River flow measuring device

Abstract

The utility model relates to the technical field of river flow measurement, and provides a river flow measuring device, which comprises a range finder and two radars, and the two radars are respectively positioned on two sides of a river channel; the positioning device is arranged on one side of the river channel, and the range finder and one radar are arranged on the positioning device; the foundation screw penetrates through the external threaded pipe and then enters the ground, and the upper portion of the foundation screw abuts against the external threaded pipe; an operation window is arranged on the rear side of the mounting box, a sliding groove is formed in the lower side of the mounting box, the mounting box is rotationally and slidably arranged on the chassis, the external threaded pipe is located in the sliding groove, and a radar is arranged on the mounting box; the locking nut is in threaded connection with the external threaded pipe, and the lower end of the locking nut abuts against the upper end of the lower side wall of the mounting box; one end of the extension rod is arranged at the front end of the mounting box, the other end is used for mounting a range finder, and the extension rod is located above the river. According to the technical scheme, a radar and a range finder are convenient to install, a river channel is comprehensively scanned, and the sectional area of the river is calculated.

Description

Technical Field

[0001] The utility model relates to the technical field of river flow measurement, in particular to a river flow measurement device. Background Art

[0002] Monitoring river flow is a crucial component of hydrological environmental monitoring. A variety of existing detection equipment is used to measure flow within rivers. Conventional flowmeters measure single-point flow velocity, but the resulting velocity values ​​have significant errors relative to the overall flow rate. Prior art has disclosed formulas and algorithms for calculating river flow using the Bernoulli principle. Based on the Bernoulli principle, by measuring parameters such as velocity differences and pressure differences, the velocity at a specific location can be calculated. The resulting result accurately reflects the flow rate. Using the available river cross-sectional area data, the flow rate can be calculated from the area and velocity. However, existing detection methods utilize a single radar to scan the river, resulting in blind spots and inaccurate cross-sectional area measurements. Currently, there is no suitable measurement device for radar and rangefinder installation, making it impossible to accurately measure the cross-sectional area of ​​a river. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a river flow measuring device for the above-mentioned technical deficiencies, which is convenient for installing radar and rangefinder, thereby comprehensively scanning the river channel and calculating the cross-sectional area of ​​the river.

[0004] The technical solution adopted by the utility model is to provide a river flow measurement device, including a rangefinder and two radars, characterized in that the two radars are respectively located on both sides of the river channel and are used to scan the vertical cross-section of the river channel; and further comprising:

[0005] A positioning device is provided on one side of the river channel, wherein the rangefinder and one of the radars are provided on the positioning device, and the positioning device comprises:

[0006] The chassis is used to be fixed on the ground beside the river channel, and the four corners of the chassis are provided with countersunk holes, and the middle part of the chassis is provided with an external threaded pipe;

[0007] An anchor screw, which penetrates the external threaded pipe and then enters below the ground, with its upper portion abutting against the external threaded pipe;

[0008] An installation box has an operation window on the rear side and a slide groove on the lower side. The installation box is rotatably and slidably arranged on the chassis, the externally threaded tube is located in the slide groove, and one of the radars is arranged on the installation box;

[0009] A locking nut, threadedly connected to the externally threaded pipe, with its lower end being used to abut against the upper end of the lower side wall of the installation box;

[0010] An extension rod has one end arranged at the front end of the installation box and the other end used for installing a rangefinder. The extension rod is located above the river, and the rangefinder is used for measuring the water level.

[0011] To further optimize this technical solution, the positioning device further includes:

[0012] The mounting frame is L-shaped and is fixed to the upper end of the mounting box by bolts. The radar is mounted on the mounting frame, and the radar is arranged on the mounting box through the mounting frame.

[0013] Further optimization of this technical solution also includes:

[0014] A support tube, sleeved on the extension rod;

[0015] A support frame, one end of which is arranged at the front end of the installation box and the other end is arranged on the support tube. The support frame includes an oblique support rod, which is located at the lower side of the support tube. The upper end of the oblique support rod is arranged on the support tube, and the lower end of the oblique support rod is arranged on the installation box.

[0016] Further optimization of this technical solution also includes:

[0017] A water entry rod has one end arranged on the installation box and the other end extending into the river. The end of the water entry rod extending into the river is used for installing the underwater detection equipment.

[0018] Further optimization of this technical solution also includes:

[0019] A fixing seat, arranged on the installation box;

[0020] A connecting rod has one end rotatably arranged on the fixing seat and the other end has a threaded portion. The end of the water entry rod is threadedly connected to the threaded portion. The water entry rod is swung up and down on the installation box through the connecting rod.

[0021] Further optimization of this technical solution also includes:

[0022] A sliding seat, slidably arranged on the oblique support rod;

[0023] A limiting ring is sleeved on the water entry rod, the limiting ring has a rotating shaft, the rotating shaft is rotatably arranged on the slide, and the limiting ring slides along with the slide;

[0024] A fastening bolt is threadedly connected to the slide seat, and one end of the bolt abuts against the oblique support rod, so as to fix the slide seat.

[0025] Further optimization of this technical solution also includes:

[0026] The mounting plate has a mounting groove. There are several mounting plates. The mounting plates are arranged at one end of the water entry rod and / or at one end of the extension rod for installing underwater detection equipment or rangefinder.

[0027] To further optimize the technical solution, there are several water entry rods, and the several water entry rods are all arranged on the installation box.

[0028] The beneficial effects of the present invention are:

[0029] 1. Two radars are set up on both sides of the river, which can scan the river section more accurately. Together with the rangefinder, the water surface height can be measured, and then the cross-sectional area of ​​the water flow can be calculated.

[0030] 2. The positioning device can be used to conveniently install the radar and rangefinder. The chassis is fixed to the ground on both sides of the river channel through anchor screws, which is more stable. The installation box can be rotated and slid on the chassis, and the position of the installation box can be easily adjusted, so that the radar and rangefinder can better detect the position of the river channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the utility model arranged on both sides of the river;

[0033] Figure 3 This is a schematic diagram of the structure of the utility model from a front side perspective;

[0034] Figure 4 For the utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0035] Figure 5 This is a schematic diagram of the structure of the utility model from a rear perspective;

[0036] Figure 6 This is a schematic structural diagram of the positioning device of the present utility model;

[0037] Figure 7 For the utility model Figure 6 Schematic diagram of the structure viewed from above;

[0038] Figure 8 For the utility model Figure 7 Schematic diagram of the cross-sectional structure at the AA position;

[0039] Explanation of the marks in the figure: 1. Rangefinder; 2. Radar; 3. Positioning device; 301. Chassis; 3011. Countersunk hole; 3012. Externally threaded pipe; 302. Anchor screw; 303. Mounting box; 3031. Operating window; 3032. Slide; 304. Locking nut; 305. Extension rod; 306. Mounting frame; 4. Support tube; 5. Support frame; 501. Oblique support rod; 6. Water entry rod; 7. Fixed seat; 8. Connecting rod; 801. Threaded part; 9. Slide; 10. Limiting ring; 1001. Rotating shaft; 11. Fastening bolt; 12. Mounting plate; 1201. Mounting slot. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0041] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0042] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0044] like Figure 1-8As shown, a river flow measurement device includes a rangefinder 1 and two radars 2, the two radars 2 are located on both sides of the river channel, and are used to scan the vertical cross-section of the river channel; the device also includes: a positioning device 3, which is located on one side of the river channel, and the rangefinder 1 and one of the radars 2 are located on the positioning device 3, and the positioning device 3 includes: a chassis 301, which is used to be fixed on the ground beside the river channel, and the four corners of the chassis 301 have countersunk holes 3011, and the middle of the chassis 301 has an external threaded tube 3012; an anchor screw 302, which penetrates the external threaded tube 3012 and enters below the ground, and the upper part abuts against the external threaded tube. Tube 3012; an installation box 303, having an operation window 3031 on the rear side and a slide groove 3032 on the lower side, the installation box 303 is rotatably and slidably set on the chassis 301, the externally threaded tube 3012 is located in the slide groove 3032, and a radar 2 is set on the installation box 303; a locking nut 304 is threadedly connected to the externally threaded tube 3012, and the lower end is used to abut against the upper end of the lower side wall of the installation box 303; an extension rod 305, one end of which is set at the front end of the installation box 303, and the other end is used to install the rangefinder 1, the extension rod 305 is located above the river, and the rangefinder 1 is used to measure the water level.

[0045] When in use, two radars 2 are respectively set on both sides of the river channel to jointly scan the river section. The rangefinder 1 and one of the radars 2 are installed on the positioning device 3, which is more convenient to install. Of course, the positioning device 3 can be set on both sides of the river channel, and the radar 2 on the other side can also be installed on a positioning device 3, and multiple rangefinders 1 can be set to more accurately reflect the water surface height.

[0046] Chassis 301 can be positioned at its four corners by inserting ground pins into countersunk holes 3011. Anchor screws 302 are screwed into the ground in the middle to reinforce positioning, making chassis 301 more stable. Then, mounting box 303 is placed on chassis 301, with the external thread rolling into the chute 3032. The length of chute 3032 is greater than the outer diameter of the external threaded tube 3012. Mounting box 303 can be rotated and slid to adjust its position, allowing the front side of mounting box 303 to face the river. Due to factors such as the hardness of the river ground, chassis 301 may need to adjust its angle to find the optimal fixing position for ground pins and anchor screws 302 during installation. Mounting box 303 can be adaptively adjusted by rotating and sliding to face the river. Enter through operating window 3031 and tighten locknut 304 to secure mounting box 303 to chassis 301. An anti-loosening structure can be added between locknut 304 and mounting box 303 to improve fixing stability. Extension rod 305 is positioned above the river's current, facilitating vertical measurement of the water's height by rangefinder 1. Rangefinder 1 uses a Doppler flowmeter to detect the water surface height. Combined with the river's cross-sectional data scanned by radar 2, the cross-sectional area of ​​the water can be calculated. Rangefinder 1 measures the height from the water surface to rangefinder 1. Combined with the river's cross-sectional data, a reference point is selected and the water level can be calculated by subtraction.

[0047] Furthermore, the positioning device 3 also includes: an L-shaped mounting frame 306 , which is fixed to the upper end of the mounting box 303 by bolts. The radar 2 is mounted on the mounting frame 306 , and the radar 2 is set on the mounting box 303 through the mounting frame 306 .

[0048] During use, mounting box 303 can be equipped with a mounting bracket 306 to facilitate installation of radar 2. Two mounting brackets 306 can be placed side by side at the top of mounting box 303, with the other bracket 306 used to mount other hydrological environment monitoring equipment. Mounting slots 1201 are defined on mounting bracket 306 to facilitate installation of various devices. The "L"-shaped mounting bracket 306 can be bolted to mounting box 303, with a gap between its lower end and the mounting box 303 to provide clearance for bolts and nuts. Mounting bracket 306 can be installed facing forward or backward.

[0049] Furthermore, it also includes: a support tube 4, which is sleeved on the extension rod 305; a support frame 5, one end of which is arranged at the front end of the installation box 303, and the other end is arranged on the support tube 4, the support frame 5 includes an oblique support rod 501, the oblique support rod 501 is located on the lower side of the support tube 4, the upper end of the oblique support rod 501 is arranged on the support tube 4, and the lower end of the oblique support rod 501 is arranged on the installation box 303.

[0050] When in use, the support frame 5 and the support tube 4 can reinforce the stability of the extension rod 305, and the lower oblique support rod 501 can better support the extension rod 305 in the vertical direction.

[0051] Furthermore, it also includes: a water entry rod 6, one end of which is set on the installation box 303, and the other end extends into the river. The end of the water entry rod 6 extending into the river is used to install the underwater detection equipment.

[0052] When in use, the water entry rod 6 is tilted relative to the extension rod 305, with one end being arranged on the installation box 303 for connection, and the other end being able to extend into the river, so as to facilitate the installation of underwater detection equipment, such as a pressure gauge, a flow meter, etc., and the underwater equipment can be installed according to the Bernoulli principle to measure the flow rate and other hydrological environment monitoring needs. When the numerical difference of pressure and flow rate needs to be measured at multiple points, multiple water entry rods 6 can be set or the detection equipment can be installed at the end of the water entry rod 6, and the installation can be spaced. The setting of the water entry rod 6 makes it easy to set the height position of the monitoring point, and the installation can be completed on the water, which is more convenient. The water entry rod 6 can be a telescopic rod structure.

[0053] Furthermore, it also includes: a fixed seat 7, which is arranged on the installation box 303; a connecting rod 8, one end of which is rotatably arranged on the fixed seat 7, and the other end has a threaded portion 801, and the end of the water entry rod 6 is threadedly connected to the threaded portion 801, and the water entry rod 6 is swung up and down on the installation box 303 through the connecting rod 8.

[0054] During use, the entry rod 6 can swing up and down, facilitating adjustment of its height in the water. The entry rod 6 is threadedly connected to the connecting rod 8, making installation more convenient and stable. The connecting rod 8 can be a T-shaped structure, with a horizontal portion pivotally connected to the mounting base and a vertical portion provided with a threaded portion 801. The connecting rod 8 swings up and down on the fixing base 7. The fixing base 7 can be located at the front end of the installation box 303.

[0055] Furthermore, it also includes: a slide 9, which is slidably set on the oblique support rod 501; a limiting ring 10, which is sleeved on the water entry rod 6, and the limiting ring 10 has a rotating shaft 1001, and the rotating shaft 1001 is rotatably set on the slide 9, and the limiting ring 10 slides with the slide 9; a fastening bolt 11, which is threadedly connected to the slide 9, and one end of which abuts on the oblique support rod 501, is used to fix the slide 9.

[0056] During use, after the entry rod 6 is swung up and down to adjust its height, the slide 9 and the limiting ring 10 can position the entry rod 6 and maintain its height. As the entry rod 6 swings up and down, the limiting ring 10 follows the movement of the entry rod 6, and the slide 9 moves accordingly. The slide 9 slides on the inclined support rod 501, and the tightening bolt 11 can fix the position of the slide 9. The limiting ring 10 then restricts the entry rod 6 from swinging, thus achieving positioning.

[0057] Furthermore, it also includes: a mounting plate 12, having a mounting groove 1201, and there are several mounting plates 12. The mounting plates 12 are arranged at one end of the water entry rod 6 and / or at one end of the extension rod 305, and are used to install the underwater detection equipment or the rangefinder 1.

[0058] When in use, the mounting plate 12 can be in the shape of a strip, and the mounting groove 1201 is in the shape of a strip, which is convenient for installing various detection equipment. The mounting plate 12 is provided at the end of the extension rod 305 to install the rangefinder 1, and the mounting plate 12 is provided at the end of the water entry rod 6 to install underwater detection equipment such as a pressure gauge or a current meter.

[0059] Furthermore, there are several water entry rods 6 , and the several water entry rods 6 are all set on the installation box 303 .

[0060] When in use, multiple water entry rods 6 are set up to facilitate the installation of various equipment, and the height position in the water can be adjusted separately. If multiple water entry rods 6 are set up at the same height position, it is convenient to install the same type of equipment to detect data in the same height water level, and then obtain the difference, and use the difference to perform Bernoulli calculation. Compared with the data directly detected by the detection equipment, the final flow rate measurement value is more accurate.

[0061] Various underwater detection devices and Bernoulli calculation formulas are all existing public technologies. This measurement device solves the installation problem of radar 2 and rangefinder 1 and provides installation locations for various detection devices. Rangefinder 1 and radar 2 are only schematic installation locations and do not represent the specific product structure.

[0062] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A river flow measurement device comprising a rangefinder (1) and two radars (2), characterized in that: The two radars (2) are respectively located on both sides of the river channel and are used to scan the vertical cross section of the river channel; and further include: A positioning device (3) is arranged on one side of a river channel, wherein the rangefinder (1) and one of the radars (2) are arranged on the positioning device (3), and the positioning device (3) comprises: A chassis (301) is used to be fixed on the ground beside the river channel. The four corners of the chassis (301) are provided with countersunk holes (3011), and the middle of the chassis (301) is provided with an external threaded pipe (3012); The anchor screw (302) passes through the external threaded tube (3012) and then enters below the ground, with the upper portion abutting against the external threaded tube (3012); An installation box (303) has an operation window (3031) on the rear side and a slide groove (3032) on the lower side. The installation box (303) is rotatably and slidably arranged on the chassis (301). The externally threaded tube (3012) is located in the slide groove (3032). One of the radars (2) is arranged on the installation box (303); A locking nut (304) is threadedly connected to the externally threaded tube (3012), and the lower end of the locking nut is used to abut against the upper end of the lower side wall of the installation box (303); An extension rod (305) has one end arranged at the front end of the installation box (303) and the other end used for installing a distance meter (1). The extension rod (305) is located above the river, and the distance meter (1) is used for measuring the water level.

2. A river flow measurement device according to claim 1, characterized in that: The positioning device (3) further comprises: The mounting frame (306) is L-shaped and is fixed to the upper end of the mounting box (303) by bolts. The radar (2) is mounted on the mounting frame (306), and the radar (2) is set on the mounting box (303) through the mounting frame (306).

3. A river flow measurement device according to claim 1, characterized in that: Also includes: A support tube (4) is sleeved on the extension rod (305); A support frame (5) is provided at one end on the front end of the installation box (303) and at the other end on the support tube (4). The support frame (5) comprises an oblique support rod (501), the oblique support rod (501) is located on the lower side of the support tube (4), the upper end of the oblique support rod (501) is provided on the support tube (4), and the lower end of the oblique support rod (501) is provided on the installation box (303).

4. A river flow measurement device according to claim 3, characterized in that: Also includes: A water entry rod (6) has one end arranged on the installation box (303) and the other end extending into the river. The end of the water entry rod (6) extending into the river is used for installing underwater detection equipment.

5. A river flow measurement device according to claim 4, characterized in that: Also includes: A fixing seat (7) is provided on the installation box (303); A connecting rod (8) has one end rotatably mounted on the fixing seat (7) and the other end having a threaded portion (801). The end of the water entry rod (6) is threadedly connected to the threaded portion (801). The water entry rod (6) is swung up and down on the installation box (303) via the connecting rod (8).

6. A river flow measurement device according to claim 5, characterized in that: Also includes: A sliding seat (9) is slidably arranged on the oblique support rod (501); A limiting ring (10) is sleeved on the water entry rod (6), the limiting ring (10) has a rotating shaft (1001), the rotating shaft (1001) is rotatably arranged on the sliding seat (9), and the limiting ring (10) slides following the sliding seat (9); A fastening bolt (11) is threadedly connected to the slide seat (9), and one end of the fastening bolt abuts against the oblique support rod (501) for fixing the slide seat (9).

7. A river flow measurement device according to claim 4, characterized in that: Also includes: A mounting plate (12) has a mounting groove (1201). The mounting plates (12) are provided in plurality. The mounting plates (12) are arranged at one end of the water entry rod (6) and / or at one end of the extension rod (305) and are used for installing underwater detection equipment or a rangefinder (1).

8. A river flow measurement device according to claim 6, characterized in that: There are a plurality of water entry rods (6), and the plurality of water entry rods (6) are all arranged on the installation box (303).

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