A continuously detectable environmental monitoring device

Abstract

The utility model relates to a kind of continuously detected environmental monitoring equipment, belong to environmental monitoring technical field.The continuously detected environmental monitoring equipment, comprising: particulate matter monitoring frame, the inner wall of particulate matter monitoring frame is equipped with exhaust fan, photoelectric detector and illumination lamp;Anti-blocking mechanism, the anti-blocking mechanism includes the sampling tube of screwing on the inner wall of particulate matter monitoring frame;Through the sampling tube thread far away from the inner wall of particulate matter monitoring frame, and then it is convenient to clean the inner wall of sampling tube, ensure the relatively neat of the inner wall of sampling tube, through the wind of construction site blows wind wheel rotation, and then drive scraper frame in sampling cylinder annular movement and to the particulate matter attached in sampling cylinder are scraped, through the particulate matter of exhaust fan adsorption is separated from sampling cylinder, and then it ensures the air intake in sampling cylinder, to ensure the precision of the particulate matter concentration monitoring in the air of construction site.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and in particular to an environmental monitoring device capable of continuous monitoring. Background Technology Continuously detectable environmental monitoring equipment is a device capable of collecting, transmitting, and processing environmental data over long periods of time without interruption. Existing construction sites typically have particulate matter monitors installed to continuously monitor the concentration of particulate matter in the air, thereby promptly understanding changes in particulate matter concentration and taking appropriate dust suppression measures.

[0002] Most existing particulate matter detectors use a combination of a fan and a sampling head to draw air from a construction site and deliver it into the detector, where the concentration of particulate matter in the air is detected by optical scattering.

[0003] However, there are many particles in the air at construction sites. A large amount of particulate matter is drawn into the sampling head along with the air, which can cause some of the particulate matter to adhere to the inner wall of the sampling head. This can reduce the air intake of the sampling head and thus affect the accuracy of the detection of particulate matter concentration in the air at the construction site. Utility Model Content

[0004] Therefore, it is necessary to provide an environmental monitoring device that can continuously detect particulate matter adhering to the inner wall of the sampling head, which can easily lead to a reduction in the air intake of the sampling head.

[0005] The device includes: a particulate matter monitoring frame, the inner wall of which is equipped with an exhaust fan, a photodetector, and a light source; and an anti-clogging mechanism, which includes a sampling tube threaded to the inner wall of the particulate matter monitoring frame, a fixed cylinder fixedly connected to one side of the inner wall of the particulate matter monitoring frame, a scraper frame rotatably connected to the inner wall of the fixed cylinder, the surface of the scraper frame contacting the inner wall of the sampling tube, a first bevel gear fixedly connected to one end of the scraper frame, a second bevel gear meshing with one end of the first bevel gear, and a fan wheel fixedly connected to the top of the second bevel gear.

[0006] In one embodiment, a guide frame is fixedly connected to the top of the particulate matter monitoring frame, and the surface of the impeller is rotatably connected to the inner wall of the guide frame.

[0007] In one embodiment, a shield is fixedly connected to the surface of the sampling tube, and the surface of the shield is in the shape of an isosceles trapezoid.

[0008] In one embodiment, a rubber ring is fixedly connected to the surface of the sampling tube, and the surface of the rubber ring is snapped into the inner wall of the particulate matter monitoring frame.

[0009] In one embodiment, an anti-slip rod is slidably connected to the inner wall of the rubber ring, and the surface of the anti-slip rod is slidably connected to the inner wall of the particulate matter monitoring frame. The rubber ring is used to seal the connection between the sampling tube and the particulate matter monitoring frame, and the anti-slip rod is used to position the rubber ring and the sampling tube, thereby ensuring that the sampling tube is stably installed in the particulate matter monitoring frame and ensuring the air intake volume in the particulate matter monitoring frame.

[0010] In one embodiment, a baffle is fixedly connected to the top of the particulate matter monitoring frame, and the top of the baffle is conical. The baffle reduces the amount of rainwater entering the air guide frame, ensuring smooth rotation of the impeller within the air guide frame.

[0011] In one embodiment, an oil inlet pipe is fixedly connected to the inner wall of the fixed cylinder, and a sealing cap is threaded onto the surface of the oil inlet pipe. The oil inlet pipe facilitates lubrication of the first and second bevel gears inside the fixed cylinder, reducing the meshing resistance of the first and second bevel gears and ensuring the scraping effect of the scraper frame on the sampling tube.

[0012] In one embodiment, the surface of the second bevel gear is rotatably connected to the inner wall of the fixed cylinder and the particulate matter monitoring frame in sequence. Beneficial effects

[0013] 1. By keeping the sampling tube thread away from the particulate matter monitoring frame, it is easier to clean the inner wall of the sampling tube, ensuring its relative cleanliness. The wind at the construction site drives the fan wheel to rotate, which in turn drives the scraper frame to move in a circle inside the sampling tube and scrape the particulate matter attached to the sampling tube. The exhaust fan then adsorbs the scraped particulate matter and removes it from the sampling tube, thus ensuring the air intake of the sampling tube and ensuring the accuracy of particulate matter concentration monitoring in the air at the construction site. 2. The shielding frame is used to block most of the rainwater from splashing onto the inner wall of the sampling tube, thereby reducing the area of ​​particulate matter adhering to the inner wall of the sampling tube. The air guide frame is used to guide the air to be blown onto the blade surface of the impeller, thereby ensuring that the impeller can rotate smoothly, thus providing sufficient power to the scraper frame, ensuring the scraping effect on the inner wall of the sampling tube, and thus ensuring the air intake in the sampling tube, thereby ensuring the accuracy of monitoring the concentration of particulate matter in the air of the construction site. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the particulate matter monitoring frame of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the anti-blocking mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0016] Figure label: 100. Particulate matter monitoring frame; 200. Exhaust fan; 300. Photodetector; 400. Anti-clogging mechanism; 401. Sampling tube; 402. Fixing cylinder; 403. Scraper frame; 404. First bevel gear; 405. Second bevel gear; 406. Air guide frame; 407. Fan wheel; 408. Shielding frame; 409. Oil inlet pipe; 410. Sealing cap; 411. Rubber ring; 412. Anti-slip bar; 413. Baffle; 500. Illuminator. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figures 1-5 This invention describes a continuously detectable environmental monitoring device.

[0019] In one embodiment, a continuously detectable environmental monitoring device includes: a particulate matter monitoring frame 100, with an exhaust fan 200, a photodetector 300, and a light 500 installed on the inner wall of the particulate matter monitoring frame 100; and an anti-blocking mechanism 400, including a sampling tube 401 threadedly connected to the inner wall of the particulate matter monitoring frame 100, a fixed cylinder 402 fixedly connected to one side of the inner wall of the particulate matter monitoring frame 100, a scraper frame 403 rotatably connected to the inner wall of the fixed cylinder 402, the surface of the scraper frame 403 contacting the inner wall of the sampling tube 401, a first bevel gear 404 fixedly connected to one end of the scraper frame 403, a second bevel gear 405 meshing with one end of the first bevel gear 404, a fan wheel 407 fixedly connected to the top of the second bevel gear 405, and the surface of the second bevel gear 405 rotatably connected to the fixed cylinder 402 and the inner wall of the particulate matter monitoring frame 100 in sequence.

[0020] It should be noted that the particulate matter monitoring frame 100 is usually composed of a sealing plate, a monitoring frame, bolts, and nuts. The particulate matter detector is usually composed of the particulate matter monitoring frame 100, an exhaust fan 200, a photoelectric detector 300, and a light lamp 500. The particulate matter detector can be installed in a suitable location on the construction site using bolts and nuts, and power can be supplied to the internal electrical components of the particulate matter detector. The brand of the particulate matter detector can be selected from Jiensi, product number 10151409546386.

[0021] The scraper frame 403 is made of polytetrafluoroethylene, which has excellent non-stick properties. Particulate matter is difficult to adhere to the surface of the scraper frame 403. It has good self-lubricating properties, which reduces the friction between the scraper frame 403 and the inner wall of the sampling tube 401, making the scraping process smoother and reducing wear on the inner wall of the sampling tube 401.

[0022] When monitoring the concentration of particulate matter in the air at a construction site is required, the exhaust fan 200, photodetector 300, and illumination lamp 500 are automatically activated via a control terminal such as a PLC controller. The exhaust fan 200 draws air from inside the particulate matter monitoring frame 100, creating a negative pressure inside the frame. This negative pressure then generates suction inside the sampling tube 401, drawing in air from the construction site and transporting it into the monitoring frame 100. The LEDs on the illumination lamp 500 emit light of a specific wavelength, allowing the light to pass through the air sample containing particulate matter. When the light shines on the particulate matter in the air, the particulate matter scatters the light in all directions. The photodetector 300 receives the scattered light signal and converts it into an electrical signal. Different intensities of scattered light result in different magnitudes of the converted electrical signal, and there is a certain correlation between the two. The internal circuitry of the particulate matter detector amplifies and filters the electrical signal to enhance its strength and stability, remove interference signals, and ensure that the signal more accurately reflects the actual situation of the scattered light.

[0023] By measuring the scattered light signals generated by standard samples of different concentrations and recording the corresponding electrical signal values, a calibration curve between the scattered light signal and particulate matter concentration is established. By comparing this pre-established calibration curve with the actual particulate matter concentration in the current air sample, the concentration can be calculated. The calculated particulate matter concentration value is then transmitted to a monitoring center or other terminal equipment via wired or wireless means. This allows managers to remotely monitor the air quality at construction sites in real time and take timely appropriate measures.

[0024] In this embodiment, the air in the construction site will drive the wind turbine 407 to rotate as it flows. The rotating wind turbine 407 drives the second bevel gear 405 to rotate. Since the diameter of the second bevel gear 405 is larger than the diameter of the first bevel gear 404, the specific gear diameter ratio can be selected according to actual needs. The second bevel gear 405 drives the first bevel gear 404 to rotate rapidly. The rapidly rotating first bevel gear 404 drives the scraper frame 403 to rotate. The rotating scraper frame 403 scrapes the inner wall of the sampling tube 401, causing the particles attached to the inner wall of the sampling tube 401 to fall off. The exhaust fan 200 then extracts the particles from the inner wall of the sampling tube 401.

[0025] like Figure 3 As shown, a guide frame 406 is fixedly connected to the top of the particulate matter monitoring frame 100, the surface of the impeller 407 is rotatably connected to the inner wall of the guide frame 406, a baffle 413 is fixedly connected to the top of the particulate matter monitoring frame 100, the top of the baffle 413 is conical, an oil inlet pipe 409 is fixedly connected to the inner wall of the fixed cylinder 402, and a sealing cap 410 is threadedly connected to the surface of the oil inlet pipe 409.

[0026] In this embodiment, the air flowing on the construction site is guided by the air guide frame 406 and blown onto the arc-shaped blades on the wind turbine 407, thereby causing the wind turbine 407 to rotate under the push of the air.

[0027] like Figure 5 As shown, a shielding frame 408 is fixedly connected to the surface of the sampling tube 401. The surface of the shielding frame 408 is in the shape of an isosceles trapezoid. A rubber ring 411 is fixedly connected to the surface of the sampling tube 401. The surface of the rubber ring 411 is snapped into the inner wall of the particulate matter monitoring frame 100. An anti-slip rod 412 is slidably connected to the inner wall of the rubber ring 411. The surface of the anti-slip rod 412 is slidably connected to the inner wall of the particulate matter monitoring frame 100.

[0028] In this embodiment, when the sampling tube 401 needs to be cleaned, the anti-slip rod 412 is pulled away from the particulate matter monitoring frame 100, and the sampling tube 401 is rotated away from the particulate matter monitoring frame 100 to clean the sampling tube 401. After cleaning and drying, the sampling tube 401 is threaded into the particulate matter monitoring frame 100, so that the rubber ring 411 is locked in the particulate matter monitoring frame 100. The anti-slip rod 412 is pushed to move laterally in the rubber ring 411 and slide into the particulate matter monitoring frame 100, so that the sampling tube 401 is stably installed in the particulate matter monitoring frame 100.

[0029] Working principle: The air flowing on the construction site is guided by the air guide frame 406 and blown onto the arc-shaped blades on the wind turbine 407, which in turn causes the wind turbine 407 to rotate under the push of the air. The rotating wind turbine 407 drives the scraper frame 403 to rotate through the second bevel gear 405 and the first bevel gear 404. The rotating scraper frame 403 scrapes the inner wall of the sampling tube 401, causing the particles attached to the inner wall of the sampling tube 401 to fall off. The exhaust fan 200 then extracts the particles from the inner wall of the sampling tube 401.

[0030] It should be noted that the particulate matter monitoring frame 100, exhaust fan 200, photodetector 300 and illumination lamp 500 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the exhaust fan 200, photodetector 300 and illumination lamp 500 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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 this utility model.

Claims

1. A continuously detectable environmental monitoring device, characterized in that, include: A particulate matter monitoring frame (100) is provided with an exhaust fan (200), a photodetector (300), and a light lamp (500) installed on the inner wall of the particulate matter monitoring frame (100). An anti-blocking mechanism (400) includes a sampling tube (401) threaded to the inner wall of a particulate matter monitoring frame (100). A fixed cylinder (402) is fixedly connected to one side of the inner wall of the particulate matter monitoring frame (100). A scraper frame (403) is rotatably connected to the inner wall of the fixed cylinder (402). The surface of the scraper frame (403) contacts the inner wall of the sampling tube (401). A first bevel gear (404) is fixedly connected to one end of the scraper frame (403). One end of the first bevel gear (404) is meshed with a second bevel gear (405). A wind turbine (407) is fixedly connected to the top of the second bevel gear (405).

2. The continuously detectable environmental monitoring equipment according to claim 1, characterized in that, The top of the particulate matter monitoring frame (100) is fixedly connected to an air guide frame (406), and the surface of the impeller (407) is rotatably connected to the inner wall of the air guide frame (406).

3. The environmental monitoring equipment capable of continuous detection according to claim 1, characterized in that, A cover frame (408) is fixedly connected to the surface of the sampling tube (401), and the surface of the cover frame (408) is in the shape of an isosceles trapezoid.

4. The continuously detectable environmental monitoring equipment according to claim 1, characterized in that, A rubber ring (411) is fixedly connected to the surface of the sampling tube (401), and the surface of the rubber ring (411) is snapped into the inner wall of the particulate matter monitoring frame (100).

5. The continuously detectable environmental monitoring equipment according to claim 4, characterized in that, The inner wall of the rubber ring (411) is slidably connected to an anti-slip rod (412), and the surface of the anti-slip rod (412) is slidably connected to the inner wall of the particulate matter monitoring frame (100).

6. The continuously detectable environmental monitoring equipment according to claim 1, characterized in that, A baffle (413) is fixedly connected to the top of the particulate matter monitoring frame (100), and the top of the baffle (413) is conical.

7. The continuously detectable environmental monitoring equipment according to claim 1, characterized in that, The inner wall of the fixed cylinder (402) is fixedly connected to an oil inlet pipe (409), and a sealing cap (410) is threadedly connected to the surface of the oil inlet pipe (409).

8. The continuously detectable environmental monitoring equipment according to claim 1, characterized in that, The surface of the second bevel gear (405) is rotatably connected to the inner wall of the fixed cylinder (402) and the particulate matter monitoring frame (100).

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