CN2835471Y - Anti-residual magnetism device for electromagnetic lock - Google Patents
Anti-residual magnetism device for electromagnetic lock Download PDFInfo
- Publication number
- CN2835471Y CN2835471Y CN 200520116379 CN200520116379U CN2835471Y CN 2835471 Y CN2835471 Y CN 2835471Y CN 200520116379 CN200520116379 CN 200520116379 CN 200520116379 U CN200520116379 U CN 200520116379U CN 2835471 Y CN2835471 Y CN 2835471Y
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- electromagnetic lock
- subplate
- residual magnetism
- hole
- lock
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Abstract
The utility model provides a residual magnetism preventing device for an electromagnetic lock, which belongs to the technical field of a machine. The utility model solves the problem that the sensitivity of opening a door is influenced because of residual magnetism after the existing electromagnetic lock is in power off. The residual magnetism preventing device for an electromagnetic lock is arranged between a lock body and a subplate of the electromagnetic lock. The device comprises a hole which is arranged on the lock body or the subplate, a hole opening of the hole is positioned on the contact surface of the lock body and the subplate, a spring and a top casting die are arranged in the hole, and the top casting die is partially extended out of the hole opening under the action of the spring. The top casting die is always and tightly butted on the lock body or the subplate under the action of the spring; therefore, when once the electromagnetic lock is in the power off, the elastic force of the spring can overcome the attracting force of the residual magnetism between the subplate and the lock body, the subplate and the lock body are pushed aside through the top casting die, and the door can be immediately opened. The door adopting the electromagnetic lock with the residual magnetism preventing device for an electromagnetic lock can be rapidly opened, and meanwhile, the device also has the characteristics of simple structure and low cost.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of electromagnetic lock, especially for the anti-residual magnetism device on the electromagnetic lock.
Background technology
Electromagnetic lock is sealed under "on" position, opens under off-position, and the control energising can realize remote control to electromagnetic lock with outage.Therefore, electromagnetic lock is used in building talkback burglary-resisting system, gate inhibition's security system and the fire prevention escape security system widely.
Existing electromagnetic lock after outage because the influence of residual residual magnetism is arranged, so electromagnetic lock can not in time be opened.As can be seen, when electromagnetic lock was applied in the fire prevention escape security system, door can in time be opened and just seem particularly important.Certainly, even electromagnetic lock is applied in common occasion, residual magnetism is also made troubles to the user, and the user will apply certain external force overcomes residual magnetism on door suction and door can be opened when opening the door.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing electromagnetic lock, and a kind of anti-residual magnetism device of electromagnetic lock is provided, and makes electromagnetic lock not only can transfer opening fast to after outage, but also has characteristic of simple structure.
The purpose of this utility model can realize by following technical proposal: a kind of anti-residual magnetism device of electromagnetic lock, be arranged between the lock body and subplate of electromagnetic lock, it is characterized in that, this device comprises out the hole on lock body or subplate, the aperture in this hole is positioned on the contact surface of lock body and subplate, spring and top-pressure part are housed, and top-pressure part partly stretches out the aperture under the effect of spring in the hole.
Electromagnetic lock is made up of subplate and lock body, and subplate is installed on the door, and lock body is installed on the doorframe.When door was shut and electromagnetic lock is switched on, subplate and lock body were sealed, and door just can't be opened.When opening the door, with the electromagnetic lock outage, electromagnetic lock is an opening, and door just can be opened.Be closely against on lock body or the subplate at top-pressure part under the effect of spring in the utility model always, therefore electromagnetic lock is in case after the outage, the elastic force of spring just overcomes the residual magnetism suction between subplate and the lock body, and subplate and lock body are backed down by top-pressure part, feasible door can be opened immediately, has eliminated the open the door problem of sensitivity of between lock body and subplate residual residual magnetism influence.
In the anti-residual magnetism device of above-mentioned electromagnetic lock, described top-pressure part is a ball.
In the anti-residual magnetism device of above-mentioned electromagnetic lock, described top-pressure part is a cylinder, and the inner of cylinder has the retaining edge of diameter greater than the aperture internal diameter in above-mentioned hole.The retaining edge can prevent that cylinder from coming off from the hole, but cylinder can stretch in the hole.
In the anti-residual magnetism device of above-mentioned electromagnetic lock, the quantity in described hole is one to three.
Compared with prior art, in the anti-residual magnetism device of this electromagnetic lock, because top-pressure part is closely against on subplate or the lock body under spring action always, therefore electromagnetic lock is in case after the outage, top-pressure part overcomes residual residual magnetism rear section and stretches out under the effect of spring, the extension of top-pressure part backs down subplate or lock body, and door just can be opened fast.Simultaneously, the anti-residual magnetism device of this electromagnetic lock is just offered the hole in subplate or lock body, and spring and ball are housed in the hole, so it is simple in structure, with low cost.
Description of drawings
Fig. 1 is the user mode schematic diagram of electromagnetic lock that has the anti-residual magnetism device of this electromagnetic lock.
Fig. 2 is the structural representation that has lock body and subplate in the electromagnetic lock of anti-residual magnetism device of this electromagnetic lock.
Fig. 3 is the partial enlarged drawing at the A place among Fig. 2.
Fig. 4 is the partial enlarged drawing of another kind of embodiment of the anti-residual magnetism device of this electromagnetic lock.
Among the figure, 1, the door; 2, doorframe; 3, lock body; 4, subplate; 5, hole; 6, spring; 7, top-pressure part; 71, retaining edge; 8, alignment pin.
The specific embodiment
Embodiment one
As shown in Figure 1, electromagnetic lock comprises lock body 3 and subplate 4, and subplate 4 and lock body 3 all are to be made by magnetic material.Subplate 4 is installed on the edge of door 1, and lock body 3 is installed on the edge of doorframe 2.Lock body 3 contacted with subplate 4 when door 1 closed, and energising back electromagnetic lock is sealed, and door 1 just can't be opened.Only after outage, non-electromagnetic-force effect between lock body 3 and the subplate 4 that is to say when electromagnetic lock is opening, and door 1 just is opened.
As shown in Figures 2 and 3, the anti-residual magnetism device of this electromagnetic lock is to offer hole 5 on subplate 4, and the quantity in hole 5 is two, and hole 5 is positioned at the contact position of subplate 4 and lock body 3.Spring 6 and top-pressure part 7 are housed in the hole 5, and the two ends of spring 6 act on respectively on 5 bottoms, hole and the top-pressure part 7.In the present embodiment, what top-pressure part 7 adopted is ball, and the external diameter of ball is slightly larger than the aperture internal diameter in hole 5, so ball can not break away from hole 5, but can partly stretch out.In the present embodiment, subplate 4 is installed on the door 1 by alignment pin 8.Hole 5 is in alignment pin 8 places, and the two ends of spring 6 act on respectively on alignment pin 8 and the top-pressure part 7.
Electromagnetic lock is when sealed, and top-pressure part 7 is pressed in the hole 5 by lock body 3.After the electromagnetic lock outage, the elastic force of spring 6 overcomes the residual magnetism suction between lock body 3 and the subplate 4, and the top-pressure part 7 that stretches out hole 5 by part backs down subplate 4 and lock body 3, thereby makes door 1 to open fast.
Embodiment two
Present embodiment is basic identical with the structure of embodiment one, and difference is that described top-pressure part 7 adopts a cylinder, and has the bigger retaining of diameter along 71 at the end that the tail end of cylinder promptly contacts with spring 6, sees shown in Figure 4.Make cylinder in hole 5, to stretch by retaining along 71, but can in hole 5, not come off.
Claims (5)
1, a kind of anti-residual magnetism device of electromagnetic lock, it is arranged between the lock body (3) and subplate (4) of electromagnetic lock, it is characterized in that, this device comprises out the hole (5) on lock body (3) or subplate (4), the aperture in this hole (5) is positioned on the contact surface of lock body (3) and subplate (4), spring (6) and top-pressure part (7) are housed, and top-pressure part (7) part is stretched out the aperture under the effect of spring (6) in hole (5).
2, the anti-residual magnetism device of electromagnetic lock according to claim 1 is characterized in that, described top-pressure part (7) is a ball.
3, the anti-residual magnetism device of electromagnetic lock according to claim 1 is characterized in that, described top-pressure part (7) is a cylinder, and the inner of cylinder has the retaining edge (71) of diameter greater than the aperture internal diameter of above-mentioned hole (5).
According to the anti-residual magnetism device of the described electromagnetic lock of claim 1 to 3, it is characterized in that 4, the quantity of described hole (5) is one to three.
According to the anti-residual magnetism device of the described electromagnetic lock of claim 1 to 3, it is characterized in that 5, described hole (5) are in the alignment pin (8) of subplate (4) and locate, the two ends of spring (6) act on respectively on alignment pin (8) and the top-pressure part (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116379 CN2835471Y (en) | 2005-11-14 | 2005-11-14 | Anti-residual magnetism device for electromagnetic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116379 CN2835471Y (en) | 2005-11-14 | 2005-11-14 | Anti-residual magnetism device for electromagnetic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835471Y true CN2835471Y (en) | 2006-11-08 |
Family
ID=37300127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520116379 Expired - Lifetime CN2835471Y (en) | 2005-11-14 | 2005-11-14 | Anti-residual magnetism device for electromagnetic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835471Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372344A (en) * | 2018-11-16 | 2019-02-22 | 上海鹿特士环保科技有限公司 | A kind of passenger flow counting Intelligent lock device |
| CN112227835A (en) * | 2020-10-16 | 2021-01-15 | 刘子春 | Closing buffer mechanism of electromagnetic lock |
| CN113137138A (en) * | 2020-01-17 | 2021-07-20 | 茂旭资讯股份有限公司 | Magnetic lock with elastic pushing piece to eliminate residual magnetism |
-
2005
- 2005-11-14 CN CN 200520116379 patent/CN2835471Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372344A (en) * | 2018-11-16 | 2019-02-22 | 上海鹿特士环保科技有限公司 | A kind of passenger flow counting Intelligent lock device |
| CN113137138A (en) * | 2020-01-17 | 2021-07-20 | 茂旭资讯股份有限公司 | Magnetic lock with elastic pushing piece to eliminate residual magnetism |
| CN112227835A (en) * | 2020-10-16 | 2021-01-15 | 刘子春 | Closing buffer mechanism of electromagnetic lock |
| CN112227835B (en) * | 2020-10-16 | 2021-09-14 | 陶雪梅 | Closing buffer mechanism of electromagnetic lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061108 |
|
| EXPY | Termination of patent right or utility model |