Atmospheric particulate matter detection device

Abstract

The utility model provides an atmospheric particulate matter detection device, which belongs to the technical field of meteorological equipment and comprises a first mounting block, a second mounting block and a first pipeline are respectively arranged on two sides of the first mounting block, a second pipeline is arranged on one side, far away from the first mounting block, of the second mounting block, and a detection mechanism is arranged in the first mounting block. The detection mechanism comprises a fixed disc, a second filter screen, a scraping plate and a detection box, and a cover plate is arranged at the bottom of the fixed disc. The detection mechanism is arranged, the second filter screen is provided with a through long straight groove, after a certain part of the filter screen is blocked, the long straight groove can enable airflow to smoothly pass through all the time, a collection screen in a single direction is prevented from being blocked, it is guaranteed that air can continue to pass through the second filter screen after the airflow collects enough samples on the filter screen, the intensity of the passing airflow is guaranteed, and the sampling efficiency is improved. Particulate matters are scraped off through the scraper, and the collection and detection accuracy is ensured by observing the volume of the particulate matters in the detection box.

Description

TECHNICAL FIELD

[0001] The utility model relates to meteorological equipment technical field, concretely is a kind of atmospheric particulate matter detection device. BACKGROUND

[0002] Atmospheric particulate detection refers to the process of monitoring and analyzing various characteristics of suspended particulate matters in atmospheric environment. These suspended particulate matters include solid particles and liquid particles, and their particle size ranges from nanometer to micrometer or even larger. The detection content mainly includes the concentration, particle size distribution and chemical composition of particulate matters.

[0003] During specific detection, the common filter screen filtering will be blocked after collecting particles to a certain extent, stopping the collection of particulate matters, resulting in internal blockage of the collection part, reducing the airflow, and affecting the collection accuracy. The artificial setting of collection and detection direction is not conducive to quickly finding the most sufficient separation direction. UTILITARY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides an atmospheric particulate matter detection device which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides an atmospheric particulate matter detection device, which comprises a first mounting block, two sides of the first mounting block are respectively provided with a second mounting block and a first pipeline, a second pipeline is arranged on the side of the second mounting block away from the first mounting block, a detection mechanism is arranged in the first mounting block, and the detection mechanism comprises:

[0007] A fixed disc is provided with a cover plate at the bottom thereof;

[0008] A second filter screen is fixedly connected to the bottom of the cover plate, and the second filter screen is a cylindrical filter screen;

[0009] A scraper is arranged at the inner ring of the second filter screen, and a pull rod is fixedly connected to the bottom of the scraper;

[0010] A detection box is clamped to the bottom of the first mounting block.

[0011] In one embodiment of the utility model, long straight grooves are arranged on both sides of the second filter screen, the long straight grooves are arranged at the two side positions of the inner wall of the first mounting block, and a first filter screen is arranged at the end of the first pipeline.

[0012] In one embodiment of the utility model, an antistatic coating is coated on the outer ring of the second filter screen, and the antistatic coating on the outer ring of the second filter screen is a fluorocarbon coating.

[0013] In an embodiment of the utility model, the one side of detection box is equipped with the vertical setting observation window, the side of detection box is equipped with the scale line at observation window one side.

[0014] In an embodiment of the utility model, the bottom end of pull rod is penetrated to the lower surface of detection box, and the rod body of pull rod is closely inserted with the bottom plate body of detection box.

[0015] In an embodiment of the utility model, the side annular array of second pipeline is equipped with connecting rod, and the one end of connecting rod away from second pipeline is equipped with concave arc plate.

[0016] In an embodiment of the utility model, the bottom of second mounting block is equipped with adjusting mechanism, the adjusting mechanism includes main rotating shaft, the main rotating shaft is connected with the bottom of second mounting block through bearing, and the shaft body of main rotating shaft is rotatably equipped with second rotating disc located at the bottom of inner wall and the bottom of outer surface of second mounting block respectively.

[0017] In an embodiment of the utility model, the bottom end of main rotating shaft is equipped with support through bearing, the annular groove is opened in the support, the rotating ring is movably equipped in the annular groove, the inner ring of rotating ring is rotatably equipped with revolution rod, and the top end of revolution rod is connected with second rotating disc through connecting piece.

[0018] The atmospheric particulate matter detection device provided by the utility model has the beneficial effects of:

[0019] 1. By setting the detection mechanism, the second filter screen is provided with a through long straight groove, after some part of the filter screen is blocked, the long straight groove can always make the airflow pass smoothly, so as to prevent the single-direction collection net from being blocked, ensure that after the airflow collects enough samples on the filter screen, the air can continue to pass through the second filter screen, ensure the airflow intensity, scrape the particulate matters through the scraper, observe the volume of the particulate matters in the detection box, and then ensure the accuracy of collection and detection.

[0020] 2. By setting the adjusting mechanism, combined with the set air baffle, the recessed part of the air baffle faces the direction of the strongest airflow, at this time, the air inlet of the collection end, that is, the direction of the strongest wind force, the adjusting mechanism can automatically adjust the direction of the air inlet of the collection end according to the strength of the airflow, so that it always faces the direction of the strongest wind force. Like a wind vane, it can accurately locate the main direction of the airflow, and is convenient for automatic adjustment to the direction with the best collection effect. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. Other related drawings can also be obtained by those skilled in the art without creative effort, on the premise of not paying creative effort.

[0022] Figure 1 is a structural schematic diagram provided by the embodiments of the present application;

[0023] Figure 2 is a structural schematic diagram of a detection mechanism provided by the embodiments of the present application;

[0024] Figure 3 is a structural schematic diagram of an adjusting mechanism provided by the embodiments of the present application;

[0025] Figure 4 is a structural schematic diagram of a support part provided by the embodiments of the present application.

[0026] In the figure: 1, first mounting block; 101, second mounting block; 102, first pipeline; 103, first filter screen; 104, second pipeline; 105, connecting rod; 106, concave arc plate; 2, detection mechanism; 201, fixed disc; 202, cover plate; 203, second filter screen; 2031, long straight groove; 204, scraper; 205, pull rod; 206, detection box; 207, observation window; 208, scale; 3, adjusting mechanism; 301, second turntable; 302, main rotating shaft; 303, support; 3031, annular groove; 304, revolving rod; 3041, rotating ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of the present application.

[0028] EMBODIMENT

[0029] REFERENCE Figures 1-4The technical scheme provides a kind of atmospheric particulate matter detection device, wherein including first mounting block 1, the two sides of first mounting block 1 are equipped with second mounting block 101 and first pipeline 102 respectively, second mounting block 101 is equipped with second pipeline 104 away from the side of first mounting block 1, detection mechanism 2 is equipped in first mounting block 1, detection mechanism 2 includes fixed disc 201, second filter screen 203, scraper 204, detection box 206, the bottom of fixed disc 201 is equipped with cover plate 202, second filter screen 203 is fixedly connected to the bottom of cover plate 202, second filter screen 203 is cylindrical filter screen, scraper 204 is located in the inner ring of second filter screen 203, the bottom of scraper 204 is fixedly connected with pull rod 205, detection box 206 is clamped and is equipped in the bottom of first mounting block 1, airflow enters first pipeline 102, excessive flying objects such as fallen leaves etc. are intercepted at this time by first filter screen 103, airflow can be intercepted by filter screen when passing through in second filter screen 203, and part of airflow flows away from long straight groove 2031 at this time, and long straight groove 2031 is located at the two sides of first mounting block 1, so that first filter screen 103 can be accommodated under the action of long straight groove 2031 after reaching the preset collection time, pull rod 205 is pulled, that is, the particulate matter in second filter screen 203 is scraped and falls into detection box 206, the volume of particulate matter collected in unit time can be observed by observation window 207 in combination with scale line 208, and then the other data of particulate matter is calculated, by being provided with detection mechanism 2, second filter screen 203 is equipped with long straight groove 2031, after some part of filter screen is blocked, long straight groove 2031 can always make airflow pass through smoothly, to prevent single-direction collection net from being blocked, to ensure that airflow can continue to pass through second filter screen 203 after enough samples are collected by filter screen, to ensure the intensity of airflow passing through, to scrape particulate matter by scraper 204, to ensure the accuracy of collection and detection by observing the volume of particulate matter in detection box 206.

[0030] Referring to Figures 1-4 , based on the same concept as in the above embodiment 1, the embodiment also proposes that long straight grooves 2031 are arranged on the two sides of second filter screen 203, and the long straight grooves 2031 are located at the two side positions of the inner wall of first mounting block 1, and first filter screen 103 is arranged at the end of first pipeline 102.

[0031] Referring to Figures 1-4 , based on the same concept as in the above embodiment 1, the embodiment also proposes that an antistatic coating is coated on the outer ring of second filter screen 203, and the antistatic coating on the outer ring of second filter screen 203 is a fluorocarbon coating.

[0032] Referring to Figures 1-4 , based on the same concept as in the above embodiment 1, the embodiment also proposes that observation window 207 is arranged on one side of detection box 206, and scale line 208 is arranged on the side of detection box 206 and located on one side of observation window 207.

[0033] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, this embodiment also proposes that the bottom end of the pull rod 205 penetrates through the lower surface of the detection box 206, the rod body of the pull rod 205 is tightly inserted with the bottom plate body of the detection box 206, pulling the pull rod 205 can scrape the particulate matter in the second filter screen 203 and drop into the detection box 206, and the volume of particulate matter collected in unit time can be observed through the observation window 207 combined with the scale line 208.

[0034] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, this embodiment also proposes that the side annular array of the second pipeline 104 is provided with a connecting rod 105, and the end of the connecting rod 105 away from the second pipeline 104 is provided with a concave arc plate 106.

[0035] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, this embodiment also proposes that the bottom of the second mounting block 101 is provided with an adjusting mechanism 3, the adjusting mechanism 3 includes a main rotating shaft 302, the main rotating shaft 302 is connected with the bottom of the second mounting block 101 through a bearing, and a second rotating disc 301 is rotatably arranged on the shaft body of the main rotating shaft 302 and located at the bottom of the inner wall of the second mounting block 101 and the bottom of the outer surface, respectively. In use, the device is placed in an environment where atmospheric particulate matter needs to be detected, and according to the wind vane principle, the direction of the air inlet at the collection end is automatically adjusted according to the strength of the airflow, so that it always faces the direction with the strongest wind.

[0036] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, this embodiment also proposes that the bottom end of the main rotating shaft 302 is provided with a support 303 through a bearing, the support 303 is provided with an annular groove 3031, a rotating ring 3041 is movably arranged in the annular groove 3031, a revolving rod 304 is rotatably arranged at the inner circle of the rotating ring 3041, and the top end of the revolving rod 304 is connected with the second rotating disc 301 through a connecting piece. By setting the adjusting mechanism 3, the recessed part of the wind resistance plate will face the direction of the airflow with the strongest strength, and at this time the air inlet at the collection end will also face the direction with the strongest wind. The adjusting mechanism 3 can automatically adjust the direction of the air inlet at the collection end according to the strength of the airflow, so that it always faces the direction with the strongest wind. Like a wind vane, it can accurately locate the main direction of the airflow and automatically adjust to the direction with the best collection effect.

[0037] Specifically, the working process or working principle of the atmospheric particulate matter detection device is as follows: in use, the device is placed in the environment site where the atmospheric particulate matter needs to be detected, referring to the principle of wind vane, the direction of the air inlet at the collecting end is automatically adjusted according to the air flow strength, so that it always faces the direction with the strongest wind, so that the airflow enters the first pipeline 102, at this time, excessive flying objects such as fallen leaves are intercepted by the first filter screen 103, when the airflow passes through the second filter screen 203, the particulate matter is intercepted by the filter screen, at this time, a part of the airflow flows away from the long straight groove 2031, and the long straight groove 2031 is located on both sides of the first mounting block 1, so that the first filter screen 103 can be accommodated under the action of the long straight groove 2031 after reaching the preset collection time, the pull rod 205 is pulled, so that the particulate matter in the second filter screen 203 is scraped and falls into the detection box 206, the volume of the particulate matter collected per unit time can be observed through the observation window 207 combined with the scale line 208, and then other data of the particulate matter can be calculated.

Claims

1. An atmospheric particulate matter detection device comprising a first mounting block (1), characterized in that, Two sides of the first mounting block (1) are respectively provided with a second mounting block (101) and a first pipeline (102), one side of the second mounting block (101) away from the first mounting block (1) is provided with a second pipeline (104), the first mounting block (1) is provided with a detection mechanism (2) inside, the detection mechanism (2) comprises: A fixed disc (201), the bottom of the fixed disc (201) is provided with a cover plate (202); A second filter screen (203) is fixedly connected to the bottom of the cover plate (202), and the second filter screen (203) is a cylindrical filter screen; A scraper (204) is arranged on the inner ring of the second filter screen (203), and the bottom of the scraper (204) is fixedly connected with a pull rod (205); A detection box (206) is connected to the bottom of the first mounting block (1).

2. The atmospheric particulate matter detection device according to claim 1, characterized in that, Long straight grooves (2031) are formed on both sides of the second filter screen (203), the long straight grooves (2031) are located on both sides of the inner wall of the first mounting block (1), and the end of the first pipeline (102) is provided with a first filter screen (103).

3. The atmospheric particulate matter detection device of claim 2, wherein, An antistatic coating is coated on the outer ring of the second filter screen (203), and the antistatic coating on the outer ring of the second filter screen (203) is a fluorocarbon coating.

4. The atmospheric particulate matter detection device of claim 3, wherein, A vertical observation window (207) is formed on one side of the detection box (206), and a scale line (208) is arranged on the side of the detection box (206) and located on one side of the observation window (207).

5. The atmospheric particulate matter detection device of claim 4, wherein, The bottom end of the pull rod (205) penetrates to the lower surface of the detection box (206), and the rod body of the pull rod (205) is tightly inserted with the bottom plate of the detection box (206).

6. The atmospheric particulate matter detection device of claim 5, wherein, A connecting rod (105) is arranged in an annular array on the side of the second pipeline (104), and a concave arc plate (106) is arranged on the end of the connecting rod (105) away from the second pipeline (104).

7. The atmospheric particulate matter detection device of claim 6, wherein, A adjusting mechanism (3) is arranged on the bottom of the second mounting block (101), the adjusting mechanism (3) comprises a main rotating shaft (302), the main rotating shaft (302) is connected with the bottom of the second mounting block (101) through a bearing, and a second rotating disc (301) is rotatably arranged on the shaft body of the main rotating shaft (302) and located on the bottom of the inner wall of the second mounting block (101) and the bottom of the outer surface of the second mounting block (101).

8. The atmospheric particulate matter detection device of claim 7, wherein, The bottom end of the main rotating shaft (302) is provided with a support (303) through a bearing, an annular groove (3031) is formed in the support (303), a rotating ring (3041) is movably arranged in the annular groove (3031), a revolving rod (304) is rotatably arranged on the inner ring of the rotating ring (3041), and the top end of the revolving rod (304) is connected with the second rotating disc (301) through a connecting piece.

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