Gas sampler for environment detection

Abstract

The utility model discloses a gas sampler for environment detection. The gas sampler comprises a drainage shell and a quick release mechanism, a sampling barrel is mounted on the upper surface of the drainage shell, an air outlet is formed in the lower surface of the sampling barrel, and the upper end of the sampling barrel is of an opening structure; the quick release mechanism comprises a barrel cover, a sliding column, sealing rubber pads and a top column, the barrel cover is in threaded connection with the upper end of the sampling barrel, the middle of the barrel cover is vertically and slidably connected with the elastic limiting sliding column, the sealing rubber pads are arranged on the lower surfaces of limiting discs at the upper end and the lower end of the sliding column, and the sealing rubber pad on the upper side and an air inlet in the middle of the barrel cover are installed in a matched mode; according to the gas sampler for environment detection, opening and closing of an air inlet and an air outlet of the sampling barrel are controlled in an inserted connection mode, connection of the sampling barrel and a sampling component is facilitated, the time needed for replacing a container of the gas sampler is shortened, multiple times of sampling of air is facilitated, the sampling efficiency is improved, and the sampling efficiency is improved. And the environment detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically a gas sampler for environmental monitoring. Background Technology

[0002] Environmental air testing refers to the process of detecting the components of air. In a broad sense, it encompasses the measurement and analysis of all components in the air, including but not limited to the concentrations of oxygen, carbon dioxide, and nitrogen. In a narrower sense, air testing primarily focuses on indoor air quality, especially detecting harmful substances released from decorative materials and furniture, such as formaldehyde, benzene, ammonia, total volatile organic compounds (TVOC), and radioactive radon. These substances may pose a health hazard. The air testing process first requires sampling the air using a sampler. Currently, traditional methods often use gas samplers to sample the air, guiding the air flow into the sampling container through a flow-through component to accelerate sampling. After sampling, because the flow-through component and sampling container are often connected by threads, the sampling container needs to be rotated to separate it from the flow-through component, and then the inlet and outlet of the sampling container are sealed with a plug. This results in a long time required to change the gas sampler container, making it inconvenient during multiple air sampling processes and affecting the efficiency of environmental testing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a gas sampler for environmental monitoring. The gas sampler controls the opening and closing of the gas inlet and outlet of the sampling cylinder by plugging in, which reduces the time required to change the gas sampler container, facilitates multiple air sampling, speeds up the efficiency of environmental monitoring, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas sampler for environmental monitoring, comprising a drainage shell and a quick-release mechanism;

[0005] Drainage shell: A sampling tube is installed on its upper surface, and an air outlet is provided on the lower surface of the sampling tube. The upper end of the sampling tube is an open structure.

[0006] Quick-release mechanism: It includes a cylinder cover, a sliding column, a sealing gasket, and a top column. The cylinder cover is threaded to the upper end of the sampling cylinder. The middle of the cylinder cover is vertically slidably connected to a sliding column with elastic limit. The lower surfaces of the limit plates at both ends of the sliding column are provided with sealing gaskets. The upper sealing gasket is installed in conjunction with the air inlet in the middle of the cylinder cover, and the lower sealing gasket is installed in conjunction with the air outlet on the lower surface of the sampling cylinder. The top column is located inside the drainage shell and is installed in conjunction with the sliding column. The opening and closing of the air inlet and outlet of the sampling cylinder is controlled by plugging in, which facilitates the connection between the sampling cylinder and the sampling component, reduces the time required to change containers in the gas sampler, facilitates multiple air samplings, and speeds up the efficiency of environmental monitoring.

[0007] Furthermore, the quick-release mechanism also includes a horizontal plate and guide posts. The horizontal plate is disposed on the outer arc surface of the slide column, and guide posts are respectively provided between the horizontal plate and the limiting plate at the upper end of the slide column. The guide posts are vertically slidably connected to the guide holes on the surface of the cylinder cover, providing guiding support for the movement of the slide column.

[0008] Furthermore, the quick-release mechanism also includes springs, which are respectively disposed between the horizontal plate and the cylinder cover, and are respectively movably sleeved on the outer arc surface of the guide post to elastically limit the position of the sliding post.

[0009] Furthermore, the quick-release mechanism also includes an insertion tube, a limiting post, and an L-shaped groove. The insertion tube is disposed on the upper surface of the drainage shell, and L-shaped grooves are provided at both ends of the insertion tube. The limiting post is disposed on the outer arc surface of the sampling tube. The limiting post and the L-shaped groove are installed together to quickly disassemble and assemble the sampling tube.

[0010] Furthermore, the surface of the drainage shell is provided with a control switch, the input end of which is electrically connected to an external power source to control the start and stop of the entire device.

[0011] Furthermore, the drainage shell is provided with a drainage tube in the middle, and a drainage fan is provided in the middle of the drainage tube. The top column is set at the upper end of the drainage tube through a cross support plate. Air holes are provided on the outer side of the drainage shell. The input end of the drainage fan is electrically connected to the output end of the control switch to provide power for the airflow.

[0012] Furthermore, the lower end of the drainage shell is provided with an anti-slip rubber pad, making the placement of the drainage shell more stable.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This gas sampler for environmental monitoring has the following advantages:

[0014] The sampling tube's inlet and outlet are controlled by a plug-in connection, which facilitates the connection between the sampling tube and the sampling components, reduces the time required to change containers in the gas sampler, allows for multiple air samples, and speeds up the efficiency of environmental monitoring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0017] In the diagram: 1. Drainage shell, 2. Sampling cylinder, 3. Quick release mechanism, 301. Cylinder cover, 302. Sliding column, 303. Sealing gasket, 304. Top column, 305. Horizontal plate, 306. Guide column, 307. Spring, 308. Insertion tube, 309. Limiting column, 310. L-shaped groove, 4. Drainage tube, 5. Drainage fan, 6. Air hole, 7. Control switch, 8. Anti-slip pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This embodiment provides a technical solution: a gas sampler for environmental monitoring, including a drainage shell 1 and a quick-release mechanism 3;

[0020] Drainage shell 1: A sampling tube 2 is installed on its upper surface to provide space for storing environmental test samples. The lower surface of the sampling tube 2 is provided with an air vent. The upper end of the sampling tube 2 is an open structure to facilitate the entry of air into the sampling tube 2. A control switch 7 is provided on the surface of the drainage shell 1. The input end of the control switch 7 is electrically connected to an external power source to control the start and stop of the entire device. The lower end of the drainage shell 1 is provided with an anti-slip rubber pad 8 to increase the friction of the lower surface of the drainage shell 1 and make the placement of the drainage shell 1 more stable.

[0021] Quick-release mechanism 3 includes a cylinder cover 301, a sliding column 302, a sealing gasket 303, and a top column 304. The cylinder cover 301 is threaded to the upper end of the sampling cylinder 2. The middle of the cylinder cover 301 is vertically slidably connected to the sliding column 302 with elastic limit. The lower surfaces of the limit plates at both ends of the sliding column 302 are provided with sealing gaskets 303. The upper sealing gasket 303 is installed in conjunction with the air inlet in the middle of the cylinder cover 301, and the lower sealing gasket 303 is installed in conjunction with the air outlet on the lower surface of the sampling cylinder 2. The top column 304 is located inside the drainage shell 1 and is installed in conjunction with the sliding column 302. The quick-release mechanism 3 also includes a horizontal plate 305 and a guide column 306. The horizontal plate 305 is located inside the drainage shell 1. Guide posts 306 are respectively provided between the outer arc surface of the sliding column 302, the horizontal plate 305, and the limiting plate at the upper end of the sliding column 302. The guide posts 306 are vertically slidably connected to the guide holes on the surface of the cylinder cover 301. The quick-release mechanism 3 also includes springs 307, which are respectively set between the horizontal plate 305 and the cylinder cover 301. The springs 307 are movably sleeved on the outer arc surface of the guide posts 306. When the sampling cylinder 2 is installed, under the pressure of the top column 304, the spring force of the spring 307 is overcome, causing the sliding column 302 to drive the sealing gasket 303 to move upward, thus removing the seal on the air inlet of the cylinder cover 301 and the air outlet of the sampling cylinder 2. At this time, external air can enter the sampling cylinder 2 for sampling. After sampling, the sampling cylinder 2 is disassembled. Under the elastic force of the spring 307, the sealing gasket 303 is reset, sealing the air inlet of the cylinder cover 301 and the air outlet of the sampling cylinder 2, thus completing the air sampling. The quick-release mechanism 3 also includes an insertion tube 308, a limiting post 309, and an L-shaped groove 310. The insertion tube 308 is set on the upper surface of the drainage shell 1. Both ends of the insertion tube 308 are provided with L-shaped grooves 310. The limiting posts 309 are respectively set on the outer arc surface of the sampling cylinder 2. The limiting posts 309 and the L-shaped grooves 310 are installed together. When the sampling cylinder 2 is inserted into the insertion tube 308, the limiting posts 309 enter the vertical groove of the L-shaped groove 310. When the limiting posts 309 move into the L-shaped groove 310, the sampling cylinder 2 is inserted into the insertion tube 308. At the intersection of the vertical and horizontal grooves, rotate the sampling cylinder 2 so that the limiting post 309 enters the horizontal groove of the L-shaped groove 310. The horizontal groove of the L-shaped groove 310 restricts the position of the sampling cylinder 2. Similarly, after sampling, simply reverse the direction and pull the sampling cylinder 2 upward to extract it from the insertion tube 308. The middle part of the drainage shell 1 is provided with a drainage tube 4, and the middle part of the drainage tube 4 is provided with a drainage fan 5. The top post 304 is set at the upper end of the drainage tube 4 through a cross support plate. The outer side of the drainage shell 1 is provided with air holes 6. The input end of the drainage fan 5 is electrically connected to the output end of the control switch 7 to provide power for the air flow and facilitate the air to enter the sampling cylinder 2.

[0022] The working principle of the gas sampler for environmental monitoring provided by this utility model is as follows: During environmental monitoring, the drainage shell 1 is placed at the location where sampling is required, and then the sampling cylinder 2 is inserted into the insertion tube 308. The limiting post 309 enters the vertical groove of the L-shaped groove 310. When the limiting post 309 moves to the intersection of the vertical groove and the horizontal groove of the L-shaped groove 310, the sampling cylinder 2 is rotated, causing the limiting post 309 to enter the horizontal groove of the L-shaped groove 310. The horizontal groove of the L-shaped groove 310 restricts the position of the sampling cylinder 2. At the same time, under the pressure of the top post 304, the elastic force of the spring 307 is overcome, causing the sliding post 302 to drive the sealing gasket 303 upward. The sealing of the air inlet of the cover 301 and the air outlet of the sampling tube 2 is released. At the same time, the drainage tube 4 contacts the lower surface of the sampling tube 2. The drainage fan 5 is started by the control switch 7 to guide the air flow, so that the external air enters the sampling tube 2 through the air inlet of the cover 301. The original air in the sampling tube 2 is discharged from the air outlet on the lower surface of the sampling tube 2. According to the air flow speed, after a certain period of time, the tube is reversed and pulled upward to pull the sampling tube 2 out of the insertion tube 308. Under the elastic force of the spring 307, the sealing gasket 303 is reset, sealing the air inlet of the cover 301 and the air outlet of the sampling tube 2, thus completing the air sampling.

[0023] It is worth noting that the airflow fan 5 disclosed in the above embodiments can be freely configured according to the actual application scenario. It is recommended to use the 6028 model airflow fan. The control switch 7 is equipped with a switch button corresponding to the airflow fan 5 for controlling its on / off operation.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas sampler for environmental detection, characterised in that: The drainage shell (1) and the quick release mechanism (3) are included. The drainage shell (1) is provided with a sampling cylinder (2) on the upper surface, and the lower surface of the sampling cylinder (2) is provided with an air outlet hole, and the upper end of the sampling cylinder (2) is an open structure. The quick release mechanism (3) includes a cylinder cover (301), a sliding column (302), a sealing rubber pad (303), and a top column (304), the cylinder cover (301) is threadedly connected to the upper end of the sampling cylinder (2), the middle part of the cylinder cover (301) is vertically and slidingly connected with the elastic limiting sliding column (302), the lower surface of the limiting disc at both ends of the sliding column (302) is provided with a sealing rubber pad (303), the upper sealing rubber pad (303) is matched and installed with the air inlet hole in the middle part of the cylinder cover (301), the lower sealing rubber pad (303) is matched and installed with the air outlet hole on the lower surface of the sampling cylinder (2), the top column (304) is arranged in the inside of the drainage shell (1), and the top column (304) is matched and installed with the sliding column (302).

2. The gas sampler for environmental detection according to claim 1, characterized in that: The quick release mechanism (3) further includes a horizontal plate (305) and a guide column (306), the horizontal plate (305) is arranged on the outer arc surface of the sliding column (302), the guide column (306) is arranged between the horizontal plate (305) and the limiting disc at the upper end of the sliding column (302), and the guide column (306) is vertically and slidingly connected with the guide hole on the surface of the cylinder cover (301).

3. A gas sampler for environmental detection according to claim 2, characterised in that: The quick release mechanism (3) further includes a spring (307), the spring (307) is arranged between the horizontal plate (305) and the cylinder cover (301), and the spring (307) is movably sleeved on the outer arc surface of the guide column (306).

4. The gas sampler for environmental detection according to claim 1, characterized in that: The quick release mechanism (3) further includes a cannula (308), a limiting column (309), and an L-shaped groove (310), the cannula (308) is arranged on the upper surface of the drainage shell (1), the left and right ends of the cannula (308) are provided with the L-shaped groove (310), the limiting column (309) is arranged on the outer arc surface of the sampling cylinder (2), and the limiting column (309) is matched and installed with the L-shaped groove (310).

5. The gas sampler for environmental detection according to claim 1, characterized in that: The surface of the drainage shell (1) is provided with a control switch (7), and the input end of the control switch (7) is electrically connected to an external power supply.

6. A gas sampler for environmental detection according to claim 5, characterised in that: The middle part of the drainage shell (1) is provided with a drainage tube (4), the middle part of the drainage tube (4) is provided with a drainage fan (5), the top column (304) is arranged at the inside upper end of the drainage tube (4) through a cross support plate, the outer side surface of the drainage shell (1) is respectively provided with an air hole (6), and the input end of the drainage fan (5) is electrically connected to the output end of the control switch (7).

7. The gas sampler for environmental detection according to claim 1, wherein: The lower end of the drainage shell (1) is provided with an anti-skid rubber pad (8).

Images