CN115046812A

CN115046812A - Waste gas sampling device for atmosphere pollution prevention and control

Info

Publication number: CN115046812A
Application number: CN202210896007.0A
Authority: CN
Inventors: 项宪亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-09-13

Abstract

The invention relates to the technical field of atmospheric sampling, in particular to a waste gas sampling device for preventing and treating atmospheric pollution, which comprises a lower shell, wherein the upper part of the lower shell is connected with an upper shell through threads, the lower part of the outer side surface of the lower shell is circumferentially connected with a plurality of L-shaped plates, the upper parts of the L-shaped plates are detachably provided with a fixed frame, a sampling adjusting mechanism is arranged between the upper shell and the fixed frame and used for adjusting the sampling position, and a gas sampling mechanism used for extracting and collecting gas is arranged in the lower shell. The sampling adjusting mechanism is matched with the gas sampling mechanism to sample the waste gas in the discharge pipeline for multiple times, meanwhile, the waste gas is sampled and collected by providing power through the flow of the waste gas, the sampling adjusting mechanism avoids that viscous particles and moist gas are attached to the sampling pipe in advance to influence the detection result of the waste gas when the waste gas is sampled, and the sampled waste gas is stored in a sealed manner to avoid the leakage of the sampled gas.

Description

Waste gas sampling device for atmosphere pollution prevention and control

Technical Field

The invention relates to the technical field of atmospheric sampling, in particular to a waste gas sampling device for atmosphere pollution prevention and control.

Background

Waste gas refers to the poisonous and harmful gas of discharge in production and the life process, and waste gas direct discharge can cause the pollution for the environment on every side, and breathes waste gas for a long time and can influence human health, for the waste gas that avoids producing causes the influence for living environment, need handle waste gas for this reason, makes it reach qualified standard and discharges, and the mill need regularly carry out the sample detection to the waste gas in the discharge tube way to adjust the processing of waste gas and make it reach qualified emission standard.

Present when taking a sample in the emission pipeline to the mill waste gas, because waste gas discharge is indefinite-time in the emission pipeline of mill, and the waste gas volume of discharging at every turn is also different, and the poisonous and harmful substance that contains when the waste gas volume is many can increase, need take a sample to this kind of condition for this reason, the gas flow velocity in the emission pipeline is indefinite simultaneously, can lead to gaseous discontinuity to strike sampling equipment and make it rock, sample for waste gas and cause inconvenience, and contain viscous particulate matter and humid gas in the waste gas, and viscous particulate matter and humid gas can adhere to in the sampling tube in advance, so can influence the testing result of waste gas, the structure that causes waste gas detection has great error.

Disclosure of Invention

The invention provides a waste gas sampling device for preventing and treating atmospheric pollution, which solves the problems in the background technology.

The invention is realized by the following technical scheme: the utility model provides a waste gas sampling device is used in atmosphere pollution prevention and cure, including lower casing, the bottom plate is installed to the lower part of casing down, the intake pipe has been inlayed on the eccentric position of bottom plate, the upper portion of casing has last casing through threaded connection down, the upper portion of casing is the stair structure down, the lower part circumference of inferior valve lateral surface is connected with a plurality of L shaped plate, the upper portion demountable installation of a plurality of L shaped plate has fixed frame, the installation shell has been inlayed on fixed frame's upper portion, the side of going up of installation shell is provided with the link, it is provided with sample adjustment mechanism to go up between casing and the fixed frame, sample adjustment mechanism is used for adaptation waste gas flow to produce corresponding power, the internal gas sampling mechanism that is used for carrying out the collection to the gas extraction of inferior valve, waste gas flow provides power for sample adjustment mechanism and carries out the sample collection to the waste gas of different velocity of flow.

In addition, particularly preferably, the sampling adjusting mechanism comprises a mounting rack, the mounting rack is slidably arranged on the upper portion of the lower shell, the lower portion of the mounting rack is connected with an annular ring, the outer side surface of the annular ring is connected with a plurality of rectangular frames, each rectangular frame is provided with a fan blade, the bottom of each rectangular frame is fixedly connected with a telescopic rod, a limiting ring is fixedly connected between the lower ends of the telescopic rods, the upper portion of each rectangular frame is provided with a wedge groove, a wedge block is slidably arranged in each rectangular frame, the upper side surface of the wedge block is in sliding fit with the bottom of the upper shell, the upper portion of the mounting rack is rotatably provided with a quartering frame, the quartering frame is rotatably connected with a plurality of thread sleeves in a circumferential direction, the upper portion of each thread sleeve is provided with a transmission gear, the bottom of the quartering frame is fixedly connected with a fixed gear, the fixed gear is positioned on the inner sides of the plurality of the transmission gears and is meshed with the transmission gears, and a driving piece is arranged in the mounting shell, the output shaft of the driving part is provided with a shaft lever, the lower end of the shaft lever passes through the mounting frame and the quartering frame and is rotationally connected with the quartering frame and the quartering frame, and the lower end of the shaft lever is provided with a groove-shaped roller.

Furthermore, it is particularly preferred that the length of the wedge-shaped block is smaller than the length of the telescopic rod for limiting the downward movement of the annular ring.

Furthermore, it is particularly preferred, gaseous sampling mechanism is including the carriage, the carriage is equipped with a plurality of, a plurality of carriage all sets up in the lower casing, the lower part of inferior valve internal side is equipped with a supporting bench, supporting bench both sides all set up to the inclined plane on the casing down, the rectangle slider is all installed to the medial surface of a plurality of carriage, a plurality of rectangle slider respectively with flute profile roller sliding fit, the arc apron is all installed through the hinge in the outside of a plurality of carriage, every arc apron passes through the buckle with adjacent carriage respectively and fixes, the lower part of every arc apron all is equipped with the sliding block, the joint has the sampling tube between adjacent carriage and the arc apron, all slide in every sampling tube and be equipped with spacing post, the threaded rod is all installed on the upper portion of every spacing post, all install the seal assembly who is used for sealing the sampling tube on every carriage.

In addition, it is especially preferred that the middle part of sampler barrel is equipped with annular protruding, and the recess with the protruding looks adaptation of annular on the sampler barrel is all seted up in the middle part of every carriage and arc apron, and annular protruding setting is in the recess of carriage and arc apron on the sampler barrel for the sampler barrel is spacing.

In addition, it is particularly preferable that the lower surface of the upper support table of the lower housing and the upper surface of the air inlet pipe are on the same horizontal plane for communication of the sampling tube and the air inlet pipe.

In addition, particularly preferably, the sealing assembly comprises two fixing frames, the two fixing frames are respectively connected to the upper side surface and the lower side surface of the sliding frame, each fixing frame is connected with a spring plate, each spring plate is respectively connected with the adjacent fixing frame in a sliding manner, a sealing cover is arranged in each fixing frame, each sealing cover is respectively detachably connected with the adjacent spring plate through a connecting piece, a cavity is formed in the middle of each sealing cover, a lower pressing block is arranged in the cavity of each sealing cover in a sliding manner, a plurality of wedge-shaped frames are arranged on the lower portion of each sealing cover in a circumferential sliding manner, the plurality of wedge-shaped frames are respectively in limit fit with the adjacent lower pressing blocks, each sealing cover is provided with an annular groove, a sealing frame is arranged in the annular groove of each sealing cover, the plurality of wedge-shaped frames are respectively in sliding fit with the adjacent sealing frames, and a plurality of supporting springs are fixedly connected between each sealing frame and the adjacent sealing cover, the lower part of each sealing frame is embedded with a sealing ring, and the upper and lower adjacent sealing covers are fixed through a connecting frame.

In addition, it is particularly preferable that the lower part of the lower pressing block is in a frustum structure and used for pushing the wedge-shaped frame to move.

In addition, it is particularly preferable that the lower part of the annular groove on each sealing cover is of an external conical surface structure, the upper part of the inner side surface of each sealing frame is of an internal conical surface structure, and each sealing frame is in limit fit with the annular groove of each sealing cover respectively and is used for limiting the downward movement of the sealing frame.

In addition, it is especially preferred, still including the guide arm, the guide arm is equipped with a plurality of, a plurality of guide arm is connected respectively in the lower part of casing lateral surface down, the outer end of a plurality of guide arm all is connected with and is used for spacing disc, all slide on every guide arm and be equipped with the locating rack, the directive wheel that is used for the direction is installed to equal rotary type on every locating rack, the periphery of directive wheel is rough surface, a frictional force for increasing with the pipeline, the outside of every guide arm all overlaps and has thrust spring, every thrust spring's both ends respectively with adjacent locating rack and every guide arm rigid coupling.

The invention has at least the following beneficial effects: the sampling adjusting mechanism is matched with the gas sampling mechanism to sample waste gas in a discharge pipeline for multiple times, the waste gas is used for impacting the rotation of the fan blades to provide power for the upward movement of the limiting column, the sampling cylinder is used for sampling and collecting the waste gas, when the limiting column moves upward and is far away from the sealing cover, the sealing cover is pushed to be matched and sealed with the sampling cylinder under the action of the spring plate to store the waste gas in the sampling cylinder, so that viscous particles and moist gas are prevented from being attached to the sampling tube in advance to influence the detection result of the waste gas, the sealing frame and a sealing ring on the sealing frame are used for sealing the sampling cylinder, the sampled waste gas is stored in the sampling cylinder, and the sample body in the sampling cylinder is prevented from leaking; the guide wheel is tightly contacted with the inner wall of the discharge pipeline by utilizing the thrust spring, so that the invention is more stable in the up-and-down process.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the sampling adjustment mechanism of the present invention.

Fig. 3 is a partial perspective structure schematic diagram of the sampling adjustment mechanism of the present invention.

FIG. 4 is a schematic structural diagram of a gas sampling mechanism according to the present invention.

Fig. 5 is a schematic perspective view of the gas sampling mechanism of the present invention.

FIG. 6 is a schematic perspective view of a sealing cap of the gas sampling mechanism of the present invention.

Number designation in the figures: 1-lower shell, 101-bottom plate, 102-air inlet pipe, 2-upper shell, 3-L-shaped plate, 4-fixed frame, 5-mounting shell, 6-sampling adjusting mechanism, 601-mounting rack, 602-annular ring, 603-rectangular frame, 604-fan blade, 605-spacing ring, 606-wedge-shaped block, 607-quartering, 608-thread sleeve, 609-transmission gear, 610-fixed gear, 611-driving piece, 612-shaft rod, 613-grooved roller, 7-gas sampling mechanism, 701-sliding rack, 7011-rectangular sliding block, 702-arc cover plate, 703-sliding block, 704-sampling cylinder, 705-spacing column, 706-threaded rod, 707-mounting rack, 708-spring plate, 709-sealing cover, 710-lower pressing block, 711-wedge-shaped frame, 712-sealing frame, 713-supporting spring, 714-sealing ring, 715-connecting frame, 8-guide rod, 9-positioning frame, 10-guide wheel and 11-thrust spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A waste gas sampling device for atmosphere pollution prevention and control is disclosed, as shown in figures 1-6, comprising a lower shell 1, a bottom plate 101 is arranged at the lower part of the lower shell 1, an air inlet pipe 102 is embedded at the eccentric position of the bottom plate 101, the upper part of the lower shell 1 is of a ladder structure, the upper part of the ladder of the lower shell 1 is provided with external threads, the upper part of the lower shell 1 is connected with an upper shell 2 through threads, the lower shell 1 and the upper shell 2 are connected through bolts, the lower shell 1 and the upper shell 2 are convenient to disassemble or assemble, four L-shaped plates 3 are welded at equal intervals at the lower part of the outer side surface of the lower shell 1, a fixed frame 4 is arranged at the upper parts of the four L-shaped plates 3 in a buckling connection mode, an assembling shell 5 is embedded at the upper part of the fixed frame 4, a hanging ring for hanging is arranged at the upper side surface of the assembling shell 5, a sampling adjusting mechanism 6 is arranged between the upper shell 2 and the fixed frame 4, be equipped with in the lower casing 1 and be used for extracting and carrying out the gas sampling mechanism 7 of collecting gas, sample adjustment mechanism 6 produces corresponding power according to the waste gas flow rate in the discharge line, makes sample adjustment mechanism 6 and the cooperation of gas sampling mechanism 7 open the sample cavity, collects and sealed storage the waste gas of different velocity of flow, accomplishes the sample work to waste gas.

The sampling adjusting mechanism 6 comprises a mounting frame 601, the mounting frame 601 is arranged on the upper part of the lower shell 1 in a sliding manner, the lower part of the mounting frame 601 is connected with an annular ring 602, the annular ring 602 is arranged on the lower side of the upper shell 2, the outer side surface of the annular ring 602 is connected with a plurality of rectangular frames 603, each rectangular frame 603 is provided with a fan blade 604, when exhaust gas in a discharge pipeline is discharged, the fan blades 604 are impacted to rotate, the fan blades 604 rotate to provide power for subsequent work, the bottom of each rectangular frame 603 is fixedly connected with a telescopic rod, the length of each wedge 606 is smaller than that of the telescopic rod, a limiting ring 605 is fixedly connected between the lower ends of the telescopic rods, the upper part of each rectangular frame 603 is provided with a wedge groove, a wedge 606 is arranged in each rectangular frame 603 in a sliding manner, the upper side surface of the wedge 606 is in sliding fit with the bottom of the upper shell 2, the fan blades 604 rotate to drive parts on the annular ring 602 to rotate through the rectangular frames 603 on the fan blades, the wedge block 606 rotates along with the wedge block, centrifugal force is generated in the rotation process of the wedge block 606, the wedge block 606 generates centrifugal force to move outwards to press the adjacent rectangular frame 603 to move downwards, the length of the wedge block 606 is smaller than that of the telescopic rod to limit the downward movement of the annular ring 602, the wedge block 606 is prevented from moving outwards to separate from the limit of the rectangular frame 603, the centrifugal force generated by the rotation of the wedge block 606 corresponds to the flow velocity of waste gas, a quartering frame 607 is rotatably arranged at the upper part of the mounting frame 601, threaded sleeves 608 are rotatably arranged at four corners of the quartering frame 607 respectively, the four threaded sleeves 608 are arranged in annular equal intervals, a transmission gear 609 is arranged at the upper part of each threaded sleeve 608, a fixed gear 610 meshed with the adjacent transmission gear 609 is fixedly connected to the middle part of the lower side surface of the quartering frame 607, a driving part 611 is arranged in the mounting shell 5, the driving part 611 adopts a speed reducing motor, a shaft lever 612 is arranged on an output shaft of the driving part 611, the lower end of the shaft 612 passes through and is rotatably connected to the mounting bracket 601 and the quarter bracket 607, and the lower end of the shaft 612 is mounted with a grooved roller 613.

The gas sampling mechanism 7 comprises a sliding frame 701, four sliding frames 701 are arranged on the sliding frame 701, four sliding frames 701 are all arranged in a lower shell 1, a support table is arranged at the lower part of the inner side surface of the lower shell 1, two sides of the support table on the lower shell 1 are all arranged to be inclined surfaces, rectangular sliding blocks 7011 are fixedly connected to the inner side surfaces of the four sliding frames 701, four rectangular sliding blocks 7011 are respectively in sliding fit with grooved rollers 613, arc-shaped cover plates 702 are respectively arranged outside the four sliding frames 701 through hinges, each arc-shaped cover plate 702 is respectively fixed with the adjacent sliding frame 701 through a buckle, a sliding block 703 is arranged at the lower part of each arc-shaped cover plate 702, a sampling cylinder 704 used for sampling and storing waste gas is clamped between the adjacent sliding frame 701 and the adjacent arc-shaped cover plate 702, an annular bulge is arranged at the middle part of the sampling cylinder 704, a groove matched with the annular bulge on the sampling cylinder 704 is arranged at the middle part of each sliding frame 701 and the arc-shaped cover plate 702, annular protrusions on the sampling cylinder 704 are arranged in grooves of the sliding frame 701 and the arc-shaped cover plate 702, the lower surface of a supporting table on the lower shell 1 and the upper surface of the air inlet pipe 102 are positioned on the same horizontal plane, a driving part 611 enables a grooved roller 613 to rotate 45 degrees through a shaft rod 612, the grooved roller 613 rotates to enable a rectangular sliding block 7011 of the grooved roller to drive parts on the grooved roller to rotate, the sliding block 703 on the sampling cylinder 704 rotates to move along the inclined plane of the supporting table, the sampling cylinder 704 moves upwards in the rotating process, the sampling cylinder 704 rotates 45 degrees and then is positioned right above the air inlet pipe 102, the sampling cylinder and the air inlet pipe are in a communicated state, a limiting column 705 is arranged in each sampling cylinder 704 in a sliding mode, in the process that the limiting column 705 moves upwards out of the sampling cylinder 704, waste gas in a discharge pipeline continuously enters the sampling cylinder 704 through the air inlet pipe 102, a threaded rod 706 is arranged on the upper portion of each limiting column 705, fixing frames 707 are arranged on the upper and lower side surfaces of each sliding frame 701, each fixing frame 707 is connected with a spring plate 708, each spring plate 708 is respectively connected with the adjacent fixing frame 707 in a sliding manner, a sealing cover 709 is arranged in each fixing frame 707, when the limiting column 705 moves upwards to be away from the sealing cover 709, the sealing cover 709 is pushed to be matched and sealed with the sampling cylinder 704 under the action of the spring plate 708 to store the waste gas in the sampling cylinder 704, so that sticky particles and humid gas are prevented from being attached to the sampling pipe in advance to influence the sampling detection result of the waste gas, each sealing cover 709 is respectively detachably connected with the adjacent spring plate 708 through a connecting piece, the sampling cylinder 704 is matched with the upper and lower adjacent sealing covers 709 to form a storage cavity for storing the waste gas, a cavity is formed in the middle of each sealing cover 709, a lower pressing block 710 is arranged in the cavity of each sealing cover 709 in a sliding manner, the lower part of each lower pressing block 710 is of a frustum structure, and a plurality of wedge-shaped frames 711 are arranged on the lower part of each sealing cover 709 in a sliding manner in the circumferential direction, the plurality of wedge-shaped frames 711 are respectively in limit fit with the adjacent lower pressing blocks 710, each sealing cover 709 is provided with an annular groove, the annular groove of each sealing cover 709 is provided with a sealing frame 712, the plurality of wedge-shaped frames 711 are respectively in sliding fit with the adjacent sealing frames 712, the lower part of the annular groove of each sealing cover 709 is in an outer conical surface structure, the upper part of the inner side surface of each sealing frame 712 is in an inner conical surface structure, each sealing frame 712 is respectively in limit fit with the annular groove of each sealing cover 709, four supporting springs 713 are fixedly connected between each sealing frame 712 and the adjacent sealing cover 709, the lower part of each sealing frame 712 is embedded with a sealing ring 714, the upper and lower adjacent sealing covers 709 are fixed through a connecting frame 715, when the sampling cylinder 704 is matched with the upper and lower adjacent sealing covers 709 to form a storage cavity state, the sealing frame 712 is tightly contacted with the outer annular surface of the sampling cylinder 704 under the action of the supporting springs 713, and sealing of the sampling cylinder 704 is accomplished by the sealing ring 714, which prevents a gap from existing between the sealing frame 712 and the sampling cylinder 704, which may cause leakage of the exhaust gas collected in the sampling cylinder 704.

When the invention is used, firstly, a user hangs the hook of the lifting device on the hanging ring of the mounting shell 5, the invention is put into a vertical exhaust pipeline of a factory, then the user emits a pull rope with a proper length through the lifting device, the invention moves downwards to a proper position in the exhaust pipeline, when exhaust gas is discharged in the exhaust pipeline, a large amount of exhaust gas is discharged to impact the fan blades 604 to rotate, the fan blades 604 rotate to enable the mounting rack 601 to rotate through the rectangular frame 603 and the annular ring 602, the rectangular frame 603 rotates to enable the wedge-shaped block 606 in the rectangular frame to generate centrifugal force to move outwards, the rectangular frame 603 is squeezed to enable parts on the rectangular frame to move downwards, the telescopic rod is compressed, the mounting rack 601 moves downwards to enable the threaded sleeves 608 to move downwards through the four-part rack 607, one threaded sleeve 608 moves downwards to form threaded limit fit with the threaded rod 706 on the upper side of the air inlet pipe 102, the fixed gear mounting rack 610 on which the rectangular frame 601 rotates to enable the transmission gear 609 to rotate, the transmission gear 609 rotates to drive the threaded sleeve 608 on the transmission gear to rotate, so that the threaded rod 706 matched with the transmission gear moves upwards, the threaded rod 706 moves upwards to drive the limiting column 705 on the threaded rod to move upwards, after the limiting column 705 moves upwards out of the sampling cylinder 704, the limiting column 705 moves upwards to release limiting of the sealing cover 709, the sealing cover 709 moves under the action of the spring plate 708 to seal the sampling cylinder 704, sampling and storage of waste gas are completed through matching of the sampling cylinder 704 and the sealing cover 709, after the sealing cover 709 is matched with the sampling cylinder 704, the sealing ring 714 moves downwards under the action of the supporting spring 713 to be in contact with the outer surface of the sampling cylinder 704, the sampling cylinder 704 is sealed, and leakage of the waste gas in the sampling cylinder 704 is avoided.

When the waste gas needs to be sampled again, a user starts the driving piece 611 to rotate the grooved roller 613 by 45 degrees through the shaft 612 and close the grooved roller 613, the grooved roller 613 rotates to enable parts on the grooved roller 613 to rotate through the rectangular sliding block 7011 so as to enable the next sampling cylinder 704 to rotate to the upper side of the air inlet pipe 102 and be communicated with the air inlet pipe, when the waste gas in the exhaust pipeline is discharged again in a large amount, the waste gas is sampled again through the sampling cylinder 704, the process is repeated continuously, after four times of sampling are completed, the user takes the device out of the exhaust pipeline, releases the fixing of the L-shaped plate 3 and the fixed frame 4, separates the lower shell 1 from the upper shell 2, releases the fixing of the sliding frame 701 and the arc-shaped cover plate 702, releases the limit of the sealing cover 709 and the connecting piece on the spring plate 708, takes out the sampling cylinder 704 and replaces the sampling cylinder 704, and places a new sampling cylinder 704 in the sliding frame 701, the user resets and fixes through the arc-shaped cover plate 702 to complete the limit of the sampling tube 704, then the user presses the lower pressing blocks 710 on the upper and lower sides to close, the lower pressing blocks 710 on the upper and lower sides close to press the adjacent wedge-shaped frames 711 to move outwards respectively, the wedge-shaped frames 711 move outwards to push the sealing frames 712 on the upper and lower sides to move away from each other, the supporting spring 713 is compressed along with the supporting spring, at the moment, the sealing rings 714 on the upper and lower sides are far away from the sampling tube 704, the user enables the sealing cover 709 to move towards the fixing frame 707 to close, the spring plate 708 is compressed along with the supporting spring 713, and the connector on the spring plate 708 is engaged with the sealing cap 709, and then the user rotates the corresponding threaded rod 706 to remove it from the threaded sleeve 608, and inserts the retaining post 705 on the threaded sleeve 608 into the sampling tube 704, the sealing cover 709 is limited by the limiting column 705, so that the waste gas sampling can be conveniently carried out by using the device of the invention next time, and then the sampling cylinder 704 with the waste gas is sent to be detected.

When the amount of exhaust gas discharged from the discharge pipe is small, the rotation speed of the fan blades 604 is not enough to enable the sliding block 703 to generate centrifugal force to press the rectangular frame 603 to move downwards, so that the exhaust gas in the discharge pipe cannot be sampled, and when the amount of exhaust gas discharged from the discharge pipe is enough to enable the exhaust gas collecting device to collect exhaust gas, the exhaust gas collecting device can complete the collection and storage of the exhaust gas at different flow rates by adapting to different working states through the exhaust gas at different flow rates.

Example 2

On the basis of embodiment 1, as shown in fig. 1, the exhaust gas purification device further comprises four guide rods 8, the four guide rods 8 are connected to the lower portion of the outer side surface of the lower shell 1 through bolts, the four guide rods 8 are arranged in the circumferential direction at equal intervals, the outer ends of the four guide rods 8 are connected with discs for limiting, each guide rod 8 is provided with a positioning frame 9 in a sliding mode, each positioning frame 9 is rotatably provided with a guide wheel 10 for guiding, the circumferential surface of each guide wheel 10 is a rough surface and used for increasing friction force with a pipeline, a thrust spring 11 is sleeved on the outer side of each guide rod 8, the guide wheels 10 are in close contact with the inner wall of the exhaust pipeline through the thrust springs 11 to guide the vertical movement of the exhaust gas purification device, the exhaust gas purification device is more stable in the vertical movement process, and two ends of each thrust spring 11 are fixedly connected with the adjacent positioning frames 9 and the guide rods 8.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a waste gas sampling device for atmosphere pollution prevention and cure, including lower casing (1), bottom plate (101) is installed to the lower part of lower casing (1), inlay intake pipe (102) on the eccentric position of bottom plate (101), the upper portion of lower casing (1) has upper casing (2) through threaded connection, the upper portion of lower casing (1) is the stair structure, the lower part circumference of lower casing (1) lateral surface is connected with a plurality of L shaped plate (3), the upper portion demountable installation of a plurality of L shaped plate (3) has fixed frame (4), the upper portion of fixed frame (4) is inlayed installation shell (5), the last side of installation shell (5) is provided with the link, the utility model is characterized in that, still including sample adjustment mechanism (6), sample adjustment mechanism (6) sets up between upper casing (2) and fixed frame (4), sample adjustment mechanism (6) adaptation waste gas flow produces corresponding power, be equipped with in lower casing (1) and be used for carrying out the gas sampling mechanism (7) of collecting to the gas extraction, waste gas flows and provides power for sample adjustment mechanism (6), and sample adjustment mechanism (6) provide power for gas sampling mechanism (7) and take a sample to the waste gas of different velocity of flow and collect.

2. The exhaust gas sampling device for atmospheric pollution control according to claim 1, wherein the sampling adjustment mechanism (6) comprises a mounting frame (601), the mounting frame (601) is slidably disposed on the upper portion of the lower housing (1), an annular ring (602) is connected to the lower portion of the mounting frame (601), the outer side surface of the annular ring (602) is connected to a plurality of rectangular frames (603), each rectangular frame (603) is provided with a fan blade (604), the bottom of each rectangular frame (603) is fixedly connected to a telescopic rod, a limiting ring (605) is fixedly connected between the lower ends of the telescopic rods, the upper portion of each rectangular frame (603) is provided with a wedge groove, each rectangular frame (603) is internally provided with a wedge (606) in a sliding manner, the upper side surface of the wedge (606) is in sliding fit with the bottom of the upper housing (2), and a quartering (607) is rotatably disposed on the upper portion of the mounting frame (601), circumferential rotation type is connected with a plurality of thread bush (608) on quartering frame (607), drive gear (609) are all installed on the upper portion of every thread bush (608), the bottom rigid coupling of quartering frame (607) has fixed gear (610), fixed gear (610) are located the inboard of a plurality of drive gear (609) and mesh rather than, install driving piece (611) in installation shell (5), install axostylus axostyle (612) on the output shaft of driving piece (611), the lower extreme of axostylus axostyle (612) passes mounting bracket (601) and quartering frame (607) and is connected rather than the two rotation, slotted roller (613) is installed to the lower extreme of axostylus axostyle (612).

3. An atmospheric pollution control exhaust gas sampling device as defined in claim 2, wherein the wedge (606) is shorter than the telescopic rod for limiting the downward movement of the annular ring (602).

4. An exhaust gas sampling device for atmospheric pollution control as defined in claim 2, wherein the gas sampling mechanism (7) comprises a plurality of sliding frames (701), the sliding frames (701) are provided, the plurality of sliding frames (701) are all disposed in the lower housing (1), a support platform is disposed at the lower portion of the inner side surface of the lower housing (1), inclined surfaces are disposed at both sides of the support platform on the lower housing (1), rectangular sliding blocks (7011) are mounted at the inner side surfaces of the plurality of sliding frames (701), the plurality of rectangular sliding blocks (7011) are respectively in sliding fit with the grooved rollers (613), arc-shaped cover plates (702) are respectively mounted at the outer portions of the plurality of sliding frames (701) through hinges, each arc-shaped cover plate (702) is respectively fixed to the adjacent sliding frame (701) through a buckle, a sliding block (703) is disposed at the lower portion of each arc-shaped cover plate (702), a sampling cylinder (704) is clamped between the adjacent sliding frames (701) and the arc-shaped cover plates (702), limiting columns (705) are arranged in each sampling cylinder (704) in a sliding mode, threaded rods (706) are mounted on the upper portions of the limiting columns (705), and sealing assemblies used for sealing the sampling cylinders (704) are mounted on each sliding frame (701).

5. An exhaust gas sampling device for preventing and treating atmospheric pollution as recited in claim 4, wherein said sampling cylinder (704) has a central portion formed with a circular protrusion, each of said sliding frame (701) and said arc-shaped cover plate (702) has a central portion formed with a groove adapted to said circular protrusion of said sampling cylinder (704), and said circular protrusion of said sampling cylinder (704) is disposed in said grooves of said sliding frame (701) and said arc-shaped cover plate (702) for limiting said sampling cylinder (704).

6. An exhaust gas sampling device for atmospheric pollution control as defined in claim 4, wherein the lower surface of the upper support of the lower casing (1) is located at the same level as the upper surface of the intake pipe (102) for the sampling cylinder (704) to communicate with the intake pipe (102).

7. The exhaust gas sampling device for preventing and treating atmospheric pollution as recited in claim 4, wherein the sealing assembly comprises two fixing frames (707), two fixing frames (707) are provided, two fixing frames (707) are respectively connected to the upper and lower side surfaces of the sliding frame (701), each fixing frame (707) is connected with a spring plate (708), each spring plate (708) is respectively connected with the adjacent fixing frame (707) in a sliding manner, a sealing cover (709) is provided in each fixing frame (707), each sealing cover (709) is respectively connected with the adjacent spring plate (708) in a detachable manner through a connecting piece, a cavity is provided in the middle of each sealing cover (709), a lower pressing block (710) is arranged in the cavity of each sealing cover (709) in a sliding manner, a plurality of wedge-shaped frames (711) are arranged on the lower part of each sealing cover (709) in a circumferential sliding manner, and a plurality of wedge-shaped frames (711) are respectively in limit fit with the adjacent lower pressing blocks (710), the annular groove has all been seted up on every sealed lid (709), the annular groove of every sealed lid (709) all is equipped with sealed frame (712), a plurality of wedge frame (711) respectively with adjacent sealed frame (712) sliding fit, every sealed frame (712) respectively with adjacent sealed lid (709) between the rigid coupling have a plurality of supporting spring (713), sealing washer (714) have all been inlayed to the lower part of every sealed frame (712), it is fixed through link (715) between the adjacent sealed lid (709) from top to bottom.

8. An exhaust gas sampling device as claimed in claim 7, wherein the lower part of the lower pressure block (710) is of a frustum structure for pushing the wedge frame (711) to move.

9. An exhaust gas sampling device for atmospheric pollution control as defined in claim 7, wherein the lower portion of the annular groove of each sealing cap (709) is of an external conical surface structure, the upper portion of the inner side surface of each sealing frame (712) is of an internal conical surface structure, and each sealing frame (712) is in limit fit with the annular groove of each sealing cap (709) respectively for limiting the downward movement of the sealing frame (712).

10. The exhaust gas sampling device for preventing and controlling atmospheric pollution according to claim 1, characterized by further comprising a plurality of guide rods (8), wherein the plurality of guide rods (8) are respectively connected with the lower part of the outer side surface of the lower shell (1), the outer ends of the plurality of guide rods (8) are respectively connected with a disk for limiting, each guide rod (8) is provided with a positioning frame (9) in a sliding manner, each positioning frame (9) is rotatably provided with a guide wheel (10) for guiding, the circumferential surface of each guide wheel (10) is a rough surface for increasing the friction force with a pipeline, the outer side of each guide rod (8) is sleeved with a thrust spring (11), and the two ends of each thrust spring (11) are fixedly connected with the adjacent positioning frame (9) and the guide rod (8) respectively.