CN114894562A - Automatic sampling and detecting device for volatile organic compounds in atmosphere - Google Patents

Abstract

The invention discloses an automatic sampling and detecting device for volatile organic compounds in the atmosphere, which comprises a rack, wheels, an electric telescopic rod I, a purifying chamber, a processing box, a display screen, an upper cover plate, a movable cover plate, an adjusting chamber, an air pump I, an electric three-way adjusting valve, a telescopic hose, an in-pipe sampling mechanism, a fixed pipe, a lifting pipe, a connecting hose, a sampling pipe, a filter screen, a temporary sampling mechanism, a placing seat, an air pump II, an air outlet pipe, an active carbon adsorption plate, a motor II, a motor III, a connecting plate, a fixed circular ring, a hemispherical fixture block, a fixed fixture block, a spring II and a limiting buckle, wherein the wheels are arranged below the rack, and one side of each wheel is movably connected with one end of the electric telescopic rod I. The invention is suitable for various different sampling environments by arranging a plurality of groups of sampling pipelines, and gas is uniformly distributed after entering the regulating chamber by arranging a plurality of chambers, and the gas pump II is arranged, so that the gas in each chamber can be pumped out when new sampling is carried out each time, and the cross contamination is avoided.

Description

Automatic sampling and detecting device for volatile organic compounds in atmosphere

Technical Field

The invention belongs to the technical field of gas sampling, and particularly relates to an automatic sampling and detecting device for volatile organic compounds in atmosphere.

Background

In the gas sampling process, because the shapes of the waste gas conveying pipes are different, the peripheral situation of the preset sampling point can be influenced in various aspects, so that the following problems occur in the use process of the traditional sampling mechanism: 1) the sampling device is not suitable for gas sampling of various gas pipes, and because enterprises can design the gas pipes into irregular shapes such as circles, squares and the like according to self conditions when the sampling device is installed in an enterprise, the aperture difference is large, the traditional sampling device cannot adapt to the gas pipes of various specifications, so that the limitation is large, and normal sampling cannot be performed; 2) the traditional atmospheric sampling device cannot adjust the height, the angle and the like, only can perform fixed-point single sampling, and has the defects of large difference of detection data and poor reference; 3) traditional sampling detection device detects and installs in same region with the sampling, does not have solitary enclosure space to do not add and outer air pump carries out the negative pressure operation of bleeding, when leading to carrying out new sampling, still remain the gas of last sampling in detection room or the sampling room, lead to detecting data error great.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an automatic sampling and detecting device for volatile organic compounds in the atmosphere, which is suitable for various different sampling environments by arranging a plurality of groups of sampling pipelines, distributes gas uniformly after the gas enters a regulating chamber by arranging a plurality of chambers, and can extract the gas in each chamber when new sampling is carried out, so that cross contamination is avoided.

In order to achieve the purpose, the invention adopts the technical scheme that:

an automatic sampling and detecting device for volatile organic compounds in the atmosphere comprises a frame, wheels, an electric telescopic rod I, a purifying chamber, a processing box, a display screen, an upper cover plate, a movable cover plate, an adjusting chamber, an air pump I, an electric three-way adjusting valve, a telescopic hose, an in-pipe sampling mechanism, a fixed pipe, a lifting pipe, a connecting hose, a sampling pipe, a filter screen, a temporary sampling mechanism, a placing seat, an air pump II, an air outlet pipe, an active carbon adsorption plate, a motor II, a motor III, a connecting plate, a fixed ring, a hemispherical fixture block, a fixed fixture block, a spring II and a limiting buckle, wherein the wheels are arranged below the frame, one side of each wheel is movably connected with one end of the electric telescopic rod I, the other end of the electric telescopic rod I is movably connected to the frame, the purifying chamber is arranged above the frame, the air outlet pipe is arranged on one side of the purifying chamber, the active carbon adsorption plate is arranged inside the purifying chamber, the adjusting chamber and the two groups of same processing boxes are arranged above the purifying chamber, one side of the processing box is provided with a display screen, the other side of the processing box is provided with a temporary sampling mechanism, one side of the other processing box is provided with a placing seat, the placing seat is fixedly arranged above the purifying chamber, the middle of the processing box is provided with an adjusting chamber, an air pump II arranged on one side of the placing seat is communicated with the adjusting chamber and the purifying chamber through a pipeline, a movable cover plate is arranged above the processing box, an upper cover plate is arranged above the adjusting chamber and movably connected with the movable cover plate, an electric three-way adjusting valve is arranged on the upper cover plate, one end of the electric three-way adjusting valve is communicated with a flexible hose, the other end of the flexible hose is communicated with an in-pipe sampling mechanism, the other end of the electric three-way adjusting valve is communicated with a fixed pipe, a movable gear arranged above the fixed pipe is meshed with a gear arranged at the output end of a motor II, the movable gear arranged above the fixed pipe is internally meshed with the outer wall thread of a lifting pipe, the other end of the lifting pipe is communicated with a sampling pipe through a connecting hose, one side of the sampling pipe is fixedly provided with a connecting plate, connecting plate and fall way loose joint, the gear that establishes on one side of the connecting plate is connected with the gear engagement that the III outputs of motor were established, and sampling tube one end is equipped with fixed ring, and fixed mounting has fixed fixture block on the fixed ring, and movable mounting has the hemisphere fixture block on the fixed fixture block, and hemisphere fixture block one side is equipped with spring II, and fixed ring one side is equipped with the filter screen, and the spacing buckle card that establishes on one side of the filter screen is fixed between hemisphere fixture block and fixed fixture block.

The inside two sets of the same ball that is equipped with of surge chamber, I output of motor is connected to ball one end, is equipped with the guide bar between two ball, and guide bar fixed mounting is equipped with movable base on the wall of surge chamber on guide bar and the ball, and movable base both sides fixed mounting has electric telescopic handle III, and the III other ends of electric telescopic handle are equipped with the mount, installs electric telescopic handle IV on the mount.

The inner part of the treatment box is divided into an upper layer and a lower layer which are not communicated with each other, one layer above the treatment box is a sampling chamber, the bottom of the sampling chamber is fixedly provided with a limiting base, one side of the limiting base is provided with a push plate, one side of the push plate is connected with one end of an electric telescopic rod II, the other end of the electric telescopic rod II is fixedly arranged on the inner wall of the sampling chamber, the other side of the sampling chamber is provided with a plurality of through holes, the outer side of each through hole is fixedly provided with a sealing rubber ring, a built-in sampling bottle is placed on the limiting base, an elastic telescopic rod I is arranged in the built-in sampling bottle, and one end of the elastic telescopic rod I is provided with a conical sealing plug; handle case lower floor and be the same detection room, the detection room is close to and is equipped with the admission section of thick bamboo on the inside of regulating chamber one side, and the admission section of thick bamboo is linked together with the regulating chamber, and the inside elastic telescopic rod II that is equipped with of admission section of thick bamboo, II one ends of elastic telescopic rod are equipped with cylindrical sealing plug, are equipped with bleeder vent I on the admission section of thick bamboo lateral wall, and admission section of thick bamboo one side is equipped with the detector mount pad, and the detection room bottom is linked together through intake pipe and clean room, is equipped with the check valve in the intake pipe.

The sampling mechanism in the tube comprises a movable tube, a connector, a locking rack, a guide plate, a connecting rod I, a connecting rod II, a spring telescopic sleeve I, a spring telescopic sleeve II, a movable ring, a push rod, an elastic buckle I, a pull rod, an elastic buckle II, a connecting rod III, a connecting rod IV, a spring I, a locking plate, a support rod and a limiting plate, wherein one end of the movable tube is provided with the connector, the movable tube is provided with the locking rack and the guide plate, the connector is movably provided with a plurality of connecting rods I, the other end of the connecting rod I is movably connected with the connecting rod II, the other end of the connecting rod II is movably connected with the spring telescopic sleeve II, the other end of the spring telescopic sleeve II is movably connected with the movable ring, one end of the spring telescopic sleeve I is movably connected with one end of the spring telescopic sleeve I, the other end of the spring telescopic sleeve I is movably connected with the movable ring, the movable ring is movably arranged outside the movable tube, one side of the movable ring is provided with the push rod, the push rod is arranged on the elastic buckle I, elastic buckle I fixed mounting is equipped with the limiting plate on the corresponding locking rack one side activity ring on the movable tube, movable mounting has the locking board in the limiting plate, be equipped with spring I between limiting plate and the locking board, locking board one end active link connecting rod IV, connecting rod IV other end active link connecting rod III, connecting rod III movable mounting is on the bracing piece, bracing piece fixed mounting is on the limiting plate, connecting rod III other end active link pull rod, the pull rod is placed in elastic buckle II, II fixed mounting of elastic buckle are on the movable tube.

The temporary sampling mechanism comprises a support, an electric telescopic rod V, an electric telescopic rod VI, a sealing cover, a gas conveying pipe, a fixed sleeve, a gas vent II, an elastic baffle, a movable sleeve, a U-shaped guide plate, a temporary sampling bottle, a rubber bottle plug, a sealing plate and an electric telescopic rod VII, wherein the gas conveying pipe is fixedly communicated with a regulating chamber, the gas conveying pipe is fixedly provided with the fixed sleeve, the fixed sleeve is provided with the gas vent II, the movable sleeve is movably arranged in the fixed sleeve, the elastic baffle is arranged above the movable sleeve, the elastic baffle is fixedly arranged on the fixed sleeve, one side of the movable sleeve is fixedly connected with one end of the electric telescopic rod VII, the other end of the electric telescopic rod VII is fixedly arranged on the sealing plate, the sealing plate surrounds and fixedly arranges the electric telescopic rod VII on one side of the fixed sleeve, the sealing cover is arranged above the fixed sleeve, the sealing cover is movably arranged on the electric telescopic rod VI, and the electric telescopic rod VI is fixedly connected with one end of the electric telescopic rod V, the V other end of the electric telescopic rod is fixedly installed on the support, the support is arranged on one side of the gas conveying pipe and is fixedly installed above the purification chamber, a U-shaped guide plate is arranged below the gas conveying pipe, the temporary sampling bottle is placed in the U-shaped guide plate, and the rubber bottle stopper is placed on the elastic baffle.

Preferably, the bottom of the movable sleeve is provided with a rubber ring, so that the sealing performance of the movable sleeve and the temporary sampling bottle can be enhanced.

Preferably, the connecting rod II is provided with a rubber pad, so that the contact area between the connecting rod II and the inner wall of the pipeline can be increased, and the friction force is increased to prevent slipping.

Compared with the prior art, the invention has the beneficial effects that:

1) by arranging a plurality of groups of sampling pipelines, the in-pipe sampling mechanism can be fixed in the gas transmission pipe through a plurality of groups of connecting rods in a matched mode for gas sampling, the sampling pipe can be driven by the lifting pipe to adjust the angle and the height within a certain range under the atmospheric environment, various sampling environments are met, and the filter screen is clamped and connected to the front section of the sampling pipe through the buckle, so that winged insects, floaters and the like are prevented from entering the pipeline;

2) in the gas sampling process, gas firstly enters the regulating chamber to be uniformly regulated, the gas is monitored in real time or is sampled and stored according to conditions, the gas is temporarily sampled and taken away, a plurality of chambers are independently sealed and communicated with the regulating chamber, and when the gas is sampled for multiple times, the gas can be pumped by the air pump II to each chamber, so that the residual gas cross infection is prevented from influencing the detection result.

3) Be equipped with solitary clean room, gaseous and utilize air pump II to carry out the gas extraction operation to each cavity and get into the clean room after detecting, discharge through the blast pipe after active carbon adsorption, avoid secondary pollution.

Drawings

FIG. 1 is a schematic structural diagram of an automatic sampling and detecting device for volatile organic compounds in the atmosphere according to the present invention;

FIG. 2 is a schematic side view of an automatic sampling and detecting device for volatile organic compounds in the atmosphere according to the present invention;

FIG. 3 is a schematic structural view of an in-tube sampling mechanism;

FIG. 4 is a schematic view of a locking rack configuration;

FIG. 5 is a schematic diagram of a locking plate structure;

FIG. 6 is a schematic view of a sampling chamber configuration;

FIG. 7 is a schematic view of a limiting base structure;

FIG. 8 is a schematic view of the interior of the conditioning chamber;

FIG. 9 is a schematic view of the internal structure of the intake manifold;

FIG. 10 is a schematic view of the inside structure of the purification chamber;

FIG. 11 is a schematic view of the construction of the temporary sampling mechanism;

FIG. 12 is a schematic view of a fixed block construction;

FIG. 13 is a schematic view of a limit buckle structure;

FIG. 14 is an enlarged fragmentary view taken at A of FIG. 2;

FIG. 15 is an enlarged fragmentary view at B of FIG. 4;

FIG. 16 is an enlarged fragmentary view at C of FIG. 8;

FIG. 17 is an enlarged fragmentary view at D of FIG. 11;

in the figure: 10. a frame; 11. a wheel; 12. an electric telescopic rod I; 13. a clean room; 14. a treatment tank; 15. a display screen; 16. an upper cover plate; 17. a removable cover plate; 18. a conditioning chamber; 19. an air pump I; 20. an electric three-way regulating valve; 21. a flexible hose; 22. a sampling mechanism in the tube; 23. a fixed tube; 24. a lifting pipe; 25. a connecting hose; 26. a sampling tube; 27. filtering with a screen; 28. a temporary sampling mechanism; 29. a placing seat; 30. an air pump II; 131. an air outlet pipe; 132. an activated carbon adsorption plate; 141. a sampling chamber; 1411. a limiting base; 1412. an electric telescopic rod II; 1413. pushing the plate; 1414. sealing the rubber ring; 142. a sampling bottle is arranged inside; 1421. an elastic telescopic rod I; 1422. a tapered sealing plug; 143. a detection chamber; 1431. an air inlet cylinder; 1432. an air hole I; 1433. a cylindrical sealing plug; 1434. an elastic telescopic rod II; 1435. a detector mounting base; 1436. an air inlet pipe; 1437. a one-way valve; 181. a motor I; 182. a guide bar; 183. a ball screw; 184. a movable base; 185. an electric telescopic rod III; 186. a fixed mount; 187. an electric telescopic rod IV; 221. a movable tube; 2211. a connector; 2212. locking the rack; 2213. a guide plate; 222. a connecting rod I; 223. a connecting rod II; 224. a spring telescopic sleeve I; 225. a spring telescopic sleeve II; 226. a movable ring; 227. a push rod; 2271. an elastic buckle I; 228. a pull rod; 2281. an elastic buckle II; 2282. a connecting rod III; 2283. a connecting rod IV; 2284. a spring I; 2285. a locking plate; 2286. a support bar; 2287. a limiting plate; 231. a motor II; 241. a motor III; 261. a connecting plate; 262. a fixed ring; 263. a hemispherical fixture block; 264. fixing the fixture block; 265. a spring II; 271. a limiting buckle; 281. a support; 282. an electric telescopic rod V; 283. an electric telescopic rod VI; 2831. a sealing cover; 284. a gas delivery pipe; 285. fixing the sleeve; 2851. a vent hole II; 2852. an elastic baffle plate; 286. a movable sleeve; 287. a U-shaped guide plate; 288. temporarily taking a sample bottle; 2881. a rubber bottle stopper; 289. a sealing plate; 2891. and the electric telescopic rod VII.

Detailed Description

For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 17.

An automatic sampling and detecting device for volatile organic compounds in the atmosphere comprises a rack 10, wheels 11, an electric telescopic rod I12, a purifying chamber 13, a processing box 14, a display screen 15, an upper cover plate 16, a movable cover plate 17, an adjusting chamber 18, an air pump I19, an electric three-way adjusting valve 20, a telescopic hose 21, an in-pipe sampling mechanism 22, a fixed pipe 23, a lifting pipe 24, a connecting hose 25, a sampling pipe 26, a filter screen 27, a temporary sampling mechanism 28, a placing seat 29, an air pump II 30, an air outlet pipe 131, an activated carbon adsorption plate 132, a motor II 231, a motor III 241, a connecting plate 261, a fixed ring 262, a hemispherical fixture block 263, a fixed fixture block 264, a spring II 265 and a limiting block 271 buckle, wherein the wheels 11 are arranged below the rack 10, one side of each wheel 11 is movably connected with one end of the electric telescopic rod I12, the other end of the electric telescopic rod I12 is movably connected to the rack 10, the purifying chamber 13 is arranged above the rack 10, an air outlet pipe 131 is arranged on one side of the purifying chamber 13, an activated carbon adsorption plate 132 is arranged inside the purifying chamber 13, an adjusting chamber 18 and two groups of identical processing boxes 14 are arranged above the purifying chamber 13, a display screen 15 is arranged on one side of each processing box 14, a temporary sampling mechanism 28 is arranged on the other side of each processing box 14, a placing seat 29 is arranged on one side of the other processing box 14, the placing seat 29 is fixedly installed above the purifying chamber 13, an adjusting chamber 18 is arranged in the middle of each processing box 14, an air pump II 30 arranged on one side of the placing seat 29 is communicated with the adjusting chamber 18 and the purifying chamber 13 through a pipeline, a movable cover plate 17 is arranged above the processing box 14, an upper cover plate 16 is arranged above the adjusting chamber 18, the upper cover plate 16 is movably connected with the movable cover plate 17, an electric three-way adjusting valve 20 is arranged on the upper cover plate 16, one end of the electric three-way adjusting valve 20 is communicated with a telescopic hose 21, the other end of the telescopic hose 21 is communicated with an in-pipe sampling mechanism 22, the other end of the electric three-way adjusting valve 20 is communicated with a fixed pipe 23, the movable gear arranged above the fixed pipe 23 is connected with the gear meshed with the output end of the motor II 231, the movable gear arranged above the fixed pipe 23 is meshed with the outer wall thread of the lifting pipe 24, the other end of the lifting pipe 24 is communicated with the sampling pipe 26 through the connecting hose 25, a connecting plate 261 is fixedly arranged on one side of the sampling pipe 26 and movably connected with the lifting pipe 24, the gear arranged on one side of the connecting plate 261 is connected with the gear meshed with the output end of the motor III 241, a fixed ring 262 is arranged at one end of the sampling pipe 26, a fixed fixture block 264 is fixedly arranged on the fixed ring 262, a hemispherical fixture block 263 is movably arranged on the fixed fixture block 264, a spring II 265 is arranged on one side of the hemispherical fixture block 263, a filter screen 27 is arranged on one side of the fixed ring 262, and a limit buckle 271 arranged on one side of the filter screen 27 is clamped between the hemispherical fixture block 263 and the fixed fixture block 264.

The inside two sets of the same ball 183 that is equipped with of regulation room 18, the I181 output of motor is connected to ball 183 one end, is equipped with guide bar 182 between two ball 183, and guide bar 182 fixed mounting is on regulation room 18 inner wall, is equipped with movable base 184 on guide bar 182 and ball 183, and movable base 184 both sides fixed mounting has electric telescopic handle III 185, and electric telescopic handle III 185 other end is equipped with mount 186, installs electric telescopic handle IV 187 on the mount 186.

The interior of the treatment box 14 is divided into an upper layer and a lower layer which are not communicated with each other, one layer above the treatment box 14 is a sampling chamber 141, the bottom of the sampling chamber 141 is fixedly provided with a limiting base 1411, one side of the limiting base 1411 is provided with a push plate 1413, one side of the push plate 1413 is connected with one end of an electric telescopic rod II 1412, the other end of the electric telescopic rod II 1412 is fixedly arranged on the inner wall of the sampling chamber 141, the other side of the sampling chamber 141 is provided with a plurality of through holes, the outer sides of the through holes are fixedly provided with sealing rubber rings 1414, the limiting base 1411 is provided with an internal sampling bottle 142, an elastic telescopic rod I1421 is arranged inside the internal sampling bottle 142, and one end of the elastic telescopic rod I1421 is provided with a conical 1422; the 14 lower floor of treatment box is same detection room 143, it is equipped with air inlet cylinder 1431 to detect room 143 near regulating chamber 18 one side inside, air inlet cylinder 1431 is linked together with regulating chamber 18, air inlet cylinder 1431 is inside to be equipped with II 1434 of elasticity telescopic link, II 1434 one end of elasticity telescopic link is equipped with cylindrical sealing plug 1433, be equipped with bleeder vent I1432 on the air inlet cylinder 1431 lateral wall, air inlet cylinder 1431 one side is equipped with detector mount pad 1435, it is linked together with clean room 13 through intake pipe 1436 to detect the room 143 bottom, be equipped with check valve 1437 on the intake pipe 1436.

The sampling mechanism 22 in the tube comprises a movable tube 221, a connector 2211, a locking rack 2212, a guide plate 2213, a connecting rod I222, a connecting rod II 223, a spring telescopic sleeve I224, a spring telescopic sleeve II 225, a movable ring 226, a push rod 227, an elastic buckle I2271, a pull rod 228, an elastic buckle II 2281, a connecting rod III 2282, a connecting rod IV 2283, a spring I2284, a locking plate 2285, a supporting rod 2286 and a limiting plate 2287, wherein one end of the movable tube 221 is provided with the connector 2211, the movable tube 221 is provided with the locking rack 2212 and the guide plate 2213, the connector 2211 is movably provided with a plurality of connecting rods I222, the other end of the connecting rod I222 is movably connected with the connecting rod II 223, the other end of the connecting rod II 223 is movably connected with the spring telescopic sleeve II 225, the other end of the spring telescopic sleeve II 225 is movably connected with the movable ring 226, one end of the spring telescopic sleeve I222 is movably connected with one end of the movable ring 221224, one end of the spring telescopic sleeve I224, the other end of the spring telescopic sleeve I224 is movably connected with the movable ring 226, activity ring 226 movable mounting is in the movable tube 221 outside, activity ring one side is equipped with push rod 227, push rod 227 is placed on elasticity buckle I2271, elasticity buckle I2271 fixed mounting is on the movable tube 221, be equipped with limiting plate 2287 on the activity ring 226 corresponding locking rack 2212 one side, movable mounting has locking plate 2285 in the limiting plate 2287, be equipped with spring I2284 between limiting plate 2287 and the locking plate 2285, connecting rod IV 2283 is linked in the activity of locking plate 2285 one end, connecting rod IV 2283 other end activity is linked connecting rod III 2282, connecting rod III 2282 movable mounting is on bracing piece 2286, bracing piece 2286 fixed mounting is on limiting plate 2287, connecting rod III 2282 other end activity is linked pull rod 228, pull rod 228 is placed in elasticity buckle II 2281, elasticity buckle II 2281 fixed mounting is on movable tube 221.

The temporary sampling mechanism 28 comprises a support 281, an electric telescopic rod V282, an electric telescopic rod VI 283, a sealing cover 2831, a gas conveying pipe 284, a fixed sleeve 285, a gas hole II 2851, an elastic baffle 2852, a movable sleeve 286, a U-shaped guide plate 287, a temporary sampling bottle 288, a rubber bottle stopper 2881, a sealing plate 289, an electric telescopic rod VII 2891, the gas conveying pipe 284 is fixedly communicated with the adjusting chamber 18, the gas conveying pipe 284 is fixedly provided with the fixed sleeve 285, the fixed sleeve 285 is provided with the gas hole II 2851, the fixed sleeve 285 is internally and movably provided with the movable sleeve 286, the elastic baffle 2852 is arranged above the movable sleeve 286, the elastic baffle 2852 is fixedly arranged on the fixed sleeve 285, one side of the movable sleeve 286 is fixedly connected with one end of the electric telescopic rod VII 2891, the other end of the electric telescopic rod VII 2891 is fixedly arranged on the sealing plate 289, the sealing plate 289 surrounds and fixedly arranges the electric telescopic rod VII 2891 on one side of the fixed sleeve 285, fixed sleeve 285 top is equipped with sealed lid 2831, sealed lid 2831 movable mounting is on electric telescopic handle VI 283, electric telescopic handle VI 283 fixed connection electric telescopic handle V282 one end, electric telescopic handle V282 other end fixed mounting is on support 281, support 281 is located gas-supply pipe 284 one side and fixed mounting in clean room 13 top, gas-supply pipe 284 below is equipped with U-shaped deflector 287, sample bottle 288 temporarily places in U-shaped deflector 287, rubber bottle stopper 2881 places on elastic baffle 2852.

The bottom of the movable sleeve 286 is provided with a rubber ring which can enhance the sealing performance of the movable sleeve 286 and the temporary sampling bottle 288.

Be equipped with the rubber pad on the connecting rod II 223, can increase the area of contact of connecting rod II 223 and pipeline inner wall to increase frictional force prevents to skid.

An automatic sampling and detecting device for volatile organic compounds in the atmosphere has the working process as follows: during the production process, according to the requirements of customers, a customer-specified detection instrument is installed on the detector installation seat 1435 to complete the whole assembly, during sampling, if sampling is performed aiming at the atmosphere, the air pump I19 is communicated with the fixed pipe 23 through the electric three-way adjusting valve 20, the motor II 231 drives the lifting pipe 24 to lift in a certain height range through a gear and drives the sampling pipe 26 to adjust the angle in a certain range, if peripheral sampling is performed aiming at an exhaust pipeline which is vertically higher in height and cannot be directly operated by a worker, the motor III 241 can drive the connecting plate 261 to rotate the rotation angle of the sampling pipe 26, if the worker can reach the periphery of the exhaust pipeline, the air pump I19 can be adjusted through the electric three-way adjusting valve 20 to be communicated with the in-pipe sampling mechanism 22 through the telescopic hose 21, and the in-pipe sampling mechanism 22 is placed inside the exhaust pipeline by the worker, the movable ring 226 is pushed along the locking rack 2212 and the guide plate 2213 through the push rod 227, the locking plate 2285 completes locking operation of the movable ring 226, the connecting rod I222, the connecting rod II 223, the spring telescopic sleeve I224 and the spring telescopic sleeve II 225 are mutually matched to complete supporting, the connecting rod II 223 supports the inner side wall of the pipeline, fixing of the movable pipe 221 is completed, waste gas enters the adjusting chamber 18 along the pipeline, after sampling is completed, the movable pipe 221 can be taken down, the pull rod 228 is pulled, multiple groups of connecting rods are matched to lift the locking plate 2285, the movable ring 226 moves to enable the spring telescopic sleeve I224 and the spring telescopic sleeve II 225 to be loosened, the sampling mechanism 22 in the pipe can be placed on the placing seat 29 when being idle, and the collected waste gas enters the adjusting chamber 18 through the air pump I19;

if the waste gas needs to be monitored in real time, the ball screw 183 is driven to rotate by the motor I181, so that the movable base 184 moves to and fro to a specified position along the guide rod 182, then the height is adjusted to a proper height by the electric telescopic rod III 185, the electric telescopic rod IV 187 is aligned to one side of the air inlet cylinder 1431, the electric telescopic rod IV 187 extends, the cylindrical sealing plug 1433 in the air inlet cylinder 1431 is compressed along the elastic telescopic rod II 1434, the air vent I1432 is leaked, the waste gas in the adjusting chamber 18 smoothly enters the detection chamber 143 for specified detection, the detected gas enters the purifying chamber 13 through the air inlet pipe 1436, the air inlet pipe 1436 is provided with a one-way valve 1437 for preventing backflow, and the gas in the purifying chamber 13 is adsorbed by the activated carbon adsorption plate 132 and then is discharged through the air outlet pipe 131;

if mass sampling is needed, the motor I181 drives the ball screw 183 to rotate, so that the movable base 184 moves to and fro along the guide rod 182 to a specified position, then the height is adjusted to a proper height through the electric telescopic rod III 185, the electric telescopic rod IV 187 is aligned with one side of the built-in sampling chamber 141 to be provided with a hole, the electric telescopic rod IV 187 extends to push the conical sealing plug 1422 in the built-in sampling bottle 142 to be compressed along the elastic telescopic rod 142I 1, gas in the adjusting chamber 18 enters the built-in sampling bottle 142, the electric telescopic rod IV 187 retracts after sampling is completed, and the conical sealing plug 1422 resets to complete sealing;

if need carry out interim sample, with the shrink of electric telescopic handle V282, drive electric telescopic handle VI 283 and open sealed lid 2831, place rubber bottle plug 2881 and block by elastic baffle 2852 in the fixed sleeve 285, put into the assigned position along U-shaped deflector 287 with interim sample bottle 288, electric telescopic handle VII 2891 drives movable sleeve 286 and pushes down afterwards, it pushes down interim sample bottle 288 to make movable sleeve 286 press down, play fixed and sealed effect, electric telescopic handle V282 extension afterwards, it is sealed with sealed lid 2831 resets with electric telescopic handle VI 283, bleeder vent II 2851 intercommunication fixed sleeve 285 and gas-supply pipe 284 this moment, accomplish sample back electric telescopic handle VI 283 extension, it seals up to interim sample bottle 288 top completion to withstand rubber bottle plug 2881, each device resets after the completion.

When sampling operation or detection operation is performed on a new sampling point, air in the processing box 14, the adjusting chamber 18, the temporary sampling mechanism 28 and other devices needs to be pumped by the air pump II 30 every time, so that pollution to the new sampling caused by air residue in the last sampling is prevented.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.

Claims (7)

1. An automatic sampling and detecting device for volatile organic compounds in the atmosphere comprises a frame, wheels, an electric telescopic rod I, a purifying chamber, a processing box, a display screen, an upper cover plate, a movable cover plate, an adjusting chamber, an air pump I, an electric three-way adjusting valve, a telescopic hose, an in-tube sampling mechanism, a fixed tube, a lifting tube, a connecting hose, a sampling tube, a filter screen, a temporary sampling mechanism, a placing seat, an air pump II, an air outlet tube, an active carbon adsorption plate, a motor II, a motor III, a connecting plate, a fixed ring, a hemispherical fixture block, a fixed fixture block, a spring II and a limiting buckle, and is characterized in that the lower part of the frame is provided with the wheels, one side of each wheel is movably connected with one end of the electric telescopic rod I, the other end of the electric telescopic rod I is movably connected with the frame, the purifying chamber is arranged above the frame, the air outlet tube is arranged on one side of the purifying chamber, the active carbon adsorption plate is arranged inside the purifying chamber, the adjusting chamber and the two groups of same processing boxes are arranged above the purifying chamber, one side of the processing box is provided with a display screen, the other side of the processing box is provided with a temporary sampling mechanism, one side of the other processing box is provided with a placing seat, the placing seat is fixedly arranged above the purifying chamber, the middle of the processing box is provided with an adjusting chamber, an air pump II arranged on one side of the placing seat is communicated with the adjusting chamber and the purifying chamber through a pipeline, a movable cover plate is arranged above the processing box, an upper cover plate is arranged above the adjusting chamber and movably connected with the movable cover plate, an electric three-way adjusting valve is arranged on the upper cover plate, one end of the electric three-way adjusting valve is communicated with a flexible hose, the other end of the flexible hose is communicated with an in-pipe sampling mechanism, the other end of the electric three-way adjusting valve is communicated with a fixed pipe, a movable gear arranged above the fixed pipe is meshed with a gear arranged at the output end of a motor II, the movable gear arranged above the fixed pipe is internally meshed with the outer wall thread of a lifting pipe, the other end of the lifting pipe is communicated with a sampling pipe through a connecting hose, one side of the sampling pipe is fixedly provided with a connecting plate, connecting plate and fall way loose joint, the gear that establishes on one side of the connecting plate is connected with the gear engagement that the III outputs of motor were established, and sampling tube one end is equipped with fixed ring, and fixed mounting has fixed fixture block on the fixed ring, and movable mounting has the hemisphere fixture block on the fixed fixture block, and hemisphere fixture block one side is equipped with spring II, and fixed ring one side is equipped with the filter screen, and the spacing buckle card that establishes on one side of the filter screen is fixed between hemisphere fixture block and fixed fixture block.

2. The automatic sampling and detecting device for the volatile organic compounds in the atmosphere according to claim 1, characterized in that two sets of identical ball screws are arranged inside the adjusting chamber, one end of each ball screw is connected with the output end of the motor I, a guide rod is arranged between the two ball screws, the guide rods are fixedly arranged on the inner wall of the adjusting chamber, movable bases are arranged on the guide rods and the ball screws, electric telescopic rods III are fixedly arranged on two sides of each movable base, a fixing frame is arranged at the other end of each electric telescopic rod III, and an electric telescopic rod IV is arranged on each fixing frame.

3. The automatic sampling and detecting device for the volatile organic compounds in the atmosphere as claimed in claim 1, wherein the inside of the processing box is divided into an upper layer and a lower layer, the two layers are not communicated with each other, one layer above the processing box is a sampling chamber, the bottom of the sampling chamber is fixedly provided with a limiting base, one side of the limiting base is provided with a push plate, one side of the push plate is connected with one end of an electric telescopic rod II, the other end of the electric telescopic rod II is fixedly arranged on the inner wall of the sampling chamber, the other side of the sampling chamber is provided with a plurality of through holes, the outer sides of the through holes are fixedly provided with sealing rubber rings, a built-in sampling bottle is placed on the limiting base, an elastic telescopic rod I is arranged in the built-in sampling bottle, and one end of the elastic telescopic rod I is provided with a conical sealing plug; handle case lower floor and be the same detection room, the detection room is close to and is equipped with the admission section of thick bamboo on the inside of regulating chamber one side, and the admission section of thick bamboo is linked together with the regulating chamber, and the inside elastic telescopic rod II that is equipped with of admission section of thick bamboo, II one ends of elastic telescopic rod are equipped with cylindrical sealing plug, are equipped with bleeder vent I on the admission section of thick bamboo lateral wall, and admission section of thick bamboo one side is equipped with the detector mount pad, and the detection room bottom is linked together through intake pipe and clean room, is equipped with the check valve in the intake pipe.

4. The automatic sampling and detecting device for volatile organic compounds in the atmosphere according to claim 1, characterized in that the sampling mechanism in the tube comprises a movable tube, a connector, a locking rack, a guide plate, a connecting rod I, a connecting rod II, a spring telescopic sleeve I, a spring telescopic sleeve II, a movable ring, a push rod, an elastic buckle I, a pull rod, an elastic buckle II, a connecting rod III, a connecting rod IV, a spring I, a locking plate, a support rod and a limit plate, wherein one end of the movable tube is provided with the connector, the movable tube is provided with the locking rack and the guide plate, the connector is movably provided with a plurality of connecting rods I, the other end of the connecting rod I is movably linked with the connecting rod II, the other end of the connecting rod II is movably linked with the spring telescopic sleeve II, the other end of the spring telescopic sleeve II is movably linked with the movable ring, one end of the spring telescopic sleeve I on one side of the connecting rod I is movably linked with the movable ring on the other end of the spring telescopic sleeve I, activity ring movable mounting is in the activity outside of tubes, activity ring one side is equipped with the push rod, the push rod is placed on elasticity buckle I, I fixed mounting of elasticity buckle is on the activity pipe, be equipped with the limiting plate on the activity ring of corresponding locking rack one side, movable mounting has the locking board in the limiting plate, be equipped with spring I between limiting plate and the locking board, locking board one end active link connecting rod IV, connecting rod IV other end active link connecting rod III, III movable mounting of connecting rod is on the bracing piece, bracing piece fixed mounting is on the limiting plate, connecting rod III other end active link pull rod, the pull rod is placed in elasticity buckle II, II fixed mounting of elasticity buckle are on the activity pipe.

5. The automatic sampling and detecting device for volatile organic compounds in the atmosphere as claimed in claim 1, wherein the temporary sampling mechanism comprises a support, an electric telescopic rod V, an electric telescopic rod VI, a sealing cover, a gas pipe, a fixed sleeve, a gas vent II, an elastic baffle, a movable sleeve, a U-shaped guide plate, a temporary sampling bottle, a rubber bottle stopper, a sealing plate and an electric telescopic rod VII, the gas pipe is fixedly communicated with an adjusting chamber, the gas pipe is fixedly provided with the fixed sleeve, the fixed sleeve is provided with the gas vent II, the fixed sleeve is movably provided with the movable sleeve inside, the elastic baffle is arranged above the movable sleeve, the elastic baffle is fixedly arranged on the fixed sleeve, one side of the movable sleeve is fixedly connected with one end of the electric telescopic rod VII, the other end of the electric telescopic rod VII is fixedly arranged on the sealing plate, the sealing plate surrounds the electric telescopic rod VII and is fixedly arranged on one side of the fixed sleeve, fixed sleeve top is equipped with sealed lid, and sealed lid movable mounting is on electric telescopic handle VI, and electric telescopic handle VI fixed connection electric telescopic handle V one end, and electric telescopic handle V other end fixed mounting is on the support, and gas-supply pipe one side and fixed mounting are located to the support in the clean room top, and the gas-supply pipe below is equipped with the U-shaped deflector, and the interim sample bottle is placed in the U-shaped deflector, and the rubber bottle plug is placed on elastic baffle.

6. The automatic sampling and detecting device for volatile organic compounds in the atmosphere as claimed in claim 1, wherein a rubber pad is arranged on the connecting rod II.

7. The automatic sampling and detecting device for volatile organic compounds in the atmosphere according to claim 1, characterized in that a rubber ring is arranged at the bottom of the movable sleeve.

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