Multifunctional measuring device suitable for curve water tank

Abstract

The utility model discloses a multifunctional measuring device suitable for a curve water tank. The multifunctional measuring device comprises a first limiting stopper and a second limiting stopper, the first limiter is arranged on the first horizontal track on the left side of the curve water tank through the limiting wheel set, and the second limiter is arranged on the second horizontal track on the right side of the curve water tank through the limiting wheel set; two transverse through grooves are formed in the middle of the interior of the limiting stopper, first bearings are installed in the through grooves to be connected with a rotary buckle set, and a through hole is formed in the middle of the rotary buckle set. The transverse long rod penetrates through the through hole; one end of the transverse long rod is fixedly connected to the second limiter, and the other end penetrates through the first limiter; a movable measuring platform is connected between the two transverse long rods in a sliding mode, two fixing supports are arranged on the movable measuring platform, a water level probe and a flow velocity meter are fixed to the two fixing supports respectively, the testing device can measure the flow velocity, the water level and the like of curve water flow under the conditions of different curvatures, different angles or different widths, and therefore the testing efficiency is improved while the testing cost is reduced. And the test accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory hydraulic / river engineering model tests, and particularly relates to a multifunctional measuring device applicable to a bend flume. Background Technique

[0002] Natural rivers, especially mountain rivers, almost all present a curved shape, and the bend can be regarded as the most basic unit of the river. The research on the movement law of bend flow occupies an important position in many fields of hydraulic engineering. For example, it has been widely applied in aspects such as river regulation, port construction, water diversion and sediment discharge, and improvement of river navigation. Ideally, a full three-dimensional simulation of the natural bend river is carried out and quantitative research is carried out with measured data. However, due to the difficulties, high costs, and poor accuracy of obtaining measured data, usually people's research on natural bend rivers starts from laboratory flumes. The existing bend flow experimental devices are applicable to the tests of constant curvature and equal-width bend flows such as U-shaped bends and annular bends. However, natural bend rivers generally have variable curvature bends and the bend width is variable. It is difficult for the existing bend flow experimental devices to restore the flow regime of natural bend rivers. Therefore, there is an urgent need for a multifunctional measuring working platform device for bend flume tests. Content of the Utility Model

[0003] The utility model provides a multifunctional measuring device applicable to a bend flume, aiming to measure the flow velocity, water level, etc. of bend flow under different curvatures, different angles or different widths, reducing the test cost while improving the accuracy of the experimental device.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A multifunctional measuring device applicable to a bend flume includes a first stopper and a second stopper; the first stopper is placed on a first horizontal track on the left side of the bend flume through a limit wheel set, and the second stopper is placed on a second horizontal track on the right side of the bend flume through a limit wheel set; the first stopper and the second stopper have the same structure. There are two transverse through grooves in the middle position inside the stopper, and a first bearing connection rotating buckle group is installed in the through grooves. A through hole is opened in the middle of the rotating buckle group; the through hole is for a transverse long rod to pass through to limit the movement of the transverse long rod; one end of the transverse long rod is fixedly connected to the second stopper, and the other end passes through the first stopper. The first stopper can move horizontally on the transverse long rod; a moving measuring platform is slidably connected between the two transverse long rods. The moving measuring platform is provided with a first fixed support and a second fixed support. The first fixed support is used to fix the water level probe, and the second fixed support is used to fix the flow velocity meter;

[0006] Both the upper parts of the first fixed support and the second fixed support are provided with knobs. The upper parts of the water level probe and the flow velocity meter are both provided with gear grooves. The knobs are meshed with the gear grooves. By turning the knobs, the heights of the water level probe and the flow velocity meter can be finely adjusted to measure the water flow levels and speeds at different depths.

[0007] The rotary buckle group is in a cylindrical structure and can rotate 0 - 90° to adapt to the change of the bending degree of the curved flume.

[0008] The described limiting wheel group includes a first limiting wheel and a second limiting wheel. The first limiting wheel and the second limiting wheel are fixedly connected through a connecting rod. The upper part of the connecting rod is connected to a limiter through a second bearing.

[0009] Both the first limiter and the second limiter at least include a group of limiting wheel groups to achieve contact with the horizontal track.

[0010] The beneficial effects of the present utility model are as follows:

[0011] First: The present utility model provides a multifunctional measuring device applicable to a curved flume. By rotating the buckle to fix the two transverse tracks, the two transverse tracks move on the two horizontal tracks to achieve movement along different curvatures and different radii of curvature of the curved flume model.

[0012] Second: The present utility model provides a multifunctional measuring device applicable to a curved flume. One side of the two transverse tracks is fixed and the other side is telescopic, which realizes adapting to the model tests of curved flumes with different widths. A movable platform is installed between the two transverse tracks, which realizes measuring the water flow levels and speeds at different positions, greatly facilitating the measurement and improving the experimental speed.

[0013] Third: The present utility model provides a multifunctional measuring device applicable to a curved flume, which is simple to manufacture, economical and practical, easy to operate, can effectively test the movement law of the curved water flow, improves the test accuracy, and reduces the test cost. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is the working schematic diagram of the present utility model;

[0016] Figure 3 is the top - view structural schematic diagram of the present utility model in a curve;

[0017] Figure 4 is the side - sectional view structural schematic diagram of the limiter of the present utility model;

[0018] Figure 5 is the front - sectional view structural schematic diagram of the limiter of the present utility model;

[0019] Figure 6 This is a schematic diagram of the front view structure of the mobile measurement platform of the present utility model;

[0020] Figure 7 is Figure 6 an enlarged view of the local structure A in

[0021] Figure 8 This is a schematic diagram of the side view structure of the mobile measurement platform of the present utility model;

[0022] Figure 9 is Figure 8 an enlarged view of the local structure B in

[0023] 1. Bend flume, 2. First horizontal track, 3. Second horizontal track, 4. First stopper, 5. Second stopper, 6. First limiting wheel, 7. Second limiting wheel, 8. Rotating buckle group, 9. Through groove, 10. Connecting rod, 11. First bearing, 12. Second bearing, 13. Transverse long rod, 14. Mobile measurement platform, 15. First fixed support, 16. Second fixed support, 17. Water level probe, 18. Current meter, 19. Knob, 20. Gear groove, 801. Through hole;

[0024] D1 is the transverse width of the bend flume at position a, D2 is the transverse width of the bend flume at position b, D3 is the transverse width of the bend flume at position c, D4 is the transverse width of the bend flume at position d, L1 is the length of the transverse long rod outside the bend flume at position a, L2 is the length of the transverse long rod outside the bend flume at position b, L3 is the length of the transverse long rod outside the bend flume at position c, and L4 is the length of the transverse long rod outside the bend flume at position d. Specific implementation mode

[0025] The following will describe the implementation scheme of the present utility model in detail in combination with the embodiments. The following embodiments are only used to illustrate the present utility model and should not be regarded as limiting the scope of the present utility model.

[0026] Embodiment 1

[0027] As shown in the figure, a multifunctional measuring device applicable to a curved flume includes a first limiter 4 and a second limiter 5; the first limiter 4 is placed on a first horizontal track 2 on the left side of the curved flume 1 through a limiting wheel set, and the second limiter 5 is placed on a second horizontal track 3 on the right side of the curved flume 1 through a limiting wheel set; the first limiter 4 and the second limiter 5 have the same structure. There are two transverse through grooves 9 in the middle of the limiter. A first bearing 11 is installed in the through groove 9 to connect a rotating buckle group 8. A through hole 801 is opened in the middle of the rotating buckle group 8; the through hole 801 is for a transverse long rod 13 to pass through to limit the movement of the transverse long rod 13; one end of the transverse long rod 13 is fixedly connected to the second limiter 5, and the other end passes through the first limiter 4. The first limiter 4 can move horizontally on the transverse long rod 13; a moving measuring platform 14 is slidably connected between the two transverse long rods 13. The moving measuring platform 14 is provided with a first fixed support 15 and a second fixed support 16. The first fixed support 15 is used to fix a water level probe 17, and the second fixed support 16 is used to fix a current meter 18;

[0028] Both the upper parts of the first fixed support 15 and the second fixed support 16 are provided with knobs 19. Both the upper parts of the water level probe 17 and the current meter 18 are provided with gear grooves 20. The knobs 19 are engaged with the gear grooves 20. By turning the knobs 19, the heights of the water level probe 17 and the current meter 18 can be finely adjusted to measure the water levels and velocities of water flows at different depths.

[0029] The rotating buckle group 8 has a cylindrical structure and can rotate by 0 - 90° to adapt to the change in the curvature of the curved flume 1.

[0030] The limiting wheel set includes a first limiting wheel 6 and a second limiting wheel 7. The first limiting wheel 6 and the second limiting wheel 7 are fixedly connected by a connecting rod 10. The upper part of the connecting rod 10 is connected to the limiter through a second bearing 12.

[0031] Both the first limiter 4 and the second limiter 5 each include at least one set of limiting wheel sets to achieve contact with the horizontal track.

[0032] Embodiment 2

[0033] The working principle is described using a laboratory flume model:

[0034] As Figure 2 shown, the limiters 4 and 5 are respectively placed on the first horizontal track 2 and the second horizontal track 3 on both sides of the curved flume 1. The end of the transverse long rod 13 is fixed to the limiter 5, and the other end passes through the limiter 4; by adjusting the positions or heights of the limiters, the water level probe 17, and the current meter 18, the water levels and flow velocities of flumes with different widths can be measured.

[0035] When the device passes through position a, the transverse width of the curved flume is D1 at this time:

[0036] D1 = D - L1,

[0037] D is the length of the horizontal long rod, and L1 is the length of the horizontal long rod outside the curved flume at position a;

[0038] When the device passes through position b, the horizontal width of the curved flume at this time is D2:

[0039] D2 = D - L2,

[0040] D is the length of the horizontal long rod, and L2 is the length of the horizontal long rod outside the curved flume at position b;

[0041] When the device passes through position c, the horizontal width of the curved flume at this time is D3:

[0042] D3 = D - L3,

[0043] D is the length of the horizontal long rod, and L3 is the length of the horizontal long rod outside the curved flume at position c;

[0044] When the device passes through position d, the horizontal width of the curved flume at this time is D4:

[0045] D4 = D - L4,

[0046] D is the length of the horizontal long rod, and L4 is the length of the horizontal long rod outside the curved flume at position d;

[0047] This device can also measure the water level and flow velocity of water with different curvatures or degrees of bend. Specifically, the rotating buckle group 8 provided inside the limiter changes the angle of the rotating buckle group 8 as the angle of the horizontal track changes, so that the device measures the water level and flow velocity under different curvatures or degrees of bend.

[0048] The knob 19 meshes with the gear slot 20, and by turning the knob 19, the heights of the water level probe 17 and the flow velocity meter 18 are finely adjusted to measure the water level and velocity of water at different depths.

Claims

1. A multifunctional measuring device suitable for curved flumes, characterized in that: The invention comprises a first stopper (4) and a second stopper (5); the first stopper (4) is placed on a first horizontal track (2) on the left side of the curved water tank (1) through a stopper wheel group, and the second stopper (5) is placed on a second horizontal track (3) on the right side of the curved water tank (1) through a stopper wheel group; the first stopper (4) and the second stopper (5) have the same structure, two transverse through grooves (9) are provided at the middle position inside the stopper, a first bearing (11) is installed in the through groove (9) to connect to a rotating buckle group (8), and a through hole (801) is provided in the middle of the rotating buckle group (8); the through hole (801) is for a transverse long rod (13) to pass through; one end of the transverse long rod (13) is fixedly connected to the second stopper (5), and the other end passes through the first stopper (4), and the first stopper (4) can move transversely on the transverse long rod (13); a movable measuring platform (14) is slidably connected between the two transverse long rods (13).

2. A multifunctional measuring device suitable for curved flumes according to claim 1, characterized in that: The mobile measuring platform (14) is provided with a first fixed support (15) and a second fixed support (16); the first fixed support (15) is used to fix a water level probe (17), and the second fixed support (16) is used to fix a flow meter (18).

3. A multifunctional measuring device suitable for curved flumes according to claim 2, characterized in that: The first fixed support (15) and the second fixed support (16) are each provided with a knob (19) on their upper parts, and the water level probe (17) and the flow meter (18) are each provided with a gear groove (20) on their upper parts. The knob (19) meshes with the gear groove (20), and the height of the water level probe (17) and the flow meter (18) is finely adjusted by twisting the knob (19) to measure the water level and velocity of water flow at different depths.

4. A multifunctional measuring device suitable for curved flumes according to claim 1, characterized in that: The rotating buckle assembly (8) is in a cylindrical structure and can achieve 0-90° rotation to adapt to changes in the curvature of the curved water tank (1).

5. The multifunctional measuring device for curved flumes according to claim 1, characterized in that: The limiting wheel assembly comprises a first limiting wheel (6) and a second limiting wheel (7); the first limiting wheel (6) and the second limiting wheel (7) are fixedly connected via a connecting rod (10); and a limiter is connected above the connecting rod (10) via a second bearing (12).

6. A multifunctional measuring device suitable for curved flumes according to claim 1, characterized in that: The first limiter (4) and the second limiter (5) each comprise at least one set of limit wheel assemblies.

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