Atmospheric particulate sampling device with filter membrane convenient to replace

Abstract

The utility model relates to the technical field of atmospheric particulate sampling, and discloses an atmospheric particulate sampling device convenient for replacing a filter membrane, which comprises a main body mechanism and a supporting mechanism. According to the atmospheric particulate sampling device convenient to replace the filter membrane, through installation of the main body mechanism, air is pumped into the sampling box from the air inlet through the sampling assembly during sampling, particulate matters in the air are filtered out through the filter membrane and then are discharged from the air outlet, a movable cover can be opened when the filter membrane needs to be replaced, and the filter membrane can be replaced conveniently. After the movable cover is opened, the reset spring loses the pressure applied by the movable cover and then resets, so that the U-shaped mounting frame is ejected out of the sampling box, a user can conveniently pull out the filter membrane from the U-shaped mounting frame, then, after a new filter membrane is mounted in the U-shaped mounting frame, the U-shaped mounting frame is pressed downwards to enable the reset spring to contract, and finally, the movable cover is closed to complete replacement. The atmospheric particulate sampling device is simple in structure and convenient to use, the filter membrane can be conveniently and rapidly replaced, and the practicability of the atmospheric particulate sampling device convenient to replace the filter membrane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atmospheric particle sampling, in particular to an atmospheric particle sampling device which is convenient for replacing a filter membrane. Background Art

[0002] Air pollution is a phenomenon in which certain substances enter the atmosphere due to human activities or natural processes and present sufficient concentrations to endanger the comfort and health of the human body. With the rapid development of people's economy, industrial production is one of the main factors that produce air pollutants. The pollutants produced by industrial production mainly include dust, smoke droplets, floating dust and suspended matter. These pollutants have caused people living near factories to face increasing environmental pressure.

[0003] Existing technology uses atmospheric particulate sampling devices to perform random sampling near atmospheric pollution sources in real time, and detects the pollution source and content based on the collected gas samples, so as to carry out targeted remediation of factories or other pollution sources. However, the existing sampling devices are not convenient for replacing filter membranes during use, which makes them more troublesome to use and reduces the effectiveness of use. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model aims to provide an atmospheric particulate matter sampling device with easy replacement of filter membranes, so as to solve the problem in the above background technology that the existing sampling devices are not easy to replace filter membranes during use, which is troublesome to use and reduces the use effect.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an atmospheric particulate sampling device that is convenient for replacing filter membranes, comprising a main body mechanism and a supporting mechanism, wherein the supporting mechanism is located at the lower end of the main body mechanism, the main body mechanism comprises a sampling box, an air inlet and a sampling assembly, wherein the air inlet is fixedly arranged at the left end of the sampling box, and the sampling assembly is fixedly installed inside the sampling box;

[0008] Preferably, the main body mechanism also includes a U-shaped mounting frame, a filter membrane, a movable cover, a return spring, an air outlet and a control panel, wherein the U-shaped mounting frame is movably installed inside the sampling box, the filter membrane is movably installed inside the U-shaped mounting frame, the movable cover is movably installed on the upper end of the sampling box, the return spring is fixedly installed below the U-shaped mounting frame, the air outlet is fixedly arranged at the right end of the sampling box, and the control panel is fixedly installed at the front end of the sampling box. During sampling, air is drawn into the sampling box from the air inlet through the sampling component, and the particulate matter in the air is filtered out through the filter membrane and then discharged from the air outlet. When the filter membrane needs to be replaced, the movable cover can be opened. After the movable cover is opened, the return spring is reset after losing the pressure applied by the movable cover, thereby pushing the U-shaped mounting frame out of the sampling box, making it convenient for the user to extract the filter membrane from the U-shaped mounting frame, and then after installing the new filter membrane in the U-shaped mounting frame, the U-shaped mounting frame is pressed downward to contract the return spring, and finally the movable cover is closed to complete the replacement. The structure is simple, easy to use, and convenient for quick replacement of the filter membrane.

[0009] Preferably, the sampling assembly includes a support frame, a motor and an exhaust fan. The support frame is fixedly installed inside the sampling box, and the motor is conveniently installed on the support frame.

[0010] Preferably, the motor is fixedly mounted on the left end of the support frame, and the exhaust fan is fixedly mounted on the left end of the motor. The exhaust fan can be driven by the motor to operate, thereby drawing air from the air inlet into the sampling box for sampling.

[0011] Preferably, the support mechanism includes a support base, a support column, a threaded connector, a connecting port, a fixed shaft and a fixed plug rod. The support base is fixedly installed under the sampling box. When in use, the support mechanism is removed from the main mechanism to facilitate carrying the sampling device for movement, which can reduce the space occupied by the sampling device and facilitate moving the sampling device to the sampling point.

[0012] Preferably, the support column is fixedly mounted on the upper end of the support seat, the threaded connector is fixedly mounted on the upper end of the support column, and the connecting port is fixedly mounted on the lower end of the sampling box. After reaching the sampling point, the sampling device can be assembled together through the connection between the threaded connector and the connecting port, and then placed on the ground for sampling.

[0013] Preferably, the fixed shaft is fixedly mounted on the outer end of the support column, and the fixed rod is movably mounted on the outer end of the fixed shaft. When the ground is uneven, the fixed rod can be bent down and then inserted into the soil for fixation to prevent the sampling device from tipping over.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The atmospheric particulate sampling device that is easy to replace the filter membrane, through the installation of the main mechanism, realizes that when sampling, air is drawn into the sampling box from the air inlet through the sampling component, and the particulate matter in the air is filtered out through the filter membrane and discharged from the air outlet. When the filter membrane needs to be replaced, the movable cover can be opened. After the movable cover is opened, the return spring is reset after losing the pressure applied by the movable cover, so that the U-shaped mounting frame is pushed out of the sampling box, which is convenient for the user to draw the filter membrane out of the U-shaped mounting frame, and then after installing the new filter membrane in the U-shaped mounting frame, the U-shaped mounting frame is pressed downward to shrink the return spring, and finally the movable cover is closed to complete the replacement. The structure is simple, easy to use, and the filter membrane is easy to replace quickly, thereby improving the practicality of the atmospheric particulate sampling device that is easy to replace the filter membrane;

[0016] 2. The atmospheric particulate sampling device that is easy to replace the filter membrane can be removed from the main body when in use by installing the supporting mechanism, which makes it easy to carry the sampling device and move it, and can reduce the space occupied by the sampling device, and it is convenient to move the sampling device to the sampling point. After arriving at the sampling point, the sampling device can be assembled together through the connection of the threaded connector and the connecting port, and then placed on the ground for sampling. When the ground is uneven, the fixing rod can be broken off, and then the fixing rod can be inserted into the soil to fix it, so as to prevent the sampling device from tipping over, thereby improving the stability of the atmospheric particulate sampling device that is easy to replace the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the main mechanism of the utility model;

[0020] Figure 4 It is a partially enlarged structural schematic diagram of the support mechanism of the utility model.

[0021] In the figure: 1. Main body; 101. Sampling box; 102. Air inlet; 103. Sampling assembly; 1031. Support frame; 1032. Motor; 1033. Exhaust fan; 104. U-shaped mounting frame; 105. Filter membrane; 106. Movable cover; 107. Return spring; 108. Air outlet; 109. Control panel; 2. Support mechanism; 201. Support seat; 202. Support column; 203. Threaded connector; 204. Connecting port; 205. Fixed shaft; 206. Fixed rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution: an atmospheric particulate sampling device that is easy to replace the filter membrane, including a main body mechanism 1 and a support mechanism 2, the support mechanism 2 is located at the lower end of the main body mechanism 1, the main body mechanism 1 includes a sampling box 101, an air inlet 102 and a sampling component 103, the air inlet 102 is fixedly arranged at the left end of the sampling box 101, and the sampling component 103 is fixedly installed inside the sampling box 101.

[0024] The main body mechanism 1 also includes a U-shaped mounting frame 104, a filter membrane 105, a movable cover 106, a return spring 107, an air outlet 108 and a control panel 109. The U-shaped mounting frame 104 is movably mounted inside the sampling box 101, the filter membrane 105 is movably mounted inside the U-shaped mounting frame 104, the movable cover 106 is movably mounted on the upper end of the sampling box 101, the return spring 107 is fixedly mounted below the U-shaped mounting frame 104, the air outlet 108 is fixedly arranged at the right end of the sampling box 101, and the control panel 109 is fixedly mounted at the front end of the sampling box 101. The sampling component 103 includes a support frame 1031, a motor 1032 and an exhaust fan 1033. The support frame 1031 is fixedly mounted inside the sampling box 101, the motor 1032 is fixedly mounted on the left end of the support frame 1031, and the exhaust fan 1033 It is fixedly installed on the left end of the motor 1032. When sampling, the sampling component 103 is started, and the exhaust fan 1033 is driven by the motor 1032 to operate, so that air is drawn into the sampling box 101 from the air inlet 102 for sampling, and the particulate matter in the air is filtered out by the filter membrane 105 and discharged from the air outlet 108. When you want to replace the filter membrane 105, you can open the movable cover 106. After the movable cover 106 is opened, the return spring 107 is reset after losing the pressure applied by the movable cover 106, thereby pushing the U-shaped mounting frame 104 out of the sampling box 101, so that the user can extract the filter membrane 105 from the U-shaped mounting frame 104, and then install the new filter membrane 105 in the U-shaped mounting frame 104, press the U-shaped mounting frame 104 downward to make the return spring 107 contract, and finally close the movable cover 106 to complete the replacement.

[0025] The supporting mechanism 2 includes a supporting seat 201, a supporting column 202, a threaded connector 203, a connecting port 204, a fixed shaft 205 and a fixed plug rod 206. The supporting seat 201 is fixedly installed at the bottom of the sampling box 101, the supporting column 202 is fixedly installed at the upper end of the supporting seat 201, the threaded connector 203 is fixedly installed at the upper end of the supporting column 202, the connecting port 204 is fixedly installed at the lower end of the sampling box 101, the fixed shaft 205 is fixedly installed at the outer end of the supporting column 202, and the fixed plug rod 206 is movably installed at the outer end of the fixed shaft 205. The sampling device can be disassembled before use to reduce the space occupied by the sampling device and facilitate moving the sampling device to the sampling point. After arriving at the sampling point, the sampling device can be assembled together through the connection of the threaded connector 203 and the connecting port 204, and then placed on the ground for sampling. When the ground is uneven, the fixed plug rod 206 can be bent down, and then the fixed plug rod 206 can be inserted into the soil for fixation to prevent the sampling device from tipping over.

[0026] Working principle: The sampling device can be disassembled before use to reduce the space occupied by the sampling device and facilitate moving the sampling device to the sampling point. After arriving at the sampling point, the sampling device can be assembled together through the connection of the threaded connector 203 and the connection port 204, and then placed on the ground for sampling. When the ground is uneven, the fixed plug rod 206 can be bent down, and then the fixed plug rod 206 can be inserted into the soil to fix it to prevent the sampling device from tipping over. When sampling, the sampling component 103 is started, and the exhaust fan 1033 is driven by the motor 1032 to operate, so that air is drawn from the air inlet 102 into the sampling box 101 Sampling is performed inside, and particulate matter in the air is filtered out through the filter membrane 105 and discharged from the air outlet 108. When the filter membrane 105 needs to be replaced, the movable cover 106 can be opened. After the movable cover 106 is opened, the return spring 107 is reset after losing the pressure applied by the movable cover 106, thereby pushing the U-shaped mounting frame 104 out of the sampling box 101, so that the user can extract the filter membrane 105 from the U-shaped mounting frame 104, and then install the new filter membrane 105 in the U-shaped mounting frame 104, press the U-shaped mounting frame 104 downward to make the return spring 107 contract, and finally close the movable cover 106 to complete the replacement.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An atmospheric particulate matter sampling device that is easy to replace a filter membrane, comprising a main body mechanism (1) and a support mechanism (2), characterized in that: The support mechanism (2) is located at the lower end of the main mechanism (1); the main mechanism (1) comprises a sampling box (101), an air inlet (102) and a sampling assembly (103); the air inlet (102) is fixedly arranged at the left end of the sampling box (101); and the sampling assembly (103) is fixedly installed inside the sampling box (101); The main body mechanism (1) further comprises a U-shaped mounting frame (104), a filter membrane (105), a movable cover (106), a return spring (107), an air outlet (108) and a control panel (109); the U-shaped mounting frame (104) is movably mounted inside the sampling box (101); the filter membrane (105) is movably mounted inside the U-shaped mounting frame (104); the movable cover (106) is movably mounted at the upper end of the sampling box (101); the return spring (107) is fixedly mounted below the U-shaped mounting frame (104); the air outlet (108) is fixedly arranged at the right end of the sampling box (101); and the control panel (109) is fixedly mounted at the front end of the sampling box (101).

2. The atmospheric particulate matter sampling device that is easy to replace the filter membrane according to claim 1 is characterized in that: The sampling component (103) comprises a support frame (1031), a motor (1032) and an exhaust fan (1033), and the support frame (1031) is fixedly installed inside the sampling box (101).

3. The atmospheric particulate matter sampling device for easy replacement of filter membrane according to claim 2 is characterized in that: The motor (1032) is fixedly mounted on the left end of the support frame (1031), and the exhaust fan (1033) is fixedly mounted on the left end of the motor (1032).

4. The atmospheric particulate matter sampling device for easy replacement of filter membrane according to claim 3 is characterized in that: The support mechanism (2) comprises a support base (201), a support column (202), a threaded connector (203), a connection port (204), a fixed shaft (205) and a fixed insertion rod (206); the support base (201) is fixedly installed below the sampling box (101).

5. The atmospheric particulate matter sampling device for easy replacement of filter membrane according to claim 4 is characterized in that: The support column (202) is fixedly mounted on the upper end of the support base (201), the threaded connector (203) is fixedly mounted on the upper end of the support column (202), and the connection port (204) is fixedly mounted on the lower end of the sampling box (101).

6. The atmospheric particulate matter sampling device for easy replacement of filter membrane according to claim 5, characterized in that: The fixed shaft (205) is fixedly mounted on the outer end of the support column (202), and the fixed insertion rod (206) is movably mounted on the outer end of the fixed shaft (205).

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