Gas collecting device for chemical analysis and detection

Abstract

The invention discloses a gas collection device for chemical analysis and detection, and relates to the technical field of gas collection and detection, the gas collection device comprises a use cylinder and a sampling mechanism, the use cylinder is of a circular structure, the sampling mechanism comprises fixed pipes, a folding airbag and a movable pipe, the fixed pipes are mounted at the middle upper ends of the periphery of an inner cavity of the use cylinder, and the folding airbag is mounted on the movable pipe. Folding air bags are installed at the bottom ends of the fixed pipes, and movable pipes are installed at the bottom ends of the folding air bags. When sampling is carried out, the sampling mechanism is started to trigger the auxiliary adsorption mechanism, when gas is sucked and sampled, the gas sampling efficiency is improved through a dual negative pressure mode, the suction force in the sampling process is improved, and the situation that in the gas sampling process, the environment outside the gas to be sampled is complex, and the sampling efficiency is high is avoided. If the suction force is not enough during sampling, the sampling cannot be successful.

Description

Technical Field

[0001] The invention relates to the technical field of gas collection and detection, and in particular to a gas collection device for chemical analysis and detection. Background Art

[0002] At present, a large amount of gas is generated in the industrial process, and in order to conduct safety inspections on industrial plants, it is necessary to conduct gas sampling and testing in the working area of ​​the plant during the monitoring process. Although the existing sampling method is manual sampling, it can only be sampled once, and each sample needs to be saved separately. In the process of extracting gas, it is impossible to conduct preliminary testing on the sampled gas, and it is impossible to provide staff with testing ideas in advance. Summary of the invention

[0003] The object of the present invention is to provide a gas collection device for chemical analysis detection to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A gas collection device for chemical analysis detection, comprising a use tube, and the use tube is a circular structure;

[0005] The sampling mechanism includes a fixed tube, a folding airbag and a movable tube. The upper end of the inner cavity of the use tube is equipped with a fixed tube, the lower end of the fixed tube is equipped with a folding airbag, and the lower end of the folding airbag is equipped with a movable tube;

[0006] Adsorption treatment mechanism, the adsorption treatment mechanism includes a mounting circular frame and a filter cartridge, the top of the use cartridge is mounted with a mounting circular frame, and a plurality of filter cartridges are movably mounted around the inner cavity of the mounting circular frame;

[0007] A fixed docking mechanism, the fixed docking mechanism comprises a fixed frame head and a mounting recess, the fixed frame head is mounted at the bottom end of the use tube, and mounting recesses are provided on both sides of the inner cavity of the use tube;

[0008] Auxiliary adsorption mechanism, the auxiliary adsorption mechanism includes an adsorption frame head and an adsorption turbofan, the top of each fixed tube is equipped with an adsorption frame head, and the inner cavity of each adsorption frame head is movably provided with an adsorption turbofan;

[0009] The detection mechanism includes an installation ring groove and an annular test paper. The fixed tube inner cavity is provided with installation ring grooves all around. The inner cavity of the installation ring groove is movably provided with annular test paper. The bottom end of the inner cavity of the installation ring groove is a concave structure. A stopper is installed on one side of the top end of the inner cavity of the installation ring groove.

[0010] Preferably, the sampling mechanism also includes an observation plate, an adsorption one-way valve, a pulling spring, a connecting hose, a control valve head, a fixed sliding rod, a tension spring, a movable ring sleeve, a connecting iron block, a fixed electromagnetic block, an adsorption layer and a multi-head connecting tube. A number of observation plates are equidistantly installed around the outside of the use tube, control valve heads are installed around the bottom end of the use tube, connecting hoses are installed at the bottom end of the movable tube, the bottom end of the connecting hose passes through the bottom end of the use tube and is connected to the top end of the control valve head, a multi-head connecting tube is installed at the top end of the inner cavity of the use tube, the multi-head connecting tube is installed around the adsorption one-way valve, the bottom end of the filter tube passes through the top end of the use tube and is connected to the top end of the multi-head connecting tube, a connecting tube is installed on one side of the adsorption one-way valve, and the bottom end of the connecting tube is connected to one side of the adsorption frame head, the top of the fixed tube is provided with air holes, the bottom end of the movable tube is provided with adsorption layers around the bottom end, the bottom end of the inner cavity of the movable tube is an arched structure, and the bottom end of the movable tube is provided with a circular hole.

[0011] Preferably, a movable ring sleeve is installed on one side of the movable tube, and a fixed sliding rod is slidably installed in the inner cavity of the movable ring sleeve, and the bottom end of the fixed sliding rod is connected to the bottom end of the inner cavity of the using tube, and a tension spring is installed on the outside of the fixed sliding rod, and the top of the tension spring is connected to the bottom end of the movable ring sleeve, and the bottom end of the tension spring is connected to the bottom end of the inner cavity of the using tube. Pulling springs in a stretched state are installed around the bottom end of the movable tube, and the bottom end of the pulling spring is connected to the bottom end of the inner cavity of the using tube, and a connecting iron block is installed on the upper end of the movable ring sleeve away from the movable tube, a fixed frame rod is installed on the upper end of the inner cavity of the using tube, and fixed electromagnetic blocks are installed around the fixed frame rod, and the bottom end of the fixed electromagnetic block is adsorbed and connected to the top end of the connecting iron block, the tension springs are in a stretched state, and the observation plates are made of glass.

[0012] Preferably, the adsorption treatment mechanism also includes a sealing sleeve, a multi-layer filter plate and a touch switch. A remote control switch is installed at the upper end of the rear side of the inner cavity of the use cylinder, and the fixed electromagnetic block is electrically connected to the remote control switch. Touch switches are installed at the middle and lower ends of one side of the inner cavity of the filter cylinder, and the touch switch is electrically connected to the remote control switch. A sealing sleeve is installed at the upper end of the inner cavity of the filter cylinder, and a multi-layer filter plate is installed at the bottom end of the sealing sleeve. The multi-layer filter plate has a circular structure, and the sealing sleeve is made of rubber material.

[0013] Preferably, the auxiliary adsorption mechanism also includes a fixed cover, a restoring spring coil, a retracting roller, a pulling rope, a mounting ring rail, a movable magnetic block, an annular adsorption strip, a fixed circular frame, an adsorption magnetic block, a mounting block and a circular adsorption plate. A fixed cover is installed at the middle of the top end of the fixed tube, and a mounting ring rail is installed at the top end of the fixed tube. A movable magnetic block is movably installed in the inner cavity of the mounting ring rail, an axle rod is installed at the top end of the inner cavity of the fixed cover, a retracting roller is installed at the top end of the movable magnetic block, and the bottom end of the axle rod is connected to the middle of the top end of the inner cavity of the retracting roller, the restoring spring coil is installed in the middle of the axle rod, one end of the restoring spring coil is connected to the upper end of one side of the inner cavity of the fixed cover, a pulling rope is wrapped around the outside of the retracting roller, a long groove is opened on one side of the fixed cover, a pulley is installed on the upper end of one side of the fixed tube, and the end of the pulling rope away from the retracting roller passes through the long groove and the outside of the pulley and is connected to one side of the top end of the movable ring sleeve.

[0014] Preferably, a fixed circular frame is installed at the top of the inner cavity of the adsorption frame head, a mounting block is movably installed at the inner cavity of the fixed circular frame, an adsorption magnetic block is installed at the top of the mounting block, a number of round beads are installed around the inner cavity of the mounting ring rail and around the outside of the mounting block, the mounting block is a circular structure, the bottom end of the mounting block is connected to the top of the adsorption turbofan, annular adsorption strips are installed at the upper and bottom ends around the inner cavity of the fixed circular frame, a circular adsorption plate is installed at the top of the inner cavity of the adsorption frame head at a position relative to the adsorption magnetic block, and a connecting circular opening is opened on one side of the adsorption frame head at a position relative to the connecting pipe.

[0015] Preferably, the detection mechanism also includes a fixed elastic rope, a storage frame, a movable slider, an extrusion airbag, a fixed cylinder, a multi-connected air pipe, a mounting slot, a discharge pipe head and an annular sealing sheet. The upper ends of both sides of the movable tube are provided with mounting slots, the inner cavities of the mounting slots are provided with storage frames, the upper ends of the storage frames on a side away from the mounting slots are provided with a gas supply one-way valve, the side of the movable tube away from the movable ring sleeve is provided with a fixed cylinder, the upper end of the inner cavity of the fixed cylinder is provided with a multi-connected air pipe, the top end of the multi-connected air pipe is connected to the gas supply one-way valve, the top end of the inner cavity of the fixed cylinder is provided with an extrusion airbag, the bottom end of the extrusion airbag is provided with a movable slider, the end of the movable slider away from the fixed cylinder is provided with a fixed elastic rope, and the top end of the fixed elastic rope is connected to one side of the fixed tube.

[0016] Preferably, a movable long groove is provided in the middle of a side of the fixed tube away from the movable tube, conveying air holes are provided at the top of the fixed tube and the extrusion airbag, a conveying circular opening is provided on one side of the bottom end of the inner cavity of the installation groove, a discharge pipe head is installed at the bottom of the storage frame at a position opposite to the conveying circular opening, an annular sealing sheet is installed at the upper end of the inner cavity of the discharge pipe head, the annular sealing sheet is made of rubber material, a circular opening is provided in the middle of the annular sealing sheet, and liquid water is added inside the storage frame.

[0017] Preferably, the fixed docking mechanism also includes a pulling elastic rope, a fixing spring and a limit plug. The limit plug is installed at the bottom end of the inner cavity of the installation recess through a rebound hinge. A fixing spring is installed in the middle of one side of the limit plug close to the installation recess. The end of the fixing spring away from the limiting plug is connected to one side of the inner cavity of the installation recess. A pulling elastic rope is installed at one end of the limit plug close to the installation recess. A pull ring is installed at the end of the pulling elastic rope away from the positioning end of the limit plug through the fixed frame head.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When the present invention is sampling, the sampling mechanism is activated to trigger the auxiliary adsorption mechanism. When the gas is sucked and sampled, the efficiency of gas sampling is improved by means of double negative pressure, and the suction force of the suction during the sampling process is improved, so as to avoid that the environment outside the sampled gas is relatively complicated during the gas sampling process. If the suction force during sampling is insufficient, the sampling will fail, or the sampled gas will not reach the amount for later detection, and re-sampling will be required. In addition, the amount of the sample is too small, resulting in errors in the final detection result. It can also avoid that the sampled gas cannot be collected at the collection end due to the long distance between the extraction port and the collection end, and the suction force is insufficient, so that the storage test cannot be performed. In the process of sampling, gas from multiple places can be sampled at the same time, and can be classified and stored separately during the sampling process, so as to avoid sampling once and storing separately during the sampling process, thereby reducing the efficiency of sampling and improving the cost of sampling.

[0020] 2. The present invention starts the detection mechanism through the sampling mechanism at the same time, and the staff can observe and judge through the observation plate, and in the process of gas sampling, a preliminary test can be carried out at the first time of collection, so the staff can make a preliminary judgment and analysis, which increases the efficiency of the detection, avoids the situation that the preliminary test cannot be carried out during the sampling process, and the staff need to carry out step-by-step detection in the later stage, and cannot provide guidance for the staff for the later detection when the samples are stored. In addition, the accuracy of the detection process can be increased by separating the dry and wet parts, which avoids the situation that if the detection end is wet at the beginning during the detection process, the water will evaporate over time, and the detection effect cannot be achieved when it is used again in the later stage, which reduces the accuracy of the detection process, and can be carried out during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0022] Figure 2 A cross-sectional structural diagram of a use tube provided in an embodiment of the present invention;

[0023] Figure 3 A structural diagram of a partial cross-section of a movable tube provided in an embodiment of the present invention;

[0024] Figure 4 A cross-sectional structural diagram of a filter cartridge provided in an embodiment of the present invention;

[0025] Figure 5 A cross-sectional structural diagram of a fixed cover provided in an embodiment of the present invention;

[0026] Figure 6 A structural diagram of a cross-section of a fixed frame head provided in an embodiment of the present invention;

[0027] Figure 7 The embodiment of the present invention provides Figure 3 A magnified structural diagram in the middle.

[0028] In the figure: 1. Use cylinder; 2. Sampling mechanism; 201. Observation plate; 202. Adsorption check valve; 203. Fixed tube; 204. Folding airbag; 205. Movable tube; 206. Pull spring; 207. Connecting hose; 208. Control valve head; 209. Fixed slide rod; 210. Tension spring; 211. Movable ring sleeve; 212. Connecting iron block; 213. Fixed electromagnetic block; 214. Adsorption layer; 215. Multi-head connecting tube; 3. Adsorption treatment mechanism; 301. Installing round frame; 302. Filter cylinder; 303. Sealing sleeve; 304. Multi-layer filter plate; 305. Touch switch; 4. Fixed docking mechanism; 401. Fixed frame head; 402. Installing notch; 403. Pulling elastic rope; 404. Fixed Spring; 405, limit plug; 5, auxiliary adsorption mechanism; 501, adsorption frame head; 502, adsorption turbofan; 503, fixed cover; 504, rebound spring coil; 505, retracting roller; 506, pulling rope; 507, mounting ring rail; 508, movable magnetic block; 509, annular adsorption strip; 510, fixed round frame; 511, adsorption magnetic block; 512, mounting block; 513, circular adsorption plate; 6, detection mechanism; 601, fixed elastic rope; 602, mounting ring groove; 603, ring test paper; 604, storage frame; 605, moving slider; 606, extrusion airbag; 607, fixed cylinder; 608, multi-head connecting air pipe; 609, mounting notch; 610, discharge pipe head; 611, ring sealing sheet. 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 1-7 , the present invention provides a technical solution: a gas collection device for chemical analysis detection, including a use tube 1, and the use tube 1 is a circular structure;

[0031] The sampling mechanism 2 includes a fixed tube 203, a folding airbag 204 and a movable tube 205. The fixed tube 203 is installed at the upper end of the inner cavity of the cylinder 1, the folding airbag 204 is installed at the bottom of the fixed tube 203, and the movable tube 205 is installed at the bottom of the folding airbag 204. The movable tube 205 is made of glass material;

[0032] Adsorption treatment mechanism 3, the adsorption treatment mechanism 3 includes a mounting circular frame 301 and a filter cartridge 302, the mounting circular frame 301 is mounted on the top of the use cartridge 1, and a plurality of filter cartridges 302 are movably mounted around the inner cavity of the mounting circular frame 301;

[0033] The fixed docking mechanism 4 includes a fixed frame head 401 and a mounting recess 402. The fixed frame head 401 is mounted at the bottom of the use tube 1. Both sides of the inner cavity of the use tube 1 are provided with mounting recesses 402.

[0034] Auxiliary adsorption mechanism 5, the auxiliary adsorption mechanism 5 includes an adsorption frame head 501 and an adsorption turbofan 502, the top of the fixed tube 203 is installed with the adsorption frame head 501, and the inner cavity of the adsorption frame head 501 is movably provided with the adsorption turbofan 502;

[0035] The detection mechanism 6 includes an installation ring groove 602 and an annular test paper 603. The installation ring groove 602 is opened around the inner cavity of the fixed tube 203. The inner cavity of the installation ring groove 602 is movably installed with an annular test paper 603. The bottom end of the inner cavity of the installation ring groove 602 is a concave structure, and a block is installed on one side of the top end of the inner cavity of the installation ring groove 602.

[0036] The sampling mechanism 2 also includes an observation plate 201, an adsorption check valve 202, a pulling spring 206, a connecting hose 207, a control valve head 208, a fixed slide rod 209, a tension spring 210, a movable ring sleeve 211, a connecting iron block 212, a fixed electromagnetic block 213, an adsorption layer 214 and a multi-head connecting pipe 215. A plurality of observation plates 201 are equidistantly installed around the outside of the use tube 1, control valve heads 208 are installed around the bottom of the use tube 1, and connecting hoses 207 are installed at the bottom of the movable tube 205. The bottom end of the connecting hose 207 passes through the bottom of the use tube 1 and the control valve head 208. The top of the valve head 208 is connected, a multi-head connecting pipe 215 is installed at the top of the inner cavity of the use cylinder 1, and an adsorption check valve 202 is installed around the multi-head connecting pipe 215. The bottom ends of the filter cylinders 302 pass through the top of the use cylinder 1 and are connected to the top of the multi-head connecting pipe 215. A connecting pipe is installed on one side of the adsorption check valve 202, and the bottom end of the connecting pipe is connected to one side of the adsorption frame head 501. The top of the fixed tube 203 is provided with air holes, and an adsorption layer 214 is installed around the bottom end of the movable tube 205. The bottom end of the inner cavity of the movable tube 205 is an arched structure, and the bottom end of the movable tube 205 is provided with a circular hole.

[0037] A movable ring sleeve 211 is installed on one side of the movable tube 205, and a fixed slide bar 209 is slidably installed in the inner cavity of the movable ring sleeve 211. The bottom end of the fixed slide bar 209 is connected to the bottom end of the inner cavity of the use tube 1. A tension spring 210 is installed on the outside of the fixed slide bar 209. The top of the tension spring 210 is connected to the bottom end of the movable ring sleeve 211, and the bottom end of the tension spring 210 is connected to the bottom end of the inner cavity of the use tube 1. A pulling spring 206 in a stretched state is installed around the bottom end of the movable tube 205, and the bottom end of the pulling spring 206 is connected to the bottom end of the inner cavity of the use tube 1. A connecting iron block 212 is installed on the upper end of the movable ring sleeve 211 away from the movable tube 205, and a fixed frame rod is installed on the upper end of the inner cavity of the use tube 1, and fixed electromagnetic blocks 213 are installed around the fixed frame rod. The bottom end of the fixed electromagnetic block 213 is adsorbed and connected to the top of the connecting iron block 212. The tension spring 210 is in a stretched state, and the observation plate 201 is made of glass material;

[0038] The specific implementation method is as follows: when sampling multiple areas, the power supply of one of the fixed electromagnetic blocks 213 is disconnected by the remote control switch, and the adsorption one-way valve 202 at the corresponding position is started, so that the connecting hose 207 and the multi-head connecting tube 215 are connected, the fixed electromagnetic block 213 loses its magnetism, and the connecting iron block 212 loses its restraint force, and the movable tube 205 and the movable ring sleeve 211 are driven downward by the pulling spring 206 and the stretching spring 210 in a stretched state. When the movable ring sleeve 211 slides outside the fixed slide rod 209, the stability and guidance of the movable tube 205 when moving downward are increased. When the movable tube 205 moves downward, the folding airbag 204 is stretched, and negative pressure is generated inside the fixed tube 203, the folding airbag 204 and the movable tube 205, and the gas is sampled.

[0039] The adsorption treatment mechanism 3 also includes a sealing sleeve 303, a multi-layer filter plate 304 and a touch switch 305. A remote control switch is installed at the upper end of the rear side of the inner cavity of the use cylinder 1, and the fixed electromagnetic block 213 is electrically connected to the remote control switch. The touch switch 305 is installed at the middle and lower ends of one side of the inner cavity of the filter cylinder 302. The touch switch 305 is electrically connected to the remote control switch. The sealing sleeve 303 is installed at the upper end of the inner cavity of the filter cylinder 302, and the multi-layer filter plate 304 is installed at the bottom end of the sealing sleeve 303. The multi-layer filter plate 304 is a circular structure, and the sealing sleeve 303 is made of rubber material;

[0040] The specific implementation method is as follows: when sampling the gas, the gas passes through the inside of the filter cartridge 302, and the impurities in the air are filtered through the multi-layer filter plate 304 inside the filter cartridge 302, so as to avoid the presence of impurities in the sampling process and excessive impurities adsorbed by the multi-layer filter plate 304. When inhaling again, the multi-layer filter plate 304 will be driven to move inside the mounting circular frame 301, so that the multi-layer filter plate 304 contacts the touch switch 305, and the remote control switch is started. The alarm carried by the staff is started through the remote control switch, telling the staff that the multi-layer filter plate 304 needs to be processed for later reuse.

[0041] The auxiliary adsorption mechanism 5 also includes a fixed cover 503, a return spring coil 504, a retractable roller 505, a pulling rope 506, a mounting ring rail 507, a movable magnetic block 508, an annular adsorption strip 509, a fixed round frame 510, an adsorption magnetic block 511, a mounting block 512 and a circular adsorption plate 513. The fixed cover 503 is installed in the middle of the top of the fixed tube 203, and the top of the fixed tube 203 is installed with a mounting ring rail 507. The inner cavity of the mounting ring rail 507 is movably installed with an active magnetic block 508, and the top of the inner cavity of the fixed cover 503 is installed with a shaft Rod, a retractable roller 505 is installed on the top of the movable magnetic block 508, and the bottom end of the shaft is connected to the middle of the top of the inner cavity of the retractable roller 505, a return spring ring 504 is installed in the middle of the shaft, one end of the return spring ring 504 is connected to the upper end of one side of the inner cavity of the fixed cover 503, a pulling rope 506 is wound around the outside of the retractable roller 505, a long groove is opened on one side of the fixed cover 503, a pulley is installed on the upper end of one side of the fixed tube 203, and the end of the pulling rope 506 away from the retractable roller 505 passes through the long groove and the outside of the pulley and is connected to one side of the top of the movable ring sleeve 211;

[0042] A fixed circular frame 510 is installed at the top of the inner cavity of the adsorption frame head 501, and a mounting block 512 is movably installed in the inner cavity of the fixed circular frame 510. An adsorption magnetic block 511 is installed at the top of the mounting block 512. A number of round beads are installed around the inner cavity of the mounting ring rail 507 and around the outer periphery of the mounting block 512. The mounting block 512 is a circular structure, and the bottom end of the mounting block 512 is connected to the top of the adsorption turbofan 502. Annular adsorption strips 509 are installed at the upper and bottom ends of the inner cavity of the fixed circular frame 510. A circular adsorption plate 513 is installed at the top of the inner cavity of the adsorption frame head 501 at a position relative to the adsorption magnetic block 511, and a connecting circular opening is opened at one side of the adsorption frame head 501 at a position relative to the connecting pipe.

[0043] The specific implementation is as follows: when the movable ring sleeve 211 moves downward, it will drive the pulling rope 506 to move downward, and the movement of the pulling rope 506 will drive the retractable roller 505 to rotate. When the retractable roller 505 rotates, the return spring coil 504 will be contracted, and the retractable roller 505 will drive the movable magnetic block 508 to rotate when it rotates. When the movable magnetic block 508 rotates, the mutual magnetic attraction between the movable magnetic block 508 and the adsorption magnetic block 511 will drive the adsorption magnetic block 511 to rotate. When the movable magnetic block 508 and the adsorption magnetic block 511 rotate, the ball will be driven to rotate. Through the rotation of the ball, the flexibility of the movable magnetic block 508 and the adsorption magnetic block 511 during rotation is increased, and the friction during rotation is reduced. When the adsorption magnetic block 511 rotates, it will drive the adsorption turbofan 502 to rotate. When the adsorption turbofan 502 rotates, negative pressure is generated inside the adsorption frame head 501, which presses the gas. When taking samples by suction, the efficiency of gas sampling is improved by means of double negative pressure, and the suction force of suction during the sampling process is improved to avoid the complex environment outside the sampled gas during the gas sampling process. If the suction force during sampling is insufficient, sampling will fail, or the sampled gas will not reach the amount required for later detection, requiring re-sampling, and the sampled amount is too small, resulting in errors in the final test results. It can also avoid the situation where the sampled gas cannot be gathered at the collecting end due to the long distance between the extraction port and the collection end, and the suction force is insufficient, making it impossible to store and test. In the sampling process, gases from multiple locations can be sampled at the same time, and can be classified and stored separately during the sampling process, avoiding sampling once and storing it separately during the sampling process, thereby reducing the efficiency of sampling and increasing the cost of sampling.

[0044] The detection mechanism 6 also includes a fixed elastic rope 601, a storage frame 604, a movable slider 605, an extrusion airbag 606, a fixed cylinder 607, a multi-head connection air pipe 608, a mounting notch 609, a discharge pipe head 610 and an annular sealing sheet 611. The upper ends of both sides of the movable pipe 205 are provided with mounting notches 609, the inner cavities of the mounting notches 609 are installed with storage frames 604, and the upper ends of the storage frames 604 away from the mounting notches 609 are installed with gas delivery one-way valves. A fixed cylinder 607 is installed on one side away from the movable ring sleeve 211, a multi-connection air pipe 608 is installed on the upper end of the inner cavity of the fixed cylinder 607, the top of the multi-connection air pipe 608 is connected to the gas delivery one-way valve, an extrusion air bag 606 is installed on the top of the inner cavity of the fixed cylinder 607, a moving slider 605 is installed on the bottom of the extrusion air bag 606, a fixed elastic rope 601 is installed on the end of the moving slider 605 away from the fixed cylinder 607, and the top of the fixed elastic rope 601 is connected to one side of the fixed tube 203;

[0045] A movable long groove is provided in the middle of one side of the fixed cylinder 607 away from the movable tube 205, a conveying air hole is provided at the top of the fixed cylinder 607 and the extrusion airbag 606, a conveying round opening is provided on one side of the bottom end of the inner cavity of the mounting notch 609, a discharge pipe head 610 is installed at the bottom end of the storage frame 604 at a position opposite to the conveying round opening, an annular sealing sheet 611 is installed at the upper end of the inner cavity of the discharge pipe head 610, the annular sealing sheet 611 is made of rubber material, a round opening is provided in the middle of the annular sealing sheet 611, and the size of the round opening is in a closed state when not opened, so there are no bubbles in the liquid water inside the storage frame 604, and liquid water is added inside the storage frame 604;

[0046] The specific implementation is as follows: when the movable tube 205 moves downward, the fixed elastic rope 601 is stretched, and the movable slider 605 is driven to slide inside the fixed tube 607. When the movable slider 605 moves upward, the extrusion airbag 606 is squeezed, and the gas inside the extrusion airbag 606 is transported to the storage frame 604 through the multi-head connecting air pipe 608 and the gas transmission one-way valve, and the air pressure inside the storage frame 604 is increased. When the air pressure inside the storage frame 604 increases, the annular sealing sheet 611 will expand, and the size of the circular mouth will increase, causing the liquid water inside the storage frame 604 to fall, and the liquid water will fall onto the annular test paper 603 and soak the annular test paper 603. When the sampled gas is transported to the inside of the movable tube 205, the gas will fully contact with the soaked annular test paper 603, and The color of the annular test paper 603 changes, and the staff can observe and judge through the observation plate 201. In the process of gas sampling, a preliminary test can be performed at the first time of collection, so the staff can make a preliminary judgment and analysis, which increases the efficiency of the test and avoids the situation that the preliminary test cannot be performed during the sampling process. The staff need to perform step-by-step tests in the later stage, and it is impossible to provide guidance for the staff in the later stage when the samples are stored. The accuracy of the test process can be increased by separating the wet and dry parts, which avoids the situation that if the detection end is wet at the beginning during the test, the water will evaporate over time, and the test effect cannot be achieved when it is used again in the later stage, which reduces the accuracy of the test process. The sampling process can be carried out.

[0047] The fixed docking mechanism 4 also includes a pulling elastic rope 403, a fixing spring 404 and a limiting plug 405. The limiting plug 405 is installed at the bottom of the inner cavity of the installation recess 402 through a rebound hinge. The limiting plug 405 is installed at the middle of one side close to the installation recess 402. The end of the fixing spring 404 away from the limiting plug 405 is connected to one side of the inner cavity of the installation recess 402. The end of the limiting plug 405 close to the installation recess 402 is installed with a pulling elastic rope 403. The end of the pulling elastic rope 403 away from the limiting plug 405 passes through the fixed frame head 401 and is installed with a pull ring.

[0048] The specific implementation method is as follows: when collecting gas, use the operating rod and move one end of the operating rod to the inside of the fixed frame head 401. When it moves to the inside of the fixed frame head 401, it will contact one side of the limit plug 405, and drive the limit plug 405 to move toward the inner cavity of the installation recess 402 with the rebound hinge as the axis, and squeeze the fixed spring 404. Through the reaction force of the fixed spring 404, the squeezing force between the limit plug 405 and one end of the operating rod is increased. When the operating rod moves toward the outside of the fixed frame head 401 during use, the top end of the limit plug 405 is inserted into the inside of the operating rod, which further fixes the operating rod, and drives the use tube 1 to move through the operating rod to collect gas.

[0049] Working principle: When sampling multiple areas, the present invention disconnects the power supply of one of the fixed electromagnetic blocks 213 through the remote control switch, and starts the adsorption check valve 202 at the corresponding position, so that the connecting hose 207 and the multi-head connecting pipe 215 are connected, so that the fixed electromagnetic block 213 loses its magnetism, and the connecting iron block 212 loses its restraining force, and then the pull spring 206 and the tension spring 210 in the stretched state drive the movable tube 205 and the movable ring sleeve 211 to move downward. When the movable ring sleeve 211 slides outside the fixed slide rod 209, the stability and guidance of the movable tube 205 when it moves downward are increased. When the movable tube When the movable ring sleeve 211 moves downward, the pulling rope 506 is driven to move downward, and the movement of the pulling rope 506 drives the retractable roller 505 to rotate. When the retractable roller 505 rotates, the rebound spring coil 504 is contracted, and the retractable roller 505 drives the movable magnetic block 508 to rotate when the retractable roller 505 rotates. When the movable magnetic block 508 rotates, the mutual magnetic attraction between the movable magnetic block 508 and the adsorption magnetic block 511 drives the adsorption magnetic block 511 to rotate. The rotation of the movable magnetic block 508 and the adsorption magnetic block 511 will drive the ball to rotate. The rotation of the ball increases the flexibility of the movable magnetic block 508 and the adsorption magnetic block 511 during rotation, and reduces the friction during the rotation process. When the adsorption magnetic block 511 rotates, it drives the adsorption turbofan 502 to rotate. When the adsorption turbofan 502 rotates, a negative pressure is generated inside the adsorption frame head 501. When the gas is sucked and sampled, the efficiency of gas sampling is improved by a double negative pressure method, and the suction force of the suction during the sampling process is improved, so as to avoid the complicated environment outside the sampled gas during the gas sampling process. If the sampling If the suction force is not enough, it will lead to the failure of successful sampling, or the sampled gas will not reach the amount required for later detection, and re-sampling is required. In addition, the sampled amount is too small, resulting in errors in the final test results. It can also avoid the situation where the distance between the extraction port and the collection end is long, and the sampled gas cannot be collected at the collection end due to insufficient suction force, so that the storage test cannot be performed. In the process of sampling, gases from multiple locations can be sampled at the same time, and they can be classified and stored separately during the sampling process, avoiding sampling once and storing them separately during the sampling process, reducing the sampling efficiency and increasing the sampling cost;

[0050] When the movable tube 205 moves downward, the fixed elastic rope 601 is stretched, and the movable slider 605 is driven to slide inside the fixed tube 607. When the movable slider 605 moves upward, the extrusion airbag 606 is squeezed, and the gas inside the extrusion airbag 606 is transported to the storage frame 604 through the multi-head connecting air pipe 608 and the gas transmission one-way valve, and the air pressure inside the storage frame 604 is increased. When the air pressure inside the storage frame 604 increases, the annular sealing sheet 611 is expanded, and the size of the circular opening is enlarged to cause the liquid water inside the storage frame 604 to fall, and the liquid water falls onto the annular test paper 603 and soaks the annular test paper 603. When the sampled gas is transported to the inside of the movable tube 205, the gas is fully in contact with the soaked annular test paper 603, and the annular The color of the test paper 603 changes, and the staff can observe and judge through the observation plate 201. In the process of gas sampling, a preliminary test can be performed at the first time of collection, so the staff can make a preliminary judgment and analysis, which increases the efficiency of the test and avoids the situation that the preliminary test cannot be performed during the sampling process. The staff need to perform step-by-step tests in the later stage, and it is impossible to provide guidance for the staff in the later stage when the samples are stored. The accuracy of the test process can be increased by separating the dry and wet parts, which avoids the situation that if the detection end is wet at the beginning during the test, the water will evaporate over time, and the test effect cannot be achieved when it is used again in the later stage, which reduces the accuracy of the test process. The sampling process can be carried out.

[0051] 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.

[0052] 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 collection device for chemical analysis and detection, comprising a use tube (1), wherein the use tube (1) is a circular structure, characterized in that: A sampling mechanism (2), the sampling mechanism (2) comprising a fixed tube (203), a folding airbag (204) and a movable tube (205); the fixed tube (203) is installed at the upper end of the inner cavity of the use tube (1); the folding airbag (204) is installed at the bottom end of the fixed tube (203); and the movable tube (205) is installed at the bottom end of the folding airbag (204); An adsorption treatment mechanism (3), the adsorption treatment mechanism (3) comprising a mounting circular frame (301) and a filter cartridge (302), the top of the use cartridge (1) being mounted with a mounting circular frame (301), and a plurality of filter cartridges (302) being movably mounted around the inner cavity of the mounting circular frame (301); A fixed docking mechanism (4), the fixed docking mechanism (4) comprising a fixed frame head (401) and a mounting recess (402), the fixed frame head (401) being mounted at the bottom end of the use tube (1), and the mounting recess (402) is provided on both sides of the inner cavity of the use tube (1); An auxiliary adsorption mechanism (5), the auxiliary adsorption mechanism (5) comprising an adsorption frame head (501) and an adsorption turbofan (502), the top of each of the fixed tubes (203) being provided with an adsorption frame head (501), and the inner cavity of each of the adsorption frame heads (501) being movably provided with an adsorption turbofan (502); The detection mechanism (6) comprises a mounting annular groove (602) and an annular test paper (603); the mounting annular groove (602) is provided around the inner cavity of the fixed tube (203); an annular test paper (603) is movably installed in the inner cavity of the mounting annular groove (602); the bottom end of the inner cavity of the mounting annular groove (602) is a concave structure; and a stopper is installed on one side of the top end of the inner cavity of the mounting annular groove (602).

2. A gas collection device for chemical analysis and detection according to claim 1, characterized in that: The sampling mechanism (2) further comprises an observation plate (201), an adsorption one-way valve (202), a pulling spring (206), a connecting hose (207), a control valve head (208), a fixed sliding rod (209), a tension spring (210), a movable ring sleeve (211), a connecting iron block (212), a fixed electromagnetic block (213), an adsorption layer (214) and a multi-head connecting pipe (215). A plurality of observation plates (201) are equidistantly installed around the outside of the use tube (1), control valve heads (208) are installed around the bottom end of the use tube (1), and a connecting hose (207) is installed at the bottom end of the movable pipe (205). The bottom end of the connecting hose (207) passes through the bottom end of the use tube (1). The top of the use cylinder (1) is connected to the control valve head (208); a multi-head connecting pipe (215) is installed at the top of the inner cavity of the use cylinder (1); an adsorption one-way valve (202) is installed around the multi-head connecting pipe (215); the bottom of the filter cylinder (302) passes through the top of the use cylinder (1) and is connected to the top of the multi-head connecting pipe (215); a connecting pipe is installed on one side of the adsorption one-way valve (202); and the bottom of the connecting pipe is connected to one side of the adsorption frame head (501); the top of the fixed tube (203) is provided with an air hole; an adsorption layer (214) is installed around the bottom of the movable tube (205); the bottom of the inner cavity of the movable tube (205) is an arched structure; and the bottom of the movable tube (205) is provided with a circular hole.

3. A gas collection device for chemical analysis and detection according to claim 2, characterized in that: A movable ring sleeve (211) is installed on one side of the movable tube (205), and a fixed slide rod (209) is slidably installed in the inner cavity of the movable ring sleeve (211). The bottom end of the fixed slide rod (209) is connected to the bottom end of the inner cavity of the use tube (1). A tension spring (210) is installed on the outside of the fixed slide rod (209). The top end of the tension spring (210) is connected to the bottom end of the movable ring sleeve (211), and the bottom end of the tension spring (210) is connected to the bottom end of the inner cavity of the use tube (1). The bottom of the movable tube (205) is equipped with tension springs in all directions. A pulling spring (206) is provided, wherein the bottom end of the pulling spring (206) is connected to the bottom end of the inner cavity of the use tube (1); a connecting iron block (212) is installed at the upper end of the movable ring sleeve (211) away from the movable tube (205); a fixed frame rod is installed at the upper end of the inner cavity of the use tube (1), and fixed electromagnetic blocks (213) are installed around the fixed frame rod; the bottom end of the fixed electromagnetic block (213) is adsorbed and connected to the top end of the connecting iron block (212); the pulling springs (210) are in a stretched state; and the observation plates (201) are made of glass.

4. A gas collection device for chemical analysis and detection according to claim 3, characterized in that: The adsorption treatment mechanism (3) further comprises a sealing sleeve (303), a multi-layer filter plate (304) and a touch switch (305); a remote control switch is installed at the upper end of the rear side of the inner cavity of the use cylinder (1); the fixed electromagnetic block (213) is electrically connected to the remote control switch; a touch switch (305) is installed at the middle and lower ends of one side of the inner cavity of the filter cylinder (302); the touch switch (305) is electrically connected to the remote control switch; a sealing sleeve (303) is installed at the upper end of the inner cavity of the filter cylinder (302); a multi-layer filter plate (304) is installed at the bottom end of the sealing sleeve (303); the multi-layer filter plate (304) is in a circular structure; and the sealing sleeve (303) is made of rubber material.

5. A gas collection device for chemical analysis and detection according to claim 1, characterized in that: The auxiliary adsorption mechanism (5) also includes a fixed cover (503), a return spring coil (504), a retractable roller (505), a pulling rope (506), a mounting ring rail (507), a movable magnetic block (508), an annular adsorption strip (509), a fixed circular frame (510), an adsorption magnetic block (511), a mounting block (512) and a circular adsorption plate (513). The fixed cover (503) is installed at the middle of the top end of the fixed tube (203). The top end of the fixed tube (203) is installed with a mounting ring rail (507). The inner cavity of the mounting ring rail (507) is movably installed with a movable magnetic block (508). The top end of the inner cavity of the fixed cover (503) is provided with a mounting ring rail (507). A shaft is installed, a retractable roller (505) is installed at the top of the movable magnetic block (508), and the bottom end of the shaft is connected to the middle of the top of the inner cavity of the retractable roller (505), the return spring coil (504) is installed in the middle of the shaft, one end of the return spring coil (504) is connected to the upper end of one side of the inner cavity of the fixed cover (503), a pulling rope (506) is wrapped around the outside of the retractable roller (505), a long groove is opened on one side of the fixed cover (503), a pulley is installed on the upper end of one side of the fixed tube (203), and the end of the pulling rope (506) away from the retractable roller (505) passes through the long groove and the outside of the pulley and is connected to one side of the top of the movable ring sleeve (211).

6. A gas collection device for chemical analysis and detection according to claim 5, characterized in that: A fixed circular frame (510) is installed at the top of the inner cavity of the adsorption frame head (501), and a mounting block (512) is movably installed in the inner cavity of the fixed circular frame (510). An adsorption magnetic block (511) is installed at the top of the mounting block (512). A plurality of round beads are installed around the inner cavity of the mounting ring rail (507) and around the outer cavity of the mounting block (512). The mounting block (512) is of a circular structure. The bottom end of the mounting block (512) is connected to the top of the adsorption turbofan (502). Annular adsorption strips (509) are installed at the upper and lower ends of the inner cavity of the fixed circular frame (510). A circular adsorption plate (513) is installed at the top of the inner cavity of the adsorption frame head (501) at a position relative to the adsorption magnetic block (511). A connecting circular opening is opened on one side of the adsorption frame head (501) at a position relative to the connecting pipe.

7. A gas collection device for chemical analysis and detection according to claim 1, characterized in that: The detection mechanism (6) further comprises a fixed elastic rope (601), a storage frame (604), a movable slider (605), an extrusion airbag (606), a fixed cylinder (607), a multi-head connecting air pipe (608), a mounting notch (609), a discharge pipe head (610) and an annular sealing sheet (611). The upper ends of both sides of the movable pipe (205) are provided with mounting notches (609), the inner cavities of the mounting notches (609) are provided with storage frames (604), the upper ends of the storage frames (604) on the side away from the mounting notches (609) are provided with a gas transmission one-way valve, and the movable pipe (205) is provided with a plurality of mounting notches (609). 05) A fixed cylinder (607) is installed on the side away from the movable ring sleeve (211), a multi-connected air pipe (608) is installed on the upper end of the inner cavity of the fixed cylinder (607), the top of the multi-connected air pipe (608) is connected to the gas supply one-way valve, an extrusion air bag (606) is installed on the top of the inner cavity of the fixed cylinder (607), a movable slider (605) is installed on the bottom of the extrusion air bag (606), a fixed elastic rope (601) is installed on the end of the movable slider (605) away from the fixed cylinder (607), and the top of the fixed elastic rope (601) is connected to one side of the fixed tube (203).

8. A gas collection device for chemical analysis and detection according to claim 7, characterized in that: A movable long groove is provided in the middle of one side of the fixed tube (607) away from the movable tube (205); conveying air holes are provided at the top of the fixed tube (607) and the extrusion airbag (606); a conveying circular opening is provided on one side of the bottom end of the inner cavity of the installation slot (609); a discharge pipe head (610) is installed at the bottom end of the storage frame (604) at a position opposite to the conveying circular opening; an annular sealing sheet (611) is installed at the upper end of the inner cavity of the discharge pipe head (610); the annular sealing sheet (611) is made of rubber material; a circular opening is provided in the middle of the annular sealing sheet (611); liquid water is added inside the storage frame (604).

9. A gas collection device for chemical analysis and detection according to claim 1, characterized in that: The fixed docking mechanism (4) further comprises a pulling elastic rope (403), a fixing spring (404) and a limiting plug (405); the limiting plug (405) is installed at the bottom end of the inner cavity of the installation recess (402) via a rebound hinge; a fixing spring (404) is installed at the middle of one side of the limiting plug (405) close to the installation recess (402); one end of the fixing spring (404) away from the limiting plug (405) is connected to one side of the inner cavity of the installation recess (402); the one end of the limiting plug (405) close to the installation recess (402) is installed with a pulling elastic rope (403); the one end of the pulling elastic rope (403) away from the positioning end of the limiting plug (405) passes through the fixed frame head (401) and is installed with a pull ring.

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