Active atmosphere directional sampling device

Abstract

The utility model relates to an active atmosphere directional sampling device, which aims to solve the technical problem that timing and repeated sampling operations are inconvenient to carry out on atmosphere at present, and comprises a sampling table, a sampling mechanism, a mounting mechanism and a protection mechanism. The flow direction of air can be controlled, an electric-hydraulic push rod can be controlled to work, a piston can be driven to move left and right in a sampling groove, when the piston moves rightwards, external air can be sucked into the sampling groove through an air suction groove, and when the piston moves leftwards, the air sucked in the sampling groove can be pressed into a guide groove through an air outlet groove; the corresponding electromagnetic valves can be automatically controlled to be opened at specified time through the industrial control computer, and air in the sampling grooves can be pressed into the corresponding sampling pipes through the connecting pipes to be collected, so that the problem that an existing atmosphere directional sampling device is inconvenient to carry out timing and repeated sampling operation on atmosphere is solved.

Description

Technical Field

[0001] The utility model relates to the field of air sampling, in particular to an active air directional sampling device. Background Art

[0002] In the process of studying the cross-border transmission, long-distance transportation and traceability analysis of air pollutants, the source of pollutants has always been the focus of researchers. In existing methods, most use backward air trajectory models to calculate and analyze the transportation and diffusion trajectories of air pollutants, so as to analyze the source of air masses during the sampling period.

[0003] According to the disclosed patent CN113063636B, an active air directional sampling device includes an anemometer and wind vane, a data collector, a bracket, a data communication cable, a sampling controller, a collection chamber and a sampling box. The anemometer and wind vane is arranged on the top of the data collector, the bracket is arranged at the bottom of the data collector, the data collector is connected to the sampling controller through a data communication cable, and the sampling controller is connected to the sampling box through the collection chamber.

[0004] In the process of implementing the present utility model, the inventor found that at least the following problems in the prior art have not been solved. In the above case, by integrating PM2.5 sensors, CO sensors, CO2 sensors, VOCs sensors and temperature and humidity sensors in the data collector, only a simple detection of the atmosphere is carried out. When further detection of the atmosphere components is required, the atmosphere needs to be sampled and then sent to the corresponding testing institution for detection by precision instruments. The existing air sampling is mainly manually carried out by staff at different time periods, with high labor intensity and low work efficiency. Therefore, new technical solutions need to be designed to solve this problem. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide an active air directional sampling device to solve the technical problem that it is currently inconvenient to perform timed and multiple sampling operations on the atmosphere.

[0006] To achieve the object of the present utility model, the technical solution adopted by the present utility model is as follows: Design an active atmospheric directional sampling device, including a sampling table, and further including a sampling mechanism, an installation mechanism and a protection mechanism; the sampling mechanism is used for regularly collecting the atmosphere, the sampling mechanism includes a sampling groove and a sampling pipe, the sampling groove is horizontally opened inside the lower end of the sampling table, a suction groove is horizontally penetrated through the middle of one inner wall of the sampling groove, a electro-hydraulic push rod is fixedly connected to the middle of the other inner wall of the sampling groove, a piston is slidably connected inside the sampling groove, and the telescopic end of the electro-hydraulic push rod is fixedly connected to the middle of one side of the piston. A guide groove is horizontally opened above the sampling groove, an air outlet groove is vertically opened at the bottom side of one end of the guide groove, and the sampling groove is communicated with the guide groove through the air outlet groove. The sampling pipes are uniformly distributed above the sampling table. A connecting groove is vertically opened on the top inner wall of the guide groove, the connecting grooves correspond to the sampling pipes one by one, and the guide groove is communicated with the sampling pipes through the connecting grooves. A solenoid valve is arranged below the inside of the connecting groove. An industrial control computer is arranged above the front side of the sampling table; the installation mechanism is used for the installation and collection of the sampling pipes, the installation mechanism includes a connecting pipe, a plug is threadedly connected to the opening end of the sampling pipe, the connecting pipe vertically penetrates through the middle of the plug and is fixedly connected to the plug, and the bottom end of the connecting pipe is movably connected to the connecting groove. One-way valves are arranged inside the connecting pipe, the suction groove and the air outlet groove; the protection mechanism is used for the fixation and protection of the sampling pipes, the protection mechanism includes a protective cover, a clamping groove is opened on the outside of the upper surface of the sampling table, the bottom end of the protective cover is movably connected to the clamping groove, and positioning blocks are uniformly installed on the inner wall of the top end of the protective cover.

[0007] Preferably, limiting grooves are uniformly opened on the upper surface of the sampling table, the limiting grooves correspond to the connecting grooves, and the limiting grooves are communicated with the connecting grooves. The plugs and the sampling pipes are movably connected to the limiting grooves.

[0008] Preferably, a rubber ring is adhesively bonded to the top inner wall of the connecting groove, and the rubber ring fits with the outer side of the connecting pipe.

[0009] Preferably, iron sheets are fixedly connected to the front and rear ends of the bottom side of the protective cover, magnet blocks are fixedly connected to the front and rear ends of the bottom side of the clamping groove, and the iron sheets are movably connected to the magnet blocks.

[0010] Preferably, the positioning blocks correspond to the sampling pipes, positioning grooves are opened on the bottom sides of the positioning blocks, and the top ends of the sampling pipes are movably connected to the positioning grooves.

[0011] Preferably, the protective cover and the sampling pipes are dimensionally matched, and the sampling pipes and the sampling grooves are dimensionally matched.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The utility model is provided with one-way valves inside the air extraction groove and the air outlet groove, which can control the flow direction of air, control the operation of the electro-hydraulic push rod, and drive the piston to move left and right in the sampling groove. When the piston moves to the right, the outside air can be drawn into the sampling groove through the air extraction groove. When the piston moves to the left, the air extracted from the sampling groove can be pressed into the guide groove through the air outlet groove. The industrial control computer can automatically control the corresponding solenoid valve to open at a specified time, and the air in the sampling groove can be pressed into the corresponding sampling tube through the connecting pipe for collection, thus solving the problem that the existing atmospheric directional sampling device is not convenient for timed and multiple sampling operations of the atmosphere.

[0014] 2. The utility model is movably connected with the sampling tube and the plug through the limiting groove, which is convenient to insert the bottom end of the connecting pipe in the middle of the plug into the connecting groove to realize the connection between the connecting groove and the sampling tube. The iron sheet at the bottom end of the protective cover can be attracted and fixed by the magnet block at the bottom end of the clamping groove, which is convenient to fix the protective cover on the sampling table. The positioning block is fixedly installed on the inner wall of the top end of the protective cover, and the positioning groove formed on the bottom side of the positioning block can squeeze and fix the vertical sampling tube on the surface of the sampling table to further fix and protect the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the utility model;

[0016] Figure 2 is the internal schematic diagram of the utility model;

[0017] Figure 3 is the schematic diagram of part A of the utility model;

[0018] In the figure: 1. Sampling table; 11. Sampling groove; 12. Air extraction groove; 13. Electro-hydraulic push rod; 14. Piston; 15. Guide groove; 16. Air outlet groove; 17. Connecting groove; 18. Sampling tube; 2. Plug; 21. Connecting pipe; 22. Solenoid valve; 23. One-way valve; 24. Rubber ring; 25. Protective cover; 26. Positioning block; 27. Positioning groove; 28. Clamping groove; 29. Limiting groove; 3. Iron sheet; 31. Magnet block; 32. Industrial control computer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the utility model with reference to the drawings and embodiments:

[0020] Embodiment 1: An active atmospheric directional sampling device, see Figures 1 to 3, including a sampling platform 1, further comprising a sampling mechanism, a mounting mechanism and a protection mechanism; the sampling mechanism is used for periodically collecting the atmosphere, the sampling mechanism includes a sampling tank 11 and a sampling pipe 18, the sampling tank 11 is horizontally opened inside the lower end of the sampling platform 1, a suction groove 12 is horizontally penetrated through the middle of one inner wall of the sampling tank 11, a electro-hydraulic push rod 13 is fixedly connected to the middle of the other inner wall of the sampling tank 11, a piston 14 is slidably connected inside the sampling tank 11, the telescopic end of the electro-hydraulic push rod 13 is fixedly connected to the middle of one side of the piston 14, a guide groove 15 is horizontally opened above the sampling tank 11, an air outlet groove 16 is vertically opened at the bottom side of one end of the guide groove 15, the sampling tank 11 is communicated with the guide groove 15 through the air outlet groove 16, the sampling pipes 18 are uniformly distributed above the sampling platform 1, a connecting groove 17 is vertically opened on the top inner wall of the guide groove 15, the connecting groove 17 corresponds to the sampling pipe 18 one by one, and the guide groove 15 is communicated with the sampling pipe 18 through the connecting groove 17, a solenoid valve 22 is arranged below the inside of the connecting groove 17, an industrial control computer 32 is arranged above the front side of the sampling platform 1, and check valves 23 are arranged inside the connecting pipe 21, the suction groove 12 and the air outlet groove 16.

[0021] By arranging check valves 23 inside the suction groove 12 and the air outlet groove 16, the flow direction of air can be controlled. Controlling the electro-hydraulic push rod 13 to work can drive the piston 14 to move left and right inside the sampling tank 11. When the piston 14 moves to the right, the outside air can be drawn into the sampling tank 11 through the suction groove 12. When the piston 14 moves to the left, the air drawn in the sampling tank 11 can be pressed into the guide groove 15 through the air outlet groove 16. The industrial control computer 32 can automatically control the corresponding solenoid valve 22 to open at a specified time, and the air in the sampling tank 11 can be pressed into the corresponding sampling pipe 18 through the connecting pipe 21 for collection, thus solving the problem that the existing atmospheric directional sampling device is not convenient for timing and multiple sampling operations of the atmosphere.

[0022] Specifically, see Figure Figures 1 to 3 , the mounting mechanism is used for the installation and collection of the sampling pipe 18, the mounting mechanism includes a connecting pipe 21, a plug 2 is threadedly connected to the opening end of the sampling pipe 18, the connecting pipe 21 vertically penetrates through the middle of the plug 2 and is fixedly connected to the plug 2, the bottom end of the connecting pipe 21 is movably connected to the connecting groove 17, check valves 23 are arranged inside the connecting pipe 21, the suction groove 12 and the air outlet groove 16, limit grooves 29 are uniformly opened on the upper surface of the sampling platform 1, the limit grooves 29 correspond to the connecting grooves 17, and the limit grooves 29 are communicated with the connecting grooves 17, and the plug 2 and the sampling pipe 18 are movably connected to the limit grooves 29.

[0023] It is movably connected to the sampling tube 18 and the plug 2 through the limit groove 29, which facilitates inserting the bottom end of the connecting tube 21 in the middle of the plug 2 into the connecting groove 17 to realize the connection between the connecting groove 17 and the sampling tube 18. At the same time, the limit groove 29 can limit the sampling tube 18. When it is necessary to collect the sampling tube 18, just pull it out upwards, which is convenient and fast.

[0024] Furthermore, referring to Figure Figures 1 to 3 , a protection mechanism is used for fixing and protecting the sampling tube 18. The protection mechanism includes a protective cover 25. A clamping groove 28 is formed on the outer side of the upper surface of the sampling table 1. The bottom end of the protective cover 25 is movably connected to the clamping groove 28. Iron sheets 3 are fixedly connected to both the front and rear ends of the bottom side of the protective cover 25. Magnet blocks 31 are fixedly connected to both the front and rear ends of the bottom side of the clamping groove 28, and the iron sheets 3 are movably connected to the magnet blocks 31. Positioning blocks 26 are evenly installed on the inner wall of the top end of the protective cover 25. The positioning blocks 26 correspond to the sampling tube 18. A positioning groove 27 is formed on the bottom side of the positioning block 26, and the top end of the sampling tube 18 is movably connected to the positioning groove 27.

[0025] The magnet block 31 at the bottom end of the clamping groove 28 can attract and fix the iron sheet 3 at the bottom end of the protective cover 25, which facilitates fixing the protective cover 25 on the sampling table 1. Through the positioning blocks 26 fixedly installed on the inner wall of the top end of the protective cover 25 and the positioning grooves 27 formed on the bottom sides of the positioning blocks 26, the vertical sampling tube 18 on the surface of the sampling table 1 can be squeezed and fixed, further fixing and protecting the sampling tube 18.

[0026] It should be noted that, referring to Figure Figures 1 to 3 , a rubber ring 24 is adhesively bonded to the inner wall of the top end of the connecting groove 17. The rubber ring 24 fits with the outer side of the connecting tube 21. Through the rubber ring 24 on the inner wall of the connecting groove 17, the connection tightness between the connecting tube 21 and the inner wall of the connecting groove 17 can be improved.

[0027] It is worth introducing that, referring to Figure Figures 1 to 3 , the size of the protective cover 25 matches that of the sampling tube 18, and the size of the sampling tube 18 matches that of the sampling groove 11, avoiding the length of the sampling tube 18 being too long or too short and affecting the use effect of the protective cover 25.

[0028] In addition, the components designed in the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method either.

[0029] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and changes. As long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. An active atmospheric directional sampling device, comprising a sampling platform (1), characterized in that: It also includes sampling mechanism, installation mechanism and protection mechanism; The sampling mechanism is used to collect air at a fixed time. The sampling mechanism comprises a sampling slot (11) and a sampling tube (18). The sampling slot (11) is horizontally opened inside the lower end of the sampling platform (1). A suction slot (12) is horizontally penetrated through the middle of the inner wall of one side of the sampling slot (11). An electro-hydraulic push rod (13) is fixedly connected to the middle of the inner wall of the other side of the sampling slot (11). A piston (14) is slidably connected inside the sampling slot (11). The telescopic end of the electro-hydraulic push rod (13) is fixedly connected to the middle of one side of the piston (14). A guide slot (15) is horizontally opened above the sampling slot (11). ), an air outlet groove (16) is vertically opened on the bottom side of one end of the guide groove (15), the sampling groove (11) is connected to the guide groove (15) via the air outlet groove (16), the sampling tube (18) is evenly distributed above the sampling platform (1), a connecting groove (17) is vertically opened on the inner wall of the top end of the guide groove (15), the connecting groove (17) corresponds to the sampling tube (18) one by one, and the guide groove (15) is connected to the sampling tube (18) via the connecting groove (17), a solenoid valve (22) is arranged below the inside of the connecting groove (17), and an industrial control computer (32) is arranged above the front side of the sampling platform (1); The mounting mechanism is used for mounting and collecting the sampling tube (18), and the mounting mechanism comprises a connecting tube (21), the open end of the sampling tube (18) is threadedly connected to a plug (2), the connecting tube (21) vertically penetrates the middle of the plug (2) and is fixedly connected to the plug (2), the bottom end of the connecting tube (21) is movably connected to the connecting groove (17), and the connecting tube (21), the air extraction groove (12) and the air outlet groove (16) are all provided with a one-way valve (23); The protective mechanism is used to fix and protect the sampling tube (18), and the protective mechanism includes a protective cover (25). A slot (28) is provided on the outer side of the upper surface of the sampling platform (1). The bottom end of the protective cover (25) is movably connected to the slot (28). Positioning blocks (26) are evenly installed on the inner wall of the top end of the protective cover (25).

2. An active atmospheric directional sampling device as claimed in claim 1, characterized in that: The upper surface of the sampling platform (1) is evenly provided with limiting grooves (29), the limiting grooves (29) correspond to the connecting grooves (17), and the limiting grooves (29) are in communication with the connecting grooves (17), and the plug (2) and the sampling tube (18) are movably connected to the limiting grooves (29).

3. The active atmospheric directional sampling device according to claim 1, characterized in that: A rubber ring (24) is bonded to the inner wall of the top end of the connection groove (17), and the rubber ring (24) fits the outer side of the connection pipe (21).

4. The active atmospheric directional sampling device according to claim 1, characterized in that: The front and rear ends of the bottom side of the protective cover (25) are both fixedly connected to an iron sheet (3), the front and rear ends of the bottom side of the clamping slot (28) are both fixedly connected to a magnet block (31), and the iron sheet (3) and the magnet block (31) are movably connected.

5. The active atmospheric directional sampling device according to claim 1, characterized in that: The positioning block (26) corresponds to the sampling tube (18), a positioning groove (27) is provided on the bottom side of the positioning block (26), and the top end of the sampling tube (18) is movably connected to the positioning groove (27).

6. The active atmospheric directional sampling device according to claim 1, characterized in that: The protective cover (25) matches the size of the sampling tube (18), and the sampling tube (18) matches the size of the sampling tank (11).

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