Water level early warning device for water conservancy project

Abstract

The invention discloses a water level early-warning device for a water conservancy project. The water level early-warning device comprises a floater, a limiting mechanism, a mounting frame, a signal conversion and processing device and display equipment, wherein a pressure sensor is arranged at the bottom of the floater; the floater is sleeved with a flow blocking pipe, the flow blocking pipe is rotationally connected with the mounting frame, a plurality of leaf plates are evenly arranged on the outer side of the lower portion of the flow blocking pipe along the rotating shaft, the leaf plates are vertically arranged, and the floater is located in the flow blocking pipe; the processor is electrically connected with an alarm and wirelessly connected with a mobile terminal. The floater is limited through the limiting mechanism, so that the floater can only move up and down to drive the sliding piece to move up and down, water level information is directly obtained through the signal conversion and processing device and displayed on the display device, and the water level sensor is simple and reasonable in structure, low in manufacturing cost, compact in structure, small in resistance in the working process, smooth and sensitive in action and high in measurement result accuracy; the measurement result is directly displayed; whether the floater works normally or not is judged through pressure information fed back by the pressure sensor; and a flow blocking pipe is arranged, so that the device is also suitable for large water waves.

Description

Technical Field

[0001] The invention relates to the technical field of water level early warning devices, and in particular to a water level early warning device for a water conservancy project. Background Art

[0002] Water conservancy projects are projects used to control and allocate natural surface water and groundwater, and are built to achieve the purpose of eliminating harm and promoting benefits. Water is an indispensable and precious resource for human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent floods and waterlogging disasters, and regulate and distribute water to meet the needs of people's lives and production for water resources; water conservancy projects need to build dams, dikes, spillways, sluices, water inlets, channels, ferry, rafts, fishways and other different types of hydraulic structures to achieve their goals. The construction of dams and dikes will inevitably block the water body and intercept the water level, causing the water level to rise. After intercepting the water level, the water level needs to be monitored to avoid missing the opportunity to discharge the flood and causing flood disasters. Therefore, a water level warning system is essential.

[0003] The application document with patent number 2022110742500 discloses a water level warning system for water conservancy projects, which sets a water level detection component. When the water level of the water area is detected in real time, the detection floating plate can mesh with the guide gear through the connecting tooth plate, thereby converting the distance of the detection floating plate falling or rising into the swing angle of the positioning pointer through the transmission inside the water level detection component, thereby effectively improving the accuracy and stability of the equipment's real-time monitoring of the water level in the water area; by setting a floating component, when the indication sensitivity of the positioning pointer is adjusted, the threaded shaft can adjust the distance between the fixed slide plate and the detection floating plate, thereby adjusting the up and down fluctuation space of the detection floating plate on the surface of the water area, so that the detection floating plate has sufficient space to fluctuate up and down, and at the same time reduces the sensitivity of the up and down floating of the connecting support plate, thereby improving the accuracy of the positioning pointer indication. However, the structure is complex and too many transmission gears are used, which not only has a high cost and occupies a large space, but also has a large gear transmission energy loss, which can easily affect the measurement results. It requires regular maintenance and is prone to jamming. The measurement results need to be carefully observed and read, which is inconvenient. Failures in monitoring cannot be discovered in time. When the wind and waves are strong, it is not easy to obtain accurate data. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a water level early warning device for a water conservancy project.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is a water level warning device for a water conservancy project: a float, which floats on the water surface and rises and falls with the water surface, so as to monitor the water level; A limiting mechanism, which is connected directly above the float and is used to limit the float so that it can only move up and down; A mounting frame, wherein the float is connected to the mounting frame through a limiting mechanism; A signal conversion and processing device, which converts the displacement signal of the float rise and fall into data and displays it on a display device; A battery, used to provide electrical energy to the water level warning device; The bottom of the float is provided with a mounting groove, a pressure sensor is provided in the mounting groove, and a sealing film is provided at the port of the mounting groove; The signal conversion and processing device includes a resistance wire, a slider, a switch, a voltmeter, an ammeter, a fixed value resistor and a processor, wherein the resistance wire, the slider, the switch, the ammeter, the fixed value resistor are connected in series with a battery, the voltmeter is connected in parallel with the fixed value resistor, and the voltmeter, the ammeter and the pressure sensor are all electrically connected to the processor; A flow-blocking tube is sleeved on the outer side of the float, and the flow-blocking tube is rotatably connected to the mounting frame. A plurality of blades are evenly arranged along the rotating shaft on the outer side of the lower part of the flow-blocking tube, and the blades are arranged vertically. The float is located inside the flow-blocking tube; The processor is electrically connected to the alarm and wirelessly connected to the mobile terminal.

[0006] Furthermore, the limiting mechanism includes a lifting rod fixedly connected to the upper side of the float, and a limiting bearing group. The limiting bearing group is provided with a plurality of bearings evenly arranged along the circumferential direction of the lifting rod, a bearing frame fixedly connected to the inner ring of the bearing, and a connecting frame. The bearing frame is fixedly connected to the connecting frame, and the outer ring surface of the bearing is in contact with the side of the lifting rod. The number of bearings on each limiting bearing group is an even number and is symmetrically arranged.

[0007] Furthermore, the mounting frame includes a support column, a cross bar fixedly connected to the support column, a vertical bar fixedly connected to the cross bar, and a bottom plate fixedly connected to the lower end of the support column. A plurality of connecting frames are arranged along the extension direction of the vertical bar and are fixedly connected to the vertical bar. Brackets are fixedly connected to the upper and lower ends of the baffle tube, and the brackets are rotatably connected to the vertical bar to achieve a rotatable connection between the baffle tube and the vertical bar.

[0008] Furthermore, an extension rod is fixedly connected to the upper end of the lifting rod, a sleeve is fixedly connected to the upper end of the extension rod, one end of the sliding plate is inserted into the sleeve and can slide relative to the sleeve, a spring is provided in the sleeve, one end of the spring is fixedly connected to the sleeve, the other end of the spring is fixedly connected to the sliding plate, the resistance wire is fixed to the vertical rod through a mounting seat, and the other end of the sliding plate is in contact with the resistance wire.

[0009] Furthermore, a photovoltaic panel mounting base is fixedly connected to the upper end of the support column, a photovoltaic panel rack is fixedly connected above the photovoltaic panel mounting base, photovoltaic panels are mounted on the photovoltaic panel rack, an electrical box is provided on the photovoltaic panel rack, the electrical box is provided with a transformer rectifier, the photovoltaic panel is electrically connected to the battery through the transformer rectifier and wires, and the battery and processor are both arranged inside the electrical box.

[0010] Compared with the prior art, the advantages of the present invention are as follows: the present invention uses a limiting mechanism to limit the float so that it can only move up and down, driving the slide to move up and down, and directly obtains water level information through a signal conversion and processing device, and displays it on a display device. The structure is simple and reasonable, the cost is low, the structure is compact, the resistance during the working process is small, the movement is smooth and sensitive, and the measurement result is highly accurate; the measurement result is directly displayed for easy reading; the pressure sensor is used to feedback pressure information to determine whether the float is working normally, and a fault can be discovered in time; a baffle pipe is provided, and when the wind and waves are strong, it will not cause large fluctuations in the water surface in the baffle pipe, and the monitoring data is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The present invention is a structural schematic diagram of a water level early warning device for a water conservancy project.

[0012] Figure 2 This is a schematic diagram of the structure of a water level warning device for a water conservancy project without the baffle pipe. Figure 1 .

[0013] Figure 3 This is a schematic diagram of the structure of a water level warning device for a water conservancy project without the baffle pipe. Figure 2 .

[0014] Figure 4 yes Figure 2 A is an enlarged structural diagram of FIG.

[0015] Figure 5 The invention discloses an electrical principle diagram of a water level early warning device for a hydraulic project.

[0016] Figure 6 It is a structural schematic diagram of a limit bearing group of a water level warning device for a water conservancy project according to the present invention.

[0017] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a float of a water level early warning device for a hydraulic project.

[0018] Figure 8 The present invention is a schematic cross-sectional structural diagram of a sleeve and a sliding vane part of a water level warning device for a hydraulic project.

[0019] Fig. 9The present invention is a schematic structural diagram of a lower mounting plate of a water level early warning device for a water conservancy project.

[0020] As shown in the figure: 1. float, 101. mounting groove, 102. sealing film, 2. limiting mechanism, 201. lifting rod, 202. bearing, 203. bearing frame, 204. connecting frame, 3. mounting frame, 301. supporting column, 302. cross bar, 303. vertical bar, 304. bottom plate, 4. signal conversion and processing device, 401. resistance wire, 402. slide, 403. switch, 404. voltmeter, 405. ammeter, 406. fixed value resistor, 407. processor, 5. display device, 6. battery, 7. pressure sensor, 8. baffle tube, 801. bracket, 9. blade, 10. extension rod, 11. sleeve, 12. spring, 13. mounting seat, 14. photovoltaic panel rack, 15. photovoltaic panel, 16. electrical box, 17. upper mounting plate, 18. lower mounting plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Embodiment 1, in combination with Figure 1-9 , a water level early warning device for a water conservancy project, a float 1, the float 1 floats on the water surface, rises and falls with the water surface, and is used to monitor the water level; A limiting mechanism 2, the limiting mechanism 2 is connected directly above the float 1 and is used to limit the float 1 so that it can only move up and down; A mounting frame 3, wherein the float 1 is connected to the mounting frame 3 via a limiting mechanism 2; A signal conversion and processing device 4, which converts the displacement signal of the float 1 into an electrical signal, and then into visual data, and displays it on a display device 5; Battery 6, used to provide electrical energy to the water level warning device; The bottom of the float 1 is provided with a mounting groove 101, a pressure sensor 7 is arranged in the mounting groove 101, and a sealing film 102 is arranged at the port of the mounting groove 101; The signal conversion and processing device 4 includes a resistance wire 401, a slider 402, a switch 403, a voltmeter 404, an ammeter 405, a fixed value resistor 406 and a processor 407. The resistance wire 401, the slider 402, the switch 403, the ammeter 405, the fixed value resistor 406 are connected in series with the battery 6, the voltmeter 404 is connected in parallel with the fixed value resistor 406, and the voltmeter 404, the ammeter 405 and the pressure sensor 7 are all electrically connected to the processor 407; The pressure sensor 7 adopts MPXH6300, and the processor 407 adopts Qinheng CH32V103.

[0023] The outer side of the float 1 is sleeved with a flow blocking tube 8, the flow blocking tube 8 is rotatably connected to the mounting frame 3, and a plurality of blades 9 are evenly arranged along the rotation axis on the outer side of the lower part of the flow blocking tube 8, the blades 9 are vertically arranged, and the float 1 is located inside the flow blocking tube 8; The processor 407 is electrically connected to the alarm and wirelessly connected to the mobile terminal.

[0024] When in use, the water level warning device is installed at the water level to be monitored through the mounting frame 3, and the current water level value is measured with a measuring tool. The lower end of the float 1 is located in the water, and the mounting height of the mounting frame 3 is adjusted when installing it, so that the slide is located in the middle of the resistance wire 401 at this time. The current water level value is input on the processor 407. When the water level changes, the float 1 rises and falls with the water level, driving the slide 402 to move up and down, thereby changing the resistance value of the resistance wire 401 connected to the circuit. According to the values ​​of the voltmeter 404 and the ammeter 405, the displacement of the slide 402 can be calculated, and then the water level value at this moment is calculated. The specific calculation process is: The total resistance of the resistance wire is X, and the length is L; the resistance of the fixed resistor is Z; the value of the voltmeter is U; the value of the ammeter is I; Initially, the slider is located in the middle of the resistor wire, so the initial resistance of the resistor wire connected to the circuit is X / 2 and the length is L / 2. The voltmeter reading is U1 and the ammeter reading is I1. After the water level changes, the length of the resistor wire connected to the circuit is L. 当前 , the resistance is , voltmeter reading U2, ammeter reading I2; according to ; You can calculate L 当前 The value of according to The displacement of the slide can be calculated, and the water level value can be obtained by subtracting the displacement from the initially input water level value. The water level value is displayed on the display device 5 and can be easily read.

[0025] The water level upper limit and the water level lower limit are input into the processor 407. When the water level exceeds the range, the alarm device will give a water level alarm, and the mobile terminal will also receive the water level alarm information. Since the float 1 naturally floats on the water surface, the depth of its lower end surface in the water is fixed, so the pressure remains unchanged. When the pressure value feedback by the pressure sensor 7 exceeds the preset range, the alarm will detect the fault alarm, and the mobile terminal will also receive the detection fault alarm information; because ; Combination ; Therefore, when the values ​​of the voltmeter and the ammeter are abnormal, the alarm device will issue a circuit fault alarm, and the mobile terminal will also receive the circuit fault alarm information; In this specific embodiment, the limiting mechanism 2 includes a lifting rod 201 fixedly connected to the upper side of the float 1, and a limiting bearing group. The limiting bearing group is provided with multiple, and the limiting bearing group includes multiple bearings 202 evenly arranged along the circumferential direction of the lifting rod 201, a bearing frame 203 fixedly connected to the inner ring of the bearing 202, and a connecting frame 204. The bearing frame 203 is fixedly connected to the connecting frame 204, and the outer ring surface of the bearing 202 contacts the side of the lifting rod 201. The number of bearings 202 on each limiting bearing group is an even number and is symmetrically arranged. In this specific embodiment, the cross section of the lifting rod 201 is rectangular, and the number of bearings 202 is 4, so the lifting rod 201 can be stably limited. Due to the bearing contact method, the resistance is small. After the water level changes, it can be ensured that the float 1 will rise and fall with the water level, thereby driving the sliding piece 402 to rise and fall, and changing the resistance value of the resistance wire 401 connected to the circuit.

[0026] In this specific embodiment, the mounting frame 3 includes a support column 301, a cross bar 302 fixedly connected to the support column 301, a vertical bar 303 fixedly connected to the cross bar 302, and a bottom plate 304 fixedly connected to the lower end of the support column 301. A plurality of the connecting frames 204 are arranged along the extension direction of the vertical bar 303 and are fixedly connected to the vertical bar 303. The upper and lower ends of the baffle tube 8 are fixedly connected with brackets 801, which are rotatably connected to the vertical bar 303 through the brackets 801, so as to realize the rotatable connection between the baffle tube 8 and the vertical bar 303. By setting the baffle tube 8, the water surface in the baffle tube 8 can be less affected by the waves, so that the measurement result is accurate. The blade 9 can be arranged to slowly rotate the baffle tube 8 under the action of water flow or wind force, so as to prevent the debris from being blocked by the baffle tube 8 and unable to continue to float and accumulate on the outside of the baffle tube 8.

[0027] In this specific embodiment, the upper end of the lifting rod 201 is fixedly connected to the extension rod 10, the upper end of the extension rod 10 is fixedly connected to the sleeve 11, one end of the slide 402 is inserted into the sleeve 11 and can slide relative to the sleeve 11, a spring 12 is arranged in the sleeve 11, one end of the spring 12 is fixedly connected to the sleeve 11, the other end of the spring 12 is fixedly connected to the slide 402, the resistance wire 401 is fixed to the vertical rod 303 through the mounting seat 13, and the other end of the slide 402 is in conflict with the resistance wire 401. It can ensure that the slide 402 always conflicts with the resistance wire 401 to avoid poor contact, and it can also avoid that the poor contact causes the resistance between the slide 402 and the resistance wire 401 to be too large, and it is not easy to move relative to each other, so as to ensure smooth movement.

[0028] In this specific embodiment, the upper end of the support column 301 is fixedly connected with a photovoltaic panel mounting base, and the photovoltaic panel mounting base is fixedly connected with a photovoltaic panel rack 14, and a photovoltaic panel 15 is mounted on the photovoltaic panel rack 14. The photovoltaic panel rack 14 is provided with an electrical box 16, and the electrical box 16 is provided with a transformer rectifier. The photovoltaic panel 15 is electrically connected to the battery 6 through the transformer rectifier and wires, and the battery 6 and the processor 407 are both arranged inside the electrical box 16. Solar power is used for energy saving and environmental protection.

[0029] In this specific embodiment, the photovoltaic panel mounting base includes an upper mounting plate 17 and a lower mounting plate 18, the lower mounting plate 18 is fixedly connected to the support column 301, the lower mounting plate 18 is evenly provided with a plurality of lower mounting holes along the circumference, and the upper mounting plate 17 is evenly provided with a plurality of upper mounting holes along the circumference, and the horizontal adjustment of the photovoltaic panel 15 is achieved by aligning and cooperating with the lower mounting holes at different positions, and the upper mounting plate 17 and the lower mounting plate 18 are fixedly connected by bolts.

[0030] In this specific implementation, the alarm uses one or more of a voice alarm and a light alarm.

[0031] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0034] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A water level early warning device for a water conservancy project, characterized in that include: A float (1), the float (1) floats on the water surface and rises and falls with the water surface, so as to monitor the water level; A limiting mechanism (2), the limiting mechanism (2) being connected to the top of the float (1) and used to limit the float (1) so that it can only move up and down; A mounting frame (3), wherein the float (1) is connected to the mounting frame (3) via a limiting mechanism (2); A signal conversion and processing device (4), wherein the signal conversion and processing device (4) converts the displacement signal of the float (1) when it rises and falls into an electrical signal, and then converts it into visual data, and displays it on a display device (5); A battery (6), used to provide electrical energy to the water level warning device; The bottom of the float (1) is provided with a mounting groove (101), a pressure sensor (7) is provided in the mounting groove (101), and a sealing film (102) is provided at the port of the mounting groove (101); The signal conversion and processing device (4) comprises a resistance wire (401), a slider (402), a switch (403), a voltmeter (404), an ammeter (405), a fixed value resistor (406) and a processor (407); the resistance wire (401), the slider (402), the switch (403), the ammeter (405), the fixed value resistor (406) and a battery (6) are connected in series; the voltmeter (404) and the fixed value resistor (406) are connected in parallel; and the voltmeter (404), the ammeter (405) and the pressure sensor (7) are all electrically connected to the processor (407); The outer side of the float (1) is provided with a flow-blocking tube (8), the flow-blocking tube (8) is rotatably connected to the mounting frame (3), a plurality of blades (9) are evenly arranged along the rotation axis on the outer side of the lower part of the flow-blocking tube (8), the blades (9) are arranged vertically, and the float (1) is located inside the flow-blocking tube (8); The processor (407) is electrically connected to an alarm and wirelessly connected to a mobile terminal.

2. A water level early warning device for a hydraulic project according to claim 1, characterized in that: The limiting mechanism (2) comprises a lifting rod (201) fixedly connected to the upper side of the float (1), and a limiting bearing group, wherein a plurality of the limiting bearing groups are provided, and the limiting bearing group comprises a plurality of bearings (202) evenly arranged along the circumferential direction of the lifting rod (201), a bearing frame (203) fixedly connected to the inner ring of the bearing (202), and a connecting frame (204), wherein the bearing frame (203) is fixedly connected to the connecting frame (204), and the outer ring surface of the bearing (202) contacts the side surface of the lifting rod (201), and the number of bearings (202) on each limiting bearing group is an even number and is symmetrically arranged.

3. A water level early warning device for a hydraulic project according to claim 2, characterized in that: The mounting frame (3) comprises a support column (301), a cross bar (302) fixedly connected to the support column (301), a vertical bar (303) fixedly connected to the cross bar (302), and a bottom plate (304) fixedly connected to the lower end of the support column (301); a plurality of connecting frames (204) are arranged along the extension direction of the vertical bar (303) and are fixedly connected to the vertical bar (303); brackets (801) are fixedly connected to the upper and lower ends of the baffle tube (8); the brackets (801) are rotatably connected to the vertical bar (303), thereby realizing a rotatable connection between the baffle tube (8) and the vertical bar (303).

4. A water level early warning device for a hydraulic project according to claim 3, characterized in that: The upper end of the lifting rod (201) is fixedly connected to an extension rod (10), and the upper end of the extension rod (10) is fixedly connected to a sleeve (11). One end of the sliding plate (402) is inserted into the sleeve (11) and can slide relative to the sleeve (11). A spring (12) is provided in the sleeve (11), one end of the spring (12) is fixedly connected to the sleeve (11), and the other end of the spring (12) is fixedly connected to the sliding plate (402). The resistance wire (401) is fixed to the vertical rod (303) through a mounting seat (13), and the other end of the sliding plate (402) contacts the resistance wire (401).

5. A water level early warning device for a hydraulic project according to claim 3, characterized in that: A photovoltaic panel mounting base is fixedly connected to the upper end of the support column (301), a photovoltaic panel frame (14) is fixedly connected above the photovoltaic panel mounting base, a photovoltaic panel (15) is mounted on the photovoltaic panel frame (14), an electrical box (16) is provided on the photovoltaic panel frame (14), the electrical box (16) is provided with a transformer rectifier, the photovoltaic panel (15) is electrically connected to the battery (6) via the transformer rectifier and wires, and the battery (6) and the processor (407) are both arranged inside the electrical box (16).

6. A water level early warning device for a hydraulic project according to claim 5, characterized in that: The photovoltaic panel mounting base comprises an upper mounting plate (17) and a lower mounting plate (18); the lower mounting plate (18) is fixedly connected to a support column (301); the lower mounting plate (18) is evenly provided with a plurality of lower mounting holes along the circumference; the upper mounting plate (17) is evenly provided with a plurality of upper mounting holes along the circumference; the photovoltaic panel (15) is adjusted in the horizontal direction by aligning the upper mounting holes with the lower mounting holes at different positions; the upper mounting plate (17) and the lower mounting plate (18) are fixedly connected by bolts.

7. A water level early warning device for a hydraulic project according to any one of claims 1 to 6, characterized in that: The alarm device adopts one or more of voice alarm and light alarm.

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