Underground water level monitoring equipment

Abstract

The utility model relates to underground water level monitoring equipment, its structure includes frame, outer casing, resistance wire, insulated wire, floater and measuring module, floater is provided in the outer casing and can freely move up and down in the inner cavity of outer casing, resistance wire and insulated wire penetrate into the outer casing, and measuring module is provided in the outer casing. The floating object comprises a floating body and a conductor located on the floating body, the lower end of the insulated wire is connected with the conductor, the resistance wire penetrates through the conductor and always keeps contact with the conductor, the lower end of the resistance wire is connected with a weight, the resistance wire is in a vertical state through the gravity of the weight, and the measuring module is connected with the resistance wire and the insulated wire to form a closed loop. The underground water level monitoring device solves the problem that the existing monitoring device for measuring the underground water level according to the water pressure principle is easily influenced by atmospheric pressure. Meanwhile, the problem that traditional underground water level monitoring equipment is difficult to place and take back due to the fact that the traditional underground water level monitoring equipment is easily wound together with lines of other equipment in a detection well is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of underground water monitoring technology, specifically a kind of underground water level monitoring equipment. BACKGROUND

[0002] Water existing in the space of rock layer under the surface is called underground water, and it is an important component of water resources. Underground water is closely related to human survival and geological environment. To protect underground water, real-time monitoring of underground water becomes an important part. Underground water level monitoring is to monitor the depth and dynamic changes of underground water, so as to understand the attenuation law of underground water, the available and sustainable utilization of underground water, and to protect underground water resources year after year.

[0003] For monitoring of underground water level, the existing underground water level monitoring equipment is mostly based on water pressure principle to calculate underground water level, but such monitoring equipment is easily affected by atmospheric pressure, and the existing underground water level monitoring equipment is easily entangled with the lines of other equipment in the detection well, resulting in difficulty in placing and retrieving. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an underground water level monitoring equipment to solve the problem that the existing underground water level monitoring equipment is easily affected by atmospheric pressure and is easily entangled with the lines of other equipment in the detection well.

[0005] The utility model is implemented as follows: an underground water level monitoring equipment, comprising a rack, an outer sleeve, a resistance wire, an insulating wire, a floating object and a measurement module, a vertically downward outer sleeve is arranged on the rack, the floating object is arranged in the outer sleeve and can move freely up and down in the inner cavity of the outer sleeve, the resistance wire and the insulating wire are inserted into the outer sleeve, the floating object comprises a float and a conductor on the float, the lower end of the insulating wire is connected with the conductor, the resistance wire passes through the conductor and always maintains contact with the conductor, a weight is connected to the lower end of the resistance wire, the resistance wire is in a vertical state by the gravity of the weight, and the measurement module is connected with the resistance wire and the insulating wire to form a closed loop for measuring the total resistance of the loop.

[0006] Further, adjusting legs are arranged at the four corners of the rack, a connecting sleeve is arranged at the middle of the rack, and the upper end of the outer sleeve is connected with the connecting sleeve.

[0007] Further, a guide roller is arranged on the rack, the guide roller is located directly above the connecting sleeve, and is used to guide the resistance wire to the center position of the outer sleeve.

[0008] Further, the reel device arranged on the frame comprises a spool, the spool is divided into two sections by a partition disc, and the two sections are respectively used for winding the resistance wire and the insulated conductor.

[0009] Further, the outer sleeve is composed of a plurality of connecting pipes which are detachably connected in a head-to-tail mode, and a plurality of water-permeable holes are formed in the side wall of the outer sleeve.

[0010] Further, a first through hole is formed in the middle of the floating body, a second through hole is formed in the middle of the electrically-conductive body, the first through hole and the second through hole correspond to each other, two electrically-conductive rollers are oppositely arranged above the second through hole, one of the electrically-conductive rollers is connected to the electrically-conductive body through a fixed electrically-conductive frame, and the other electrically-conductive roller is arranged on a sliding electrically-conductive frame, a horizontal electrically-conductive slide rod is arranged on the sliding electrically-conductive frame, the electrically-conductive slide rod is slidingly connected to the electrically-conductive body, a spring is arranged on the electrically-conductive slide rod, and the spring is used for driving the two electrically-conductive rollers to move close to each other.

[0011] Further, an arc-shaped groove is arranged on the electrically-conductive roller.

[0012] Further, a terminal is arranged on the electrically-conductive body, and the terminal is used for connecting to the end of the insulated conductor.

[0013] The principle of the utility model is that the resistance value of the access circuit is converted into the length of the resistance wire, so as to indirectly reflect the depth of the underground water level, and the calculation formula is x=R / r, wherein x is the depth of the underground water, R is the total resistance of the resistance wire of the access circuit, and r is the unit length resistance of the resistance wire, according to the above formula, the depth of the underground water, i.e. the water level of the underground water, can be calculated by measuring the total resistance R of the resistance wire of the access circuit.

[0014] The utility model adopts the method of measuring the resistance size to inversely calculate the underground water level to monitor the underground water level, solves the problem that the monitoring equipment for measuring the underground water level according to the water pressure principle is easily affected by the atmospheric pressure. Meanwhile, the utility model uses the spliced outer sleeve to send the resistance wire, the floating object and the insulated conductor into the domestic well or the machine well, and can solve the problem that the traditional underground water level monitoring equipment is easily entangled with the lines of other equipment in the detection well, leading to the problems of difficult placement and retrieval. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the use reference drawing of the utility model.

[0016] Figure 2 is the structure diagram of the utility model.

[0017] Figure 3 is the top view of the frame of the utility model.

[0018] Figure 4 is the structural diagram of the connecting pipe of the utility model.

[0019] Figure 5 is the structural diagram of the floating object of the utility model.

[0020] Figure 6 is the plan view of the floating object of the utility model.

[0021] In the figure: 1, rack; 2, winding and releasing device; 3, measuring module; 4, connecting sleeve; 5, outer sleeve; 6, resistance wire; 7, insulated wire; 8, floating object; 9, weight; 10, guide roller; 11, adjusting support leg; 12, well; 2-1, spool; 2-2, separation disc; 4-1, fixed semicircular sleeve; 4-2, movable semicircular sleeve; 5-1, connecting pipe; 5-2, internal thread; 5-3, external thread; 8-1, floating body; 8-2, conductor; 8-3, conductive roller; 8-4, fixed guide point frame; 8-5, sliding conductive frame; 8-6, spring; 8-7, first through hole; 8-8, second through hole; 8-9, terminal; 8-10, arc-shaped groove; 8-11, conductive slide bar. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model are described below in combination with the drawings.

[0023] As Figures 1 to 6 shown, the utility model is a kind of underground water level monitoring equipment, its structure includes rack 1, outer sleeve 5, resistance wire 6, insulated wire 7, floating object 8 and measuring module 3 etc.

[0024] Rack 1 is arranged in the upper of civil well 12 or machine well 12, and the upper end of outer sleeve 5 is fixed on rack 1, and outer sleeve 5 is vertical state, and outer sleeve 5 is inserted into well 12 downwards, and the underground water in well 12 enters into outer sleeve 5, and the water level in outer sleeve 5 is consistent, and the space inside outer sleeve 5 is separated from external space by outer sleeve 5, and resistance wire 6 and insulated wire 7 are inserted into outer sleeve 5, so as to avoid the entanglement of resistance wire 6 and insulated wire 7 with the guidance of other equipment in well 12.

[0025] Among them, the lower end of resistance wire 6 is connected with weight 9, the vertical state of resistance wire 6 in outer sleeve 5 is realized by the weight of weight 9, floating object 8 is also arranged in outer sleeve 5, resistance wire 6 passes through floating object 8 downwards, and the weight 9 connected with the lower end of resistance wire 6 is below underground water surface, and floating object 8 can float on water surface.

[0026] The floating object 8 comprises a floating body 8-1 and a conductive body 8-2 located on the floating body 8-1, the lower end of the insulated wire 7 is connected with the conductive body 8-2, the resistance wire 6 passes through the conductive body 8-2 and always keeps contact with the conductive body 8-2, the measuring module 3 is connected with the upper end of the insulated wire 7, and the measuring module 3 is connected with the resistance wire 6 at the well mouth position; the measuring module 3 and the insulated wire 7 and the resistance wire 6 form a closed loop, wherein the part of the resistance wire 6 participating in the closed loop is from the connecting point of the well mouth position and the measuring module 3 to the connecting point of the resistance wire 6 and the conductive body 8-2, and the distance between the two points (that is, the length of the resistance wire 6 participating in the closed loop) corresponds to the distance from the well mouth to the underground water surface, that is, the burial depth of the underground water.

[0027] The measuring module 3 is used for measuring the total resistance of the circuit, and the length of the resistance wire 6 participating in the closed loop can be inversely calculated through the resistance, so that the burial depth of the underground water is obtained. The calculation formula is x = R / r, wherein x is the burial depth of the underground water, R is the total resistance of the resistance wire 6 connected to the circuit, and r is the unit length resistance of the resistance wire 6.

[0028] The insulated wire 7 is a varnished wire or a rubber sheathed wire, and the resistance value is very small and can be omitted. In order to ensure the accuracy of measurement, the resistance value of the insulated wire 7 can also be obtained in advance, because the lower end of the insulated wire 7 is connected with the conductive body 8-2 of the floating object 8, and the upper end is connected with the measuring module 3. In the measurement, the whole insulated wire 7 participates in the closed loop, and the resistance value of the insulated wire 7 is fixed. After the total resistance value of the closed loop is measured by the measuring module 3, the accurate total resistance R of the resistance wire 6 connected to the circuit can be obtained by subtracting the resistance value of the insulated wire 7.

[0029] In an embodiment of the utility model, the measuring module 3 can directly convert the burial depth of the underground water according to the measured resistance value, and display through the display module.

[0030] As shown in Figure 4 The outer sleeve pipe 5 is composed of a plurality of connecting pipes 5-1 which can be detachably connected at the head and tail, the connecting pipe 5-1 can be a PVC pipe, the connecting pipes 5-1 are connected through threads, an inner thread 5-2 is arranged at one end of the outer sleeve pipe 5, an outer thread 5-3 is arranged at the other end of the outer sleeve pipe 5, and a plurality of water permeable holes are formed in the side wall of the outer sleeve pipe 5 and are uniformly distributed along the side wall of the outer sleeve pipe 5, so as to ensure the consistency of the water level inside and outside the outer sleeve pipe 5.

[0031] Adjusting legs 11 are arranged at the four corners of the rack 1, a connecting sleeve 4 is arranged at the middle of the rack 1, and the upper end of the outer sleeve pipe 5 is fixedly connected with the connecting sleeve 4. The height of the support can be adjusted through the adjusting legs 11, so that the utility model can be stably placed above the domestic well 12 or the machine well 12. And the rack 1 is leveled through the adjusting legs 11, so as to ensure that the outer sleeve pipe 5 is in a vertical state.

[0032] As shown inFigure 3 As shown, the connecting sleeve 4 includes a fixed semicircular sleeve 4-1 fixed on the rack 1 and a detachable movable semicircular sleeve 4-2, in use, the upper end of the outer sleeve 5 is placed between the fixed semicircular sleeve 4-1 and the movable semicircular sleeve 4-2, and then the movable semicircular sleeve 4-2 is fixed on the fixed semicircular sleeve 4-1 by bolts, so as to fix and connect the upper end of the outer sleeve 5 with the connecting sleeve 4.

[0033] The winding and unwinding device 2 is installed on the rack 1, the winding and unwinding device 2 includes a horizontal spool 2-1, the spool 2-1 is divided into left and right two sections by a partition disc 2-2, the left and right two sections of the spool 2-1 are respectively used for winding and unwinding the resistance wire 6 and the insulating wire 7, wherein one end of the insulating wire 7 wound on the spool 2-1 is connected with the slip ring device of the winding and unwinding device 2 and connected with the measuring module 3 through the slip ring device, and the other end is a free end used for connecting with the conductive body 8-2 of the float 8. The resistance wire 6 and the insulating wire 7 are synchronously wound and unwound through the spool 2-1.

[0034] As shown in the figure, the part of the spool 2-1 winding the resistance wire 6 is located above the connecting sleeve 4, so that the resistance wire 6 is directly input into the outer sleeve 5 below after being output from the spool 2-1, in order to ensure that the resistance wire 6 is located at the center position of the outer sleeve 5 after being input into the outer sleeve 5, a guide roller 10 is arranged on the rack 1, the guide roller 10 is located directly above the connecting sleeve 4, the resistance wire 6 is converted to a vertical state after passing through the guide roller 10, and is located at the center position of the outer sleeve 5.

[0035] As shown in the figure, Figure 5 , Figure 6 The float 8 is a thin cylindrical shape as a whole, the diameter of the float 8 is smaller than the diameter of the outer sleeve 5, so that the float 8 can smoothly move up and down in the outer sleeve 5. The conductive body 8-2 is a sheet shape and is located above the float 8-1, a first through hole 8-7 is formed in the middle of the float 8-1, a second through hole 8-8 is formed in the middle of the conductive body 8-2, the first through hole 8-7 and the second through hole 8-8 correspond to each other, and the resistance wire 6 passes through the first through hole 8-7 and the second through hole 8-8.

[0036] Two conductive rollers 8-3 are oppositely arranged above the second through hole 8-8, one of which is connected with the conductive body 8-2 through a fixed conductive frame 8-4 and has a fixed position, and the other is arranged on a sliding conductive frame 8-5, and a horizontal conductive slide rod 8-11 is arranged on the sliding conductive frame 8-5 and is in sliding connection with the vertical plate of the conductive body 8-2. A spring 8-6 is arranged on the conductive slide rod 8-11 and is located between the sliding conductive frame 8-5 and the vertical plate of the conductive body 8-2. Under the driving of the spring 8-6, the conductive roller 8-3 is close to the other conductive roller 8-3, so as to clamp the resistance wire 6 passing between the two conductive rollers 8-3, maintain the contact between the conductive roller 8-3 and the resistance wire 6, and reduce the resistance of the floating object 8 moving up and down along the resistance wire 6. Since the conductive roller 8-3, the rotating shaft of the conductive roller 8-3, the sliding conductive frame 8-5, the conductive slide rod 8-11 and the conductive body 8-2 are all metal materials (preferably copper), and are in a connected state at the connection part, the above-mentioned parts can be regarded as a whole conductive body, and stable conductive contact between the resistance wire 6 and the conductive body 8-2 is realized through stable conductive contact between the electric roller and the resistance wire 6.

[0037] The material of the floating body 8-1 is selected to make the water surface just reach the conductive body when the floating object 8 floats in the water.

[0038] An arc-shaped groove 8-10 is arranged on the conductive roller 8-3, and the resistance wire 6 is located in the arc-shaped grooves 8-10 of the two conductive rollers 8-3. The arc-shaped groove 8-10 can prevent the resistance wire 6 from directly escaping from the two conductive rollers 8-3, and can also increase the contact area between the resistance wire 6 and the conductive roller 8-3 and reduce the resistance value of the contact position.

[0039] Meanwhile, a terminal 8-9 is arranged on the conductive body 8-2, and the lower end of the insulating wire 7 is connected with the terminal 8-9.

[0040] The resistance wire 6 needs to meet the requirements of normal operation in the underground water environment for a long time and maintain a certain accuracy. The accuracy, service life, stability in the underground water environment and the cost of the material of the resistance wire 6 are compared, and after a series of tests, the resistance wire 6 is determined to be a corrosion-resistant and low-cost nickel-chromium alloy wire.

[0041] The utility model discloses a method as follows: the utility model is placed above the domestic well 12 or the machine well 12, and a plurality of connecting pipes 5-1 are connected into a certain length of casing pipe 5, the casing pipe 5 is placed into the well 12, and the upper end of the casing pipe 5 is connected with the connecting sleeve 4 of the rack 1; the end of the resistance wire 6 is connected with the weight 9 after passing through the float 8, the insulating wire 7 is connected with the conductor 8-2 on the float 8, the weight 9 and the float 8 are placed into the casing pipe 5; the resistance wire 6 and the insulating wire 7 are lowered through the winding and unwinding device 2 until the insulating wire 7 changes from the tight state to the relaxed state, which indicates that the float 8 contacts with the underground water surface, and a certain length of resistance wire 6 and insulating wire 7 are continuously lowered to ensure that the weight 9 is below the underground water surface, then the wire clamp of the measuring device connection end is connected with the resistance wire 6 at the well 12 mouth, and the resistance value is measured through the measuring device to obtain the depth of the underground water.

[0042] After the measurement is completed, the wire clamp of the measuring device connection end is removed from the resistance wire 6, the resistance wire 6 and the insulating wire 7 are wound upwards through the winding and unwinding device 2 until the float 8 and the weight 9 are lifted above the well 12 mouth, the weight 9 and the float 8 are removed, the casing pipe 5 is removed from the connecting sleeve 4, and the connecting pipe 5-1 is disassembled, and meanwhile, each part of the utility model can be disassembled, and after disassembling, the utility model is convenient to move and store.

Claims

1. A groundwater level monitoring device, characterized by, The utility model relates to a kind of resistance wire measuring device, including rack, outer sleeve, resistance wire, insulated wire, float and measuring module, vertically downward outer sleeve is arranged on the rack, the float is arranged in the outer sleeve and float can move freely in outer sleeve cavity, the resistance wire and the insulated wire are inserted into the outer sleeve, the float includes float and conductor on float, the lower end of the insulated wire is connected with the conductor, the resistance wire passes through the conductor and always keeps contact with the conductor, weight is connected in the lower end of the resistance wire, resistance wire is vertical state by the gravity of weight, the measuring module is connected with the resistance wire and the insulated wire to form closed loop for measuring the total resistance of loop.

2. The groundwater level monitoring device according to claim 1, characterized in that Adjusting leg is arranged in the four corners of the rack, connecting sleeve is arranged in the middle of the rack, the upper end of the outer sleeve is connected with the connecting sleeve.

3. The groundwater level monitoring device according to claim 2, characterized in that Guide roller is arranged on the rack, and the guide roller is located directly above the connecting sleeve, for guiding resistance wire to the center position of outer sleeve.

4. The groundwater level monitoring device of claim 1, wherein, It also includes winding device arranged on the rack, and the winding device includes spool, the spool is divided into two sections by partition disc, and two sections of spool are used for winding resistance wire and insulated wire respectively.

5. The groundwater level monitoring device of claim 1, wherein, The outer sleeve is composed of several connecting pipes which can be connected at the head and tail, and several water-permeable holes are formed in the side wall of the outer sleeve.

6. The groundwater level monitoring device of claim 1, wherein, First through hole is formed in the middle of the float, second through hole is formed in the middle of the conductor, first through hole and second through hole correspond to each other, two conductive rollers are arranged above second through hole in opposite, one conductive roller is connected with the conductor through fixed conductive frame, and the other conductive roller is arranged on sliding conductive frame, horizontal conductive slide bar is arranged on the sliding conductive frame, conductive slide bar is slidingly connected with the conductor, spring is arranged on the conductive slide bar, and the spring is used to drive two conductive rollers to approach each other.

7. The groundwater level monitoring device according to claim 6, characterized in that Arc-shaped groove is arranged on the conductive roller.

8. The groundwater level monitoring device of claim 1, wherein, Terminal is arranged on the conductor, and the terminal is used to connect with the end of the insulated wire.

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