CN200975959Y - Sensor quantitative sampler of alcohol tester - Google Patents
Sensor quantitative sampler of alcohol tester Download PDFInfo
- Publication number
- CN200975959Y CN200975959Y CN 200620160565 CN200620160565U CN200975959Y CN 200975959 Y CN200975959 Y CN 200975959Y CN 200620160565 CN200620160565 CN 200620160565 CN 200620160565 U CN200620160565 U CN 200620160565U CN 200975959 Y CN200975959 Y CN 200975959Y
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- CN
- China
- Prior art keywords
- sensor
- reaction chamber
- connecting pipe
- draft tube
- air
- Prior art date
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Abstract
The utility model relates to a sensor rationing sampler of an alcohol detection device, which is composed of an intake pipe and a reactor. An air inlet is arranged on one end of the intake pipe, and an air outlet is arranged on the other end. The caliber of the air inlet near the port of the air outlet shrinks and narrows down. A connecting pipe is positioned on the caliber that narrows down. The reactor is positioned inside the connecting pipe and sealed with the pipe wall. The bottom of the reactor is provided with an inlet hole. A baffle is arranged outside the inlet hole. A long and narrow channel is formed between the baffle and the bottom of the reactor. The inlet hole is connected with the intake pipe by the channel. The utility model can prevents the air from impacting and thus influencing the sensor, gives the sensor a stable reacting environment and moderate reacting gas input, and thus makes the sensor have more accurate testing ability.
Description
Technical field
The utility model relates to employed sensor proportional sampling device on a kind of alcohol tester.
Background technology
At present, in use to alcohol tester, all be directly mouth to be aimed at the tester air intake opening to blow, gas directly enters the sensor of tester and tests, like this, and the direct shock transducer of gas, sensor is detected in an environment that dynamically shakes, therefore, sensor is affected, directly influence the accuracy of sensor.
The utility model content
The utility model has overcome above-mentioned shortcoming, a kind of sensor proportional sampling device of alcohol tester is provided, by this sampler, the influence that can avoid the direct shock transducer of gas to be caused, for sensor provides a stable reaction environment, make sensor more accurate.
The technical scheme in the invention for solving the technical problem is: a kind of sensor proportional sampling device of alcohol tester, it is made up of draft tube and reaction chamber, one end of described draft tube is an air intake opening, the other end is the gas outlet, narrow down in draft tube caliber contraction near the gas outlet end, on the caliber that narrows down gradually, be provided with connecting pipe, described reaction chamber is arranged in the described connecting pipe and with tube wall and seals, the bottom of described reaction chamber is provided with air admission hole, outside described air admission hole, be provided with baffle plate, form a gallery between the bottom of described baffle plate and described reaction chamber, this gallery is communicated with air admission hole and described draft tube.
The sensor proportional sampling device of described alcohol tester, extend downwards near air outlet side the bottom of described connecting pipe, and the lower end of described connecting pipe is concordant with the bottom lower surface of described reaction chamber.
One side the sensor proportional sampling device of described alcohol tester is being structure as a whole of described baffle plate and described bottom inflow hole.
In the utility model when work,, gas is entered by draft tube, when gas through among the figure during 1 indication position narrow down owing to shrink at draft tube caliber near the gas outlet end, gas circuit narrows down, it is big that stream pressure becomes; Because the bottom of reaction chamber is provided with baffle plate, air-flow beat baffle plate right inclined-plane, through the inclined-plane refraction, have a small amount of gas and enter reaction chamber by the gallery between the bottom of baffle plate and described reaction chamber, wherein most of gas is discharged by exhausr port, is designed to the decompression of the air inlet first order herein; This is second level decompression to a small amount of gas enter reaction chamber by air admission hole, gas enter the laggard line stabilization of reaction chamber and and sensor response, wherein by the controlled amount system charge flow rate of control vent port, the utility model is avoided the direct shock transducer of gas, and sensor is impacted; And to stable reaction environment of sensor, an amount of reaction tolerance.
Description of drawings
Fig. 1 is a decomposing schematic representation of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Arrow is that gas moves towards direction among the figure.
Embodiment
As Fig. 1, shown in 2, the sensor proportional sampling device of a kind of alcohol tester of the present utility model, it is made up of draft tube 1 and reaction chamber 2, one end of draft tube 1 is an air intake opening 3, the other end is gas outlet 4, narrow down in draft tube caliber contraction near gas outlet 4 ends, on the caliber that narrows down gradually, be provided with connecting pipe 5, reaction chamber 2 is arranged in the connecting pipe 5 and with tube wall and seals, the bottom of connecting pipe 5 is near extending under 4 side direction of gas outlet, make the lower end of connecting pipe 5 concordant with the bottom lower surface of reaction chamber 2, the bottom of reaction chamber 2 is provided with air admission hole 6, and 6 are provided with baffle plate 7 outside air admission hole, one side being structure as a whole of baffle plate 7 and bottom inflow hole 6, form a gallery 8 between the bottom of baffle plate 7 and reaction chamber 2, this gallery 8 is communicated with air admission hole 6 and draft tube 1.
In the utility model when work,, gas is entered by draft tube, when gas through among the figure during 1 indication position narrow down owing to shrink at draft tube caliber near the gas outlet end, gas circuit narrows down, it is big that stream pressure becomes; Because the bottom of reaction chamber is provided with baffle plate, air-flow beat baffle plate right inclined-plane, through the inclined-plane refraction, have a small amount of gas and enter reaction chamber by the gallery between the bottom of baffle plate and described reaction chamber, wherein most of gas is discharged by exhausr port, is designed to the decompression of the air inlet first order herein; This is second level decompression to a small amount of gas enter reaction chamber by air admission hole, gas enter the laggard line stabilization of reaction chamber and and sensor response, wherein by the controlled amount system charge flow rate of control vent port, the utility model is avoided the direct shock transducer of gas, and sensor is impacted; And give stable reaction environment of sensor, and an amount of reaction tolerance, thus make sensor test more accurate.
More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (3)
1, a kind of sensor proportional sampling device of alcohol tester, it is characterized in that: it is made up of draft tube and reaction chamber, one end of described draft tube is an air intake opening, the other end is the gas outlet, narrow down in draft tube caliber contraction near the gas outlet end, on the caliber that narrows down gradually, be provided with connecting pipe, described reaction chamber is arranged in the described connecting pipe and with tube wall and seals, the bottom of described reaction chamber is provided with air admission hole, outside described air admission hole, be provided with baffle plate, form a gallery between the bottom of described baffle plate and described reaction chamber, this gallery is communicated with described air admission hole and described draft tube.
2, the sensor proportional sampling device of alcohol tester according to claim 1 is characterized in that: extend downwards near air outlet side the bottom of described connecting pipe, and the lower end of described connecting pipe is concordant with the bottom lower surface of described reaction chamber.
3, the sensor proportional sampling device of alcohol tester according to claim 1 is characterized in that: one side being structure as a whole of described baffle plate and described bottom inflow hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160565 CN200975959Y (en) | 2006-11-30 | 2006-11-30 | Sensor quantitative sampler of alcohol tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160565 CN200975959Y (en) | 2006-11-30 | 2006-11-30 | Sensor quantitative sampler of alcohol tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975959Y true CN200975959Y (en) | 2007-11-14 |
Family
ID=38902243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160565 Expired - Fee Related CN200975959Y (en) | 2006-11-30 | 2006-11-30 | Sensor quantitative sampler of alcohol tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975959Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344775A (en) * | 2013-06-28 | 2013-10-09 | 项泽玉 | Exhaled gas voltage stabilization detection air cavity |
| CN105092644A (en) * | 2015-07-30 | 2015-11-25 | 武汉飞恩微电子有限公司 | Gas blowing channel structure of alcohol concentration sensor |
| CN105527330A (en) * | 2016-01-13 | 2016-04-27 | 邢皓宇 | Alcohol tester |
-
2006
- 2006-11-30 CN CN 200620160565 patent/CN200975959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344775A (en) * | 2013-06-28 | 2013-10-09 | 项泽玉 | Exhaled gas voltage stabilization detection air cavity |
| CN105092644A (en) * | 2015-07-30 | 2015-11-25 | 武汉飞恩微电子有限公司 | Gas blowing channel structure of alcohol concentration sensor |
| CN105527330A (en) * | 2016-01-13 | 2016-04-27 | 邢皓宇 | Alcohol tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 169, Cedar Road, Zhengzhou hi tech Development Zone, Henan, Zhengzhou: 450000 Patentee after: Henan Hanwei Electronics Co., Ltd. Address before: No. 169, Cedar Road, Zhengzhou hi tech Development Zone, Henan, Zhengzhou: 450000 Patentee before: Henan Hanwei Electronics Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20131130 |