Atmospheric particulate matter detection device for environmental protection
By introducing a wind vane and telescopic support rod into the atmospheric particulate matter detection equipment, real-time alignment of the laser particulate matter sensor's air inlet is achieved, solving the problem that the sensor cannot follow the direction of air flow and improving detection accuracy and equipment flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 临沂恒泰新能源有限公司
- Filing Date
- 2025-06-21
- Publication Date
- 2026-07-21
AI Technical Summary
The laser particulate matter sensors in existing atmospheric detection equipment cannot follow the direction of air flow in real time, resulting in insufficient detection accuracy.
An atmospheric particulate matter detection device for environmental protection was designed. It uses a wind vane to guide the air inlet of the laser particulate matter sensor to be aligned with the direction of air flow in real time. Combined with a telescopic support rod and a rotating support shaft, it ensures that particulate matter in the air can fully enter the sensor for detection.
It improves the accuracy of atmospheric particulate matter detection, enhances the flexibility and ease of use of the equipment, and effectively avoids large floating objects from obstructing the air inlet, ensuring smooth detection.
Smart Images
Figure CN224535728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of atmospheric particulate matter detection technology, specifically to an atmospheric particulate matter detection device for environmental protection. Background Technology
[0002] Atmospheric suspended particulate matter refers to solid and liquid particulate matter floating in the air. Its surface adsorbs a large amount of toxic substances, making it easily inhaled and affecting human health. The concentration of suspended particulate matter in the atmosphere is an important indicator of air quality. Currently, laser particulate matter sensors are generally used to detect particulate matter floating in the atmosphere. However, existing laser particulate matter sensors on atmospheric monitoring equipment are typically stationary, while the airflow direction in the detection environment is constantly changing. This makes it impossible for laser particulate matter sensors to guarantee real-time upwind detection, thus affecting the accuracy of particulate matter detection to some extent. Utility Model Content
[0003] The purpose of this invention is to provide an atmospheric particulate matter detection device for environmental protection. The air inlet of the laser particulate matter sensor in this device can be aligned with the direction of air flow in real time under the guidance of the wind vane, so that the moving particulate matter in the air can fully and smoothly enter the laser particulate matter sensor, thereby ensuring the accuracy of atmospheric particulate matter detection.
[0004] The technical solution adopted by this utility model to solve its technical problem is: an atmospheric particulate matter detection device for environmental protection, including a support base, a telescopic support rod, a mounting box, a laser particulate matter sensor, and a wind vane. The bottom of the telescopic support rod is fixedly installed on the upper part of the support base. A rotating support shaft is fixedly installed on the bottom of the mounting box. The rotating support shaft is rotatably sleeved on the top of the telescopic support rod. An air inlet pipe is installed on the vertical side wall of the mounting box. The laser particulate matter sensor is fixedly installed on a mounting plate installed inside the mounting box, and the air inlet of the laser particulate matter sensor is connected to the air outlet of the air inlet pipe. The wind vane is fixedly installed on the upper part of the mounting box, and the air inlet of the air inlet pipe is located in the direction indicated by the arrow of the wind vane.
[0005] Preferably, the mounting box is a hollow cylinder, with an installation operation port provided on the side wall of the hollow cylinder, and an arc-shaped switch door provided on the outside of the installation operation port, the arc-shaped switch door being able to close the installation operation port.
[0006] Furthermore, an air vent is provided on the side wall of the hollow cylinder.
[0007] Furthermore, an anti-blocking frame is fixedly installed on the outside of the air inlet pipe, and the anti-blocking frame is in the shape of a hollow four-sided pyramid.
[0008] Furthermore, the telescopic support rod includes a fixed tube, a first telescopic tube, and a second telescopic tube. The fixed tube is vertically fixed on the support base. The first telescopic tube is sleeved inside the fixed tube, and the second telescopic tube is sleeved inside the first telescopic tube. A first positioning hole is provided at the upper part of the fixed tube. Several equally spaced first adjustment holes are provided on the side wall of the first telescopic tube. The telescopic adjustment of the first telescopic tube is achieved by a pin passing through the first positioning hole and the corresponding first adjustment hole. Several equally spaced second adjustment holes are provided on the side wall of the second telescopic tube. The telescopic adjustment of the second telescopic tube is achieved by a pin passing through the highest first adjustment hole and the corresponding second adjustment hole. The bottom of the rotating support shaft is rotatably sleeved on the top of the second telescopic tube.
[0009] Furthermore, a support ring is fixedly installed on the upper inner side of the second telescopic tube, a plane bearing is installed on the upper part of the support ring, the bottom of the rotating support shaft is sleeved in the plane bearing and the support ring, a deep groove ball bearing is installed on the top of the second telescopic tube, and the rotating support shaft is sleeved in the deep groove ball bearing.
[0010] Furthermore, one side of the arc-shaped switch door is hinged to the side wall of the hollow cylinder, a first connecting plate is fixedly installed on the other side of the arc-shaped switch door, and a second connecting plate opposite to the first connecting plate is installed on the side wall of the hollow cylinder. A through hole is provided on both the first connecting plate and the second connecting plate.
[0011] Furthermore, several fixing holes are provided on the support base.
[0012] The beneficial effects of this utility model are as follows: The structure is simple and easy to manufacture; the wind vane, propelled by the flowing air, points in real-time towards the direction of airflow. The rotation of the wind vane ensures that the air inlet of the laser particulate sensor is always aligned with the direction of airflow, allowing sufficient airflow into the laser particulate sensor and thus guaranteeing the accuracy of particulate matter detection in the atmosphere; the effective support of the rotating support shaft using plane bearings and deep groove ball bearings ensures flexible rotation of the shaft, which in turn allows the wind vane to drive the laser particulate sensor to rotate flexibly; the telescopic support rod allows for height adjustment of the laser particulate sensor, facilitating adjustment of its detection position according to actual detection height requirements and improving the flexibility of use; the anti-obstruction frame effectively prevents large airborne objects (such as plastic bag fragments) from obstructing the air inlet pipe, ensuring effective detection of airborne particulate matter. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of 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 preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a side view of the overall structure of this utility model;
[0016] Figure 3 A partial longitudinal sectional view showing the bottom of the rotation support shaft located on the upper part of the second telescopic tube;
[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 5 for Figure 2 Enlarged view at point B in the middle;
[0019] In the diagram: 1 Support base, 11 Fixing hole, 2 Telescopic support rod, 21 Fixing tube, 211 First positioning hole, 22 First telescopic tube, 221 First adjustment hole, 23 Second telescopic tube, 231 Second adjustment hole, 232 Support ring, 3 Mounting box, 31 Mounting plate, 32 Air inlet pipe, 33 Air outlet, 34 Installation and operation port, 341 Arc-shaped switch door, 342 First connecting plate, 35 Second connecting plate, 36 Rotating support shaft, 37 Support rod, 4 Laser particulate sensor, 41 Air inlet, 5 Wind vane, 51 Arrow, 6 Flat bearing, 7 Deep groove ball bearing, 8 Anti-blocking rod. Detailed Implementation
[0020] The following will describe specific embodiments and appendices. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0021] This utility model provides an atmospheric particulate matter detection device for environmental protection (such as...). Figure 1As shown, the system includes a support base 1, a telescopic support rod 2, a mounting box 3, a laser particulate sensor 4, and a wind vane 5. Both the laser particulate sensor 4 and the wind vane 5 are known and mature technologies in the prior art; therefore, their working principles and detailed structures will not be described in detail here. The laser particulate sensor 4 is used to determine the concentration of suspended particulate matter in the air, and the wind vane 5 is used to adjust and specify the direction of airflow. The bottom of the telescopic support rod 2 is fixedly mounted on the upper part of the support base 1, and a rotating support shaft 36 is fixedly mounted on the bottom of the mounting box 3. The rotating support shaft 36 is rotatably sleeved on the top of the telescopic support rod 2. In practical applications, the mounting box 3 can be adjusted by extending and retracting the telescopic support rod 2. The height can be adjusted to improve the application flexibility of this utility model. At the same time, the free rotation characteristic of the rotating support shaft 36 relative to the telescopic support rod 2 can realize the free rotation of the mounting box 3. An air inlet pipe 32 is set on the vertical side wall of the mounting box 3. The laser particulate sensor 4 is fixedly set on the mounting plate 31 set inside the mounting box 3, and the air inlet of the laser particulate sensor 4 is connected to the air outlet of the air inlet pipe 32. In actual application, the flowing air can directly enter the air inlet of the laser particulate sensor 4 through the air inlet pipe 32, thereby realizing the direct detection of particulate matter in the air by the laser particulate sensor 4. The wind vane 5 is fixedly set on the upper part of the mounting box 3, and the air inlet of the air inlet pipe 32 is located in the direction indicated by the arrow 51 of the wind vane 5. In practical applications, when the flowing air blows the wind vane 5, it rotates under the thrust of the air. During continuous rotation, once the arrow 51 of the wind vane 5 points to the opposite direction of the airflow, the wind vane 5 stops rotating. At this point, the air inlet of the air inlet pipe 32 is aligned with the wind direction, allowing the flowing air to enter the air inlet pipe 32 smoothly. The air flowing in the air inlet pipe 32 is then guided directly into the laser particulate sensor 4, thereby detecting the concentration of particulate matter in the air. To facilitate the reception and processing of particulate matter concentration detection data in practical applications, a controller and a wireless communication module can be installed inside the mounting housing 3. The controller and the wireless communication module are electrically connected. The controller receives the detection digital signal output by the laser particulate sensor 4 in real time and transmits the received digital signal to the cloud server through the wireless communication module. Staff can then query the detection data from the cloud server in real time via computer or mobile phone.
[0022] To reduce wind resistance in the mounting housing 3 and facilitate the smooth rotation of the mounting housing 3 by the wind vane 5, the mounting housing 3 is designed as a hollow cylinder with circular sidewalls. This effectively guides airflow and reduces wind resistance. An installation operation port 34 is provided on the sidewall of the hollow cylinder, and an arc-shaped switch door 341 is provided on the outside of the installation operation port 34. The arc-shaped switch door 341 can close the installation operation port 34. In practical applications, one side of the arc-shaped switch door 341 is hinged to the sidewall of the hollow cylinder, thus enabling arc-shaped opening and closing. The door 341 can be opened or closed. A first connecting plate 342 is fixedly installed on the other side of the arc-shaped switch door 341. A second connecting plate 35 is installed on the side wall of the hollow cylinder, opposite to the first connecting plate 342. A through hole is provided on both the first connecting plate 342 and the second connecting plate 341. When the first connecting plate 342 and the second connecting plate 35 are aligned side by side, the arc-shaped switch door 341 can be closed by using a padlock. The arc-shaped switch door 341 can be opened and closed, which facilitates the installation and maintenance of the laser particulate sensor 4 in the mounting box 3, and at the same time improves the safety protection of the laser particulate sensor 4.
[0023] In practical applications, to facilitate the exhaust of air from the outlet of the laser particulate sensor 4, an exhaust port 33 is provided on the side wall of the hollow cylinder. The airflow from the laser particulate sensor 4 can be directly discharged from the hollow cylinder through the exhaust port 33.
[0024] Based on the above embodiments, the specific implementation of the telescopic support rod 2 is as follows: The telescopic support rod 2 includes a fixed tube 21, a first telescopic tube 22, and a second telescopic tube 23. The fixed tube 21 is vertically fixed on the support base 1. The first telescopic tube 22 is sleeved inside the fixed tube 21, and the first telescopic tube 22 can be adjusted up and down relative to the fixed tube 21. The second telescopic tube 23 is sleeved inside the first telescopic tube 22, and the second telescopic tube 23 can be adjusted up and down relative to the first telescopic tube 22. A first positioning hole 211 is provided at the upper part of the fixed tube 21. Several first adjustment holes 221 are provided at equal intervals on the side wall of the first telescopic tube 22. The telescopic adjustment of the first telescopic tube 22 is realized by a pin passing through the first positioning hole 211 and the corresponding first adjustment hole 221. Several... The second adjustment holes 231 are evenly spaced. A pin passes through the first adjustment hole 221 located at the highest point and the corresponding second adjustment hole 231 to realize the extension and retraction adjustment of the second telescopic tube 23. In actual application, the extension and retraction length of the telescopic support rod 2 can be adjusted according to actual needs. The bottom of the rotating support shaft 36 is rotatably sleeved on the top of the second telescopic tube 23. Specifically, a support ring 232 is fixedly set on the upper inner side of the second telescopic tube 23. A plane bearing 6 is set on the upper part of the support ring 232. The bottom of the rotating support shaft 36 is sleeved in the plane bearing 6 and the support ring 232. A deep groove ball bearing 7 is set on the top of the second telescopic tube 23. The rotating support shaft 36 is sleeved in the deep groove ball bearing 7. The plane bearing 6 and the deep groove ball bearing 7 support and limit the rotating support shaft 36, so that the rotating support shaft 36 can rotate flexibly and freely. To facilitate the placement of the support base 1 on the ground, several fixing holes 11 are provided on the support base 1. After the bolts on the ground pass through the fixing holes 11, the support base 1 can be fixedly installed on the ground.
[0025] Since this utility model needs to be placed outdoors for a long time, in order to prevent floating debris (such as plastic bags) from blocking the air inlet of the air inlet pipe 32, an anti-blocking frame is fixedly installed on the outside of the air inlet pipe 32. The anti-blocking frame is in the shape of a hollow four-sided pyramid. Specifically, the anti-blocking frame consists of four anti-blocking rods 8. One end of the four anti-blocking rods 8 is fixedly connected together, and the other end is distributed on the four outer edges of the air inlet of the air inlet pipe 32. When floating debris falls onto the anti-blocking rods 8, the flowing air blows the debris, and the guiding effect of the anti-blocking rods 8 can make the debris detach from the anti-blocking rods 8, thereby achieving the anti-blocking of the air inlet pipe 32.
[0026] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as limitations on the scope of protection.
[0027] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.
[0028] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.
Claims
1. An atmospheric particulate matter detection device for environmental protection, characterized in that, The device includes a support base, a telescopic support rod, a mounting housing, a laser particulate sensor, and a wind vane. The bottom of the telescopic support rod is fixedly mounted on the upper part of the support base. A rotating support shaft is fixedly mounted on the bottom of the mounting housing, and the rotating support shaft is rotatably sleeved on the top of the telescopic support rod. An air inlet pipe is provided on the vertical side wall of the mounting housing. The laser particulate sensor is fixedly mounted on a mounting plate inside the mounting housing, and the air inlet of the laser particulate sensor is connected to the air outlet of the air inlet pipe. The wind vane is fixedly mounted on the upper part of the mounting housing, and the air inlet of the air inlet pipe is located in the direction indicated by the arrow on the wind vane.
2. The atmospheric particulate matter detection device for environmental protection according to claim 1, characterized in that, The mounting box is a hollow cylinder. An installation operation port is provided on the side wall of the hollow cylinder. An arc-shaped switch door is provided on the outside of the installation operation port. The arc-shaped switch door can close the installation operation port.
3. The atmospheric particulate matter detection device for environmental protection according to claim 2, characterized in that, An air vent is provided on the side wall of the hollow cylinder.
4. The atmospheric particulate matter detection device for environmental protection according to claim 2, characterized in that, An anti-blocking frame is fixedly installed on the outside of the air inlet duct. The anti-blocking frame is in the shape of a hollow four-sided pyramid.
5. An atmospheric particulate matter detection device for environmental protection according to claim 2, characterized in that, The telescopic support rod includes a fixed tube, a first telescopic tube, and a second telescopic tube. The fixed tube is vertically fixed on the support base. The first telescopic tube is sleeved inside the fixed tube, and the second telescopic tube is sleeved inside the first telescopic tube. A first positioning hole is provided at the upper part of the fixed tube. Several equally spaced first adjustment holes are provided on the side wall of the first telescopic tube. The telescopic adjustment of the first telescopic tube is achieved by a pin passing through the first positioning hole and the corresponding first adjustment hole. Several equally spaced second adjustment holes are provided on the side wall of the second telescopic tube. The telescopic adjustment of the second telescopic tube is achieved by a pin passing through the highest first adjustment hole and the corresponding second adjustment hole. The bottom of the rotating support shaft is rotatably sleeved on the top of the second telescopic tube.
6. An atmospheric particulate matter detection device for environmental protection according to claim 5, characterized in that, A support ring is fixedly installed on the upper inner side of the second telescopic tube, a plane bearing is installed on the upper part of the support ring, the bottom of the rotating support shaft is sleeved in the plane bearing and the support ring, a deep groove ball bearing is installed on the top of the second telescopic tube, and the rotating support shaft is sleeved in the deep groove ball bearing.
7. An atmospheric particulate matter detection device for environmental protection according to claim 2, characterized in that, One side of the arc-shaped switch door is hinged to the side wall of the hollow cylinder. A first connecting plate is fixedly installed on the other side of the arc-shaped switch door. A second connecting plate opposite to the first connecting plate is installed on the side wall of the hollow cylinder. A through hole is provided on both the first and second connecting plates.
8. An atmospheric particulate matter detection device for environmental protection according to claim 1, characterized in that, Several fixing holes are provided on the support base.