An automatic alarm individual dust sampler

Abstract

The utility model discloses an individual dust sampler of automatic alarm relates to dust sampler technical field, the utility model discloses a sampling box and filter plate, the filter plate surface is established with round hole, the inside of round hole is provided with the press ring, the filter membrane is provided with between the press ring, the filter plate below is provided with the collection tray, the filter plate back is provided with the apron, the apron back is provided with the buckle plate, the buckle plate central position is provided with the connecting air pipe, the one end of connecting air pipe is provided with the micro air compressor, the utility model discloses the air compressor to the filter plate carries out the air extraction, and the filter membrane on the filter plate carries out the filtration, and the big particle dust is blocked, and the impact is adsorbed on the filter membrane or through gravity and falls to the collection tray, and the dust particle falls to the collection tray also is convenient for the subsequent sampling work, and sampling collection is also more relaxed and convenient, and the data is more accurate.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust samplers, specifically, it relates to an automatic alarm individual dust sampler. Background Technology

[0002] A dust sampler is a portable device used to collect dust samples from dusty air. Measuring the concentration of dust in the air is necessary not only for safety management but also to provide a scientific basis for researching dust prevention, reduction, and removal measures. Using a sampler to measure dust is a widely recognized and highly accurate method, extensively used in disease prevention, environmental monitoring, occupational safety, work safety supervision, military, scientific research and teaching, metallurgy, petrochemicals, railways, building materials, and other sectors for hygiene monitoring and evaluation. It is specifically used to determine the average dust concentration in the air within production work areas.

[0003] Chinese patent CN208505705U discloses a dust sampler, relating to the technical field of dust sampling devices. The key technical feature is a housing with a sampler inlet at the top, connected to a dust sampling component. Multiple sampler outlets are located on one side of the housing. A miniature vacuum pump is housed inside the housing, with a miniature vacuum pump inlet and outlet on one side. The miniature vacuum pump inlet is connected to the sampler inlet via a pipe, and the miniature vacuum pump outlet is connected to the sampler outlet via a pipe. The existing technology can detect air dust content by comparing the mass of the filter membrane before and after collection, but this requires removing the membrane for weighing. During this process, adhering dust particles are easily shaken off, causing errors in the measurement results.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic alarm individual dust sampler, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An automatic alarm personal dust sampler includes: a sampling box, characterized in that: a front baffle is provided on the front of the sampling box; an insertion port is provided on the top of the sampling box near the front; a filter plate is provided inside the insertion port; a circular hole is provided on the surface of the filter plate; a pressure ring is provided inside the circular hole; a filter membrane is provided between the pressure rings; a collection tray is provided below the filter plate; a cover plate is provided on the back of the filter plate; a buckle plate is provided on the back of the cover plate; a connecting air pipe is provided at the center of the buckle plate; a miniature air compressor is provided at one end of the connecting air pipe; a support plate is provided at the bottom of the miniature air compressor; a support plate is provided at the bottom of the support plate; an air outlet is provided on the side of the sampling box; and a back plate is provided on the back of the sampling box.

[0008] Optionally, a weight sensor is provided at the bottom of the collection tray, a micro-sensing chip is provided on one side of the weight sensor, a control panel is provided on the side of the sampling box on the other side of the air outlet, and a warning light is provided on the top of the control panel.

[0009] Optionally, the filter plate is installed at a downward angle.

[0010] Optionally, a brush is provided on the top inner side of the sampling box, which is attached to the front of the filter plate.

[0011] Optionally, a retaining plate is provided at the bottom of the front baffle.

[0012] Optionally, a handle is provided at the center of the top of the sampling box, and a handle is provided on the top of the filter plate.

[0013] Optionally, a shock-absorbing pad is provided between the tray and the support plate.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. This automatic alarm individual dust sampler uses an air compressor to draw air from the filter plate. External gas enters the sampling chamber through the front baffle and is filtered by the filter membrane on the filter plate. Large dust particles are blocked and either collide with the filter membrane and are adsorbed or fall onto the collection tray by gravity. The filtered gas is discharged from the air outlet, thus completing the filtration work of the device. The filter plate can be pulled out from the insertion port, and the filter membrane on the filter plate can be cleaned by the brush inside the sampling chamber, making it easy to clean the filter plate. The dust particles falling onto the collection tray also facilitate subsequent sampling work, making sampling and collection easier and more convenient, and the data more accurate.

[0016] 2. This automatic alarm individual dust sampler, after a large number of dust particles are adsorbed on the filter plate, more and more dust particles fall to the collection tray. The weight sensor records the weight change of the collection tray, and the micro-sensing chip confirms the threshold. When the critical value is reached, the warning light on the control panel will sound an alarm to remind that the dust quality has reached the standard and to start the sampling and collection work. At the same time, the filter plate needs to be cleaned to prevent clogging.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the bottom of the collection tray of this utility model;

[0021] Figure 3 This is a schematic diagram of the back of the present invention;

[0022] Figure 4 This is a schematic diagram of the interior of the back panel of this utility model;

[0023] Figure 5 This is a cross-sectional view of the present invention;

[0024] Figure 6 This is an exploded view of the filter plate of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Sampling box; 101. Insertion port; 102. Air outlet; 103. Handle; 2. Front baffle; 3. Collection tray; 301. Weight sensor; 302. Micro-sensor chip; 4. Filter plate; 401. Handle; 402. Round hole; 403. Pressure ring; 404. Filter membrane; 5. Buckle plate; 6. Cover plate; 7. Connecting air pipe; 8. Mini air compressor; 801. Support plate; 9. Support plate; 901. Anti-vibration pad; 10. Back plate; 11. Control panel; 1101. Warning light; 12. Brush; 13. Clamping plate.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figure 1-6 As shown, this embodiment provides an automatic alarm-equipped individual dust sampler, including: a sampling box 1.

[0030] like Figure 1-6 As shown, the sampling box 1 in this embodiment has a front baffle 2 on its front side, an insertion port 101 on the top of the sampling box 1 near the front, a filter plate 4 inside the insertion port 101, a circular hole 402 on the surface of the filter plate 4, a pressure ring 403 inside the circular hole 402, a filter membrane 404 between the pressure rings 403, a collection tray 3 below the filter plate 4, a cover plate 6 on the back of the filter plate 4, a buckle plate 5 on the back of the cover plate 6, a connecting air pipe 7 at the center of the buckle plate 5, a miniature air compressor 8 at one end of the connecting air pipe 7, a support plate 801 at the bottom of the miniature air compressor 8, a support plate 9 at the bottom of the support plate 801, an air outlet 102 on the side of the sampling box 1, and a back plate 10 on the back of the sampling box 1; wherein, the sampling box 1 is divided into two chambers, front and rear, by the filter plate 4 in the middle, and the miniature air compressor 8 The sampler is mounted on a tray 801 and supported and fixed at both ends by a support plate 9 fixed to the inner wall of the sampling box 1. The micro air compressor 8 is connected to the buckle plate 5 at one end and the air outlet 102 at the other end by connecting air pipes 7. The cover plate 6 between the buckle plate 5 and the filter plate 4 has holes symmetrical to the round holes 402, which disperse the suction force into each round hole 402. The filter membrane 404 is fixed inside the round hole 402 by front and rear pressure rings 403. The suction force generated by the micro air compressor 8 allows external gas to pass through multiple sets of square holes on the front baffle 2 and enter the sampling box 1. After passing through the filter membrane 404, large dust particles are blocked and either collide with the filter membrane 404 and are adsorbed or fall onto the collection tray 3 by gravity. The filtered gas is discharged from the air outlet 102, thus realizing the filtration work of the device.

[0031] like Figure 2As shown, a weight sensor 301 is provided at the bottom of the collection tray 3 in this embodiment, and a micro-sensing chip 302 is provided on one side of the weight sensor 301. A control panel 11 is provided on the other side of the sampling box 1, located at the air outlet 102. An alarm light 1101 is provided on the top of the control panel 11. There are five weight sensors 301 at the bottom of the collection tray 3, located at the four corners and the center of the collection tray 3. When a lot of dust falls from the filter plate 4 onto the collection tray 3, the overall weight of the collection tray 3 will increase. After the pressure on the weight sensor 301 increases, the data is transmitted to the micro-sensing chip 302 through the line for recording, and finally displayed on the control panel 11. When the corresponding weight threshold is entered on the control panel 11, when the corresponding dust particle weight is reached, the alarm light will automatically sound to remind that the current dust concentration is high and the filter plate 4 needs to be cleaned.

[0032] like Figure 5 As shown, the filter plate 4 in this embodiment is installed at a downward angle; wherein, the filter plate 4 is inserted into the sampling box 1 through the top insertion port 101, so that dust particles that cannot be adsorbed on the filter plate 4 can more easily fall onto the collection tray 3 by gravity. Most of the round holes 402 of the filter plate 4 are concentrated at the top, and there are fewer round holes 402 near the collection tray 3, thereby reducing the suction force at the collection tray 3 and avoiding affecting the dust particles at the collection tray 3.

[0033] like Figure 5 As shown, in this embodiment, a brush 12 is provided on the top inner side of the sampling box 1, which is attached to the front of the filter plate 4. When the filter plate 4 is pulled outward from the insertion port 101, the filter film 404 on the surface comes into contact with the brush 12, brushing off the dust particles adhering to the filter plate 4 and causing them to fall into the collection tray 3, thus quickly cleaning the filter plate 4.

[0034] like Figure 1 As shown, a retaining plate 13 is provided at the bottom of the front baffle 2 in this embodiment; wherein, the retaining plate 13 can be removed from the front baffle 2 to facilitate the removal of the collection tray 3 inside the sampling box 1 for cleaning of dust.

[0035] like Figure 1 As shown, a handle 103 is provided at the center of the top of the sampling box 1 in this embodiment, and a handle 401 is provided on the top of the filter plate 4. The handle 401 of the filter plate 4 facilitates the installation and removal of the filter plate 4, and the overall insertion into the insertion port 101 makes adjustment more convenient. The handle 103 of the sampling box 1 facilitates the movement and transportation of the entire device. The device cannot be moved when it is working to prevent interference with the data acquisition of the weight sensor 301.

[0036] like Figure 4As shown, a shock-absorbing pad 901 is provided between the pallet 801 and the support plate 9 in this embodiment. The miniature air compressor 8 will generate large vibrations during operation. The shock-absorbing pad 901 absorbs the vibrations transmitted from the pallet 801, thereby reducing interference with the weight sensor 301 at the bottom and making the data measurement more accurate. By removing the back plate 10 on the back, it is convenient to install and adjust the pipeline of the entire miniature air compressor 8 on the back.

[0037] Working principle: The miniature air compressor 8 generates suction on the back of the filter plate 4 through the connecting air pipe 7. Dust-laden air from outside enters the sampling box 1 through the front baffle 2. When it passes through the filter membrane 404 on the filter plate 4, large dust particles are blocked and adsorbed on the surface of the membrane, or fall naturally into the collection tray 3 below due to gravity. The filtered clean air is discharged through the air outlet 102, completing the air sampling and filtration process. When the dust accumulated on the filter membrane 404 increases, some particles will fall into the collection tray 3 due to gravity or airflow impact. The weight at the bottom of the collection tray... The detector 301 monitors the changes in dust weight in real time and processes the data through the micro-sensor chip 302. Once the preset threshold is reached, the warning light 1101 on the control panel 11 will automatically alarm, prompting the operator to collect dust or clean the filter plate. The card plate 13 at the bottom of the front baffle is removed to facilitate the removal of the collection tray 3. During the cleaning process, the filter plate 4 can be pulled out from the insertion port 101 through the handle 401. At this time, the brush 12 on the top of the inner side of the sampling box will automatically brush away the residual dust attached to the filter membrane 404, ensuring that the filter plate is clean and extending its service life.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An automatically alarming individual dust sampler, comprising: A sampling box (1) is characterized in that a front baffle (2) is provided on the front of the sampling box (1), an insertion port (101) is provided on the top of the sampling box (1) near the front, a filter plate (4) is provided inside the insertion port (101), a round hole (402) is provided on the surface of the filter plate (4), a pressure ring (403) is provided inside the round hole (402), a filter membrane (404) is provided between the pressure rings (403), and a collection tray (3) is provided below the filter plate (4). The filter plate (4) has a cover plate (6) on its back, and a buckle plate (5) on its back. A connecting air pipe (7) is provided at the center of the buckle plate (5). A miniature air compressor (8) is provided at one end of the connecting air pipe (7). A support plate (801) is provided at the bottom of the miniature air compressor (8). A support plate (9) is provided at the bottom of the support plate (801). An air outlet (102) is provided on the side of the sampling box (1). A back plate (10) is provided on the back of the sampling box (1).

2. The automatic alarm personal dust sampler according to claim 1, characterized in that, The bottom of the collection tray (3) is provided with a weight sensor (301), and a micro-sensing chip (302) is provided on one side of the weight sensor (301). The side of the sampling box (1) is provided with a control panel (11) on the other side of the air outlet (102), and a warning light (1101) is provided on the top of the control panel (11).

3. The automatic alarm personal dust sampler according to claim 2, characterized in that, The filter plate (4) is installed at a downward angle.

4. The automatic alarm personal dust sampler according to claim 1, characterized in that, The sampling box (1) has a brush (12) attached to the top of the inner side of the filter plate (4) on the front.

5. An automatic alarm-equipped individual dust sampler according to claim 2, characterized in that, A retaining plate (13) is provided at the bottom of the front baffle (2).

6. The automatic alarm personal dust sampler according to claim 1, characterized in that, The sampling box (1) is provided with a handle (103) at the top center position, and the filter plate (4) is provided with a handle (401) at the top.

7. The automatic alarm personal dust sampler according to claim 1, characterized in that, A shock-absorbing pad (901) is provided between the pallet (801) and the support plate (9).

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