Ecological estuary sluice

Abstract

The invention provides an ecological estuary sluice which comprises a sluice body, overflow weirs are arranged on the two sides of the sluice body, one end of each overflow weir is connected with the sluice body, and the other end of each overflow weir is connected with an estuary revetment. A closed water retaining system is formed by the water gate body and the overflow weir in the width direction of the river mouth; the overflow weir comprises a weir body, a plurality of overflow piers are arranged at the top of the weir body, the overflow piers are evenly arranged at intervals, an overflow groove is formed in the interval between every two adjacent overflow piers, a water baffle is arranged in each overflow groove, and the top of the weir body is lower than the water level of the estuary. The ecological estuary sluice is more flexible in water flow control, can greatly promote water fluidity, further can reduce gathering of floating objects on the water surface of the sluice body, reduces the risk of blue-green algae outbreak, and can provide a basic living environment for aquatic organisms and increase biomass.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, in particular to an ecological estuary sluice. Background Art

[0002] In the wide river channel of the plain river network, it is necessary to build water retaining and discharge structures in the wide river channel due to the needs of flood control, water level regulation, and improvement of water ecological environment. According to the flow capacity requirements, the gate hole width is usually much smaller than the estuary width. The traditional layout method is to build a sluice in the middle of the river channel, and connect the estuary revetment with arc-shaped wing walls on both sides of the sluice to form a peninsula protruding into the river channel. This solution occupies more water surface, has poor ecological performance, and has poor landscape effect and economic efficiency. Summary of the invention

[0003] In view of the shortcomings of the prior art mentioned above, the object of the present invention is to provide an ecological estuary sluice, which has flexible water flow control, can greatly promote water fluidity, reduce the risk of blue-green algae outbreaks, and can also provide a basic living environment for aquatic organisms to increase biomass, thereby solving the problem of poor ecology of sluices in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides an ecological estuary sluice, comprising a sluice body, overflow weirs are arranged on both sides of the sluice body, one end of the overflow weir is connected to the sluice body, and the other end of the overflow weir is connected to the estuary revetment, and the sluice body and the overflow weir form a closed water retaining system along the width direction of the estuary; the overflow weir comprises a weir body, a plurality of overflow piers are arranged on the top of the weir body, and the plurality of overflow piers are evenly spaced, and the intervals between two adjacent overflow piers form an overflow trough, and a water retaining plate is arranged in each overflow trough, wherein the top of the weir body is lower than the water level of the estuary.

[0005] Preferably, a slot is provided on the side of the overflow pier, and the two sides of the water retaining plate are respectively clamped in the slots on two adjacent overflow piers.

[0006] Preferably, a first retaining wall is provided on the side of one end where the overflow weir is connected to the estuary revetment, and the first retaining wall, the overflow weir and the estuary revetment enclose a first closed reservoir, and the first closed reservoir is filled with cultivated soil, and green plants are planted in the cultivated soil to form a first ecological island.

[0007] Preferably, the sluice body comprises a first pier and a second pier, a gate is arranged between the first pier and the second pier, wherein the first pier and the second pier each comprise a pier bottom plate, a pier top plate and four pier side plates, the pier bottom plate, the pier top plate and the four pier side plates enclose a closed accommodating space, a driving device is arranged inside the accommodating space, a driving shaft is fixedly arranged on the gate, one end of the driving shaft is drivingly connected to the driving device in the first pier, and the other end of the driving shaft is drivingly connected to the driving device in the second pier.

[0008] Preferably, the gate pier bottom plate, the gate pier top plate and the four gate pier side plates are all reinforced concrete structures.

[0009] Preferably, inspection openings are provided on the pier top plates of the first pier and the second pier.

[0010] Preferably, the driving device includes a hydraulic cylinder and a rotating crank, wherein the hydraulic cylinder is fixedly arranged on the bottom plate of the gate pier, the piston rod of the hydraulic cylinder is connected to the first end of the rotating crank, and the second end of the rotating crank is fixedly connected to the driving shaft; based on the telescopic movement of the piston rod, the piston rod can drive the rotating crank to rotate, when the piston rod drives the rotating crank to rotate to a first position, the gate is in an open state, and when the piston rod drives the rotating crank to rotate to a second position, the gate is in a closed state.

[0011] Preferably, a locking connecting plate is provided at the first end of the rotating crank, and a locking component is also fixedly provided in the accommodating space, and when the piston rod drives the rotating crank to rotate to the second position, the locking connecting plate can be connected to the locking component.

[0012] Preferably, a second retaining wall is provided on the outer side of the first pier, and a second closed tank is enclosed between the second retaining wall and the pier side plate of the first pier, and the second closed tank is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island; and / or, a second retaining wall is provided on the outer side of the second pier, and a second closed tank is enclosed between the second retaining wall and the pier side plate of the second pier, and the second closed tank is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island.

[0013] Preferably, the four pier side plates of the first pier all protrude upward by a certain distance relative to the pier top plate of the first pier, thereby forming a top containing pool on the top of the first pier; the top containing pool is filled with cultivated soil, and green plants are planted in the cultivated soil, so as to form a third ecological island on the top of the first pier; and / or, the four pier side plates of the second pier all protrude upward by a certain distance relative to the pier top plate of the second pier, thereby forming a top containing pool on the top of the second pier; the top containing pool is filled with cultivated soil, and green plants are planted in the cultivated soil, so as to form a third ecological island on the top of the second pier.

[0014] As described above, the ecological estuary sluice of the present invention has the following beneficial effects: the ecological estuary sluice of the present application adopts a variety of control methods, mainly through sluice control and supplemented by the water retaining plate control of the overflow weir, so that the control of water flow is more flexible, which can greatly promote the fluidity of the water body, thereby reducing the aggregation of floating objects on the water surface of the sluice body, reducing the risk of blue-green algae outbreaks, and also providing a basic living environment for aquatic organisms to increase biomass. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a top view of the ecological estuary sluice provided by the present invention.

[0016] Figure 2 Shown is a cross-sectional view of the overflow weir provided by the present invention.

[0017] Figure 3 Shown is a top view of the overflow weir provided by the present invention.

[0018] Figure 4 The present invention provides Figure 1 Enlarged view of point A in the middle.

[0019] Figure 5 Shown is a cross-sectional view of the sluice body provided by the present invention.

[0020] Figure 6 The present invention provides Figure 5 Cross-section of DD.

[0021] Description of Reference Numerals

[0022] 10 Sluice gate

[0023] 11. The first pier

[0024] 12 Second Gate Pier

[0025] 13. Gate

[0026] 130 Drive shaft

[0027] 101 Storage Space

[0028] 20 Overflow weir

[0029] 200 Weir

[0030] 201 Overflow Pier

[0031] 2011 Card Slot

[0032] 202 Water retaining plate

[0033] 30 Drive unit

[0034] 31 Hydraulic Cylinder

[0035] 311 Piston rod

[0036] 32 Turn the crank

[0037] 321 Locking connecting plate

[0038] 40 Locking parts

[0039] 50 Second retaining wall

[0040] 500 Second closed tank

[0041] 501 Second Ecological Island

[0042] 60 The Third Ecological Island

[0043] 100 Estuary revetment

[0044] 1001 First Ecological Island DETAILED DESCRIPTION

[0045] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] See also Figures 1 to 6 It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0049] The present invention provides an ecological estuary sluice gate, such as Figures 1 to 4 As shown, the ecological estuary sluice includes a sluice body 10, and overflow weirs 20 are arranged on both sides of the sluice body 10. One end of the overflow weir 20 is connected to the sluice body 10, and the other end of the overflow weir 20 is connected to the estuary revetment 100. The sluice body 10 and the overflow weir 20 form a closed water retaining system along the width direction of the estuary; specifically, the overflow weir 20 includes a weir body 200, the top of the weir body 200 is lower than the water level of the estuary, and a plurality of overflow piers 201 are arranged on the top of the weir body 200, and the plurality of overflow piers 201 are evenly spaced, and the interval between two adjacent overflow piers 201 forms an overflow trough, and a water retaining plate 202 is arranged in each overflow trough.

[0050] The beneficial effect of the ecological estuary sluice of the present invention is that, when in use, the water retaining system formed by the sluice body 10 and the overflow weir 20 jointly blocks the river channel, wherein the closing and opening of the sluice body 10 can realize the water retaining and large-flow water discharge functions to ensure the navigation conditions of the river channel, and since the top of the weir body 200 of the overflow weir 20 is lower than the water level of the estuary, and a plurality of overflow piers 201 are arranged at equal intervals on the top of the overflow weir 20, and a water retaining plate 202 is arranged in the overflow groove formed between two adjacent overflow piers 201, the number of the water retaining plates 202 can be flexibly controlled according to the water level difference between the upstream and downstream, thereby flexibly controlling the upstream The overflow of water flowing from the overflow trough to the downstream can promote the flow of water near the sluice gate, reduce the accumulation of floating objects on the water surface between the overflow weir and the sluice gate, and reduce the risk of blue algae outbreaks; at the same time, the discharge of small flow through the overflow weir can increase the fluidity of the water body, greatly reduce the occupancy rate of the water surface, and provide a basic living environment for aquatic organisms to increase biomass; in addition, the ecological estuary sluice of the present application adopts a three-stage arrangement in the transverse direction of the river channel, that is, the width direction, through the overflow weir-sluice body-overflow weir. The sluice body 10 and the overflow weir 20 divide the river channel into two parts of the upstream and downstream space in the longitudinal direction, which also enriches the spatial hierarchy and increases the effect of the waterfall. Therefore, compared with the traditional single gate control in the prior art, the ecological estuary sluice of the present application uses a variety of control methods, mainly controlled by the sluice gate and supplemented by the water baffle control of the overflow weir, so that the control of the water flow is more flexible, which can greatly promote the fluidity of the water body, and thus can reduce the accumulation of floating objects on the water surface of the sluice body, reduce the risk of blue algae outbreaks, and can also provide a basic living environment for aquatic organisms to increase biomass.

[0051] Preferably, Figure 2 As shown, in this embodiment, the overflow pier 201 is provided with a slot 2011 on the side. When the water retaining plate 202 is provided, the two sides of the water retaining plate 202 are respectively clamped in the slots on the two adjacent overflow piers. Through the clamping connection mode, the structure is simple and convenient for disassembly and assembly. Specifically, "the top of the weir body is lower than the water level of the estuary", specifically, the top of the weir body 200 can be 10 cm lower than the normal water level of the estuary.

[0052] Preferably, Figure 1 As shown, in this embodiment, a first retaining wall is provided on the side of one end where the overflow weir 20 is connected to the estuary revetment 100. The first retaining wall, the overflow weir 20 and the estuary revetment 100 enclose a first closed reservoir, which is filled with cultivated soil, and green plants are planted in the cultivated soil to form a first ecological island 1001. Specifically, as Figure 1As shown, a first retaining wall is provided on both sides of the left and right sides of the end where the overflow weir 20 is connected to the estuary revetment, so that a first ecological island 1001 is formed on both sides of the left and right sides of the end where the overflow weir 20 is connected to the estuary revetment 100. Through this structural design, that is, by arranging the first ecological island 1001 at the connection between the overflow weir 20 and the estuary revetment 100 for transition, an ecological island in the water can be formed, thereby providing a diverse habitat for aquatic organisms, enriching the biodiversity in the river channel, and at the same time weakening the civil engineering structure of the overflow weir and improving the overall landscape of the estuary sluice. Specifically, the green plants planted in the cultivated soil are preferably in the form of a combination of trees, shrubs, grasses and aquatic plants.

[0053] Specifically, Figure 1 As shown, in this embodiment, the overflow weir 20 is curved. By setting the overflow weir 20 to be curved, it can adapt to the overall shape of the whole, making the ecological estuary sluice more beautiful.

[0054] Preferably, Figure 1 and Figures 4 to 6 As shown, in this embodiment, the sluice body 10 includes a first pier 11 and a second pier 12, and a gate 13 is provided between the first pier 11 and the second pier 12. Specifically, the first pier 11 and the second pier 12 have the same structure, that is, both include a pier bottom plate, a pier top plate and four pier side plates, and the pier bottom plate, the pier top plate and the four pier side plates enclose a closed accommodating space 101, and a driving device 30 is provided inside the accommodating space 101. Correspondingly, a driving shaft 130 is fixedly provided on the gate 13, and one end of the driving shaft 130 is connected to the driving device 30 arranged in the accommodating space of the first pier 11, and the other end of the driving shaft 130 is connected to the driving device 30 arranged in the accommodating space of the second pier 12. When the gate 13 needs to be opened and closed, the driving device in the first gate pier 11 and the driving device in the second gate pier 12 synchronously drive the driving shaft 130 to rotate, and the driving shaft 130 will drive the gate 13 to flip up and down. When the gate 13 is rotated in a vertical state, the gate is in a closed state to block water, and when the gate 13 is rotated in a horizontal state, the gate 13 is in an open state to discharge water. In the present application, by arranging the driving device 30 in the closed accommodation space formed by the first gate pier / the second gate pier, space can be saved, the volume of the sluice body can be reduced, and the driving device can also be protected to increase the service life of the driving device.

[0055] Preferably, a control unit is provided in the accommodation space of the first gate pier / the second gate pier, and the control unit is electrically connected to the driving device 30, and the control unit is communicatively connected to the external control system. When the driving device 30 needs to be started, a control signal can be sent to the control unit through the external control system, and the control unit controls the driving device 30 to start based on the control signal to drive the gate 13 to open and close. Through this design, the opening and closing of the gate can be remotely controlled, the workload of operation management personnel can be reduced, the frequency of personnel entering and exiting the sluice gate can be reduced, and a quiet environment can be created for small animals such as water birds.

[0056] Specifically, in this embodiment, the pier bottom plate, the pier top plate and the four pier side plates of the first pier 11 / the second pier 12 are all reinforced concrete structures.

[0057] Preferably, in order to facilitate the later inspection and maintenance of the driving device, in the present embodiment, inspection ports are provided on the pier top plates of the first pier 11 and the second pier 12. When the driving device 30 needs to be inspected, the maintenance personnel can walk along the overflow weir 20 to the first pier / second pier, and then enter the internal accommodation space of the first pier / second pier from the top of the first pier / second pier, i.e., the inspection port on the pier top plate, to inspect the driving device 30.

[0058] Furthermore, in order to facilitate ventilation of the accommodating space inside the first pier 11 and the second pier 12 and to facilitate hanging of objects, preferably, in this embodiment, ventilation shafts and hanging holes are also provided on the pier top plates of the first pier 11 and the second pier 12.

[0059] Preferably, Figure 5 and Figure 6 As shown, in this embodiment, the driving device 30 includes a hydraulic cylinder 31 and a rotating crank 32, wherein the hydraulic cylinder 31 is fixedly arranged on the bottom plate of the gate pier, the piston rod 311 of the hydraulic cylinder 31 is connected to the first end of the rotating crank 32, and the second end of the rotating crank 32 is fixedly connected to the driving shaft 130 of the gate 13. Based on the telescopic movement of the piston rod 311 of the hydraulic cylinder, the piston rod 311 can drive the rotating crank 32 to rotate. When the piston rod 311 drives the rotating crank 32 to rotate, the rotating crank 32 will drive the driving shaft 130 to rotate together, so that the driving shaft 130 will drive the gate 13 to rotate together, as shown in FIG. Figure 6 As shown, when the piston rod 311 drives the rotating crank 32 to rotate to the first position, the gate 13 is in an open state, that is, the gate 13 is in a horizontal state at this time; when the piston rod 311 drives the rotating crank 32 to rotate to the second position, the gate 13 is in a closed state, that is, the gate 13 is in a vertical state at this time.

[0060] Furthermore, considering that the gate 13 is in a water-blocking state when it is closed, that is, a large water pressure will be applied to the gate 13, in order to prevent the hydraulic cylinder 13 from malfunctioning when continuously applying thrust, causing the gate 13 to be not closed tightly, it is preferred that Figure 6 As shown, in the present embodiment, a locking connecting plate 321 is further provided at the first end of the rotating crank 32, and correspondingly, a locking component 40 is further fixedly provided in the accommodating space of the first gate pier / the second gate pier. When the piston rod 311 drives the rotating crank 32 to rotate to the second position, that is, when the gate 13 is in a closed state, the locking connecting plate 321 can be connected to the locking component 40, so that the rotation of the rotating crank 32 can be limited through the connection between the locking component 40 and the locking connecting plate 321, thereby limiting the rotation of the gate 13, and ensuring the stability of the closing of the gate 13.

[0061] Further, in a specific embodiment, if Figure 4 As shown, a second retaining wall 50 is provided on the outside of the first pier 11, and a second closed tank 500 is enclosed between the second retaining wall 50 and the pier side plate of the first pier 11. The second closed tank 500 is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island 501. Through this design, an underwater ecological island can be set up on the periphery of the first pier 11, so as to further provide a diverse habitat for aquatic organisms, enrich the biodiversity in the river channel, and weaken the civil engineering structure of the first pier, thereby improving the overall landscape effect of the estuary sluice. Or in other optional embodiments, a second retaining wall can be set up on the outside of the second pier 12, and a second closed tank is enclosed between the second retaining wall and the pier side plate of the second pier, and the second closed tank is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island, that is, a second ecological island is formed on the periphery of the second pier 12. Preferably, in the present embodiment, a second retaining wall 50 is provided on the outer side of the first pier 11 and the second pier 12, and a second closed reservoir is enclosed between the second retaining wall arranged on the outer side of the first pier 11 and the pier side plate of the first pier, and the second closed reservoir is filled with cultivated soil and planted with green plants to form a second ecological island 501 on the periphery of the first pier 11; a second closed reservoir is also enclosed between the second retaining wall arranged on the outer side of the second pier 12 and the pier side plate of the second pier, and the second closed reservoir is filled with cultivated soil and planted with green plants to form a second ecological island 501 on the periphery of the second pier 12. By providing a second ecological island on the periphery of the first pier 11 and the second pier 12, the biodiversity in the river channel can be further enriched, the civil engineering structure of the sluice body can be weakened, and the overall landscape effect of the estuary sluice can be further improved.

[0062] Further, in a specific embodiment, if Figure 4As shown, the four pier side plates of the first pier 11 all protrude upward by a certain distance relative to the pier top plate of the first pier 11, so that a top reservoir can be formed on the top of the first pier 11, and the top reservoir is filled with cultivated soil, and green plants are planted in the cultivated soil to form a third ecological island 60. Specifically, it can be understood that, considering that an inspection port, a ventilation shaft and a hanging hole are also provided on the pier top plate, the pier top plate of the first pier 11 includes a first area and a second area, wherein the inspection port, the ventilation shaft and the hanging hole are provided in the first area of ​​the pier top plate, and the second area of ​​the pier top plate is filled with the cultivated soil and planted with green plants to form a third ecological island 60 on the top of the first pier 11. Alternatively, in other optional embodiments, a third ecological island 60 can be set on the top of the second pier 12. The manner and structure of setting the third ecological island 60 on the top of the second pier 12 are the same as the manner and structure of setting the third ecological island 60 on the top of the first pier 11, so they will not be repeated here. Preferably, in this embodiment, a third ecological island 60 is set on the top of the first pier 11 and the second pier 12, that is, in this embodiment, ecological islands are set on the periphery and top of the first pier 11, and ecological islands are set on the periphery and top of the second pier 12, so as to further provide diverse habitats for organisms, form a stable ecosystem, enrich biodiversity, and at the same time further weaken the civil engineering structure of the sluice body, and further enhance the overall landscape effect of the estuary sluice.

[0063] In summary, the ecological estuary sluice of the present invention, through a variety of control methods with sluice control as the main control and overflow weir control as the auxiliary control, makes the control of water flow more flexible, can greatly promote the fluidity of water body, and then can reduce the gathering of floating objects on the water surface of the sluice body, reduce the risk of blue algae outbreak, and can also provide a basic living environment for aquatic organisms to increase biomass. At the same time, ecological islands are set at the connection between the overflow weir and the estuary revetment and the first and second piers of the sluice, constructing a biological habitat, providing a variety of habitats for organisms to enrich biodiversity, and also weakening the civil engineering structure, and improving the overall landscape effect of the estuary sluice. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An ecological estuary sluice gate, characterized in that: include: A sluice body, with overflow weirs provided on both sides of the sluice body, one end of the overflow weir being connected to the sluice body, and the other end of the overflow weir being connected to the estuary revetment, so that the sluice body and the overflow weir form a closed water retaining system in the width direction of the estuary; The overflow weir comprises a weir body, a plurality of overflow piers are arranged on the top of the weir body, the plurality of overflow piers are evenly spaced, the interval between two adjacent overflow piers forms an overflow trough, each of the overflow troughs is provided with a water retaining plate, wherein the top of the weir body is lower than the water level of the estuary.

2. The ecological estuary sluice gate according to claim 1, characterized in that: A clamping groove is arranged on the side of the overflow pier, and the two sides of the water retaining plate are respectively clamped in the clamping grooves on two overflow piers adjacent to each other.

3. The ecological estuary sluice gate according to claim 1, characterized in that: A first retaining wall is provided on the side of one end where the overflow weir is connected to the estuary revetment. The first retaining wall, the overflow weir and the estuary revetment enclose a first closed reservoir. The first closed reservoir is filled with cultivated soil, and green plants are planted in the cultivated soil to form a first ecological island.

4. The ecological estuary sluice gate according to claim 1, characterized in that: The sluice body comprises a first pier and a second pier, a gate is arranged between the first pier and the second pier, wherein the first pier and the second pier each comprise a pier bottom plate, a pier top plate and four pier side plates, the pier bottom plate, the pier top plate and the four pier side plates enclose a closed accommodating space, a driving device is arranged inside the accommodating space, a driving shaft is fixedly arranged on the gate, one end of the driving shaft is drivingly connected to the driving device in the first pier, and the other end of the driving shaft is drivingly connected to the driving device in the second pier.

5. The ecological estuary sluice gate according to claim 4, characterized in that: The gate pier bottom plate, the gate pier top plate and the four gate pier side plates are all reinforced concrete structures.

6. The ecological estuary sluice gate according to claim 4, characterized in that: Inspection openings are provided on the pier top plates of the first pier and the second pier.

7. The ecological estuary sluice gate according to claim 4, characterized in that: The driving device includes a hydraulic cylinder and a rotating crank, wherein the hydraulic cylinder is fixedly arranged on the bottom plate of the gate pier, the piston rod of the hydraulic cylinder is connected to the first end of the rotating crank, and the second end of the rotating crank is fixedly connected to the driving shaft; based on the telescopic movement of the piston rod, the piston rod can drive the rotating crank to rotate, when the piston rod drives the rotating crank to rotate to the first position, the gate is in an open state, and when the piston rod drives the rotating crank to rotate to the second position, the gate is in a closed state.

8. The ecological estuary sluice gate according to claim 7, characterized in that: A locking connecting plate is provided at the first end of the rotating crank, and a locking component is also fixedly provided in the accommodating space. When the piston rod drives the rotating crank to rotate to the second position, the locking connecting plate can be connected to the locking component.

9. The ecological estuary sluice gate according to claim 4, characterized in that: A second retaining wall is disposed outside the first pier, and a second closed tank is enclosed between the second retaining wall and the pier side plate of the first pier. The second closed tank is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island. and / or A second retaining wall is provided on the outer side of the second pier, and a second closed tank is enclosed between the second retaining wall and the pier side plate of the second pier. The second closed tank is filled with cultivated soil, and green plants are planted in the cultivated soil to form a second ecological island.

10. The ecological estuary sluice gate according to claim 9, characterized in that: The four gate pier side plates of the first gate pier all protrude upwards by a certain distance relative to the gate pier top plate of the first gate pier, so as to form a top containing pool on the top of the first gate pier; the top containing pool is filled with cultivated soil, and green plants are planted in the cultivated soil, so as to form a third ecological island on the top of the first gate pier; and / or The four pier side plates of the second pier all protrude upward by a certain distance relative to the pier top plate of the second pier, thereby forming a top containing pool on the top of the second pier; the top containing pool is filled with cultivated soil, and green plants are planted in the cultivated soil to form a third ecological island on the top of the second pier.

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