CN214472005U - Environment monitoring device for geological mining of mine - Google Patents

Environment monitoring device for geological mining of mine Download PDF

Info

Publication number
CN214472005U
CN214472005U CN202120189988.6U CN202120189988U CN214472005U CN 214472005 U CN214472005 U CN 214472005U CN 202120189988 U CN202120189988 U CN 202120189988U CN 214472005 U CN214472005 U CN 214472005U
Authority
CN
China
Prior art keywords
fixed
pipe
collecting pipe
water
gas collecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120189988.6U
Other languages
Chinese (zh)
Inventor
刘宏宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202120189988.6U priority Critical patent/CN214472005U/en
Application granted granted Critical
Publication of CN214472005U publication Critical patent/CN214472005U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model belongs to the technical field of mine geology monitoring, especially, be an environmental monitoring device for mining geology, including unmanned aerial vehicle subassembly, gas collection subassembly and water sample collection subassembly, the unmanned aerial vehicle subassembly includes organism, protection network, camera probe, fixed plate and supporting leg, the upper surface of organism is fixed with the protection network, the lower surface of organism rotates and is connected with camera probe, the lower surface both sides of organism are fixed with two sets of fixed plates, the bottom of fixed plate is fixed with two sets of supporting leg; the utility model is based on the unmanned aerial vehicle technology, adopts the unmanned aerial vehicle to sample in the mine and the mine, avoids casualties, and is convenient for users to use; the utility model discloses come and go conveniently in each collection place, it is fast, efficient to gather the sample, offers convenience for the user.

Description

Environment monitoring device for geological mining of mine
Technical Field
The utility model belongs to the technical field of mine geology monitoring, concretely relates to environment monitoring device is used in mining geology.
Background
Mineral resources are products of earth crust in the long-term formation, development and evolution processes, and are formed by gathering natural minerals under certain geological conditions, different types of mineral products can be formed under different geological conditions, and an environment monitoring device is required to be used for detecting the water quality and air of a mine during mining; however, when a user uses the environment monitoring device to detect water samples and gas samples, the traditional collection mode has low efficiency and low speed, and the use of the user is influenced; when a user uses the environment monitoring device to detect the mine environment, various dangerous factors in a mine can influence the life safety of detection personnel.
In order to solve the problems, the application provides an environment monitoring device for geological mining of a mine.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides an environmental monitoring device is adopted in mining geology exploitation, have and do not need measurement personnel to involve in danger, sampling speed is fast, the convenient characteristics of sampling.
In order to achieve the above object, the utility model provides a following technical scheme: an environment monitoring device for geological mining of a mine comprises an unmanned aerial vehicle assembly, a gas collecting assembly and a water sample collecting assembly, wherein the unmanned aerial vehicle assembly comprises a machine body, a protective net, a camera probe, a fixing plate and supporting legs, the protective net is fixed on the upper surface of the machine body, the camera probe is rotatably connected to the lower surface of the machine body, two groups of fixing plates are fixed on two sides of the lower surface of the machine body, and two groups of supporting legs are fixed at the bottom ends of the fixing plates;
the gas collecting assembly comprises gas collecting pipes, a piston block, a sliding rod, a fixed rod, a driving motor, a screw rod, a gas inlet pipe, a leakage-proof film and a filter screen, wherein the gas collecting pipes are arranged between the fixed plates, the left side wall of the gas collecting pipes is fixedly connected with the outer wall of the fixed plate, the piston block is arranged in the gas collecting pipes, the piston block is slidably connected with the gas collecting pipes, the sliding rod is arranged on one side of the piston block, the piston block is fixedly connected with the sliding rod, the fixed rod is arranged on one side of the sliding rod, one end of the fixed rod is fixed on the surface of the fixed plate on the right side, the other end of the fixed rod is slidably connected with the sliding rod, the driving motor is arranged above the fixed rod, and the right side of the driving motor penetrates through the surface of the fixed plate and is fixedly connected with the fixed plate, the screw rod is fixed at the output end of the driving motor, threads are formed in the outer side wall of the screw rod and meshed with the upper surface of the sliding rod, the air inlet pipe is arranged on the upper surface of the air collecting pipe, the air inlet pipe penetrates through the outer side wall of the air collecting pipe and is communicated with the air collecting pipe, the anti-leakage film is installed inside the air inlet pipe, and the filter screen is fixed on the outer side wall of the air inlet pipe;
the water sample collecting assembly comprises water collecting pipes, control valves, piston sheets, pneumatic pipes, pneumatic bottles and air pumps, wherein the water collecting pipes are arranged on two sides of the fixing plate far away from the fixing plate, the water collecting pipes are fixed on the surface of the fixing plate, the water collecting pipes are fixed at the bottom ends of the water collecting pipes, the water collecting pipes are communicated with the water collecting pipes, the control valves are fixed on the upper surface of the water collecting pipes, the control valves are communicated with the water collecting pipes, the piston sheets are arranged in the water collecting pipes, the piston sheets are connected with the water collecting pipes in a sliding mode, the pneumatic pipes are fixed on the upper surface of the control valves, the pneumatic pipes penetrate through the surface of the fixing plate and extend to the other side of the fixing plate, the pneumatic bottles are fixed at one end, far away from the control valves, of the driving motors, and the pneumatic bottles are fixed on the upper surface of the gas collecting pipes, and the air pump is arranged on one side of the pneumatic bottle, and the input end of the air pump is communicated with the pneumatic bottle.
As the utility model relates to an environmental monitoring device is preferred for mining geology, the discharge with the slide bar is the hollow tubular structure of rectangle.
As the utility model relates to an environmental monitoring device is preferred for mining geology, the lead screw is kept away from driving motor's one end pass through the bearing with the discharge rotates to be connected.
As the utility model relates to an environmental monitoring device is preferred for mining geology, the upper surface of leak protection membrane is equipped with a plurality of rubber columnar structure, the upper surface columnar structure of leak protection membrane runs through the internal surface of intake pipe and with intake pipe fixed connection.
As the utility model relates to an environmental monitoring device is preferred for mining geology, the collector pipe the pipe that absorbs water the control valve the piston piece with pneumatic tube all is equipped with six groups, six groups the collector pipe is fixed respectively two sets of the surface of fixed plate.
As the utility model relates to an environmental monitoring device is preferred for mining geology, the output of air pump upwards sets up, the lower fixed surface of air pump is in the upper surface of discharge.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses based on unmanned aerial vehicle technique, adopt unmanned aerial vehicle to sample in mine and mine, avoid the casualties, convenience of customers uses.
2. The utility model discloses come and go conveniently in each collection place, it is fast, efficient to gather the sample, offers convenience for the user.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the water collecting pipe of the present invention;
fig. 3 is a schematic sectional view of the gas collecting tube of the present invention;
fig. 4 is an enlarged schematic structural view of a portion a of fig. 3 according to the present invention;
in the figure:
1. an unmanned aerial vehicle component; 11. a body; 12. a protective net; 13. a camera probe; 14. a fixing plate; 15. supporting legs;
2. a gas collection assembly; 21. a gas collecting pipe; 22. a piston block; 23. a slide bar; 24. fixing the rod; 25. a drive motor; 26. a screw rod; 27. an air inlet pipe; 28. a leak-proof membrane; 29. filtering with a screen;
3. a water sample collection assembly; 31. a water collection pipe; 32. a suction pipe; 33. a control valve; 34. a piston plate; 35. a pneumatic tube; 36. a pneumatic bottle; 37. an air pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions: an environment monitoring device for mining geological exploration comprises an unmanned aerial vehicle assembly 1, a gas collecting assembly 2 and a water sample collecting assembly 3, wherein the unmanned aerial vehicle assembly 1 comprises a machine body 11, a protective net 12, a camera probe 13, fixing plates 14 and supporting legs 15, the protective net 12 is fixed on the upper surface of the machine body 11, the camera probe 13 is rotatably connected to the lower surface of the machine body 11, two groups of fixing plates 14 are fixed on two sides of the lower surface of the machine body 11, and two groups of supporting legs 15 are fixed at the bottom ends of the fixing plates 14;
the gas collecting component 2 comprises gas collecting pipes 21, piston blocks 22, sliding rods 23, fixing rods 24, a driving motor 25, a screw rod 26, a gas inlet pipe 27, a leakage-proof film 28 and a filter screen 29, wherein the gas collecting pipes 21 are arranged between the fixing plates 14, the left side outer wall of the gas collecting pipe 21 is fixedly connected with the outer wall of the fixing plate 14, the piston blocks 22 are arranged inside the gas collecting pipes 21, the piston blocks 22 are slidably connected with the gas collecting pipes 21, the sliding rods 23 are arranged on one sides of the piston blocks 22, the piston blocks 22 are fixedly connected with the sliding rods 23, the fixing rods 24 are arranged on one sides of the sliding rods 23, one ends of the fixing rods 24 are fixed on the surface of the fixing plate 14 on the right side, the other ends of the fixing rods 24 are slidably connected with the sliding rods 23, the driving motor 25 is arranged above the fixing rods 24, the right side of the driving motor 25 penetrates through the surface of the fixing plate 14 and is fixedly connected with the fixing plate 14, and the screw rod 26 is fixed at the output end of the driving motor 25, the outer side wall of the screw rod 26 is provided with threads and is meshed with the upper surface of the sliding rod 23, the upper surface of the gas collecting pipe 21 is provided with a gas inlet pipe 27, the gas inlet pipe 27 penetrates through the outer side wall of the gas collecting pipe 21 and is communicated with the gas collecting pipe 21, a leakage-proof film 28 is arranged inside the gas inlet pipe 27, and a filter screen 29 is fixed on the outer side wall of the gas inlet pipe 27;
the water sample collecting component 3 comprises a water collecting pipe 31, water suction pipes 32, a control valve 33, a piston sheet 34, a pneumatic pipe 35, a pneumatic bottle 36 and an air pump 37, wherein the water collecting pipe 31 is arranged at two sides of the fixing plate 14 which are far away from each other, the water collecting pipe 31 is fixed on the surface of the fixing plate 14, the water suction pipes 32 are fixed at the bottom end of the water collecting pipe 31, the water suction pipes 32 are communicated with the water collecting pipe 31, the control valve 33 is fixed on the upper surface of the water collecting pipe 31, and the control valve 33 is communicated with the water suction pipe 32, a piston sheet 34 is arranged inside the water collection pipe 31, the piston sheet 34 is connected with the water collection pipe 31 in a sliding manner, a pneumatic pipe 35 is fixed on the upper surface of the control valve 33, the pneumatic pipe 35 penetrates through the surface of the fixing plate 14 and extends to the other side of the fixing plate 14, a pneumatic bottle 36 is fixed at one end of the driving motor 25, which is far away from the control valve 33, the pneumatic bottle 36 is fixed on the upper surface of the gas collection pipe 21, an air pump 37 is arranged on one side of the pneumatic bottle 36, and the input end of the air pump 37 is communicated with the pneumatic bottle 36.
It should be noted that: in this embodiment, install wireless control module in the organism 11, the measurement personnel passes through the operation of wireless control module the utility model discloses the operation.
In this embodiment: the storage battery and the inverter are installed in the machine body 11, the camera probe 13, the driving motor 25 and the air inlet pipe 27 are electrically connected with the storage battery in the machine body 11, when a user uses the utility model, the unmanned aerial vehicle component 1 of the utility model is operated by the wireless control module, the position of the utility model is observed by the camera probe 13, the utility model is driven to a collection place, the driving motor 25 is started by the wireless control module, the driving motor 25 rotates to drive the screw rod 26 to rotate, the screw rod 26 is meshed with the sliding rod 23 to drive the sliding rod 23 to slide rightwards, the sliding rod 23 drives the piston block 22 to slide rightwards in the gas collecting pipe 21, the gas jacks up the leakage-proof membrane 28 downwards, the gas enters the gas collecting pipe 21 through the air inlet pipe 27, the sampling and collection of the gas are realized, the columnar structure on the surface of the leakage-proof membrane 28 makes the leakage-proof membrane 28 attached with the air inlet pipe 27, the gas is prevented from being discharged, the user hovers the utility model on the water sample surface, the air pump 37 is started, the air pump 37 makes the air bottle 36 in a negative pressure environment, the control valve 33 is opened, and the water suction pipe 32 sucks the water sample into the water collecting pipe 31. Realize the collection of water sample, the user will the utility model discloses withdraw the back, insert back reverse start driving motor 25 with the tubule from intake pipe 27, can extract the gas in the discharge 21, reverse start air pump 37, air pump 37 aerifys to pneumatic bottle 36, and piston piece 34 downstream extrudes the water in the collector pipe 31, the utility model is simple in operation convenient to use.
Furthermore, the gas collecting pipe 21 and the sliding rod 23 are both rectangular hollow tubular structures, and through the design, the sliding rod 23 is prevented from rotating in the gas collecting pipe 21, so that the screw rod 26 can rotate to be meshed with the sliding rod 23 to enable the sliding rod 23 to slide in the gas collecting pipe 21, and the use is facilitated for users.
Furthermore, one end of the screw rod 26, which is far away from the driving motor 25, is rotatably connected with the gas collecting pipe 21 through a bearing, so that the screw rod 26 and the gas collecting pipe 21 are firmly fixed, the screw rod 26 is prevented from being separated from the surface of the sliding rod 23, and convenience is provided for users.
Further, the upper surface of leak protection membrane 28 is equipped with a plurality of rubber system column structures, and the upper surface column structure of leak protection membrane 28 runs through intake pipe 27's internal surface and with intake pipe 27 fixed connection, through this design, makes the utility model discloses an intake pipe 27 can pin the air in the discharge 21, prevents that the gas appearance from flowing, and convenience of customers uses.
Furthermore, the water collecting pipes 31, the water suction pipes 32, the control valve 33, the piston sheet 34 and the pneumatic pipe 35 are all provided with six groups, and the six groups of water collecting pipes 31 are respectively fixed on the surfaces of the two groups of fixing plates 14.
Further, the output end of the air pump 37 is arranged upwards, the lower surface of the air pump 37 is fixed on the upper surface of the air collecting pipe 21, and through the design, the exposed end of the air pump 37 is prevented from being blocked by sundries, so that water is prevented from entering the air pump 37 to damage the air pump 37 during water sample extraction, and convenience is brought to users.
The utility model discloses a theory of operation and use flow: the storage battery and the inverter are installed in the machine body 11, the camera probe 13, the driving motor 25 and the air inlet pipe 27 are electrically connected with the storage battery in the machine body 11, when a user uses the utility model, the unmanned aerial vehicle component 1 of the utility model is operated by the wireless control module, the position of the utility model is observed by the camera probe 13, the utility model is driven to a collection place, the driving motor 25 is started by the wireless control module, the driving motor 25 rotates to drive the screw rod 26 to rotate, the screw rod 26 is meshed with the sliding rod 23 to drive the sliding rod 23 to slide rightwards, the sliding rod 23 drives the piston block 22 to slide rightwards in the gas collecting pipe 21, the gas jacks up the leakage-proof membrane 28 downwards, the gas enters the gas collecting pipe 21 through the air inlet pipe 27, the sampling and collection of the gas are realized, the columnar structure on the surface of the leakage-proof membrane 28 makes the leakage-proof membrane 28 attached with the air inlet pipe 27, the gas is prevented from being discharged, the user hovers the utility model on the water sample surface, the air pump 37 is started, the air pump 37 makes the air bottle 36 in a negative pressure environment, the control valve 33 is opened, and the water suction pipe 32 sucks the water sample into the water collecting pipe 31. Realize the collection of water sample, the user will the utility model discloses withdraw the back, insert back reverse start driving motor 25 with the tubule from intake pipe 27, can extract the gas in the discharge 21, reverse start air pump 37, air pump 37 aerifys to pneumatic bottle 36, and piston piece 34 downstream extrudes the water in the collector pipe 31, the utility model is simple in operation convenient to use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an environmental monitoring device is used in mining geology which characterized in that: the unmanned aerial vehicle comprises an unmanned aerial vehicle assembly (1), a gas collecting assembly (2) and a water sample collecting assembly (3), wherein the unmanned aerial vehicle assembly (1) comprises a machine body (11), a protective net (12), a camera probe (13), fixing plates (14) and supporting legs (15), the protective net (12) is fixed on the upper surface of the machine body (11), the camera probe (13) is rotatably connected to the lower surface of the machine body (11), two groups of the fixing plates (14) are fixed on two sides of the lower surface of the machine body (11), and two groups of the supporting legs (15) are fixed at the bottom ends of the fixing plates (14);
the gas collecting assembly (2) comprises a gas collecting pipe (21), a piston block (22), a sliding rod (23), a fixing rod (24), a driving motor (25), a screw rod (26), an air inlet pipe (27), a leakage-proof film (28) and a filter screen (29), wherein the gas collecting pipe (21) is arranged between the fixing plates (14), the left outer side wall of the gas collecting pipe (21) is fixedly connected with the outer side wall of the fixing plate (14), the piston block (22) is arranged in the gas collecting pipe (21), the piston block (22) is slidably connected with the gas collecting pipe (21), the sliding rod (23) is arranged on one side of the piston block (22), the piston block (22) is fixedly connected with the sliding rod (23), the fixing rod (24) is arranged on one side of the sliding rod (23), one end of the fixing rod (24) is fixed on the surface of the fixing plate (14) on the right side, the other end of the fixed rod (24) is connected with the sliding rod (23) in a sliding manner, the driving motor (25) is arranged above the fixed rod (24), the right side of the driving motor (25) penetrates through the surface of the fixed plate (14) and is fixedly connected with the fixed plate (14), the output end of the driving motor (25) is fixedly provided with the lead screw (26), the outer side wall of the lead screw (26) is provided with threads and is meshed with the upper surface of the sliding rod (23), the upper surface of the gas collecting pipe (21) is provided with the gas inlet pipe (27), the gas inlet pipe (27) penetrates through the outer side wall of the gas collecting pipe (21) and is communicated with the gas collecting pipe (21), the leak-proof film (28) is installed inside the gas inlet pipe (27), and the outer side wall of the gas inlet pipe (27) is fixedly provided with the filter screen (29);
the water sample collecting assembly (3) comprises a water collecting pipe (31), a water suction pipe (32), a control valve (33), a piston sheet (34), an air-operated pipe (35), an air pump (37), wherein the water collecting pipe (31) is arranged on two sides, far away from the fixing plate (14), of the fixing plate (14), the water collecting pipe (31) is fixed on the surface of the fixing plate (14), the bottom end of the water collecting pipe (31) is fixed with the water suction pipe (32), the water suction pipe (32) is communicated with the water collecting pipe (31), the upper surface of the water collecting pipe (31) is fixed with the control valve (33), the control valve (33) is communicated with the water suction pipe (32), the piston sheet (34) is arranged inside the water collecting pipe (31), the piston sheet (34) is connected with the water collecting pipe (31) in a sliding mode, the air-operated pipe (35) is fixed on the upper surface of the control valve (33), the pneumatic tube (35) runs through the surface of the fixing plate (14) and extends to the other side of the fixing plate (14), one end, far away from the control valve (33), of the driving motor (25) is fixed with the pneumatic bottle (36), the pneumatic bottle (36) is fixed on the upper surface of the gas collecting tube (21), the air pump (37) is arranged on one side of the pneumatic bottle (36), and the input end of the air pump (37) is communicated with the pneumatic bottle (36).
2. The mining geology mining environment monitoring device of claim 1, characterized in that: the gas collecting pipe (21) and the sliding rod (23) are both rectangular hollow tubular structures.
3. The mining geology mining environment monitoring device of claim 1, characterized in that: one end of the screw rod (26) far away from the driving motor (25) is rotatably connected with the gas collecting pipe (21) through a bearing.
4. The mining geology mining environment monitoring device of claim 1, characterized in that: the upper surface of leak protection membrane (28) is equipped with a plurality of rubber system columnar structure, the upper surface columnar structure of leak protection membrane (28) runs through the internal surface of intake pipe (27) and with intake pipe (27) fixed connection.
5. The mining geology mining environment monitoring device of claim 1, characterized in that: the water collecting pipes (31), the water suction pipes (32), the control valves (33), the piston sheets (34) and the pneumatic pipes (35) are all provided with six groups, and the six groups of water collecting pipes (31) are respectively fixed on the surfaces of the two groups of fixing plates (14).
6. The mining geology mining environment monitoring device of claim 1, characterized in that: the output end of the air pump (37) is arranged upwards, and the lower surface of the air pump (37) is fixed on the upper surface of the air collecting pipe (21).
CN202120189988.6U 2021-01-20 2021-01-20 Environment monitoring device for geological mining of mine Active CN214472005U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120189988.6U CN214472005U (en) 2021-01-20 2021-01-20 Environment monitoring device for geological mining of mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120189988.6U CN214472005U (en) 2021-01-20 2021-01-20 Environment monitoring device for geological mining of mine

Publications (1)

Publication Number Publication Date
CN214472005U true CN214472005U (en) 2021-10-22

Family

ID=78113964

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120189988.6U Active CN214472005U (en) 2021-01-20 2021-01-20 Environment monitoring device for geological mining of mine

Country Status (1)

Country Link
CN (1) CN214472005U (en)

Similar Documents

Publication Publication Date Title
CN208254864U (en) A kind of environmental project water quality detection sampler
CN214502965U (en) Portable raw soil sampling device
CN214472005U (en) Environment monitoring device for geological mining of mine
CN214503006U (en) Air bag type depth-setting totally-enclosed artificial water quality sample collector
CN209264367U (en) A kind of water quality detection sampling equipment
CN212363813U (en) Gas collection and collection device for environment detection
CN113049309A (en) Sampling collection and inspection integrated device used in clinical laboratory
CN216669909U (en) Eliminate pressure storehouse device of bubble and detection high viscosity sample
CN214408226U (en) Water nuclear pollution detection device
CN214471991U (en) On-spot sewage sampling device is used in environmental monitoring
CN212483004U (en) Water quality sampling equipment for underground water environment detection
CN214503007U (en) Hinge type depth-setting totally-enclosed artificial water quality sample collector
CN206095689U (en) Modular water sampling ware
CN219455619U (en) Atmospheric sample extraction device
CN215448636U (en) Sampling tool for chemical laboratory for water environment detection
CN214150020U (en) Sampling tool for traditional Chinese medicine detection
CN205844045U (en) A kind of data acquisition gas sampling device accurately
CN218035912U (en) Multichannel atmospheric sampling device
CN220751739U (en) Collector for detecting ecological environment water sample
CN216433633U (en) Push type water taking device for geological drilling
CN217443300U (en) Environment real-time monitoring and gas sampling device
CN219224292U (en) Sampling device for lampblack detection
CN213397848U (en) Large capacity environmental monitoring collection system
CN219989484U (en) Sinking and floating control device of underwater detector
CN218725680U (en) Pollutant sampling device for environmental engineering detection

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant