Sampling device for environmental air monitoring

Abstract

The utility model provides a sampling device for ambient air monitoring, and belongs to the technical field of ambient air monitoring. Comprising a bottom box and an upper cover, and the upper cover is detachably installed above the bottom box; a mounting plate is arranged in the bottom box, a plurality of groups of sampling assemblies are mounted on the mounting plate, and the plurality of groups of sampling assemblies are distributed in an array; the sampling assembly comprises a drawing rod, an adsorption pipe, a piston rod and a first spring, the drawing rod is vertically arranged, the adsorption pipe is vertically arranged beside the drawing rod, the adsorption pipe is fixedly connected with the mounting plate, the drawing rod is slidably connected with the mounting plate, and the piston rod is vertically arranged in the adsorption pipe. And the adsorption pipe and the drawing rod are arranged. In the air extraction and sampling process, the adsorption tube does not need to be taken and installed, the upper cover is directly opened, the drawing rod after adsorption is limited by the fixing block, and the situation that air is pushed out of the adsorption tube due to shaking of the drawing rod in the moving process can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of ambient air monitoring technology, and in particular to a sampling device for ambient air monitoring. Background Technology

[0002] By monitoring, the types, concentrations, and distribution of air pollutants can be grasped in real time, providing the public with accurate air quality information, promptly detecting instances of pollutant exceedances, and providing early warning information to the government and relevant departments so that timely countermeasures can be taken to reduce the impact of pollution incidents on the environment and human health. Ambient air monitoring is an important means of assessing air quality and understanding the types and concentration distribution of pollutants. It plays a key role in formulating environmental protection policies, guiding pollution control, and evaluating the effectiveness of environmental governance. By monitoring and analyzing pollution sources, the types and sources of pollutants can be understood, thereby enabling targeted pollution control measures to be formulated. During the ambient air sampling process, sampling devices are required. Currently, most sampling methods involve removing the sampling bottle from the box, filling the bottle with air, and then placing it back into the box. The bottle needs to be frequently removed and replaced, which is prone to tipping and breakage, leading to sampling failure. Therefore, this application provides a sampling device for ambient air monitoring to meet the needs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sampling device for ambient air monitoring to solve the problem that most of the current sampling methods involve taking the sampling bottle out of the box, filling the bottle with air, and then putting it back into the box. The bottle needs to be frequently taken out and put back, which is easy to tip over and break, leading to sampling failure.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] An ambient air monitoring sampling device includes a base box and a top cover, the top cover being detachably mounted on top of the base box. The base box contains a mounting plate on which multiple sampling components are mounted in an array. Each sampling component includes a pull rod, an adsorption tube, a piston rod, and a first spring. The pull rod is vertically positioned, and the adsorption tube is vertically positioned beside the pull rod. The adsorption tube is fixedly connected to the mounting plate, and the pull rod is slidably connected to the mounting plate. The piston rod is vertically positioned inside the adsorption tube. Thanks to the adsorption tube and pull rod, during air extraction sampling, there is no need to remove or install the adsorption tube; simply opening the top cover is sufficient. The pull rod, after adsorption, is limited by a fixing block, preventing air from being pushed out of the adsorption tube due to the pull rod shaking during movement.

[0006] Optionally, a cap is provided above the adsorption tube, and the cap is rotatably connected to the top wall of the adsorption tube.

[0007] Optionally, the bottom of the adsorption tube has an opening for the piston rod to pass through.

[0008] Optionally, a connecting block is connected to the bottom sidewall of the piston rod, and a pull rod is fixedly connected to the end of the connecting block away from the piston rod.

[0009] Optionally, a first spring is fixedly connected to the bottom end of the pull rod, the first spring being vertically arranged, and the other end being fixedly connected to the bottom inner wall of the base box.

[0010] Optionally, a mounting block is fixedly connected to the top of the pull rod.

[0011] Optionally, the mounting block has a mounting groove in which a clip is slidably mounted.

[0012] Optionally, a second spring is fixed to one end of the clip head that penetrates into the mounting groove. The second spring is horizontally positioned, and the other end is fixedly connected to the inner wall of the mounting groove.

[0013] Optionally, the upper surface of the mounting plate is provided with multiple sets of fixing blocks, and the multiple sets of fixing blocks correspond to the sampling components.

[0014] Optionally, a limiting hole is provided in the mounting block, and the limiting hole is engaged with the clip head.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, thanks to the design of the adsorption tube and the pull rod, there is no need to remove or install the adsorption tube during the air extraction sampling process. Simply open the top cover. After adsorption, the pull rod is limited by the fixing block, which can prevent the air from being pushed out of the adsorption tube due to the pull rod shaking during movement. After the air sampling is completed, simply close the end cap and the top cover. It is convenient to use and easy to operate. When it is necessary to release the sampled air later, simply remove the clamp from the fixing block to reset the first spring, and the air can be pushed out. The operation steps are simple and can be widely promoted. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0018] Figure 1 A three-dimensional structural diagram of a sampling device for ambient air monitoring;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom box;

[0020] Figure 3This is a schematic diagram of the sampling component structure;

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure label:

[0023] 1. Top cover; 2. Bottom box; 3. Limiting hole; 4. Fixing block; 5. Mounting plate; 6. Sampling component; 7. Pull rod; 8. First spring; 9. Connecting block; 10. Piston rod; 11. Adsorption tube; 12. End cap; 13. Clip; 14. Mounting groove; 15. Second spring; 16. Mounting block.

[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0025] The sampling device for ambient air monitoring provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0026] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0027] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0028] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0029] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a sampling device for ambient air monitoring, including a base box 2 and an upper cover 1, wherein the upper cover 1 is detachably installed on top of the base box 2;

[0031] The bottom box 2 is equipped with a mounting plate 5, on which multiple sets of sampling components 6 are installed, and the multiple sets of sampling components 6 are distributed in an array.

[0032] like Figure 3 As shown, the sampling assembly 6 includes a pull rod 7, an adsorption tube 11, a piston rod 10, and a first spring 8. The pull rod 7 is vertically arranged, and the adsorption tube 11 is vertically arranged beside the pull rod 7. The adsorption tube 11 is fixedly connected to the mounting plate 5, and the pull rod 7 is slidably connected to the mounting plate 5. The piston rod 10 is vertically arranged inside the adsorption tube 11. A cap 12 is provided above the adsorption tube 11, and the cap 12 is rotatably connected to the top wall of the adsorption tube 11. The bottom of the adsorption tube 11 has an opening for the piston rod 10 to pass through. A connecting block 9 is connected to the bottom side wall of the piston rod 10, and the end of the connecting block 9 away from the piston rod 10 is fixedly connected to the pull rod 7. The bottom end face of the pull rod 7 is fixedly connected to the first spring 8, which is vertically arranged, and the other end is fixedly connected to the bottom inner wall of the bottom box 2.

[0033] like Figure 2 , Figure 4As shown, a mounting block 16 is fixedly connected to the top of the pull rod 7. The mounting block 16 has a mounting groove 14, within which a locking head 13 is slidably mounted. A second spring 15 is fixed to one end of the locking head 13 that penetrates the mounting groove 14; the second spring 15 is horizontally positioned. The other end is fixedly connected to the inner wall of the mounting groove 14. Multiple sets of fixing blocks 4 are provided on the upper surface of the mounting plate 5, corresponding to the sampling component 6. Limiting holes 3 are formed within the mounting block 16, and these limiting holes 3 are fitted and engaged with the locking head 13.

[0034] The working principle of the technical solution provided by this utility model is as follows: When in use, after carrying the sampling device to the air collection point, open the upper cover 1 and the cap 12 on the upper surface of the adsorption tube 11. At this time, the adsorption tube 11 is in an open state. Then press the pull rod 7 on the side of the adsorption tube 11. The pull rod 7 slides down along the mounting plate 5, and during the descent, it applies pressure to the first spring 8. The pull rod 7 drives the piston rod 10 to move down synchronously through the connecting block 9. When the piston rod 10 moves down, it draws air into the adsorption tube 11. The working principle of the adsorption tube 11 and the piston rod 10 is consistent with that of the syringe in the prior art. As the pull rod 7 descends, the first spring 8 is continuously compressed until the mounting block 16 is flush with the fixing block 4. Then, the second spring 15 retracts and the locking head 13 slides into the mounting groove 14. It continues to move down until the locking head 13 corresponds to the limiting hole 3. Then, the second spring 15 returns to its original position and pops out, driving the locking head 13 into the limiting hole 3 until the locking head 13 is locked with the fixing block 4. At this time, the pull rod 7 slides down to the lowest position and remains stationary. Air is drawn into the adsorption tube 11, and the end cap 12 is flipped over and tightened, completing the air extraction. If it is necessary to continue collecting air, press the other pull rods 7.

[0035] During the air extraction sampling process, there is no need to remove or install the adsorption tube 11. Simply open the top cover 1. After adsorption, the pull rod 7 is limited by the fixing block 4, which can prevent the pull rod 7 from shaking during movement and causing air to be pushed out of the adsorption tube 11. When performing air analysis later, connect the air guide hose to the adsorption tube 11, press the clamp 13 to exit the limiting hole 3, and the first spring 8 will reset and drive the piston rod 10 to lift along the adsorption tube 11, pushing out the air inside the adsorption tube 11 and guiding it into the detection equipment through the hose.

[0036] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sampling device for ambient air monitoring, characterized in that, Includes a base box and a top cover, wherein the top cover can be detachably installed on top of the base box; The bottom box is equipped with a mounting plate, on which multiple sets of sampling components are mounted in an array. The sampling assembly includes a pull rod, an adsorption tube, a piston rod, and a first spring. The pull rod is vertically arranged, the adsorption tube is vertically arranged beside the pull rod, the adsorption tube is fixedly connected to the mounting plate, the pull rod is slidably connected to the mounting plate, and the piston rod is vertically arranged inside the adsorption tube.

2. The sampling device for ambient air monitoring according to claim 1, characterized in that, The adsorption tube is provided with a cap at the top, and the cap is rotatably connected to the top wall of the adsorption tube.

3. The sampling device for ambient air monitoring according to claim 1, characterized in that, The bottom of the adsorption tube has an opening for the piston rod to pass through.

4. The sampling device for ambient air monitoring according to claim 1, characterized in that, A connecting block is connected to the bottom side wall of the piston rod, and a pull rod is fixedly connected to the end of the connecting block away from the piston rod.

5. The sampling device for ambient air monitoring according to claim 4, characterized in that, A first spring is fixedly connected to the bottom end of the pull rod. The first spring is vertically arranged, and the other end is fixedly connected to the inner wall of the bottom of the base box.

6. The sampling device for ambient air monitoring according to claim 1, characterized in that, A mounting block is fixedly connected to the top of the pull rod.

7. The sampling device for ambient air monitoring according to claim 6, characterized in that, The mounting block has a mounting groove, and a clip is slidably mounted in the mounting groove.

8. The sampling device for ambient air monitoring according to claim 7, characterized in that, A second spring is fixed to one end of the clip that penetrates into the mounting groove. The second spring is horizontally positioned, and the other end is fixedly connected to the inner wall of the mounting groove.

9. The sampling device for ambient air monitoring according to claim 8, characterized in that, The upper surface of the mounting plate is provided with multiple sets of fixing blocks, and the multiple sets of fixing blocks correspond to the sampling components.

10. The sampling device for ambient air monitoring according to claim 9, characterized in that, The mounting block has a limiting hole, which is engaged with the clip head.

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