CN214584341U

CN214584341U - Gas sampling instrument for urban polluted air

Info

Publication number: CN214584341U
Application number: CN202022297669.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Dazhou Zili Gas Co ltd
Current assignee: Dazhou Zili Gas Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-11-02
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a gas sampling instrument for urban polluted air, in particular to the field of gas sampling instruments, which comprises a shell, wherein the inside of the shell is hollow, a connecting ring is inserted into a through hole to extrude a rubber sealing ring, and a spring positioned at the lower end of the rubber sealing ring can extrude the rubber sealing ring, so that the rubber sealing ring is deformed, a gas collecting cylinder and a gas storage tank are sealed, an air suction cover is opened, a rubber spiral pipe is pulled to be close to gas to be collected, then a miniature air pump is started to draw out the air in the gas collecting cylinder, the air pressure in the gas collecting cylinder is less than the external air pressure, so that the external air enters into a gas storage bag, and when the instrument needs to be cleaned, the gas storage tank is separated from a clamping groove by reversely rotating the gas storage tank, so that the gas storage tank can be detached for cleaning, and the problem that the existing gas sampling instrument collects small cracks is solved, inconvenient collection and inconvenient cleaning of the instrument after the collection is finished.

Description

Gas sampling instrument for urban polluted air

Technical Field

The utility model relates to a gaseous sampling appearance technical field especially relates to a gaseous sampling appearance of urban polluted air.

Background

An atmosphere sampling instrument, a dust sampling instrument and a TSP comprehensive sampling instrument are widely used gas monitoring devices for collecting atmospheric pollutants or polluted gases, and can be used for gas component analysis, harmful gas analysis, solid particle and dust size and content analysis and the like after sampling. The gas sampling instruments are of various types and can be divided into gas sampling instruments, particulate matter sampling instruments and sampling instruments for simultaneously collecting gas and particulate matters according to collection objects; the device can be divided into an environment sampling instrument, an indoor sampling instrument and a pollution source sampling instrument according to the using places; convenience according to use can be classified into a hand-held sampler and a portable sampler.

The small portable sampling instrument used at present is small, but cannot collect gas in some cracks, and the instrument is inconvenient to clean after collection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a city polluted air's gaseous sampling appearance has solved current gaseous sampling appearance when gathering some little cracks, is not convenient for gather to gather the inconvenient problem of instrument washing after finishing gathering.

The utility model provides a technical scheme that its technical problem adopted is: a gas sampling instrument for urban polluted air comprises a shell, wherein the interior of the shell is hollow, a gas collecting cylinder is arranged at the left end of the interior of the shell, a gas suction cylinder is arranged at the right end of the interior of the shell, a central control box is arranged in the middle of the interior of the shell, a miniature gas pump is arranged in the central control box, a storage battery is arranged in the central control box and positioned at the right end of the miniature gas pump, the gas collecting cylinder and the gas suction cylinder are both open ends and penetrate out of the upper end of the shell, four limit blocks are uniformly and fixedly connected with a circle of the inner wall at the upper end of the gas collecting cylinder, a through hole is formed in the lower end of the gas collecting cylinder, an annular groove is formed in the inner wall of the through hole in an outward opening manner, a rubber seal ring is embedded in the annular groove and is in sliding connection with the annular groove, a gas storage tank is arranged in the gas collecting cylinder, four limit grooves are uniformly formed in the circle of the outer side of the gas storage tank, and a gas collection cover is arranged at the upper end of the gas storage tank, the gas storage tank upper end is inserted into the gas collection cover and is fixedly connected with the gas collection cover, a circle of rubber pad is bonded to the lower end of the outer side of the gas collection cover, a connecting ring is fixedly connected with the lower end of the gas storage tank and is communicated with the inside of the gas storage tank, a gas storage bag is arranged inside the gas storage tank, the opening end of the gas storage bag is fixed with the connecting ring, a pipeline is fixedly connected between the gas collection cylinder and the lower end of the gas suction cylinder, the pipeline is communicated with a through hole, a rubber spiral pipe is arranged inside the gas suction cylinder, and the rubber spiral pipe penetrates out of the gas suction cylinder and is communicated with the pipeline.

Specifically, an air suction port and an air discharge port of the miniature air pump are respectively inserted into and penetrate through the air collecting cylinder and the upper end of the shell, and the miniature air pump is electrically connected with the storage battery.

Specifically, the spring is embedded in the annular groove and located at the lower end of the rubber sealing ring, and the upper end and the lower end of the spring are respectively in contact with the lower end of the rubber sealing ring and the bottom of the annular groove.

Specifically, the spacing inslot side with the gas storage tank is inside to lining up, the spacing groove extends and runs through out the gas storage tank lower extreme to the lower extreme, four draw-in grooves have evenly been seted up to the gas storage tank outside round, the draw-in groove all corresponds and is located the spacing groove with one side, just the draw-in groove all link up with adjacent the spacing groove mutually.

Specifically, stopper and spacing groove sliding connection, stopper and draw-in groove joint.

Specifically, the upper end of the air suction cylinder is provided with an air suction cover, and the air suction cover is in threaded connection with the upper end of the air suction cylinder.

Compared with the prior art, the utility model discloses the beneficial effect who realizes: the gas sampling instrument for urban polluted air inserts the gas storage tank into the gas collecting cylinder from the upper end of the gas collecting cylinder, and inserts the connecting ring into the through hole, so that the connecting ring extrudes the rubber sealing ring, and the spring positioned at the lower end of the rubber sealing ring also extrudes the rubber sealing ring, thus the rubber sealing ring deforms, the gas collecting cylinder and the gas storage tank are sealed, then the air-sucking cover is opened, the rubber spiral pipe is pulled to be close to gas to be collected, then the miniature air pump is started, so that the air in the gas collecting cylinder is pumped out, the degassing pressure in the gas collecting cylinder is smaller than the external air pressure, the external air enters the gas storage bag, and when the instrument needs to be cleaned, the gas storage tank is separated from the clamping groove by reversely rotating the gas storage tank, so that the gas storage tank can be detached for cleaning, and the problem that the existing gas sampling instrument collects small cracks is solved, inconvenient collection and inconvenient cleaning of the instrument after the collection is finished.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is an overall sectional view of the present invention;

FIG. 3 is a cut-away view of the gas collecting cylinder of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3 according to the present invention;

FIG. 5 is a sectional view of the gas tank of the present invention;

fig. 6 is a schematic view of the limiting groove of the present invention.

In the figure: the air storage device comprises a shell-1, an air collecting cylinder-2, an air suction cylinder-3, a central control box-4, a pipeline-5, an air collecting cover-6, an air suction cover-7, a miniature air pump-8, a storage battery-9, a rubber spiral tube-10, a limiting block-11, a through hole-12, a rubber sealing ring-13, a spring-14, an annular groove-15, an air storage tank-16, a limiting groove-17, a connecting ring-18 and an air storage bag-19.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a gas sampling instrument for urban polluted air comprises a shell 1, wherein the interior of the shell 1 is hollow, a gas collecting cylinder 2 is arranged at the left end of the interior of the shell 1, a gas suction cylinder 3 is arranged at the right end of the interior of the shell 1, a central control box 4 is arranged in the middle of the interior of the shell 1, a micro gas pump 8 is arranged in the central control box 4, a storage battery 9 is arranged in the central control box 4 and positioned at the right end of the micro gas pump 8, the gas collecting cylinder 2 and the gas suction cylinder 3 are both open ends and penetrate out of the upper end of the shell 1, four limit blocks 11 are uniformly and fixedly connected with a circle of the inner wall at the upper end of the gas collecting cylinder 2, a through hole 12 is formed in the lower end of the gas collecting cylinder 2, an annular groove 15 is formed in the inner wall of the through hole 12, a rubber seal ring 13 is embedded in the annular groove 15, the rubber seal ring 13 is in sliding connection with the annular groove 15, a gas storage tank 16 is arranged in the interior of the gas collecting cylinder 2, four limit grooves 17 are uniformly formed in a circle outside the storage tank 16, a gas collection cover 6 is arranged at the upper end of the gas storage tank 16, the upper end of the gas storage tank 16 is inserted into the gas collection cover 6 and fixedly connected with the gas storage tank, the lower end of the outer side of the gas collection cover 6 is bonded with a circle of rubber gasket, the lower end of the gas storage tank 16 is fixedly connected with a connecting ring 18, the connecting ring 18 is communicated with the inner part of the gas storage tank 16, a gas storage bag 19 is arranged in the gas storage tank 16, the open end of the gas storage bag 19 is fixed with the connecting ring 18, a spring 14 is embedded in the annular groove 15 and positioned at the lower end of a rubber sealing ring 13, the upper end and the lower end of the spring 14 are respectively contacted with the lower end of the rubber sealing ring 13 and the bottom of the annular groove 15, the inner side of the limiting groove 17 is communicated with the inner part of the gas storage tank 16, the limiting groove 17 extends towards the lower end and penetrates out of the lower end of the gas storage tank 16, four clamping grooves are uniformly formed in one circle of the outer side of the gas storage tank 16, and are correspondingly positioned at the same side of the limiting groove 17, the clamping grooves are communicated with the adjacent limiting grooves 17, the limiting blocks 11 are connected with the limiting grooves 17 in a sliding mode, and the limiting blocks 11 are clamped with the clamping grooves;

before gas collection, the empty gas storage tank 16 needs to be inserted into the gas collecting cylinder 2 for gas collection, firstly, the limiting groove 17 on the outer side of the gas storage tank 16 is aligned with the limiting block in the gas collecting cylinder 2, then the gas storage tank 16 is extruded downwards, so that the stopper 11 is moved to the uppermost end of the stopper groove 17, and at the same time the coupling ring 18 at the bottom of the accumulator 16 is inserted into the through-hole 12, since the rubber seal ring 13 in the through hole 12 is pressed by the spring 14, the connecting ring 18 will drive the rubber seal ring 13 to move downwards, and the spring 14 will press the rubber seal ring 13 to deform, so as to block the gap between the connecting ring 18 and the gas collecting cylinder 2, so that the gas storage tank 16 is directly communicated with the pipeline 5, at this time, the air storage tank 16 can be slightly rotated, so that the limiting block 11 moves into the clamping groove, and meanwhile, the rubber pad at the lower end of the outer side of the air collection cover 6 can seal the upper end of the air collection cylinder 2.

A pipeline 5 is fixedly connected between the lower end of the gas collecting cylinder 2 and the lower end of the gas suction cylinder 3, the pipeline 5 is communicated with a through hole 12, a rubber spiral tube 10 is arranged inside the gas suction cylinder 3, the rubber spiral tube 10 penetrates through the gas suction cylinder 3 to be communicated with the pipeline 5, a gas suction port and an exhaust port of the miniature air pump 8 are respectively inserted into the gas collecting cylinder 2 and the upper end of the shell 1 and are communicated with the inside of the gas collecting cylinder 2 and the upper end of the shell 1, the miniature air pump 8 is electrically connected with a storage battery 9, a gas suction cover 7 is arranged at the upper end of the gas suction cylinder 3, and the gas suction cover 7 is in threaded connection with the upper end of the gas suction cylinder 3;

with the installation of the air storage tank 16, the air suction cover 7 can be screwed out from the upper end of the air suction cylinder 3, so that the rubber spiral pipe 10 can be pulled out from the air suction cylinder 3, then the rubber spiral pipe 10 faces the air to be collected, at this time, by starting the micro air pump 8, the micro air pump 8 can suck out the air inside the air collection cylinder 2 and discharge the air into the outside, and because the air collection cylinder 2 is sealed, and the air storage bag 19 is connected with the rubber spiral pipe 10 through the pipeline 5, the air pressure inside the air collection cylinder 2 is reduced, so that the outside air pressure is greater than the air pressure inside the air collection cylinder 2, the outside air can reach the air storage bag 19 from the rubber spiral pipe 10 through the pipeline 5 and the connecting ring 18 in sequence, so as to achieve the purpose that the air pressure inside the air collection cylinder 2 is the same as the outside air pressure, and then the air to be collected is successfully pumped into the air storage bag 19.

And when cleaning the instrument, only need through grabbing album gas lid 6 with deposit gas jar 16 antiport for stopper 11 removes to spacing groove 17 top from the draw-in groove, and then will deposit gas jar 16 extract alright with depositing gas jar 16 and rinse, simultaneously can directly wash pipeline 5 and rubber spiral pipe 10 with the water can.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. The utility model provides a gaseous sampling appearance of city polluted air, includes shell (1), its characterized in that: the air collecting device is characterized in that the shell (1) is hollow, a gas collecting cylinder (2) is arranged at the left end inside the shell (1), a gas suction cylinder (3) is arranged at the right end inside the shell (1), a central control box (4) is arranged in the middle inside the shell (1), a micro air pump (8) is arranged inside the central control box (4), a storage battery (9) is arranged inside the central control box (4) and positioned at the right end of the micro air pump (8), the gas collecting cylinder (2) and the gas suction cylinder (3) are both open ends and penetrate through the upper end of the shell (1), four limit blocks (11) are uniformly and fixedly connected with one circle of the inner wall at the upper end of the gas collecting cylinder (2), a through hole (12) is formed in the lower end of the gas collecting cylinder (2), an annular groove (15) is formed in the inner wall of the through hole (12) outwards, a rubber sealing ring (13) is embedded into the annular groove (15), and the rubber sealing ring (13) is connected with the annular groove (15) in a sliding manner, the gas collecting tank is characterized in that a gas storing tank (16) is arranged in the gas collecting cylinder (2), four limiting grooves (17) are uniformly formed in one circle of the outer side of the gas storing tank (16), a gas collecting cover (6) is arranged at the upper end of the gas storing tank (16), the upper end of the gas storing tank (16) is inserted into the gas collecting cover (6) and is fixedly connected with the gas collecting cover, a rubber gasket is bonded at the lower end of the outer side of the gas collecting cover (6), a connecting ring (18) is fixedly connected with the lower end of the gas storing tank (16), the connecting ring (18) is communicated with the inner part of the gas storing tank (16), a gas storing bag (19) is arranged in the gas storing tank (16), the opening end of the gas storing bag (19) is fixed with the connecting ring (18), a pipeline (5) is fixedly connected between the lower end of the gas collecting cylinder (2) and the lower end of the gas suction cylinder (3), the pipeline (5) is communicated with a through hole (12), and a rubber spiral pipe (10) is arranged in the gas suction cylinder (3), the rubber spiral pipe (10) penetrates through the air outlet and suction cylinder (3) and is communicated with the pipeline (5).

2. The gas sampling instrument for urban polluted air according to claim 1, wherein: an air suction port and an air exhaust port of the miniature air pump (8) are respectively inserted into and penetrate through the inside of the air collecting cylinder (2) and the upper end of the shell (1), and the miniature air pump (8) is electrically connected with the storage battery (9).

3. The gas sampling instrument for urban polluted air according to claim 1, wherein: the inside rubber seal (13) lower extreme that just is located of annular (15) is embedded into and has spring (14), both ends contact with rubber seal (13) lower extreme and annular (15) tank bottom respectively about spring (14).

4. The gas sampling instrument for urban polluted air according to claim 1, wherein: spacing groove (17) inboard with deposit gas pitcher (16) inside to lining up, spacing groove (17) extend and run through out and deposit gas pitcher (16) lower extreme to the lower extreme, deposit gas pitcher (16) outside round and evenly seted up four draw-in grooves, the draw-in groove all corresponds and is located spacing groove (17) same one side, just the draw-in groove all link up with adjacent spacing groove (17) mutually.

5. The gas sampling instrument for urban polluted air according to claim 4, wherein: stopper (11) and spacing groove (17) sliding connection, stopper (11) and draw-in groove joint.

6. The gas sampling instrument for urban polluted air according to claim 1, wherein: the upper end of the air suction tube (3) is provided with an air suction cover (7), and the air suction cover (7) is in threaded connection with the upper end of the air suction tube (3).