CN210665202U - Collection device for air quality detection - Google Patents

Abstract

The utility model discloses a collecting device for air quality detection, which belongs to the technical field of air collection and comprises a collecting barrel, wherein the upper end of the collecting barrel is provided with a jack, an inserting rod is inserted in the jack, the bottom end of the inserting rod is fixedly connected with a pair of arc-shaped connecting plates, the arc-shaped connecting plates are positioned in the collecting barrel, the outer end of each arc-shaped connecting plate is sleeved with a sleeve plate, the bottom end of the sleeve plate is fixedly connected with a moving shaft, the bottom end of each arc-shaped connecting plate is fixedly connected with a piston ring, the piston ring is positioned between the moving shaft and the piston ring and is abutted against the moving shaft and the collecting barrel, the bottom end of the moving shaft is fixedly connected with a sealing plate, the sealing plate is positioned at the lower side of the collecting barrel, the bottom end of the sealing plate is provided with a plurality of air vents which are uniformly distributed, the, thereby reducing the error of later experiment.

Description

Collection device for air quality detection

Technical Field

The utility model relates to an air acquisition technical field, more specifically say, relate to a collection device for air quality testing.

Background

Air detection in the broad sense refers to the detection of the constituent components of air. The narrow-sense air detection is mainly from the application point of view, and the important research is indoor air detection, which means that substances harmful to human bodies, such as indoor decoration materials, furniture and the like, are released into home and office environments to cause decoration pollution, so as to detect the air quality.

Because people develop and utilize natural resources in a plunder-type manner, the environmental pollution is aggravated, particularly in the aspect of air pollution, the air quality condition is gradually reduced, and in some areas, even great danger hidden dangers are brought to daily life of people.

Among the prior art scientific research staff often collects the gas in different places through disposable bag, carry out the detection of experiment, perhaps collect gas through the inflater, but the collection mode of disposable bag leads to collecting gaseous in-process easily and external air flows each other, make gaseous purity not enough, and it is relatively poor to collect the bag leakproofness, it is great to cause later stage experimental error, and gather gaseous mode through the inflater, based on the theory of operation of inflater, the air is when being collected through the gap between bowl form piston and the section of thick bamboo wall, harmful particle in the air exists the phenomenon that can't enter into a section of thick bamboo on attached to the piston, lead to PM2.5 individual item to detect the index precision and reduce, especially more serious in heavily polluted area.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a collection device is used in air quality detection, it can realize the atmospheric conditions in at utmost reduction detection area, improves the gaseous purity of collection and the accuracy of sample to reduce the error of later stage experiment.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A collecting device for air quality detection comprises a collecting barrel, wherein the upper end of the collecting barrel is provided with a jack, an inserting rod is inserted into the jack, the bottom end of the inserting rod is fixedly connected with a pair of arc-shaped connecting plates, the arc-shaped connecting plates are positioned in the collecting barrel, the outer ends of the arc-shaped connecting plates are sleeved with sleeve plates, the bottom ends of the sleeve plates are fixedly connected with a moving shaft, the bottom ends of the arc-shaped connecting plates are fixedly connected with piston rings, the piston rings are positioned between the moving shaft and the piston rings and are abutted against the moving shaft and the collecting barrel, the bottom ends of the moving shaft are fixedly connected with sealing plates, the sealing plates are positioned on the lower side of the collecting barrel, collecting airbags are installed at the bottom ends of the sealing plates, the upper ends of the sealing plates are provided with a plurality of uniformly distributed air holes, lower, the purity of the collected gas and the accuracy of the sample are improved, and therefore errors of later-stage experiments are reduced.

Further, the inner wall of jack and the surface of inserted bar all are equipped with polishing layer, through setting up polishing layer, can be so that jack and inserted bar be difficult for the card stopper when sliding each other to can reduce the influence that produces the collection of air.

Further, the surface cover of piston ring and shrouding is equipped with the seal cover, the seal cover is made by the rubber material, sets up the seal cover through setting up on the surface of piston ring and shrouding, can reduce the possibility of the gas leakage of collection to can make the difficult decline of gaseous purity.

Further, the equal fixedly connected with magnet piece in inside of collecting vessel and shrouding, two the magnet piece matches each other, and inside collecting vessel and shrouding, the magnet piece through setting up mutual matching can be so that the shrouding is inseparabler with collecting vessel confined for gaseous difficult leakage.

Furthermore, the outer end fixedly connected with of inserted bar keeps off the ring, it is inboard that the ring lies in the collecting vessel to keep off the ring through setting up, can be so that the inserted bar is difficult by overstretch to make difficult fracture between removal axle and the shrouding.

Further, a pair of pressing plates are fixedly connected to the outer ends of the sealing plates, anti-skidding lines are carved on the surfaces of the pressing plates, the pressing plates are arranged, so that an operator can conveniently press hands onto the pressing plates when gas is guided into the collecting air bags, and the sealing plates and the collecting barrels are not prone to separation.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the scheme can reduce the air condition of the detection area to the maximum extent, improve the purity of the collected gas and the accuracy of the sample, and reduce the error of later-stage experiments.

(2) The inner wall of jack and the surface of inserted bar all are equipped with polishing layer, through setting up polishing layer, can be so that jack and inserted bar be difficult for the jam when sliding each other to can reduce the influence that produces the collection of air.

(3) The surface cover of piston ring and shrouding is equipped with the seal cover, and the seal cover is made by the rubber material, sets up the seal cover through setting up the surface at piston ring and shrouding, can reduce the gas leakage's of collecting possibility to can make the difficult decline of purity of gas.

(4) The equal fixedly connected with magnet piece in inside of collecting vessel and shrouding, two magnet pieces match each other, and the magnet piece through setting up mutual matching is inside collecting vessel and shrouding, can be so that the shrouding is inseparabler with collecting vessel confined for gaseous difficult leakage.

(5) The outer end fixedly connected with of inserted bar keeps off the ring, keeps off the ring and is located the collecting vessel inboard, keeps off the ring through setting up, can be so that the inserted bar is difficult by the overstretching to make and remove difficult fracture between axle and the shrouding.

(6) The shrouding outer end fixedly connected with presses the board, presses the board surface to be carved with anti-skidding line, presses the board through setting up, can make things convenient for the operator with gas introduction to when collecting the gasbag, press the board with the hand on to make difficult separation between shrouding and the collecting vessel.

Drawings

Fig. 1 is an overall perspective view of the present invention;

FIG. 2 is a perspective view of the insertion rod portion of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure at B in FIG. 2;

fig. 5 is an overall cross-sectional view of the present invention;

FIG. 6 is a schematic view of the structure at C in FIG. 5;

FIG. 7 is a sectional view of the present invention during gas absorption;

fig. 8 is a cross-sectional view of the utility model after collection.

The reference numbers in the figures illustrate:

the device comprises a collecting cylinder 1, a jack 2, an inserting rod 3, an arc connecting plate 4, a sleeve plate 5, a moving shaft 6, a piston ring 7, a sealing plate 8, a collecting air bag 9, an air vent 10, a baffle ring 11 and a pressing plate 12.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-8, a collecting device for air quality detection comprises a collecting cylinder 1, a jack 2 is cut at the upper end of the collecting cylinder 1, an insertion rod 3 is inserted into the jack 2, a pair of arc-shaped connecting plates 4 are fixedly connected to the bottom ends of the insertion rod 3, the arc-shaped connecting plates 4 are positioned in the collecting cylinder 1, sleeve plates 5 are sleeved outside the arc-shaped connecting plates 4, a moving shaft 6 is fixedly connected to the bottom ends of the sleeve plates 5, piston rings 7 are fixedly connected to the bottom ends of the arc-shaped connecting plates 4, the piston rings 7 are positioned between the moving shaft 6 and the piston rings 7 and abut against the moving shaft 6 and the collecting cylinder 1, a closing plate 8 is fixedly connected to the bottom ends of the moving shaft 6, the closing plate 8 is positioned at the lower side of the collecting cylinder 1, a collecting air bag 9 is installed at the bottom end of the closing plate 8, a plurality of uniformly distributed vent holes 10 are cut at the upper, the purity of the collected gas and the accuracy of the sample are improved, and therefore errors of later-stage experiments are reduced.

Please refer to fig. 6-8, the inner wall of the insertion hole 2 and the surface of the insertion rod 3 are both provided with polishing layers, and the insertion hole 2 and the insertion rod 3 are not easy to be blocked when sliding each other by the polishing layers, so that the influence on the collection of air can be reduced, a pair of pressing plates 12 are fixedly connected to the outer ends of the sealing plates 8, anti-skid lines are carved on the surfaces of the pressing plates 12, and the pressing plates 12 are arranged, so that an operator can conveniently press hands onto the pressing plates 12 when guiding gas into the collecting air bags 9, and the sealing plates 8 and the collecting barrels 1 are not easy to separate.

Please refer to fig. 1-5, the surface cover of piston ring 7 and shrouding 8 is equipped with the seal cover, the seal cover is made by rubber material, set up the seal cover through setting up the surface at piston ring 7 and shrouding 8, can reduce the gas leakage's of collection possibility, thereby can make gaseous purity be difficult for descending, the equal fixedly connected with magnet piece in inside of collecting vessel 1 and shrouding 8, two magnet pieces match each other, magnet piece through setting up mutual matching is inside collecting vessel 1 and shrouding 8, can make shrouding 8 inseparabler with collecting vessel 1 confined, make gaseous difficult leakage, the outer end fixedly connected with baffle ring 11 of inserted bar 3, baffle ring 11 is located collecting vessel 1 inboard, through setting up baffle ring 11, can make inserted bar 3 difficult quilt overstretch, thereby make difficult fracture between removal axle 6 and the shrouding 8.

When an operator uses the utility model, in the first step, the operator holds the collecting cylinder 1 and then pulls the inserting rod 3 upwards to move the piston ring 7 and the sleeve plate 5 upwards simultaneously, so as to draw air into the collecting cylinder 1, in the process, the tiny particles are not easy to be blocked until the closing plate 8 is abutted against the collecting cylinder 1, please refer to fig. 5 and 7, in the second step, after the whole equipment is overturned, the inserting rod 3 is placed on a horizontal plane, the operator presses the pressing plate 12 by fingers and presses the whole equipment downwards, so that the inserting rod 3 is inserted into the collecting cylinder 1, so that the inserting rod 7 moves along the collecting cylinder 1 and the moving shaft 6, the air is extruded, the air enters the collecting air bag 9 through the vent hole 10 and then the collecting air bag 9 is tightened and taken down, compared with the prior art, the utility model can realize the maximum reduction of the air condition of the detection area, the purity of the collected gas and the accuracy of the sample are improved, and therefore errors of later-stage experiments are reduced.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (6)

1. A collection device for air quality detection, includes a collection tube (1), its characterized in that: the collecting cylinder is characterized in that a jack (2) is formed in the upper end of the collecting cylinder (1), an inserting rod (3) is inserted into the jack (2), a pair of arc-shaped connecting plates (4) are fixedly connected to the bottom of the inserting rod (3), the arc-shaped connecting plates (4) are located in the collecting cylinder (1), sleeve plates (5) are sleeved on the outer ends of the arc-shaped connecting plates (4), a moving shaft (6) is fixedly connected to the bottom of the sleeve plates (5), piston rings (7) are fixedly connected to the bottom of the arc-shaped connecting plates (4), the piston rings (7) are located between the moving shaft (6) and the piston rings (7) and abut against the moving shaft (6) and the collecting cylinder (1), a sealing plate (8) is fixedly connected to the bottom of the moving shaft (6), the sealing plate (8) is located on the lower side of the collecting cylinder (1), a collecting air bag (9) is installed at the bottom of the sealing plate (, the lower side notches of the plurality of vent holes (10) are all positioned at the inner side of the collecting air bag (9).

2. A collecting device for air quality detection according to claim 1, wherein: polishing layers are arranged on the inner wall of the jack (2) and the surface of the inserted rod (3).

3. A collecting device for air quality detection according to claim 1, wherein: the surface cover of piston ring (7) and shrouding (8) is equipped with the seal cover, the seal cover is made by the rubber material.

4. A collecting device for air quality detection according to claim 1, wherein: the equal fixedly connected with magnet piece in the inside of collection section of thick bamboo (1) and shrouding (8), two the magnet piece matches each other.

5. A collecting device for air quality detection according to claim 1, wherein: the outer end fixedly connected with of inserted bar (3) keeps off ring (11), keep off ring (11) and be located collecting cylinder (1) inboard.

6. A collecting device for air quality detection according to claim 1, wherein: the outer end of the sealing plate (8) is fixedly connected with a pair of pressing plates (12), and anti-skid grains are carved on the surfaces of the pressing plates (12).

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