CN213273565U - Soil drying cabinet for environmental protection - Google Patents
Soil drying cabinet for environmental protection Download PDFInfo
- Publication number
- CN213273565U CN213273565U CN202021443072.0U CN202021443072U CN213273565U CN 213273565 U CN213273565 U CN 213273565U CN 202021443072 U CN202021443072 U CN 202021443072U CN 213273565 U CN213273565 U CN 213273565U
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- China
- Prior art keywords
- box
- stirring
- fixedly connected
- screening
- soil
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- 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.)
- Expired - Fee Related
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- 239000002689 soil Substances 0.000 title claims abstract description 91
- 238000001035 drying Methods 0.000 title claims abstract description 53
- 230000007613 environmental effect Effects 0.000 title claims description 8
- 238000003756 stirring Methods 0.000 claims abstract description 104
- 238000012216 screening Methods 0.000 claims abstract description 80
- 238000010438 heat treatment Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009931 harmful effect Effects 0.000 description 4
- 241000220317 Rosa Species 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001075561 Fioria Species 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses an environment-friendly soil drying box, which relates to the technical field of environment-friendly soil drying boxes, and aims at the problem of low working efficiency of the existing soil drying device, the following proposal is proposed, which comprises a stirring box, the outer side of the stirring box is slidably connected with a sliding plate fixedly connected with the inner wall of the working box, the middle of the lower bottom plate of the stirring box is fixedly connected with a stirring motor, the output end of the stirring motor is fixedly connected with a stirring shaft rotationally connected with the lower bottom plate of the stirring box through a shaft coupling, the outer wall of the stirring shaft is fixedly connected with a plurality of stirring fan blades, the utility model has simple structure and convenient use, and the soil is crushed and screened through the matching work of the stirring box and a screening box in the working box, thereby accelerating the soil drying speed, and simultaneously crushing and screening the soil, so that the dried soil can be directly used, the working strength of workers is reduced, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a soil drying technology field is used in the environmental protection, especially relates to a soil drying cabinet is used in environmental protection.
Background
In the fields of agricultural science and environmental science, after a soil sample is collected, the soil sample needs to be dried before relevant indexes such as soil pH, organic matters, CEC, nutrient elements, trace elements, heavy metal element content and the like are analyzed.
Traditional soil drying device is when drying to soil, only carries out the drying to soil through the mode that blows or heat, and soil stoving work efficiency is low to soil after the stoving need pulverize, sieve the back through the manual work, just can use, has increased staff's working strength, has reduced work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of soil drying cabinet for environmental protection has solved the problem that traditional soil drying device work efficiency is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an environment-friendly soil drying box comprises a working box, wherein the upper side of the working box is fixedly connected with a blower, the input end of the blower is fixedly connected with a filter box, the output end of the blower is fixedly connected with an air supply pipe, the other end of the air supply pipe is rotatably sleeved with a threaded sleeve, the other end of the threaded sleeve is in threaded sleeve connection with a stirring box, the outer side of the stirring box is in sliding connection with a sliding plate fixedly connected with the inner wall of the working box, the middle of the lower bottom plate of the stirring box is fixedly connected with a stirring motor, the output end of the stirring motor is fixedly connected with a stirring shaft rotatably connected with the lower bottom plate of the stirring box through a coupler, the outer wall of the stirring shaft is fixedly connected with a plurality of stirring blades, the upper side of the stirring box is rotatably connected with a stirring box cover, the stirring box cover and the lower bottom plate of the stirring box are both provided with a plurality of, the utility model discloses a screening box, including the inner wall fixedly connected with of work box, the inner wall fixedly connected with of work box is located the slide rail of agitator tank below, the rail wall sliding connection of slide rail has the screening case, the inner wall sliding connection of screening case has two screening boxes, two a plurality of second holes have all been seted up to the bottom plate of screening box, the below of screening box is provided with the collection box with the inner wall sliding connection of screening case, a plurality of heating rods of the inner wall fixedly connected with of screening case, the interior bottom plate fixedly connected with disturbance motor of work box, the output end fixedly connected with crank link mechanism of disturbance motor, and crank link mechanism's the other end and the downside fixed connection of screening case, the upside fixedly connected with blast pipe of work box.
Preferably, one side of the working box is rotatably connected with a sealing door, and the upper side of the filter box is fixedly connected with an air inlet pipe.
Preferably, crank link mechanism is including the swiveling wheel that fixedly cup joints with the output end of disturbance motor, one side fixedly connected with rotation axis of disturbance motor shell is kept away from to the swiveling wheel, the outer wall of rotation axis rotates and has cup jointed transmission connecting rod, and transmission connecting rod's the other end rotate be connected with screening case fixed connection's fixed block.
Preferably, the inner wall of the blast pipe is fixedly connected with a heating wire, and an included angle between one side of the threaded sleeve and the side of the stirring box is an angle.
Preferably, the inner wall of the screening box is provided with a plurality of groups of sliding grooves, and the screening box and the collecting box are both in sliding connection with the groove walls of the sliding grooves.
Preferably, the ventilating plate is provided with activated carbon, and the filter box is filled with filter cotton.
The utility model has the advantages that:
1: the utility model discloses install the agitator tank in the work box, cooperation work through agitator motor and stirring fan blade in the agitator tank, soil to the drying cabinet in pulverize and the stirring, deuterogamy blows the hot-blast in the agitator tank from the blast pipe, thereby accelerate the drying rate of soil, soil after pulverizing simultaneously drops to the screening incasement, through screening box, the heating rod, disturbance motor and crank link mechanism's cooperation work, carry out the layering screening heating with the soil of screening incasement, not only accelerate the drying rate of soil, still pulverize and filter soil, staff's working strength has been reduced, and the work efficiency is improved.
2: the utility model discloses through at screening incasement slidable mounting screening box and collection box, make screening box and collection box can slide and take out to after soil drying work, directly will screen the box and collect the box and slide from screening the case and take out, be convenient for collect the soil after the drying, simultaneously through with agitator tank slidable mounting in the work box, after soil drying work, can slide the agitator tank and take out, be convenient for clean the agitator tank.
Drawings
Fig. 1 is a schematic front sectional view of an environment-friendly soil drying box provided by the present invention;
fig. 2 is a left side sectional view of the environment-friendly soil drying box provided by the present invention;
fig. 3 is a schematic top view of an environment-friendly soil drying box according to the present invention;
fig. 4 is the utility model provides a threaded sleeve main view cross-sectional view of soil drying cabinet for environmental protection.
Reference numbers in the figures: 1. working box, 2, forced draught blower, 3, rose box, 4, intake pipe, 5, ventilating board, 6, agitator tank lid, 7, agitator tank, 8, screw thread sleeve pipe, 9, slide, 10, screening case, 11, heating rod, 12, slide rail, 13, crank link mechanism, 14, disturbance motor, 15, screening box, 16, heater strip, 17, stirring fan leaf, 18, agitator motor, 19, (mixing) shaft, 20, blast pipe, 21, sealing door, 22, blast pipe, 23, swiveling wheel, 24, drive link, 25, fixed block, 26, rotation axis, 27, collection box.
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.
Referring to fig. 1-4, an environment-friendly soil drying box comprises a working box 1, a blower 2 is fixedly connected to the upper side of the working box 1, a filter box 3 is fixedly connected to the input end of the blower 2, a blast pipe 20 is fixedly connected to the output end of the blower 2, a threaded sleeve 8 is rotatably sleeved on the other end of the blast pipe 20, a stirring box 7 is rotatably sleeved on the other end of the threaded sleeve 8, a sliding plate 9 fixedly connected to the inner wall of the working box 1 is slidably connected to the outer side of the stirring box 7, a stirring motor 18 is fixedly connected to the middle of the lower bottom plate of the stirring box 7, a stirring shaft 19 rotatably connected to the lower bottom plate of the stirring box 7 is fixedly connected to the output end of the stirring motor 18 through a coupler, a plurality of stirring blades 17 are fixedly connected to the outer wall of the stirring shaft 19, a stirring box cover 6 is rotatably connected to the upper side of the stirring box, the top of agitator tank 7 is provided with ventilating board 5 with 1 inner wall fixed connection of work box, the inner wall fixedly connected with of work box 1 is located slide rail 12 of agitator tank 7 below, the rail wall sliding connection of slide rail 12 has screening case 10, the inner wall sliding connection of screening case 10 has two screening boxes 15, a plurality of second holes have all been seted up to the bottom plate of two screening boxes 15, the below of screening box 15 is provided with the collection box 27 with the inner wall sliding connection of screening case 10, a plurality of heating rods 11 of the inner wall fixedly connected with of screening case 10, interior bottom plate fixedly connected with disturbance motor 14 of work box 1, the output end fixedly connected with crank link mechanism 13 of disturbance motor 14, and the other end of crank link mechanism 13 and the downside fixed connection of screening case 10, the upside fixedly connected with blast pipe 22 of work box 1.
When an experimenter needs to dry soil, firstly, the sealing door 21 is opened, then the stirring box cover 6 is opened, the soil to be dried is placed in the stirring box 7, then, the stirring box cover 6 and the sealing door 21 are closed, the experimenter starts the air feeder 2, the heating wire 16, the stirring motor 18, the heating rod 11 and the disturbance motor 14 through an external control device to start drying the soil, at the moment, the air feeder 2 sends external air into the stirring box 7 through the filter box 3, the air supply pipe 20 and the threaded sleeve 8, when the air passes through the heating wire 16 in the air supply pipe 20, the heating wire 16 heats the air, hot air flows in the stirring box 7 to take away moisture in the soil, primary drying is carried out on the soil in the drying box 7, and meanwhile, the stirring shaft 19 and the stirring fan blades 17 are driven to rotate through the operation of the stirring motor 18 in the stirring box 7, stirring and smashing soil in the stirring box 7 by the stirring fan blades 17, dropping the smashed soil into the screening box 10 from a first hole on a bottom plate of the stirring box 7, reserving larger stones and branches in the soil in the stirring box 7, detaching the threaded sleeve 8 from the stirring box 7 by rotating the threaded sleeve 8 after the soil drying operation is finished, taking the stirring box 7 out of the drying box 1, so as to conveniently collect the remaining stones, branches and other impurities in the drying box 7, driving the screening box 10 to slide back and forth on the slide rail 12 by the disturbance motor 14 through the crank-link mechanism 13, firstly enabling the soil entering the screening box 10 to slide back and forth in the screening box 15 positioned above, screening the soil on the screening box 15 when the screening box 10 slides back and forth, wherein the aperture of a second hole on the bottom plate of the screening box 15 positioned above is larger than that of a second hole on the bottom plate of the screening box 15 positioned below, smaller soil particles fall into the screening box 15 positioned below through the second holes, further finer soil falls into the collecting box 27, the soil on the screening box 15 and the collecting box 27 is heated and dried through the heating operation of the heating rod 11 inside the screening box 10, when the screening box 10 slides back and forth, the soil particles on the screening box 15 and the collecting box 27 roll, so that the soil particles can be uniformly heated and dried, the soil drying speed is accelerated, the phenomenon of incomplete drying is avoided, the heating rod 11 heats the gas in the screening box 10 nearby in the working process, the heated gas rises upwards due to the heat convection phenomenon of the gas, the gas rises into the stirring box 7 through the first holes in the bottom plate of the screening box 10, the soil in the stirring box 7 is dried, the drying effect of the soil in the stirring box 7 is enhanced, and the gas in the stirring box 7 flows through the second holes in the stirring box cover 6, The ventilation board 5 and the exhaust pipe 22 are exhausted to the air.
Inner wall fixedly connected with heater strip 16 of blast pipe 20, the contained angle that threaded sleeve 8 is connected one side with agitator tank 7 is 45 degrees angles, air that will get into in agitator tank 7 through heater strip 16 heats, thereby the drying rate of the soil in the agitator tank 7 with higher speed, simultaneously through being connected threaded sleeve 8 with agitator tank 7 slope 45 degrees angles, make the air current that gets into in agitator tank 7 form the vortex, the direction of rotation of vortex is opposite with agitator blade 17's direction of motion, strengthened the vortex and smuggled soil and agitator blade 17's collision strength secretly, soil in the agitator tank 7 is bigger with the area of contact of air current simultaneously, thereby the stirring and the drying effect of soil in the agitator tank 7 have been strengthened.
The multiunit spout has been seted up to the inner wall of screening case 10, and screening box 15 and collection box 27 all with the cell wall sliding connection of spout, after soil drying work, open sealing door 21 back, can collect box 27 with screening box 15 box and slide from screening case 10 and take out to be convenient for collect the soil after the drying.
The 5 tops of ventilating board are provided with the active carbon, and 3 intussuseptions of rose box are filled with the filter pulp, will filter from the exhaust gas in the work box 1 through the active carbon, prevent that the harmful substance in the gas from entering into the air, produce harmful effects to the environment, and the gas that gets into in the work box 1 filters through the filter pulp in the rose box 3 at first, prevents in the air that the material of influential experimental result sneakes into soil to reduce experimental error.
The working principle is as follows: when an experimenter needs to dry soil, firstly the sealing door 21 is opened, then the stirring box cover 6 is opened, the soil to be dried is put into the stirring box 7, then the stirring box cover 6 and the sealing door 21 are closed, the experimenter starts the air feeder 2, the heating wire 16, the stirring motor 18, the heating rod 11 and the disturbance motor 14 through an external control device to start drying the soil, at the moment, the air feeder 2 sends external air into the stirring box 7 through the filter box 3, the air supply pipe 20 and the threaded sleeve 8, the air entering the working box 1 is firstly filtered through filter cotton in the filter box 3, substances influencing experimental results in the air are prevented from being mixed into the soil, so that experimental errors are reduced, when the air passes through the heating wire 16 in the air supply pipe 20, the heating wire 16 heats the air, hot air flows in the stirring box 7, the water in the soil is taken away, the soil in the drying box 7 is primarily dried, meanwhile, the stirring motor 18 in the stirring box 7 works to drive the stirring shaft 19 and the stirring fan blades 17 to rotate, the stirring fan blades 17 stir and smash the soil in the stirring box 7, the smashed soil falls into the screening box 10 from a first hole on the lower bottom plate of the stirring box 7, larger stones and branches in the soil are remained in the stirring box 7, the airflow entering the stirring box 7 forms a vortex by connecting the threaded sleeve 8 with the stirring box 7 at an inclined angle of 45 degrees, the rotation direction of the vortex is opposite to the movement direction of the stirring fan blades 17, the collision strength of the vortex carrying the soil and the stirring fan blades 17 is enhanced, meanwhile, the contact area of the soil in the stirring box 7 and the airflow is larger, so that the stirring and drying effects of the soil in the drying box 7 are enhanced, and after the soil drying work is finished, the threaded sleeve 8 is detached from the stirring box 7 by rotating the threaded sleeve 8, the threaded sleeve 8 is of an external thread structure, then the stirring box 7 is taken out from the drying box 1, so that sundries such as residual stones and tree branches in the drying box 7 can be collected conveniently, the disturbance motor 14 drives the rotating wheel 26 to rotate when in work, the rotating wheel 26 further rotates to drive the rotating shaft 26, the transmission connecting rod 24 and the fixed block 25 to move together, the fixed block 25 drives the screening box 10 to slide back and forth on the sliding rail 12, soil entering the screening box 10 is firstly in the screening box 15 positioned above, when the screening box 10 slides back and forth, soil on the screening box 15 is screened, the aperture of a second hole on the bottom plate of the screening box 15 positioned above is larger than that of a second hole on the bottom plate of the screening box 15 positioned below, and smaller soil particles fall into the screening box 15 positioned below through the second hole, further thinner soil falls into the collection box 27, the soil on the screening box 15 and the collection box 27 is heated and dried through the heating work of the heating rod 11 inside the screening box 10, when the screening box 10 slides back and forth, soil particles on the screening box 15 and the collection box 27 roll, so that the soil particles can be uniformly heated and dried, the soil drying speed is accelerated, and the phenomenon of incomplete drying is avoided, the heating rod 11 heats the gas in the nearby screening box 10 in the work, due to the heat convection phenomenon of the gas, the heated gas rises upwards, rises into the stirring box 7 through the first hole on the bottom plate of the screening box 10, the soil in the stirring box 7 is dried, so that the drying effect of the soil in the stirring box 7 is enhanced, the gas in the stirring box 7 is discharged into the air through the second hole on the stirring box cover 6, the ventilation plate 5 and the exhaust pipe 22 in the flowing process, the active carbon that sets up through 5 tops of ventilating board will be followed the exhaust gas in the work box 1 and filtered, prevent that harmful substance in the gas from entering into the air, produce harmful effects to the environment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The environment-friendly soil drying box comprises a working box (1) and is characterized in that an air feeder (2) is fixedly connected to the upper side of the working box (1), a filter box (3) is fixedly connected to the input end of the air feeder (2), an air supply pipe (20) is fixedly connected to the output end of the air feeder (2), a threaded sleeve (8) is sleeved on the other end of the air supply pipe (20) in a rotating mode, a stirring box (7) is sleeved on the other end of the threaded sleeve (8) in a threaded mode, a sliding plate (9) fixedly connected with the inner wall of the working box (1) is connected to the outer side of the stirring box (7) in a sliding mode, a stirring motor (18) is fixedly connected to the middle of the lower bottom plate of the stirring box (7), a stirring shaft (19) fixedly connected with the lower bottom plate of the stirring box (7) in a rotating, the outer wall of the stirring shaft (19) is fixedly connected with a plurality of stirring fan blades (17), the upper side of the stirring box (7) is rotatably connected with a stirring box cover (6), the stirring box cover and the lower bottom plate of the stirring box (7) are respectively provided with a plurality of first holes, a ventilating plate (5) fixedly connected with the inner wall of the working box (1) is arranged above the stirring box (7), the inner wall of the working box (1) is fixedly connected with a sliding rail (12) positioned below the stirring box (7), the rail wall of the sliding rail (12) is slidably connected with a screening box (10), the inner wall of the screening box (10) is slidably connected with two screening boxes (15), the bottom plates of the two screening boxes (15) are respectively provided with a plurality of second holes, a collecting box (27) slidably connected with the inner wall of the screening box (10) is arranged below the screening box (15), and the inner wall of the screening box (10) is fixedly connected with a plurality of heating rods (11), interior bottom plate fixedly connected with disturbance motor (14) of work box (1), the output fixedly connected with crank link mechanism (13) of disturbance motor (14), and the downside fixed connection of the other end of crank link mechanism (13) and screening case (10), upside fixedly connected with blast pipe (22) of work box (1).
2. The environment-friendly soil drying box according to claim 1, wherein one side of the working box (1) is rotatably connected with a sealing door (21), and the upper side of the filter box (3) is fixedly connected with an air inlet pipe (4).
3. The environment-friendly soil drying box according to claim 1, wherein the crank-link mechanism (13) comprises a rotating wheel (23) fixedly sleeved with an output end of the disturbance motor (14), one side of the rotating wheel (23) far away from a shell of the disturbance motor (14) is fixedly connected with a rotating shaft (26), the outer wall of the rotating shaft (26) is rotatably sleeved with a transmission connecting rod (24), and the other end of the transmission connecting rod (24) is rotatably connected with a fixing block (25) fixedly connected with the screening box (10).
4. The environment-friendly soil drying box as claimed in claim 1, wherein the inner wall of the blast pipe (20) is fixedly connected with a heating wire (16), and the included angle of one side of the threaded sleeve (8) connected with the stirring box (7) is 45 degrees.
5. The environment-friendly soil drying box as claimed in claim 1, wherein the inner wall of the screening box (10) is provided with a plurality of sets of sliding grooves, and the screening box (15) and the collecting box (27) are both connected with the groove walls of the sliding grooves in a sliding manner.
6. The soil drying box for environmental protection as set forth in claim 1, wherein activated carbon is placed above the ventilation board (5), and the filter box (3) is filled with filter cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443072.0U CN213273565U (en) | 2020-07-21 | 2020-07-21 | Soil drying cabinet for environmental protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443072.0U CN213273565U (en) | 2020-07-21 | 2020-07-21 | Soil drying cabinet for environmental protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213273565U true CN213273565U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021443072.0U Expired - Fee Related CN213273565U (en) | 2020-07-21 | 2020-07-21 | Soil drying cabinet for environmental protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213273565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323737A (en) * | 2022-03-09 | 2022-04-12 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Hydraulic ring investigation sampling device |
-
2020
- 2020-07-21 CN CN202021443072.0U patent/CN213273565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323737A (en) * | 2022-03-09 | 2022-04-12 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Hydraulic ring investigation sampling device |
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