CN215726216U - Portable field water level measuring instrument - Google Patents
Portable field water level measuring instrument Download PDFInfo
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- CN215726216U CN215726216U CN202121927595.7U CN202121927595U CN215726216U CN 215726216 U CN215726216 U CN 215726216U CN 202121927595 U CN202121927595 U CN 202121927595U CN 215726216 U CN215726216 U CN 215726216U
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- plumb bob
- plate body
- cable
- water level
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a portable open-air water level measuring apparatu, have the cable of taking the scale, pointer resistance tester, earth connection copper presss from both sides, the plumb bob, the damping device who produces the resistance effect to the plumb bob after the bottom of plumb bob gets into the water, damping device has the spherical segment that rubber materials made, the casing that plastics material made, the casing is located the top of spherical segment, the plumb bob has insulating rubber tube, wrap up the plummet in insulating rubber tube, the bottom surface of spherical segment up and with the bottom fixed connection of plumb bob, the casing has the first plate body of the convex curved surface shape of upwards bulging, the annular second plate body of the concave curved surface shape of downwards bulging, the lower extreme annular edge of first plate body and the inboard annular edge fixed connection of second plate body, the plumb bob vertically passes the central zone of first plate body and with first plate body fixed connection. The utility model can enable an operator to know in advance that the metal sheet used as the probe is about to enter water, thereby controlling the putting speed of the cable in the well, and further improving the measurement precision of the water level value and the measurement work efficiency.
Description
Technical Field
The utility model relates to a water level measuring instrument, in particular to a portable field water level measuring instrument.
Background
Water level values need to be measured for (hydrological) observation holes of geological, mine, hydrological and other projects, geological drilling holes, water wells, reservoir dams, rivers, lakes and seas. Some existing water level measuring instruments are complex in structure, inconvenient to carry and low in measuring accuracy. For example, there is a portable anti-jamming manual-automatic water level tester having a wire hammer, a wire spool, a wire, a stand, a wire distributor, a wire count collector, etc. The plumb bob comprises a plastic hose and iron powder, the front end of the measuring line is fixedly connected with the plastic hose, and the front end of the measuring line is provided with two independent bare wires (metal sheets). The drawback of this kind of structure is that the cable moves down in the well along with the plumb bob, drops into the well as to transfer the water level in the front in the well as the sheetmetal of probe, and the operator does not know the sheetmetal of probe and is about to go into water, when the cable drops into speed in the well too big, the sheetmetal can be in the position below the surface of water to influence (reduce) the measurement accuracy of water level value.
The above techniques enable an operator to know in advance that the metal sheet serving as the probe is about to enter water, so as to control the putting speed of the cable in the well and improve the measurement accuracy of the water level value, and no specific guidance scheme is given.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a portable field water level measuring instrument, which can enable an operator to know in advance that a metal sheet used as a probe is about to enter water, thereby controlling the putting speed of a cable in a well and further improving the measuring precision of a water level value.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a portable field water level measuring instrument is composed of a cable with scales (coated wire), a pointer-type resistance tester, a copper clip for grounding wire, and a plumb bob, wherein the pointer-type resistance tester can be a pointer-type multimeter with resistance level, one end of the cable is connected to the positive pole of the pointer-type resistance tester, the other end of the cable is connected to the plumb bob, the cable has a metal sheet as a probe and connected to the plumb bob, and the negative pole of the pointer-type resistance tester is connected to ground via a wire and the copper clip for grounding wire The plummet wrapped in the insulating rubber tube has the advantages that the bottom surface of the ball segment faces upwards and is fixedly connected with the bottom end of the plumb bob (can be in insertion connection), the shell is provided with a convex curved surface-shaped first plate body which bulges upwards and a concave curved surface-shaped annular second plate body which bulges downwards, the annular edge of the lower end of the first plate body is fixedly connected with the annular edge of the inner side of the second plate body (and is in smooth transition), and the outer circumferential surface of the plumb bob longitudinally penetrates through the central area of the first plate body and is fixedly connected with the first plate body. The first plate body has a first cavity (cavity, i.e., cavity), and the second plate body has a second cavity.
In the above technical solution, a preferable technical solution may be: preferably, a gap is reserved between the ball segment and the shell.
When the device works, the cable moves downwards in the well along with the hammer, when a metal sheet of the probe is thrown into the well and is put down to the water surface, the ball segment and the shell are under the buoyancy effect of water in the well, the downward moving speed of the hammer becomes slow (the cable is changed from a tightened state to a loosened state), an operator (an operator) can know that the hammer enters the water, so that the metal sheet of the probe is known to enter the water in advance, the throwing speed of the cable in the well becomes slow, the gap and the second cavity are filled with the water, the hammer continues to move downwards by virtue of the dead weight, the water in the gap and the acting force of the water in the second cavity, when the metal sheet is positioned at the water surface position, the display pointer just swings, the metal sheet of the probe is indicated to just enter the water, and the scale value of the read cable is the water level value, so that the measurement precision of the water level value is improved. Meanwhile, the gap, the second cavity and the first cavity can stabilize water (water flows inevitably due to water hammer), the flow speed of water at the damping device is reduced, and the water level value measurement precision is improved.
In conclusion, the utility model can enable an operator to know in advance that the metal sheet serving as the probe is about to enter water, thereby controlling the putting speed of the cable in the well and further improving the measurement precision of the water level value. Through tests, compared with the prior similar technology, the utility model improves the measurement precision by more than 10 percent and the measurement work efficiency by more than 12 percent.
Drawings
Fig. 1 is a schematic structural view (perspective view) of the present invention.
Fig. 2 is a diagram showing the working state of the pointer of the resistance tester of the present invention. In fig. 2, (a) shows the pointer at the left end, indicating that the metal piece 101 as a probe is not immersed in water; in fig. 2, (b) shows the pointer at the right end, indicating that the metal piece 101 as a probe has entered water; in fig. 2 (c), the pointer is shown to swing just, which means that the metal sheet 101 as a probe just enters water, the scale value of the cable is read, and the length of the cable is the buried depth of the water level (the distance from the water level to the wellhead).
Fig. 3 is a schematic structural view of the connection of the plumb bob and the damping device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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 1: as shown in figures 1, 2 and 3, the portable field water level measuring instrument provided by the utility model comprises a cable 1 with scales, a pointer type resistance tester 2, a grounding wire copper clamp 3, a plumb bob 4, a damping device 5 and a bobbin 1', wherein the bottom of the plumb bob 4 enters water and then generates resistance action on the plumb bob. The pointer resistance tester 2 may be a pointer multimeter (using resistance steps). The cable 1 may be a coated wire. The covered wire is used for erecting a telephone line under the field operation condition of the army, the inside of the wire is of a copper-clad steel structure, the covered wire has the characteristics of high strength and good conductivity, an insulating sheath outside the wire can resist severe cold, and the using performance of the covered wire as a measuring lead is superior to that of other leads. One end of the cable 1 is connected with the anode of the pointer type resistance tester 2, the other end of the cable 1 is connected with the plumb bob 4, the cable is provided with a metal sheet 101 (or a metal wire) which is exposed and electrically connected with the cable and used as a probe at the connection part with the plumb bob, and the cathode of the pointer type resistance tester 2 is connected into the ground through the electric wire 3' and the grounding wire copper clamp 3. The damping device 5 is provided with a ball segment 501 made of rubber materials and an annular shell 502 made of plastic materials, the shell 502 is located above the ball segment 501, and the plumb bob 4 is provided with an insulating rubber tube 401 and a plumb bob 402 wrapped in the insulating rubber tube 401. The plumb bob 4 and the plummet 402 have a cylindrical shape. The plumb bob 4 can also be composed of a plastic hose and a lead weight wrapped in the plastic hose. The segment 501, the housing 502, and the insulating rubber tube 401 (and the plastic hose) are all insulators. The bottom surface of the segment 501 faces upward and is fixedly connected (may be in a plug-in connection) with the bottom end of the plumb bob 4, the housing 502 has a convex curved surface-shaped first plate 5021 bulging upward and a concave curved surface-shaped annular second plate 5022 bulging downward, the lower annular edge of the first plate 5021 is fixedly connected (and smoothly transited) with the annular edge of the inner side of the second plate 5022, and the (outer circumferential surface) of the plumb bob 4 longitudinally passes through the central area of the first plate 5021 and is fixedly connected with the first plate 5021. A gap 505 is left between the segment 501 and the housing 502. The first plate 5021 has a first cavity 504 (cavity), and the second plate 5022 has a second cavity 503.
When the device works, a cable moves downwards in a well along with a hammer, when a metal sheet of a probe is thrown into the well and is put down to a water surface, the ball gap and the shell are under the buoyancy effect of water in the well, the downward moving speed of the hammer becomes slow (the cable is changed from a tight state to a loose state), an operator (an operator) can know that the hammer enters the water, so that the metal sheet of the probe is known to enter the water in advance, the throwing speed of the cable in the well becomes slow, the gap 505 and the second cavity 503 are filled with the water, the hammer continues to move downwards by virtue of the dead weight, the water in the gap 505 and the acting force of the water in the second cavity 503, when the metal sheet is positioned at the water surface position, the display pointer just swings, the fact that the metal sheet 101 of the probe just enters the water, and the scale value of the read cable is the water level value, so that the measurement precision of the water level value is improved. Meanwhile, the gap 505, the second cavity 503 and the first cavity 504 can stabilize water (water flow is inevitably caused by water hammer), and the flow rate of water at the damping device 5 is reduced to be more stable, so that the measurement accuracy of the water level value is improved.
The utility model mainly supplies power through the pointer type resistance tester and is used as a conductor in a large scale. Gradually releasing a measuring end (serving as a metal sheet of a probe) into a water body, wherein when the metal sheet is not contacted with water, the whole measuring loop is in an open circuit state, the pointer type resistance tester is embodied as a resistance maximum value, and a pointer is not moved; when the metal sheet contacts the water surface, the whole measuring loop is in a closed circuit state, the pointer type resistance tester does not indicate the maximum value of the resistance any more, and the pointer can swing greatly compared with the closed circuit state. Based on the phenomenon, the water surface position is judged, and the scale on the cable is read, namely the water level value.
The operation method of the utility model comprises the following steps: 1) the negative pole of the pointer type resistance tester 2 is connected to the ground through the wire 3' and the grounding wire copper clamp 3. 2) One end of the cable 1 is connected with the anode of the pointer type resistance tester 2. 3) And (3) lowering the cable (measuring rope) at the measuring end (one end of the metal sheet) until the pointer of the pointer type resistance tester swings and the indicator light amount (or the loudspeaker makes a sound), and stopping lowering the cable (measuring rope). 4) And (4) reading the scale value of the cable, wherein the length of the lowered cable is the buried depth of the well water level (the distance from the well water level to the well mouth).
The utility model has the characteristics that: 1) and the cost is low: the main materials of the device are common coated wires and a pointer type resistance tester (water inlet indicator), and the cost is low. 2) And wire clamping is not required: the cable (cable) is thin, so that the cable is not easy to clamp, and the small-caliber well and the well with the cable and the messy rope in the well can be measured. 3) And the measuring speed is high: the metal sheet used as the probe is put into the well and put down to the water level to obtain the water level data. 4) And the measurement precision is high: the pointer type resistance tester has sensitive response, obvious indication and measurement precision less than 10 mm. 5) The small and exquisite portable: the equipment volume is less, only is notebook computer size after accomodating, can put into knapsack, handbag in convenient to carry. 6) And the weight is light: the water level value of 50 meters is measured, the whole set of equipment is 1.5kg, the water level value of 100 meters is measured, and the hand-held device does not feel tired for a long time.
The utility model is suitable for the hydrological observation hole, geological drilling hole, water well, reservoir dam, river, lake and sea water level of geological, mine, hydrological and other projects to directly measure the water level (buried depth) of the water well and other environmental water level measurements, and specifically comprises the following steps: hydrogeology: measuring the water levels of an underground water monitoring well, a hydrogeological mapping water level survey well and a pumping test well; basic engineering: monitoring the water level of the dewatering well and measuring the water level of a pile hole; thirdly, hydraulic engineering: manually inspecting water level measurement through a dam body infiltration line observation hole; water supply engineering: and (4) measuring the dynamic water level of the well for auxiliary determination.
In summary, the above embodiments of the present invention enable an operator to know in advance that the metal sheet used as the probe is about to enter water, so as to control the putting speed of the cable in the well, thereby improving the measurement accuracy of the water level value. Through tests, compared with the prior similar technology, the utility model improves the measurement precision by more than 10 percent and the measurement work efficiency by more than 12 percent.
Claims (2)
1. A portable field water level measuring instrument is provided with a cable (1) with scales, a pointer type resistance tester (2), a grounding wire copper clamp (3) and a plumb bob (4), wherein one end of the cable (1) is connected with the anode of the pointer type resistance tester (2), the other end of the cable (1) is connected with the plumb bob (4), the cable is provided with an exposed metal sheet (101) which is electrically connected with the cable and used as a probe at the joint with the plumb bob, the cathode of the pointer type resistance tester (2) is connected to the ground through an electric wire (3') and the grounding wire copper clamp (3), the portable field water level measuring instrument is characterized by further comprising a damping device (5) which generates resistance action on the plumb bob after the bottom of the plumb bob (4) enters water, the damping device (5) is provided with a ball gap (501) made of rubber materials and a shell (502) made of plastic materials, casing (502) are located the top of ball section (501), plumb bob (4) have insulating rubber tube (401), the plummet (402) of parcel in insulating rubber tube (401), the bottom surface of ball section (501) up and with the bottom fixed connection of plumb bob (4), casing (502) have the first plate body of convex surface shape (5021) of upwards bulging, the annular second plate body of concave surface shape (5022) of downwards bulging, the lower extreme annular edge of first plate body (5021) and the annular edge fixed connection of the inboard of second plate body (5022), plumb bob (4) vertically pass the central zone of first plate body (5021) and with first plate body (5021) fixed connection.
2. The portable field water level measuring instrument according to claim 1, wherein a gap (505) is formed between the ball segment (501) and the housing (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927595.7U CN215726216U (en) | 2021-08-17 | 2021-08-17 | Portable field water level measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927595.7U CN215726216U (en) | 2021-08-17 | 2021-08-17 | Portable field water level measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215726216U true CN215726216U (en) | 2022-02-01 |
Family
ID=79997356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121927595.7U Active CN215726216U (en) | 2021-08-17 | 2021-08-17 | Portable field water level measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215726216U (en) |
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2021
- 2021-08-17 CN CN202121927595.7U patent/CN215726216U/en active Active
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