CN2455868Y

CN2455868Y - Magnetic lock

Info

Publication number: CN2455868Y
Application number: CN 00264476
Authority: CN
Inventors: 黄三元; 陈镇江
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-06
Filing date: 2000-12-06
Publication date: 2001-10-24
Anticipated expiration: 2010-12-06

Abstract

The utility model discloses a magnetic lock that door or drawer were used, for the security and the convenient to use that improve the magnetic lock, adopted the magnetic lock structure with the remote control switching, the magnetic lock is including installing electromagnet and the control box on the fixed frame of door or drawer, installs stress plate and one or more cipher signal transmitter that correspond the position at the activity position of door or drawer and electromagnet. The control box comprises a control circuit, the circuit is controlled by a password signal transmitter, and then the control circuit controls the magnetic coil to be electrified or not, so that the purposes of locking and unlocking the lock are achieved.

Description

The magnetic force lock

The utility model relates to a kind of lockset, especially door or the lockset used of drawer.

At present, the door lock on the market or the kind of drawer-lock are a lot, but mostly adopt mechanical lock.In February, 1998, China Patent Office disclosed a kind of " building residence intercommunication security door electromagnetic lock ", its patent No. is ZL96240383.0, the electromagnetic lock structure that this utility model has adopted cylinder lock to combine with Electromagnetic Control, it comprises cylinder lock lock body, electronicmagnetic control box, be installed in the magnechuck on the doorframe and be installed in stressed plate on the door, by with the key turns cylinder lock or press the press button of going out and control control box, the band magnetic of controlling magnechuck again whether, thereby reach the purpose that electromagnetic lock is locked or opened.The electromagnetic lock of this structure in use has the following disadvantages: the one, and cylinder lock weares and teares easily, and mutual opening rate is higher, thereby makes safety not high; Two are to use inconvenience, and owner must draw out key, rotate lockhole, could open door, especially more inconvenient at night.

The purpose of this utility model provides a kind of electromagnetic door lock safe, easy to use or drawer-lock.

For achieving the above object, the technical solution of the utility model is: the magnetic force lock comprises magnechuck and the control box that is installed on door or the drawer fixed frame, there is a stressed plate movable position and magnechuck corresponding position at door or drawer, one E shape iron is arranged in the described magnechuck, be wound with coil on the E shape iron, described magnechuck is electrically connected with control box, one code signal receiving unit is arranged on the control circuit on the described control box, described magnetic force lock also comprises one or more code signal transmitters that are complementary with this code signal receiving unit, receive transmitting of code signal transmitter by the code signal receiving unit, control circuit control magnechuck loss of excitation in the control box, thus the magnetic force lock opened.

As improvement of the present utility model, the shell of magnechuck adopts the non-magnetic material, to reduce the leakage field of locking magnechuck under the state at magnetic force.

Adopt the magnetic force lock of the utility model structure, by switching with remote control coding signal controlling lock, and the magnechuck shell of employing non-magnet material, reduced the mutual opening rate of lock on the one hand, compare with mechanical lock, mutual opening rate from ten thousand/severally be reduced to 1/100000000th, improved the safety of lock; Magnetic force lock of the present utility model on the other hand is easy to use, simultaneously, has also increased the magnetism intensity of magnechuck.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the side magnetic force lock of the present utility model scheme of installation of entering.

Fig. 2 goes out reveal magnetic force lock scheme of installation.

Fig. 3 is a magnetic force lock magnechuck scheme of installation.

Fig. 4 is a magnetic force lock magnechuck elevation.

Fig. 5 is the sectional view of magnetic force lock magnechuck.

Fig. 6 is the scheme of installation of magnechuck on drawer frame.

Fig. 7 is the scheme of installation of stressed iron in the drawer panel inboard.

Fig. 8 is the signal projector structural representation of magnetic force lock.

Fig. 9 is the circuit diagram of magnetic force lock.

Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the magnetic force lock comprises that the front is fixed on magnechuck 3 and the control box 6 on the doorframe 1, be installed in the stressed plate 7 on the door 2, described magnechuck 3 comprises sucking disk outer-shell 9, the E shape iron 8 that the non-magnetic material is made and is wrapped in coil 5 on the E shape iron 8 that E shape iron 8 and coil 5 are encapsulated in the sucking disk outer-shell 9 by filling epoxy resin.Magnechuck 3 is electrically connected with the control circuit of control box 6, and stressed plate 7 is fixedly mounted on the door 2, and its position is corresponding with magnechuck 3 when door 2 is closed, and described stressed plate 7 is a magnetic conductive material.

Shown in Figure 8, one button 10 is arranged on the code signal transmitter 11, press the button 10, the code signal transmitter can be launched the encryption high-frequency signal of setting, the code signal transmitter of this structure can be buied on market, and producing this kind code signal transmitter and be furnished with the module model as Guangdong Da Hua Electronics Factory is 9638 corresponding code signal receiving unit.Here no longer elaborate.

Fig. 9 is the control circuit figure of magnetic force lock, and control circuit is electrically connected with additional power source.A wherein ₁, A ₂, A ₃, A ₄Be NAND gate in the module of CD4011 respectively for model, when the code signal transmitter does not transmit, relay J constant close contact closure, additional power source makes electromagnetic coil 5 energisings, produce the magnetic line of force in the silicon steel sheet of E shape iron 8, at this moment if door is closed, magnechuck 3 forms closed magnetic circuit with stressed plate 7, produce strong magnetic force between stressed plate 7 and the E shape iron 8, door is locked.

When pressing the button 10 of code signal transmitter 11, the code signal transmitter is launched a kind of encryption high-frequency signal, and after the signal receiving assembly on the control circuit of control box 6 received this signal, I 0 end of 9638 pattern pieces produced electric current and passes through VD ₁To C ₁Charging makes C ₁Terminal voltage reaches the upset level of NAND gate, A rapidly ₁, A ₂Upset, A ₂The output high level.At this moment, make VT on the one hand ₁Saturation conduction, the relay J adhesive, constant close contact J disconnects, coil 5 no powers, E shape iron 8 losss of excitation, i.e. magnechuck 3 losss of excitation, the magnetic force lock is opened.Because C ₁, R ₄Form the RC delay circuit, therefore, when unclamping the button 10 of code signal transmitter 11, constant close contact J still disconnects a period of time, and the magnetic force lock still stays open state in the time of setting.Subsequently, C ₁Discharge into to a certain degree A ₁, A ₂Upset, the automatic adhesive of constant close contact, coil 5 energisings, magnechuck 3 band magnetic, the magnetic force lock keeps locking state.

Fig. 6, Fig. 7 are the structural representation of the utility model drawer with the magnetic force lock, the magnetic force lock comprises magnechuck 3 and the control box 6 that is installed in drawer frame top, be installed in the stressed plate 7 of drawer panel inside upper part, and the code signal transmitter 11 that plays the key effect, the structure of its lock, control circuit, control mode and door are phase-locked together with magnetic force, do not describe in detail here.

Claims

1, the magnetic force lock that a kind of door or drawer are used, comprise the magnechuck (3) on the fixed frame that is installed in door or drawer, the control box (6) that is electrically connected with magnechuck (3), be installed in the movable position of door or drawer, the stressed plate (7) of its position magnechuck (3) correspondence position, magnechuck (3) comprises sucking disk outer-shell (9), E shape iron core (8) and be wrapped in coil (5) on the E shape iron core, control box (6) comprises control circuit, it is characterized in that: the magnetic force lock also comprises one or more code signal transmitters (11), and a code signal receiving unit that is complementary with code signal transmitter (11) is arranged on the described control circuit.

2, magnetic force lock according to claim 1, the shell that it is characterized in that described magnechuck is the non-magnetic material.