A type of antifreeze river channel dam for water conservancy projects

Abstract

This invention relates to a frost-resistant river channel gate for water conservancy engineering, comprising: a gate frame, with gate slots on the inner walls at both ends of the gate frame, and a gate plate movably mounted within the gate slots; an opening and closing mechanism for raising and lowering the gate plate is provided at the top of the gate frame; and an anti-freezing unit, located on the water-facing side of the gate plate, with equally spaced magnetic blocks fixedly installed at the center of the side of the anti-freezing unit closest to the gate plate, the magnetic blocks being magnetically connected to the water-facing side of the gate plate. This invention reduces the probability of the gate freezing to ice through multiple layers of protection. Simultaneously, during the gate plate's ascent, an ice-breaking mechanism is synchronously driven to generate oblique, multi-frequency vibrations, making ice breaking more efficient and thorough, removing surface impurities, and preventing ice from freezing to the gate plate. This achieves integrated operation of opening / closing, ice breaking, and anti-freezing, solving the problem of ice obstructing the gate's movement.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to an antifreeze river channel dam for water conservancy projects. Background Technology

[0002] River sluice gates are core infrastructure in water conservancy projects, crucial for regulating river levels, controlling water flow, and achieving flood and drought control. Their flexibility in opening and closing, and the stability of their structure, directly determine the operational safety of water conservancy projects. In regions where winter temperatures remain below 0°C for extended periods, river water easily freezes at the interface between the gate and the water surface, forming an ice layer. This ice layer can become tightly bound to the gate structure, directly hindering normal opening and closing, causing failure in river level control. Furthermore, during forced opening and closing, it can exert rigid tension and compression on the gate's frame, plates, and opening / closing transmission structure, leading to irreversible structural damage such as gate deformation and connector breakage. This severely reduces the gate's service life and poses a significant threat to the safe operation of water conservancy projects during winter.

[0003] Current antifreeze measures for this problem either rely on external power supply for heating and oxygenation, which completely fails when the power is off, and are costly and energy-intensive to modify; or they use the traditional method of manually laying plants, which is cumbersome to construct, has poor stability, and is prone to loosening and loss after being soaked in water, making it difficult to guarantee the antifreeze effect. Neither of these methods can fundamentally solve the problem of difficulty in opening and closing the gate and structural damage caused by the freezing of the gate and the ice layer. Therefore, there is an urgent need to design an antifreeze river gate for water conservancy projects to solve the above problems. Summary of the Invention

[0004] To address the above problems, this invention provides a frost-resistant river channel dam for hydraulic engineering, comprising: A gate frame, wherein gate slots are provided on the inner walls at both ends of the gate frame, and a gate plate is movably installed in the gate slots; and an opening and closing mechanism for driving the gate plate to rise and fall is provided on the top of the gate frame. An antifreeze unit is provided on the water-facing side of the gate plate. Magnetic blocks are fixedly installed at equal intervals on the middle of the side of the antifreeze unit closest to the gate plate. The magnetic blocks are magnetically connected to the water-facing side of the gate plate. The size of the antifreeze unit is similar to the size of the water-facing side of the gate plate. Multiple release plates are fixedly installed at equal intervals on one side of the top inner wall of the gate frame, and the bottom of each release plate is designed to be arc-shaped. The arc-shaped bottom of the release plate is inserted into the gap between the antifreeze unit and the gate plate to release the magnetic connection between the antifreeze unit and the gate plate. Multiple reset mechanisms are provided between the antifreeze unit and the gate plate for resetting the antifreeze unit after the magnetic connection is released. An ice-breaking mechanism is fixedly installed on the gate frame and located on the water-facing side of the antifreeze unit, and is used to break the ice layer on the water-facing side of the antifreeze unit.

[0005] The present invention is further configured such that the antifreeze unit consists of an antifreeze plate, an ice-breaking plate, multiple elastic rings, a U-shaped telescopic pad, and a flexible sealing strip, and the magnetic block is fixedly installed on the side of the antifreeze plate near the water-facing side of the gate plate. The two sides of the U-shaped telescopic pad are fixedly connected to the back water-facing side of the antifreeze plate and the water-facing side of the gate plate, respectively. The cross-section of the antifreeze plate is designed to be U-shaped, and the ice-breaking plate is embedded in the U-shaped cavity of the antifreeze plate. Multiple elastic rings are fixedly installed at equal intervals between the ice-breaking plate and the antifreeze plate. The elastic rings are made of shape memory metal.

[0006] The invention is further configured such that the periphery of the back surface of the ice-breaking plate and the periphery of the U-shaped inner wall of the antifreeze plate are sealed and connected by a flexible sealing strip, and both the flexible sealing strip and the U-shaped expansion pad are made of low-temperature resistant elastic nitrile rubber.

[0007] The invention is further configured such that the water-facing surface of the ice-breaking plate is fixedly equipped with equally spaced protrusions, and the cross-section of the protrusions is designed as an isosceles triangle.

[0008] The invention is further configured such that the reset mechanism includes a plurality of insertion holes opened on the water-facing side of the gate plate, and a movable column inserted into the insertion hole is fixedly installed on the back side of the antifreeze plate. The cross-section of the movable column and the insertion hole is designed to be T-shaped, and a reset spring is fixedly installed at one end of the movable column and one end of the insertion hole.

[0009] The present invention is further configured such that the back surface of the antifreeze plate is provided with a plurality of grooves, and the positions of the grooves correspond one-to-one with the positions of the escape plate. The inner wall of the groove is rotatably connected to a pulley by a pin, and the pulley slides in cooperation with one side of the arc surface of the escape plate.

[0010] The invention is further configured such that the opening and closing mechanism includes an installation groove located at the middle of the top of the gate frame, and an internally threaded cylinder is rotatably connected to the inner wall of the installation groove via a bearing. A threaded post is screwed onto the inner wall of the internally threaded cylinder. A lifting sleeve is fixedly installed at the middle of the top of the gate plate, and the inner wall of the lifting sleeve is rotatably connected to the bottom end of the threaded post. A top frame fitted outside the internally threaded cylinder is fixedly installed on the top of the gate frame, and a forward and reverse motor is fixedly installed at one end of the top of the top frame. A drive gear located inside the top frame is fixedly installed on the output shaft of the forward and reverse motor. A first transmission gear meshing with the drive gear is fixedly installed on the top of the outer wall of the internally threaded cylinder. An movable hole for the threaded post to pass through is opened at the other end of the top of the top frame.

[0011] The invention is further configured such that the ice-breaking mechanism includes a side frame fixedly installed on one side of the top frame, and a drive shaft is rotatably connected inside the side frame. A second drive gear meshing with a first drive gear is fixedly installed on the top of the drive shaft. A mounting shaft is rotatably connected to the bottom of the side frame, and a worm gear is fixedly installed in the middle of the mounting shaft. A worm gear meshing with the worm gear is fixedly installed on the bottom of the drive shaft. Rotating frames are fixedly installed at both ends of the mounting shaft, and equally spaced actuating wheels are rotatably connected to the rotating frames via pins.

[0012] The present invention is further configured such that a sealing gasket is fixedly installed on the inner wall of the gate slot, and the outer walls at both ends of the gate plate are engaged with the inner wall of the sealing gasket.

[0013] The present invention is further configured such that the antifreeze plate is formed by fixing and bonding an aluminum alloy panel and a heat insulation layer, and the heat insulation layer is a polyurethane heat insulation layer, which is disposed on the side facing the gate plate.

[0014] In summary, by adopting the above structure, the present invention has the following advantages compared with the prior art: 1. The present invention features an anti-freezing unit on the water-facing side of the gate plate. The anti-freezing plate is made of an aluminum alloy panel bonded to a polyurethane insulation layer facing the gate plate. This effectively isolates the heat conduction from the external low temperature to the gate plate body, reducing the possibility of icing in the area where the gate contacts the water. At the same time, the U-shaped expansion pad and flexible sealing strip are made of low-temperature resistant nitrile rubber, which can maintain elasticity in low-temperature environments and achieve a full gap seal between the anti-freezing unit and the gate plate, preventing water from seeping into the gap and forming an ice layer. The elastic ring made of memory metal can also adaptively adjust the position of the ice-breaking plate. Multiple protections reduce the probability of the gate freezing with ice from the source.

[0015] 2. The ice-breaking mechanism and the opening and closing mechanism of this invention share a power system. When the gate is opened, the opening and closing mechanism drives the gate plate to rise while simultaneously driving the ice-breaking mechanism to operate. Through the dynamic cooperation between the actuating wheel and the ice-breaking plate, combined with the isosceles triangular protrusion to generate oblique multi-frequency vibration force, the ice-breaking is more efficient and thorough than the traditional horizontal force. It can also simultaneously remove garbage, scum and other impurities from the surface of the ice-breaking plate. Furthermore, during the gate's ascent, the release plate and pulley are forcibly released from magnetic attraction, and the reset mechanism further ensures that the anti-freezing unit is completely separated from the gate plate, preventing the ice layer from freezing together with the gate plate. This achieves integrated linkage of opening and closing, ice breaking and anti-freezing, completely solving the problem of ice layer obstructing the gate's lifting and lowering.

[0016] 3. This invention eliminates the need for a curved bottom design and sliding contact with pulleys, making the release of the magnetic connection smooth and without jamming, thus reducing structural wear. The elastic ring made of memory metal can adaptively expand and contract with the vibration of the ice-breaking plate, ensuring efficient transmission of vibration force and buffering vibration impact. Combined with a low-temperature resistant sealing structure, it avoids hard damage to the structure caused by vibration. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an antifreeze river channel water-blocking gate for water conservancy projects according to the present invention; Figure 2 This is a three-dimensional sectional view of an antifreeze river channel dam for water conservancy projects according to the present invention. Figure 3 This is a schematic diagram of the movable hole and mounting groove structure of an antifreeze river channel water-blocking gate for water conservancy projects according to the present invention; Figure 4 This is a side sectional view of an antifreeze river channel dam gate for water conservancy projects according to the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the rotating frame and actuating wheel structure of an antifreeze river channel dam for water conservancy projects according to the present invention; Figure 7 This is a perspective view of the gate plate and antifreeze plate of a frost-resistant river channel dam for water conservancy projects according to the present invention. Figure 8 for Figure 7 Explosion diagram; Figure 9 This is a schematic diagram of the reset mechanism of a frost-resistant river channel dam for water conservancy projects according to the present invention. Figure 10 This is a schematic diagram of the heat insulation layer structure of an antifreeze river channel water-blocking gate for water conservancy projects according to the present invention.

[0018] Explanation of the labels in the diagram: 1. Gate frame; 2. Gate plate; 3. Opening and closing mechanism; 31. Top frame; 32. Threaded column; 33. Forward and reverse motor; 34. Internal threaded drum; 35. First transmission gear; 36. Drive gear; 37. Lifting sleeve; 38. Movable hole; 39. Mounting groove; 4. Ice-breaking mechanism; 41. Side frame; 42. Second transmission gear; 43. Transmission shaft; 44. Rotating frame; 45. Actuating wheel; 46. Mounting shaft; 47. Worm gear; 48. Worm; 5. Sealing gasket; 6. Escape plate; 7. Antifreeze plate; 71. Heat insulation layer; 72. Aluminum alloy panel; 8. Protrusion; 9. Ice-breaking plate; 10. Elastic ring; 11. Gate groove; 12. U-shaped telescopic pad; 13. Reset mechanism; 131. Movable column; 132. Reset spring; 133. Insertion hole; 14. Pulley; 15. Flexible sealing strip; 16. Magnetic block; 17. Groove. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Please see Figures 1-10 This invention provides a frost-resistant river channel dam for hydraulic engineering, comprising: A gate frame 1 has gate slots 11 on both inner walls, and a gate plate 2 is movably installed in each slot. A gate opening and closing mechanism 3 for raising and lowering the gate plate 2 is provided on the top of the gate frame 1. The mechanism 3 includes a mounting slot 39 located in the middle of the top of the gate frame 1, and an internally threaded cylinder 34 is rotatably connected to the inner wall of the mounting slot 39 via a bearing. A threaded post 32 is screwed onto the inner wall of the internally threaded cylinder 34. A lifting sleeve 37 is fixedly installed in the middle of the top of the gate plate 2, and the inner wall of the lifting sleeve 37 is rotatably connected to the bottom end of the threaded post 32. A top frame 31, fitted over the internally threaded cylinder 34, is fixedly installed on the top of the gate frame 1, and a forward / reverse motor is fixedly installed at one end of the top of the top frame 31. 33. The output shaft of the reversible motor 33 is fixedly mounted with a drive gear 36 located inside the top frame 31. The top of the outer wall of the internal threaded drum 34 is fixedly mounted with a first transmission gear 35 that meshes with the drive gear 36. The other end of the top of the top frame 31 is provided with a movable hole 38 for the threaded column 32 to pass through. When working, the reversible motor 33 drives the drive gear 36 to rotate, which drives the first transmission gear 35 and the internal threaded drum 34 to rotate synchronously. The rotational motion is converted into linear lifting motion through the threaded engagement between the internal threaded drum 34 and the threaded column 32. The threaded column 32 moves along the movable hole 38 and drives the gate plate 2 to rise and fall along the gate slot 11 through the lifting sleeve 37, thereby accurately controlling the lifting stroke of the gate plate 2. The antifreeze unit is located on the water-facing side of the gate plate 2. Magnetic blocks 16 are fixedly installed at equal intervals on the middle of the side of the antifreeze unit closest to the gate plate 2. The magnetic blocks 16 are magnetically connected to the water-facing side of the gate plate 2. The size of the antifreeze unit is similar to the size of the water-facing side of the gate plate 2. The antifreeze unit consists of an antifreeze plate 7, an ice-breaking plate 9, multiple elastic rings 10, a U-shaped telescopic pad 12, and a flexible sealing strip 15. The magnetic blocks 16 are fixedly installed on the side of the antifreeze plate 7 closest to the water-facing side of the gate plate 2. The two sides of the U-shaped telescopic pad 12 are fixedly connected to the back surface of the antifreeze plate 7 and the water-facing side of the gate plate 2, respectively. The expansion and contraction of the U-shaped telescopic pad 12 ensures a constant seal between the antifreeze plate 7 and the gate plate 2, preventing moisture and debris from entering the gap and affecting normal operation. The cross-section of the antifreeze plate 7 is U-shaped, and the ice-breaking plate 9 is embedded in the U-shaped cavity of the antifreeze plate 7. The multiple elastic rings 10 are fixedly installed at equal intervals. Installed between the ice-breaking plate 9 and the antifreeze plate 7, the elastic ring 10 is made of memory metal. The water-facing surface of the ice-breaking plate 9 is fixedly equipped with equidistantly distributed protrusions 8, and the cross-section of the protrusions 8 is designed as an isosceles triangle. The antifreeze unit is firmly adsorbed onto the water-facing surface of the gate plate 2 by the magnetic block 16, forming an antifreeze and ice-breaking protective layer. The heat insulation layer 71 faces the gate plate 2 to effectively isolate low temperature conduction. The U-shaped telescopic pad 12 and the flexible sealing strip 15 achieve full gap sealing to prevent water from seeping in and freezing. The memory metal elastic ring 10 adaptively adjusts the position of the ice-breaking plate 9 so that the ice-breaking plate 9 always fits the ice layer area. The isosceles triangular protrusions 8 can increase the contact pressure with the ice layer. Subsequently, with the help of the actuating wheel 45, it can generate oblique vibration force. This structural design allows the antifreeze unit to have the basic functions of heat insulation, sealing and ice breaking. Multiple protections reduce the probability of the gate freezing with the ice layer from the source. The magnetic connection method makes the disassembly and maintenance of the antifreeze unit more convenient. Multiple release plates 6 are equidistantly fixedly installed on one side of the top inner wall of the gate frame 1. The bottom of each release plate 6 is designed to be arc-shaped, and the arc-shaped bottom of the release plate 6 is inserted into the gap between the antifreeze unit and the gate plate 2 to release the magnetic connection between the antifreeze unit and the gate plate 2. The backwater surface of the antifreeze plate 7 has multiple grooves 17, and the positions of the grooves 17 correspond one-to-one with the positions of the release plates 6. The inner wall of the grooves 17 is rotatably connected to the pulleys 14 by pins, and the pulleys 14 are aligned with the arc-shaped side of the release plate 6. With the sliding engagement, the gate plate 2 moves upward with the opening and closing mechanism 3, and the bottom arc edge of the release plate 6 smoothly inserts into the gap between the antifreeze unit and the gate plate 2, pushing the pulley 14 to slide smoothly along the arc surface of the release plate 6. The magnetic attraction between the magnetic block 16 and the gate plate 2 is forcibly released by mechanical force. The arc design combined with the sliding of the pulley 14 makes the release process smooth and without hard collision, reducing the structural wear of the release plate 6 and the antifreeze plate 7, allowing the antifreeze unit to be smoothly separated from the gate plate 2, and preventing ice from sticking to the gate plate 2 and affecting the lifting and lowering.

[0023] Multiple reset mechanisms 13 are disposed between the antifreeze unit and the gate plate 2 for resetting the antifreeze unit after the magnetic connection is released. Each reset mechanism 13 includes multiple insertion holes 133 on the water-facing side of the gate plate 2, and a movable column 131 inserted into the insertion hole 133 is fixedly installed on the back side of the antifreeze plate 7. The cross-sections of the movable column 131 and the insertion hole 133 are designed in a T shape. A reset spring 132 is fixedly installed at one end of the movable column 131 and one end of the insertion hole 133. During the process of releasing the magnetic connection, the elastic reset force of the reset spring 132 will push the movable column 131 to move in the opposite direction, further driving the antifreeze plate 7 to completely separate from the gate plate 2, ensuring that the two are not stuck together. An ice-breaking mechanism 4 is fixedly installed on the gate frame 1 and located on the water-facing side of the antifreeze unit. It is used to break the ice layer on the water-facing side of the antifreeze unit. The ice-breaking mechanism 4 includes a side frame 41 fixedly installed on one side of the top frame 31. A drive shaft 43 is rotatably connected inside the side frame 41. A second drive gear 42, meshing with a first drive gear 35, is fixedly installed at the top of the drive shaft 43. A mounting shaft 46 is rotatably connected to the bottom of the side frame 41. A worm gear 47 is fixedly installed in the middle of the mounting shaft 46. A worm 48, meshing with the worm gear 47, is fixedly installed at the bottom of the drive shaft 43. Rotating frames 44 are fixedly installed at both ends of the mounting shaft 46. Equally spaced actuating wheels 45 are rotatably connected to the rotating frames 44 via pins. The distance between the actuating wheels 45 and the ice-breaking plate 9 is equal to the maximum movement distance of the antifreeze plate 7. Equally, the rotation of the first transmission gear 35 of the opening and closing mechanism 3 synchronously drives the second transmission gear 42 and the transmission shaft 43 to rotate. Through the meshing transmission of the worm gear 48 and the worm wheel 47, the mounting shaft 46 and the rotating frame 44 are driven to rotate. The actuating wheel 45 on the rotating frame 44 rotates together and continuously approaches and repeatedly actuates the ice-breaking plate 9. It interacts with the protrusions 8 on the ice-breaking plate 9 to generate continuous oblique vibration force of different frequencies, which is transmitted upward and downward to the ice layer. Compared with the traditional horizontal force, it can break the thick ice layer more efficiently and thoroughly. At the same time, the high-frequency vibration can also remove garbage, scum and other impurities from the surface of the ice-breaking plate 9 and the protrusions 8, achieving the dual effect of ice breaking and cleaning. Moreover, the ice-breaking mechanism 4 and the opening and closing mechanism 3 share a power system and do not need to be operated separately, realizing the integrated linkage of opening and closing and ice breaking, which greatly improves the operating efficiency of the gate.

[0024] In this invention, the periphery of the back surface of the ice-breaking plate 9 and the periphery of the U-shaped inner wall of the antifreeze plate 7 are sealed and connected by a flexible sealing strip 15. Both the flexible sealing strip 15 and the U-shaped telescopic pad 12 are made of low-temperature resistant elastic nitrile rubber. The flexible sealing strip 15 and the U-shaped telescopic pad 12 made of low-temperature resistant nitrile rubber can still maintain good elasticity and sealing performance in low-temperature environments. The U-shaped telescopic pad 12 adapts to the movement of the antifreeze plate 7 and expands and contracts accordingly, always sealing the gap between the antifreeze plate 7 and the gate plate 2. The flexible sealing strip 15 seals the gap between the ice-breaking plate 9 and the inner cavity of the antifreeze plate 7. The double sealing completely prevents water from seeping into the gaps and forming ice layers, avoiding the risk of freezing from the source. At the same time, the buffering properties of the rubber material can offset the impact force when the antifreeze plate 7 and the ice-breaking plate 9 move and vibrate, reducing hard collisions between structures, avoiding cracking and damage of components, and improving the overall cold resistance and vibration resistance of the structure.

[0025] In this invention, sealing gaskets 5 are fixedly installed on the inner wall of the gate slot 11, and the outer walls of both ends of the gate plate 2 cooperate with the inner wall of the sealing gaskets 5 to form a sealed water-blocking structure, which effectively prevents water from leaking from the gap between the gate slot 11 and the gate plate 2, and ensures the water-blocking effect of the gate.

[0026] In this invention, the antifreeze plate 7 is formed by fixing and bonding an aluminum alloy panel 72 and a heat insulation layer 71. The heat insulation layer 71 is a polyurethane heat insulation layer. The heat insulation layer 71 is set on the side facing the gate plate 2. The heat insulation layer 71 can effectively isolate the low temperature water in the river and the external low temperature environment from conducting heat to the gate plate 2 body, greatly reducing the possibility of freezing in the area where the gate plate 2 is in contact with the water.

[0027] In summary, the working principle of this invention is as follows: When there is a risk of freezing in the area where the river water meets the gate in the low-temperature environment of winter, the anti-freezing river water barrier gate first forms the first layer of anti-freezing protection through the anti-freezing unit magnetically connected to the water-facing side of the gate plate 2. The anti-freezing plate 7 of the anti-freezing unit is made of aluminum alloy panel 72 and polyurethane insulation layer 71 facing the gate plate 2, which can effectively isolate the heat conduction from the external low temperature to the gate plate 2 body, thereby reducing the probability of freezing in the area where the gate plate 2 contacts the water from the source. Meanwhile, the U-shaped telescopic pad 12 and flexible sealing strip 15 of the antifreeze unit achieve full gap sealing between the antifreeze unit and the gate plate 2, preventing water from seeping into the gap and forming an ice layer. The elastic ring 10 is made of memory metal and can adaptively adjust the position of the ice-breaking plate 9 to further reduce the risk of the gate freezing with the ice layer. When the gate needs to be opened, the opening and closing mechanism 3 starts first. The forward and reverse motor 33 drives the drive gear 36 on the output shaft to rotate. The drive gear 36 meshes with the first transmission gear 35, driving the internal threaded drum 34 to rotate around the bearing in the mounting groove 39 at the top of the gate frame 1. The internal threaded drum 34 forms a threaded engagement with the threaded column 32, converting the rotational motion into linear lifting motion. The threaded column 32 pushes the lifting sleeve 37 upward along the movable hole 38 of the top frame 31, thereby driving the gate plate 2 to move smoothly upward along the sealing gasket 5 in the gate groove 11 at both ends of the gate frame 1. As the gate plate 2 moves upward, the bottom arc edge of the release plate 6 on the inner wall of the top of the gate frame 1 will smoothly insert into the gap between the antifreeze unit and the gate plate 2, pushing the pulley 14 in the groove 17 on the back side of the antifreeze unit to slide smoothly along the arc surface of the release plate 6, thereby forcibly separating the magnetic block 16 from the gate plate 2. At the same time, the movable column 131 in the reset mechanism 13 moves along the insertion hole 133 under the elastic reset force of the reset spring 132, ensuring that the antifreeze unit is completely separated from the gate plate 2, thus structurally preventing the ice layer from freezing together with the gate plate 2 and hindering the opening and closing of the gate. Furthermore, during the synchronous operation of the opening and closing mechanism 3, the rotation of the first transmission gear 35 synchronously drives the second transmission gear 42 to rotate the transmission shaft 43 within the side frame 41. Then, through the meshing of the worm gear 48 and worm wheel 47, the mounting shaft 46 rotates, causing the rotating brackets 44 at both ends of the mounting shaft 46 to continuously approach and repeatedly actuate the ice-breaking plate 9 with the actuating wheel 45. The dynamic contact and interaction between the isosceles triangular protrusion 8 on the water-facing side of the ice-breaking plate 9 and the actuating wheel 45 generates continuous vibrational forces of different frequencies. These vibrational forces are transmitted to the ice layer in inclined upward and downward directions, unlike the traditional horizontal force. It can break up thick ice layers on the water-facing side more efficiently and thoroughly. At the same time, this high-frequency vibration can also remove debris, scum and other impurities attached to the surface of the ice-breaking plate 9 and the protrusion 8, achieving the dual effect of ice breaking and cleaning. During the entire working process, the elastic ring 10 made of memory metal can adapt to the vibration of the ice-breaking plate 9 and expand and contract accordingly. Combined with the sealing structure made of low-temperature resistant nitrile rubber, it not only ensures the transmission efficiency of ice-breaking vibration, but also avoids hard damage to the structure due to vibration. Meanwhile, the sealing gasket 5 in the gate slot 11 always ensures the water-blocking and sealing performance of the gate plate 2 during the lifting and lowering process, ultimately achieving efficient ice breaking and smooth opening and closing of the gate.

[0028] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A frost-resistant river channel dam for water conservancy projects, characterized in that, include: Gate frame (1), both ends of the gate frame (1) are provided with door grooves (11), and a gate plate (2) is movably arranged in the door groove (11). The top of the gate frame (1) is provided with an opening and closing mechanism (3) for driving the gate plate (2) to rise and fall. The antifreeze unit is set on the water-facing side of the gate plate (2), and magnetic blocks (16) are fixedly installed at equal intervals on the middle of the side of the antifreeze unit near the gate plate (2). The magnetic blocks (16) are magnetically connected to the water-facing side of the gate plate (2). The size of the antifreeze unit is similar to the size of the water-facing side of the gate plate (2). Multiple release plates (6) are fixedly installed at equal intervals on one side of the top inner wall of the gate frame (1), and the bottom of each release plate (6) is designed to be arc-shaped. The arc-shaped bottom of the release plate (6) is inserted into the gap between the antifreeze unit and the gate plate (2) to release the magnetic connection between the antifreeze unit and the gate plate (2). Multiple reset mechanisms (13) are provided between the antifreeze unit and the gate plate (2) for resetting the antifreeze unit after the magnetic connection is released; Ice-breaking mechanism (4) is fixedly installed on the gate frame (1) and located on the water-facing side of the antifreeze unit, and is used to break the ice layer on the water-facing side of the antifreeze unit.

2. The anti-freezing river channel dam gate for water conservancy projects according to claim 1, characterized in that, The antifreeze unit consists of an antifreeze plate (7), an ice-breaking plate (9), multiple elastic rings (10), a U-shaped telescopic pad (12), and a flexible sealing strip (15). The magnetic block (16) is fixedly installed on the side of the antifreeze plate (7) near the water-facing side of the gate plate (2). The two sides of the U-shaped telescopic pad (12) are fixedly connected to the back side of the antifreeze plate (7) and the water-facing side of the gate plate (2), respectively. The cross-section of the antifreeze plate (7) is designed as U-shaped, and the ice-breaking plate (9) is embedded in the U-shaped cavity of the antifreeze plate (7). Multiple elastic rings (10) are fixedly installed at equal intervals between the ice-breaking plate (9) and the antifreeze plate (7). The elastic rings (10) are made of memory metal.

3. A frost-resistant river channel dam for water conservancy projects according to claim 2, characterized in that, The back surface of the ice-breaking plate (9) is sealed to the inner wall of the U-shaped cavity of the antifreeze plate (7) by a flexible sealing strip (15), and both the flexible sealing strip (15) and the U-shaped expansion pad (12) are made of low-temperature resistant elastic nitrile rubber.

4. A frost-resistant river channel dam for water conservancy projects according to claim 3, characterized in that, The ice-breaking plate (9) has equidistantly distributed protrusions (8) fixedly installed on its water-facing surface, and the cross-section of the protrusions (8) is designed as an isosceles triangle.

5. A frost-resistant river channel dam for water conservancy projects according to claim 4, characterized in that, The reset mechanism (13) includes multiple insertion holes (133) opened on the water-facing side of the gate plate (2), and a movable column (131) inserted into the insertion hole (133) is fixedly installed on the back side of the antifreeze plate (7). The cross-section of the movable column (131) and the insertion hole (133) is designed as T-shaped, and a reset spring (132) is fixedly installed at one end of the movable column (131) and one end of the insertion hole (133).

6. A frost-resistant river channel dam for water conservancy projects according to claim 5, characterized in that, The antifreeze plate (7) has multiple grooves (17) on its back surface, and the position of the grooves (17) corresponds one-to-one with the position of the escape plate (6). The inner wall of the groove (17) is rotatably connected to a pulley (14) by a pin, and the pulley (14) slides with one side of the arc surface of the escape plate (6).

7. A frost-resistant river channel dam gate for water conservancy projects according to claim 6, characterized in that, The opening and closing mechanism (3) includes an installation groove (39) located at the top center of the gate frame (1), and an internally threaded cylinder (34) is rotatably connected to the inner wall of the installation groove (39) via a bearing. A threaded post (32) is screwed onto the inner wall of the internally threaded cylinder (34). A lifting sleeve (37) is fixedly installed at the top center of the gate plate (2), and the inner wall of the lifting sleeve (37) is rotatably connected to the bottom end of the threaded post (32). A sleeve is fixedly installed on the top of the gate frame (1). The top frame (31) outside the internal threaded drum (34) is fixedly installed at one end of the top of the top frame (31), and the output shaft of the internal threaded drum (33) is fixedly installed with a drive gear (36) located inside the top frame (31). The top of the outer wall of the internal threaded drum (34) is fixedly installed with a first transmission gear (35) that meshes with the drive gear (36). The other end of the top of the top frame (31) is provided with an active hole (38) through which the threaded column (32) passes.

8. A frost-resistant river channel dam for water conservancy projects according to claim 1, characterized in that, The ice-breaking mechanism (4) includes a side frame (41) fixedly installed on one side of the top frame (31), and a drive shaft (43) is rotatably connected inside the side frame (41). A second drive gear (42) meshing with the first drive gear (35) is fixedly installed on the top of the drive shaft (43). A mounting shaft (46) is rotatably connected to the bottom of the side frame (41), and a worm gear (47) is fixedly installed in the middle of the mounting shaft (46). A worm (48) meshing with the worm gear (47) is fixedly installed on the bottom of the drive shaft (43). A rotating frame (44) is fixedly installed at both ends of the mounting shaft (46), and a rotating frame (44) is rotatably connected to equally spaced actuating wheels (45) via pins.

9. A frost-resistant river channel dam for water conservancy projects according to claim 1, characterized in that, The inner wall of the gate slot (11) is fixedly installed with a sealing gasket (5), and the outer walls of both ends of the gate plate (2) are in contact with the inner wall of the sealing gasket (5).

10. A frost-resistant river channel dam for water conservancy projects according to claim 2, characterized in that, The antifreeze plate (7) is formed by fixing and bonding an aluminum alloy panel (72) and a heat insulation layer (71), and the heat insulation layer (71) is a polyurethane heat insulation layer, which is set on the side facing the gate plate (2).

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