Reservoir dam leakage flow meter

Abstract

The utility model relates to the technical field of reservoir dams, and provides a reservoir dam leakage flow meter which comprises a clamping mechanism (1), a corner mechanism (2) connected to the clamping mechanism (1), a mounting frame (3) connected to the corner mechanism (2), two sets (4) arranged on the mounting frame (3) in a sliding mode, a transverse plate (5) fixedly connected between the sets (4), a telescopic rod (6) fixedly connected to the transverse plate (5), and a floating plate (7) fixedly connected to the free end of the telescopic rod (6). A flow meter body (8) is mounted on the floating plate (7); a winding mechanism (9) is arranged on the transverse plate (5), a pull rope (10) is wound on the winding mechanism (9), and the free end of the pull rope (10) is fixedly connected to the floating plate (7).

Description

Technical Field

[0001] This utility model relates to the field of reservoir dam technology, and more specifically, to a reservoir dam seepage flow meter. Background Technology

[0002] Most of my country's numerous small and medium-sized reservoirs were constructed using earth and stone materials between the 1950s and 1970s. Due to the limited density of earth-rock dams, leakage always exists to varying degrees. When the upstream water level changes, the flow rate of water leaking from the dam also changes. After many years of operation, the internal structure of the dam gradually becomes more uniform and stable, so the pattern of seepage flow with upstream water level changes also tends to stabilize. Therefore, the magnitude of seepage becomes an important indicator of the safe operation of the reservoir dam. According to the technical specifications for safety monitoring of earth-rock dams, staff must check the dam's seepage flow daily, increasing their workload.

[0003] The flow meter for seepage measurement of a reservoir dam disclosed in announcement number CN213274435U has the following characteristics: when the flow meter is lifted upward after use and put away, the slider is slidably connected to the slide rail. Under the influence of gravity, lifting the flow meter upward will cause the flow meter body to move downward. The two slide rails slide relative to each other to the maximum length before stopping. This design results in a lot of time and effort to adjust the position of the slide rail and slider during disassembly, which is difficult and affects the disassembly efficiency. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a reservoir dam seepage flow meter that can reduce disassembly difficulty and improve disassembly efficiency.

[0005] A flow meter for seepage measurement in a reservoir dam includes a clamping mechanism, a corner mechanism connected to the clamping mechanism, a mounting frame connected to the corner mechanism, two components sliding on the mounting frame, a horizontal plate fixed between the components, a telescopic rod fixed to the horizontal plate, a float plate fixed to the free end of the telescopic rod, and a flow meter body mounted on the float plate; a winding mechanism is provided on the horizontal plate, a pull rope is wound on the winding mechanism, and the free end of the pull rope is fixed to the float plate.

[0006] Furthermore, the winding mechanism includes two first vertical plates fixed to the horizontal plate, a winding roller rotatably connected between the two first vertical plates, a first servo motor mounted on the horizontal plate, and the output end of the first servo motor fixedly connected to the rotating shaft of the winding roller.

[0007] Furthermore, the pull rope is a nylon rope.

[0008] Furthermore, the winding mechanism also includes two second vertical plates fixed to the horizontal plate, with a pulley rotatably connected between the two second vertical plates, and the pull rope wound around the pulley.

[0009] Furthermore, a second servo motor is mounted on the horizontal plate, and a gear is fixedly connected to the output end of the second servo motor. A toothed plate is fixedly connected to the inner side of the mounting bracket, and the gear meshes with the toothed plate.

[0010] Furthermore, the clamping mechanism includes a fixed frame, a movable clamping plate that slides within the fixed frame, and a screw rod screwed onto the fixed frame, one end of which is rotatably connected to the movable clamping plate.

[0011] Furthermore, the fixing frame is U-shaped.

[0012] Furthermore, rubber strips are fixedly connected to both the movable clamp and the fixed frame.

[0013] Furthermore, the cornering mechanism includes a turntable rotatably connected to the fixed frame, and the mounting frame is fixedly connected to the turntable.

[0014] Furthermore, the turntable has multiple positioning holes along its circumference, and the fixing frame has a positioning rod inserted into it, which is also inserted into the positioning hole at a suitable position.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the output of the first servo motor causes the winding roller to rotate, which, in conjunction with gravity, causes the float to descend to the water surface and float on it (keeping the pull rope in a non-straight state, leaving room for the water surface to descend). The flow meter body monitors the water flow. When retracting and disassembling, the first servo motor is controlled to wind up the pull rope, thereby causing the float and flow meter body to rise, the telescopic rod to shorten, reducing the difficulty of disassembly and improving the disassembly efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a reservoir dam seepage flow meter;

[0019] Figure 2 This is a partial structural diagram of a reservoir dam seepage flow meter;

[0020] Figure 3 This is a schematic diagram of the clamping mechanism.

[0021] In the diagram: 1. Clamping mechanism; 11. Fixed frame; 12. Moving clamping plate; 13. Screw; 14. Rubber strip; 2. Corner mechanism; 21. Turntable; 22. Positioning hole; 23. Positioning rod; 24. Handle; 3. Mounting frame; 4. Kit; 5. Horizontal plate; 6. Telescopic rod; 7. Float; 8. Flow meter body; 9. Winding mechanism; 91. First vertical plate; 92. Winding roller; 93. First servo motor; 94. Second vertical plate; 95. Pulley; 10. Pull rope; 15. Second servo motor; 16. Gear; 17. Toothed plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific implementation examples:

[0024] like Figure 1-3 As shown, a flow meter for reservoir dam seepage includes a clamping mechanism 1, a cornering mechanism 2 connected to the clamping mechanism 1, a mounting frame 3 connected to the cornering mechanism 2, two sets 4 sliding on the mounting frame 3, a horizontal plate 5 fixedly connected between the two sets 4, a telescopic rod 6 fixedly connected to the lower end of the horizontal plate 5 (the telescopic rod 6 has no driving component and can extend by gravity alone), a float 7 fixedly connected to the free end of the telescopic rod 6, and a flow meter body 8 mounted on the float 7. The flow meter is clamped and fixed in a suitable position by the clamping mechanism 1, and the position of the flow meter body 8 is changed by changing the direction of the mounting frame 3 and the horizontal plate 5 by the cornering mechanism 2, thereby adjusting the flow meter body 8 to a suitable position; a winding mechanism 9 is provided on the horizontal plate 5, and a pull rope 10 is wound on the winding mechanism 9. The pull rope 10 is a nylon rope. The free end of the 0 is fixedly connected to the float 7. The winding mechanism 9 includes two first vertical plates 91 fixedly connected to the horizontal plate 5. A winding roller 92 is rotatably connected between the two first vertical plates 91. The pull rope 10 is wound onto the winding roller 92. A first servo motor 93 is installed on the horizontal plate 5. The output end of the first servo motor 93 is fixedly connected to the rotating shaft of the winding roller 92. The output of the first servo motor 93 causes the winding roller 92 to rotate. Combined with gravity, the float 7 descends to the water surface and floats on it (keeping the pull rope 10 in a non-straight state, leaving room for the water surface to descend). The flow meter body 8 monitors the water flow. When retracting and disassembling, the first servo motor 93 is controlled to wind the pull rope 10, thereby raising the float 7 and the flow meter body 8, shortening the telescopic rod 6, reducing the difficulty of disassembly and improving the disassembly efficiency.

[0025] like Figure 1-3 As shown, the pull rope 10 passes through the horizontal plate 5. The winding mechanism 9 also includes two second vertical plates 94 fixedly connected to the horizontal plate 5. A pulley 95 is rotatably connected between the two second vertical plates 94. The pull rope 10 is wound around the pulley 95. The pulley 95 can change the direction of the pull rope 10 and make the winding and unwinding of the pull rope 10 smoother.

[0026] like Figure 1-3 As shown, a second servo motor 15 is installed on the horizontal plate 5. A gear 16 is fixedly connected to the output end of the second servo motor 15. A groove is opened on the inner side of the mounting bracket 3, and a toothed plate 17 is fixedly connected in the groove. The gear 16 meshes with the toothed plate 17. The output of the second servo motor 15 causes the gear 16 to rotate, which, in conjunction with the toothed plate 17, causes the horizontal plate 5 to move on the mounting bracket 3, thereby adjusting the extension position of the flow meter body 8. In conjunction with the corner mechanism 2, the adjustment accuracy of the flow meter body 8 is improved.

[0027] like Figure 1-3 As shown, the clamping mechanism 1 includes a fixed frame 11, which is U-shaped. A movable clamping plate 12 is slidably attached inside the fixed frame 11. A screw 13 is threaded through and connected to the fixed frame 11. One end of the screw 13 is rotatably connected to the movable clamping plate 12 through a bearing seat. By rotating the screw 13, the movable clamping plate 12 is moved closer to the inner wall of the fixed frame 11, which can clamp and fix it at a suitable position at the seepage point of the earth-rock dam.

[0028] like Figure 1-3 As shown, rubber strips 14 are fixedly connected to both the movable clamping plate 12 and the fixed frame 11. The rubber strips 14 help to increase the friction between the clamping mechanism 1 and the clamping position, thereby improving the installation stability of the flow meter.

[0029] like Figure 1-3 As shown, the corner mechanism 2 includes a turntable 21 rotatably connected to the fixed frame 11, a mounting frame 3 fixedly connected to the turntable 21, a plurality of positioning holes 22 are provided on the turntable 21 along the circumference, a positioning rod 23 is inserted into the fixed frame 11, and the positioning rod 23 is also inserted into the positioning hole 22 at a suitable position. A handle 24 is fixedly connected to the side wall of the turntable 21. By pulling out the positioning rod 23 and holding the handle 24 to rotate the turntable 21, the position of the flow meter body 8 can be adjusted.

[0030] The first servo motor 93 and the second servo motor 15 are both electrically connected to an external power supply and to a control unit (not shown in the figure).

[0031] The working principle of a reservoir dam seepage flow meter in this embodiment is as follows: During installation, the flow meter is installed in a suitable position through the clamping mechanism 1. The output of the second servo motor 15 causes the horizontal plate 5 to move on the mounting frame 3, thereby adjusting the extension position of the flow meter body 8. In conjunction with the corner mechanism 2, the adjustment accuracy of the flow meter body 8 is improved. The output of the first servo motor 93 releases the pull rope 10, so that the float 7 and the flow meter body 8 contact the water surface for monitoring. When retracting, the first servo motor 93 is controlled to rewind the pull rope 10, thereby raising the float 7 and the flow meter body 8, shortening the telescopic rod 6, reducing the difficulty of disassembly, and improving the disassembly efficiency.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flow meter for measuring seepage in a reservoir dam, characterized in that: It includes a clamping mechanism (1), a corner mechanism (2) is connected to the clamping mechanism (1), a mounting bracket (3) is connected to the corner mechanism (2), two sets of parts (4) slide on the mounting bracket (3), a cross plate (5) is fixedly connected between the sets of parts (4), a telescopic rod (6) is fixedly connected to the cross plate (5), a floating plate (7) is fixedly connected to the free end of the telescopic rod (6), and a flowmeter body (8) is installed on the floating plate (7); a winding mechanism (9) is arranged on the cross plate (5), a pulling rope (10) is wound on the winding mechanism (9), and the free end of the pulling rope (10) is fixedly connected to the floating plate (7).

2. The reservoir dam seepage flow meter according to claim 1, characterized in that: The winding mechanism (9) includes two first vertical plates (91) fixedly connected to the cross plate (5), a winding roller (92) is rotatably connected between the two first vertical plates (91), a first servo motor (93) is installed on the cross plate (5), and the output end of the first servo motor (93) is fixedly connected to the rotating shaft of the winding roller (92).

3. The reservoir dam seepage flow meter according to claim 2, characterized in that: The pulling rope (10) is a nylon rope.

4. A reservoir dam seepage flow meter according to claim 2, characterized in that: The winding mechanism (9) further includes two second vertical plates (94) fixedly connected to the cross plate (5), a pulley (95) is rotatably connected between the two second vertical plates (94), and the pulling rope (10) is wound around the pulley (95).

5. A reservoir dam seepage flow meter according to claim 1, characterized in that: A second servo motor (15) is installed on the cross plate (5), a gear (16) is fixedly connected to the output end of the second servo motor (15), a tooth plate (17) is fixedly connected to the inner side of the mounting bracket (3), and the gear (16) is meshed with the tooth plate (17).

6. The reservoir dam seepage flow meter according to claim 1, characterized in that: The clamping mechanism (1) includes a fixed frame (11), a moving clamping plate (12) is slidably fitted inside the fixed frame (11), a screw rod (13) is screwed on the fixed frame (11), and one end of the screw rod (13) is rotatably connected to the moving clamping plate (12).

7. A reservoir dam seepage flow meter according to claim 6, characterized in that: The fixed frame (11) is in a U-shaped.

8. A reservoir dam seepage flow meter according to claim 6, characterized in that: Rubber strips (14) are fixedly connected to both the moving clamping plate (12) and the fixed frame (11).

9. A reservoir dam seepage flow meter according to claim 6, characterized in that: The corner mechanism (2) includes a turntable (21) rotatably connected to the fixed frame (11), and the mounting bracket (3) is fixedly connected to the turntable (21).

10. A reservoir dam seepage flow meter according to claim 9, characterized in that: A plurality of positioning holes (22) are circumferentially formed on the turntable (21), a positioning rod (23) is inserted into the fixed frame (11), and the positioning rod (23) is also inserted into the positioning hole (for the appropriate position) (22).

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