CN216847082U - Nitrobenzene compound air sampling pipe - Google Patents

Abstract

The utility model belongs to the technical field of sampling pipes, and particularly relates to a nitrobenzene compound air sampling pipe which comprises a filter material shell, a sealing component, a first air pipe and a second air pipe; the bottom end of the first air pipe is communicated with the upper end of the second air pipe, and the bottom end of the filter material shell is communicated with the top end of the first air pipe; the sealing component is arranged at the other ends of the filter material shell and the second air pipe; through setting up the filter material shell, trachea and No. two tracheas, the realization is established ties the filter material cake with the solid adsorption material of the different packing volume in front and back both ends, thereby when gathering different states coexistence nitrobenzene class compound in the air, can adsorb vapor state and aerosol form nitrobenzene class compound simultaneously, make this sampling pipe use when different workplaces, all possess stronger adaptability, thereby the time of the nitrobenzene class compound of shortening collection that can be by a wide margin, improve work efficiency.

Description

Nitrobenzene compound air sampling pipe

Technical Field

The utility model belongs to the technical field of sampling pipes, and particularly relates to a nitrobenzene compound air sampling pipe.

Background

The nitrobenzene compound gas is a toxic gas, and a large amount of inhaled air containing the nitrobenzene compound can cause symptoms such as dizziness, nausea and the like.

In a workplace, common nitrobenzene compounds have a vaporous state, an aerosol state and a coexisting state of the vaporous state and the aerosol state, and the common nitrobenzene compounds coexisting in different states in the air of the workplace are collected by using an air sampling pipe or a superfine glass fiber filter membrane.

At present, a common air sampling pipe in the prior art can only simply measure a vaporous common nitrobenzene compounds, an ultrafine glass fiber filter membrane is generally applied to collecting gas sol common nitrobenzene compounds, and in the actual operation process, due to the fact that air of a workplace contains nitrobenzene compounds in different existing states, classified collection of the nitrobenzene compounds can greatly affect the collection progress, so that the sampling and detection cost is high, and the working efficiency is low; therefore, the nitrobenzene compound air sampling pipe is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the problem that the nitrobenzene compounds in different existing states are contained in the air of a working place in the process of actual operation, so that the nitrobenzene compounds are classified and collected, the collection progress is greatly influenced, the sampling and detection cost is high, and the working efficiency is low is solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a nitrobenzene compound air sampling tube, which comprises a filter material shell, a sealing component, a first air tube and a second air tube;

the bottom end of the first air pipe is communicated with the upper end of the second air pipe, and the bottom end of the filter material shell is communicated with the top end of the first air pipe; the sealing component is arranged at the other ends of the filter material shell and the second air pipe;

the filter material shell consists of a filter material upper cover, an air inlet part, a filter material lower cover and a connecting part; the air inlet part is arranged at the top of the filter material upper cover; the connecting part is arranged at the bottom of the filter material lower cover; the outer side of the bottom end of the filter material upper cover is provided with an external thread; the inner side of the top end of the filter material lower cover is provided with an internal thread; a supporting plate is clamped in the middle of the filter material lower cover, and a limiting plate is arranged at the upper end of the supporting plate; a filter cake is arranged between the limiting plate and the supporting plate; set up the through-hole of multiunit circumference symmetrical arrangement on the limiting plate, be favorable to the even collection of air, after the installation of filter material cake, artificial twists the filter material lower cover with filter material upper cover screw thread, accomplishes the installation of filter material shell.

Preferably, the connecting part is provided with two groups of clamping grooves; the two groups of clamping grooves are symmetrically formed in the side wall of the connecting part; when connecting a trachea on connecting portion, utilize the draw-in groove to carry on spacingly to a trachea, realize the quick installation to a trachea and connecting portion.

Preferably, the top end of the first air pipe is provided with a first connecting pipe, and the side wall of the top of the first connecting pipe is fixedly connected with symmetrically arranged slide fasteners.

Preferably, a second rubber pad is arranged at the top end of the first connecting pipe, and a rubber ring is arranged at the bottom end of the first connecting pipe; the bottom end of the first air pipe is provided with a second connecting pipe; wherein tracheal inside has set gradually glass cotton, anterior segment solid adsorption material and glass cotton, and No. two tracheal inside has set gradually glass cotton, back end solid adsorption material and glass cotton.

Preferably, the second connecting pipe is in threaded connection with the top of the second air pipe, and a third rubber pad is arranged between the second connecting pipe and the second air pipe; an air outlet part is arranged at the bottom of the second air pipe; therefore, the first air pipe is in threaded connection with the second air pipe, the third rubber pad is arranged between the second connecting pipe and the second air pipe, and the first air pipe is in threaded connection with the second air pipe, so that the sealing performance between the first air pipe and the second air pipe is improved.

Preferably, the sliding buckle is connected in the clamping groove in a sliding mode, and the second rubber pad is located in the connecting portion.

Preferably, the rubber ring is arranged between the connecting part and the first connecting pipe.

Preferably, the sealing assembly consists of a first sealing cap and a second sealing cap; the first sealing cap is in threaded connection with the top end of the air inlet part, and the second sealing cap is in threaded connection with the bottom end of the air outlet part; when the collecting pipe is not used, the air inlet part is sealed by the first sealing cap, and the air outlet part is sealed by the second sealing cap.

The utility model has the beneficial effects that:

the utility model provides a nitrobenzene compound air sampling pipe, which is characterized in that a filter material shell, a first air pipe and a second air pipe are arranged, so that a filter material cake is connected in series with solid adsorbing materials with different filling amounts at the front end and the rear end, and the nitrobenzene compounds in a vaporized state and a gas-sol state can be adsorbed simultaneously when the nitrobenzene compounds coexisting in different states in the air are collected, so that the sampling pipe has strong adaptability when being applied to different workplaces, the time for collecting the nitrobenzene compounds can be greatly shortened, and the working efficiency is improved.

The utility model provides a nitrobenzene compound air sampling pipe, which is provided with a buckle groove and a slide buckle, when a first air pipe and a second air pipe are communicated at the bottom of a filter material shell, the first connecting pipe is clamped at the bottom of a connecting part manually and rotates immediately, the first air pipe and the second air pipe can be quickly clamped at the bottom of the filter material shell by matching with a second rubber pad and a rubber ring, and the second rubber pad and the rubber ring can seal the connecting part of the first air pipe and the filter material shell, so that the efficiency of collecting nitrobenzene compounds is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a first perspective view of the first embodiment;

FIG. 2 is a second perspective view of the first embodiment;

FIG. 3 is a cross-sectional view of the first embodiment;

FIG. 4 is an enlarged view of the structure of part A of FIG. 2;

FIG. 5 is an enlarged view of the structure of part B of FIG. 3;

FIG. 6 is a perspective view of a stopper plate according to a second embodiment;

illustration of the drawings:

1. Covering the filter material; 11. an air intake portion; 12. an external thread; 21. a first sealing cap; 22. a second sealing cap; 3. a filter material lower cover; 31. a connecting portion; 311. a card slot; 32. an internal thread; 33. a support plate; 331. a first rubber pad; 34. a limiting plate; 35. filtering the material cake; 4. a first air pipe; 41. a first connecting pipe; 411. a second rubber pad; 412. sliding and buckling; 413. a rubber ring; 42. a second connecting pipe; 421. a third rubber pad; 5. a second air pipe; 51. an air outlet part.

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.

Specific examples are given below.

The first embodiment is as follows:

referring to fig. 1-5, the present invention provides a nitrobenzene compound air sampling tube, which comprises a filter material housing, a sealing assembly, a first air tube 4 and a second air tube 5;

The bottom end of the first air pipe 4 is communicated with the upper end of the second air pipe 5, and the bottom end of the filter material shell is communicated with the top end of the first air pipe 4; the sealing component is arranged at the other ends of the filter material shell and the second air pipe 5;

the filter material shell consists of a filter material upper cover 1, an air inlet part 11, a filter material lower cover 3 and a connecting part 31; the air inlet part 11 is arranged at the top of the filter material upper cover 1; the connecting part 31 is arranged at the bottom of the filter material lower cover 3; the outer side of the bottom end of the filter material upper cover 1 is provided with an external thread 12; the inner side of the top end of the filter material lower cover 3 is provided with an internal thread 32; a support plate 33 is clamped in the middle of the filter material lower cover 3, and a limit plate 34 is arranged at the upper end of the support plate 33; and a filter cake 35 is arranged between the limiting plate 34 and the supporting plate 33.

The during operation, set up filter material cake 35 in backup pad 33, connect limiting plate 34 in backup pad 33 and filter material cake 35's upper end immediately, limiting plate 34 produces limiting displacement to filter material cake 35 this moment, make filter material cake 35 be located backup pad 33's center all the time, and set up the through-hole of multiunit circumference symmetrical arrangement on limiting plate 34, be favorable to the even collection of air, after filter material cake 35 installs, artificially twist filter material lower cover 3 with filter material upper cover 1 screw thread, accomplish the installation of filter material shell.

Further, the connecting portion 31 is provided with two sets of card slots 311, and the card slots 311 are provided; two sets of the locking slots 311 are symmetrically formed on the side wall of the connecting portion 31.

During operation, the symmetrical clamping grooves 311 arranged at the bottom of the connecting portion 31 are of an L-shaped structure, when the first air pipe 4 is connected to the connecting portion 31, the first air pipe 4 is limited by the clamping grooves 311, and the first air pipe 4 and the connecting portion 31 can be rapidly installed.

Further, a first connecting pipe 41 is arranged at the top end of the first air pipe 4, and symmetrically arranged slide fasteners 412 are fixedly connected to the side wall of the top of the first connecting pipe 41.

Further, a second rubber pad 411 is arranged at the top end of the first connecting pipe 41, and a rubber ring 413 is arranged at the bottom end of the first connecting pipe 41; the bottom end of the first air pipe 4 is provided with a second connecting pipe 42.

During operation, No. one trachea 4 is fixed on connecting portion 31 by connecting pipe 41, when installing promptly, the artificial sliding button 412 that drives on connecting pipe 41 slides in the catching groove, and when connecting pipe 41 and connecting portion 31 joint, the rubber pad at a connecting pipe 41 top is located connecting portion 31, the cooperation sets up the rubber circle 413 in a connecting pipe 41 bottom, when connecting pipe 41 and connecting portion 31 joint are inseparable, realize the sealed to connecting pipe 41 and connecting portion 31, avoid gaseous through the space of connecting pipe 41 and connecting portion 31 reveal lead to the collection inefficiency of nitrobenzene class compound, wherein the inside of No. one trachea 4 has set gradually glass cotton, anterior segment solid adsorption material and glass cotton, and the inside of No. two trachea 5 has set gradually glass cotton, back end solid adsorption material and glass cotton.

Further, the second connecting pipe 42 is in threaded connection with the top of the second air pipe 5, and a third rubber pad 421 is arranged between the second connecting pipe 42 and the second air pipe 5; the bottom of the second air pipe 5 is provided with an air outlet part 51.

During operation, the top of No. two trachea 5 is provided with the screw thread, and the outside of No. two connecting pipes 42 that correspond is provided with the screw thread, consequently passes through threaded connection between No. 4 trachea and No. two trachea 5, and sets up No. three rubber pad 421 between No. two connecting pipes 42 and No. two trachea 5, with No. 4 trachea 5 threaded connection back, is favorable to improving the leakproofness between No. 4 trachea and No. two trachea 5.

Further, the sliding buckle 412 is slidably connected in the clamping groove 311, and the second rubber pad 411 is located in the connecting portion 31.

Further, the rubber ring 413 is disposed between the connection portion 31 and the first connection pipe 41.

Further, the sealing assembly consists of a first sealing cap 21 and a second sealing cap 22; the first sealing cap 21 is in threaded connection with the top end of the air inlet portion 11, and the second sealing cap 22 is in threaded connection with the bottom end of the air outlet portion 51.

In operation, the sealing assembly seals the air inlet portion 11 and the air outlet portion 51, and when the collection tube is not used, the first sealing cap 21 is used for sealing the air inlet portion 11, and the second sealing cap 22 is used for sealing the air outlet portion 51.

Example two:

referring to fig. 6, in another implementation manner of the first embodiment, a first rubber pad 331 is disposed between the supporting plate 33 and the limiting plate 34 in the first embodiment; when the filter material cake adsorption device works, the first rubber pad 331 is arranged between the supporting plate 33 and the limiting plate 34, so that a certain gap is formed between the limiting plate 34 and the filter material cake 35 after the filter material cake 35 is installed, and the absorption of gas sol nitrobenzene compounds is facilitated.

The working principle is as follows: when the device is used, firstly, the filter material cake 35 needs to be installed in the filter material shell, when the device is installed, the filter material cake 35 is placed on the supporting plate 33, the limiting plate 34 is clamped at the upper ends of the supporting plate 33 and the filter material cake 35, the limiting plate 34 limits the filter material cake 35 at the moment, so that the filter material cake 35 is always positioned in the center of the supporting plate 33, after the filter material cake 35 is installed, the filter material upper cover 1 is manually screwed into the filter material lower cover 3 through threads to complete installation of the filter material shell, then, the first air pipe 4 and the second air pipe 5 are manually assembled, and the second connecting pipe 42 is connected with the second air pipe 5 through the threads, so that the first air pipe 4 and the second air pipe 5 are fixed;

the first air pipe 4 and the second air pipe 5 are assembled at the bottom of the filter material shell together, a sliding buckle 412 at the top of the first air pipe 4 is manually driven to slide in a buckle groove, the first air pipe 4 and the connecting part 31 are fixed, when the first connecting pipe 41 is clamped with the connecting part 31, a rubber gasket at the top of the first connecting pipe 41 is positioned in the connecting part 31 and is matched with a rubber ring 413 arranged at the bottom of the first connecting pipe 41, when the first connecting pipe 41 is tightly clamped with the connecting part 31, the first connecting pipe 41 and the connecting part 31 are sealed, and low collection efficiency of nitrobenzene compounds caused by leakage of gas through a gap between the first connecting pipe 41 and the connecting part 31 is avoided;

Because the glass cotton has been set gradually in trachea 4, anterior segment solid adsorption material and glass cotton, and the glass cotton has been set gradually in No. two trachea 5, back end solid adsorption material and glass cotton, consequently realize establishing ties filter material cake 35 with the solid adsorption material of two sections different packing volumes in front and back, thereby when gathering the coexistent nitrobenzene class compound of different states in the air, can adsorb vapor state and aerosol phase's nitrobenzene class compound simultaneously, make this sampling pipe use when different workplaces, all possess stronger adaptability, thereby shorten the time of gathering nitrobenzene class compound by a wide margin, and the work efficiency is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (8)

1. A nitrobenzene class compound air sampling pipe which characterized in that: comprises a filter material shell, a sealing component, a first air pipe (4) and a second air pipe (5);

the bottom end of the first air pipe (4) is communicated with the upper end of the second air pipe (5), and the bottom end of the filter material shell is communicated with the top end of the first air pipe (4); the sealing component is arranged at the other ends of the filter material shell and the second air pipe (5);

the filter material shell consists of a filter material upper cover (1), an air inlet part (11), a filter material lower cover (3) and a connecting part (31); the air inlet part (11) is arranged at the top of the filter material upper cover (1); the connecting part (31) is arranged at the bottom of the filter material lower cover (3); the outer side of the bottom end of the filter material upper cover (1) is provided with an external thread (12); the inner side of the top end of the filter material lower cover (3) is provided with an internal thread (32); a support plate (33) is clamped in the middle of the filter material lower cover (3), and a limit plate (34) is arranged at the upper end of the support plate (33); and a filter cake (35) is arranged between the limiting plate (34) and the supporting plate (33).

2. The nitrobenzene compound air sampling tube according to claim 1, wherein: the connecting part (31) is provided with two groups of clamping grooves (311), and the clamping grooves (311) are arranged; the two groups of clamping grooves (311) are symmetrically formed in the side wall of the connecting portion (31).

3. The nitrobenzene compound air sampling tube according to claim 2, wherein: the top end of the first air pipe (4) is provided with a first connecting pipe (41), and the top side wall of the first connecting pipe (41) is fixedly connected with symmetrically arranged slide fasteners (412).

4. The nitrobenzene compound air sampling tube according to claim 3, wherein: a second rubber pad (411) is arranged at the top end of the first connecting pipe (41), and a rubber ring (413) is arranged at the bottom end of the first connecting pipe (41); the bottom end of the first air pipe (4) is provided with a second connecting pipe (42).

5. The nitrobenzene compound air sampling tube according to claim 4, wherein: the second connecting pipe (42) is in threaded connection with the top of the second air pipe (5), and a third rubber pad (421) is arranged between the second connecting pipe (42) and the second air pipe (5); an air outlet part (51) is arranged at the bottom of the second air pipe (5).

6. The nitrobenzene compound air sampling tube according to claim 5, wherein: the sliding buckle (412) is connected in the clamping groove (311) in a sliding mode, and the second rubber pad (411) is located in the connecting portion (31).

7. The nitrobenzene compound air sampling tube according to claim 6, wherein: the rubber ring (413) is arranged between the connecting part (31) and the first connecting pipe (41).

8. The nitrobenzene compound air sampling tube according to claim 7, wherein: the sealing assembly consists of a first sealing cap (21) and a second sealing cap (22); the first sealing cap (21) is in threaded connection with the top end of the air inlet portion (11), and the second sealing cap (22) is in threaded connection with the bottom end of the air outlet portion (51).

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