CN104280425A - Gas detector - Google Patents
Gas detector Download PDFInfo
- Publication number
- CN104280425A CN104280425A CN201410553640.5A CN201410553640A CN104280425A CN 104280425 A CN104280425 A CN 104280425A CN 201410553640 A CN201410553640 A CN 201410553640A CN 104280425 A CN104280425 A CN 104280425A
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- CN
- China
- Prior art keywords
- circuit
- transmission
- driving
- gas detector
- lead screw
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- 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.)
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Abstract
The invention discloses a gas detector. The gas detector comprises a shell, wherein the shell is internally provided with an induction chamber and a transmission chamber; an induction circuit board is arranged in the induction chamber; a transmission circuit board is arranged inside the transmission chamber; a transmission channel is formed between the induction chamber and the transmission chamber; a transmission turntable connected with the output end of the induction circuit board is arranged inside the induction chamber; a gear is arranged on the outer circle surface of the transmission turntable; a transmission screw is arranged inside the transmission channel, is matched with the gear of the transmission turntable and moves in the transmission channel under the action of the gear; a signal contact block connected with the input end of the transmission circuit board is arranged inside the transmission chamber and movably props against the end part of the transmission screw. The gas detector is simple in structure; the use safety is improved; wrong sensing signals of the induction chamber can be effectively avoided; the use stability is improved; the sensing signals can be effectively prevented from being interfered; the detection accuracy is improved; and the gas detector is high in applicability and strong in practicability.
Description
Technical field
The invention belongs to Detection Techniques field, be specifically related to a kind of gas detector.
Background technology
Along with the raising of people's living standard, coal gas liquefied gas etc. use and also increase gradually, in order to improve the safety in utilization of combustion gas, generally all need installing gas detector, the gas detector of prior art is mainly made up of sensor assembly and transmitter module, although it can realize the object of detection of gas to a certain extent, but its structure is comparatively complicated and easily produce the detection information of mistake, affect the precision of gas detect and the stability of detection to a certain extent, cost is also higher simultaneously, applicability is affected, and is difficult to the demand meeting market.
Summary of the invention
The object of this invention is to provide that a kind of structure is simple, stability in use good and the gas detector that accuracy of detection is high.
The technical scheme realizing the object of the invention is a kind of gas detector, comprise housing, nernst cell is provided with and room is sent in change in described housing, sensor circuit plate is provided with in described nernst cell, indoor are sent to be provided with transmission circuit plate in described change, send between room at described nernst cell and change and be provided with driving channel, the driving turntable be connected with described sensor circuit plate output terminal is provided with in described nernst cell, the periphery of described driving turntable is provided with gear, drive lead screw is provided with in described driving channel, described drive lead screw matches with the gear of described driving turntable and described drive lead screw moves under the effect of described gear in driving channel, described change send indoor to be provided with the signal contact block be connected with described transmission circuit plate input end, described signal contact block abuts with the end activity of described drive lead screw and arranges.
The driving circuit that described sensor circuit plate is provided with sensor circuit, the amplifying circuit be connected with described sensor circuit and is connected with described amplifying circuit, described driving circuit is connected with the central shaft of described driving turntable, and described driving turntable rotates under the driving of described driving circuit centered by central shaft.
Described transmission circuit plate is provided with signal input circuit, the treatment circuit be connected with described signal input circuit, the transfer circuit that is connected with described treatment circuit, and described signal input circuit is connected with described signal contact block.
Be provided with sealant at described driving channel inwall, the outer wall of described drive lead screw is connected on sealant.
The present invention has positive effect: structure of the present invention is simple, nernst cell and the isolation of the change room of sending are arranged, and carry out signal transmission by driving turntable, drive lead screw and signal contact block, change can be effectively avoided to send room to contact with gas, improve safety in utilization to a certain extent, effectively can avoid the wrong transducing signal of nernst cell simultaneously, improve stability in use to a certain extent, and can effectively induced signal is disturbed, improve accuracy of detection to a certain extent high, applicability is good, practical.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is structural representation of the present invention.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present invention, and wherein Fig. 1 is structural representation of the present invention.
See Fig. 1, a kind of gas detector, comprise housing 1, nernst cell 2 is provided with and room 3 is sent in change in described housing 1, sensor circuit plate 4 is provided with in described nernst cell 2, send in room 3 in described change and be provided with transmission circuit plate 5, send between room 3 at described nernst cell 2 and change and be provided with driving channel 6, the driving turntable 7 be connected with described sensor circuit plate 4 output terminal is provided with in described nernst cell 2, the periphery of described driving turntable 7 is provided with gear 8, drive lead screw 9 is provided with in described driving channel 6, described drive lead screw 9 matches with the gear 8 of described driving turntable 7 and described drive lead screw 9 is mobile in driving channel 6 under the effect of described gear 8, the signal contact block 10 being provided with and being connected with described transmission circuit plate 5 input end is sent in room 3 in described change, described signal contact block 10 abuts with the end activity of described drive lead screw 9 and arranges.
The driving circuit 43 that described sensor circuit plate 4 is provided with sensor circuit 41, the amplifying circuit 42 be connected with described sensor circuit 41 and is connected with described amplifying circuit 42, described driving circuit 43 is connected with the central shaft 11 of described driving turntable 7, and described driving turntable 7 rotates under the driving of described driving circuit 43 centered by central shaft 11.
Described transmission circuit plate 5 is provided with signal input circuit 51, the treatment circuit 52 be connected with described signal input circuit 51, the transfer circuit 53 that is connected with described treatment circuit 52, and described signal input circuit 51 is connected with described signal contact block 10.
Be provided with sealant 12 at described driving channel 6 inwall, the outer wall of described drive lead screw 9 is connected on sealant 12.
Nernst cell and the isolation of the change room of sending are arranged, and carry out signal transmission by driving turntable, drive lead screw and signal contact block, change can be effectively avoided to send room to contact with gas, improve safety in utilization to a certain extent, effectively can avoid the wrong transducing signal of nernst cell simultaneously, improve stability in use to a certain extent, and can effectively induced signal is disturbed, improve accuracy of detection to a certain extent high, applicability is good, practical.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (4)
1. a gas detector, comprise housing, nernst cell is provided with and room is sent in change in described housing, sensor circuit plate is provided with in described nernst cell, indoor are sent to be provided with transmission circuit plate in described change, it is characterized in that: send between room at described nernst cell and change and be provided with driving channel, the driving turntable be connected with described sensor circuit plate output terminal is provided with in described nernst cell, the periphery of described driving turntable is provided with gear, drive lead screw is provided with in described driving channel, described drive lead screw matches with the gear of described driving turntable and described drive lead screw moves under the effect of described gear in driving channel, described change send indoor to be provided with the signal contact block be connected with described transmission circuit plate input end, described signal contact block abuts with the end activity of described drive lead screw and arranges.
2. gas detector according to claim 1, it is characterized in that: the driving circuit that described sensor circuit plate is provided with sensor circuit, the amplifying circuit be connected with described sensor circuit and is connected with described amplifying circuit, described driving circuit is connected with the central shaft of described driving turntable, and described driving turntable rotates under the driving of described driving circuit centered by central shaft.
3. gas detector according to claim 2, it is characterized in that: on described transmission circuit plate, be provided with signal input circuit, the treatment circuit be connected with described signal input circuit, the transfer circuit that is connected with described treatment circuit, described signal input circuit is connected with described signal contact block.
4. gas detector according to claim 3, is characterized in that: be provided with sealant at described driving channel inwall, the outer wall of described drive lead screw is connected on sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553640.5A CN104280425A (en) | 2014-10-20 | 2014-10-20 | Gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553640.5A CN104280425A (en) | 2014-10-20 | 2014-10-20 | Gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104280425A true CN104280425A (en) | 2015-01-14 |
Family
ID=52255516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410553640.5A Pending CN104280425A (en) | 2014-10-20 | 2014-10-20 | Gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104280425A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495747A (en) * | 1994-09-30 | 1996-03-05 | Mine Safety Appliances Company | Device for detecting gases for use in diffusion and forced flow modes |
| CN2405221Y (en) * | 2000-01-27 | 2000-11-08 | 深圳安惠实业公司 | Intelligent type device for detecting combustible gas |
| CN201096745Y (en) * | 2007-10-16 | 2008-08-06 | 中国石油兰州石油化工公司 | Explosion separation zirconia oxygen analyzer |
| CN201600350U (en) * | 2009-12-22 | 2010-10-06 | 宇星科技发展(深圳)有限公司 | Anti-explosion type gas detection transducer |
| CN203658291U (en) * | 2013-11-06 | 2014-06-18 | 北京科力强电子有限公司 | Point type combustible gas detector |
-
2014
- 2014-10-20 CN CN201410553640.5A patent/CN104280425A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495747A (en) * | 1994-09-30 | 1996-03-05 | Mine Safety Appliances Company | Device for detecting gases for use in diffusion and forced flow modes |
| CN2405221Y (en) * | 2000-01-27 | 2000-11-08 | 深圳安惠实业公司 | Intelligent type device for detecting combustible gas |
| CN201096745Y (en) * | 2007-10-16 | 2008-08-06 | 中国石油兰州石油化工公司 | Explosion separation zirconia oxygen analyzer |
| CN201600350U (en) * | 2009-12-22 | 2010-10-06 | 宇星科技发展(深圳)有限公司 | Anti-explosion type gas detection transducer |
| CN203658291U (en) * | 2013-11-06 | 2014-06-18 | 北京科力强电子有限公司 | Point type combustible gas detector |
Non-Patent Citations (2)
| Title |
|---|
| 谢子殿 等.: "《基于氢传感器的管道泄漏检测仪电路设计》", 《中国仪器仪表》 * |
| 钱胜斌 等.: "《燃气泄露检测的CO -CH4气体变送器》", 《仪器技术与传感器》 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |
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| WD01 | Invention patent application deemed withdrawn after publication |