Floating type weir plate flow instrument

Abstract

The utility model discloses a floating type weir plate flow meter which comprises an installation frame, a water level gauge, a floating body and a triangular weir plate vertically arranged in the left-right direction, a triangular weir crest is arranged in the middle of the upper end of the triangular weir plate, the installation frame is installed at the upper end of the triangular weir plate, and the water level gauge is vertically arranged and installed on the installation frame in a sliding mode. The water level gauge is aligned with the base angle of the weir crest, the floating body is installed at the lower end of the water level gauge and drives the water level gauge to slide up and down relative to the installation frame along with the change of the water level, and therefore the weir height value under the corresponding liquid level can be conveniently known through the water level gauge; therefore, on-site implementation flow can be conveniently obtained according to a triangular weir water head height and flow checking table.

Description

Technical Field

[0001] The utility model belongs to the technical field of weir plate flow measurement, in particular to a floating weir plate flow meter. Background Art

[0002] With the increasing number of hydrological tests in hydrogeological and geothermal geological survey projects, weir plate flowmeters are widely used as a flow measurement device in hydrological tests (such as Figure 1 As shown, Figure 1 Where L represents the liquid level, and h represents the weir height at the corresponding liquid level). The current traditional weir plate water level flow measurement device mainly uses a steel tape measure to manually measure the weir height on both sides of the weir. This requires a high sense of responsibility from the measurement personnel. On the one hand, the measurement personnel are required to go to the site for measurement regularly or irregularly. On the other hand, the measurement personnel are required to perform standard operations during measurement in order to achieve accurate measurement. The overall device lacks automation and intelligence. Currently, only open channels in important areas use relatively expensive water measuring weir meters and magnetostrictive water measuring weir meters. This type of instrument is relatively expensive and is mostly installed on the side walls of the channel, so its application is limited. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a floating weir flowmeter which can directly read the real-time weir height of the triangular weir with the help of a water level gauge on site.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a floating weir flowmeter, comprising a triangular weir plate arranged vertically along the left-right direction, the middle part of the upper end of the triangular weir plate having a triangular weir mouth, and also comprising a mounting frame, a water level scale and a floating body, the mounting frame being installed at the upper end of the triangular weir plate, the water level scale being vertically arranged and slidably installed on the mounting frame, and the water level scale being aligned with the bottom angle of the weir mouth, the floating body being installed at the lower end of the water level scale, and the floating body driving the water level scale to slide up and down relative to the mounting frame as the water level changes.

[0005] The beneficial effect of the above technical solution is that by arranging a floating body at the lower end of the water level gauge, the floating body will drive the water level gauge to move up and down as the water level intercepted by the triangular weir plate changes, and when the water level is flush with the bottom of the weir, the lower end of the water level gauge is also flush with the bottom of the weir. At this time, the reading at the sliding connection between the water level gauge and the mounting frame can be recorded as A, and when the water level rises and is higher than the bottom of the weir, when a reading is required, the real-time reading of the water level gauge is B, and the corresponding weir height at this water level is the absolute value of the difference between A and B.

[0006] In the above technical solution, the mounting bracket includes a mounting rod and a mounting base. Mounting bases are provided at both ends of the mounting rod. The mounting rod is placed above the triangular weir plate in the left-right direction, and the mounting bases at its two ends are respectively connected to the upper ends of the corresponding ends of the triangular weir plate. The water level scale is slidably connected to the middle of the mounting rod.

[0007] The beneficial effect of the above technical solution is that in this way, both ends of the entire mounting rod can be stably mounted on the triangular weir plate through the mounting bases.

[0008] In the above technical solution, the mounting base includes an upper connecting member and a lower connecting member. The upper connecting member is connected to the mounting rod, and the lower connecting member is connected to the triangular weir plate.

[0009] The beneficial effect of the above technical solution is that in this way, the upper connecting member of the mounting base is connected to the mounting rod, and the lower connecting member of the mounting base is connected to the triangular weir plate, that is, the mounting rod is connected to the triangular weir plate through the mounting base.

[0010] In the above technical solution, the upper connecting member includes a connecting ring. The mounting rod passes through the connecting ring and is connected to the upper connecting member.

[0011] The beneficial effect of the above technical solution is that in this way, the mounting rod can pass through the connecting ring to be lifted.

[0012] In the above technical solution, the lower connecting member includes an n-shaped clip body. The left and right sides of the clip body are through, and the clip body is used for clamping the upper end of the triangular weir plate.

[0013] The beneficial effect of the above technical solution is that in this way, the clip body can straddle the upper end of the triangular weir plate.

[0014] In the above technical solution, the floating body is straight and horizontally arranged in the left-right direction. The middle part corresponding to the length direction of the floating body is vertically connected to the lower end of the water level scale.

[0015] The beneficial effect of the above technical solution is that in this way, the stability of the floating body when lifting the water level scale is good, and it is not easy to slide up and down to affect the accuracy of the water level scale measurement.

[0016] In the above technical solution, level gauges are provided at both ends of the floating body.

[0017] The beneficial effect of the above technical solution is that in this way, the verticality of the installation of the water level scale can be calibrated by the level gauges during assembly.

[0018] In the above technical solution, the zero scale line of the water level scale is located at the upper end.

[0019] The beneficial effects of the above technical solution are as follows: In this way, it is more convenient to read the water level scale, and since the value of B is greater than the value of A, the difference obtained by directly subtracting the value of A from the value of B is the actual reading of the weir height.

[0020] The above technical solution further includes a digital display type temperature measuring device. The digital display part of the temperature measuring device is arranged on the mounting bracket, and the sensing part of the temperature measuring device is immersed underwater.

[0021] The beneficial effects of the above technical solution are as follows: In this way, the temperature of the water body can be conveniently measured by the temperature measuring device.

[0022] The above technical solution further includes a camera arranged on the mounting bracket for photographing the temperature measuring device and the water level scale.

[0023] The beneficial effects of the above technical solution are as follows: In this way, the camera can take real-time photos of the real-time readings at the sliding connection of the water level scale and the mounting bracket and the real-time readings of the temperature measuring device and transmit them to the terminal device remotely. This enables the measurement personnel to know the real-time weir height parameters of the triangular weir plate in real time through the terminal device. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a triangular weir plate in the prior art;

[0025] Figure 2 It is a schematic diagram in the embodiment of the present invention where the lower end of the water level scale is flush with the bottom of the weir opening;

[0026] Figure 3 It is a schematic diagram of the state when the water level scale moves upward in the embodiment of the present invention;

[0027] Figure 4 It is one of the assembly schematic diagrams of the mounting base, triangular weir plate and mounting rod in the embodiment of the present invention;

[0028] Figure 5 It is the second assembly schematic diagram of the mounting base, triangular weir plate and mounting rod in the embodiment of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the float type weir plate flowmeter in the embodiment of the present invention.

[0030] In the figure: 1. Triangular weir plate; 11. Weir opening; 12. Second pin hole; 2. Mounting frame; 21. Mounting rod; 211. First pin hole; 212. Sliding cylinder; 213. Threading loop; 22. Mounting seat; 221. Upper connecting piece; 2211. Connecting ring; 22111. First pair of holes; 22112. First threaded hole; 2212. First fastener; 222. Lower connecting piece; 2221. Clamping body; 22211. Second pair of holes; 22212. Second threaded hole; 2222. Second fastener; 3. Water level gauge; 31. Length scale; 4. Floating body; 41. Level bubble; 5. Temperature measurer; 51. Digital display part; 52. Inductive part; 53. Cable; 6. Camera. Detailed implementation manners

[0031] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be clearer according to the following description and the claims. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0032] As Figure 2 and Figure 3 shown, this embodiment provides a floating weir plate flowmeter, which includes a triangular weir plate 1 vertically arranged in the left-right direction. The middle part of the upper end of the triangular weir plate 1 has a triangular weir opening 11. It also includes a mounting frame 2, a water level gauge 3 and a floating body 4. The mounting frame 2 is installed at the upper end of the triangular weir plate 1. The water level gauge 3 is vertically arranged and slidably installed on the mounting frame 2, and the water level gauge 3 is aligned with the bottom angle of the weir opening 11. The floating body 4 is installed at the lower end of the water level gauge 3. The floating body 4 drives the water level gauge 3 to slide up and down relative to the mounting frame 2 as the water level changes. By arranging the floating body at the lower end of the water level gauge, the floating body will drive the water level gauge to move up and down with the change of the water level intercepted by the triangular weir plate. And when the water level is flush with the bottom of the weir opening, the lower end of the water level gauge is also at the same height as the bottom of the weir opening. The water level gauge has a length scale 31. At this time, the reading at the sliding connection between the water level gauge and the mounting frame can be recorded as A. When the water level rises and is higher than the bottom of the weir opening, when reading is required, the reading of the water level gauge is read in real time as B. And the weir height corresponding to this water level is the absolute value of the difference between A and B.

[0033] In the above technical solution, the mounting bracket 2 includes a mounting rod 21 and a mounting base 22. Both ends of the mounting rod 21 are provided with the mounting bases 22. The mounting rod 21 is placed above the triangular weir plate 1 in the left-right direction, and the mounting bases 22 at both ends thereof are respectively connected to the upper ends of the corresponding ends of the triangular weir plate 1. The water level scale 3 is slidably connected to the middle part of the mounting rod 21, so that both ends of the entire mounting rod can be stably mounted on the triangular weir plate through the mounting bases.

[0034] In this embodiment, a sliding cylinder 212 can be vertically arranged in the middle of the mounting rod 21, and the water level scale 3 can vertically penetrate through the sliding cylinder 212 (that is, the water level scale 3 slides vertically relative to the sliding cylinder 212. At this time, the sliding cylinder can also guide the water level scale, specifically, the sliding cylinder prevents the water level scale from tilting).

[0035] As Figure 4 and Figure 5 As shown, in the above technical solution, the mounting base 22 includes an upper connecting member 221 and a lower connecting member 222. The upper connecting member 221 is connected to the mounting rod 21, and the lower connecting member 222 is connected to the triangular weir plate 1. In this way, the upper connecting member of the mounting base is connected to the mounting rod, and the lower connecting member of the mounting base is connected to the triangular weir plate, that is, the mounting rod is connected to the triangular weir plate through the mounting base; the upper connecting member 221 includes a connecting ring 2211, and the mounting rod 21 passes through the connecting ring 2211 and is connected to the upper connecting member 221, so that the mounting rod can pass through the connecting ring to be lifted; in this embodiment, the upper connecting member further includes a first fastener 2212, and the first fastener is installed on the connecting ring 2211 and is used to fasten the connecting ring 2211 on the mounting rod 21.

[0036] Specifically, as Figure 4 and Figure 5As shown, the first fastener 2212 can be a bolt pin. At this time, a first pair of holes 22111 penetrating through its side wall can be provided on the connecting ring 2211, and a first pin hole 211 aligned with the first pair of holes 22111 on the connecting ring can be provided on the mounting rod 21. At this time, the first fastener can be passed through the first pair of holes and the first pin hole (at this time, the first fastener can also be replaced by a bolt and a nut); in this embodiment, the first fastener 2212 can also be a locking bolt. A first threaded hole 22112 matching with the first fastener 2212 can be provided on the connecting ring 2211. The threaded end of the first fastener is threadedly connected with the first threaded hole, and tightening the first fastener can fasten the connecting ring on the mounting rod (similar to the locking bolt on a vernier caliper); the lower connecting member 222 includes an n-shaped clamping body 2221. The left and right sides of the clamping body 2221 are penetrated, and the clamping body 2221 is used to clamp the upper end of the triangular weir plate 1, so that the clamping body can straddle the upper end of the triangular weir plate (straddling means that the upper end of the triangular weir plate extends into the groove of the clamping body). In this embodiment Figure 2 and Figure 3 in which L represents the liquid level height position.

[0037] Among them, the first pair of holes means that two radially aligned holes are provided on the ring wall of the connecting ring 2211, and these two holes constitute the first pair of holes.

[0038] Specifically, as Figure 4 and Figure 5 shown, in this embodiment, the lower connecting member 222 further includes a second fastener 2222. The second fastener 2222 can be a bolt pin. At this time, a second pair of holes 22211 are provided on the clamping body 2221, and a second pin hole 12 that can be aligned with the second pair of holes 22211 is provided at the upper end of the triangular weir plate 1. At this time, the second fastener 2222 can be passed through the second pair of holes 22211 and the second pin hole 12 (at this time, the second fastener can also be replaced by a bolt and a nut); in this embodiment, the second fastener 2222 can also be a locking bolt. A second threaded hole 22212 can be provided on the side wall of any side of the clamping body 2221. The threaded end of the second fastener 2222 is threadedly connected with the second threaded hole 22212, and loosening the second fastener 2222 can fasten the clamping body 2221 on the triangular weir plate 1.

[0039] The second pair of holes means that holes are provided on the two side walls of the clamping body and are aligned with each other, and these two holes constitute the second pair of holes.

[0040] In the above technical solution, the floating body 4 is straight bar-shaped and horizontally arranged in the left-right direction. The middle part corresponding to the length direction of the floating body 4 is vertically connected to the lower end of the water level scale 3. In this way, the floating body has good stability when holding up the water level scale and is not easy to slide up and down, thus affecting the accuracy of the water level scale measurement.

[0041] In this embodiment, the length of the floating body is greater than the width of the upper end of the weir opening, and the floating body is located on the upstream side of the triangular weir plate, so that the floating body is always in contact with the triangular weir plate (that is, the floating body will not rotate when moving up and down).

[0042] The floating body can be replaced by a rigid plastic pipe with both ends blocked.

[0043] In the installation of the triangular weir plate in this embodiment, it is only necessary to ensure that both of the spirit levels are in a horizontal state.

[0044] In the above technical solution, horizontal bubbles 41 are provided at both ends of the floating body 4. In this way, the verticality of the installation of the water level scale can be calibrated by the horizontal bubbles during assembly.

[0045] In the above technical solution, the zero scale line of the water level scale 3 is located at the upper end (that is, the reading of the length scale 31 increases gradually from top to bottom), and when the lower end of the water level scale is aligned with the bottom of the weir opening, the scale at the sliding connection between the water level scale and the mounting rod is exactly 0 at this time. In this way, it is more convenient to read the water level scale. At this time, the corresponding A value is 0, that is, the corresponding B value during water level measurement is the actual reading of the weir height (wherein, when reading the water level scale, the reading is based on the upper end of the sliding cylinder. That is, when the lower end of the water level scale is aligned with the bottom of the weir opening, the upper end of the sliding cylinder is aligned with the zero scale line of the water level scale at this time). In order to prevent the water level scale from moving downward and detaching from the mounting rod when the water level is lower than the bottom of the weir opening, a smooth rod portion can also be extended upward at the upper end of the water level scale at this time (at this time, the zero scale line is in the middle of the water level scale), that is, when the water level scale moves downward until the floating body touches the bottom, the water level scale can still remain sleeved in the sliding cylinder.

[0046] Such as Figure 6As shown, the above technical solution further includes a digital display temperature measurer 5. The digital display part of the temperature measurer 5 is arranged on the mounting rack 2, and the sensing part of the temperature measurer 5 is immersed underwater, so that the temperature of the water body can be conveniently measured by the temperature measurer. Further, a camera 6 is also arranged on the mounting rack 2 for photographing the temperature measurer 5 and the water level scale 3. In this way, the camera can take real-time photos of the real-time readings at the sliding connection of the water level scale and the mounting rack and the real-time readings of the temperature measurer and transmit them to the terminal device remotely, so that the measurement personnel can know the real-time weir height parameters of the triangular weir plate through the terminal device in real time. In this embodiment, the camera can adopt an existing monitoring camera on the market with built-in remote data transmission (which can be built with 3G, 4G or 5G communication modules, which belongs to the prior art and will not be elaborated here).

[0047] As Figure 6 shown, in this embodiment, the camera is installed on the mounting rod, and a wire passing loop 213 can be arranged at one end of the mounting rod, which is mainly used for the cable 53 between the digital display part 51 and the sensing part 52 of the temperature measurer to pass through (and the position where the cable 53 passes through the wire passing loop can be tied and processed by a binding band).

[0048] The temperature measurer in this embodiment belongs to the prior art and will not be elaborated here. In this embodiment, the display surface of the digital display part and the scale side of the water level scale are both within the shooting field of view of the camera, so that the background personnel can check the temperature value displayed by the digital display part and the real-time scale of the water level scale through the terminal device (which can be a computer or a smart phone), and thus the on-site implementation flow rate can be obtained by referring to the "Triangular Weir Head Height and Flow Rate Calculation Table" (the head height is the weir height in this embodiment).

[0049] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any ordinary technician in the industry can smoothly implement the present invention according to the description shown in the accompanying drawings and the above description. However, any equivalent changes such as slight modifications, decorations and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A float - type weir plate flowmeter, comprising a triangular weir plate (1) vertically arranged in the left - right direction. The middle part of the upper end of the triangular weir plate (1) has a triangular weir opening (11), and it is characterized in that, It further includes a mounting bracket (2), a water level scale (3), and a floating body (4). The mounting bracket (2) is installed at the upper end of the triangular weir plate (1). The water level scale (3) is vertically arranged and slidably installed on the mounting bracket (2), and the water level scale (3) is aligned with the bottom corner of the weir opening (11). The floating body (4) is installed at the lower end of the water level scale (3), and the floating body (4) drives the water level scale (3) to slide up and down relative to the mounting bracket (2) as the water level changes.

2. The float weir plate flowmeter according to claim 1, characterized in that, The mounting bracket (2) includes a mounting rod (21) and mounting seats (22). Mounting seats (22) are provided at both ends of the mounting rod (21). The mounting rod (21) is placed above the triangular weir plate (1) in the left-right direction, and the mounting seats (22) at its two ends are respectively connected to the upper ends of the corresponding ends of the triangular weir plate (1). The water level scale (3) is slidably connected to the middle of the mounting rod (21).

3. The float weir plate flowmeter according to claim 2, characterized in that The mounting seat (22) includes an upper connecting member (221) and a lower connecting member (222). The upper connecting member (221) is connected to the mounting rod (21), and the lower connecting member (222) is connected to the triangular weir plate (1).

4. The float weir plate flowmeter according to claim 3, characterized in that, The upper connecting member (221) includes a connecting ring (2211). The mounting rod (21) passes through the connecting ring (2211) and is connected to the upper connecting member (221).

5. The float-type weir plate flowmeter according to claim 3, characterized in that, The lower connecting member (222) includes an n-shaped clamping body (2221). The left and right sides of the clamping body (2221) are through, and the clamping body (2221) is used for clamping the upper end of the triangular weir plate (1).

6. The float-type weir plate flowmeter according to claim 1, wherein The floating body (4) is straight bar-shaped and horizontally arranged in the left-right direction. The middle part corresponding to the length direction of the floating body (4) is vertically connected to the lower end of the water level scale (3).

7. The float weir plate flowmeter according to claim 6, characterized in that, Horizontal bubbles (41) are provided at both ends of the floating body (4).

8. The float-type weir plate flowmeter according to claim 1, wherein The zero scale line of the water level scale (3) is located at the upper end.

9. The float-type weir plate flowmeter according to claim 1, characterized in that, It further includes a digital display type temperature measuring device (5). The digital display part of the temperature measuring device (5) is arranged on the mounting bracket (2), and the sensing part of the temperature measuring device (5) is immersed underwater.

10. The float weir plate flowmeter according to claim 9, wherein, It further includes a camera (6) arranged on the mounting bracket (2) for photographing the temperature measuring device (5) and the water level scale (3).

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