A gate device for hydraulic engineering

Abstract

The utility model discloses a gate equipment for hydraulic engineering, including gate and the gate pier that cooperates with gate. The gate includes gate leaf structure, lifting lug structure, cantilever roller and water stop device, and the lifting lug structure is established at the back of gate leaf structure bottom, and the cantilever roller is arranged in the side beam both sides of gate leaf structure, and the water stop device is attached on the gate. The gate pier is equipped with a door groove that cooperates with cantilever roller, and the main rail straight rail and the reverse rail straight rail that are matched with cantilever roller respectively. The upper portion of connecting reverse rail straight rail is further equipped with reverse rail arc rail, and the vertical direction height of reverse rail arc rail is lower than the main rail straight rail. The utility model discloses the forward inclination lift-lie type gate that leans down to the upstream, and the following advantages have compared to lift-lie type gate, the steel wire rope and the movable pulley of gate hoist equipment are not in the water, and the life is long. The gate water stop device is simple, and the rubber friction is small, and the hoist machine capacity is small, and the high altitude falling object is not produced. The gate unilateral multiple support arrangement is arranged, and the water pressure of bearing is not limited, and the large area orifice can be closed.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a gate device used in water conservancy projects. Background Technology

[0002] Currently, the most widely used gates in water conservancy projects are vertical lift-type planar gates and lift-and-reverse gates. A vertical lift-type planar gate is a type of planar gate; when closed, it stands upright in the orifice. After being lifted and opened, the gate leaf moves along a vertical track and finally stands upright above the orifice. A lift-and-reverse gate is also a type of planar gate; when closed, it stands upright in the orifice. After being lifted and opened, the gate leaf moves along a rearward-extending track and finally lies horizontally above the rear of the orifice. Both vertical lift-type planar gates and lift-and-reverse gates have some inherent problems.

[0003] The vertical lift gate requires a very high gate chamber support column to lift it away from the orifice, which is not conducive to earthquake resistance. Manual assistance is required when the gate enters the gate slot.

[0004] The pulleys and wire ropes of the lifting and horizontal gate opening and closing equipment are prone to corrosion and have a short lifespan when submerged in water; the lubricating oil immersed in water also affects water quality. In addition, the water-stopping device of the lifting and horizontal gate is complex, has high rubber friction resistance, a large opening and closing machine capacity, and is prone to falling objects from height.

[0005] When lying flat, the track and lock chamber are long. Only two supports can be arranged on each side of the gate, making it impossible to seal large openings. The gate is not large in scale, and the waterway and vessels passing through it are also relatively small. During the tilting and lowering process, water flows up and down through the gate, resulting in uneven operation, significant gate vibration, and the water stop mechanism is prone to trapping debris, causing lateral leaks. Maintenance and repair are also inconvenient. Utility Model Content

[0006] In view of the defects of the existing technology, the inventor of this utility model has finally created a utility model with practical value after continuous research, design, repeated trials and improvements.

[0007] Therefore, the purpose of this utility model is to overcome the shortcomings of existing technologies and propose a method for water conservancy.

[0008] The gate equipment in this project is diverse in type, simple, and compatible with both lift-and-reverse gates. It is suitable for large-scale navigable waterways and vessels. The gates operate smoothly with minimal vibration and are easy to maintain. These gates are used in water conservancy projects.

[0009] The purpose of this utility model is to overcome the defects of the existing technology and propose a gate device for water conservancy projects, which requires low support columns, is conducive to earthquake resistance, does not require human assistance when the gate enters the gate slot, and the steel wire rope and moving pulley of the gate opening and closing device are not in the water, are not easy to rust, and have a long service life.

[0010] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a gate device for water conservancy projects, which features a simple gate water-stopping device, low rubber friction resistance, small hoist capacity, and no falling objects from heights. When laid flat, the track and gate chamber are short, and the gate is arranged with multiple supports on one side, closing a large area of ​​the orifice.

[0011] To achieve the above objectives, this utility model provides a gate device for water conservancy projects, wherein the gate device is a forward-tilting horizontal type; it includes:

[0012] Gate; and

[0013] Gate piers that cooperate with the gate;

[0014] The gate includes: a gate leaf structure, a lifting lug structure, a cantilever roller, and a water-stopping device;

[0015] The gate leaf structure has multiple crossbeams, longitudinal beams and side beams arranged in a cross pattern. The lifting lug structure is located at the bottom back of the gate leaf structure and downstream of the water flow direction of the gate slot and is connected to the hoist. The lifting center of the lifting lug structure is offset from the center of gravity of the gate, so that the lifting lug structure will tilt and fall upstream after being subjected to force.

[0016] The cantilever rollers are multiple and protrude from both sides of the side beam of the gate leaf structure; the water-stopping device is attached to the gate.

[0017] The gate pier is provided with a gate slot that mates with the cantilever roller. The gate slot contains a main rail and a reverse rail that are respectively matched with the cantilever roller. The main rail is inclinedly arranged at the bottom of the gate pier and is located on one side of the gate slot, downstream in the direction of water flow. The reverse rail is inclinedly arranged at the bottom of the gate pier and is located on the other side of the gate slot, upstream in the direction of water flow. A reverse arc rail is also provided above the reverse rail, and the vertical height of the reverse arc rail is lower than that of the main rail.

[0018] According to one embodiment of the present invention, the main rail and the reverse rail are not parallel in the direction of water flow, and the distance between the main rail and the reverse rail in the direction of water flow is greater than the diameter of the cantilever roller.

[0019] The angle between the main rail and the counter-rail is either obtuse or acute, depending on whether they are in the direction of water flow or on the horizontal plane.

[0020] According to one embodiment of the present invention, the cantilever rollers on one side of the gate include at least two.

[0021] According to one embodiment of the present invention, the water-stopping device is an L-shaped rubber that is attached to the panel of the gate.

[0022] According to one embodiment of the present invention, the apex of the reverse rail is subjected to force on the upstream side of the cantilever roller when the gate is lying down, and there is no connecting track at the apex of the reverse rail.

[0023] According to one embodiment of the present invention, when the gate is laid down, the center point of the radius of the anti-rail arc is ahead of the axis of the cantilever roller, and the axis of the cantilever roller is ahead of the center of gravity of the gate.

[0024] According to one embodiment of the present invention, the gate pier further includes a limiting body; the limiting body is disposed between the two cantilever rollers, or the limiting body is disposed near the end of the track of the reverse rail, and the limiting body is not in contact with the movement trajectory of the cantilever rollers.

[0025] According to one embodiment of the present invention, the bottom of the door leaf structure is inclined upward.

[0026] According to one embodiment of the present invention, it further includes: a hydraulic base plate;

[0027] The hydraulic foundation plate is set at the bottom of the gate pier;

[0028] The gate pier also includes: a bottom straight rail;

[0029] The bottom straight rail is set inside the hydraulic foundation slab. The surface of the bottom straight rail that contacts the gate smoothly transitions with the hydraulic foundation slab. The bottom straight rail has no horizontal angle requirement. The angle between the bottom straight rail and the horizontal plane is an obtuse angle or an acute angle. The bottom straight rail is set according to the contour of the hydraulic foundation slab. The specific contour of the hydraulic foundation slab is set horizontally upward, horizontally downward, or curved.

[0030] This utility model provides a gate device for water conservancy projects. By adopting a forward-tilting, horizontally tilting gate that tilts upstream, it inherits all the advantages of horizontally tilting gates and overcomes the following disadvantages of horizontally tilting gates:

[0031] 1. The moving pulleys and wire ropes of the horizontal gate opening and closing equipment are prone to corrosion, have a short service life, and are susceptible to water quality problems due to water immersion of lubricating oil.

[0032] 2. The water-stopping device of the horizontal gate is complex, the rubber friction is large, the hoist capacity is large, and it can cause objects to fall from heights.

[0033] 3. When laid flat, the track and gate chamber are long, and the gate can only be supported by two supports on one side, which cannot close a large area of ​​the opening.

[0034] 4. The gate is small in size, the waterway is small, and the vessels passing through it are small. During the tilting and lowering process, the gate's vertical water flow is not smooth. The gate vibrates significantly, and the water stop is prone to clogging, causing lateral leaks. Maintenance and repair are also inconvenient.

[0035] Compared with the prior art described above, the present invention has the following advantages:

[0036] 1. This utility model has the advantages of low frame columns, which is conducive to earthquake resistance, and no human assistance is required when the gate enters the gate slot.

[0037] 2. The steel wire rope and lifting pulley of the gate opening and closing device of this utility model are not in the water, the pulley and steel wire rope are not easy to rust, maintenance is convenient, and the service life is long.

[0038] 3. The gate water-stopping device of this utility model is simpler. The L-shaped rubber is directly installed on the panel. The rubber friction resistance is small, the water-stopping friction resistance is small, the opening and closing machine capacity is small, and the gate panel faces downward, so there is no high-altitude falling object.

[0039] 4. This utility model operates smoothly with minimal gate vibration. The main components of this utility model are exposed, facilitating maintenance and repair.

[0040] 5. This utility model adopts a single-sided arrangement with more than two cantilever rollers, which enables it to close large-area openings, making it larger in scale, allowing for deeper and wider navigable waterways and larger navigable vessels.

[0041] 6. This utility model combines the advantages of both planar gates and horizontal gates. It has a wide range of applications, with a relatively small vertical height in the track's arc section, unaffected by the distance from the design water level to the gate top. The gate and its equipment layout does not follow a horizontal and vertical arrangement concept; it can be arranged at an angle, reducing the excavation volume required for sloping layouts. It can close large-area openings, allowing for larger scale, deeper and wider navigable waterways, and larger vessels.

[0042] 7. This utility model has no limitation on the number of cantilever rollers, allowing for the use of more and smaller cantilever rollers. When laid flat, the effective support spacing is small, the track is shorter, and the gate chamber length is shorter. Water always flows through the lower part of the gate during opening, resulting in a better flow pattern from the pressure gradient generated by the overturning. The hoist position is rationally set, with a smaller angle between the center line of the lifting point and the vertical plane.

[0043] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the assembly structure of a forward-tilting horizontal gate according to an embodiment of the present utility model;

[0046] Figure 2 This is a schematic diagram of another forward-tilting horizontal gate assembly structure according to an embodiment of the present utility model;

[0047] Figure 3 This is a front view of the backwater side of a forward-tilting horizontal gate according to an embodiment of the present invention;

[0048] Figure 4 This is a front view of the water-facing side of a forward-tilting horizontal gate according to an embodiment of the present invention;

[0049] Figure 5 This is provided according to one embodiment of the present utility model. Figure 3 Middle side view;

[0050] Figure 6 This is provided according to one embodiment of the present utility model. Figure 3 A cross-sectional view along the BB direction;

[0051] Figure 7 This is provided according to one embodiment of the present utility model. Figure 3 A cross-sectional view along the AA direction;

[0052] Figure 8 This is provided according to one embodiment of the present utility model. Figure 7 A magnified view of part C.

[0053] Figure label:

[0054] 100-Gate equipment;

[0055] 11-Gate; 111-Gate leaf structure; 112-Lifting lug structure; 113-Cantilever roller; 114-Water-stopping device; 115-Gate center of gravity;

[0056] 12-Gate pier; 121-Gate slot; 122-Main rail straight rail; 123-Reverse rail straight rail; 124-Reverse rail curved rail; 125-Bottom rail straight rail;

[0057] 13-Limiting body;

[0058] 14-Hydraulic foundation slab. Detailed Implementation

[0059] The embodiments of this utility model are described in detail below. Examples of the 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 intended to explain this utility model, and should not be construed as limiting this utility model. Therefore, this utility model proposes a gate device for water conservancy projects.

[0060] Specifically, the following describes an embodiment of the present invention, a gate device for a water conservancy project, with reference to the accompanying drawings.

[0061] refer to Figures 1-8 This embodiment provides a gate device for water conservancy projects. The gate device 100 is a forward-tilting horizontal type and mainly includes a gate 11 and a gate pier 12 that cooperates with the gate 11.

[0062] The gate 11 includes: a gate leaf structure 111, a lifting lug structure 112, a cantilever roller 113, and a water-stopping device 114.

[0063] The gate leaf structure 111 has multiple crossbeams, longitudinal beams and side beams arranged in a cross pattern. The lifting lug structure 112 is located at the bottom of the back side of the gate leaf structure 111 and is connected to the hoist. The lifting center of the lifting lug structure 112 is offset from the center of gravity 115 of the gate 11, so that the lifting lug structure 112 will tilt and fall in the upstream direction after being subjected to force.

[0064] The cantilever rollers 113 are multiple and protrude from both sides of the side beam of the gate leaf structure 111. The water-stopping device 114 is attached to the gate 11.

[0065] The cantilever roller 113 can roll within the gate slot 121, allowing the gate 11 to tilt and lie down upstream to the maintenance position. When the gate 11 is in operation, it is similar to a conventional planar gate 11 that stands vertically to block water; when the gate 11 is not in operation, the bottom lifting lug structure 112 downstream of the gate 11 pulls the gate 11 to tilt and lie down upstream along the track.

[0066] The gate 11 and its matching embedded parts are used in reservoirs, hydropower stations, rivers, irrigation areas and other scenarios to perform tasks such as water blocking and flood discharge. The current tilting horizontal gate 11 stands upright to block water when closed. When opening the gate, it first rises vertically for a while, and then rotates upstream while rising, until the gate 11 is fully open and lies flat on top of the gate pier 12, almost becoming horizontal.

[0067] This utility model provides a gate device for water conservancy projects. By adopting a forward-tilting, horizontally tilting gate 11 that tilts upstream, it inherits all the advantages of the horizontally tilting gate 11 while overcoming the following disadvantages: The moving pulleys and wire ropes of the horizontally tilting gate 11 are prone to corrosion and have a short lifespan when submerged in water; the lubricating oil in the water affects water quality. The water-stopping device 114 of the horizontally tilting gate 11 is complex, has high rubber friction resistance, requires a large opening capacity, and is prone to falling objects from heights. When lying flat, the track and gate chamber are long. The gate 11 can only be supported by two supports on one side, which cannot close large openings. The gate 11 is small in scale, suitable for navigable waterways and vessels. During the tilting process, the gate 11 does not move smoothly up and down, resulting in significant vibration. The water-stopping device is prone to trapping debris, causing lateral leakage points, and is inconvenient for maintenance.

[0068] Meanwhile, this utility model provides a gate device for water conservancy projects that combines the advantages of both planar gates 11 and horizontal gates 11. It has a wide range of applications, with a relatively small vertical height in the track arc section, unaffected by the distance from the design water level to the gate top. The gate 11 and its equipment layout do not follow a horizontal and vertical arrangement concept; they can be arranged at an angle, reducing the excavation volume required for sloping layouts. It can close large-area orifices, allowing for larger scale, deeper and wider navigable waterways, and larger navigable vessels. The water-stopping device 114 is simpler; it is an L-shaped rubber device directly installed on the gate 11 panel, resulting in low water-stopping friction and a small opening / closing capacity. The gate 11 panel faces downwards, preventing falling objects from heights. Major components are exposed, facilitating maintenance. The lifting pulleys and wire ropes are not submerged in water, making them less prone to rust and easier to maintain; there is no limitation on the number of cantilever rollers 113, allowing for the use of more and smaller cantilever rollers 113. When lying flat, the effective support spacing is small, the track is shorter, and the gate chamber length is shorter. During the opening of gate 11, water always flows through the lower part, resulting in a better flow pattern from the pressure gradient generated by the overturning. The hoist position is rationally set, with a smaller angle between the center line of the lifting point and the vertical plane.

[0069] In one embodiment of this utility model, when the gate 11 is lowered, the apex of the reverse track 124 is subjected to force on the upstream side of the cantilever roller 113, and there is no connecting track at the apex of the reverse track 124. It should be noted that the fulcrum of the cantilever roller 113 is not at the highest point of the reverse track 124, and the gate 11 can automatically close under the action of gravity.

[0070] In one embodiment of this utility model, the gate pier 12 includes a limiting body 13; the limiting body 13 is disposed between the two cantilever rollers 113, and the limiting body 13 does not contact the movement trajectory of the cantilever rollers 113. It should be noted that the highest point of the reverse rail 124 on the gate pier 12 is not connected to the track, and the limiting body 13 can be arranged near the end of the track of the reverse rail 124, and is not limited to being disposed between the two cantilever rollers 113.

[0071] The limiting body 13 is a stop that prevents the gate 11 from moving further. It restricts the horizontal movement of the gate 11 under horizontal loads when the gate 11 is lying down due to earthquakes or other adverse factors. The limiting body 13 is a load-bearing structure, and the gap between it and the end of the anti-rail curved rail 124 can be concrete. The outline of the concrete structure must not affect the movement of the cantilever roller 113 on the anti-rail curved rail 124.

[0072] In one embodiment of this utility model, the main rail 122 and the reverse rail 123 do not need to be arranged in parallel. The distance between the main rail 122 and the reverse rail 123 is greater than the diameter of the cantilever roller 113, and the main rail 122 is higher than the reverse rail 123 in the vertical direction. It can be understood that since it is a curved motion, there is no strict restriction on straight lines.

[0073] As mentioned above, the lifting lug structure 112 is located at the bottom of the back of the gate leaf structure 111 and is connected to the hoist. The lifting center of the lifting lug structure 112 is offset from the center of gravity 115 of the gate 11. When the lifting lug structure 112 of the gate 11 is subjected to force, it will tilt and fall in the upstream direction.

[0074] In one embodiment of this utility model, there are multiple cantilever rollers 113, which protrude from both sides of the side beam of the gate leaf structure 111. When the gate 11 is tilted and lying down, there are at least two cantilever rollers 113 on one side of the gate 11. This means that there can also be two, three, four or more cantilever rollers 113 on one side. When multiple cantilever rollers 113 are provided, the diameters of the cantilever rollers 113 can be arranged in different sizes.

[0075] When multiple cantilever rollers 113 are provided, the diameter of the cantilever rollers 113 and the size of the gate groove 121 can be reduced, and the area of ​​the closed opening can be larger.

[0076] In one embodiment of the present invention, the main rail 122 and the reverse rail 123 are arranged either parallel or non-parallel in the direction of water flow, and the distance between the main rail 122 and the reverse rail 123 in the direction of water flow is greater than the diameter of the cantilever roller 113.

[0077] The angle between the main straight rail 122 and the reverse straight rail 123 and the horizontal plane in the direction of water flow is a vertical angle, an obtuse angle, or an acute angle.

[0078] In one embodiment of this utility model, it further includes: a hydraulic base plate 14; the hydraulic base plate 14 is disposed at the bottom of the gate pier 12; the gate pier 12 further includes: a bottom straight rail 125; the bottom straight rail 125 has no horizontal angle requirement, and the angle between the bottom straight rail 125 and the horizontal plane in the water flow direction is a vertical angle, an obtuse angle, or an acute angle, and the bottom straight rail 125 is set according to the contour of the hydraulic base plate 14, specifically the contour setting is horizontally inclined upward, horizontally inclined downward, or arc-shaped. The plane in contact with the bottom straight rail 125 and the bottom sill of the gate 11 does not have to be a horizontal plane; the contact surface can be inclined upward, inclined downward, or arranged on a circular arc.

[0079] In one embodiment of this utility model, the water-stopping device 114 is an L-shaped rubber that is attached to the panel of the gate 11. When the water-stopping device 114 is directly attached to the panel of the gate 11 by the L-shaped rubber, it is tightened by the flat steel plate 114 and bolt assembly. The water-stopping device 114 of this utility model differs from the water-stopping device of the existing lifting and horizontal gate 11 in that the water-stopping device 114 of the existing lifting and horizontal gate 11 must be composed of a panel, a strip rubber, an angle steel, a P-shaped rubber, and a flat steel plate. The two branches of the angle steel are respectively connected to the panel, the strip rubber and the P-shaped rubber, and the flat steel plate, and two rows of bolts are required for connection and tightening.

[0080] To further explain, the water-stopping device 114 is directly fixed to the panel by an L-shaped rubber sheet via a flat steel plate and bolts, serving as both a water-stopping device and a lateral support for the gate 11. The lifting lug structure 112 is located downstream of the gate slot 121 in the direction of water flow and connects to the opening and closing equipment.

[0081] The embedded parts in the gate slot 121 include a main straight rail 122, a reverse straight rail 123, a reverse curved rail 124, and a bottom straight rail 125. The reverse straight rail 122 is inclinedly arranged at the bottom of the gate pier 12 and on one side within the gate slot 121, upstream in the direction of water flow. The reverse curved rail 124 connects to the reverse straight rail 123, with its highest point above the water surface. The downstream side of the highest point of the reverse curved rail 124 is used for support and positioning of the gate 11 when it is finally laid flat. The main straight rail 122 is inclinedly arranged at the bottom of the gate pier 12 and on the other side within the gate slot 121, downstream in the direction of water flow. The main straight rail 122 is vertically higher than the reverse curved rail 124. The bottom straight rail 125 is set inside the hydraulic base plate 14, and the surface of the bottom straight rail 125 that contacts the gate 11 smoothly transitions to the hydraulic base plate 14.

[0082] In one embodiment of the present invention, the bottom of the door leaf structure 111 is inclined upwards. This is to avoid collision with the slope surface where the bottom straight rail 125 is located. At the same time, the door leaf structure 111 does not have lateral support or a lateral support rail that matches the door leaf structure 111.

[0083] In one embodiment of the present invention, when the gate 11 is laid down, in the direction of water flow, the center point of the radius of the anti-rail arc 124 is ahead of the axis of the cantilever roller 113, and the axis of the cantilever roller 113 is ahead of the center of gravity 115 of the gate.

[0084] The working principle of this utility model is as follows: When the tilting horizontal gate 11 is in the closed state, it stands upright to block water. When the gate is opened, it first rises vertically for a while, and then rotates upstream while rising, until the gate 11 is fully open and lies flat on the top of the gate pier 12, which is close to being horizontal.

[0085] When the gate 11 does not need to block water, the gate 11 is in a horizontal position on the gate pier 12, supported by two fulcrums and the hoisting mechanism on one side. At this time, one fulcrum of the gate 11 is supported on the arc-shaped rail surface of the reverse rail 124 by a single-sided cantilever roller 113, and the other fulcrum is supported on the surface of the main rail straight rail 122 by a single-sided bottom cantilever roller 113.

[0086] When it is necessary to close the gate 11, the hoist releases the wire rope, and the lower part of the gate 11 moves downward under the pull of gravity. At the same time, the gate 11 and the cantilever roller 113 supported on the arc surface of the reverse rail 124 move downstream along the arc surface of the reverse rail 124. The entire gate 11 moves downward and rotates clockwise at the same time. During the descent, the gate 11 gradually stands upright. During the descent of the two cantilever rollers 113 on one side of the gate 11, one of the cantilever rollers 113 in contact with the surface of the reverse rail 124 moves to the surface of the reverse rail straight rail 123, and then moves to the surface of the main rail straight rail 122; the other cantilever roller 113 remains in contact with the main rail straight rail 122.

[0087] At this time, the forward-tilting horizontal gate 11 is fully inserted into the gate slot 121 of the reverse rail straight rail 123, which is the same as the conventional flat gate 11 in the gate slot 121.

[0088] Furthermore, the partial opening and complete closing of the forward-tilting horizontal gate 11 for blocking water is similar to that of the conventional flat gate 11 (the movement direction of the forward-tilting horizontal gate 11 during the closing process is the same as the water flow direction, and the gate 11 moves downstream along the water thrust, which is conducive to the closing of the gate 11).

[0089] When the gate 11 changes from the water-blocking state to the upstream horizontal state, the process is reversed.

[0090] The hoist pulls the lifting lug structure 112 at the bottom of the gate 11 via a steel wire rope. The downstream side of the gate 11 is subjected to an upward traction force from the bottom lifting lug structure 112 (i.e., the center of gravity of the gate 115 and the lifting center of the lifting lug structure 112 do not coincide). This traction force generates a torque and an upward pull force on the gate 11, which rotates counterclockwise around the axle center of the cantilever roller 113 at the bottom in the height direction. When the pull force is greater than the combined resistance generated by the water pressure of the gate 11, the gate 11 gradually opens upward along the trajectory line of the gate slot 121. At this time, the gate 11 moves within the gate slot 121 of the reverse straight rail 123 in the same way as a conventional planar gate 11. As the gate 11 moves upward, when the water pressure is insufficient to overcome the counterclockwise rotational torque generated by the traction force and the weight of the gate 11, the gate 11 moves upward while simultaneously rotating around the axle center of the lowest cantilever roller 113 in the height direction. The fulcrum of the other cantilever rollers 113, except those corresponding to the axle, gradually transitions from the surface of the main straight rail 122 to the surface of the reverse straight rail 123 and the surface of the reverse curved rail 124. The gate 11 gradually rotates and lies down from its tilted position upstream until it is completely lying down within the gate pier 12, completing the entire opening process from closing to opening to lying down. The lowest cantilever roller 113 in the height direction remains in contact with the surface of the main straight rail 122 throughout the entire opening process from closing to opening to lying down.

[0091] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0092] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0093] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0094] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0095] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure involved in this utility model is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

[0096] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of the claims of this utility model pending approval.

Claims

1. A gate device (100) for use in water conservancy projects, characterized in that, The gate device (100) is a forward-tilting horizontal type; it mainly includes: Gate (11) and gate pier (12) that cooperates with the gate (11); The gate (11) includes: a gate leaf structure (111), a lifting lug structure (112), a cantilever roller (113), and a water-stopping device (114); The gate leaf structure (111) has multiple crossbeams, longitudinal beams and side beams arranged in a cross pattern. The lifting lug structure (112) is located at the bottom back of the gate leaf structure (111) and downstream of the water flow direction of the gate slot (121) and is connected to the hoist. The lifting center of the lifting lug structure (112) is offset from the center of gravity (115) of the gate (11), so that the lifting lug structure (112) will tilt and fall upstream after being subjected to force. The cantilever rollers (113) are multiple and protrude from both sides of the side beam of the gate leaf structure (111). The cantilever rollers (113) provided on one side of the gate (11) include at least two. The water-stopping device (114) is an L-shaped rubber that is attached to the panel of the gate (11); The gate pier (12) is provided with a gate slot (121) that cooperates with the cantilever roller (113). The gate slot (121) is provided with a main rail straight rail (122) and a reverse rail straight rail (123) that are respectively matched with the cantilever roller (113). The main rail straight rail (122) is inclinedly arranged at the bottom of the gate pier (12) and is located on one side of the gate slot (121) and downstream in the direction of water flow. The reverse rail straight rail (123) is inclinedly arranged at the bottom of the gate pier (12) and is located on the other side of the gate slot (121) and upstream in the direction of water flow. A reverse rail arc rail (124) is also provided above the reverse rail straight rail (123). The vertical height of the reverse rail arc rail (124) is lower than that of the main rail straight rail (122).

2. The gate device for water conservancy projects according to claim 1, characterized in that, The main rail (122) and the reverse rail (123) are not parallel in the direction of water flow, and the distance between the main rail (122) and the reverse rail (123) in the direction of water flow is greater than the diameter of the cantilever roller (113). The angle between the main straight rail (122) and the reverse straight rail (123) and the horizontal plane is an obtuse angle or an acute angle.

3. The gate device for water conservancy projects according to claim 1, characterized in that, The vertex of the reverse rail (124) is subjected to force on the upstream side of the cantilever roller (113) when the gate (11) is lying down, and there is no connecting track at the vertex of the reverse rail (124).

4. The gate device for water conservancy projects according to claim 1, characterized in that, When the gate (11) is laid down, the center point of the radius of the anti-rail arc (124) is ahead of the axis of the cantilever roller (113), and the axis of the cantilever roller (113) is ahead of the center of gravity (115) of the gate.

5. The gate device for water conservancy projects according to claim 1, characterized in that, The gate pier (12) also includes: a limiting body (13); The limiting body (13) is located in the middle of the two cantilever rollers (113), or the limiting body (13) is located at the end of the track near the reverse rail (124), and the limiting body (13) does not contact the movement trajectory of the cantilever rollers (113).

6. The gate device for water conservancy projects according to claim 1, characterized in that, The bottom of the door leaf structure (111) is inclined upward.

7. The gate device for water conservancy projects according to claim 1, characterized in that, Also includes: Hydraulic foundation slab (14); The hydraulic base plate (14) is disposed at the bottom of the gate pier (12); The gate pier (12) also includes: a bottom straight rail (125); The bottom straight rail (125) is set inside the hydraulic base plate (14). The surface of the bottom straight rail (125) that contacts the gate (11) and the hydraulic base plate (14) are smoothly transitioned. The bottom straight rail (125) has an obtuse angle or an acute angle between the water flow direction and the horizontal plane. The bottom straight rail (125) is set according to the outline of the hydraulic base plate (14). The specific outline of the hydraulic base plate (14) is set horizontally upward, horizontally downward, or arc-shaped.

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