CN2073913U

CN2073913U - Double throw safety electromagnetic lock

Info

Publication number: CN2073913U
Application number: CN 90222890
Authority: CN
Inventors: 穆润生; 刘楠松
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University; Xian Jiaotong University
Priority date: 1990-11-05
Filing date: 1990-11-05
Publication date: 1991-03-27

Abstract

The utility model discloses a double throw safety electromagnetic lock. A cam pin, a guide groove, pin holes, a tongue pin and an electric magnet are arranged in an existing three-insurance mechanical locking head provided with an encryption circuit and a magneto-key. The electromagnetic insurance is realized when the tongue pin falls into the pin hole, if the lock is needed to be opened at the moment, the magneto-key must be in alignment with the encryption circuit in order to cause the electromagnetic coil to be electric, and a mechanical key can be used for opening the lock after that the tongue is attracted up. The utility model is especially suitable for the occasion that the lock can only be provided with the presentation of two persons, such as a dollar case, a strongbox, a storehouse, etc., and the utility model can be applied to the common family.

Description

Two insurance electromagnetic locks of opening

The utility model relates to a kind of improved electromagnetic lock, particularly a kind of presetting cipher position arbitrarily, the noncontact of magnetic key unblank contact with general key unblank to combine pair drive the insurance electromagnetic locks.

Existing electromagnetic lock is mainly by the tractive magnet of unblanking, and the various cryptochannels of dead bolt are formed.Its deficiency is that operating current is big, and password is not hidden, random preset position.

The purpose of this utility model provides that a kind of cryptochannel is hidden, operating current is little, and carry out noncontact with the magnetic key and unblank to contact with general key a kind of pair of unblanking to combine and drive the insurance electromagnetic locks.

The utility model is achieved in that in the mechanical lock of existing three insurances and has installed cam pin, guide groove, pin-and-hole, tongue pin and electromagnet additional.Be furnished with cryptochannel of forming by tongue tube, triode, lead, power supply and the magnetic key that is complementary with cryptochannel in addition.Cryptochannel links to each other with electromagnet by lead, and cryptochannel can be arranged on last any position like this.Reach hidden purpose.When locking a door, after the mechanical key of preparing with former mechanical lock carries out locking, the cam pin that is installed on the tongue palm sheet withstands guide rail, be arranged on the pin-and-hole and the dislocation of tongue pin of tongue palm sheet top, the tongue pin can not fall in the pin-and-hole, the electromagnetism insurance is inoperative, this moment is again with the suitable end that is screwed to of mechanical key, because the rotation jack-up cam pin of cam, tongue palm sheet is owing to the spring action in the former lockhole is advanced to maximum position, and at this moment the tongue pin falls in the pin-and-hole just, thereby fix moving forward and backward of tongue palm sheet, the dead bolt that is driven by tongue palm sheet also is fixed, and can not unblank with mechanical key this moment, reach the electromagnetism insurance mouthful.In the time of must unblanking after the electromagnetism insurance, earlier with the position of tongue tube in the magnetic key alignment cryptochannel, circuit turn-on also makes electromagnet that the tongue pin is picked up from pin-and-hole by lead, and then unblank with mechanical key.

The utility model compared with prior art main feature is: (1) cryptochannel is the magnetoelectricity combination, and is connected with electromagnet by lead, so cryptochannel can be installed in a last optional position.(2). two keys are driven a lock, and magnetic key realization noncontact is unblanked.(3). need only just must switch in the moment that picks up the tongue pin, so operating current is little, reaches purpose of power saving to electromagnet.

This practicality is fit to important insurance facility needs two people such as novel national treasury, safety cabinet, the warehouse occasion that just can unblank on the scene simultaneously, and general family is also very suitable, simple to operate, easily manufactured, general Lock Factory, electrical apparatus factory all can produce, and price is equivalent to valency lock valency in two tongues.

Below with reference to accompanying drawing the utility model is further set forth:

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is a cryptologic circuit diagram of the present utility model.

Fig. 3 is magnetic Key structure figure of the present utility model.

With reference to the existing three insurance mechanical locks of Fig. 1, outermost layer is metal shell [5], dead bolt [8] is fixed on the front end of tongue palm sheet [10], by cam [16], safety plate [15], clip [9], press tongue spring [6] and guide rail [11] to control moving forward and backward of tongue palm sheet, press tongue spring one end to be connected on the retainer spring axle [7], the other end withstands dead bolt [8], and cam [16] center has keyhole.Two insurance electromagnetism lockholes of opening after the improvement are exactly that tapered end existing as the above-mentioned three insurance mechanical locks that disclose is done following improvement: the electromagnet of being made up of tongue pin [1], line bag [2], iron core [3] and the magnetic circuit brandreth [4] of double as electromagnet armature is installed between shell [5] and dividing plate [18].Tongue pin [1] is installed online bag [2] frame center, and can conduct oneself with dignity betwixt to lower slider, upwards slides under the electromagnetic attraction effect.Top at tongue palm sheet [10] has lockhole [17], and its aperture has guide groove [12] than the big 1-2mm of diameter of tongue pin [1] in the below that tongue is slapped sheet [10], can slide in guide groove [12] in cam pin [13] lower end, and the upper end is connected with safety plate [15] by spring [14].

With reference to Fig. 2. because the cryptochannel that reed pipe [21]-[27], triode [20], resistance [19], power supply and lead are formed by connecting is established tongue tube and disconnected " 1 ", closure is " 0 ".Password shown in Figure 2 is 0010101, changes a sign indicating number arbitrarily and all can not make triode [20] conducting.Cryptochannel is connected with electromagnet by lead, so any position that the cryptochannel installation site can be on door.

With reference to Fig. 3. the magnetic key is to be arranged to be set on the pad of being made by exhausted magnetic material [32] by the password requirement of tongue tube by permanent magnet [28]-[31] to form, and the N of magnet, S extreme direction are consistent with the tongue tube length direction.

When locking a door, if must not insure by electromagnetism, its method of operating and common three insurance machineries are phase-locked together.If must insure by electromagnetism, after then elder generation is screwed to the insurance position with mechanical key, again along being screwed to the end, this moment cam [16] jack-up cam pin [13], tongue palm sheet [10] is advanced to maximum position under pressure tongue spring [6] effect, at this moment tongue pin [1] falls into pin-and-hole [17], realizes the electromagnetism insurance.At this moment unblank must be earlier with the magnetic key near and aim at corresponding tongue tube [21]-[27], make triode [20] conducting, at this moment electromagnet coil has electricity, and tongue pin [1] is picked up from pin-and-hole [17], twists and can unblank with mechanical key again.

Claims

1. improved pair of a standard machinery lock of mainly being made up of shell, pressure tongue spring, retainer spring axle, dead bolt, clip, guide rail, safety plate, tongue palm sheet and cam is driven the insurance electromagnetic locks.It is characterized in that: tongue palm sheet [10] top has lockhole [17], and the below has guide groove [12], can slide in guide groove [12] in cam pin [13] lower end, and the upper end is connected with safety plate [15] by spring [14]; Tongue pin [1] is an electromagnet armature, and electromagnet is installed between shell [5] and the dividing plate [18] and by lead and links to each other with the logic cryptochannel.

2. drive the insurance electromagnetic lock for according to claim 1 pair, it is characterized in that: when cam pin [13] withstood guide rail [11], tongue pin [1] did not fall into pin-and-hole [17].

3. drive the insurance electromagnetic lock, it is characterized in that for according to claim 1 pair: electromagnet is made of tongue pin [1], line bag [2], iron core [3] and magnet frame [4], and tongue pin [1] is installed online bag [2] frame center, and can slide up and down betwixt.

4. drive the insurance electromagnetic lock for according to claim 1 pair, it is characterized in that: the aperture of pin-and-hole [17] is than the big 1-2mm of diameter of tongue pin [1].

5. drive the insurance electromagnetic lock for according to claim 1 pair, it is characterized in that: cryptochannel connects into circuit by tongue tube [21]-[27], triode [20], resistance [19], power supply and lead.

6. improved magnetic key is characterized in that: the magnetic key is to be set on the pad of being made by exhausted magnetic material [32] by permanent magnet pieces [28], [29], [30], [31].

7. magnetic key according to claim 6 is characterized in that: the N of each permanent magnet pieces, S extreme direction are consistent with cryptochannel tongue tube length.