CN102890015A - Anti-dust and reversed adsorption-proof device - Google Patents
Anti-dust and reversed adsorption-proof device Download PDFInfo
- Publication number
- CN102890015A CN102890015A CN2012101783122A CN201210178312A CN102890015A CN 102890015 A CN102890015 A CN 102890015A CN 2012101783122 A CN2012101783122 A CN 2012101783122A CN 201210178312 A CN201210178312 A CN 201210178312A CN 102890015 A CN102890015 A CN 102890015A
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- storage tank
- suck
- dustproof
- procapsid
- back casing
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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, relate in particular to a kind of simple in structure, dustproof suck-back device of being convenient to disassembly, cleaning.
Background technology
The environment used air sampler of sampling in most of the cases needs to use absorption bottle, meanwhile can cooperate the anti-suck bottle to use together.Yet owing to its frequent field work, its anti-suck bottle is again glass manufacture during actual the use, therefore be damaged most probably when transportation, and it can not be fixing with instrument, therefore in use also existence inconvenience.
The valve of sampling thief generally all is provided with opening up, so in the process of sampling, see, airborne dust can directly enter into sampling thief, in the anti-suck bottle of prior art, not possess dustproof this technical characterictic, when it enters the obstruction that quantity can cause valve to a certain degree the time, so that sampling flow reduces, image data is inaccurate.
When carrying out environment when sampling, need to use absorption bottle, and need to cooperate the anti-suck bottle to use together, otherwise can sucking instrument to absorption liquid when starting, instrument causes its damage.
In most cases, air sampler is not used for displaying the support of bottle, even if having, its support also is an independent accessory, and the accessory that has needed when so just having caused actual the use is a lot.And support has larger size, and this also can make its transportation very inconvenient, and is just more obvious when especially number of samples is many.
The anti-suck bottle is glassware generally speaking, and this will otherwise will cause the damage of bottle so that require extremely carefully in transportation with when using, and this makes troubles also for the sampling operation personnel, so that its work efficiency decreases.
Therefore, need a kind of simple in structure, dustproof suck-back device of being convenient to disassembly, cleaning badly.
The utility model content
The purpose of this invention is to provide a kind of simple in structure, dustproof suck-back device of being convenient to disassembly, cleaning.
To achieve these goals, technical scheme of the present invention is: a kind of dustproof suck-back device is provided, be used for being connected between absorption bottle and the sampling thief, prevent that dust from entering sampling thief and preventing that the absorption liquid in the 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 that matches with described the first storage tank, it also comprises filtering membrane, described filtering membrane is arranged between described the first storage tank and the second storage tank, described the first storage tank and the second storage tank sealed engagement form accommodates the storehouse, described procapsid is provided with the admission piece that is communicated with described the first storage tank, described back casing is provided with the outlet nozzle that is communicated with described the second storage tank, the gas of absorption bottle output enters described the first storage tank by described admission piece, and through entering described the second storage tank by being delivered to sampling thief by described outlet nozzle after the described filtering membrane filtration.
The rectangular shape of described procapsid, and the rounded shape of described the first storage tank, described admission piece is arranged on the top end face of described procapsid.
Described back casing is match with described procapsid rectangular-shaped, and described the second storage tank is the toroidal that matches with described the first storage tank, and described outlet nozzle is arranged on the top end face of described back casing.
Convex with and integrated the first flange be used to placing described filtering membrane of the inwall of described the first storage tank around described the second storage tank direction one Zhou Dynasty of bottom land outward flange of described the first storage tank, the inside surface of described the first flange and described procapsid forms stepped.
Inside surface at described back casing, convex with for the second flange that cooperates with described the first storage tank towards described the first storage tank direction around described the second storage tank one circle, described filtering membrane one side is conflicted with described the first flange, and another side and described the second flange are conflicted.
Also include O-ring seal, also be provided with seal groove on the inside surface of described back casing, described O-ring seal is contained in the described seal groove, and conflicts with the bottom land of described seal groove and the inside surface of described procapsid respectively.
Also be provided with two symmetrical trailing arms on the described back casing, the end of described trailing arm forms bayonet socket, and the end of described trailing arm all offer for described dustproof suck-back device is hanging on the sampling thief lock slots.
Described trailing arm and described back casing are integrated formed structure.
Offer uniformly screw hole on the described procapsid, corresponding described screw hole is inlaid with nut on the described back casing, and passes described screw hole by screw and cooperate with described nut described procapsid and back casing are tightened.
The bottom land of described the first storage tank and the second storage tank all convexes be used to the support column that supports described filtering membrane.
Compared with prior art, in the dustproof suck-back device of the present invention, comprise filtering membrane, described filtering membrane is arranged between described the first storage tank and the second storage tank, described the first storage tank and the second storage tank sealed engagement form accommodates the storehouse, described procapsid is provided with the admission piece that is communicated with described the first storage tank, described back casing is provided with the outlet nozzle that is communicated with described the second storage tank, the gas of absorption bottle output enters described the first storage tank by described admission piece, and through entering described the second storage tank by being delivered to sampling thief by described outlet nozzle after the described filtering membrane filtration.The dustproof suck-back device of the present invention adopts injection molding, the more anti-collision of material, not fragile, the dustproof suck-back device of the present invention adopts described procapsid and the separable form of back casing, when actual samples, dust can filter by described filtering membrane, and when finding the suck-back phenomenon, absorption liquid will rest on described accommodating in the storehouse, in addition, need to clean the dustproof suck-back device of the present invention and can simply dismantle described procapsid and back casing, clean, therefore maintain easily simply, be convenient to recycling.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Description of drawings
Fig. 1 is the perspective view of an embodiment of the dustproof suck-back device of the present invention.
Fig. 2 is the decomposition view of dustproof suck-back device as shown in Figure 1.
Fig. 3 is the view of an angle of dustproof suck-back device as shown in Figure 1.
Fig. 4 be as shown in Figure 3 dustproof suck-back device along the A-A direction cross section view.
Fig. 5 is the structural representation of the procapsid of dustproof suck-back device as shown in Figure 1.
Illustrate: dustproof suck-back device 100, procapsid 10, inside surface 10a, the first storage tank 11, admission piece 12, the first flanges 13, back casing 20, inside surface 20a, the second storage tank 21, outlet nozzle 22, the second flanges 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, similar element numbers represents similar element in the accompanying drawing.As mentioned above, shown in Fig. 1-5, the dustproof suck-back device 100 that present embodiment provides, be used for being connected between absorption bottle and the sampling thief, prevent that dust from entering sampling thief and preventing that the absorption liquid in the 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 be not in use, because operating personnel are slightly careless so that this device is broken, 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 that matches with described the first storage tank 11, described the first storage tank 11 and 21 relative bondings of the second storage tank, described filtering membrane 30 is arranged between described the first storage tank 11 and the second storage tank 21, therefore, the sample gas of described the first storage tank 11 inside enters the described filtering membrane 30 of described the second storage tank 21 front processes and filters, dust in the sample gas will be filtered, described the first storage tank 11 and the second storage tank 21 sealed engagement form accommodates the storehouse, described procapsid 10 is provided with the admission piece 12 that is communicated with described the first storage tank 11, described back casing 20 is provided with the outlet nozzle 22 that is communicated with described the second storage tank 21, the gas of absorption bottle output enters described the first storage tank 11 by described admission piece 12, and through entering described the second storage tank 21 by being delivered to sampling thief by described outlet nozzle 22 after described filtering membrane 30 filtrations.Therefore, if the suck-back phenomenon occurs, absorption liquid will rest on the described inside, storehouse of accommodating, in the time of need to cleaning described dustproof suck-back device 100, only need described procapsid 10 and back casing 20 dismountings are got final product, and easy removal, clean easily.
As shown in Figure 5, described procapsid 10 rectangular shapes, and described the first storage tank 11 rounded shapes, described admission piece 12 is arranged on the top end face of described procapsid 10, and is integrated formed structure with described procapsid 10.
As shown in Figure 2, described back casing 20 is match with described procapsid 10 rectangular-shaped, and described the second storage tank 21 is the toroidal that matches with described the first storage tank 11, and described outlet nozzle 22 is arranged on the top end face of described back casing 20, and is integrated formed structure with described back casing 20.
Such as Fig. 2,3, shown in 5, convex with and integrated the first flange 13 be used to placing described filtering membrane 30 of the inwall of described the first storage tank 11 around described the second storage tank 21 directions one Zhou Dynasty of bottom land outward flange of described the first storage tank 11, the top end face of described the first flange 13 does not exceed the inside surface 10a of described procapsid 10, and form 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 the first storage tank 11, so that described filtering membrane 30 is placed on described the first flange 13 stably, be difficult for loosening.
As shown in Figure 2, inside surface 20a at described back casing 20, convex with for the second flange 23 that cooperates with described the first storage tank 11 towards described the first storage tank 11 directions around described the second storage tank 21 1 circle, described the second flange 23 protrudes out the inside surface 20a for described back casing 20, described filtering membrane 30 one sides are conflicted with described the first flange 13, and another side and described the second flange 23 are conflicted.
Shown in Fig. 2,4, described dustproof suck-back device 100 also is provided with O-ring seal 40, described O-ring seal 40 is made by the corrosion resistance quality of rubber materials, the upper also corresponding described O-ring seal 40 of the inside surface 20a of described back casing 20 is provided with seal groove 41, described O-ring seal 40 is contained in the 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 described O-ring seal 40 is set, make described procapsid 10 and back casing 20 when engaging, reach the hermetic seal state.
Such as Fig. 1, shown in 2 and 3, also be provided with two symmetrical trailing arms 50 on the described back casing 20, described trailing arm 50 extends towards the direction opposite with described procapsid 10, and be bent to form in opposite directions endways bayonet socket 51, and the end of described trailing arm 50 all offer for described dustproof suck-back device 100 is hanging on the sampling thief lock slots 52, described dustproof suck-back device 100 locks self by described lock slots 52 and is suspended on the sampling thief, so that in the atmospheric sampling process, reduce the anchor clamps or other holding units that attach owing to described dustproof suck-back device 100, can not bring extra burden for the atmospheric sampling staff.
As shown in Figure 1, described trailing arm 50 and described back casing 20 are integrated formed structure.
As shown in Figure 3, offer uniformly screw hole 60 on the described procapsid 10, described screw hole 60 is through hole, and corresponding described screw hole 60 is inlaid with nut 70 on the described back casing 20, and passes described screw hole 60 by screw and cooperate with described nut 70 described procapsid 10 and back cover 20 bodies are tightened.
As shown in Figure 4, the bottom land of described the first storage tank 11 and the second storage tank 21 all convexes be used to the support column 80 that supports described filtering membrane 30.
In conjunction with Fig. 1-5, the present invention's suck-back device 100 that prevents dust, filtering membrane 30, described filtering membrane 30 is arranged between described the first storage tank 11 and the second storage tank 21, described the first storage tank 11 and the second storage tank 21 sealed engagement form accommodates the storehouse, described procapsid 10 is provided with the admission piece 12 that is communicated with described the first storage tank 11, described back casing 20 is provided with the outlet nozzle 22 that is communicated with described the second storage tank 21, the gas of absorption bottle output enters described the first storage tank 11 by described admission piece 12, and through entering described the second storage tank 21 by being delivered to sampling thief by described outlet nozzle 22 after described filtering membrane 30 filtrations.The dustproof suck-back device 100 of the present invention adopts injection molding, the more anti-collision of material, not fragile, the dustproof suck-back device 100 of the present invention adopts described procapsid 10 and back casing 20 separable forms, when actual samples, dust can filter by described filtering membrane 30, and when finding the suck-back phenomenon, absorption liquid will rest on described accommodating in the storehouse, in addition, need to clean the dustproof suck-back device 100 of the present invention and can simply dismantle described procapsid 10 and back casing 20, clean, therefore maintain easily simply, be convenient to recycling.
Above disclosed only is the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (10)
1. dustproof suck-back device, be used for being connected between absorption bottle and the sampling thief, prevent that dust from entering sampling thief and preventing that the absorption liquid in the 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 that matches with described the first storage tank, it is characterized in that: also comprise filtering membrane, described filtering membrane is arranged between described the first storage tank and the second storage tank, described the first storage tank and the second storage tank sealed engagement form accommodates the storehouse, described procapsid is provided with the admission piece that is communicated with described the first storage tank, described back casing is provided with the outlet nozzle that is communicated with described the second storage tank, the gas of absorption bottle output enters described the first storage tank by described admission piece, and through entering described the second storage tank by being delivered to sampling thief by described outlet nozzle after the described filtering membrane filtration.
2. dustproof suck-back device as claimed in claim 1, it is characterized in that: the rectangular shape of described procapsid, and the rounded shape of described the first storage tank, described admission piece is arranged on the top end face of described procapsid.
3. dustproof suck-back device as claimed in claim 1, it is characterized in that: described back casing is match with described procapsid rectangular-shaped, and described the second storage tank is the toroidal that matches with described the first storage tank, and described outlet nozzle is arranged on the top end face of described back casing.
4. dustproof suck-back device as claimed in claim 1, it is characterized in that: convex with and integrated the first flange be used to placing described filtering membrane of the inwall of described the first storage tank around described the second storage tank direction one Zhou Dynasty of bottom land outward flange of described the first storage tank, the inside surface of described the first flange and described procapsid forms stepped.
5. dustproof suck-back device as claimed in claim 4, it is characterized in that: at the inside surface of described back casing, convex with for the second flange that cooperates with described the first storage tank towards described the first storage tank direction around described the second storage tank one circle, described filtering membrane one side is conflicted with described the first flange, and another side and described the second flange are conflicted.
6. dustproof suck-back device as claimed in claim 1, it is characterized in that: also include O-ring seal, also be provided with seal groove on the inside surface of described back casing, described O-ring seal is contained in the described seal groove, and conflicts with the bottom land of described seal groove and the inside surface of described procapsid respectively.
7. dustproof suck-back device as claimed in claim 1, it is characterized in that: also be provided with two symmetrical trailing arms on the described back casing, the end of described trailing arm forms bayonet socket, and the end of described trailing arm all offer for described dustproof suck-back device is hanging on the sampling thief lock slots.
8. dustproof suck-back device as claimed in claim 7, it is characterized in that: described trailing arm and described back casing are integrated formed structure.
9. dustproof suck-back device as claimed in claim 1, it is characterized in that: offer uniformly screw hole on the described procapsid, corresponding described screw hole is inlaid with nut on the described back casing, and passes described screw hole by screw and cooperate with described nut described procapsid and back casing are tightened.
10. dustproof suck-back device as claimed in claim 1, it is characterized in that: the bottom land of described the first storage tank and the second storage tank all convexes be used to the support column that supports 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 true CN102890015A (en) | 2013-01-23 |
| CN102890015B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056648A (en) * | 2015-08-17 | 2015-11-18 | 麦克传感器股份有限公司 | Dustproof filtering nozzle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55138637A (en) * | 1979-04-14 | 1980-10-29 | Horiba Ltd | Pretreating apparatus for analyzing high-temperature high-moisture gas |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105056648A (en) * | 2015-08-17 | 2015-11-18 | 麦克传感器股份有限公司 | Dustproof filtering nozzle |
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| CN102890015B (en) | 2015-05-27 |
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