Water flow accurate detection device for hydraulic engineering model experiment
By designing a water flow detection device for water conservancy engineering model experiments, the water flow fluctuation is weakened by components such as weak wave plates and float blocks, and the reading accuracy is improved through indicators and scales, the problem of traditional detection methods being affected by turbulence and fluctuation is solved, and the flow reading accuracy is achieved.
Patent Information
- Application Number
- CN202411771973.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-11
AI Technical Summary
When traditional triangular weirs are used for water flow detection, they are susceptible to turbulence of water flow and fluctuations in the water surface, which reduces the accuracy of readings.
A water flow accuracy detection device for experiments in water conservancy engineering models was designed. By setting up weak wave plates, float blocks, vertical float rods, guide holes, indicators, scales and other components, the weak wave plates are used to block the water flow, weaken the fluctuation amplitude, and push the indicators to move through buoyancy, and judge the flow data in combination with water level to improve the accuracy of the reading.
It effectively reduces the impact of turbulence of water flow and fluctuations on the flow readings, and improves the accuracy of artificial water flow readings.
Smart Images
Figure CN119595057A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of flow detection, and in particular to a device for accurately detecting water flow in a hydraulic engineering model experiment. Background Art
[0002] Hydraulic engineering model experiments are an important means to study water flow dynamics and optimize engineering design. In these experiments, accurate measurement of water flow is crucial because it is directly related to the accuracy and reliability of experimental data. The measurement of water flow is of great significance for assessing flood risks, monitoring river flow changes, and optimizing water resource management. With the advancement of technology, the accuracy requirements for water flow measurement are getting higher and higher, especially in complex field environments. A device that can adapt to a variety of environments and provide accurate measurement results is needed.
[0003] At present, the triangular weir is a commonly used water flow measurement tool. It is widely used in open channel flow measurement due to its simple structure and low cost. The working principle of the triangular weir is to calculate the flow rate by measuring the height of the water head (i.e., the submerged depth) on the weir when the water flows through the weir. In specific operations, a ruler is usually used to fit the side of the triangular weir to read the height value of the right angle where the water flows over the triangular weir.
[0004] Although triangular weirs are widely used in water flow measurement, in traditional water flow detection, when using triangular weirs for detection, the reading is usually completed by measuring the height of the water head on the weir when the water flows through the triangular weir with a ruler. This method may be affected by environmental factors such as turbulence of the water flow and fluctuations of the water surface, thereby affecting the accuracy of the reading. Summary of the invention
[0005] The purpose of the present application is to solve the problem that the traditional water flow detection by measuring the height of the water head on the weir when the water flows through the triangular weir with a ruler is easily affected by environmental factors such as turbulence of the water flow and fluctuations of the water surface, which reduces the accuracy of the ruler reading. The present application provides a device for accurately detecting water flow in a water conservancy project model experiment.
[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A device for accurately detecting water flow in a hydraulic engineering model experiment comprises a water channel, wherein a pre-buried groove is provided in the middle section of the water channel, a U-shaped mounting plate is fixedly connected to the interior of the pre-buried groove, a water-blocking weir is fixedly connected to one end of the U-shaped mounting plate, a right-angled triangular groove is provided on the top of the water-blocking weir, a pipe groove is provided on one end of the water-blocking weir, a water inlet is provided on the bottom of the pipe groove, a plurality of balancing ports are evenly provided on one side of the pipe groove, a floating block is inserted into the interior of the pipe groove, a vertical floating rod is fixedly connected to the top of the floating block, a guide hole is provided on the top of the pipe groove, one end of the vertical floating rod passes through the guide hole and is fixedly connected to an indicator mark, a scale is fixedly connected to the top of the water-blocking weir, the reading of the scale starts from the right angle of the right-angled triangular groove, and a plurality of weak wave plates are evenly fixedly connected to the interior of the U-shaped mounting plate.
[0007] By adopting the above technical scheme, by setting the weak wave plate in conjunction with the floating block, the vertical floating rod, the guide hole, the indicator mark and the scale, it is convenient to use the weak wave plate to block the water flow passing through the U-shaped mounting plate and flowing to one side of the water blocking weir, thereby effectively weakening the fluctuation amplitude of the water flow. At the same time, the reading of the scale is set to start counting from the right angle of the right-angled triangular groove, and the buoyancy of the water flow pushes the floating block to drive the indicator mark to move along the length direction of the pipe groove, and the scale is used to measure the height of the water flow crossing the right angle of the right-angled triangular groove, and then the indicator mark and the scale mark are observed. The data indicated by the scale mark and the scale are combined with the water level to judge the flow data, thereby effectively reducing the influence of the turbulence of the water flow and the fluctuation of the water surface on the flow reading, and improving the accuracy of the artificial water flow reading.
[0008] Furthermore, a plurality of lifting plates are evenly and fixedly connected to the inner bottom of the pipe groove, and the floating block is installed above the lifting plates.
[0009] By adopting the above technical scheme, by setting up the cooperation between the lifting plate and the float block, it is convenient to use the lifting plate to support the bottom of the adjusting gear, so that the bottom of the adjusting gear is separated from the contact with the U-shaped mounting plate, so that when the water flows through the water inlet into the pipe groove, it directly rushes into the bottom of the float block, thereby lifting the float block, and effectively improving the response efficiency of the float block.
[0010] Furthermore, a plurality of breakwaters are evenly hinged on the inner bottom of the U-shaped mounting plate, and the breakwaters are arranged in sequence from low to high. A driving slide groove is provided inside the U-shaped mounting plate, and a mounting groove adapted to the breakwater is provided at the bottom of the driving slide groove. An adjusting gear is fixedly connected to one end of the breakwater extending into the mounting groove, and an adjusting rack meshing with the adjusting gear is slidably connected inside the driving slide groove, and an adjusting component for driving the adjusting rack to move is installed inside the driving slide groove.
[0011] By adopting the above technical solution, by setting the adjustment component and the adjustment rack and the adjustment gear for coordinated use, when the adjustment component is rotated to drive the adjustment rack to mesh with the adjustment gear along the driving slide groove, the breakwater is driven to rotate around the hinge axis to a state perpendicular to the length direction of the U-shaped mounting plate, so that multiple breakwaters are arranged in sequence from low to high on one side of the water blocking weir, forming a multi-layer blocking dam for the water flow, so as to slow down the flow velocity of the water flow, reduce the fluctuation amplitude of the water flow, further improve the stability of the water flow when passing through the inside of the U-shaped mounting plate, and make the reading of the water level more accurate.
[0012] Furthermore, the adjustment component includes an adjustment slot opened at one end of the driving slot, one end of the adjustment rack is fixedly connected to an adjustment slider, one end of the adjustment slider is slidably connected to the inside of the adjustment slot, the inside of the adjustment slot is rotatably connected to an adjustment screw threadedly connected to the adjustment slider, one end of the adjustment screw passes through a U-shaped mounting plate and is fixedly connected to a knob.
[0013] By adopting the above technical solution and setting the coordinated use of the adjusting screw and the adjusting slider, the adjusting screw and the adjusting slider can be driven to be threadedly connected by turning the knob, and the adjusting slider can be driven to drive the adjusting rack to move along the length direction of the driving slide slot, thereby effectively improving the practicability of the device.
[0014] Furthermore, a plurality of abutting edges adapted to the breakwater are symmetrically fixedly connected to the inner side of the U-shaped mounting plate.
[0015] By adopting the above technical solution, by setting the cooperation between the abutment edge and the breakwater, it is convenient to drive the breakwater to rotate around the hinge axis to a state perpendicular to the length direction of the U-shaped mounting plate, so that one end of the breakwater comes into contact with the abutment edge, thereby effectively improving the stability of the breakwater in the vertical state.
[0016] Furthermore, a water outlet is provided at the bottom of the wave weakening plate.
[0017] By adopting the above technical scheme, by setting the water outlet and the weak wave plate for coordinated use, it is convenient to use the water outlet to guide the water flow below the water level of the weak wave plate, and flow through the weak wave plate through the water outlet to one side of the water blocking weir, thereby effectively improving the practicability of the device.
[0018] Furthermore, a slot is symmetrically provided on one side of the water-blocking weir, an insert block is inserted inside the slot, one end of the insert block is fixedly connected to a triangular support plate, a fixing hole is provided at the bottom of the triangular support plate, a fixing screw is inserted inside the fixing hole, and the fixing screw is threadedly connected to one end of the channel.
[0019] By adopting the above technical solution, by setting the triangular support plate and the slot and the plug block for use, it is convenient to mobilize the plug block to be inserted into the slot by pulling the triangular support plate, so that the triangular support plate forms a triangular support structure on the side of the water blocking weir away from the weak wave plate, thereby effectively improving the supporting strength of the water blocking weir, reducing the deformation or loosening of the water blocking weir caused by the impact of water flow, and further improving the detection accuracy of the device.
[0020] Furthermore, the surfaces of the U-shaped mounting plate, the water blocking weir, the wave weakening plate and the breakwater are all coated with organic silicon waterproof coating.
[0021] By adopting the above technical solution and providing an organic silicon waterproof coating, the rust resistance and corrosion resistance of the device surface are effectively improved, thereby extending the service life of the device.
[0022] In summary, the present application includes at least one of the following beneficial effects: 1. By setting up the weak wave plate in conjunction with the floating block, the vertical floating rod, the guide hole, the indicator mark and the scale, it is convenient to use the weak wave plate to block the water flow passing through the U-shaped mounting plate and flowing to one side of the water blocking weir, thereby effectively weakening the fluctuation amplitude of the water flow. At the same time, the reading of the scale is set to start counting from the right angle of the right-angled triangular groove, and the buoyancy of the water flow pushes the floating block to drive the indicator mark to move along the length direction of the pipe groove, and the scale is used to measure the height of the water flow crossing the right angle of the right-angled triangular groove, and then the indicator mark and the scale mark are observed. The data indicated by the scale mark and the scale are combined with the water level to judge the flow data, thereby effectively reducing the influence of the turbulence of the water flow and the fluctuation of the water surface on the flow reading, and improving the accuracy of the artificial water flow reading.
[0023] 2. By setting the adjustment component and the adjustment rack and the adjustment gear for coordinated use, when the adjustment component is rotated to drive the adjustment rack to mesh with the adjustment gear along the driving slide groove, the breakwater is driven to rotate around the hinge axis to a state perpendicular to the length direction of the U-shaped mounting plate, so that multiple breakwaters are arranged from low to high on one side of the water blocking weir, forming a multi-layer blocking dam for the water flow, so as to slow down the flow velocity of the water flow, reduce the fluctuation amplitude of the water flow, further improve the stability of the water flow when passing through the inside of the U-shaped mounting plate, and make the water level reading more accurate.
[0024] 3. By setting the triangular support plate in cooperation with the slot and the plug, it is convenient to mobilize the plug to be inserted into the slot by pulling the triangular support plate, so that the triangular support plate forms a triangular support structure on the side of the water blocking weir away from the weak wave plate, thereby effectively improving the support strength of the water blocking weir, reducing the deformation or loosening of the water blocking weir caused by the impact of water flow, and further improving the detection accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1It is a schematic diagram of the three-dimensional structure of the device body in this application.
[0026] Figure 2 It is an exploded view of the internal structure of the water channel in this application.
[0027] Figure 3 It is an exploded view of the internal structure of the pipe groove in this application.
[0028] Figure 4 It is an exploded view of the internal structure of the driving chute in this application.
[0029] Figure 5 It is a side structural cross-sectional view of the weak wave plate in this application.
[0030] Figure 6 It is a schematic diagram of the connection relationship between the triangular support plate and the water blocking weir in this application.
[0031] Description of reference numerals: 1. Water channel; 2. Embedded groove; 3. U-shaped mounting plate; 4. Water-blocking weir; 5. Right-angle triangular groove; 6. Pipe groove; 7. Water inlet; 8. Balance port; 9. Float block; 10. Float rod; 11. Guide hole; 12. Indicator; 13. Scale; 14. Weak wave board; 15. Lifting plate; 16. Breakwater; 17. Drive slide; 18. Mounting groove; 19. Adjusting gear; 20. Adjusting rack; 21. Adjusting slide; 22. Adjusting slider; 23. Adjusting screw; 24. Knob; 25. Contact edge; 26. Water outlet; 27. Slot; 28. Insert block; 29. Triangular support plate; 30. Fixing hole; 31. Fixing screw. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1 —6 Provide further details of this application.
[0033] The embodiment of the present application discloses a device for accurately detecting water flow rate for a hydraulic engineering model experiment.
[0034] Reference Figure 1 - Figure 3, a device for accurately detecting water flow in a water conservancy project model experiment, comprising a water channel 1, a pre-buried groove 2 is provided in the middle section of the water channel 1, a U-shaped mounting plate 3 is fixedly connected inside the pre-buried groove 2, a water blocking weir 4 is fixedly connected at one end of the U-shaped mounting plate 3, a right-angled triangular groove 5 is provided on the top of the water blocking weir 4, a pipe groove 6 is provided at one end of the water blocking weir 4, a water inlet 7 is provided at the bottom of the pipe groove 6, a plurality of balancing ports 8 are evenly provided on one side of the pipe groove 6, a floating block 9 is inserted inside the pipe groove 6, a vertical floating rod 10 is fixedly connected to the top of the floating block 9, a guide hole 11 is provided on the top of the pipe groove 6, one end of the vertical floating rod 10 passes through the guide hole 11 and is fixedly connected to an indicator mark 12, a scale 13 is fixedly connected to the top of the water blocking weir 4, the reading of the scale 13 starts counting from the right angle of the right-angled triangular groove 5, and a plurality of weak wave plates 14 are evenly fixedly connected inside the U-shaped mounting plate 3; Among them, a plurality of lifting plates 15 are evenly and fixedly connected to the inner bottom of the pipe groove 6 , and the floating block 9 is installed above the lifting plates 15 .
[0035] When in use, firstly, by setting the water channel 1 and the U-shaped mounting plate 3 for use in conjunction, the water flow is guided to flow toward the water blocking weir 4 along the length direction of the U-shaped mounting plate 3, and when the water flow passes through the inside of the U-shaped mounting plate 3, it collides with the multiple weak wave plates 14 in sequence, and rises along one side of the multiple weak wave plates 14 in sequence, and then flows over the weak wave plates 14 to continue to flow toward the water blocking weir 4, thereby effectively weakening the impact strength of the water flow and reducing the fluctuation amplitude of the water flow, so that the flow of the water flow through the U-shaped mounting plate 3 is more stable, and then when the water flow rushes to one side of the weak wave plate 14, the water flow first submerges the bottom of the water blocking weir 4 and enters the inside of the pipe groove 6 through the water inlet 7, and at the same time, the water flow flows between the multiple lifting plates 15 and lifts the bottom of the floating block 9, and at the same time, the balancing port 8 is used to improve the flow efficiency of the water flow inside and outside the pipe groove 6, so that the water flow rushing into the pipe groove 6 passes through The balancing port 8 is at the same water level as the water flow inside the U-shaped mounting plate 3. Then the buoyancy of the water flow is used to push the float block 9 to float up along the length direction of the pipe groove 6. At the same time, the float block 9 pushes the vertical float rod 10 to pass through the guide hole 11 to drive the indicator mark 12 to move. When the water flow rises along one side of the water-blocking weir 4 to a position flush with the right angle of the right-angled triangular groove 5, the water flow inside the U-shaped mounting plate 3 flows through the right-angled triangular groove 5 and flows out of the water-blocking weir 4. At the same time, since the reading of the scale 13 starts counting from the right angle of the right-angled triangular groove 5, the float block 9, when pushed up by the water flow, drives the indicator mark 12 to move along the length direction of the pipe groove 6, and cooperates with the scale 13 to read the current water level data, so as to judge the flow data in combination with the water level, thereby effectively reducing the influence of the turbulence of the water flow and the fluctuation of the water surface on the flow reading, and improving the accuracy of the artificial water flow reading.
[0036] Reference Figure 2 - Figure 4The inner bottom of the U-shaped mounting plate 3 is evenly hinged with a plurality of breakwaters 16, and the plurality of breakwaters 16 are arranged in sequence from low to high. A driving chute 17 is provided inside the U-shaped mounting plate 3, and a mounting groove 18 adapted to the breakwater 16 is provided at the bottom of the driving chute 17. An adjusting gear 19 is fixedly connected to one end of the breakwater 16 extending into the mounting groove 18, and an adjusting rack 20 meshing with the adjusting gear 19 is slidably connected inside the driving chute 17, and an adjusting component for driving the adjusting rack 20 to move is installed inside the driving chute 17; The adjusting assembly includes an adjusting slot 21 provided at one end of the driving slot 17, an adjusting slider 22 is fixedly connected to one end of the adjusting rack 20, one end of the adjusting slider 22 is slidably connected to the inside of the adjusting slot 21, an adjusting screw 23 threadedly connected to the adjusting slider 22 is rotatably connected to the inside of the adjusting slot 21, one end of the adjusting screw 23 passes through the U-shaped mounting plate 3 and is fixedly connected to a knob 24; Furthermore, a plurality of abutment edges 25 adapted to the breakwater 16 are symmetrically fixedly connected to the inner side of the U-shaped mounting plate 3 .
[0037] During use, when the experiment needs to simulate a large water flow, the knob 24 is manually turned to drive the adjusting screw 23 to form a threaded connection with the adjusting slider 22, and the adjusting slider 22 is driven to drive the adjusting rack 20 to move along the length direction of the adjusting slot 21. At the same time, the adjusting slider 22 drives the adjusting rack 20 to mesh with the adjusting gear 19, so that the adjusting gear 19 drives the breakwater 16 to rotate, and the breakwater 16 rotates around the hinge axis to a state parallel to the abutting edge 25. At this time, multiple breakwaters 16 are rotated from low The U-shaped mounting plate 3 is arranged in sequence on one side of the water blocking weir 4, and a plurality of blocking dikes are formed for the large flow of water rushing toward the side of the water blocking weir 4 through the U-shaped mounting plate 3, so as to slow down the flow rate of the water flow and reduce the fluctuation amplitude of the water flow, so that the water flow flows more smoothly to the side of the water blocking weir 4, and pushes the floating block 9 to drive the indicator 12 to cooperate with the scale 13 to indicate the water level, thereby effectively reducing the fluctuation amplitude of the large flow of water passing through the inside of the U-shaped mounting plate 3, further improving the stability of the water flow when passing through the inside of the U-shaped mounting plate 3, so that the reading of the water level is more accurate; When the water flow rushes toward one end of the breakwater 16 and pushes the breakwater 16 to deflect around the hinge axis, the breakwater 16 is caused to come into conflict with one end of the lifting plate 15, thereby strengthening the supporting strength of the breakwater 16, reducing the displacement of the breakwater 16 caused by the impact of the water flow, and effectively improving the stability of the breakwater 16.
[0038] Reference Figure 2 and Figure 4 , Figure 5 A water outlet 26 is provided at the bottom of the wave weakening plate 14 .
[0039] When in use, when a part of the water flow passes through the inside of the U-shaped mounting plate 3 and is blocked by the weak wave plate 14 and remains inside the U-shaped mounting plate 3, the water flow flows along one side of the weak wave plate 14 and passes through the water outlet 26 and flows along the guiding direction of the U-shaped mounting plate 3 to one side of the water blocking weir 4, thereby effectively reducing the accumulation of water flow inside the U-shaped mounting plate 3 and improving the practicability of the device.
[0040] Reference Figure 1 and Figure 3 , Figure 6 A slot 27 is symmetrically provided on one side of the water blocking weir 4, an insert block 28 is inserted inside the slot 27, one end of the insert block 28 is fixedly connected to a triangular support plate 29, a fixing hole 30 is provided at the bottom of the triangular support plate 29, a fixing screw 31 is inserted inside the fixing hole 30, and the fixing screw 31 is threadedly connected to one end of the water channel 1.
[0041] During use, when the experiment needs to simulate a situation where the water flow rate is large, the triangular support plate 29 is first manually pulled to drive the plug block 28 to be inserted into the interior of the slot 27, so that a preliminary fixation is formed between the triangular support plate 29 and the water blocking weir 4, and then one end of the fixing screw 31 is pulled through the fixing hole 30, and the fixing screw 31 is tightened to form a threaded connection with one end of the water channel 1, so that one end of the triangular support plate 29 is fixedly connected to the water channel 1, and forms a conflict with the side of the water blocking weir 4 away from the weak wave plate 14, thereby effectively improving the supporting strength of the water blocking weir 4, reducing the deformation or loosening of the water blocking weir 4 caused by the impact of the water flow, and further improving the detection accuracy of the device.
[0042] Reference Figure 1 and Figure 2 The surfaces of the U-shaped mounting plate 3, the water blocking weir 4, the wave weakening plate 14 and the breakwater 16 are all coated with organic silicon waterproof coating.
[0043] When in use, a silicone waterproof coating is coated on the surface of the U-shaped mounting plate 3, the water blocking weir 4, the weak wave plate 14, and the breakwater 16, so that a waterproof protective layer is formed on the surface of the U-shaped mounting plate 3, the water blocking weir 4, the weak wave plate 14, and the breakwater 16, thereby effectively improving the rust resistance and corrosion resistance of the surface of the U-shaped mounting plate 3, the water blocking weir 4, the weak wave plate 14, and the breakwater 16, and extending the service life of the device.
[0044] The implementation principle of the accurate water flow detection device for the hydraulic engineering model experiment of the present embodiment is as follows: first, by setting the water channel 1 and the U-shaped mounting plate 3 for use in conjunction, the water flow is guided to flow toward the water blocking weir 4 along the length direction of the U-shaped mounting plate 3, and when the water flow passes through the inside of the U-shaped mounting plate 3, it collides with the multiple weak wave plates 14 in sequence, and rises along one side of the multiple weak wave plates 14 in sequence, and then flows over the weak wave plates 14 and continues to flow toward the water blocking weir 4, thereby effectively weakening the impact strength of the water flow and reducing the fluctuation amplitude of the water flow, so that the water flow passing through the U-shaped mounting plate 3 flows more smoothly, and then when the water flow rushes to one side of the weak wave plate 14, the water flow first submerges the bottom of the water blocking weir 4 and enters the inside of the pipe groove 6 through the water inlet 7, and at the same time, the water flow flows into between the multiple lifting plates 15, and forms a support for the bottom of the floating block 9, and at the same time utilizes The balancing port 8 improves the flow efficiency of water flow inside and outside the pipe groove 6, so that the water flow rushing into the pipe groove 6 passes through the balancing port 8 and is at the same water level as the water flow inside the U-shaped mounting plate 3, and then the buoyancy of the water flow is used to push the floating block 9 to float up along the length direction of the pipe groove 6, and at the same time, the floating block 9 pushes the vertical floating rod 10 through the guide hole 11 to drive the indicator 12 to move, and when the water flow rises along one side of the water blocking weir 4 to a position flush with the right angle of the right-angled triangular groove 5, the water flow inside the U-shaped mounting plate 3 flows through the water blocking weir 4 through the right-angled triangular groove 5 and is discharged. At the same time, since the reading of the scale 13 starts counting from the right angle of the right-angled triangular groove 5, when the floating block 9 is pushed up by the water flow, it drives the indicator 12 to move along the length direction of the pipe groove 6, and cooperates with the scale 13 to read the current water level data, so as to judge the flow data in combination with the water level; Then, when the experiment needs to simulate a situation where the water flow is large, the triangular support plate 29 is first manually pulled to drive the plug block 28 to be inserted into the slot 27, so that the triangular support plate 29 and the water blocking weir 4 are initially fixed, and then one end of the fixing screw 31 is pulled through the fixing hole 30, and the fixing screw 31 is tightened to form a threaded connection with one end of the water channel 1, so that one end of the triangular support plate 29 is fixedly connected to the water channel 1 and forms a conflict with the side of the water blocking weir 4 away from the weak wave plate 14, thereby effectively improving the support strength of the water blocking weir 4 and reducing the deformation or loosening of the water blocking weir 4 caused by the impact of the water flow; Then, by manually turning the knob 24, the adjusting screw 23 is driven to form a threaded connection with the adjusting slider 22, and the adjusting slider 22 is driven to drive the adjusting rack 20 to move along the length direction of the adjusting slide 21, and at the same time, the adjusting slider 22 drives the adjusting rack 20 to mesh with the adjusting gear 19, so that the adjusting gear 19 drives the breakwater 16 to rotate, and the breakwater 16 rotates around the hinge axis to a state parallel to the abutting edge 25. At this time, multiple breakwaters 16 are arranged from low to high on one side of the water blocking weir 4, and multiple blocking dikes are formed for the large flow of water passing through the U-shaped mounting plate 3 and rushing to one side of the water blocking weir 4, so as to slow down the flow rate of the water flow, reduce the fluctuation amplitude of the water flow, make the water flow more smoothly flow to one side of the water blocking weir 4, and push the float block 9 to drive the indicator 12 to cooperate with the scale 13 to indicate the water level.
Claims
1. A device for accurately detecting water flow in a hydraulic engineering model experiment, comprising a water channel (1), characterized in that: The middle section of the water channel (1) is provided with an embedded groove (2), the embedded groove (2) is fixedly connected with a U-shaped mounting plate (3), one end of the U-shaped mounting plate (3) is fixedly connected with a water blocking weir (4), the top of the water blocking weir (4) is provided with a right-angled triangular groove (5), one end of the water blocking weir (4) is provided with a pipe groove (6), the bottom of the pipe groove (6) is provided with a water inlet (7), one side of the pipe groove (6) is evenly provided with a plurality of balancing ports (8), and the pipe groove (6) is inserted with a A floating block (9), wherein a vertical floating rod (10) is fixedly connected to the top of the floating block (9), a guide hole (11) is opened at the top of the pipe groove (6), one end of the vertical floating rod (10) passes through the guide hole (11) and is fixedly connected to an indicator mark (12), a scale (13) is fixedly connected to the top of the water blocking weir (4), and the reading of the scale (13) starts from the right angle of the right-angle triangular groove (5), and a plurality of weak wave plates (14) are evenly fixedly connected inside the U-shaped mounting plate (3).
2. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 1 is characterized by: A plurality of lifting plates (15) are evenly and fixedly connected to the inner bottom of the pipe trough (6), and the floating block (9) is installed above the lifting plates (15).
3. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 1 is characterized in that: The inner bottom of the U-shaped mounting plate (3) is evenly hinged with a plurality of breakwaters (16), and the plurality of breakwaters (16) are arranged in order from low to high. A driving slide groove (17) is provided inside the U-shaped mounting plate (3), and a mounting groove (18) adapted to the breakwater (16) is provided at the bottom of the driving slide groove (17). An adjusting gear (19) is fixedly connected to one end of the breakwater (16) extending into the mounting groove (18), and an adjusting rack (20) meshing with the adjusting gear (19) is slidably connected inside the driving slide groove (17), and an adjusting component for driving the adjusting rack (20) to move is installed inside the driving slide groove (17).
4. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 3 is characterized by: The adjustment assembly comprises an adjustment slot (21) formed at one end of the driving slot (17); one end of the adjustment rack (20) is fixedly connected to an adjustment slider (22); one end of the adjustment slider (22) is slidably connected to the inside of the adjustment slot (21); an adjustment screw (23) threadedly connected to the adjustment slider (22) is rotatably connected to the inside of the adjustment slot (21); one end of the adjustment screw (23) passes through the U-shaped mounting plate (3) and is fixedly connected to a knob (24).
5. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 3 is characterized by: A plurality of abutment edges (25) adapted to the breakwater (16) are symmetrically and fixedly connected to the inner side of the U-shaped mounting plate (3).
6. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 1 is characterized by: A water outlet (26) is provided at the bottom of the wave weakening plate (14).
7. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 1 is characterized by: A slot (27) is symmetrically provided on one side of the water blocking weir (4), an insert block (28) is inserted into the slot (27), one end of the insert block (28) is fixedly connected to a triangular support plate (29), a fixing hole (30) is provided at the bottom of the triangular support plate (29), a fixing screw (31) is inserted into the fixing hole (30), and the fixing screw (31) is threadedly connected to one end of the water channel (1).
8. The device for accurately detecting water flow rate for hydraulic engineering model experiments according to claim 3 is characterized by: The surfaces of the U-shaped mounting plate (3), the water blocking weir (4), the wave weakening plate (14), and the breakwater (16) are all coated with organic silicon waterproof coating.