Environmental protection waste gas detection device and detection method

Abstract

The present invention discloses an environmentally friendly waste gas detection device and detection method, which belongs to the field of waste gas detection technology, and includes a detector, which is fixedly mounted on a smoke outlet, and a self-cleaning cleaning component for cleaning the detector is also mounted on the smoke outlet; the cleaning component includes: an impurity removal component for cleaning the outer surface of the detector; a first end cleaning component for cleaning one end of the impurity removal component; and a second end cleaning component for cleaning the other end of the impurity removal component. In the above manner, when the impurity removal component is in operation, the present invention cleans one end of the impurity removal component through the first end cleaning component, and cleans the other end of the impurity removal component through the 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.

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] When testing the exhaust gas discharged from the chimney, impurities are easily adhered to the testing instrument, affecting the accuracy of the test. Therefore, a cleaning component is generally configured to clean the testing instrument.

[0003] However, since the cleaning component itself does not have a self-cleaning function, the cleaning component itself becomes dirty after a certain period of time, and it is difficult to achieve a cleaning effect by cleaning the detection instrument.

[0004] Based on this, the present invention designs an environmentally friendly exhaust gas detection device and detection method to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an environmentally friendly exhaust gas detection device and detection method.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An environmentally friendly exhaust gas detection device comprises a detector, the detector is fixedly mounted on a smoke outlet, a detection end of the detector is located inside the smoke outlet, and a self-cleaning cleaning component for cleaning the detector is also mounted on the smoke outlet;

[0008] The cleaning component includes:

[0009] An impurity removal component for cleaning the outer surface of the detector;

[0010] A first end cleaning assembly for cleaning one end of the impurity removing assembly;

[0011] A second end cleaning assembly is provided for cleaning the other end of the impurity removing assembly.

[0012] Furthermore, the impurity removal component includes a wind-driven component, a scraping component and a limiting component; the scraping component is installed on the wind-driven component, the scraping component is in contact with the outer wall of the detector, and the scraping component is connected to the limiting component.

[0013] Furthermore, the wind drive assembly includes a transverse plate, fan blades, a straight shaft, an outer cover, a reciprocating threaded rod, a first bevel gear and a second bevel gear; the transverse plate is fixedly mounted on the outer wall of the smoke outlet, the outer cover is fixedly connected to the transverse plate, the straight shaft is rotatably mounted on the outer cover, the top of the straight shaft is fixedly connected to the fan blades, the fan blades are located above the outer cover, the bottom of the straight shaft is fixedly connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixedly mounted on one end of the reciprocating threaded rod, the reciprocating threaded rod passes through the outer cover and the smoke outlet in turn, and the reciprocating threaded rod is rotatably connected to the smoke outlet and the outer cover, the second bevel gear and the first bevel gear are both located inside the outer cover; a scraping assembly is installed on the reciprocating threaded rod.

[0014] Furthermore, the scraping assembly includes a first scraper and a threaded sleeve; a threaded sleeve is threadedly connected to the reciprocating threaded rod, and the first scraper is fixedly connected to one side of the threaded sleeve. A sliding hole is opened at the lower end of the first scraper for the detector to pass through, and the outer wall of the detector is slidably connected to the inner wall of the sliding hole; the bottom of the first scraper is connected to the limit assembly.

[0015] Furthermore, the limiting assembly includes a guide rod and a sliding sleeve; the bottom of the first scraper is fixedly connected to the sliding sleeve, the sliding sleeve is slidably connected to the guide rod, the guide rod is fixedly installed on the inner wall of the smoke outlet, the guide rod is located below the detector, and the length direction of the guide rod is parallel to the length direction of the detector.

[0016] Furthermore, the first end cleaning assembly includes a first scraper, a polygonal block, a mounting block, a first spring and a sliding cylinder; the end of the reciprocating threaded rod located at one end inside the smoke outlet is fixedly connected to the polygonal block, the other end of the polygonal block is fixedly connected to the mounting block, the first spring is installed on the polygonal block, one end of the first spring is fixedly connected to the mounting block, the other end of the first spring is fixedly connected to the sliding cylinder, the sliding cylinder is movably mounted on the polygonal block, and a plurality of groups of first scrapers are fixedly connected in the circumferential direction of the sliding cylinder, and when the first scraper moves to contact with the sliding cylinder, the first scraper is in close contact with the outer side surface of the first scraper.

[0017] Furthermore, the second end cleaning assembly includes a rotating assembly, a transverse sleeve, a second spring, a sliding plate and a second scraper; a plurality of transverse sleeves are installed on the rotating assembly, and second springs are installed inside the transverse sleeves, one end of the second spring is fixedly connected to the transverse sleeve, and the other end of the second spring is fixedly connected to the sliding plate, one end of the sliding plate is slidably connected to the inside of the transverse sleeve, and the other end of the sliding plate is fixedly connected to the second scraper.

[0018] Furthermore, the rotating assembly includes a first gear ring and a second gear ring that are meshed with each other; a plurality of transverse sleeves are fixedly connected to the first gear ring, the second gear ring is fixedly connected to the reciprocating threaded rod, the first gear ring is rotatably installed on the inner wall of the smoke outlet pipe through a connecting bearing, and the first gear ring is movably sleeved on the outside of the detector.

[0019] The present invention also provides a detection method of the environmental protection exhaust gas detection device, comprising the following steps:

[0020] Step 1: During the detection, the internal gas of the smoke outlet is detected by the detector, the wind drives the fan blades to rotate, the fan blades drive the straight shaft to rotate, the straight shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the reciprocating threaded rod to rotate, the reciprocating threaded rod drives the threaded sleeve to move horizontally, under the limiting action of the guide rod and the sliding sleeve, the threaded sleeve drives the first scraper to move horizontally to scrape and clean the impurities on the inner wall of the detector;

[0021] Step 2: When the first scraper moves to contact the sliding cylinder, the polygonal block is driven to rotate by the reciprocating threaded rod. The polygonal block and the reciprocating threaded rod are connected in a polygonal manner. The polygonal block drives the sliding cylinder to rotate. The sliding cylinder drives a plurality of groups of first scrapers to rotate. The first scrapers scrape and clean the outer side surface of the first scraper;

[0022] Step three, when the first scraper moves to contact with the second scraper, the second gear ring is driven to rotate by the reciprocating threaded rod, the second gear ring drives the first gear ring to rotate, the first gear ring drives the cross sleeve, the second spring, the sliding plate and the second scraper to rotate. By setting the second spring, it can be ensured that the second scraper is in close contact with the first scraper, and the second scraper scrapes and cleans the inner side of the first scraper.

[0023] Beneficial Effects

[0024] The present invention cleans the outer surface of the detector through the impurity cleaning component. At the same time, when the impurity cleaning component is running, one end of the impurity cleaning component is cleaned through the first end cleaning component, and the other end of the impurity cleaning component is cleaned through the second end cleaning component, thereby realizing self-cleaning of the cleaning component, ensuring that the impurity cleaning component is always in a clean state, thereby ensuring the cleaning effect of the cleaning component on the detector.

[0025] According to the present invention, when the first scraper moves to contact the sliding cylinder, the polygonal block is driven to rotate by the reciprocating threaded rod, the polygonal block and the reciprocating threaded rod are connected in a polygonal manner, the polygonal block drives the sliding cylinder to rotate, the sliding cylinder drives a plurality of groups of first scrapers to rotate, the first scraper scrapes and cleans the outer side surface of the first scraper, thereby ensuring the cleanliness of the outer side of the first scraper; when the first scraper moves to contact the second scraper, the second gear ring is driven to rotate by the reciprocating threaded rod, the second gear ring drives the first gear ring to rotate, the first gear ring drives the cross sleeve, the second spring, the sliding plate and the second scraper to rotate, the second spring is provided to ensure that the second scraper is in close contact with the first scraper, the second scraper scrapes and cleans the inner side surface of the first scraper, thereby ensuring the cleanliness of the inner side of the first scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 The main structure of the environmental protection exhaust gas detection device of the present invention is a three-dimensional Figure 1 ;

[0028] Figure 2 This is a front view of the structure of an environmentally friendly exhaust gas detection device of the present invention;

[0029] Figure 3 This is a left view of the structure of an environmentally friendly exhaust gas detection device of the present invention;

[0030] Figure 4 For along Figure 2 AA direction cross-sectional view;

[0031] Figure 5 For along Figure 2 BB direction cross-sectional view;

[0032] Figure 6 for Figure 4 Enlarged view of point C in the middle;

[0033] Figure 7 for Figure 5 Enlarged view of point D in the middle.

[0034] The numbers in the figure represent:

[0035] 1. Smoke outlet 2. Detector 3. Cleaning assembly 31. Impurity removal assembly 311. Horizontal plate 312. Fan blade 313. Straight shaft 314. Outer cover 315. Reciprocating threaded rod 316. Guide rod 317. Sliding sleeve 318. First scraper 319. First bevel gear 3110. Second bevel gear 3111. Sliding hole 3112. Threaded sleeve 32. First end cleaning assembly 321. First scraper 322. Polygonal block 323. Mounting block 324. First spring 325. Sliding cylinder 33. Second end cleaning assembly 331. First gear ring 332. Second gear ring 333. Horizontal sleeve 334. Connecting bearing 335. Second spring 336. Sliding plate 337. Second scraper. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention will be further described below in conjunction with the embodiments.

[0038] Example 1

[0039] Please refer to the instruction manual Figure 1-7 , an environmentally friendly exhaust gas detection device, comprising a detector 2, the detector 2 is fixedly mounted on a smoke outlet 1, the detection end of the detector 2 is located inside the smoke outlet 1, and a self-cleaning cleaning component 3 for cleaning the detector 2 is also mounted on the smoke outlet 1;

[0040] Cleaning component 3 includes:

[0041] An impurity removal component 31 for cleaning the outer surface of the detector 2;

[0042] A first end cleaning component 32 for cleaning one end of the impurity removing component 31;

[0043] A second end cleaning component 33 for cleaning the other end of the impurity removing component 31;

[0044] The present invention cleans the outer surface of the detector 2 through the impurity removing component 31. At the same time, when the impurity removing component 31 is running, one end of the impurity removing component 31 is cleaned through the first end cleaning component 32, and the other end of the impurity removing component 31 is cleaned through the second end cleaning component 33, thereby realizing self-cleaning of the cleaning component 3, ensuring that the impurity removing component 31 is always in a clean state, thereby ensuring the cleaning effect of the cleaning component 3 on the detector 2.

[0045] Example 2

[0046] Based on Example 1, please refer to the attached manual. Figure 1-7 The impurity removal component 31 includes a wind driving component, a scraping component and a limiting component; the scraping component is installed on the wind driving component, the scraping component is in contact with the outer wall of the detector 2, and the scraping component is connected to the limiting component;

[0047] The wind drive assembly includes a horizontal plate 311, a fan blade 312, a straight shaft 313, an outer cover 314, a reciprocating threaded rod 315, a first bevel gear 319 and a second bevel gear 3110; the horizontal plate 311 is fixedly installed on the outer wall of the smoke outlet 1, the horizontal plate 311 is fixedly connected to the outer cover 314, the straight shaft 313 is rotatably installed on the outer cover 314, the top of the straight shaft 313 is fixedly connected to the fan blade 312, the fan blade 312 is located above the outer cover 314, and the bottom of the straight shaft 313 is fixedly connected to the first bevel gear 319. The first bevel gear 319 is meshed with the second bevel gear 3110, and the second bevel gear 3110 is fixedly mounted on one end of the reciprocating threaded rod 315. The reciprocating threaded rod 315 passes through the outer cover 314 and the smoke outlet pipe 1 in sequence, and the reciprocating threaded rod 315 is rotatably connected to the smoke outlet pipe 1 and the outer cover 314. The second bevel gear 3110 and the first bevel gear 319 are both located inside the outer cover 314; a scraping assembly is mounted on the reciprocating threaded rod 315;

[0048] During detection, the internal gas of the smoke outlet 1 is detected by the detector 2, the wind drives the fan blade 312 to rotate, the fan blade 312 drives the straight shaft 313 to rotate, the straight shaft 313 drives the first bevel gear 319 to rotate, the first bevel gear 319 drives the second bevel gear 3110 to rotate, the second bevel gear 3110 drives the reciprocating threaded rod 315 to rotate, the reciprocating threaded rod 315 drives the scraping assembly to move, and the impurities on the detector 2 are scraped and cleaned;

[0049] The scraping assembly includes a first scraper 318 and a threaded sleeve 3112; the reciprocating threaded rod 315 is threadedly connected with the threaded sleeve 3112, and one side of the threaded sleeve 3112 is fixedly connected with the first scraper 318, and the lower end of the first scraper 318 is provided with a sliding hole 3111 for the detector 2 to pass through, and the outer wall of the detector 2 is slidably connected to the inner wall of the sliding hole 3111; the bottom of the first scraper 318 is connected to the limit assembly;

[0050] Under the limiting action of the limiting assembly, the reciprocating threaded rod 315 drives the threaded sleeve 3112 to move horizontally, and the threaded sleeve 3112 drives the first scraper 318 to move horizontally to scrape and clean the impurities on the inner wall of the detector 2;

[0051] The limiting assembly includes a guide rod 316 and a sliding sleeve 317; the bottom of the first scraper 318 is fixedly connected with the sliding sleeve 317, the sliding sleeve 317 is slidably connected to the guide rod 316, the guide rod 316 is fixedly installed on the inner wall of the smoke outlet 1, the guide rod 316 is located below the detector 2, and the length direction of the guide rod 316 is parallel to the length direction of the detector 2;

[0052] Under the limiting effect of the guide rod 316 and the sliding sleeve 317, the first scraper 318 is driven by the threaded sleeve 3112 to move horizontally to scrape and clean the impurities on the inner wall of the detector 2;

[0053] Preferably, the first scraper 318 is located on a side of the threaded sleeve 3112 away from the fan blade 312 .

[0054] Example 3

[0055] Based on Example 2, please refer to the attached manual. Figure 1-7 The first end cleaning assembly 32 includes a first scraper 321, a polygonal block 322, a mounting block 323, a first spring 324 and a sliding cylinder 325; the end of the reciprocating threaded rod 315 located inside the smoke outlet 1 is fixedly connected to the polygonal block 322, the other end of the polygonal block 322 is fixedly connected to the mounting block 323, a first spring 324 is installed on the polygonal block 322, one end of the first spring 324 is fixedly connected to the mounting block 323, the other end of the first spring 324 is fixedly connected to the sliding cylinder 325, the sliding cylinder 325 is movably sleeved on the polygonal block 322, and a plurality of groups of first scrapers 321 are fixedly connected in the circumferential direction of the sliding cylinder 325. When the first scraper 318 moves to contact the sliding cylinder 325, the first scraper 321 is in close contact with the outer side surface of the first scraper 318;

[0056] When the first scraper 318 moves to contact the sliding cylinder 325, the polygonal block 322 is driven to rotate by the reciprocating threaded rod 315. The polygonal block 322 and the reciprocating threaded rod 315 are connected in a polygonal manner. The polygonal block 322 drives the sliding cylinder 325 to rotate. The sliding cylinder 325 drives a plurality of groups of first scrapers 321 to rotate. The first scrapers 321 scrape and clean the outer side surface of the first scraper 318, thereby ensuring the cleanliness of the outer side of the first scraper 318.

[0057] The second end cleaning assembly 33 includes a rotating assembly, a transverse sleeve 333, a second spring 335, a sliding plate 336 and a second scraper 337; a plurality of transverse sleeves 333 are installed on the rotating assembly, and the second springs 335 are installed inside the transverse sleeves 333, one end of the second spring 335 is fixedly connected to the transverse sleeve 333, and the other end of the second spring 335 is fixedly connected to the sliding plate 336, one end of the sliding plate 336 is slidably connected to the inside of the transverse sleeve 333, and the other end of the sliding plate 336 is fixedly connected to the second scraper 337;

[0058] A plurality of groups of second scrapers 337 are respectively distributed in the circumferential direction of the detector 2;

[0059] The rotating assembly includes a first gear ring 331 and a second gear ring 332 that are meshed with each other; a plurality of sets of transverse sleeves 333 are fixedly connected to the first gear ring 331, the second gear ring 332 is fixedly connected to the reciprocating threaded rod 315, the first gear ring 331 is rotatably mounted on the inner wall of the smoke outlet 1 through a connecting bearing 334, and the first gear ring 331 is movably sleeved on the outer side of the detector 2;

[0060] When the first scraper 318 moves to contact with the second scraper 337, the reciprocating threaded rod 315 drives the second gear ring 332 to rotate, the second gear ring 332 drives the first gear ring 331 to rotate, the first gear ring 331 drives the cross sleeve 333, the second spring 335, the sliding plate 336 and the second scraper 337 to rotate. By setting the second spring 335, it can be ensured that the second scraper 337 is in close contact with the first scraper 318, and the second scraper 337 scrapes and cleans the inner side of the first scraper 318, thereby ensuring the cleanliness of the inner side of the first scraper 318.

[0061] This embodiment also provides a detection method of an environmental exhaust gas detection device, comprising the following steps:

[0062] Step 1: During the detection, the internal gas of the smoke outlet 1 is detected by the detector 2, the wind drives the fan blade 312 to rotate, the fan blade 312 drives the straight shaft 313 to rotate, the straight shaft 313 drives the first bevel gear 319 to rotate, the first bevel gear 319 drives the second bevel gear 3110 to rotate, the second bevel gear 3110 drives the reciprocating threaded rod 315 to rotate, the reciprocating threaded rod 315 drives the threaded sleeve 3112 to move horizontally, under the limiting action of the guide rod 316 and the sliding sleeve 317, the threaded sleeve 3112 drives the first scraper 318 to move horizontally, and the impurities on the inner wall of the detector 2 are scraped and cleaned;

[0063] Step 2: When the first scraper 318 moves to contact the sliding cylinder 325, the polygonal block 322 is driven to rotate by the reciprocating threaded rod 315. The polygonal block 322 and the reciprocating threaded rod 315 are connected in a polygonal manner. The polygonal block 322 drives the sliding cylinder 325 to rotate. The sliding cylinder 325 drives a plurality of groups of first scrapers 321 to rotate. The first scrapers 321 scrape and clean the outer side surface of the first scraper 318, thereby ensuring that the outer side of the first scraper 318 is clean.

[0064] Step three, when the first scraper 318 moves to contact with the second scraper 337, the reciprocating threaded rod 315 drives the second gear ring 332 to rotate, the second gear ring 332 drives the first gear ring 331 to rotate, the first gear ring 331 drives the cross sleeve 333, the second spring 335, the sliding plate 336 and the second scraper 337 to rotate. By setting the second spring 335, it can be ensured that the second scraper 337 is in close contact with the first scraper 318, and the second scraper 337 scrapes and cleans the inner side of the first scraper 318, thereby ensuring the cleanliness of the inner side of the first scraper 318.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An environmentally friendly exhaust gas detection device, comprising a detector (2), the detector (2) being fixedly mounted on a smoke outlet (1), the detection end of the detector (2) being located inside the smoke outlet (1), and characterized in that: The smoke outlet tube (1) is also provided with a self-cleaning cleaning component (3) for cleaning the detector (2); The cleaning component (3) comprises: An impurity removal component (31) for cleaning the outer surface of the detector (2); A first end cleaning component (32) for cleaning one end of the impurity removing component (31); a second end cleaning component (33) for cleaning the other end of the impurity cleaning component (31); the impurity cleaning component (31) comprises a wind driving component, a scraping component and a limiting component; the scraping component is mounted on the wind driving component, the scraping component is in close contact with the outer wall of the detector (2), and the scraping component is connected to the limiting component; The wind-driven assembly comprises a horizontal plate (311), a fan blade (312), a straight shaft (313), an outer cover (314), a reciprocating threaded rod (315), a first bevel gear (319), and a second bevel gear (3110); the horizontal plate (311) is fixedly mounted on the outer wall of the smoke outlet pipe (1); the horizontal plate (311) is fixedly connected to the outer cover (314); the straight shaft (313) is rotatably mounted on the outer cover (314); the top of the straight shaft (313) is fixedly connected to the fan blade (312); the fan blade (312) is located above the outer cover (314); the straight shaft (313) A first bevel gear (319) is fixedly connected to the bottom of the housing; the first bevel gear (319) is meshedly connected to a second bevel gear (3110); the second bevel gear (3110) is fixedly mounted on one end of a reciprocating threaded rod (315); the reciprocating threaded rod (315) passes through the outer cover (314) and the smoke outlet pipe (1) in sequence; the reciprocating threaded rod (315) is rotatably connected to the smoke outlet pipe (1) and the outer cover (314); the second bevel gear (3110) and the first bevel gear (319) are both located inside the outer cover (314); a scraping assembly is mounted on the reciprocating threaded rod (315); The scraping assembly comprises a first scraper (318) and a threaded sleeve (3112); the threaded sleeve (3112) is threadedly connected to the reciprocating threaded rod (315); one side of the threaded sleeve (3112) is fixedly connected to the first scraper (318); a sliding hole (3111) is provided at the lower end of the first scraper (318) for the detector (2) to pass through; the outer wall of the detector (2) is slidably connected to the inner wall of the sliding hole (3111); the bottom of the first scraper (318) is connected to the limit assembly; The limiting assembly comprises a guide rod (316) and a sliding sleeve (317); the bottom of the first scraper (318) is fixedly connected to the sliding sleeve (317), the sliding sleeve (317) is slidably connected to the guide rod (316), the guide rod (316) is fixedly mounted on the inner wall of the smoke outlet pipe (1), the guide rod (316) is located below the detector (2), and the length direction of the guide rod (316) is parallel to the length direction of the detector (2); The first end cleaning assembly (32) comprises a first scraper (321), a polygonal block (322), a mounting block (323), a first spring (324) and a sliding cylinder (325); the end of the reciprocating threaded rod (315) located inside the smoke outlet pipe (1) is fixedly connected to the polygonal block (322), the other end of the polygonal block (322) is fixedly connected to the mounting block (323), a first spring (324) is mounted on the polygonal block (322), one end of the first spring (324) is fixedly connected to the mounting block (323), the other end of the first spring (324) is fixedly connected to the sliding cylinder (325), the sliding cylinder (325) is movably sleeved on the polygonal block (322), a plurality of groups of first scrapers (321) are fixedly connected in the circumferential direction of the sliding cylinder (325), and when the first scraper (318) moves to contact the sliding cylinder (325), the first scraper (321) is in close contact with the outer side surface of the first scraper (318); The second end cleaning assembly (33) comprises a rotating assembly, a transverse sleeve (333), a second spring (335), a sliding plate (336) and a second scraper (337); a plurality of transverse sleeves (333) are mounted on the rotating assembly, the transverse sleeves (333) are each internally mounted with a second spring (335), one end of the second spring (335) is fixedly connected to the transverse sleeve (333), the other end of the second spring (335) is fixedly connected to the sliding plate (336), one end of the sliding plate (336) is slidably connected to the interior of the transverse sleeve (333), and the other end of the sliding plate (336) is fixedly connected to the second scraper (337); The rotating assembly comprises a first gear ring (331) and a second gear ring (332) which are meshed with each other; a plurality of groups of transverse sleeves (333) are fixedly connected to the first gear ring (331); the second gear ring (332) is fixedly connected to the reciprocating threaded rod (315); the first gear ring (331) is rotatably mounted on the inner wall of the smoke outlet pipe (1) via a connecting bearing (334); and the first gear ring (331) is movably sleeved on the outer side of the detector (2).

2. A detection method of the environmental exhaust gas detection device according to claim 1, characterized in that: The following steps are involved: Step 1: During detection, the internal gas of the smoke outlet (1) is detected by the detector (2), the wind drives the fan blade (312) to rotate, the fan blade (312) drives the straight shaft (313) to rotate, the straight shaft (313) drives the first bevel gear (319) to rotate, the first bevel gear (319) drives the second bevel gear (3110) to rotate, the second bevel gear (3110) drives the reciprocating threaded rod (315) to rotate, the reciprocating threaded rod (315) drives the threaded sleeve (3112) to move horizontally, under the limiting action of the guide rod (316) and the sliding sleeve (317), the threaded sleeve (3112) drives the first scraper (318) to move horizontally, and impurities on the inner wall of the detector (2) are scraped and cleaned; Step 2: When the first scraper (318) moves to contact the sliding cylinder (325), the polygonal block (322) is driven to rotate by the reciprocating threaded rod (315). The polygonal block (322) and the reciprocating threaded rod (315) are connected in a polygonal manner. The polygonal block (322) drives the sliding cylinder (325) to rotate. The sliding cylinder (325) drives a plurality of groups of first scrapers (321) to rotate. The first scrapers (321) scrape and clean the outer side surface of the first scraper (318). Step 3: When the first scraper (318) moves to contact the second scraper (337), the reciprocating threaded rod (315) drives the second gear ring (332) to rotate, the second gear ring (332) drives the first gear ring (331) to rotate, and the first gear ring (331) drives the transverse sleeve (333), the second spring (335), the sliding plate (336) and the second scraper (337) to rotate. By setting the second spring (335), it can be ensured that the second scraper (337) is in close contact with the first scraper (318), and the second scraper (337) scrapes and cleans the inner side of the first scraper (318).

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