Environment-friendly waste gas detection device and detection method

Abstract

The invention discloses an environment-friendly waste gas detection device, and relates to the technical field of waste gas detection. By starting a servo motor a, a moving cylinder drives a semi-sphere to slide in a spiral stepped groove, and when the moving cylinder moves to a rotating corner of the spiral stepped groove, the moving cylinder rotates by 60 degrees, so that a circular hole is attached to an air inlet until waste gas exists in three groups of detection cavities; waste gas at different stages in the exhaust pipe can be detected through the three groups of detection cavities, and the types, concentration and emission amount of pollutants in the waste gas can be accurately known, so that targeted measures are taken in time, the pollution of the waste gas to the environment is reduced, and meanwhile, the accuracy and efficiency of waste gas detection are further improved; the movable cylinder continuously moves towards one side, so that the blocking plates on the two sides are attached, the gas inlet can be effectively blocked, and the situation that when the detector detects the waste gas, the waste gas in the exhaust pipe enters the detection cavity, and detection errors are caused is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas detection, and in particular to an environmentally friendly waste gas detection device and a detection method. Background Art

[0002] In the process of chemical production, it is easy to produce various waste gases that are harmful to the environment, so the chemical waste gas needs to be treated before discharge. In order to effectively treat the components in the waste gas that are polluting to the environment, it is necessary to detect the waste gas before discharge, so as to carry out targeted treatment of the waste gas and ensure the treatment of the waste gas.

[0003] An existing patent (publication number: CN 115980274 A) discloses an environmentally friendly exhaust gas detection device and detection method, which cleans one end of an impurity removal component through a first end cleaning component and cleans the other end of the impurity removal component through a second end cleaning component, thereby realizing self-cleaning of the cleaning component, ensuring that the impurity removal component is always in a clean state, thereby ensuring the cleaning effect of the cleaning component on the detector.

[0004] However, the above technical solution still has certain defects. The detector of the device directly contacts the exhaust gas in the exhaust pipe for detection. The exhaust gas inside the pipe flows quickly. During detection, the exhaust gas can only be detected in a single stage, which easily leads to poor detection of the concentration and type of pollutants in the exhaust gas, resulting in low accuracy and efficiency in exhaust gas detection. Therefore, an environmentally friendly exhaust gas detection device and detection method are proposed. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide an environmentally friendly exhaust gas detection device and detection method to solve the technical problems raised in the above background.

[0006] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly exhaust gas detection device, comprising an exhaust pipe, a detection component is provided inside the exhaust pipe, a cleaning component is provided inside the detection component, and a discharge component is provided on one side of the cleaning component;

[0007] The detection component includes a fixed cylinder extending into the exhaust pipe, the inner wall of the fixed cylinder is provided with a spiral step groove, the bottom end of the fixed cylinder is provided with an air inlet, and the inner wall of the fixed cylinder is slidably connected to a moving cylinder, three groups of detection chambers are provided inside the moving cylinder, and a semicircular ball slidably connected to the spiral step groove is provided on the surface of the moving cylinder, a circular hole is provided on one side of the three groups of detection chambers, and a detector is installed on the inner wall of the detection chamber, an air storage groove is provided on the side of the fixed cylinder away from the moving cylinder, a piston rod is slidably connected to the air storage groove, a spring a fixedly connected to the piston rod is provided on one side of the air storage groove, and a connecting telescopic tube is provided at the bottom end of the side of the air storage groove away from the spring a, and two groups of blocking plates are fixedly connected to one end of the connecting telescopic tube away from the air storage groove, a fixed horizontal plate is welded to one side of the exhaust pipe surface, a servo motor a is fixedly connected to the top of the fixed horizontal plate, and a bevel gear a is fixedly connected to the output end of the servo motor a, and a meshing bevel gear b is provided on the top side of the bevel gear a, a threaded screw is rotatably connected to the center of the bevel gear b, and a fixed circular plate is welded to one end of the threaded screw.

[0008] As an optimal technical solution of an environmentally friendly exhaust gas detection device of the present invention, connecting moving blocks are fixed on both sides of the end of the piston rod, a moving groove is opened inside the fixed cylinder, and a clamping block is slidably connected inside the fixed cylinder, the connecting moving block is slidably connected to the moving groove, a wire rope is fixedly connected to one side of the clamping block, and a spring b fixedly connected to one side of the clamping block is sleeved on the surface of the wire rope.

[0009] As an optimal technical solution for an environmentally friendly exhaust gas detection device of the present invention, a steering shaft for changing the extension direction of the rope is provided on the surface of the rope, one end of the rope away from the block is fixedly connected to a round shaft, one side of the round shaft is fixedly connected to a spring c, and the side of the round shaft away from the spring c extends to one end of the spiral step groove, and the two groups of blocking plates are arranged directly below the air inlet.

[0010] As an optimal technical solution for an environmentally friendly exhaust gas detection device of the present invention, the cleaning component includes a vertical plate welded to one side of the top of a fixed horizontal plate, a servo motor b is installed on one side of the vertical plate, the output end of the servo motor b is fixedly connected to a round block, a fixed shaft is clamped inside the round block, a reciprocating screw a is fixedly connected to the end of the fixed shaft away from the round block, a belt is rotatably connected to one side of the surface of the reciprocating screw a, and two groups of reciprocating screws b are rotatably connected to the inner wall of the belt away from the reciprocating screw a.

[0011] As an optimal technical solution of an environmentally friendly exhaust gas detection device of the present invention, the ends of the surfaces of the reciprocating screw a and the reciprocating screw b away from the belt are rotatably connected to a cleaning brush, and the ends of the reciprocating screw a and the reciprocating screw b away from the belt are rotatably connected to a triangular plate, the three groups of detection cavities are fixedly connected to the inside of the detection cavities, and the inside of the detection cavities are slidably connected to an arc plate, one side of the arc plate is fixedly connected to a spring d, one end of the spring d of one group away from the arc plate is fixedly connected to one group of detection cavities, and the other two groups of springs d are fixedly connected to the ends of the springs d away from the arc plate. Long plates are fixedly connected.

[0012] As an optimal technical solution for an environmentally friendly exhaust gas detection device of the present invention, a square plate is fixedly connected to one side of the cleaning brush, and the cleaning brush is attached to the detection cavity and the filter surface. A rotating plate is rotatably connected inside the square plate, and a base rod is provided between the square plate and the rotating plate.

[0013] As an optimal technical solution for an environmentally friendly exhaust gas detection device of the present invention, the three groups of arc-shaped plates are fixedly connected on both sides thereof with limit springs, one end of the limit spring is fixedly connected with a movable plate, and the end of the movable plate away from the limit spring is rotatably connected with a ball.

[0014] As an optimal technical solution of an environmentally friendly exhaust gas detection device of the present invention, a spring telescopic rod is fixedly connected inside the fixed shaft, a bevel block is fixedly connected to the top of the spring telescopic rod, the bevel block is slidably connected to the fixed shaft, and the top of the bevel block passes through one side of the surface of the fixed shaft, and a slot that matches the bevel block is opened inside the round block.

[0015] As an optimal technical solution of an environmentally friendly exhaust gas detection device of the present invention, the discharge component includes a top rod fixedly connected to one side of a cleaning brush, six groups of baffles are rotatably connected inside the fixed circular plate, and the six groups of baffles are rotatably connected inside the six groups of baffles. A torsion spring is provided on one side of the surface of the arc shaft, and the arc shaft is fixedly connected to the fixed circular plate, and a leakage groove is opened in the fixed circular plate.

[0016] A detection method for an environmental exhaust gas detection device comprises the following steps:

[0017] Step 1: Start the servo motor a to drive the screw to rotate, so that the moving cylinder moves and rotates through the spiral step groove. When the moving cylinder rotates on one side, a group of circular holes can overlap with the air inlet, so that the exhaust gas inside the exhaust pipe enters the detection chamber, and then the exhaust gas at different stages enters the detection chamber in turn for detection;

[0018] Step 2: After the test is completed, clean the inner wall of the test chamber and the filter surface through the cleaning component;

[0019] Step 3: The cleaned impurities are discharged from the inside of the moving cylinder through the discharge assembly.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] 1. The present invention starts the servo motor a to make the threaded screw drive the moving cylinder to move, and the moving cylinder drives the semi-circular ball to slide inside the spiral step groove. When the moving cylinder moves to the rotation corner of the spiral step groove, the moving cylinder rotates sixty degrees inside the fixed cylinder to make the circular hole fit with the air inlet until exhaust gas exists inside the three groups of detection chambers. The exhaust gas at different stages inside the exhaust pipe can be detected through the three groups of detection chambers, and the type, concentration and emission of pollutants in the exhaust gas can be accurately understood, so as to take targeted measures in time to reduce the pollution of the environment by the exhaust gas, and at the same time further improve the accuracy and efficiency of the exhaust gas detection. The moving cylinder continues to move toward one side of the inner wall of the fixed cylinder, so that the blocking plates on both sides move relatively until they fit together, which can effectively block the air inlet, and prevent the exhaust gas inside the exhaust pipe from entering the detection chamber when the detector detects the exhaust gas, causing detection errors.

[0022] 2. The present invention drives the reciprocating screw a to move synchronously when the moving cylinder is reset, and the reciprocating screw a drives the fixed shaft to move, so that the round block and the fixed shaft can be fixed. At this time, the servo motor b is started to make the three groups of cleaning brushes slide inside the detection chamber, so that the arc plate blocks the circular hole to prevent impurities in the exhaust gas from falling out of the circular hole when the detection chamber is cleaned. The exhaust gas impurities adhered to the detection chamber and the filter surface are cleaned by the cleaning brush, which can ensure that the detector accurately measures the pollutant concentration in the gas and provides more accurate detection results. At the same time, the impurities are cleaned to avoid clogging of the filter due to long-term use, so that the exhaust gas cannot enter the detection chamber well.

[0023] 3. When the cleaning brush of the present invention moves toward one side of the fixed circular plate for cleaning, the push rod is pressed against the baffle and pushed, so that the baffle is opened by rotating to one side through the arc axis, and then the impurities cleaned by the cleaning brush can fall from the leakage groove, so as to better maintain the cleanliness of the inside of the detection chamber and further improve the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the overall assembly of the present invention;

[0025] Figure 2 It is a three-dimensional schematic diagram of the interior of the exhaust pipe of the present invention;

[0026] Figure 3 It is a partial three-dimensional cross-sectional view of the fixing tube of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5It is a three-dimensional schematic diagram of the interior of the fixing cylinder of the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 It is a three-dimensional schematic diagram of the connecting telescopic tube of the present invention;

[0031] Figure 8 It is a three-dimensional schematic diagram of the moving cylinder of the present invention;

[0032] Fig. 9 It is a three-dimensional schematic diagram of the interior of the moving cylinder of the present invention;

[0033] Fig.10 For the present invention Fig. 9 Enlarged view of point C in the middle;

[0034] Fig.11 It is a three-dimensional schematic diagram of the cleaning component of the present invention;

[0035] Fig.12 It is a three-dimensional schematic diagram of the cleaning brush of the present invention;

[0036] Fig.13 It is a three-dimensional schematic diagram of the interior of the curved plate of the present invention;

[0037] Fig.14 It is a three-dimensional schematic diagram of the interior of the fixed circular plate of the present invention;

[0038] Fig.15 It is a three-dimensional schematic diagram of the interior of the round block of the present invention.

[0039] In the figure: 100, exhaust pipe;

[0040] 200, detection assembly; 210, fixed cylinder; 211, spiral stepped groove; 212, air inlet; 220, moving cylinder; 221, detection chamber; 222, round hole; 223, detector; 230, semicircular ball; 240, air storage tank; 250, piston rod; 260, spring a; 270, connecting telescopic tube; 271, blocking plate; 280, connecting moving block; 281, moving groove; 290, block; 2910, wire rope; 2911, steering shaft; 2920, spring b; 2930, round shaft; 2931, spring c; 2940, fixed horizontal plate; 2950, ​​servo motor a; 2960, bevel gear a; 2970, bevel gear b; 2980, threaded screw; 2990, fixed circular plate;

[0041] 300, cleaning assembly; 310, vertical plate; 320, servo motor b; 330, round block; 331, slot; 340, reciprocating screw a; 341, fixed shaft; 342, spring telescopic rod; 343, inclined block; 350, belt; 360, reciprocating screw b; 370, cleaning brush; 371, triangular plate; 372, filter; 380, arc plate; 390, spring d; 391, long plate; 3910, square plate; 3920, rotating plate; 3921, base rod; 3930, limit spring; 3940, movable plate; 3950, ball bearing;

[0042] 400, discharge assembly; 410, ejector rod; 420, baffle; 430, arc-shaped shaft; 440, torsion spring; 450, drain groove. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] The following describes an embodiment of the present invention based on its overall structure.

[0045] An environmentally friendly exhaust gas detection device, such as Figure 1-15 As shown, it includes an exhaust pipe 100, a detection component 200 is arranged inside the exhaust pipe 100, a cleaning component 300 is arranged inside the detection component 200, and a discharge component 400 is arranged on one side of the cleaning component 300;

[0046] The detection assembly 200 includes a fixed cylinder 210 extending into the exhaust pipe 100, the inner wall of the fixed cylinder 210 is provided with a spiral step groove 211, the bottom of the fixed cylinder 210 is provided with an air inlet 212, and the inner wall of the fixed cylinder 210 is slidably connected to a moving cylinder 220, three groups of detection cavities 221 are provided inside the moving cylinder 220, and a semicircular ball 230 slidably connected to the spiral step groove 211 is provided on the surface of the moving cylinder 220, a circular hole 222 is provided on one side of the three groups of detection cavities 221, and a detector 223 is installed on the inner wall of the detection cavity 221, and the fixed cylinder 210 is provided with a spiral step groove 211. An air storage tank 240 is provided on the side of the cylinder 210 away from the moving cylinder 220, and a piston rod 250 is slidably connected to the inside of the air storage tank 240. A spring a260 fixedly connected to the piston rod 250 is provided on one side of the air storage tank 240, and a connecting telescopic tube 270 is provided at the bottom end of the side of the air storage tank 240 away from the spring a260. Two sets of blocking plates 271 are fixedly connected to the end of the connecting telescopic tube 270 away from the air storage tank 240. A fixed horizontal plate 2940 is welded on one side of the surface of the exhaust pipe 100, and a servo motor a is fixedly connected to the top of the fixed horizontal plate 2940. 2950, ​​the output end of the servo motor a2950 is fixedly connected with a bevel gear a2960, and a meshing bevel gear b2970 is provided on one side of the top of the bevel gear a2960, and a threaded screw 2980 is rotatably connected to the center of the bevel gear b2970, and a fixed circular plate 2990 is welded to one end of the threaded screw 2980, and a connecting moving block 280 is fixed on both sides of the end of the piston rod 250, and a moving groove 281 is opened inside the fixed cylinder 210, and a clamping block 290 is slidably connected inside the fixed cylinder 210, and the connecting moving block 280 slides with the moving groove 281 Connection, a wire rope 2910 is fixedly connected to one side of the block 290, a spring b2920 fixedly connected to one side of the block 290 is sleeved on the surface of the wire rope 2910, a steering shaft 2911 for changing its extension direction is provided on the surface of the wire rope 2910, one end of the wire rope 2910 away from the block 290 is fixedly connected to a round shaft 2930, a spring c2931 is fixedly connected to one side of the round shaft 2930, and the side of the round shaft 2930 away from the spring c2931 extends to one end of the spiral step groove 211, and two sets of blocking plates 271 are arranged directly below the air inlet 212.

[0047] By starting the servo motor a2950 to drive the bevel gear a2960 to rotate, the bevel gear a2960 drives the bevel gear b2970 to rotate, the bevel gear b2970 drives the threaded screw 2980 to move toward the side of the fixed cylinder 210, the threaded screw 2980 drives the moving cylinder 220 to move synchronously, the moving cylinder 220 drives the semi-circular ball 230 to slide inside the spiral step groove 211, when the moving cylinder 220 and the semi-circular ball 230 slide a certain distance, a group of circular holes 222 will overlap with the air inlet 212, so that the exhaust gas inside the exhaust pipe 100 enters the first group of detection chambers 221, when the moving cylinder 220 moves to the spiral step groove 2 11, it will drive the moving cylinder 220 to rotate sixty degrees inside the fixed cylinder 210, so that the circular hole 222 inside the second group of detection chambers 221 fits with the air inlet 212, until exhaust gas is present inside the three groups of detection chambers 221. Through the three groups of detection chambers 221, the exhaust gas at different stages inside the exhaust pipe 100 can be detected, and the type, concentration and emission of pollutants in the exhaust gas can be accurately understood, so as to take targeted measures in time to reduce the pollution of the exhaust gas to the environment, and at the same time further improve the accuracy and efficiency of the exhaust gas detection. The moving cylinder 220 continues to move toward the inner wall of the fixed cylinder 210 until the moving cylinder 220 fits with the piston rod 250 and squeezes, so that the gas inside the gas storage tank 240 enters the connecting telescopic tube 270, and the plugging plates 271 on both sides are relatively moved by connecting the telescopic tube 270 until they fit together, which can effectively block the air inlet 212, and prevent the exhaust gas inside the exhaust pipe 100 from entering the detection chamber 221 when the detector 223 detects the exhaust gas, causing errors in the detection. At the same time, when the piston rod 250 moves, it drives the connecting moving block 280 to move synchronously, so that the connecting moving block 280 fits the arc surface on one side of the clamping block 290, so that the clamping block 290 squeezes the spring b2920 and moves away from the connecting moving block 280 slides on one side until the connecting moving block 280 and the clamping block 290 are fixed by the action of the spring b2920. At this time, the servo motor a2950 is reversed to make the moving cylinder 220 drive the semi-circular ball 230 to reset. When the semi-circular ball 230 is reset, the surface will fit one end of the circular shaft 2930 and squeeze it, so that the circular shaft 2930 squeezes the spring c2931 and pulls the rope 2910. The rope 2910 will pull the clamping block 290 to move, so that the connecting moving block 280 drives the piston rod 250 to reset under the action of the spring a260, so as to facilitate the next detection operation of the exhaust gas inside the exhaust pipe 100.

[0048] Please refer to Figures 1 to 14The cleaning assembly 300 includes a vertical plate 310 welded to one side of the top of the fixed horizontal plate 2940, a servo motor b320 is installed on one side of the vertical plate 310, a round block 330 is fixedly connected to the output end of the servo motor b320, a fixed shaft 341 is clamped inside the round block 330, and a reciprocating screw a340 is fixedly connected to one end of the fixed shaft 341 away from the round block 330, a belt 350 is rotatably connected to one side of the surface of the reciprocating screw a340, and two groups of reciprocating screws b360 are rotatably connected to the side of the inner wall of the belt 350 away from the reciprocating screw a340, a cleaning brush 370 is rotatably connected to the end of the reciprocating screw a340 and the reciprocating screw b360 away from the belt 350, and a triangular plate 371 is rotatably connected to the end of the reciprocating screw a340 and the reciprocating screw b360 away from the belt 350, and a filter screen 372 is fixedly connected to the inside of the three groups of detection chambers 221, And the inside of the detection cavity 221 is slidably connected with an arc plate 380, one side of the arc plate 380 is fixedly connected with a spring d390, one end of a group of springs d390 away from the arc plate 380 is fixedly connected to one group of detection cavities 221, and the other two groups of springs d390 are fixedly connected to the long plate 391 at one end away from the arc plate 380, one side of the cleaning brush 370 is fixedly connected with a square plate 3910, and the cleaning brush 370 is attached to the surface of the detection cavity 221 and the filter screen 372, the inside of the square plate 3910 is rotatably connected with a rotating plate 3920, and a base rod 3921 is provided between the square plate 3910 and the rotating plate 3920, both sides of the three groups of arc plates 380 are fixedly connected, one end of the limit spring 3930 is fixedly connected with a movable plate 3940, and the end of the movable plate 3940 away from the limit spring 3930 is rotatably connected with a ball 3950.

[0049] When the moving cylinder 220 is reset, it will drive the reciprocating screw a340 to move synchronously, and the reciprocating screw a340 will drive the fixed shaft 341 to move. When the fixed shaft 341 is engaged into the round block 330, the round block 330 and the fixed shaft 341 can be fixed through the engagement between the inclined block 343 and the slot 331. At this time, the servo motor b320 is started to drive the round block 330 to rotate, and the round block 330 drives the fixed shaft 341 and the reciprocating screw a340 to rotate synchronously. The reciprocating screw a340 drives the two groups of reciprocating screws b360 to rotate through the belt 350, so that the three groups of cleaning brushes 370 slide inside the detection chamber 221, and the cleaning brush 370 drives the square plate 3910 to move, and the square plate 3910 drives the rotating plate 3920 to fit the arc plate 380 and move synchronously. When the rotating plate 3920 moves to one side of the ball 3950, it will drive the arc plate 380 to stretch the spring d390 and move forward The arc plate 380 moves to block the circular hole 222 to prevent impurities in the exhaust gas from falling out of the circular hole 222 when the detection chamber 221 is cleaned. When the arc plate 380 pulls the spring d390 to a certain length, the cleaning brush 370 drives the rotating plate 3920 to continuously move so that the ball 3950 drives the movable plate 3940 to squeeze the limit spring 3930, so that the ball 3950 retracts into the arc plate 380. Under the action of the spring d390, the arc plate 380 can be reset to facilitate subsequent detection. The exhaust gas impurities adhered to the surface of the detection chamber 221 and the filter screen 372 are cleaned by the cleaning brush 370, which can ensure that the detector 223 can accurately measure the pollutant concentration in the gas and provide more accurate detection results. At the same time, cleaning the impurities can avoid clogging of the filter screen 372 due to long-term use, so that the exhaust gas cannot enter the detection chamber 221 well.

[0050] Please refer to Fig.15 A spring telescopic rod 342 is fixedly connected inside the fixed shaft 341, and a bevel block 343 is fixedly connected to the top of the spring telescopic rod 342. The bevel block 343 is slidably connected to the fixed shaft 341, and the top of the bevel block 343 passes through one side of the surface of the fixed shaft 341. A slot 331 that matches the bevel block 343 is opened inside the round block 330.

[0051] Through the cooperation between the inclined block 343 and the slot 331 , the fixed shaft 341 can drive the reciprocating screw rod a340 to rotate and move out from the inside of the round block 330 .

[0052] Please refer to Fig.13 and Fig.14The discharge assembly 400 includes a push rod 410 fixedly connected to one side of the cleaning brush 370, six groups of baffles 420 are rotatably connected inside the fixed circular plate 2990, and an arc shaft 430 is rotatably connected inside the six groups of baffles 420. A torsion spring 440 is provided on one side of the surface of the arc shaft 430, and the arc shaft 430 is fixedly connected to the fixed circular plate 2990, and a leakage groove 450 is opened in the fixed circular plate 2990.

[0053] When the cleaning brush 370 moves toward the side of the fixed circular plate 2990 for cleaning, the push rod 410 is pressed against the baffle 420 and pushed, so that the baffle 420 is rotated to one side and opened through the arc shaft 430, so that the impurities cleaned by the cleaning brush 370 can fall from the leakage groove 450, thereby better maintaining the cleanliness of the inside of the detection cavity 221, and at the same time further improving the accuracy of the detection.

[0054] When in use, by starting the servo motor a, the threaded screw drives the moving cylinder to move, and the moving cylinder drives the semi-circular ball to slide inside the spiral step groove. When the moving cylinder moves to the rotation corner of the spiral step groove, it will drive the moving cylinder to rotate sixty degrees inside the fixed cylinder, so that the round hole fits with the air inlet, until there is exhaust gas inside the three sets of detection chambers. The exhaust gas at different stages inside the exhaust pipe can be detected through the three sets of detection chambers, and the type, concentration and emission of pollutants in the exhaust gas can be accurately understood, so as to take targeted measures in time to reduce the pollution of the environment by exhaust gas, and at the same time further improve the accuracy and efficiency of exhaust gas detection. The moving cylinder continues to move toward one side of the inner wall of the fixed cylinder, so that the blocking plates on both sides move relatively until they fit together, which can effectively block the air inlet and prevent the exhaust gas inside the exhaust pipe from entering the detection chamber when the detector is detecting the exhaust gas, causing detection errors. When the moving cylinder is reset, it will drive the reciprocating screw a to move synchronously, and the reciprocating screw a drives The fixed shaft moves, which can fix the round block and the fixed shaft. At this time, the servo motor b is started to make the three groups of cleaning brushes slide inside the detection chamber, so that the arc plate blocks the circular hole to prevent impurities in the exhaust gas from falling out of the circular hole when the detection chamber is cleaned. The exhaust gas impurities adhered to the detection chamber and the filter surface are cleaned by the cleaning brush, which can ensure that the detector accurately measures the pollutant concentration in the gas and provide more accurate detection results. At the same time, the impurities are cleaned, which can avoid clogging of the filter due to long-term use, so that the exhaust gas cannot enter the detection chamber well. When the cleaning brush moves to one side of the fixed circular plate for cleaning, the push rod is attached to the baffle and pushed, so that the baffle is rotated to one side through the arc axis to open, so that the impurities cleaned by the cleaning brush can fall from the leakage groove, better maintain the cleanliness of the inside of the detection chamber, and further improve the accuracy of the detection. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0055] A detection method for an environmental exhaust gas detection device comprises the following steps:

[0056] Step 1: Start the servo motor a2950 to drive the threaded screw 2980 to rotate, so that the moving cylinder 220 moves and rotates through the spiral step groove 211. When the moving cylinder 220 rotates on one side each time, a group of circular holes 222 overlaps with the air inlet 212, so that the exhaust gas inside the exhaust pipe 100 enters the detection chamber 221, and then the exhaust gas at different stages enters the detection chamber 221 in turn for detection.

[0057] Step 2: After the detection is completed, the inner wall of the detection chamber 221 and the surface of the filter screen 372 are cleaned by the cleaning component 300.

[0058] Step 3: The cleaned impurities are discharged from the inside of the moving cylinder 220 through the discharge assembly 400 .

[0059] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An environmentally friendly exhaust gas detection device, comprising an exhaust pipe (100), characterized in that: A detection component (200) is provided inside the exhaust pipe (100), a cleaning component (300) is provided inside the detection component (200), and a discharge component (400) is provided on one side of the cleaning component (300); The detection assembly (200) comprises a fixed cylinder (210) extending into the exhaust pipe (100), the inner wall of the fixed cylinder (210) being provided with a spiral step groove (211), the bottom end of the fixed cylinder (210) being provided with an air inlet (212), and the inner wall of the fixed cylinder (210) being slidably connected to a moving cylinder (220), three groups of detection cavities (221) being provided inside the moving cylinder (220), and a semicircular ball (230) slidably connected to the spiral step groove (211) being provided on the surface of the moving cylinder (220), a circular hole (222) being provided on one side of the three groups of detection cavities (221), and a detector (223) being installed on the inner wall of the detection cavity (221), an air storage groove (240) being provided on a side of the fixed cylinder (210) away from the moving cylinder (220), a piston rod (250) being slidably connected inside the air storage groove (240), and the air storage A spring a (260) fixedly connected to the piston rod (250) is provided on one side of the groove (240), and a connecting telescopic tube (270) is provided at the bottom end of the side of the air storage groove (240) away from the spring a (260), and two sets of blocking plates (271) are fixedly connected to the end of the connecting telescopic tube (270) away from the air storage groove (240), and a fixed horizontal plate (2940) is welded on one side of the surface of the exhaust pipe (100), and a servo motor a (2950) is fixedly connected to the top of the fixed horizontal plate (2940), and the output end of the servo motor a (2950) is fixedly connected to a bevel gear a (2960), and a meshing bevel gear b (2970) is provided on one side of the top of the bevel gear a (2960), and a threaded screw rod (2980) is rotatably connected to the center of the bevel gear b (2970), and a fixed circular plate (2990) is welded to one end of the threaded screw rod (2980).

2. The environmental protection exhaust gas detection device according to claim 1, characterized in that: Connecting moving blocks (280) are fixed on both sides of the end of the piston rod (250), a moving groove (281) is provided inside the fixed cylinder (210), and a clamping block (290) is slidably connected inside the fixed cylinder (210), the connecting moving block (280) is slidably connected to the moving groove (281), a wire rope (2910) is fixedly connected to one side of the clamping block (290), and a spring b (2920) fixedly connected to one side of the clamping block (290) is sleeved on the surface of the wire rope (2910).

3. The environmental protection exhaust gas detection device according to claim 2 is characterized in that: The surface of the wire rope (2910) is provided with a steering shaft (2911) for changing its extension direction; one end of the wire rope (2910) away from the block (290) is fixedly connected to a round shaft (2930); one side of the round shaft (2930) is fixedly connected to a spring c (2931); and the side of the round shaft (2930) away from the spring c (2931) extends to one end of the spiral stepped groove (211); and the two sets of blocking plates (271) are arranged directly below the air inlet (212).

4. The environmental protection exhaust gas detection device according to claim 1, characterized in that: The cleaning assembly (300) comprises a vertical plate (310) welded to one side of the top end of a fixed horizontal plate (2940); a servo motor b (320) is installed on one side of the vertical plate (310); a round block (330) is fixedly connected to the output end of the servo motor b (320); a fixed shaft (341) is clamped inside the round block (330); a reciprocating screw rod a (340) is fixedly connected to one end of the fixed shaft (341) away from the round block (330); a belt (350) is rotatably connected to one side of the surface of the reciprocating screw rod a (340); and two groups of reciprocating screw rods b (360) are rotatably connected to the inner wall of the belt (350) away from the reciprocating screw rod a (340).

5. The environmental protection exhaust gas detection device according to claim 4 is characterized in that: The ends of the surfaces of the reciprocating screw rods a (340) and b (360) away from the belt (350) are both rotatably connected to a cleaning brush (370), and the ends of the reciprocating screw rods a (340) and b (360) away from the belt (350) are rotatably connected to a triangular plate (371), the insides of the three groups of detection chambers (221) are all fixedly connected to a filter screen (372), and the insides of the detection chambers (221) are all slidably connected to an arc plate (380), one side of the arc plate (380) is fixedly connected to a spring d (390), one end of one group of the springs d (390) away from the arc plate (380) is fixedly connected to one group of the detection chambers (221), and the ends of the other two groups of the springs d (390) away from the arc plate (380) are fixedly connected to a long plate (391).

6. The environmental protection exhaust gas detection device according to claim 5, characterized in that: A square plate (3910) is fixedly connected to one side of the cleaning brush (370), and the cleaning brush (370) is attached to the detection cavity (221) and the surface of the filter (372). A rotating plate (3920) is rotatably connected inside the square plate (3910), and a base rod (3921) is provided between the square plate (3910) and the rotating plate (3920).

7. The environmentally friendly exhaust gas detection device according to claim 5, characterized in that: The three groups of arc-shaped plates (380) are fixedly connected to limit springs (3930) on both sides, one end of the limit spring (3930) is fixedly connected to a movable plate (3940), and one end of the movable plate (3940) away from the limit spring (3930) is rotatably connected to a ball (3950).

8. The environmentally friendly exhaust gas detection device according to claim 4, characterized in that: A spring telescopic rod (342) is fixedly connected inside the fixed shaft (341), and a slanted block (343) is fixedly connected to the top of the spring telescopic rod (342). The slanted block (343) is slidably connected to the fixed shaft (341), and the top of the slanted block (343) passes through one side of the surface of the fixed shaft (341). A slot (331) that matches the slanted block (343) is provided inside the round block (330).

9. The environmental protection exhaust gas detection device according to claim 1, characterized in that: The discharge assembly (400) includes a push rod (410) fixedly connected to one side of the cleaning brush (370); six groups of baffles (420) are rotatably connected inside the fixed circular plate (2990); an arc-shaped shaft (430) is rotatably connected inside the six groups of baffles (420); a torsion spring (440) is provided on one side of the surface of the arc-shaped shaft (430); the arc-shaped shaft (430) is fixedly connected to the fixed circular plate (2990); and a leakage groove (450) is provided inside the fixed circular plate (2990).

10. The detection method of an environmental exhaust gas detection device according to claim 1, characterized in that: The following steps are involved: Step 1: Start the servo motor a (2950) to drive the threaded screw (2980) to rotate, so that the moving cylinder (220) moves and rotates through the spiral step groove (211), and each time the moving cylinder (220) rotates on one side, a group of circular holes (222) overlaps with the air inlet (212), so that the exhaust gas inside the exhaust pipe (100) enters the detection chamber (221), and then the exhaust gas at different stages enters the detection chamber (221) in sequence for detection; Step 2: After the detection is completed, the inner wall of the detection chamber (221) and the surface of the filter screen (372) are cleaned by the cleaning component (300); Step 3: The cleaned impurities are discharged from the inside of the moving cylinder (220) through the discharge assembly (400).

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