CN210486998U

CN210486998U - Groundwater water level measuring device

Info

Publication number: CN210486998U
Application number: CN201921871451.7U
Authority: CN
Inventors: 冒建; 翟淑花; 刘欢欢; 王云涛
Original assignee: Beijing Institute Of Geology
Current assignee: Beijing Institute Of Geology
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-05-08
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to an underground water level measuring device, which comprises a base, a winder, a coaxial line, a heavy hammer and an electrical system, wherein the electrical system comprises a power supply, an ammeter and a buzzer, one end of the coaxial line is connected with the electrical system, and the other end of the coaxial line is connected with the heavy hammer; the inner core wire and the outer core wire of the coaxial wire are respectively arranged at two sides of the coaxial wire, and the inner core wire and the outer core wire are arranged at different elevations; scales are marked on the outer surface of the coaxial line by using an insulating tape, and waterproof glue is coated on the insulating tape; and the battery, the ammeter and the buzzer of the electrical system are arranged on the metal plate at the end part of the winder. The utility model has the advantages that: the interference caused by water drops and the like on the well wall can be avoided, the measurement precision is improved, and the error rate and the error are reduced; meanwhile, the carrying and the placement of an operator are facilitated, and the measuring efficiency is greatly improved; simple structure, easy operation, time and labor saving, high measurement accuracy and reusability.

Description

Groundwater water level measuring device

Technical Field

The utility model belongs to ground water level measurement field, concretely relates to groundwater water level measuring device.

Background

With the rapid development of society, the demand for groundwater in production, life and the like is gradually increasing, and therefore groundwater level monitoring is of great importance for water resource management. In addition, the underground water level monitoring is not only a key index for underground water evaluation, but also important contents for researching landslide, ground settlement, sandy soil liquefaction and other geological disasters, so that how to quickly and accurately measure the underground water level is particularly important.

The prior art roughly divides underground water level measurement into three types: the first method is to judge the position of underground water by sound generated by the contact of a measuring cylinder and the water level, and the measuring method is simple to operate, but the measuring result is often greatly different from the real situation. The second method is a laser infrared method and an ultrasonic method, but the cost is high, and the anti-interference capability is weak, so that an ideal measuring effect cannot be achieved. The third is an electrical contact method, the basic principle is that a circuit is formed by contacting a wire with the water surface, current is generated, and then the water level is judged, which is a simple and low-cost method commonly used at present.

Patent number is CN 10500400B's application discloses a simple and easy ground water level measuring device, and including universal meter, electric wire, universal meter pen-shape metre, short reinforcing bar or screw etc. in the concrete measuring device. The application meets the requirements and performance of groundwater measurement, but has two problems. Firstly, the operation is more complicated, a person needs to lift wires in the measurement process, and the person needs to pay attention to the reading change of the multimeter all the time, so that the measurement task cannot be completed by a single person. Secondly, the heavy object and the meter pen are bound together, so that two pen points are easy to simultaneously touch a wall of a water-hanging well or other conductors to conduct the sensor, and the measurement result is distorted. Patent number CN 205537838U's application discloses a simple and easy drilling groundwater water level measuring device, and the device comprises leather tape, heavy object, discoloration layer, meets water through discoloration layer and changes the colour and judge whether reach the surface of water. However, when the underground water level is deep, the device is difficult to judge whether the color changing layer changes color, the color changing layer can be confirmed only by lifting the measuring rope out of the ground and observing the color changing layer with eyes, and if the color changing layer does not change color, the measuring rope needs to be lowered again, so that manpower and material resources are wasted.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve inaccurate, the complex operation's of measuring result problem among the prior art, the utility model provides an underground water level measuring device.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

the underground water level measuring device comprises a base, a winder, a coaxial line, a heavy hammer and an electrical system, wherein the coaxial line is wound on the winder, the winder is arranged on the base, one end of the coaxial line is connected with the electrical system, the other end of the coaxial line is connected with the heavy hammer, the electrical system comprises a battery, an ammeter and a buzzer, the winder is cylindrical, a metal plate is arranged at the end part of the winder, and the electrical system is arranged on the metal plate;

when the coaxial line is connected with the heavy hammer, an inner core line and an outer core line of the coaxial line are separated; the inner core wire and the outer core wire penetrate through the wire passing hole of the heavy hammer, and the inner core wire and the outer core wire are set to be different elevations.

Further, the size of the weight is as follows: diameter: 1-1.5cm, hammer height: 10cm, cone height: 2.4 cm.

Further, a handle is mounted on the winder.

Furthermore, scales are arranged on the outer surface of the coaxial line through an insulating adhesive tape, and waterproof adhesive is coated on the insulating adhesive tape.

(III) advantageous effects

The utility model has the advantages that: the utility model separates the inner core wire and the outer core wire of the coaxial wire when the coaxial wire is connected with the heavy hammer, the inner core wire and the outer core wire are positioned at two sides of the coaxial wire and then respectively pass through the wire passing holes of the heavy hammer, and the inner core wire and the outer core wire are set to different elevations, thereby avoiding the coaxial wire from touching water drops on the well wall to distort the measuring result; the measurement precision is improved, and the error rate and errors are reduced;

the buzzer, the ammeter, the battery and other parts are arranged on the metal plate at the end part of the winder, so that the winder is convenient for an operator to carry and place, and the measuring efficiency is greatly improved;

the power is consumed only when the coaxial line contacts the water surface, so that the power is saved; simple structure, easy operation, time and labor saving, high measurement accuracy and reusability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic diagram of the structure of the weight.

[ description of reference ]

1: a battery; 2: an ammeter; 3: a buzzer; 4: a base; 5: a metal plate; 6: a winder; 7: a coaxial line; 8: a handle; 9: a weight; 10: an inner core wire; 11: an outer core wire.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

An underground water level measuring apparatus, the structure of which is shown in fig. 1 and 2, comprises: the device comprises a base 4, a winder 4, a coaxial wire 7, a heavy hammer 9 and an electrical system, wherein the coaxial wire 7 is wound on the winder 6, the winder is arranged on the base 4, one end of the coaxial wire 7 is connected with the electrical system, the other end of the coaxial wire 7 is connected with the heavy hammer 9, and the electrical system comprises a battery 1, an ammeter 2 and a buzzer 3;

scales are marked on the outer surface of the coaxial line 7 by using an insulating tape, and waterproof glue is coated on the insulating tape. When surveying the water level, because ground water level is generally darker, make mistakes easily in section-by-section measurement coaxial line length, and accumulate the error easily, consequently the utility model discloses mark the scale on the exocuticle for the insulating tape of coaxial line in advance to scribble waterproof glue on the insulating tape that bears the scale, also reduced the work load of measuring the coaxial line greatly when improving its waterproof performance. The buzzer is connected with the ammeter in series, when the pointer of the ammeter deflects, the buzzer starts to give an alarm, and an operator does not need to stare at the ammeter.

When the coaxial line 7 is connected with the heavy hammer 9, an inner core line 10 and an outer core line 11 of the coaxial line are separated; the inner core wire and the outer core wire pass through the wire passing hole of the heavy hammer 9, and are set to different elevations.

In the prior art, two ends of a measuring line are easy to simultaneously touch a wall of a well or other similar conductors hanging water to conduct the whole circuit, and a measurer mistakenly thinks that the measuring line reaches the water surface, so that measurement errors are caused; the utility model discloses shell the epidermis of coaxial line when the weight is connected to the coaxial line, separate the interior heart yearn of inside and outside for the both sides of coaxial line are arranged in to interior heart yearn branch, then the interior heart yearn of inside and outside passes the line hole of crossing of weight respectively, including the in-process of buckling on the heart yearn of outside and outside sets up it into different elevations again, and such design has reduced the coaxial line inside and outside heart yearn simultaneously and has run into the well hanging water or other error rates that do not really contact the condition of the water level.

The bobbin 6 is cylindrical, a metal plate 5 is mounted at the end of the bobbin, and the battery 1, the ammeter 2 and the buzzer 3 of the electrical system are mounted on the metal plate 5. The utility model discloses the cylindrical spooler 6 that sets up, its middle shaft body is used for the winding of electric coaxial line, has realized the receiving and releasing of coaxial line 7 through installing handle 8, and the metal sheet 5 of spooler 6 tip is used for installing parts such as bee calling organ 3, ampere meter 2, battery 1, has realized the effective integration of measuring part, conveniently carries, is convenient for place; meanwhile, the parts occupy extra space, a plurality of operators are not needed to watch and operate the parts, manpower is saved, and measuring efficiency is greatly improved.

Further, the specification of the weight 9 is as follows: diameter of the weight: 1-1.5cm, hammer height: 10cm, cone height: 2.4 cm; in the groundwater level measurement process, the weight is preferably smooth, thin and heavy.

Furthermore, the winder 6 is provided with a handle 8, the expansion and contraction of the coaxial wire 6 are controlled by the swinging of the handle 8, the operation is simple, and a plurality of manpower investments are not needed.

The utility model provides a groundwater water level measuring device's use step as follows:

(1) when measuring the groundwater level, firstly observing the conditions in the well as much as possible by means of a strong light flashlight and other equipment, and selecting the part with less pipelines as much as possible to put down the coaxial line and the heavy hammer in order to avoid blocking the hammer;

(2) in the process of lowering the heavy hammer and the coaxial line, the heavy hammer is continuously lifted upwards in a small amplitude, the situation that the heavy hammer is not jammed is avoided, when the heavy hammer is close to the water surface, an operator can obviously feel that the lifting force is reduced due to the buoyancy effect, the coaxial line is continuously lowered at the moment, and the buzzer state is closely noticed until the buzzer gives an alarm;

(3) when the buzzer gives an alarm, an operator slowly raises the coaxial line and slowly sinks the coaxial line for a plurality of times, observes the alarm condition of the buzzer, determines the accurate position of the water level, records the scales of the coaxial line and calculates the measured value of the water level;

(4) and (5) shaking the winder handle to slowly retract the coaxial line to complete the measurement of the underground water level of a well.

The above embodiments are only for explaining the present invention, and do not constitute the limitation of the protection scope of the present invention, and those skilled in the art can make various changes or modifications within the scope of the claims, all of which belong to the essence of the present invention.

Claims

1. The underground water level measuring device is characterized in that the electric system comprises a battery, an ammeter and a buzzer, the winder is cylindrical, a metal plate is mounted at the end part of the winder, and the electric system is mounted on the metal plate;

2. The groundwater level measuring device of claim 1, wherein the size of the weight is: diameter: 1-1.5cm, hammer height: 10cm, cone height: 2.4 cm.

3. The groundwater level measuring device of claim 1, wherein a handle is installed on the reel.

4. The groundwater level measuring device of claim 1, wherein the outer skin of the coaxial line is graduated with an insulating tape coated with a waterproof adhesive.