CN103741997A - Key pullout reminding device - Google Patents
Key pullout reminding device Download PDFInfo
- Publication number
- CN103741997A CN103741997A CN201410045775.0A CN201410045775A CN103741997A CN 103741997 A CN103741997 A CN 103741997A CN 201410045775 A CN201410045775 A CN 201410045775A CN 103741997 A CN103741997 A CN 103741997A
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- China
- Prior art keywords
- time relay
- power supply
- key
- open contact
- travel switch
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Abstract
The invention discloses a key pullout reminding device, and belongs to electronic detection and reminding devices. The device comprises a time relay, a power supply, a sounding device, an alarming lamp, a lock cylinder ejector rod, and a travel switch arranged at the front end of a lock hole of a security door, wherein the time relay adopts an electrifying delay type time relay, and is provided with a first normally open contact and a second normally open contact; a coil of the time relay is connected with the power supply through the travel switch; the sounding device is connected with the power supply through the first normally open contact of the time relay; the alarming lamp is connected with the power supply through the second normally open contact of the time relay. The key pullout reminding device can detect keys inserted in the lock hole, and reminds users when the users forget to pull out the keys to avoid chance for criminals. The key pullout prompt device also has a doorbell function, so that the stronger practicability is achieved.
Description
Technical field
The present invention relates to a kind of key alarm set of choosing, belong to detection of electrons and alarm set.
Background technology
Along with the raising of people's living standard, every household has all been loaded onto security door, and this has brought guarantee to undoubtedly resident's property and personal safety.Yet in daily life, some,, due to hastily, do not extract key and just entered after opening the door, and do not remember the key of staying in lockhole is extracted again afterwards, this has just brought opportunity to lawless person.
Summary of the invention
The present invention is directed to the problem in background technology, propose a kind of key alarm set of choosing, this device can be reminded it when user forgets to pull key, and avoids bringing opportunity to lawless person.
The present invention, for overcoming the above problems, adopts following technical scheme:
The key alarm set of choosing, comprises the time relay, power supply, sounding device, alarm lamp and the travel switch of being located at security door lockhole front end; The described time relay adopts the on-delay type time relay; The described time relay has the first constant open contact and the second constant open contact; The coil of the described time relay is connected with power supply by travel switch; Described sounding device is connected with power supply by the first constant open contact of the time relay; Described alarm lamp is connected with power supply by the second constant open contact of the time relay.
As further prioritization scheme of the present invention, described security door outside is also provided with switch, and described sounding device is connected with power supply by switch simultaneously.
As further prioritization scheme of the present invention, described alarm lamp adopts red LED lamp, and is located at security door inner side.
As further prioritization scheme of the present invention, described power acquisition alkaline battery.
Technique effect:
1, the present invention can detect the key inserting in lockhole, and when user forgets to pull key, it is reminded, and avoids bringing opportunity to lawless person.
2, the present invention has doorbell function simultaneously, has stronger practicality.
3, the present invention simultaneously reserved contact can be connected with the original doorbell of security door, realize equally when user forgets to pull key it reminded.
4, the present invention is rational in infrastructure, is easy to realize, and has good market prospects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Label title in Fig. 1: 1, travel switch 2, lock core push rod; 3, sounding device; 4, security door; 5, lockhole; 6, key; 7, switch; 8, doorbell; 9, alarm lamp.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is done in further detail and is introduced:
Structure of the present invention as shown in Figure 1, comprises the time relay, power supply, sounding device 3, alarm lamp 9, lock core push rod 2 and the travel switch 1 of being located at security door lockhole front end; The described time relay adopts the on-delay type time relay; The described time relay has the first constant open contact and the second constant open contact; The coil of the described time relay is connected with power supply by travel switch 1; Described sounding device 2 is connected with power supply by the first constant open contact of the time relay; Described alarm lamp 3 is connected with power supply by the second constant open contact of the time relay.
Described security door outside is also provided with switch 7, and described sounding device 2 is connected with power supply by switch 7 simultaneously; Described alarm lamp 9 adopts red LED lamp, and is located at security door 4 inner sides; Described power acquisition alkaline battery; Described sounding device 2 can adopt piezo buzzer; Described travel switch 1 can adopt micromachine travel switch, for detecting inserting the key of lockhole; Described switch 7 adopts push-button switch.
Operating principle of the present invention is as follows, when key 6 inserts lockhole 5, key bar can pushing lock cylinder push rod 2 be pressed the button of travel switch 1, and make the closing of contact of travel switch 1, the coil of the time relay and power connection, the time relay starts timing, when the time of advent relay setting-up time time (as 30 seconds), the first constant open contact of the time relay and the second constant open contact are all closed, sounding device 3 and alarm lamp 9 switch on power simultaneously, and by sound and bright mode reminding user, pull up as early as possible key respectively.
The novel doorbell function of simultaneously also having realized of this use, when guest arrives doorway, only need press the switch 7 in security door outside, and sounding device 2 can switch on power equally, and sends prompt tone, to remind resident family to have outdoors people.
The contact of this use Novel position switch 1 can externally be exported, and by the original doorbell 8 of delay circuit and security door, is connected, and utilizes door bell for anti-theft door to realize when user forgets to pull key it is reminded.
Claims (5)
1. the key alarm set of choosing, is characterized in that: comprise the time relay, power supply, sounding device (3), alarm lamp (9), lock core push rod (2) and the travel switch (1) of being located at security door lockhole front end; The described time relay adopts the on-delay type time relay; The described time relay has the first constant open contact and the second constant open contact; The coil of the described time relay is connected with power supply by travel switch (1); Described sounding device (3) is connected with power supply by the first constant open contact of the time relay; Described alarm lamp (9) is connected with power supply by the second constant open contact of the time relay.
2. a kind of key according to claim 1 alarm set of choosing, is characterized in that: described security door outside is also provided with switch (7), and described sounding device (3) is connected with power supply by switch (7) simultaneously.
3. a kind of key according to claim 1 alarm set of choosing, is characterized in that: described alarm lamp (9) adopts red LED lamp, and is located at security door inner side.
4. a kind of key according to claim 1 alarm set of choosing, is characterized in that: described power acquisition alkaline battery.
5. a kind of key according to claim 1 alarm set of choosing, is characterized in that: the contact of described travel switch (1) can externally be exported, and by delay circuit, is connected with doorbell (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045775.0A CN103741997A (en) | 2014-02-08 | 2014-02-08 | Key pullout reminding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045775.0A CN103741997A (en) | 2014-02-08 | 2014-02-08 | Key pullout reminding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103741997A true CN103741997A (en) | 2014-04-23 |
Family
ID=50499054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045775.0A Pending CN103741997A (en) | 2014-02-08 | 2014-02-08 | Key pullout reminding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103741997A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018737A (en) * | 2014-06-10 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | Pulling reminding method for door lock key |
| CN104658201A (en) * | 2014-06-23 | 2015-05-27 | 文光顺 | System for automatically detecting keys and prompting when going out |
| CN106401415A (en) * | 2016-08-31 | 2017-02-15 | 衢州职业技术学院 | Intelligent anti-theft door and control method thereof |
| CN111577013A (en) * | 2020-05-21 | 2020-08-25 | 重庆科技学院 | Key forgets to pull out and door does not close reminding device |
-
2014
- 2014-02-08 CN CN201410045775.0A patent/CN103741997A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018737A (en) * | 2014-06-10 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | Pulling reminding method for door lock key |
| CN104658201A (en) * | 2014-06-23 | 2015-05-27 | 文光顺 | System for automatically detecting keys and prompting when going out |
| CN106401415A (en) * | 2016-08-31 | 2017-02-15 | 衢州职业技术学院 | Intelligent anti-theft door and control method thereof |
| CN106401415B (en) * | 2016-08-31 | 2018-05-15 | 衢州职业技术学院 | Intelligent anti-theft door and its control method |
| CN111577013A (en) * | 2020-05-21 | 2020-08-25 | 重庆科技学院 | Key forgets to pull out and door does not close reminding device |
| CN111577013B (en) * | 2020-05-21 | 2021-06-04 | 重庆科技学院 | Key forgets to pull out and door does not close reminding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |
|
| WD01 | Invention patent application deemed withdrawn after publication |