CN217331779U

CN217331779U - Gaseous sampling device of emergent monitoring of environment

Info

Publication number: CN217331779U
Application number: CN202123117152.4U
Authority: CN
Inventors: 张优
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-08-30
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses an environmental emergency monitoring gas sampling device, which comprises a shell, a negative pressure cavity is arranged in the shell, an installation opening is arranged at the inner top of the negative pressure cavity, a box body is arranged in the installation opening, an external thread is arranged at the outer side of the box body, and an internal thread matched with the external thread is arranged in the installation opening; a negative pressure mechanism for generating negative pressure is arranged in the negative pressure cavity; the inside gaseous mechanism of storing that sets up of box body, the interior bottom of box body is provided with a plurality of intercommunication mouths, the headspace intercommunication of box body has the outlet duct. The sampling device adopts split type arrangement, when gas collection is required to be carried out for many times, only the box body is required to be replaced, and the portability of use is greatly improved.

Description

Gaseous sampling device of emergent monitoring of environment

Technical Field

The utility model relates to a gaseous sampling technical field especially relates to a gaseous sampling device of emergent monitoring of environment.

Background

Gas sampling refers to the process of collecting samples of pollutants or polluted air samples in the atmosphere, generally, air containing pollutants is collected by a container, and the instantaneous concentration or the average concentration in a short time is measured;

however, the existing collecting devices generally adopt single collection, and in the actual using process, the common sampling is performed at different positions for multiple times, multiple collecting devices are required to be used for multiple times of sampling, and the common sampling devices are all integrally arranged, so that the carrying inconvenience is obviously caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the gaseous sampling device of the emergent monitoring in environment that proposes, this sampling device adopt split type setting, when needs carry out gaseous collection many times, only need to change the box body of adoption can, improved the portability of using greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an environmental emergency monitoring gas sampling device comprises a shell, wherein a negative pressure cavity is arranged in the shell, an installation opening is formed in the inner top of the negative pressure cavity, a box body is arranged in the installation opening, external threads are arranged on the outer side of the box body, and internal threads matched with the external threads are arranged in the installation opening; a negative pressure mechanism for generating negative pressure is arranged in the negative pressure cavity; the box body is internally provided with a gas storage mechanism for storing gas, the inner bottom of the box body is provided with a plurality of communicating ports, and the top space of the box body is communicated with an air outlet pipe;

preferably, a manual valve is installed in the air outlet pipe.

Preferably, negative pressure mechanism includes the first piston plate of sliding connection in the negative pressure intracavity, the lower extreme of first piston plate and the interior bottom in negative pressure chamber are through recovering spring elastic connection, the lower extreme fixedly connected with connecting rod of first piston plate, the lower extreme of connecting rod runs through negative pressure intracavity bottom to fixedly connected with pull ring.

Preferably, the sealed pad is installed at the interior top of casing, sealed pad is cyclic annular, sealed pad is located internal thread and external screw thread junction under.

Preferably, the gas storage mechanism comprises a second piston plate connected in the box body in a sliding mode, the lower end of the second piston plate is elastically connected with the inner bottom of the box body through a force storage spring, and the top space of the box body is communicated with the outside through a one-way air inlet.

Preferably, a check valve is installed in the one-way air inlet 7.

Compared with the prior art, the utility model, its beneficial effect does:

with split type setting, can be very light just can gather the gas of different positions, and during the follow-up carrying, carry a casing and a plurality of box body can, occupation space relative reduction.

And when the collected air needs to be released subsequently, the other end of the air outlet pipe is connected to the position needing to be released, the manual valve is opened, the second piston plate moves upwards and extrudes the stored air through the air outlet pipe under the elastic action of the force storage spring, and the subsequent air is also convenient to take out.

Drawings

Fig. 1 is a schematic structural view of an environmental emergency monitoring gas sampling device provided by the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of the cassette of FIG. 1;

fig. 4 is an enlarged view of the housing of fig. 1.

In the figure: the device comprises a shell 1, a negative pressure cavity 2, a first piston plate 3, a connecting rod 4, a recovery spring 5, a box body 6, a one-way air inlet 7, an air outlet pipe 8, a second piston plate 9, a power storage spring 10, an external thread 11, an internal thread 12, a sealing gasket 13, a communication port 14 and a mounting port 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an environmental emergency monitoring gas sampling device comprises a shell 1, wherein a negative pressure cavity 2 is arranged in the shell 1, an installation opening 15 is formed in the inner top of the negative pressure cavity 2, a box body 6 is arranged in the installation opening 15, the box body 6 is cylindrical, the installation opening 15 is also a cylindrical groove, an external thread 11 is arranged on the outer side of the box body 6, and an internal thread 12 matched with the external thread 11 is arranged in the installation opening 15;

a negative pressure mechanism for generating negative pressure is arranged in the negative pressure cavity 2, the negative pressure mechanism comprises a first piston plate 3 which is connected in the negative pressure cavity 2 in a sliding manner, the lower end of the first piston plate 3 is elastically connected with the inner bottom of the negative pressure cavity 2 through a restoring spring 5, the lower end of the first piston plate 3 is fixedly connected with a connecting rod 4, and the lower end of the connecting rod 4 penetrates through the inner bottom of the negative pressure cavity 2 and is fixedly connected with a pull ring;

a gas storage mechanism for storing gas is arranged in the box body 6, the gas storage mechanism comprises a second piston plate 9 which is connected in the box body 6 in a sliding mode, the lower end of the second piston plate 9 is elastically connected with the inner bottom of the box body 6 through a power storage spring 10, the top space of the box body 6 is communicated with the outside through a one-way air inlet 7, a one-way valve is arranged in the one-way air inlet 7, the flow direction of the one-way valve is that the outside enters the box body 6 in a one-way mode, a plurality of communication ports 14 are formed in the inner bottom of the box body 6, the top space of the box body 6 is communicated with an air outlet pipe 8, and a manual valve is arranged in the air outlet pipe 8;

sealing gasket 13 is installed at the interior top of casing 1, and sealing gasket 13 is cyclic annular, and sealing gasket 13 is located internal thread 12 and external screw thread 11 junction under, carries out threaded connection back when box body 6 and installing port 15, and sealing gasket 13 has guaranteed the leakproofness of junction.

In the utility model, in use, as shown in fig. 1, when the user needs to collect gas, the user can pull the connecting rod 4 downwards, the connecting rod 4 moves downwards to drive the first piston plate 3 to move downwards, and the restoring spring 5 is in a compressed state, and after the first piston plate 3 moves downwards, the space between the top space of the negative pressure cavity 2 and the bottom space of the box body 6 is enlarged and is in a negative pressure state, and then under the action of negative pressure, the second piston plate 9 moves downwards, and the gas is sucked into the top space of the box body 6 from the outside through the one-way air inlet 7, and the second piston plate 9 moves downwards to enable the power storage spring 10 to be in a compressed state;

after the process is finished, the outside air is stored in the box body 6, after the next position is used for collecting the air, the box body 6 is unscrewed, the mounting opening 15 is in a dredging state after the box body is unscrewed, and the first piston plate 3 can restore the initial state under the elastic action of the restoring spring 5, then a new box body 6 is arranged, and the actions are fully carried out at the other position;

adopt split type setting, can be very light just can gather the gas of different positions, and during follow-up carrying, carry a casing 1 and a plurality of box body 6 can, occupation space is relative reduces, and when follow-up needs released the air of gathering, be connected to needs release department with the other end of outlet duct 8, open manual valve, receive the elastic action of holding power spring 10, second piston plate 9 shifts up and passes through outlet duct 8 extrusion with the gas of storing, it is also comparatively convenient that subsequent gas takes out.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An environmental emergency monitoring gas sampling device comprises a shell (1) and is characterized in that a negative pressure cavity (2) is arranged in the shell (1), a mounting opening (15) is formed in the inner top of the negative pressure cavity (2), a box body (6) is arranged in the mounting opening (15), external threads (11) are arranged on the outer side of the box body (6), and internal threads (12) matched with the external threads (11) are arranged in the mounting opening (15);

a negative pressure mechanism for generating negative pressure is arranged in the negative pressure cavity (2);

the inside gaseous mechanism of storing that sets up of box body (6), the interior bottom of box body (6) is provided with a plurality of intercommunication mouths (14), the headspace intercommunication of box body (6) has outlet duct (8).

2. The environmental emergency monitoring gas sampling device according to claim 1, wherein a manual valve is installed in the gas outlet pipe (8).

3. The environmental emergency monitoring gas sampling device according to claim 1, wherein the negative pressure mechanism comprises a first piston plate (3) slidably connected in the negative pressure chamber (2), the lower end of the first piston plate (3) is elastically connected with the inner bottom of the negative pressure chamber (2) through a restoring spring (5), the lower end of the first piston plate (3) is fixedly connected with a connecting rod (4), and the lower end of the connecting rod (4) penetrates through the inner bottom of the negative pressure chamber (2) and is fixedly connected with a pull ring.

4. The environmental emergency monitoring gas sampling device according to claim 1, wherein a sealing gasket (13) is installed at the top inside the housing (1), the sealing gasket (13) is annular, and the sealing gasket (13) is located right below the joint of the internal thread (12) and the external thread (11).

5. The environmental emergency monitoring gas sampling device according to claim 1, wherein the gas storage mechanism comprises a second piston plate (9) slidably connected in the box body (6), the lower end of the second piston plate (9) is elastically connected with the inner bottom of the box body (6) through a power storage spring (10), and the top space of the box body (6) is communicated with the outside through a one-way gas inlet (7).

6. An environmental emergency monitoring gas sampling device according to claim 5, characterized in that a one-way valve is installed in the one-way gas inlet (7).