Pipe network greenhouse gas monitoring device capable of being hidden in inspection well

Abstract

The invention discloses a pipe network greenhouse gas monitoring device capable of being hidden in an inspection well, and belongs to the technical field of greenhouse gas monitoring, the pipe network greenhouse gas monitoring device comprises a shell, a wireless communication module is fixedly connected to the upper part of the interior of the shell, and a power supply module fixedly connected with the inner wall of the shell is arranged below the left side of the wireless communication module; a data processing module fixedly connected with the inner wall of the shell is arranged on the right side of the power supply module, a gas collection module used for gas collection and detection is fixedly connected to the bottom in the shell, a connecting mechanism is fixedly connected to the upper portion of the right side of the shell, and a high-definition monitor is fixedly connected to the right side of the connecting mechanism. The greenhouse gas monitoring device is convenient and fast to install and stable in connection with the well wall, the content of greenhouse gas in the well can be conveniently monitored for a long time, and the greenhouse gas monitoring efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of greenhouse gas monitoring technology, specifically to a pipeline greenhouse gas monitoring device that can be concealed in an inspection well. Background Technology

[0002] Greenhouse gases are gases in the atmosphere that absorb long-wave radiation reflected from the Earth's surface and then re-emit it, such as water vapor, carbon dioxide, and most refrigerants. Their effect is to warm the Earth's surface, similar to how a greenhouse traps solar radiation and heats the air inside. This warming effect of greenhouse gases is called the "greenhouse effect." Water vapor, carbon dioxide, nitrous oxide, Freon, and methane are the main greenhouse gases in the Earth's atmosphere.

[0003] Climate change and its impacts are multi-scale, comprehensive, and multi-layered, with both positive and negative effects, but the negative effects are of greater concern. Global warming has already affected the natural ecosystems of many regions, such as climate anomalies, rising sea levels, glacier retreat, permafrost thawing, delayed freezing and early melting of river (lake) ice, extended growing seasons in mid- and high-latitude regions, expansion of the distribution range of flora and fauna to polar and high-altitude areas, decline in the populations of some flora and fauna, and earlier flowering of some plants, etc.

[0004] Existing devices for detecting greenhouse gas emissions from pipeline networks have the following problems: 1. They are typically placed directly or temporarily fixed outside inspection wells, lacking adaptability for long-term installation. They need to be retrieved after each measurement, making continuous monitoring impossible. 2. These are non-portable detection devices, usually large in size, making them difficult to deploy flexibly in narrow inspection wells. They also require an external power supply, which most pipeline inspection wells lack. 3. Traditional wired connections or manual data acquisition pose risks of data transmission delays or loss. Real-time monitoring and remote data management are not possible. 4. Sampling ports are usually directly exposed to the air, making them susceptible to contamination from wastewater splashes or particulate matter. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a pipeline greenhouse gas monitoring device that can be concealed within an inspection well.

[0006] The technical solution of this invention is: a pipeline greenhouse gas monitoring device that can be hidden in an inspection well, comprising a housing, a wireless communication module fixedly connected to the upper part of the housing, a power supply module fixedly connected to the inner wall of the housing on the lower left side of the wireless communication module, a data processing module fixedly connected to the inner wall of the housing on the right side of the power supply module, a gas collection module for gas collection and detection fixedly connected to the bottom of the housing, a connecting mechanism fixedly connected to the upper right side of the housing, and a high-definition monitor fixedly connected to the right side of the connecting mechanism. The power supply module supplies power to the data processing module, the wireless communication module, the power supply module, the gas collection module, and the high-definition monitor. The data processing module is electrically connected to the wireless communication module, the power supply module, the gas collection module, and the high-definition monitor. The wireless communication module is wirelessly connected to a receiving end.

[0007] Furthermore, the power supply module includes a battery compartment, which has multiple battery slots inside. Each of the multiple battery slots has a battery block inserted into it. A protective panel is hinged to the top front side of the battery compartment, and the bottom of the protective panel is fixedly connected to the battery compartment by multiple screws.

[0008] Note: The power supply module supplies power to all electrical components of the device. The protective panel can be opened by removing the screws, and the battery pack can be easily replaced through the plug-in connection.

[0009] Furthermore, the data processing module includes a processor for calibrating, filtering, and calculating data; a temporary memory for storing the data processed by the processor; a long-term memory for storing data for a long period of time; and a data interface for transmitting data with the wireless communication module and the gas acquisition module.

[0010] Note: The processor is a commercially available ARM Cortex-M4 processor, the temporary memory is a static random access memory (SRAM), the long-term memory is a Flash memory, the wireless communication module is a commercially available NB-IoT module, specifically the Quectel BC66 model, and the data interface includes both ADC and I2C types.

[0011] Furthermore, the connecting mechanism includes a hinge seat, which is fixedly connected to the housing by a plurality of screws. A fixing bolt is threadedly connected to the right side of the hinge seat, and a connecting rod is rotatably connected to the fixing bolt. The right end of the connecting rod is fixedly connected to the high-definition monitor.

[0012] Note: The hinged base is hinged to the connecting rod. The angle of the high-definition monitoring is adjusted and fixed by fixing bolts.

[0013] Furthermore, the top of the housing is provided with a groove, and a portable handle is hinged in the groove.

[0014] Note: The portable handle facilitates carrying and transporting this device.

[0015] Furthermore, the left side of the housing is hinged with a snap-fit ​​rod for engaging with the well wall. The left end of the snap-fit ​​rod is fixedly connected to a snap-fit ​​connector, which includes a snap-fit ​​block. The snap-fit ​​block is hollow inside. The left end of the snap-fit ​​block has four hook grooves arranged in a cross shape. The left end of each hook groove is hinged with a barb. Each barb is engaged with an elastic spring between itself and a barb symmetrical about the central axis of the snap-fit ​​block.

[0016] Explanation: Insert the snap-fit ​​rod into the well wall. When the snap-fit ​​rod needs to be pulled out, the barb will snap into the well wall under the action of the elastic spring. The further the snap-fit ​​rod is pulled out, the tighter the snap-fit ​​joint will be into the well wall. This structure makes it more difficult for the snap-fit ​​rod to fall off the well wall.

[0017] Furthermore, a detachable bracket is fixedly connected to the top of the housing. The detachable bracket includes a connecting beam, which is fixedly connected to the top of the housing by multiple screws. The front and rear ends of the connecting beam are respectively connected to a transverse rod by multiple screws, and a support mechanism is fitted on the left and right ends of the transverse rod.

[0018] Note: The detachable bracket further enhances the stability of the connection between the housing and the well wall. When the clamping connector detaches from the well wall, the support mechanism further engages with the well wall to ensure that the device will not fall to the bottom of the well.

[0019] Furthermore, the support mechanism includes a connecting sleeve, which is threadedly connected to the transverse rod. An elastic rod is rotatably connected to the outer end of the connecting sleeve, and an arc-shaped block is fixedly connected to the outer end of the elastic rod. A rubber block is fixedly connected to the outer end of the arc-shaped block.

[0020] Explanation: By rotating the connecting sleeve, the elastic rod is compressed, increasing the pressure between the elastic rod and the well wall. The rubber block deforms and adheres more easily to the well wall, increasing the friction with the well wall. Even if the rubber block slips off the well wall, the elastic rod still has elasticity, causing the rubber block to re-adhere to the well wall.

[0021] Furthermore, the gas acquisition module includes an intake pipe, an intake pump is fixedly connected to the middle of the intake pipe, a filter ring is threadedly connected to the inlet of the intake pipe, multiple layers of filter cloth are fixedly connected to the middle of the filter ring, a sensor assembly is fixedly connected to the rear end of the intake pipe, and an exhaust pipe is connected to the lower end of the sensor assembly.

[0022] Note: The suction pump draws gas in through the suction pipe, and the multi-layered filter cloth filters out water mist and dust from the gas, improving the service life of the gas collection module.

[0023] Furthermore, the sensor assembly includes a protective housing, within which a CH4 gas sensor, an N2O gas sensor, and a CO2 gas sensor are fixedly connected. The air inlets of the CH4 gas sensor, N2O gas sensor, and CO2 gas sensor are all connected to air inlet pipes, and multiple air inlet pipes are all connected to the suction pipe. The air outlets of the CH4 gas sensor, N2O gas sensor, and CO2 gas sensor are all connected to air outlet pipes, and multiple air outlet pipes are all connected to the exhaust pipe.

[0024] Note: CH4, N2O, and CO2 gas sensors are used to detect the presence of CH4 in greenhouse gases. 4、 The N2O and CO2 gas contents are monitored. The CH4 gas sensor, N2O gas sensor, and CO2 gas sensor are respectively the SGA-700-CH4, SGA-700-N2O, and SGA-700-CO2 greenhouse gas methane gas sensor module products of Shenzhen Shenguoan Electronics Technology Co., Ltd.

[0025] Furthermore, the receiving end is one or more of a computer or a mobile phone.

[0026] Note: The receiving end can view the data via computer software or mobile phone software, making data viewing convenient.

[0027] The beneficial effects of this invention are:

[0028] (1) The present invention has a portable handle on the top of the shell to facilitate quick manual extraction and deployment of equipment, enhance lifting comfort, and reduce installation and maintenance time. When installing the present invention, holes are first drilled in the well wall, and after drilling, the clamping rod is inserted into the hole and then further fixed by the detachable bracket. The equipment is not easy to fall during installation, and it is suitable for installation by a single person in a narrow well, which improves the efficiency of equipment deployment. The two fixing methods can greatly reduce the probability of the equipment falling.

[0029] (2) This invention detects the content of various greenhouse gases in the gas through a gas acquisition module, processes the data through a data processing module, and then transmits the data to the receiving end via wireless signal. This results in high monitoring efficiency and convenient data viewing.

[0030] (3) The present invention provides power by periodically replacing battery blocks, which saves the construction cost of laying wires and is more convenient to use in environments where it is not convenient to lay wires.

[0031] (4) The present invention replaces the air filter ring every time the battery is replaced, thereby improving the air filtration efficiency of the air filter ring and keeping the air intake tube clean, thus improving the service life of the gas collection module. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention.

[0033] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0034] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0035] Figure 4 This is a top view of the connection relationship between the shell and the well wall of the present invention.

[0036] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0037] Figure 6 This is a left view showing the connection between the gas acquisition module and the housing of the present invention.

[0038] Among them, 1-shell, 2-wireless communication module, 3-power supply module, 4-data processing module, 5-gas collection module, 6-connection mechanism, 7-high-definition monitoring, 8-receiver, 31-battery compartment, 32-battery slot, 33-battery block, 34-protection panel, 35-screw one, 41-processor, 42-temporary storage, 43-long-term storage, 44-data interface, 61-hinge seat, 611-screw two, 62-fixing bolt, 63-connecting rod, 11-groove, 12-portable handle, 13-clamping rod, 14-clamping connector, 141-clamping block, 142-four 143-Barb, 144-Elastic Spring, 9-Removable Bracket, 91-Connecting Beam, 911-Screw Three, 921-Screw Four, 93-Support Mechanism, 931-Connecting Sleeve, 932-Elastic Rod, 933-Arc Block, 934-Rubber Block, 51-Intake Pipe, 52-Intake Pump, 511-Filter Ring, 512-Multi-layer Filter Cloth, 53-Sensor Assembly, 54-Exhaust Pipe, 531-Protective Shell, 532-CH4 Gas Sensor, 533-N2O Gas Sensor, 534-CO2 Gas Sensor, 535-Intake Pipe, 536-Outtake Pipe. Detailed Implementation

[0039] Example 1:

[0040] like Figure 1As shown, a pipeline greenhouse gas monitoring device that can be hidden in an inspection well includes a housing 1. A wireless communication module 2 is fixedly connected to the upper part of the housing 1. A power supply module 3 is fixedly connected to the inner wall of the housing 1 on the lower left side of the wireless communication module 2. A data processing module 4 is fixedly connected to the inner wall of the housing 1 on the right side of the power supply module 3. A gas collection module 5 for gas collection and detection is fixedly connected to the bottom inside the housing 1. A connection mechanism 6 is fixedly connected to the upper right side of the housing 1. A high-definition monitoring 7 is fixedly connected to the right side of the connection mechanism 6. The power supply module 3 supplies power to the data processing module 4, the wireless communication module 2, the power supply module 3, the gas collection module 5, and the high-definition monitoring 7. The data processing module 4 is electrically connected to the wireless communication module 2, the power supply module 3, the gas collection module 5, and the high-definition monitoring 7. The wireless communication module 2 is wirelessly connected to a receiving end 8.

[0041] like Figure 2 As shown, the power supply module 3 includes a battery compartment 31, which has multiple battery slots 32 inside. Each battery slot 32 has a battery block 33 inserted into it. A protective panel 34 is hinged to the top front side of the battery compartment 31. The bottom of the protective panel 34 is fixedly connected to the battery compartment 31 by multiple screws 35.

[0042] The power supply module 3 supplies power to the electrical components of the entire device. The protective panel 34 can be opened by removing screw 35, and the battery pack 33 can be easily replaced by a plug-in connection.

[0043] The data processing module 4 includes a processor 41 for calibrating, filtering and calculating data, a temporary memory 42 for storing data processed by the processor 41, a long-term memory 43 for storing data for a long time, and a data interface 44 for transmitting data with the wireless communication module 2 and the gas acquisition module 5.

[0044] The processor 41 uses a commercially available ARM Cortex-M4 processor, the temporary memory 42 uses static random access memory (SRAM), the long-term memory 43 uses flash memory, the wireless communication module 2 uses a commercially available NB-IoT module, specifically the Quectel BC66 model, and the data interface 44 includes both ADC and I2C types.

[0045] like Figure 3 As shown, the connecting mechanism 6 includes a hinge seat 61, which is fixedly connected to the housing 1 by a plurality of screws 611. A fixing bolt 62 is threadedly connected to the right side of the hinge seat 61, and a connecting rod 63 is rotatably connected to the fixing bolt 62. The right end of the connecting rod 63 is fixedly connected to the high-definition monitoring 7.

[0046] The hinge seat 61 is hinged to the connecting rod 63 to adjust the angle of the high-definition monitoring 7, and the angle is fixed by the fixing bolt 62.

[0047] like Figure 6 As shown, the gas acquisition module 5 includes an intake pipe 51, an intake pump 52 is fixedly connected to the middle of the intake pipe 51, a filter ring 511 is threadedly connected to the inlet of the intake pipe 51, a multi-layer filter cloth 512 is fixedly connected to the middle of the filter ring 511, a sensor assembly 53 is fixedly connected to the rear end of the intake pipe 51, and an exhaust pipe 54 is connected to the lower end of the sensor assembly 53.

[0048] The suction pump 52 draws gas in through the suction pipe 51, and the multi-layer filter cloth 512 can filter water mist and dust in the gas, thus improving the service life of the gas collection module 5.

[0049] The sensor assembly 53 includes a protective housing 531, within which a CH4 gas sensor 532, an N2O gas sensor 533, and a CO2 gas sensor 534 are fixedly connected. The air inlets of the CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 are all connected to air inlet pipes 535, and multiple air inlet pipes 535 are all connected to a suction pipe 51. The air outlets of the CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 are all connected to air outlet pipes 536, and multiple air outlet pipes 536 are all connected to an exhaust pipe 54.

[0050] CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 were used to detect CH4 gas in greenhouse gases, respectively. 4、 The N2O and CO2 gas contents are monitored. The CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 adopt the greenhouse gas methane gas sensor module products SGA-700-CH4, SGA-700-N2O, and SGA-700-CO2 from Shenzhen Shenguoan Electronics Technology Co., Ltd.

[0051] The receiver 8 can be one or more of a computer or a mobile phone.

[0052] The receiver 8 can view data via computer software or mobile phone software, making data viewing convenient.

[0053] Example 2:

[0054] The difference between this embodiment and embodiment 1 is that the top of the housing 1 in this embodiment is provided with a groove 11, and a portable handle 12 is hinged in the groove 11.

[0055] Compared to Embodiment 1, Embodiment 2 uses a portable handle 12 to facilitate the carrying and transportation of this device.

[0056] Example 3:

[0057] The difference between this embodiment and embodiment 2 is that, in this embodiment, as Figure 4 , Figure 5 As shown, a snap-fit ​​rod 13 for snapping with the well wall is hinged to the left side of the housing 1. A snap-fit ​​connector 14 is fixedly connected to the left end of the snap-fit ​​rod 13. The snap-fit ​​connector 14 includes a snap-fit ​​block 141. The snap-fit ​​block 141 is hollow inside. Four hook grooves 142 are distributed in a cross shape on the left end of the snap-fit ​​block 141. A barb 143 is hinged to the left end of the hook groove 142. An elastic spring 144 is snapped between each barb 143 and its barb 143 symmetrical about the central axis of the snap-fit ​​block 141.

[0058] Compared to Embodiment 2, in this embodiment, the locking rod 13 is inserted into the well wall. When the locking rod 13 needs to be pulled out, the barb 143 will engage with the well wall under the action of the elastic spring 144. The further the locking rod 13 is pulled out, the tighter the locking head 14 engages with the well wall. This structure makes it more difficult for the locking rod 13 to fall off the well wall.

[0059] Example 4:

[0060] The difference between this embodiment and embodiment 3 is that in this embodiment, a detachable bracket 9 is fixedly connected to the top of the housing 1. The detachable bracket 9 includes a connecting beam 91. The connecting beam 91 is fixedly connected to the top of the housing 1 by a plurality of screws 911. The front and rear ends of the connecting beam 91 are respectively connected to a transverse rod 92 by a plurality of screws 921. A support mechanism 93 is respectively fitted on the left and right ends of the transverse rod 92.

[0061] The support mechanism 93 includes a connecting sleeve 931, which is threadedly connected to a transverse rod 92. An elastic rod 932 is rotatably connected to the outer end of the connecting sleeve 931. An arc-shaped block 933 is fixedly connected to the outer end of the elastic rod 932. A rubber block 934 is fixedly connected to the outer end of the arc-shaped block 933.

[0062] Compared to Embodiment 3, this embodiment further enhances the stability of the connection between the housing 1 and the well wall through the detachable bracket 9. When the snap-fit ​​connector 14 detaches from the well wall, the support mechanism 93 further snaps it into place, ensuring that the device will not fall to the bottom of the well. By rotating the connecting sleeve 931, the elastic rod is compressed, increasing the pressure between the elastic rod 932 and the well wall. The rubber block 934 deforms and more easily adheres to the well wall, increasing the friction with the well wall. Even if the rubber block 934 slips off the well wall, the elastic rod 932 still has elasticity, causing the rubber block 934 to re-attach to the well wall.

[0063] The operating method of the pipeline greenhouse gas monitoring device that can be hidden in the inspection well in Embodiment 4 above includes the following steps:

[0064] S1. After drilling a hole in the well wall where the gas monitoring device needs to be installed, insert the snap-fit ​​rod 13 into the hole, then fix the connecting beam 91 to the top of the housing 1 with screw three 911, fix the transverse rod 92 to the connecting beam 91 with screw four 921, rotate the connecting sleeve 931 to adjust the elastic rod 932, so that the rubber block 934 abuts against the well wall.

[0065] S2. Air is drawn into the suction pipe 51 by the suction pump 52. The air in the suction pipe 51 enters the CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 through the air inlet pipe 535. The CH4 gas sensor 532, N2O gas sensor 533, and CO2 gas sensor 534 detect the CH4 gas. 4、 The N2O and CO2 gas contents are monitored, and the monitored data is transmitted to the data processing module 4 through the data interface 44. After the processor 41 processes the data, the data is transmitted to the wireless communication module 2, and then the wireless signal is transmitted to the receiving end 8 by the communication module 2.

[0066] The wireless communication module 2, battery block 33, processor 41, temporary memory 42, long-term memory 43, data interface 44, suction pump 52, CH4 gas sensor 532, N2O gas sensor 533, CO2 gas sensor 534, high-definition monitoring 7, and receiver 8 used in the above embodiments are all commercially available products. As long as they can achieve the functions of this invention, they are acceptable. Those skilled in the art can choose to use them based on common sense, and no special limitations are made here.

Claims

1. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well, characterized in that: The invention comprises a shell (1), wherein a wireless communication module (2) is fixedly connected to the upper part of the shell (1), a power supply module (3) fixedly connected to the inner wall of the shell (1) is provided at the lower left side of the wireless communication module (2), a data processing module (4) fixedly connected to the inner wall of the shell (1) is provided at the right side of the power supply module (3), a gas collection module (5) for gas collection and detection is fixedly connected to the bottom of the shell (1), a connecting mechanism (6) is fixedly connected to the upper right side of the shell (1), a high-definition monitoring system (7) is fixedly connected to the right side of the connecting mechanism (6), the power supply module (3) supplies power to the data processing module (4), the wireless communication module (2), the power supply module (3), the gas collection module (5), and the high-definition monitoring system (7), the data processing module (4) is electrically connected to the wireless communication module (2), the power supply module (3), the gas collection module (5), and the high-definition monitoring system (7), and the wireless communication module (2) is wirelessly connected to a receiving end (8).

2. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The power supply module (3) comprises a battery compartment (31), wherein a plurality of battery slots (32) are provided inside the battery compartment (31), wherein battery blocks (33) are inserted into the plurality of battery slots (32), and a protective panel (34) is hingedly connected to the top of the front side of the battery compartment (31), and the bottom of the protective panel (34) is fixedly connected to the battery compartment (31) by means of a plurality of screws (35).

3. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The data processing module (4) includes a processor (41) for calibrating, filtering and calculating data, a temporary memory (42) for storing data processed by the processor (41), a long-term memory (43) for long-term storage of data, and a data interface (44) for transmitting data with the wireless communication module (2) and the gas collection module (5).

4. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The connecting mechanism (6) comprises an articulated seat (61), wherein the articulated seat (61) is fixedly connected to the housing (1) via a plurality of screws (611), a fixing bolt (62) is threadedly connected to the right side of the articulated seat (61), a connecting rod (63) is rotatably connected to the fixing bolt (62), and the right end of the connecting rod (63) is fixedly connected to the high-definition monitor (7).

5. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The top of the housing (1) is provided with a groove (11), and a portable handle (12) is hinged in the groove (11).

6. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: A clamping rod (13) for clamping with a well wall is hingedly connected on the left side of the housing (1); a clamping joint (14) is fixedly connected to the left end of the clamping rod (13); the clamping joint (14) comprises a clamping block (141); the clamping block (141) is hollow inside; four hook grooves (142) are arranged in a cross shape on the left end of the clamping block (141); a barb (143) is hingedly connected to the left end of the hook groove (142); and an elastic spring (144) is clamped between each barb (143) and a barb (143) symmetrical with respect to the central axis of the clamping block (141).

7. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: A detachable bracket (9) is fixedly connected to the top of the shell (1), and the detachable bracket (9) comprises a connecting beam (91), and the connecting beam (91) is fixedly connected to the top of the shell (1) via a plurality of screws (911); the front and rear ends of the connecting beam (91) are respectively connected to a transverse rod (92) via a plurality of screws (921); and the left and right ends of the transverse rod (92) are respectively sleeved with a supporting mechanism (93).

8. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 7, characterized in that: The support mechanism (93) comprises a connecting sleeve (931), the connecting sleeve (931) being threadedly connected to the transverse rod (92), the outer end of the connecting sleeve (931) being rotatably connected to an elastic rod (932), the outer end of the elastic rod (932) being fixedly connected to an arc block (933), and the outer end of the arc block (933) being fixedly connected to a rubber block (934).

9. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The gas collection module (5) comprises an air intake pipe (51), the middle part of the air intake pipe (51) is fixedly connected to an air intake pump (52), the pipe mouth of the air intake pipe (51) is threadedly connected to an air filter ring (511), the middle part of the air filter ring (511) is fixedly connected to a multi-layer air filter cloth (512), the rear end of the air intake pipe (51) is fixedly connected to a sensor assembly (53), and the lower end of the sensor assembly (53) is connected to an exhaust pipe (54).

10. A greenhouse gas monitoring device for a pipe network that can be hidden in an inspection well as claimed in claim 1, characterized in that: The gas collection module (5) comprises an air intake pipe (51), the middle portion of which is fixedly connected to an air intake pump (52), the rear end of which is fixedly connected to a sensor assembly (53), and the lower end of which is connected to an exhaust pipe (54).

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