Detection device for isotope of gas discharged from soil

Abstract

The utility model discloses a soil emission gas isotope detection device in the technical field of soil detection equipment, which comprises a box body, a top cover is hinged to the rear of the top of the box body, a fixing mechanism is fixedly connected to the top of the front of the box body, and a connecting mechanism is fixedly connected to the top of the top cover. A nitrogen supplementing box is arranged on the right side of the box body, an exhaust pipe is arranged on the left side of the top of the front portion of the box body, a base is arranged in an inner cavity of the box body, a detector is arranged on the top of the base, a sealing ring is fixedly connected to the top of the inner cavity of the box body, and a sealing gasket is fixedly connected to the front portion of a top cover. The left side and the right side of the top of the top cover are fixedly connected with handles, an air bag is arranged on the top of the top cover, and the problems that when the base is taken out of the box body and stored in the box body every time, a plurality of sets of lock catches need to be opened and then the lock catches need to be fastened again, operation is tedious, and a large amount of time needs to be consumed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection equipment, in particular to a detection device for soil-emitted gas isotopes. Background Art

[0002] Soil respiration refers to the process of soil releasing carbon dioxide into the atmosphere. It is one of the most important processes in the carbon cycle of terrestrial ecosystems and also a manifestation of life activities in the soil. Accurately measuring its release amount is the key to evaluating biological processes in the ecosystem. By detecting soil respiration and related parameters of its carbon isotope, the responses of roots and soil microorganisms to climate change can be estimated. The soil CO2 flux and its 13C isotope abundance are affected by various complex physical and biological processes in time and space. Long-term, continuous, and accurate measurement of soil carbon flux is of great significance for the study of carbon flux in terrestrial ecosystems.

[0003] For example, a detection device for soil-emitted gas isotopes with the publication number of CN210572297U includes a controller, a base carrying soil, and a detector with a detection sensor. The detection device further includes a box body. The air outlet of the base and the detection sensor are both connected to the inner cavity of the box body. The inner cavity of the box body is connected with a pressure-regulating airbag, an air inlet pipe, and an exhaust pipe. The box body is connected to a nitrogen replenisher through the air inlet pipe and connected to the outside air through the exhaust pipe. A valve is arranged between the box body and the pressure-regulating airbag, and a one-way valve is arranged on the exhaust pipe. The operation of this detection device is not restricted by space, and effectively avoids the adverse effects of CO2 and pressure in the air on the detection results, realizing accurate measurement.

[0004] However, each time the base is taken out of the box body and stored in the box body, multiple sets of latches need to be opened and then re-latched, which is rather cumbersome and time-consuming. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a detection device for soil-emitted gas isotopes, which can solve the problem that each time the base is taken out of the box body and stored in the box body, multiple sets of latches need to be opened and then re-latched, which is rather cumbersome and time-consuming.

[0007] To solve the above technical problems, the present utility model provides a detection device for soil emission gas isotopes, adopting the following technical solutions: It includes a box body, the rear of the top of the box body is hinged with a top cover, the front top of the box body is fixedly connected with a fixing mechanism, the top of the top cover is fixedly connected with a connecting mechanism, a nitrogen replenishment tank is arranged on the right side of the box body, an exhaust pipe is arranged on the left side of the front top of the box body, a base is arranged in the inner cavity of the box body, and a detector is arranged on the top of the base.

[0008] Optionally, a sealing ring is fixedly connected to the top of the inner cavity of the box body, and a sealing pad is fixedly connected to the front of the top cover.

[0009] By adopting the above technical solution, the box body is sealed.

[0010] Optionally, handles are fixedly connected to both the left and right sides of the top of the top cover, an airbag is arranged on the top of the top cover, the airbag is located between the two groups of handles, and an airbag valve is arranged at the bottom of the airbag.

[0011] By adopting the above technical solution, the top cover is opened and closed.

[0012] Optionally, an inlet pipe is arranged on the left side of the nitrogen replenishment tank, and the left side of the inlet pipe is communicated with the box body.

[0013] By adopting the above technical solution, nitrogen is replenished.

[0014] Optionally, an exhaust pipe valve is arranged on the exhaust pipe.

[0015] By adopting the above technical solution, the gas in the box body is discharged.

[0016] Optionally, the fixing mechanism includes a fixing plate, a sliding rod groove is opened on the right side of the fixing plate, a fixing sliding rod is inserted into the sliding rod groove, a spring plate is fixedly connected to the left side of the fixing sliding rod, a spring groove adapted to the spring plate is opened in the fixing plate, the spring plate is slidably connected in the spring groove, a spring is fixedly connected to the left side of the spring plate, a fixing groove is opened on the top of the fixing plate, the right side of the spring groove is communicated with the fixing groove, a triangular plate is fixedly connected to the top right side of the spring plate, the triangular plate is located in the fixing groove, and the connecting mechanism is inserted into the fixing groove.

[0017] By adopting the above technical solution, the connecting mechanism is fixed.

[0018] Optionally, the connecting mechanism includes a connecting plate, a connecting rod adapted to the fixing groove is fixedly connected to the bottom of the connecting plate, a connecting hole is opened on the left side of the connecting rod, and the right side of the connecting hole penetrates through the connecting rod.

[0019] By adopting the above technical solution, the top cover is fixed.

[0020] In summary, the present utility model includes at least one of the following beneficial effects: By setting the fixing mechanism and the connecting mechanism to cooperate with each other, when taking out the base from the box body and storing the base in the box body, the operations of opening and closing the top cover are more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic cross-sectional structural diagram of the box body of the present utility model;

[0024] Figure 3 is a schematic cross-sectional structural diagram of the fixing mechanism and the connecting mechanism of the present utility model.

[0025] Description of the reference numerals: 1. Box body; 101. Sealing ring; 2. Top cover; 201. Sealing gasket; 202. Handle; 203. Airbag; 204. Airbag valve; 3. Fixing mechanism; 301. Fixed plate; 302. Slide bar groove; 303. Fixed slide bar; 304. Spring plate; 305. Spring groove; 306. Spring; 307. Triangular plate; 308. Fixed groove; 4. Connecting mechanism; 401. Connecting plate; 402. Connecting rod; 403. Connecting hole; 5. Nitrogen replenishment tank; 501. Inlet pipe; 6. Exhaust pipe; 601. Exhaust pipe valve; 7. Base; 8. Detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will further elaborate on the present utility model with reference to the Figures 1 - 3 accompanying drawings.

[0027] In Embodiment 1, referring to Figure 1 , in this embodiment, in order to solve the problem that every time the base is taken out of the box body and stored in the box body, it is necessary to open multiple sets of lock catches and then re-lock them, and the operation is relatively cumbersome and time-consuming. The present utility model discloses a detection device for soil emission gas isotopes, including a box body 1, a top cover 2 is hinged to the rear of the top of the box body 1, a fixing mechanism 3 is fixedly connected to the front top of the box body 1, a connecting mechanism 4 is fixedly connected to the top of the top cover 2, a nitrogen replenishment tank 5 is provided on the right side of the box body 1, an exhaust pipe 6 is provided on the left side of the front top of the box body 1, a base 7 is provided in the inner cavity of the box body 1, and a detector 8 is provided on the top of the base 7.

[0028] Based on the above features, the working principle of this embodiment is as follows: During operation, the base 7 containing soil and the detector 8 are respectively placed into the box body 1. The staff rotates the top cover 2 to cover the box body 1, and the connecting mechanism 4 is inserted into the fixing mechanism 3 to lock and fix the box body 1 and the top cover 2, so that the inner cavity of the box body 1 forms a closed space; the detector 2 is turned on, the exhaust pipe 6 is opened, and the nitrogen replenishment tank 5 is controlled to replenish nitrogen into the box body 1. The gas in the box body 1 is discharged through the exhaust pipe 6. When the detection sensor in the detector 8 detects that the concentration of CO2 is 0, it proves that there is no CO2 in the box body 1. Then, the exhaust pipe 6 and the nitrogen replenishment tank 5 are closed, and the nitrogen replenishment into the box body 1 is stopped.

[0029] Embodiment Two. Refer to Figures 2 - 3 , in this embodiment, in order to solve the problem that every time the base is taken out of the box body and stored in the box body, it is necessary to open multiple groups of locking buckles and then re-lock them, which is rather cumbersome and time-consuming. Based on the same concept as Embodiment One above, this detection device for soil emission gas isotopes further includes a sealing ring 101 fixedly connected to the top of the inner cavity of the box body 1, a sealing gasket 201 fixedly connected to the front of the top cover 2, handle 202 fixedly connected to both the left and right sides of the top of the top cover 2. There is an airbag 203 on the top of the top cover 2. The airbag 203 is located between the two handles 202. There is an airbag valve 204 at the bottom of the airbag 203. There is an inlet pipe 501 on the left side of the nitrogen replenishment tank 5. The left side of the inlet pipe 501 is connected to the box body 1. There is an exhaust pipe valve 601 on the exhaust pipe 6. The fixing mechanism 3 includes a fixing plate 301. There is a slide bar groove 302 opened on the right side of the fixing plate 301. A fixing slide bar 303 is inserted into the slide bar groove 302. A spring plate 304 is fixedly connected to the left side of the fixing slide bar 303. There is a spring groove 305 adapted to the spring plate 304 opened in the fixing plate 301. The spring plate 304 is slidably connected in the spring groove 305. A spring 306 is fixedly connected to the left side of the spring plate 304. There is a fixing groove 308 opened on the top of the fixing plate 301. The right side of the spring groove 305 is connected to the fixing groove 308. A triangular plate 307 is fixedly connected to the top right side of the spring plate 304. The triangular plate 307 is located in the fixing groove 308. The connecting mechanism 4 is inserted into the fixing groove 308. The connecting mechanism 4 includes a connecting plate 401. A connecting rod 402 adapted to the fixing groove 308 is fixedly connected to the bottom of the connecting plate 401. There is a connecting hole 403 opened on the left side of the connecting rod 402. The right side of the connecting hole 403 penetrates through the connecting rod 402.

[0030] Based on the above characteristics, the working principle of this embodiment is as follows: When the box body 1 needs to be sealed, rotate the top cover 2, insert the connecting rod 402 into the fixing groove 308, the connecting rod 402 pushes the triangular plate 307 to move leftward into the spring groove 305. At the same time, the triangular plate 307 drives the spring plate 304 to move leftward, and the spring plate 304 squeezes the spring 306. When the horizontal height of the triangular plate 307 is the same as that of the connecting hole 403, the spring plate 304 moves rightward under the elastic force of the spring 306. The spring plate 304 drives the triangular plate 307 to move rightward, and the triangular plate 307 moves into the connecting hole 403 to fix the connecting rod 402, and fix the top cover 2 on the box body 1. When the top cover 2 needs to be opened, push the fixed slide bar 303 leftward. The fixed slide bar 303 drives the spring plate 304 to move leftward. While the spring plate 304 squeezes the spring 306, it drives the triangular plate 307 to move leftward. The triangular plate 307 moves from the connecting hole 403 into the spring groove 305. Pull the top cover 2 upward. The top cover 2 drives the connecting plate 401 to move, and the connecting plate 401 drives the connecting rod 402 to move. The connecting rod 402 moves out of the fixing groove 308. Then release the fixed slide bar 303. The spring plate 304 moves rightward under the elastic force of the spring 306. The spring plate 304 drives the triangular plate 307 and the fixed slide bar 303 to move rightward and return to the original position.

[0031] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A detection device for soil emission gas isotopes, comprising a box body (1), characterized in that: A top cover (2) is hinged to the rear of the top of the box body (1). A fixing mechanism (3) is fixedly connected to the front top of the box body (1). A connecting mechanism (4) is fixedly connected to the top of the top cover (2). A nitrogen replenishing tank (5) is provided on the right side of the box body (1). An exhaust pipe (6) is provided on the left side of the front top of the box body (1). A base (7) is provided in the inner cavity of the box body (1). A detector (8) is provided on the top of the base (7).

2. The detection device for soil emission gas isotopes according to claim 1, wherein: A sealing ring (101) is fixedly connected to the top of the inner cavity of the box body (1). A gasket (201) is fixedly connected to the front of the top cover (2).

3. The detection device for soil emission gas isotopes according to claim 1, wherein: Handles (202) are fixedly connected to both the left and right sides of the top of the top cover (2). An airbag (203) is provided on the top of the top cover (2). The airbag (203) is located between the two handles (202). An airbag valve (204) is provided at the bottom of the airbag (203).

4. The detection device for soil-emitted gas isotopes according to claim 1, wherein: An inlet pipe (501) is provided on the left side of the nitrogen replenishing tank (5). The left side of the inlet pipe (501) is communicated with the box body (1).

5. The detection device for soil-emitted gas isotopes according to claim 1, characterized in that: An exhaust pipe valve (601) is provided on the exhaust pipe (6).

6. The detection device for soil-emitted gas isotopes according to claim 1, characterized in that: The fixing mechanism (3) includes a fixing plate (301). A slide bar groove (302) is formed on the right side of the fixing plate (301). A fixing slide bar (303) is inserted into the slide bar groove (302). A spring plate (304) is fixedly connected to the left side of the fixing slide bar (303). A spring groove (305) adapted to the spring plate (304) is formed in the fixing plate (301). The spring plate (304) is slidably connected in the spring groove (305). A spring (306) is fixedly connected to the left side of the spring plate (304). A fixing groove (308) is formed on the top of the fixing plate (301). The right side of the spring groove (305) is communicated with the fixing groove (308). A triangular plate (307) is fixedly connected to the top right side of the spring plate (304). The triangular plate (307) is located in the fixing groove (308). The connecting mechanism (4) is inserted into the fixing groove (308).

7. The detection device for soil-emitted gas isotopes according to claim 6, wherein: The connecting mechanism (4) includes a connecting plate (401). A connecting rod (402) adapted to the fixing groove (308) is fixedly connected to the bottom of the connecting plate (401). A connecting hole (403) is formed on the left side of the connecting rod (402). The right side of the connecting hole (403) penetrates through the connecting rod (402).

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