CN215931431U - Multipoint mode is atmospheric collection system for environmental detection - Google Patents
Multipoint mode is atmospheric collection system for environmental detection Download PDFInfo
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- CN215931431U CN215931431U CN202122305379.5U CN202122305379U CN215931431U CN 215931431 U CN215931431 U CN 215931431U CN 202122305379 U CN202122305379 U CN 202122305379U CN 215931431 U CN215931431 U CN 215931431U
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Abstract
The utility model relates to the technical field of environmental detection, and discloses an atmosphere collecting device for multi-point environmental detection, which comprises a sealing box and a collecting bag arranged in the sealing box, wherein an air inlet of the collecting bag is communicated with the outside of the sealing box, one side of the sealing box is connected with an air extracting device, the air extracting device is arranged on one side of the sealing box, when a piston mechanism moves backwards to extract air, an inner cylinder slides backwards under the action of friction force, a first exhaust hole and a second exhaust hole are staggered, so that one end of the inner cylinder forms a closed space, the air in the sealing box is extracted, when the piston mechanism moves forwards, the inner cylinder slides forwards under the action of friction force, at the moment, the first exhaust hole and the second exhaust hole just correspond to each other, and because a one-way air valve is arranged in a connecting pipe, the air in the inner cylinder is exhausted from the first exhaust hole and the second exhaust hole, the second air extraction is convenient.
Description
Technical Field
The utility model relates to the technical field of environment detection, in particular to an atmosphere acquisition device for multi-point environment detection.
Background
One is to make a large amount of air pass through a liquid absorbent or a solid absorbent to enrich pollutants with lower concentration in the atmosphere, such as an air extraction method and a filter membrane method; another is to collect air containing contaminants with a container (glass bottle, plastic bag, etc.); the former measures the average concentration of the pollutants in the atmosphere within the sampling time; the latter measured instantaneous concentrations or average concentrations over a short period of time.
When using the plastic bag to gather the air, prior art places the plastic bag in a seal box, communicate the air inlet and the seal box outside of plastic bag, use the aspiration pump again and take out the air in the seal box slowly, tend to the vacuum state in the seal box, then the external air is full of the plastic bag gradually, the air of gathering this moment is just more according with the standard, but if gather in the place that can't find the power, the aspiration pump then can't use, so need a device that can carry out manual air extraction, use when being convenient for gather.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the multi-point type atmosphere acquisition device for environment detection, and solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a multipoint mode atmosphere collection system for environmental detection, includes the seal box and places the collection bag in the seal box, the air inlet and the seal box outside intercommunication of collection bag, one side of seal box is connected with air exhaust device.
As a preferable technical scheme of the present invention, the air extractor includes an outer cylinder and an inner cylinder, the inner cylinder is slidably connected to an inner wall of the outer cylinder at a peripheral side, the inner cylinder is shorter than the outer cylinder, the outer cylinder is provided with a plurality of first exhaust holes, the inner cylinder is provided with a plurality of second exhaust holes matching with the first exhaust holes, the inner cylinder is slidably connected to a piston mechanism, a connecting pipe communicating with the seal box is inserted into one end of the outer cylinder and one end of the inner cylinder close to the seal box, one end of the outer cylinder far from the seal box is provided with a plurality of first through holes, one end of the inner cylinder far from the seal box is provided with a plurality of second through holes corresponding to the first through holes, the outer cylinder is fixedly connected to the connecting pipe, the inner cylinder is slidably connected to the connecting pipe, and a one-way air valve is disposed in the connecting pipe.
As a preferable technical scheme of the present invention, the piston mechanism includes a piston head, one side of the piston head is rotatably connected with a threaded rod, one end of the outer cylinder and one end of the inner cylinder are provided with a nut in a penetrating manner, the outer cylinder and the nut are fixedly connected, the inner cylinder and the nut are slidably connected, the threaded rod is provided with a nut in a penetrating manner and is in threaded connection with the nut, and one end of the threaded rod, which is provided with the nut in a penetrating manner, is fixedly connected with a rotary table.
In a preferred embodiment of the present invention, the gap between the first exhaust holes is not smaller than the diameter of the first exhaust holes, and the length difference between the outer cylinder and the inner cylinder is larger than the diameter of the first exhaust holes and smaller than the gap between the first exhaust holes.
As a preferable technical scheme of the utility model, the outer side of the nut is provided with a limiting groove, the sliding connection part of the inner cylinder and the nut is provided with a limiting tooth matched with the limiting groove, the limiting tooth is fixedly connected with the inner cylinder, and the limiting tooth is connected in the limiting groove in a sliding manner.
As a preferable technical scheme of the utility model, the turntable is sleeved with an anti-slip sleeve, and the anti-slip sleeve is made of soft rubber materials.
(III) advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
1. set up air exhaust device through one side at the seal box, when piston mechanism moves backward and bleeds, the inner tube is under the effect of frictional force, slide to the rear, then first exhaust hole staggers with the second exhaust hole, the one end that makes the inner tube forms an airtight space, thereby extract the air in the seal box, when piston mechanism moves forward, the inner tube is under the effect of frictional force, slide to the front, first exhaust hole and second exhaust hole just correspond this moment, because be provided with one-way pneumatic valve in the connecting pipe, so air in the inner tube is discharged from first exhaust hole and second exhaust hole, be convenient for bleed for the second time.
2. Through set up the threaded rod on piston mechanism, threaded connection and the nut that urceolus and inner tube are connected on the threaded rod, can drive the piston head back-and-forth movement through rotating the threaded rod, solve when bleeding harder and exert oneself inhomogeneous make the gaseous not enough standard problem of gathering.
Drawings
FIG. 1 is a schematic structural diagram of an atmospheric collection device for multi-point environmental testing according to the present invention;
FIG. 2 is a schematic structural diagram of an air exhaust device of the multi-point atmosphere collection device for environmental detection according to the present invention;
FIG. 3 is a schematic structural diagram of an air extractor of the multi-point atmospheric sampling device for environmental monitoring according to the present invention;
FIG. 4 is a schematic structural diagram of a piston mechanism in the multi-point environment detecting atmosphere collecting device according to the present invention
FIG. 5 is a perspective view of an inner cylinder of the multi-point atmospheric sampling device for environmental testing according to the present invention;
FIG. 6 is a perspective view of an outer cylinder of the atmospheric collection device for multipoint environment sensing of the present invention;
fig. 7 is a cross-sectional perspective view of a nut in the multi-point atmosphere collection device for environmental detection according to the present invention.
In the figure: 1. a sealing box; 2. collecting bags; 3. an air extraction device; 301. a first through hole; 302. a second through hole; 4. a connecting pipe; 5. a one-way air valve; 6. an outer cylinder; 601. a first exhaust port; 7. an inner barrel; 701. a second vent hole; 702. limiting teeth; 8. a piston mechanism; 9. a nut; 901. a limiting groove; 10. a threaded rod; 11. a turntable; 12. a piston head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1-7: the utility model provides a multipoint mode atmosphere collection system for environmental detection, includes seal box 1 and places collection bag 2 in seal box 1, gathers bag 2's air inlet and the 1 outside intercommunication of seal box, and one side of seal box 1 is connected with air exhaust device 3.
Wherein, the air extractor 3 comprises an outer cylinder 6 and an inner cylinder 7, the periphery of the inner cylinder 7 is slidably connected with the inner wall of the outer cylinder 6, the length of the inner cylinder 7 is shorter than that of the outer cylinder 6, the inner cylinder 7 is convenient to slide in the outer cylinder 6, the outer cylinder 6 is provided with a plurality of first exhaust holes 601, the inner cylinder 7 is provided with a plurality of second exhaust holes 701 matched with the first exhaust holes 601, the inner cylinder 7 is slidably connected with a piston mechanism 8, one ends of the outer cylinder 6 and the inner cylinder 7, which are close to the seal box 1, are provided with a connecting pipe 4 communicated with the seal box 1 in a penetrating manner, one end of the outer cylinder 6, which is far away from the seal box 1, is provided with a plurality of first through holes 301, one end of the inner cylinder 7, which is far away from the seal box 1, is provided with a plurality of second through holes 302 corresponding to the first through holes 301, so that when the piston mechanism 8 moves in the inner cylinder 7, the first through holes 301 and the second through holes 302 can enable one end of the inner cylinder 7 to exchange gas with the outside, the outer cylinder 6 is fixedly connected with the connecting pipe 4, the inner cylinder 7 is connected with the connecting pipe 4 in a sliding way, and the connecting pipe 4 is internally provided with a one-way air valve 5.
Wherein, piston mechanism 8 includes piston head 12, one side of piston head 12 is rotated and is connected with threaded rod 10, nut 9 is worn to be equipped with by the one end of urceolus 6 and inner tube 7, urceolus 6 sets up with nut 9 fixed connection, inner tube 7 sets up with nut 9 sliding connection, be convenient for inner tube 7 slides in urceolus 6, nut 9 and nut 9 threaded connection are worn to establish by threaded rod 10, threaded rod 10 wears to establish nut 9's one end fixedly connected with carousel 11, it rotates to drive threaded rod 10 through rotating carousel 11, threaded rod 10 rotates and drives piston head 12 and rotate and the back-and-forth movement, thereby bleed seal box 1.
Wherein, the gap between the first exhaust holes 601 is not smaller than the diameter of the first exhaust holes 601, the length difference between the outer cylinder 6 and the inner cylinder 7 is not smaller than the diameter of the first exhaust holes 601 and not larger than the gap between the first exhaust holes 601, and when the inner cylinder 7 and the outer cylinder 6 slide, the first exhaust holes 601 and the second exhaust holes 701 completely stagger, so that the inner cylinder 7 presents a sealed state.
The outer side of the nut 9 is provided with a limiting groove 901, the sliding connection part of the inner cylinder 7 and the nut 9 is provided with a limiting tooth 702 matched with the limiting groove 901, the limiting tooth 702 is fixedly connected with the inner cylinder 7, the limiting tooth 702 is slidably connected in the limiting groove 901, and when the outer cylinder 6 and the inner cylinder 7 rotate, the first through hole 301 and the second through hole 302 are not staggered and aligned, so that one end of the inner cylinder 7 is influenced to exchange with external gas.
Wherein, the turntable 11 is sleeved with an anti-slip sleeve, and the anti-slip sleeve is made of soft rubber materials, so that the turntable 11 can be conveniently rotated.
The working principle is as follows: when the sealed box 1 needs to be pumped, the rotary disc 11 is rotated, the rotary disc 11 drives the threaded rod 10 to rotate, under the action of the nut 9, the threaded rod 10 drives the piston head 12 to move, the piston head 12 drives the inner cylinder 7 to move backwards under the action of friction force, the first exhaust hole 601 and the second exhaust hole 701 are staggered, one end of the inner cylinder 7 is in a sealed state, and therefore the effect of pumping the sealed box 1 is achieved, when the sealed box needs to be pumped for the second time, the rotary disc 11 is rotated reversely, the rotary disc 11 drives the threaded rod 10 to rotate, the threaded rod 10 drives the piston head 12 to move forwards under the action of the nut 9, the piston head 12 drives the inner cylinder 7 to return to the original position under the action of friction force, namely the first exhaust hole 601 corresponds to the second exhaust hole 701, and the one-way air valve 5 is arranged in the connecting pipe 4, so that the air pumped from the sealed box 1 is exhausted from the first exhaust hole 601 and the second exhaust hole 701, the second air extraction can be performed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a multipoint mode atmosphere collection system for environmental monitoring, includes seal box (1) and places collection bag (2) in seal box (1), the air inlet and the seal box (1) outside intercommunication of collection bag (2), its characterized in that: one side of the sealing box (1) is connected with an air extractor (3).
2. The multipoint atmosphere collection device for environmental inspection according to claim 1, wherein: air exhaust device (3) includes urceolus (6) and inner tube (7), the week side of inner tube (7) sets up with the inner wall sliding connection of urceolus (6), the length of inner tube (7) is shorter than the length of urceolus (6), a plurality of first exhaust holes (601) have been seted up on the lateral wall of urceolus (6), set up a plurality of second exhaust holes (701) anastomotic with first exhaust hole (601) on inner tube (7), sliding connection has piston mechanism (8) in inner tube (7), urceolus (6) and inner tube (7) are close to the connecting pipe (4) of communicating with seal box (1) are worn to be equipped with to the one end that seal box (1) was close to, a plurality of first through-holes (301) have been seted up to the one end that seal box (1) was kept away from in urceolus (6), a plurality of second through-holes (302) that correspond with first through-hole (301) have been seted up to the one end that seal box (1) was kept away from in inner tube (7), the outer barrel (6) is fixedly connected with the connecting pipe (4), the inner barrel (7) is connected with the connecting pipe (4) in a sliding mode, and the connecting pipe (4) is internally provided with a one-way air valve (5).
3. The multipoint atmosphere collection device for environmental inspection according to claim 2, wherein: piston mechanism (8) include piston head (12), one side of piston head (12) is rotated and is connected with threaded rod (10), nut (9) are worn to be equipped with by the one end of urceolus (6) and inner tube (7), urceolus (6) and nut (9) fixed connection set up, inner tube (7) and nut (9) sliding connection set up, nut (9) and nut (9) threaded connection are worn to establish by threaded rod (10), threaded rod (10) are worn to establish one end fixedly connected with carousel (11) of nut (9).
4. The multipoint atmosphere collection device for environmental inspection according to claim 2 or 3, wherein: the clearance between the first exhaust holes (601) is not less than the diameter of the first exhaust holes (601), and the length difference between the outer cylinder (6) and the inner cylinder (7) is greater than the diameter of the first exhaust holes (601) and less than the clearance between the first exhaust holes (601).
5. The multipoint atmosphere collection device for environmental inspection according to claim 3, wherein: the outer side of the nut (9) is provided with a limiting groove (901), a sliding connection part of the inner cylinder (7) and the nut (9) is provided with a limiting tooth (702) matched with the limiting groove (901), the limiting tooth (702) is fixedly connected with the inner cylinder (7), and the limiting tooth (702) is connected in the limiting groove (901) in a sliding mode.
6. The multipoint atmosphere collection device for environmental inspection according to claim 3 or 5, wherein: the anti-skidding cover is sleeved on the rotary table (11) and is made of soft rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122305379.5U CN215931431U (en) | 2021-09-23 | 2021-09-23 | Multipoint mode is atmospheric collection system for environmental detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122305379.5U CN215931431U (en) | 2021-09-23 | 2021-09-23 | Multipoint mode is atmospheric collection system for environmental detection |
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| Publication Number | Publication Date |
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| CN215931431U true CN215931431U (en) | 2022-03-01 |
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| CN202122305379.5U Active CN215931431U (en) | 2021-09-23 | 2021-09-23 | Multipoint mode is atmospheric collection system for environmental detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845454A (en) * | 2022-12-19 | 2023-03-28 | 山东泽元检测技术有限公司 | Culture water body filtering device |
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2021
- 2021-09-23 CN CN202122305379.5U patent/CN215931431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845454A (en) * | 2022-12-19 | 2023-03-28 | 山东泽元检测技术有限公司 | Culture water body filtering device |
| CN115845454B (en) * | 2022-12-19 | 2023-10-31 | 山东泽元检测技术有限公司 | Culture water body filtering device |
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