Water conservancy flood prevention early warning device

Abstract

The utility model relates to the technical field of water conservancy parameter monitoring, in particular to a water conservancy flood control early warning device, and aims to solve the problem that a rain gauge in existing water conservancy flood control early warning is high in cost. The device comprises a water level gauge and a rain gauge, the rain gauge comprises a rainfall collector, a first tipping bucket, a second tipping bucket and a switching structure, the lower end of the rainfall collector is open, and the volume of a second metering groove of the second tipping bucket is larger than that of a first metering groove of the first tipping bucket; the switching structure comprises a switching driving assembly and a drainage piece, the drainage piece has a first state and a second state, and the switching driving assembly is used for switching the drainage piece between the first state and the second state. Under the condition of small rainfall, the drainage piece is in a first state, and rainwater in the rainwater collector is drained to the first tipping bucket; and under the condition of large rainfall, the switching driving assembly is started to drive the drainage piece to be in the second state, and rainwater in the rainwater collector is drained to the second tipping bucket, so that the rainfall measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of water conservancy parameter monitoring, and specifically provides a water conservancy flood control early warning device. Background Technology

[0002] With the gradual improvement of water conservancy facilities across the country, it is possible to regulate the flow of water upstream and downstream based on the current hydrological conditions, reducing the possibility of droughts and floods downstream. In the upstream areas, flood warnings are mainly based on two parameters: water level and rainfall. Rainfall can be used to estimate the amount of water flowing into rivers in that area, and the current water level can be used to predict whether the water level will reach the warning line in a certain period of time, thus determining whether flood control measures should be taken.

[0003] Currently, rain gauges for measuring rainfall are mainly divided into siphon rain gauges, tipping bucket rain gauges, and weighing rain gauges. Weighing rain gauges are mainly suitable for solid precipitation (such as hail and snow), while siphon rain gauges and tipping bucket rain gauges are suitable for measuring rainwater. Among them, the measurement accuracy of tipping bucket rain gauges is related to the size of the tipping bucket. For light rainfall, a smaller capacity tipping bucket provides higher measurement accuracy, while for heavy rainfall, a larger capacity tipping bucket provides higher measurement accuracy.

[0004] With rising global temperatures and increasing frequency of extreme rainfall events, two tipping bucket rain gauges are typically installed to ensure accurate rainfall measurement: one with a large capacity and the other with a small capacity. A rainfall threshold is set; rainfall below this threshold is measured using the smaller capacity tipping bucket, while rainfall above the threshold is measured using the larger capacity tipping bucket. However, this approach increases equipment cost and installation space requirements.

[0005] Therefore, there is an urgent need for a flood control early warning device to accurately measure rainfall in the field of flood control and solve the problem of high cost of rain gauges in current flood control early warning systems. Utility Model Content

[0006] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of high cost of rain gauges in existing water conservancy flood control early warning systems.

[0007] In a first aspect, this utility model provides a water conservancy flood control early warning device, including a water level gauge and a rain gauge. The rain gauge includes: a base; an upper housing; a rain collector, funnel-shaped, fixed to the housing, with an opening at its lower end; a first tipping bucket rotatably connected to the base, including a first partition plate that divides the first tipping bucket into two identical and symmetrical first metering slots; and a second tipping bucket rotatably connected to the base, including a second partition plate that divides the second tipping bucket into two identical and symmetrical second metering slots, the volume of which is greater than [missing information]. The volume of the first metering tank; the switching structure includes a switching drive assembly and a flow guide, the flow guide being arc-shaped and located below the opening, the flow guide being rotatably connected to the upper housing, the flow guide having a first state and a second state, the switching drive assembly being used to switch the flow guide between the first state and the second state; when the flow guide is in the first state, the flow guide can guide the water flowing out of the opening to the first tipping bucket; when the flow guide is in the second state, the flow guide can guide the water flowing out of the opening to the second tipping bucket.

[0008] In the specific implementation of the above-mentioned water conservancy flood control early warning device, the first state is the natural state of the diversion component.

[0009] In a specific embodiment of the above-mentioned flood control early warning device, the length from the rotating shaft of the diversion component to the end of the diversion component facing the first tipping bucket is greater than the length from the rotating shaft of the diversion component to the end of the diversion component facing the second tipping bucket.

[0010] In a specific embodiment of the aforementioned flood control and early warning device, a counterweight is provided below the end of the diversion component facing the first tipping bucket.

[0011] In a specific embodiment of the aforementioned flood control and early warning device, the switching drive assembly includes a drive component, a connecting rope, a pulley, a connecting rod, a magnetic chuck, and an electromagnet. The electromagnet is fixed to the upper housing. The connecting rod and the pulley are both rotatably connected to the upper housing. The magnetic chuck is fixed to the end of the connecting rod near the electromagnet. One end of the connecting rope is connected to the end of the connecting rod away from the electromagnet. The other end of the connecting rope passes around the pulley and is connected to the end of the diverting component facing the first tipping bucket. When the electromagnet is energized, it drives the connecting rod to rotate, which in turn drives the diverting component to rotate via the connecting rope, switching from the first state to the second state. When the electromagnet is de-energized, the diverting component switches from the second state to the first state under the action of gravity.

[0012] In a specific embodiment of the above-mentioned flood control early warning device, a first support is provided on the base, a first magnetic field generator is provided on the first support, a first reed switch is provided on the first tipping bucket, and the first reed switch is energized after passing through the magnetic field generated by the first magnetic field generator.

[0013] In a specific embodiment of the above-mentioned flood control early warning device, a second support is provided on the base, a second magnetic field generator is provided on the second support, a second reed switch is provided on the second tipping bucket, and the second reed switch is energized after passing through the magnetic field generated by the second magnetic field generator.

[0014] In a specific embodiment of the aforementioned flood control early warning device, the flood control early warning device is installed at a water conservancy station.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] This utility model provides a water conservancy flood control early warning device including a water level gauge and a rain gauge. The rain gauge includes a base, an upper shell, a rain collector, a first tipping bucket, a second tipping bucket, and a switching structure. The rain collector has an opening at its lower end. The volume of the second metering groove of the second tipping bucket is larger than the volume of the first metering groove of the first tipping bucket. The switching structure includes a switching drive assembly and a diverting element. The diverting element has a first state and a second state. The switching drive assembly is used to switch the diverting element between the first state and the second state. When the diverting element is in the first state, it can divert the water flowing out of the opening to the first tipping bucket. When the diverting element is in the second state, it can divert the water flowing out of the opening to the second tipping bucket. In the case of light rainfall, the switching drive assembly is turned off, the diverting element is in the first state, and the rainwater in the rainwater collector is diverted to the first tipping bucket. The smaller capacity of the first tipping bucket is used for measurement, improving the accuracy of rainfall measurement. In cases of heavy rainfall, the drive component is switched on and the drive diversion component is in the second state, diverting rainwater from the rainwater collector to the second tipping bucket. The larger capacity of the second tipping bucket is used for measurement, which reduces the tipping frequency and the amount of rainwater that is not detected during the tipping process, thereby improving the accuracy of rainfall measurement. Attached Figure Description

[0017] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the rain gauge in the first state of the flood warning device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the rain gauge in the second state of the flood warning device provided by this utility model;

[0020] Figure 3 yes Figure 2 A schematic diagram of direction AA in the diagram.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 11. First support; 12. Second support; 13. First tipping bucket; 131. First reed switch; 132. First partition; 14. Second tipping bucket; 141. Second reed switch; 15. First magnetic field generator; 16. Second magnetic field generator; 2. Upper housing; 3. Switching drive assembly; 32. Connecting rope; 33. Pulley; 34. Connecting rod; 35. Magnetic suction component; 36. Electromagnet; 4. Drainage component. Detailed Implementation

[0023] Preferred embodiments of the present disclosure will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present disclosure and are not intended to limit the scope of protection of the present disclosure.

[0024] It should be noted that in the description of this disclosure, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0026] This utility model provides a water conservancy flood control early warning device, which is installed at a water conservancy station. It includes a water level gauge and a rain gauge. Based on the rainfall measured by the rain gauge, the amount of water flowing into the river in the area can be estimated. Based on the current water level, it can be estimated whether the water level will reach the warning line after a period of time, thereby deciding whether to take flood control measures in advance.

[0027] like Figure 1 and Figure 2As shown, the rain gauge includes a base 1 and an upper housing 2, with the upper housing 2 covering the base 1. A rain collector 21 is disposed inside the upper housing 2. The rain collector 21 is fixed in the middle of the upper housing 2, is funnel-shaped, and has an opening at the lower end to collect rainwater as much as possible.

[0028] like Figure 1 As shown, a first support 11 and a second support 12 are provided on the base 1, and the first support 11 and the second support 12 are fixed above the base 1. A first tipping bucket 13 is rotatably connected to the first support 11, and the pivot of the first tipping bucket 13 is located in the middle of the first tipping bucket 13 to maintain balance at both ends. Figure 3 As shown, a first tipping bucket 13 is provided with a first partition 132, which divides the first tipping bucket 13 into two identical and symmetrical first metering slots. A second tipping bucket 14 is rotatably connected to the second support 12. The pivot of the second tipping bucket 14 is located in the middle of the second tipping bucket 14 to maintain the balance at both ends. A second partition is provided on the second tipping bucket 14, which divides the second tipping bucket 14 into two identical and symmetrical second metering slots. The volume of the second metering slot is larger than that of the first metering slot. Therefore, the first tipping bucket 13 is mainly used when the rainfall is light, while the second tipping bucket 14 is mainly used when the rainfall is heavy.

[0029] Regarding the counting method of the first tipping bucket 13, in the example of this utility model, as follows: Figure 1 and Figure 2 As shown, a first magnetic field generator 15 is installed on the first support 11, and a first reed switch 131 is installed on the first tipping bucket 13. The first reed switch 131 is energized after passing through the magnetic field generated by the first magnetic field generator 15. The first magnetic field generator 15 can be an electromagnet or a permanent magnet. During the process of measuring rainfall in the first tipping bucket 13, the water flowing out of the opening can enter one of the first measuring troughs. As the water volume in the first measuring trough gradually increases, it can break the balance of the first tipping bucket 13. The first tipping bucket 13 flips, causing the other first measuring trough to face the opening and emptying the water in the first measuring trough. This process is repeated. Each time the first tipping bucket 13 flips, the first reed switch 131 is energized by the magnetic field generated by the first magnetic field generator 15, generating a pulse signal. This records the number of flips of the first tipping bucket 13, thus achieving the purpose of measuring rainfall.

[0030] Regarding the counting method of the second tipping bucket 14, in this example, it is the same as the counting method of the first tipping bucket 13. Specifically, a second magnetic field generator 16 is provided on the second support 12, and a second reed switch 141 is provided on the second tipping bucket 14. The second reed switch 141 is energized after passing through the magnetic field generated by the second magnetic field generator 16. The first magnetic field generator 15 and the second magnetic field generator 16 can be configured as one, that is, the first tipping bucket 13 and the second tipping bucket 14 share a single magnetic field generator.

[0031] Of course, the counting method for the first tipping bucket 13 and the second tipping bucket 14 can also be other structures. For example, a pressure sensor can be set at the bottom of one end of the tipping bucket, and the count can be made when the tipping bucket flips and hits the pressure sensor once.

[0032] A switching mechanism is provided below the rain collector 21, such as... Figure 1 and Figure 2 As shown, the switching structure includes a switching drive assembly 3 and a flow guide 4. The flow guide 4 is rotatably connected to the upper housing 2, located below the opening, and is arc-shaped, with a flow channel on the side facing the opening. The flow guide 4 has a first state and a second state. In the first state, the flow guide 4 can guide the water flowing out of the opening to the first tipping bucket 13; in the second state, the flow guide 4 can guide the water flowing out of the opening to the second tipping bucket 14. The switching drive assembly 3 is used to switch the flow guide 4 between the first state and the second state. Integrating the first tipping bucket 13 and the second tipping bucket 14 into a rain gauge, and using the switching drive assembly 3 to change the state of the flow guide 4, thereby changing the direction of rainwater flow, using the first tipping bucket 13 for measurement when rainfall is low, and using the second tipping bucket 14 for measurement when rainfall is low, can effectively improve the accuracy of rainfall measurement.

[0033] In this example, the first tipping bucket 13 is first used to measure rainfall. As the rainfall gradually increases, the tipping frequency of the first tipping bucket 13 increases to a first set value. Then, the switching drive component 3 is activated to switch the diverting member 4 from the first state to the second state, thereby improving the measurement accuracy under heavy rainfall conditions. Furthermore, during the measurement of rainfall using the second tipping bucket 14, if the rainfall gradually decreases, causing the tipping frequency of the second tipping bucket 14 to decrease to a second set value, the switching component is used to switch the diverting member 4 from the second state to the first state, thereby improving the measurement accuracy under light rainfall conditions.

[0034] To simplify the structure of the switching drive assembly 3, the first state of the guide member 4 can be designed as its natural state, i.e., the guide member 4 is in the first state when the switching drive assembly 3 is not activated. Specifically, the length from the rotation axis of the guide member 4 to the end of the guide member 4 facing the first tipping bucket 13 is greater than the length from the rotation axis of the guide member 4 to the end of the guide member 4 facing the second tipping bucket 14. That is, the center of gravity of the guide member 4 is located near the first tipping bucket 13 on the rotation axis, and the guide member 4 is in the first state by its own weight. In other embodiments, a counterweight can also be provided below the end of the guide member 4 facing the first tipping bucket 13, and the weight of the counterweight can drive the guide member 4 to rotate and enter the first state.

[0035] In a specific embodiment of this utility model, the switching drive assembly 3 includes a connecting rope 32, a pulley 33, a connecting rod 34, a magnetic chuck 35, and an electromagnet 36. The electromagnet 36 is fixed to the upper housing 2. The connecting rod 34 and the pulley 33 are both rotatably connected to the upper housing 2. The magnetic chuck 35 is fixed to the end of the connecting rod 34 near the electromagnet 36. One end of the connecting rope 32 is connected to the end of the connecting rod 34 away from the electromagnet 36, and the other end of the connecting rope 32 passes around the pulley 33 and is connected to the end of the diverter 4 facing the first tipping bucket 13. When the electromagnet 36 is energized, it drives the connecting rod 34 to rotate, which in turn drives the diverter 4 to rotate via the connecting rope 32, switching from the first state to the second state. When the electromagnet 36 is de-energized, the diverter 4 switches from the second state to the first state under the action of gravity.

[0036] In summary, the working principle of the flood control early warning device provided by this utility model is as follows:

[0037] In the case of light rainfall, the switching drive component 3 is turned off, and the diversion component 4 is in the first state, diverting the rainwater in the rainwater collector to the first tipping bucket 13. The smaller capacity of the first tipping bucket 13 is used for measurement, thereby improving the accuracy of rainfall measurement.

[0038] In the event of heavy rainfall, the switching drive component 3 is activated, and the drive diverter 4 is in the second state, diverting the rainwater in the rainwater collector to the second tipping bucket 14. The larger capacity of the second tipping bucket 14 is used for measurement, which reduces the tipping frequency and the amount of rainwater that is not detected during the tipping process, thereby improving the accuracy of rainfall measurement.

[0039] Finally, based on the rainfall measured by the rain gauge, the amount of water flowing into the river in that area can be estimated. Based on the current water level, it can be estimated whether the water level will reach the warning line after a period of time, thereby deciding whether to take flood prevention measures in advance.

[0040] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water conservancy flood control early warning device, characterized in that, Includes a water level gauge and a rain gauge, wherein the rain gauge includes: Base (1); Upper shell (2); Rain collector (21), which is funnel-shaped, is fixed to the upper housing (2) and has an opening at its lower end; The first tipping bucket (13) is rotatably connected to the base (1) and includes a first partition plate that divides the first tipping bucket (13) into two identical and symmetrical first metering slots. The second tipping bucket (14) is rotatably connected to the base (1) and includes a second partition. The second partition divides the second tipping bucket (14) into two identical and symmetrical second metering slots. The volume of the second metering slot is greater than the volume of the first metering slot. The switching structure includes a switching drive assembly (3) and a drain (4). The drain (4) is located below the opening and is rotatably connected to the upper housing (2). The drain (4) has a first state and a second state. The switching drive assembly (3) is used to switch the drain (4) between the first state and the second state. When the diverting component (4) is in the first state, the diverting component (4) can divert the water flowing out of the opening to the first tipping bucket (13); when the diverting component (4) is in the second state, the diverting component (4) can divert the water flowing out of the opening to the second tipping bucket (14).

2. The water conservancy flood control early warning device according to claim 1, characterized in that, The first state is the natural state of the drainage element (4).

3. The water conservancy flood control early warning device according to claim 2, characterized in that, The length of the rotation axis of the diverting member (4) to the end of the diverting member (4) facing the first tipping bucket (13) is greater than the length of the rotation axis of the diverting member (4) to the end of the diverting member (4) facing the second tipping bucket (14).

4. The water conservancy flood control early warning device according to claim 2, characterized in that, The diverting component (4) is provided with a counterweight below the end facing the first tipping bucket (13).

5. The flood control early warning device according to claim 2, characterized in that, The switching drive assembly (3) includes a connecting rope (32), a pulley (33), a connecting rod (34), a magnetic chuck (35), and an electromagnet (36). The electromagnet (36) is fixed to the upper housing (2). The connecting rod (34) and the pulley (33) are both rotatably connected to the upper housing (2). The magnetic chuck (35) is fixed to one end of the connecting rod (34) near the electromagnet (36). One end of the connecting rope (32) is connected to one end of the connecting rod (34) away from the electromagnet (36). The other end of the connecting rope (32) passes around the pulley (33) and is connected to one end of the guide (4) facing the first tipping bucket (13). When the electromagnet (36) is energized, it drives the connecting rod (34) to rotate, and then drives the draining component (4) to rotate through the connecting rope (32), switching from the first state to the second state; when the electromagnet (36) is de-energized, the draining component (4) switches from the second state to the first state under the action of gravity.

6. The water conservancy flood control early warning device according to claim 1, characterized in that, The base (1) is provided with a first support (11), the first support (11) is provided with a first magnetic field generator (15), the first tipping bucket (13) is provided with a first reed switch (131), and the first reed switch (131) is energized after passing through the magnetic field generated by the first magnetic field generator (15).

7. The flood control early warning device according to claim 1, characterized in that, The base (1) is provided with a second bracket (12), the second bracket (12) is provided with a second magnetic field generator (16), the second tipping bucket (14) is provided with a second reed switch (141), and the second reed switch (141) is energized after passing through the magnetic field generated by the second magnetic field generator (16).

8. The flood control early warning device according to claim 1, characterized in that, The water conservancy flood control early warning device is installed at the water conservancy station.

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