CN208984410U - A kind of drying room air acquisition device for test - Google Patents

Abstract

The utility model discloses a kind of drying room air acquisition devices for test, including collection tube and pedestal, bottom inside collection tube is fixedly connected with second piston, the top of second piston is equipped with first piston, pull rod is installed at the top center of first piston, the interspersed connection of the through-hole opened up inside one end of pull rod and top cover, top cover is fixedly installed in the opening at the top of collection tube, the bottom of collection tube is fixedly connected with concave positioning table, the limiting slot that the bottom of concave positioning table and base top open up is clamped, the side of acquisition bottom of the tube is connected to ventilation duct, one end of ventilation duct is equipped with gas gathering mask, the junction of gas gathering mask and ventilation duct offers several ventilation holes.A kind of drying room air acquisition device for test of the utility model, structure is simple, facilitates operation, convenient for carrying, air collected in drying room can be kept to temperature when acquiring, test accuracy rate is high.

Description

A kind of drying room air acquisition device for test

Technical field

The utility model relates to a kind of air acquisition device, in particular to a kind of drying room air acquisition for test fills It sets.

Background technique

Related personnel often can be acquired sampling to the air under designated environment, and carrying is gone back to analyze, often be mixed in air Miscellaneous many dust particles, current impinger are easy together to collect the dust particles in air, make when collecting air The air quality data inaccuracy of sampling, influences test result, causes air sampling result inaccurate, the dust particles after collection Deposit buildup is finally easy in the bottom of collection vessel, bad cleaning.

Common air trapping method is acquired there are also traditional by balloon or gas cylinder, and such acquisition has operation not Conveniently and it is not easy to the shortcomings that saving well, not only making troubles to collecting work while also analyzing post-collection produces Raw certain influence.

Utility model content

The purpose of this utility model is to provide a kind of drying room air acquisition devices for test, to solve above-mentioned back Air quality after Portable belt is not saved and sampled after the air acquisition proposed in scape technology is impure, influences asking for sampled result Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of drying room air for test is adopted Acquisition means, including collection tube and pedestal, the bottom inside the collection tube are fixedly connected with second piston, the second piston Top is equipped with first piston, is equipped with pull rod, one end of the pull rod and top cover at the top center of the first piston The interspersed connection of the through-hole that inside opens up, the top cover are fixedly installed in the opening at the top of collection tube, the bottom of the collection tube It is fixedly connected with concave positioning table, the limiting slot that the bottom of the concave positioning table and base top open up is clamped, the acquisition The side of bottom of the tube is connected to ventilation duct, and one end of the ventilation duct is equipped with gas gathering mask, the company of the gas gathering mask and ventilation duct The place of connecing offers several ventilation holes, and the side of the gas gathering mask is equipped with the first Non-return air valve being installed on inside ventilation duct, institute The other side for stating acquisition bottom of the tube is connected to probe tube, and the inside of the probe tube is equipped with the second Non-return air valve.

As a kind of optimal technical scheme of the utility model, the inside of the ventilation duct is filled with sampling cotton.

As a kind of optimal technical scheme of the utility model, the junction of the ventilation duct and collection tube is embedded with sieve Disk, the inside of the screen tray offer several sieve pores, and the inside of several sieve pores is embedded with strainer, described in several The filter opening diameter of strainer is respectively less than the filter opening diameter for sampling cotton.

As a kind of optimal technical scheme of the utility model, the outer cover of the collection tube is equipped with muff.

As a kind of optimal technical scheme of the utility model, it is arranged with sleeve in the middle part of the outer wall of the muff, it is described The surface of sleeve is equipped with several protrusions.

Compared with prior art, the utility model has the beneficial effects that a kind of drying room for test of the utility model Air acquisition device traps the dust in air by sampling cotton, dust is made tightly to be adsorbed on sampling cotton surface and inside, sieve The strainer being embedded in hole filters air again, can prevent the dust in air from entering inside collection tube, influences air sampling knot Fruit；It can be reserved for temperature when air trapping by muff, improve the accuracy of air test；By the protrusion of sleeve surface, Increase the frictional force that sampling personnel hold sampler, convenient for collecting air, collection tube is slid when preventing from collecting.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the schematic diagram of internal structure of the utility model；

Fig. 3 is the partial structural diagram of the utility model；

Fig. 4 is the screen tray structural schematic diagram of the utility model.

In figure: 1, collection tube；2, pedestal；3, concave positioning table；4, sleeve；5, muff；6, top cover；7, pull rod；8, One piston；9, second piston；10, screen tray；11, cotton is sampled；12, gas gathering mask；13, the first Non-return air valve；14, ventilation duct；15, it takes Sample pipe；16, the second Non-return air valve；17, sieve pore；18, strainer.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of drying room air acquisition device for test, including acquisition Pipe 1 and pedestal 2, the bottom inside collection tube 1 are fixedly connected with second piston 9, and the top of second piston 9 is equipped with first piston 8, Pull rod 7 is installed, the through-hole opened up inside one end of pull rod 7 and top cover 6 is interspersed to be connected at the top center of first piston 8 It connects, top cover 6 is fixedly installed in the opening at 1 top of collection tube, and the bottom of collection tube 1 is fixedly connected with concave positioning table 3, concave The limiting slot opened up at the top of the bottom of positioning table 3 and pedestal 2 is clamped, and the side of 1 bottom of collection tube is connected to ventilation duct 14, is divulged information One end of pipe 14 is equipped with gas gathering mask 12, and gas gathering mask 12 and the junction of ventilation duct 14 offer several ventilation holes, gas gathering mask 12 side is equipped with the first Non-return air valve 13 being installed on inside ventilation duct 14, the other side of 1 bottom of collection tube and probe tube 15 Connection, the inside of probe tube 15 is equipped with the second Non-return air valve 16.

Preferably, the dust in air is adsorbed filled with sampling cotton 11 in the inside of ventilation duct 14.

Preferably, the junction of ventilation duct 14 and collection tube 1 is embedded with screen tray 10, and the inside of screen tray 10 offers several Sieve pore 17, the inside of several sieve pores 17 are embedded with strainer 18, and the filter opening diameter of several strainers 18, which is respectively less than, samples cotton 11 Filter opening diameter, to air carry out secondary filter, improve the purity of air.

Preferably, the outer cover of collection tube 1 is equipped with muff 5, keeps temperature when air acquisition, and it is quasi- to improve air test Exactness.

Preferably, sleeve 4 is arranged in the middle part of the outer wall of muff 5, the surface of sleeve 4 is equipped with several protrusions, increases work Make the frictional force that personnel hold collection tube 1.

When specifically used, collection tube 1 is carried to by a kind of drying room air acquisition device for test of the utility model The second Non-return air valve 16 is closed in the region for needing to acquire, and opens the first Non-return air valve 13, holds pull rod 7, pull rod 7 is pulled up It rises, pull rod 7 drives first piston 8 to move upwards, and since the air pressure in collection tube 1 is low, extraneous air will pass through ventilation duct 14 Into in collection tube 1, air is entered by gas gathering mask 12, and the dust carried secretly in air is fallen in the sampling absorption of cotton 11, and sieve pore 17 is embedded If strainer 18 will be for re-filtering to air, guarantee the purity of air, prevent the presence of other compositions from influencing air Sampling and testing closes the first Non-return air valve 13, will collect the collection tube of full air when first piston 8 is drawn by pull rod 7 and arrives top 1 is put into matched Portable box, and being carried to needs place to be tested, when carrying out sampling test to air, takes out collection tube 1, one end of probe tube 15 and detection vessel are connected, the second Non-return air valve 16 is opened, the air of sampling is detected.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result, Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of drying room air acquisition device for test, including collection tube (1) and pedestal (2), which is characterized in that described The internal bottom of collection tube (1) is fixedly connected with second piston (9), and the top of the second piston (9) is equipped with first piston (8), it is equipped with pull rod (7) at the top center of the first piston (8), in one end and top cover (6) of the pull rod (7) The interspersed connection of the through-hole that portion opens up, the top cover (6) are fixedly installed in the opening at the top of collection tube (1), the collection tube (1) Bottom be fixedly connected with concave positioning table (3), the limit opened up at the top of the bottom of the concave positioning table (3) and pedestal (2) Slot clamping, the side of collection tube (1) bottom are connected to ventilation duct (14), and one end of the ventilation duct (14) is equipped with gas collection It covers (12), the junction of the gas gathering mask (12) and ventilation duct (14) offers several ventilation holes, the gas gathering mask (12) Side, which is equipped with, is installed on internal the first Non-return air valve (13) of ventilation duct (14), the other side of collection tube (1) bottom with take Sample pipe (15) connection, the inside of the probe tube (15) is equipped with the second Non-return air valve (16).

2. a kind of drying room air acquisition device for test according to claim 1, it is characterised in that: the ventilation The inside of (14) is managed filled with sampling cotton (11).

3. a kind of drying room air acquisition device for test according to claim 2, it is characterised in that: the ventilation The junction of pipe (14) and collection tube (1) is embedded with screen tray (10), and the inside of the screen tray (10) offers several sieve pores (17), the inside of several sieve pores (17) is embedded with strainer (18), and the filter opening diameter of several strainers (18) is equal Less than the filter opening diameter of sampling cotton (11).

4. a kind of drying room air acquisition device for test according to claim 1, it is characterised in that: the acquisition The outer cover for managing (1) is equipped with muff (5).

5. a kind of drying room air acquisition device for test according to claim 4, it is characterised in that: the heat preservation It covers and is arranged with sleeve (4) in the middle part of the outer wall of (5), the surface of the sleeve (4) is equipped with several protrusions.