Flow velocity measuring device for hydraulic engineering

Abstract

The utility model discloses a flow velocity measuring device for hydraulic engineering. The flow velocity measuring device comprises a base arranged on the shore; the lifting rod is arranged on the base; the horizontal rod is slidably connected to the lifting rod; the extension assembly stretches out and draws back to the horizontal rod; the detection rod is arranged at the front end of the extension assembly; the floating plate is slidably connected to the detection rod; and the flow velocity meter is rotationally connected to the floating plate. When the flow velocity is measured, the bottom of the rod body extends below the water surface, or the limiting plate is inserted into the bottom of a river channel without water storage, so that the floating plate has an up-and-down moving space, and when water storage or drainage operation is performed on the river channel during construction, the height of the water surface can be changed in a lifting manner; and the floating plate always floats above the water surface along with the lifting of the water surface, so that the flow velocity meter can work in water all the time, and the situation that the water surface is lower than the flow velocity meter due to large water level height change in water conservancy construction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flow velocity measurement, and more specifically, particularly to a flow velocity measurement device used in water conservancy projects. Background Art

[0002] During the construction of water conservancy projects, flow velocity measuring devices are needed to measure and monitor the flow velocity during the process of storing or releasing water in the river.

[0003] The patent with publication number CN220289638U discloses a flow velocity measuring device for a water conservancy project, including: a mounting base, a lifting and adjusting component arranged on the mounting base, a mounting platform arranged on the lifting and adjusting component, a horizontal connecting rod movably connected to the mounting platform, and a water flow velocity measuring instrument arranged at one end of the horizontal connecting rod; a storage groove for placing the water flow velocity measuring instrument is provided on the mounting base, a layer of shock-absorbing pad is provided in the storage groove, and a protective baffle is provided on the storage groove; a horizontal through hole is provided on the mounting platform, and the horizontal connecting rod passes through the through hole; a rotating shaft is provided at one end of the horizontal connecting rod away from the water flow velocity measuring instrument.

[0004] However, the flow meter of this patent can only move forward and backward. If the water level changes due to water release and water storage during water conservancy construction, the flow meter will be separated from the water surface, and manual adjustment is required at this time. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a flow velocity measuring device for water conservancy projects, which can enable the flow velocity measuring instrument to move with the rise and fall of the water surface and can measure the flow velocity when storing and releasing water.

[0006] A flow velocity measuring device for water conservancy projects, comprising: a base arranged on a bank; a lifting rod arranged on the base; a horizontal rod slidably connected to the lifting rod; an extension component telescopically connected to the horizontal rod; a detection rod arranged at the front end of the extension component; a floating plate slidably connected to the detection rod; and a flow meter rotatably connected to the floating plate.

[0007] Furthermore, the base includes a base and a side plate, the side plate is fixedly connected to the side of the base, a connecting hole is opened at the bottom of the base, and a hook is provided at the rear end of the side plate.

[0008] Furthermore, the lifting rod is vertically fixed to the base, two sides of the lifting rod are concave to form a slideway, and a rotating pulley is provided on the top of the lifting rod.

[0009] Furthermore, the horizontal rod is a shell with openings on three sides, a slider is provided at the rear end of the horizontal rod, the slider is slidably connected to the slideway, and a connecting ring is provided at the top of the horizontal rod.

[0010] Furthermore, a winding shaft is provided on the base, the winding shaft is driven by a first motor, a pull wire is wound around the winding shaft, and the pull wire is connected to the connecting ring through the rotating pulley.

[0011] Furthermore, the extension assembly includes a rack, a gear shaft and a second motor, the rack is slidably connected to the horizontal rod, the gear shaft is rotatably connected to the inner wall of the horizontal rod, the gear shaft is meshed with the rack, and the second motor drives the gear shaft to rotate.

[0012] Furthermore, a slide groove is provided on the inner wall of the horizontal rod, and a bump is protruded from the side wall of the rack, and the bump is slidably connected to the slide groove.

[0013] Furthermore, the detection rod includes a rod body and a data table, the data table is arranged on the top of the rod body, and the data table is fixedly connected to the front end of the rack.

[0014] Furthermore, two limit bars are provided on the side wall of the rod body, a limit plate is provided on the bottom of the rod body, and the floating plate is slidably connected to the limit bars.

[0015] Furthermore, a rotating shaft is provided on the top of the flow meter, and the rotating shaft is rotatably connected to the bottom of the floating board.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] ① When measuring the flow rate, extend the bottom of the rod below the water surface, or insert the limit plate into the bottom of the river that has not yet been filled with water, so that the floating plate has space to move up and down. When the river is filled with water or released during construction, the height of the water surface will rise and fall. The floating plate will always float above the water surface with the rise and fall of the water surface, further allowing the current meter to work in the water all the time, reducing the situation where the water surface is lower than the current meter due to large changes in the water level height during hydraulic construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 The present invention is a schematic diagram of the overall structure of a flow velocity measuring device used in water conservancy projects.

[0020] In the figure: 1. base; 11. base; 111. connecting hole; 112. winding shaft; 113. first motor; 12. side panel; 121. hook; 2. lifting rod; 21. slideway; 22. rotating pulley; 3. horizontal rod; 31. slider; 32. connecting ring; 4. extension component; 41. rack; 42. gear shaft; 43. second motor; 5. detection rod; 51. rod body; 511. limit strip; 512. limit plate; 52. data table; 6. floating plate; 61. rotating shaft; 7. flow meter; 8. pull line. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 As shown, a flow velocity measuring device for water conservancy projects includes: a base 1 arranged on the shore; a lifting rod 2 arranged on the base 1; a horizontal rod 3 slidably connected to the lifting rod 2; an extension component 4 telescopically connected to the horizontal rod 3; a detection rod 5 arranged at the front end of the extension component 4; a floating plate 6 slidably connected to the detection rod 5; and a flow meter 7 rotatably connected to the floating plate 6.

[0023] The base 1 includes a base 11 and a side plate 12. The side plate 12 is fixed to the side of the base 11. A connection hole 111 is provided at the bottom of the base 11, and a hook 121 is provided at the rear end of the side plate 12. The base 1 is installed on the edge of the river channel of the water conservancy project. Before the river bank construction is completed, a concrete column pier is cast on the bank, and positioning bolts are embedded in the concrete column pier. The connection hole 111 is inserted into the positioning bolt to fix the position of the base 1; after the river bank slope construction is completed, a steel ring is embedded in the river bank slope, and the hook 121 is hooked to the steel ring, thereby reducing the distance between the device and the river channel and saving manufacturing materials.

[0024] The lifting rod 2 is vertically fixed to the base 11 and placed vertically. The lifting rod 2 provides a track and route for the lifting and lowering of the detection rod 5. The two sides of the lifting rod 2 are concave to form a slideway 21, and the slideway 21 also runs in the vertical direction. A rotating pulley 22 is provided on the top of the lifting rod 2.

[0025] The horizontal rod 3 is a shell with three sides open. The rear end of the horizontal rod 3 is closed. A slider 31 is provided at the rear end of the horizontal rod 3. The slider 31 is slidably connected to the slide 21. The slider 31 moves up and down along the slide 21. A connecting ring 32 is provided on the top of the horizontal rod 3. The two ends of the connecting ring 32 are connected to the two side walls of the horizontal rod 3, thereby enhancing the bearing capacity of the horizontal rod 3.

[0026] A winding shaft 112 is provided on the base 11, and the winding shaft 112 is driven by a first motor 113. A pull wire 8 is wound on the winding shaft 112. After the first motor 113 rotates, it drives the pull wire 8 to reel in and release the wire along the winding shaft 112. The pull wire 8 is first lifted upward and overlapped on the rotating pulley 22, and then the pull wire 8 is connected to the connecting ring 32. The pull wire 8 pulls the horizontal rod 3 to lift and lower. The rotating pulley 22 makes the pull wire 8 rotate more smoothly, reducing the friction resistance between the lifting rod 2, so as to facilitate the lifting and lowering of the horizontal rod 3.

[0027] The extension component 4 includes a rack 41, a gear shaft 42 and a second motor 43. The rack 41 is slidably connected to the horizontal rod 3, the gear shaft 42 is rotatably connected to the inner wall of the horizontal rod 3, the gear shaft 42 is engaged with the rack 41, and the second motor 43 drives the gear shaft 42 to rotate. When the gear shaft 42 rotates, the gear shaft 42 drives the rack 41 to extend and retract with the horizontal rod 3 as a reference. When the river surface is wider, the rack 41 is extended outward to measure the flow velocity in the middle of the river channel. When the river surface is narrow, the rack 41 is retracted to adapt to the width of the river channel.

[0028] A slide groove is provided on the inner wall of the horizontal rod 3, and a bump is protruded from the lower part of the side wall of the rack 41. The bump is slidably connected to the slide groove, and the slide groove clamps the bump, so that the rack 41 can only move forward and backward.

[0029] The detection rod 5 includes a rod body 51 and a data platform 52. The data platform 52 is arranged on the top of the rod body 51. The data platform 52 is fixedly connected to the front end of the rack 41. The data platform 52 does not contact the water surface. The data platform 52 records and saves the monitored water flow velocity data and transmits it to the cloud. The monitoring personnel can remotely view the water flow velocity data.

[0030] Two limit bars 511 are provided on the side wall of the rod body 51, and a limit plate 512 is provided at the bottom of the rod body 51. The floating plate 6 is slidably connected to the limit bars 511. The limit bars 511 allow the floating plate 6 to move up and down only along the direction of the rod body 51, and the floating plate 6 will not rotate under the impact of the water flow. The limit plate 512 prevents the floating plate 6 from falling off from the bottom of the rod body 51. When measuring the flow rate, the bottom of the rod body 51 is extended below the water surface, or the limit plate 512 is inserted into the bottom of the river channel that has not yet been filled with water, so that there is space for the floating plate 6 to move up and down. When the river channel is filled with water or released during construction, the height of the water surface will rise and fall. The floating plate 6 always floats above the water surface with the rise and fall of the water surface, further allowing the current meter 7 to be in the water for work, reducing the situation where the water surface is lower than the current meter 7 due to the large change in the water level height during the water conservancy construction. When the water level rises or falls beyond the height of the rod body 51, the height adjustment of the horizontal bar 3 is manually adjusted to a larger range.

[0031] A rotating shaft 61 is provided on the top of the current meter 7, and the rotating shaft 61 is rotatably connected to the bottom of the floating plate 6. The current meter 7 rotates relative to the rotating shaft 61, so that the current meter 7 can be perpendicular to the water flow direction, which is convenient for measuring a more accurate flow rate.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flow velocity measuring device for water conservancy projects, characterized in that: include: a base (1) located on the shore; A lifting rod (2) disposed on the base (1); A horizontal rod (3) slidably connected to the lifting rod (2); An extension assembly (4) telescopically attached to the horizontal rod (3); A detection rod (5) disposed at the front end of the extension component (4); a floating plate (6) slidably connected to the detection rod (5); and A current meter (7) connected to the floating plate (6) is rotated.

2. A flow velocity measuring device for water conservancy projects according to claim 1, characterized in that: The base (1) comprises a base (11) and a side plate (12); the side plate (12) is fixedly connected to the side of the base (11); a connecting hole (111) is provided at the bottom of the base (11); and a hook (121) is provided at the rear end of the side plate (12).

3. A flow velocity measuring device for water conservancy projects according to claim 2, characterized in that: The lifting rod (2) is vertically fixed to the base (11), the two sides of the lifting rod (2) are concave to form a slideway (21), and a rotating pulley (22) is provided on the top of the lifting rod (2).

4. A flow velocity measuring device for water conservancy projects according to claim 3, characterized in that: The horizontal rod (3) is a shell with three openings. A slider (31) is provided at the rear end of the horizontal rod (3). The slider (31) is slidably connected to the slideway (21). A connecting ring (32) is provided at the top of the horizontal rod (3).

5. A flow velocity measuring device for water conservancy projects according to claim 4, characterized in that: The base (11) is provided with a winding shaft (112), the winding shaft (112) is driven by a first motor (113), a pull wire (8) is wound around the winding shaft (112), and the pull wire (8) is connected to the connecting ring (32) via the rotating pulley (22).

6. A flow velocity measuring device for water conservancy projects according to claim 5, characterized in that: The extension assembly (4) comprises a rack (41), a gear shaft (42) and a second motor (43); the rack (41) is slidably connected to the horizontal rod (3); the gear shaft (42) is rotatably connected to the inner wall of the horizontal rod (3); the gear shaft (42) is meshed with the rack (41); and the second motor (43) drives the gear shaft (42) to rotate.

7. A flow velocity measuring device for water conservancy projects according to claim 6, characterized in that: The inner wall of the horizontal rod (3) is provided with a sliding groove, and the side wall of the rack (41) is provided with a protrusion, and the protrusion is slidably connected to the sliding groove.

8. A flow velocity measuring device for water conservancy projects according to claim 7, characterized in that: The detection rod (5) comprises a rod body (51) and a data platform (52); the data platform (52) is arranged on the top of the rod body (51); and the data platform (52) is fixedly connected to the front end of the rack (41).

9. A flow velocity measuring device for water conservancy projects according to claim 8, characterized in that: The side wall of the rod body (51) is provided with two limit strips (511), the bottom of the rod body (51) is provided with a limit plate (512), and the floating plate (6) is slidably connected to the limit strips (511).

10. A flow velocity measuring device for water conservancy projects according to claim 9, characterized in that: A rotating shaft (61) is provided on the top of the current meter (7), and the rotating shaft (61) is rotatably connected to the bottom of the floating plate (6).

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