CN203217718U - Voice near-electricity alarm safety helmet - Google Patents
Voice near-electricity alarm safety helmet Download PDFInfo
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- CN203217718U CN203217718U CN 201320181805 CN201320181805U CN203217718U CN 203217718 U CN203217718 U CN 203217718U CN 201320181805 CN201320181805 CN 201320181805 CN 201320181805 U CN201320181805 U CN 201320181805U CN 203217718 U CN203217718 U CN 203217718U
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Abstract
The utility model discloses a voice near-electricity alarm safety helmet and belongs to the technical field of electric power safety facilities. The voice near-electricity alarm safety helmet comprises a safety helmet body and an alarm device arranged in the safety helmet body, wherein the alarm device comprises an induction coil, a control circuit, an alarm circuit and a loudspeaker. The induction coil is connected with an input end of the control circuit, an output end of the control circuit is connected with an input end of the alarm circuit, and an output end of the alarm circuit is connected with the loudspeaker. The control circuit comprises a sensitivity switch and a plurality of adjustable resistors. The adjustable resistors are divided into several groups which are connected with each shift of the sensitivity switch respectively. The voice near-electricity alarm safety helmet can adjust sensitivity by changing the resistors in dependence on on-site line voltage grades, has a wide application range, and is safe.
Description
Technical field
The utility model relates to a kind of adjustable language safety helmet capable of giving alarm near electricity, belongs to electric power safety facility technology field.
Background technology
In fields such as electric power, telecommunications, railway and broadcasting and TV, the staff often need carry out work in alive circuit or equipment region, for preventing the nearly above-mentioned charged position of operating personnel's misconnection, present major measure is, the operating personnel is with a kind of safety helmet capable of giving alarm near electricity, traditional safety helmet capable of giving alarm near electricity be when the operation personnel near alive circuit or equipment region and when reaching certain distance, automatically send the audio alert as " a bit dangerous; please don't be close " in the cap, remind the operating personnel to note, can effectively prevent the busy accident of personal electrocution.The defective that above-mentioned safety helmet mainly exists is that warning sensitivity, the startup fixed distance of reporting to the police can not arrange warning sensitivity according to voltage and the distance of reality, so still can bring certain puzzlement to the operating personnel.
In view of this, the inventor studies this, develops a kind of adjustable language safety helmet capable of giving alarm near electricity specially, and this case produces thus.
The utility model content
The purpose of this utility model provides the adjustable language safety helmet capable of giving alarm near electricity of a kind of warning sensitivity.
To achieve these goals, solution of the present utility model is:
A kind of language safety helmet capable of giving alarm near electricity, comprise the safety helmet main body and be arranged on the interior warning device of safety helmet main body, wherein, warning device comprises inductive coil, control circuit, warning circuit and loudspeaker, inductive coil links to each other with the input end of control circuit, the output terminal of control circuit links to each other with the input end of warning circuit, loudspeaker links to each other with the output terminal of warning circuit, wherein, above-mentioned control circuit comprises sensitivity switch and several adjustable resistances, and adjustable resistance is divided into some groups, links to each other with each gear of sensitivity switch respectively, by regulating the size of resistance, regulate sensitivity.
Above-mentioned warning device is circular-arc, the supporting top that is arranged on the safety helmet main body.
Above-mentioned control circuit further comprises power supply, power switch, touch-switch and fixed resistance, wherein, power switch is two gear switch, one end links to each other with power supply, and the other end links to each other with adjustable resistance, and touch-switch one end links to each other with inductive coil by fixed resistance, the other end links to each other with power cathode, touch-switch is mainly used in self check, presses touch-switch, sends audio alert for normally using.
Above-mentioned warning circuit comprises field effect transistor, voice sheet, electrochemical capacitor, ceramic disc capacitor, adjustable resistance and several triodes and fixed resistance, wherein field effect transistor links to each other with the output terminal of control circuit, the Tr pin of voice sheet links to each other with field effect transistor by triode, the B pin of speech chip links to each other with loudspeaker by two triodes of connecting mutually, on the triode that electrochemical capacitor is connected in parallel on speech chip links to each other, between speech chip positive pole and R pin, also be provided with an adjustable resistance, be used for adjusting the height of speech tone; Ceramic disc capacitor is connected between speech chip Tr pin and the power cathode, and the speech chip negative pole links to each other with power cathode, and above-mentioned speech chip model is CU07B.
When above-mentioned language safety helmet capable of giving alarm near electricity uses, turn on the power switch earlier, as required the sensitivity switch is placed place line voltage distribution grade end then; Press touch-switch, carry out self check, can use after self check is qualified, when inductive coil was not sensed electric field signal, then BG1 was low resistive state, and BG2 ends, and speech chip can not trigger, and can not send alerting signal; When inductive coil is sensed electric field signal, then field effect transistor is high-impedance state, triggers speech chip Tr pin after the triode conducting, after voice signal amplifies by two triodes, send alerting signal by loudspeaker, pass through the volume height of resistance adjustment loudspeaker simultaneously.Send out when self check, when the sound that loudspeaker sends obviously diminishes, show and to change power supply; When safety helmet with alarm does not use, answer the powered-down switch.
Compared with prior art, adjustable language safety helmet capable of giving alarm near electricity can be adjusted sensitivity according to on-the-spot line voltage distribution grade, and the scope of application is wider, and safer.
Below in conjunction with drawings and the specific embodiments the utility model is done and to be described in further detail.
Description of drawings
Fig. 1 is the language safety helmet capable of giving alarm near electricity structural representation of present embodiment;
Fig. 2 is the language safety helmet capable of giving alarm near electricity circuit module figure of present embodiment;
Fig. 3 is the language safety helmet capable of giving alarm near electricity circuit theory diagrams of present embodiment.
Embodiment
Shown in Fig. 1-2, a kind of language safety helmet capable of giving alarm near electricity, comprise safety helmet main body 1 and be arranged on the interior warning device 2 of safety helmet main body, wherein, warning device 2 comprises inductive coil, control circuit, warning circuit and loudspeaker, inductive coil G links to each other with the input end of control circuit, and the output terminal of control circuit links to each other with the input end of warning circuit, and loudspeaker Y links to each other with the output terminal of warning circuit.Above-mentioned warning device 2 is circular-arc, the supporting top that is arranged on safety helmet main body 1.
As shown in Figure 3, above-mentioned control circuit comprises power supply EC, power switch K1, sensitivity K switch 2, touch-switch AN, fixed resistance R8 and 7 adjustable resistance R1 ~ R7, wherein, power switch K1 is two gear switch, one end links to each other with power supply EC, and the other end links to each other with adjustable resistance R1, in the present embodiment, sensitivity K switch 2 is third gear switch, adjustable resistance R1 ~ R7 is divided into three groups, wherein, and R1, R2, it is one group that R3 and R4 connect mutually, the resistance sum is 40 ~ 88M Ω, link to each other with the A shelves of sensitivity K switch 2, it is one group that R5 and R6 connect mutually, and the resistance sum is 15 ~ 25M Ω, link to each other with the B shelves of sensitivity K switch 2, R7 links to each other with the C shelves of sensitivity K switch 2, and resistance is 3 ~ 4.7 M Ω, by regulating the size of above-mentioned resistance, regulate sensitivity, touch-switch AN one end links to each other with inductive coil G by fixed resistance R8, and the other end links to each other with power supply EC negative pole, and touch-switch AN is mainly used in self check, press touch-switch AN, send audio alert for normally using.
Above-mentioned warning circuit comprises field effect transistor BG1, triode BG2, triode BG3, triode BG4, speech chip IC1, ceramic disc capacitor C1, electrochemical capacitor C2, adjustable resistance R11 and fixed resistance R9, R10 and R12, and wherein the grid of field effect transistor BG1 links to each other with the output terminal of control circuit; The base stage of triode BG2 links to each other with the source electrode of triode BG1, links to each other with power supply EC negative pole by resistance R 9 simultaneously, and collector links to each other with the Tr pin of speech chip IC1, links to each other with power supply EC negative pole by resistance R 10 simultaneously, and emitter links to each other with power supply EC is anodal; The collector of the B pin triode BG3 of speech chip IC1 links to each other, the Tr pin links to each other with the base stage of triode BG3 by resistance R 12, the base stage of triode BG4 links to each other with the collector of triode BG3, loudspeaker one end links to each other with the collector of triode BG4, the other end links to each other with the positive pole of speech chip IC1, the emitter of triode BG4 links to each other with the negative pole of power supply EC, and electrochemical capacitor C2 is connected in parallel between the collector and emitter of triode BG3, and ceramic disc capacitor C1 is connected in parallel on resistance R 10 two ends.Between speech chip IC1 positive pole and R pin, also be provided with an adjustable resistance R11, be used for adjusting the height of speech tone; Speech chip IC1 negative pole links to each other with power supply EC negative pole, and above-mentioned speech chip IC1 model is CU07B.
When above-mentioned language safety helmet capable of giving alarm near electricity uses, turn on the power switch K1 earlier, as required sensitivity K switch 2 is placed place line voltage distribution grade end then, sensitivity K switch 2 is divided into high, medium and low three gears; Press touch-switch AN, carry out self check, can use after self check is qualified.When inductive coil G did not sense electric field signal, then field effect transistor BG1 was low resistive state, and triode BG2 ends, and speech chip IC1 can not trigger, and can not send alerting signal; When inductive coil G senses electric field signal, then field effect transistor BG1 is high-impedance state, trigger the Tr pin of speech chip IC1 after the triode BG2 conducting, after voice signal amplifies by triode BG3 and BG4, Y sends alerting signal by loudspeaker, regulates the volume height of loudspeaker Y simultaneously by resistance R 11.Send out when self check, when the sound that loudspeaker Y sends obviously diminishes, show and to change power supply EC; When safety helmet with alarm does not use, answer the powered-down switch.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (4)
1. language safety helmet capable of giving alarm near electricity, it is characterized in that: comprise the safety helmet main body and be arranged on the interior warning device of safety helmet main body, wherein, warning device comprises inductive coil, control circuit, warning circuit and loudspeaker, inductive coil links to each other with the input end of control circuit, the output terminal of control circuit links to each other with the input end of warning circuit, loudspeaker links to each other with the output terminal of warning circuit, above-mentioned control circuit comprises sensitivity switch and several adjustable resistances, adjustable resistance is divided into some groups, links to each other with each gear of sensitivity switch respectively.
2. a kind of language safety helmet capable of giving alarm near electricity as claimed in claim 1, it is characterized in that: above-mentioned warning device is circular-arc, the supporting top that is arranged on the safety helmet main body.
3. a kind of language safety helmet capable of giving alarm near electricity as claimed in claim 1, it is characterized in that: above-mentioned control circuit further comprises power supply, power switch, touch-switch and fixed resistance, wherein, power switch is that an end links to each other with power supply, the other end links to each other with adjustable resistance, touch-switch one end links to each other with inductive coil by fixed resistance, and the other end links to each other with power cathode.
4. a kind of language safety helmet capable of giving alarm near electricity as claimed in claim 1, it is characterized in that: above-mentioned warning circuit comprises field effect transistor, speech chip, electrochemical capacitor, ceramic disc capacitor, adjustable resistance and several triodes and fixed resistance, wherein field effect transistor links to each other with the output terminal of control circuit, the Tr pin of speech chip links to each other with field effect transistor by triode, the B pin of speech chip links to each other with loudspeaker by two triodes of connecting mutually, on the triode that electrochemical capacitor is connected in parallel on speech chip links to each other, between speech chip positive pole and R pin, also be provided with an adjustable resistance, ceramic disc capacitor is connected between speech chip Tr pin and the power cathode, the speech chip negative pole links to each other with power cathode, and above-mentioned speech chip model is CU07B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181805 CN203217718U (en) | 2013-04-11 | 2013-04-11 | Voice near-electricity alarm safety helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181805 CN203217718U (en) | 2013-04-11 | 2013-04-11 | Voice near-electricity alarm safety helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203217718U true CN203217718U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320181805 Expired - Fee Related CN203217718U (en) | 2013-04-11 | 2013-04-11 | Voice near-electricity alarm safety helmet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203217718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408871A (en) * | 2014-11-11 | 2015-03-11 | 国家电网公司 | Safety testing meter |
| CN108053608A (en) * | 2017-11-08 | 2018-05-18 | 全球能源互联网研究院有限公司 | A kind of alarming in short range of electric power method, apparatus and alarming in short range of electric power intelligent helmet |
| CN113112747A (en) * | 2021-04-01 | 2021-07-13 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Near electric early warning system of modularization |
-
2013
- 2013-04-11 CN CN 201320181805 patent/CN203217718U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408871A (en) * | 2014-11-11 | 2015-03-11 | 国家电网公司 | Safety testing meter |
| CN108053608A (en) * | 2017-11-08 | 2018-05-18 | 全球能源互联网研究院有限公司 | A kind of alarming in short range of electric power method, apparatus and alarming in short range of electric power intelligent helmet |
| CN113112747A (en) * | 2021-04-01 | 2021-07-13 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Near electric early warning system of modularization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160411 |