CN218067283U

CN218067283U - Novel air exhaust structure

Info

Publication number: CN218067283U
Application number: CN202222097097.5U
Authority: CN
Inventors: 曹泊; 王彦君; 唐盼; 徐辉; 宗师; 王新富; 许锋; 万亚丽
Original assignee: Jiangsu Design And Research Institute Of Geology And Mineral Resources Test Center Of China Coal Geology Administration
Current assignee: Jiangsu Design And Research Institute Of Geology And Mineral Resources Test Center Of China Coal Geology Administration
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-16
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a novel structure of bleeding, including the sampling head, its characterized in that: the sampling head is provided with a sleeve, a connecting rod is arranged in the sleeve, the end part of the connecting rod is provided with a piston, one end of the connecting rod, which is far away from the piston, is provided with a handle, the connecting rod is provided with a bolt hole and a bolt, an air guide valve is arranged in one end of the sleeve, which is close to the sampling head, a filtering interlayer is arranged between the air guide valve and the sleeve, and an array at the joint of the sleeve and the filtering interlayer is provided with an air inlet. Compared with the prior art, the utility model the advantage lie in: the soil air sampling condition that can satisfy empty gas detection survey, but the sampling volume accurate control, the sampling instrument is simple portable, can avoid polluting the detection sample among the sampling process, furthest's assurance testing result's reliability.

Description

Novel air exhaust structure

Technical Field

The utility model relates to a soil air acquisition detects the field, specifically indicates a novel structure of bleeding.

Background

Soil air is a generic term for gases present in soil, and is often present in the soil pores in a free state, in an aqueous soil solution in a dissolved state, or in soil particles in an adsorbed state. The soil air is one of the important components of the soil, has great significance for plant growth and soil formation, and is an important content for researching the fields of the subjects of soil science, agriculture, geochemistry, environmental science, chemistry and the like. Meanwhile, the soil organic carbon reservoir is the largest organic carbon reservoir in a terrestrial system and is about 2 to 3 times of the storage capacity of the atmospheric carbon reservoir, and the annual exchange amount of carbon between soil and the atmosphere is as high as 600 to 800 hundred million tons. Every minor change in the soil carbon reservoir affects the concentration of atmospheric carbon dioxide and even causes global climate change. Under the carbon peak carbon neutralization background of China, the accurate determination of gas components and change trend in soil is the premise of developing the research of soil carbon sequestration technology, and a soil air sampling method is an important foundation of the soil air research.

At present, the soil gas is collected by mainly using a closed static box, the closed static box is used for collecting the soil gas, the static box needs to be buried in advance, the gas in the box is extracted to form vacuum, and the soil gas can be diffused into the static box. The closed static box has the advantages of complex structure, long time consumption, low collection efficiency, incapability of determining the depth of collected gas in soil and inconvenience for quick and efficient collection of soil gas. In addition, the closed static box is buried to cause disturbance of surface soil to a certain extent, so that soil gas is polluted by atmosphere, and the detection result of soil gas components is influenced. Therefore, a new air pumping structure is needed to solve the problems encountered in the actual sampling work.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel structure of bleeding to above problem.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a novel structure of bleeding, includes the sampling head, installs the sleeve pipe on the sampling head, and the intraductal connecting rod that is equipped with of cover, the connecting rod tip is equipped with the piston, and the one end that the piston was kept away from to the connecting rod is equipped with the handle, is equipped with bolt hole and bolt on the connecting rod, and the sleeve pipe is close to the inside air guide valve that is equipped with of one end of sampling head, is equipped with the filtration intermediate layer between air guide valve and the sleeve pipe, and sleeve pipe and filtration intermediate layer combination department array are equipped with the air inlet, and the one end that the sampling head was kept away from to the sleeve pipe is equipped with sealed screw cap, and sealed screw cap bottom is equipped with the outlet duct.

As the improvement, the piston and the sleeve are in interference fit, so that the air tightness of the whole air exhaust structure can be ensured.

As an improvement, the sleeve is a split type pipe fitting.

Compared with the prior art, the utility model the advantage lie in: can satisfy empty gas detection's soil air sampling condition, but the sampling volume accurate control, the sampling instrument is simple portable, can avoid polluting the testing sample among the sampling process, furthest's assurance testing result's reliability.

Drawings

Fig. 1 is a schematic structural diagram of a novel air exhaust structure.

Fig. 2 is a schematic diagram of the internal structure of a novel air pumping structure.

As shown in the figure: 1. the sampling device comprises a sampling head, 2, a sleeve, 3, a connecting rod, 4, a piston, 5, a handle, 6, a bolt hole, 7, a bolt, 8, an air guide valve, 9, a filtering interlayer, 10, an air inlet, 11, a sealing spiral cap, 12 and an air outlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses when concrete implementation, a novel structure of bleeding, including sampling head 1, install sleeve pipe 2 on the sampling head 1, the inside connecting rod 3 that is equipped with of sleeve pipe 2, 3 tip of connecting rod are equipped with piston 4, the one end that piston 4 was kept away from to connecting rod 3 is equipped with handle 5, be equipped with bolt hole 6 and bolt 7 on the connecting rod 3, sleeve pipe 2 is close to the inside bleed valve 8 that is equipped with of one end of sampling head 1, be equipped with between bleed valve 8 and the sleeve pipe 2 and filter the intermediate layer 9, sleeve pipe 2 is equipped with air inlet 10 with the array of filter the intermediate layer 9 combination department, the one end that sampling head 1 was kept away from to sleeve pipe 2 is equipped with sealed spiral cap 11, sealed spiral cap 11 bottom is equipped with outlet duct 12.

As an improvement, the piston 4 and the sleeve 2 are in interference fit, so that the air tightness of the whole air exhaust structure can be ensured.

As an improvement, the sleeve 2 is a split type pipe fitting, and the split pieces are in sealing connection by adopting threads and gaskets.

The utility model discloses a theory of operation: the adoption has the structure of very high gas tightness to realize, inserts the sampling head and treats the soil of sampling in, the pulling connecting rod, the intraductal negative pressure that forms of cover, and the air in the soil passes through the air inlet and gets into, and the soil piece that drives is filtered the intermediate layer and is filtered, and the air admission air guide valve of collection to collect bolt and bolt hole in getting into the sleeve pipe and be used for fixed link position, control air extraction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply 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.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 present invention. 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.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the invention, and that those skilled in the art may make variations, modifications, substitutions and alterations herein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a novel air exhaust structure, includes sampling head (1), its characterized in that: install sleeve pipe (2) on sampling head (1), inside connecting rod (3) of being equipped with of sleeve pipe (2), connecting rod (3) tip is equipped with piston (4), the one end that piston (4) were kept away from in connecting rod (3) is equipped with handle (5), be equipped with bolt hole (6) and bolt (7) on connecting rod (3), sleeve pipe (2) are close to inside aeration valve (8) that is equipped with of one end of sampling head (1), be equipped with between aeration valve (8) and sleeve pipe (2) and filter intermediate layer (9), sleeve pipe (2) and filter intermediate layer (9) combination department array are equipped with air inlet (10), the one end that sampling head (1) was kept away from in sleeve pipe (2) is equipped with sealed screw cap (11), sealed screw cap (11) bottom is equipped with outlet duct (12).

2. A novel gas evacuation structure as claimed in claim 1, wherein: the piston (4) and the sleeve (2) are in interference fit.

3. A novel air extraction structure according to claim 1, characterized in that: the sleeve (2) is a split type pipe fitting.