Comprehensive sampler for particulate matters in ambient air

Abstract

The utility model relates to the field of air particulate matters, in particular to an environment air particulate matter comprehensive sampler which comprises a collecting box, the collecting box is communicated with an air inlet pipe and an air outlet pipe, an arc-shaped filter screen is fixedly installed on the inner wall of the air outlet pipe, a blocking plate is installed on the inner side of the air outlet pipe in a sliding and penetrating mode, and the top end of the blocking plate is fixedly connected with the telescopic end of an electric push rod. An arc-shaped block is slidably connected into an inner cavity of the air inlet pipe, an arc-shaped block auxiliary moving assembly is arranged on one side of the arc-shaped block, and a sampling assembly is arranged between the collecting box and the air outlet pipe; after sufficient particles are collected, the second motor continues to work, the mounting frame still rotates, particles left on the air particle collecting net can be vibrated off, in the process, the particles are prevented from overflowing through the arc-shaped filter net and the arc-shaped block, and the situation that an operator absorbs a large number of air particles is avoided.

Description

Technical Field

[0001] The utility model relates to the field of air particles, in particular to a comprehensive sampler for ambient air particles. Background Art

[0002] Particulate matter, also known as dust, is a variety of solid or liquid particles uniformly dispersed in an aerosol system. Particulate matter can be divided into primary particulate matter and secondary particulate matter. Primary particulate matter is particulate matter that is released into the atmosphere by direct pollution sources to cause pollution, such as soil particles, sea salt particles, combustion smoke, etc. A sampler is needed to detect particulate matter in the air. Existing air particulate samplers, such as a comprehensive sampler for ambient air particulate matter with publication number CN217304532U, include a sampler housing, which is arranged in a cylindrical shape, and a top cover is fastened and installed on the top of the sampler housing, and a drive motor is fixedly installed on the top of the top cover; the output shaft of the drive motor passes through the bottom of the top cover and is connected with a transmission shaft; an air particle capture net is arranged on the outside of the transmission shaft; an air inlet pipe is arranged in the middle position of one side of the sampler housing, and the air inlet pipe is connected to the inside of the sampler housing, and an exhaust fan is arranged on the opposite side of the air inlet pipe.

[0003] When the above sampler is in use, the air particles are captured by the exhaust fan. However, when the driving motor is started to shake the air particles adsorbed on the air particle capture net into the sampling cup, it is inevitable that the air particles will be scattered into the air through the gaps in the exhaust fan and the air intake pipe, which will cause the operator to easily absorb a large amount of air particles and endanger the operator's health. For this reason, we propose an environmental air particle comprehensive sampler. Utility Model Content

[0004] The utility model aims to provide a comprehensive sampler for ambient air particulate matter, comprising a collection box, the collection box being connected to an air inlet pipe and an air outlet pipe, an arc-shaped filter being fixedly installed on the inner wall of the air outlet pipe, a blocking plate being slidably installed on the inner side of the air outlet pipe, the top of the blocking plate being fixedly connected to the telescopic end of an electric push rod, an arc-shaped block being slidably connected in the inner cavity of the air inlet pipe, an arc-shaped block auxiliary moving component being provided on one side of the arc-shaped block, and a sampling component being provided between the collection box and the air outlet pipe.

[0005] Preferably: the collection box is configured to be cylindrical, the side of the arc filter close to the arc block is flush with the inner wall of the collection box, the side of the arc block close to the arc filter can be flush with the inner wall of the collection box, the end of the air inlet pipe close to the air outlet pipe is flush with the inner wall of the collection box, and the end of the air outlet pipe close to the air inlet pipe is flush with the inner wall of the collection box.

[0006] Preferably: the arc block auxiliary moving assembly includes an L-shaped plate, the L-shaped plate is fixedly connected to the arc block, a screw is threadedly connected to the inner side of the L-shaped plate, one end of the screw is fixedly connected to the driving end of motor 1, and the other end of the screw is rotatably connected to the support frame through a bearing, the support frame and motor 1 are both fixedly connected to the outer wall of the collection box, a guide rod is provided between the outer wall of the collection box and the support frame, and the guide rod slides through the inner side of the L-shaped plate.

[0007] Preferably, the electric push rod is fixedly mounted on a mounting frame, and the mounting frame is fixedly mounted on the top end of the air outlet pipe.

[0008] Preferably: the sampling component includes motor 2, wherein the motor 2 is fixedly mounted on the motor frame and the motor frame is fixedly mounted on the top of the collection box, the driving end of the motor 2 is fixedly connected to the rotating shaft 1, the rotating shaft 1 is rotatably connected to the collection box through a bearing, a group of bevel gear 1 and four groups of mounting frames are fixedly connected on the outer wall of the rotating shaft 1, the bevel gear 1 meshes with the bevel gear 2, the bevel gear 2 is fixedly connected to one end of the rotating shaft 2, the rotating shaft 2 is rotatably connected to two groups of fixed seats through a bearing, and the fixed seat is fixedly mounted on the top of the collection box, the inner wall of the air outlet pipe is fixedly connected to the mounting plate, the mounting plate is rotatably connected to the rotating shaft 3 through a bearing, there is a gap between the mounting plate and the air outlet pipe, the rotating shaft 3 and the rotating shaft 2 are respectively fixedly connected to a group of gears and the two groups of gears are meshed with chains, a group of air particle capture nets are fixedly mounted on the inner sides of the four groups of mounting frames, and the end of the rotating shaft 3 away from the gear is fixedly connected to the suction fan blade.

[0009] Preferably: a plurality of groups of rubber columns are fixedly installed on the inner wall of the collection box, the rubber columns can contact the installation frame, and four groups of the installation frames are respectively fixedly connected to a group of scrapers, and the scrapers can contact the arc filter and the arc block.

[0010] Preferably: four groups of supporting legs are fixedly connected to the bottom of the collection box, the bottom of the collection box is connected to a discharge pipe, and a sampling cup is threadedly connected to the lower end of the outer wall of the discharge pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. After the utility model collects enough particles, the electric push rod is started to drive the blocking plate to move down, and the motor is started to drive the arc block to move into the air intake pipe. During the movement of the arc block, all the particles attached to the inner wall of the air intake pipe are pushed into the inner cavity of the collection box. At this time, the device is as shown in the attached Figure 1 As shown, at this time, the motor 2 continues to work and the mounting frame is still rotating, so that the remaining particles on the air particle collection net can be shaken off. In this process, the arc filter and the arc block are used to prevent the particles from overflowing, so as to prevent the operator from absorbing a large amount of air particles.

[0013] 2. When the utility model is used, the drive of the same group of motors 2 will drive the suction fan blades and the mounting frame to rotate rapidly at the same time. The rapid rotation of the suction fan blades will perform air extraction. The mounting frame will collide with the rubber column during rotation, causing the air particle capture net to vibrate, and the air particles adsorbed on the air particle capture net will be shaken off into the sampling cup, thereby starting the particle vibration while the air extraction work is in progress, thereby improving work efficiency. The rotation of the mounting frame will drive the scraper to rotate, and the rotation of the scraper will continuously clean the arc filter to prevent the arc filter from being blocked. The arc filter is provided so that air particles will not overflow from the outlet pipe during the suction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is another structural schematic diagram of the utility model.

[0016] In the figure: 1. collection box; 2. air inlet pipe; 3. air outlet pipe; 4. arc filter; 5. blocking plate; 6. electric push rod; 7. arc block; 8. arc block auxiliary moving component; 801. L-shaped plate; 802. screw; 803. motor one; 804. support frame; 805. guide rod; 9. mounting frame; 10. sampling component; 1001. motor two; 1002. shaft one; 1003. bevel gear one; 1004. mounting frame; 1005. bevel gear two; 1006. shaft two; 1007. fixing seat; 1008. mounting plate; 1009. shaft three; 1010. gear; 1011. chain; 1012. air particle capture net; 1013. suction fan blade; 11. rubber column; 12. scraper; 13. support leg; 14. discharge pipe; 15. sampling cup. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1 - Figure 2The figure shows a comprehensive sampler for ambient air particulate matter of the utility model, comprising a collection box 1, the collection box 1 is connected to an air inlet pipe 2 and an air outlet pipe 3, an arc filter screen 4 is fixedly installed on the inner wall of the air outlet pipe 3, a blocking plate 5 is slidably installed on the inner side of the air outlet pipe 3, the top of the blocking plate 5 is fixedly connected to the telescopic end of the electric push rod 6, an arc block 7 is slidably connected in the inner cavity of the air inlet pipe 2, an arc block auxiliary moving component 8 is provided on one side of the arc block 7, and a sampling component 10 is provided between the collection box 1 and the air outlet pipe 3.

[0019] The collection box 1 is configured to be cylindrical, and the side of the arc filter 4 close to the arc block 7 is flush with the inner wall of the collection box 1, and the side of the arc block 7 close to the arc filter 4 can be flush with the inner wall of the collection box 1, the end of the air inlet pipe 2 close to the air outlet pipe 3 is flush with the inner wall of the collection box 1, and the end of the air outlet pipe 3 close to the air inlet pipe 2 is flush with the inner wall of the collection box 1; it should be noted that the cross-sections of the outlet pipe 3 and the inlet pipe 2 are both square, and the arc block 7 can fit the inner wall of the inlet pipe 2 around it.

[0020] The arc block auxiliary moving component 8 includes an L-shaped plate 801, which is fixedly connected to the arc block 7. A screw 802 is threadedly connected to the inner side of the L-shaped plate 801. One end of the screw 802 is fixedly connected to the driving end of a motor 803. The other end of the screw 802 is rotatably connected to a support frame 804 through a bearing. The support frame 804 and the motor 803 are both fixedly connected to the outer wall of the collection box 1. A guide rod 805 is provided between the outer wall of the collection box 1 and the support frame 804. The guide rod 805 slides through the inner side of the L-shaped plate 801. When in use, starting the motor 803 will drive the screw 802 to rotate, and the rotation of the screw 802 will drive the L-shaped plate 801 to move, and the movement of the L-shaped plate 801 will drive the arc block 7 to move.

[0021] The electric push rod 6 is fixedly mounted on the mounting frame 9, and the mounting frame 9 is fixedly mounted on the top of the air outlet pipe 3, so that the mounting structure of the electric push rod 6 is stable.

[0022] The sampling component 10 includes a motor 2 1001, the motor 2 1001 is fixedly mounted on a motor frame and the motor frame is fixedly mounted on the top of the collection box 1, the driving end of the motor 2 1001 is fixedly connected to the rotating shaft 1 1002, the rotating shaft 1002 is rotatably connected to the collection box 1 through a bearing, a group of helical gears 1003 and four groups of mounting frames 1004 are fixedly connected to the outer wall of the rotating shaft 1002, the helical gear 1003 meshes with the helical gear 2 1005, the helical gear 2 1005 is fixedly connected to one end of the rotating shaft 2 1006, the rotating shaft 2 1006 is rotatably connected to two groups of fixed seats 1007 through a bearing, and the fixed seat 1007 is fixedly mounted on the top of the collection box 1, the inner wall of the outlet pipe 3 is fixedly connected to the mounting plate 1008, the mounting plate 1008 is rotatably connected to the rotating shaft 3 1009 through a bearing, and the mounting plate 1008 is connected to the outlet pipe 3 There is a gap between them, the rotating shaft three 1009 and the rotating shaft two 1006 are respectively fixedly connected to a group of gears 1010 and the two groups of gears 1010 are meshed with chains 1011, and a group of air particle capture nets 1012 are fixedly installed on the inner sides of the four groups of mounting frames 1004, and the end of the rotating shaft three 1009 away from the gear 1010 is fixedly connected to the suction fan blades 1013; during collection, starting the motor two 1001 will drive the rotating shaft one 1002 to rotate, the rotating shaft one 1002 rotates and under the transmission of the bevel gear one 1003 and the bevel gear two 1005, it will drive the rotating shaft two 1006 to rotate, the rotating shaft two 1006 rotates and under the transmission of the gear 1010 and the chain 1011, it will drive the rotating shaft three 1009 to rotate, the rotating shaft three 1009 will drive the suction fan blades 1013 to rotate, and the rotating shaft one 1002 will drive the four groups of mounting frames 1004 to rotate at the same time.

[0023] A plurality of groups of rubber columns 11 are fixedly installed on the inner wall of the collection box 1, and the rubber columns 11 can contact the installation frame 1004. The four groups of the installation frames 1004 are respectively fixedly connected to a group of scrapers 12, and the scrapers 12 can contact the arc filter 4 and the arc block 7; the rotation of the installation frame 1004 will drive the scraper 12 to rotate, and the rotation of the scraper 12 will continuously clean the arc filter 4 to prevent the arc filter from being blocked. At the same time, the arc filter 4 is arranged to prevent particles from overflowing from the exhaust pipe 3; the installation frame 1004 will collide with the rubber column 11 during the rotation process, so that the air particle capture net 1012 vibrates, and the air particles adsorbed on the air particle capture net 1012 are shaken off into the sampling cup 15.

[0024] The bottom of the collection box 1 is fixedly connected to four groups of supporting legs 13, and the bottom of the collection box 1 is connected to a discharge pipe 14, and a sampling cup 15 is threadedly connected to the lower end of the outer wall of the discharge pipe 14; when the sampling work is completed, the sampling cup 15 can be rotated to be removed.

[0025] Working principle of the utility model: When using the device as attached Figure 2As shown, the device is moved to a suitable position, and the starting motor 1001 will drive the suction fan blade 1013 and the installation frame 1004 to rotate rapidly at the same time. The suction fan blade 1013 rotates rapidly to extract air, so that air containing particulate dust enters from the air inlet pipe 2, and then the air is discharged from the air outlet pipe 3. In this process, the particles in the air are filtered by the air particle capture net 1012, and the particulate dust falls on the air particle capture net 1012, and an arc filter 4 is provided to prevent the particles from overflowing from the air outlet pipe 3; at the same time, the installation frame 1004 will contact with the rubber column during the rotation process. 11 collides, causing the air particle collection net 1012 to vibrate, and the air particles adsorbed on the air particle collection net 1012 are vibrated and dropped into the sampling cup 15, and the rotation of the mounting frame 1004 drives the scraper 12 to rotate, and the rotation of the scraper 12 continuously cleans the arc filter 4 to prevent the arc filter 4 from being blocked; when the number of collected particles is sufficient, the electric push rod 6 is started to drive the blocking plate 5 to move downward, and the motor 803 is started to drive the arc block 7 to move into the air inlet pipe 2. During the movement of the arc block 7, all the particles attached to the inner wall of the air inlet pipe 2 are pushed into the inner cavity of the collection box 1. At this time, the device is as shown in the attached Figure 1 As shown, at this time, the motor 2 1001 continues to work and the mounting frame is still rotating, so that the remaining particles on the air particle collection net 1012 can be shaken off. In this process, the arc filter 4 and the arc block 7 are used to prevent the particles from overflowing. At the same time, the blocking plate 5 blocks the air outlet pipe 2, so that the suction fan blades 1013 rotate to generate suction without affecting the inner cavity of the collection box 1.

[0026] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A comprehensive sampler for ambient air particulate matter, comprising a collection box (1), characterized in that: The collection box (1) is connected to an air inlet pipe (2) and an air outlet pipe (3), an arc filter (4) is fixedly installed on the inner wall of the air outlet pipe (3), a blocking plate (5) is slidably installed on the inner side of the air outlet pipe (3), the top of the blocking plate (5) is fixedly connected to the telescopic end of an electric push rod (6), an arc block (7) is slidably connected in the inner cavity of the air inlet pipe (2), an arc block auxiliary moving component (8) is provided on one side of the arc block (7), and a sampling component (10) is provided between the collection box (1) and the air outlet pipe (3).

2. The comprehensive sampler for ambient air particles according to claim 1 is characterized in that: The collection box (1) is configured to be cylindrical, the side of the arc filter (4) close to the arc block (7) is flush with the inner wall of the collection box (1), the side of the arc block (7) close to the arc filter (4) can be flush with the inner wall of the collection box (1), the end of the air inlet pipe (2) close to the air outlet pipe (3) is flush with the inner wall of the collection box (1), and the end of the air outlet pipe (3) close to the air inlet pipe (2) is flush with the inner wall of the collection box (1).

3. The comprehensive sampler for ambient air particles according to claim 1, characterized in that: The arc block auxiliary moving assembly (8) comprises an L-shaped plate (801), the L-shaped plate (801) is fixedly connected to the arc block (7), a screw rod (802) is threadedly connected to the inner side of the L-shaped plate (801), one end of the screw rod (802) is fixedly connected to the driving end of the motor 1 (803), and the other end of the screw rod (802) is rotatably connected to the support frame (804) via a bearing, the support frame (804) and the motor 1 (803) are both fixedly connected to the outer wall of the collection box (1), and a guide rod (805) is provided between the outer wall of the collection box (1) and the support frame (804), and the guide rod (805) slides through the inner side of the L-shaped plate (801).

4. The comprehensive sampler for ambient air particles according to claim 1, characterized in that: The electric push rod (6) is fixedly mounted on a mounting frame (9), and the mounting frame (9) is fixedly mounted on the top end of the air outlet pipe (3).

5. The comprehensive sampler for ambient air particles according to claim 1, characterized in that: The sampling assembly (10) comprises a second motor (1001), wherein the second motor (1001) is fixedly mounted on a motor frame and the motor frame is fixedly mounted on the top of a collection box (1), wherein a driving end of the second motor (1001) is fixedly connected to a first rotating shaft (1002), wherein the first rotating shaft (1002) is rotatably connected to the collection box (1) via a bearing, wherein a group of helical gears (1003) and four groups of mounting frames (1004) are fixedly connected to the outer wall of the first rotating shaft (1002), wherein the first helical gear (1003) meshes with the second helical gear (1005), wherein the second helical gear (1005) is fixedly connected to one end of the second rotating shaft (1006), wherein the second rotating shaft (1006) is rotatably connected to two groups of fixed seats (1006) via a bearing. 7) and the fixing seat (1007) is fixedly installed on the top of the collection box (1), the inner wall of the outlet pipe (3) is fixedly connected to the mounting plate (1008), the mounting plate (1008) is rotatably connected to the rotating shaft three (1009) through a bearing, and there is a gap between the mounting plate (1008) and the outlet pipe (3), the rotating shaft three (1009) and the rotating shaft two (1006) are respectively fixedly connected to a group of gears (1010) and the two groups of gears (1010) are meshed with chains (1011), and a group of air particle capture nets (1012) are fixedly installed on the inner sides of the four groups of mounting frames (1004), and the end of the rotating shaft three (1009) away from the gear (1010) is fixedly connected to the suction fan blade (1013).

6. The comprehensive sampler for ambient air particles according to claim 5, characterized in that: A plurality of groups of rubber columns (11) are fixedly mounted on the inner wall of the collection box (1), and the rubber columns (11) can contact the mounting frame (1004). Four groups of mounting frames (1004) are respectively fixedly connected to a group of scrapers (12), and the scrapers (12) can contact the arc filter (4) and the arc block (7).

7. The comprehensive sampler for ambient air particles according to claim 1, characterized in that: The bottom of the collection box (1) is fixedly connected to four groups of supporting legs (13), the bottom of the collection box (1) is connected to a discharge pipe (14), and the lower end of the outer wall of the discharge pipe (14) is threadedly connected to a sampling cup (15).

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