A gas sampling device for environmental monitoring

Abstract

The present invention discloses a gas sampling device for environmental monitoring, which relates to the field of gas sampling and detection technology, including a working frame, a fixed frame plate installed at the bottom of the working frame, an accident protection mechanism, the accident protection mechanism includes an installation ring groove, the upper and bottom ends of the outer periphery of the working frame are provided with installation ring grooves, and a collection mechanism, the collection mechanism includes a multi-head connecting pipe, a movable bottom frame and a fixed frame head, a multi-head connecting pipe is installed at the upper end of the inner cavity of the working frame, and a plurality of fixed frame heads are movably installed at the upper end of the inner cavity of the working frame. The present invention triggers the collection mechanism by starting a limit moving mechanism, and in the process of collecting and sampling gas outdoors, it can not only collect gas in different time periods and different positions through different storage ends, but also perform preliminary detection on the collected gas during the gas collection process, and transmit the detection results wirelessly, so that the staff can have a simple judgment and analysis.

Description

Technical Field

[0001] The invention relates to the technical field of gas sampling and detection, and in particular to a gas sampling device for environmental monitoring. Background Art

[0002] Environmental monitoring refers to determining environmental quality or pollution levels and their changing trends by measuring representative values ​​of factors that affect environmental quality. The main means of environmental monitoring include physical, chemical and biological means.

[0003] In the process of environmental monitoring, air sampling and testing is one of the essential steps. However, the existing gas detection equipment can only detect one gas at a time during the detection process. In the process of detection, gases from different locations need to be collected, so different storage devices need to be used for storage, and switching is required during the storage process. However, gas leakage is prone to occur during the switching process. Summary of the invention

[0004] The object of the present invention is to provide a gas sampling device for environmental monitoring to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: A gas sampling device for environmental monitoring, comprising a working frame, a fixed frame plate being installed at the bottom end of the working frame;

[0006] An accident protection mechanism, the accident protection mechanism includes a mounting ring groove, and the upper end and the bottom end of the outer periphery of the working frame are provided with mounting ring grooves;

[0007] The collecting mechanism comprises a multi-head connecting pipe, a movable bottom frame and a fixed frame head. The upper end of the inner cavity of the working frame is provided with a multi-head connecting pipe. A plurality of fixed frame heads are movably installed on the upper end of the inner cavity of the working frame. The bottom ends of the fixed frame heads are all provided with movable bottom frames.

[0008] A limit movement mechanism, the limit movement mechanism comprises a mounting slot and a mounting slide block, a plurality of mounting slots are provided around the inner cavity of the working frame, a mounting slide block is slidably mounted on the upper end of the inner cavity of the mounting slot, and one end of the mounting slide block away from the mounting slot is connected to one side of the movable bottom frame;

[0009] An abnormality monitoring mechanism, the abnormality monitoring mechanism includes a mounting frame head, the mounting frame head is arranged in the middle of the inner cavity of the working frame;

[0010] A fixed docking mechanism, the fixed docking mechanism comprising a docking frame head, and the docking frame head is installed at the bottom end of the fixed frame plate;

[0011] A gas detector is arranged at the upper middle end of the inner cavity of the working frame, the top end of the mounting frame head is connected to the bottom end of the gas detector, and connecting wires are arranged around the top end of the gas detector.

[0012] Preferably, the accident protection mechanism also includes a protection airbag and an intelligent control valve. The protection airbag is installed inside the mounting ring groove. The protection airbag has a circular ring structure when viewed from above. The interior of the protection airbag is in a negative pressure state. Intelligent control valves are installed at the upper and bottom ends of both sides of the inner cavity of the working frame. Connection openings are opened on both sides of the mounting ring groove and at both ends of the interior of the protection airbag at positions relative to the intelligent control valve.

[0013] Preferably, operating handles are installed on both sides of the working frame, the gas detector is equipped with a wireless controller inside, and the wireless controller is wirelessly connected to an external remote control center, the gas detector is externally sleeved with an installation airbag, and fixed frame plates are installed on both sides of the outside of the installation airbag, and the top of the fixed frame plate is connected to the bottom end of the multi-head connecting tube.

[0014] Preferably, the collection mechanism also includes a collection tube head, a folding cylinder, a connecting rope, a switching plugging plate, a sealing folding sleeve, an installation spring, a detection head, a movable plate, a starting top ball, a conveying groove and a touch switch. The bottom end of the fixed frame head is installed with a folding cylinder around it, the bottom end of the folding cylinder is connected to the top of the movable bottom frame, the top of the working frame is installed with a collection tube head, the bottom end of the multi-head connecting tube is provided with a movable groove, one side of the switching plugging plate is movably engaged in the movable groove, the middle part of the switching plugging plate close to the gas detector is provided with a conveying groove, movable plates are installed on both sides of the switching plugging plate, and sealing folding sleeves are installed around the side of the movable plate close to the multi-head connecting tube. The end of the sealing folding sleeve away from the movable plate is connected to the multi-head connecting tube, and a detection head is installed in the middle part of the inner cavity of the conveying groove away from the multi-head connecting tube. The end of the connecting wire away from the gas detector is connected to the detection head, and a plurality of mounting springs are installed at the upper end and the bottom end of the left side of the movable plate close to the connecting wire. The end of the mounting spring away from the movable plate is connected to the multi-head connecting tube, and a connecting rope is installed on the left side of the movable plate away from one end of the detection head. A starting top ball is installed on the bottom end of the right side of the movable plate close to one end of the detection head. A touch switch is installed on the side of the bottom end of the multi-head connecting tube close to the starting top ball, and the touch switch is electrically connected to the gas detector.

[0015] Preferably, the conveying channel has a rectangular structure when viewed from above, a conveying opening is provided at the top of the working frame at a position relative to the collection tube head, a mounting circular opening is provided at one side of the inner cavity of the conveying channel at a position relative to the detection head, connecting holes are provided at the top of the fixed frame head and the middle of the bottom of the movable bottom frame, a control valve head is installed at the bottom of the movable bottom frame at a position relative to the connecting hole, and retractable annular grooves are provided around the top of the movable bottom frame and around the bottom of the fixed frame head.

[0016] Preferably, the limit movement mechanism also includes a pulling spring, an installation slot, a limiting push rod, a limiting recess, a limiting spring, an installation magnetic plate and a small electromagnetic block. The bottom end of the installation slider is installed with a pulling spring in a stretched state, the bottom end of the pulling spring is connected to the bottom end of the inner cavity of the installation slide groove, the bottom end of the installation slider is provided with an installation slot, the inner cavity of the installation slot is movably provided with a limiting push rod, a limiting recess is provided at the middle and upper end of one side of the inner cavity of the installation slide groove, and the end of the limiting push rod away from the installation slot is engaged with the inner cavity of the limiting recess. The end of the limit push rod away from the mounting slot is installed with a mounting magnetic plate through the mounting slide groove, and a small electromagnetic block is installed in the middle of the side of the bottom end of the movable bottom frame close to the mounting magnetic plate. The small electromagnetic block is equipped with a remote control switch, and the remote control switch is wirelessly connected to the external remote control center. A circular groove is opened on the side of the mounting slot close to the limiting recess, and a limiting spring is installed inside the circular groove. A circular baffle is installed on the side of the limit push rod close to the circular groove, and the end of the limit spring away from the circular groove is connected to the circular baffle.

[0017] Preferably, the abnormal monitoring mechanism also includes a fixed spring, an annular guide ring, a mounting ball, a connecting conductive layer, a movable bottom plate, an adsorption guide plate, a limiting electromagnetic block and an arc-shaped magnetic plate. A fixed spring is installed at the top of the inner cavity of the mounting frame head, and a mounting ball is installed at the bottom of the fixed spring. The mounting frame head has a diamond structure, and an annular guide ring is installed in the middle of the inner cavity of the mounting frame head. A movable bottom plate is installed at the bottom of the mounting frame head, and an adsorption guide plate is installed at the top of the movable bottom plate. A limiting electromagnetic block is installed in the middle of the movable bottom plate, and the top of the limiting electromagnetic block is connected to the bottom of the adsorption guide plate. A connecting conductive layer is installed around the outside of the mounting ball, and the connecting conductive layer and the annular guide ring are electrically connected to the intelligent control valve respectively, and an arc-shaped magnetic plate is installed at the bottom of the inner cavity of the mounting ball.

[0018] Preferably, the fixed docking mechanism also includes an operating screw, a limiting needle plate and a retractable recess. Retractable recesses are provided on both sides of the inner cavity of the docking frame head. An installation screw hole is provided in the middle of the inner cavity of the retractable recess. The two operating screws are respectively movably installed in the installation screw holes on both sides, and limiting needle plates are installed on the opposite ends of the operating screws on both sides.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention triggers the collection mechanism by starting the limit movement mechanism, and in the process of outdoor gas collection and sampling, not only can different storage ends be used to collect gas in different time periods and different positions, but also the collected gas can be preliminarily detected during the gas collection process, and the detection results can be wirelessly transmitted, so that the staff can have a simple judgment and analysis, and in the process of sampling and detection, the airflow can also be made to impact contact with the detection end, and the detection end can be processed to avoid dirt on the detection end during use, resulting in errors in the data collected later, and finally causing misjudgment of the data, so as to avoid the situation that the gas cannot be collected in different time periods and different positions during gas collection, and the gas cannot be preliminarily detected during the collection process, and the staff needs to spend time to analyze and judge when performing the detection;

[0021] 2. The present invention also activates the accident protection mechanism through the abnormal monitoring mechanism, which will prevent the working frame from contacting and colliding with the ground, thereby increasing the protection capability of the working frame during use, and increasing the ability of the working frame to resist accidents during outdoor use, thereby increasing the service life of the frame during use, and avoiding damage to the working frame when an accident occurs during outdoor use, resulting in the inability to use it normally later and reducing its service life during later use. The present invention can also play a buffering role, increasing the protection capability of the internal components of the working frame, and avoiding the situation where the components are damaged due to vibration caused by excessive impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0023] Figure 2 A structural diagram of a cross-section of a working frame provided by an embodiment of the present invention;

[0024] Figure 3 A structural diagram of a cross-section of the bottom end of a multi-connecting pipe provided in an embodiment of the present invention;

[0025] Figure 4 A three-dimensional structural diagram of a switching base plate provided in an embodiment of the present invention;

[0026] Figure 5 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 6 A structural diagram of a horizontal mounting frame head provided in an embodiment of the present invention.

[0028] In the figure: 1. working frame; 2. accident protection mechanism; 201. protective airbag; 202. intelligent control valve; 203. mounting ring groove; 3. collection mechanism; 301. collection pipe head; 302. multi-head connecting pipe; 303. movable bottom frame; 304. folding cylinder; 305. fixed frame head; 306. connecting rope; 307. switching plug; 308. sealing folding sleeve; 309. mounting spring; 310. detection head; 311. movable plate; 312. starting top ball; 313. conveying slot; 314. touch switch; 4. limit movement mechanism; 401. pulling spring; 402. mounting slide slot; 403. mounting slide block; 404. mounting slot; 405 , limit push rod; 406, limit notch; 407, limit spring; 408, install magnetic plate; 409, small electromagnetic block; 5, connect wire; 6, abnormal monitoring mechanism; 601, install frame head; 602, fix spring; 603, annular guide ring; 604, install ball; 605, connect conductive layer; 606, movable bottom plate; 607, adsorption guide plate; 608, limit electromagnetic block; 609, arc magnetic plate; 7, fix docking mechanism; 701, docking frame head; 702, operating screw; 703, limit needle plate; 704, retractable notch; 8, operating handle; 9, install airbag; 10, gas detector; 11, fix frame plate; 12, fix frame plate. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-6 , the present invention provides a technical solution: a gas sampling device for environmental monitoring, comprising a working frame 1, a fixed frame plate 12 is installed at the bottom end of the working frame 1;

[0031] The accident protection mechanism 2 includes a mounting ring groove 203. The upper and lower ends of the outer periphery of the working frame 1 are provided with mounting ring grooves 203.

[0032] The collecting mechanism 3 includes a multi-head connecting pipe 302, a movable bottom frame 303 and a fixed frame head 305. The multi-head connecting pipe 302 is installed on the upper end of the inner cavity of the working frame 1. A plurality of fixed frame heads 305 are movably installed on the upper end of the inner cavity of the working frame 1. The bottom ends of the fixed frame heads 305 are all provided with movable bottom frames 303, and the top ends of the fixed frame heads 305 are all installed with suction check valves;

[0033] The limiting movement mechanism 4 includes a mounting slot 402 and a mounting slider 403. A plurality of mounting slots 402 are provided around the inner cavity of the working frame 1. A mounting slider 403 is slidably installed on the upper end of the inner cavity of the mounting slot 402. The end of the mounting slider 403 away from the mounting slot 402 is connected to one side of the movable bottom frame 303. A movable through slot is provided on one side of the inner cavity of the mounting slot 402 close to the movable bottom frame 303.

[0034] The abnormality monitoring mechanism 6 includes a mounting frame head 601, and the mounting frame head 601 is arranged in the middle of the inner cavity of the working frame 1;

[0035] A fixed docking mechanism 7, the fixed docking mechanism 7 includes a docking frame head 701, and a docking frame head 701 is installed at the bottom end of the fixed frame plate 12;

[0036] A gas detector 10 is arranged at the upper middle end of the inner cavity of the working frame 1 , the top of the mounting frame head 601 is connected to the bottom of the gas detector 10 , and connecting wires 5 are installed around the top of the gas detector 10 .

[0037] The accident protection mechanism 2 also includes a protection airbag 201 and an intelligent control valve 202. The protection airbag 201 is installed inside the mounting ring groove 203. The protection airbag 201 is a circular ring structure when viewed from above. The interior of the protection airbag 201 is in a negative pressure state. Intelligent control valves 202 are installed at the upper and bottom ends of both sides of the inner cavity of the working frame 1. Connection openings are opened on both sides of the mounting ring groove 203 and at both ends of the interior of the protection airbag 201 at positions relative to the intelligent control valve 202.

[0038] Operating handles 8 are installed on both sides of the working frame 1. A wireless controller is provided inside the gas detector 10, and the wireless controller is wirelessly connected to an external remote control center. An installation airbag 9 is installed on the outside of the gas detector 10. Fixed frame plates 11 are installed on both sides of the outside of the installation airbag 9. The top of the fixed frame plate 11 is connected to the bottom of the multi-head connecting pipe 302.

[0039] The specific implementation is as follows: by installing the airbag 9 and the fixed frame plate 11 in coordination, it is possible to increase the wrapping during installation and improve the protection during installation, thereby avoiding damage caused by contact and collision with external solid objects during vibration.

[0040] The collecting mechanism 3 also includes a collecting tube head 301, a folding cylinder 304, a connecting rope 306, a switching plugging plate 307, a sealing folding sleeve 308, an installation spring 309, a detection head 310, a movable plate 311, a starting top ball 312, a conveying groove 313 and a touch switch 314. The folding cylinder 304 is installed around the bottom end of the fixed frame head 305, and the bottom end of the folding cylinder 304 is connected to the top of the movable bottom frame 303. The collecting tube head 301 is installed on the top of the working frame 1. The bottom ends of the multi-head connecting tubes 302 are provided with movable grooves. One side of the switching plugging plate 307 is movably embedded in the movable groove. The middle part of the side of the switching plugging plate 307 close to the gas detector 10 is provided with a conveying groove 313. The switching plugging plate 307 is installed on both sides. The sealing folding sleeve 308 is installed around the side of the movable plate 311 close to the multi-head connecting tube 302. The sealing folding sleeve 308 is far away One end away from the movable plate 311 is connected to the multi-head connecting tube 302, and a detection head 310 is installed in the middle of the inner cavity of the conveying groove 313 away from the multi-head connecting tube 302. The end of the connecting wire 5 away from the gas detector 10 is connected to the detection head 310. A plurality of mounting springs 309 are installed at the upper end and the bottom end of the left side of the movable plate 311 close to the connecting wire 5. The end of the mounting spring 309 away from the movable plate 311 is connected to the multi-head connecting tube 302. A connecting rope 306 is installed on the left side of the movable plate 311 away from one end of the detection head 310, and a starting top ball 312 is installed at the bottom end of the right side of the movable plate 311 close to one end of the detection head 310. A touch switch 314 is installed on one side of the bottom end of the multi-head connecting tube 302 close to the starting top ball 312. The touch switch 314 is electrically connected to the gas detector 10, and the bottom end of the multi-head connecting tube 302 is connected to the top of the air intake check valve.

[0041] The specific implementation method is as follows: when the installation slider 403 moves downward, it drives the connecting rope 306 to move, and the connecting rope 306 pulls the switching plug 307 to move inside the multi-head connecting tube 302, so that the conveying slot 313 is moved to the inner cavity of the multi-head connecting tube 302, so that the bottom end of the multi-head connecting tube 302 is in a state of no obstruction. When the switching plug 307 moves, it drives the movable plate 311 to move, and squeezes the installation spring 309. Later, the installation spring 309 after squeezing drives the movable plate 311 and the switching plug 307 to reassemble. When the movable plate 311 moves, it drives the starter ball 312 to move, so that the starter ball 312 contacts the touch switch 314, and the gas detector 10 is started to avoid leakage during the mobile switching. When the movable bottom frame 303 moves downward quickly, the foldable tube 304 is stretched, so that negative pressure is generated inside the foldable tube 304, and the external gas is sucked out through the suction one-way valve, the multi-head connecting tube 302 and the collection tube head 301. The gas is sucked into the folding cylinder 304 for collection and storage. When the gas flows inside the multi-head connecting tube 302, the gas is brought into contact with the detection head 310 and a preliminary detection is performed on the gas through the gas detector 10. The data results after the detection are transmitted to the external remote control center. In the process of collecting and sampling the gas outdoors, not only can the gas of different time periods and different positions be collected through different storage ends, but also the collected gas can be preliminarily detected during the gas collection process, and the detection results can be wirelessly transmitted, so that the staff can have a simple judgment and analysis. In the process of sampling and detection, the airflow can also be brought into impact contact with the detection end, and the detection end is processed to avoid dirt on the detection end during use, resulting in errors in the data collected later, and finally leading to misjudgment of the data, to avoid the failure to collect gases in different time periods and different positions during gas collection, and the failure to perform preliminary detection of the gas during the collection process, and the staff also need to spend time on analysis and judgment when conducting the detection.

[0042] The conveying slot 313 is a rectangular structure when viewed from above. A conveying port is provided at the top of the working frame 1 at a position relative to the collecting tube head 301. A mounting round port is provided at one side of the inner cavity of the conveying slot 313 at a position relative to the detecting head 310. A connecting hole is provided at the top of the fixed frame head 305 and the middle of the bottom of the movable bottom frame 303. A control valve head is installed at the bottom of the movable bottom frame 303 at a position relative to the connecting hole. Retractable ring grooves are provided around the top of the movable bottom frame 303 and around the bottom of the fixed frame head 305. The folding cylinder 304 is made of synthetic rubber.

[0043] The specific implementation method is as follows: when collecting the folding cylinder 304, the gas is collected directly through the retractable ring groove. When the collected gas needs to be extracted, the control valve head is started to discharge the collected gas into the mobile storage device.

[0044] The limiting movement mechanism 4 also includes a pulling spring 401, an installation slot 404, a limiting push rod 405, a limiting recess 406, a limiting spring 407, an installation magnetic plate 408 and a small electromagnetic block 409. The bottom end of the installation slider 403 is installed with a pulling spring 401 in a stretched state, the bottom end of the pulling spring 401 is connected to the bottom end of the inner cavity of the installation slide groove 402, the bottom end of the installation slider 403 is provided with an installation slot 404, the inner cavity of the installation slot 404 is movably provided with a limiting push rod 405, a limiting recess 406 is provided at the middle and upper end of one side of the inner cavity of the installation slide groove 402, and the end of the limiting push rod 405 away from the installation slot 404 is connected to the limiting recess 40 6 inner cavity is embedded and docked, one end of the limiting push rod 405 away from the installation slot 404 passes through the installation slide groove 402 and is installed with a mounting magnetic plate 408, a small electromagnetic block 409 is installed in the middle of the side of the bottom end of the movable bottom frame 303 close to the mounting magnetic plate 408, and the small electromagnetic block 409 is equipped with a remote control switch, and the remote control switch is wirelessly connected to the external remote control center, a circular notch is opened on one side of the installation slot 404 close to the limiting notch 406, and a limiting spring 407 is installed inside the circular notch, and a circular baffle is installed on one side of the limiting push rod 405 close to the circular notch, and the end of the limiting spring 407 away from the circular notch is connected to the circular baffle;

[0045] The specific implementation method is as follows: when collecting gas, just start the small electromagnetic block 409 at the corresponding position to make the small electromagnetic block 409 generate magnetism, generate magnetic attraction with the mounting magnetic plate 408, drive the mounting magnetic plate 408 to move to the side of the small electromagnetic block 409, and drive the limiting push rod 405 to slide inside the mounting through groove 404, and squeeze the limiting spring 407, and separate the limiting push rod 405 from the limiting recess 406, then the mounting slide 403 loses its restraining force, and the pulling spring 401 in a stretched state drives the mounting slide 403 to slide to the bottom end of the inner cavity of the mounting slide groove 402, thereby driving the movable bottom frame 303 to slide downward, and by the coordinated use of the mounting slide 403 and the mounting slide groove 402, the stability and flexibility of the movable bottom frame 303 during sliding are increased.

[0046] The abnormal monitoring mechanism 6 also includes a fixed spring 602, an annular guide ring 603, a mounting ball 604, a connecting guide layer 605, a movable bottom plate 606, an adsorption guide plate 607, a limit electromagnetic block 608 and an arc-shaped magnetic plate 609. The top of the inner cavity of the mounting frame head 601 is equipped with a fixed spring 602, and the bottom of the fixed spring 602 is equipped with a mounting ball 604. The mounting frame head 601 has a diamond structure, and an annular guide ring 603 is installed in the middle of the inner cavity of the mounting frame head 601. A movable bottom plate 606 is installed at the bottom of the frame head 601, an adsorption guide plate 607 is installed at the top of the movable bottom plate 606, a limit electromagnetic block 608 is installed in the middle of the movable bottom plate 606, the top of the limit electromagnetic block 608 is connected to the bottom of the adsorption guide plate 607, a connecting conductive layer 605 is installed around the outside of the installation ball 604, the connecting conductive layer 605 and the annular guide ring 603 are electrically connected to the intelligent control valve 202 respectively, and an arc-shaped magnetic plate 609 is installed at the bottom of the inner cavity of the installation ball 604;

[0047] The specific implementation method is as follows: during the use of the working frame 1, the circuit of the limit electromagnetic block 608 is disconnected, so that the limit electromagnetic block 608 loses its magnetism, and the magnetic attraction between the limit electromagnetic block 608 and the arc-shaped magnetic plate 609 is disconnected, so that the installation ball 604 loses its restraint force. When an unexpected situation occurs during the use of the working frame 1 and it tilts or falls, the installation ball 604 is made to roll inside the installation frame head 601, and in the process of rolling, the installation ball 604 is made to roll to one side of the inner cavity of the installation frame head 601 and contact the annular guide ring 603, so that the connection conductive layer 605 outside the installation ball 604 is made to contact the annular guide ring 603, and then the intelligent control valve 202 is started, so that the protective airbag 201 in a negative pressure state is quickly filled with gas, and the protective airbag 201 will quickly generate The protective airbag 201 expands, and the range enclosed by the expanded airbag 201 is much larger than the range of the working frame 1. Before the working frame 1 contacts the ground, the expanded airbag 201 contacts and squeezes the ground, and the working frame 1 does not contact and collide with the ground. The protection capability of the working frame 1 during use is increased, and the ability of the working frame 1 to resist accidents during outdoor use is increased, and the lifespan of the working frame 1 is improved. When an accident occurs during outdoor use, damage to the working frame 1 is avoided, resulting in inability to use it normally later and reducing the lifespan of the later use. The protective capability of the internal components of the working frame 1 is increased to avoid excessive impact force causing damage to the components due to vibration.

[0048] The fixed docking mechanism 7 also includes an operating screw 702, a limiting needle plate 703 and a retractable recess 704. The retractable recess 704 is provided on both sides of the inner cavity of the docking frame head 701. A mounting screw hole is provided in the middle of the inner cavity of the retractable recess 704. Two operating screws 702 are movably installed in the mounting screw holes on both sides, and the limiting needle plates 703 are installed on the opposite ends of the operating screws 702 on both sides.

[0049] The specific implementation method is as follows: during outdoor use, when the working frame 1 needs to be installed at a high place, the top of the fixing rod for installation is engaged with the inner cavity of the docking frame head 701, and then the operating screws 702 on both sides are rotated at the same time to drive the limiting needle plates 703 on both sides to move away from the retractable recess 704, so that the limiting needle plates 703 are in contact with the fixed end to be squeezed and fixed, and the fixing is faster and more convenient.

[0050] Working principle: When collecting gas, the present invention only needs to start the small electromagnetic block 409 at the corresponding position to make the small electromagnetic block 409 generate magnetism, generate magnetic attraction with the mounting magnetic plate 408, drive the mounting magnetic plate 408 to move to the side of the small electromagnetic block 409, and drive the limiting push rod 405 to slide inside the mounting through groove 404, and squeeze the limiting spring 407, and separate the limiting push rod 405 from the limiting recess 406, so that the mounting slide block 403 loses its restraining force, and drives the mounting slide block 403 to slide to the bottom end of the inner cavity of the mounting slide groove 402 through the pulling spring 401 in a stretched state, thereby driving the movable bottom frame 303 to slide downward, and by using the mounting slide block 403 and the mounting slide groove 402 in coordination, the stability and flexibility of the movable bottom frame 303 during the sliding process are increased;

[0051] When the installation slide block 403 moves downward, it drives the connecting rope 306 to move, and the connecting rope 306 pulls the switching plugging plate 307 to move inside the multi-head connecting tube 302, and moves the conveying slot 313 to the inner cavity of the multi-head connecting tube 302, so that the bottom end of the multi-head connecting tube 302 is not blocked. When the switching plugging plate 307 moves, it drives the movable plate 311 to move, and squeezes the installation spring 309. Later, the installation spring 309 after squeezing drives the movable plate 311 and the switching plugging plate 307 to reset, and the sealing folding sleeve 308 is used to ensure the sealing of the switching plugging plate 307 when it moves. When the movable plate 311 moves, it drives the starting top The ball 312 moves, so that the starting top ball 312 contacts the touch switch 314, and the gas detector 10 is started to avoid leakage during the movement and switching. When the movable bottom frame 303 moves downward quickly, the folding tube 304 is stretched, so that negative pressure is generated inside the folding tube 304, and the external gas is sucked into the folding tube 304 through the suction one-way valve, the multi-head connecting tube 302 and the collection tube head 301 for collection and storage. When the gas flows inside the multi-head connecting tube 302, the gas contacts the detection head 310, and the gas is preliminarily detected by the gas detector 10, and the data results after the detection are transmitted to the external remote control center;

[0052] During the use of the working frame 1, the circuit of the limit electromagnetic block 608 is disconnected, so that the limit electromagnetic block 608 loses its magnetism, and the magnetic attraction between the arc-shaped magnetic plate 609 is disconnected, so that the installation ball 604 loses its restraint force. When an unexpected situation occurs during the use of the working frame 1 and it tilts or falls, the installation ball 604 is made to roll inside the installation frame head 601, and in the process of rolling, the installation ball 604 is made to roll to one side of the inner cavity of the installation frame head 601 and contact the annular guide ring 603, so that the connection conductive layer 605 outside the installation ball 604 is made to contact the annular guide ring 603, and then the intelligent control valve 202 is started, so that the protective airbag 201 in a negative pressure state inside is quickly filled with gas, and the protective airbag 201 will quickly expand, and The size of the range enclosed by the inflated protective airbag 201 is much larger than the size of the range of the working frame 1. Before the working frame 1 contacts the ground, the inflated protective airbag 201 will contact and squeeze the ground, and the working frame 1 will not contact and collide with the ground, thereby increasing the protection capability of the working frame 1 during use, and increasing the ability of the working frame 1 to resist accidents during outdoor use, thereby increasing the lifespan of the working frame during use, and avoiding damage to the working frame 1 in the event of an accident during outdoor use, which would result in the inability to use it normally later and reduce its lifespan during later use. The airbag can also play a buffering role, thereby increasing the protection capability of the internal components of the working frame 1 and avoiding the situation where the components are damaged due to vibration due to excessive impact force.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas sampling device for environmental monitoring, comprising a working frame (1), wherein a fixed frame plate (12) is mounted at the bottom of the working frame (1), characterized in that: An accident protection mechanism (2), the accident protection mechanism (2) comprising a mounting ring groove (203), and the upper end and the bottom end of the outer periphery of the working frame (1) are both provided with mounting ring grooves (203); A collecting mechanism (3), the collecting mechanism (3) comprising a multi-head connecting tube (302), a movable bottom frame (303) and a fixed frame head (305), the multi-head connecting tube (302) being installed at the upper end of the inner cavity of the working frame (1), a plurality of fixed frame heads (305) being movably installed at the upper end around the inner cavity of the working frame (1), and the bottom ends of the fixed frame heads (305) are all provided with movable bottom frames (303); A limit movement mechanism (4), the limit movement mechanism (4) comprising a mounting slide groove (402) and a mounting slider (403), a plurality of mounting slide grooves (402) are provided around the inner cavity of the working frame (1), a mounting slider (403) is slidably mounted on the upper end of the inner cavity of the mounting slide groove (402), and an end of the mounting slider (403) away from the mounting slide groove (402) is connected to one side of the movable bottom frame (303); An abnormality monitoring mechanism (6), the abnormality monitoring mechanism (6) comprising a mounting frame head (601), the mounting frame head (601) being arranged in the middle of the inner cavity of the working frame (1); A fixed docking mechanism (7), the fixed docking mechanism (7) comprising a docking frame head (701), the docking frame head (701) being installed at the bottom end of the fixed frame plate (12); A gas detector (10) is arranged at the upper middle end of the inner cavity of the working frame (1), the top end of the mounting frame head (601) is connected to the bottom end of the gas detector (10), and connecting wires (5) are installed around the top end of the gas detector (10); The abnormal monitoring mechanism (6) further comprises a fixing spring (602), an annular guide ring (603), a mounting ball (604), a connecting conductive layer (605), a movable bottom plate (606), an adsorption guide plate (607), a limiting electromagnetic block (608) and an arc-shaped magnetic plate (609); a fixing spring (602) is mounted at the top end of the inner cavity of the mounting frame head (601); a mounting ball (604) is mounted at the bottom end of the fixing spring (602); the mounting frame head (601) is in a diamond-shaped structure; an annular guide ring (603) is mounted in the middle of the inner cavity of the mounting frame head (601); A movable bottom plate (606) is installed at the bottom of the framing head (601), an adsorption guide plate (607) is installed at the top of the movable bottom plate (606), a limit electromagnetic block (608) is installed in the middle of the movable bottom plate (606), the top of the limit electromagnetic block (608) is connected to the bottom of the adsorption guide plate (607), a connecting conductive layer (605) is installed around the outside of the installation ball (604), the connecting conductive layer (605) and the annular guide ring (603) are electrically connected to the intelligent control valve (202) respectively, and an arc-shaped magnetic plate (609) is installed at the bottom of the inner cavity of the installation ball (604).

2. A gas sampling device for environmental monitoring according to claim 1, characterized in that: The accident protection mechanism (2) further comprises a protection airbag (201) and an intelligent control valve (202); the protection airbag (201) is installed inside the mounting ring groove (203); the protection airbag (201) is in a circular ring structure when viewed from above; the interior of the protection airbag (201) is in a negative pressure state; the intelligent control valve (202) is installed at the upper and lower ends of both sides of the inner cavity of the working frame (1); and connection openings are provided at both sides of the mounting ring groove (203) and at both ends of the interior of the protection airbag (201) at positions relative to the intelligent control valve (202).

3. A gas sampling device for environmental monitoring according to claim 1, characterized in that: Operating handles (8) are installed on both sides of the working frame (1); a wireless controller is installed inside the gas detector (10), and the wireless controller is wirelessly connected to an external remote control center; a mounting air bag (9) is installed on the outside of the gas detector (10); fixed frame plates (11) are installed on both sides of the outside of the mounting air bag (9); and the top of the fixed frame plate (11) is connected to the bottom of the multi-head connecting pipe (302).

4. A gas sampling device for environmental monitoring according to claim 1, characterized in that: The collecting mechanism (3) further comprises a collecting tube head (301), a folding tube (304), a connecting rope (306), a switching plugging plate (307), a sealing folding sleeve (308), a mounting spring (309), a detection head (310), a movable plate (311), a starting top ball (312), a conveying slot (313) and a touch switch (314). The folding tube (304) is installed around the bottom end of the fixed frame head (305). The bottom end of the folding tube (304) is connected to the top end of the movable bottom frame (303). A collection pipe head (301) is installed at the top of the working frame (1), a movable through groove is opened at the bottom of the multi-head connecting pipe (302), one side of the switching plugging plate (307) is movably embedded in the movable through groove, a conveying through groove (313) is opened in the middle of the side of the switching plugging plate (307) close to the gas detector (10), movable plates (311) are installed on both sides of the switching plugging plate (307), and a sealing folding sleeve (311) is installed around the side of the movable plate (311) close to the multi-head connecting pipe (302). 08), the end of the sealing folding sleeve (308) away from the movable plate (311) is connected to the multi-head connecting tube (302), the middle part of the inner cavity of the conveying groove (313) away from the multi-head connecting tube (302) is equipped with a detection head (310), the end of the connecting wire (5) away from the gas detector (10) is connected to the detection head (310), and the upper end and the bottom end of the left side of the movable plate (311) close to the connecting wire (5) are equipped with a plurality of mounting springs (309), and the mounting springs (309) are installed on the inner cavity of the conveying groove (313) away from the multi-head connecting tube (302). 9) One end away from the movable plate (311) is connected to the multi-head connecting tube (302), a connecting rope (306) is installed on the left side of the movable plate (311) away from the end of the detection head (310), a starting top ball (312) is installed on the bottom end of the right side of the movable plate (311) close to the end of the detection head (310), and a touch switch (314) is installed on one side of the bottom end of the multi-head connecting tube (302) close to the starting top ball (312), and the touch switch (314) is electrically connected to the gas detector (10).

5. A gas sampling device for environmental monitoring according to claim 4, characterized in that: The conveying channel (313) is rectangular in structure when viewed from above. A conveying opening is provided at the top of the working frame (1) at a position relative to the collecting tube head (301). A mounting circular opening is provided at one side of the inner cavity of the conveying channel (313) at a position relative to the detecting head (310). A connecting hole is provided at the top of the fixed frame head (305) and the middle of the bottom of the movable bottom frame (303). A control valve head is installed at the bottom of the movable bottom frame (303) at a position relative to the connecting hole. Retractable annular grooves are provided around the top of the movable bottom frame (303) and around the bottom of the fixed frame head (305).

6. A gas sampling device for environmental monitoring according to claim 1, characterized in that: The limit movement mechanism (4) further comprises a pulling spring (401), an installation slot (404), a limiting push rod (405), a limiting recess (406), a limiting spring (407), an installation magnetic plate (408) and a small electromagnetic block (409); the bottom end of the installation slider (403) is installed with a pulling spring (401) in a stretched state; the bottom end of the pulling spring (401) is connected to the bottom end of the inner cavity of the installation slot (402); the bottom end of the installation slider (403) is provided with an installation slot (404); the inner cavity of the installation slot (404) is movably provided with a limiting push rod (405); a limiting recess (406) is provided at the middle and upper end of one side of the inner cavity of the installation slot (402); one end of the limiting push rod (405) away from the installation slot (404) is provided with a limiting recess (406); The movable bottom frame (303) is provided with a small electromagnetic block (409) in the middle of a side of the bottom end of the movable bottom frame (303) close to the mounting magnetic plate (408). The small electromagnetic block (409) is provided with a remote control switch, and the remote control switch is wirelessly connected to an external remote control center. A circular notch is provided on a side of the mounting through slot (404) close to the limiting notch (406), and a limiting spring (407) is installed inside the circular notch. A circular baffle is provided on a side of the limiting top rod (405) close to the circular notch, and an end of the limiting spring (407) away from the circular notch is connected to the circular baffle.

7. A gas sampling device for environmental monitoring according to claim 1, characterized in that: The fixed docking mechanism (7) further comprises an operating screw (702), a limiting needle plate (703) and a retractable recess (704); the retractable recess (704) is provided on both sides of the inner cavity of the docking frame head (701); a mounting screw hole is provided in the middle of the inner cavity of the retractable recess (704); the two operating screws (702) are movably mounted inside the mounting screw holes on both sides, respectively; and limiting needle plates (703) are installed on opposite ends of the operating screws (702) on both sides.

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