CN201584033U - Door opening alarm device - Google Patents
Door opening alarm device Download PDFInfo
- Publication number
- CN201584033U CN201584033U CN200920288323XU CN200920288323U CN201584033U CN 201584033 U CN201584033 U CN 201584033U CN 200920288323X U CN200920288323X U CN 200920288323XU CN 200920288323 U CN200920288323 U CN 200920288323U CN 201584033 U CN201584033 U CN 201584033U
- Authority
- CN
- China
- Prior art keywords
- alarm
- alarm device
- door
- door leaf
- fixed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a door opening alarm device, which is characterized by mainly comprising a power supply, an alarm and a power switch, wherein the alarm and the power switch are connected with both ends of the power supply in series, a door leaf is provided with a breaker, a doorframe is provided with a fixed contact and a movable contact connected in the circuit of the alarm in series, and the movable contact is provided with a reset spring to keep the movable contact in a normally closed state. When the door is closed, the breaker of the door leaf makes the movable contact separated from the fixed contact. When the door is opened, the breaker of the door leaf is moved away, the movable contact and the fixed contact are closed under the action of the reset spring, then the alarm works, and the arranged power switch is used for avoiding unnecessary alarming. The door opening alarm device has the advantages of simple structure, safe and convenient use and avoidance of unnecessary alarming.
Description
Technical field
The utility model relates to warning device.
Background technology
General door and window for light all be noiseless as far as possible, but some place, as warehouse, safe cabinet, prison etc., but will be with alarm so that supervision.
Summary of the invention
The purpose of this utility model is to provide a kind of alarm that opens the door and promptly report to the police.
The utility model provides a kind of open alarm device, it is characterized in that: mainly comprise power supply, alarm, power switch, alarm and power switch are connected on the two ends of power supply, it is characterized in that: the fixed contact and the armature contact that have on isolating switch and the doorframe in the circuit that is connected on alarm are arranged on the door leaf, armature contact has back-moving spring, makes it keep normally off.When door was shut, the door leaf isolating switch made armature contact leave fixed contact.When opening the door, the door leaf isolating switch is removed, armature contact under the effect of back-moving spring with the fixed contact closure, alarm is work just, the power switch of setting is used to the warning of avoiding unnecessary.
The open alarm device that the utility model provides, its door leaf isolating switch can be the dead bolts of door leaf.When door was shut, dead bolt forced armature contact to leave fixed contact.When opening the door, dead bolt withdraws from, armature contact under the effect of back-moving spring with the fixed contact closure, alarm is work just.
The open alarm device that the utility model provides, its door leaf isolating switch can be a magnet.When door was shut, magnet inhaled armature contact from fixed contact.When opening the door, magnet away from, armature contact under the effect of back-moving spring with the fixed contact closure, alarm is work just.
The open alarm device that the utility model provides, its alarm can be sound generator and/or optical signal generator, so that remind the supervisor to know.
The open alarm device that the utility model provides, its power source voltage can be direct currents or exchange safe voltage, as the 220V alternating current of dry cell, accumulator, storage battery or band step-down transformer.
The open alarm device that the utility model provides, its advantage is: simple in structure, safe and convenient to use, can avoid unnecessary warning.
Description of drawings
Fig. 1 is the structural representation of dead bolt open alarm device;
Fig. 2 is the structural representation of magnet-type open alarm device.
Embodiment
Embodiment 1
The dead bolt open alarm device, its structure as shown in Figure 1,---fixed contact 4 on dry cell 1, sonic alarm 2, power switch 3, the doorframe and armature contact 5 and the door leaf isolating switch---dead bolt 7 that comprises power supply, alarm 2 and power switch 3 are connected on the two ends of power supply 1, fixed contact 4 on the doorframe and armature contact 5 are connected in the circuit of alarm 2, armature contact 5 has back-moving spring 6, makes armature contact 5 and fixed contact 4 keep normally off.
When door was shut, dead bolt 7 forced armature contact 5 to leave fixed contact 4.When opening the door, dead bolt 7 withdraws from, armature contact 5 under the effect of back-moving spring 6 with fixed contact 4 closures, alarm 3 is work just, the power switch 3 of setting is used to the warning of avoiding unnecessary.
The magnet-type open alarm device, its structure as shown in Figure 1,---fixed contact 4 on accumulator 1, the sound and visual alarm 2, power switch 3, the doorframe and isolating switch on armature contact 5 and the door leaf---magnet 7 that comprises power supply, alarm 2 and power switch 3 are connected on the two ends of power supply 1, fixed contact 4 on the doorframe and armature contact 5 are connected in the circuit of alarm 2, armature contact 5 has back-moving spring 6, makes armature contact 5 and fixed contact 4 keep normally off.
When door was shut, magnet 7 inhaled armature contact 5 from fixed contact 4.When opening the door, magnet 7 away from, armature contact 5 under the effect of back-moving spring 6 with fixed contact 4 closures, just work of alarm 3, the power switch 3 of setting is used to the warning of avoiding unnecessary.
Claims (6)
1. open alarm device, mainly comprise power supply, alarm, power switch, alarm and power switch are connected on the two ends of power supply, it is characterized in that: the fixed contact and the armature contact that have on isolating switch and the doorframe in the circuit that is connected on alarm are arranged on the door leaf, armature contact has back-moving spring, makes it keep normally off.
2. according to the described open alarm device of claim 1, it is characterized in that: described door leaf isolating switch is the dead bolt of door leaf.
3. according to the described open alarm device of claim 1, it is characterized in that: described door leaf isolating switch is a magnet.
4. according to the described open alarm device of one of claim 1～3, it is characterized in that: described alarm is sound generator and/or optical signal generator.
5. according to the described open alarm device of one of claim 1～3, it is characterized in that: described power source voltage is direct current or exchanges safe voltage.
6. according to the described open alarm device of claim 4, it is characterized in that: described power source voltage is direct current or exchanges safe voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920288323XU CN201584033U (en) | 2009-12-23 | 2009-12-23 | Door opening alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920288323XU CN201584033U (en) | 2009-12-23 | 2009-12-23 | Door opening alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584033U true CN201584033U (en) | 2010-09-15 |
Family
ID=42726041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920288323XU Expired - Fee Related CN201584033U (en) | 2009-12-23 | 2009-12-23 | Door opening alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622836A (en) * | 2012-01-31 | 2012-08-01 | 河南省电力公司周口供电公司 | Elastic antitheft alarm |
| CN112272431A (en) * | 2020-10-16 | 2021-01-26 | 华域视觉科技(上海)有限公司 | Control method and device of vehicle lamp, vehicle lamp and storage medium |
-
2009
- 2009-12-23 CN CN200920288323XU patent/CN201584033U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622836A (en) * | 2012-01-31 | 2012-08-01 | 河南省电力公司周口供电公司 | Elastic antitheft alarm |
| CN112272431A (en) * | 2020-10-16 | 2021-01-26 | 华域视觉科技(上海)有限公司 | Control method and device of vehicle lamp, vehicle lamp and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20101223 |