WO2022000110A1

WO2022000110A1 - Dust monitor

Info

Publication number: WO2022000110A1
Application number: PCT/CN2020/098432
Authority: WO
Inventors: 程实; 林浩; 何明标; 王司鼎
Original assignee: 南通大学
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2022-01-06

Abstract

Disclosed is a dust monitor, comprising a probe tube, a cabinet body, an upright post, a filtering mechanism installed at a top end surface of the probe tube, and a support mechanism installed at an outer surface of the upright post. The filtering mechanism comprises a first support plate. The first support plate is fixedly installed at an outer surface of the probe tube. A rain shield plate is provided at a top end surface of the first support plate. An inner surface of the first support plate is provided with a sliding rod. A top end surface of the sliding rod is provided with an engagement plate. The top end surface of the first support plate is provided with a filter plate. The filter plate is fixedly connected to the first support plate by means of engagement between the engagement plate and the filter plate. The present invention provides a design in which the sliding rod is installed at a bottom end surface of the engagement plate, a spring is provided at an outer surface of the sliding rod, and a position-limiting plate is installed at a bottom end surface of the sliding rod, so as to fix the position of the filter plate by means of the action of the spring, thereby preventing inaccuracy of measurement data caused by probe tube blockage, and facilitating removal of the filter plate.

Description

A dust monitor

technical field

The invention relates to the technical field of dust monitoring instruments, in particular to an anti-blocking dust monitoring instrument.

Background technique

The dust monitor terminal is an open online monitoring terminal that integrates particulate matter online monitor, noise monitor, meteorological parameter sensor, and data acquisition board. It can be used in construction sites, storage yards, residential areas, commercial areas, traffic roads, etc. Quality control area. There are still various problems in the traditional dust monitor, and it is difficult to meet the actual needs of use.

For example, a fugitive dust monitor disclosed in the patent with the authorization announcement number of CN206709877U realizes multi-dimensional integration. In addition to realizing fugitive dust monitoring, it can also measure environmental data such as wind speed, wind direction, temperature and humidity, carbon dioxide, PM2.5, PM10, etc. , but it does not solve the problem that after the monitor has been used for a long time, the detection pipe is blocked by dust or catkins, which affects the monitoring accuracy of the device, and after the monitor has been installed for a long time, the monitor will slide due to loosening of screws. It even slips, thus affecting the stability of the monitor. For this reason, we propose a dust monitor.

technical problem

The purpose of the present invention is to provide a dust monitor, so as to solve the problem that when the monitor is used for a long time, the detection pipe is blocked by dust or catkins, which affects the monitoring accuracy of the device, and the monitor is installed at the time of installation. After a long time, the monitor will slide down or even slip off due to the loosening of the screws, which will affect the stability of the monitor.

technical solutions

In order to achieve the above purpose, the present invention provides the following technical solutions: a dust monitoring instrument, comprising a probe tube, a box body, a column, a filter mechanism installed on the top surface of the probe tube and a support mechanism installed on the outer surface of the column, the filter mechanism It includes a first support plate, the first support plate is fixedly installed on the outer surface of the probe, the top surface of the first support plate is provided with a rain-proof baffle, and the inner surface of the first support plate is provided with a sliding rod , the top surface of the sliding rod is provided with a clamping plate, the top surface of the first support plate is provided with a filter plate, and the filter plate is fixedly connected to the first supporting plate through the clamping plate and the filter plate. The bottom end surface of the rod is provided with a limiting plate, the outer surface of the sliding rod is provided with a spring, and the spring is fixedly connected with the first support plate and the limiting plate.

beneficial effect

Compared with the prior art, the beneficial effects of the present invention are as follows.

(1) By designing the sliding rod installed on the bottom surface of the card plate, the spring set on the outer surface of the sliding rod, and the limit plate installed on the bottom surface of the sliding rod, it is convenient to fix the position of the filter plate by the action of the spring, Thus, the functions of preventing inaccurate measurement data caused by clogging of the probe tube and facilitating the disassembly of the filter plate are realized.

(2) By designing the snap ring installed on the rear end surface of the box, the second support plate and the third support plate installed on the outer surface of the column, and the fastening bolts connected with the snap ring through threads and connected with the pressure rod The rubber pad is convenient for fixing the box body, so as to ensure the stability of the box body installation and the functions of facilitating the disassembly and installation of the box body.

Description of drawings

FIG. 1 is a schematic structural diagram of a first three-dimensional monitor of the present invention.

FIG. 2 is a second-three-dimensional structural schematic diagram of the monitor of the present invention.

FIG. 3 is a three-dimensional structural schematic diagram of the filter mechanism of the monitor of the present invention.

FIG. 4 is a schematic structural diagram of the cross section of the filter mechanism of the monitor of the present invention.

FIG. 5 is a partially enlarged structural schematic diagram of part A in FIG. 2 of the present invention.

In the figure: 1-box door; 2-wind direction detection equipment; 3-probe pipe; 4-wind detection equipment; 5-box body; 6-post; 7-first support plate; 8-rainproof baffle; 9- Filter plate; 10-card plate; 11-slide rod; 12-spring; 13-limiting plate; 14-second support plate; 15-snap ring; 16-third support plate; 17-positioning rod; 18-rubber Pad; 19-fastening bolt; 20-pressing rod.

Embodiments of the present invention

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 5 , a dust monitoring instrument in this embodiment includes: a probe tube 3 , a box body 5 , a column 6 , a filter mechanism installed on the top surface of the probe tube 3 , and a support mechanism installed on the outer surface of the column 6 . . The filter mechanism includes a first support plate 7, the first support plate 7 is fixedly installed on the outer surface of the probe tube 3, the top surface of the first support plate 7 is provided with a rain baffle 8, and the inner surface of the first support plate 7 is provided with a rain shield 8. The sliding rod 11, the top surface of the sliding rod 11 is provided with a clamping plate 10, the top surface of the first support plate 7 is provided with a filter plate 9, and the filter plate 9 is fixed to the first supporting plate 7 through the clamping plate 10 and the filter plate 9 Connection, the bottom surface of the sliding rod 11 is provided with a limiting plate 13 , the outer surface of the sliding rod 11 is provided with a spring 12 , and the spring 12 is fixedly connected to the first support plate 7 and the limiting plate 13 .

In order to facilitate the stable installation of the box body 5 , in this embodiment, preferably, the support mechanism includes a second support plate 14 and a third support plate 16 , and the second support plate 14 and the third support plate 16 are both arranged outside the column 6 . The rear end surface of the box body 5 is provided with a snap ring 15, one side surface of the snap ring 15 is penetrated with a positioning rod 17, the positioning rod 17 is arranged on one side surface of the pressing rod 20, and the pressing rod 20 is opposite to one side of the snap ring 15. The side surface is provided with a rubber pad 18, the inner surface of the pressure rod 20 is provided with a fastening bolt 19, the inner surface of the snap ring 15 is provided with an internal thread, the outer surface of the fastening bolt 19 is provided with an external thread, and the snap ring 15 passes through the clamping ring. The inner thread of the inner surface of the ring 15 is screwed with the outer thread of the outer surface of the fastening bolt 19 to be fixedly connected with the column 6 .

In order to facilitate the operation of the device, in this embodiment, a box door 1 is provided on the front end surface of the box body 5, a wind direction detection device 2 is provided on one edge of the top surface of the box body 5, and the other side of the top surface of the box body 5 is provided. A wind detection device 4 is arranged at the edge, and a probe tube 3 is arranged at the corner of the top surface of the box body 5 .

In order to ensure the stability of the card board 10 , in this embodiment, there are two sliding bars 11 .

In order to facilitate the fixing of the filter plate 9, in this embodiment, the inner surface of the card plate 10 is provided with a groove, the cross-sectional dimension of the groove is the same as that of the filter plate 9, and the thickness of the filter plate 9 is the same as the depth of the groove.

In order to facilitate the movement of the sliding rod 11 , in this embodiment, the top surface of the first support plate 7 is provided with a through hole, and the cross-sectional size of the through hole is the same as that of the sliding rod 11 . sliding connection.

In order to facilitate the connection between the snap ring 15 and the column 6, in this embodiment, the cross-sectional shape of the snap ring 15 is U-shaped, the width of the inner surface of the snap ring 15 is the same as the cross-sectional diameter of the column 6, and the height of the snap ring 15 is the same as that of the second The distance between the support plate 14 and the third support plate 16 is the same.

In order to facilitate the stable installation of the device, in this embodiment, the positioning rod 17 and the snap ring 15 are slidably connected, and the positioning rod 17 and the pressing rod 20 are connected by welding. for arc.

The working principle and use process of the present invention: after the installation of the device is completed, the limit plate 13 is moved, the movement of the limit plate 13 makes the spring 12 in a compressed state, the movement of the limit plate 13 drives the movement of the sliding rod 11, and the sliding rod 11 The movement of the clamping plate 10 drives the movement of the clamping plate 10, and the movement of the clamping plate 10 causes the filter plate 9 to slide down from the clamping plate 10, thereby cleaning the filter plate 9, thereby preventing the probe tube 3 from being blocked and causing inaccurate measurement data, and at the same time facilitating the The function of dismantling the filter plate 9; move the box 5, make the snap ring 15 fit the column 6, and at the same time make the snap ring 15 placed between the second support plate 14 and the third support plate 16, move the pressure rod 20, make The positioning rod 17 passes through the snap ring 15, and the tightening bolt 19 is rotated, so that the tightening bolt 19 and the snap ring 15 are screwed together. Through the action of the rubber pad 18, the position of the box body 5 is fixed at the same time, thereby realizing the guarantee of the box body 5. The stability of the installation, as well as the function of facilitating the disassembly and installation of the box body 5.

In addition to the above-described embodiments, the present invention may also have other embodiments. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

A dust monitoring instrument, comprising a probe tube (3), a box body (5), a column (6), a filter mechanism installed on the top surface of the probe tube (3), and a support mechanism installed on the outer surface of the column (6), wherein It is characterized in that: the filtering mechanism comprises a first support plate (7), the first support plate (7) is fixedly installed on the outer surface of the probe pipe (3), and the top surface of the first support plate (7) is provided with There is a rain-proof baffle (8), a sliding rod (11) is provided on the inner surface of the first support plate (7), and a clamping plate (10) is provided on the top surface of the sliding rod (11). The top surface of a support plate (7) is provided with a filter plate (9), and the filter plate (9) is fixedly connected to the first support plate (7) through the clamping plate (10) and the filter plate (9), so The bottom end surface of the sliding rod (11) is provided with a limiting plate (13), the outer surface of the sliding rod (11) is provided with a spring (12), and the spring (12) is connected to the first support plate (7) It is fixedly connected with the limit plate (13).
A dust monitoring instrument according to claim 1, characterized in that: the supporting mechanism comprises a second supporting plate (14) and a third supporting plate (16), the second supporting plate (14) and the third supporting plate (14) and the third supporting plate (16). The support plates (16) are arranged on the outer surface of the upright column (6), the rear end surface of the box body (5) is provided with a snap ring (15), and a positioning rod penetrates one side surface of the snap ring (15). (17), the positioning rod (17) is provided on one side surface of the pressing rod (20), and a rubber pad (18) is provided on the side surface of the pressing rod (20) opposite to the snap ring (15), and the The inner surface of the pressing rod (20) is provided with a fastening bolt (19), the inner surface of the snap ring (15) is provided with an inner thread, and the outer surface of the fastening bolt (19) is provided with an outer thread, and the The snap ring (15) is fixedly connected to the column (6) by screwing the inner thread on the inner surface of the snap ring (15) with the outer thread on the outer surface of the fastening bolt (19).
A dust monitoring instrument according to claim 1, characterized in that: the front end surface of the box body (5) is provided with a box door (1), and one side edge of the top end surface of the box body (5) A wind direction detection device (2) is provided, the other side edge of the top surface of the box body (5) is provided with a wind force detection device (4), and the probe tube (3) is arranged on the top surface of the box body (5). corners.
The dust monitoring instrument according to claim 1, characterized in that: there are two sliding rods (11) in total, and the two sliding rods (11) are equidistantly arranged around the axis of the clamping plate (10). , the sliding rod (11) is fixedly connected with the clamping plate (10).
A dust monitoring instrument according to claim 1, characterized in that: the inner surface of the card plate (10) is provided with a groove, and the cross-sectional size of the groove is the same as that of the filter plate (9), The thickness of the filter plate (9) is the same as the depth of the groove.