CN220982828U

CN220982828U - Gas sampling device

Info

Publication number: CN220982828U
Application number: CN202322437269.3U
Authority: CN
Inventors: 戴如义; 尹志军; 刘艳利
Original assignee: Nanjing Better Safety Equipment Co ltd
Current assignee: Nanjing Better Safety Equipment Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-05-17
Anticipated expiration: 2033-09-08

Abstract

The utility model relates to the field of sampling, in particular to a gas sampling device. The gas sampling device comprises a gas pumping cylinder; one end of the air suction cylinder is fixedly provided with a communicated air pipe, one side of the air pipe is welded with a communicated air inlet pipe, a first one-way valve is fixedly arranged on the air pipe, a second one-way valve is fixedly arranged on the air inlet pipe, and the air suction cylinder further comprises; the connecting end is welded at the other end of the gas pipe; the gas storage bottle is characterized in that a connecting assembly is fixed at the bottle mouth of the gas storage bottle and is detachably connected to the connecting end through the connecting assembly. In the gas sampling device provided by the utility model, the gas storage bottle is fixed on the connecting end through the connecting component, so that the gas in the gas suction cylinder can be introduced into the gas storage bottle, and when the connecting component is arranged in the connecting end, the connecting component can be automatically opened, so that the gas storage bottle is communicated with the connecting end, and when the connecting component is detached, the connecting component can be in a closed state again, so that the transfer effect of the gas sample is better.

Description

Gas sampling device

Technical Field

The utility model relates to the field of sampling, in particular to a gas sampling device.

Background

In the case of gas sampling, a gas extraction device such as a syringe is generally used, and after a predetermined region of gas is extracted through the gas extraction device, the gas is introduced into a gas collection bottle for storing the sample.

However, the following drawbacks and disadvantages exist in the implementation process:

In the process of introducing the gas inside the air extractor into the gas collecting bottle, the external gas easily enters the gas collecting bottle, so that the sample gas loaded in the gas collecting bottle is polluted, and the subsequent detection result is influenced.

Therefore, it is necessary to provide a new gas sampling apparatus to solve the above-mentioned problems.

Disclosure of utility model

In order to solve the above technical problems, the present utility model provides a gas sampling apparatus.

The utility model provides a gas sampling device, which comprises a gas extraction cylinder;

One end of the air suction cylinder is fixedly provided with a communicated air pipe, one side of the air pipe is welded with a communicated air inlet pipe, a first one-way valve is fixedly arranged on the air pipe, a second one-way valve is fixedly arranged on the air inlet pipe, and the air suction cylinder further comprises;

the connecting end is welded at the other end of the gas pipe;

The gas storage bottle is characterized in that a connecting assembly is fixed at the bottle mouth of the gas storage bottle and is detachably connected to the connecting end through the connecting assembly.

Preferably, the air flow of the first one-way valve flows to a position facing the connecting end, and the air flow of the second one-way valve flows to a position facing the air delivery pipe.

Preferably, the connecting end comprises a cylindrical end shell, an opening penetrating through the lower end face is formed in the end shell, a plurality of annularly distributed positioning sliding grooves are formed in the inner wall of the opening, and a plurality of bayonets communicated with the positioning sliding grooves are further formed in the inner wall of the opening.

Preferably, the end shell is welded to the lower end of the gas pipe and communicated with the gas pipe.

Preferably, the connecting component comprises a bottom plate, a plurality of first air holes which are annularly distributed are formed in the position, close to the edge, of the bottom plate, a caulking groove is formed in the center of the upper end part of the bottom plate, and a plurality of positioning clamping blocks which are annularly distributed are integrally connected to the side wall of the bottom plate;

The upper part of the bottom plate is provided with a laminated rotating plate, the rotating plate is provided with second air holes corresponding to the first air holes in number, the central position of the lower end part of the rotating plate is welded with a rotating shaft, the lower end face of the rotating plate is adhered with a plurality of rubber sheets, and the side wall of the rotating plate is integrally connected with positioning sliding blocks which correspond to the positioning clamping blocks in position and number and have the same shape;

the rotating shaft is embedded and rotates in the caulking groove, and the first air hole and the second air hole are completely corresponding or completely staggered through the rotation of the rotating plate relative to the bottom plate.

Preferably, when the first air hole and the second air hole are completely corresponding, the positioning clamping block and the positioning sliding block are completely staggered, and when the positioning clamping block and the positioning sliding block are completely staggered, the rubber sheet is filled in the first air hole, and the positioning clamping block and the positioning sliding block are completely corresponding.

Preferably, the bottom plate is welded to the bottleneck of the gas storage bottle, the bottom plate and the rotating plate can be embedded in the end shell along the opening, and the positioning clamping block can be embedded in the bayonet.

Preferably, the other end of the air inlet pipe is fixedly provided with a communicated air exhaust hose, and the other end of the air exhaust hose is fixedly provided with an air exhaust end.

Compared with the related art, the gas sampling device provided by the utility model has the following beneficial effects:

The utility model provides a gas sampling device, wherein a gas storage bottle is fixed on a connecting end through a connecting component, so that gas in a gas suction cylinder can be introduced into the gas storage bottle, and when the connecting component is installed in the connecting end, the connecting component can be automatically opened, so that the gas storage bottle is communicated with the connecting end, and when the connecting component is detached, the connecting component can be in a closed state again, thereby having better transfer effect on sample gas.

Drawings

FIG. 1 is a schematic diagram of a gas sampling apparatus according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a connecting head according to the present utility model;

FIG. 4 is a schematic view of a connection assembly according to the present utility model;

fig. 5 is a schematic structural view of a rotating plate according to the present utility model.

Reference numerals in the drawings: 1. a suction cylinder; 2. a gas pipe; 3. an air inlet pipe; 4. a first one-way valve; 5. a second one-way valve; 6. a connecting end; 61. an end cap shell; 62. positioning a chute; 63. a bayonet; 7. a gas cylinder; 8. a connection assembly; 81. a base; 82. a first air hole; 83. positioning a clamping block; 84. a caulking groove; 85. a rotating plate; 86. a second air hole; 87. positioning a sliding block; 88. a rotating shaft; 89. a rubber sheet; 9. an air extraction hose; 10. and an air extraction end.

Description of the embodiments

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 5, a gas sampling apparatus according to an embodiment of the present utility model includes a pump 1;

One end of the air suction cylinder 1 is fixedly provided with a communicated air delivery pipe 2, one side of the air delivery pipe 2 is welded with a communicated air inlet pipe 3, the other end of the air delivery pipe 3 is fixedly provided with a communicated air suction hose 9, the other end of the air suction hose 9 is fixedly provided with an air suction end head 10, the air delivery pipe 2 is fixedly provided with a first one-way valve 4, the air delivery pipe 3 is fixedly provided with a second one-way valve 5, the air flow direction of the first one-way valve 4 faces to the position of the connecting end head 6, and the air flow direction of the second one-way valve 5 faces to the position of the air delivery pipe 2;

the connecting end 6 is welded at the other end of the gas pipe 2;

The gas bomb 7, the bottleneck department of gas bomb 7 is fixed with coupling assembling 8 to through coupling assembling 8 detachable connection on connecting end 6.

It should be noted that: in the device, the end part of the air suction cylinder 1 is provided with the air delivery pipe 2 and the air inlet pipe 3, when the device is used, air is sucked through the air suction cylinder 1, so that the air enters the air suction cylinder 1 along the air inlet pipe 3, the air is led into the air delivery pipe 2 through the air suction cylinder 1 and finally enters the air storage bottle 7, and the two one-way valves can better control the flow direction of air flow;

Also to be described is: the connecting end 6 is fixed at the lower end of the gas pipe 2, the gas storage bottle 7 is fixed on the connecting end 6 through the connecting component 8, in the unconnected state, the whole connecting component 8 seals the gas storage bottle 7, and after the connecting component 8 is fixed inside the connecting end 6, the connecting component 8 is opened, so that gas can enter the gas storage bottle 7, and leakage can not occur during gas transfer.

In the embodiment of the present utility model, referring to fig. 1 and 3, the connecting end 6 includes a cylindrical end shell 61, an opening penetrating through the lower end surface is formed in the end shell 61, a plurality of positioning sliding grooves 62 distributed annularly are formed in the inner wall of the opening, and a plurality of bayonets 63 communicated with the positioning sliding grooves 62 are formed in the inner wall of the opening;

Wherein the tip shell 61 is welded to the lower end of the gas delivery pipe 2 and communicates therewith.

In the embodiment of the present utility model, referring to fig. 1, 4 and 5, the connecting assembly 8 includes a bottom plate 81, a plurality of first air holes 82 distributed annularly are formed on the bottom plate 81 near the edge, a caulking groove 84 is formed in the center of the upper end portion of the bottom plate 81, and a plurality of positioning clamping blocks 83 distributed annularly are integrally connected to the side wall of the bottom plate 81;

A laminated rotating plate 85 is arranged above the bottom plate 81, second air holes 86 corresponding to the first air holes 82 in position and number are formed in the rotating plate 85, a rotating shaft 88 is welded at the central position of the lower end part of the rotating plate 85, a plurality of rubber sheets 89 are adhered to the lower end surface of the rotating plate, and positioning sliding blocks 87 corresponding to the positioning clamping blocks 83 in position and number and identical in shape are integrally connected to the side wall of the rotating plate 85;

The rotating shaft 88 is embedded and rotated in the embedded groove 84, and the first air hole 82 and the second air hole 86 are completely corresponding or completely staggered through the rotation of the rotating plate 85 relative to the bottom plate 81;

Meanwhile, when the first air hole 82 and the second air hole 86 are completely corresponding, the positioning clamping block 83 and the positioning sliding block 87 are completely staggered, and when the positioning clamping block 83 and the positioning sliding block 87 are completely staggered, the rubber sheet 89 is filled in the first air hole 82, and the positioning clamping block 83 and the positioning sliding block 87 are completely corresponding;

Wherein, the bottom plate 81 is welded to the mouth of the gas cylinder 7, and the bottom plate 81 and the rotating plate 85 can be embedded inside the end shell 61 along the opening, and the positioning fixture block 83 can be embedded inside the bayonet 63.

It should be noted that: in the mounting process, the air holes on the bottom plate 81 and the rotating plate 85 are in a completely staggered state, so that the positioning clamping blocks 83 can completely correspond to the positioning sliding blocks 87, and in the corresponding state, both the positioning clamping blocks can slide in the positioning sliding grooves 62, so that the positioning clamping blocks can be embedded in the end head shell 61;

after the rotating plate 85 abuts against the inner top wall of the end shell 61, the positioning clamping block 83 is located at the position of the bayonet 63, and at this time, the gas storage bottle 7 is rotated to drive the bottom plate 81 to rotate together, so that the positioning clamping block 83 is embedded in the bayonet 63, that is, the gas storage bottle 7 can be installed and fixed, and in this state, the first air hole 82 and the second air hole 86 completely correspond, so that gas can enter the gas storage bottle 7;

After the end, the gas cylinder 7 needs to be rotated again, so that the positioning clamping block 83 is separated from the inside of the bayonet 63 and enters the positioning sliding groove 62 again, at this time, the first air hole 82 and the second air hole 86 are completely staggered again, and the rubber sheet 89 is filled in the inside of the second air hole 86, so that the gas cylinder 7 is completely sealed.

The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims

1. A gas sampling device comprising a gas cartridge (1), characterized in that:

One end of the air suction cylinder (1) is fixedly provided with a communicated air delivery pipe (2), one side of the air delivery pipe (2) is welded with a communicated air inlet pipe (3), a first one-way valve (4) is fixedly arranged on the air delivery pipe (2), a second one-way valve (5) is fixedly arranged on the air inlet pipe (3), and the air suction cylinder further comprises;

the connecting end (6) is welded at the other end of the gas pipe (2);

The gas storage bottle comprises a gas storage bottle (7), wherein a connecting assembly (8) is fixed at the bottle opening of the gas storage bottle (7), and the gas storage bottle is detachably connected to a connecting end (6) through the connecting assembly (8).

2. A gas sampling apparatus according to claim 1, wherein the gas flow of the first one-way valve (4) is directed to a position toward the connection end (6), and the gas flow of the second one-way valve (5) is directed to a position toward the gas delivery pipe (2).

3. The gas sampling apparatus according to claim 2, wherein the connecting end (6) comprises a cylindrical end shell (61), an opening penetrating through the lower end face is formed in the end shell (61), a plurality of annularly distributed positioning sliding grooves (62) are formed in the inner wall of the opening, and a plurality of bayonets (63) communicated with the positioning sliding grooves (62) are formed in the inner wall of the opening.

4. A gas sampling apparatus according to claim 3, wherein the tip shell (61) is welded to and communicates with the lower end of the gas delivery pipe (2).

5. The gas sampling apparatus according to claim 4, wherein the connection assembly (8) comprises a bottom plate (81), a plurality of first air holes (82) distributed annularly are formed in the bottom plate (81) near the edge, a caulking groove (84) is formed in the center of the upper end portion of the bottom plate (81), and a plurality of positioning clamping blocks (83) distributed annularly are integrally connected to the side wall of the bottom plate (81);

The automatic positioning device is characterized in that a rotating plate (85) is arranged above the bottom plate (81), second air holes (86) corresponding to the first air holes (82) in position and number are formed in the rotating plate (85), a rotating shaft (88) is welded at the center of the lower end part of the rotating plate (85), a plurality of rubber sheets (89) are adhered to the lower end face of the rotating plate, and positioning sliding blocks (87) corresponding to the positioning clamping blocks (83) in position and number and identical in shape are integrally connected to the side wall of the rotating plate (85);

The rotating shaft (88) is embedded and rotates in the embedded groove (84), and the first air hole (82) and the second air hole (86) are completely corresponding or completely staggered through rotation of the rotating plate (85) relative to the bottom plate (81).

6. The gas sampling apparatus according to claim 5, wherein the positioning block (83) is completely displaced from the positioning slider (87) when the first gas hole (82) and the second gas hole (86) are completely corresponding, and the rubber sheet (89) is filled in the first gas hole (82) when the positioning block (83) is completely displaced from the positioning slider (87).

7. The gas sampling apparatus according to claim 6, wherein the bottom plate (81) is welded to the mouth of the gas cylinder (7), and the bottom plate (81) and the rotating plate (85) are embedded in the end shell (61) along the opening, and the positioning fixture block (83) is also embedded in the bayonet (63).

8. The gas sampling apparatus according to claim 7, wherein a communicating air extraction hose (9) is fixed to the other end of the air inlet pipe (3), and an air extraction end (10) is fixed to the other end of the air extraction hose (9).