock, when a door is closed conveniently, a safety lock bolt flips into a lock hole. The shaft (16) of the lock bolt (1) is sheathed with a U-shaped frame (7), the column pin (18) of the connecting plate (15) of the lock bolt (2) is sheathed with forks (3), one fork can extend between the shaft (16) and the frame (7), and the other fork can follows the lock bolt (1) returning to turn the card heads (14) of the controlling cards (2) of the lock bolt (2) to mutually hit. A spring (10) is sheathed between the end of the connecting plate and a lock case. A rotary shaft (5) is penetrated on the connecting plate side of the lock body, the rotary shaft extends out an outer case onto the outside of the door, the end of the rotary shaft is equipped with a groove (12), the rotary shaft is equipped with an L-shaped blocking ear (17) that can be fastened mutually with the side convex body (8) of the connecting plate.

Description

Automatic safety spring door lock

The utility model relates to a last built-in lock, belongs to a kind of voluntary insurance pin tumbler lock.

Built-in lock on the door also has dual fail-safe pellet shot from a slingshot door built-in lock.Dual fail-safe pellet shot from a slingshot door built-in lock, it has two dead bolts (as shown in Figure 11,2); Wherein dead bolt 1 is for often leaning out dead bolt, and dead bolt 2(insures dead bolt) be to lean out lockhole on the access door frame under the key effect, must under the key effect, return again.The dead bolt 1 of generally shutting the door after you just enters the doorframe hole of locking with self axle upper spring under the bounce effect, owner is owing to worry or carelessness when then not making dead bolt 2 enter doorframe to lock the hole with key again, there is not safety effect, available yielding thin plate is inserted into dead bolt 1 from crack between a door and its frame, firmly a pulling door upper handle can make dead bolt return door is opened repeatedly, in this situation is unsafe, and stolen incident easily takes place.Though Here it is the problem of insuring dead bolt 2 and can not leaning out insurance is automatically arranged.

It is not enough that the purpose of this utility model is to avoid in the above-mentioned prior art, the insurance dead bolt can be ejected automatically enter the lock voluntary insurance pin tumbler lock in hole of doorframe and provide a kind of with the process of closing the door, and helps user's safety.

The purpose of this utility model can reach by the following technical programs: on the axle of double lock tongue built-in lock dead bolt (1) " U " type framework (7) is housed, be equipped with on the connecting plate pin (18) of dead bolt (2) and dial hairpin (3), gap location between the axle that one hairpin end of dialling hairpin can extend into dead bolt (1) and the framework (7), another strand end can with dead bolt (1) return and rotate on the control card (4) with dead bolt (2) kayser (14) mutually percussion contact.Be installed with rotating shaft (5) at lock body in the connecting plate side of dead bolt (2), rotating shaft (5) is stretched out inside and outside shell to face outdoors, this axle head fluted (12); There is (L) type blocked ear to block mutually in the connecting plate one side rotating shaft with connecting plate side convex body (8).

Above-mentioned axle (16) is gone up can groove, and one end of group hairpin can stretch into this groove, wherein dials hairpin and can be two strands of hairpins greater than 90 °, and per share is tabular.

The utility model is compared above-mentioned prior art can have following advantage: dial hairpin (3) owing to be with on the connecting plate pin (18) of dead bolt (2), one that dial hairpin return and rotated around pin with dead bolt (1), make dial another strand of hairpin end in rotation process can with bayonet lock (14) on the control card (4) of control dead bolt (2) in lock housing mutually percussion take off card, dead bolt (2) is ejected in the fall back process of closing the door with dead bolt (1) enter the doorframe hole of locking, realization is shut the door after you and insurance dead bolt (2) is leant out automatically enter lockhole, must with the rotation of key insertion lock core dead bolt (2) not leant out again and enter lockhole, promptly shut the door after you and make dead bolt (2) enter safety position, reduce the insurance process, favourable user's safety.

Fig. 1 is the utility model lock inner structure diagrammatic sketch;

Fig. 2 is rotating shaft on Fig. 1 (a 5) diagrammatic sketch;

Fig. 3 is that U type framework (7) launches plan view on Fig. 1;

Fig. 4 is converted into U type framework (7) diagrammatic sketch on Fig. 1 by Fig. 3;

Fig. 5, the 6th, master, the vertical view of group hairpin (3) on Fig. 1;

Fig. 7, the 8th, the connecting plate (15) of Fig. 1 upper lock tongue (2) is main, vertical view;

Fig. 9, the 10th, master, the vertical view of control card on Fig. 1 (4).

Double lock tongue (1,2) built-in lock, wherein dead bolt (1) is for often leaning out dead bolt, and in the process of shutting the door after you, this dead bolt is return and is ejected with self axle upper spring bounce and enters lockhole; Dead bolt (2) is the dead bolt in the normally closed lock, and what be connected as a single entity with dead bolt is connecting plate (15), and there is sawtooth both sides on the plate; The control card (4) that joins on one side sawtooth and the connecting plate is gone up bayonet lock (head) engagement locks in the lock body dead bolt (2)).

Below in conjunction with accompanying drawing will the utility model is described in further detail:

By shown in Figure 1, on the axle (16) of dead bolt (1), be with " U " type framework (7), on axle (16), can suitably shorten the length of spring section, between two end axles, be with " U " type framework (7), shown in Fig. 3,4, wherein Fig. 3 is that " U " type framework launches plan view, between framework and the axle end play is arranged.The connecting plate (15) of dead bolt (2) has pin (13), the former group card (6) that dead bolt (1) is return that is equipped with on the pin, and the utility model is to be with to dial hairpin (3) on the another side pin (18) of connecting plate; Show to dial that by Fig. 6 two strands of hairpins that separate are arranged on the hairpin, one hairpin end can stretch into the end play that forms between axle (16) and the framework (7), and this strand hairpin can have slip in the gap; Bayonet lock (14) on the control card (4) that another strand hairpin is terminal and dead bolt (2) is top acts on mutually, and when returning with dead bolt (1), this strand hairpin end can clash into bayonet lock (14) disengaging engagement when group hairpin was rotated with pin (18); Shock mount (10) outside connecting plate (15) terminal (9) and between lock housing again, at this moment out-of-gear connecting plate (15) can eject under the spring force effect, make connecting plate end dead bolt (2) enter the doorframe hole of locking, controlled after dead bolt (2) is return.Be installed with rotating shaft (5) at lock body in connecting plate (15) side, rotating shaft is fixed on the about lock housing and stretches out shell, extends outward outdoors on the face.These two ends fluted (12) have L type blocked ear (17) to block mutually with connecting plate side convex body (8) in the rotating shaft of connecting plate place.

Above-mentioned axle (16) is gone up cover " U " type framework (7) and is located to have axially saturating groove (not shown), and one hairpin end of dialling hairpin (3) can stretch into this groove.Dial hairpin (3) and can be two strands of hairpins greater than 90 °, per share is tabular.

The insurance process: when at closing time, dead bolt (1) is advanced in the lock by bullet, owing on the dead bolt (1) " U " type framework (7) is housed, drives group hairpin (3) bayonet lock (14) on the control card (4) is separated with dead bolt (2).Dead bolt (2) ejects under the effect of spring (10) in the lock, and dead bolt (1) recovers ejected position, inserts in the frame hole together with dead bolt (2), plays the purpose of automatic dual fail-safe.

When opening the door, as long as turn lock core two encloses outside, dead bolt (2) will be retracted in the lock, and turn rotating shaft (5) simultaneously, dead bolt (2) is gone up the convex body (8) at place, is blocked by rotating shaft (5), continue the screw key half-turn, dial card (6) drive dead bolt (1) and return in the lock, door is opened.In the time need not insuring, dead bolt (2) is ejected in the lock, can make rotating shaft (5) block convex body (8), at this moment have only dead bolt (1) to play the effect of locking a door.When door was insured by built-in lock, turn rotating shaft (5) can not cut any ice again separately.

Claims (3)

1, a kind of voluntary insurance pin tumbler lock that constitutes on the double lock tongue built-in lock is characterized in that:

1), on the axle (16) of dead bolt (1), is with " U " type framework (7); Be with on connecting plate (15) pin (18) of dead bolt (2) and dial hairpin (3); One hairpin end of dialling hairpin can stretch into gap between axle (16) and " U " the type frameworks (7), another strand end can be return and rotates bayonet lock (14) percussion contact mutually on the control card (4) with dead bolt (2) with dead bolt (1), and between connecting plate (15) end and lock housing shock mount (10).

2), be installed with rotating shaft (5) at lock body in connecting plate (15) side, inside and outside shell is stretched out in rotating shaft (5), and is outer to face outdoors, these two ends fluted (12); Connecting plate is in has " L " type blocked ear (17) to block mutually with connecting plate side convex body (8) on the rotating shaft axle.

2, door lock according to claim 1 is characterized in that: axially saturating groove can be arranged on the axle (16), and one end of dialling hairpin (3) can stretch into this groove.

3, door lock according to claim 1 is characterized in that: group hairpin (3) can be two strands of hairpins greater than 90 °, and per share is tabular.

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