Rectangular channel rotary water gate integrated flow control device

Abstract

The utility model discloses a rectangular channel rotating type water gate integrated flow control equipment belongs to water conservancy project and channel water supply field. The equipment includes water channel, gate body, rotation adjusting mechanism, worm turbine transmission pair, driving motor, clutch, rocking handle, flowmeter and control cabinet. Gate body rotation adjusts water section, improves the defect that high lift type gate turbulence is big, and water head loss is high. Worm turbine transmission realizes big torque low -speed opening and closing, and clutch and rocking handle guarantee manual operation under power failure or trouble. Control cabinet combines flow and water level detection, can execute constant flow, proportional flow distribution, preferential channel, seasonal time period, low -power consumption and flush sand and other modes, forms closed -loop regulation. The slot and the separation board can direct sand. Modular structure, easy to install and maintain. The utility model has intelligent control and emergency redundancy, is applicable to farmland irrigation, municipal channel and multi -branch water delivery, solves the problem that existing water gate regulation is not flexible, maintenance is difficult and adaptability is poor.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, specifically to an integrated flow control device for a rectangular channel rotating sluice gate. Background Technology

[0002] Currently, traditional sluice gate structures are still widely used in irrigation areas and farmland canals, such as vertical lift gates, flap gates, flat sliding gates, and some arc-shaped or steel structure gates. These devices mostly rely on the vertical lifting or sliding of the gate plate to control the water flow cross-section. Although they are relatively simple to construct and widely used, they generally have the following problems in actual operation: First, the adjustment method is crude, with opening and closing mostly in an on / off state, making it difficult to flexibly switch between multiple branches and accurately distribute water; second, the hydraulic conditions are not ideal, and turbulence and scouring are easily formed during the opening and closing of the gate, causing head loss and instability in the downstream channel; third, the degree of automation is limited, often relying on manual or simple electric winches for opening and closing, lacking linkage with flow meters and sensors, and unable to achieve real-time control; fourth, the structure is not modular, and once modification or maintenance is needed, it often requires overall disassembly and reassembly, resulting in high construction and operation and maintenance costs; fifth, in remote areas without electricity or in case of sudden working conditions, there is often a lack of effective redundancy and emergency measures, making it difficult to ensure a continuous and stable water supply.

[0003] In view of the above problems, an integrated flow control device for a rectangular channel rotary sluice gate is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated flow control device for a rectangular channel rotating sluice gate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rectangular channel rotating sluice gate integrated flow control device, including a water channel, a rotatable gate installed inside the water channel, an adjustment mechanism for driving the gate to rotate installed on the top of the gate, a clutch installed at the top of the adjustment mechanism, the water channel being embedded and buried in the ground, an open channel box-type flow meter inside the water channel, and an equipment cabinet installed above the ground, the equipment cabinet being used to read the data from the open channel box-type flow meter, and after calculation, drive and control the adjustment mechanism; The water channel includes a gate frame, and a waterway is provided on the outside of the gate frame; The gate includes a gate body, and the side wall of the gate body has an opening; The adjustment mechanism includes a base, a motor is arranged on the top of the base, the motor drives the gate body to rotate through a gear assembly, the output end of the motor is coaxially arranged with the transmission shaft of the gear assembly, and a clutch tube is slidably assembled on the output end of the motor. A housing is assembled on the top of the base, and a clutch is slidably assembled on the top of the housing. The clutch includes a lever, the bottom end of which is rotatably mounted on the outside of the clutch tube, and the top end of which extends to the outside of the housing. The clutch and the clutch tube are connected or disconnected from the power between the output end of the motor and the transmission shaft through sliding displacement. The other end of the input shaft of the gear assembly is provided with a detachable crank handle.

[0006] Preferably, the gate frame has a gate slot inside, a gate opening is provided on the outside of the gate slot, and a drop groove is provided at the bottom of the gate frame. The gate slot and the drop groove are sealed around the outer wall of the gate body, and the bottom surface of the opening is flush with the top surface of the drop groove.

[0007] Preferably, the waterway is provided with a slot at the connection with the gate frame, and a separation plate is slidably fitted inside the slot.

[0008] Preferably, bolts are embedded in the top periphery of the gate frame, the bolts pass through the base and the outer shell to fix the base and the outer shell, and a connecting shaft is assembled at the top of the gate body, the connecting shaft passes through the base and is fixed relative to the output end of the gear assembly.

[0009] Preferably, the gear assembly includes a worm gear and a worm shaft gear that mesh with each other, the worm shaft gear is fixed relative to the connecting shaft, the transmission shaft is disposed through the axis of the worm gear, and the gear assembly is fixed to the top of the base by a transmission seat.

[0010] Preferably, a retaining ring is provided on the outside of the clutch tube, and a round nut is screwed onto the outside of the retaining ring. The round nut and the retaining ring are located on the outside of the lever, and a sliding groove is provided at the top of the outer casing.

[0011] Preferably, a sliding member is sleeved on the outside of the lever, and a slider is provided at the bottom end of the sliding member. The slider is sleeved inside the groove. A second sliding member is fixedly assembled at the bottom end of the sliding member. A locking plate is provided on the top of the housing. The clutch tube is locked to rotate between the output end of the motor or the transmission shaft.

[0012] Preferably, the inner wall of the clutch tube is fixed with a key bar, and the output end of the motor and the outer side of the transmission shaft are provided with keyways of the same size.

[0013] Preferably, the top end of the lever is hinged to a hinge joint, the bottom end of the hinge joint is screwed with a locking bolt, the top of the housing is fixed with a locking plate, and at least one locking hole is provided on the outer side of the locking plate. When the locking bolt passes through the locking hole, the clutch and clutch tube are in the connection state between the output end of the motor and the transmission shaft.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: The rectangular channel rotary sluice gate integrated flow control device of this utility model adopts a modular structure. The water channel, gate, regulating mechanism, clutch, flow meter, and equipment cabinet can all be independently assembled and replaced, which is highly versatile and easy to maintain. The gate body and rotating mechanism are integrated, which can realize two-way or three-way multiple flow path switching; the slot and separation plate form a sedimentation buffer zone, which can intercept and discharge sediment online in a directional manner. The regulating mechanism adopts motor-worm gear transmission, combined with the redundant operation of clutch and crank, to ensure reliable opening and closing even in the event of power failure or failure.

[0015] In terms of control, the system is based on real-time acquisition of flow and water level data, combined with angle-flow curves, and supports constant flow, proportional diversion, priority channel, seasonal time period, low power consumption, and sand flushing and discharging modes to form a closed-loop regulation, ensuring precise water distribution and flexible switching. Powered by a turbine and energy panel, it can operate for extended periods in environments without electricity. In summary, it solves the problems of inflexible sluice gate switching, difficulty in clearing silt, reliance on power supply, and lack of emergency response in existing channels. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an assembly diagram of the present invention; Figure 3 for Figure 2 Enlarged view of point a in the middle; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0017] Figure 5 This is a schematic diagram of the combined state of the adjustment mechanism and water channel of this utility model.

[0018] Figure 6 This is a schematic diagram of the water channel and regulating mechanism of this utility model.

[0019] Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point b.

[0020] Figure 8 This is a schematic diagram of the clutch explosion of this utility model.

[0021] Figure 9 for Figure 7 Enlarged schematic diagram of the structure at point c.

[0022] In the diagram: 1. Water channel, 11. Gate frame, 12. Gate slot, 13. Gate opening, 14. Waterway, 15. Slot, 16. Separator plate, 17. Bolt, 18. Drop chute, 2. Gate, 21. Gate body, 22. Through port, 23. Connecting shaft, 3. Adjusting mechanism, 31. Base, 32. Housing, 33. Slide groove, 34. Transmission seat, 35. Motor, 36. Worm gear, 37. Worm gear, 38. Clutch pipe, 39. Retaining ring, 310. Round nut, 311. Key bar, 312. Handle, 4. Clutch, 41. Lever, 42. Sliding part one, 43. Hinge joint, 44. Locking bolt, 45. Locking plate, 46. Sliding part two, 5. Ground, 6. Equipment cabinet, 7. Energy plate, 8. Open channel box flow meter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-9 This utility model provides a technical solution: a rectangular channel rotating sluice gate integrated flow control device, including a water channel 1, a rotatable gate 2 installed inside the water channel 1, an adjustment mechanism 3 for driving the gate 2 to rotate installed on the top of the gate 2, a clutch 4 installed at the top of the adjustment mechanism 3, the water channel 1 is embedded and buried in the ground 5, the water channel 1 has an open channel box flow meter 8 inside the box, and an equipment cabinet 6 is set above the ground. The equipment cabinet 6 is used to read the data of the open channel box flow meter 8, and after calculation, drive and control the adjustment mechanism 3. The water channel 1 includes a gate frame 11, and a waterway 14 is provided on the outside of the gate frame 11; The gate 2 includes a gate body 21, and the side wall of the gate body 21 has an opening 22; The adjustment mechanism 3 includes a base 31, a motor 35 is arranged above the base 31, the motor 35 drives the gate body 21 to rotate through the gear assembly, the output end of the motor 35 is coaxially arranged with the transmission shaft of the gear assembly, and a clutch tube 38 is slidably assembled at the output end of the motor 35. A housing 32 is assembled on the top of the base 31, and a clutch 4 is slidably assembled on the top of the housing 32. The clutch 4 includes a lever 41, the bottom end of which is rotatably mounted on the outside of the clutch tube 38, and the top end of which extends to the outside of the housing 31. The clutch 4 and the clutch tube 38 are connected or disconnected from the power between the output end of the motor 35 and the transmission shaft through sliding displacement. The other end of the input shaft of the gear assembly is provided with a detachable crank handle 312.

[0025] In practical implementation, the water channel 1 is a rectangular concrete channel structure, with its lower part entirely embedded in the ground 5 to ensure compatibility between the equipment and the existing irrigation and drainage channels. The water channel 1 contains a gate frame 11, which is a welded structure made of reinforced concrete or high-strength steel plates, capable of withstanding long-term water pressure impact. The two sides of the gate frame 11 are connected to the waterway 14, allowing the overall structure to form a stable connection with multiple branch water flows. During the installation of the frame, horizontal and vertical alignment must be maintained to ensure the sealing and connection accuracy of the gate 2 during rotation.

[0026] The gate 2 is composed of a gate body 21, preferably with a T-shaped cross-section structure. Its characteristic feature is that it forms a three-way connection with two transverse branches through a longitudinal opening 22. The outer wall of the gate body 21 is coated with a wear-resistant epoxy coating, and sealing gaskets are embedded at the edges, thus effectively blocking or guiding the water flow when rotated to the correct position. By adjusting the angle of the gate body 21, different water flow combinations can be formed: a straight flow is achieved when the opening 22 is directly aligned with the upstream and downstream channels; connection between any two branches is achieved when rotated to an offset angle; and full three-way connection is achieved when rotated to the center angle. The rotation angle of the gate body is typically limited to between 0° and 90°, and the stroke is controlled by limit blocks.

[0027] The regulating mechanism 3 is installed above the gate body 21 and includes a base 31, a housing 32, a motor 35, a clutch tube 38, and a gear assembly. The motor 35 is fixed above the base 31 and is driven by a worm gear 37 and a worm wheel gear 36, achieving a stable output of high torque and small angle, and has a static self-locking effect, ensuring the gate can rotate smoothly even under water flow impact. The output end of the motor 35 is coaxially connected to the transmission shaft, which is fixed to the connecting shaft 23, causing the gate body 21 to rotate accordingly. The base 31 and housing 32 are fixed to the top of the gate frame 11 by bolts 17, forming an integral sealed cavity to prevent rainwater or sediment from entering the gear mechanism.

[0028] A clutch 4 is installed on the upper part of the adjusting mechanism 3, and its core component is a lever 41. When the equipment is in electric mode, the clutch 4 is engaged with the output end of the motor 35, and the motor torque is transmitted to the transmission shaft through the clutch tube 38, thereby driving the gate body 21 to rotate. When the equipment requires manual operation or is in a power outage state, the operator can push the lever 41 to disengage the clutch tube 38 from the motor output. At this time, the gear assembly can be directly driven by the crank handle 312 to achieve manual control. To prevent misoperation, the clutch housing is provided with a sliding groove 33 and a locking plate 45. The lever action must cooperate with the locking bolt 44 to complete the power switching.

[0029] An equipment cabinet 6 is installed above ground level 5, housing a control unit, power module, and signal acquisition system. An open channel box-type flow meter 8, pre-embedded in the water channel 1, directly contacts the water flow, monitoring flow rate and water level in real time and transmitting the data to the equipment cabinet 6. The controller inside the equipment cabinet 6, based on the collected water level and flow information and a preset scheduling strategy, outputs drive signals to the motor 35, achieving closed-loop control of the gate 2 and ensuring dynamic balance of flow in each branch.

[0030] This utility model provides an integrated flow control device for rectangular channel rotary sluice gates. Adopting a modular design, it separates the channel, gate, regulating mechanism, clutch, flow meter, and equipment cabinet. This allows for versatility across different channel specifications, facilitating independent assembly and quick replacement. The overall structure is compact and easy to maintain. The integrated gate body and rotary regulating mechanism allow for multiple flow path options across multiple branches, supporting switching between any two-way or three-way connections. Combined with a slot and separation plate structure, a sedimentation buffer zone is established on the valve side, enabling online interception and directional flushing of sediment, ensuring valve sealing and flexible opening and closing. The regulating mechanism uses a motor-worm gear drive to achieve high torque, low-speed stable rotation. Combined with a redundant clutch and crank handle structure, it ensures manual control even in power outages or malfunctions, improving system safety and reliability.

[0031] In terms of control methods, the system is based on real-time data acquisition from open channel flow meters and level sensors, combined with angle-flow calibration curves. It can implement various control strategies such as constant flow, proportional diversion, priority channel, seasonal water supply, low-power operation, and sand flushing and removal, forming a closed-loop regulation logic of "feedforward + feedback." This ensures precise water distribution and allows for automatic switching of operating modes based on environmental conditions and demand. Combined with a self-powered solution for the energy panel and turbine, the equipment has the capability for long-term stable operation in remote, unpowered areas.

[0032] Therefore, this utility model achieves modularity and versatility in structure, multi-mode intelligent control of water flow in function, and simplification and ease of maintenance in operation and maintenance. It solves the problems of inflexible switching of multiple branches of channel sluice gates, difficulty in cleaning valve position siltation, reliance on external power supply and lack of emergency redundancy in the existing technology.

[0033] Specifically, the gate frame 11 has a gate slot 12 inside, a gate opening 13 outside the gate slot 12, and a drop groove 18 at the bottom of the gate frame 11. The gate slot 12 and the drop groove 18 are sealed around the outer wall of the gate body 21, and the bottom surface of the opening 22 is flush with the top surface of the drop groove 18.

[0034] A gate slot 12 is provided inside the gate frame 11. The gate slot 12 is used to limit and seal the gate body 21, ensuring its stability during rotation. The outer side of the gate slot 12 is connected to the gate opening 13, which serves as the main channel for water flow in and out of the gate. The width of the gate opening 13 is adapted to the opening size of the gate body 22. A drop groove 18 is provided at the bottom of the gate frame 11. The drop groove 18 and the gate slot 12 together wrap around the outer wall of the gate body 21, forming a three-dimensional sealed space to ensure that there is no leakage when it is rotated into place. The bottom surface of the gate body 22 is flush with the top surface of the drop groove 18, thus forming a smooth transition, preventing the accumulation of silt at the bottom, and further improving the sealing effect and the smoothness of opening and closing.

[0035] Specifically, a slot 15 is provided at the connection between the waterway 14 and the gate frame 11, and a separation plate 16 is slidably fitted inside the slot 15.

[0036] In its most basic implementation, the separation plate 16 is manually driven: when the sediment on the valve side reaches the threshold, the operator can issue a stop or flushing command through the equipment cabinet, then manually pull out the separation plate 16 and adjust its direction. Using the head difference, the sediment is directionally flushed to the target waterway, and the separation plate is reset after the dredging is completed. This method is simple in structure, easy to maintain, and suitable for most scenarios.

[0037] In other implementations, the separation plate 16 can also be configured with a mechanical or electric drive unit, and visual, distance, light, and weight sensor modules can be added to the outer side near the separation plate 16 to monitor the sediment accumulation. Combined with mechanical drive, automatic sediment removal can be achieved, including but not limited to the following methods: Slide bar / lead screw drive: The lead screw is driven by a motor or handwheel to make the separator plate slide in the slot, realizing automatic extraction and reset; Hydraulic / pneumatic cylinder drive: A small cylinder is installed at one end of the slot to provide reciprocating thrust to complete the pulling out and insertion of the separator plate; Remote electric control drive: A push-pull mechanism is installed at the end of the separation plate and linked with the equipment cabinet for remote operation, reducing manual intervention.

[0038] The above-mentioned different driving methods can all independently realize the extraction, guidance and reset operations of the separation plate 16. Their common purpose is to ensure that the sediment is discharged in a directional manner without stopping the water supply, thereby improving the adaptability and maintenance convenience of the sluice gate device.

[0039] A slot 15 is provided at the connection between the waterway 14 and the gate frame 11. The slot 15 is a strip-shaped channel structure, inside which a separation plate 16 can be slidably installed. During normal operation, the separation plate 16 is inserted into the slot, forming a local sedimentation buffer zone with the gate frame, reducing the direct impact of sediment carried by the water flow on the gate groove 12 and the sealing surface. When the sedimentation volume increases, the operator can pull out the separation plate 16 and change its orientation, using the water level difference to direct the sediment to a designated channel. The separation plate 16 can be made of stainless steel or engineering plastic, which is lightweight, high-strength, and easy to operate quickly manually, avoiding large-scale water outages for maintenance. Specifically, bolts 17 are embedded on the top periphery of the gate frame 11. The bolts 17 pass through the base 31 and the outer shell 32 to fix the base 31 and the outer shell 32. A connecting shaft 23 is assembled at the top of the gate body 21. The connecting shaft 23 passes through the base 31 and is fixed relative to the output end of the gear assembly.

[0040] Bolts 17 are embedded in the top periphery of the gate frame 11, passing through the base 31 and the outer casing 32, to reliably fix the adjusting mechanism 3 to the gate frame. A connecting shaft 23 is mounted on the top of the gate body 21, passing vertically through the base 31 and fixed to the output end of the gear assembly, allowing the torque of the motor 35 to directly act on the gate body 21. The surface of the connecting shaft 23 is treated with anti-corrosion coating and used with a sealing ring to ensure good transmission accuracy and lifespan even after long-term immersion in water or in humid environments.

[0041] Specifically, the gear assembly includes a worm gear 36 and a worm shaft gear 37 that mesh with each other. The worm gear 36 is fixed relative to the connecting shaft 23. The transmission shaft is disposed through the axis of the worm gear 37. The gear assembly is fixed to the top of the base 31 by the transmission seat 35.

[0042] The gear assembly consists of a worm gear 36 and a worm shaft 37 meshing together. The worm gear 36 is fixed to the connecting shaft 23, and the worm shaft 37 is connected to the output shaft of the motor 35. Both are mounted on top of the base 31 via a transmission seat 34. This structure has a self-locking characteristic, meaning that when the motor stops outputting, the gate body 21 will not rotate in the opposite direction due to water flow impact, effectively ensuring the stability of the gate angle. When the worm and worm gear mesh, the transmission ratio is large, enabling high torque output in a small volume, which is very suitable for the gate opening and closing requirements under channel water flow conditions.

[0043] Specifically, a retaining ring 39 is provided on the outside of the clutch tube 38, and a round nut 310 is screwed onto the outside of the retaining ring 39. The round nut 310 and the retaining ring 39 are located on the outside of the lever 41, and a sliding groove 33 is provided at the top of the outer casing 32.

[0044] A clutch tube 38 is sleeved outside the output end of the motor 35. A retaining ring 39 is provided outside the clutch tube, and a round nut 310 is screwed onto the outside of the retaining ring 39. The cooperation between the retaining ring 39 and the round nut 310 ensures that the clutch tube 38 can maintain a stable position in the axial direction, while allowing the lever 41 to drive the clutch tube to produce sliding displacement when needed. Through this structural design, the motor and the drive shaft can be quickly decoupled or engaged, thereby completing the switching between electric and manual operation modes.

[0045] Specifically, a sliding member 41 is sleeved on the outside of the lever 41, and a slider is provided at the bottom end of the sliding member 41. The slider is sleeved inside the slide groove 33. A sliding member 46 is fixedly assembled at the bottom end of the sliding member 41. A locking plate 45 is provided on the top of the housing 31. The clutch tube 38 is locked to rotate between the output end of the motor 35 or the transmission shaft.

[0046] The bottom end of the lever 41 is connected to the clutch tube 38, and its top extends to the outside of the housing 32. A sliding member is sleeved on the outside of the lever, and the bottom end has a slider. The slider is inserted into the groove 33 on the top of the housing to achieve linear guided movement. A locking plate 45 is also provided on the top of the housing. The locking plate has multiple locking holes. When the operator fixes the position of the lever with the hinge joint 43 and the locking bolt 44, the clutch 4 can be held in a certain state to achieve stable power transmission or disengagement. This design ensures the safety of operation and avoids accidental changes in the clutch state due to water flow impact or external vibration.

[0047] Specifically, a key bar 311 is fixed to the inner wall of the clutch tube 38, and keyways of the same size are provided on the output end of the motor 35 and the outer side of the transmission shaft.

[0048] A key bar 311 is fixed to the inner wall of the clutch tube 38, and matching keyways are provided on the output end of the motor 35 and the outer side of the transmission shaft. The interlocking connection between the key bar and the keyway ensures efficient torque transmission during power transmission while preventing slippage. The cooperation between the key bar 311 and the keyway also allows the clutch tube to slide axially, thus switching between power engagement and disengagement. This design ensures both the stability of the transmission process and provides flexible operability, making it suitable for the reliability requirements of long-term operation of hydraulic equipment.

[0049] Specifically, the top of the lever 41 is hinged to a hinge joint 43, the bottom of the hinge joint 43 is screwed with a locking bolt 44, the top of the housing 31 is fixed with a locking plate 45, and the outer side of the locking plate 45 is provided with at least one locking hole. When the locking bolt 44 passes through the locking hole, the clutch 44 and the clutch tube 38 are in the connection state between the output end of the motor 35 and the transmission shaft.

[0050] A key bar 311 is fixed to the inner wall of the clutch tube 38, and matching keyways are provided on the output end of the motor 35 and the outer side of the transmission shaft. The interlocking connection between the key bar and the keyway ensures efficient torque transmission during power transmission while preventing slippage. The cooperation between the key bar 311 and the keyway also allows the clutch tube to slide axially, thus switching between power engagement and disengagement. This design ensures both the stability of the transmission process and provides flexible operability, making it suitable for the reliability requirements of long-term operation of hydraulic equipment.

[0051] A hinge joint 43 is hinged to the top of the lever 41, and a locking bolt 44 is screwed to the bottom of the hinge joint 43. The locking bolt 44 can be inserted into the locking hole on the locking plate 45 on the top of the housing. When the locking bolt is tightened, the lever 41 can be fixed in a specific position, so that the clutch tube 38 is reliably connected or disconnected from the output end of the motor 35 or the transmission shaft. The advantage of this structure is that it can quickly switch the operating mode on site, and the mechanical locking method avoids loosening and misoperation, improving the safety of the equipment under harsh working conditions.

[0052] A crank handle 312 is detachably mounted on one end of the input shaft of the gear assembly. Under normal circumstances, the motor 35 drives the worm gear 37 to rotate, which in turn drives the worm gear 36 and the connecting shaft 23 to rotate the gate body. When the motor fails or a power outage occurs, the operator decouples the motor output end using the clutch 4, then inserts and fixes the crank handle 312 to the end of the input shaft. Manually rotating the crank handle drives the gear assembly, thereby enabling manual opening and closing of the gate. The crank handle 312 is generally designed to be foldable or detachable and is stored in the equipment cabinet 6 for easy access. Its handle can be rubber-coated or have an anti-slip texture to ensure stable force application even in humid environments.

[0053] Energy panels 7, preferably solar panels, can be installed near the equipment cabinet 6 or the channel to provide power to the system in conjunction with the channel turbine. Energy panels 7 are connected to the control unit via a power management module, prioritizing power to the flow meter, sensors, and controller, while excess power is stored in a battery module. This combination of hydropower and solar power significantly reduces dependence on external power, enabling the equipment to operate independently for extended periods in remote, unpowered areas.

[0054] The entire device was designed with long-term operation and maintenance in mind. Metal components such as the connecting shaft 23 and the worm gear 36 underwent heat treatment and anti-corrosion coating to improve wear resistance and corrosion resistance. Sealing components such as the gate slot 12 and the drop chute 18 have aging-resistant rubber rings embedded at their contact surfaces to ensure good sealing even under long-term water and sediment erosion. The connection between the separator plate 16 and the slot 15 uses a quick-release structure, facilitating periodic cleaning or replacement by operators. The electronic modules inside the equipment cabinet 6 are equipped with waterproof and dustproof shells, and the overall protection level is enhanced by sealing strips. Through these measures, the equipment can maintain stable operation in the field for extended periods, reducing maintenance frequency.

[0055] A sliding element 1 is sleeved on the outside of the lever 41. The bottom end of the sliding element 1 extends downward to form a slider, which is inserted into the groove 33 at the top of the housing 32. The groove 33 acts as a linear guide, keeping the movement trajectory of the lever 41 vertical and preventing jamming caused by lateral deviation. A sliding element 2 is fixedly mounted at the bottom end of the sliding element 1. A sliding sealing ring is provided between the sliding element 2 and the clutch tube 38, preferably made of wear-resistant rubber or polytetrafluoroethylene. This ensures flexible axial sliding while preventing mud and moisture from entering the clutch mechanism, ensuring long-term operational reliability. The cooperation between the sliding element 1 and the groove 33 is a clearance-guided structure, which ensures flexible sliding and effectively controls frictional resistance. The sliding element 2 46 is fixed upward to the sliding element 1 42 by bolts and clamped on the outer wall of the groove 33. In addition to its moisture-proof effect, it can also be used as a rainproof structure. Furthermore, there is also a sealing structure between the lever 41 and the opening in the middle of the sliding element 1 41.

[0056] Multiple locking holes are provided on the locking plate 45 at the top of the housing 32. The hinge joint 43 is connected to the lever 41, and the locking bolt 44 is screwed from the bottom end of the hinge joint and passes into the locking hole towards the locking plate 45. When the locking bolt 44 is fully tightened, the axial position of the lever 41 is fixed, ensuring reliable engagement or decoupling between the clutch tube 38 and the output end of the motor 35 or the transmission shaft. By selecting different locking hole positions, flexible switching between electric and manual modes can be achieved. The outer end of the locking bolt 44 can be designed as a butterfly handle or an internal hexagonal socket. If necessary, anti-loosening adhesive can be applied to the thread surface to improve long-term locking stability and vibration resistance.

[0057] The locking plate 45 has at least one locking hole on its side. After the locking bolt 44 is screwed outward a certain distance, the hinge joint 43 can move freely. At this time, it can also be left unlocked. Then, the gate body 21 can be manually rotated by manually operating the crank handle 312. In normal use, the locking bolt 44 is aligned with the locking hole and screwed inward to a depth exceeding the thickness of the locking plate 45 to achieve locking.

[0058] When adjusting the clutch tube 38 for docking, the motor 35 should be stationary. Then, manually turn the handle 312 to rotate the worm gear 37 to achieve accurate docking of the docking slots.

[0059] Locking methods include not only those used in this application, but also spring-loaded locking pins, card pins, and so on.

[0060] During the operation of the algorithm within the control device, the meanings of the data codes are as follows: θ = gate angle; ω = angular velocity; Q_meas = measured instantaneous flow rate; Q_set = target flow rate; r_i = target allocation ratio; H = head; A_eff(θ) = equivalent cross-sectional area; State = operating mode flag The method of controlling the use of this application includes the following steps: Step 1: Power On and Self-Test The equipment cabinet is powered on and performs self-tests on the flow meter, level gauge, angle sensor, drive, power supply, and communication.

[0061] Read the clutch status and lever position. If not in the electric position, disable the motor and prompt for reset.

[0062] Record the last run data and load the configuration. [6 equipment cabinets, 8 flow meters, 4 clutches] Step 2: Angle Zero Position and Travel Reference Position Calibration Move the machine to the mechanical reference position at low speed to clear the angle code.

[0063] Run soft-position detection to determine opening and closing limits and generate safe angle ranges.

[0064] Write the angle limiter and acceleration / deceleration slope limiter parameters for subsequent closed-loop calls. [Adjustment mechanism, motor, worm gear drive chain] Step 3 Initial "Angle-Cross-Flow" Calibration θ is divided into several workstations and positioned sequentially, and the corresponding Q_meas and H are collected.

[0065] Generate A_eff(θ) lookup table and interpolator; establish Q=f(θ,H,μ) field curve.

[0066] The archive is a local calibration file, which can be used by all mode feedforwards.

[0067] Step 4: Select Operating Mode and Set Target In the human-machine interface, select State: constant flow, proportional flow splitting, priority channel, seasonal period, low power consumption, and sand flushing sequence.

[0068] Input targets: Q_set or r_i, minimum flow rate Q_min, maximum amplitude Q_max and dQ / dt_max, flushing time T_flush, etc.

[0069] Load the corresponding safety policies and interlock tables (electric / manual mutual exclusion, limit bit protection, etc.).

[0070] Step 5: Local Closed-Loop Preparation Establish a "feedforward + feedback" composite control chain: the feedforward uses A_eff(θ) and H to predict θ_ff, and the feedback outputs Δθ_fb with e = Q_set − Q_meas.

[0071] Enable dual-threshold hysteresis, inverse integral anti-saturation, rate limiting, and angle limiting.

[0072] Set the sampling period and minimum angle step, and enter the automatic main loop.

[0073] The purpose of the above steps is to ensure that the system completes a series of self-tests and calibrations before the equipment starts working.

[0074] Function: Check whether the motor, flow meter, sensor, power supply, communication and other components are normal; confirm the clutch position to prevent motor malfunction.

[0075] Function: To ensure that all processes start in a safe and controlled state.

[0076] Objective: By calibrating the zero angle and stroke, subsequent switching and adjustment will have a reference point to prevent deviations. This way, the controller can know the gate's angle and corresponding water flow cross-section for each gate action.

[0077] Simply put, this step is "power-on self-test + calibration" to ensure that the device enters the working state with the correct initial information.

[0078] In control equipment, the sub-processes for different usage modes are executed as follows: Constant-Q Read Q_meas and H, calculate θ_ff and superimpose Δθ_fb→θ_cmd.

[0079] The speed limiter outputs ω_cmd to drive the motor to θ_cmd; it then enters the hysteresis region and remains in place.

[0080] If H drifts slowly, periodically fine-tune θ_ff to avoid frequent small movements.

[0081] Record the running curve and error integral for subsequent self-tuning.

[0082] Ratio-Split (Dual / T-junction) Periodically estimate Q_sum and generate the target r_i·Q_sum for each branch.

[0083] Multiple constant current sub-loops are run in parallel, and θ is iteratively corrected to minimize the error of each branch.

[0084] If a certain branch road is restricted and triggers "proportional transfer", the shortfall will be shared among other branches road according to priority.

[0085] After reaching steady state, it enters hysteresis hold and continuously monitors the r_i deviation.

[0086] Priority channels and guaranteed flow Specify the priority branch and Q_min.

[0087] If Q_sum is insufficient: Non-priority channels will have limited or intermittent (duty cycle) water supply; priority channels will operate at constant flow to ensure that Q_min is ≥.

[0088] After the water supply is restored, press "soft return" to smoothly return to the original ratio.

[0089] Current limiting and over-limit protection When approaching Q_max or dQ / dt_max, decelerate in advance to enter the soft-limiting region.

[0090] If the limit is exceeded, quickly close the valve at a small angle → after stabilization, restore by pressing the ramp.

[0091] Record events, issue alarms, and write them into the black box log.

[0092] Pulse flushing and directional sand removal Criterion trigger (deposition threshold, periodic maintenance, or manual issuance) → switch to flushing sequence.

[0093] Adjust θ to the "sand flushing position" to create a local high flow velocity, and maintain T_flush.

[0094] The separation plate is manually removed and its orientation is changed. After directional sand removal is completed, the separation plate is reset.

[0095] The system returns to the operating angle by pressing "slow return" and restores the original mode.

[0096] The entire process retains the manual access point and safety interlock. [Slot 15 and Separator Plate 16 are compatible.] Seasonal / Time Period Curve Retrieve Q_set from the "Season-Day-Time Period" curve table.

[0097] The system employs a constant current closed-loop execution mechanism, automatically downgrading to a minimum protection strategy on days with water restrictions.

[0098] It supports overlay with proportional traffic splitting, and the priority is uniformly arbitrated by the strategy arbitrator.

[0099] Low power self-regulation Self-powered operation prioritizes maintaining low-power operation of sensors and controllers.

[0100] The correction is performed using a "batch processing" approach: a fixed period of wake-up correction is performed, while the rest are put into sleep mode.

[0101] Automatic degradation due to low battery: Extend batch processing cycle → Only maintain minimum flow → Prompt manual intervention. [Energy and equipment cabinet, flow meter link] During normal operation, the system uses different modes to control the water flow: Constant flow rate: Maintaining a stable water flow in a specific branch. Its function is to "quantitatively supply water".

[0102] Proportional diversion: Water is distributed to different branches according to a set ratio. Its function is "rational allocation".

[0103] Priority channels: When water is scarce, the water supply to the main channels is guaranteed, while other channels receive less water. Their function is to "protect key areas."

[0104] Sand flushing and discharge: When silt accumulates, the gate is adjusted to the sand flushing position, and with the guidance of the separation plate, the silt is discharged. Its function is "automatic silt removal".

[0105] Seasonal / Time-of-Day Water Supply: Automatically executes different flow curves based on seasonal and daytime / nighttime water demand. Its function is to "adapt to agricultural patterns."

[0106] Low-power operation: In remote or power-free conditions, the controller and sensors enter a power-saving mode, and the motor only operates briefly when necessary. This is designed for "energy-saving self-sustaining."

[0107] These modes all revolve around the core objective of "automatically adjusting water flow according to different needs." They can be switched between each other or used in combination; for example, water can be distributed proportionally while simultaneously ensuring a minimum water volume in a certain main branch.

[0108] Exceptions and manual redundancy Anomaly detection and manual switching Motor / drive malfunction: Issues a prompt to switch to manual mode and provides step-by-step instructions.

[0109] The operator pushes the lever to the decoupling position to disengage the clutch tube from the motor output; the locking bolt is then screwed into the corresponding locking hole of the locking plate to fix the lever position and prevent it from springing back.

[0110] Insert the crank handle into the gear input end, and manually adjust it to the safe or target position according to the angle gauge or on-site water level experience; after operation, store the crank handle and lock it mechanically.

[0111] After troubleshooting: Move the lever back to the electric position and tighten the locking bolt → execute "Quick Reset Verification" (zero position, reference position, three-point recalibration) → return to automatic in parallel.

[0112] (Sliding element 1 and sliding groove 33 provide linear guidance for the lever; sliding element 2 and the clutch tube provide a sliding seal to prevent mud and water vapor from entering; the locking bolt achieves mechanical interlocking through the locking hole to ensure mutual exclusion safety between electric and manual operation. [Clutch, sliding groove 33, sliding element, locking plate, crank handle]) Sensor and communication anomalies Sensor single-point anomaly: Switch the angle table driver (approximately controlled by A_eff(θ)) and prompt for retesting as soon as possible.

[0113] Communication interruption: Enter local backup strategy and low-frequency batch processing; after communication is restored, soft return and reconcile missing data entries.

[0114] Measurement, Coordination and Shutdown Water metering and settlement Instantaneous: Display and upload Q_meas.

[0115] Cumulative: Interval integration forms daily / monthly / irrigation season water volume accounts; proportional diversion integrates each branch separately.

[0116] Correction: Sections and coefficients are periodically corrected based on sedimentation monitoring, with traceable records; local export and remote reconciliation are supported. [Flowmeter and Equipment Cabinet] Multi-gate coordination (series-parallel system) Series system: upstream main gate pipe is constrained by total flow and water level, downstream slave gate is used for distribution and flow stabilization; establish a "master-slave + limiter" architecture to avoid oscillation.

[0117] Parallel system: Optimizes water allocation with "minimum deviation" to avoid water competition; disconnects from the network according to priority in case of abnormality.

[0118] Shutdown and Recovery Stop the machine: switch to the bottom protection switch or full shutdown switch → drop the data onto the tray → turn off the motor and control power → lock the lever and store the crank handle.

[0119] Recovery: Follow the steps 1 → 2 → 3 to load the previous mode and target, soft open loop preset angle, and then close loop takeover.

[0120] Data and parameter management Operating curves, events, alarms, correction factors, and calibration files are archived hierarchically.

[0121] Modifying and exporting parameters requires unauthorized confirmation and write protection to prevent accidental operations.

[0122] Regularly generate "health reports": number of movements, number of times exceeding limits, and recommendations for sealing and lubrication.

[0123] The equipment was designed with the complex on-site environment in mind, which may result in power outages or malfunctions, therefore a manual backup mode is included. Electrical fault or power outage: The operator can separate the motor and transmission mechanism by using the lever, and then manually rotate the gate with the crank to complete the opening and closing operation.

[0124] If the sensor malfunctions, the system will revert to "angle meter drive," which means using the gate angle to approximate the water flow based on the previous calibration relationship.

[0125] In an emergency: the system will adjust the gate to a safe position and record all actions for easy traceability later.

[0126] These steps serve as a safety net, ensuring that the sluice gates remain operational regardless of whether there are problems with the automation components. The goal is to prevent the entire canal system from going out of control due to equipment failure.

[0127] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rectangular channel rotary sluice gate integrated flow control device, comprising a water channel (1), characterized in that: The water channel (1) is equipped with a rotatable gate (2) inside. The top of the gate (2) is equipped with an adjustment mechanism (3) that drives the gate (2) to rotate. The top of the adjustment mechanism (3) is equipped with a clutch (4). The water channel (1) is embedded in the ground (5). The water channel (1) has an open channel box flow meter (8) inside. An equipment cabinet (6) is set above the ground. The equipment cabinet (6) is used to read the data of the open channel box flow meter (8), and after calculation, drives and controls the adjustment mechanism (3). The water channel (1) includes a gate frame (11), and a waterway (14) is provided on the outside of the gate frame (11). The gate (2) includes a gate body (21), and the side wall of the gate body (21) is provided with an opening (22). The adjustment mechanism (3) includes a base (31), a motor (35) is provided above the base (31), the motor (35) drives the gate body (21) to rotate through a gear assembly, the output end of the motor (35) is coaxially arranged with the transmission shaft of the gear assembly, and a clutch tube (38) is slidably assembled on the output end of the motor (35), a housing (32) is assembled on the top of the base (31), and a clutch (4) is slidably assembled on the top of the housing (32); The clutch (4) includes a lever (41), the bottom end of which is rotatably mounted on the outside of the clutch tube (38), and the top end of which extends to the outside of the housing (31). The clutch (4) and the clutch tube (38) are connected or disconnected from the power between the output end of the motor (35) and the transmission shaft by sliding displacement. The other end of the input shaft of the gear assembly is provided with a detachable crank handle (312).

2. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 1, characterized in that: The gate frame (11) is provided with a gate slot (12) inside, and a gate opening (13) is provided on the outside of the gate slot (12). A drop groove (18) is provided at the bottom of the gate frame (11). The gate slot (12) and the drop groove (18) are sealed by wrapping the outer wall of the gate body (21). The bottom surface of the opening (22) is flush with the top surface of the drop groove (18).

3. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 1, characterized in that: The waterway (14) has a slot (15) at the connection of the gate frame (11), and a separation plate (16) is slidably fitted inside the slot (15).

4. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 1, characterized in that: Bolts (17) are embedded in the top periphery of the gate frame (11). The bolts (17) pass through the base (31) and the outer shell (32) to fix the base (31) and the outer shell (32). A connecting shaft (23) is assembled at the top of the gate body (21). The connecting shaft (23) passes through the base (31) and is fixed relative to the output end of the gear assembly.

5. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 4, characterized in that: The gear assembly includes a worm gear (36) and a worm gear (37) that mesh with each other. The worm gear (36) is fixed relative to the connecting shaft (23). The transmission shaft is disposed through the axis of the worm gear (37). The gear assembly is fixed to the top of the base (31) by a transmission seat (35).

6. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 1, characterized in that: The clutch tube (38) is provided with a retaining ring (39) on the outside, and a round nut (310) is screwed onto the outside of the retaining ring (39). The round nut (310) and the retaining ring (39) are located on the outside of the lever (41). A sliding groove (33) is provided at the top of the outer shell (32).

7. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 6, characterized in that: The lever (41) is sleeved with a sliding member (41) on the outside. The bottom end of the sliding member (41) is provided with a slider. The slider is sleeved inside the groove (33). The bottom end of the sliding member (41) is fixedly fitted with a sliding member (46). The top of the outer shell (31) is provided with a locking plate (45). The clutch tube (38) is locked to rotate with the output end of the motor (35) or the transmission shaft.

8. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 7, characterized in that: The inner wall of the clutch tube (38) is fixed with a key bar (311), and the output end of the motor (35) and the outer side of the transmission shaft are provided with keyways of the same size.

9. The integrated flow control device for a rectangular channel rotary sluice gate according to claim 7, characterized in that: The top of the lever (41) is hinged to a hinge joint (43), and the bottom of the hinge joint (43) is screwed with a locking bolt (44). The top of the housing (31) is fixed with a locking plate (45). At least one locking hole is provided on the outer side of the locking plate (45). When the locking bolt (44) passes through the locking hole, the clutch (44) and the clutch tube (38) are in the connection state between the output end of the motor (35) and the transmission shaft.

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