Air environment monitoring sampling device

Abstract

The utility model discloses an air environment monitoring sampling device which comprises a protective shell, a sampling bin is connected to the inner wall of the protective shell in a sliding mode, an air pipe is fixedly installed on the top of the protective shell, the bottom end of the air pipe penetrates through the protective shell and extends into the sampling bin, and a control valve is fixedly installed on the air pipe. According to the utility model, the sampling bin is arranged to sample and store an air sample so as to facilitate subsequent detection, and meanwhile, the movable sampling bin is arranged and is supported by the spring, and the elastic sealing plate can also move in the sampling bin; when an air sample needs to be discharged subsequently, the sampling bin and the elastic sealing plate can oscillate through the elasticity of the spring, so that deposited dust particles are attached to airflow, and the situation that the dust particles are deposited and discharged out of the airflow and do not fit with the air state in a monitoring area, and the monitoring efficiency is affected is avoided; and airflow discharge can be accelerated through the movable elastic sealing plate, and the situation that dust particles are discharged slowly to affect precision is avoided.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and more specifically, to an air environment monitoring and sampling device. Background Technology

[0002] Environmental monitoring is a discipline that uses modern technologies such as chemistry, physics, biology, medicine, telemetry, remote sensing, and computers to monitor, measure, and control various indicator data reflecting environmental quality and its changing trends, thereby making a comprehensive evaluation of environmental quality. The environmental monitoring process generally includes accepting the task, conducting on-site investigations and data collection, designing monitoring plans, optimizing monitoring site locations, sample collection, sample transportation and preservation, sample pretreatment, analysis and testing, data processing, and comprehensive evaluation.

[0003] Haze, also known as smog or haze, refers to a turbid phenomenon formed by a large amount of suspended smoke, dust, and other particulate matter of unknown cause. The core substance of haze is dust particles suspended in the air, which are called aerosol particles in meteorology.

[0004] Environmental monitoring requires collecting air samples and storing them in a container. Due to the presence of smog, the air contains a large number of dust particles. These dust particles may settle at the bottom of the container after a long period of time. When the air is discharged through the gas supply pipe for testing, a large number of dust particles have settled at the bottom of the container and cannot be used for testing. This may result in inaccurate test results.

[0005] Patent application CN201920010342.X discloses an air sampling device for environmental monitoring, including a housing. An air supply pipe is installed at the upper end of the housing, and a control valve is installed on the air supply pipe. A mounting base is fixedly installed inside the housing, and an elastic gasket is installed inside the mounting base. An abutment mechanism matching the elastic gasket is provided at the lower end of the housing. In this invention, under the elastic force of a spring, the abutment block drives a rubber contact to strike the elastic gasket, causing the elastic gasket to vibrate. This vibrates the dust particles deposited on the elastic gasket, and after repeated vibrations, the dust particles deposited on the elastic gasket can be restored to their previous state of being integrated into the sampled air. Therefore, opening the control valve to release the sampled air for testing greatly ensures the accuracy of the test results.

[0006] This structure uses a spring-connected sliding rod to strike an elastic pad, causing deposited dust particles to dissolve into the gas. However, the elastic pad has a limited range of motion during use, which restricts the movement of dust particles. This can affect the judgment of regional air samples after they are discharged. Furthermore, the gas discharge is slow due to air pressure issues, making it difficult for dust particles to be expelled, thus affecting the efficiency and accuracy of the detection. Utility Model Content

[0007] In view of the problems existing in the prior art, the purpose of this utility model is to provide an air environment monitoring and sampling device to solve the problems in the background technology.

[0008] To achieve the above objectives, the present invention adopts the following technical solution;

[0009] An air environment monitoring sampling device includes a protective housing, a sampling chamber slidably connected to the inner wall of the protective housing, an air pipe fixedly installed on the top of the protective housing, the bottom end of the air pipe penetrating the protective housing and extending into the interior of the sampling chamber, a control valve fixedly installed on the air pipe, a movable plate slidably connected to the inner wall of the protective housing, the movable plate being located at the bottom of the sampling chamber, two springs fixedly connected to the inner bottom wall of the protective housing, the top ends of the springs contacting the bottom of the movable plate, an elastic sealing plate slidably installed on the inner wall of the sampling chamber, a synchronous shaft fixedly connected to the bottom of the elastic sealing plate, the bottom end of the synchronous shaft penetrating the sampling chamber and extending into the interior of the protective housing, through grooves formed on both the front and back of the protective housing, two extension plates fixedly connected to the synchronous shaft, the ends of the extension plates away from the synchronous shaft penetrating the through grooves and extending to the outside of the protective housing.

[0010] As a further description of the above technical solution: a buffer ring is fixedly connected to the top of the sampling chamber, the top of the buffer ring is in contact with the inner wall of the protective shell, and the buffer ring is made of rubber material.

[0011] As a further description of the above technical solution: a telescopic sleeve is fixedly connected inside the spring, the bottom end of the telescopic sleeve is fixedly installed on the inner wall of the protective shell, and the top end of the telescopic sleeve is fixedly connected to the bottom of the movable plate.

[0012] As a further description of the above technical solution: the synchronous shaft does not contact the movable plate.

[0013] As a further description of the above technical solution: the top and bottom of the extension plate are both provided with uniformly distributed anti-slip textures.

[0014] As a further description of the above technical solution: the connection between the trachea and the sampling chamber is made with a sliding seal.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] In this invention, an air sample chamber is set up to collect and store air samples for subsequent testing. The movable sample chamber, supported by a spring, allows the elastic sealing plate to move within it. When the air sample needs to be discharged, the spring's elasticity causes the sample chamber and the elastic sealing plate to vibrate, causing deposited dust particles to adhere to the airflow. This prevents dust particles from being deposited and discharged, ensuring the airflow is compatible with the air conditions in the monitoring area and thus improving monitoring efficiency. Furthermore, the movable elastic sealing plate accelerates airflow discharge, preventing slow dust particle discharge from affecting accuracy. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a frontal cross-sectional view of the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable plate of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Protective outer shell; 2. Sampling chamber; 3. Air pipe; 4. Control valve; 5. Movable plate; 6. Spring; 7. Elastic sealing plate; 8. Synchronous shaft; 9. Through groove; 10. Extension plate; 11. Buffer ring; 12. Telescopic sleeve. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-4In this utility model, an air environment monitoring sampling device includes a protective shell 1, a sampling chamber 2 slidably connected to the inner wall of the protective shell 1, an air pipe 3 fixedly installed on the top of the protective shell 1, the bottom end of the air pipe 3 penetrating the protective shell 1 and extending into the interior of the sampling chamber 2, a control valve 4 fixedly installed on the air pipe 3, a movable plate 5 slidably connected to the inner wall of the protective shell 1, the movable plate 5 being located at the bottom of the sampling chamber 2, two springs 6 fixedly connected to the inner bottom wall of the protective shell 1, the top ends of the springs 6 contacting the bottom of the movable plate 5, an elastic sealing plate 7 slidably installed on the inner wall of the sampling chamber 2, a synchronous shaft 8 fixedly connected to the bottom of the elastic sealing plate 7, the bottom end of the synchronous shaft 8 penetrating the sampling chamber 2 and extending into the interior of the protective shell 1, through grooves 9 being provided on both the front and back of the protective shell 1, two extension plates 10 fixedly connected to the synchronous shaft 8, the end of the extension plate 10 away from the synchronous shaft 8 penetrating the through groove 9 and extending to the outside of the protective shell 1.

[0025] The synchronous shaft 8 and the movable plate 5 are not in contact, and the connection between the air pipe 3 and the sampling chamber 2 is made with a sliding seal.

[0026] The sampling chamber 2 inside the protective outer shell 1 is sealed. During use, an air sample is drawn into the gas collection chamber, and the control valve 4 is closed to seal the air tube 3, thus completing the sampling. When testing the sampled air is required, the user holds the extension plates 10 on both sides and pulls them downwards. The extension plates 10 slide inside the through groove 9, thereby driving the synchronous shaft 8, which is fixedly connected to them, to move downwards. The elastic sealing plate 7 at the top of the synchronous shaft 8 moves downwards, causing the sampling chamber 2 to move downwards. At this time, the movable plate 5 at the bottom of the sampling chamber 2 begins to apply pressure to the spring 6, causing the spring 6 to contract and generate an opposing force. Some dust settles on the top of the elastic sealing plate 7. When the user releases the extension plate 10, the spring 6 loses pressure and begins to rebound. At this time, the sampling chamber 2 is also lifted up, causing it to vibrate internally. Due to inertia, the synchronous shaft 8 will reciprocate, causing the elastic sealing plate 7 to move inside the sampling chamber 2. The vibration causes dust particles to adhere to the gas, thus forming a sample. Then, the user opens the control valve 4 to allow the air pipe 3 to exhaust air and pushes the extension plate 10 to the top, causing the synchronous shaft 8 to push the elastic sealing plate 7 upward. This allows the air sample to be quickly discharged through the air pipe 3, thus achieving sampling and testing.

[0027] In this invention, an air sampler chamber 2 is used to collect and store air samples for subsequent testing. The movable sampler chamber 2 is supported by a spring 6, and the elastic sealing plate 7 can also move inside the sampler chamber 2. When the air sample needs to be discharged, the elasticity of the spring 6 can cause the sampler chamber 2 and the elastic sealing plate 7 to vibrate, thereby causing the deposited dust particles to adhere to the airflow. This prevents the dust particles from being discharged and the airflow from not matching the air conditions in the monitoring area, which would affect the monitoring efficiency. Furthermore, the movable elastic sealing plate 7 can accelerate the discharge of airflow and prevent the dust particles from being discharged slowly, which would affect the accuracy.

[0028] Please see Figure 2 The top of the sampling chamber 2 is fixedly connected to a buffer ring 11, the top of which contacts the inner wall of the protective shell 1. The buffer ring 11 is made of rubber material.

[0029] In this invention, when the sampling chamber 2 rebounds, the buffer ring 11 made of rubber material at the top will contact the inner wall of the protective shell 1 to buffer the impact and avoid damage caused by direct impact, thus affecting the service life.

[0030] Please see Figure 2 and 3 The spring 6 is internally fixedly connected to a telescopic sleeve 12. The bottom end of the telescopic sleeve 12 is fixedly installed on the inner wall of the protective shell 1, and the top end of the telescopic sleeve 12 is fixedly connected to the bottom of the movable plate 5.

[0031] In this invention, the telescopic sleeve 12 can restrict the spring 6, so that the spring 6 always maintains stable extension and contraction in the vertical direction, avoiding twisting and affecting the rebound force.

[0032] Please see Figure 1 and 4 The top and bottom of the extension plate 10 are both provided with evenly distributed anti-slip textures.

[0033] In this invention, when the user needs to move the extension plate 10, the anti-slip texture can increase the friction of the user's hands, thereby preventing the user from slipping.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An air environment monitoring sampling device comprising a protective housing (1), characterised in that: The inner wall of the protective shell (1) is slidably connected with a sampling bin (2), the top of the protective shell (1) is fixedly installed with an air pipe (3), the bottom end of the air pipe (3) penetrates the protective shell (1) and extends to the inside of the sampling bin (2), the air pipe (3) is fixedly installed with a control valve (4), the inner wall of the protective shell (1) is slidably connected with a movable plate (5), the movable plate (5) is located at the bottom of the sampling bin (2), the inner bottom wall of the protective shell (1) is fixedly connected with two springs (6), the top end of the spring (6) is in contact with the bottom of the movable plate (5), the inner wall of the sampling bin (2) is slidably installed with an elastic sealing plate (7), the bottom of the elastic sealing plate (7) is fixedly connected with a synchronous shaft (8), the bottom end of the synchronous shaft (8) penetrates the sampling bin (2) and extends to the inside of the protective shell (1), the front and back of the protective shell (1) are both provided with a through groove (9), the synchronous shaft (8) is fixedly connected with two extension plates (10), one end of the extension plate (10) away from the synchronous shaft (8) penetrates the through groove (9) and extends to the outside of the protective shell (1).

2. An air environment monitoring sampling device according to claim 1, wherein: The top of the sampling bin (2) is fixedly connected with a buffer ring (11), the top of the buffer ring (11) is in contact with the inner wall of the protective shell (1), the buffer ring (11) is made of rubber material.

3. An air environment monitoring sampling device according to claim 1, wherein: The inside of the spring (6) is fixedly connected with a telescopic sleeve (12), the bottom end of the telescopic sleeve (12) is fixedly installed on the inner wall of the protective shell (1), the top end of the telescopic sleeve (12) is fixedly connected with the bottom of the movable plate (5).

4. An air environmental monitoring sampling device according to claim 1, wherein: The synchronous shaft (8) is not in contact with the movable plate (5).

5. An air environmental monitoring sampling device according to claim 1, wherein: The top and bottom of the extension plate (10) are both provided with evenly distributed anti-skid lines.

6. An air environmental monitoring sampling device according to claim 1, wherein: The air pipe (3) and the sampling bin (2) are connected with sliding sealing treatment.

Images