Automatic gas sampling and analyzing device

Abstract

The invention relates to the technical field, in particular to an automatic gas sampling and analyzing device, and belongs to the technical field of gas detection.The automatic gas sampling and analyzing device comprises an analyzing assembly, the analyzing assembly comprises an analyzer body, a sample hole is formed in the middle of the upper end of the analyzer body, and a guide strip of a U-shaped structure is fixedly installed above the analyzer body; the sampling assembly is clamped between the guide strips, and the lower end of the sampling assembly is in threaded connection with the sample storage assembly, so that during use, the sampling assembly and the sample storage assembly can be independently used, the effect of independently sampling and storing external gas is achieved, and after sampling is completed, the gas in the sample storage assembly is analyzed through the analysis assembly; the analysis assembly, the sampling assembly and the sample storage assembly can be combined for use for automatic analysis, and during use, the sampling assembly is convenient for discharging residual gas in the pipeline through the exhaust pipe, so that the influence of the residual gas on an analysis result is avoided, and the analysis accuracy is improved.

Description

Technical Field

[0001] The invention relates to a gas analysis device, in particular to an automatic gas sampling and analysis device, belonging to the technical field of gas detection. Background Art

[0002] The automatic gas sampling and analysis device is a device that integrates sampling and analysis functions. It can automatically extract gas samples from the environment, analyze them, and provide accurate data support. It is widely used in some chemical companies or environmental testing units.

[0003] For example, a Chinese invention patent with the announcement number CN111721895A discloses an automatic gas sampling and analysis device, which includes an analysis cabinet and an external analysis tube. A liquid argon tank truck is arranged in front of the analysis cabinet on the right, and a liquid argon storage tank is arranged on the liquid argon tank truck. The liquid argon storage tank is connected to a filling pipeline, and a gas pressure reducing valve and a pressure transmitter are arranged on the filling pipeline. A tank truck analysis tube is arranged on the filling pipeline, and a first electromagnetic valve is arranged on the tank truck analysis tube. The automatic gas sampling and analysis device adopts a fully automatic online trace nitrogen analyzer and a trace oxygen analyzer. The external analysis tube is divided into two paths through a first analysis branch pipe and a second analysis branch pipe, one path enters the trace nitrogen analyzer, and the other path enters the trace oxygen analyzer. The switch control of the pipeline is performed by controlling the electromagnetic valve to ensure the safe operation of the filling site. The analyzer is placed next to the on-site liquid argon tank truck scale, so that the liquid argon tank truck can be analyzed without additional movement after it is driven onto the scale, thereby shortening the analysis time of the liquid argon tank truck.

[0004] Another example is a gas automatic sampling and analysis device disclosed in a Chinese patent with announcement number CN217820203U, which belongs to the field of gas analysis technology. The device includes a gas sampling network, which is connected to an external gas source to obtain analytical gas samples; the gas sampling network is connected to a gas sampling pump through a flow path switching valve, the gas sampling pump is connected to a ten-way valve, a six-way valve is connected in series after the ten-way valve, the ten-way valve is connected to a gas quantitative ring and a separation column through different hole positions, the six-way valve is connected to a gas detection device, two carrier gases are connected to the corresponding hole positions of the ten-way valve and the six-way valve respectively, and the ten-way valve and the six-way valve are switched by a microcomputer processing system, so that the gas sample passes through different flow paths, realizing automatic quantitative sampling, separation of interfering components and gas concentration detection. The device provided by the utility model can accurately and efficiently perform laboratory analysis of sampled gas, and effectively reduce errors caused by human factors.

[0005] However, when in use, it is inconvenient to operate, and it is not convenient to perform separation operations during sampling and analysis operations. It is inconvenient to use, and when in use, the residual gas inside the sampling device or the residual gas inside the sampling pipeline is likely to cause errors in the analysis results, affecting the accuracy of the detection and analysis, and is inconvenient to use.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a gas automatic sampling and analysis device in order to solve the above-mentioned problems. The device is easy to operate and is convenient for separate sampling and analysis operations. It can also perform automatic sampling and analysis operations simultaneously. When performing analysis, it is convenient to discharge the gas inside the pipeline, thereby improving the accuracy of the analysis.

[0008] The present invention achieves the above-mentioned purpose through the following technical scheme: a gas automatic sampling and analysis device, comprising an analysis component, the analysis component comprising an analyzer body, and a sample hole is opened in the middle position of the upper end of the analyzer body, a U-shaped guide bar is fixedly installed above the analyzer body and located on the outside of the sample hole, a sampling component is clamped between the guide bars, and a sample storage component is threadedly connected at the lower end of the sampling component, the sample storage component is inserted into the interior of the sample hole, and the sample storage component is connected to the analyzer body. When using it, according to needs, it is selected whether to use the sampling component and the sample storage component separately for sampling operation, or to assemble the analysis component, the sampling component and the sample storage component into a whole for automatic sampling and analysis. When sampling separately, by installing the sample storage component on the sampling component, then The gas to be analyzed is drawn into the sample storage component through the sampling component, and then the sampling component is separated from the sample storage component so that the sample is stored inside the sample storage component. When analysis is required, the sample storage component is plugged into the sample hole of the analysis component so that the sample storage component is communicated with the analyzer body, and the analyzer body is used to detect and analyze the sample, which is convenient for separate use. When combined use is required, the sample storage component is connected to the sampling component, and the sample storage component is plugged into the sample hole so that the sample storage component is communicated with the analyzer body, and then the sample is sampled through the sampling component so that the sample gas enters the sample storage component and enters the analyzer body through the sample storage component, which is convenient for automatic analysis operations and easy to use.

[0009] Furthermore, a touch control panel is fixedly installed on one side of the analyzer body, and an electric telescopic rod is fixedly installed on the upper end of the analyzer body on the guide bar, and a push-pull plate is fixedly installed between the electric telescopic rods on both sides, and a card slot is opened on one side of the push-pull plate, and the upper end of the card slot penetrates the outside, one end of the sampling component is clamped in the inside of the card slot, and a sampling needle is fixedly installed in the middle position of the inside of the sample hole, and one end of the sampling needle is inserted into the inside of the sample storage component. When in use, the sampling needle is used to facilitate the analyzer body to collect the gas inside the sample storage component, and the push-pull plate is driven to move by the electric telescopic rod, so as to facilitate the movement of the sampling component, so that the electric telescopic rod drives the sampling component, and the guide bar is used to limit the sampling component and facilitate up and down movement. When pressed down, the sampling needle is inserted into the inside of the sample storage component for analysis.

[0010] Furthermore, the sampling assembly includes a sampling cylinder, and a rubber piston column is inserted into the interior of the sampling cylinder, a pull rod is fixedly installed at one end of the rubber piston column, a pull tab is fixedly installed at the other end of the pull rod, and the pull tab is clamped into the inside of the clamping slot on the push-pull plate. When in use, the pull tab is clamped with the push-pull plate, and when the push-pull plate moves, the rubber piston column is pulled to move inside the sampling cylinder, thereby facilitating air suction and exhaust.

[0011] Furthermore, fins are fixedly installed on both sides of the sampling cylinder, and the sampling cylinder is clamped with the guide strip through the fins, a handle is fixedly installed on one side of the upper end of the sampling cylinder, an exhaust pipe is fixedly installed on the upper end of the sampling cylinder on one side of the handle, a first one-way valve is fixedly installed on the upper end of the exhaust pipe, and an externally threaded tube is fixedly installed on the other side of the first one-way valve, a collecting air bag is threadedly connected to the externally threaded tube, a threaded cap is fixedly installed on one end of the collecting air bag, and the collecting air bag is threadedly connected to the externally threaded tube through the threaded cap. When in use, the fins are used to , the sampling cylinder is clamped on the guide bar to fix the sampling cylinder, and the sampling assembly is convenient to carry through the handle. When it is necessary to discharge the residual air inside before sampling, the stroke of the rubber piston column reaches one side of the exhaust pipe, and the rubber piston column is repeatedly pushed and pulled, so that the residual gas enters the interior of the collecting air bag through the first one-way valve, which not only discharges the residual gas, but also avoids direct discharge into the air to cause environmental pollution, and is easy to use. The threaded cap makes it easy to disassemble and install the collecting air bag, which is convenient for operation.

[0012] Furthermore, a connector is fixedly installed on one side of the lower end of the sampling tube, and a first threaded groove is fixedly installed on the inner lower end of the connector, the connector is communicated with the interior of the sampling tube, and the connector is threadedly connected to the sample storage component through the first threaded groove, and the sampling component and the sample storage component are conveniently connected through the connector and the first threaded groove, and when the residual air is discharged, the rubber piston column blocks the connector to prevent gas from entering the interior of the sample storage component.

[0013] Furthermore, a second one-way valve is fixedly installed on one end of the sampling barrel, a sampling tube is fixedly installed on one side of the second one-way valve, and the sampling tube is connected to the interior of the sampling barrel through the second one-way valve, and a sampling head is fixedly installed on the other end of the sampling tube. The sampling head can be replaced with different shapes according to usage requirements, such as a needle-type sampling head, a tube-type sampling head or a nut-type sampling connector, which is convenient for connection with external equipment and sampling. When sampling, the second one-way valve is used to avoid backflow of the sample, thereby improving the stability of sampling.

[0014] Furthermore, the sample storage component includes a negative pressure sample storage bottle, a venting ring is fixedly installed at the lower end of the negative pressure sample storage bottle, and a rubber stopper is fixedly installed inside the venting ring, one end of the sampling needle penetrates the rubber stopper and enters the interior of the negative pressure sample storage bottle. When performing analysis, the sample storage component is pressed downward to facilitate the sampling needle to penetrate into the interior of the negative pressure sample storage bottle to analyze and detect the gas in the negative pressure sample storage bottle.

[0015] Furthermore, an air inlet pipe is fixedly installed on the upper end of the negative pressure sample storage bottle, and the upper end of the air inlet pipe is a T-shaped structure, the upper end of the air inlet pipe is in a sealed state, and air inlet holes are evenly opened on the outer side of the upper end of the air inlet pipe, a sealing sleeve is threadedly connected to the air inlet pipe, and a sealing ring is fixedly installed on the inner upper end of the sealing sleeve, and the sealing ring seals the air inlet hole, and through the air inlet pipe and the air inlet hole, when the sampling component is not connected, the air inlet hole is sealed by the sealing ring on the sealing sleeve, and when the sampling component is connected, the sealing sleeve moves downward, so that the sealing ring releases the seal on the air inlet hole, so that the sampling component is connected to the sample storage component, and due to the negative pressure state inside the negative pressure sample storage bottle, it is convenient to draw the sample gas into the interior of the negative pressure sample storage bottle.

[0016] Furthermore, a second thread groove is provided at the outer lower end of the air inlet pipe, and a third thread groove is provided inside the sealing sleeve below the sealing ring, the second thread groove is threadedly connected to the third thread groove, a fourth thread groove is provided at the outer lower end of the sealing sleeve, the fourth thread groove is threadedly connected to the sampling assembly, and an L-shaped anti-slip ring is fixedly installed at the lower end of the sealing sleeve, the anti-slip ring covers the lower end of the sampling assembly, and the anti-slip ring is used to facilitate the restriction and rotation of the sealing sleeve. When installing the sampling assembly, the anti-slip ring is first used to limit the rotation of the sealing sleeve, so that the first thread groove on the connecting head is connected to the fourth thread groove. After the connection is completed, the limit on the sealing sleeve is released, and the negative pressure sample storage bottle is continuously rotated, so that the sealing sleeve descends along the second thread groove on the air inlet pipe through the third thread groove, so that the air inlet hole is exposed, thereby achieving the effect of connecting the sampling assembly with the sample storage assembly, improving the safety during use, and avoiding leakage.

[0017] The technical effects and advantages of the present invention are as follows: when in use, the sampling component and the sample storage component can be used separately to achieve the effect of separately sampling and storing external gas, and after the sampling is completed, the gas inside the sample storage component is analyzed by the analysis component. The analysis component, the sampling component and the sample storage component can also be used in combination to perform automatic analysis after the sampling is completed. When in use, the sampling component can discharge the residual gas in the pipeline into the interior of the collecting air bag through the exhaust pipe, thereby avoiding the residual gas from affecting the analysis results and improving the accuracy of the analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after removing the analysis component;

[0020] Figure 3 It is a schematic diagram of the structure of the analysis component of the present invention;

[0021] Figure 4 It is a structural schematic diagram of another angle of the analysis component in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the sampling assembly in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the sampling assembly of the present invention after partial cutaway;

[0024] Figure 7 It is a schematic diagram of the structure of the sample storage component after explosion in the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the sample storage component after explosion from another angle in the present invention.

[0026] In the figure: 1. analysis component; 101. analyzer body; 102. sample hole; 103. guide bar; 104. control panel; 105. electric telescopic rod; 106. push-pull plate; 107. card slot; 108. sampling needle; 2. sampling component; 201. sampling cylinder; 202. rubber piston column; 203. pull rod; 204. pull tab; 205. fin; 206. handle; 207. exhaust pipe; 208. first one-way valve; 209. external threaded pipe; 2010. gas collection bag; 2011, threaded cap; 2012, connector; 2013, first thread groove; 2014, second one-way valve; 2015, sampling tube; 2016, sampling head; 3, sample storage assembly; 301, negative pressure sample storage bottle; 302, venting ring; 303, rubber plug; 304, air inlet pipe; 305, air inlet hole; 306, sealing sleeve; 307, sealing ring; 308, second thread groove; 309, third thread groove; 3010, fourth thread groove; 3011, anti-slip ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 8As shown, a gas automatic sampling and analysis device includes an analysis component 1, which includes an analyzer body 101, and a sample hole 102 is opened in the middle position of the upper end of the analyzer body 101. A U-shaped guide bar 103 is fixedly installed above the analyzer body 101 and located on the outside of the sample hole 102. A sampling component 2 is clamped between the guide bars 103, and a sample storage component 3 is threadedly connected to the lower end of the sampling component 2. The sample storage component 3 is inserted into the inside of the sample hole 102, and the sample storage component 3 is connected to the analyzer body 101. When using it, according to the needs, it is selected whether to use the sampling component 2 and the sample storage component 3 separately for sampling operations, or to assemble the analysis component 1, the sampling component 2 and the sample storage component 3 into a whole for automatic sampling and analysis. When sampling separately, by installing the sample storage component 3 on the sampling component 2, then The gas to be analyzed is drawn into the sample storage component 3 through the sampling component 2, and then the sampling component 2 is separated from the sample storage component 3, so that the sample is stored inside the sample storage component 3. When analysis is required, the sample storage component 3 is inserted into the sample hole 102 of the analysis component 1, so that the sample storage component 3 is connected to the analyzer body 101, and the analyzer body 101 is used to detect and analyze the sample, which is convenient for separate use. When it is necessary to use them in combination, the sample storage component 3 is connected to the sampling component 2, and the sample storage component 3 is inserted into the sample hole 102, and the sample storage component 3 is connected to the analyzer body 101, and then the sample is sampled through the sampling component 2, so that the sample gas enters the interior of the sample storage component 3, and enters the interior of the analyzer body 101 through the sample storage component 3, which is convenient for automatic analysis operations and easy to use.

[0029] A touch control panel 104 is fixedly installed on one side of the analyzer body 101, and an electric telescopic rod 105 is fixedly installed on the upper end of the analyzer body 101 on the guide bar 103, and a push-pull plate 106 is fixedly installed between the electric telescopic rods 105 on both sides, and a card slot 107 is opened on one side of the push-pull plate 106. The upper end of the card slot 107 penetrates the outside, and one end of the sampling component 2 is clamped in the inside of the card slot 107. A sampling needle 108 is fixedly installed in the middle position of the sample hole 102, and one end of the sampling needle 108 is inserted into the sample hole 102. It is connected to the inside of the sample storage component 3. When in use, the sampling needle 108 is used to facilitate the analyzer body 101 to collect the gas inside the sample storage component 3, and the push-pull plate 106 is driven to move by the electric telescopic rod 105, which facilitates the movement of the sampling component 2, so that the electric telescopic rod 105 drives the sampling component 2, and through the guide bar 103, it is convenient to limit the sampling component 2 and move it up and down. When pressed down, the sampling needle 108 is inserted into the interior of the sample storage component 3 for analysis.

[0030] The sampling assembly 2 includes a sampling cylinder 201, and a rubber piston column 202 is inserted into the interior of the sampling cylinder 201, a pull rod 203 is fixedly installed at one end of the rubber piston column 202, and a pull tab 204 is fixedly installed at the other end of the pull rod 203, and the pull tab 204 is clamped in the slot 107 on the push-pull plate 106. When in use, the pull tab 204 is clamped with the push-pull plate 106, and then when the push-pull plate 106 moves, the rubber piston column 202 is pulled to move inside the sampling cylinder 201, which is convenient for pumping and exhausting. Fins 205 are fixedly installed on both sides of the sampling cylinder 201, and the sampling cylinder 201 The fin 205 is connected with the guide strip 103, and a handle 206 is fixedly installed on one side of the upper end of the sampling tube 201. An exhaust pipe 207 is fixedly installed on the upper end of the sampling tube 201 on one side of the handle 206. A first one-way valve 208 is fixedly installed on the upper end of the exhaust pipe 207, and an external threaded tube 209 is fixedly installed on the other side of the first one-way valve 208. A collecting air bag 2010 is threadedly connected to the external threaded tube 209, and a threaded cap 2011 is fixedly installed on one end of the collecting air bag 2010. The collecting air bag 2010 is threadedly connected to the external threaded tube 209 through the threaded cap 2011. When in use, the fin 205 is connected with the collecting air bag 2010 through the threaded cap 2011. The sampling tube 201 is clamped on the guide strip 103 to fix the sampling tube 201, and the sampling assembly 2 is convenient to carry through the handle 206. When it is necessary to discharge the residual air inside before sampling, the rubber piston column 202 is made to reach one side of the exhaust pipe 207, and the rubber piston column 202 is repeatedly pushed and pulled, so that the residual gas enters the interior of the collection air bag 2010 through the first one-way valve 208, which not only discharges the residual gas, but also avoids direct discharge into the air to cause environmental pollution, which is convenient for use, and the collection air bag 2 is convenient to be opened through the threaded cap 2011. 010 can be disassembled and installed for easy operation. A connector 2012 is fixedly installed on one side of the lower end of the sampling cylinder 201, and a first thread groove 2013 is fixedly installed on the inner lower end of the connector 2012. The connector 2012 is communicated with the interior of the sampling cylinder 201, and the connector 2012 is threadedly connected to the sample storage component 3 through the first thread groove 2013. The sampling component 2 and the sample storage component 3 can be easily connected through the connector 2012 and the first thread groove 2013, and when the residual air is discharged, the rubber piston column 202 blocks the connector 2012 to prevent gas from entering the interior of the sample storage component 3.

[0031] Furthermore, a second one-way valve 2014 is fixedly installed on one end of the sampling cylinder 201, a sampling tube 2015 is fixedly installed on one side of the second one-way valve 2014, and the sampling tube 2015 is connected to the interior of the sampling cylinder 201 through the second one-way valve 2014, and a sampling head 2016 is fixedly installed on the other end of the sampling tube 2015. The sampling head 2016 can be replaced with different shapes according to usage requirements, such as a needle-type sampling head, a tube-type sampling head or a nut-type sampling connector, so as to facilitate connection with external equipment and sampling. When sampling, the second one-way valve 2014 is used to avoid backflow of the sample, thereby improving the stability of sampling.

[0032] The sample storage component 3 includes a negative pressure sample storage bottle 301, a venting ring 302 is fixedly installed at the lower end of the negative pressure sample storage bottle 301, and a rubber stopper 303 is fixedly installed inside the venting ring 302, one end of the sampling needle 108 penetrates the rubber stopper 303 and enters the negative pressure sample storage bottle 301. When performing analysis, the sample storage component 3 is pressed downward to facilitate the sampling needle 108 to penetrate into the negative pressure sample storage bottle 301, and the gas in the negative pressure sample storage bottle 301 is analyzed and detected. An air inlet pipe 304 is fixedly installed at the upper end of the negative pressure sample storage bottle 301, and the upper end of the air inlet pipe 304 is a T-shaped structure, and the upper end of the air inlet pipe 304 is in a sealed state. The air inlet holes 305 are evenly arranged on the outer side of the upper end of the air inlet pipe 304, and a sealing sleeve 306 is threadedly connected to the air inlet pipe 304, and a sealing ring 307 is fixedly installed on the upper end of the inner part of the sealing sleeve 306, and the sealing ring 307 seals the air inlet hole 305. Through the air inlet pipe 304 and the air inlet hole 305, when the sampling component 2 is not connected, the air inlet hole 305 is sealed by the sealing ring 307 on the sealing sleeve 306. When the sampling component 2 is connected, the sealing sleeve 306 moves downward, so that the sealing ring 307 releases the seal on the air inlet hole 305, so that the sampling component 2 is connected to the sample storage component 3, and due to the negative pressure inside the sample storage bottle 301 The negative pressure state is formed, so that the sample gas is easily drawn into the negative pressure sample storage bottle 301. The lower end of the outer part of the air inlet pipe 304 is provided with a second thread groove 308, and the inner part of the sealing sleeve 306 is provided with a third thread groove 309 below the sealing ring 307. The second thread groove 308 is threadedly connected with the third thread groove 309. The lower end of the outer part of the sealing sleeve 306 is provided with a fourth thread groove 3010, and the fourth thread groove 3010 is threadedly connected with the sampling component 2. The lower end of the sealing sleeve 306 is fixedly installed with an L-shaped anti-skid ring 3011, which covers the lower end of the sampling component 2. 1, it is convenient to limit and rotate the sealing sleeve 306. When installing the sampling component 2, first use the anti-slip ring 3011 to limit the rotation of the sealing sleeve 306, so that the first thread groove 2013 on the connecting head 2012 is connected with the fourth thread groove 3010. After the connection is completed, release the limit on the sealing sleeve 306, continue to rotate the negative pressure sample storage bottle 301, so that the sealing sleeve 306 passes through the third thread groove 309 and descends along the second thread groove 308 on the air inlet pipe 304, so that the air inlet hole 305 is exposed, so as to achieve the effect of connecting the sampling component 2 with the sample storage component 3, improve the safety during use, and avoid leakage.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gas automatic sampling and analysis device, characterized in that: The invention comprises an analysis component (1), wherein the analysis component (1) comprises an analyzer body (101), and a sample hole (102) is provided at the middle position of the upper end of the analyzer body (101); a guide bar (103) with a U-shaped structure is fixedly installed above the analyzer body (101) and located outside the sample hole (102); a sampling component (2) is clamped between the guide bars (103); a sample storage component (3) is threadedly connected to the lower end of the sampling component (2); the sample storage component (3) is inserted into the interior of the sample hole (102), and the sample storage component (3) is connected to the analyzer body (101).

2. The automatic gas sampling and analysis device according to claim 1, characterized in that: A touch control panel (104) is fixedly installed on one side of the analyzer body (101), and an electric telescopic rod (105) is fixedly installed on the upper end of the analyzer body (101) on the guide bar (103), and a push-pull plate (106) is fixedly installed between the electric telescopic rods (105) on both sides, and a card slot (107) is opened on one side of the push-pull plate (106), and the upper end of the card slot (107) penetrates the outside, one end of the sampling component (2) is clamped inside the card slot (107), and a sampling needle (108) is fixedly installed in the middle position inside the sample hole (102), and one end of the sampling needle (108) is inserted into the inside of the sample storage component (3).

3. The automatic gas sampling and analysis device according to claim 2, characterized in that: The sampling assembly (2) comprises a sampling cylinder (201), and a rubber piston column (202) is inserted into the interior of the sampling cylinder (201), a pull rod (203) is fixedly installed at one end of the rubber piston column (202), a pull tab (204) is fixedly installed at the other end of the pull rod (203), and the pull tab (204) is clamped into the interior of the clamping slot (107) on the push-pull plate (106).

4. The automatic gas sampling and analysis device according to claim 3, characterized in that: Fins (205) are fixedly mounted on both sides of the sampling tube (201), and the sampling tube (201) is clamped with the guide strip (103) through the fins (205); a handle (206) is fixedly mounted on one side of the upper end of the sampling tube (201); an exhaust pipe (207) is fixedly mounted on the upper end of the sampling tube (201) and located on one side of the handle (206); a first one-way valve (208) is fixedly mounted on the upper end of the exhaust pipe (207); an externally threaded tube (209) is fixedly mounted on the other side of the first one-way valve (208); a collecting air bag (2010) is threadedly connected to the externally threaded tube (209); a threaded cap (2011) is fixedly mounted on one end of the collecting air bag (2010); the collecting air bag (2010) is threadedly connected to the externally threaded tube (209) through the threaded cap (2011).

5. The automatic gas sampling and analysis device according to claim 3, characterized in that: A connector (2012) is fixedly mounted on one side of the lower end of the sampling tube (201), and a first thread groove (2013) is fixedly mounted on the inner lower end of the connector (2012); the connector (2012) is connected to the interior of the sampling tube (201), and the connector (2012) is threadedly connected to the sample storage component (3) through the first thread groove (2013).

6. The automatic gas sampling and analysis device according to claim 3, characterized in that: A second one-way valve (2014) is fixedly mounted on one end of the sampling cylinder (201), a sampling tube (2015) is fixedly mounted on one side of the second one-way valve (2014), and the sampling tube (2015) is connected to the interior of the sampling cylinder (201) via the second one-way valve (2014), and a sampling head (2016) is fixedly mounted on the other end of the sampling tube (2015).

7. The automatic gas sampling and analysis device according to claim 2, characterized in that: The sample storage component (3) includes a negative pressure sample storage bottle (301), a venting ring (302) is fixedly installed at the lower end of the negative pressure sample storage bottle (301), and a rubber plug (303) is fixedly installed inside the venting ring (302), and one end of the sampling needle (108) penetrates the rubber plug (303) and enters the interior of the negative pressure sample storage bottle (301).

8. The automatic gas sampling and analysis device according to claim 7, characterized in that: An air inlet pipe (304) is fixedly installed on the upper end of the negative pressure sample storage bottle (301), and the upper end of the air inlet pipe (304) is a T-shaped structure. The upper end of the air inlet pipe (304) is in a sealed state, and air inlet holes (305) are evenly opened on the outer side of the upper end of the air inlet pipe (304). A sealing sleeve (306) is threadedly connected to the air inlet pipe (304), and a sealing ring (307) is fixedly installed on the inner upper end of the sealing sleeve (306), and the sealing ring (307) seals the air inlet hole (305).

9. The automatic gas sampling and analysis device according to claim 8, characterized in that: A second thread groove (308) is provided at the lower end of the outer portion of the air inlet pipe (304), and a third thread groove (309) is provided inside the sealing sleeve (306) below the sealing ring (307), the second thread groove (308) is threadedly connected to the third thread groove (309), a fourth thread groove (3010) is provided at the lower end of the outer portion of the sealing sleeve (306), the fourth thread groove (3010) is threadedly connected to the sampling component (2), and an anti-slip ring (3011) of an L-shaped structure is fixedly installed at the lower end of the sealing sleeve (306), and the anti-slip ring (3011) covers the lower end of the sampling component (2).

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