A rainfall monitoring and alarm device

Abstract

This utility model relates to a rainfall monitoring and alarm device, belonging to the field of rainfall monitoring technology. It includes an outer detection cylinder with an open top, and an inner detection cylinder vertically arranged inside. The bottom of the inner detection cylinder has several through holes connecting the inner and outer cylinders. A detection funnel is located at the top of the inner detection cylinder, and an electrode assembly is installed inside the funnel. The electrode assembly is connected to an alarm component on the outside of the outer detection cylinder via wires. An installation hole is provided on the side wall of the inner detection cylinder above the funnel, and an overflow pipe is fixedly installed in the installation hole. One end of the overflow pipe extends into the funnel, and the other end extends to the bottom of the outer detection cylinder. This utility model, by combining a mechanical structure with electrical signals, avoids the problem of impurities easily clogging the complex structure of tipping bucket sensors, and also overcomes the defect of electronic flow meters being easily affected by environmental interference.

Description

Technical Field

[0001] This utility model belongs to the field of rainfall monitoring technology, specifically relating to a rainfall monitoring alarm device. Background Technology

[0002] In the field of rainfall monitoring, accurate and timely acquisition of rainfall information is of great significance for preventing floods, guiding agricultural production, and ensuring urban drainage safety. Traditional rainfall measurement devices mostly use tipping bucket sensors or electronic flow meters. However, these devices have revealed some shortcomings in practical applications and cannot meet the high precision, real-time performance, and low cost requirements of modern hydrological monitoring.

[0003] First, the measurement accuracy of traditional devices is limited. Tilting bucket sensors, due to their complex structure, are easily blocked by impurities, leading to increased measurement errors. Electronic flow meters, on the other hand, are susceptible to environmental interference; changes in temperature and humidity can affect their measurement accuracy. These shortcomings make traditional devices particularly unsuitable for harsh weather conditions, making it difficult to provide reliable rainfall data.

[0004] Secondly, traditional devices lack real-time alarm functionality. In the event of sudden heavy rainfall, manual data reading is clearly insufficient for timely warnings, leading to delayed emergency response and increasing disaster risk. To compensate for this deficiency, some improved devices have introduced electronic alarm systems, but these are often difficult to popularize due to high costs and complex maintenance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the complex structure of traditional tipping bucket rainwater monitoring devices, which are easily blocked by impurities, leading to increased measurement errors. The invention provides a rainwater monitoring and alarm device to solve these problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rainfall monitoring and alarm device includes an outer detection cylinder with an open top. An inner detection cylinder is vertically arranged inside the outer detection cylinder. The bottom of the inner detection cylinder has several through holes connecting the inner detection cylinder and the outer detection cylinder. A detection funnel is located at the top of the inner detection cylinder, and an electrode assembly is arranged inside the detection funnel. The electrode assembly is connected to an alarm component on the outside of the outer detection cylinder via wires. An installation hole is provided on the side wall of the inner detection cylinder above the detection funnel. An overflow pipe is fixedly installed in the installation hole. One end of the overflow pipe extends into the funnel, and the other end extends to the bottom of the outer detection cylinder.

[0008] A further improvement to this technical solution is that the outer cylinder for detection is made of a transparent or semi-transparent material.

[0009] A further improvement to this technical solution is that a rainfall scale is set on the outer wall of the detection cylinder.

[0010] A further improvement to this technical solution is that a sealing layer is provided between the overflow pipe and the mounting hole of the inner cylinder.

[0011] A further improvement to this technical solution is that the alarm component includes an audible and visual alarm, a capacitor, and a power supply. The positive terminal of the power supply is connected to the first terminal of the audible and visual alarm through the capacitor, the negative terminal of the power supply is connected to the first terminal of the electrode assembly, and the second terminal of the electrode assembly is connected to the second terminal of the audible and visual alarm.

[0012] A further improvement to this technical solution is that the electrode assembly includes a first electrode and a second electrode. The first electrode and the second electrode are installed on the inner wall of the detection funnel at two locations at a preset distance from the bottom of the detection funnel. The first electrode is connected to the negative terminal of the power supply, and the second electrode is connected to the second end of the audible and visual alarm.

[0013] A further improvement to this technical solution is that both the first electrode and the second electrode are graphite electrodes.

[0014] A further improvement to this technical solution is that the electrode assembly includes a mounting bracket and a detection electrode. The mounting bracket is horizontally positioned inside the detection funnel, and the detection electrode is mounted inside the detection funnel via the mounting bracket. There is no contact between the detection electrode and the inner wall of the funnel. One end of the detection electrode is connected to the negative terminal of the power supply, and the other end of the detection electrode is connected to the second terminal of the audible and visual alarm.

[0015] The beneficial effects of this utility model are as follows:

[0016] Improving measurement accuracy: This invention avoids the problem of impurities easily getting stuck in tipping bucket sensors due to their complex structure by combining mechanical structure with electrical signals. It also overcomes the shortcomings of electronic flow meters that are easily affected by environmental interference (such as changes in temperature and humidity). Through the synergistic effect of the double-cylinder overflow structure and electrode assembly, accurate measurement of rainwater volume is achieved, improving the accuracy and reliability of the data.

[0017] Real-time alarm functionality: Traditional devices lack real-time alarm capabilities, making it difficult to provide timely warnings of sudden heavy rainfall. In this technical solution, the electrode assembly ensures that when rainwater accumulates to a certain height, the circuit is quickly activated, triggering the alarm component to issue an audible and visual alarm. This design not only improves alarm response speed but also provides immediate warnings to relevant personnel, buying valuable time for emergency response and effectively reducing disaster risks.

[0018] Furthermore, the design principle of this utility model is reliable, the structure is simple, and it has a very wide range of application prospects.

[0019] It is evident that this utility model has outstanding substantive features and significant progress compared with the prior art, and the beneficial effects of its implementation are also obvious. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the device.

[0022] 110 is the outer detection cylinder, 111 is the through hole, 120 is the inner detection cylinder, 130 is the detection funnel, 140 is the electrode assembly, 151 is the audible and visual alarm, 152 is the capacitor, 153 is the power supply, 160 is the overflow pipe, and 170 is the rainfall scale. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0025] like Figure 1 As shown, this utility model provides a rainfall monitoring and alarm device, including an outer detection cylinder 110 with an open top. An inner detection cylinder 120 is vertically arranged inside the outer detection cylinder 110. The bottom end of the inner detection cylinder 120 has several through holes 111 connecting the inner detection cylinder 120 and the outer detection cylinder 110. A detection funnel 130 is arranged at the top of the inner detection cylinder 120. An electrode assembly 140 is arranged inside the detection funnel 130 and is connected to an alarm assembly outside the outer detection cylinder 110 via wires. An installation hole is provided on the side wall of the inner detection cylinder 120 above the detection funnel 130. An overflow pipe 160 is fixedly installed in the installation hole. One end of the overflow pipe 160 extends into the funnel, and the other end extends to the bottom of the outer detection cylinder 110.

[0026] This invention avoids the problem of impurities susceptibility in tipping bucket sensors due to their complex structure by combining mechanical structure with electrical signals. It also overcomes the susceptibility of electronic flow meters to environmental interference (such as temperature and humidity changes). Through the synergistic effect of the dual-cylinder overflow structure and electrode assembly 140, accurate measurement of rainfall is achieved, improving the accuracy and reliability of the data.

[0027] To facilitate direct observation of rainfall by monitoring personnel, the outer detection cylinder 110 is made of transparent or semi-transparent materials, such as transparent PVC or polymer materials with semi-transparent properties. This design allows monitoring personnel to clearly observe changes in water level after rainwater enters the outer detection cylinder 110.

[0028] Meanwhile, rainfall scales 170 are installed on the outer wall of the outer detection cylinder 110. These scales, in millimeters or inches, are evenly distributed on the outer wall, extending from bottom to top, covering the entire possible range of rainfall. Monitoring personnel can visually observe changes in rainfall simply by observing the corresponding positions of the water level and the scale lines; they do not need to open the device or use other tools. This design greatly simplifies the monitoring process and improves monitoring efficiency.

[0029] In one specific embodiment of this technical solution, to ensure the sealing between the overflow pipe 160 and the detection inner cylinder 120 and prevent rainwater leakage from the mounting hole (to improve detection accuracy), a sealing layer is provided between the overflow pipe 160 and the mounting hole of the detection inner cylinder 120. This sealing layer can be made of rubber sealing rings, silicone sealing gaskets, or other sealing materials with good elasticity and water resistance.

[0030] To ensure timely alarm triggering when rainfall reaches a preset threshold, the device incorporates a circuit connection for the alarm component. Specifically, the alarm component comprises three main parts: an audible and visual alarm 151, a capacitor 152, and a power supply 153. In the circuit connection, the positive terminal of the power supply 153 is connected to the first terminal of the audible and visual alarm 151 via the capacitor 152, effectively stabilizing the current and preventing damage to the alarm 151 due to excessive instantaneous current. Simultaneously, the negative terminal of the power supply 153 is directly connected to the first terminal of the electrode assembly 140. The second terminal of the electrode assembly 140 is then connected to the second terminal of the audible and visual alarm 151.

[0031] When rainwater accumulates in the detection funnel 130 and touches the electrode assembly 140, the circuit is quickly activated. At this time, the power supply 153 provides stable power to the audible and visual alarm 151 through the capacitor 152, causing it to immediately emit an audible and visual alarm signal. This design not only ensures the timeliness of the alarm but also greatly improves its accuracy and reliability.

[0032] On one hand, the electrode assembly 140 may include a first electrode and a second electrode, which are installed on the inner wall of the detection funnel 130 at two points at a preset distance from the bottom of the detection funnel 130. The first electrode is connected to the negative terminal of the power supply 153, and the second electrode is connected to the second end of the audible and visual alarm 151. This preset distance is determined based on actual usage requirements and rainfall thresholds to ensure accurate alarm triggering when rainwater reaches this height.

[0033] Graphite is used as the electrode material to ensure the stability and conductivity of the electrodes. Graphite electrodes not only have good conductivity but also high corrosion resistance and wear resistance, enabling them to maintain long-term stable operation in harsh rainy environments.

[0034] In another embodiment of this technical solution, the electrode assembly 140 includes a mounting bracket and a detection electrode. The mounting bracket is horizontally positioned within the detection funnel 130, its design being stable and not obstructing the natural flow of rainwater. The detection electrode is mounted at a predetermined position within the detection funnel 130 via the mounting bracket, ensuring no direct contact with the inner wall of the funnel, thereby avoiding errors or malfunctions caused by contact. One end of the detection electrode is connected to the negative terminal of the power supply 153 via a wire, while the other end is connected to the second terminal of the audible and visual alarm 151. This connection method ensures that when rainwater accumulates to a certain height and touches the detection electrode, the circuit can be quickly activated, thereby triggering the audible and visual alarm.

[0035] The device operates on the following principle: Its main components include an outer detection cylinder 110, an inner detection cylinder 120 (including an overflow pipe 160), an electrode assembly 140, and an alarm assembly. The device begins with rainwater collection. The outer detection cylinder 110, as the top opening of the device, primarily collects rainwater falling from the sky. The outer cylinder is made of transparent or semi-transparent material, and its outer wall is marked with rainfall scale 170, allowing monitoring personnel to visually observe the accumulation of rainwater and the approximate rainfall amount. As rainwater accumulates, it flows through the detection funnel 130 into the inner detection cylinder 120. The inner detection cylinder 120 has several through holes 111 on its wall, connecting it to the outer detection cylinder 110. This design ensures a balance of water levels between the inner and outer cylinders, thereby improving the accuracy of rainfall measurement. An overflow pipe 160 is provided on the side wall of the inner detection cylinder 120 above the detection funnel 130. One end of the overflow pipe 160 extends into the funnel, and the other end extends to the bottom of the outer detection cylinder 110. When rainwater accumulates in the detection funnel 130 to a first preset height, the water in the detection funnel 130 is drained into the outer detection cylinder 110 through the overflow pipe 160 (using the siphon principle), preventing the detection funnel 130 from overloading due to excessive rainwater. When rainwater accumulates in the detection funnel 130 to a second preset height (the first preset height is higher than the second preset height), it will touch the electrode assembly 140 installed at a preset position at the bottom of the detection funnel 130, thereby triggering the circuit to conduct. Specifically, when rainwater accumulates to the point of touching the electrode, the circuit will be quickly turned on. At this time, the power supply 153 provides power to the audible and visual alarm 151 through the circuit, causing it to immediately emit an audible and visual alarm signal. Alarm components typically include an audible and visual alarm 151, a capacitor 152, and a power supply 153. The addition of capacitor 152 can effectively stabilize the current and prevent damage to components in the circuit due to excessive instantaneous current.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rain monitoring alarm device, characterized by, The device includes an outer detection cylinder with an open top. An inner detection cylinder is vertically installed inside the outer detection cylinder. Several through holes are provided at the bottom of the inner detection cylinder, connecting the inner detection cylinder and the outer detection cylinder. A detection funnel is provided at the top of the inner detection cylinder, and an electrode assembly is installed inside the detection funnel. The electrode assembly is connected to an alarm component on the outside of the outer detection cylinder via wires. An installation hole is provided on the side wall of the inner detection cylinder above the detection funnel, and an overflow pipe is fixedly installed in the installation hole. One end of the overflow pipe extends into the funnel, and the other end extends to the bottom of the outer detection cylinder.

2. The rainfall monitoring and alarm device according to claim 1, characterized in that, The outer cylinder for testing is made of transparent or semi-transparent material.

3. The rainfall monitoring and alarm device according to claim 2, characterized in that, Rainfall measurements are provided on the outer wall of the outer cylinder.

4. The rainfall monitoring and alarm device according to claim 1, characterized in that, A sealing layer is provided between the overflow pipe and the mounting hole of the inner cylinder.

5. The rainfall monitoring and alarm device according to claim 1, characterized in that, The alarm assembly includes an audible and visual alarm, a capacitor, and a power supply. The positive terminal of the power supply is connected to the first terminal of the audible and visual alarm through the capacitor, the negative terminal of the power supply is connected to the first terminal of the electrode assembly, and the second terminal of the electrode assembly is connected to the second terminal of the audible and visual alarm.

6. The rainfall monitoring and alarm device according to claim 5, characterized in that, The electrode assembly includes a first electrode and a second electrode, which are installed on the inner wall of the detection funnel at two predetermined distances from the bottom of the detection funnel. The first electrode is connected to the negative terminal of the power supply, and the second electrode is connected to the second end of the audible and visual alarm.

7. The rainfall monitoring and alarm device according to claim 6, characterized in that, Both the first and second electrodes are made of graphite.

8. The rainfall monitoring and alarm device according to claim 5, characterized in that, The electrode assembly includes a mounting bracket and a detection electrode. The mounting bracket is horizontally positioned inside the detection funnel, and the detection electrode is mounted inside the detection funnel via the mounting bracket. There is no contact between the detection electrode and the inner wall of the funnel. One end of the detection electrode is connected to the negative terminal of the power supply, and the other end of the detection electrode is connected to the second terminal of the audible and visual alarm.

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