Three-dimensional adjustable variable open channel flow calibration device

Abstract

The present invention relates to a three-dimensional adjustable variable open channel flow calibration device, comprising a water outlet box, a drainage trough and a variable channel body, wherein the variable channel body is located between the water outlet box and the drainage trough; the variable channel body comprises two channel bottoms and two channel walls, wherein the two channel walls are respectively located on the two channel bottoms, and a receiving groove arranged along the extension direction of the variable channel body is provided between the two channel bottoms, the spacing between the two channel walls is adjustable, the angle between each channel wall and its corresponding channel bottom is adjustable, and the height difference between the head and tail ends of each channel bottom is adjustable; the two sides of the waterproof cloth are respectively fixed on the two channel walls, the middle part of the waterproof cloth covers the channel bottom and covers the receiving groove, and a cloth collecting mechanism is installed in the receiving groove. The variable channel body can adjust the width, slope, and drop of the water channel, and has high simulation compared with the actual water channel, simulates a hydrological environment close to the real one, and has high accuracy in the detection result.

Description

Technical Field

[0001] The invention relates to the technical field of flow meter calibration equipment, in particular to a three-dimensional adjustable variable open channel flow calibration device. Background Art

[0002] Ultrasonic open channel flowmeters need to be calibrated before use to ensure the accuracy of the test results. Patent application number 201710469984.1, open channel and pipeline sewage flow integrated standard device, including water flow control system, open channel detection section, pipeline detection section, inverted U-shaped pipe and return channel. The open channel of this application is a fixed open channel, that is, the width, slope and drop of the channel cannot be adjusted. Therefore, compared with the actual channel, the simulation is poor, it cannot simulate the real hydrological environment, and the test results are inaccurate. Summary of the invention

[0003] The present invention aims at the deficiencies of the prior art and provides a three-dimensional adjustable variable open channel flow calibration device.

[0004] The present invention is achieved through the following technical scheme, providing a three-dimensional adjustable variable open channel flow calibration device, including a water outlet box, a drainage trough and a variable channel body, the variable channel body is located between the water outlet box and the drainage trough, and a drainage port for discharging water to the variable channel body is provided on the water outlet box; a water inlet for water in the variable channel body to enter is provided on the drainage trough; the variable channel body includes two channel bottoms and two channel walls, the two channel walls are respectively located on the two channel bottoms, and a receiving groove is provided between the two channel bottoms along the extension direction of the variable channel body, the spacing between the two channel walls is adjustable, the angle between each channel wall and its corresponding channel bottom is adjustable, and the height difference at the head and tail ends of each channel bottom is adjustable; the two sides of the waterproof cloth are respectively fixed on the two channel walls, the middle part of the waterproof cloth covers the channel bottom and covers the receiving groove, and a cloth collecting mechanism is installed in the receiving groove.

[0005] Preferably, each channel bottom includes a bottom support frame with a surface covered panel, each channel wall includes a side support frame with a surface covered panel, and each side support frame is connected to the bottom support frame through an adjustment device; the adjustment device includes multiple groups of adjustment mechanisms, and the multiple groups of adjustment mechanisms are arranged in sequence along the extension direction of the variable channel body.

[0006] Preferably, each group of adjustment mechanisms includes a sliding seat slidably connected to the bottom support frame, a sliding groove for the sliding seat to slide is provided on the bottom support frame, the lower part of the side support frame is hinged to one end of the sliding seat, the push rod of the angle adjustment cylinder is hinged to the upper part of the side support frame, and the cylinder seat of the angle adjustment cylinder is hinged to the other end of the sliding seat; the cylinder seat of the channel width adjustment cylinder is fixedly connected to the bottom support frame, and the push rod of the channel width adjustment cylinder is fixedly connected to the sliding seat. The distance between the two channel walls can be adjusted by controlling the channel width adjustment cylinder, and the angle between the channel wall and its corresponding channel bottom can be adjusted by controlling the angle adjustment cylinder.

[0007] Preferably, a cover plate is buckled at the storage slot, and the cloth collecting mechanism is located below the cover plate.

[0008] Preferably, each bottom support frame is provided with a lifting cylinder at both ends. By adjusting the lifting cylinder, the height difference between the two ends of the channel bottom can be adjusted, which can simulate the height difference of the actual channel on the one hand, and adjust the water flow speed on the other hand.

[0009] Preferably, an electric flap gate for controlling drainage is provided on the drainage trough, and the electric flap gate is used to adjust the water level in the variable channel body.

[0010] The beneficial effects of the present invention are:

[0011] The variable channel body can adjust the width, slope, drop, etc. of the channel. Compared with the actual channel, it has high simulation and simulates the real hydrological environment, and the detection results are highly accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an isometric view of the overall structure of the present invention;

[0013] Figure 2 It is an isometric view of the variable channel body of the present invention;

[0014] Figure 3 yes Figure 2 The schematic diagram of the local enlarged structure at E in the middle;

[0015] Figure 4 This is a schematic diagram of the end surface structure of the variable channel body of the present invention;

[0016] Figure 5 This is a physical picture of the variable channel body of the present invention from one viewing angle;

[0017] Figure 6 This is a physical picture of the variable channel body of the present invention from another perspective;

[0018] As shown in the figure:

[0019] 1. Water outlet box, 2. Drainage trough, 3. Water inlet, 4. Electric flap gate, 5. Variable channel body, 6. Bottom support frame, 7. Storage trough, 8. Sliding seat, 9. Angle adjustment cylinder, 10. Channel width adjustment cylinder, 11. Side support frame, 12. Lifting cylinder, 13. Bracket, 14. Clamping rod, 15. Cross arm, 16. Bidirectional cylinder, 17. Waterproof cloth. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0021] like Figure 1-6 As shown, the present invention includes a water outlet box 1, a drainage trough 2 and a variable channel body 5. The variable channel body 5 is located between the water outlet box 1 and the drainage trough 2. The water outlet box 1 is provided with a drainage port for draining water to the variable channel body 5. The drainage trough 2 is provided with a water inlet 3 for water in the variable channel body 5 to enter. The drainage trough 2 is provided with an electric flap gate 4 for controlling drainage. The electric flap gate is an existing structure.

[0022] The variable channel body 5 includes two channel bottoms and two channel walls. The two channel walls are respectively located on the two channel bottoms. A receiving groove 7 is provided between the two channel bottoms along the extension direction of the variable channel body 5. The spacing between the two channel walls is adjustable, the angle between each channel wall and its corresponding channel bottom is adjustable, and the height difference between the head and tail ends of each channel bottom is adjustable.

[0023] Each channel bottom includes a bottom support frame 6 with a surface covered with panels, and each channel wall includes a side support frame 11 with a surface covered with panels, and each side support frame 11 is connected to the bottom support frame 6 through an adjustment device. The adjustment device includes multiple groups of adjustment mechanisms, which are arranged in sequence along the extension direction of the variable channel body 5; each group of adjustment mechanisms includes a sliding seat 8 slidably connected to the bottom support frame 6, and a sliding groove for sliding the sliding seat 8 is provided on the bottom support frame 6, the lower part of the side support frame 11 is hinged to one end of the sliding seat 8, the push rod of the angle adjustment cylinder 9 is hinged to the upper part of the side support frame 11, and the cylinder seat of the angle adjustment cylinder 9 is hinged to the other end of the sliding seat 8. The cylinder seat of the channel width adjustment cylinder 10 is fixedly connected to the bottom support frame 6, and the push rod of the channel width adjustment cylinder 10 is fixedly connected to the sliding seat 8. By controlling the channel width adjustment cylinder 10, the distance between the two channel walls can be adjusted, and by controlling the angle adjustment cylinder 9, the angle between the channel wall and its corresponding channel bottom can be adjusted.

[0024] The two sides of the waterproof cloth 17 are fixed on the two channel walls respectively, the middle part of the waterproof cloth 17 covers the channel bottom and covers the storage slot 7, and a cloth collecting mechanism is installed in the storage slot 7. The cloth collecting mechanism includes a bracket 13 fixed to the bottom surface of the storage slot 7 and arranged along the extension direction of the variable channel body 5, and a clamping rod 14 is arranged on both sides of the bracket 13. There is a gap between each clamping rod 14 and the bottom support frame 6 for the waterproof cloth 17 to fall into, and the two clamping rods 14 are connected to the bracket 13 through a supporting device. The supporting device includes a plurality of bidirectional oil cylinders 16 and a plurality of cross arms 15, the bidirectional oil cylinders 16 and the cross arms 15 are arranged at intervals, and the two push rods of each bidirectional oil cylinder 16 are fixedly connected to the two clamping rods 14 respectively. Each cross arm 15 includes a first rotating arm and a second rotating arm, the first rotating arm and the second rotating arm are hinged; one end of the first rotating arm is hinged to one of the clamping rods 14, and the other end of the first rotating arm is slidably connected to the other clamping rod 14; one end of the second rotating arm is hinged to one of the clamping rods 14, and the other end of the second rotating arm is slidably connected to the other clamping rod 14. The sliding connection method here is: a sliding groove is provided on the clamping rod 14, a sliding block is provided in the sliding groove, and the first rotating arm and the second rotating arm are both connected to the sliding block. This sliding connection form is a commonly used sliding form in the cross lifting structure.

[0025] When the distance between the two channel walls becomes smaller, the two channel walls approach the storage slot 7, and the two channel walls push the waterproof cloth 17 so that the excess part of the waterproof cloth 17 falls into the gaps on both sides. When the positions of the two channel walls are adjusted, the two-way oil cylinder 16 is operated to make the two clamping rods 14 squeeze the waterproof cloth 17 falling into the gaps on both sides, that is, to seal the waterproof cloth 17 in the gaps to prevent water from entering the waterproof cloth 17 in the gaps. In order to prevent the waterproof cloth 17 above the storage slot 7 from sinking due to the gravity of the water, a cover plate is buckled at the storage slot 7 (in order to clearly show the structure of the cloth collecting mechanism, the cover plate is not marked in the attached figure), and the cloth collecting mechanism is located below the cover plate, and the cover plate is connected to the bracket 13. There is a gap between the cover plate and the bottom support frame 6 for the waterproof cloth 17 to fall into.

[0026] A lifting cylinder 12 is installed at both ends of each bottom support frame 6. By adjusting the lifting cylinder 12, the height difference between the two ends of the channel bottom can be adjusted. The adjustment of the height difference between the two ends of the channel bottom can simulate the actual height difference of the channel on the one hand, and can adjust the water flow speed on the other hand.

[0027] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. Three-dimensional adjustable variable open channel flow calibration device, characterized by: It includes a water outlet box, a drainage trough and a variable channel body, and the variable channel body is located between the water outlet box and the drainage trough; the variable channel body includes two channel bottoms and two channel walls, the two channel walls are respectively located on the two channel bottoms, and a storage groove arranged along the extension direction of the variable channel body is provided between the two channel bottoms, the spacing between the two channel walls is adjustable, the angle between each channel wall and its corresponding channel bottom is adjustable, and the height difference at both ends of each channel bottom is adjustable; the two sides of the waterproof cloth are respectively fixed on the two channel walls, the middle part of the waterproof cloth covers the channel bottom and covers the storage groove, and a cloth collecting mechanism is installed in the storage groove; each channel bottom includes a bottom support frame with a surface covering panel, and each channel wall includes a side support frame with a surface covering panel, and each side support frame is connected to the bottom support frame through an adjusting device; the adjusting device includes a plurality of groups of adjusting mechanisms, and the plurality of groups of adjusting mechanisms are arranged in sequence along the extension direction of the variable channel body The cam is an adjustable gear, and the adjustable gear is connected to the bottom support frame by a plurality of adjustment means. The adjustment means is configured to adjust the position of the adjustable gear and the adjustment means of the adjusting gear. The adjustment means is configured to adjust the position of the adjustable gear and the adjustment means of the adjusting gear. The adjustment means is configured to adjust the position of the adjustable gear and the adjustment means of the adjusting gear.

2. The three-dimensional adjustable variable open channel flow calibration device according to claim 1 is characterized in that: A cover plate is buckled at the storage slot, and a cloth collecting mechanism is located below the cover plate.

3. The three-dimensional adjustable variable open channel flow calibration device according to claim 1 is characterized in that: Lifting cylinders are installed at both ends of each bottom support frame.

4. The three-dimensional adjustable variable open channel flow calibration device according to claim 1 is characterized in that: An electric flap gate for controlling drainage is provided on the drainage trough.

5. The three-dimensional adjustable variable open channel flow calibration device according to claim 1 is characterized in that: A water outlet for discharging water to the variable channel body is provided on the water outlet box, and a water inlet for water in the variable channel body to enter is provided on the drainage groove.

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