Air sampling device for atmosphere detection

Abstract

The utility model discloses an air sampling device for atmosphere detection, which comprises a shell, a filter cartridge, a negative pressure suction tube and a collection box, and is characterized in that an inner cavity with two open ends is arranged in the shell; the filter cartridge is slidably plugged on the inner side of the arc-shaped fence; the negative pressure suction cylinder is slidably plugged on the inner side of the filter cylinder through a through hole in the baffle, a second inlet corresponding to the first inlet is formed in the negative pressure suction cylinder, and a piston is slidably arranged in the negative pressure suction cylinder; the collecting box is slidably arranged on the outer side of the outlet. Therefore, by adopting the rotatable filter cartridge, the particulate pollutants adhered to the filter cartridge can be cleaned in time, and meanwhile, the filter cartridge, the negative pressure suction barrel and the collection box adopt modular design and are easy to disassemble and clean, so that the efficiency and the performance of the sampling device are remarkably improved, and the aim of more effectively separating the particulate pollutants in the atmospheric environment is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of atmospheric detection, in particular to an air sampling device for atmospheric detection. Background Art

[0002] Atmospheric particulate matter is the general term for various solid and liquid particulate substances existing in the atmosphere; various particulate substances are evenly dispersed in the air to form a relatively stable and huge suspension system, that is, an aerosol system. Therefore, atmospheric particulate matter is also called atmospheric aerosol. The size (particle size) of atmospheric particulate matter is closely related to its properties, and it is one of the main characteristics considered in the sampling and control technology of atmospheric particulate pollutants.

[0003] Currently, traditional air sampling devices for atmospheric detection usually adopt the method of setting a filter screen inside the collector to separate the collected atmospheric particulate pollutants. However, there are some problems with this method. Since the intercepted particles adhering to the filter screen are not easy to clean, the particles are likely to accumulate on the filter plate after long-term operation, resulting in a decrease in the separation effect, thereby reducing the overall efficiency of atmospheric air sampling. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to a certain extent.

[0005] To this end, the purpose of the utility model is to propose an air sampling device for atmospheric detection, which adopts a rotatable filter cartridge, can timely clean the adhered particulate pollutants on the filter cartridge, and at the same time, the filter cartridge, the negative pressure suction cylinder and the collection box all adopt a modular design, which is easy to disassemble and clean, thereby significantly improving the efficiency and performance of the sampling device and achieving the purpose of more effectively separating the collected atmospheric particulate pollutants.

[0006] To achieve the above object, the present utility model provides an air sampling device for atmospheric detection, which includes a housing, a filter cartridge, a negative pressure suction cylinder, and a collection box. Among them, an inner cavity with both ends open is provided inside the housing. Baffles and arc-shaped enclosures are respectively arranged on both sides of the inner cavity. A first inlet and an outlet are provided on the housing, and the first inlet and the outlet are respectively arranged near the upper and lower sides of the arc-shaped enclosure. The filter cartridge is arranged in a cylindrical shape with both ends open, and filter holes are evenly formed on the filter cartridge. The filter cartridge is slidably inserted inside the arc-shaped enclosure. One side of the filter cartridge is provided with a mounting plate, one side of the mounting plate abuts against the outer wall of the housing, and a knob is arranged on the other side of the mounting plate. The negative pressure suction cylinder is arranged in a cylindrical shape. The negative pressure suction cylinder is slidably inserted inside the filter cartridge through a through hole on the baffle, and a second inlet corresponding to the first inlet is arranged on the negative pressure suction cylinder. A piston is slidably arranged inside the negative pressure suction cylinder, and a pull rod is arranged on the side of the piston away from the mounting plate. The pull rod penetrates through the negative pressure suction cylinder. The collection box is slidably arranged outside the outlet.

[0007] The air sampling device for atmospheric detection of the present utility model adopts a rotatable filter cartridge, which can timely clean the adhered particulate pollutants on the filter cartridge. At the same time, the filter cartridge, the negative pressure suction cylinder, and the collection box all adopt a modular design, which is easy to disassemble and clean, thereby significantly improving the efficiency and performance of the sampling device and achieving the purpose of more effectively separating the collected atmospheric particulate pollutants.

[0008] In addition, the air sampling device for atmospheric detection proposed according to the above application may also have the following additional technical features:

[0009] Specifically, one side of the negative pressure suction cylinder abuts against the mounting plate, and the other side of the negative pressure suction cylinder penetrates through the through hole in a threaded manner.

[0010] Specifically, the first inlet extends outward from the housing to form an inlet cylinder, and a cover body is detachably arranged outside the inlet cylinder.

[0011] Specifically, sealing rings are arranged on the piston, the mounting plate, the baffle, and the pull rod.

[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0014] Figure 1Schematic structural diagram of an air sampling device for atmospheric detection according to an embodiment of the present utility model;

[0015] Figure 2 Exploded view of an air sampling device for atmospheric detection according to an embodiment of the present utility model;

[0016] Figure 3 Front view sectional three-dimensional structural diagram of an air sampling device for atmospheric detection according to an embodiment of the present utility model;

[0017] Figure 4 Side view sectional structural diagram of an air sampling device for atmospheric detection according to an embodiment of the present utility model.

[0018] As shown in the figure: 10, housing; 11, inner cavity; 12, first inlet; 121, inlet tube; 122, cover body; 13, outlet; 20, baffle; 21, through hole; 30, arc-shaped enclosure; 40, filter cartridge; 41, filter hole; 50, mounting plate; 60, knob; 70, negative pressure suction cylinder; 71, second inlet; 80, piston; 81, pull rod; 90, collection box. Detailed implementation manners

[0019] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. On the contrary, the embodiments of the present utility model include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0020] The air sampling device for atmospheric detection according to the embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0021] As Figures 1 - 4 shown, the air sampling device for atmospheric detection according to the embodiment of the present utility model may include a housing 10, a filter cartridge 40, a negative pressure suction cylinder 70 and a collection box 90.

[0022] Among them, an inner cavity 11 with both ends open is provided inside the housing 10. A baffle 20 and an arc-shaped enclosure 30 are respectively provided on both sides of the inner cavity 11. A first inlet 12 and an outlet 13 are provided on the housing 10, and the first inlet 12 and the outlet 13 are respectively provided adjacent to the upper and lower sides of the arc-shaped enclosure 30.

[0023] The filter cartridge 40 is provided in a cylindrical shape with both ends open, and filter holes 41 are uniformly provided on the filter cartridge 40. The filter cartridge 40 is slidably inserted inside the arc-shaped enclosure 30. One side of the filter cartridge 40 is provided with a mounting plate 50. One side of the mounting plate 50 abuts against the outer wall of the housing 10, and a knob 60 is provided on the other side of the mounting plate 50.

[0024] It can be understood that the collected atmosphere can enter the housing 10 through the first inlet 12, and the filter cartridge 40 filters the atmosphere. During this process, the relevant personnel can drive the mounting plate 50 and the filter cartridge 40 to rotate through the knob 60, and cooperate with the arranged arc-shaped baffle 20, so as to be able to timely remove the intercepted particulate pollutants on the filter cartridge 40, so that the particulate pollutants can be discharged from the outlet 13 into the collection box 90, realizing the collection of particulate pollutants.

[0025] The negative pressure suction cylinder 70 is arranged in a cylindrical shape. The negative pressure suction cylinder 70 is slidably inserted inside the filter cartridge 40 through the through hole 21 on the baffle 20, and a second inlet 71 corresponding to the first inlet 12 is arranged on the negative pressure suction cylinder 70. A piston 80 is slidably arranged inside the negative pressure suction cylinder 70. A pull rod 81 is arranged on the side of the piston 80 away from the mounting plate 50, and the pull rod 81 penetrates through the negative pressure suction cylinder 70.

[0026] The collection box 90 is slidably arranged outside the outlet 13.

[0027] It should be noted that in this embodiment, the piston 80 is arranged on the side of the second inlet 71 away from the mounting plate 50. When the piston 80 moves inside the negative pressure suction cylinder 70, the negative pressure suction cylinder 70 can perform negative pressure extraction on the outside through the second inlet 71, so that the first inlet 12 sucks the atmosphere to be detected into the housing 10.

[0028] It can be understood that the filter cartridge 40, the negative pressure suction cylinder 70 and the collection box 90 all adopt modular design, which is easy to disassemble and clean, thus significantly improving the efficiency and performance of the separation device and achieving the purpose of more effectively separating atmospheric particulate pollutants.

[0029] Specifically, during the actual operation of sampling the atmospheric air, the relevant personnel first place the device in the corresponding atmospheric environment to be detected, and then drive the piston 80 to move away from the second inlet 71 through the pull rod 81, so that the negative pressure suction cylinder 70 sucks the atmosphere to be detected into the housing 10 through the second inlet 71 and the first inlet 12.

[0030] After the atmosphere enters the inner cavity 11, the filter cartridge 40 can filter and screen the passing atmosphere. The filtered atmosphere enters the negative pressure suction cylinder 70 through the second inlet 71, realizing the collection of the filtered atmosphere. The particulate pollutants intercepted by the filter cartridge 40 are placed between the inner cavity 11 and the filter cartridge 40. During the collection of the atmosphere, the relevant personnel can drive the mounting plate 50 and the filter cartridge 40 to rotate through the knob 60. During the rotation of the filter cartridge 40, the particulate pollutants adhered to the filter cartridge 40 can be timely removed under the action of the arc-shaped baffle 20, so that the particulate pollutants can be discharged from the outlet 13 into the collection box 90, realizing the collection of particulate pollutants.

[0031] Finally, the relevant personnel can separately remove the negative pressure suction cylinder 70 and the collection box 90, thus facilitating subsequent detection work.

[0032] In an embodiment of the present utility model, as Figure 1 and Figure 3 shown, one side of the negative pressure suction cylinder 70 abuts against the mounting plate 50, and the other side of the negative pressure suction cylinder 70 is threadedly penetrated through the through hole 21. It can be understood that the negative pressure suction cylinder 70 can be conveniently disassembled and assembled with the housing 10.

[0033] In an embodiment of the present utility model, as Figure 1 and Figure 3 shown, the first inlet 12 extends outward from the housing 10 to be provided with an inlet cylinder 121, and a cover body 122 is detachably arranged on the outer side of the inlet cylinder 121. It can be understood that the provided cover body 122 can quickly control the on-off state of the first inlet 12.

[0034] Furthermore, sealing rings are arranged on the piston 80, the mounting plate 50, the baffle 20 and the pull rod 81. The provided sealing rings can ensure the stable sealed connection between the housing 10 and the filter cartridge 40, the negative pressure suction cylinder 70 and the collection box 90.

[0035] In summary, the air sampling device for atmospheric detection in the embodiment of the present utility model adopts a rotatable filter cartridge, which can timely clean the adhered particulate pollutants on the filter cartridge. At the same time, the filter cartridge, the negative pressure suction cylinder and the collection box all adopt a modular design, which is easy to disassemble and clean, thereby significantly improving the efficiency and performance of the sampling device and achieving the purpose of more effectively separating particulate pollutants in the atmospheric environment.

[0036] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present utility model.

Claims

1. An air sampling device for atmospheric detection, characterized in that: It includes a housing, a filter cartridge, a negative pressure suction cartridge and a collection box, wherein: The shell is provided with an inner cavity with two ends open, and baffles and arc-shaped enclosures are respectively provided on both sides of the inner cavity. The shell is provided with a first inlet and an outlet, and the first inlet and the outlet are respectively provided adjacent to the upper and lower sides of the arc-shaped enclosure; The filter cartridge is provided in a cylindrical shape with both ends open, and filter holes are evenly provided on the filter cartridge. The filter cartridge can be slidably plugged inside the arc-shaped enclosure. A mounting plate is provided on one side of the filter cartridge, one side of the mounting plate is against the outer wall of the shell, and a knob is provided on the other side of the mounting plate. The negative pressure suction cylinder is cylindrically arranged, and the negative pressure suction cylinder is slidably plugged into the inner side of the filter cylinder through the through hole on the baffle plate, and the negative pressure suction cylinder is provided with a second inlet corresponding to the first inlet, and a piston is slidably arranged inside the negative pressure suction cylinder, and a pull rod is arranged on the side of the piston away from the mounting plate, and the pull rod passes through the negative pressure suction cylinder; The collecting box is slidably disposed outside the outlet.

2. The atmospheric detection air sampling device according to claim 1, characterized in that: One side of the negative pressure suction cylinder is against the mounting plate, and the other side of the negative pressure suction cylinder is threadedly penetrated through the through hole.

3. The air sampling device for atmosphere detection according to claim 1, characterized in that: The first inlet is extended to the outside of the shell to form an inlet tube, and a cover is detachably provided on the outside of the inlet tube.

4. The air sampling device for atmosphere detection according to claim 1, characterized in that: The piston, the mounting plate, the baffle plate and the pull rod are all provided with sealing rings.

Images