An open channel flow intelligent monitoring device and system

Abstract

The present invention belongs to the technical field of river water flow detection, and specifically is an open channel flow intelligent monitoring device and system, comprising an ultrasonic transducer, a water level meter and a host, wherein the ultrasonic transducer is used to measure the flow velocity of the water flow section, the water level meter is used to measure the water level height, and the host is used to control and analyze the open channel flow; the present invention also comprises a support frame, wherein the support frame is installed on the bank of the open channel, and the middle position of the support frame is located above the open channel water flow; when the rotating belt is away from the guide strip, the rotating belt extends from the annular groove, and the salvage rod flips from a mutually close state to a mutually distant state, that is, it is located on both sides of the rotating belt; as the rotating belt drives the salvage rod to enter the water, floating objects such as aquatic plants and garbage in the water are salvaged, thereby improving the cleanliness in the open channel, reducing the impact on the ultrasonic transducer, and improving the working effect of the ultrasonic transducer, thereby improving the monitoring accuracy of the open channel flow.

Description

Technical Field

[0001] The present invention belongs to the technical field of river water flow detection, and in particular relates to an open channel flow intelligent monitoring device and system. Background Art

[0002] As the requirements for hydrological monitoring of small and medium-sized rivers in national flood control and drought relief work continue to increase, many river basins and large and medium-sized reservoirs and power stations have gradually established automatic water regime monitoring systems, and water flow monitoring is an important part of the monitoring system; open channels are one of the most common hydraulic structures in the region and the most important step in water transmission, so the monitoring of open channel flow is of great significance.

[0003] Open channel flow monitoring methods include the ultrasonic time difference method: usually the ultrasonic time difference method measurement system includes ultrasonic transducers, water level meters and other equipment; this method uses the ultrasonic time difference method as the calculation basis to measure the flow velocity of the water-passing section, and calculates the water flow rate of the section based on the known channel width of the section and the water level measured by the water level meter.

[0004] However, the following problems may occur during the actual monitoring process:

[0005] 1. The ultrasonic transducer cannot be installed too shallow or too deep. If it is installed too shallow, when the water level in the channel drops, the transducer will be exposed to the air and cannot measure the flow velocity. If the transducer is exposed to the air for a long time, the transducer function is easy to fail. If the transducer is installed too deep, the measured flow velocity cannot reflect the flow velocity of the entire section.

[0006] 2. Floating objects such as water plants and duckweed in the open channel may block the ultrasonic transducer as it flows with the open channel water, resulting in the inability to send or receive signals, especially in the case of thick accumulation, which will cause the signal to be completely unable to penetrate; and the flowing floating objects may entangle or collide with the ultrasonic transducer, causing damage to the instrument and affecting monitoring. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes an open channel flow intelligent monitoring device and system.

[0008] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention proposes an open channel flow intelligent monitoring device, including an ultrasonic transducer, a water level meter and a host, wherein the ultrasonic transducer is used to measure the flow velocity of the water flow section, the water level meter is used to measure the water level height, and the host is used to control and analyze the open channel flow; and further includes:

[0009] A support frame, wherein the support frame is installed on the bank of an open channel, and the middle position of the support frame is located above the water flow in the open channel; a rotating shaft is rotatably connected to the support frame, a rotating disk is evenly fixed on the rotating shaft, and a motor is installed on one side of the support frame, and one end of the rotating shaft is connected to the motor; a grating plate is evenly installed on one side of the support frame, and the grating plate is inclined and extends into the open channel; an annular groove is provided on the grating plate, and a rotating belt is sleeved in the annular groove and on the rotating disk; guide strips are provided on the inner walls of both sides of the annular groove, and the guide strips are away from the water surface and the inside of the grating plate; guide grooves are provided on both sides of the rotating belt, and the guide strips are located in the guide grooves; salvage rods are hinged on both sides of the rotating belt through torsion springs, and the symmetrical salvage rods on both sides of the rotating belt are a group, and multiple groups of salvage rods are provided on the rotating belt;

[0010] A cleaning box is arranged on a supporting frame, and the bottom of the cleaning box is inclined; cleaning grooves are evenly opened on one side of the cleaning box, and the turntable and the rotating belt extend into the cleaning grooves; a cleaning rod is arranged in the cleaning box, and the cleaning rod is located between adjacent salvage rods, and the cleaning rod is inclined.

[0011] Preferably, a No. 1 drive bar is provided on the portion of the grating plate close to and submerged in the water, and the No. 1 drive bar is arc-shaped, and both ends of the grating plate are arc-shaped; a sleeve is rotatably connected to the salvage rod, and when the sleeve is close to the water surface, it is located between the No. 1 drive bar and the grating plate, and the No. 1 drive bar contacts the outer ring surface of the sleeve; circular holes are evenly provided on the salvage rod, and balls are provided in the circular holes, and a spring is provided between the ball and the circular hole; depressions are evenly provided in the sleeve, and a part of the ball is located in the circular hole, and the other part is located in the depression.

[0012] Preferably, the surface of the sleeve is evenly provided with receiving grooves, and a winding sheet is hinged in the receiving groove via a torsion spring, and two sides of the winding sheet are in close contact with the inner wall of the receiving groove.

[0013] Preferably, the winding sheet is evenly provided with winding grooves at a position close to the storage groove, and a winding strip is provided in the middle of the winding groove through a torsion spring, and two winding strips are provided in one winding groove, and the winding strip is inclined; a No. 2 driving strip is provided at the end of the grating plate away from the water surface, and the No. 2 driving strip passes through the cleaning groove; there are multiple cleaning rods in the cleaning box, and when the sleeve is located in the cleaning box, it moves through adjacent cleaning rods.

[0014] Preferably, the bottom of the cleaning box is rotatably connected to a conveyor belt, and vertical plates are evenly arranged on the conveyor belt; both sides of the vertical plates scrape the inner wall of the cleaning box, and the edge of the vertical plates contacts the top of the sleeve.

[0015] Preferably, a support rod is installed on one side of the grating plate, and a rotating wheel is evenly connected to the support rod, and the side of the support rod away from the grating plate is a cutting edge; two rotating wheels are provided on each of the support rods, and one of the rotating wheels is close to the rotating belt; toggle blocks are evenly provided on the side of the rotating wheel close to the rotating belt, and the toggle blocks are distributed centripetally; columns are provided on both sides of the open channel, and pull ropes are provided on the columns and the rotating wheels, and the pull ropes are made of lightweight materials.

[0016] Preferably, a sleeve is provided on the column, and the pull rope passes through the sleeve, and a cutting edge is provided at one end of the sleeve close to the open channel.

[0017] Preferably, the support frame is evenly and slidably connected to a main lifting rod on one side away from the grid plate, and the main lifting rod is a hollow structure, and a secondary lifting rod is slidably connected inside the main lifting rod; the secondary lifting rod is located on both sides of the open channel, and an ultrasonic transducer is installed at one end of the secondary lifting rod; a lifting device is installed on the support frame, and the lifting device is connected to the top of the main lifting rod.

[0018] Preferably, one end of the main lifting rod is threadedly connected with a bolt, and the bolts are symmetrically distributed up and down; the ends of the bolts close to each other are rotatably connected with triangular blocks, and the triangular blocks are right-angled triangles, the right-angled surface of the triangular block contacts one end of the main lifting rod, and the sharp part of the triangular block is inserted into the surface of the auxiliary lifting rod.

[0019] A control system applicable to the above-mentioned open channel flow intelligent monitoring device, the control system comprising:

[0020] A flow velocity detection unit, wherein the flow velocity detection unit uses an ultrasonic transducer to measure the flow velocity of a water flow section and generates data to be sent to a host computer;

[0021] A water level detection unit, wherein the water level detection unit uses a water level meter to measure the real-time water level of the open channel and generates data to be sent to the host;

[0022] An open channel cleaning unit, which uses monitoring equipment to salvage garbage from the open channel, thereby realizing the normal operation function of the flow rate detection unit;

[0023] The CNC center uses a host computer to calculate the water flow rate through the open channel width, flow velocity and water level, and compares it with previous data, and sends and displays the final comparison result.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. An open channel flow intelligent monitoring device and system of the present invention, when the rotating belt is away from the guide bar, the rotating belt extends from the annular groove, and the salvage rod flips from a state of being close to each other to a state of being away from each other, that is, located on both sides of the rotating belt; as the rotating belt drives the salvage rod into the water, floating objects such as aquatic plants and garbage in the water are picked up, thereby improving the cleanliness of the open channel, reducing the impact on the ultrasonic transducer, improving the working effect of the ultrasonic transducer, and thus improving the monitoring accuracy of the open channel flow.

[0026] 2. An intelligent open channel flow monitoring device and system of the present invention, when the rotating belt and the salvage rod are moving, the cleaning rod is located between adjacent salvage rods to scrape off floating objects or aquatic plants on the salvage rod and the rotating belt; moreover, when the salvage rod passes through the cleaning trough and moves away from the cleaning box, the inner wall of the cleaning trough scrapes the surface of the salvage rod again to remove the remaining aquatic plants entangled on the salvage rod, and through multiple cleaning methods, the salvaged floating objects are removed, the cleanliness of the salvaged parts is improved, and the residual floating objects are prevented from being mixed into the open channel again, thereby improving the salvage efficiency, thereby improving the cleanliness in the open channel, and further improving the monitoring accuracy of the open channel flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 It is a schematic diagram of the working state of the pull rope;

[0030] Figure 3 It is a three-dimensional cross-sectional view of the main lifting rod;

[0031] Figure 4 It is a three-dimensional picture of the grille plate;

[0032] Figure 5 It is a state diagram of the sleeve driving the runner to rotate;

[0033] Figure 6 It is a three-dimensional cross-sectional view of the grille plate;

[0034] Figure 7 It is a three-dimensional picture of the dirt cleaning box;

[0035] Figure 8 It is a state diagram of the sleeve moving in the cleaning box;

[0036] Fig. 9 It is another state diagram of the sleeve moving in the cleaning box;

[0037] Fig.10 It is a three-dimensional cross-sectional view of the salvage rod.

[0038] In the figure: ultrasonic transducer 1, support frame 2, rotating shaft 21, turntable 22, motor 23, grille plate 24, annular groove 25, rotating belt 26, guide bar 27, guide groove 28, salvage rod 29, cleaning box 3, cleaning groove 31, cleaning rod 32, No. 1 driving bar 33, sleeve 34, round hole 35, ball 36, recess 37, storage groove 4, winding sheet 41, winding groove 42, winding bar 43, No. 2 driving bar 44, conveyor belt 5, vertical plate 51, support rod 52, rotating wheel 53, toggle block 54, column 55, pull rope 56, sleeve 57, main lifting rod 6, auxiliary lifting rod 61, lifting device 62, bolt 63, triangular block 64. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] An open channel flow intelligent monitoring device, as shown in the accompanying drawings of the specification Figure 1-10 As shown, it includes an ultrasonic transducer 1, a water level meter and a host. The ultrasonic transducer 1 is used to measure the flow velocity of the water flow section, the water level meter is used to measure the water level height, and the host is used to control and analyze the open channel flow; the ultrasonic transducer 1 is a conventional device for monitoring water flow, and its function is to convert the input electrical power into ultrasonic waves and then transmit them through the sensor; when monitoring the open channel water flow, the ultrasonic transducer 1 is installed on both sides of the channel wall, and the number of paired transducers arranged obliquely on both sides of the river is selected according to the width of the channel; the ultrasonic transducer 1 transmits ultrasonic waves downstream from one bank of the river channel, and the other bank receives them, and then works in the reverse direction; the average flow velocity of the corresponding water layer is calculated according to the time difference measured by the downstream and upstream transmission, and the work of collecting and monitoring the open channel water flow velocity is completed; the water level meter is a conventional sensor for detecting water level; it also includes:

[0042] Support frame 2, support frame 2 is installed on the bank of open channel, and the middle position of support frame 2 is located above the water flow in open channel; a rotating shaft 21 is rotatably connected to support frame 2, a turntable 22 is evenly fixed on the rotating shaft 21, and a motor 23 is installed on one side of support frame 2, and one end of rotating shaft 21 is connected to motor 23; a grating plate 24 is evenly installed on one side of support frame 2, and grating plate 24 is inclined and extends into the open channel; an annular groove 25 is provided on the grating plate 24, and a rotating belt 26 is sleeved in the annular groove 25 and on the turntable 22; guide strips 27 are provided on the inner walls of both sides of the annular groove 25, and the guide strips 27 are away from the water surface, and the guide strips 27 are away from the inside of the grating plate 24; guide grooves 28 are provided on both sides of the rotating belt 26, and the guide strips 27 are located in the guide grooves 28; salvage rods 29 are hinged on both sides of the rotating belt 26 through torsion springs, and the salvage rods 29 symmetrical on both sides of the rotating belt 26 are a group, and multiple groups of salvage rods 29 are provided on the rotating belt 26;

[0043] A cleaning box 3 is provided on the support frame 2, and the bottom of the cleaning box 3 is inclined; cleaning grooves 31 are evenly opened on one side of the cleaning box 3, and the rotating disk 22 and the rotating belt 26 extend into the cleaning grooves 31; a cleaning rod 32 is provided in the cleaning box 3, and the cleaning rod 32 is located between adjacent salvage rods 29, and the cleaning rod 32 is inclined;

[0044] Specific working process: when monitoring an open channel, the motor 23 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the rotating belt 26 to rotate in the annular groove 25 through the turntable 22, and the rotating belt 26 drives the salvage rod 29 to move in an annular track around the surface of the grid plate 24; when the grid plate 24 intercepts floating objects, the surface area of ​​the side facing the water flow is small, which reduces the blocking effect of the grid plate 24 on the open channel water flow, reduces the impact on the water flow, and reduces the monitoring work of the open channel flow;

[0045] When the rotating belt 26 is away from the guide strip 27, the rotating belt 26 extends out from the annular groove 25, and the salvage rods 29 flip from the state of being close to each other to the state of being away from each other, that is, they are located on both sides of the rotating belt 26; as a result, the rotating belt 26 drives the salvage rods 29 into the water to pick up floating objects such as aquatic plants and garbage in the water, thereby improving the cleanliness of the open channel, reducing the impact on the ultrasonic transducer 1, and improving the working effect of the ultrasonic transducer 1, thereby improving the monitoring accuracy of the open channel flow; and, since the grid plate 24 is inclined, the salvage rods 29 pick up the floating objects obliquely upward and transport them to the cleaning box 3, thereby improving the salvage and cleaning effect and further improving the cleanliness of the open channel;

[0046] When the rotating belt 26 moves to the guide bar 27, the guide bar 27 guides the rotating belt 26 into the annular groove 25 through the guide groove 28. At this time, the rotating belt 26 moves in the annular groove 25, and the salvage rod 29 is squeezed by the inner walls on both sides of the annular groove 25, so that the salvage rod 29 flips and approaches each other until the part of the salvage rod 29 close to the rotating belt 26 enters the annular groove 25. At this time, the salvage rods 29 approaching each other clamp and fix the floating objects, increase the stability of the floating objects during the salvage and transportation process, prevent them from falling into the open channel, improve the salvage efficiency, thereby improving the cleanliness in the open channel, and further improve the monitoring accuracy of the open channel flow;

[0047] When the rotating belt 26 moves through the cleaning groove 31, the rotating belt 26 moves away from the guide bar 27, and the guide bar 27 no longer has a guiding effect on the rotating belt 26. When the rotating belt 26 extends out of the annular groove 25, the salvage rods 29 flip and move away from each other, loosening the clamped floating objects and causing the floating objects to fall into the cleaning box 3; and when the rotating belt 26 and the salvage rods 29 move, the cleaning rods 32 are located between adjacent salvage rods 29 to scrape off the floating objects or water plants on the salvage rods 29 and the rotating belt 26; and when the salvage rod 29 moves away from the cleaning box 3 through the cleaning groove 31, the inner wall of the cleaning groove 31 scrapes the surface of the salvage rod 29 again to remove the remaining water plants wrapped around the salvage rod 29. Through multiple cleaning methods, the salvaged floating objects are removed, the cleanliness of the salvage components is improved, and the residual floating objects are prevented from being mixed into the open channel again, thereby improving the salvage efficiency, thereby improving the cleanliness in the open channel, and further improving the monitoring accuracy of the open channel flow;

[0048] Since the cleaning rod 32 is inclined, when the cleaning rod 32 scrapes off the floating objects, the floating objects will fall obliquely downward along the cleaning rod 32 to the bottom of the cleaning box 3, preventing the floating objects from falling onto the salvage rod 29 that has been cleaned and causing secondary pollution; the floating objects in the cleaning box 3 roll along the inclined bottom surface to the bank of the open channel, completing the automatic collection of the floating objects and improving the convenience of use.

[0049] Embodiment 2:

[0050] On the basis of the first embodiment, a driving bar 33 is provided at a portion of the grille plate 24 close to and submerged in the water, and the driving bar 33 is arc-shaped, and both ends of the grille plate 24 are arc-shaped; a sleeve 34 is rotatably connected to the salvage rod 29, and when the sleeve 34 is close to the water surface, it is located between the driving bar 33 and the grille plate 24, and the driving bar 33 contacts the outer surface of the sleeve 34; circular holes 35 are evenly provided on the salvage rod 29, and balls 36 are provided in the circular holes 35, and a spring is provided between the balls 36 and the circular holes 35; recesses 37 are evenly provided in the sleeve 34, and a part of the balls 36 is located in the circular holes 35, and the other part is located in the recesses 37;

[0051] The surface of the sleeve 34 is evenly provided with receiving grooves 4, and a winding piece 41 is hinged in the receiving groove 4 through a torsion spring, and both sides of the winding piece 41 are closely attached to the inner wall of the receiving groove 4;

[0052] The winding sheet 41 is evenly provided with winding grooves 42 at the part close to the storage groove 4, and a winding strip 43 is provided at the middle position of the winding groove 42 through a torsion spring, and two winding strips 43 are provided in one winding groove 42, and the winding strip 43 is inclined; a second driving strip 44 is provided at the end of the grid plate 24 away from the water surface, and the second driving strip 44 passes through the cleaning groove 31; there are multiple cleaning rods 32 in the cleaning box 3, and when the sleeve 34 is located in the cleaning box 3, it moves through adjacent cleaning rods 32; a plurality of winding grooves 42 are provided on one winding sheet 41, so that the winding sheet 41 is comb-shaped; the second driving strip 44 is provided on the grid plate 24, and the second driving strip 44 is located on both sides of the rotating belt 26;

[0053] The bottom of the cleaning box 3 is rotatably connected to a conveyor belt 5, and vertical plates 51 are evenly arranged on the conveyor belt 5; both sides of the vertical plates 51 scrape the inner wall of the cleaning box 3, and the edge of the vertical plates 51 contacts the top of the sleeve 34;

[0054] Specific working process: during the rotation of the rotating belt 26, when conveying floating objects, the rotating belt 26 and the salvage rod 29 are located at the top of the grid plate 24; when preparing to salvage floating objects after cleaning, the rotating belt 26 and the salvage plate are located at the bottom of the grid plate 24; when the salvage rod 29 is close to the water surface, the salvage rod 29 is in a state of being away from each other and located on both sides of the rotating belt 26; with the movement of the rotating belt 26, the salvage rod 29 drives the sleeve 34 to enter between the No. 1 driving bar 33 and the grid plate 24, the No. 1 driving bar 33 is in close contact with the outer ring surface of the sleeve 34, and the salvage rod 29 drives the sleeve 34 to move At the same time, the first drive bar 33 drives the sleeve 34 to rotate through friction, so that the sleeve 34 can rotate to wrap the water grass on the surface when salvaging the water grass, thereby increasing the amount of water grass salvage. If a water grass is wrapped around two adjacent sleeves 34, the rotating sleeve 34 can pull the water grass apart by rotating, thereby preventing the adjacent sleeves 34 on the same side of the rotating belt 26 from being pulled by the water grass, causing the sleeve 34 to be blocked or stuck when turning over with the salvage rod 29, thereby improving the movement smoothness of the components during salvage, thereby improving the work effect and further improving the convenience of use.

[0055] After the sleeve 34 leaves the water surface, the sleeve 34 is away from the No. 1 driving bar 33, and the sleeve 34 is no longer affected by the No. 1 driving bar 33 to rotate, thereby preventing the salvaged floating objects from being affected by the continuously rotating sleeve 34; when the sleeve 34 rotates, the ball 36 extends into the round hole 35, so that the ball 36 passes over the recess 37; when the sleeve 34 does not contact the No. 1 driving bar 33, the sleeve 34 is fixed and does not rotate, and the ball 36 is affected by the spring to extend out of the round hole 35 and enter the recess 37, thereby achieving the purpose of fixing the sleeve 34, preventing the sleeve 34 from rotating freely when it is away from the No. 1 driving bar 33, causing the salvaged floating objects to be transported in an unstable state, thereby improving the salvage efficiency, thereby improving the cleanliness in the open channel, and further improving the monitoring accuracy of the open channel flow;

[0056] When the sleeve 34 is used for salvaging, the winding sheet 41 is not blocked and is turned out from the storage groove 4, so that a plurality of forks are formed on the surface of the sleeve 34, which is more conducive to the sleeve 34 winding around the water plants and improves the salvaging efficiency; because a plurality of winding grooves 42 are provided on a winding sheet 41, the winding sheet 41 is in a comb-tooth shape, and in the process of winding around the water plants, the water plants can be wound into the plurality of winding grooves 42, increasing the winding radius of the sleeve 34 when winding around the water plants, so that the sleeve 34 can salvage more water plants through the winding grooves 42;

[0057] When the winding sheet 41 flips out of the receiving groove 4, the two winding strips 43 in each winding groove 42 are affected by the torsion spring to swing away from each other, wrap around and grab the water plants, and further improve the salvage efficiency; when the winding sheet 41 is squeezed and flipped into the receiving groove 4, the two winding strips 43 in each winding groove 42 are squeezed by the inner wall of the receiving groove 4, swing towards each other and enter the winding groove 42, and cut the water plants, making it easier for the water plants to fall off the winding sheet 41, thereby improving the self-cleaning ability, thereby improving the cleaning effect, and then improving the cleanliness of the open channel, reducing the factors affecting the open channel flow monitoring;

[0058] When the sleeve 34 enters the cleaning box 3 after being salvaged, the sleeve 34 is still in a state of being close to each other. At this time, the sleeve 34 contacts the No. 2 driving bar 44 and rotates under the influence of friction, and the sleeve 34 moves between the adjacent cleaning rods 32, and the cleaning rod 32 scrapes off the floating objects clamped by the sleeve 34; and, the side of the adjacent cleaning rods 32 that is close to each other squeezes the winding sheet 41, so that the winding sheet 41 cuts off the water plants while entering the storage groove 4, and cooperates with the effect of the winding strip 43 cutting off the water plants and the cleaning effect of the cleaning rod 32 to scrape and clean, thereby improving the ability of the cleaning rod 32 to clean the sleeve 34, reducing the residue of floating objects on the sleeve 34, avoiding secondary pollution, and improving the cleaning effect, thereby improving the cleanliness of the open channel and reducing the factors affecting the open channel flow monitoring; after the sleeve 34 passes through the cleaning rod 32, it passes through the cleaning groove 31 again, and at this time, the cleaning groove 31 squeezes the winding sheet 41 again and scrapes the surface of the sleeve 34, achieving the effect of multiple cleaning, and further improving the cleaning effect;

[0059] By providing the conveyor belt 5, after the floating objects fall on the surface of the conveyor belt 5, the weight of the floating objects presses on the conveyor belt 5 and the vertical plate 51 to make them rotate around the cleaning box 3, and the floating objects are transported to the bank of the open channel; and, by providing the vertical plate 51, the edge of the vertical plate 51 contacts the top of the sleeve 34, and the sleeve 34 passes over the cleaning rod 32 and squeezes the vertical plate 51, squeezing it close to one side of the cleaning box 3, and the vertical plate 51 drives the conveyor belt 5 to rotate, thereby ensuring that the conveyor belt 5 can transport the floating objects to the bank of the open channel; in addition, the vertical plate 51 scrapes the inner wall of the cleaning box 3 on both sides during the movement, scrapes off the floating objects adhered to the inner wall of the cleaning box 3, improves the cleanliness of the cleaning box 3, and avoids the accumulation of too much floating objects in the cleaning box 3 due to adhesion, which affects the collection work and even causes the floating objects to overflow from the cleaning box 3 and fall into the open channel.

[0060] Embodiment three:

[0061] On the basis of the second embodiment, a support rod 52 is installed on one side of the grating plate 24, and a rotating wheel 53 is evenly connected to the support rod 52 for rotation, and the side of the support rod 52 away from the grating plate 24 is a cutting edge; two rotating wheels 53 are arranged on each support rod 52, and one of the rotating wheels 53 is close to the rotating belt 26; a toggle block 54 is evenly arranged on the side of the rotating wheel 53 close to the rotating belt 26, and the toggle block 54 is distributed centripetally; columns 55 are arranged on both sides of the open channel, and a pull rope 56 is arranged on the columns 55 and the rotating wheel 53, and the pull rope 56 is made of lightweight material; the pull rope 56 uses lightweight materials that can float on the water, such as plastic, etc.; the pull rope 56 passes between the two rotating wheels 53 on each support rod 52, and the two rotating wheels 53 on each support rod 52 squeeze the pull rope 56 against each other, thereby increasing the friction between the pull rope 56 and the rotating wheel 53;

[0062] A sleeve 57 is provided on the column 55, and the pull rope 56 passes through the sleeve 57. The sleeve 57 has a cutting edge at one end close to the open channel;

[0063] Specific working process: after the sleeve 34 moves away from the water surface, it flips to a vertical and mutually close state. When the top of the sleeve 34 passes the rotating wheel 53, it contacts and squeezes the toggle block 54, so that the toggle block 54 drives the rotating wheel 53 to rotate on the support rod 52; the rotating wheel 53 rotates with the pull rope 56 to move along the track surrounded by the column 55 and the support rod 52, that is, it circles around the column 55 and the support rod 52. The part of the pull rope 56 away from the support rod 52 floats on the water surface and moves toward the shore. At the same time, the green duckweed contacts the pull rope 56 and becomes entangled. The pull rope 56 moves to drag the green duckweed to the shore, reducing the working intensity of the salvage rod 29 and reducing the volume. The large green duckweed is pre-processed to improve the salvage efficiency, thereby improving the cleanliness in the open channel, and further improving the monitoring accuracy of the open channel flow; since the side of the support rod 52 away from the grid plate 24 is a cutting edge, when the sleeve 34 picks up the water grass and other debris and passes through the support rod 52, the cutting edge of the support rod 52 cuts off the water grass that may be connected between the two adjacent grid plates 24, avoiding that the parts on the two adjacent grid plates 24 are pulled up by the same piece of water grass, causing the work of the two adjacent grid plates 24 to be affected by the water grass, thereby improving the salvage effect of the parts while cutting off the water grass, so that the cleaning box 3 can more conveniently collect the cut water grass;

[0064] When the pull rope 56 moves, it passes through the center of the sleeve 57. The blade at one end of the sleeve 57 scrapes the pull rope 56 to remove the remaining algae entangled on the pull rope 56, so as to prevent the remaining algae from moving with the pull rope 56 and falling on the rotating belt 26 to cause pollution. The self-cleaning ability of the components is improved, thereby improving the cleanliness of the open channel and reducing the factors affecting the open channel flow monitoring.

[0065] Embodiment 4:

[0066] On the basis of the third embodiment, the main lifting rod 6 is evenly slidably connected to the side of the support frame 2 away from the grid plate 24, and the main lifting rod 6 is a hollow structure, and a secondary lifting rod 61 is slidably connected inside the main lifting rod 6; the secondary lifting rod 61 is located on both sides of the open channel, and an ultrasonic transducer 1 is installed at one end of the secondary lifting rod 61; a lifting device 62 is installed on the support frame 2, and the lifting device 62 is connected to the top of the main lifting rod 6; the lifting device 62 is a conventional electric lifting component, and the lifting device 62 is controlled by a water level gauge;

[0067] One end of the main lifting rod 6 is threadedly connected with a bolt 63, and the bolts 63 are symmetrically distributed up and down; the ends of the bolts 63 close to each other are rotatably connected with triangular blocks 64, and the triangular blocks 64 are right-angled triangles, the right-angled surface of the triangular block 64 contacts one end of the main lifting rod 6, and the sharp part of the triangular block 64 is inserted into the surface of the auxiliary lifting rod 61;

[0068] Specific work flow: When the water level in the open channel drops too low, the ultrasonic transducer 1 may be exposed to the air and unable to measure the flow rate; and, if the ultrasonic transducer 1 is exposed to the outside for a long time, it is easy to cause its failure and damage; when the water level in the open channel rises excessively, the ultrasonic transducer 1 is not in the specified position of the open channel water flow, resulting in the measured flow rate not being able to reflect the flow rate of the entire cross-section; therefore, the water level meter measures the open channel water depth data as a basis, and controls the rise and fall of the main lifting rod 6 and the auxiliary lifting rod 61 through the lifting device 62, driving the ultrasonic transducer 1 to rise and fall in the open channel water, so as to achieve the effect that the ultrasonic transducer 1 can change its position in real time according to the water level, so that the ultrasonic transducer 1 can be in a suitable measurement position when the open channel water level changes, thereby improving the monitoring accuracy;

[0069] In addition, the ultrasonic transducer 1 needs to be installed when there is no water in the channel. For some channels that cannot be shut down, the construction is difficult. Therefore, the position of the ultrasonic transducer 1 on both sides of the open channel is adjusted by moving the auxiliary lifting rod 61 to retract or extend the main lifting rod 6. After the adjustment, the lifting device 62 is started again, and the ultrasonic transducer 1 is driven into the water through the main lifting rod 6 and the auxiliary lifting rod 61, which is convenient for the staff to replace or repair the ultrasonic transducer 1 and improves the convenience of use. Moreover, after the position adjustment of the ultrasonic transducer 1 is completed, the bolt 63 is rotated so that the bolt 63 is continuously screwed into the main lifting rod 6. In the lifting rod 6, the continuously extended bolts 63 drive the triangular blocks 64 to approach each other, clamping and fixing the auxiliary lifting rod 61, avoiding the scouring of water flow in the open channel, causing the auxiliary lifting rod 61 to move, causing the position of the ultrasonic transducer 1 to change, and improving the stability of the monitoring position of the ultrasonic transducer 1, thereby improving the monitoring accuracy; in addition, the sharp part of the triangular block 64 is inserted into the surface of the auxiliary lifting rod 61, so that the auxiliary lifting rod 61 is not restricted by the clamping position, and the position can be moved at will by inserting the triangular block 64 into the surface of the auxiliary lifting rod 61, so that the auxiliary lifting rod 61 is clamped and fixed, which improves the convenience of use and thus improves practicality.

[0070] Embodiment five:

[0071] A control system suitable for the above-mentioned open channel flow intelligent monitoring device, the control system comprising:

[0072] The flow velocity detection unit uses an ultrasonic transducer 1 to measure the flow velocity of the water flow section and generates data to be sent to the host;

[0073] The water level detection unit uses a water level gauge to measure the real-time water level of the open channel and sends the data to the host;

[0074] The open channel cleaning unit uses monitoring equipment to salvage garbage from the open channel, thus realizing the normal operation of the flow rate detection unit;

[0075] The CNC center uses the host computer to calculate the water flow rate through the open channel width, flow velocity and water level, and compares it with previous data, and sends and displays the final comparison results.

Claims

1. An open channel flow intelligent monitoring device, comprising an ultrasonic transducer (1), a water level meter and a host, wherein the ultrasonic transducer (1) is used to measure the flow velocity of a water flow section, the water level meter is used to measure the water level, and the host is used to control and analyze the open channel flow; characterized in that: Also includes: A support frame (2), the support frame (2) is installed on the bank of the open channel, and the middle position of the support frame (2) is located above the water flow in the open channel; A rotating shaft (21) is rotatably connected to the support frame (2), a rotating disk (22) is evenly fixedly connected to the rotating shaft (21), a motor (23) is installed on one side of the support frame (2), and one end of the rotating shaft (21) is connected to the motor (23); a grid plate (24) is evenly installed on one side of the support frame (2), and the grid plate (24) is inclined and extends into the open channel; an annular groove (25) is formed on the grid plate (24), and a rotating belt (26) is sleeved in the annular groove (25) and on the rotating disk (22); Guide strips (27) are provided on the inner walls of both sides of the annular groove (25), and the guide strips (27) are away from the water surface and the inside of the grid plate (24); guide grooves (28) are provided on both sides of the rotating belt (26), and the guide strips (27) are located in the guide grooves (28); salvage rods (29) are hingedly connected to both sides of the rotating belt (26) through torsion springs, and the salvage rods (29) symmetrically disposed on both sides of the rotating belt (26) form a group, and a plurality of groups of salvage rods (29) are provided on the rotating belt (26); A dirt cleaning box (3), the dirt cleaning box (3) is arranged on the support frame (2), and the bottom of the dirt cleaning box (3) is arranged at an angle; a dirt cleaning groove (31) is evenly opened on one side of the dirt cleaning box (3), and the rotating disk (22) and the rotating belt (26) extend into the dirt cleaning groove (31); a dirt cleaning rod (32) is arranged in the dirt cleaning box (3), and the dirt cleaning rod (32) is located between adjacent salvage rods (29), and the dirt cleaning rod (32) is arranged at an angle; A driving bar (33) is provided at a position of the grille plate (24) close to and submerged in the water, and the driving bar (33) is arc-shaped, and both ends of the grille plate (24) are arc-shaped; a sleeve (34) is rotatably connected to the salvage rod (29), and when the sleeve (34) is close to the water surface, it is located between the driving bar (33) and the grille plate (24), and the driving bar (33) contacts the outer surface of the sleeve (34); circular holes (35) are evenly provided on the salvage rod (29), and balls (36) are provided in the circular holes (35), and a spring is provided between the balls (36) and the circular holes (35); depressions (37) are evenly provided in the sleeve (34), and a part of the balls (36) is located in the circular holes (35), and another part is located in the depressions (37); The surface of the sleeve (34) is evenly provided with receiving grooves (4), and a winding sheet (41) is hinged in the receiving groove (4) through a torsion spring, and both sides of the winding sheet (41) are closely attached to the inner wall of the receiving groove (4); a winding groove (42) is evenly provided in the portion of the winding sheet (41) close to the receiving groove (4), and a winding strip (43) is provided in the middle of the winding groove (42) through a torsion spring, and two winding strips (43) are provided in one winding groove (42) at the top and the bottom, and the winding strip (43) is arranged obliquely.

2. An open channel flow intelligent monitoring device according to claim 1, characterized in that: A second driving bar (44) is provided at one end of the grid plate (24) away from the water surface, and the second driving bar (44) passes through the cleaning groove (31); a plurality of cleaning rods (32) are provided in the cleaning box (3), and when the sleeve (34) is located in the cleaning box (3), it moves through adjacent cleaning rods (32).

3. An open channel flow intelligent monitoring device according to claim 1, characterized in that: The bottom of the cleaning box (3) is rotatably connected to a conveyor belt (5), and vertical plates (51) are evenly arranged on the conveyor belt (5); the vertical plates (51) are perpendicular to the surface of the conveyor belt (5), and the edge of the vertical plates (51) contacts the top of the sleeve (34).

4. An open channel flow intelligent monitoring device according to claim 1, characterized in that: A support rod (52) is installed on one side of the grating plate (24), and a rotating wheel (53) is evenly connected to the support rod (52) for rotation, and the side of the support rod (52) away from the grating plate (24) is a cutting edge; two rotating wheels (53) are arranged on each support rod (52), and one of the rotating wheels (53) is close to the rotating belt (26); a toggle block (54) is evenly arranged on the side of the rotating wheel (53) close to the rotating belt (26), and the toggle blocks (54) are distributed centripetally; columns (55) are arranged on both sides of the open channel, and pull ropes (56) are arranged on the columns (55) and the rotating wheel (53), and the pull ropes (56) are made of light material.

5. An open channel flow intelligent monitoring device according to claim 4, characterized in that: A sleeve (57) is provided on the column (55), and the pull rope (56) passes through the sleeve (57). An end of the sleeve (57) close to the open channel is provided with a cutting edge.

6. An open channel flow intelligent monitoring device according to claim 1, characterized in that: A main lifting rod (6) is evenly slidably connected to the side of the support frame (2) away from the grid plate (24), and the main lifting rod (6) is a hollow structure. A secondary lifting rod (61) is slidably connected inside the main lifting rod (6); the secondary lifting rod (61) is located on both sides of the open channel, and an ultrasonic transducer (1) is installed at one end of the secondary lifting rod (61); a lifting device (62) is installed on the support frame (2), and the lifting device (62) is connected to the top of the main lifting rod (6).

7. An open channel flow intelligent monitoring device according to claim 6, characterized in that: One end of the main lifting rod (6) is threadedly connected with a bolt (63), and the bolts (63) are symmetrically distributed up and down; the ends of the bolts (63) close to each other are rotatably connected with triangular blocks (64), and the triangular blocks (64) are right-angled triangles, the right-angled surface of the triangular block (64) contacts one end of the main lifting rod (6), and the sharp part of the triangular block (64) is inserted into the surface of the auxiliary lifting rod (61).

8. A control system applicable to the open channel flow intelligent monitoring device according to any one of claims 1 to 7, characterized in that: The control system includes: A flow velocity detection unit, wherein the flow velocity detection unit uses an ultrasonic transducer (1) to measure the flow velocity of a water flow section and generates data to be sent to a host computer; The water level detection unit uses a water level gauge to measure the real-time water level of the open channel and sends the data to the host; The open channel cleaning unit uses monitoring equipment to salvage garbage from the open channel, thus realizing the normal operation function of the flow rate detection unit; The CNC center uses the host computer to calculate the water flow rate through the open channel width, flow velocity and water level, and compares it with previous data, and sends and displays the final comparison results.

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