CN1088704A - Self-guard alarm device - Google Patents
Self-guard alarm device Download PDFInfo
- Publication number
- CN1088704A CN1088704A CN 92114771 CN92114771A CN1088704A CN 1088704 A CN1088704 A CN 1088704A CN 92114771 CN92114771 CN 92114771 CN 92114771 A CN92114771 A CN 92114771A CN 1088704 A CN1088704 A CN 1088704A
- Authority
- CN
- China
- Prior art keywords
- switch
- self
- duodiode
- integrated circuit
- piezoelectric ceramic
- 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.)
- Pending
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- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
Abstract
The present invention proposes a kind of self-defense alarming device, this alarm is by power supply, switch, duodiode, integrated circuit, triode power amplifier, output transformer and piezoelectric ceramic piece are formed, switch comprises a waver and a plug switch in parallel, when power connection, duodiode produces relaxation oscillation, and this oscillator signal is imported amplifying circuit through integrated circuit, after amplifying, drive piezoelectric ceramic piece, thereby send sharp-pointed chimes of doom by output transformer.This chimes of doom has the threatening effect to animals such as wolf and dogs.
Description
The present invention relates to a kind of warning device, particularly a kind of self-guard alarm device that can prevent wolf, dog class animal and evil person's attack effectively.
The principal feature of existing various alarms is variation generation sound or the visual alarms according to environment, to cause user or near personnel's attention, thereby intensity and the frequency to alerting signal do not have special requirement in common small-sized alarm, the result is, signal generally a little less than, tone is comparatively mild, frequency spectrum difference is serious, weakened the effect of reporting to the police widely, more can not prevent the attack of wolf, dog class animal effectively, and prevent that this class from attacking is very important for rural area or field worker (as postman, archaeological work person, explorer).
The objective of the invention is to provide a kind of self-guard alarm device that utilizes ball bearing made using to produce effective alerting signal, this device can prevent wolf, dog class animal and the evil person attack to the user effectively.
As alarm, important characteristic is the vigilance of the people's (comprising user, neighbours and evil person) around the alerting signal of its generation causes to greatest extent; And,, drive or frighten away wolf or dog class animal away owing to do not have direct killing power as self-defence utensil, and the signal that is sent just must meet certain conditions, and promptly this signal should make wolf, dog class animal feel fidgety or frightened.The present invention sets out just because of above-mentioned principle and designs, and it is held concurrently self-defence and reports to the police in one, and the piping that is sent has the effect of threatening evil person and wolf, dog class animal, and is good alerting signal.Self-defense alarming device of the present invention is to produce the Zhang Zhen that speeds by duodiode to swing, and this oscillator signal drives potsherd and produces the sharp-pointed sound by after amplifying.
The present invention will be further described below in conjunction with embodiment and accompanying drawing thereof.
Fig. 1 is the self-guard alarm device electrical schematic diagram that proposes according to the present invention.
As shown in Figure 1, this self-guard alarm device comprises power supply (not shown), switch, duodiode D, integrated circuit Ic, triode BG
1-BG
3, and piezoelectric ceramic piece G.Switch is divided into dual mode, one is the wave band formula, it two is a plug type, at ordinary times, waver disconnects, and plug switch is then disconnected by a band rope connector, so alarm free sound, when waver was closed, duodiode D produced the Zhang Zhen that speeds and swings, and this oscillator signal is TOSHBA TC 4089UBP by integrated circuit Ic(model) export and send by triode BG
1And BG
2The amplifying circuit of forming amplifies, and amplifying signal is through output transformer or directly drive piezoelectric ceramic piece G, thereby produces sharp-pointed chimes of doom.In case of emergency, perhaps have little time to stir waver with hand, can make connector extract as long as firmly drop the rope that ties up on hand this moment, makes power connection, produces above-mentioned chimes of doom.
Claims (1)
- A kind of self-defense alarming device, comprise power supply, switch and sounding component, it is characterized in that, switch is made up of a waver and a plug switch of parallel connection, sounding component is a piezoelectric ceramic piece, power amplifier that it is composed in series by triode and output transformer drive, and the signal of output triode that to be the Zhang Zhen that speeds by duodiode dissipate one's fortune is living, this duodiode is connected on the integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114771 CN1088704A (en) | 1992-12-25 | 1992-12-25 | Self-guard alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114771 CN1088704A (en) | 1992-12-25 | 1992-12-25 | Self-guard alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088704A true CN1088704A (en) | 1994-06-29 |
Family
ID=4947097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114771 Pending CN1088704A (en) | 1992-12-25 | 1992-12-25 | Self-guard alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088704A (en) |
-
1992
- 1992-12-25 CN CN 92114771 patent/CN1088704A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |