CN102890015B - Anti-dust and reversed adsorption-proof device - Google Patents
Anti-dust and reversed adsorption-proof device Download PDFInfo
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- CN102890015B CN102890015B CN201210178312.2A CN201210178312A CN102890015B CN 102890015 B CN102890015 B CN 102890015B CN 201210178312 A CN201210178312 A CN 201210178312A CN 102890015 B CN102890015 B CN 102890015B
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Abstract
The invention discloses an anti-dust and reversed adsorption-proof device, which is connected between an adsorbing bottle and a sampling apparatus so as to prevent the dust from entering the sampling apparatus and prevent the adsorbing liquid in the adsorbing bottle from being reversely adsorbed into the sampling apparatus; the anti-dust and reversed adsorption-proof device comprises a front shell body and a rear shell body both of which are injection-moulded by plastics; a first containing groove is formed on the inner surface of the front shell body; a second containing groove which is matched with the first containing groove is formed on the inner surface of the rear shell body; the anti-dust and reversed adsorption-proof device further comprises a filter film which is arranged between the first containing groove and the second containing groove; the first containing groove and the second containing groove are connected by sealed means to form an accommodating cabin; the front shell body is provided with a gas inlet nozzle which is communicated with the first containing groove, and the rear shell body is provided with a gas outlet nozzle which is communicated with the second containing groove; the gas from the adsorbing bottle enters the first containing groove from the gas inlet nozzle, filtered by the filter film, enters the second containing groove and then is delivered to the sampling apparatus by the gas outlet nozzle. The anti-dust and reversed adsorption-proof device is simply structured and convenient to detach and clean.
Description
Technical field
The present invention relates to a kind of atmospheric sampling equipment field, particularly relate to the dust-proof suck-back device that a kind of structure is simple, be convenient to disassembly, cleaning.
Background technology
Air sampler used by Environment features, in most of the cases needs to use absorption bottle, anti-suck bottle meanwhile can be coordinated to use together.But due to its frequent field work during actual use, its anti-suck bottle is again glass manufacture, be therefore damaged most probably when transporting, and it can not fix together with instrument, therefore also there is inconvenience in use.
The valve of sampling thief is generally all provided with opening upward, so see in the process of sampling, dust in air directly can enter into sampling thief, in the anti-suck bottle of prior art, do not possess this technical characteristic dust-proof, when its enter quantity to a certain extent time can cause the blocking of valve, sampling flow is reduced, and image data is inaccurate.
When carrying out Environment features, need to use absorption bottle, and need to coordinate anti-suck bottle to use together, otherwise absorbing liquid can be sucked instrument when instrument starts and cause it to damage.
In most cases, the support of air sampler not for displaying bottle, even if having, its support is also an independent accessory, and the accessory needed when so just causing actual use is a lot.And support has larger size, it is very inconvenient that this also can make it transport, just more obvious when especially number of samples is many.
Generally anti-suck bottle is glassware, and this will make to require extreme care when transporting and use, otherwise will cause the damage of bottle, and this makes troubles also to sampling operation personnel, and its work efficiency is decreased.
Therefore, the dust-proof suck-back device that a kind of structure is simple, be convenient to disassembly, cleaning is needed badly.
Utility model content
The object of this invention is to provide the dust-proof suck-back device that a kind of structure is simple, be convenient to disassembly, cleaning.
To achieve these goals, technical scheme of the present invention is: provide a kind of dust-proof suck-back device, for being connected between absorption bottle and sampling thief, prevent dust from entering sampling thief and preventing the absorbing liquid in absorption bottle from being entered sampling thief by suck-back, comprise: procapsid and back casing, described procapsid and back casing all adopt injection molding, the inside surface of described procapsid offers the first storage tank, the inside surface of described back casing offers the second storage tank matched with described first storage tank, it also comprises filtering membrane, described filtering membrane is arranged between described first storage tank and the second storage tank, described first storage tank and the second storage tank sealed engagement form collecting storehouse, described procapsid is provided with the admission piece be communicated with described first storage tank, described back casing is provided with the outlet nozzle be communicated with described second storage tank, the gas that absorption bottle exports enters described first storage tank by described admission piece, and through being delivered to sampling thief by described outlet nozzle enter described second storage tank after described filtering membrane filters after.
The rectangular shape of described procapsid, and the rounded shape of described first storage tank, described admission piece is arranged on the top end face of described procapsid.
Described back casing is rectangular-shaped in what match with described procapsid, and described second storage tank is in the toroidal matched with described first storage tank, and described outlet nozzle is arranged on the top end face of described back casing.
Around described first storage tank bottom land outward flange one Zhou Dynasty described in the second storage tank direction be convexly equipped with integrated the first flange for placing described filtering membrane with the inwall of described first storage tank, the inside surface of described first flange and described procapsid is formed stepped.
The inside surface of housing in the rear, enclosing around described second storage tank one is convexly equipped with for the second flange with described first storage tank cooperation towards described first storage tank direction, described filtering membrane one side is conflicted with described first flange, and another side and described second flange are conflicted.
Also include O-ring seal, the inside surface of described back casing is also provided with seal groove, described O-ring seal is contained in described seal groove, and conflicts with the bottom land of described seal groove and the inside surface of described procapsid respectively.
Described back casing is also provided with two symmetrical trailing arms, the end of described trailing arm forms bayonet socket, and the end of described trailing arm all offer for described dust-proof suck-back device is hanging on sampling thief lock slots.
Described trailing arm and described back casing are integrated formed structure.
Described procapsid offers screw hole uniformly, and on described back casing, corresponding described screw hole is inlaid with nut, and described procapsid and back casing is tightened through described screw hole and described nut screw connection by screw.
The bottom land of described first storage tank and the second storage tank is all convexly equipped with the support column for supporting described filtering membrane.
Compared with prior art, in the dust-proof suck-back device of the present invention, comprise filtering membrane, described filtering membrane is arranged between described first storage tank and the second storage tank, described first storage tank and the second storage tank sealed engagement form collecting storehouse, described procapsid is provided with the admission piece be communicated with described first storage tank, described back casing is provided with the outlet nozzle be communicated with described second storage tank, the gas that absorption bottle exports enters described first storage tank by described admission piece, and through being delivered to sampling thief by described outlet nozzle enter described second storage tank after described filtering membrane filters after.The dust-proof suck-back device of the present invention adopts injection molding, material is impact resistant comparatively, not fragile, the dust-proof suck-back device of the present invention adopts described procapsid and the separable form of back casing, when actual samples, dust can be filtered by described filtering membrane, and when finding suck-back phenomenon, absorbing liquid will rest in described collecting storehouse, in addition, need the dust-proof suck-back device of cleaning the present invention can simply dismantle described procapsid and back casing, clean, therefore maintain easily simple, be convenient to recycling.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the perspective view of an embodiment of the dust-proof suck-back device of the present invention.
Fig. 2 is the decomposition view of dust-proof suck-back device as shown in Figure 1.
Fig. 3 is the view of an angle of dust-proof suck-back device as shown in Figure 1.
Fig. 4 be dust-proof suck-back device as shown in Figure 3 along A-A direction cross section view.
Fig. 5 is the structural representation of the procapsid of dust-proof suck-back device as shown in Figure 1.
Illustrate: dust-proof suck-back device 100, procapsid 10, inside surface 10a, the first storage tank 11, admission piece 12, the first flange 13, back casing 20, inside surface 20a, second storage tank 21, outlet nozzle 22, the second flange 23, filtering membrane 30, O-ring seal 40, seal groove 41, trailing arm 50, bayonet socket 51, lock slots 52, screw hole 60, nut 70, support column 80.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, element numbers similar in accompanying drawing represents similar element.As mentioned above, as Figure 1-5, the dust-proof suck-back device 100 that the present embodiment provides, for being connected between absorption bottle and sampling thief, prevent dust from entering sampling thief and preventing the absorbing liquid in absorption bottle from being entered sampling thief by suck-back, comprise: procapsid 10 and back casing 20, described procapsid 10 and back casing 20 are bonded with each other, described procapsid 10 and back casing 20 all adopt injection molding, therefore comparatively withstand voltage, can not be in use, because operating personnel make this device broken slightly because of carelessness, described procapsid 10 has inside surface 10a, and offer the first storage tank 11 by the inside surface 10a of described procapsid 10, described back casing 20 has inside surface 20a, and offer the second storage tank 21 matched with described first storage tank 11, described first storage tank 11 and the second storage tank 21 relative bonding, described filtering membrane 30 is arranged between described first storage tank 11 and the second storage tank 21, therefore, the sample gas of described first storage tank 11 inside is filtered through described filtering membrane 30 before entering described second storage tank 21, dust in sample gas will be filtered, described first storage tank 11 and the second storage tank 21 sealed engagement form collecting storehouse, described procapsid 10 is provided with the admission piece 12 be communicated with described first storage tank 11, described back casing 20 is provided with the outlet nozzle 22 be communicated with described second storage tank 21, the gas that absorption bottle exports enters described first storage tank 11 by described admission piece 12, and through being delivered to sampling thief by described outlet nozzle 22 enter described second storage tank 21 after described filtering membrane 30 filters after.Therefore, if there is suck-back phenomenon, it is inner that absorbing liquid will rest on described collecting storehouse, when needing to clean described dust-proof suck-back device 100, only described procapsid 10 and back casing 20 need be dismantled, and easy removal, easily cleans.
As shown in Figure 5, the rectangular shape of described procapsid 10, and the rounded shape of described first storage tank 11, described admission piece 12 is arranged on the top end face of described procapsid 10, and with described procapsid 10 in integrated formed structure.
As shown in Figure 2, described back casing 20 is rectangular-shaped in what match with described procapsid 10, and described second storage tank 21 is in the toroidal matched with described first storage tank 11, described outlet nozzle 22 is arranged on the top end face of described back casing 20, and with described back casing 20 in integrated formed structure.
As Fig. 2, 3, shown in 5, around described first storage tank 11 bottom land outward flange one Zhou Dynasty described in the second storage tank 21 direction be convexly equipped with integrated the first flange 13 for placing described filtering membrane 30 with the inwall of described first storage tank 11, the top end face of described first flange 13 does not exceed the inside surface 10a of described procapsid 10, and formed stepped with the inside surface 10a of described procapsid 10, and the actual size of the external diameter of described filtering membrane 30 is slightly smaller than the internal diameter of described first storage tank 11, described filtering membrane 30 is made to be placed on described first flange 13 stably, not easily loosen.
As shown in Figure 2, the inside surface 20a of housing 20 in the rear, enclosing around described second storage tank 21 1 is convexly equipped with for the second flange 23 with described first storage tank 11 cooperation towards described first storage tank 11 direction, described second flange 23 protrudes out the inside surface 20a for described back casing 20, described filtering membrane 30 one side is conflicted with described first flange 13, and another side and described second flange 23 are conflicted.
As shown in Figure 2,4, described dust-proof suck-back device 100 is also provided with O-ring seal 40, described O-ring seal 40 is made up of corrosion resistance quality of rubber materials, on the inside surface 20a of described back casing 20, also corresponding described O-ring seal 40 is provided with seal groove 41, described O-ring seal 40 is contained in described seal groove 41, and conflicts with the bottom land of described seal groove 41 and the inside surface 10a of described procapsid 10 respectively.By arranging described O-ring seal 40, described procapsid 10 and back casing 20 is made to reach hermetic seal state when joint.
As Fig. 1, shown in 2 and 3, described back casing 20 is also provided with two symmetrical trailing arms 50, described trailing arm 50 extends towards the direction contrary with described procapsid 10, and be bent to form bayonet socket 51 in opposite directions at end, and the end of described trailing arm 50 all offer for described dust-proof suck-back device 100 is hanging on sampling thief lock slots 52, self locking is suspended on sampling thief by described lock slots 52 by described dust-proof suck-back device 100, make in atmospheric sampling process, decrease subsidiary fixture or other holding units due to described dust-proof suck-back device 100, extra burden can not be brought for atmospheric sampling staff.
As shown in Figure 1, described trailing arm 50 and described back casing 20 are in integrated formed structure.
As shown in Figure 3, described procapsid 10 offers screw hole 60 uniformly, described screw hole 60 is through hole, and on described back casing 20, corresponding described screw hole 60 is inlaid with nut 70, and to be coordinated with described nut 70 through described screw hole 60 by screw and described procapsid 10 and back cover 20 body are tightened.
As shown in Figure 4, the bottom land of described first storage tank 11 and the second storage tank 21 is all convexly equipped with the support column 80 for supporting described filtering membrane 30.
Composition graphs 1-5, the dust-proof suck-back device 100 of the present invention, filtering membrane 30, described filtering membrane 30 is arranged between described first storage tank 11 and the second storage tank 21, described first storage tank 11 and the second storage tank 21 sealed engagement form collecting storehouse, described procapsid 10 is provided with the admission piece 12 be communicated with described first storage tank 11, described back casing 20 is provided with the outlet nozzle 22 be communicated with described second storage tank 21, the gas that absorption bottle exports enters described first storage tank 11 by described admission piece 12, and through being delivered to sampling thief by described outlet nozzle 22 enter described second storage tank 21 after described filtering membrane 30 filters after.The dust-proof suck-back device 100 of the present invention adopts injection molding, material is impact resistant comparatively, not fragile, the dust-proof suck-back device of the present invention 100 adopts described procapsid 10 and the separable form of back casing 20, when actual samples, dust can be filtered by described filtering membrane 30, and when finding suck-back phenomenon, absorbing liquid will rest in described collecting storehouse, in addition, need the dust-proof suck-back device of cleaning the present invention 100 simply can dismantle described procapsid 10 and back casing 20, clean, therefore maintain easily simple, be convenient to recycling.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (8)
1. a dust-proof suck-back device, for being connected between absorption bottle and sampling thief, prevent dust from entering sampling thief and preventing the absorbing liquid in absorption bottle from being entered sampling thief by suck-back, comprise: procapsid and back casing, described procapsid and back casing all adopt injection molding, the inside surface of described procapsid offers the first storage tank, the inside surface of described back casing offers the second storage tank matched with described first storage tank, it is characterized in that: also comprise filtering membrane, described filtering membrane is arranged between described first storage tank and the second storage tank, described first storage tank and the second storage tank sealed engagement form collecting storehouse, described procapsid is provided with the admission piece be communicated with described first storage tank, described back casing is provided with the outlet nozzle be communicated with described second storage tank, the gas that absorption bottle exports enters described first storage tank by described admission piece, and through being delivered to sampling thief by described outlet nozzle enter described second storage tank after described filtering membrane filters after, described procapsid offers screw hole uniformly, on described back casing, corresponding described screw hole is inlaid with nut, and described procapsid and back casing are tightened through described screw hole and described nut screw connection by screw,
The rectangular shape of described procapsid, and the rounded shape of described first storage tank, described admission piece is arranged on the top end face of described procapsid.
2. dust-proof suck-back device as claimed in claim 1, it is characterized in that: described back casing is rectangular-shaped in what match with described procapsid, and described second storage tank is in the toroidal matched with described first storage tank, described outlet nozzle is arranged on the top end face of described back casing.
3. dust-proof suck-back device as claimed in claim 1, it is characterized in that: around described first storage tank bottom land outward flange one Zhou Dynasty described in the second storage tank direction be convexly equipped with integrated the first flange for placing described filtering membrane with the inwall of described first storage tank, the inside surface of described first flange and described procapsid is formed stepped.
4. dust-proof suck-back device as claimed in claim 3, it is characterized in that: the inside surface of housing in the rear, enclosing around described second storage tank one is convexly equipped with for the second flange with described first storage tank cooperation towards described first storage tank direction, described filtering membrane one side is conflicted with described first flange, and another side and described second flange are conflicted.
5. dust-proof suck-back device as claimed in claim 1, it is characterized in that: also include O-ring seal, the inside surface of described back casing is also provided with seal groove, and described O-ring seal is contained in described seal groove, and conflicts with the bottom land of described seal groove and the inside surface of described procapsid respectively.
6. dust-proof suck-back device as claimed in claim 1, it is characterized in that: described back casing is also provided with two symmetrical trailing arms, the end of described trailing arm forms bayonet socket, and the end of described trailing arm all offer for described dust-proof suck-back device is hanging on sampling thief lock slots.
7. dust-proof suck-back device as claimed in claim 6, is characterized in that: described trailing arm and described back casing are integrated formed structure.
8. dust-proof suck-back device as claimed in claim 1, is characterized in that: the bottom land of described first storage tank and the second storage tank is all convexly equipped with the support column for supporting described filtering membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178312.2A CN102890015B (en) | 2012-05-24 | 2012-05-24 | Anti-dust and reversed adsorption-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178312.2A CN102890015B (en) | 2012-05-24 | 2012-05-24 | Anti-dust and reversed adsorption-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102890015A CN102890015A (en) | 2013-01-23 |
| CN102890015B true CN102890015B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210178312.2A Active CN102890015B (en) | 2012-05-24 | 2012-05-24 | Anti-dust and reversed adsorption-proof device |
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| CN (1) | CN102890015B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105056648B (en) * | 2015-08-17 | 2017-03-15 | 麦克传感器股份有限公司 | A kind of dustproof filter mouth |
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| US4362047A (en) * | 1981-02-23 | 1982-12-07 | Gelman Sciences Inc. | Filter device for cigarette testing |
| US4568520A (en) * | 1982-06-05 | 1986-02-04 | Ismatec Sa | Apparatus for the automated production of a series of samples for the analysis of mixtures |
| US4764344A (en) * | 1984-10-25 | 1988-08-16 | Bbc Brown, Boveri & Company Ltd. | Device for the determination of the quantitative composition of gases |
| CN2096753U (en) * | 1991-04-26 | 1992-02-19 | 聂鑫淼 | Medium flow total suspended particle universal sample cover |
| CN2876759Y (en) * | 2005-08-29 | 2007-03-07 | 王丕征 | Back-suction-proof air sampler |
| CN101915681A (en) * | 2010-07-09 | 2010-12-15 | 北京雪迪龙科技股份有限公司 | Solid particulate matter collection device |
| CN202614564U (en) * | 2012-05-24 | 2012-12-19 | 深圳国技仪器有限公司 | Dustproof inverse-suction-preventing device |
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| JPS55138637A (en) * | 1979-04-14 | 1980-10-29 | Horiba Ltd | Pretreating apparatus for analyzing high-temperature high-moisture gas |
| JPH02159559A (en) * | 1988-12-12 | 1990-06-19 | Mitsui Eng & Shipbuild Co Ltd | Adjusting method of sample in automatic analysis of sulfur dioxide |
| CN2796808Y (en) * | 2005-05-16 | 2006-07-19 | 范晓秋 | Gas absorption device capable of preventing back suction |
| JP2011149727A (en) * | 2010-01-19 | 2011-08-04 | Babcock Hitachi Kk | Method and instrument for measuring metal mercury |
| CN202078843U (en) * | 2011-05-23 | 2011-12-21 | 青岛众瑞智能仪器有限公司 | Anti-siphon gas dryer |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4362047A (en) * | 1981-02-23 | 1982-12-07 | Gelman Sciences Inc. | Filter device for cigarette testing |
| US4568520A (en) * | 1982-06-05 | 1986-02-04 | Ismatec Sa | Apparatus for the automated production of a series of samples for the analysis of mixtures |
| US4764344A (en) * | 1984-10-25 | 1988-08-16 | Bbc Brown, Boveri & Company Ltd. | Device for the determination of the quantitative composition of gases |
| CN2096753U (en) * | 1991-04-26 | 1992-02-19 | 聂鑫淼 | Medium flow total suspended particle universal sample cover |
| CN2876759Y (en) * | 2005-08-29 | 2007-03-07 | 王丕征 | Back-suction-proof air sampler |
| CN101915681A (en) * | 2010-07-09 | 2010-12-15 | 北京雪迪龙科技股份有限公司 | Solid particulate matter collection device |
| CN202614564U (en) * | 2012-05-24 | 2012-12-19 | 深圳国技仪器有限公司 | Dustproof inverse-suction-preventing device |
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| CN102890015A (en) | 2013-01-23 |
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