Atmosphere sampler capable of increasing collection flow

Abstract

The invention belongs to the technical field of environment detection, and particularly relates to an air sampler capable of increasing collection flow, which comprises an air guide convex cylinder, two threads are arranged on the inner side wall of the air guide convex cylinder, and are respectively close to the top end and the bottom end of the air guide convex cylinder; the bottom end of the air guide protruding cylinder is sleeved with a fixing plate in a threaded mode, the bottom end of the fixing plate and the bottom end of the air guide protruding cylinder are located at the same height, a round hole is formed in the center of the fixing plate, a supporting rod is slidably inserted into the round hole, three inserting grooves are formed in the supporting rod at equal intervals, and the lowest inserting groove is located at the bottom end of the supporting rod. The parts which are mutually spliced and connected in a sleeved mode form layered filtration from top to bottom, the situation that the airflow velocity is reduced and even blockage is caused by excessive accumulation of single-layer filtered matter is prevented, the adjacent parts are also easy to disassemble, a collecting device where the filtered matter is located is conveniently taken out subsequently, and the device is also convenient to disassemble and assemble subsequently for local cleaning or maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of environmental detection, and in particular to an atmospheric sampler capable of increasing collection flow. Background Art

[0002] An atmospheric sampler is a device used to collect air samples for analysis and study of air quality. These devices are widely used in environmental monitoring, pollution source tracking, meteorological research, and scientific research.

[0003] Atmospheric samplers with increased collection flow rates are designed to increase the collection rate of air samples in order to more effectively collect and analyze pollutants, gases or particulate matter in the atmosphere. However, large flow rate collection will place a greater load on the instrument and will not facilitate subsequent collection and cleaning.

[0004] To solve the above problems, we proposed an atmospheric sampler that increases the collection flow rate. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an atmospheric sampler with increased collection flow rate.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an atmospheric sampler for increasing the collection flow rate, comprising an air guide convex cylinder, wherein two threads are arranged on the inner side wall of the air guide convex cylinder and are respectively close to the top and bottom ends of the air guide convex cylinder, a fixing plate is arranged on the threaded sleeve of the bottom end of the air guide convex cylinder and the bottom end of the fixing plate is at the same height as the bottom end of the air guide convex cylinder, a circular hole is arranged at the center of the fixing plate, a support rod is slidably inserted into the circular hole, three slots with equal distances are arranged on the support rod and the lowest slot is located at the bottom end of the support rod, The top thread sleeve of the air guide convex cylinder is provided with an air intake cylinder, the outer wall of the bottom end of the air intake cylinder is provided with a thread and meshed with the top thread of the air guide convex cylinder, the top of the air intake cylinder is fixedly connected with four vertically arranged support arc blocks and is arranged rotationally symmetrically about the center of the air intake cylinder, the tops of the four support arc blocks are commonly fixedly connected with a cover, the interior of the air intake cylinder is horizontally connected with a support seat arranged in a cross shape, the center of the support seat is arranged in a circular shape and fixedly provided with a motor, and the driving end of the motor is connected with four rotationally symmetrically arranged fan blades;

[0007] The three slots on the support rod are all arranged in a circular ring shape, and the support rod is vertically provided with air guide box 1, air guide box 2 and air guide box 3, which are symmetrically arranged in pairs. The air guide box 1, air guide box 2 and air guide box 3 are linearly arranged in a vertical state, and the air guide box 1, air guide box 2 and air guide box 3 are all arranged in a crescent shape of the same size and their bottom ends are provided with a protrusion smaller than their radius, and the protrusion can be slidably inserted in the top of the air guide box 1 and the air guide box 2, and the air guide box 1 and the air guide box 2 are vertically provided with a baffle near the bottom end of the support rod and the middle part of the baffle is arranged in a semicircular ring shape, and the middle part of the baffle is provided with An insert block with the same diameter as the slot is located at the bottom end of the baffle, filter plates 1 and 2 with different radii are vertically arranged inside the air guide box 1 and air guide box 2, the top heights of the filter plates 1 and 2 are lower than the top height of the baffle, and a slide groove is formed between the filter plates 1 and 2, a sealing cover for preventing gas from passing is horizontally arranged between the filter plate 2 and the baffle inside the air guide box 1, an air guide hole 1 with the same shape as the sealing cover is opened at the bottom end of the air guide box 1 and is located directly below the sealing cover, and a crescent-shaped air guide hole 2 is opened at the bottom end of the air guide box 2 and is located between the inner side wall of the air guide box and the filter plate 1 inside it;

[0008] The bottom end of the support rod is vertically connected with a threaded rod, and the two air guide boxes are jointly provided with an exhaust box, an internal blower of the exhaust box, and a top cover for protecting the blower is provided on the top of the blower. The top cover is vertically connected with a threaded sleeve and threadedly mounted on the threaded rod, and a plurality of exhaust holes are provided on the outer wall of the exhaust box and close to the bottom end of the exhaust box.

[0009] In the above-mentioned atmospheric sampler for increasing the collection flow rate, the bottom end of the exhaust box is rotatably connected to four vertically arranged pulleys and is rotationally symmetrically arranged about the center of the exhaust box, and handles are horizontally connected to the outer walls of the air guide box one, the air guide box two and the air guide box three, and a horizontally arranged lifting handle is fixedly sleeved on the outer wall of the air guide convex cylinder.

[0010] In the above-mentioned atmospheric sampler for increasing the collection flow rate, vertical small holes are arranged inside the support rod and the threaded rod, a battery pack is arranged inside the exhaust box, and a wire is inserted into the small hole to connect the battery pack with the motor.

[0011] In the above-mentioned atmospheric sampler for increasing the collected flow rate, the cover is arranged as a boss and its outer diameter is larger than the outer diameter of the air inlet cylinder, and the bottom end of the cover is at the same height as the middle of the supporting arc block.

[0012] In the above-mentioned atmospheric sampler for increasing the collection flow rate, the internal configuration of the gas guide box three is consistent with that of the gas guide box one, and the gas guide boxes one, two and three are sealed and sleeved in pairs.

[0013] In the above-mentioned atmospheric sampler for increasing the collection flow rate, the areas of the first air guide hole and the second air guide hole are the same.

[0014] In the above-mentioned atmospheric sampler for increasing the collected flow rate, the middle portion of the air guide convex cylinder is arranged in an arc shape, and the handle is located between the top and the middle portion of the air guide convex cylinder.

[0015] In the above-mentioned atmospheric sampler for increasing the collection flow rate, a plurality of arc-shaped air holes are provided on the fixing plate, and the plurality of air holes are arranged in rotational symmetry with respect to the center of the fixing plate.

[0016] Compared with the existing technology, the advantages of this atmospheric sampler with increased collection flow are:

[0017] 1. The device is connected to the whole device through a support rod, and the adjacent parts are combined together by threaded sleeve or plug-in method. When sampling, the handle 29 can be lifted upward, so that the gas guide box 1, the gas guide box 2 and the gas guide box 3 located in the middle of the device can be taken out by pulling the handle and the filtered materials inside are collected for sampling and testing. In the subsequent cleaning process, the components can be lightly disassembled from top to bottom, or pulled out, or rotated out, and each component is also easy to clean.

[0018] 2. This device increases the air flow rate through the device through the upper and lower exhaust mechanisms. The air guide box 1, air guide box 2 and air guide box 3 located in the middle of the device form layered filtration from top to bottom through filter plate 1, filter plate 2, air guide hole 1 and air guide hole 2 to prevent blockage caused by excessive accumulation in a single layer and reduce the air flow rate.

[0019] In summary, the components of the present invention are spliced ​​and socketed with each other to form a layered filtration from top to bottom, which prevents excessive accumulation of filter material in a single layer, resulting in a reduction in airflow velocity or even blockage. Adjacent components are also easy to disassemble, which facilitates the subsequent removal of the collection device where the filter material is located, and also facilitates the subsequent disassembly and assembly of the device for local cleaning or maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an atmospheric sampler for increasing the collection flow rate proposed by the present invention;

[0021] Figure 2 A three-dimensional diagram of a top component of an atmospheric sampler for increasing the collection flow rate proposed by the present invention;

[0022] Figure 3 This is a disassembled diagram of the top component of an atmospheric sampler for increasing the collection flow rate proposed by the present invention;

[0023] Figure 4A schematic diagram of the middle split structure of an atmospheric sampler for increasing the collection flow rate proposed by the present invention;

[0024] Figure 5 A schematic diagram showing the comparative structure of the gas guide box 1 and the gas guide box 2 in an atmospheric sampler for increasing the collection flow rate proposed by the present invention;

[0025] Figure 6 This is a schematic structural diagram of the bottom portion of an atmospheric sampler for increasing the collection flow rate proposed by the present invention.

[0026] In the figure: 1 air guide convex cylinder, 2 fixing plate, 3 support rod, 4 slot, 5 air inlet cylinder, 6 support arc block, 7 cover, 8 support seat, 9 motor, 10 fan blade, 11 wire, 12 air guide box one, 13 air guide box two, 14 air guide box three, 15 baffle, 16 plug, 17 filter plate one, 18 cover, 19 filter plate two, 20 air guide hole one, 21 air guide hole two, 22 handle, 23 threaded rod, 24 exhaust box, 25 machine top cover, 26 threaded sleeve, 27 exhaust hole, 28 pulley, 29 handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1-Figure 6 , an atmospheric sampler for increasing the collection flow rate, comprising an air guide convex cylinder 1, two threads are arranged on the inner side wall of the air guide convex cylinder 1 and are respectively close to the top and bottom of the air guide convex cylinder 1, a fixing plate 2 is arranged on the bottom thread of the air guide convex cylinder 1, and the bottom end of the fixing plate 2 is at the same height as the bottom end of the air guide convex cylinder 1, a plurality of arc-shaped air holes are arranged on the fixing plate 2, and the plurality of air holes are arranged rotationally symmetrically about the center of the fixing plate 2, a circular hole is arranged in the center of the fixing plate 2, a support rod 3 is slidably inserted in the circular hole, three slots 4 with equal distances are arranged on the support rod 3, and the lowest slot 4 is located at the bottom end of the support rod 3, the top thread of the air guide convex cylinder 1 is provided with an inlet Air cylinder 5, the outer wall of the bottom end of the air inlet cylinder 5 is provided with a thread and meshed with the top thread of the air guide convex cylinder 1, the top end of the air inlet cylinder 5 is fixedly connected with four vertically arranged support arc blocks 6 and is arranged rotationally symmetrically about the center of the air inlet cylinder 5, the top ends of the four support arc blocks 6 are commonly fixedly connected with a cover 7, the cover 7 is arranged in a boss shape and its outer diameter is larger than the outer diameter of the air inlet cylinder 5, the bottom end of the cover 7 is at the same height as the middle of the support arc block 6, the inside of the air inlet cylinder 5 is horizontally connected with a support seat 8 arranged in a cross shape, the center of the support seat 8 is arranged in a circular shape and fixedly provided with a motor 9, and the driving end of the motor 9 is connected with four rotationally symmetrically arranged fan blades 10;

[0029] The three slots 4 on the support rod 3 are all arranged in a circular ring. The support rod 3 is vertically provided with a gas guide box 1 12, a gas guide box 2 13 and a gas guide box 3 14, which are arranged symmetrically in pairs. The gas guide box 1 12, the gas guide box 2 13 and the gas guide box 3 14 are arranged linearly in a vertical state. The gas guide box 1 12, the gas guide box 2 13 and the gas guide box 3 14 are all arranged in a crescent shape of the same size and the bottom ends thereof are all provided with a convex block smaller than the radius thereof, and the convex block can be slidably inserted between the gas guide box 1 12 and the gas guide box The top of the air guide box 12 and the air guide box 13 are vertically provided with a baffle 15 near the bottom of the support rod 3, and the middle part thereof is arranged in a semicircular ring. The middle part of the baffle 15 is provided with an insert block 16 having the same diameter as the slot 4 and located at the bottom end of the baffle 15. The insides of the air guide box 12 and the air guide box 13 are vertically provided with filter plates 17 and 19 of different radii. The top heights of the filter plates 17 and 19 are lower than the top height of the baffle 15, and the filter plates 17 and 19 are arranged at the bottom end of the baffle 15. A slide groove is formed between the filter plate 19 and the filter plate 19, and a cover 18 for preventing gas from passing is horizontally arranged between the filter plate 19 and the baffle 15 inside the air guide box 12. A gas guide hole 20 with the same shape as the cover 18 is opened at the bottom of the air guide box 12 and is located directly below the cover 18. A crescent-shaped gas guide hole 21 is opened at the bottom of the air guide box 13 and is located between the inner side wall of the air guide box 13 and the filter plate 17 inside it. The area of ​​the gas guide hole 20 and the gas guide hole 21 is The same, the internal configuration of the air guide box three 14 is consistent with that of the air guide box one 12, the air guide box one 12, the air guide box two 13 and the air guide box three 14 are sealed and sleeved in pairs, the air guide holes one 20, the air guide holes two 21, the filter plate one 17 and the filter plate two 19 in the air guide box one 12, the air guide box two 13 and the air guide box three 14 form an air flow channel from top to bottom, different filter layers are inserted into the slide grooves at different positions, and different levels of filtering are performed to prevent the accumulation of filtered objects in a single part;

[0030] The bottom end of the support rod 3 is vertically connected with a threaded rod 23, and the two air guide boxes 14 are jointly sleeved with an exhaust box 24. The exhaust box 24 has a blower inside, and a top cover 25 for protecting the blower is arranged on the top of the blower. The top cover 25 is vertically connected with a threaded sleeve 26 and is threadedly sleeved on the threaded rod 23. Vertical small holes are arranged inside the support rod 3 and the threaded rod 23. A battery pack is arranged inside the exhaust box 24, and a wire 11 is inserted into the small hole to connect the battery pack with the motor 9. A plurality of exhaust holes 27 are arranged on the outer wall of the exhaust box 24 and close to the bottom end of the exhaust box 24.

[0031] At the beginning, lift the air guide convex cylinder 1 upwards, pull out the air guide box 1 12, the air guide box 2 13 and the air guide box 3 14 from top to bottom, insert different filter layers into the slide grooves inside each of them, and then assemble them from bottom to top, and put down the air guide convex cylinder 1 to seal the middle part of the device, and then start the motor 9 and the blower located in the exhaust box 24 to make the air flow inhaled through the top of the air inlet cylinder 5. The fixed plate 2 located in the air guide convex cylinder 1 prevents large particles or flying insects from entering the middle part. The filter layers in the air guide boxes 1 12, the air guide boxes 2 13 and the air guide boxes 3 14 perform layered filtration on the subsequent gases to prevent the box body where a single filter layer is located from filtering too much material, resulting in the inability of the air flow to pass through, causing the air flow rate to decrease or be blocked. After the collection is completed, the air guide boxes 12, the air guide boxes 2 13 and the air guide boxes 3 14 can be taken out for sampling in batches.

[0032] The bottom end of the exhaust box 24 is rotatably connected to four vertically arranged pulleys 28 and is rotationally symmetrical about the center of the exhaust box 24, so as to facilitate moving the device to various places for collection. The outer walls of the air guide box 1 12, the air guide box 2 13 and the air guide box 3 14 are horizontally connected with handles 22, and the outer wall of the air guide convex cylinder 1 is fixedly sleeved with a horizontally arranged lifting handle 29. The middle part of the air guide convex cylinder 1 is arranged in an arc shape, and the lifting handle 29 is located between the top and the middle part of the air guide convex cylinder 1.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An atmospheric sampler for increasing the collection flow rate, comprising an air guide convex cylinder (1), characterized in that: The inner wall of the air guide convex cylinder (1) is provided with two threads, which are respectively close to the top and bottom of the air guide convex cylinder (1); the bottom end of the air guide convex cylinder (1) is threadedly sleeved with a fixing plate (2), and the bottom end of the fixing plate (2) is at the same height as the bottom end of the air guide convex cylinder (1); a circular hole is provided at the center of the fixing plate (2), and a support rod (3) is slidably inserted into the circular hole; three slots (4) with equal distances are provided on the support rod (3), and the lowest slot (4) is located at the bottom end of the support rod (3); the top end of the air guide convex cylinder (1) is threadedly sleeved with an air inlet cylinder (5), and the air inlet cylinder (5) is provided with a screw thread sleeve. The outer wall of the bottom end of the cylinder (5) is provided with a thread and meshes with the top thread of the air guide convex cylinder (1); the top end of the air intake cylinder (5) is fixedly connected to four vertically arranged support arc blocks (6) and is arranged rotationally symmetrically about the center of the air intake cylinder (5); the top ends of the four support arc blocks (6) are commonly fixedly connected to a cover (7); the interior of the air intake cylinder (5) is horizontally connected to a support seat (8) arranged in a cross shape; the center of the support seat (8) is arranged in a circular shape and fixedly provided with a motor (9); the driving end of the motor (9) is connected to four rotationally symmetrically arranged fan blades (10); The three slots (4) on the support rod (3) are all arranged in a circular ring shape. The support rod (3) is vertically provided with air guide box one (12), air guide box two (13) and air guide box three (14) which are arranged symmetrically in pairs. The air guide box one (12), air guide box two (13) and air guide box three (14) are linearly arranged in a vertical state. The air guide box one (12), air guide box two (13) and air guide box three (14) are all arranged in a crescent shape of the same size and their bottom ends are all provided with a protrusion smaller than their radius. The protrusion can be slidably inserted in the top of the air guide box one (12) and the air guide box two (13). The air guide box one (12) and the air guide box two (13) are vertically provided with a baffle (15) near the bottom end of the support rod (3) and the middle part of the baffle is arranged in a semicircular ring shape. The middle part of the baffle (15) is provided with an insert block with the same diameter as the slot (4). (16) and located at the bottom end of the baffle (15), the interiors of the air guide box one (12) and the air guide box two (13) are vertically provided with filter plates one (17) and filter plates two (19) of different radii, the top heights of the filter plates one (17) and filter plates two (19) are lower than the top height of the baffle (15), and a slide groove is formed between the filter plates one (17) and filter plates two (19), a sealing cover (18) for preventing gas from passing is horizontally provided between the filter plates two (19) and the baffle (15) inside the air guide box one (12), the bottom end of the air guide box one (12) is provided with an air guide hole one (20) of the same shape as the sealing cover (18) and is located directly below the sealing cover (18), and the bottom end of the air guide box two (13) is provided with a crescent-shaped air guide hole two (21) and is located between the inner side wall of the air guide box two (13) and the filter plate one (17) inside it; The bottom end of the support rod (3) is vertically connected to a threaded rod (23); the two air guide boxes (14) are commonly sleeved with an exhaust box (24); the exhaust box (24) has an internal blower; the top of the blower is provided with a top cover (25) for protecting the blower; the top cover (25) is vertically connected to a threaded sleeve (26) and is threadedly sleeved on the threaded rod (23); a plurality of exhaust holes (27) are provided on the outer wall of the exhaust box (24) and are close to the bottom end of the exhaust box (24).

2. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The bottom end of the exhaust box (24) is rotatably connected to four vertically arranged pulleys (28) and is rotationally symmetrically arranged about the center of the exhaust box (24); the outer walls of the air guide box 1 (12), the air guide box 2 (13) and the air guide box 3 (14) are horizontally connected to handles (22); the outer wall of the air guide convex cylinder (1) is fixedly sleeved with a horizontally arranged handle (29).

3. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The support rod (3) and the threaded rod (23) are provided with vertical small holes inside, the exhaust box (24) is provided with a battery pack inside, and a wire (11) is inserted into the small hole to connect the battery pack with the motor (9).

4. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The cover (7) is arranged in the form of a boss and its outer diameter is greater than the outer diameter of the air inlet cylinder (5). The bottom end of the cover (7) is at the same height as the middle of the supporting arc block (6).

5. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The internal configuration of the air guide box three (14) is consistent with that of the air guide box one (12), and the air guide box one (12), the air guide box two (13) and the air guide box three (14) are sealed and sleeved in pairs.

6. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The areas of the first air guide hole (20) and the second air guide hole (21) are the same.

7. The atmospheric sampler for increasing the collection flow rate according to claim 1, characterized in that: The middle portion of the air guide convex cylinder (1) is arranged in an arc shape, and the handle (29) is located between the top and the middle portion of the air guide convex cylinder (1).

8. The air sampler for increasing the collection flow rate according to claim 1, characterized in that: The fixing plate (2) is provided with a plurality of arc-shaped air holes, and the plurality of air holes are arranged rotationally symmetrically with respect to the center of the fixing plate (2).

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