Inverted-T-shaped flap gate and navigation water gate applying same

Abstract

The utility model provides an inverted-T-shaped flap gate. The inverted-T-shaped flap gate comprises a gate plate, two rotating shafts, no more than two shaft driving mechanisms, two gate piers and two supporting bearings, the gate pier is provided with equipment mounting cavities, and a shaft driving mechanism is arranged in at least one equipment mounting cavity; the front view structure of the gate plate is in an inverted-T shape, and the gate plate comprises a rectangular main gate leaf and two side convex gate leaves arranged on the two sides of the upper portion of the main gate leaf correspondingly. One end parts of the two rotating shafts are fixedly and symmetrically connected with the two sides of the vertical middle part of the gate plate respectively; and the other end parts of the two rotating shafts respectively penetrate through the side surfaces of the two gate piers so as to enter equipment mounting cavities of the gate piers, and are supported on the gate piers through supporting bearings which are in one-to-one correspondence. The utility model further provides a navigation sluice which is transversely arranged in the navigation sluice hole and comprises a plurality of groups of inverted-T-shaped flap gates which are arranged side by side. The water retaining device can ensure water retaining safety, reduce operation energy consumption and engineering investment, and improve safe operation reliability of the gate.

Description

Technical Field

[0001] The utility model relates to the technical field of navigable water conservancy engineering gate equipment, in particular to an inverted convex-shaped flap gate and a navigable water gate using the same. Background Art

[0002] In modern water conservancy projects, the scale of sluice gates is getting larger and larger, and the width of the gate hole is relatively large, especially for navigation lock holes with navigation requirements. For example, the width of the one-way navigation lock hole of Class I waterway should be greater than 70m. If a single gate is used, its manufacturing and installation are extremely difficult, and the hoist capacity and engineering volume have reached a certain scale, even exceeding the current design and manufacturing level, which greatly increases the project cost.

[0003] The flap gate is a type of gate commonly used in water conservancy projects. The gate is flat, with a hinge in the middle of the gate leaf, fixedly installed on the gate piers on both sides, and driven by the opening and closing equipment to flip within the range of 0° to 90° to achieve opening and closing. The problems and disadvantages of the flap gate are: the gate is supported on the hinge, the gate width and water retaining height cannot be too large; the gate hoist is installed downstream of the gate, and the gate is in the water flow when it is opened. If the downstream water level is high, it will be underwater for a long time, and the working conditions and maintenance conditions of the gate hoist are poor. Utility Model Content

[0004] In view of this, it is necessary to propose an inverted convex flap gate and a navigation water lock using the same to address the above-mentioned problems, so as to overcome some shortcomings in the above-mentioned background technology and solve the technical problem of how to make the gate used in the navigation lock hole meet the requirements of safe operation, convenient inspection and maintenance, and reduced construction cost at the same time.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model proposes an inverted convex U-shaped flap gate, which is horizontally arranged in a navigation gate hole and is used for water retaining, flood discharge and navigation. The gate comprises a gate plate, two rotating shafts, shaft driving mechanisms of no more than two, two gate piers and two supporting bearings; the gate piers are provided with equipment installation cavities, and at least one equipment installation cavity is provided with a shaft driving mechanism; the front view structure of the gate plate is in an inverted convex U-shaped, and the gate plate comprises a rectangular main gate leaf and two side convex gate leaves respectively arranged on both sides of the upper part of the main gate leaf; one end of the two rotating shafts is respectively fixedly and symmetrically connected to both sides of the vertical middle part of the gate plate; the other end of the two rotating shafts respectively passes through the side surfaces of the two gate piers to enter the equipment installation cavity of the gate piers, and is supported on the gate piers through one-to-one corresponding supporting bearings;

[0007] When the gate plate is in a vertical state, it closes the navigation gate hole to retain water and store water. The part of the main gate leaf located vertically above the rotation axis is the upper part of the main gate leaf, and the part of the main gate leaf located vertically below the rotation axis is the lower part of the main gate leaf. The side convex gate leaves are located above the top of the corresponding gate piers, and the side of the gate plate that retains water is the front plate surface of the gate plate;

[0008] When the gate plate is flipped to a horizontal state, the upper water flow channel area above the rotating shaft of the navigation lock hole is used as a waterway for ships to navigate, and the lower water flow channel area below the rotating shaft of the navigation lock hole is used for water to pass through and carry away sediment;

[0009] The shaft driving mechanism is used to drive the rotating shaft to rotate;

[0010] The rotating shaft is used to turn the gate plate around the axis of the rotating shaft;

[0011] The gate plate is used to retain water and store water when closing the navigation lock hole, and is driven by the rotating shaft to flip.

[0012] Furthermore, the support bearings are installed in the equipment installation cavity in a one-to-one correspondence.

[0013] Furthermore, the shaft hole of the gate pier through which the rotating shaft passes is provided with a waterproof sealing device;

[0014] The gate piers are all equipped with upstream and downstream inspection gate slots, which are used to improve the inspection conditions of the gates;

[0015] A buoyancy box is provided at the lower part of the main door leaf, and the buoyancy box is used to reduce the driving force of the shaft driving mechanism.

[0016] Furthermore, the top of the gate pier is not higher than the front plate surface of the gate plate when the gate plate is flipped to a horizontal state, thereby meeting the requirements of the navigable water depth.

[0017] Furthermore, the shaft driving mechanism includes a gate hoist and a connecting rod mechanism; the connecting rod mechanism includes a plurality of crank arms; the gate hoist is used to drive the connecting rod mechanism to move, thereby driving the rotating shaft to rotate through the connecting rod mechanism.

[0018] Furthermore, a plurality of supporting bull leg portions are convexly provided on the inner side surface of the gate pier; when the gate plate closes the navigation gate hole, the supporting bull leg portions are used to support and limit the lower part of the main gate leaf.

[0019] Furthermore, when the gate plate is arranged vertically, the top surface of the top of the gate pier is not higher than the bottom surface of the side convex gate leaf.

[0020] Further, the gate also includes a front guide plate and a rear guide plate;

[0021] The front deflector is transversely fixed on the top of the two gate piers and is located in front of the rotating shaft; when the gate is flipped to a state suitable for navigation, the front plate surface of the gate is flush with the top surface of the front deflector, and the gate and the front deflector are butted against each other with a gap;

[0022] The rear deflector is transversely fixed on the top of the two gate piers and is located behind the rotating shaft; when the gate is flipped to a state suitable for navigation, the front plate surface of the gate is flush with the top surface of the rear deflector, and the gate and the rear deflector are butted against each other with a gap;

[0023] The front guide plate is used to reduce the impact of the upstream water flow of the navigation lock hole on the turned gate plate, and to prevent foreign objects in the water from directly impacting the gate plate;

[0024] The rear guide plate is used to reduce the impact of water flowing through the navigation lock hole on the flipped gate.

[0025] Furthermore, a recessed position is provided on the top of the rear half of each gate pier; the recessed position is longitudinally located between the rotating shaft and the rear guide plate; the recessed position is used for the side convex gate leaves to be embedded in the recessed position one by one when the gate plate is flipped to the horizontal plane.

[0026] The utility model further provides a navigation water lock, which is horizontally arranged in the navigation lock hole and comprises a plurality of groups of inverted convex U-shaped flap gates as described in any one of the above items, which are arranged side by side.

[0027] The beneficial effects of the utility model are:

[0028] Since there is no building on the top of the gate pier and multiple holes are used in combination, the navigation width is not limited by any size and meets the requirements of large-span navigation width. The utility model also ensures water retaining safety, reduces operating energy consumption, saves engineering investment, and improves the reliability of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of an inverted convex-shaped flap gate of the utility model when the gate plate is in a vertical state;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of an inverted convex-shaped flap gate of the utility model when the gate plate is in a horizontal state;

[0031] Figure 3 This is a three-dimensional structural view of the gate plate and the rotating shaft involved in the utility model;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of a navigation sluice of the utility model;

[0033] Description of reference numerals:

[0034] Gate plate 1; rotating shaft 2; gate pier 3; shaft driving mechanism 4; maintenance door slot 5; main door leaf 11; side convex door leaf 12; supporting bull leg portion 31; recessed position 32; equipment installation cavity 33; crank arm 41; hoist 42; rear guide plate 8; front guide plate 9. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further clearly and completely described below in combination with the embodiments of the utility model. It should be noted that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", and "right" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0037] The terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "second", "third", "fourth" features may explicitly or implicitly include one or more of the features.

[0038] Example 1

[0039] like Figure 1-Figure 3 As shown:

[0040] The present embodiment proposes an inverted convex U-shaped flap gate, which is horizontally arranged in the navigation gate hole and is used for water retaining, flood discharge and navigation. The gate includes a gate plate 1, two rotating shafts 2, a shaft driving mechanism 4 of no more than two, two gate piers 3 and two supporting bearings; the gate piers 3 are provided with equipment installation cavities, and at least one equipment installation cavity is provided with a shaft driving mechanism 4; the front view structure of the gate plate 1 is inverted convex U-shaped, and the gate plate 1 includes a rectangular main gate leaf 11 and two side convex gate leaves 12 respectively arranged on both sides of the upper part of the main gate leaf 11; one end of the two rotating shafts 2 is fixedly and symmetrically connected to both sides of the vertical middle part of the gate plate 1; the other end of the two rotating shafts 2 respectively passes through the side surfaces of the two gate piers 3 to enter the equipment installation cavity of the gate pier 3, and is supported on the gate pier 3 through one-to-one corresponding supporting bearings;

[0041] When the gate plate 1 is in a vertical state, the navigation gate hole is closed to block water and store water. The part of the main gate leaf 11 located vertically above the rotating shaft 2 is the upper part of the main gate leaf 11, and the part of the main gate leaf 11 located vertically below the rotating shaft 2 is the lower part of the main gate leaf 11. The side convex gate leaf 12 is located above the top of the corresponding gate pier 3, and the side of the gate plate 1 that blocks water is the front plate surface of the gate plate 1;

[0042] When the gate plate 1 is flipped to a horizontal state, the upper water flow channel area above the rotating shaft 2 of the navigation lock hole is used as a waterway for ships to navigate, and the lower water flow channel area below the rotating shaft 2 of the navigation lock hole is used for water to pass through and carry away sediment;

[0043] The shaft driving mechanism 4 is used to drive the rotating shaft 2 to rotate;

[0044] The rotating shaft 2 is used to turn the gate plate 1 around the axis of the rotating shaft 2;

[0045] The gate plate 1 is used to block water and store water when closing the navigation lock hole and is driven by the rotating shaft 2 to turn over.

[0046] Optimally, the support bearings are installed in the equipment installation cavity in a one-to-one correspondence.

[0047] Optimally, the shaft hole of the gate pier 3 through which the rotating shaft 2 passes is provided with a waterproof sealing device.

[0048] Further optimized, the gate piers 3 are all provided with upstream maintenance gate slots and downstream maintenance gate slots, and such maintenance gate slots 5 are used to improve the maintenance conditions of the gates.

[0049] For further optimization, a buoyancy box is provided at the lower part of the main door leaf 11 , and the buoyancy box is used to reduce the driving force of the shaft driving mechanism 4 .

[0050] Optimally, the top of the gate pier 3 is not higher than the front surface of the gate plate 1 when the gate plate 1 is flipped to a horizontal state, thereby meeting the requirements of the navigable water depth.

[0051] Optimally, the shaft driving mechanism 4 includes a gate hoist 42 and a connecting rod mechanism; the connecting rod mechanism includes a plurality of crank arms 41; the gate hoist 42 is used to drive the connecting rod mechanism to move, thereby driving the rotating shaft 2 to rotate through the connecting rod mechanism.

[0052] Optimally, a plurality of supporting bull leg portions 31 are convexly provided on the inner side surface of the gate pier 3 ; when the gate plate 1 closes the navigation gate hole, the supporting bull leg portions 31 are used to support and limit the lower part of the main gate leaf 11 .

[0053] Optimally, when the gate plate 1 is arranged vertically, the top surface of the top of the gate pier 3 is not higher than the bottom surface of the side protruding gate leaf 12 .

[0054] Optimally, the gate further comprises a front guide plate 9 and a rear guide plate 8;

[0055] The front deflector 9 is transversely fixed on the top of the two gate piers 3 and is located in front of the rotating shaft 2; when the gate 1 is turned over to a state suitable for navigation, the front plate surface of the gate 1 is flush with the top surface of the front deflector 9, and the gate 1 and the front deflector 9 are butted against each other with a gap;

[0056] The rear guide plate 8 is transversely fixed on the top of the two gate piers 3 and is located behind the rotating shaft 2; when the gate plate 1 is turned over to a state suitable for navigation, the front plate surface of the gate plate 1 is flush with the top surface of the rear guide plate 8, and the gate plate 1 and the rear guide plate 8 are butted against each other with a gap;

[0057] The front guide plate 9 is used to reduce the impact of the upstream water flow of the navigation lock hole on the turned gate plate 1, and to prevent foreign objects in the water from directly impacting the gate plate 1;

[0058] The rear guide plate 8 is used to reduce the impact of the water flow passing through the navigation lock hole on the turned gate plate 1.

[0059] Optimally, a recessed position 32 is provided on the top of the rear half of each gate pier 3; the recessed position 32 is longitudinally located between the rotating shaft 2 and the rear guide plate 8; the recessed position 32 is used for the side convex door leaves 12 to be embedded in the recessed position 32 one by one when the gate plate 1 is flipped to the horizontal plane.

[0060] Specifically, protruding supporting corbels 31 (preferably concrete supporting corbels) can be provided on both sides of the gate pier 3 to withstand water pressure, thereby effectively reducing the horizontal load transmitted to the rotating shaft 2 by the supporting corbels; a plurality of protruding supporting corbels 31 are provided on each side of the lower facade of the gate pier 3 as needed, which jointly withstand the water pressure transmitted by the gate plate 1 with the rotating shaft 2.

[0061] Specifically, a buoyancy box may be provided at a specific lower position of the gate plate 1 as needed, which is used to partially or completely balance the deadweight of the equipment when the gate plate 1 is in water, thereby reducing the load on the rotating shaft 2; the buoyancy of the buoyancy box balances the deadweight of the equipment when the gate plate 1 is in water, and can greatly reduce the torque required for the gate plate 1 to rotate when opening and closing, thereby effectively reducing the capacity of the gate opening and closing machine 42; if the gate plate 1 is relatively high, a buoyancy box may be provided in certain areas at the lower part of the main gate leaf 11.

[0062] Specifically, the axis of the rotating shaft 2 can be set above the water pressure action line when the gate 1 is fully closed and water-blocking. At this time, the torque formed by the water pressure on the axis of the rotating shaft 2 ensures that the gate is in the closed position. There is no need to set a locking device for water blocking, which simplifies the equipment configuration and gate operation process.

[0063] Specifically, the gate pier 3 can be provided with an inspection gate slot 5, and the gate can be inspected when the upstream water level is lower than the normal high water level; the gate inspection process is: when the upstream water level is equal to or lower than the normal high water level, a special buoy device can be used in conjunction with the gate pier 3 to extend the inspection gate slot 5 from the top surface of the middle gate pier 3 to above the water surface, and a floating crane can be used to accurately operate the inspection gate to enter the inspection gate slot 5.

[0064] Specifically, the operation process of the inverted convex flap gate of this embodiment is: the shaft driving mechanism 4 drives the rotating shaft 2 to rotate within the range of 0°-90°, and the gate plate 1 is either upright to block water, or lying on the top of the gate pier 3 so that flow can flow both above and below the gate plate 1 to meet the water discharge requirements. There is no building in the middle of the upper part of the orifice, which can meet the navigation width requirements.

[0065] Specifically, the inverted convex flap gate of this embodiment is generally opened and closed in still water. If it needs to be opened and closed with moving water, its total water retaining height should not be too large (special research should be conducted when it is greater than 8m).

[0066] Example 2

[0067] Embodiment 2 is an application scheme of Embodiment 1;

[0068] like Figure 1-Figure 4 As shown:

[0069] This embodiment proposes a navigation water lock, which is horizontally arranged in the navigation lock hole, including multiple groups of inverted convex flap gates arranged side by side as described in any design scheme in Example 1.

[0070] Specifically, each inverted convex flap gate divides the navigation lock hole into N (N≥2) gate holes with smaller widths, and each gate hole is provided with a gate plate 1. When the gate plate 1 is upright, the N gate plates 1 form a continuous water retaining facility to close the navigation lock hole with a large span; when the water level is high, the gate plate 1 lies flat in the middle of the navigation lock hole, and the flow above and below it meets the water discharge requirements. There is no building in the middle of the upper part of the navigation lock hole, which can meet the navigation width requirements; the navigation lock hole provided with the navigation sluice as described above forms a large-span navigation hole, and this span can be of any size without restriction; the lateral convex gate leaf 12 needs to be provided with a special water-stopping device to form a continuous water-stopping structure with the gate pier 3 and the lateral convex gate leaf 12 of the adjacent gate.

[0071] Specifically, the inverted convex flap gate of the present embodiment is based on the conventional flap gate, and a convex door leaf 12 is arranged on the upper part of the main door leaf, which cooperates with the same gate plate 1 as the adjacent gate to close the upper space of the gate pier 3, thereby forming a continuous water retaining structure, greatly reducing the size of a single door leaf, reducing the difficulty of equipment manufacturing and engineering construction, and making the navigation width of the navigation gate hole unrestricted; and the opening and closing equipment is arranged in the equipment room inside the gate pier 3, which improves the working and maintenance conditions of the opening and closing equipment.

[0072] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An inverted convex flap gate, arranged horizontally in a navigation gate hole, used for water retaining, flood discharge and navigation, the gate comprises a gate plate (1), two rotating shafts (2), a shaft driving mechanism (4) not more than two in number, two gate piers (3) and two supporting bearings, characterized in that: The gate pier (3) is provided with an equipment installation cavity, and at least one equipment installation cavity is provided with a shaft driving mechanism (4); the front view structure of the gate plate (1) is in the shape of an inverted convex character, and the gate plate (1) comprises a rectangular main door leaf (11) and two side convex door leaves (12) respectively arranged on both sides of the upper part of the main door leaf (11); one end of the two rotating shafts (2) are respectively fixedly and symmetrically connected to both sides of the vertical middle part of the gate plate (1); the other end of the two rotating shafts (2) respectively passes through the side surfaces of the two gate piers (3) to enter the equipment installation cavity of the gate pier (3), and is supported on the gate pier (3) through one-to-one corresponding support bearings; When the gate plate (1) is in a vertical state, it closes the navigation gate hole to block water and store water; the portion of the main gate leaf (11) located vertically above the rotating shaft (2) is the upper portion of the main gate leaf (11); the portion of the main gate leaf (11) located vertically below the rotating shaft (2) is the lower portion of the main gate leaf (11); the lateral convex gate leaves (12) are located above the tops of the corresponding gate piers (3); and the side of the gate plate (1) that blocks water is the front plate surface of the gate plate (1); When the gate plate (1) is turned over to a horizontal state, the upper water flow channel area above the rotating shaft (2) of the navigation lock hole is used as a waterway for ships to navigate, and the lower water flow channel area below the rotating shaft (2) of the navigation lock hole is used for water to pass through and carry away sediment; The shaft driving mechanism (4) is used to drive the rotating shaft (2) to rotate; The rotating shaft (2) is used to turn the gate plate (1) around the axis of the rotating shaft (2); The gate plate (1) is used to block water and store water when closing the navigation lock hole and is driven by the rotating shaft (2) to turn over.

2. The inverted convex flap gate according to claim 1, characterized in that: The support bearings are installed in the equipment installation cavity in a one-to-one correspondence.

3. The inverted convex flap gate according to claim 1, characterized in that: The shaft hole of the gate pier (3) through which the rotating shaft (2) passes is provided with a waterproof sealing device; The gate piers (3) are all provided with upstream and downstream inspection gate slots, and the inspection gate slots are used to improve the inspection conditions of the gates; A buoyancy box is provided at the lower part of the main door leaf (11), and the buoyancy box is used to reduce the driving force of the shaft driving mechanism (4).

4. The inverted convex flap gate according to claim 1, characterized in that: The top of the gate pier (3) is not higher than the front plate surface of the gate plate (1) when the gate plate (1) is flipped to a horizontal state, thereby meeting the requirements of the navigable water depth.

5. The inverted convex flap gate according to claim 1, characterized in that: The shaft driving mechanism (4) comprises a hoist (42) and a connecting rod mechanism; the connecting rod mechanism comprises a plurality of crank arms (41); the hoist (42) is used to drive the connecting rod mechanism to move, thereby driving the rotating shaft (2) to rotate through the connecting rod mechanism.

6. The inverted convex flap gate according to claim 1, characterized in that: A plurality of supporting brackets (31) are convexly provided on the inner side surface of the gate pier (3); when the gate plate (1) closes the navigation gate hole, the supporting brackets (31) are used to support and limit the lower part of the main gate leaf (11).

7. The inverted convex flap gate according to claim 1, characterized in that: When the gate plate (1) is arranged vertically, the top surface of the top of the gate pier (3) is not higher than the bottom surface of the side convex gate leaf (12).

8. The inverted convex flap gate according to any one of claims 1 to 7, characterized in that: The gate also includes a front guide plate (9) and a rear guide plate (8); The front deflector (9) is transversely fixedly arranged on the top of the two gate piers (3) and is located in front of the rotating shaft (2); when the gate (1) is turned over to a state suitable for navigation, the front plate surface of the gate (1) is flush with the top surface of the front deflector (9), and the gate (1) and the front deflector (9) are butted with each other in a gap; The rear guide plate (8) is transversely fixedly arranged on the top of the two gate piers (3) and is located behind the rotating shaft (2); when the gate plate (1) is turned over to a state suitable for navigation, the front plate surface of the gate plate (1) is flush with the top surface of the rear guide plate (8), and the gate plate (1) and the rear guide plate (8) are butted with each other in a gap; The front guide plate (9) is used to reduce the impact of the water flow upstream of the navigation lock hole on the turned gate plate (1) and to prevent foreign matter in the water from directly impacting the gate plate (1); The rear guide plate (8) is used to reduce the impact of the water flow passing through the navigation lock hole on the gate plate (1) after turning over.

9. The inverted convex flap gate according to claim 8, characterized in that: A recessed position (32) is provided at the top of the rear half of each gate pier (3); the recessed position (32) is longitudinally located between the rotating shaft (2) and the rear guide plate (8); the recessed position (32) is used for the side convex door leaves (12) to be embedded in the recessed position (32) one by one when the gate plate (1) is turned over to a horizontal plane.

10. A navigation lock, arranged horizontally in a navigation lock hole, characterized in that: It comprises a plurality of groups of inverted convex flap gates as described in any one of claims 1 to 9 which are arranged side by side.

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