Karst groundwater level monitoring device

Abstract

The utility model relates to a karst groundwater level monitoring device, which relates to the technical field of groundwater level measuring equipment, and comprises a box body, a universal meter, a cable, a battery, a detection assembly and a control assembly. A box door is hinged to the box body, a detection hole is formed in the bottom of the box body, the universal meter is fixedly installed on the box body, the cable is composed of two insulated wires, the two wires form a double-wire loop, one end of the cable is connected with the universal meter, and the other end of the cable is connected with the universal meter. The two wires close to one end of the universal meter are respectively and fixedly connected with a positive electrode lead and a negative electrode lead of the universal meter, the battery is arranged in the box body, the battery is arranged on any one of the wires in series, the detection assembly is installed at one end, far away from the universal meter, of the cable, and the control assembly is installed on the box body and used for controlling operation of a detection piece. The karst underground water level monitoring method has the effect of reducing the cost of karst underground water level monitoring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground water level measuring equipment, and in particular to a karst underground water level monitoring device. BACKGROUND

[0002] Due to the special geological structure of karst areas, underground karst caves, underground rivers and the like are widely developed, and the water level measurement of karst underground water is the basis for carrying out karst underground water research. In this area, the water layer is deeply buried, the cave entrance is narrow, and the structure inside the cave is complex, which brings great challenges to underground water detection work.

[0003] At present, the commonly used underground water level measurement methods in karst areas include traditional manual measurement or electronic sensor measurement. Due to the narrow detection port, manual monitoring is difficult and time-consuming and labor-intensive, and the electronic sensor equipment is relatively large in size and is easily stuck in the cave during detection. Moreover, such equipment is expensive.

[0004] In view of the related art, manual measurement is difficult and labor costs are high, and the existing measurement device is relatively expensive and has certain limitations. Therefore, it is an urgent technical problem to design a water level detection equipment which is simple to operate and low in cost. CONTENT OF THE INVENTION

[0005] In order to reduce the cost of karst underground water level monitoring, the present application provides a karst underground water level monitoring device.

[0006] The karst underground water level monitoring device provided by the present application adopts the following technical scheme:

[0007] A karst underground water level monitoring device comprises:

[0008] A box body is hinged with a box door, and a detection hole is formed in the bottom of the box body.

[0009] A multimeter is fixedly installed on the box body.

[0010] A cable line is composed of two insulated conductors, and the two conductors form a double-line loop. One end of the cable line is connected with the multimeter, and the two conductors near one end of the multimeter are fixedly connected with the positive and negative leads of the multimeter, respectively.

[0011] A battery is arranged in the box body, and the battery is connected in series on one of the cable lines.

[0012] A detection assembly is installed at the end of the cable line away from the multimeter.

[0013] A control assembly is mounted on the box body, and the control assembly is used to control the operation of the detection member.

[0014] By adopting the above technical scheme, the box body is arranged to facilitate the carrying and use of the whole device, and the battery provides power for the device. When measuring the water level, when the detection assembly contacts the water surface, the circuit is connected due to the conductivity of water, the multimeter displays the value change, at this time, the pay-off length of the cable is the water level depth, the control assembly controls the detection assembly to stop paying off and displays the measurement data, the measurement task is completed, the cable structure is slender, and in the situation that the karst area has narrow cave entrances and complex cave structures, simple underground water level measurement can be realized, and the measurement cost is reduced.

[0015] Optionally, the detection assembly comprises:

[0016] A detection member is arranged at the end of the cable away from the multimeter, two through holes are arranged at the top of the detection member, two wires of the cable are arranged in the detection member through the through holes, and a water inlet is arranged at the bottom of the detection member.

[0017] A mounting plate is fixedly installed in the detection member, the two wires are sintered on the mounting plate, and the mounting plate is made of insulating material.

[0018] A movable plate is slidably installed in the detection member, and in the initial state, the movable plate abuts against the water inlet.

[0019] By adopting the above technical scheme, the movable plate in the detection member abuts against the water inlet in the initial state, effectively preventing external impurities from entering the inside of the detection member. When the detection member is immersed in water, the movable plate is automatically opened due to the buoyancy, so that water smoothly enters the detection member, realizes the conduction of the circuit, and thus triggers the multimeter to display the reading, improves the response speed and reliability of the monitoring device, and at the same time, the cable is fixed on the mounting plate through the through hole, so as to ensure the stability and safety of the electrical connection.

[0020] Optionally, the control assembly comprises:

[0021] A roller is rotatably installed in the box body, and the cable is wound on the roller.

[0022] A motor is fixedly installed on the box body, and the movable end of the motor is coaxially and fixedly connected to the roller.

[0023] A stop block is fixedly installed on the roller.

[0024] An infrared sensor is embedded on the inner wall of the box body, and the infrared sensor is positionally matched with the stop block.

[0025] A controller is fixedly installed on the outer wall of the box, and the infrared sensor, the motor and the multimeter are electrically connected with the controller.

[0026] By adopting the above technical scheme, the cooperation of the roller and the motor can automatically collect and release the cable, ensuring the orderly collection and release of the cable, improving the working efficiency of the monitoring device, and the design of matching the position of the infrared sensor and the stop block ensures the cooperation of the roller and the infrared sensor during rotation, records the number of rotations of the roller, and calculates the water level depth, and displays the controller, while the controller controls the motor to stop or reverse, effectively integrates the infrared sensor, the motor and the multimeter, realizes intelligent management of the whole system, and further improves the reliability and operation convenience of the equipment.

[0027] Optionally, a bulb is fixedly installed on the box, and the bulb is connected in series on a wire.

[0028] By adopting the above technical scheme, the bulb is connected in series on the cable, and the bulb is lit when the circuit is turned on, which can directly display the circuit state, and ensure the normal operation of the monitoring work when the multimeter reading is not easy to observe at night or in insufficient light, facilitating the observation and maintenance of the operator.

[0029] Optionally, the detection member comprises a box body and a box cover, and the box cover is threadedly connected to the bottom of the box body.

[0030] By adopting the above technical scheme, the detection member is convenient to disassemble and assemble, and after one measurement is completed, the water stain in the box and the internal components are cleaned by disassembling the detection member, so that the circuit where the cable is located returns to the initial open state, so as to facilitate the next measurement, and the use convenience of the device is improved.

[0031] Optionally, a water outlet is formed in the box cover.

[0032] By adopting the above technical scheme, after the monitoring is completed, the design of the water outlet can timely drain the water in the detection member, avoiding the damage of the device caused by internal water accumulation, and improving the reliability of the device.

[0033] Optionally, a counterweight is fixedly installed at the bottom of the movable plate.

[0034] By adopting the above technical scheme, the design of the counterweight can ensure the stable descent of the detection member, avoid the floating of the detection member on the water surface due to water flow fluctuation or external interference, cause the error of water level monitoring, and improve the accuracy of the monitoring result.

[0035] Optionally, a sealing ring is fixedly installed on the penetration hole.

[0036] By adopting the technical scheme, the sealing ring is arranged to effectively prevent the detection part from being prematurely entered into the inside of the detection part due to the high moisture in the monitoring environment when the detection part does not reach the water surface, to avoid problems such as circuit short circuit caused by damp or water seepage, and to improve the reliability and stability of the device in complex terrain and harsh environment.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. By installing the detection assembly at one end of the cable and placing it below the detection hole, when the installation plate contacts the water surface, the circuit is connected, and the multimeter displays the reading, thereby realizing simple and reliable water level monitoring, avoiding the problems of frequent manual measurement and time-consuming and laborious work of traditional manual measurement;

[0039] 2. The control assembly drives the roller to rotate through the motor, drives the cable to collect and release the water level monitoring, and improves the applicability and flexibility of the device;

[0040] 3. The bulb is connected in series on the cable, which can directly display the circuit state, especially in the dark or insufficient light environment, which can ensure the smooth progress of the monitoring work and facilitate the observation of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic view of the water level monitoring device of the embodiment of the present application;

[0042] Figure 2 is a structural schematic view of the embodiment of the present application for displaying the cable;

[0043] Figure 3 is a sectional view of the water level monitoring device of the embodiment of the present application;

[0044] Figure 4 is a local enlarged view of A of the embodiment of the present application. Figure 3

[0045] BRIEF DESCRIPTION OF DRAWINGS

[0046] 1, box; 11, box door; 12, detection hole; 2, multimeter; 3, cable; 4, battery; 5, detection assembly; 51, detection part; 511, box body; 512, box cover; 513, water outlet; 52, installation plate; 53, movable plate; 6, control assembly; 61, roller; 62, motor; 63, stop block; 64, infrared sensor; 65, controller; 7, bulb; 8, counterweight; 9, sealing ring. DETAILED DESCRIPTION

[0047] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0048] ​In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0049] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" 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, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] The following will be described in detail with reference to the accompanying drawings Figures 1-4 The application is further described in detail.

[0051] The embodiment of the application discloses a karst underground water level monitoring device.

[0052] Refer to Figure 1 And Figure 2 The karst underground water level monitoring device comprises a box body 1, a multimeter 2, a cable 3, a battery 4, a detection assembly 5 and a control assembly 6. The box body 1 is hinged with a box door 11, the bottom of the box body 1 is provided with a detection hole 12, the multimeter 2 is fixedly installed on the box body 1, the cable 3 is composed of two insulated wires, the two wires form a double-line loop, one end of the cable 3 is connected with the multimeter 2, the two wires close to one end of the multimeter 2 are fixedly connected with the positive electrode lead and the negative electrode lead of the multimeter 2 respectively, the battery 4 is arranged in the box body 1, the battery 4 is arranged in series on any one wire, the detection assembly 5 is installed at one end of the cable 3 away from the multimeter 2, the control assembly 6 is installed on the box body 1, and the control assembly 6 is used for controlling the operation of the detection part 51.

[0053] When the karst underground water level monitoring device is used, the box body 1 is carried to the monitoring site, the device is powered by the battery 4 in the box body 1, two wires are connected to the positive and negative poles of the multimeter 2, the detection assembly 5 is lowered from the bottom detection hole 12 of the box body 1, when the detection assembly 5 contacts the karst underground water surface, the conductivity of the water makes the circuit connected, the multimeter 2 displays the value change, at the same time, the control assembly 6 controls the detection assembly 5 to stop lowering and display the measurement data, thereby completing the measurement of the karst underground water level, the measurement process is simple and fast, and the measurement cost is greatly reduced.

[0054] With reference to Figure 3 and Figure 4 , the detection assembly 5 comprises a detection piece 51, a mounting plate 52 and a movable plate 53. The detection piece 51 is arranged at one end of the cable 3 away from the multimeter 2, two through holes are formed in the top of the detection piece 51, the two wires are arranged in the detection piece 51 through the through holes, a sealing ring 9 is fixedly installed on the through hole, the detection piece 51 comprises a box body 511 and a box cover 512, the box cover 512 is threadedly connected to the bottom of the box body 511, a water inlet is formed in the box cover 512, and a water outlet 513 is also formed in the box cover 512.

[0055] With reference to Figure 3 and Figure 4 , the mounting plate 52 is fixedly installed in the detection piece 51, and the two ends of the cable 3 away from the multimeter 2 are sintered on the mounting plate 52, and the movable plate 53 is slidingly installed in the detection piece 51. In the initial state, the movable plate 53 abuts at the water inlet, and the sliding direction of the movable plate 53 is along the axial direction of the combination.

[0056] When the detection assembly 5 is used for karst underground water level monitoring, the detection assembly 5 is lowered from the bottom detection hole 12 of the box body 1 together with the cable 3, in the lowering process, due to the sealing ring 9 fixedly installed on the through hole, water can be effectively prevented from entering the inside of the detection piece 51 in advance when the detection piece 51 does not reach the water surface, so as to avoid problems such as circuit short circuit, when the detection piece 51 is immersed in water, the buoyancy of the water makes the movable plate 53 originally abutting at the water inlet slide upward along the axial direction of the box body 511 to open, the water inlet is opened, water enters the detection piece 51 through the water inlet, and the two ends of the wires away from the multimeter 2 are sintered on the mounting plate 52, when the water enters the detection piece 51 and contacts the mounting plate 52, the circuit is conducted.

[0057] After the monitoring is completed, during the lifting of the detection assembly 5 upwards, the water in the detection piece 51 is quickly discharged through the water outlet 513, and the box cover 512 can be detached from the box body 511 through threaded connection, so as to facilitate the cleaning of the water stains in the detection piece 51 and the cleaning of the internal components. After cleaning, the box cover 512 is re-tightly installed on the box body 511, and the movable plate 53 falls to the initial position under the action of its own gravity, and abuts against the water inlet again, so as to prepare for the next monitoring.

[0058] With reference to Figure 1 and Figure 3 , the control assembly 6 comprises a roller 61, a motor 62, a stop block 63, an infrared sensor 64 and a controller 65. The roller 61 is rotatably installed in the box body 1, and the two cable lines 3 are wound on the roller 61. The fixed end of the motor 62 is fixedly installed on the box body 1, and the movable end of the motor 62 is coaxially fixedly connected to the roller 61. The stop block 63 is fixedly installed on the roller 61. The infrared sensor 64 is embedded on the inner wall of the box body 1, and the position of the infrared sensor 64 matches the stop block 63. The controller 65 is fixedly installed on the outer wall of the box body 1, and the infrared sensor 64, the motor 62 and the multimeter 2 are electrically connected to the controller 65.

[0059] When the karst underground water level monitoring device is used, the motor 62 is started by the controller 65 first, the motor 62 drives the roller 61 to start rotating, and the rotation of the roller 61 makes the cable line 3 start to be lowered, and the detection assembly 5 is lowered to the bottom of the detection hole 12 outside the box body 1, and approaches the karst underground water surface.

[0060] During the rotation of the roller 61, the stop block 63 fixed on the roller 61 rotates with the roller 61. When the stop block 63 rotates to the position corresponding to the infrared sensor 64 embedded on the inner wall of the box body 1, the infrared sensor 64 detects the presence of the stop block 63 and transmits a signal to the controller 65. The controller 65 records the number of rotations of the roller 61 according to the received signal, in combination with the preset position relationship between the infrared sensor 64 and the stop block 63 and the parameters of the roller 61.

[0061] When the detection assembly 5 contacts the water surface, the circuit is conducted, and the multimeter 2 displays a changed value. The signal is also transmitted to the controller 65. At this time, the controller 65 calculates the lowering length of the cable line 3 according to the number of rotations of the roller 61 calculated before, in combination with parameters such as the diameter of the roller 61, and further obtains the water level depth, and displays the measurement data on the controller 65.

[0062] At the same time, the controller 65 controls the motor 62 to stop running, so that the detection assembly 5 stops lowering. If it is necessary to wind up the cable line 3 and the detection assembly 5, the controller 65 can control the motor 62 to reverse, drive the roller 61 to reverse rotation, and re-wind the cable line 3 on the roller 61, so as to complete the operation process of one water level monitoring.

[0063] If in the absence of external power, also can through manual rotation of the drum 61, artificial count drum 61 rotation number depth measurement.

[0064] Referring to Figure 1 , the lamp 7 is fixedly installed on the box 1, and the lamp 7 is connected in series on any one cable 3. In the process of monitoring the karst underground water level, once the detection assembly 5 contacts the water surface, the circuit is instantaneously connected due to the conductivity of water, the current passes through the lamp 7 connected in series on the cable 3, and the lamp 7 is immediately lighted. Clear circuit state feedback is provided for the detection personnel, especially in the night or insufficient light monitoring environment, the indication of the multimeter 2 can be difficult to clearly observe, but the bright state of the lamp 7 is obvious at a glance, which greatly improves the convenience of operation and the monitoring efficiency.

[0065] Referring to Figure 1 , the counterweight 8 is fixedly installed at the bottom of the movable plate 53, and the counterweight 8 enables the detection piece 51 connected with the movable plate 53 to stably and vertically descend, and does not cause the detection piece 51 to tilt, shake or even float in the descending process due to the fluctuation of water flow, the airflow disturbance of the well wall or other external interference factors.

[0066] The implementation principle of the karst underground water level monitoring device in the embodiment of the application is as follows: when measuring the water level, the motor 62 drives the drum 61 to rotate, the cable 3 is reeled in or out, the detection assembly 5 connected at one end of the cable 3 can be lowered into the water, the stop block 63 on the drum 61 cooperates with the infrared sensor 64, the controller 65 can calculate the number of rotations of the drum 61, and then the length of the cable 3 being reeled out is obtained.

[0067] The detection piece 51 is connected with the cable 3 through the penetration hole, the sealing ring 9 at the penetration hole is waterproof, the mounting plate 52 in the box is connected with the cable 3, initially, the movable plate 53 is abutted against the water inlet under the action of the counterweight 8 to prevent impurities from entering, and after the detection piece 51 enters the water, the movable plate 53 is opened due to the buoyancy, and the water entering causes the circuit at the mounting plate 52 to be conducted.

[0068] At this time, the multimeter 2 displays the value change due to the circuit connection, the signal is transmitted to the controller 65, the controller 65 determines the water level depth in combination with the length of the cable 3 being reeled out calculated before and displays the water level depth. Meanwhile, the lamp 7 is connected in series on the cable 3, and the lamp 7 is lighted when the circuit is conducted, and the circuit state can be intuitively displayed in poor light, and the whole device realizes water level measurement in a low-cost and easy-to-operate manner.

[0069] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made on the basis of the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A karst groundwater level monitoring device, characterized by, Include: Box (1), the box (1) is hinged with a box door (11), the bottom of the box (1) is provided with a detection hole (12); Multimeter (2), the multimeter (2) is fixedly installed on the box (1); Cable (3), the cable (3) is composed of two insulated wires, and the two wires form a double line loop, one end of the cable (3) is connected with the multimeter (2), and the two wires near the one end of the multimeter (2) are fixedly connected with the positive and negative lead wires of the multimeter (2) respectively; Battery (4), the battery (4) is arranged in the box (1), and the battery (4) is arranged in series on one of the cable (3); Detection assembly (5), the detection assembly (5) is installed at one end of the cable (3) away from the multimeter (2); Control assembly (6), the control assembly (6) is installed on the box (1), and the control assembly (6) is used for controlling the operation of the detection assembly (5).

2. The karst groundwater level monitoring device according to claim 1, characterized in that, The detection assembly (5) comprises: Detection piece (51), the detection piece (51) is arranged at one end of the cable (3) away from the multimeter (2), two through holes are formed in the top of the detection piece (51), the two wires of the cable (3) are arranged in the detection piece (51) through the through holes, and a water inlet is formed in the bottom of the detection piece (51); Mounting plate (52), the mounting plate (52) is fixedly installed in the detection piece (51), the two wires are sintered on the mounting plate (52), and the mounting plate (52) is made of insulating material; Movable plate (53), the movable plate (53) is slidably installed in the detection piece (51), and in the initial state, the movable plate (53) abuts against the water inlet.

3. The karst groundwater level monitoring device according to claim 2, characterized in that, The control assembly (6) comprises: Roller (61), the roller (61) is rotatably installed in the box (1), and the cable (3) is wound on the roller (61); Motor (62), the fixed end of the motor (62) is fixedly installed on the box (1), and the movable end of the motor (62) is coaxially fixedly connected with the roller (61); Stop block (63), the stop block (63) is fixedly installed on the roller (61); Infrared sensor (64), the infrared sensor (64) is embedded on the inner wall of the box (1), and the infrared sensor (64) is positionally matched with the stop block (63); Controller (65), the controller (65) is fixedly installed on the outer wall of the box (1), and the infrared sensor (64), the motor (62) and the multimeter (2) are electrically connected with the controller (65).

4. The karst groundwater level monitoring device according to claim 1, characterized in that, The box (1) is fixedly provided with a bulb (7), and the bulb (7) is connected in series on one wire.

5. The karst groundwater level monitoring device according to claim 2, characterized in that, The detection piece (51) comprises a box body (511) and a box cover (512), and the box cover (512) is threadedly connected to the bottom of the box body (511).

6. The karst groundwater level monitoring device according to claim 5, characterized in that, A water outlet (513) is formed in the box cover (512).

7. The karst groundwater level monitoring device according to claim 2, characterized by, The counterweight (8) is fixedly installed at the bottom of the movable plate (53).

8. The karst groundwater level monitoring device according to claim 2, characterized in that, The sealing ring (9) is fixedly installed on the penetrating hole.

Images