CN213714867U

CN213714867U - Gas sampling device for environment detection

Info

Publication number: CN213714867U
Application number: CN202022038547.4U
Authority: CN
Inventors: 杨进
Original assignee: Jiangsu Sep Detection Service Co ltd
Current assignee: Jiangsu Sep Detection Service Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-16
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a gas sampling device for environmental test, the utility model discloses be provided with a plurality of pull rods, a piston, the piston groove, first gas circuit check valve and second gas circuit check valve etc, piston and pull rod fixed connection, the piston is under the effect of pull rod, take place the displacement in the piston groove, make the atmospheric pressure in the piston groove change along with it, when the atmospheric pressure of piston inslot changes hours, external gas gets into the piston inslot through first gas circuit check valve, when the atmospheric pressure grow of piston inslot, the gas of piston inslot discharges through second gas circuit check valve, the utility model provides a current gas sampling device operate inconvenient, manufacturing cost is high and can only collect the gaseous problem.

Description

Gas sampling device for environment detection

Technical Field

The utility model belongs to the technical field of the gas sampling, concretely relates to gas sampling device is used in environmental detection.

Background

The existing gas sampling device mainly comprises a gas sampling bag and an automatic gas sampling device.

Disadvantages of gas sampling bags: the sample gas collected by the gas sampling bag is a mixture of air and sample gas in the bag, and the purity of the sample gas is influenced by the air content; when the gas sampling bag is connected with the gas circuit, the sealing cap of the gas sampling bag needs to be removed first, so that the operation is inconvenient; when sampling, sample gas is extracted from the inlet of the sampling bag; when the gas sampling bag is used for collecting sample gas, the gas bag opening needs to be disinfected, which is troublesome, and only one gas can be collected at a time.

The disadvantages of the automatic gas sampling device are that: the manufacturing cost is high, and the volume is large; the automation degree is high, the method is suitable for large-batch detection and sampling, and is not suitable for random detection; an automatic actuating mechanism is needed, and the power consumption is large; usually, the device is integrated with a detection instrument, and has no compatibility.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas sampling device for environmental monitoring to solve the inconvenient, the high and gaseous problem that can only collect of current gas sampling device operation.

In order to achieve the above object, the utility model provides a following technical scheme: a gas sampling device for environmental testing, wherein: including the stack shell, the circular slot has been seted up on the stack shell, be provided with a plurality of piston grooves between the inner wall of stack shell and the outer wall, the fixed first ring that is provided with in top of stack shell, be provided with a plurality of first through-holes on the first ring, the fixed second ring that is provided with in bottom of stack shell, be provided with a plurality of second through-holes on the second ring, it is a plurality of the second through-hole is all connected and is provided with first gas circuit check valve, and is a plurality of the bottom in piston groove all is provided with the second gas circuit check valve, and is a plurality of the piston inslot all is provided with the piston, the fixed pull rod that is provided with in top of piston, the fixed handle that is provided with in top of.

Preferably, the number of the plurality of piston grooves, the number of the first through holes and the number of the second through holes are six.

Preferably, the first through holes and the second through holes are circular, and the piston grooves, the first through holes and the second through holes are coaxial.

Preferably, a plurality of the piston grooves are matched with the piston, and the diameter of the first through holes is consistent with that of the pull rod.

Preferably, the first circular ring is welded to the top of the cylinder body, and the second circular ring is welded to the bottom of the cylinder body.

Preferably, the air path direction of the first air path one-way valve is from the outside to the piston groove, and the air path direction of the second air path one-way valve is from the piston groove to the outside.

The technical effects and advantages of the utility model are:

firstly, the method comprises the following steps: the utility model discloses be provided with a plurality of pull rods, a piston, the piston groove, first gas circuit check valve and second gas circuit check valve etc, piston and pull rod fixed connection, the piston takes place the displacement under the effect of pull rod in the piston inslot, make the atmospheric pressure in the piston groove change along with it, when the atmospheric pressure of piston inslot changes hours, external gas gets into the piston inslot through first gas circuit check valve, when the atmospheric pressure grow of piston inslot, the gas of piston inslot passes through the discharge of second gas circuit check valve, makes the utility model discloses it is comparatively convenient to operate, manufacturing cost is lower and can collect multiple gas.

Secondly, the method comprises the following steps: the utility model discloses structure safe and reliable has good market prospect.

Thirdly, the method comprises the following steps: the utility model discloses product property can be good, long service life.

Fourthly: the utility model discloses convenient to use, convenient and fast.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a side view of an explosive structure of the present invention;

fig. 3 is a schematic structural diagram of the present invention.

In the figure: 1. a handle; 2. a pull rod; 3. a piston; 4. a first circular ring; 5. a first through hole; 6. a piston groove; 7. a barrel body; 8. a second gas path check valve; 9. a second circular ring; 10. a second through hole; 11. a circular groove; 12. the first gas circuit one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 3 of 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a gas sampling device for environmental testing as shown in FIGS. 1-3, wherein: including stack shell 7, circular slot 11 has been seted up on stack shell 7, be provided with a plurality of piston grooves 6 between the inner wall of stack shell 7 and the outer wall, the fixed first ring 4 that is provided with in top of stack shell 7, be provided with a plurality of first through-holes 5 on the first ring 4, the fixed second ring 9 that is provided with in bottom of stack shell 7, be provided with a plurality of second through-holes 10 on the second ring 9, it is a plurality of first gas circuit check valve 12, a plurality of are all connected to second through-hole 10 and are provided with second gas circuit check valve 8, a plurality of all be provided with piston 3 in the piston groove 6, the fixed pull rod 2 that is provided with in top of piston 3, the fixed handle 1 that is provided with in top of pull rod 2.

Specifically, the number of the plurality of piston grooves 6, the number of the first through holes 5, and the number of the second through holes 10 are all six.

Specifically, the first through holes 5 and the second through holes 10 are circular, and the piston grooves 6, the first through holes 5 and the second through holes 10 are coaxial.

Specifically, the plurality of piston grooves 6 are matched with the piston 3, and the diameters of the plurality of first through holes 5 are consistent with the diameter of the pull rod 2.

Specifically, the first circular ring 4 is welded to the top of the cylinder 7, and the second circular ring 9 is welded to the bottom of the cylinder 7.

Specifically, the air path direction of the first air path check valve 12 is from the outside to the piston groove 6, and the air path direction of the second air path check valve 8 is from the piston groove 6 to the outside.

The utility model discloses a theory of operation does:

the utility model discloses be provided with a plurality of pull rods 2, piston 3, piston groove 6, first gas circuit check valve 12 and second gas circuit check valve 8 etc, piston 3 and 2 fixed connection of pull rod, the gas circuit direction of first gas circuit check valve 12 is from the external world to piston groove 6, the gas circuit direction of second gas circuit check valve 8 is from piston groove 6 to the external world, piston 3 is under pull rod 2's effect, take place the displacement in piston groove 6, make the atmospheric pressure in piston groove 6 change thereupon, when the atmospheric pressure in piston groove 6 diminishes, external gas gets into in piston groove 6 through first gas circuit check valve 12, when the atmospheric pressure grow in piston groove 6, the gas in piston groove 6 is discharged through second gas circuit check valve 8, make the utility model discloses it is comparatively convenient to operate, manufacturing cost is lower and can collect multiple gas. The utility model discloses an operating procedure does: firstly, pressing the handle 1 with the palm to displace the piston 3 to the bottommost part, removing irrelevant gas in the piston groove 6 through the second gas path one-way valve 8, and then exposing the utility model in the gas to be sampled; secondly, pulling the handle 1 to enable the piston 3 to move upwards to the topmost end, wherein the air pressure of the first air path one-way valve 12 and the bottom surface of the piston 3 is lower than the external atmospheric pressure, and external air enters the piston groove 6 through the first air path one-way valve 12 under the action of the atmospheric pressure and sampling is completed; the third step, push down handle 1 with the palm of the hand and shift 3 pistons to bottommost, the gas that will accomplish the sample is discharged through second gas circuit check valve 8, and second gas circuit check valve 8 can be connected with other various check out test set, makes the utility model discloses an operation is comparatively convenient.

In summary, the following steps: the utility model provides a current gaseous sampling device operate inconvenient, manufacturing cost is high and can only collect a gaseous problem.

In the description of the present invention, it is to be understood that the terms "bottom", "front", "one side", "outer", "central", "inner", "upper", "lower", "one end", "vertical", "lower", "outer", "circumferential", "end", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 to 3, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but it is difficult to achieve absolute equality in actual production and operation, and some deviation generally exists. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the present invention, unless otherwise explicitly specified or limited, the terms "embedded", "disposed", "connected", "fixed", "distributed" and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a gas sampling device for environmental monitoring which characterized in that: comprises a cylinder body (7), a round groove (11) is arranged on the cylinder body (7), a plurality of piston grooves (6) are arranged between the inner wall and the outer wall of the cylinder body (7), a first circular ring (4) is fixedly arranged at the top of the cylinder body (7), a plurality of first through holes (5) are arranged on the first circular ring (4), a second ring (9) is fixedly arranged at the bottom of the barrel body (7), a plurality of second through holes (10) are arranged on the second ring (9), a plurality of first air passage one-way valves (12) are connected and arranged on the second through holes (10), a plurality of second air passage one-way valves (8) are arranged at the bottoms of the piston grooves (6), pistons (3) are arranged in the piston grooves (6), the top of the piston (3) is fixedly provided with a pull rod (2), and the top of the pull rod (2) is fixedly provided with a handle (1).

2. The gas sampling device for environmental monitoring according to claim 1, wherein: the number of the plurality of piston grooves (6), the number of the first through holes (5) and the number of the second through holes (10) are six.

3. The gas sampling device for environmental monitoring according to claim 1, wherein: the first through holes (5) and the second through holes (10) are circular, and the piston grooves (6), the first through holes (5) and the second through holes (10) are coaxial.

4. The gas sampling device for environmental monitoring according to claim 1, wherein: the piston grooves (6) are matched with the pistons (3), and the diameters of the first through holes (5) are consistent with the diameter of the pull rod (2).

5. The gas sampling device for environmental monitoring according to claim 1, wherein: the first circular ring (4) is connected with the top of the cylinder body (7) in a welding mode, and the second circular ring (9) is connected with the bottom of the cylinder body (7) in a welding mode.

6. The gas sampling device for environmental monitoring according to claim 1, wherein: the air path direction of the first air path one-way valve (12) is from the outside to the piston groove (6), and the air path direction of the second air path one-way valve (8) is from the piston groove (6) to the outside.