A float-activated siphon-type automatic water measuring device

Abstract

The application discloses a kind of float trigger siphon automatic measuring water quantity device, including water storage container;Water storage container is provided with guide shaft, float being arranged on guide shaft and being slidable along it, U-shaped siphon, U-shaped pipe inlet, U-shaped pipe outlet, upper one-way valve piece, lower one-way valve piece, float, turbine water flow sensor, pulse counter and data acquisition system;The inlet of U-shaped siphon is connected with turbine water flow sensor outlet by U-shaped pipe inlet, the outlet of U-shaped siphon is connected with aperture drain by U-shaped pipe outlet, and the water outlet is connected with turbine water flow sensor inlet;Lower one-way valve piece is located in water outlet and closes or opens water outlet, and upper one-way valve piece closes or opens the bottom end of float.The device can accurately measure water flow, and the measuring process does not require human operation, can realize device automatic networking observation, both reduces artificial workload, and avoids the influence of error of manual observation.

Description

Technical Field

[0001] This invention relates to the field of measuring equipment technology, and in particular to a float-triggered siphon-type automatic water volume measuring device. Background Technology

[0002] In scientific research such as ecology and hydrology, there is a need to monitor small water volumes, such as stem flow, canopy interception, and water in small catchment areas. These small water volumes increase with rainfall but are not continuous and follow a predictable pattern. Currently, the measurement of these water volumes is mainly done by setting up a large number of buckets for collection, requiring manual on-site measurement and data collection. The collection points are widely distributed, resulting in high labor intensity. There are no mature products for automatic measurement of small water volumes. One available device is a modified tipping bucket rain gauge, replacing the original small tipping bucket (3.14ml) with a larger tipping bucket (50ml or 100ml). The disadvantages of tipping bucket measuring devices are that the water entering the tipping bucket must be limited; otherwise, some water will escape outside the counting range, leading to measurement errors. Furthermore, the flow-limiting orifice is easily clogged by debris, making maintenance cumbersome. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a float-triggered siphon-type automatic water volume measurement device.

[0004] This invention is achieved through the following technical solution: a float-triggered siphon-type automatic water volume measurement device, comprising a water storage container; the water storage container is equipped with a float, a U-shaped siphon tube, a U-shaped tube inlet, a U-shaped tube outlet, an upper one-way valve plate, a lower one-way valve plate, a float, and a turbine water flow sensor; the top of the water storage container has a water inlet, the bottom has a water outlet, and the bottom has a notch for drainage connecting to the outside; a filter screen is provided at the water inlet; the U-shaped siphon tube opens downwards, the inlet of the U-shaped siphon tube is connected to the outlet of the turbine water flow sensor through the U-shaped tube inlet, the outlet of the U-shaped siphon tube is connected to the notch for drainage through the U-shaped tube outlet, and the outlet is connected to the... The turbine water flow sensor inlet is connected; the upper one-way valve is connected to the float, and the lower one-way valve is fixed to the float via a second connecting rod. The lower one-way valve is located inside the outlet and closes or opens the outlet. A guide shaft is installed at the bottom of the water storage container, and the float is mounted on the guide shaft and can slide up and down along it. The float is a hollow cylinder with its upper and lower sides extending through it. The float is located below the float, and the upper one-way valve closes or opens the bottom of the float as the water level rises or falls. A pulse counter is provided outside the water storage container to accumulate and count the number of pulses output by the turbine water flow sensor, and the pulse counter is connected to a data acquisition system.

[0005] This device utilizes the coordinated control of a float, a buoy, and two one-way valves to collect water flowing into a storage container, raising the water level. As the water level rises above the top of the U-shaped siphon and reaches a set height, a siphon effect is triggered, discharging water from the storage container. The water is pressurized by the siphon, driving a turbine flow sensor to output pulse counts, which are transmitted by a pulse counter to a data acquisition system for data collection and processing. A guide shaft provides a track for the float's movement; the upper one-way valves are used to close or open the bottom of the float by the raising and lowering of the buoy.

[0006] An upper retaining ring is installed on the inner side of the lower end of the float. An upper one-way valve plate is fixed to the float via a first connecting rod. The upper one-way valve plate is located below the upper retaining ring, and its diameter is larger than the inner diameter of the upper retaining ring. The float opens downwards to form a cavity. A lower retaining ring is provided inside the outlet. A fixed shaft is installed on the second connecting rod, and its middle part is fixed to the second connecting rod. The lower one-way valve plate is installed at the lower end of the fixed shaft, and its upper end is inserted into the cavity of the float. The lower end of the fixed shaft passes through the lower retaining ring, and the lower one-way valve plate is located below it. Its diameter is larger than the inner diameter of the lower retaining ring. When the upper one-way valve plate rises and presses against the upper retaining ring, the distance between the inner top surface of the float and the upper end of the fixed shaft is less than the length of the float cavity. This distance between the upper end of the fixed shaft and the inner top surface of the float ensures that the float will not escape the constraint of the fixed shaft, preventing the float from drifting to other positions. The upper check valve disc has a diameter larger than the inner diameter of the upper retaining ring, ensuring a tight seal. Similarly, the lower check valve disc has a diameter larger than the inner diameter of the lower retaining ring, ensuring a tight seal when the designated water level is reached, preventing gravity flow and overflow. This also prevents the lower check valve disc from detaching from the lower retaining ring and provides a stable range of buoyancy control for the float.

[0007] The second connecting rod is an inverted U-shaped frame with its opening facing upwards. The two sides of the float are fixed to the vertical sections on both sides of the inverted U-shaped frame, and the middle of the fixing shaft is fixed to the horizontal section of the inverted U-shaped frame. The inverted U-shaped frame not only stably fixes the float and the lower one-way valve plate, but also restricts the buoyancy range of the float, preventing it from deviating from the set position, so that the upper one-way valve plate can accurately close the bottom of the float.

[0008] The guide shaft is provided in two parts, which are respectively set on both sides of the float. The lower end of the guide shaft is fixed to the bottom of the water storage container by a fixing nut, and the float is located between the two guide shafts.

[0009] When the float drives the lower one-way valve to close the lower retaining ring, the height of the top of the float is 3cm higher than the top of the U-shaped siphon.

[0010] The water storage container is provided with a container cover on the top, the water inlet is located on the container cover, and the filter screen is covered on the water inlet.

[0011] The water storage container includes an upper part and a lower part separated by a shell. Water is stored in the upper part of the water storage container. The lower part of the water storage container is separated from the upper part by the shell. The U-shaped tube inlet, U-shaped tube outlet, turbine water flow sensor, and water outlet are all located in the lower part of the water storage container. The top sides of the U-shaped tube inlet, U-shaped tube outlet, and water outlet all extend into the upper part of the water storage container and are higher than the upper side of the shell between the upper and lower parts. The lower end of the guide shaft is fixed to the shell between the upper and lower parts of the water storage container by a fastening nut.

[0012] An mounting base is installed on the outer side of the bottom of the water storage container. The pulse counter and the notch drain outlet are both located inside the mounting base. The mounting base also contains a built-in battery that is connected to and charges the pulse counter. The pulse counter is connected to a data cable, and the built-in battery is connected to a charging cable. An aviation waterproof connector is located next to the notch drain outlet, and the data cable and the charging cable pass through the aviation waterproof connector.

[0013] The data acquisition system includes a data acquisition unit, a display, and a network-connected DTU wireless transmission module. The pulse counter is connected to the data acquisition unit via a data cable, and the DTU wireless transmission module is connected to the data acquisition unit and the display, respectively.

[0014] The filter screen is a cylindrical structure with several filter holes on its sidewalls. This cylindrical structure allows for more efficient filtration.

[0015] Compared with existing technologies, the advantages of this invention are as follows: This device can accurately measure water flow in scientific research involving small volumes of water. The measurement process requires no manual operation and can achieve automated, networked observation, reducing manual workload and avoiding errors caused by manual observation. Simultaneously, this device has low energy consumption, large inlet and outlet diameters, is not easily clogged, and is simple to maintain; it can provide accurate water volume data for scientific research in ecology, hydrology, and other fields. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of an embodiment of the present invention after longitudinal sectioning;

[0017] Figure 2 This is a second schematic diagram of the structure after longitudinal sectioning according to an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of an embodiment of the present invention after being cut along the central axis;

[0019] Figure 4This is a perspective view taken from the main view direction in an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of an embodiment of the present invention cut longitudinally along a certain surface;

[0021] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention cut longitudinally along another plane;

[0022] Figure 7 This is a schematic diagram of the structure after removing the water storage container in an embodiment of the present invention;

[0023] Figure 8 This is a perspective view of an embodiment of the present invention after the water storage container has been removed;

[0024] Figure 9 for Figure 7 A schematic diagram of the structure after removing the lower half of the water storage container;

[0025] Figure 10 for Figure 9 Perspective view;

[0026] Figure 11 for Figure 9 A schematic diagram of the structure after removing the turbine water flow sensor and the U-shaped pipe inlet and outlet;

[0027] Figure 12 for Figure 11 Perspective view;

[0028] Figure 13 This is a schematic diagram of the structure of two one-way valve plates and a float in an embodiment of the present invention;

[0029] Figure 14 for Figure 13 Perspective view.

[0030] The following are the meanings of the labels in the attached diagram: 1. Inlet; 2. Filter screen; 3. Water storage container; 4. U-shaped siphon; 5. Float; 6. Guide shaft; 7. Upper one-way valve; 8. First connecting rod; 9. Float; 10. Second connecting rod; 11. Lower one-way valve; 12. U-shaped pipe inlet; 13. U-shaped pipe outlet; 14. Turbine water flow sensor; 15. Pulse counter; 16. Built-in battery; 17. Outlet; 18. Notch drain outlet; 19. Aviation waterproof connector; 20. Fixing nut; 21. Upper retaining ring; 22. Lower retaining ring; 23. Fixing shaft; 24. Mounting base. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] Example

[0033] See Figures 1 to 14 This is an automatic water volume measuring device triggered by a float 5 and a siphon, comprising a water storage container 3; the water storage container 3 is equipped with a float 5, a U-shaped siphon 4, a U-shaped inlet 12, a U-shaped outlet 13, an upper one-way valve 7, a lower one-way valve 11, a float 9, and a turbine water flow sensor 14; the water storage container 3 has an inlet 1 at the top, an outlet 17 at the bottom, and a notch drain 18 at the bottom communicating with the outside; a filter screen 2 is installed at the inlet 1; the U-shaped siphon 4 opens downwards, the inlet of the U-shaped siphon 4 is connected to the outlet of the turbine water flow sensor 14 through the U-shaped inlet 12, the outlet of the U-shaped siphon 4 is connected to the notch drain 18 through the U-shaped outlet 13, and the outlet 17 is connected to the turbine water flow sensor 14. The turbine water flow sensor 14 is connected to the inlet; the upper one-way valve 7 is connected to the float 9, and the lower one-way valve 11 is fixed to the float 5 by the second connecting rod 10. The lower one-way valve 11 is located inside the outlet 17 and closes or opens the outlet 17; a guide shaft 6 is installed at the bottom of the water storage container 3, and the float 5 is set on the guide shaft 6 and can slide up and down along it; the float 5 is a hollow cylinder with its upper and lower sides running through it. The float 9 is located below the float 5. As the water level rises and falls, the upper one-way valve 7 closes or opens the bottom of the float 5; a pulse counter 15 is provided outside the water storage container 3 for accumulating and counting the number of pulses output by the turbine water flow sensor 14. The pulse counter 15 is connected to a data acquisition system.

[0034] This device utilizes the coordinated control of the float 5, float 9, and two one-way valves to collect water flowing into the water storage container 3, raising the water level in the container. As the water level rises above the top of the U-shaped siphon pipe 4 and reaches a set height, a siphon effect is triggered, discharging water from the storage container 3. The water is pressurized by the siphon, driving the turbine water flow sensor 14 to output pulse counts, which are transmitted by the pulse counter 15 to the data acquisition system for collection and processing. The guide shaft 6 provides a track for the float 5 to move; the upper one-way valve 7 is used to close or open the bottom of the float 5 by the raising and lowering of the float 9.

[0035] An upper retaining ring 21 is installed on the inner side of the lower end of the float 5. The upper one-way valve plate 7 is fixed to the float 9 as a whole through the first connecting rod 8. The upper one-way valve plate 7 is located below the upper retaining ring 21, and the diameter of the upper one-way valve plate 7 is larger than the inner diameter of the upper retaining ring 21. The float 9 opens downward to form a cavity. A lower retaining ring 22 is provided in the outlet 17. A fixed shaft 23 is installed on the second connecting rod 10. The middle part of the fixed shaft 23 is fixed on the second connecting rod 10. The lower one-way valve plate 11 is installed at the lower end of the fixed shaft 23. The upper end of the fixed shaft 23 is inserted into the cavity of the float 9. The lower end of the fixed shaft 23 passes through the lower retaining ring 22. The lower one-way valve plate 11 is located below the lower retaining ring 22, and the diameter of the lower one-way valve plate 11 is larger than the inner diameter of the lower retaining ring 22. When the upper one-way valve plate 7 rises and pushes against the upper retaining ring 21, the distance between the inner top surface of the float 9 and the upper end of the fixed shaft 23 is less than the length of the cavity of the float 9. The distance between the upper end of the fixed shaft 23 and the inner top surface of the float 9 is set to ensure that the float 9 will not leave the constraint range of the fixed shaft 23, preventing the float 9 from drifting to other positions. The diameter of the upper one-way valve plate 7 is larger than the inner diameter of the upper retaining ring 21, ensuring that the upper one-way valve plate 7 can tightly seal the upper retaining ring 21. The diameter of the lower one-way valve plate 11 is larger than the inner diameter of the lower retaining ring 22, ensuring that when the specified water level is reached, the lower one-way valve plate 11 can tightly seal the lower retaining ring, avoiding phenomena such as gravity flow and overflow. This prevents the lower one-way valve plate 11 from leaving the constraint of the lower retaining ring 22, and also provides a stable buoyancy constraint range for the rise and fall of the float 5.

[0036] The second connecting rod 10 is a U-shaped frame with its opening facing upwards. The float 5 is fixed on the vertical sections on both sides of the U-shaped frame, and the middle of the fixing shaft 23 is fixed on the horizontal section of the U-shaped frame. The U-shaped frame not only stably fixes the float 5 and the lower one-way valve plate 11, but also restricts the floating and sinking range of the float 9, preventing it from leaving the set position, so that the upper one-way valve plate 7 can accurately close the bottom of the float 5. In this embodiment, the float 5, the second connecting rod 10, and the lower one-way valve plate 11 are integrated into one unit, requiring no additional electrical control. Through buoyancy, the lower one-way valve plate 11 is closed by the second connecting rod 10, preventing water seepage into the water storage container 3, thereby allowing the water storage container 3 to store water and the water level to rise.

[0037] Two guide shafts 6 are provided, one on each side of the float 5. The lower end of the guide shaft 6 is fixed to the bottom of the water storage container 3 by a fixing nut 20, and the float 9 is located between the two guide shafts 6. The guide shafts 6 provide the conditions for the float 5 to move vertically along the guide shafts 6.

[0038] When the float 5 drives the lower one-way valve plate 11 to close the lower retaining ring 22, the height of the top of the float 5 is 3cm higher than the top of the U-shaped siphon 4.

[0039] The water storage container 3 has a lid on top, and the water inlet 1 is located on the lid. The filter screen 2 covers the water inlet 1. In this embodiment, the lid is convenient and can be opened to process the internal parts. The lid and the water storage container 3 are sealed together, which can effectively prevent water from leaking out of the water storage container 3. The filter screen 2 is mainly used to filter insoluble substances such as mud and sand from the water.

[0040] The water storage container 3 includes an upper part and a lower part separated by a shell. Water is stored in the upper part of the water storage container 3. The lower part of the water storage container 3 is separated from the upper part by a shell. The U-shaped pipe inlet 12, the U-shaped pipe outlet 13, the turbine water flow sensor 14, and the water outlet 17 are all located in the lower part of the water storage container 3. The top sides of the U-shaped pipe inlet 12, the U-shaped pipe outlet 13, and the water outlet 17 all extend into the upper part of the water storage container 3 and are higher than the upper side of the shell between the upper and lower parts. The lower end of the guide shaft 6 is fixed to the shell between the upper and lower parts of the water storage container 3 by a fastening nut.

[0041] A mounting base 24 is installed on the outer side of the bottom of the water storage container 3. The pulse counter 15 and the notch drain outlet 18 are both located inside the mounting base 24. The mounting base 24 is also equipped with a built-in battery 16 that is connected to and charges the pulse counter 15. The pulse counter 15 is connected to a data cable, and the built-in battery 16 is connected to a charging cable. An aviation waterproof connector 19 is located next to the notch drain outlet 18, and the data cable and the charging cable are passed through the aviation waterproof connector 19.

[0042] The data acquisition system includes a data acquisition unit, a display, and a network-connected DTU wireless transmission module. A pulse counter 15 is connected to the data acquisition unit via a data cable, and the DTU wireless transmission module is connected to both the data acquisition unit and the display. The pulse counter 15 can realize water flow rate values ​​and store them on-site. In this embodiment, both the data acquisition unit and the DTU wireless transmission module are existing technologies and are not shown in the accompanying drawings; therefore, detailed structural analysis is not provided. The DTU wireless transmission module, or Data Transfer Unit (DTU), is a wireless terminal device specifically used to convert serial port data to IP data or vice versa for transmission via a wireless communication network. In this embodiment, the DTU wireless transmission module can be the YT-DTU-600DTU wireless transmission module manufactured by Yutian Environmental Protection Co., Ltd. The display is a terminal display and is existing equipment; therefore, detailed analysis is unnecessary.

[0043] Filter 2 is a cylindrical structure with several filter holes on its sidewalls. The cylindrical structure of filter 2 allows for more efficient filtration.

[0044] In this embodiment, the turbine water flow sensor 14 is an existing device, therefore its specific structure will not be analyzed. The turbine water flow sensor 14 consists of a magnetic impeller and a Hall sensor. The float 5 moves vertically upward along the guide shafts 6 on both sides, moving together with the lower one-way valve body as a whole. The buoyancy control of the lower one-way valve plate 11 controls the opening and closing, thereby controlling the accumulation and discharge of water in the water storage container 3. In this embodiment, the turbine water flow sensor 14 can be a 4-point transparent flow sensor, turbine flow meter, or water flow sensor from Sea Dijiang, a brand of Zhongjiang Energy Saving Electronics Co., Ltd., model YF-S201C.

[0045] In this embodiment, the water to be measured enters the water storage container 3 through the inlet 1 and the filter screen 2. The float 9 is fixed to the upper one-way valve 7 via the first connecting rod 8. When the water level reaches the top of the float 9, the float 9 lifts the upper one-way valve 7 under the action of buoyancy, thereby closing the upper retaining ring 21 at the bottom of the float 5. The float 5 is guided by the guide shafts 6 on both sides and is fixed to the lower one-way valve 11 via the second connecting rod 10. When the water level continues to rise to the middle of the float 5, the float 5 drives the lower one-way valve 11 to rise under the action of buoyancy, and the lower one-way valve 11 closes the lower retaining ring 22, thereby closing the outlet 17 of the water storage container 3. When the water level reaches the top of the float 5, water enters the float 5. When the float 5 is full of water, the weight of the water makes the overall gravity of the float 5 greater than the buoyancy. Under the action of gravity, the float 5 immediately descends, driving the lower one-way valve 11 to open the lower baffle ring 22, thereby opening the outlet 17 of the water storage container 3. Utilizing the water level difference, conditions are provided for triggering the U-shaped siphon pipe 4 to generate a full-pipe siphon flow. The water pressurized by the siphon flows out through the U-shaped siphon pipe 4 from the notch drain outlet 18, simultaneously driving the magnetic impeller of the turbine water flow sensor 14 to output pulses. The data is stored on-site by the built-in pulse counter 15 and simultaneously connected to a data acquisition unit via a waterproof aviation connector, and monitored in real time via a DTU wireless transmission module. After each siphon action is completed, the float 5 and float 9 reset, and the upper one-way valve 7 and lower one-way valve 11 are in the open state, ready for the next action.

[0046] One pulse corresponds to approximately 3 ml of water. The device specifications are calibrated through a water test. Weigh the total water volume discharged after one siphon operation. Divide the total water volume by the number of pulses to get the water volume corresponding to each pulse. The device measures water volume from 300L to 2000L / h, where h is in hours. The measurement range is determined based on the diameter of the drain pipe.

[0047] In this embodiment, the float 9 moves together with the upper one-way valve 7 via the first connecting rod 8. As the water level reaches the top of the float 9, the three components move vertically upwards due to buoyancy, causing the upper one-way valve 7 to close the bottom of the float 5. Specifically, the float 9's main function is to use the buoyancy of the water to drive the upper one-way valve 7 to close the bottom of the float 5 together with the first connecting rod 8. This buoyancy then causes the float 5 to close the lower one-way valve 11 via the second connecting rod 10, preventing water seepage into the water storage container 3 and allowing the container to store water, thus raising the water level. The advantage of using the upper one-way valve 7 and the lower one-way valve 11 is that no additional electrical control is required, reducing the complexity of the device's wiring. When the float 5 is filled with water, the weight of the water makes the overall weight of the float 5 greater than the buoyancy. Under the action of gravity, the float 5 immediately descends, driving the one-way valve plate 11 to open, so that water flows out from the outlet 17 of the water storage container 3. The water pressurized by the siphon passes through the U-shaped siphon pipe 4 and flows out smoothly from the notch drain 18.

[0048] In this embodiment, the turbine water flow sensor 14 outputs pulses, and the data is stored on-site by the built-in pulse counter 15, enabling accurate measurement of water flow without manual operation. The aviation waterproof connector 19 next to the notch drain outlet 18 is located at the bottom, facilitating connection to a data acquisition device for real-time observation via DTU wireless transmission module. Simultaneously, the aviation waterproof connector 19 effectively prevents circuit failures caused by water.

[0049] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A float-triggered siphon-type automatic water volume measuring device, characterized in that: The system includes a water storage container; the water storage container is equipped with a float, a U-shaped siphon, a U-shaped inlet, a U-shaped outlet, an upper one-way valve, a lower one-way valve, a float, and a turbine water flow sensor; the water storage container has an inlet at the top, an outlet at the bottom, and a notch at the bottom connecting to the outside; a filter screen is installed at the inlet; the U-shaped siphon opens downwards, its inlet is connected to the turbine water flow sensor outlet, and its outlet is connected to the notch at the outlet. The outlet is connected to the inlet of the turbine water flow sensor; the upper one-way valve is connected to the float, and the lower one-way valve is fixed to the float via a second connecting rod. The lower one-way valve is located inside the outlet and closes or opens the outlet; a guide shaft is installed at the bottom of the water storage container, and the float is mounted on the guide shaft and can slide up and down along it; the float is a hollow cylinder with its upper and lower sides extending through it, and the float is located below the float. As the water level rises and falls, the upper one-way valve closes or opens the bottom of the float; the exterior of the water storage container... A pulse counter is provided for accumulating the number of pulses output by the turbine water flow sensor, and the pulse counter is connected to a data acquisition system; an upper retaining ring is installed on the inner side of the lower end of the float, and an upper one-way valve plate is fixed to the float as a whole by a first connecting rod. The upper one-way valve plate is located below the upper retaining ring, and the diameter of the upper one-way valve plate is larger than the inner diameter of the upper retaining ring; the float opens downward to form a cavity, and a lower retaining ring is provided in the outlet; a fixed shaft is installed on the second connecting rod, and the middle part of the fixed shaft is fixed to the second connecting rod; the lower one-way valve... The plate is installed at the lower end of the fixed shaft, and the upper end of the fixed shaft is inserted into the cavity of the float; the lower end of the fixed shaft passes through the lower retaining ring, and the lower one-way valve plate is located below the lower retaining ring. The diameter of the lower one-way valve plate is larger than the inner diameter of the lower retaining ring; when the upper one-way valve plate rises and presses against the upper retaining ring, the distance between the inner top surface of the float and the upper end of the fixed shaft is less than the length of the float cavity; the second connecting rod is a C-shaped frame with its opening facing upward, and the two sides of the float are respectively fixed on the vertical sections on both sides of the C-shaped frame, and the middle part of the fixed shaft is fixed on the horizontal section of the C-shaped frame.

2. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: The guide shaft is provided in two parts, which are respectively set on both sides of the float. The lower end of the guide shaft is fixed to the bottom of the water storage container by a fixing nut, and the float is located between the two guide shafts.

3. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: When the float drives the lower one-way valve to close the lower retaining ring, the height of the top of the float is 3cm higher than the top of the U-shaped siphon.

4. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: The water storage container is provided with a container cover on the top, the water inlet is located on the container cover, and the filter screen is covered on the water inlet.

5. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: The water storage container includes an upper part and a lower part separated by a shell. Water is stored in the upper part of the water storage container. The lower part of the water storage container is separated from the upper part by the shell. The U-shaped tube inlet, U-shaped tube outlet, turbine water flow sensor, and water outlet are all located in the lower part of the water storage container. The top sides of the U-shaped tube inlet, U-shaped tube outlet, and water outlet all extend into the upper part of the water storage container and are higher than the upper side of the shell between the upper and lower parts. The lower end of the guide shaft is fixed to the shell between the upper and lower parts of the water storage container by a fastening nut.

6. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: An mounting base is installed on the outer side of the bottom of the water storage container. The pulse counter and the notch drain outlet are both located inside the mounting base. The mounting base also contains a built-in battery that is connected to and charges the pulse counter. The pulse counter is connected to a data cable, and the built-in battery is connected to a charging cable. An aviation waterproof connector is located next to the notch drain outlet, and the data cable and the charging cable pass through the aviation waterproof connector.

7. The float-triggered siphon-type automatic water volume measuring device according to claim 6, characterized in that: The data acquisition system includes a data acquisition unit, a display, and a network-connected DTU wireless transmission module. The pulse counter is connected to the data acquisition unit via a data cable, and the DTU wireless transmission module is connected to the data acquisition unit and the display, respectively.

8. The float-triggered siphon-type automatic water volume measuring device according to claim 1, characterized in that: The filter screen is a cylindrical structure with several filter holes on its side wall.

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