CN2258905Y

CN2258905Y - Electronic lock having concealed cipher and key with cipher

Info

Publication number: CN2258905Y
Application number: CN 95220034
Authority: CN
Inventors: 刘夜声
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-23
Filing date: 1995-08-23
Publication date: 1997-08-06
Anticipated expiration: 2005-08-23

Abstract

The utility model relates to an electronic lock with a concealed cipher and a key with a cipher, which is a novel electronic lock by utilizing a cipher contact point to realize switching on and switching off. A rotary unlocking handle of the lock is arranged between a tight loop and a lock core with the cipher contact point. An insulator of the lock core is provided with a hole with the cipher. A movable contact point which is connected with a transistor switching circuit of the electronic lock is arranged on the inner wall of the hole. When the electronic lock with a concealed cipher and a key with a cipher is used, the lock can be unlocked only by inserting the lock core of the lock with a correct cipher key to rotate the unlocking handle then. The lockset which has the advantages of high confidentiality, stable and reliable performance, compact conformation, low manufacturing cost, convenient operation, etc. can be arranged on various doors, cabinets, and automobiles to use.

Description

The key of the electronic lock of hidden password and band password

The utility model is the key about the electronic lock of hidden password and band password.

Traditional cylinder lock is that pellet shot from a slingshot group different in size is arranged in lock core and the lock core cover, lock core is blocked and reaches the purpose of lock.This lock, except can opening with original key, its principle of a GPRS is used someway, and two docking points of every group of pellet shot from a slingshot and the flat straight line of rotatable lock core cylindrical rotary locking cylinder this moment can be opened lock.Thus, cylinder lock non insurance very.In addition, the key of cylinder lock also is easy to be duplicated by human die or other method.Therefore, just used electronic lock in certain occasion of having relatively high expectations.Yet common electronic lock is the opening ways of numerical ciphers, and its password also is easy to divulge a secret.If adopt the opening ways of other nonnumeric password, though can improve safety factor,, because its structure is corresponding much complicated, cost cost height is so be difficult to popularization and application.

The purpose of this utility model is to provide a kind of electronic lock of hidden password and the key of band password.The utility model has been taked following technical measures: the electronic lock of this hidden sign indicating number mainly by lock core, the electromagnetism bayonet lock of transistor switching circuit, band password contact, rotates compositions such as unlocking handle, dead bolt and lock body.The rotation unlocking handle of this lock is arranged between the lock core of tight loop and band password contact, and the rotation unlocking handle becomes to be slidingly matched with the lock core of tight loop with band password contact, the rearward end of described lock core is installed with on the inwall of tight loop rearward end, this lock core is an isolator, in this isolator, have a key hole that only can insert a band password, on the inwall of this jack, also be provided with the armature contact that is connected with the transistor switching circuit of electronic lock.The key of band password is arranged on the insulating slab by the contact of many on-offs, and corresponding one by one with armature contact on the described lock core key jack inwall.

The key of the electronic lock of the hidden password of the utility model and band password in use, as long as will have the lock core that inserts this lock with the corresponding cipher key of the transistor switching circuit of electronic lock, when connecting power supply, connect transistor switching circuit, start the electromagnetism bayonet lock, at this moment, at circuit official hour inward turning turn-off lock handle, can open the electronic lock of the hidden password of the utility model.Because password contact on the lock core of this lock and password contact on the key are logical and disconnected all to be concealed type, so, insurance is higher, and the key of the electronic lock of hidden password of the present utility model and band password also has advantages such as novelty stable and reliable for performance, simple in structure, cost cost are low and easy to use, can be widely used in occasions such as various dwelling houses, warehouse, safety cabinet.

Below with reference to the accompanying drawings the electronic lock of the hidden password of the utility model and the key of band password are done detailed explanation:

Figure (1) is the electronic lock front schematic view of the hidden password of the utility model.

Figure (2) is the lock core cross-sectional schematic of the electronic lock of the hidden password of the utility model.

Figure (3) is the schematic perspective view of the key of the utility model band password.

Figure (4) is the A-A generalized section of the key of figure (3) band password.

Figure (5) is the circuit theory diagrams of the electronic lock of the hidden password of the utility model.

In figure (1), the 1st, the tight loop of this electronic lock, when installing and using, the base plate that the rearward end of this tight loop 1 penetrates door-plate and lock body (figure slightly) is fastened on lock body on the door-plate, the centre of tight loop 1, be provided with the lock core 3 of rotatable unlocking handle 2 and band password contact, handle 2 is slidingly matched for 1 one-tenth with lock core 3 and tight loop, lock core 3 is not with handle 2 rotations when unblanking, the rearward end of described lock core 3 is installed with on the inwall of tight loop 1 rearward end, this lock core 3 is isolators, have a jack 4 that only can insert the key of a band password in the centre of this isolator, from the lock core sectional view of figure (2), can see, on the inwall of this jack 4, also be provided with the armature contact 5 that is connected with the transistor switching circuit (figure slightly) of electronic lock, be provided with a back-moving spring 6 at the back side of each armature contact 5, the transistor switching circuit of described electronic lock is arranged in the lock body at lock core 3 back sides.

On the insulated substrate 7 of figure (3), be respectively arranged with the fixed contact 8 of conducting and the fixed contact 9 that disconnects, from the A-A sectional view (4) of figure (3), can see, the length of the fixed contact 8 of conducting equates with the thickness of insulated substrate 7, and penetrate two surfaces up and down of insulated substrate 7, the fixed contact 9 that disconnects respectively is arranged on respectively on two surfaces of insulated substrate 7 symmetrically, and be not communicated with mutually, on the insulated substrate 7 position of all contacts all with the inwall of the key hole 4 of the lock core 3 of figure in (2) on armature contact 5 corresponding one by one.

Shown in figure (5), in the circuit theory diagrams of the electronic lock of the hidden password of the utility model, be respectively arranged with transistor unlock circuit, shut-off circuit and delay closing circuit.Wherein, unlock circuit is by triode BG ₃, BG ₄, diode D and resistance R ₃, R ₄, the electromagnetism bayonet lock coil ZD and constant open contact K ₁, K ₂, K ₃Form.This circuit from the positive pole of power supply to triode BG ₃Base stage between, series connection is connected to resistance R ₃, constant open contact K ₁, positive best three BG of power supply ₃Inter-collector, series connection is connected to resistance R ₄, triode BG ₃Emitter stage to triode BG ₄Base stage series connection be connected to normal battle of K ₂, BG ₄Colelctor electrode to the positive interpolar of power supply, series connection is connected to the coil ZD of electric magnetic card pin, is connected to a protection diode D at the two ends of ZD, the positive pole of this diode D meets BG ₄Colelctor electrode, the negative pole of diode D connects the positive pole of power supply, BG ₄Emitter stage between the negative pole of power supply, series connection is connected to normal battle of K ₃Shut-off circuit is by resistance R ₁, R ₅, constant open contact K _mWith triode BG ₁Form, wherein, triode BG ₁Base stage pass through resistance R ₁Connect the positive pole of power supply, BG ₁Emitter stage by normal battle of K _mConnect the negative pole of power supply, K _mBe to be formed in parallel by a plurality of constant open contacts, triode BG ₁Colelctor electrode pass through resistance R ₅Meet triode BG ₃Base stage.Delay closing circuit is by resistance R ₂, R ₆Capacitor C and triode BG ₂Form.Wherein, resistance R ₂And R ₆Series connection, R ₂The positive pole of another termination power, R ₆The negative pole of another termination power, R ₆Two ends also and be connected with capacitor C, R ₂With R ₆Interface meet triode BG ₂Base stage, BG ₂Emitter stage connect the negative pole of power supply, BG ₂Colelctor electrode meet BG ₃Base stage.

When using the electronic lock of hidden password of the present utility model,, be arranged on normal battle of the K that logical on the key contact can be connected this latching transistor on-off circuit respectively as long as will insert in the lock core of this lock with this corresponding key in lock cipher contact and connect power supply ₁, K ₂And K ₃, at this moment, triode BG ₃, BG ₄Conducting, electromagnetism bayonet lock electromagnet ZD and closing, and then the rotation unlocking handle can drive dead bolt and opens this lock.When key insertion connection power supply was unblanked, capacitor C began charging, and delay closing circuit picks up counting, when the charging of the two ends of capacitor C finishes to make triode BG ₂During saturation conduction, BG ₃Base potential descend until BG thereupon ₃End BG ₄Also end, electromagnet ZD discharges.This moment entire circuit the operating current minimum, several milliamperes approximately, thus using electricity wisely.

In addition, in the lock core of this lock, remove normal battle of K ₁, K ₂, K ₃Many constant open contact K also are set outward, _mIf its password contact arrangement of key of inserting this lock is wrong, make normal battle of K _mConducting, BG ₁It is conducting.Because R ₅Resistance very little, BG ₃Current potential just very low, make BG ₃End BG ₄Also end, the coil ZD of electromagnetism bayonet lock can't adhesive, and the rotation unlocking handle is blocked and can not be rotated by bayonet lock, and lock is not opened.Because the contact on-off that is provided with on the key of band password all can't be seen, sample all exteriorly gets on, its contact that breaks is many more than the contact of conducting, and the armature contact that is provided with on the lock core is all on the inwall of key hole, can't see from the outside, therefore, this lockset has higher confidentiality.In addition, this lock can also be set up devices such as burglar alarm, electronic door bell as required to adapt to various occasions.

The electronic lock of the hidden password of the utility model can use dry cell or external direct current power supply.

Claims

1, the electronic lock of the hidden password formed such as a kind of lock core by transistor switching circuit, band password contact, rotation unlocking handle, electromagnetism bayonet lock, dead bolt and lock body is characterized in that: the rotation unlocking handle of this lock is arranged on tight loop and is with between the lock core of password contact, the lock core of described band password contact is an isolator, in this isolator, have the hole that only can insert the key of a band password, on the inwall in this hole, also be provided with the armature contact that is connected with the transistor switching circuit of electronic lock.

2, a kind of key of band password of the electronic lock of opening hidden password is characterized in that: described key is an insulating slab, above the piece insulating slab, is provided with the hard contact of three on-offs at this at least.