Water gate

Abstract

The invention relates to a water gate which comprises a gate body, a supporting beam, a wharf boat and a rotating shaft, the rotating shaft can be horizontally and rotatably arranged on the shore, the wharf boat floats on the water area on the shore, the two ends of the supporting beam are fixed to the rotating shaft and the wharf boat respectively, and the rotating shaft can drive the supporting beam and the wharf boat to rotate along the water surface when rotating. The cross section of the gate body is designed to be arched, and the gate body is installed on the supporting beam in a sliding mode. The water gate has three working modes, namely a non-water-retaining mode, an upstream water-retaining mode and a downstream water-retaining mode; in the non-water-retaining mode, the supporting beam rotates to the direction parallel to the river; in the upstream water retaining mode, the supporting beam rotates to the direction perpendicular to the river, and the arched convex face of the gate body slides to the upstream direction of the river. In the downstream water retaining mode, the supporting beam rotates to the direction perpendicular to the river, and the arched convex face of the gate body slides to the downstream direction of the river. The invention has the characteristics of smooth opening and closing, flexible arrangement, excellent wind resistance and the like.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a sluice gate. Background Technology

[0002] Sluice gates are key flood control engineering facilities built in estuary areas. Their main functions are to block storm surges, prevent seawater intrusion, store freshwater, and accommodate flood discharge, drainage, and navigation needs. Traditional sluice gates generally use flat gates or arched gate structures, such as vertical gates, miter gates, and flap gates. While these gate types are technically mature, they still have significant limitations:

[0003] 1) Traditional gates, such as planar gates, are simple to manufacture and reliable in operation, but they are heavy, require high opening and closing forces, and have poor hydraulic conditions in the gate slot, limiting their application in high-flow-rate scenarios. In addition, existing gates mostly rely on electric or mechanical drives, with a single opening and closing method, and are insufficient in emergency response capabilities to sudden floods or power outages.

[0004] 2) As an important facility for port operations and ship berthing, pontoons are often located in the waters adjacent to lock gates. The fixed piers and heavy gates of traditional locks restrict the utilization of waterway space, leading to interference between pontoon berths and lock operation: on the one hand, the opening and closing of the locks occupies channel width, affecting ship navigation efficiency; on the other hand, the pontoon anchoring system may conflict with the lock foundation, hindering the optimal arrangement of both. Especially in ultra-long span waterways (such as 400-500 meters), the underwater piers further compress navigation space, exacerbating the conflict between shipping and flood control.

[0005] 3) The construction of sluice gates must pay close attention to the impact on the ecological environment (such as tidal disturbance and fish migration) and the flexibility of operation and maintenance. Traditional gate structures are bulky, and maintenance requires interruption of river flow or navigation, which is costly and time-consuming. Summary of the Invention

[0006] The purpose of this invention is to provide a sluice gate that can at least solve one of the problems of existing sluice gates, such as a single opening and closing method, bulky structure, and monotonous architectural design.

[0007] To achieve the above objectives, the present invention provides a sluice gate, comprising a gate body, a support beam, a pontoon, and a rotating shaft. The rotating shaft is horizontally rotatable and mounted on the shore. The pontoon floats on the water near the shore. The two ends of the support beam are respectively fixed to the rotating shaft and the pontoon. When the rotating shaft rotates, it can drive the support beam and the pontoon to rotate along the water surface. The gate body has an arched cross-section and is slidably mounted on the support beam.

[0008] The sluice gate has three operating modes: non-water-blocking mode, upstream water-blocking mode, and downstream water-blocking mode; among them...

[0009] In the non-water-blocking mode, the support beam rotates to a direction parallel to the river;

[0010] In the upstream water-blocking mode, the support beam rotates to a direction perpendicular to the river, and the arched convex surface of the gate body slides to face the upstream direction of the river;

[0011] In the downstream water-blocking mode, the support beam rotates to a direction perpendicular to the river, and the arched convex surface of the gate body slides to face the downstream direction of the river.

[0012] Optionally, the cross-section of the support beam is spindle-shaped.

[0013] Optionally, the upper surface of the gate body may be a cylindrical surface, a hyperboloid surface, or a folded surface along the axial direction.

[0014] Optionally, the support surface of the support beam is provided with a plurality of arc-shaped racks, and the gate body is provided with a plurality of gears that mesh with the arc-shaped racks for transmission; or, the gate body is provided with a plurality of arc-shaped racks, and the support surface of the support beam is provided with a plurality of gears that mesh with the arc-shaped racks for transmission.

[0015] Optionally, the arc-shaped racks are multiple and evenly distributed along the axial direction of the support beam or the gate body.

[0016] Optionally, the arc-shaped rack is composed of several segmented racks spliced ​​together.

[0017] Optionally, the gear may be hydraulically driven or electrically driven.

[0018] Optionally, the rotating shaft can be hydraulically driven or electrically driven.

[0019] Optionally, there are multiple barges, which are evenly arranged along the axial direction of the support beam.

[0020] Optionally, a receiving trough for accommodating the barge is provided on the shore.

[0021] The sluice gate provided by the present invention has at least one of the following beneficial effects:

[0022] 1) It can switch between different working modes as needed, featuring bidirectional water blocking capabilities. It can block water flow in different directions, ensuring the daily smooth flow of the river while also dealing with floods from inland areas and tidal surges from the ocean, achieving "three uses in one gate" with significant comprehensive benefits. This flexible switching mode is of great significance for ensuring flood control, water supply, and ecological security in coastal and tidal river sections.

[0023] 2) The cross-section of the gate body adopts an arched design, which can reduce the weight of the gate and reduce material costs. In addition, the gate shape can be selected in the form of cylindrical surface, hyperboloid surface or folded surface according to the landscape requirements to enhance the architectural effect.

[0024] 3) By employing a gear and rack transmission structure to drive the gate body to slide on the support beam, it has a strong load-bearing capacity, accurate transmission ratio, and smooth operation. It can reliably drive and position heavy-duty gates and can operate stably for a long time with proper maintenance.

[0025] 4) Different barge layout schemes can be designed according to engineering needs and operation and maintenance requirements. The optimal scheme can be determined through comparative analysis. The number of barges can be adjusted according to actual needs to ensure layout flexibility and structural optimization space.

[0026] 5) This sluice gate features smooth opening and closing, flexible layout, and excellent wind resistance, making it suitable for tide control, drainage, and landscape water conservancy projects in coastal areas. Attached Figure Description

[0027] Those skilled in the art will understand that the accompanying drawings are provided to better understand the invention and do not constitute any limitation on the scope of the invention. Wherein:

[0028] Figure 1 This is an overall schematic diagram of the sluice gate provided by the present invention;

[0029] Figure 2 A side view of the sluice gate provided by the present invention;

[0030] Figure 3 This is a schematic diagram of the upstream water-blocking mode of the sluice gate provided by the present invention;

[0031] Figure 4 This is a side view of the sluice gate provided by the present invention in the upstream water-blocking mode;

[0032] Figure 5 This is a schematic diagram of the sluice gate in non-water-blocking mode provided by the present invention;

[0033] Figure 6 This is a side view of the sluice gate provided by the present invention in non-water-blocking mode;

[0034] Figure 7 This is a schematic diagram of the downstream water-blocking mode of the sluice gate provided by the present invention;

[0035] Figure 8 This is a side view of the sluice gate provided by the present invention in the downstream water-blocking mode;

[0036] Figure 9 This is a schematic diagram of the gear rack provided by the present invention.

[0037] In the attached image:

[0038] 1-Gate body; 2-Support beam; 3-Boom; 4-Rotating shaft; 5-Arched rack; 6-Gear; 7-Drive gear. Detailed Implementation

[0039] To make the objectives, advantages, and features of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this invention. Any modifications to the structure, changes in proportions, or adjustments to the size, if they are the same as or similar to the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0040] As used herein, the singular forms “a,” “an,” and “the” include plural objects unless otherwise expressly indicated. As used herein, the term “or” is generally used to include “and / or” unless otherwise expressly indicated. As used herein, the term “a number” is generally used to include “at least one” unless otherwise expressly indicated. As used herein, the term “at least two” is generally used to include “two or more” unless otherwise expressly indicated. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Please refer to Figures 1-8This embodiment provides a sluice gate, including a gate body 1, a support beam 2, a pontoon 3, and a rotating shaft 4. The rotating shaft 4 is horizontally rotatable and is installed on the shore. The pontoon 3 floats on the water near the shore. The two ends of the support beam 2 are fixed to the rotating shaft 4 and the pontoon 3, respectively. When the rotating shaft 4 rotates, it can drive the support beam 2 and the pontoon 3 to rotate along the water surface. The gate body 1 has an arched cross-section and is slidably installed on the support beam 2.

[0043] The sluice gate has three operating modes: non-water-blocking mode, upstream water-blocking mode, and downstream water-blocking mode; among them,

[0044] In non-water-blocking mode, support beam 2 rotates to a direction parallel to the river;

[0045] In the upstream water-blocking mode, the support beam 2 rotates to a direction perpendicular to the river, and the arched convex surface of the gate body 1 slides to face the upstream direction of the river;

[0046] In the downstream water-blocking mode, the support beam 2 rotates to a direction perpendicular to the river, and the arched convex surface of the gate body 1 slides to face the downstream direction of the river.

[0047] The sluice gate provided in this embodiment has the characteristic of bidirectional water blocking, and can block water flow in different directions as needed. For example, during the non-flood season or when water blocking is not required, the sluice gate does not need to work, so it can be switched to a non-water blocking mode. By driving the rotating shaft 4 to rotate, the support beam 2, the pontoon 3, and the gate body 1 on the support beam 2 are rotated as a whole to a direction parallel to the river. Figures 5-6 As shown. In this mode, the arched convex surface of the gate body 1 slides to a vertically upward direction, minimizing the gate structure's occupation of the water passage cross-section. This minimizes obstruction to water flow and effectively maintains the natural flow of the river, ensuring smooth navigation and fish migration. It is ideal for use during non-flood seasons or when water damming is not required. Simultaneously, it facilitates inspection and maintenance, providing a window of opportunity for inspection, maintenance, and replacement of the gate body 1, supporting structure, and water-stopping components.

[0048] When heavy rains, snowmelt, or other factors cause abnormal rises in inland river levels, it is necessary to close the sluice gates to prevent floodwaters from continuing to flow downstream and to protect downstream safety. In this situation, the upstream water-blocking mode can be switched. By driving the rotating shaft 4 to rotate, the support beam 2, the pontoon 3, and the gate body 1 on the support beam 2 are rotated to a direction perpendicular to the river, and the arched convex surface of the gate body 1 is driven to slide towards the upstream direction of the river. For example... Figures 3-4 As shown, the core objective of this model is flood control. When the arched convex surface faces upstream ( Figures 3-4 When the floodgate is on the right side (in the middle), it can effectively block floodwaters from inland rivers, preventing them from flowing downstream. Figures 3-4The arched structure (left side) releases water, protecting downstream cities, farmland, and the safety of people's lives and property. Furthermore, when subjected to external pressure from the convex surface, the arched structure can convert it into compressive stress along the arch shell, resulting in high material utilization efficiency, high structural rigidity, and good stability. Support beam 2 is perpendicular to the river, providing stable support for the gate.

[0049] When storm surges or spring tides occur and ocean levels may exceed inland river levels, it is necessary to close the gates to prevent saltwater from flowing upstream, thus avoiding salinization of inland river water, soil salinization, and ecological disasters. In this case, the gate can be switched to downstream blocking mode. By driving the rotating shaft 4 to rotate, the support beam 2, the pontoon 3, and the gate body 1 on the support beam 2 are rotated to a direction perpendicular to the river, and the arched convex surface of the gate body 1 is driven to slide towards the downstream direction of the river. Figures 7-8 (Left side of the middle). This mode is mainly used for flood prevention. When storm surges or spring tides cause the seawater level to be higher than the inland river level, the gate can be reliably closed to prevent seawater backflow from causing salinization of inland river water and soil salinization along the coast, protect freshwater aquatic organisms, and ensure the safety of agricultural irrigation, industrial production and drinking water sources.

[0050] This design makes the sluice gate a highly flexible and efficient water conservancy facility. It can ensure the daily smooth flow of waterways while also dealing with floods from inland areas and tidal surges from the ocean, achieving "three uses in one gate" and resulting in significant comprehensive benefits. This flexible switching mode is of great significance for ensuring flood control, water supply, and ecological security in coastal and tidal river sections.

[0051] In this embodiment, the rotating shaft 4 is set on the shore, which can serve as a fulcrum for the support beam 2 and also drive the support beam 2 to rotate. It can be driven by hydraulic or electric motor as needed, and this embodiment does not limit this.

[0052] In this embodiment, the cross-section of the support beam 2 is spindle-shaped, and the cross-section of the gate body 1 is arch-shaped (crescent-shaped) to reduce the weight of the gate and lower material costs. In the non-water-blocking mode, the support beam 2 and the gate body 1 are also spindle-shaped as a whole.

[0053] Preferably, the upper surface of the gate body 1 is cylindrical, hyperboloid, or folded along the axial direction. Modern water conservancy projects, especially sluice gates in cities, are often required to be a scenic feature. Arched gates are not limited to a single curve; they can be selected in various forms, such as cylindrical (classic and stable), hyperboloid (modern and smooth), or folded (strong and powerful), to suit different aesthetic styles and environmental atmospheres, depending on the overall landscape design requirements.

[0054] Preferred, such as Figure 9As shown, several arc-shaped racks 5 are provided on the support surface of the support beam 2, and several gears 6 are provided on the gate body 1 to mesh with the arc-shaped racks 5 for transmission; or, several arc-shaped racks 5 are provided on the gate body 1, and several gears 6 are provided on the support surface of the support beam 2 to mesh with the arc-shaped racks 5 for transmission. The use of a rack and pinion system for transmission has the following advantages:

[0055] 1) Since the gate body 1 needs to withstand huge water pressure (including upstream floods and downstream tides), and the gear and rack transmission has the characteristics of strong load-bearing capacity, it can reliably drive and position heavy gates.

[0056] 2) Extremely high positional accuracy is required when the gate is closed to ensure effective water sealing. The gear and rack transmission ratio is accurate and the operation is smooth, which can achieve precise linear motion positioning, which is crucial for preventing leakage.

[0057] 3) Gear and rack transmissions can operate stably for a long time with proper maintenance, have a long service life, work smoothly and have high reliability.

[0058] like Figure 9 As shown, in this embodiment, the gate body 1 is provided with several arc-shaped racks 5, and the support surface of the support beam 2 is provided with several gears 6 that mesh with the arc-shaped racks 5 for transmission. The gears 6, as driving members, are fixed on the support beam 2, and a drive gear 7 is configured to drive the gears. The drive gear 7 can be rotated by a motor or hydraulic drive. The arc-shaped racks 5, as driven members, are installed on the gate body 1. When the gears 6 rotate, they generate a tangential force along the arc-shaped trajectory of the racks through meshing with the arc-shaped racks 5. This force acts directly on the gate body 1, thereby pushing the gate body 1 to slide arc-shaped around the support beam 2 along the vertical plane.

[0059] Preferably, there are multiple gears 6, which are evenly distributed along the arc surface of the arc-shaped rack 5 to ensure the smooth operation of the sluice gate and improve its reliability.

[0060] Preferably, there are multiple arc-shaped racks 5, evenly distributed along the axial direction of the support beam 2 or the gate body 1. That is, when several arc-shaped racks 5 are installed on the support beam 2, they can be evenly distributed along the axial direction of the support beam 2; when several arc-shaped racks 5 are installed on the gate body 1, they can be evenly distributed along the axial direction of the gate body 1. This design enables uniform load distribution, improves transmission reliability, and facilitates high-precision positioning control of the gate body 1.

[0061] Preferably, for wide-orifice gates, the length of a single rack may not be sufficient. The arc-shaped rack 5 can be manufactured in sections and spliced ​​on-site to achieve the required length, which is a mature and reliable technology.

[0062] Preferably, multiple barges 3 are evenly arranged along the axial direction of the supporting beam 2. Different barge 3 arrangement schemes can be designed according to engineering needs and operation and maintenance requirements. The optimal scheme can be determined through comparative analysis. The number of barges 3 can be adjusted according to actual needs to ensure layout flexibility and structural optimization space.

[0063] In this embodiment, the pontoon 3 is a non-powered pontoon. A receiving trough for accommodating the pontoon 3 is provided on the shore. The number of receiving troughs is the same as the number of pontoons 3. When it is necessary to switch to the non-water-blocking mode, the pontoon 3 rotates with the support beam 2. When the pontoon 3 rotates to a direction parallel to the river, it is placed in the corresponding receiving trough.

[0064] Preferably, when switching to upstream or downstream water blocking mode, in order to keep the unpowered pontoon 3 stably in the predetermined water area, anchors can be used to fix the pontoon 3. The number and arrangement of anchors required are determined according to the size of the pontoon 3 and the local hydrological and meteorological conditions (wind, current, wave height). This invention does not impose any restrictions on this.

[0065] In this embodiment, when the river width is within a specific range, the length of the sluice gate can be basically the same as the river width. In this case, only one sluice gate needs to be set up. When the river mouth is wide, or when it is necessary to ensure two-way multi-line navigation, or to reduce the interference of the piers in the water on the river, a sluice gate can also be set up symmetrically on opposite banks of the river, similar to a double gate. This invention does not impose any restrictions on this.

[0066] In summary, this invention provides a sluice gate that can switch between different operating modes as needed. It features bidirectional water blocking, capable of obstructing water flow in different directions. This ensures the daily unobstructed flow of waterways while also addressing floods from inland areas and tidal surges from the ocean, achieving "three uses in one gate" with significant comprehensive benefits. This flexible switching mode is of great importance for ensuring flood control, water supply, and ecological security in coastal and tidal river sections.

[0067] Furthermore, it should be understood that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the technical solutions of the present invention based on the disclosed technical content, or equivalent embodiments can be modified accordingly, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the scope of protection of the present invention.

Claims

1. A sluice gate, characterized in that, The gate includes a gate body, a support beam, a pontoon, and a rotating shaft. The rotating shaft is horizontally rotatable and is mounted on the shore. The pontoon floats on the water near the shore. The two ends of the support beam are fixed to the rotating shaft and the pontoon, respectively. When the rotating shaft rotates, it can drive the support beam and the pontoon to rotate along the water surface. The gate body has an arched cross-section and is slidably mounted on the support beam. The sluice gate has three operating modes: non-water-blocking mode, upstream water-blocking mode, and downstream water-blocking mode; among them... In the non-water-blocking mode, the support beam rotates to a direction parallel to the river; In the upstream water-blocking mode, the support beam rotates to a direction perpendicular to the river, and the arched convex surface of the gate body slides to face the upstream direction of the river; In the downstream water-blocking mode, the support beam rotates to a direction perpendicular to the river, and the arched convex surface of the gate body slides to face the downstream direction of the river.

2. The sluice gate according to claim 1, characterized in that, The cross-section of the supporting beam is spindle-shaped.

3. The sluice gate according to claim 1, characterized in that, The upper surface of the gate body is cylindrical, hyperboloid, or folded along the axial direction.

4. The sluice gate according to claim 1, characterized in that, The supporting beam has several arc-shaped racks on its supporting surface, and the gate body has several gears that mesh with the arc-shaped racks for transmission; or, the gate body has several arc-shaped racks, and the supporting beam has several gears that mesh with the arc-shaped racks for transmission.

5. The sluice gate according to claim 4, characterized in that, The arc-shaped rack consists of multiple racks, which are evenly distributed along the axial direction of the support beam or the gate body.

6. The sluice gate according to claim 4, characterized in that, The arc-shaped rack is composed of several segmented racks joined together.

7. The sluice gate according to claim 4, characterized in that, The gear is driven by hydraulics or an electric motor.

8. The sluice gate according to claim 1, characterized in that, The rotating shaft is driven by hydraulics or by an electric motor.

9. The sluice gate according to claim 1, characterized in that, The barges are multiple in number and are evenly arranged along the axial direction of the supporting beam.

10. The sluice gate according to claim 1, characterized in that, A sump is provided on the shore to accommodate the barge.

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