CN201173013Y

CN201173013Y - Electromagnetic lock

Info

Publication number: CN201173013Y
Application number: CNU200820043603XU
Authority: CN
Inventors: 洪涛
Original assignee: GUANGZHOU JIJIA INFORMATION TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU JIJIA INFORMATION TECHNOLOGY Co Ltd
Priority date: 2008-01-30
Filing date: 2008-01-30
Publication date: 2008-12-31
Anticipated expiration: 2018-01-30

Abstract

The utility model discloses an electromagnetic lock, which comprises a lock frame, an electromagnetic coil, a magnetic conduction iron core with an iron core offsetting spring, a lock-tongue and a lock clamp, wherein the lock-tongue is in a sheet-like shape and is provided with a lock clamp slot which is used for clamping with the lock clamp, a locking projection which is used for clamping with the magnetic conduction iron core, and a positioning projection which is used for limiting the rotating stroke of the lock-tongue, wherein the lock-tongue is installed on one end of the magnetic conduction iron core through a suspension arm which is perpendicular to a sheet-like plane of the lock-tongue, the locking projection is clamped with one end of the magnetic conduction iron core, the lock clamp slot is oppositely arranged with the lock clamp, a lock-tongue offsetting spring is sleeved outside the suspension arm, one end of the lock-tongue offsetting spring is connected with the lock-tongue, and the other end is connected with the lock frame. The electromagnetic lock of the utility model has the advantages of small lock body volume of the whole electromagnetic lock, small installing space, simple and fast structure, good safety and wide application.

Description

A kind of electromagnetic lock

Technical field

The utility model relates to electromagnetic lock, especially the electromagnetic lock used of electronic locker.

Background technology

Various electromagnetic locks are arranged on the market, and mostly complex structure, volume are big.The patent No. is the Chinese utility model patent of ZL93244393.1, a kind of Electromagnetic lock is disclosed, its dead bolt is the conducting magnet core of being located in the Electromagnetic lock, dead bolt is provided with and can makes dead bolt retainer spring that resets and the location jump ring that limits the dead bolt shift length, the dead bolt afterbody is located in the electromagnetic coil, the Electromagnetic lock rear end is provided with magnetic conductive cover, and pintle hook lock is provided with the groove that can cooperate with the dead bolt front end.This electromagnetic lock when mounted, dead bolt and pintle hook lock two all need bigger installing space.

The utility model content

The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of electromagnetic lock is provided, and it is simple in structure, and volume is little, the electromagnetic lock that installing space is little.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: electromagnetic lock of the present utility model comprises lock frame, electromagnetic coil, the conducting magnet core that has iron core return-spring, dead bolt and pintle hook lock; Described dead bolt has a locking trough that is used for fastening with pintle hook lock, one and is used for locking projection and a locating convex block that is used to limit dead bolt revolution stroke of fastening with conducting magnet core in the form of sheets; Dead bolt is installed on an end of conducting magnet core by a cantilever perpendicular to its sheet plane, and described locking projection and conducting magnet core one end fasten, and described locking trough is mutually opposed with pintle hook lock; Cantilever is with a dead bolt back-moving spring outward, and an end of this dead bolt back-moving spring is connected with dead bolt, and the other end is connected with the lock frame.

As a kind of preferred version, the end of described conducting magnet core is the inclined-plane; One side of described locking projection is that radius becomes big rounding off limit gradually, and opposite side is the ladder sudden change limit that radius diminishes suddenly.When pintle hook lock and dead bolt mutually during closing, dead bolt rotates around cantilever, described rounding off limit makes conducting magnet core indentation in the electromagnetic coil with the inclined-plane that becomes big radius gradually and promote conducting magnet core, when arriving ladder sudden change limit, conducting magnet core resets under the effect of iron core return-spring, locking projection and conducting magnet core fasten, thereby make the dead bolt location, and electromagnetic lock is in locked state; When electromagnetic coil gets when electric, conducting magnet core indentation in the electromagnetic coil, dead bolt spinning reduction back under the effect of dead bolt back-moving spring, electromagnetic lock is in unlocking condition.

As another preferred version, described pintle hook lock is the cylinder that there is the support fixation pin at two ends; One side of described locking trough notch is higher than opposite side.When pintle hook lock and dead bolt closing, the cylinder pintle hook lock enters in the locking trough from locking trough notch downside, promotes the high side of notch and makes dead bolt rotate to dead bolt when being positioned around cantilever, and pintle hook lock is limited in the locking trough, thereby makes electromagnetic lock enter locked state.

As a kind of improvement of structure, the cylinder of described pintle hook lock is with gapped rotatingcylindrical drum between and the cylinder outward.Be useful on the installing hole of fixed installation pintle hook lock on the support fixation pin of described pintle hook lock.

There is one to be used for the positioning convex column that fastens with locating convex block in the described lock frame.

When electromagnetic lock of the present utility model is installed in the electronic locker, also be provided with an electronic switch that is connected with control circuit in the described lock frame, a driving lever is arranged on the described dead bolt.When electromagnetic lock was in locked state, described driving lever touched electronic switch.

As another preferred version, described lock frame comprises two flat boards that parallel, and described electromagnetic coil, conducting magnet core, dead bolt and cantilever are installed in the space between two flat boards; Described dead bolt is parallel to this two flat board.For the ease of installing, be useful on the installing hole that installs and fixes electromagnetic lock on described two flat boards.

Electromagnetic lock of the present utility model can be installed like this: the lock frame is fixed on a side of locker, and the locking trough notch is towards the cabinet door; Pintle hook lock is fixed on the cabinet door, and the rotatingcylindrical drum on the pintle hook lock is relative with the locking trough notch.When closing the Over-The-Counter door, the cylinder on the pintle hook lock enters in the locking trough from locking trough notch downside, promotes the high side of notch dead bolt is rotated around cantilever; Meanwhile, the rounding off limit at locking projection place makes conducting magnet core indentation in the electromagnetic coil with the inclined-plane that becomes big radius gradually and promote conducting magnet core, when arriving ladder sudden change limit, conducting magnet core resets under the effect of iron core return-spring, locking projection and conducting magnet core fasten, thereby make the dead bolt location; At this moment, pintle hook lock also is limited in the locking trough, thereby makes electromagnetic lock enter locked state.When electromagnetic coil gets when electric, conducting magnet core indentation in the electromagnetic coil, dead bolt breaks away from the restriction of conducting magnet core, back rotates around cantilever under the effect of dead bolt back-moving spring, and the locating convex block to the dead bolt fastens with the positioning convex column on the lock frame and ends; At this moment, the locking trough notch comes back to towards the position of cabinet door, pintle hook lock release lock draw-in groove and the cabinet door is opened, the electromagnetic lock unlocking condition of returning.

Electromagnetic lock of the present utility model because the dead bolt that has locking trough that adopts sheet and column pintle hook lock fasten realization sealed, thereby pintle hook lock one side structure is simple, installation volume is little, is particularly suited for being installed on the cabinet door of electronic locker.Because pintle hook lock is installed on the front side of electromagnetic lock, the lock frame left and right sides is installed surface, and the left side that can be installed in cupboard during use also can be installed in the right side of cupboard, thereby uses more convenient.Whole lock body is long-pending little, and simple in structure firm, safety is good, wide adaptability.

Description of drawings

Fig. 1 is the structural representation of electromagnetic lock of the present utility model;

Fig. 2 removes the internal construction schematic diagram of part lock frame for the electromagnetic lock among Fig. 1;

Fig. 3 is to be the structural representation of pintle hook lock;

Fig. 4 is the vertical view of Fig. 3;

Structural representation when Fig. 5 is the electromagnetic lock unlocking condition;

Structural representation when Fig. 6 is the electromagnetic lock locking state.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

As shown in Figure 1, electromagnetic lock of the present utility model is made up of lock frame 1, electromagnetic coil 2, conducting core 3, dead bolt 4, dead bolt back-moving spring 5, pintle hook lock 6 (see figure 3)s etc.Lock frame 1 is made up of two flat boards 11 that are parallel to each other and the bearing support 12 that is fixed between two flat boards 11, on the flat board 11 installing hole 14 is arranged.Electromagnetic coil 2 is fixed in the bearing support 12, and conducting core 3 is positioned at electromagnetic coil 2, and stretch out outside the electromagnetic coil 2 its upper end, and the upper end of conducting core 3 is the inclined-plane.Dead bolt 4 has a locking trough 41, a locking projection 42 and a locating convex block 43 in the form of sheets, and as shown in Figure 2, a side of locking trough 41 notches is higher than opposite side; One side of locking projection 42 is that radius becomes big rounding off limit gradually, and opposite side is the ladder sudden change limit that radius diminishes suddenly.Dead bolt 4 is fixed on the top of conducting core 3 by a cantilever 7.Dead bolt back-moving spring 5 is enclosed within outside the cantilever 7, and an end is fixedlyed connected with dead bolt 4, and the other end is fixedlyed connected with dull and stereotyped 11.A positioning convex column 13 that is used to limit dead bolt 4 revolution strokes is arranged on the lock frame 1.The structure of pintle hook lock 6 as shown in Figure 3, Figure 4, pintle hook lock is the cylinder 62 that there is support fixation pin 61 at two ends; Cylinder 62 is outer to be with gapped rotatingcylindrical drum 63 between and the cylinder 62, and installing hole 64 is arranged on the support fixation pin 61.

During use, lock frame 1 is fixedly mounted on the cupboard sidewall 9, and pintle hook lock 6 is fixedly mounted on the cabinet door 8.As shown in Figure 5, under unlocking condition, the locking trough 41 on the dead bolt 4 is towards the place ahead of electromagnetic lock, and is relative with the cylinder 62 of pintle hook lock 6.When cabinet door 8 was closed, cylinder 62 entered from locking trough 41 notch downsides, promoted the high side of notch and made dead bolt 4 around cantilever 7 rotations; Meanwhile, the rounding off limit of locking projection 42 is to become the inclined-plane that big radius promotes conducting magnet core 3 gradually, make conducting magnet core 3 toward electromagnetic coil 2 interior indentations, when arriving ladder sudden change limit, conducting magnet core 3 up ejects under the effect of iron core return-spring 10 and resets, locking projection 42 fastens with conducting magnet core 3, thereby make dead bolt 4 location, at this moment, the cylinder 62 of pintle hook lock 6 is limited in the locking trough 41, thereby make electromagnetic lock enter locked state, as shown in Figure 6.

In the time will unblanking, electromagnetic coil 2, conducting magnet core 3 is toward electromagnetic coil 2 interior indentations, dead bolt 4 under the effect of dead bolt back-moving spring 5 back spinning reduction to locating convex block 43 arrive positioning convex column 13, at this moment, locking trough 41 comes back to towards the position in the place ahead, and the cylinder 62 of pintle hook lock 6 is pushed out outside the locking trough 41, cabinet door 8 is opened, and electromagnetic lock is got back to unlocking condition as shown in Figure 5.

When electromagnetic lock of the present utility model is installed in the electronic locker, also be provided with an electronic switch 15 that is connected with the control circuit (not shown) in the lock frame 1, a driving lever 44 is arranged on the dead bolt 4; When electromagnetic lock is in locked state, this driving lever

4 touch the shell fragment 16 on the electronic switch 15, thereby the locked state signal of telecommunication is sent in the control circuit.

Claims

1, a kind of electromagnetic lock comprises lock frame, electromagnetic coil, the conducting magnet core that has iron core return-spring, dead bolt and pintle hook lock; It is characterized in that: described dead bolt has a locking trough that is used for fastening with pintle hook lock, one and is used for locking projection and a locating convex block that is used to limit dead bolt revolution stroke of fastening with conducting magnet core in the form of sheets; Dead bolt is installed on an end of conducting magnet core by a cantilever perpendicular to its sheet plane, and described locking projection and conducting magnet core one end fasten, and described locking trough is mutually opposed with pintle hook lock; Cantilever is with a dead bolt back-moving spring outward, and an end of this dead bolt back-moving spring is connected with dead bolt, and the other end is connected with the lock frame.

2, electromagnetic lock according to claim 1 is characterized in that: the end of described conducting magnet core is the inclined-plane; One side of described locking projection is that radius becomes big rounding off limit gradually; One side is the ladder sudden change limit that radius diminishes suddenly; When pintle hook lock and dead bolt mutually during closing, dead bolt rotates around cantilever, described rounding off limit makes conducting magnet core indentation in the electromagnetic coil with the inclined-plane that becomes big radius gradually and promote conducting magnet core, when arriving ladder sudden change limit, conducting magnet core resets under the effect of iron core return-spring, locking projection and conducting magnet core fasten, thereby make the dead bolt location, and electromagnetic lock is in locked state; When electromagnetic coil gets when electric, conducting magnet core indentation in the electromagnetic coil, dead bolt spinning reduction back under the effect of dead bolt back-moving spring, electromagnetic lock is in unlocking condition.

3, electromagnetic lock according to claim 1 is characterized in that: described pintle hook lock is the cylinder that there is the support fixation pin at two ends; One side of described locking trough notch is higher than opposite side; When pintle hook lock and dead bolt closing, the cylinder pintle hook lock enters in the locking trough from locking trough notch downside, promotes the high side of notch and makes dead bolt rotate to dead bolt when being positioned around cantilever, and pintle hook lock is limited in the locking trough, thereby makes electromagnetic lock enter locked state.

4, electromagnetic lock according to claim 3 is characterized in that: the cylinder of described pintle hook lock is with gapped rotatingcylindrical drum between and the cylinder outward.

5, electromagnetic lock according to claim 4 is characterized in that: the installing hole that is useful on the fixed installation pintle hook lock on the support fixation pin of described pintle hook lock.

6, electromagnetic lock according to claim 1 is characterized in that: have one to be used for the positioning convex column that fastens with locating convex block in the described lock frame.

7, electromagnetic lock according to claim 1 is characterized in that: also be provided with an electronic switch that is connected with control circuit in the described lock frame, a driving lever is arranged on the described dead bolt; When electromagnetic lock was in locked state, described driving lever touched electronic switch.

8, electromagnetic lock according to claim 1 is characterized in that: described lock frame comprises two flat boards that parallel, and described electromagnetic coil, conducting magnet core, dead bolt and cantilever are installed in the space between two flat boards; Described dead bolt is parallel to this two flat board.

9, electromagnetic lock according to claim 8 is characterized in that: be useful on the installing hole that installs and fixes electromagnetic lock on described two flat boards.