CN217331786U

CN217331786U - Multi-channel gas sampling box for atmospheric detection

Info

Publication number: CN217331786U
Application number: CN202220198673.2U
Authority: CN
Inventors: 陈爱梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-08-30
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses a multi-channel gas sampling box for atmosphere detection, which comprises a bottom plate, a box body, a first placing groove arranged at the bottom end inside the box body, a first gas pump arranged inside the first placing groove, a gas concentration cavity communicated with the top end of the first placing groove, a gas sampling cavity communicated with the side surface of the gas concentration cavity, a waste gas recovery mechanism arranged inside the box body, a gas pipe arranged between the waste gas concentration box and the gas concentration cavity, a second placing groove arranged on the side surface of the inner wall of the waste gas concentration box, a second gas pump arranged inside the second placing groove, an exhaust pipe arranged on the other side surface of the inner wall of the second placing groove, a second exhaust valve arranged on the side surface of the box body, and a waste gas recovery mechanism arranged inside the box body, thereby ensuring that residual gas is not mixed with gas to be sampled when next sampling is carried out, thereby ensuring that the gas purity is more accurate when sampling each time.

Description

Multi-channel gas sampling box for atmospheric detection

Technical Field

The utility model relates to a sampling equipment field especially relates to a multichannel gas sampling case for atmosphere detection.

Background

At present, when workers detect air at different positions in different areas, a gas sampling box is often required to be used;

the utility model discloses a gas sampling case for atmosphere detection as utility model discloses that bulletin number is CN210863294U, it makes the inside of box can deposit the gas of three kinds of different areas or positions, not only made things convenient for the staff to take a sample and collected, and also improved the practical value of this gas sampling case, consequently increased the practicality of this gas sampling case, but the gas sampling case among the prior art can not be totally discharged clean with inside gas behind the gaseous discharge sample, can lead to residual gas and the gas mixture who treats the sample when taking a sample next time, thereby cause the gaseous purity of sample not high.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art not enough, the utility model provides an atmosphere detects uses multichannel gas sampling case can solve gas sampling case and can not be totally arrange inside gas totally behind the exhaust sample gas, can lead to residual gas and the gas mixture who treats the sample when carrying out next sample to cause the not high technical problem of the purity of sample gas.

In order to solve the technical problem, the utility model provides a following technical scheme: a multi-channel gas sampling box for atmospheric detection comprises a bottom plate, a box body arranged at the top end of the bottom plate, a first placing groove arranged at the bottom end in the box body, a first air pump arranged in the first placing groove, a gas concentration cavity communicated with the top end of the first placing groove, a gas sampling cavity communicated with the side surface of the gas concentration cavity, and a waste gas recovery mechanism arranged in the box body, and the waste gas recovery mechanism is arranged at the top end of the gas concentration cavity and comprises a waste gas concentration box which is arranged inside the box body, and the gas-supply pipe has been seted up between waste gas centralized box and the gas centralized chamber, and the second standing groove has been seted up to the inner wall side of waste gas centralized box, and the second air pump has been placed to the inside of second standing groove, and the blast pipe has been seted up in the inside of another inner wall side of second standing groove and run through in the box, and the side of box is provided with and blast pipe assorted second discharge valve.

As an optimized technical scheme of the utility model, the inner wall of waste gas collection case is provided with the atmospheric pressure caliber, and the outer wall of box is provided with the atmospheric pressure display.

As a preferred technical scheme of the utility model, the top of second standing groove is provided with the loading and unloading subassembly.

As a preferred technical scheme of the utility model, the loading and unloading subassembly is including articulated piece, clamp plate, fixed plate and fastener, and articulated piece sets up on the top surface of box, and articulated piece is provided with two, two along the symmetry axis symmetry of second standing groove the activity is provided with the clamp plate between the inboard of articulated piece, and the top of box is provided with the fastener, passes through fastener fixed connection between the one end of fastener and clamp plate.

As a preferred technical scheme of the utility model, the fixed plate is provided with two, two the fixed plate sets up along the symmetry axis symmetry of clamp plate.

As an optimal technical scheme of the utility model, the clamp plate is provided with first sealed the pad with the contact department of second standing groove, and sealed pad splices with the bottom edge of clamp plate.

As an optimized technical scheme of the utility model, the side of box is provided with first exhaust valve.

As an optimal technical scheme of the utility model, the gas sampling chamber is provided with a plurality ofly, and is a plurality of the gas sampling chamber all is provided with the control valve with the intercommunication department in gas concentration chamber, and the top of box is provided with the controller.

As an optimized technical scheme of the utility model, the bottom plate is detachable, and the block is connected between bottom plate and the box.

As an optimal technical scheme of the utility model, the bottom of bottom plate is provided with waterproof pad, and the bottom plate is provided with the sealed pad of second with the contact department of box.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

through being provided with waste gas recovery mechanism in the inside of box, utilize the second standing groove with the inside gaseous whole take out of box and discharge outside the box, can not cause residual gas and treat the gas mixture of sample when taking a sample next time to gas purity when having guaranteed at every turn to take a sample is more accurate.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a multi-channel gas sampling box of the present invention;

FIG. 2 is a schematic view of the multi-channel gas sampling box of the present invention;

FIG. 3 is a schematic cross-sectional view of the multi-channel gas sampling box of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

wherein: 1. a base plate; 2. a box body; 3. a first placing groove; 4. a gas concentration chamber; 5. a waste gas recovery mechanism; 51. an exhaust gas collection box; 52. a gas delivery pipe; 53. a second placing groove; 54. an exhaust pipe; 55. a second exhaust valve; 56. assembling and disassembling the assembly; 561. a hinged block; 562. pressing a plate; 563. a fixing plate; 564. a fastener; 57. a barometric pressure display; 58. an air pressure measurer; 6. a gas sampling chamber; 7. a first exhaust valve.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Examples

Referring to fig. 1-4, the utility model provides a multi-channel gas sampling box for atmosphere detection, which comprises a bottom plate 1, a box body 2 arranged at the top end of the bottom plate 1, a first placing groove 3 arranged at the bottom end inside the box body 2, a first air pump arranged inside the first placing groove 3, a gas concentration chamber 4 communicated with the top end of the first placing groove 3, a gas sampling chamber 6 communicated with the side surface of the gas concentration chamber 4, a waste gas recovery mechanism 5 arranged inside the box body 2, and a waste gas recovery mechanism 5 arranged at the top end of the gas concentration chamber 4, wherein the waste gas recovery mechanism 5 comprises a waste gas concentration box 51, the waste gas concentration box 51 is arranged inside the box body 2, a gas pipe 52 is arranged between the waste gas concentration box 51 and the gas concentration chamber 4, a second placing groove 53 is arranged on the side surface of the inner wall of the waste gas concentration box 51, and a second air pump is arranged inside the second placing groove 53, an exhaust pipe 54 is disposed on the other inner wall side of the second placement groove 53 and penetrates the inside of the box body 2, and a second exhaust valve 55 matched with the exhaust pipe 54 is disposed on the side of the box body 2.

Through being provided with waste gas recovery mechanism 5 in the inside of box 2, utilize second standing groove 53 to take out the inside gas of box 2 is whole and outside discharging box 2 to the gas purity when having guaranteed to take a sample at every turn is more accurate.

As a further embodiment of this embodiment, as shown in fig. 3, an air pressure measuring instrument 58 is provided on the inner wall of the exhaust gas collecting box 51, and an air pressure display 57 is provided on the outer wall of the box body 2.

When the exhaust gas pressure inside the exhaust gas concentration tank 51 is too high, information can be transmitted by the gas pressure measuring device 58 and displayed by the gas pressure display 57, thereby ensuring the safety inside the tank body 2.

As a further embodiment of this embodiment, as shown in fig. 1, a loading and unloading unit 56 is provided at the top end of the second placement groove 53.

The mounting and dismounting unit 56 is provided at the top end of the second placing tank 53 for facilitating the placing and taking out of the second air pump.

As a further embodiment of this embodiment, as shown in fig. 2 and fig. 3, the loading and unloading assembly 56 includes a hinge block 561, a pressing plate 562, a fixing plate 563 and a fastening piece 564, the hinge block 561 is disposed on the top end surface of the case 2, the hinge block 561 is symmetrically disposed along the symmetry axis of the second placing groove 53, the pressing plate 562 is movably disposed between the inner sides of the two hinge blocks 561, through holes are formed through two sides of one end of the pressing plate 562, a fixing plate 563 is disposed on the top end of the case 2, threaded holes are formed through two ends of the fixing plate 563, the fixing plate 563 is fixedly connected to one end of the pressing plate 562 through the fastening piece 564, and the fastening piece 564 is tightly screwed to the fixing plate 563 through the through holes, thereby fixing the pressing plate 562.

As a further embodiment of this embodiment, as shown in fig. 2, two fixing plates 563 are provided, and the two fixing plates 563 are provided symmetrically along the axis of symmetry of the pressure plate 562.

The two fixing plates 563 are symmetrically disposed to ensure that the fixing plates 563 are fixed more firmly.

As a further embodiment of this embodiment, as shown in fig. 4, a first sealing gasket is disposed at a contact portion of the pressing plate 562 and the second placing groove 53, and the sealing gasket is glued to a bottom edge of the pressing plate 562.

The first sealing pad is disposed at the contact portion between the pressure plate 562 and the second placing groove 53 to ensure better airtightness inside the case 2, and prevent gas from leaking into the atmosphere or air from entering the inside of the case 2.

As a further embodiment of the present embodiment, as shown in fig. 3, a first exhaust valve 7 is provided on a side surface of the case 2.

As a further embodiment of this embodiment, as shown in fig. 3, a plurality of gas sampling chambers 6 are provided, control valves are provided at the communication positions of the plurality of gas sampling chambers 6 and the gas concentration chamber 4, and a controller is provided at the top end of the box body 2.

The gas sampling cavities 6 are provided with a plurality of control valves to facilitate the mixing of the gas, so that the purity of the collected gas is improved.

As a further embodiment of this embodiment, as shown in FIG. 3, the base plate 1 is detachable, and the base plate 1 and the case 2 are engaged with each other.

The base plate 1 is detachably provided to facilitate the removal of the first air pump.

As a further embodiment of this embodiment, as shown in fig. 3, a waterproof gasket is disposed at the bottom end of the bottom plate 1, and a second gasket is disposed at the contact position of the bottom plate 1 and the box body 2.

The bottom of the bottom plate 1 is provided with a waterproof pad to ensure that water enters the bottom of the bottom plate 1, and the contact part of the bottom plate 1 and the box body 2 is provided with a second sealing pad to ensure that the air tightness inside the box body 2 is better.

The working process is as follows:

after the sampling gas is discharged through the first exhaust valve 7, the second exhaust valve 55 and the first exhaust valve 7 are completely closed, the second air pump in the second placing groove 53 is started, the gas in the box body 2 is pumped into the waste gas collecting box 51 through the gas pipe 52, and the second exhaust valve 55 is opened again to discharge the gas through the exhaust pipe 54, so that the discharge of the residual gas in the box body 2 is ensured, and the gas purity is more accurate when sampling at every time.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an atmosphere detects uses gaseous sampling case of multichannel, includes bottom plate (1), sets up box (2) on bottom plate (1) top, sets up first standing groove (3) in the inside bottom department of box (2), and first air pump has been placed to the inside of first standing groove (3), and the top intercommunication of first standing groove (3) has gas centralized cavity (4), and the side intercommunication of gas centralized cavity (4) has gas sampling chamber (6), its characterized in that: the inside of box (2) is provided with waste gas recovery mechanism (5), and waste gas recovery mechanism (5) set up the top at gas concentration chamber (4), waste gas recovery mechanism (5) are including waste gas concentration case (51), waste gas concentration case (51) are seted up in the inside of box (2), and gas supply pipe (52) have been seted up between waste gas concentration case (51) and gas concentration chamber (4), second standing groove (53) have been seted up to the inner wall side of waste gas concentration case (51), the second air pump has been placed to the inside of second standing groove (53), blast pipe (54) have been seted up in the inside of box (2) just to another inner wall side of second standing groove (53), the side of box (2) be provided with blast pipe (54) assorted second discharge valve (55).

2. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: an air pressure measurer (58) is arranged on the inner wall of the waste gas collecting box (51), and an air pressure display (57) is arranged on the outer wall of the box body (2).

3. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: the top end of the second placing groove (53) is provided with a loading and unloading assembly (56).

4. A multi-channel gas sampling box for atmospheric testing as defined in claim 3, wherein: handling subassembly (56) is including articulated piece (561), clamp plate (562), fixed plate (563) and fastener (564), and articulated piece (561) set up the top end surface at box (2), and articulated piece (561) are provided with two along the symmetry axis symmetry of second standing groove (53), two the activity is provided with clamp plate (562) between the inboard of articulated piece (561), and the top of box (2) is provided with fixed plate (563), passes through fastener (564) fixed connection between the one end of fixed plate (563) and clamp plate (562).

5. A multi-channel gas sampling box for atmosphere detection as recited in claim 4, wherein: the number of the fixing plates (563) is two, and the two fixing plates (563) are symmetrically arranged along the symmetry axis of the pressing plate (562).

6. A multi-channel gas sampling box for atmosphere detection as recited in claim 4, wherein: the contact department of clamp plate (562) and second standing groove (53) is provided with first sealed pad, and the sealed bottom edge that fills up and clamp plate (562) splices.

7. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: and a first exhaust valve (7) is arranged on the side surface of the box body (2).

8. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: the gas sampling cavity (6) is provided with a plurality of gas sampling cavities, the gas sampling cavities (6) are communicated with the gas concentration cavity (4) through control valves, and a controller is arranged at the top end of the box body (2).

9. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: the bottom plate (1) is detachable, and the bottom plate (1) is connected with the box body (2) in a clamping manner.

10. A multi-channel gas sampling box for atmospheric testing as defined in claim 1, wherein: the bottom of bottom plate (1) is provided with waterproof pad, and the department of contact of bottom plate (1) and box (2) is provided with the sealed pad of second.