Device for measuring buried depth of underground water
By combining a twisted measuring rope with a multimeter and the self-lubricating properties of polyoxymethylene material, the problems of large errors and heavy workload in measuring ultra-deep groundwater levels in existing technologies have been solved, achieving efficient and accurate groundwater level measurement and improving the success rate and efficiency of fieldwork.
Patent Information
- Application Number
- CN202423224883.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing technologies for measuring ultra-deep groundwater levels suffer from large measurement errors, enormous workload, and a high failure rate. They also cannot effectively overcome obstacles within the well, increasing the difficulty of fieldwork.
The measuring rope is a twisted pair. A multimeter is used to detect the conductor continuity and emit a buzzing sound. The self-lubricating properties of polyoxymethylene material and the conductivity of copper conductors are combined with the conductivity of water to achieve measurement. The pulley and stop structure optimizes the direction of tension and support, ensuring the stability and accuracy of the measuring rope.
It enables efficient and accurate measurement of groundwater levels in the field, reduces the damage rate and workload of measuring ropes, improves the success rate and efficiency of measurements, and reduces measurement errors.
Smart Images
Figure CN223883035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground water level measurement technical field especially relates to a device for measuring groundwater depth. BACKGROUND
[0002] When measuring the underground water level in field investigation, the commonly used measurement methods in the prior art are: directly measuring the underground water level by using a tape measure to connect a weight; measuring by using the electrical conductivity of water with an ordinary double-strand wire with a lead sinker at the tail, which can all achieve the measurement of the underground water level.
[0003] The prior art often has the following defects: the above methods have large elastic modulus due to the material characteristics of the tape measure and the wire, and when measuring the super-deep groundwater depth, the material deformation is large, resulting in large measurement error, and the well environment is complex and there are many obstacles, so the measurement personnel cannot visually observe the deep well environment, the existing method can only be measured blindly, the ordinary wire is soft and cannot transmit the force applied by the measurement personnel to the weight, so the weight cannot bypass the obstacles through the narrow gap in the well, the lower weight is easily blocked, and even the measurement weight and the wire cannot be taken out, when measuring the super-deep underground water level in field practice, repeated attempts are required, which increases the difficulty of field work, and even the measurement fails.
[0004] Therefore, the utility model provides a device for measuring groundwater depth. UTILITY MODEL CONTENT
[0005] The utility model aims at solving the problems in the prior art that when measuring the super-deep underground water level in field investigation, the prior art has large workload, large measurement error and measurement failure, and provides a device for measuring groundwater depth.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a device for measuring groundwater depth, comprising a multimeter, a machine well wall and a base plate, the pen of the multimeter is connected with a double-strand measuring rope, the bottom side of the machine well wall is provided with a groundwater liquid level, the double-strand measuring rope comprises an inner core, the inner core is a copper conductor, the outer side of the inner core is provided with a middle layer, and the middle layer is a polyformal layer.
[0007] The above components achieve the following effects: the multimeter detects the conduction of the conductor and emits a buzzing sound, the measurement personnel directly reads the calibrated scale on the double-strand measuring rope with the well mouth as a reference, and the underground water level depth can be easily read and measured.
[0008] Preferably, the outer side of the middle layer is provided with an outermost layer, the outermost layer is a heat shrinkage forming layer, and the outer side of the outermost layer is provided with a calibrated scale.
[0009] The outermost layer is arranged to further improve the performance of the double-stranded measuring rope.
[0010] Preferably, the tail of the double-stranded measuring rope is a tapered lead body, which is connected with the copper conductor inside and remains not in contact outside.
[0011] The double-stranded measuring rope is conducted through the conductivity of water, and the internal conductors are conducted to each other.
[0012] Preferably, the surface of the base plate is fixedly connected with a tapered rod, the other side of the base plate is fixedly connected with two support strips, the side of the two support strips close to each other is fixedly connected with a connecting pin, the side wall of the connecting pin is rotatably connected with a pulley, and the double-stranded measuring rope is located outside the pulley.
[0013] The above components achieve the effect that the pulling direction of the double-stranded measuring rope is changed during the process of lowering or pulling the rope, the pulling force of the staff pulling the double-stranded measuring rope is reduced, and the double-stranded measuring rope is supported during erection, avoiding the phenomenon that the double-stranded measuring rope and the inner side of the well wall rub against each other, which easily causes more stones and other impurities to fall onto the groundwater surface.
[0014] Preferably, the side wall of the connecting pin is fixedly connected with a stop block, and the stop block is an L-shaped structure.
[0015] The above components achieve the effect that the double-stranded measuring rope is prevented from being off the pulley as much as possible, and the stability of the double-stranded measuring rope and the pulley during movement is improved.
[0016] Preferably, the inside of the stop block is slidably connected with a sliding frame.
[0017] The above components achieve the effect that the double-stranded measuring rope can be flexibly closed by pulling the sliding frame.
[0018] Preferably, the sliding frame and the stop block are fixedly connected with a spring.
[0019] The above components achieve the effect that the sliding frame is attached to the surface of the connecting pin by the spring force.
[0020] In summary:
[0021] 1.The utility model discloses a method for measuring the depth of underground water, which comprises the following steps: connecting the first end of a double-stranded measuring rope to a multimeter, and putting the tail end of the double-stranded measuring rope into a well through a well hole; continuously paying out the double-stranded measuring rope until the tail end of the double-stranded measuring rope touches the surface of underground water; making the tail end lead drop conductive through the conductivity of water; making the internal conductors conductive; detecting the conduction of the conductors by the multimeter; and reading the calibrated scale on the double-stranded measuring rope directly with the well mouth as a reference.
[0022] 2.The utility model discloses a method for measuring the depth of underground water, which comprises the following steps: connecting the first end of a double-stranded measuring rope to a multimeter, and putting the tail end of the double-stranded measuring rope into a well through a well hole; continuously paying out the double-stranded measuring rope until the tail end of the double-stranded measuring rope touches the surface of underground water; making the tail end lead drop conductive through the conductivity of water; making the internal conductors conductive; detecting the conduction of the conductors by the multimeter; and reading the calibrated scale on the double-stranded measuring rope directly with the well mouth as a reference. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The utility model discloses a whole structure schematic diagram;
[0024] Figure 2 The utility model discloses a double-stranded measuring rope local structure schematic diagram;
[0025] Figure 3 The utility model discloses a double-stranded measuring rope local structure schematic diagram; Figure 2 The utility model discloses a double-stranded measuring rope local structure schematic diagram;
[0026] Figure 4 The utility model discloses a double-stranded measuring rope local structure schematic diagram;
[0027] Legend: 1, multimeter; 2, double-stranded measuring rope; 21, inner core; 22, middle layer; 23, outermost layer; 24, tail; 4, underground water surface; 7, taper rod; 8, base plate; 9, support strip; 10, connecting pin; 11, pulley; 12, stop block; 13, sliding frame; 14, spring. DETAILED DESCRIPTION
[0028] Referring to Figures 1-4 The utility model discloses a kind of technical solutions: a device for measuring the depth of underground water, including multimeter 1, machine well wall, base plate 8, the meter pen of multimeter 1 is connected with double-stranded measuring rope 2, and the bottom side of machine well wall is provided with underground water surface 4.
[0029] The specific settings and effects of the whole will be described below.
[0030] In the embodiment, the double-twisted measuring rope 2 comprises an inner core 21 which is a copper conductor, an intermediate layer 22 which is a polyformal layer arranged outside the inner core 21, and an outermost layer 23 which is a heat-shrunk layer arranged outside the intermediate layer 22 and having a scale marked on the outer side thereof. The double-twisted measuring rope 2 is used in combination with a well head as a reference. When the conductor is detected to be in conduction by the multimeter 1, a beep sound is emitted, and the scale marked on the double-twisted measuring rope 2 can be directly read by a measuring personnel to easily determine the buried depth of the underground water level. The tail 24 of the double-twisted measuring rope 2 is a tapered lead body which is internally connected to the copper conductor and externally kept from contact. The double-twisted measuring rope 2 is conducted by the conductivity of water to make the lead sinkers of the tail 24 in conduction, and then make the internal conductors in conduction with each other.
[0031] Specifically, the surface of the base plate 8 is fixedly connected with a taper rod 7, the other side of the base plate 8 is fixedly connected with two support strips 9, the side close to each other of the two support strips 9 is fixedly connected with a connecting pin 10, the side wall of the connecting pin 10 is rotationally connected with a pulley 11, and the double-twisted measuring rope 2 is located outside the pulley 11. During the process of lowering or pulling the rope, the pulling direction of the double-twisted measuring rope 2 is changed, the pulling force of the double-twisted measuring rope 2 by the worker is reduced, the erection and support of the double-twisted measuring rope 2 are avoided to prevent the double-twisted measuring rope 2 from rubbing against the inner side of the well wall of the machine well, and the phenomenon that many stones and other impurities easily fall onto the underground water surface 4 is avoided. The side wall of the connecting pin 10 is fixedly connected with a stop block 12 which is in an L-shaped structure. By arranging the stop block 12, the phenomenon that the double-twisted measuring rope 2 is off the pulley is avoided as much as possible, and the stability of the double-twisted measuring rope 2 during the movement process is improved. The inner side of the stop block 12 is slidably connected with a sliding frame 13. The sliding frame 13 is pulled to achieve flexible closing of the double-twisted measuring rope 2. The sliding frame 13 and the stop block 12 are fixedly connected with a spring 14. The sliding frame 13 is adhered to the surface of the connecting pin 10 by the elastic force of the spring 14.
[0032] The working principle is that when the deep underground water level is measured in the field investigation, firstly, the first end conductor of the multimeter 1 is connected with "+" and "-" of the multimeter 1 pen, and the multimeter 1 is rotated to the on-off position; then the end of the twisted measuring rope 2 is slowly put into the gap between the well wall, when encountering obstacles 3 and the water pipe 6 of the machine well, a little downward pushing force can easily pass through, when the end of the twisted measuring rope 2 contacts the underground water liquid surface 4, the multimeter 1 emits a buzzing sound, and the downward putting of the twisted measuring rope 2 is stopped and kept; the scale value on the twisted measuring rope 2 is read, which is the underground water depth at the place, the measuring principle of the device is based on the conductivity of water, and the characteristics of polyformaldehyde are utilized, the polyformaldehyde is an excellent engineering plastic, has the hardness, strength and rigidity similar to metal, has good self-lubricity, good fatigue resistance in a wide temperature and humidity range, and is elastic, in addition, the insulation performance is excellent, and even in a high temperature and high humidity environment, the arc resistance performance can be kept good, the single wire is formed by covering the outer layer of the copper conductor with polyformaldehyde, the two single wires are twisted, the outer layer is marked with a scale, and the end is made into a cone shape with a metal lead to increase the weight of the tail 24, thereby the device mainly measuring rope, the twisted measuring rope 2 for deep well is prepared, the characteristics of the new material polyformaldehyde are utilized, and the thin copper conductor is innovatively arranged in the polyformaldehyde to prepare the measuring rope, the rope is light in quality, convenient to carry in the field, high in mechanical strength, strong in toughness, can easily pass through the narrow gap in the well and bypass the obstacles 3, the tail end contacts the underground water liquid surface 4, and the underground water level can be successfully measured, the device is developed based on polyformaldehyde and has the following technical effects: the polyformaldehyde is light in quality, the measuring rope prepared is light and convenient, and the weight of the ordinary wire of the same specification is one third, so that the demand for easy carrying in the field operation can be met; the body is high in strength and good in toughness, the measuring rope prepared can not be broken after being bent by 180 degrees, compared with the ordinary wire, the hardness is high, the force can be transmitted, when the environment in the super-deep well in the field is complex, the measuring personnel can easily pass through the narrow gap and pass through the obstacles 3 through the downward pushing force, the device can avoid being blocked and reduce the damage rate of the measuring rope, and the success rate of the field experiment is ensured; the material is low in elastic modulus, the body is small in deformation when the super-deep underground water depth is measured, and almost has no elastic stretching, so that the accuracy of the measurement data is ensured; the tail 24 of the device is specially treated, the metal lead is made into a cylinder and connected with the internal copper conductor, the tail 24 is sharp and conical, the passability of the obstacles 3 is further improved, and the success rate of the field experiment is improved; the application measures the scale outside the measuring rope, the measurement value can be easily and directly read, and the working efficiency is improved; the method is based on the conductivity of water, the electrician instrument multimeter 1 detects the conductor conduction and emits a buzzing sound, the field implementation is very convenient, the field workload is greatly reduced, and the working efficiency is improved.
[0033] After the conical rod 7 is inserted into the ground inside the suitable position, the sliding frame 13 inside the stopper 12 is pulled out, the double-stranded measuring rope 2 is sleeved at the position between the stopper 12 and the pulley 11, the sliding frame 13 is loosened, at this time, the sliding frame 13 is adhered to the surface of the connecting pin 10 by the elastic force of the spring 14, at this time, the pulley 11 can realize the support work of the double-stranded measuring rope 2 close to the well wall position of the machine well, through the setting of the above structure, the pulling direction of the double-stranded measuring rope 2 is changed during the process of lowering the rope or pulling the rope, the pulling force of the staff pulling the double-stranded measuring rope 2 is reduced, and through the erection and support work of the double-stranded measuring rope 2, the phenomenon that the double-stranded measuring rope 2 and the inside of the well wall of the machine well are rubbed is avoided, the phenomenon that more stones and other impurities easily fall on the underground water liquid level 4 is avoided, the friction on the well wall of the machine well is effectively reduced, the service life of the double-stranded measuring rope 2 is further prolonged, the double-stranded measuring rope 2 is blocked in the closed space between the stopper 12, the sliding frame 13 and the pulley 11, the phenomenon that the double-stranded measuring rope 2 is off the pulley is avoided, the stability during the movement process between the double-stranded measuring rope 2 and the pulley 11 is further improved, and the sliding frame 13 can realize the flexible closing work of the double-stranded measuring rope 2.
[0034] In the description of the present application, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.
Claims
1. A device for measuring groundwater depth, comprising a multimeter (1) and a base plate (8), characterized in that To: the multimeter (1) is connected with a double-twisted measuring rope (2), the bottom side of the well wall of a machine well is provided with a groundwater level (4), the double-twisted measuring rope (2) comprises an inner core (21), the inner core (21) is a copper conductor, the outer side of the inner core (21) is provided with a middle layer (22), the middle layer (22) is a polyformaldehyde layer. The outer side of the middle layer (22) is provided with an outermost layer (23), the outermost layer (23) is a heat shrinkage forming layer, and the outer side of the outermost layer (23) is calibrated with a scale. The tail (24) of the double-twisted measuring rope (2) is a tapered lead body, the inner part is connected with a copper conductor respectively, and the outer part is kept from being in contact. The surface of the base plate (8) is fixedly connected with a tapered rod (7), the other side of the base plate (8) is fixedly connected with two support strips (9), the side close to each other of the two support strips (9) is fixedly connected with a connecting pin (10), the side wall of the connecting pin (10) is rotatably connected with a pulley (11), and the double-twisted measuring rope (2) is located outside the pulley (11).
2. The device for measuring groundwater depth according to claim 1, characterized in that: The side wall of the connecting pin (10) is fixedly connected with a stop block (12), the stop block (12) is an L-shaped structure. The inner part of the stop block (12) is slidably connected with a sliding frame (13). The sliding frame (13) and the stop block (12) are fixedly connected with a spring (14).
3. The device for measuring groundwater depth according to claim 1, characterized in that: 4. The device for measuring groundwater depth according to claim 1, characterized in that: 5. The device for measuring groundwater depth according to claim 4, characterized in that: 6. The device for measuring groundwater depth according to claim 5, characterized in that: 7. The device for measuring groundwater depth according to claim 6, characterized in that: