Atmospheric particulate sampler

Abstract

The utility model relates to an atmospheric particulate sampler which comprises a base, the top end of the base is fixedly connected with a sliding rod, the outer wall of the sliding rod is slidably connected with a limiting plate, the middle of the limiting plate is fixedly connected with the bottom end of a collecting box, the top end of the interior of the collecting box is fixedly connected with a limiting frame, and the interior of the limiting frame is slidably connected with a first mounting frame. A first supporting frame is fixedly connected to the interior of the first mounting frame, a second supporting frame is fixedly connected to the interior of the first mounting frame, a second mounting frame is slidably connected to the interior of the second supporting frame, and a filter screen is fixedly connected to the interior of the second mounting frame. The air is filtered step by step along the filter screen and becomes smaller layer by layer through the arranged pores, particulate matter with different particle sizes can be conveniently collected, the motor is started to drive the lead screw to rotate, the lead screw drives the screw sleeve to rotate, and the collecting box is pushed to move upwards.

Description

Technical Field

[0001] The utility model relates to the technical field of atmospheric particle samplers, in particular to an atmospheric particle sampler. Background Art

[0002] Atmospheric particulate matter is a general term for various solid and liquid particulate matter present in the atmosphere. Various particulate matter are evenly dispersed in the air to form a relatively stable and large suspension system, namely the aerosol system. Therefore, atmospheric particulate matter is also called atmospheric aerosol. More atmospheric particulate matter directly affects the quality of the atmosphere, so it is necessary to sample atmospheric particulate matter.

[0003] According to the description of an atmospheric particle sampler disclosed on the patent website (authorization announcement number: CN217237378U), "The utility model discloses an atmospheric particle sampler, including a bottom plate, the upper surface of the bottom plate is fixedly connected to a collecting box, and one side surface of the collecting box is provided with an air outlet channel, the inner wall of the air outlet channel is fixedly connected to a support rod, and one end of the support rod is fixedly connected to a fan, a filter membrane is provided at one end of the air outlet channel, and a vibration mechanism is provided on one side surface of the filter membrane, a funnel is provided below the air outlet channel, and a collecting bottle is provided below the funnel, and an air inlet is provided on the upper surface of the collecting box. When sampling atmospheric particles, the filter membrane in the sampling device can be vibrated, thereby avoiding blockage of the filter membrane after long-term use, and avoiding inaccurate detection of the samples taken. Secondly, it is convenient for people to use it later and improves the practicality of the sampling device."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] The existing atmospheric particle sampler is not convenient for layered filtration of particles in the air, filtering and collecting particles of different diameters separately, and is not convenient for quickly disassembling the internal collection device. Therefore, it is necessary to improve an atmospheric particle sampler to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the utility model provides an atmospheric particulate sampler, which has a stable structure and can stably clamp the plate to be processed, thereby achieving precise control of the drilling position and convenient operation.

[0007] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0008] An atmospheric particulate sampler comprises a base, a sliding rod is fixedly connected to the top of the base, a limiting plate is slidably connected to the outer wall of the sliding rod, a bottom end of a collecting box is fixedly connected to the middle of the limiting plate, a limiting frame is fixedly connected to the top of the collecting box, a first mounting frame is slidably connected to the limiting frame, a second supporting frame is fixedly connected to the first mounting frame, a second mounting frame is slidably connected to the second supporting frame, and a filter is fixedly connected to the second mounting frame.

[0009] As an improvement, a first support frame is fixedly connected to the rear side of the top end of the base, a motor is fixedly connected to the top end of the first support frame, and a lead screw is fixedly connected to the output end of the motor.

[0010] As an improvement, the bottom end of the screw rod is fixedly connected to the middle part of the bearing, and the bottom end of the bearing is fixedly connected to the top end of the base.

[0011] As an improvement, the interior of the collection box is fixedly connected to a chassis, and the top of the chassis is slidably connected between the interior of the collection box and the first mounting frame.

[0012] As an improvement, a fan is fixedly installed inside the chassis, and the top of the chassis and the first mounting frame are connected to each other.

[0013] As an improvement, the pores of the filter mesh become narrower layer by layer from top to bottom.

[0014] Compared with the prior art, the utility model has the following advantages: air is introduced along the top of the collection box by starting the fan, and the air is filtered step by step along the filter screen, and the apertures are gradually reduced by the provided apertures, so that particulate matter of different particle sizes can be collected conveniently; the screw rod is driven to rotate by the starting motor, and the screw rod drives the wire sleeve to rotate and pushes the collection box to move upward, so that the height of the collection device can be adjusted conveniently; sliding bars are provided on both sides of the collection box to increase its stability; and the first mounting frame is pulled out from the interior of the collection box and the second mounting frame is slid out from the interior of the second support frame to facilitate disassembly layer by layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a main perspective schematic diagram of an atmospheric particulate sampler of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of an atmospheric particulate sampler of the utility model;

[0017] Figure 3 The utility model is an atmospheric particulate matter sampler Figure 2 A partial enlarged schematic diagram in the middle.

[0018] Reference table of reference numerals:

[0019] 1. Base; 2. Slide rod; 3. Limit plate; 4. Collection box; 5. First support frame; 6. Motor; 7. Screw rod; 8. Filter; 9. Bearing; 10. Thread sleeve; 11. Air vent; 12. Chassis; 13. Fan; 14. First mounting frame; 15. Limit frame; 16. Second support frame; 17. Second mounting frame. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-3 As shown, an atmospheric particulate sampler comprises a base 1, the top of the base 1 is fixedly connected to a slide rod 2, the outer wall of the slide rod 2 is slidably connected to a limit plate 3, the middle part of the limit plate 3 is fixedly connected to the bottom end of a collection box 4, the top of the collection box 4 is fixedly connected to a limit frame 15, the limit frame 15 is slidably connected to a first mounting frame 14, the first mounting frame 14 is fixedly connected to a second support frame 16, the second support frame 16 is slidably connected to a second mounting frame 17, the second mounting frame 17 is fixedly connected to a filter screen 8, the pores of the filter screen 8 become narrower layer by layer from top to bottom, the fan 13 is started to rotate to introduce air along the top of the collection box 4, and the air is filtered step by step along the filter screen 8, and the pores are gradually reduced by the set pores, so that particulate matter of different particle sizes can be collected easily.

[0022] A first support frame 5 is fixedly connected to the rear side of the top of the base 1, a motor 6 is fixedly connected to the top of the first support frame 5, a screw rod 7 is fixedly connected to the output end of the motor 6, the bottom end of the screw rod 7 is fixedly connected to the middle part of the bearing 9, and the bottom end of the bearing 9 is fixedly connected to the top of the base 1. By starting the motor 6 to drive the screw rod 7 to rotate, the screw rod 7 drives the wire sleeve 10 to rotate and pushes the collection box 4 to move upward, so as to facilitate the adjustment of the height of the collection device.

[0023] The collection box 4 is fixedly connected to a chassis 12, and the top of the chassis 12 is slidably connected between the inside of the collection box 4 and a first mounting frame 14. A fan 13 is fixedly installed inside the chassis 12, and the top of the chassis 12 and the first mounting frame 14 are interconnected. Slide rods 2 are provided on both sides of the collection box 4 to increase its stability. The first mounting frame 14 is pulled out of the collection box 4, and the second mounting frame 17 is slid out of the second support frame 16 to facilitate disassembly layer by layer.

[0024] When the utility model is working, the air is first introduced along the top of the collection box 4 by starting the fan 13, and the air is filtered step by step along the filter screen 8. The pores are gradually reduced by the set pores, which is convenient for collecting particulate matter of different particle sizes. The screw rod 7 is driven to rotate by the starting motor 6, and the screw rod 7 drives the wire sleeve 10 to rotate and push the collection box 4 to move upward, which is convenient for adjusting the height of the collection device. By arranging sliding bars 2 on both sides of the collection box 4, its stability is increased. By pulling the first mounting frame 14 out of the interior of the collection box 4 and by sliding the second mounting frame 17 out of the interior of the second support frame 16, it is convenient to disassemble layer by layer.

[0025] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. An atmospheric particulate matter sampler, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a slide bar (2), the outer wall of the slide bar (2) is slidably connected to a limit plate (3), the middle of the limit plate (3) is fixedly connected to the bottom of the collection box (4), the top of the interior of the collection box (4) is fixedly connected to a limit frame (15), the interior of the limit frame (15) is slidably connected to a first mounting frame (14), the interior of the first mounting frame (14) is fixedly connected to a second support frame (16), the interior of the second support frame (16) is slidably connected to a second mounting frame (17), and the interior of the second mounting frame (17) is fixedly connected to a filter screen (8).

2. An atmospheric particulate matter sampler according to claim 1, characterized in that: A first support frame (5) is fixedly connected to the rear side of the top end of the base (1), a motor (6) is fixedly connected to the top end of the first support frame (5), and a lead screw (7) is fixedly connected to the output end of the motor (6).

3. An atmospheric particulate sampler according to claim 2, characterized in that: The bottom end of the screw rod (7) is fixedly connected to the middle part of the bearing (9), and the bottom end of the bearing (9) is fixedly connected to the top end of the base (1).

4. The atmospheric particulate matter sampler according to claim 1, characterized in that: The interior of the collection box (4) is fixedly connected to a machine box (12), and the top end of the machine box (12) is slidably connected between the interior of the collection box (4) and the first mounting frame (14).

5. An atmospheric particulate matter sampler according to claim 4, characterized in that: A fan (13) is fixedly installed inside the chassis (12), and the top end of the chassis (12) and the first mounting frame (14) are interconnected.

6. The atmospheric particulate matter sampler according to claim 1, characterized in that: The pores of the filter screen (8) become narrower layer by layer from top to bottom.

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