CN2136304Y - Safety theft-proof alarm lock for door - Google Patents

Abstract

The utility model discloses a safety theft-proof alarm lock for a door, belonging to the mechanical field. The lock tongue of a common cylinder lock is changed into dual lock tongues, the upper and the lower parts of the double lock tongues are connected together, and the middle is provided with a square hole; the interior of the square hole of the dual lock tongues is provided with a safety switch which is switched off when the lock tongue is knocked into a lock catch; the safety switch is closed when the lock tongue and the lock catch are separated. The structure of a dual safety theft-proof alarm lock for a door is that a shifting head switch is arranged on the shifting head of a cover plate controlled through the connecting rod of a rotary hole of a key; the structure of a tri-safety theft-proof alarm lock for a door is that a slide switch is arranged on the connecting plate of a lock tongue. When the safety of a lock is locked, the switch of the shifting head or the slide switch is closed; when the lock is unlocked through a key, the switch of the shifting head or the slide switch is switched off. The interior of the lock body is provided with a buzzer and a power supply, and the buzzer, the power supply and each switch form respective theft-proof alarm circuit.

Description

Safety theft-proof alarm lock for door

The insurance burglar-proof alarm door lock belongs to mechanical field.

Existing insurance pin tumbler lock majority only is that dead bolt is difficult for being pushed aside, in case and the robber opens door with other method, insurance lock is just ineffective, the existing door latch structure more complicated of being with warning function, cost is higher.The design the purpose of this utility model is: improve the insurance theftproof that improves door lock, increase warning function, make door lock have more the insurance theftproof, use safer.It is mainly constructed is on the insurance cylinder lock electronic warning system to be installed.

Its principle of dual-safety anti-theft alarm door lock is: a lamellule is installed on the shifting block of the control of the key rotating hole connecting rod on the cylinder lock cover plate, as power switch key, fix another lamellule on the shifting block next door, as the power switch seat, the lamellule on it and the shifting block is formed the shifting block power switch jointly.When with key lock being locked, the lamellule on the shifting block overlaps with the lamellule on shifting block next door, and the shifting block switch is a closure state, and when with key lock being opened, two metal sheets separates, and the shifting block switch is an off-state.Dead bolt drilled in middle one square hole at cylinder lock changes former dead bolt into disjunctor double lock tongue up and down, and a cover discharge cock system is installed in square hole of lock tongue.When dead bolt hit that into snap close is locked, discharge cock was off-state, and when dead bolt did not hit into snap close, discharge cock was closure state.Its structure is to connect with the diplopore metal sheet at the dead bolt rear portion up and down at disjunctor, in square hole of lock tongue, establish two power line terminations, establish a live metal sheet at the mains terminals back of head, this sheet metal is through on two power lines, and can on two power lines, slide front and back, contact with the power line termination or separate, the live metal sheet becomes a power switch with two power line termination mutual group like this.The live metal sheet be connected up and down mounting spring between the diplopore metal sheet between dead bolt, spring push live metal sheet slides on two power lines, makes it contact with two power line terminations, control two power line termination switches disconnect and the effects of closure thereby play.In square hole, establish the dead bolt removable cover before the discharge cock, with the protection discharge cock.A touch panel is established in the position of discharge cock live metal sheet in the relative dead bolt in snap close, when dead bolt hits in the snap close, the touch panel pushing tow dead bolt removable cover in the snap close, the live metal sheet of removable cover pushing tow discharge cock, make it to separate with two power line terminations, discharge cock is off-state.When dead bolt did not bang into snap close, the live metal sheet was connected with two power line terminations under spring action, and discharge cock is closure state.Electronic warning buzzer and power supply also are installed in lock body, discharge cock between power supply, electronic warning buzzer, shifting block switch and dead bolt are connected, constitute the electronic anti-theft warning circuit in the lock body with power line.Establish power supply in the lock body side relative and change lid, in order to take insulation measures between circuit each several part and lock body in the power supply lock in the replacing lock with snap close.

In dead bolt bangs into snap close the time, discharge cock disconnects in the dead bolt during use, on the safety lock of key with lock, makes the shifting block switch closure of key rotating hole connecting rod control, has only in the entire circuit at this moment that discharge cock disconnects in the dead bolt.If under the situation of opening the shifting block switch without key, dead bolt is separated with snap close, discharge cock closure in the dead bolt then, warning circuit is connected, and the alarm buzzing is reported to the police.When opening the lock with the key, shifting block switch disconnecting circuit under the control of keyhole connecting rod is cut off, and at this moment dead bolt separates with snap close, the discharge cock closure, but alarm can not reported to the police, and has so just played under situation about not opening the lock with the key and has opened door, the antitheft effect that alarm is reported to the police at once.

Three insurance theftproof alarm doors are locked on the principle similar to the dual-safety anti-theft alarm door lock.Its structure is to establish discharge cock in square toes insurance dead bolt, on square toes insurance dead bolt junction plate, establish the slide switch key, on the cover board the slide switch key slides into three positions of insuring and establishes the slide switch plate relatively, make itself and slide switch key form slide switch jointly, when lock being locked three insurances with key, slide switch key on the dead bolt junction plate slides into three safety position, overlaps with slide switch plate on the cover plate, makes the slide switch closure.When opening with key for 3 whens insurance, the slide switch key is with the dead bolt slide switch plate that slips away, and slide switch disconnects.Thereby play when dead bolt separates with snap close under situation about not opening the lock with the key, warning circuit is connected, the effect that alarm is reported to the police at once.Three all the other structures of insurance burglar-proof alarm door lock are identical with the dual-safety anti-theft alarm door lock with use principle.

The insurance burglar-proof alarm door lock is compared with existing insurance lock, has very big advantage.It not only has the effect of general insurance lock, and in case door is opened with other method, dead bolt and snap close break away from, and alarm will be reported to the police in buzzing, thereby makes the robber be difficult for stealing and people being set up defences easily arresting the robber, making people's property obtain better protection.

Description of drawings:

Fig. 1: dual-safety anti-theft alarm door lock

Fig. 1-1: bolt plate and buckle structure figure

Fig. 1-2: bolt plate and snap close sectional drawing

Fig. 1-3: lock cover figure

Fig. 2: three insurance burglar-proof alarm door locks

Fig. 2-1: bolt plate overall structure figure

Fig. 2-2: bolt plate figure

Fig. 2-3: safeguard figure

Fig. 2-4: lock cover figure

The drawing reference numeral explanation:

(1)--dead bolt (2)--discharge cock (3) in the dead bolt--removable cover

(4)--snap close (5)--touch panel (6)--lock cover

(7)--shifting block (8)--shifting block switch (9)--A B link

(10)--power supply (11)--electronic buzzer (12)--dead bolt

(13)--discharge cock (14)--square toes dead bolt (15)--removable cover

(16)--slide switch key (17)--lock cover (18)--slide switch plate

Claims (4)

1, (two) insurance burglar-proof alarm door lock is made of: dead bolt, snap close, lock cover, shifting block, power supply, electronic buzzer, it is characterized in that: in dead bolt, establish the dead bolt discharge cock, and in dead bolt, establish removable cover before the discharge cock, on shifting block, establish the shifting block switch, and in snap close relatively in the dead bolt position of discharge cock establish touch panel in the snap close.

2, insurance burglar-proof alarm door lock according to claim 1, it is characterized in that: (in the dual-safety anti-theft alarm door lock) shifting block switch can be replaced by the slide switch that slide switch key on the dead bolt junction plate and slide switch plate are formed, and set up the square toes dead bolt, discharge cock in the dead bolt is located at (i.e. three insurance burglar-proof alarm door locks) in the square toes dead bolt.

3, according to claim 1,2 described insurance burglar-proof alarm door locks, it is characterized in that: discharge cock, shifting block switch (or slide switch) order are electrically connected in power supply, electronic buzzer, the dead bolt.

4, according to claim 1,2 described insurance burglar-proof alarm door locks, it is characterized in that: discharge cock is made of live metal sheet that can slide on two power lines and two power line terminations in the dead bolt.Dead bolt is the middle double lock tongue of disjunctor up and down that square hole is arranged, and the shifting block switch is controlled by key rotating hole connecting rod.

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