CN216593683U - Liquid level observation device for hydrogeology - Google Patents
Liquid level observation device for hydrogeology Download PDFInfo
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- CN216593683U CN216593683U CN202220156689.7U CN202220156689U CN216593683U CN 216593683 U CN216593683 U CN 216593683U CN 202220156689 U CN202220156689 U CN 202220156689U CN 216593683 U CN216593683 U CN 216593683U
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- 239000007788 liquid Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims description 32
- 238000004804 winding Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 5
- 239000000284 extract Substances 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
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Abstract
The utility model discloses a liquid level observation device for hydrogeology, including the L shaped plate that two symmetries set up, rotate between two L shaped plates and install same wind-up roll, the same horizontal pole of top fixedly connected with of two L shaped plates, around establishing and being fixed with the measuring rope on the wind-up roll, the front side of measuring rope is equipped with the scale mark, fixedly connected with band-type brake motor on the left side inner wall of the L shaped plate on right side, the output shaft left end of band-type brake motor and the right-hand member fixed connection of wind-up roll, the fixed and electric connection in bottom of band-type brake motor has first controller, is equipped with the box-shaped floating plate between two L shaped plates. The utility model discloses be convenient for in time report to the police when box-shaped floating plate and shutoff board reach the liquid level and remind personnel, reduce the phenomenon of measuring the rope and crossing putting, improve and measure the precision, and be convenient for extract the sample to water automatically when measuring the liquid level, do not need personnel to carry out the sample operation alone, make things convenient for personnel's operation, satisfy the user demand.
Description
Technical Field
The utility model relates to a liquid level observation equipment technical field especially relates to a liquid level observation device for hydrogeology.
Background
Hydrogeology is a law that the quantity and the quality of underground water change along with space, and the underground water is reasonably utilized or prevented from being damaged, in hydrogeology exploration work, the water level condition needs to be observed, most of the existing liquid level observation devices are placed in an observation well by connecting one end of a rope with a floating ball or a floating plate, and then, the general position of the rope is observed;
current liquid level observation device for hydrogeology, it is not convenient for in time report to the police and reminds personnel when floater ball or kickboard reach the water level, often exist personnel because of unable definite floater or kickboard floating state, release unnecessary rope and float on the surface of water, cause serious measuring error, and be not convenient for collect hydrogeology water when measuring the liquid level, examine time measuring when needs to quality of water, need use sampling device alone to take a sample, and complex operation is comparatively loaded down with trivial details, can not satisfy the user demand, therefore we have proposed a liquid level observation device for hydrogeology and is used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a liquid level observation device for hydrogeology.
In order to realize the purpose, the utility model adopts the following technical scheme:
a liquid level observation device for hydrogeology comprises two L-shaped plates which are symmetrically arranged, wherein a winding roller is rotatably arranged between the two L-shaped plates, the tops of the two L-shaped plates are fixedly connected with a cross rod, a measuring rope is wound and fixed on the winding roller, the front side of the measuring rope is provided with a scale mark, the left inner wall of the L-shaped plate on the right side is fixedly connected with a band-type brake motor, the left end of the output shaft of the band-type brake motor is fixedly connected with the right end of the winding roller, the bottom of the band-type brake motor is fixedly and electrically connected with a first controller, a box-shaped floating plate is arranged between the two L-shaped plates, the bottom of the box-shaped floating plate is fixedly connected with a plugging plate, the left inner wall of the box-shaped floating plate is provided with a mounting groove, the left inner wall of the mounting groove is fixedly connected with a storage battery, the top inner wall of the mounting groove is embedded with a buzzer, and the top of the buzzer extends to the top of the floating box-shaped plate, the fixed and electrically connected with second controller in top of battery, be equipped with the balancing weight in the box-shaped floating plate, the bottom of balancing weight extends to the below and the fixedly connected with limiting plate of shutoff board, the top of limiting plate and the bottom movable contact of shutoff board, the bottom of measuring the rope extend to in the box-shaped floating plate and with the top fixed connection of balancing weight, the equal fixedly connected with guiding mechanism in both sides of balancing weight, guiding mechanism fixed connection is between the top inner wall of box-shaped floating plate and the top of shutoff board, lie in and install trigger mechanism on the left guiding mechanism among two guiding mechanism, trigger mechanism and first controller and second controller electric connection, the aqua storage tank has been seted up to the bottom of balancing weight, the top right side of balancing weight is inlayed and is equipped with the mechanism of drawing water, the bottom of the mechanism of drawing water extends to the below of limiting plate.
Preferably, the guide mechanism comprises guide sleeves, one side of each guide sleeve, which is close to each other, is fixedly connected with two sides of the counterweight block respectively, two guide rods are fixedly connected between the inner wall of the top of the box-shaped floating plate and the top of the plugging plate, and the guide sleeves are movably sleeved on the corresponding guide rods.
Preferably, the trigger mechanism comprises an L-shaped moving rod, the bottom end of the L-shaped moving rod is fixedly connected with the top of the left guide sleeve, a first through hole is formed in one side of the left guide rod, a touch switch is fixedly connected to the inner wall of the bottom of the first through hole, the right end of the L-shaped moving rod extends into the first through hole, the L-shaped moving rod is matched with the touch switch, and the touch switch is electrically connected with the first controller and the second controller.
Preferably, the mechanism of drawing water includes the water pump, the mounting groove has been seted up on the top right side of balancing weight, water pump fixed mounting is on the bottom inner wall of mounting groove, the extraction end of water pump extends to the below and the fixedly connected with suction head of limiting plate, the play water end of water pump extends to in the aqua storage tank, the bottom of limiting plate is inlayed and is equipped with the drain pipe, the bottom fixedly connected with valve of drain pipe, the drain pipe is linked together with the aqua storage tank is inside, water pump and bee calling organ all with second controller electric connection, battery and water pump and bee calling organ electric connection, the built-in wireless remote control switch that has in the water pump, wireless remote control switch and second controller electric connection, the wireless remote control switch matching is provided with outside remote controller.
Preferably, the rotation groove has all been seted up to one side that two L shaped plates are close to each other, rotates the fixed cover in the groove and is equipped with first bearing, the equal fixedly connected with pivot in both ends of wind-up roll, the inboard outside fixed connection with the pivot that corresponds of inner circle of first bearing, the right-hand member of the pivot on right side and the output shaft left end fixed connection of band-type brake motor.
Preferably, the inner wall of the top of the box-shaped floating plate is provided with a first perforation, and the inner wall of the first perforation is movably contacted with the outer side of the measuring rope.
Preferably, two balls are embedded on the inner walls of the four sides of the guide sleeve, the guide rods are located between the eight corresponding balls, and the balls are in rolling contact with the outer sides of the corresponding guide rods.
Preferably, the top of closure plate has seted up the second and has perforated, and the outside bonding cladding of balancing weight has the rubber seal, the outside and the fenestrate inner wall movable contact of second of rubber seal.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be convenient for in time report to the police and remind personnel when box-shaped floating plate and shutoff board reach the liquid level, reduce the phenomenon of measuring the rope and crossing putting, improve and measure the precision, and be convenient for extract the sample to water automatically when measuring the liquid level, do not need personnel to carry out the operation of taking a sample alone, make things convenient for personnel to operate, satisfy the user demand.
Drawings
Fig. 1 is a schematic structural view of a hydrogeological liquid level observation device provided by the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: 100. an L-shaped plate; 101. a wind-up roll; 102. measuring a rope; 103. a band-type brake motor; 1. a box-shaped floating plate; 2. a plugging plate; 3. mounting grooves; 4. a storage battery; 5. a buzzer; 6. a guide bar; 7. a balancing weight; 8. a guide sleeve; 9. a first through hole; 10. an L-shaped travel bar; 11. a tact switch; 12. a limiting plate; 13. a water storage tank; 14. a water pump; 15. a suction head; 16. a second controller.
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. 1-3, a hydrogeology liquid level observation device comprises two L-shaped plates 100 which are symmetrically arranged, a same winding roll 101 is rotatably arranged between the two L-shaped plates 100, the tops of the two L-shaped plates 100 are fixedly connected with a same cross rod, a measuring rope 102 is wound and fixed on the winding roll 101, the front side of the measuring rope 102 is provided with scale marks, the left inner wall of the right L-shaped plate 100 is fixedly connected with a band-type brake motor 103, the left end of the output shaft of the band-type brake motor 103 is fixedly connected with the right end of the winding roll 101, the bottom of the band-type brake motor 103 is fixedly and electrically connected with a first controller, a box-shaped plate 1 is arranged between the two L-shaped plates 100, the bottom of the floating plate 1 is fixedly connected with a blocking plate 2, the left inner wall of the box-shaped floating plate 1 is provided with a mounting groove 3, the left inner wall of the mounting groove 3 is fixedly connected with a storage battery 4, and the top inner wall of the mounting groove 3 is embedded with a buzzer 5, the top of the buzzer 5 extends to the upper part of the box-shaped floating plate 1, the top of the storage battery 4 is fixedly and electrically connected with a second controller 16, a balancing weight 7 is arranged in the box-shaped floating plate 1, the bottom of the balancing weight 7 extends to the lower part of the plugging plate 2 and is fixedly connected with a limiting plate 12, the top of the limiting plate 12 is movably contacted with the bottom of the plugging plate 2, the bottom end of the measuring rope 102 extends into the box-shaped floating plate 1 and is fixedly connected with the top of the balancing weight 7, both sides of the balancing weight 7 are fixedly connected with guide mechanisms, the guide mechanisms are fixedly connected between the inner wall of the top of the box-shaped floating plate 1 and the top of the plugging plate 2, a trigger mechanism is arranged on the guide mechanism on the left side of the two guide mechanisms, the trigger mechanism is electrically connected with the first controller and the second controller 16, the bottom of the balancing weight 7 is provided with a water storage tank 13, and the right side of the top of the balancing weight 7 is embedded with a water pumping mechanism, the bottom of the water pumping mechanism extends to the lower part of the limiting plate 12;
the guide mechanism comprises guide sleeves 8, one sides of the two guide sleeves 8, which are close to each other, are fixedly connected with the two sides of the counterweight block 7 respectively, two guide rods 6 are fixedly connected between the inner wall of the top of the box-shaped floating plate 1 and the top of the plugging plate 2, and the guide sleeves 8 are movably sleeved on the corresponding guide rods 6;
the trigger mechanism comprises an L-shaped moving rod 10, the bottom end of the L-shaped moving rod 10 is fixedly connected with the top of the left guide sleeve 8, a first through hole 9 is formed in one side of the left guide rod 6, a light touch switch 11 is fixedly connected to the inner wall of the bottom of the first through hole 9, the right end of the L-shaped moving rod 10 extends into the first through hole 9, the L-shaped moving rod 10 is matched with the light touch switch 11, and the light touch switch 11 is electrically connected with a first controller and a second controller 16;
the water pumping mechanism comprises a water pump 14, the right side of the top of the counterweight block 7 is provided with a mounting groove, the water pump 14 is fixedly mounted on the inner wall of the bottom of the mounting groove, the extraction end of the water pump 14 extends to the lower part of the limiting plate 12 and is fixedly connected with a water suction head 15, the water outlet end of the water pump 14 extends into the water storage tank 13, the bottom of the limiting plate 12 is embedded with a drain pipe, the bottom end of the drain pipe is fixedly connected with a valve, the drain pipe is communicated with the inside of the water storage tank 13, the water pump 14 and the buzzer 5 are both electrically connected with a second controller 16, the storage battery 4 is electrically connected with the water pump 14 and the buzzer 5, a wireless remote control switch is arranged in the water pump 14 and is electrically connected with the second controller 16, and the wireless remote control switch is matched with and provided with an external remote controller, so that the utility model is convenient for timely alarming and reminding personnel when the liquid levels of the box-shaped floating plate 1 and the plugging plate 2 are reached, and reduces the phenomenon that the measuring rope 102 is over-discharged, the accuracy is measured in the improvement, and be convenient for extract the sample to water automatically when measuring the liquid level, do not need personnel to carry out the sample operation alone, make things convenient for personnel to operate, satisfy the user demand.
In the utility model, one side of two L-shaped plates 100 close to each other is provided with a rotating groove, the rotating groove is internally fixed with a first bearing, both ends of a wind-up roll 101 are fixedly connected with a rotating shaft, the inner side of the inner ring of the first bearing is fixedly connected with the outer side of the corresponding rotating shaft, the right end of the rotating shaft on the right side is fixedly connected with the left end of the output shaft of a band-type brake motor 103, the inner wall of the top of a box-shaped floating plate 1 is provided with a first perforation, the inner wall of the first perforation is movably contacted with the outer side of a measuring rope 102, the inner walls of four sides of a guide sleeve 8 are respectively embedded with two balls, a guide rod 6 is positioned between the corresponding eight balls, the balls are in rolling contact with the outer sides of corresponding guide rods 6, the top of a plugging plate 2 is provided with a second perforation, the outer side of a balancing weight 7 is bonded with a sealing rubber sheet, the outer side of the sealing rubber sheet is movably contacted with the inner wall of the second perforation, the utility model is convenient for timely alarming and reminding personnel when the liquid level of the box-shaped floating plate 1 and the plugging plate 2 is reached, the phenomenon that measuring rope 102 is over-discharged is reduced, the measuring accuracy is improved, automatic water extraction and sampling are convenient to carry out when the liquid level is measured, personnel do not need to carry out sampling operation independently, the personnel operation is convenient, and the use requirement is met.
The working principle is as follows: when the device is used, the whole device is moved to the position of an observation well, then the band-type brake motor 103 is started in the forward direction, the output shaft of the band-type brake motor 103 drives the winding roller 101 to rotate to release the measuring rope 102, at the moment, under the action of gravity, the counterweight block 7 and the box-shaped floating plate 1 simultaneously move downwards, the box-shaped floating plate 1 drives the plugging plate 2 to move downwards to be contacted with the water surface, under the action of the buoyancy of the box-shaped floating plate 1 and the plugging plate 2, the box-shaped floating plate 1 and the plugging plate 2 are limited to move continuously, the counterweight block 7 which moves downwards drives the two guide sleeves 8 to respectively slide downwards on the corresponding guide rods 6, the guide sleeves 8 drive the corresponding balls to move downwards on the outer sides of the guide rods 6, the counterweight block 7 drives the limiting plate 12 to move downwards, meanwhile, the counterweight block 7 drives the water pump 14 and the water suction head 15 connected with the water pump 14 to move downwards into the water, and simultaneously the guide sleeves 8 drive the L-shaped moving rod 10 to move downwards, when the L-shaped moving rod 10 moves downwards to be in contact with the tact switch 11, the tact switch 11 is triggered to be started, the tact switch 11 controls the band-type brake motor 103 to be closed through the first controller, the tact switch 11 controls the buzzer 5 and the water pump 14 to be started through the second controller, the buzzer 5 sends out a high-pitch alarm to remind people, at the moment, the people can judge the liquid level depth through observing the scale marks on the front side of the measuring rope 102, meanwhile, the water pump 14 extracts water through the water suction head 15, the extracted water enters the water storage tank 13 through the water discharging end of the water pump 14, the purpose of automatically extracting and sampling water when the liquid level is measured is achieved, the timely alarm is conveniently given to remind people when the liquid level of the box-shaped floating plate 1 and the plugging plate 2 is reached, the phenomenon that the measuring rope 102 is excessively discharged is reduced, and the measuring accuracy is improved;
standing for several seconds, the personnel can close through outside remote switch control water pump 14 this moment, reverse start band-type brake motor 103 is followed, band-type brake motor 103's output shaft drives wind-up roll 101 and rotates and carry out the rolling to measuring rope 102, measuring rope 102 drives balancing weight 7 and upwards moves, balancing weight 7 drives two uide bushing 8 and upwards moves, left uide bushing 8 drives L shape carriage release lever 10 rebound and dabs switch 11 separation, relieve the extrusion touch state, second controller 16 control bee calling organ 5 and close and stop the warning this moment, balancing weight 7 drives limiting plate 12 upward movement when contacting with the bottom of closure plate 2, limiting plate 12 promotes closure plate 2 rebound, closure plate 2 drives box-shaped floating plate 1 upwards to shift out the observation well.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
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 (8)
1. The liquid level observation device for the hydrogeology comprises two L-shaped plates (100) which are symmetrically arranged, wherein the same winding roller (101) is rotatably arranged between the two L-shaped plates (100), the tops of the two L-shaped plates (100) are fixedly connected with the same cross rod, the liquid level observation device is characterized in that a measuring rope (102) is wound and fixed on the winding roller (101), the front side of the measuring rope (102) is provided with a scale mark, the left inner wall of the L-shaped plate (100) on the right side is fixedly connected with a band-type brake motor (103), the left end of an output shaft of the band-type brake motor (103) is fixedly connected with the right end of the winding roller (101), the bottom of the band-type brake motor (103) is fixedly and electrically connected with a first controller, a box-shaped floating plate (1) is arranged between the two L-shaped plates (100), a blocking plate (2) is fixedly connected with the bottom of the box-shaped floating plate (1), a mounting groove (3) is formed in the left inner wall of the floating plate (1), a storage battery (4) is fixedly connected to the inner wall of the left side of the mounting groove (3), a buzzer (5) is embedded on the inner wall of the top of the mounting groove (3), the top of the buzzer (5) extends to the upper side of the box-shaped floating plate (1), the top of the storage battery (4) is fixedly and electrically connected with a second controller (16), a balancing weight (7) is arranged in the box-shaped floating plate (1), the bottom of the balancing weight (7) extends to the lower side of the plugging plate (2) and is fixedly connected with a limiting plate (12), the top of the limiting plate (12) is movably contacted with the bottom of the plugging plate (2), the bottom end of the measuring rope (102) extends into the box-shaped floating plate (1) and is fixedly connected with the top of the balancing weight (7), guide mechanisms are fixedly connected to the two sides of the balancing weight (7), and are fixedly connected between the inner wall of the top of the floating plate (1) and the top of the plugging plate (2), install trigger mechanism on lieing in left guiding mechanism among two guiding mechanism, trigger mechanism and first controller and second controller (16) electric connection, aqua storage tank (13) have been seted up to the bottom of balancing weight (7), and the top right side of balancing weight (7) is inlayed and is equipped with the mechanism of drawing water, and the bottom of the mechanism of drawing water extends to the below of limiting plate (12).
2. The hydrogeological fluid level observation device of claim 1, wherein the guiding mechanism comprises two guiding sleeves (8), one side of each guiding sleeve (8) close to each other is fixedly connected with two sides of the counterweight (7), two guiding rods (6) are fixedly connected between the inner wall of the top of the box-shaped floating plate (1) and the top of the plugging plate (2), and the guiding sleeves (8) are movably sleeved on the corresponding guiding rods (6).
3. The hydrogeological fluid level observation device of claim 1, wherein the trigger mechanism comprises an L-shaped moving rod (10), the bottom end of the L-shaped moving rod (10) is fixedly connected with the top of the left guide sleeve (8), a first through hole (9) is formed in one side of the left guide rod (6), a tact switch (11) is fixedly connected to the inner wall of the bottom of the first through hole (9), the right end of the L-shaped moving rod (10) extends into the first through hole (9), the L-shaped moving rod (10) is matched with the tact switch (11), and the tact switch (11) is electrically connected with the first controller and the second controller (16).
4. The hydrogeology liquid level observation device of claim 1, wherein the pumping mechanism comprises a water pump (14), the top right side of the counterweight (7) is provided with a mounting groove, the water pump (14) is fixedly mounted on the bottom inner wall of the mounting groove, the pumping end of the water pump (14) extends to the lower part of the limiting plate (12) and is fixedly connected with a water suction head (15), the water outlet end of the water pump (14) extends into the water storage tank (13), the bottom of the limiting plate (12) is embedded with a drain pipe, the bottom end of the drain pipe is fixedly connected with a valve, the drain pipe is communicated with the inside of the water storage tank (13), the water pump (14) and the buzzer (5) are both electrically connected with the second controller (16), the storage battery (4) is electrically connected with the water pump (14) and the buzzer (5), the water pump (14) is internally provided with a wireless remote control switch, and the wireless remote control switch is electrically connected with the second controller (16), the wireless remote control switch is matched with an external remote controller.
5. The hydrogeological fluid level observation device of claim 1, wherein the two L-shaped plates (100) are provided with a rotating groove on one side adjacent to each other, a first bearing is fixedly sleeved in the rotating groove, rotating shafts are fixedly connected to both ends of the wind-up roll (101), the inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding rotating shaft, and the right end of the rotating shaft on the right side is fixedly connected to the left end of the output shaft of the band-type brake motor (103).
6. The hydrogeological fluid level observation device as defined in claim 1, wherein the box-shaped floating plate (1) has a first perforation formed on the inner wall of the top thereof, and the inner wall of the first perforation is in movable contact with the outer side of the measuring rope (102).
7. The hydrogeological fluid level observation apparatus according to claim 2, wherein two balls are fitted on the inner walls of the four sides of the guide sleeve (8), the guide rods (6) are located between the eight corresponding balls, and the balls are in rolling contact with the outer sides of the corresponding guide rods (6).
8. The hydrogeology liquid level observation device of claim 1, characterized in that, the second perforation has been seted up at the top of shutoff board (2), and the outside bonding cladding of balancing weight (7) has the rubber seal, and the outside and the second perforation inner wall swing joint of rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220156689.7U CN216593683U (en) | 2022-01-20 | 2022-01-20 | Liquid level observation device for hydrogeology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220156689.7U CN216593683U (en) | 2022-01-20 | 2022-01-20 | Liquid level observation device for hydrogeology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216593683U true CN216593683U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220156689.7U Expired - Fee Related CN216593683U (en) | 2022-01-20 | 2022-01-20 | Liquid level observation device for hydrogeology |
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| Country | Link |
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| CN (1) | CN216593683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659619A (en) * | 2023-07-25 | 2023-08-29 | 河北省保定水文勘测研究中心 | Underground water level observation well monitoring facilities |
-
2022
- 2022-01-20 CN CN202220156689.7U patent/CN216593683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659619A (en) * | 2023-07-25 | 2023-08-29 | 河北省保定水文勘测研究中心 | Underground water level observation well monitoring facilities |
| CN116659619B (en) * | 2023-07-25 | 2023-10-03 | 河北省保定水文勘测研究中心 | Underground water level observation well monitoring facilities |
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