CN2334834Y

CN2334834Y - Multi-way theft-proof alarm door lock

Info

Publication number: CN2334834Y
Application number: CN 97232281
Authority: CN
Inventors: 姚玉利; 宋国强; 李宪州
Original assignee: LEGANG HARD-WARE PRODUCTS Co Ltd LELING CITY
Current assignee: LEGANG HARD-WARE PRODUCTS Co Ltd LELING CITY
Priority date: 1997-12-23
Filing date: 1997-12-23
Publication date: 1999-08-25
Anticipated expiration: 2007-12-23

Abstract

The utility model belongs to the technical field of an anti-theft lock, and relates to a door lock with the multi-way anti-theft alarm function. The anti-theft alarm door lock is provided with a lock head 1 and a lock case 2. The lock head 1 is provided with a lock shell 35, a lock core 30 and a lock body 32. A main lock bolt 13, an auxiliary lock bolt 10 and a thumb wheel 22 are arranged in the lock case 2. A varistor sheet is arranged between the lock shell 35 and the lock body 32. The lock case 2 is provided with a travel switch 9 whose front end is provided with a contact pair 7. The lower end of the contact pair 7 is connected with an electric wire 18. The lock case 2 is provided with a travel switch 14. The utility model has the advantages of simple manufacture, low cost, high sensitivity, high safety and small power consumption.

Description

Multi-faceted burglar-proof alarm door lock

The utility model belongs to the theftproof lock technical field, is a kind of door lock with multi-faceted anti-theft alarm function.

At present, most of door lock does not have antitheft newspaper pipe function.Through inquiry, a kind of burglar-proof alarm door lock of selling on the market in the time of only to the destruction door, could produce alarm signal.The cost height of this anti-theft alarm lock, power consumption is big, to the behavior of illegally opening lock by keyhole, does not have warning function.

The purpose of this utility model is, a kind of multi-faceted burglar-proof alarm door lock is provided, and it can inform that people have broken lock catechumen to forcing open the door, saw dead bolt, bore keyhole, dial pellet shot from a slingshot, key and other violence behavior of forcing open the door being sent warning.The utility model also has the little advantage of simple, cheap, highly sensitive, the safe and reliable power consumption of manufacturing.

The technical solution of the utility model is, burglar-proof alarm door lock has tapered end 1 and lock box 2, lock housing 35 is arranged on the tapered end 1, lock core 30 and lock body 32, main dead bolt 13, secondary dead bolt 10 and thumb wheel 22 are installed in the lock box 2, piezoresistive wafer 34 or flexure strip are installed between lock housing 35 and lock body 32, travel switch 9 is installed on the lock box 2, the front end of travel switch 9 is installed the contact and is paid 7.The contact is paid terminated wires 18 7 times.Travel switch 14 is installed on the lock box 2.Two supports 11 are arranged on the travel switch 9, and mounting spring 3 between the two stands 11.

The utility model does not change the structure of existing door lock, and travel switch 9, travel switch 14, the contact that increases on the structure of existing door lock pays 7 and piezoresistive wafer 34, and it has multi-faceted anti-theft alarm function can to make the utility model.As long as have illegal chamber entrant to destroy any behavior of door or tapered end, all can cause warning.Chimes of doom can reach the 80-120 decibel.The utility model also has makes simple, cheap highly sensitive, safe and reliable, advantage that power consumption is little.

Description of drawings:

Accompanying drawing 1 is the appearance structure schematic diagram after door lock of the present utility model is installed, and accompanying drawing 2 is that A-A analyses and observe the structure for amplifying schematic diagram in the accompanying drawing 1, and accompanying drawing 3 is B-B section structure for amplifying schematic diagrames of tapered end in the accompanying drawing 1, and accompanying drawing 4 is circuit diagrams of the present utility model.

To being accompanying drawing, the utility model is described further.

Accompanying drawing 1 of the present utility model, accompanying drawing 2, attached door latch structure illustrated in Figure 3, its major part are the structures of existing door lock.1 is tapered end among the figure, the 2nd, lock box, lock housing 35 is arranged on the tapered end 1, lock core 30 and lock body 32, main dead bolt 13, secondary dead bolt 10 and thumb wheel 22 are installed in the lock box 2, piezoresistive wafer 34 or flexure strip are installed between lock housing 35 and lock body 32, travel switch 9 is installed on the lock box 2, the front end of travel switch 9 is installed the contact and is paid 7.The contact is paid terminated wires 18 7 times.Travel switch 14 is installed on the lock box 2.Two supports 11 are arranged on the travel switch 9, and mounting spring 3 between the two stands 11.Piezoresistive wafer 34 or flexure strip, on connect wires 33.Electric wire 33 and electric wire 18 all join with signals collecting comparison amplifying circuit, join with the power amplifier acoustics circuit again, produce sound equipment.Warning circuit of the present utility model can adopt any known warning circuit.When using the utility model to lock a door, pin 16 moves to right with main dead bolt 13, contacts with push rod on the travel switch 14, makes travel switch 14 closures.Simultaneously, travel switch 9 is paid 7 with the contact and is contacted because the pressure of doorframe is moved to the left, and makes the contact pay 7 closures.Warning circuit is all connected, and enters to give alarm condition.When forcing open the door, saw lock or other violence when forcing open the door behavior, travel switch 9 resets under the effect of spring force, cause and report to the police, as illegal chamber entrant, want when using key to open door lock, as long as key enters keyhole and opens, lock core 30 and lock body 32 are rotated with respect to lock housing 35 simultaneously, at this moment, lock body 32 contacts with piezoresistive wafer 34 or flexure strip, and then drive piezoresistive wafer 34 contacts with lock housing 35, produce resistance, the resistance of piezo-resistance part 34 is changed, destroy the circuit balancing state, cause and report to the police.Thereby reach anti-drilling keyhole, anti-dial pellet shot from a slingshot, anti-theft alarm functions such as keys.4 is blocks among the figure, the 5th, and spring, the 6th, pull bar, the 8th, connection sheet, the 12nd, screw, the 15th, electric wire, the 17th, finger, the 19th, reference column, the 20th, stage clip, the 21st, lead, the 23rd, jump ring, the 24th, ball, the 25th, slide block, the 26th, screw, the 27th, fulcrum, the 28th, rivet, the 29th, screw, the 31st, keyhole, the 36th, doorbell button, the 37th, piezoelectric patches.

Claims

1, multi-faceted burglar-proof alarm door lock, it has tapered end 1 and lock box 2, lock housing 35 is arranged on the tapered end 1, lock core 30 and lock body 32 are installed in the lock housing 35, main dead bolt 13, secondary dead bolt 10 and thumb wheel 22 are installed in the lock box 2, it is characterized in that: piezoresistive wafer 34 is installed between lock housing 35 and lock body 32, travel switch 9 is installed on the lock box 2, the front end of travel switch 9 is installed the contact and is paid 7.

2, according to the described multi-faceted burglar-proof alarm door lock of claim 1, it is characterized in that: travel switch 14 is installed on the lock box 2.

3, according to the described multi-faceted burglar-proof alarm door lock of claim 1, it is characterized in that: two supports 11 are arranged on the travel switch 9, and mounting spring 3 between the two stands 11.

4, according to the described multi-faceted burglar-proof alarm door lock of claim 1, it is characterized in that: the contact is paid terminated wires 18 7 times.