Rotary downward-hanging door type tide gate

Abstract

The invention discloses a rotary downward-hanging door type tide gate which comprises a rotary downward-hanging door type gate unit arranged on the left side and / or the right side of a river bank, and the rotary downward-hanging door type gate unit comprises a rotary supporting beam, a wharf boat, a downward-hanging gate and a rotary driving mechanism; when tide blocking is needed, the wharf boat floats on the water surface in a drainage mode, the rotary supporting beam is driven by the rotary driving mechanism to rotate around the spherical hinge structure to the tide blocking position in the center of the river channel, the wharf boat sinks to the river bottom in a water filling mode, the lower hanging gate is put down, and water blocking is achieved. The invention has the advantages of ultra-large span water retaining, safe and reliable structure, controllable gate opening and closing, adaptability to sediment deposition, no influence on river navigation, convenience in construction, operation and maintenance, small influence on the surroundings, economical and reasonable manufacturing cost and the like.

Description

Technical Field

[0001] The invention relates to the technical field of tide gates, and in particular to a rotary bottom-hung door type tide gate. Background Art

[0002] Coastal cities face risks such as rising sea levels and storm surges. Tidal barriers can block seawater invasion during extreme weather such as high tides, storms or hurricanes, reduce the risk of urban floods, and protect the lives and property of the people. The existence of tidal barriers not only protects the economic activities of coastal cities from the impact of extreme weather, but also increases the attractiveness of investment. Cities can better develop commerce, industry, tourism and other fields under the premise of security, and achieve sustainable economic growth.

[0003] With the frequent occurrence of extreme weather and storm surges around the world, the disaster risks faced by my country's estuary areas have become increasingly severe. Improving the tide prevention and disaster reduction capabilities of large and medium-sized cities in estuary areas and ensuring the social and economic development of my country's coastal areas have gradually become an important part of the construction of the national disaster prevention and flood control system. Tide gates play an important role in disaster prevention and reduction in response to extreme climate events, and are particularly suitable for protecting residents and resources in coastal areas. However, as the climate continues to change, the design and use of tide gates also need to be continuously optimized to adapt to higher intensity climate risks.

[0004] The gate type is the core of the research on tide gates. A good gate type needs to meet the following points at the same time: safe and reliable structure, controllable gate opening and closing, adaptable to siltation, no impact on river navigation, convenient construction and operation and maintenance, little impact on the surrounding area, and economical and reasonable cost. The river channel where the tide gate is located is usually an important navigable river channel. In order not to affect the river navigation function during the non-tide blocking period, the net width of the tide gate must meet the navigation needs, and try to avoid setting piers in the river channel to reduce the impact on navigation. This requires the net width of the single hole of the tide gate to be larger. At present, there are only two large tide gates with a single hole net width of more than 300m in the world, namely the Maasland Tide Gate in the Netherlands and the Moses Project in Venice, Italy. Their gate types use flat double-opening curved doors and flip-up doors respectively. The flat double-opening curved door has many advantages such as safe and reliable structure, controllable gate opening and closing, adaptable to siltation, no impact on river navigation, convenient construction and operation and maintenance. Its biggest disadvantage is that it occupies the largest area among all the current gate types. The upturned gate occupies the smallest area among all the current gate types, but it lies underwater for a long time, making gate inspection and maintenance inconvenient, with high construction and operation and maintenance costs, and has a weak ability to adapt to siltation.

[0005] In summary, for the ultra-large span tidal gates with a single hole net width of more than 300m, the two types of gates that have been built currently have certain shortcomings. It is urgent to develop a new type of gate that can retain water in an ultra-large span, has a safe and reliable structure, controllable gate opening and closing, can adapt to siltation, does not affect river navigation, is convenient for construction and operation and maintenance, has little impact on the surrounding areas, and has an economical and reasonable cost.

[0006] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Summary of the invention

[0007] The technical problem to be solved by the present invention is: to address the deficiencies in the prior art and to provide a rotating bottom-mounted gate-type tide-blocking gate that can retain water over a very large span, has a safe and reliable structure, has controllable gate opening and closing, is adaptable to siltation, does not affect river navigation, is convenient for construction and operation and maintenance, has little impact on the surrounding area, and has an economical and reasonable cost.

[0008] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0009] A rotary bottom-hung gate type tide gate, comprising a rotary bottom-hung gate type gate unit arranged on the left side and / or the right side of a river bank, the rotary bottom-hung gate type gate unit comprising:

[0010] A rotating support beam, the middle portion of which is rotatably mounted on the left or right side of the river bank through a ball joint structure, so that the rotating support beam can rotate horizontally and / or vertically around the ball joint structure;

[0011] A pontoon, which is arranged below the rotating support beam and close to one end of the rotating support beam and is fixedly connected to the rotating support beam, and the pontoon floats on the water surface or sinks to the river bottom by filling and discharging water;

[0012] A bottom-hung gate, the bottom-hung gate being mounted on the rotating support beam; and

[0013] A rotation drive mechanism, which is arranged on the left side or the right side of the river bank and connected to the other end of the rotation support beam, and is used to drive the rotation support beam to rotate horizontally around the ball joint structure;

[0014] When it is necessary to block the tide, the pontoon floats on the water surface by drainage, and the rotary drive mechanism drives the rotary support beam to rotate around the ball joint structure to the tide blocking position in the center of the river channel. The pontoon sinks to the bottom of the river by filling with water, and lowers the lower hanging gate to achieve water blocking.

[0015] In a preferred embodiment of the present invention, the rotating support beam is one of a steel box beam structure, a tie arch structure or a steel truss structure.

[0016] In a preferred embodiment of the present invention, a gatehouse for docking pontoons is provided on the left and / or right side of the river bank, a gate shelf for shelving the pontoon is provided at the bottom of the gatehouse, and a gatehouse gate is provided at the connection between the gatehouse and the river channel.

[0017] In a preferred embodiment of the present invention, a ballast water tank is provided in the pontoon, and a filling and draining mechanism for filling or draining water into or from the ballast water tank is provided in the pontoon.

[0018] In a preferred embodiment of the present invention, it also includes side supporting piers, prefabricated reinforced concrete sluice sill and middle supporting piers, the side supporting piers are constructed on the left or right side of the river bank, and the bottoms thereof are connected to the river bank foundation through a plurality of pile foundations, the middle supporting piers are constructed on the bottom surface of the river channel and are located at the sinking position of the pontoon, the bottom of the middle supporting piers is connected to the river bottom foundation through a plurality of pile foundations, and the prefabricated reinforced concrete sluice sill is placed on the bottom surface of the river channel and is located between the side supporting piers and the middle supporting piers.

[0019] In a preferred embodiment of the present invention, an anti-skid convex sill is arranged on the top surface of the middle supporting pier near the side edge of the inland river, and a plurality of bottom supporting feet are arranged at intervals on the bottom surface of the pontoon; when the pontoon is filled with water and sinks and is placed on the middle supporting pier, the bottom supporting feet on the bottom surface of the pontoon come into contact with the anti-skid convex sill on the middle supporting pier; an anti-skid protrusion is arranged on the top surface of the prefabricated reinforced concrete sluice sill near the side edge of the inland river; when the lower hanging gate is lowered, the lower side edge of the lower hanging door body of the lower hanging gate comes into contact with the anti-skid protrusion of the prefabricated reinforced concrete sluice sill.

[0020] In a preferred embodiment of the present invention, the ball joint structure includes a ball joint seat and a joint ball, the ball joint seat is fixedly arranged on the top surface of the edge supporting pier, the joint ball is embedded in the ball joint seat, and the joint ball is provided with a connecting rod connected to the rotating support beam.

[0021] In a preferred embodiment of the present invention, the lower hanging gate includes a plurality of lower hanging door units arranged side by side along the length direction of the rotating support beam, each lower hanging door unit includes a lower hanging door body and a door body opening and closing mechanism, the upper end of the lower hanging door body is hinged on the rotating support beam, the door body opening and closing mechanism is arranged on the rotating support beam and connected to the lower hanging door body, and is used for driving the lower hanging door body to perform a flipping movement along the hinge point to realize the lowering or folding of the lower hanging door body.

[0022] In a preferred embodiment of the present invention, the rotary drive mechanism uses the lever principle to push the rotary support beam away from the end of the pontoon on the shore, so that the rotary support beam rotates around the ball joint structure, thereby realizing horizontal rotation of the gate.

[0023] In a preferred embodiment of the present invention, the rotary drive mechanism includes a first curved locomotive track, a first power locomotive and a driving connecting rod, the first curved locomotive track is laid on the left or right side of the river bank, the first power locomotive is installed on the first curved locomotive track and can reciprocate along the first curved locomotive track, one end of the driving connecting rod is rotatably connected to the first power locomotive, and the other end thereof is rotatably connected to the end of the rotating support beam away from the pontoon.

[0024] In a preferred embodiment of the present invention, the rotary drive mechanism includes a second curved locomotive track, a second power locomotive, a curved vertical groove track and a plurality of rollers, the second curved locomotive track is laid on the left or right side of the river bank, the second power locomotive is installed on the second curved locomotive track and can reciprocate along the second curved locomotive track, the curved vertical groove track is fixedly installed on the side of the second power locomotive, and the plurality of roller spacing shafts are arranged on the side of the end of the rotary support beam away from the pontoon and are embedded in the curved vertical groove track.

[0025] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. It can achieve ultra-large span water retaining.

[0027] 2. The force transmission is clear, the force of each structure is clear, safe and reliable. Part of the water pressure is borne by the prefabricated reinforced concrete sluice sill, and then transmitted to the middle supporting pier and side supporting pier through the prefabricated reinforced concrete sluice sill. The other part of the water pressure is borne by the rotating support beam, and then transmitted to the ball joint structure and the pontoon through the rotating support beam, and the horizontal thrust of the pontoon is finally transmitted to the middle supporting pier.

[0028] 3. The gate opening and closing is flexible and controllable. The opening and closing method of the present invention adopts the lever principle. The opening and closing equipment is located on the shore and is not affected by waves and water currents. It can realize automatic opening and closing, and the opening and closing process is safe and controllable. In addition, the tide gate can be opened and closed in steps. That is, when a no-navigation order is issued and navigation on the river is stopped, the tide gate can first complete the steps of horizontal rotation and placing the pontoon on the middle supporting pier. When the tide level rises and it is needed to block the tide, the lower hanging door is started to block the tide. This step can be completed in only 10 to 15 minutes. When it is predicted that tide blocking is needed for several consecutive days, the lower hanging door can be temporarily retracted after the tide level drops. At this time, although the river cannot resume navigation, it does not affect the normal flow of the river. After the tide rises again, the lower hanging door is started to block the tide.

[0029] 4. Adapt to siltation. Because the lower hanging door is used to lower the water, even if there is a certain degree of siltation on the bottom sill of the prefabricated reinforced concrete sluice, it will not affect the operation of the lower hanging door.

[0030] 5. Does not affect river navigation. The structures of the sluice type of the present invention are all located on the shore under non-tidal working conditions, and no structures that affect navigation are set in the center of the river, which does not affect the normal navigation of the river.

[0031] 6. Convenient construction and operation and maintenance. All structures of the gate type of the present invention have dry operation and maintenance conditions, and operation and maintenance are convenient. During the construction of the gate type of the present invention, the main structures are all on the shore, and the construction is convenient.

[0032] 7. The gate type of the present invention occupies a small area and has little impact on the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a plan view of Example 1 of the present invention in a non-moisture-proof state.

[0035] Figure 2 It is a longitudinal section layout diagram of Example 1 of the present invention in a non-tide-proof state.

[0036] Figure 3 It is a plan view of Example 1 of the present invention in a moisture-proof state.

[0037] Figure 4 It is a longitudinal section layout diagram of Example 1 of the present invention in the process of gate opening (pontoon floating state).

[0038] Figure 5 It is a longitudinal section layout diagram of Example 1 of the present invention during the gate activation process (the pontoon is laid up).

[0039] Figure 6 It is a cross-sectional view of a pontoon according to Embodiment 1 of the present invention.

[0040] Figure 7 It is a cross-sectional view of the lower hanging gate of Example 1 of the present invention.

[0041] Figure 8 It is a longitudinal section layout diagram of Example 1 of the present invention in the process of gate activation (the pontoon is laid up and the lower hanging gate is lowered).

[0042] Fig. 9 It is a cross-sectional view of the lower hanging gate of Example 1 of the present invention (the lower hanging gate is in the lowered state).

[0043] Fig.10It is a longitudinal section layout diagram of another embodiment of the rotary drive mechanism of the present invention (floating state of the pontoon).

[0044] Fig.11 It is a longitudinal section layout diagram of another embodiment of the rotary drive mechanism of the present invention (the pontoon is sinking).

[0045] Fig.12 It is a plan view of another embodiment of the rotary drive mechanism of the present invention.

[0046] Fig.13 It is a plan view of Example 2 of the present invention in a non-moisture-proof state.

[0047] Fig.14 It is a plan view of Example 2 of the present invention in a moisture-proof state. DETAILED DESCRIPTION

[0048] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0049] See also Figure 1 and Figure 2 , the figure shows a rotary bottom-hanging gate type tide gate, including rotary bottom-hanging gate type gate units 100 arranged on the left and right sides of the river bank. Each rotary bottom-hanging gate type gate unit 100 includes a rotary support beam 110, a pontoon 120, a bottom-hanging gate 130 and a rotary drive mechanism 140.

[0050] The rotating support beam 110 adopts a steel box beam structure, and the middle part of the rotating support beam 110 is rotatably installed on the left or right side of the river bank through a ball joint structure 150, so that the rotating support beam 110 can rotate horizontally and / or vertically around the ball joint structure 150. In the present embodiment, the rotating support beam 110 preferably adopts a steel box beam structure, and other mature structural types may also be adopted, such as a tie arch structure, a steel truss structure, etc. The ball joint structure 150 includes a ball joint seat 151 and a joint ball 152. The ball joint seat 151 is fixedly arranged on the top surface of the side support pier 170, and the joint ball 152 is embedded in the ball joint seat 151. A connecting rod (not shown in the figure) connected to the rotating support beam 110 is arranged on the joint ball 152, and the joint ball 152 is fixedly connected to the rotating support beam 110 through the connecting rod.

[0051] The pontoon 120 is arranged below the rotating support beam 110 and close to one end of the rotating support beam 110 and is fixedly connected to the rotating support beam 110. The pontoon 120 floats on the water surface or sinks to the river bottom by filling and discharging water. The rotating support beam 110 is placed on the ball joint structure 150 and the pontoon 120, forming a simply supported beam structure with cantilevers at both ends.

[0052] The pontoon 120 is provided with a ballast water tank 121, and a filling and drainage mechanism (not shown in the figure) for filling or draining the ballast water tank 121 is provided in the pontoon 120. When the filling and drainage mechanism fills the ballast water tank 121 in the pontoon 120, the pontoon 120 sinks below the water surface; when the filling and drainage mechanism drains the ballast water tank 121 in the pontoon 120, the pontoon 120 floats on the water surface. A gatehouse 160 for docking the pontoon is provided on the left and right sides of the river bank, and a gate rest 161 for resting the pontoon is provided at the bottom of the gatehouse 160, and a gatehouse gate 162 is provided at the connection between the gatehouse 160 and the river channel.

[0053] The lower hanging gate 130 is installed on the rotating support beam 110. Specifically, the lower hanging gate 130 includes a plurality of lower hanging gate units 131 arranged side by side along the length direction of the rotating support beam 110, each lower hanging gate unit 131 includes a lower hanging door body 131a and a door body opening and closing mechanism 131b, the upper end of the lower hanging door body 131a is hinged on the rotating support beam 110, and the door body opening and closing mechanism 131b is arranged on the rotating support beam 110 and connected to the lower hanging door body 131a, and is used to drive the lower hanging door body 131a to flip along the hinge point to realize the lower hanging door body 131a. The door body opening and closing mechanism 131b can adopt a winch hoist, a hydraulic hoist or other types of opening and closing equipment.

[0054] The rotation driving mechanism 140 is arranged on the left side or right side of the river bank and connected to the other end of the rotation supporting beam 110 , and is used to drive the rotation supporting beam 110 to rotate horizontally around the ball joint structure 150 .

[0055] The rotary drive mechanism 140 uses the lever principle to push the rotary support beam 110 away from the end of the pontoon 120 on the shore, so that the rotary support beam 110 rotates around the ball joint structure 150, thereby realizing the horizontal rotation of the gate. The rotary drive mechanism 140 can adopt a variety of driving modes, and two driving modes of the rotary drive mechanism are given below:

[0056] The first drive mode: see Figure 1 and Figure 3The rotary drive mechanism 140 includes a curved locomotive track 141, a power locomotive 142, and a driving connecting rod 143. The curved locomotive track 141 is laid on the left or right side of the river bank, the power locomotive 142 is installed on the curved locomotive track 141 and can reciprocate along the curved locomotive track 141, one end of the driving connecting rod 143 is rotatably connected to the power locomotive 142, and the other end thereof is rotatably connected to the end of the rotary support beam 110 away from the pontoon 120. When the rotating support beam 110 rotates vertically, the rotation connection method adopted between the driving connecting rod 143, the power locomotive 142 and the rotating support beam 110, such as a ball joint connection, meets the requirement of vertical rotation of the rotating support beam 110; when the rotating support beam 110 rotates horizontally, the power locomotive 142 moves on the curved locomotive track 141, and the locomotive 142 drives the rotating support beam 110 to rotate horizontally around the ball joint structure 150 through the driving connecting rod 143, thereby realizing the horizontal rotation of the gate.

[0057] The second drive mode: see Figures 10 to 12 The rotary drive mechanism 140a includes a curved locomotive track 141a, a power locomotive 142a, a curved vertical groove track 143a, and a plurality of rollers 144a. The curved locomotive track 141a is laid on the left or right side of the river bank, the power locomotive 142a is installed on the curved locomotive track 141a and can reciprocate along the curved locomotive track 141a, the curved vertical groove track 143a is fixedly installed on the side of the power locomotive 142a, and a plurality of rollers 144a are arranged on the side of the end of the rotary support beam 110 away from the pontoon 120 with a spacing axis and are embedded in the curved vertical groove track 143a. When the rotating support beam 110 rotates vertically, the locomotive 142a maintains a constant height, and the rotating support beam 110 rolls in the arc-shaped vertical groove track 143a on the power locomotive 142a through a number of rollers 144a, thereby meeting the requirement of vertical rotation; when the rotating support beam 110 rotates horizontally, the power locomotive 142a moves on the arc-shaped locomotive track 141a, and the locomotive 142a drives the rotating support beam 110 to rotate horizontally around the ball joint structure 150, thereby realizing the horizontal rotation of the gate.

[0058] When in a non-tide-blocking state, the pontoon 120 is moored in the gatehouse 160 on both sides of the river. Figure 1 As shown, at this time, the tidal gate is completely isolated from the river channel and does not affect the normal navigation of the river channel under non-tidal conditions.

[0059] At this time, the pontoon 120 is placed on the door holder 161 in the gatehouse 160. When the gate 162 of the gatehouse is closed to block water, the water inside the gatehouse 160 can be pumped out to form a dry working environment, and the pontoon 120 can be inspected and maintained. The ball joint structure 150, the rotating support beam 110, and the lower hanging gate 130 are all located on the shore and higher than the ground elevation, and all have dry working and maintenance conditions. Since the entire tide-blocking gate has dry working and maintenance conditions, its inspection and maintenance are relatively convenient.

[0060] When it is necessary to block the tide, the gate 162 is opened to allow water to enter the gate 160. At this time, the pontoon 120 floats up under the action of buoyancy, and the entire rotating support beam 110 is driven to rotate vertically around the ball joint structure 150 during the floating process. After the pontoon 120 floats up and stabilizes, a horizontal force is applied to the cantilever end (also called the gate crank arm) of the rotating support beam 110 near the ball joint structure 150. The method of applying the horizontal force is as follows: Figure 1 , Figure 3 When the power locomotive 142 is started, it drives the driving connecting rod 143 to push the gate arm of the rotating support beam 110 to rotate around the ball joint structure 150, so that the entire rotating support beam 110 will rotate horizontally around the ball joint structure 150 under the action of power until it rotates to the preset tide blocking position in the center of the river channel, as shown in FIG. Figure 3 As shown. Since the opening and closing method of the rotating support beam 110 adopts the lever principle, and the rotating drive mechanism 140 of the rotating support beam 110 is on the shore, automatic opening and closing can be achieved, and the opening and closing process is safe and controllable. Of course, the driving method of the rotating drive mechanism 140 is relatively mature at present, and other methods can also be used to promote opening and closing.

[0061] When the rotating support beam 110 rotates to the center of the river channel, the pontoon 120 is still in a floating state. Figure 4 shown.

[0062] The ballast water tank 121 of the pontoon 120 is filled with water, and the pontoon 120 slowly descends. The sinking of the pontoon 120 drives the rotating support beam 110 to rotate around the ball joint structure 150 as a whole, until the pontoon 120 is completely placed on the middle supporting pier set at the bottom of the river channel.

[0063] During this process, the lower hanging gate 130 located at the lower part of the rotating support beam 110 is still in the retracted state. Figure 5 At this time, the cross-section of the pontoon is as follows: Figure 6 As shown, the cross-section of the lower hanging gate 130 is as shown Figure 7 As shown, the river channel can maintain its flow capacity because the lower hanging door is retracted.

[0064] Finally, the lower hanging gate 130 located at the lower part of the rotating support beam 110 is started and lowered. At this time, the longitudinal section of the entire gate is Figure 8 As shown in the figure, the cross-section diagram at the pontoon is as follows Figure 6As shown, the cross section of the lower hanging gate 130 is shown. Fig. 9 As shown (the lower hanging door is lowered), the entire tide gate can completely block water.

[0065] Each rotary bottom-hanging gate type gate unit 100 in this embodiment further includes a side support pier 170, a prefabricated reinforced concrete sluice sill 180 and a middle support pier 190. The side support pier 170 is constructed on the left or right side of the river bank, and its bottom is connected to the river bank foundation through a plurality of pile foundations 171. The middle support pier 190 is constructed on the bottom surface of the river channel and is located at the sinking position of the pontoon 120. The bottom of the middle support pier 190 is connected to the river bottom foundation through a plurality of pile foundations 191. The prefabricated reinforced concrete sluice sill 180 is placed on the bottom surface of the river channel and is located between the side support pier 170 and the middle support pier 190. Of course, a prefabricated reinforced concrete sluice sill 180 is also provided between two adjacent middle support piers 190. After the prefabricated reinforced concrete sluice sill 180 receives the horizontal thrust transmitted by the bottom-hanging gate 130, it transmits the thrust to the middle support pier 190 and the side support pier 170.

[0066] When the tide gate starts to block the tide, water pressure will be generated due to the different head differences between upstream and downstream. Part of the water pressure is transmitted to the prefabricated reinforced concrete sill 180 through the lower hanging gate 130, and the other part of the water pressure is transmitted to the rotating support beam 110 through the lower hanging gate 130, and then transmitted to the ball joint structure 150 and the pontoon 120 by the rotating support beam 110.

[0067] An anti-skid convex sill 192 is provided on the side edge of the top surface of the middle supporting pier 190 near the downstream, and a plurality of bottom supporting legs 122 are provided at intervals on the bottom surface of the pontoon 120. When the pontoon 120 is filled with water and sinks and rests on the middle supporting pier 190, the bottom supporting legs 122 on the bottom surface of the pontoon 120 come into contact with the anti-skid convex sill 192 on the middle supporting pier 190. Similarly, an anti-skid protrusion 181 is provided on the side edge of the top surface of the prefabricated reinforced concrete sluice sill 180 near the downstream. When the lower hanging gate 130 is lowered, the lower side edge of the lower hanging gate body of the lower hanging gate 130 comes into contact with the anti-skid protrusion 181 of the prefabricated reinforced concrete sluice sill 180.

[0068] See also Figure 6 After the bottom support leg 122 on the bottom surface of the pontoon 120 contacts the anti-slip convex sill 192 on the middle supporting pier 190, the horizontal thrust is transmitted to the middle supporting pier 190, thereby realizing the anti-slip of the pontoon. In addition to bearing the horizontal force transmitted by the pontoon 120, the middle supporting pier 190 also needs to bear the vertical pressure transmitted by the pontoon 120. The anti-overturning point of the pontoon 120 is at the contact point between the bottom support leg 122 and the anti-slip convex sill 192. The anti-overturning stability is achieved by the pressure transmitted by the upper steel structure box girder on the pontoon and the deadweight of the pontoon itself.

[0069] When tide-proofing is not needed, the lower gate 130 is retracted, the ballast water tank 121 of the pontoon 120 is drained, the pontoon 120 floats, and the tide-proof gate is pushed by the shore power locomotive to rotate horizontally back to the gatehouse, and the river channel can be restored to navigation.

[0070] In the above scheme, a rotating under-hung door type gate unit 100 is arranged on each bank. Alternatively, a rotating under-hung door can be arranged on only one bank. Fig.13 and Fig.14 As shown, its structure and principle are basically the same as the above scheme, and will not be elaborated again.

[0071] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rotary bottom-hung gate type tide gate, comprising a rotary bottom-hung gate type gate unit arranged on the left and / or right side of a river bank, characterized in that: The rotary bottom-hung gate type gate unit comprises: A rotating support beam, the middle portion of which is rotatably mounted on the left or right side of the river bank through a ball joint structure, so that the rotating support beam can rotate horizontally and / or vertically around the ball joint structure; A pontoon, which is arranged below the rotating support beam and close to one end of the rotating support beam and is fixedly connected to the rotating support beam, and the pontoon floats on the water surface or sinks to the river bottom by filling and discharging water; A bottom-hung gate, the bottom-hung gate being mounted on the rotating support beam; and A rotation drive mechanism, which is arranged on the left side or the right side of the river bank and connected to the other end of the rotation support beam, and is used to drive the rotation support beam to rotate horizontally around the ball joint structure; When it is necessary to block the tide, the pontoon floats on the water surface by drainage, and the rotary drive mechanism drives the rotary support beam to rotate around the ball joint structure to the tide blocking position in the center of the river channel. The pontoon sinks to the bottom of the river by filling with water, and lowers the lower hanging gate to achieve water blocking.

2. The rotary bottom-hung door type tide barrier as claimed in claim 1, characterized in that: The rotating support beam is a steel box beam structure, a tie arch structure or a steel truss structure.

3. The rotary bottom-hung door type tide barrier as claimed in claim 1, characterized in that: A gatehouse for docking pontoons is arranged on the left and / or right side of the river bank, a door shelf for shelving the pontoon is arranged at the bottom of the gatehouse, and a gatehouse gate is arranged at the connection between the gatehouse and the river channel.

4. The rotary bottom-hung door type tide barrier as claimed in claim 1, characterized in that: The pontoon is provided with a ballast water tank, and the pontoon is provided with a filling and drainage mechanism for filling or draining water into the ballast water tank.

5. The rotary bottom-hung door type tide barrier according to any one of claims 1 to 4, characterized in that: It also includes side supporting piers, prefabricated reinforced concrete sluice sill and middle supporting piers. The side supporting piers are constructed on the left or right side of the river bank, and the bottoms thereof are connected to the river bank foundation through a plurality of pile foundations. The middle supporting piers are constructed on the bottom surface of the river channel and are located at the sinking position of the pontoon. The bottom of the middle supporting piers is connected to the river bottom foundation through a plurality of pile foundations. The prefabricated reinforced concrete sluice sill is placed on the bottom surface of the river channel and is located between the side supporting piers and the middle supporting piers.

6. The rotary bottom-hung door type tide barrier as claimed in claim 5, characterized in that: An anti-skid convex sill is arranged on the side edge of the top surface of the middle supporting pier close to the downstream, and a plurality of bottom supporting feet are arranged at intervals on the bottom surface of the pontoon; when the pontoon is filled with water and sinks and is placed on the middle supporting pier, the bottom supporting feet on the bottom surface of the pontoon come into contact with the anti-skid convex sill on the middle supporting pier; an anti-skid protrusion is arranged on the side edge of the top surface of the prefabricated reinforced concrete sluice sill close to the downstream; when the lower hanging gate is lowered, the lower side edge of the lower hanging door body of the lower hanging gate comes into contact with the anti-skid protrusion of the prefabricated reinforced concrete sluice sill.

7. The rotary bottom-hung door type tide barrier as claimed in claim 5, characterized in that: The ball joint structure includes a ball joint seat and a joint ball. The ball joint seat is fixedly arranged on the top surface of the edge support pier. The joint ball is embedded in the ball joint seat. The joint ball is provided with a connecting rod connected to the rotating support beam.

8. The rotary bottom-hung door type tide barrier as claimed in claim 1, characterized in that: The lower hanging gate includes a plurality of lower hanging door units arranged side by side along the length direction of the rotating support beam, each lower hanging door unit includes a lower hanging door body and a door body opening and closing mechanism, the upper end of the lower hanging door body is hinged on the rotating support beam, the door body opening and closing mechanism is arranged on the rotating support beam and connected to the lower hanging door body, and is used for driving the lower hanging door body to perform a flipping movement along the hinge point to realize the lowering or folding of the lower hanging door body.

9. The rotary bottom-hung door type tide barrier as claimed in claim 1, characterized in that: The rotary drive mechanism uses the lever principle to push the rotary support beam away from the end of the pontoon on the shore, so that the rotary support beam rotates around the ball joint structure, thereby realizing the horizontal rotation of the gate.

10. The rotary bottom-hung door type tide barrier as claimed in claim 9, characterized in that: The rotary drive mechanism includes a first curved locomotive track, a first power locomotive and a driving connecting rod. The first curved locomotive track is laid on the left or right side of the river bank. The first power locomotive is installed on the first curved locomotive track and can reciprocate along the first curved locomotive track. One end of the driving connecting rod is rotatably connected to the first power locomotive, and the other end thereof is rotatably connected to the end of the rotating support beam away from the pontoon.

11. The rotary bottom-hung door type tide barrier as claimed in claim 9, characterized in that: The rotary drive mechanism includes a second curved locomotive track, a second power locomotive, a curved vertical groove track and a plurality of rollers. The second curved locomotive track is laid on the left or right side of the river bank. The second power locomotive is installed on the second curved locomotive track and can reciprocate along the second curved locomotive track. The curved vertical groove track is fixedly installed on the side of the second power locomotive. The plurality of roller spacing shafts are arranged on the side of the end of the rotary support beam away from the pontoon and are embedded in the curved vertical groove track.

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