CN201953176U

CN201953176U - Antitheft door lock

Info

Publication number: CN201953176U
Application number: CN2011200106559U
Authority: CN
Inventors: 张程
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-14
Filing date: 2011-01-14
Publication date: 2011-08-31
Anticipated expiration: 2021-01-14

Abstract

The utility model discloses an antitheft door lock, which is characterized by comprising a magnetic key, a bolt, a housing, a lock cylinder, a contact switch, a lead, a power source, a toggle switch and a loudspeaker. A circuit comprising the two switches is disposed in the housing, the contact switch, the power source, the toggle switch and the loudspeaker are sequentially serially connected onto the circuit, the contact switch is positioned at the tail end of the lock cylinder, a movable contact of the contact switch is made of iron, and a toggle piece of the toggle switch is mounted on the section of the lock cylinder. After locking, the contact switch is switched on, the toggle switch is switched off, current is switched on if a thief switches on the toggle switch by rotating the lock cylinder by the aid of a master key, and the loudspeaker makes a sound to alarm. When the matched magnetic key is used, the toggle switch is switched on after the lock cylinder rotates, the current is switched off by the aid of the movable contact of the contact switch under the action of the magnetic force of the key, and the loudspeaker cannot alarm.

Description

A kind of safe-guard door lock

Technical field

The utility model relates to a kind of lock, especially a kind of safe-guard door lock.

Background technology

House fitting-up at present generally all can be used security door, security door is compared conventional door and is not easy to be pried open by rigid because of its structural characteristics, most safe-guard door lock all is mechanical on the market, realize the folding of lock by frame for movements such as springs, this locking make and use all comparatively convenient, but current lawless person's majority can carry the unlocking tool of master key and so on or lockset is had research, reach the purpose of opening the door and stealing by opening lock core, the utility model is provided with machinery and magnetic force structure dual fail-safe and added alarming horn, and open method is the same simple with the unlatching common lock when using original-pack magnetic key.

Summary of the invention

A kind of safe-guard door lock is characterized in that: device is made up of magnetic key, dead bolt, case, lock core, contact switch, lead, power supply, plectrum switch, loudspeaker, and a circuit that comprises two switches is arranged in the case, the contact switch of connecting successively on the circuit, power supply, plectrum switch, loudspeaker; Contact switch is positioned at the lock core end, and the movable contact of contact switch is an irony; The plectrum of plectrum switch is installed on the lock core cross section.The back contact switch closure of locking, the plectrum switch disconnects, if the thief makes the plectrum switch closure with the master key rotational lock core, then electric current connection, the loudspeaker warning that pipes; And use supporting magnetic key, though plectrum switch closure behind the rotational lock core, the movable contact of contact switch turn-off current under the magneticaction of key, loudspeaker can not reported to the police.

Beneficial effect: when the utility model is realized the lockset dual fail-safe, kept it and had the ease of use of common lockset, promptly safety is convenient again.

Description of drawings

Fig. 1 is a kind of theft-proof door lock structure schematic diagram of the utility model example.

Fig. 2 is that the utility model example is pried open the effect schematic diagram.

Fig. 3 is the utility model effect schematic diagram of normally unblanking.

The specific embodiment

The explanation of mark among Fig. 1: magnetic key 1, dead bolt 2, case 3, lock core 4, contact switch 5, lead 6, power supply 7, plectrum switch 8, loudspeaker 9, plectrum 10.

A kind of safe-guard door lock shown in Figure 1 installs by magnetic key 1 dead bolt 2, case 3, lock core 4, contact switch 5, lead 6, power supply 7, plectrum switch 8, loudspeaker 9 are formed, a circuit that comprises two switches is arranged, the contact switch 5 of connecting successively on the circuit, power supply 7, plectrum switch 8, loudspeaker 9 in the case 3; Contact switch 5 is positioned at lock core 4 ends, and the movable contact of contact switch 5 is an irony; The plectrum 10 of plectrum switch 8 is installed on lock core 4 cross sections.

Referring to Fig. 1, back contact switch 5 closures of locking, plectrum 10 is positioned at lock core 4 left sides, and plectrum switch 8 disconnects, and electric current is obstructed, and loudspeaker 9 can not reported to the police.

Referring to Fig. 2, if the thief makes plectrum 10 forward the right to master key rotational lock core 4, plectrum switch 8 closures, then electric current is connected, loudspeaker 9 warning that pipes.

Referring to Fig. 3, when normally unblanking, use supporting magnetic key 1, though rotational lock core 4 back plectrum switch 8 closures, the movable contact of contact switch 5 is turn-off current under the magneticaction of key, loudspeaker 9 can not reported to the police.

Claims

1. a safe-guard door lock is characterized in that: install and be made up of magnetic key, dead bolt, case, lock core, contact switch, lead, power supply, plectrum switch, loudspeaker, a circuit that comprises two switches is arranged in the case, the contact switch of connecting successively on the circuit, power supply, plectrum switch, loudspeaker; Contact switch is positioned at the lock core end, and the movable contact of contact switch is an irony; The plectrum of plectrum switch is installed on the lock core cross section.