River water level early warning device with automatic alarm function

Abstract

This invention discloses a river water level early warning device with automatic alarm function, including a fixed rod fixedly installed on the river, a central control box and a buoy slidably installed on the fixed rod, a sliding rod fixedly installed at the top center of the fixed rod, and the outer diameter of the sliding rod is smaller than that of the fixed rod, the central control box slidably installed on the sliding rod on the fixed rod, the central control box is hollow inside and a magnet is installed at the bottom of the inner cavity, the buoy is located below the central control box and a magnet ring is installed at the top of the buoy, the bottom of the central control box has a groove for the magnet ring to be inserted, the length of the fixed rod can be set according to the actual situation of different areas and locations and the water level warning height can be set, and the water level is determined by the buoy rising with the water level and contacting the central control box. It is simpler and more economical than using a water level sensor to monitor the water level in real time, and is suitable for large-scale deployment.

Description

Technical Field

[0001] This invention relates to the field of river water level early warning equipment technology, specifically to a river water level early warning device with automatic alarm function. Background Technology

[0002] The core purpose of river water level early warning is to identify flood risks in advance through monitoring, thereby gaining valuable time for flood prevention and disaster reduction. Different water level levels are scientifically set and divided on different rivers, with different warning lines acting like traffic lights for flood control. Different water levels correspond to different flood control states and response measures. Since a river is an engineering facility flowing through a vast area, the height of the embankments varies at different locations, resulting in varying flood control and prevention capabilities. To facilitate the monitoring of water levels in different areas of the river to determine whether they have reached the warning level and to promptly report the situation, this invention proposes a river water level early warning device with an automatic alarm function. Summary of the Invention

[0003] The purpose of this invention is to provide a river water level early warning device with automatic alarm function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a river water level early warning device with automatic alarm function, comprising a fixed rod fixedly installed on the river, a central control box and a buoy slidably installed on the fixed rod, a sliding rod fixedly installed at the top center of the fixed rod, and the outer diameter of the sliding rod being smaller than that of the fixed rod, the central control box slidably installed on the sliding rod on the fixed rod, the central control box being hollow inside and a magnet block being installed at the bottom of the inner cavity, the buoy being located below the central control box and a magnet ring being installed at the top of the buoy, and a groove being provided at the bottom of the central control box for the magnet ring to be inserted. The central control box contains signal receiving, signal transmitting, and signal processing equipment, as well as a battery to power these devices. A laser sensor is installed in a groove at the bottom of the central control box. As the water level rises with the buoy, the magnetic ring on the buoy enters the groove and attracts the magnetic block inside the central control box. At the same time, the magnetic ring enters the groove, blocking the laser receiving mechanism in the laser sensor from receiving the laser emitted by the laser emitting mechanism. At this time, the height at which the buoy rises is the warning alarm height. Therefore, it can be determined that the river water level has reached the warning level, and the signal transmitting equipment inside the hollow box sends an alarm signal to the early warning center to issue a water level warning alarm.

[0005] Preferably, the top of the control box has an annular opening, and an annular top cover is screwed onto this opening. By providing the top cover, a sealed space is formed inside the control box, preventing dust and moisture from entering and affecting the operation of the internal equipment. Simultaneously, the top cover can be opened to maintain the internal equipment, and after the buoy has adhered to the bottom of the control box, the magnetic block inside the control box can be removed to release the adhesion. Manually releasing the adhesion is inconvenient for equipment located in remote areas. This can be addressed by ensuring that the adhesion force between the magnetic block and the magnetic ring is insufficient to support the overall weight of the buoy. When the river level drops, the buoy loses buoyancy and falls back onto the water surface under its own weight, bobbing up and down with the water.

[0006] Preferably, the top of the central control box is equipped with multiple photovoltaic panels. The central control box contains a controller and an inverter. The inverter converts the direct current (DC) electricity generated by the solar energy received by the photovoltaic panels into alternating current (AC), and the controller then charges the battery.

[0007] Preferably, multiple floats are fixedly installed on the outside of the central control box. When the river water level reaches the warning level, if the river continues to rise, the floats will lift the central control box on top to continue to float. The floats and the central control box can be connected to the embankment by cables to prevent them from drifting away with the current after detaching from the fixed pole. A position signal can be set inside the central control box to facilitate subsequent retrieval if the cable eventually breaks. If the attraction between the magnet and the magnet ring is insufficient, the floats on the outside of the central control box can provide additional buoyancy to the central control box after it accidentally detaches from the float, preventing it from sinking. When the central control box is hit by a foreign object, the side floats can buffer part of the impact force and protect the equipment inside the central control box.

[0008] Preferably, the buoy is equipped with an impeller that rotates on its surface, and a protective cover is provided on the outside of the impeller. The protective cover can prevent floating debris such as garbage and aquatic plants from getting tangled on the impeller and affecting its rotation.

[0009] Preferably, the bottom of the central control box cavity is provided with multiple magnet slots for placing magnet blocks, and fixing bolts are screwed onto the side walls of the magnet slots. These fixing bolts can be inserted into the magnet slots to compress the magnet blocks inside, making them less likely to slip out.

[0010] Preferably, the cross-section of the fixed rod and the sliding rod is elliptical, and the outer side of the fixed rod is provided with a scale for indicating the water level. The elliptical shape of the fixed rod and the sliding rod prevents the central control box and the buoy from rotating relative to the fixed rod and the sliding rod.

[0011] The impeller has multiple helical blades on its outer side, and an annular protrusion, which is gear-shaped, is located on its top. A generator can be installed inside the buoy. Through a gear transmission assembly, when the impeller is rotated by the water flow, the rotor inside the generator rotates under the transmission of the gear-shaped protrusion and the transmission assembly to generate electricity. At the same time, the water flow charges the battery through a controller and battery installed inside the buoy. If the buoy has an independent power source, a high-precision accelerometer (such as a Hippy40 sensor) can be installed inside the buoy to monitor wave height data by measuring the acceleration changes caused by the up-and-down movement of the buoy with the water surface waves, and the signal is transmitted to the central control box through a communication system.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the length of the fixed rod can be set according to the actual situation of different areas and locations and the water level warning height can be determined. The water level is determined by the buoy rising with the water level and contacting the central control box. Compared with the use of water level sensors to monitor the water level in real time, this method is simpler and more economical, and is suitable for large-scale deployment. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the connection between the control box, buoy, and fixing rod in this invention; Figure 2 This is a schematic diagram of the top view of the control box structure of the present invention; Figure 3 This is a schematic diagram of the top surface structure of the buoy of the present invention; Figure 4 This is a schematic diagram of the impeller top surface structure of the present invention.

[0014] In the diagram: 1. Central control box, 11. Float, 12. Photovoltaic panel, 13. Top cover, 14. Magnet block, 15. Slot, 2. Buoy, 21. Impeller, 22. Protective cover, 23. Magnet ring, 3. Fixing rod, 31. Sliding rod. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Reference Figure 1-4A river water level early warning device with automatic alarm function includes a fixed rod 3 fixedly installed on the river, a central control box 1 and a buoy 2 slidably installed on the fixed rod 3. A sliding rod 31 is fixedly installed at the top center of the fixed rod 3, and the outer diameter of the sliding rod 31 is smaller than that of the fixed rod 3. The central control box 1 is slidably installed on the sliding rod 31 on the fixed rod 3. The central control box 1 is hollow inside and a magnet block 14 is installed at the bottom of the inner cavity. The buoy 2 is located below the central control box 1 and a magnet ring 23 is installed at the top of the buoy 2. A groove is opened at the bottom of the central control box 1 for the magnet ring 23 to be inserted.

[0017] The central control box 1 has an annular opening at the top, and an annular top cover 13 is screwed onto the opening. Multiple photovoltaic panels 12 are installed on the top of the central control box 1.

[0018] Multiple floats 11 are fixedly installed on the outside of the central control box 1.

[0019] The buoy 2 is rotatably equipped with an impeller 21, and a protective cover 22 is provided on the outside of the impeller 21.

[0020] The bottom of the inner cavity of the central control box 1 is provided with multiple magnet slots for placing magnet blocks 14, and fixing bolts are screwed onto the side wall of the magnet slots.

[0021] The cross-sections of the fixed rod 3 and the sliding rod 31 are elliptical, and the outer side of the fixed rod 3 is provided with a scale for indicating the water level.

[0022] The impeller 21 has multiple helical blades on its outer side, and the top of the impeller 21 has an annular protrusion that is gear-shaped.

[0023] When using this device, the buoy 2 is inserted into the fixed rod 3 and floats on the water surface. Then, the central control box 1 is inserted into the sliding rod 31. Since the sliding rod 31 is smaller than the fixed rod 3, the central control box 1 will be stuck at the connection between the sliding rod 31 and the fixed rod 3. The buoy 2 will move up and down along the fixed rod 3 with the rise and fall of the water surface. Patrol personnel on the shore can know the water level data according to the scale on the fixed rod 3 and the position of the buoy. When the river water rises, the buoy 2 rises with the water surface and contacts the bottom of the central control box 1, so that the magnetic ring 23 enters the groove at the bottom of the central control box 1 and attracts each other with the magnetic block 14 inside the central control box 1, so that the two are connected together. At this time, the warning line alarm will be triggered. Since the buoy and the central control box are connected together, the central control box will not be repeatedly thrown up and damaged when the buoy rises and falls with the waves on the water surface.

[0024] The orientations or positional relationships shown in the accompanying drawings are for the purpose of facilitating and simplifying the description of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A river water level early warning device with automatic alarm function, comprising a fixed rod (3) fixedly installed on the river channel, and a central control box (1) and a buoy (2) slidably installed on the fixed rod (3), characterized in that: A sliding rod (31) is fixedly installed at the top center of the fixed rod (3), and the outer diameter of the sliding rod (31) is smaller than that of the fixed rod (3). The central control box (1) is slidably installed on the sliding rod (31) on the fixed rod (3). The central control box (1) is hollow inside and a magnet block (14) is installed at the bottom of the inner cavity. The buoy (2) is located below the central control box (1) and a magnet ring (23) is installed at the top of the buoy (2). A groove is opened at the bottom of the central control box (1) for the magnet ring (23) to be inserted.

2. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The central control box (1) has an annular opening at the top, and an annular top cover (13) is screwed onto the opening.

3. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The top of the central control box (1) is equipped with multiple photovoltaic panels (12).

4. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: Multiple floats (11) are fixedly installed on the outside of the central control box (1).

5. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The buoy (2) is rotatably equipped with an impeller (21), and a protective cover (22) is provided on the outside of the impeller (21).

6. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The bottom of the inner cavity of the central control box (1) is provided with multiple magnet slots for placing magnet blocks (14), and fixing bolts are screwed onto the side wall of the magnet slots.

7. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The cross-section of the fixed rod (3) and the sliding rod (31) is elliptical, and the outside of the fixed rod (3) is provided with a scale for indicating the water level.

8. A river water level early warning device with automatic alarm function according to claim 1, characterized in that: The impeller (21) has multiple spiral blades on its outer side, and the top of the impeller (21) has an annular protrusion, which is a ring gear.

Images