CN219608698U

CN219608698U - Dust concentration sensor

Info

Publication number: CN219608698U
Application number: CN202223501575.0U
Authority: CN
Inventors: 周宇峰; 陈新锋; 王易初; 钱欢; 周瑞峰; 陈媛媛
Original assignee: CHANGSHU DEYU MINE MECHANICAL CO LTD
Current assignee: CHANGSHU DEYU MINE MECHANICAL CO LTD
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-29
Anticipated expiration: 2032-12-27

Abstract

The present utility model relates to a dust concentration sensor, comprising: the shell is provided with a window arranged on the surface of the shell; the sealing mechanism is arranged on the shell and used for sealing the window; the detection mechanism is arranged in the shell and used for detecting dust; the detection mechanism includes: the device comprises a shell, a sampling port, a dust detection chamber, an air pipe, a connecting pipe and a fan, wherein the sampling port is arranged at the top of the shell and is mutually communicated with an inner cavity of the shell, the dust detection chamber is arranged inside the shell and is mutually connected with the sampling port, the air pipe is arranged at the bottom of the dust detection chamber and is communicated with the dust detection chamber, the connecting pipe is arranged at the bottom end of the air pipe and is communicated with the air pipe, and the fan is arranged at the bottom end of the connecting pipe and is used for extracting air. This dust concentration sensor, its through-type structure need not to adopt the filter membrane, consequently can avoid the dust to block up, consequently can uninterrupted long-time work, no matter how the concentration of dust changes, can both report to the police under the condition of exceeding the standard to reduce the dust and to workman's health harm, improved the practicality.

Description

Dust concentration sensor

Technical Field

The utility model relates to the technical field of dust detection, in particular to a dust concentration sensor.

Background

The dust concentration sensor is called a dust meter or a dust tester for short, is mainly used for detecting the dust concentration in the ambient air, and is widely applied to disease prevention control centers, mines, metallurgy, power plants, chemical industry manufacturing, sanitation supervision, environmental protection, environmental on-line monitoring and the like, and alarms when the dust concentration exceeds the standard.

For example, the disclosure of publication number CN210604288U is invented, this handheld dust detector, including the detector body, the probe is installed to the upper end of detector body, and the surface sliding connection of probe has the reinforcement, and the surface threaded connection of the upper end probe of reinforcement has the butt nut, and the surface sliding sleeve of probe has protected the lid, and the surface of probe is provided with the butt ring, is provided with the spring between butt ring and the protection lid. This kind of hand-held type dust detector through reinforcement butt detector body surface, utilizes butt nut butt reinforcement, has increased the area of contact of probe and detector body, and probe surface sliding connection's shield cover gives the buffering when the probe touches the ground through the elasticity of spring to this atress and detector body coupling part are impaired when making to prevent the probe touch the ground, but still have a problem.

At present, the dust concentration is measured mainly by a dust sampler and a direct-reading type dust meter, the dust sampler and the direct-reading type dust meter directly or indirectly need a filter membrane, the dust sampler measures the dust content by a weighing method, the direct-reading type dust meter indirectly measures and reads the dust content by infrared light absorption, the dust content is short in working time and limited in measuring times, and the dust sampler and the direct-reading type dust meter work in an environment with higher dust concentration or work in the dust environment for a long time to easily cause the problems of powder blockage, sensor data deviation and the like.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a dust concentration sensor which has the advantages of no powder blockage and uninterrupted real-time detection of dust concentration.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a dust concentration sensor, comprising:

the shell is provided with a window arranged on the surface of the shell;

the sealing mechanism is arranged on the shell and used for sealing the window;

the detection mechanism is arranged in the shell and used for detecting dust;

the detection mechanism includes: the device comprises a shell, a sampling port, a dust detection chamber, an air pipe, a connecting pipe and a fan, wherein the sampling port is arranged at the top of the shell and is mutually communicated with an inner cavity of the shell, the dust detection chamber is arranged inside the shell and is mutually connected with the sampling port, the air pipe is arranged at the bottom of the dust detection chamber and is communicated with the dust detection chamber, the connecting pipe is arranged at the bottom end of the air pipe and is communicated with the air pipe, and the fan is arranged at the bottom end of the connecting pipe and is used for extracting air.

According to the technical scheme, the sealing performance of the shell after sealing can be improved through the split type setting of the shell and the sealing mechanism, the dustproof and waterproof effect is achieved, the service life of the device is prolonged, the fan can be utilized to generate negative pressure through the setting of the detecting mechanism, the negative pressure can enable external air and dust to enter the dust detecting chamber through the sampling port, then dust detection is achieved through a light scattering method in the dust detecting chamber, after detection, the air and the dust can be discharged out of the shell through the connecting pipe and the fan, circulation is achieved, when the device is located in a dust environment, dust blocking can be avoided through the straight-through structure of the device, the device can work for a long time uninterruptedly, no matter how the concentration of the dust changes, the device can alarm under the condition of exceeding standards, and therefore the physical harm of the dust to workers is reduced, and the practicability is improved.

As a preferable mode of the utility model, one side of the dust detection chamber is provided with a light emitting diode, and the other side of the dust detection chamber is provided with a receiving tube.

According to the technical scheme, the light-emitting diode is used for generating a light source, so that dust detection is performed by using a light scattering method, and the receiving tube can receive the change of the light source caused by dust, so that dust concentration detection is realized.

As a preferable scheme of the utility model, the surface of the dust detection chamber is provided with a mounting plate for mounting a display screen, and the top of the sampling port is sleeved with a sampling upper cover.

Realize above-mentioned technical scheme, the mounting panel of setting can be at its surface mounting display screen, realizes the real-time demonstration of dust concentration, and can be according to concentration variation, the dust growth that what kind of work led to is perceived to realize dust concentration's control, and the sampling upper cover then can be to avoiding great impurity to get into the inside of sampling mouth, realize filterable effect.

As a preferred embodiment of the present utility model, the sealing mechanism includes: the window comprises a rear shell for closing the window, a clamping strip arranged on the outer ring of the window, and a rubber pad arranged on the inner ring of the rear shell and matched with the clamping strip.

According to the technical scheme, when the rear shell is mounted on the shell, the window can be closed, and after the window is closed, the clamping strips are clung to the rubber pads, so that the shell is closed.

As a preferable scheme of the utility model, the rubber pad is made of waterproof silica gel.

According to the technical scheme, the waterproof silica gel material is arranged, so that the sealing performance can be effectively improved, dust is not easy to enter the inside of the shell through the window, and the service life is prolonged.

As a preferable mode of the utility model, an observation window is arranged on the surface of the shell at a position corresponding to the mounting plate, and a transparent plate is arranged in the observation window.

According to the technical scheme, when the display screen is mounted on the mounting plate, the display screen can be displayed through the transparent plate, and due to the fact that the display is mounted in the shell, the influence of dust on the display can be prevented, and the service life of the display is prolonged.

As a preferable scheme of the utility model, one side of the shell is provided with a connecting port communicated with the receiving tube, and the top of the shell is provided with a plurality of alarm lamps connected with the light emitting diodes.

According to the technical scheme, the connection port is convenient to connect with external equipment, the alarm lamp can give an alarm under the condition that the dust concentration exceeds the standard, and workers are prevented from working under the environment that the dust exceeds the standard.

As a preferable scheme of the utility model, the top of the shell is rotatably provided with a handle, and the bottom of the shell is provided with an air outlet corresponding to the fan.

The technical scheme is realized, the handle can be convenient for the device to take, and the air outlet can enable air extracted by the fan to be discharged, so that air circulation is realized, and dust concentration detection can be carried out uninterruptedly.

In summary, the utility model has the following beneficial effects:

according to the dust concentration sensor provided by the embodiment of the utility model, through the arrangement of the detection mechanism, the negative pressure can be generated by the fan, the negative pressure can enable external air and dust to enter the dust detection chamber through the sampling port, then dust detection is realized through a light scattering method in the dust detection chamber, after detection, the air and the dust can be discharged out of the shell through the connecting pipe and the fan, circulation is realized, when the device is positioned in a dust environment, the through structure of the device does not need to adopt a filter membrane, so that dust blocking can be avoided, uninterrupted long-time work can be realized, no matter how the concentration of the dust changes, and alarm can be carried out under the condition of exceeding standards, so that the harm of the dust to the body of workers is reduced, and the practicability is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the structure of the present utility model.

Fig. 2 is a schematic perspective cross-sectional view of the structure of the present utility model.

Fig. 3 is an exploded view of the structure of the present utility model.

Fig. 4 is a schematic structural perspective view of the rear housing of the present utility model.

Corresponding part names are indicated by numerals and letters in the drawings:

1. a housing; 2. a window; 201. a rear housing; 202. clamping strips; 203. rubber cushion; 3. a sampling port; 301. a dust detection chamber; 302. an air duct; 303. a connecting pipe; 304. a blower; 305. a light emitting diode; 306. a receiving tube; 307. a mounting plate; 308. sampling an upper cover; 4. an observation window; 5. a transparent plate; 6. a connection port; 7. an alarm lamp; 8. a handle; 9. and an air outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

A dust concentration sensor as in fig. 1 to 4, comprising: a casing 1, a window 2 formed on the surface of the casing 1; a sealing mechanism arranged on the shell 1 and used for closing the window 2; a detection mechanism for dust detection is arranged inside the shell 1.

The sealing mechanism comprises: a back casing 201 for closing window 2, locate the card strip 202 of window 2 outer lane, and locate the back casing 201 inner circle and with the cushion 203 of card strip 202 looks adaptation, the material of cushion 203 sets up to waterproof silica gel material, when back casing 201 installs on casing 1, then can seal window 2, and seal the back, card strip 202 then can hug closely each other with cushion 203, thereby realize the closure of casing 1, through the setting of waterproof silica gel material, can effectively improve the leakproofness, make the dust be difficult for getting into the inside of casing 1 through window 2 department, increase of service life.

The detection mechanism comprises: the device comprises a sampling port 3 which is arranged at the top of a shell 1 and is mutually communicated with an inner cavity of the shell, a dust detection chamber 301 which is arranged inside the shell 1 and is mutually connected with the sampling port 3, an air pipe 302 which is arranged at the bottom of the dust detection chamber 301 and is communicated with the dust detection chamber, a connecting pipe 303 which is arranged at the bottom end of the air pipe 302 and is communicated with the air pipe, and a fan 304 which is arranged at the bottom end of the connecting pipe 303 and is used for extracting air.

Through the split type setting of casing 1 and sealing mechanism, can improve the leakproofness after casing 1 seals, reach dustproof and waterproof's effect, improve the life of the device, through detection mechanism's setting, can utilize fan 304 to produce negative pressure, the negative pressure can make outside air and dust get into the inside of dust detection room 301 through sampling port 3, then the inside light scattering method of dust detection room 301 realizes dust detection, air and dust then can discharge the inside of casing 1 through connecting pipe 303 and fan 304 after the detection, realize the circulation, when the device is located under the dust environment, its through-type structure can avoid the dust to block up, consequently can uninterrupted long-time work, no matter how the concentration of dust changes, can report to the police under the condition of exceeding standard, thereby reduce the dust and to workman's health harm, the practicality is improved.

One side of the dust detection chamber 301 is provided with a light emitting diode 305, the other side of the dust detection chamber 301 is provided with a receiving tube 306, and the light emitting diode 305 can be used for generating a light source so as to perform dust detection by using a light scattering method, and the receiving tube 306 can be used for receiving the change of the light source due to dust generation so as to realize dust concentration detection.

The surface of dust detection room 301 is equipped with the mounting panel 307 that is used for the display screen installation, and the top cover of sampling mouth 3 is equipped with sampling upper cover 308, and the mounting panel 307 of setting can realize the real-time demonstration of dust concentration at its surface mounting display screen, and can be according to concentration variation, and what kind of work leads to's dust growth is perceived to realize dust concentration's control.

The observation window 4 is formed in the surface of the shell 1 and at the position corresponding to the mounting plate 307, the transparent plate 5 is arranged in the observation window 4, when the display screen is mounted on the mounting plate 307, the display screen can be displayed through the transparent plate 5, and due to the fact that the display is mounted in the shell 1, the influence of dust on the display can be prevented, and the service life of the display is prolonged.

One side of casing 1 is equipped with the connector 6 that communicates each other with receiving tube 306, and the top of casing 1 is equipped with a plurality of warning light 7 that is connected with emitting diode 305, and connector 6 conveniently is connected with external equipment, and warning light 7 can report to the police under the strong condition that exceeds the standard of dust, prevents that the workman from working under the environment that the dust exceeds the standard.

The rotatable handle 8 that is equipped with in top of casing 1, the bottom of casing 1 be equipped with the air outlet 9 corresponding with fan 304, and handle 8 can make things convenient for the device to take, and air outlet 9 can make the air discharge of fan 304 extraction to realize the circulation of air, can incessantly carry out dust concentration detection.

The working principle is that negative pressure can be generated through the operation of the fan 304, so that outside air and dust enter the dust detection chamber 301 through the sampling port 3, then a light source is generated through the light emitting diode 305, the light source irradiates on the receiving tube 306, and when dust passes through, the light source is shielded, so that the dust concentration is detected.

In summary, the utility model has the following beneficial effects:

according to the dust concentration sensor provided by the embodiment of the utility model, through the arrangement of the detection mechanism, negative pressure can be generated by the fan 304, the negative pressure can enable external air and dust to enter the dust detection chamber 301 through the sampling port 3, then dust detection is realized through a light scattering method in the dust detection chamber 301, after detection, the air and the dust can be discharged out of the shell 1 through the connecting pipe 303 and the fan 304, circulation is realized, when the device is positioned in a dust environment, the dust blocking can be avoided through the straight-through structure of the device, so that the device can work for a long time without interruption, and no matter how the concentration of the dust changes, the alarm can be given under the condition of exceeding the standard, so that the harm of the dust to the body of workers is reduced, and the practicability is improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust concentration sensor, comprising:

the shell is provided with a window arranged on the surface of the shell;

the sealing mechanism is arranged on the shell and used for sealing the window;

the detection mechanism is arranged in the shell and used for detecting dust;

2. The dust concentration sensor according to claim 1, wherein a light emitting diode is provided at one side of the dust detection chamber, and a receiving tube is provided at the other side of the dust detection chamber.

3. The dust concentration sensor of claim 1, wherein a mounting plate for mounting a display screen is arranged on the surface of the dust detection chamber, and a sampling upper cover is sleeved on the top of the sampling port.

4. The dust concentration sensor of claim 1, wherein the sealing mechanism comprises: the window comprises a rear shell for closing the window, a clamping strip arranged on the outer ring of the window, and a rubber pad arranged on the inner ring of the rear shell and matched with the clamping strip.

5. The dust concentration sensor of claim 4, wherein the rubber pad is made of waterproof silica gel.

6. A dust concentration sensor according to claim 3, wherein an observation window is provided on the surface of the housing at a position corresponding to the mounting plate, and a transparent plate is provided inside the observation window.

7. The dust concentration sensor of claim 2, wherein one side of the housing is provided with a connection port communicated with the receiving tube, and a plurality of alarm lamps connected with the light emitting diodes are arranged at the top of the housing.

8. The dust concentration sensor of claim 1, wherein a handle is rotatably provided at the top of the housing, and an air outlet corresponding to the fan is provided at the bottom of the housing.