CN2168248Y - Automatic valve-opening and valve-closing sampling device - Google Patents
Automatic valve-opening and valve-closing sampling device Download PDFInfo
- Publication number
- CN2168248Y CN2168248Y CN 93243594 CN93243594U CN2168248Y CN 2168248 Y CN2168248 Y CN 2168248Y CN 93243594 CN93243594 CN 93243594 CN 93243594 U CN93243594 U CN 93243594U CN 2168248 Y CN2168248 Y CN 2168248Y
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- CN
- China
- Prior art keywords
- valve
- cylinder
- anger
- mode sampling
- opening
- 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.)
- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an automatic valve-opening and valve-closing two-mode sampling device, belonging to an air detecting tool which is matched with an air detecting pipe to be used. The automatic valve-opening and valve-closing two-mode sampling device comprises an air inlet nozzle, an air outlet nozzle, a cylinder barrel, a cylinder front cover, a cylinder rear cover, a piston, a piston rod, a positioning lockpin, etc. A valve fixing plate is arranged between the rear part of the cylinder front cover and the cylinder barrel. An air inlet valve and an air outlet valve are arranged on the valve fixing plate. A sealing pad with holes is arranged between the valve fixing plate and the cylinder front cover. Two gear position grooves are processed on the piston rod. The automatic valve-opening and valve-closing two-mode sampling device can be matched with an air detecting pipe to carry out air sampling and detecting. The automatic valve-opening and valve-closing two-mode sampling device not only can use vacuum negative pressure suction type detection, but also can use positive pressure sending type detection. The automatic valve-opening and valve-closing two-mode sampling device can conveniently realize carrying out detection when air volume is reduced to 1/2 or is increased for a plurality of times.
Description
The utility model relates to a kind of automatic switch valve two mode sampling thiefs, belongs to and the matching used gas detection instrument of gas detecting tube.
The sampling thief that uses has two kinds at present, and a kind of is the negative pressure of vacuum suction-type, during use detector tube is inserted the air inlet of sampling thief front end and chews, moment pulling sampling thief piston, by the locking device locking, the sampling pump becomes vacuum negative pressure condition, and tested gas enters pump by detector tube.This kind sampling thief need use at the mensuration scene, and needs to wait for certain detection time, when tested gas endangers operator safety, can't bleed earlier, detects with the mode of being pressed into to safe region again.Another kind is that malleation is sent into the formula sampling thief, during use detector tube is linked to each other with the sampling thief gas outlet with thin sebific duct, the actuating three-way valve is chewed the suction pump with tested gas from air inlet earlier, again in required time, the tested gas in the pump is chewed from giving vent to anger discharged and detect by detector tube.Though this kind sampling thief can detect to the safety zone by first gas production sample again, bleeding needs move three-way valve with hand with exhaust, and uses malleation to send into formula, need see constantly during operation that table takes the time, and is easy to generate time error.This sample sampling thief does not have latch gear, can not use the negative pressure of vacuum suction-type.
The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and provide a kind of automatic switch valve two mode sampling thiefs, both can use the negative pressure of vacuum suction-type, can use malleation to send into formula again, valve can close or open automatically, and sampling volume has 1/2 gear when reducing at double, when being multiplied, need not detector tube chewed to pull up from inlet, outlet to connect again, only need a repetitive operation to get final product.
The purpose of this utility model be achieved in that it comprise air inlet chew, give vent to anger chew, cylinder barrel, cylinder protecgulum, cylinder back cover, piston, piston rod, locating detent, handle.The air inlet that is loaded on cylinder protecgulum front portion is chewed and is given vent to anger to chew and is respectively installed with pressure cap, one valve fixed head is housed between the rear portion of cylinder protecgulum and the cylinder barrel, air intake valve is housed and the valve of giving vent to anger on the valve fixed head, one sealing gasket with holes is housed between valve fixed head and the cylinder protecgulum, is processed with two shift slots on the piston rod.
During sampling, pull back piston rod, move behind the piston, locating detent is locked in the piston rod gear groove that needs, tested gas is chewed through air intake valve from air inlet and is entered cylinder barrel, and the valve of giving vent to anger this moment is closed automatically.After sucking the gas of requirement, the propelling piston bar, air intake valve is closed, the valve open of giving vent to anger, gas is chewed discharge through the valve of giving vent to anger from giving vent to anger.Detector tube can be contained in according to circumstances that air inlet is chewed or exhaust is chewed, and carries out negative pressure of vacuum suction-type or malleation and sends into formula and detect.
Compared with prior art, this utility model has the following advantages: it integrates the use-pattern of two kinds of sampling thiefs in the prior art, both can carry out the negative pressure of vacuum suction-type detects, also can carry out malleation and send into the formula detection, because piston rod has two gears, can also be 1/2 or detect when being multiplied sampling volume, advance, the valve automatic switch of giving vent to anger does not need to operate separately, when gathering harmful gas, after can collection in worksite, transfer to safe region and detect, rational in infrastructure, easy to use, volume and weight does not compared with prior art all have increase, is a kind of desirable gas detection kit.
The drawing explanation of accompanying drawing:
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with drawings and Examples in detail the utility model is described in detail:
The utility model comprises that air inlet chews (1), gives vent to anger and chew (2), cylinder barrel (16), cylinder protecgulum (4), cylinder back cover (11), piston (9), piston rod (14), locating detent (12), handle (15).Air inlet is chewed (1) and is given vent to anger and chew the front portion that (2) are loaded on cylinder protecgulum (4), be respectively installed with pressure cap (3) on it, one valve fixed head (6) is housed between the rear portion of cylinder protecgulum (4) and the cylinder barrel (16), air intake valve (8) and the valve of giving vent to anger (5) are housed on the valve fixed head (6), air intake valve (8) is positioned on cylinder barrel (16) one sides of valve fixed head (6), and the valve of giving vent to anger (5) is positioned on the opposite side of valve fixed head (6).One sealing gasket with holes (17) is housed between valve fixed head (6) and the cylinder protecgulum (4), and two holes on it are corresponding with air intake valve (8) and the valve of giving vent to anger (5) respectively.Be processed with two shift slots (10) on the piston rod (14), the position of two gear grooves (10) is that piston (9) was in the rearward end and the centre position of cylinder barrel (16) respectively after itself and locating detent (12) locked just.Between valve fixed head (6) and the cylinder barrel (16) O-ring seal (7) is housed, cylinder back cover (11) is equipped with in cylinder barrel (16) rear end, and locating detent (12) is housed on the cylinder back cover (11), and metering sign board (13) is equipped with in locating detent (12) outside.
During sampling, hold the handle (15) on the piston rod (14), pull back piston rod (14), move after making piston (9), in the shift slot (10) on the piston rod (14) that locating detent (12) is locked in need, tested gas is chewed (1) from air inlet and is entered cylinder barrel (16) through air intake valve (8), and the valve (5) of giving vent to anger this moment is closed automatically.After sucking the gas of requirement, propelling piston bar (14), air intake valve (8) is closed, and the valve of giving vent to anger (5) is opened, and gas is chewed (2) through the valve of giving vent to anger (5) and is discharged from giving vent to anger.Gas detecting tube inserts earlier in the cutting hole (18) on the cylinder head (4), cuts off sealing of two ends, is contained in according to circumstances then that (1) is chewed in air inlet or exhaust is chewed on (2).Chew (1) when going up when being contained in air inlet, tested gas is being inhaled into cylinder barrel (16) before, and pipe detects after testing earlier; Chew (2) when going up when being contained in to give vent to anger, tested gas is chewed (2) through the valve of giving vent to anger (5) and is pressed into detector tube and detects when propelling piston bar (14) from giving vent to anger.When the needs collection is the tested gas of volume 1/2 volume of cylinder barrel (16), piston rod (14) can be locked in the gear groove (10) at its rear portion, when needs detect by side gas at double, can repeat to draw the corresponding number of times of push piston bar (14) to get final product.
Claims (5)
1, a kind of automatic switch valve two mode sampling thiefs, comprise air inlet chew, give vent to anger chew, cylinder barrel, cylinder protecgulum, cylinder back cover, piston, piston rod, locating detent, handle, the air inlet that it is characterized in that being loaded on cylinder protecgulum front portion is chewed and is given vent to anger to chew and is respectively installed with pressure cap, one valve fixed head is housed between the rear portion of cylinder protecgulum and the cylinder barrel, air intake valve is housed and the valve of giving vent to anger on the valve fixed head, one sealing gasket with holes is housed between valve fixed head and the cylinder protecgulum, is processed with two shift slots on the piston rod.
2, automatic switch valve two mode sampling thiefs according to claim 1 is characterized in that between valve fixed head and the cylinder barrel O-ring seal being housed.
3, automatic switch valve two mode sampling thiefs according to claim 1 is characterized in that air intake valve is contained in cylinder barrel one side on the valve fixed head, and the valve of giving vent to anger is contained in the opposite side of valve fixed head.
4, automatic switch valve two mode sampling thiefs according to claim 1 is characterized in that two holes on the sealing gasket with holes are corresponding with the air intake valve and the valve of giving vent to anger respectively.
5, automatic switch valve two mode sampling thiefs according to claim 1 is characterized in that two gear groove positions on the piston rod, are that piston was in the rearward end and the centre position of cylinder barrel respectively after itself and locating detent locked just.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243594 CN2168248Y (en) | 1993-11-02 | 1993-11-02 | Automatic valve-opening and valve-closing sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243594 CN2168248Y (en) | 1993-11-02 | 1993-11-02 | Automatic valve-opening and valve-closing sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168248Y true CN2168248Y (en) | 1994-06-08 |
Family
ID=33817008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93243594 Expired - Fee Related CN2168248Y (en) | 1993-11-02 | 1993-11-02 | Automatic valve-opening and valve-closing sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168248Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907531A (en) * | 2010-07-16 | 2010-12-08 | 浙江大学 | Piston-type underwater free gas sampler and using method thereof |
| CN101995347A (en) * | 2010-11-02 | 2011-03-30 | 北京市劳动保护科学研究所 | Gas sampling device by adopting lever structure |
| CN102012328A (en) * | 2010-11-09 | 2011-04-13 | 北京市劳动保护科学研究所 | Gas sampling device by use of gravity |
| CN102313657A (en) * | 2011-05-19 | 2012-01-11 | 浙江省计量科学研究院 | Mobile piston type natural gas sampling device |
| CN102749227A (en) * | 2012-07-17 | 2012-10-24 | 西华大学 | In-cylinder sampling system and method for internal combustion engine |
| CN103344462A (en) * | 2013-07-17 | 2013-10-09 | 安徽江淮汽车股份有限公司 | Gas sampler with dedusting function as well as gas sampling method |
| CN104344972A (en) * | 2014-11-21 | 2015-02-11 | 成都思达高科软件有限公司 | Portable power-free sampler |
| CN105588737A (en) * | 2014-11-10 | 2016-05-18 | 中国石油化工股份有限公司 | Gas-collecting metering apparatus and metering method being suitable for soluble gas |
| KR20190056498A (en) * | 2017-11-17 | 2019-05-27 | 주식회사 엘지화학 | A sealing-type apparatus for collecting gas filled within a chamber and a method thereof |
-
1993
- 1993-11-02 CN CN 93243594 patent/CN2168248Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907531A (en) * | 2010-07-16 | 2010-12-08 | 浙江大学 | Piston-type underwater free gas sampler and using method thereof |
| CN101907531B (en) * | 2010-07-16 | 2012-03-28 | 浙江大学 | Piston-type underwater free gas sampler and using method thereof |
| CN101995347A (en) * | 2010-11-02 | 2011-03-30 | 北京市劳动保护科学研究所 | Gas sampling device by adopting lever structure |
| CN102012328A (en) * | 2010-11-09 | 2011-04-13 | 北京市劳动保护科学研究所 | Gas sampling device by use of gravity |
| CN102313657A (en) * | 2011-05-19 | 2012-01-11 | 浙江省计量科学研究院 | Mobile piston type natural gas sampling device |
| CN102749227A (en) * | 2012-07-17 | 2012-10-24 | 西华大学 | In-cylinder sampling system and method for internal combustion engine |
| CN103344462A (en) * | 2013-07-17 | 2013-10-09 | 安徽江淮汽车股份有限公司 | Gas sampler with dedusting function as well as gas sampling method |
| CN105588737A (en) * | 2014-11-10 | 2016-05-18 | 中国石油化工股份有限公司 | Gas-collecting metering apparatus and metering method being suitable for soluble gas |
| CN104344972A (en) * | 2014-11-21 | 2015-02-11 | 成都思达高科软件有限公司 | Portable power-free sampler |
| KR20190056498A (en) * | 2017-11-17 | 2019-05-27 | 주식회사 엘지화학 | A sealing-type apparatus for collecting gas filled within a chamber and a method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |