Flood and drought resistant flow monitoring device

Abstract

The utility model relates to flow monitoring technical field discloses a kind of flood-prevention drought-resistant flow monitoring devices, including monitoring pipe and the flowmeter of fixed installation in the top of monitoring pipe, the inside of the monitoring pipe is equipped with inner chamber, the inner wall top of the inner chamber is fixedly connected with slide bar, the outer surface of the slide bar is slidably connected with rubber block, the bottom of the rubber block is fixedly connected with movable block, the top inside diameter of the inner chamber is big, and the bottom inside diameter is small.The flood-prevention drought-resistant flow monitoring device, through floating plate with water level lifting drive magnetic ring moves, utilize magnetic attraction force to drive the rubber block inside monitoring pipe along slide bar sliding, cooperate the tapered structure of inner chamber and the multiple groups of through holes on rubber block, can be automatically adjusted the passage area of water flow according to water level change, when water level rises, enlarge passage area, avoid water flow backlog;When water level reduces, reduce passage area, stabilize water flow velocity, ensure that different water level scene can provide stable water flow condition for flow monitoring.

Description

Technical Field

[0001] This utility model belongs to the field of flow monitoring technology, specifically, it relates to a flow monitoring device for flood control and drought relief. Background Technology

[0002] The core basis of the strategy. Currently, most commonly used flow monitoring devices adopt a fixed channel structure, meaning the cross-sectional area of ​​the channel through which water flows is fixed, making it impossible to adaptively adjust according to changes in the water level of the monitored area. When encountering a flood control scenario where the water level rises rapidly, the fixed channel cannot quickly divert a large amount of water, easily leading to water accumulation inside the device. This not only affects the real-time performance and accuracy of the flow monitoring data but may also damage the device components due to excessive water pressure. Conversely, in a drought relief scenario where the water level is low, the fixed channel results in an excessively slow water flow velocity, making it difficult for the flow meter to stably capture low flow signals, easily leading to data distortion or interruption. This fails to meet the precise and adaptive flow monitoring requirements of flood control and drought relief. Utility Model Content

[0003] The purpose of this invention is to provide a flow monitoring device for flood control and drought relief, so as to solve the problems mentioned in the background art.

[0004] A flow monitoring device for flood control and drought relief includes a monitoring tube and a flow meter fixedly installed at the top of the monitoring tube. The monitoring tube has an inner cavity. A sliding rod is fixedly connected to the top of the inner wall of the inner cavity. A rubber block is slidably connected to the outer surface of the sliding rod. A movable block is fixedly connected to the bottom of the rubber block. The inner diameter of the inner cavity is large at the top and small at the bottom.

[0005] The rubber block has a through hole one on its side and through holes two and three on its upper surface.

[0006] In a preferred embodiment of this utility model, the bottom cross-section of the movable block is cylindrical and the top cross-section is trapezoidal. The first through hole penetrates the rubber block, and the bottoms of the second and third through holes are connected to the interior of the first through hole.

[0007] In a preferred embodiment of this utility model, a water outlet pipe is fixedly connected to the top front of the monitoring tube, a water inlet pipe is fixedly connected to the bottom front of the monitoring tube, and the monitoring end of the flow meter extends into the interior of the water outlet pipe.

[0008] In a preferred embodiment of this utility model, the movable block is made of magnet, a threaded rod is fixedly connected to the middle of the outer surface of the monitoring tube, a magnetic ring is threadedly connected to the outer surface of the threaded rod, a floating plate is fixedly connected to the bottom of the magnetic ring, and a swivel plate is fixedly connected to the bottom of the floating plate.

[0009] In a preferred embodiment of this utility model, the magnetic ring attracts the side of the movable block that is close to it, the top and bottom of the outer surface of the threaded rod are fixedly connected to limit blocks, and the bottom end of the slitting plate is flush with the bottom end of the monitoring tube.

[0010] In a preferred embodiment of this utility model, the outer surface of the water inlet pipe is provided with an external thread, and a water filter is connected to the outer surface of the water inlet pipe through the external thread. The inner wall of the water filter is provided with a sliding cavity, a water leakage plate is fixedly connected to the bottom of the inner wall of the sliding cavity, a cleaning needle is fixedly connected to the top of the water leakage plate, a telescopic spring is fixedly connected to the top outer surface of the water leakage plate, and a filter screen is fixedly connected to the top of the telescopic spring.

[0011] In a preferred embodiment of this utility model, the telescopic springs are evenly distributed on the top outer surface of the drain plate, the diameter of the cleaning needle is smaller than the mesh diameter of the filter screen, and the water filter and its interior are coated with an anti-rust coating.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This flood control and drought relief flow monitoring device uses a floating plate to move a magnetic ring as the water level rises and falls. The magnetic attraction drives a rubber block inside the monitoring tube to slide along a sliding rod. Combined with the conical structure of the inner cavity and multiple sets of through holes on the rubber block, it can automatically adjust the channel area through which the water flows according to changes in water level. When the water level rises, the channel area is expanded to avoid water accumulation; when the water level falls, the channel area is reduced to stabilize the water flow velocity, ensuring that stable water flow conditions can be provided for flow monitoring under different water level scenarios.

[0013] 2. This flood control and drought relief flow monitoring device uses a water filter at the inlet pipe to intercept impurities in the water, preventing them from entering the monitoring pipe and flow meter and causing blockages. As impurities accumulate, the water pressure increases, causing the filter screen to compress and the extension spring to move downwards, allowing the cleaning needle to insert into the filter screen mesh to automatically clear blockages. After the impurities are cleared, the spring resets, causing the filter screen to return to its initial position. This eliminates the need for frequent manual disassembly and cleaning, reducing maintenance costs and ensuring long-term stable operation of the device.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the monitoring tube of this utility model; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4This is a schematic diagram of the internal structure of the water filter of this utility model.

[0016] In the diagram: 1. Monitoring tube; 101. Threaded rod; 102. Magnetic ring; 103. Float plate; 104. Sliding plate; 105. Inner cavity; 106. Sliding rod; 107. Rubber block; 1071. Through hole one; 1072. Through hole two; 1073. Through hole three; 108. Movable block; 2. Inlet pipe; 3. Outlet pipe; 4. Flow meter; 5. Water filter; 501. Sliding cavity; 502. Leaking plate; 503. Telescopic spring; 504. Cleaning needle; 505. Filter screen. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] Example 1: like Figures 1 to 4 As shown, a flow monitoring device for flood control and drought relief includes a monitoring pipe 1 and a flow meter 4 fixedly installed at the top of the monitoring pipe 1. A water outlet pipe 3 is fixedly connected to the top front of the monitoring pipe 1, and a water inlet pipe 2 is fixedly connected to the bottom front of the monitoring pipe 1. The monitoring end of the flow meter 4 extends into the interior of the water outlet pipe 3.

[0019] The monitoring tube 1 has an inner cavity 105. A slide rod 106 is fixedly connected to the top of the inner wall of the inner cavity 105. A rubber block 107 is slidably connected to the outer surface of the slide rod 106. A movable block 108 is fixedly connected to the bottom of the rubber block 107. The inner diameter of the top of the inner cavity 105 is large and the inner diameter of the bottom is small. A through hole 1071 is opened on the side of the rubber block 107. A through hole 2 1072 and a through hole 3 1073 are opened on the upper surface of the rubber block 107. The bottom cross-section of the movable block 108 is cylindrical and the top cross-section is trapezoidal. The through hole 1071 penetrates the rubber block 107. The bottoms of the through holes 2 1072 and 3 1073 are connected to the inside of the through hole 1071.

[0020] The movable block 108 is made of magnet. A threaded rod 101 is fixedly connected to the middle of the outer surface of the monitoring tube 1. A magnetic ring 102 is threadedly connected to the outer surface of the threaded rod 101. A floating plate 103 is fixedly connected to the bottom of the magnetic ring 102. A sliding plate 104 is fixedly connected to the bottom of the floating plate 103. The magnetic ring 102 and the movable block 108 are attracted to each other on the side closest to it. Limiting blocks are fixedly connected to the top and bottom of the outer surface of the threaded rod 101. The bottom end of the sliding plate 104 is flush with the bottom end of the monitoring tube 1.

[0021] Example 2: Based on Embodiment 1, the outer surface of the water inlet pipe 2 is provided with external threads, and the water filter 5 is connected to the outer surface of the water inlet pipe 2 through the external threads. The inner wall of the water filter 5 is provided with a sliding cavity 501. A water leakage plate 502 is fixedly connected to the bottom of the inner wall of the sliding cavity 501. A cleaning needle 504 is fixedly connected to the top of the water leakage plate 502. A telescopic spring 503 is fixedly connected to the top outer surface of the top of the water leakage plate 502. A filter screen 505 is fixedly connected to the top of the telescopic spring 503. The telescopic springs 503 are evenly distributed on the top outer surface of the water leakage plate 502. The diameter of the cleaning needle 504 is smaller than the mesh diameter of the filter screen 505. The water filter 5 and its interior are coated with an anti-rust coating.

[0022] Device assembly: First, fix the slide rod 106 to the top of the inner wall of the inner cavity 105 of the monitoring tube 1. Then, slide the rubber block 107 onto the outer surface of the slide rod 106 to ensure that the rubber block 107 can slide smoothly along the slide rod 106. Fix the movable block 108 to the bottom of the rubber block 107. The movable block 108 should be made of magnetic material, and its top trapezoidal structure should be compatible with the small inner diameter of the bottom of the inner cavity 105. Fix the threaded rod 101 in the middle of the outer surface of the monitoring tube 1. Thread the magnetic ring 102 onto the threaded rod 101 so that the magnetic ring and the movable block 108 attract each other on the side closest to each other. Then, install the float plate 103 and the swivel plate 104 in sequence. At the same time, install the limiting blocks at the top and bottom of the threaded rod 101. Fix the inlet pipe 2 and the outlet pipe 3 to the bottom and top of the front of the monitoring tube 1, respectively. Install the flow meter 4 at the top of the monitoring tube 1 to ensure that its monitoring end extends into the outlet pipe 3.

[0023] The water filter 5 is connected to the outer end of the water inlet pipe 2 via external threads. The water filter 5 must be pre-assembled with the water leakage plate 502, the telescopic spring 503, the cleaning needle 504 and the filter screen 505, ensuring that the cleaning needle 504 is aligned with the mesh position of the filter screen 505.

[0024] Select flood and drought monitoring points, fix the device, and ensure that the bottom end of the swashplate 104 is flush with the bottom end of the monitoring pipe 1 and fits against the bottom surface of the monitoring area. Adjust the initial position of the magnetic ring 102 on the threaded rod 101, and adjust the initial height of the movable block 108 and the rubber block 107 on the slide rod 106 by magnetic attraction according to the reference water level of the monitoring area. Check the installation of the water filter 5 to ensure that the filter screen 505 is in a naturally extended state under the action of the telescopic spring 503, and that the cleaning needle 504 is not inserted into the mesh of the filter screen 505. Start the flow meter 4 for pre-testing to ensure that it can normally collect the water flow signal in the outlet pipe 3, and that there are no problems such as jamming or leakage in any part of the device.

[0025] Regularly inspect the water filter 5. Disassemble the water filter 5 through the external thread, clean the impurities accumulated on the surface of the filter screen 505, and check whether the cleaning needle 504 is intact. Check the threaded connection between the threaded rod 101 and the magnetic ring 102, add lubricating oil to ensure smooth adjustment, and check whether the limit block is secure. Verify the monitoring accuracy of the flow meter 4, and perform regular calibration to ensure accurate flow data. Check the anti-rust coating of the water filter 5 and its internal components. If it peels off, reapply it in time to avoid rust affecting use.

[0026] Working principle: When the water level in the monitoring area changes, the floating plate 103 at the bottom of the device will rise and fall synchronously due to buoyancy. When the water level rises, the floating plate 103 floats upward; when the water level falls, the floating plate 103 sinks with the water level. Since the floating plate 103 is fixedly connected to the magnetic ring 102, and the magnetic ring 102 is threaded onto the threaded rod 101 on the outer surface of the monitoring tube 1, the rise and fall of the floating plate 103 will directly drive the magnetic ring 102 to slide vertically along the threaded rod 101. The threaded rod 101 acts as a guide, and the limiting blocks at the top and bottom can prevent the magnetic ring 102 from sliding out of the range.

[0027] The movable block 108, which adjusts the position of the rubber block, is made of magnet, and the side closest to the magnetic ring 102 has an opposite magnetic pole. Therefore, the sliding of the magnetic ring 102 is transmitted to the movable block 108 inside the monitoring tube 1 via magnetic force. Since the movable block 108 is fixedly connected to the rubber block 107, and the rubber block 107 is slidably fitted onto the slide rod 106 at the top of the inner cavity 105, the movable block 108 will drive the rubber block 107 to slide synchronously along the slide rod 106, ultimately achieving vertical position adjustment of the rubber block 107 in the inner cavity 105.

[0028] The inner cavity 105 is designed as a conical structure with a large inner diameter at the top and a small inner diameter at the bottom. Meanwhile, the rubber block 107 has a through hole 1071 on its side and through holes 1072 and 1073 on its upper surface that communicate with through hole 1071. Water needs to flow through these through holes from the bottom to the top of the inner cavity 105 and then enter the water outlet pipe 3.

[0029] When the water level rises, the magnetic ring 102 drives the rubber block 107 to move upward. At this time, the rubber block 107 is in the area with a larger inner diameter of the inner cavity 105. The total cross-sectional area of ​​the gap between the rubber block and the inner cavity wall plus the through hole is larger, which allows more water to pass through quickly and avoids water accumulation in the monitoring pipe. When the water level drops, the magnetic ring 102 drives the rubber block 107 to move downwards. The rubber block 107 enters the area with a smaller inner diameter of the inner cavity 105. The gap and the total cross-sectional area of ​​the through hole through which the water flows decrease, which can slow down the water flow speed and ensure that the flow meter 4 can stably capture low flow signals, avoiding the distortion of monitoring data due to the slow water flow.

[0030] Meanwhile, the cylindrical bottom and trapezoidal top cross-section design of the movable block 108 can reduce the water flow resistance when it slides in the inner cavity 105, and avoid water flow impact affecting the position adjustment accuracy.

[0031] The water filter 5 at the inlet pipe 2 is used to intercept impurities in the water and prevent them from entering the monitoring pipe 1 and flow meter 4 and causing blockage. Its working principle consists of two stages: filtration and interception, and automatic unblocking, which is achieved by the cooperation of the filter screen, telescopic spring, and cleaning needle. When water flows from the outside to the inlet pipe 2, it first passes through the filter screen 505 of the water filter 5. The filter screen 505 is horizontally fixed in the sliding cavity 501 of the water filter 5 by the telescopic spring 503. Its mesh can intercept impurities in the water with a diameter larger than the mesh, allowing only clean water to pass through the filter screen 505, and then enter the inlet pipe 2 through the gaps of the drain plate 502, finally flowing to the monitoring pipe 1. During this stage, the telescopic spring 503 is in a naturally extended state, the filter screen 505 is held in the upper position of the sliding cavity 501, and the cleaning needle 504 does not contact the filter screen 505.

[0032] Impurities gradually accumulate on the surface of filter screen 505, reducing its water-passing area and increasing water flow resistance. At this point, the pressure of the water flow on filter screen 505 exceeds the elastic force of the telescopic spring 503, pushing filter screen 505 downwards along the sliding cavity 501 and compressing the telescopic spring 503. Since the diameter of the cleaning needle 504 is smaller than the mesh diameter of filter screen 505, and the position of the cleaning needle 504 corresponds one-to-one with the mesh of filter screen 505, the cleaning needle 504 precisely inserts into the mesh of the filter screen as it moves downwards, pushing out small impurities stuck in the mesh and automatically unclogging the mesh. Once the mesh is unclogging, the water flow resistance decreases, the pressure of the water flow on filter screen 505 decreases, and the telescopic spring 503 resets under its elastic force, pushing filter screen 505 back to its initial position at the top of the sliding cavity 501. The cleaning needle 504 separates from the filter screen 505, and the device returns to normal filtration. In addition, the water filter 5 and its internal components such as the drain plate 502 and cleaning needle 504 are coated with an anti-rust coating to prevent corrosion caused by long-term contact with water flow and to ensure the stability of the filtration and unclogging functions.

Claims

1. A flow monitoring device for flood control and drought relief, comprising a monitoring tube (1) and a flow meter (4) fixedly installed at the top of the monitoring tube (1), characterized in that: The monitoring tube (1) has an inner cavity (105) inside. A slide rod (106) is fixedly connected to the top of the inner wall of the inner cavity (105). A rubber block (107) is slidably connected to the outer surface of the slide rod (106). A movable block (108) is fixedly connected to the bottom of the rubber block (107). The inner diameter of the top of the inner cavity (105) is large, and the inner diameter of the bottom is small. The side of the rubber block (107) is provided with a through hole one (1071), and the upper surface of the rubber block (107) is provided with a through hole two (1072) and a through hole three (1073).

2. The flow monitoring device for flood control and drought relief according to claim 1, characterized in that: The bottom section of the movable block (108) is cylindrical and the top section is trapezoidal. The first through hole (1071) penetrates the rubber block (107). The bottoms of the second through hole (1072) and the third through hole (1073) are connected to the inside of the first through hole (1071).

3. The flow monitoring device for flood control and drought relief according to claim 1, characterized in that: The monitoring tube (1) is fixedly connected to the top front of the water outlet pipe (3), and the monitoring tube (1) is fixedly connected to the bottom front of the water inlet pipe (2). The monitoring end of the flow meter (4) extends into the interior of the water outlet pipe (3).

4. The flow monitoring device for flood control and drought relief according to claim 1, characterized in that: The movable block (108) is made of magnet. A threaded rod (101) is fixedly connected to the middle of the outer surface of the monitoring tube (1). A magnetic ring (102) is threadedly connected to the outer surface of the threaded rod (101). A floating plate (103) is fixedly connected to the bottom of the magnetic ring (102). A swivel plate (104) is fixedly connected to the bottom of the floating plate (103).

5. A flow monitoring device for flood control and drought relief according to claim 4, characterized in that: The magnetic ring (102) and the movable block (108) are attracted to each other on the side closest to each other. Limiting blocks are fixedly connected to the top and bottom of the outer surface of the threaded rod (101). The bottom end of the slitting plate (104) is flush with the bottom end of the monitoring tube (1).

6. The flow monitoring device for flood control and drought relief according to claim 3, characterized in that: The outer surface of the water inlet pipe (2) is provided with an external thread, and the outer surface of the water inlet pipe (2) is connected to a water filter (5) through the external thread. The inner wall of the water filter (5) is provided with a sliding cavity (501). A water leakage plate (502) is fixedly connected to the bottom of the inner wall of the sliding cavity (501). A cleaning needle (504) is fixedly connected to the top of the water leakage plate (502). A telescopic spring (503) is fixedly connected to the top outer surface of the water leakage plate (502). A filter screen (505) is fixedly connected to the top of the telescopic spring (503).

7. A flow monitoring device for flood control and drought relief according to claim 6, characterized in that: The telescopic springs (503) are evenly distributed on the top outer surface of the drain plate (502), the diameter of the cleaning needle (504) is smaller than the mesh diameter of the filter screen (505), and the water filter (5) and its interior are coated with an anti-rust coating.

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