Surface water flow measuring device

Abstract

The utility model discloses a surface water flow measuring device, and relates to the technical field of water flow detection. The device comprises a water blocking plate, a triangular opening is formed in the top of the water blocking plate, buoyancy sliding bins are symmetrically formed in the water blocking plate, water inlets communicating with the triangular opening are formed in the bottoms of the buoyancy sliding bins, buoyancy blocks are slidably inserted into the buoyancy sliding bins, one ends of the buoyancy blocks are fixedly connected with transmission rods, and one ends of the transmission rods penetrate through the water blocking plate; and an indicator is fixedly connected. The buoyancy of water flow is utilized, when the water flow overflows the triangular opening, the buoyancy block is ejected out in the length direction of the buoyancy sliding bin, and therefore the buoyancy block is matched with the transmission rod to push the indicator to move in the indication direction of the water level mark, and the change value of the water level can be observed conveniently; the influence of visual angle errors and water surface fluctuation during reading is effectively reduced, and the measurement precision is improved.

Description

Technical Field

[0001] This application relates to the field of water flow detection technology, and in particular to a surface water flow measurement device. Background Technology

[0002] Water flow measurement plays a crucial role in water resource management, irrigation systems, environmental monitoring, and industrial production. The triangular weir, a common water flow measurement device, is widely used for measuring water flow in open channels due to its simple structure, low cost, and ease of installation. The triangular weir calculates the flow rate by measuring the water level height as the water flows through a weir of a specific shape. However, in practical applications, the accuracy and stability of water level measurement directly affect the flow rate calculation results; therefore, improving the accuracy of water level measurement has become a key research issue.

[0003] Traditional triangular weirs typically consist of a V-shaped notch and a vertical weir plate. Flow rate is calculated by measuring the water level as it passes through the V-shaped notch. Water level measurements are usually performed using a scale or sensor, with the scale directly fixed to the weir plate and the water level read manually. To improve measurement accuracy, several improved techniques have been proposed, such as using ultrasonic sensors or laser rangefinders to replace traditional scales, reducing human reading errors. Furthermore, some studies have focused on improving measurement reliability by optimizing the weir shape or introducing automatic calibration mechanisms. However, these methods are often costly or complex to operate, making them difficult to implement in widespread practical applications.

[0004] Traditional triangular weirs have some limitations in water level measurement. First, traditional triangular weir water level measurement relies on manual reading of the scale, and the water level mark needs to be level with the water surface. This makes the reading susceptible to errors in perspective and water surface fluctuations, leading to a decrease in measurement accuracy. Utility Model Content

[0005] The purpose of this application is to address the problem that traditional triangular weir water level measurement relies on manual reading of the scale, and the water level mark needs to be flush with the water surface, which makes the reading susceptible to the influence of perspective error and water surface fluctuation, resulting in a decrease in measurement accuracy. This application provides a surface water flow measurement device.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A surface water flow measuring device includes a water-blocking plate with a triangular opening at the top and symmetrically arranged buoyancy chambers inside. Each buoyancy chamber has a water inlet at its bottom that communicates with the triangular opening. A buoyancy block is slidably inserted inside the buoyancy chamber. A transmission rod is fixedly connected to one end of each buoyancy block, and one end of the transmission rod passes through the water-blocking plate and is fixedly connected to an indicator. A triangular mounting block is symmetrically fixedly connected to the top of the water-blocking plate, and a water level indicator adapted to the indicator is provided on one side of each triangular mounting block.

[0008] By adopting the above technical solution, and by setting up the buoyancy block in conjunction with the transmission rod, indicator, and water level mark, it is convenient to utilize the buoyancy of the water flow. When the water flows over the triangular opening, it pushes the buoyancy block out along the length of the buoyancy chamber. This allows the buoyancy block, in conjunction with the transmission rod, to push the indicator along the direction indicated by the water level mark, making it easier to observe changes in water level. This effectively reduces the impact of viewing angle errors and water surface fluctuations on the readings, and improves measurement accuracy.

[0009] Furthermore, a filter screen is fixedly connected inside the water inlet.

[0010] By adopting the above technical solution, and by setting up a filter screen in conjunction with the water inlet, it is easy to intercept and filter the water flowing into the buoyancy chamber through the water inlet, so as to reduce the situation where the water carries foreign objects and causes blockage inside the buoyancy chamber, thereby affecting the measurement accuracy.

[0011] Furthermore, an inverted L-shaped wall mount is symmetrically installed on one end of the water-blocking plate. A slot is provided on one side of the inverted L-shaped wall mount, and one end of the water-blocking plate is inserted into the slot. A positioning hole is provided on the top of the inverted L-shaped wall mount, and a positioning screw is inserted into the positioning hole.

[0012] By adopting the above technical solution, and by setting up an inverted L-shaped wall mount and slot one, positioning hole and positioning screw in cooperation, it is easy to pull the positioning screw through the positioning hole to form a threaded fixed connection with the top of the water tank, and then pull the water blocking plate into the inside of slot one to form an interception inside the water tank. This facilitates the rapid installation of the water blocking plate and effectively improves the practicality of the device.

[0013] Furthermore, the top of the inverted L-shaped wall mount is provided with a locking groove, and a locking slider is slidably connected inside the locking groove. One end of the locking slider is fixedly connected to a pressing block, and the pressing block abuts against the top of the water-blocking plate.

[0014] By adopting the above technical solution, and by setting the locking groove in conjunction with the locking slider and the pressing block, it is easy to push the locking slider to drive the pressing block to form an abutment with the top of the water-blocking plate along the length direction of the locking groove, so as to fix the water-blocking plate in the slot one, effectively improving the installation stability of the water-blocking plate.

[0015] Furthermore, one side of the locking slider is provided with friction texture.

[0016] By adopting the above technical solution and using the combination of locking slider and friction texture, the friction force on the surface of locking slider is effectively improved, further enhancing the applicability of the device.

[0017] Furthermore, one end of the water-blocking plate is symmetrically provided with a second slot, and a triangular abutment block is inserted into the inside of the second slot.

[0018] By adopting the above technical solution, and by setting the second slot and the triangular abutment block to work together, it is easy to pull the triangular abutment block into the interior of the second slot, and the triangular abutment block forms a triangular support structure on the back of the water blocking plate, which effectively improves the support strength of the device.

[0019] Furthermore, an extended base plate is symmetrically fixedly connected to the bottom of the triangular abutment block.

[0020] By adopting the above technical solution, and by setting up the extended base plate and the triangular abutment block for coordinated use, the contact area between the triangular abutment block and the bottom of the water tank is effectively increased, further improving the stability of the device.

[0021] Furthermore, a rubber strip is symmetrically fixedly connected inside the second slot, and one end of the triangular abutment block abuts against the rubber strip.

[0022] By adopting the above technical solution and using the rubber strip in conjunction with the triangular abutment block, the friction between the triangular abutment block and the second slot is effectively improved, thereby enhancing the installation stability of the triangular abutment block.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. By setting up a buoyancy block in conjunction with a transmission rod, indicator, and water level marker, the buoyancy of the water flow is utilized. When the water flows over the triangular opening, it pushes the buoyancy block out along the length of the buoyancy chamber. This causes the buoyancy block, in conjunction with the transmission rod, to push the indicator along the direction indicated by the water level marker, making it easier to observe changes in water level. This effectively reduces the impact of viewing angle errors and water surface fluctuations on the readings, thus improving measurement accuracy.

[0025] 2. By setting up an inverted L-shaped wall mount and using it in conjunction with slot one, positioning hole, and positioning screw, it is easy to pull the positioning screw through the positioning hole to form a threaded connection with the top of the water tank. Then, the water-blocking plate is pulled into the interior of slot one and forms an interception inside the water tank. This facilitates the quick installation of the water-blocking plate and effectively improves the practicality of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the main body of the device in this application.

[0027] Figure 2 This is a schematic diagram of the internal structure of the buoyancy sump in this application.

[0028] Figure 3 This is a schematic diagram of the internal structure of slot two in this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Water-blocking plate; 2. Triangular opening; 3. Buoyancy chamber; 4. Water inlet; 5. Buoyancy block; 6. Transmission rod; 7. Indicator; 8. Triangular mounting block; 9. Water level indicator; 10. Filter screen; 11. Inverted L-shaped wall mount; 12. Slot one; 13. Positioning hole; 14. Positioning screw; 15. Locking groove; 16. Locking slider; 17. Pressing block; 18. Friction texture; 19. Slot two; 20. Triangular abutment block; 21. Extension base plate; 22. Rubber strip. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 —3 provides further detailed description of this application.

[0032] This application discloses a surface water flow measurement device.

[0033] Reference Figure 1 and Figure 2 A surface water flow measuring device includes a water-blocking plate 1, a triangular opening 2 at the top of the water-blocking plate 1, and symmetrically arranged buoyancy chambers 3 inside the water-blocking plate 1. A water inlet 4 communicating with the triangular opening 2 is opened at the bottom of the buoyancy chamber 3. A buoyancy block 5 is slidably inserted inside the buoyancy chamber 3. A transmission rod 6 is fixedly connected to one end of the buoyancy block 5. One end of the transmission rod 6 passes through the water-blocking plate 1 and is fixedly connected to an indicator 7. A triangular mounting block 8 is symmetrically fixedly connected to the top of the water-blocking plate 1. A water level indicator 9 adapted to the indicator 7 is provided on one side of the triangular mounting block 8.

[0034] A filter screen 10 is fixedly connected inside the water inlet 4.

[0035] In use, when the water flows over the triangular opening 2 and passes one side of the water-blocking plate 1, the water flows through the inlet 4 under the action of gravity and enters the interior of the buoyancy chamber 3. At the same time, the buoyancy of the water pushes the buoyancy block 5 to move upward along the length of the buoyancy chamber 3. The buoyancy block 5 pushes the transmission rod 6 to move the indicator 7 along the length of the buoyancy chamber 3. The indicator 7, together with the water level mark 9, indicates the water level height value. This effectively reduces the influence of viewing angle error and water surface fluctuation when reading, and improves the measurement accuracy. In addition, the filter screen 10 filters and intercepts the water flowing into the buoyancy chamber 3 through the inlet 4, so as to reduce the possibility of foreign objects entering the buoyancy chamber 3 and causing blockage, which would reduce the measurement accuracy.

[0036] Reference Figure 1 and Figure 2 One end of the water-blocking plate 1 is symmetrically equipped with an inverted L-shaped wall mount 11. A slot 12 is provided on one side of the inverted L-shaped wall mount 11. One end of the water-blocking plate 1 is inserted into the slot 12. A positioning hole 13 is provided on the top of the inverted L-shaped wall mount 11. A positioning screw 14 is inserted into the positioning hole 13.

[0037] Among them, the top of the inverted L-shaped wall mount 11 is provided with a locking groove 15, and a locking slider 16 is slidably connected inside the locking groove 15. One end of the locking slider 16 is fixedly connected with a pressing block 17, and the pressing block 17 abuts against the top of the water blocking plate 1.

[0038] Furthermore, friction texture 18 is provided on one side of the locking slider 16.

[0039] In use, firstly, friction texture 18 is set to increase the friction of the locking slider 16 surface. Then, the two inverted L-shaped wall mounts 11 are pulled to fit against the two sides of the water tank and inserted, so that the bottom of the inverted L-shaped wall mounts 11 abuts against the bottom of the water tank. Then, the positioning screw 14 is pulled through the positioning hole 13 and threadedly fixed to the top of the water tank. Next, one end of the water blocking plate 1 is pulled to insert into the slot 12 and form an interception inside the water tank. Then, the locking slider 16 is manually pushed to drive the pressing block 17 to move along the length of the locking groove 15, so that one end of the pressing block 17 moves to the top of the water blocking plate 1, and at the same time, the pressing block 17 abuts against the water blocking plate 1, so that the water blocking plate 1 is quickly fixed and intercepted inside the water tank, effectively improving the installation efficiency of the device.

[0040] Reference Figure 1 - Figure 3 One end of the water-blocking plate 1 is symmetrically provided with slot 2 19, and a triangular abutment block 20 is inserted into the slot 2 19;

[0041] Among them, the bottom of the triangular contact block 20 is symmetrically fixedly connected with an extension base plate 21;

[0042] Furthermore, a rubber strip 22 is symmetrically fixedly connected inside the slot 2 19, and one end of the triangular abutment block 20 abuts against the rubber strip 22.

[0043] When in use, when the water volume inside the tank is large, the triangular abutment block 20 is manually pulled into the slot 2 19, causing the triangular abutment block 20 to compress the rubber strip 22 and deform. At the same time, the elasticity of the rubber strip 22 pushes out the triangular abutment block 20 and forms a compression fixation with the triangular abutment block 20. This causes the triangular abutment block 20 to drive the extended base plate 21 to abut against the bottom of the tank, thereby enabling the triangular abutment block 20 to support the back of the water blocking plate 1, effectively improving the support strength and stability of the water blocking plate 1.

[0044] The implementation principle of the surface water flow measurement device in this embodiment is as follows: First, friction texture 18 is set to increase the friction of the surface of locking slider 16. Then, two inverted L-shaped wall mounts 11 are pulled to fit into the two sides of the water tank respectively, so that the bottom of the inverted L-shaped wall mounts 11 abuts against the bottom of the water tank. Then, the positioning screw 14 is pulled through the positioning hole 13 and is threadedly fixed to the top of the water tank. Next, one end of the water blocking plate 1 is pulled to insert into the slot 12 and form an interception inside the water tank. Then, the locking slider 16 is manually pushed to drive the pressing block 17 to move along the length direction of the locking groove 15, so that one end of the pressing block 17 moves to the top of the water blocking plate 1, and at the same time, the pressing block 17 abuts against the water blocking plate 1, so that the water blocking plate 1 is quickly fixed and intercepted inside the water tank.

[0045] Then, when the water flows over the triangular opening 2 and passes one side of the water-blocking plate 1, the water flows through the inlet 4 under the action of gravity and enters the interior of the buoyancy chamber 3. At the same time, the buoyancy of the water pushes the buoyancy block 5 to move upward along the length of the buoyancy chamber 3. Simultaneously, the buoyancy block 5 pushes the transmission rod 6 to drive the indicator 7 to move along the length of the buoyancy chamber 3, and the indicator 7, in conjunction with the water level mark 9, indicates the water level height value.

Claims

1. A surface water flow measuring device comprising a water stop plate (1), characterized in that: The top of the water blocking plate (1) is provided with a triangular port (2), and the inside of the water blocking plate (1) is symmetrically provided with a buoyancy sliding bin (3), the bottom of the buoyancy sliding bin (3) is provided with a water inlet (4) communicated with the triangular port (2), the inside of the buoyancy sliding bin (3) is slidably provided with a buoyancy block (5), one end of the buoyancy block (5) is fixedly connected with a transmission rod (6), one end of the transmission rod (6) penetrates through the water blocking plate (1) and is fixedly connected with an indicating mark (7), the top of the water blocking plate (1) is symmetrically fixedly connected with a triangular mounting block (8), one side of the triangular mounting block (8) is provided with a water level mark (9) matched with the indicating mark (7).

2. A surface water flow measuring device according to claim 1, characterised in that: The inside of the water inlet (4) is fixedly connected with a filter screen (10).

3. A surface water flow measuring device as claimed in claim 1, characterised in that: One end of the water blocking plate (1) is symmetrically provided with an inverted L-shaped wall hanging (11), one side of the inverted L-shaped wall hanging (11) is provided with a slot one (12), one end of the water blocking plate (1) is inserted into the slot one (12), the top of the inverted L-shaped wall hanging (11) is provided with a positioning hole (13), and the inside of the positioning hole (13) is provided with a positioning screw (14).

4. A surface water flow measuring device according to claim 3, characterised in that: The top of the inverted L-shaped wall hanging (11) is provided with a locking sliding groove (15), the inside of the locking sliding groove (15) is slidably connected with a locking sliding block (16), one end of the locking sliding block (16) is fixedly connected with a pressing block (17), and the pressing block (17) is in abutment with the top of the water blocking plate (1).

5. A surface water flow measuring device according to claim 4, characterised in that: One side of the locking sliding block (16) is provided with a friction pattern (18).

6. A surface water flow measuring device as claimed in claim 1, characterised in that: One end of the water blocking plate (1) is symmetrically provided with a slot two (19), and the inside of the slot two (19) is provided with a triangular abutment block (20).

7. A surface water flow measuring device according to claim 6, characterised in that: The bottom of the triangular abutment block (20) is symmetrically fixedly connected with an expansion bottom plate (21).

8. A surface water flow measuring device according to claim 6, characterised in that: The inside of the slot two (19) is symmetrically fixedly connected with a rubber strip (22), and one end of the triangular abutment block (20) is in abutment with the rubber strip (22).

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