CN111307251A - Deep well water level detector - Google Patents
Deep well water level detector Download PDFInfo
- Publication number
- CN111307251A CN111307251A CN201911202955.4A CN201911202955A CN111307251A CN 111307251 A CN111307251 A CN 111307251A CN 201911202955 A CN201911202955 A CN 201911202955A CN 111307251 A CN111307251 A CN 111307251A
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- water level
- plate
- deep well
- connecting plate
- well water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
Abstract
The invention belongs to the technical field of detectors, and particularly relates to a deep well water level detector which comprises an ultrasonic water level detector, a connecting plate, an adjusting plate and an ultrasonic transmitting head, wherein the adjusting plate is arranged below the connecting plate; through the telescopic connecting rod of connecting plate surface fixation, the well head position in the deep well is placed through telescopic connecting rod to the connecting plate of being convenient for, and when telescopic connecting rod carried out length adjustment simultaneously, pull out the second magnetic stripe outward, second magnetic stripe and first magnetic stripe separation this moment, the inserted bar removed in sheathed tube inside simultaneously, and the ultrasonic emission head of connecting plate below bonding on the adjusting plate surface of being convenient for simultaneously was surveyed the liquid level in the deep well, and telescopic connecting rod is convenient for the connecting plate and is placed the top at different diameter well heads.
Description
Technical Field
The invention belongs to the technical field of detectors, and particularly relates to a deep well water level detector.
Background
The deep well water level detector is a device for detecting the water level of a deep well by sending ultrasonic waves, the traditional deep well water level detector has the advantages that the levelness of an ultrasonic transmitting head is not convenient to observe when the traditional deep well water level detector is used, time is consumed for adjusting the levelness of the ultrasonic transmitting head, and meanwhile the ultrasonic transmitting head is not convenient to install above the deep well.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a deep well water level detector which has the characteristics that an ultrasonic transmitting head is convenient to adjust levelness, and meanwhile, the ultrasonic transmitting head is conveniently and rapidly installed above a deep well.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a deep well water level detection instrument, includes supersound water level detection instrument, connecting plate, regulating plate and supersound transmission head, the below at the connecting plate is installed to the regulating plate, the lower surface at the regulating plate is fixed to supersound transmission head, supersound water level detection instrument and supersound transmission head electric connection, the fixed surface of connecting plate has telescopic connecting rod, telescopic connecting rod includes sleeve pipe, inserted bar, first magnetic stripe and second magnetic stripe, the sleeve pipe cup joints in the outside of inserted bar, the tip at the inserted bar is fixed to the second magnetic stripe, first magnetic stripe is fixed at sheathed tube tip, the screw hole internal thread has been closed on the connecting plate surface is seted up, the one end of screw rod is fixed with the runner, adjusting part is installed to the other end of screw rod, just adjusting part and regulating plate fixed connection, the central point of regulating plate upper surface puts the department and.
According to the preferable technical scheme of the deep well water level detector, the adjusting assembly comprises a rotating ball, a bearing, an outer sleeve ring and a support ring, the support ring is installed inside the rotating ball, the lower end of the screw is clamped inside the support ring, the outer sleeve ring is welded on the surface of the adjusting plate, and the bearing is sleeved outside the rotating ball and is connected with the outer sleeve ring in a threaded screwing mode.
According to the preferable technical scheme of the deep well water level detector, the connecting plate and the adjusting plate are of triangular plate structures, and the number of the screw rods and the number of the ultrasonic transmitting heads are three.
According to the preferable technical scheme of the deep well water level detector, the sleeves are plate tubes, the inserted rods are of plate-shaped structures, the number of the sleeves is three, and the three sleeves are mutually sleeved.
According to the preferable technical scheme of the deep well water level detector, the first magnetic strip is fixed at the end part of the outermost sleeve, and rubber rings are respectively arranged in grooves formed in the inner surface of one end of the sleeve and the outer surface of one end of the inserted rod.
According to the preferable technical scheme of the deep well water level detector, the first magnetic strip and the second magnetic strip are equal in size.
As the preferable technical scheme of the deep well water level detector, the number of the telescopic connecting rods is three, and the three telescopic connecting rods are positioned at three corners of the connecting plate.
According to the preferable technical scheme of the deep well water level detector, the surface of the leveling disc is provided with scale marks, and the leveling disc is filled with water and provided with bubbles.
Compared with the prior art, the invention has the beneficial effects that:
1. the telescopic connecting rod fixed on the surface of the connecting plate is convenient for the connecting plate to be placed at the well mouth position of the deep well through the telescopic connecting rod, when the length of the telescopic connecting rod is adjusted, the second magnetic stripe is pulled outwards, the second magnetic stripe is separated from the first magnetic stripe at the moment, the inserted rod moves in the sleeve, meanwhile, the ultrasonic transmitting head bonded on the surface of the adjusting plate below the connecting plate is convenient for detecting the liquid level in the deep well, the telescopic connecting rod is convenient for the connecting plate to be placed above the well mouths with different diameters, the levelness of the adjusting plate is convenient to detect through the levelling disc bonded at the central position of the upper surface of the adjusting plate, the ultrasonic transmitting head bonded on the lower surface of the adjusting plate is convenient for vertically downwards detecting the liquid level of the deep well, the accuracy of the liquid level detection of the deep well is increased, and meanwhile, the adjusting plate can adjust the angle under the connecting plate, and the precision of deep well liquid level detection is increased.
2. Offer the screw that the screw closed soon through the connecting plate surface, rotate the fixed runner in screw upper end simultaneously, the screw rod of being convenient for removes in the screw, the regulating plate of being convenient for carries out angle modulation under the connecting plate, simultaneously by changeing the ball, a bearing, the adjusting part that outer lantern ring and support ring constitute, the outer lantern ring welding is at the upper surface of regulating plate simultaneously, the bearing cup joints and closes soon with outer lantern ring in the outside of changeing the ball and be connected through the screw thread, the lower extreme of screw rod inserts in the support ring and rotates in changeing the ball and connect simultaneously, the screw rod of being convenient for carries out angle modulation around the adjusting part of tip installation, the regulating plate that has improved under the connecting plate installation carries out the convenience that.
Drawings
The accompanying drawings, which 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 principles of 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 structural view of a connecting plate, an adjusting plate and an ultrasonic transmitter head in the present invention;
FIG. 3 is a schematic view of the screw, runner and adjustment assembly of the present invention;
FIG. 4 is a schematic view of an adjustment assembly according to the present invention;
FIG. 5 is a schematic view of a telescopic link according to the present invention;
FIG. 6 is a schematic view of a leveling disk configuration of the present invention;
in the figure: 1. an ultrasonic water level detector; 2. a connecting plate; 3. an adjusting plate; 4. an ultrasonic transmitting head; 5. a telescopic connecting rod; 6. a screw; 7. a rotating wheel; 8. an adjustment assembly; 9. rotating the ball; 10. a bearing; 11. an outer collar; 12. a support ring; 13. a sleeve; 14. inserting a rod; 15. a first magnetic stripe; 16. a second magnetic stripe; 17. a rubber ring; 18. a leveling disk; 19. scale lines; 20. air bubbles.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-6, the present invention provides a technical solution: a deep well water level detector comprises an ultrasonic water level detector 1, a connecting plate 2, an adjusting plate 3 and an ultrasonic transmitting head 4, wherein the adjusting plate 3 is installed below the connecting plate 2, the ultrasonic transmitting head 4 is fixed on the lower surface of the adjusting plate 3, the ultrasonic water level detector 1 is electrically connected with the ultrasonic transmitting head 4, a telescopic connecting rod 5 is fixed on the surface of the connecting plate 2, the telescopic connecting rod 5 comprises a sleeve 13, an inserted bar 14, a first magnetic strip 15 and a second magnetic strip 16, the sleeve 13 is sleeved outside the inserted bar 14, the second magnetic strip 16 is fixed at the end part of the inserted bar 14, the first magnetic strip 15 is fixed at the end part of the sleeve 13, a screw 6 is screwed in a screw hole formed in the surface of the connecting plate 2, a rotating wheel 7 is fixed at one end of the screw 6, and, and the adjusting component 8 is fixedly connected with the adjusting plate 3, and a leveling disc 18 is arranged at the central position of the upper surface of the adjusting plate 3.
In the embodiment, the telescopic connecting rod 5 fixed on the surface of the connecting plate 2 is used for facilitating the connecting plate 2 to be placed at the wellhead position of a deep well through the telescopic connecting rod 5, when the telescopic connecting rod 5 is used for adjusting the length, the second magnetic stripe 16 is pulled outwards, the second magnetic stripe 16 is separated from the first magnetic stripe 15 at the moment, the inserted link 14 moves in the sleeve 13, the ultrasonic emission head 4 bonded on the surface of the adjusting plate 3 below the connecting plate 2 is used for detecting the liquid level in the deep well, the telescopic connecting rod 5 is used for facilitating the connecting plate 2 to be placed above wellheads with different diameters, the leveling disc 18 bonded at the central position of the upper surface of the adjusting plate 3 is used for detecting the levelness of the adjusting plate 3 through the leveling disc 18, the ultrasonic emission head 4 bonded on the lower surface of the adjusting plate 3 is used for detecting the liquid level of the deep well vertically downwards, and the accuracy of, simultaneously, the adjusting plate 3 is connected with the connecting plate 2 through the screw 6, the rotating wheel 7 and the adjusting assembly 8, so that the adjusting plate 3 can adjust the angle below the connecting plate 2, and the precision of deep well liquid level detection is increased.
Specifically, the adjusting assembly 8 includes a rotating ball 9, a bearing 10, an outer collar 11 and a support ring 12, the support ring 12 is installed inside the rotating ball 9, the lower end of the screw 6 is clamped inside the support ring 12, the outer collar 11 is welded on the surface of the adjusting plate 3, and the bearing 10 is sleeved outside the rotating ball 9 and is screwed to the outer collar 11 through threads.
In this embodiment, set up screw rod 6 that the screw closed soon through connecting plate 2 surface, rotate the fixed runner 7 in screw rod 6 upper end simultaneously, be convenient for screw rod 6 removes in the screw, be convenient for regulating plate 3 carries out angle modulation under connecting plate 2, by changeing ball 9 simultaneously, bearing 10, the adjusting part 8 that outer lantern ring 11 and support ring 12 constitute, the upper surface at regulating plate 3 is welded to outer lantern ring 11 simultaneously, bearing 10 cup joints the outside of changeing ball 9 and closes soon with outer lantern ring 11 through the screw thread and is connected, the lower extreme of screw rod 6 inserts in support ring 12 and rotates in changeing ball 9 and connect simultaneously, be convenient for screw rod 6 carries out angle modulation round the adjusting part 8 of tip installation, the convenience that regulating plate 3 installed under connecting plate 2 carries out the levelness regulation has been improved.
Specifically, the connecting plate 2 and the adjusting plate 3 are both triangular plate-shaped structures, and the screw 6 and the ultrasonic transmitting head 4 are three.
In this embodiment, through connecting plate 2 and regulating plate 3 that are triangle-shaped platelike structure, screw rod 6 and supersound transmission head 4 all are provided with three simultaneously, have increased the precision of water level detection.
Specifically, the sleeves 13 are plate tubes, the insert rods 14 are plate-shaped structures, the number of the sleeves 13 is three, and the three sleeves 13 are sleeved with each other.
In this embodiment, be provided with threely through sleeve pipe 13 altogether, three sleeve pipe 13 cup joints each other simultaneously, and the flexible connecting rod 5 of being convenient for is flexible.
Specifically, the first magnetic stripe 15 is fixed at the end of the outermost sleeve 13, and rubber rings 17 are installed in grooves formed in the inner surface of one end of the sleeve 13 and the outer surface of one end of the insertion rod 14.
In this embodiment, fix the tip at outermost sleeve pipe 13 through first magnetic stripe 15, the inslot all is installed to the internal surface of sleeve pipe 13 one end and the surface of inserted bar 14 one end and is installed rubber ring 17, has improved the flexible stability of telescopic link 5. .
Specifically, the first magnetic stripe 15 and the second magnetic stripe 16 are equal in size.
In this embodiment, the size of the first magnetic strip 15 is equal to that of the second magnetic strip 16, so that the telescopic link 5 can be conveniently retracted and fixed after being extended.
Specifically, the number of the telescopic links 5 is three, and the three telescopic links 5 are located at three corners of the connecting plate 2.
In this embodiment, through being provided with three telescopic link 5, three telescopic link 5 is located the three corner of connecting plate 2 simultaneously, and the connecting plate 2 of being convenient for is placed in deep well mouth top.
Specifically, the surface of the leveling disc 18 is provided with scale marks 19, and the leveling disc 18 is filled with water and provided with air bubbles 20.
In this embodiment, the leveling disc 18 with the scale marks 19 is provided on the surface, and the leveling disc 18 is filled with water to form the air bubbles 20, so that the levelness of the adjusting plate 3 can be observed conveniently.
The working principle and the using process of the invention are as follows: when the device is used, the second magnetic strip 16 is pulled outwards, the second magnetic strip 16 drives the insert rod 14 to move in the sleeve 13, meanwhile, the rubber ring 17 arranged in the groove on the outer surface of the insert rod 14 slides on the inner surface of the sleeve 13, the connecting plate 2 is placed at the upper end of a wellhead, the angle of the adjusting plate 3 is adjusted according to the position of the air bubble 20 in the leveling disc 18, the rotating wheel 7 fixed at the upper end of the screw rod 6 is rotated, the screw rod 6 moves in a screw hole formed in the surface of the connecting plate 2, meanwhile, the lower end of the screw rod 6 rotates in the supporting ring 12, meanwhile, the rotating ball 9 deflects in the bearing 10, the adjusting plate 3 is adjusted in angle, and the air bubble 20 is located at the center position of the leveling disc.
Example two
Referring to fig. 1-6, the present invention provides a technical solution: a deep well water level detector comprises an ultrasonic water level detector 1, a connecting plate 2, an adjusting plate 3 and an ultrasonic transmitting head 4, wherein the adjusting plate 3 is installed below the connecting plate 2, the ultrasonic transmitting head 4 is fixed on the lower surface of the adjusting plate 3, the ultrasonic water level detector 1 is electrically connected with the ultrasonic transmitting head 4, a telescopic connecting rod 5 is fixed on the surface of the connecting plate 2, the telescopic connecting rod 5 comprises a sleeve 13, an inserted bar 14, a first magnetic strip 15 and a second magnetic strip 16, the sleeve 13 is sleeved outside the inserted bar 14, the second magnetic strip 16 is fixed at the end part of the inserted bar 14, the first magnetic strip 15 is fixed at the end part of the sleeve 13, a screw 6 is screwed in a screw hole formed in the surface of the connecting plate 2, a rotating wheel 7 is fixed at one end of the screw 6, and, and the adjusting component 8 is fixedly connected with the adjusting plate 3, and a leveling disc 18 is arranged at the central position of the upper surface of the adjusting plate 3.
In the embodiment, the telescopic connecting rod 5 fixed on the surface of the connecting plate 2 is used for facilitating the connecting plate 2 to be placed at the wellhead position of a deep well through the telescopic connecting rod 5, when the telescopic connecting rod 5 is used for adjusting the length, the second magnetic stripe 16 is pulled outwards, the second magnetic stripe 16 is separated from the first magnetic stripe 15 at the moment, the inserted link 14 moves in the sleeve 13, the ultrasonic emission head 4 bonded on the surface of the adjusting plate 3 below the connecting plate 2 is used for detecting the liquid level in the deep well, the telescopic connecting rod 5 is used for facilitating the connecting plate 2 to be placed above wellheads with different diameters, the leveling disc 18 bonded at the central position of the upper surface of the adjusting plate 3 is used for detecting the levelness of the adjusting plate 3 through the leveling disc 18, the ultrasonic emission head 4 bonded on the lower surface of the adjusting plate 3 is used for detecting the liquid level of the deep well vertically downwards, and the accuracy of, simultaneously, the adjusting plate 3 is connected with the connecting plate 2 through the screw 6, the rotating wheel 7 and the adjusting assembly 8, so that the adjusting plate 3 can adjust the angle below the connecting plate 2, and the precision of deep well liquid level detection is increased.
Specifically, the adjusting assembly 8 includes a rotating ball 9, a bearing 10, an outer collar 11 and a support ring 12, the support ring 12 is installed inside the rotating ball 9, the lower end of the screw 6 is clamped inside the support ring 12, the outer collar 11 is welded on the surface of the adjusting plate 3, and the bearing 10 is sleeved outside the rotating ball 9 and is screwed to the outer collar 11 through threads.
In this embodiment, set up screw rod 6 that the screw closed soon through connecting plate 2 surface, rotate the fixed runner 7 in screw rod 6 upper end simultaneously, be convenient for screw rod 6 removes in the screw, be convenient for regulating plate 3 carries out angle modulation under connecting plate 2, by changeing ball 9 simultaneously, bearing 10, the adjusting part 8 that outer lantern ring 11 and support ring 12 constitute, the upper surface at regulating plate 3 is welded to outer lantern ring 11 simultaneously, bearing 10 cup joints the outside of changeing ball 9 and closes soon with outer lantern ring 11 through the screw thread and is connected, the lower extreme of screw rod 6 inserts in support ring 12 and rotates in changeing ball 9 and connect simultaneously, be convenient for screw rod 6 carries out angle modulation round the adjusting part 8 of tip installation, the convenience that regulating plate 3 installed under connecting plate 2 carries out the levelness regulation has been improved.
Specifically, the connecting plate 2 and the adjusting plate 3 are both triangular plate-shaped structures, and the screw 6 and the ultrasonic transmitting head 4 are three.
In this embodiment, through connecting plate 2 and regulating plate 3 that are triangle-shaped platelike structure, screw rod 6 and supersound transmission head 4 all are provided with three simultaneously, have increased the precision of water level detection.
Specifically, the sleeve 13 is a circular tube, the inserted bar 14 is a cylindrical structure, the number of the sleeves 13 is three, and the three sleeves 13 are mutually sleeved.
In this embodiment, be provided with threely through sleeve pipe 13 altogether, three sleeve pipe 13 cup joints each other simultaneously, and the flexible connecting rod 5 of being convenient for is flexible.
Specifically, the first magnetic stripe 15 is fixed at the end of the outermost sleeve 13, and rubber rings 17 are installed in grooves formed in the inner surface of one end of the sleeve 13 and the outer surface of one end of the insertion rod 14.
In this embodiment, fix the tip at outermost sleeve pipe 13 through first magnetic stripe 15, the inslot all is installed to the internal surface of sleeve pipe 13 one end and the surface of inserted bar 14 one end and is installed rubber ring 17, has improved the flexible stability of telescopic link 5. .
Specifically, the first magnetic stripe 15 and the second magnetic stripe 16 are equal in size.
In this embodiment, the size of the first magnetic strip 15 is equal to that of the second magnetic strip 16, so that the telescopic link 5 can be conveniently retracted and fixed after being extended.
Specifically, the number of the telescopic links 5 is three, and the three telescopic links 5 are located at three corners of the connecting plate 2.
In this embodiment, through being provided with three telescopic link 5, three telescopic link 5 is located the three corner of connecting plate 2 simultaneously, and the connecting plate 2 of being convenient for is placed in deep well mouth top.
Specifically, the surface of the leveling disc 18 is provided with scale marks 19, and the leveling disc 18 is filled with water and provided with air bubbles 20.
In this embodiment, the leveling disc 18 with the scale marks 19 is provided on the surface, and the leveling disc 18 is filled with water to form the air bubbles 20, so that the levelness of the adjusting plate 3 can be observed conveniently.
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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (8)
1. A deep well water level detector is characterized in that: including supersound water level detection instrument (1), connecting plate (2), regulating plate (3) and supersound transmission head (4), the below at connecting plate (2) is installed in regulating plate (3), the lower surface at regulating plate (3) is fixed in supersound transmission head (4), supersound water level detection instrument (1) and supersound transmission head (4) electric connection, the fixed surface of connecting plate (2) has telescopic link (5), telescopic link (5) are including sleeve pipe (13), inserted bar (14), first magnetic stripe (15) and second magnetic stripe (16), sleeve pipe (13) cup joint the outside at inserted bar (14), the tip at inserted bar (14) is fixed in second magnetic stripe (16), the tip at sleeve pipe (13) is fixed in first magnetic stripe (15), screw hole internal screw thread (6) have been seted up on connecting plate (2) surface, the one end of screw rod (6) is fixed with runner (7), adjusting part (8) is installed to the other end of screw rod (6), just adjusting part (8) and regulating plate (3) fixed connection, level disc (18) are installed to the central point department of putting of regulating plate (3) upper surface.
2. The deep well water level probe according to claim 1, wherein: the adjusting assembly (8) comprises a rotating ball (9), a bearing (10), an outer sleeve ring (11) and a support ring (12), the support ring (12) is installed inside the rotating ball (9), the lower end of the screw rod (6) is clamped inside the support ring (12), the outer sleeve ring (11) is welded on the surface of the adjusting plate (3), and the bearing (10) is sleeved outside the rotating ball (9) and connected with the outer sleeve ring (11) in a threaded screwing mode.
3. The deep well water level probe according to claim 1, wherein: the connecting plate (2) and the adjusting plate (3) are of triangular plate structures, and the screw rods (6) and the ultrasonic transmitting heads (4) are all three.
4. The deep well water level probe according to claim 1, wherein: the sleeve pipe (13) is a plate pipe, the inserted bar (14) is of a plate-shaped structure, the number of the sleeve pipes (13) is three, and the three sleeve pipes (13) are mutually sleeved.
5. The deep well water level probe according to claim 1, wherein: the first magnetic strip (15) is fixed at the end part of the outermost sleeve (13), and rubber rings (17) are mounted in grooves formed in the inner surface of one end of the sleeve (13) and the outer surface of one end of the inserted rod (14).
6. The deep well water level probe according to claim 1, wherein: the first magnetic strip (15) and the second magnetic strip (16) are equal in size.
7. The deep well water level probe according to claim 1, wherein: the number of the telescopic connecting rods (5) is three, and the three telescopic connecting rods (5) are located at three corners of the connecting plate (2).
8. The deep well water level probe according to claim 1, wherein: the surface of the leveling disc (18) is provided with scale marks (19), and air bubbles (20) are filled with water in the leveling disc (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202955.4A CN111307251B (en) | 2019-11-29 | 2019-11-29 | Deep well water level detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202955.4A CN111307251B (en) | 2019-11-29 | 2019-11-29 | Deep well water level detector |
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| CN111307251A true CN111307251A (en) | 2020-06-19 |
| CN111307251B CN111307251B (en) | 2021-06-22 |
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| CN201911202955.4A Active CN111307251B (en) | 2019-11-29 | 2019-11-29 | Deep well water level detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113624300A (en) * | 2021-07-21 | 2021-11-09 | 中航勘察设计研究院有限公司 | Water level measuring device and measuring method for observation well |
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| Publication number | Publication date |
|---|---|
| CN111307251B (en) | 2021-06-22 |
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