CN111501690B - Flap gate with dredging function - Google Patents
Flap gate with dredging function Download PDFInfo
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- CN111501690B CN111501690B CN202010255578.7A CN202010255578A CN111501690B CN 111501690 B CN111501690 B CN 111501690B CN 202010255578 A CN202010255578 A CN 202010255578A CN 111501690 B CN111501690 B CN 111501690B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
- E02B7/44—Hinged-leaf gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
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- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a flap gate with a dredging function, which comprises a gate and a gate pier, wherein a hydraulic hoist is arranged on the gate pier, a connecting rod is arranged at the end part of a piston rod of the hydraulic hoist and is hinged with a traction rod, the other end of the traction rod is hinged with the water facing side of the gate, a bottom shaft is arranged at the bottom of the gate, the bottom shaft is rotatably arranged on the gate pier, a plurality of water outlets are arranged at the bottom of the gate, air bags for filling the water outlets are arranged in the gate, and the air bags are communicated with a first air pump through air pipes. Through being equipped with the outlet in the gate bottom, fill the gassing through first air pump control gasbag, realize closing or opening the outlet to the silt of gate upper reaches is conveniently discharged, reduces the siltation, realizes the desilting function.
Description
Technical Field
The invention relates to the field of water conservancy gates, in particular to a flap gate with a dredging function.
Background
The water conservancy gate is widely applied in the aspect of adjusting and storing the water level of the river channel, thereby strengthening the ecological environment protection of the river channel and improving the quality of the living environment of local people. The prior flap gate is widely applied to various river channels due to simple structure, but the prior flap gate is difficult to overhaul and hidden troubles are difficult to eliminate; the hydraulic hoist is generally positioned on a riverbed, and has a complex structure and is difficult to maintain; the bottom shaft type flap gate generally has the problem of upstream sediment accumulation, generally adopts manual dredging, and the large-scale construction of engineering volume is complicated and has damage to the gate panel in different degrees. The corresponding lift gate has the problems of large work load for installing the working bridge bent frame, complex opening and closing process of the winch hoist and easy abrasion. If the characteristics of the two can be combined to solve the problems, a wider application prospect is brought.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flap gate with a dredging function, and overcomes the defect of serious upstream siltation of the traditional bottom shaft type flap gate.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a flap gate with desilting function, includes gate and gate pier, be equipped with hydraulic hoist on the gate pier, hydraulic hoist's tailpiece of the piston rod portion is equipped with the connecting rod, and the connecting rod is articulated with the lead rod, and the lead rod other end is articulated with the water-facing side of gate, and the gate bottom is equipped with the bottom shaft, and the bottom shaft rotates to be installed on the gate pier, and the gate bottom is equipped with a plurality of outlet, is equipped with the gasbag that is used for filling the outlet in the gate, and the gasbag passes through trachea and first air pump intercommunication.
In the preferred scheme, a plurality of air nozzles are arranged on the water facing side of the gate and are communicated with the second air pump through air pipes.
In a further scheme, through holes through which the air supply pipes penetrate are formed in two ends of the bottom shaft, and arc-shaped slotted holes through which the air supply pipes penetrate are formed in two ends of the upper side of the bottom shaft respectively.
In a further scheme, the dead axle both ends are equipped with the tight pulley, and the gate upper end left and right sides is equipped with telescopic wheel mechanism, and telescopic wheel mechanism tip is equipped with the telescopic wheel, and the gate pier inboard be equipped with tight pulley and telescopic wheel complex guide rail, be equipped with on the gate pier and carry out the hydraulic means who fixes to the dead axle, hydraulic means's flexible end is equipped with spacing end, the dead axle tip be equipped with spacing end complex recess.
In a further scheme, the guide rail comprises an inclined section and a horizontal section, and the inclined section and the horizontal section are in transition connection through an arc.
In a further scheme, an arc-shaped groove for limiting the air pipe is arranged in the guide rail.
In a further scheme, the telescopic wheel mechanism comprises a push cylinder, a rotating shaft of the telescopic wheel is installed in the push cylinder, a hydraulic telescopic device for pushing the telescopic wheel is arranged on the inner side of the gate pier, a plurality of limiting slide blocks are arranged on the outer side of the push cylinder, a plurality of arc-shaped limiting pieces are arranged in the gate, limiting slide grooves matched with the limiting slide blocks are arranged on the arc-shaped limiting pieces, spacing grooves are formed among the arc-shaped limiting pieces, and limiting teeth are arranged at one ends, far away from the push cylinder, of the arc-shaped limiting pieces; still including the tight seat in top, the tight seat in top one side is equipped with the pinion rack of a plurality of cartridges at the interval inslot, and the tight seat opposite side in top is equipped with compression spring, and the thickness of pinion rack is greater than the thickness of the spacing piece of arc, and the tip of pinion rack is equipped with the skewed tooth with spacing tooth meshing.
In a further scheme, one end of the push cylinder, which is close to the toothed plate, is of a sawtooth structure.
In a further scheme, a through hole for the extension spring to pass through is formed in the jacking seat, one end of the extension spring is connected with the gate, and the other end of the extension spring is connected with a rotating shaft of the telescopic wheel.
The invention also provides an operation method of the flap gate with the dredging function, which comprises the following steps: the method comprises the following steps: starting a second air pump to supply air to the gate air nozzle through an air pipe to jet out a large amount of high-pressure air, so that the water body forms spiral flow and structurally disordered vortex at the river bottom; step two: starting a first air pump to control the air bag to shrink, discharging deposited silt from the bottom of the water outlet, inflating the air bag, and plugging the water outlet to recover normal water retaining; step three: the telescopic wheel mechanism drives the telescopic wheel to retract and separate from the guide rail, the hydraulic device keeps locking the bottom shaft, the hydraulic hoist is started, a piston rod of the hydraulic hoist is shortened, the gate rotates around the bottom shaft, and the gate flap function is realized; step four: the telescopic wheel mechanism drives the telescopic wheel to extend out to be matched with the guide rail, a piston rod of the hydraulic device retracts to release the locking of the bottom shaft, the piston rod of the hydraulic hoist is shortened, and the gate rises along the guide rail under the support of the telescopic wheel and the fixed wheel to realize the lifting function.
According to the flap gate with the dredging function, the water outlet is formed in the bottom of the gate, the first air pump is used for controlling the air bag to inflate and deflate, and the water outlet is closed or opened, so that sludge on the upstream of the gate can be conveniently discharged, siltation is reduced, and the dredging function is realized.
Preferably, through setting up the air jet, can be when gate upstream face riverbed bottom silts up to the certain degree, the second air pump passes through the trachea and to the air jet air feed of gate, erupts a large amount of high-pressure gas, high-pressure gas's orbit is different angles with the river bottom, make the water form spiral flow and the turbulent vortex of structure at the bottom of a river, improved the ability of holding with the sand of rivers, start the shrink of first air pump control gasbag, the silt of silting up this moment can be followed outlet bottom discharge fast and realized high-efficient desilting function.
When the air bag is replaced or the gate needs to be overhauled, the telescopic wheels are extended into the guide rail, and the two wheels at the upper end and the lower end of the gate move in the guide rail, so that the gate can be lifted and laid to reach the overhauling position. The multifunctional water-saving air bag is simple and practical in structure, diversified in function, capable of achieving multiple functions of water passing, gas dredging and lifting, lying and overhauling of the air bag, capable of meeting the current energy-saving and ecological environment-friendly idea, important in guaranteeing water ecological safety, and high in industry application prospect.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the operation of the present invention;
FIG. 3 is a partial structure diagram of the present invention in a lifting state;
FIG. 4 is a partial perspective view of the drain opening of the present invention;
FIG. 5 is a partial perspective view of the bottom shaft of the present invention;
FIG. 6 is a structural view of the telescopic mechanism of the present invention;
FIG. 7 is an operational view of the telescopic wheel mechanism of the present invention;
in the figure: the gate comprises a gate 1, a gate pier 2, a hydraulic hoist 3, a connecting rod 4, a traction connecting rod 5, a bottom shaft 6, an air bag 7, an arc-shaped groove 8, a first air pump 9, an air nozzle 10, a hydraulic device 11, a second air pump 12, a fixed wheel 13, a telescopic wheel 14, a guide rail 15, a limiting end 16, a push cylinder 17, a hydraulic telescopic device 18, a limiting sliding block 19, an arc-shaped limiting sheet 20, a jacking seat 21, a toothed plate 22, a compression spring 23, an extension spring 24, a water outlet 101, an arc-shaped slotted hole 601, a groove 602, a limiting sliding groove 2001, a spacing groove 2002, a limiting tooth 2003 and oblique teeth 2201.
Detailed Description
Example 1: as shown in figures 1 and 4, the flap gate with the dredging function comprises a gate 1 and a gate pier 2, wherein the gate 1 is of a cavity steel structure, partial gravity is counteracted by buoyancy to reduce the operation load of the gate, the gate pier 2 is of a cavity structure, a hydraulic hoist 3 is arranged on the inner side of the gate pier 2, a piston rod of the hydraulic hoist 3 extends out of the gate pier 2 and is connected with a connecting rod 4, the piston rod of the hydraulic hoist 3 is obliquely arranged, the inclination angle is 60 degrees, the connecting rod 4 is hinged with a connecting rod 5, the other end of the connecting rod 5 is hinged with the water facing side of the gate 1, specifically, the water facing side of the gate 1 is provided with a hinged seat, the connecting rod 5 is connected with the hinged seat through a pin, the bottom of the gate 1 is provided with a bottom shaft 6, the bottom shaft 6 is rotatably arranged on the gate pier 2, the bottom of the gate 1 is provided with a plurality of water outlets 101, and an air bag 7 for filling the water outlets 101 is arranged in the gate 1, the air bag 7 is communicated with a first air pump 9 through an air pipe.
The air bag 7 is controlled by the first air pump 9 to inflate and deflate, so that the water outlet 101 is closed or opened, sludge on the upstream of the gate 1 is conveniently discharged, siltation is reduced, and a desilting function is realized.
Preferably, a plurality of air nozzles 10 are arranged on the water facing side of the gate 1, and the air nozzles 10 are communicated with a second air pump 12 through air pipes. The air nozzle 10 is arranged obliquely downwards, and the air nozzle 10 can be arranged at different angles.
When gate 1 upstream face riverbed bottom silted up to a certain degree, second air pump 12 passed through the trachea to gate air nozzle 10 air feed, erupted a large amount of high-pressure gas, high-pressure gas's orbit is different angles with the river bottom, makes the water form spiral flow and the disorderly vortex of structure at the bottom of a river, has improved the ability of holding sand by oneself of rivers, starts the shrink of first air pump 9 control gasbag, and the silt of siltation this moment can be followed outlet 101 bottom discharge fast and realized high-efficient desilting function.
Further, as shown in fig. 5, through holes for passing the air supply pipe are provided at two ends of the bottom shaft 6, and arc-shaped slots 601 for passing the air supply pipe are respectively provided at two ends of the upper side of the bottom shaft 6. Wear to establish in bottom shaft 6 with the trachea, realize tracheal hiding and arrange, through setting up arc slotted hole 601, prevent that the trachea from influencing the board that turns over of gate 1.
Example 2: different from embodiment 1, the bottom shaft 6 both ends are equipped with the tight pulley 13, and the gate 1 upper end left and right sides is equipped with telescopic wheel mechanism, and telescopic wheel mechanism tip is equipped with telescopic wheel 14, and telescopic wheel mechanism can be for setting up the pneumatic cylinder in gate 1, and the tip of the piston rod of pneumatic cylinder is equipped with telescopic wheel 14, 2 inboard sides of gate pier be equipped with tight pulley 13 and telescopic wheel 14 complex guide rail 15, be equipped with hydraulic means 11 that carries out the fixed to bottom shaft 6 on the gate pier 2, hydraulic means 11's flexible end is equipped with spacing end 16, bottom shaft 6 tip be equipped with spacing end 16 complex recess 602.
The front end of the hydraulic device 11 is driven by hydraulic power to be pushed into the groove 602, the bottom shaft 6 is locked, the fixed wheel 13 cannot move up and down in the guide rail 15, and the bottom shaft 6 becomes a stable rotating shaft; meanwhile, under the action of downward extrusion force generated by the limiting end head 16 on the groove 602, the gate 1 is attached to the bottom plate more tightly and effectively, and the water seepage situation is reduced.
The guide rail 15 comprises an inclined section and a horizontal section, and the inclined section and the horizontal section are in transition connection through an arc.
In fig. 2, a is a normal water retaining state of the gate, a normal water retaining state of the gate 1 is achieved, the upper and lower end retractable wheels 14 and the fixed wheels 13 on two sides of the gate 1 are both located in the guide rail 15 and serve as water retaining supporting stress points of the gate 1, and the hydraulic device 11 locks the bottom shaft 6, so that the fixed wheels 13 cannot move along the guide rail 15.
In the state B of the figure 2, the telescopic wheel mechanism drives the telescopic wheel 14 to retract and separate from the guide rail 15, the hydraulic device 11 keeps locking the bottom shaft 6, the fixed wheel 13 cannot move along the guide rail 15, the hydraulic hoist 3 is started, the piston rod of the hydraulic hoist 3 is shortened, the gate 1 rotates around the bottom shaft 6, and the gate flap function is realized.
The piston rod of the hydraulic hoist 3 extends to control the gate 1 to recover the original normal water retaining state, the retractable wheel mechanism drives the retractable wheel 14 to extend and be matched with the guide rail 15, the piston rod of the hydraulic device 11 retracts, and the locking of the bottom shaft 6 is released. The fixed wheels 13 can travel along the guide rails 15. The piston rod of the hydraulic hoist 3 is shortened, and the gate 1 ascends along the guide rail 15 under the support of the telescopic wheel 14 and the fixed wheel 13 to realize the function of lying and rising. The gate 1 is lifted and laid half way, as shown in the state C in figure 2, the bottom hole overflows to control the water level of the river channel, and simultaneously, garbage is intercepted to avoid floating garbage from being discharged into the downstream river channel.
The gate 1 is fully raised and laid, and rapidly overflowed, or the gate 1 is overhauled, as shown in state D in fig. 2.
An arc-shaped groove 8 for limiting the air pipe is arranged in the guide rail 15. The arc-shaped groove 8 is arranged to accommodate an air pipe, so that the air pipe is prevented from influencing the action of the gate 1.
Example 3: different from the embodiment 2, as shown in fig. 6 and 7, the retractable wheel mechanism includes a push cylinder 17, a rotating shaft of a retractable wheel 14 is installed in the push cylinder 17, a hydraulic retractable device 18 for pushing the retractable wheel 14 is arranged on the inner side of the gate pier 2, a plurality of limiting slide blocks 19 are arranged on the outer side of the push cylinder 17, a plurality of arc-shaped limiting pieces 20 are arranged in the gate 1, limiting slide grooves 2001 matched with the limiting slide blocks 19 are arranged on the arc-shaped limiting pieces 20, spacing grooves 2002 are arranged between the arc-shaped limiting pieces 20, and limiting teeth 2003 are arranged at one ends, far away from the push cylinder 17, of the arc-shaped limiting pieces; the anti-collision device is characterized by further comprising a jacking seat 21, wherein a plurality of toothed plates 22 inserted in the spacing grooves 2002 are arranged on one side of the jacking seat 21, a compression spring 23 is arranged on the other side of the jacking seat 21, the thickness of each toothed plate 22 is larger than that of each arc-shaped limiting plate 20, and oblique teeth 2201 meshed with the limiting teeth 2003 are arranged at the end parts of the toothed plates 22.
One end of the push cylinder 17 close to the toothed plate 22 is of a sawtooth structure.
The initial telescopic wheel 14 is initially positioned in the guide rail 15, the hydraulic telescopic device 18 pushes the telescopic wheel 14 for the first time and also pushes the push cylinder 17, the push cylinder 17 moves backwards in parallel along the limit sliding groove 2001 under the action of the limit sliding block 19 until the push cylinder 17 pushes the toothed plate 22 out of the spacing groove 2002, at the moment, the inclined teeth 2201 and the limit teeth 2003 form an inclined plane, under the action of the compression spring 23, the inclined teeth 2201 slide relatively along the inclined plane to generate radial force to press the teeth 22 and the jacking seat 21 to rotate for 45 degrees and are clamped with the limit teeth 2003, and the whole process moves backwards to enable the telescopic wheel 14 to leave the guide rail 15 and retract into the gate 1. Similarly, the hydraulic expansion device 18 pushes the expansion wheel 14 again, the push cylinder 17 moves backwards in parallel along the limiting sliding groove 2001 under the action of the limiting sliding block 19 until the push cylinder 17 ejects the toothed plate 22 until the inclined teeth 2201 and the limiting teeth 2003 form inclined planes again, the inclined teeth 2201 slide relatively along the inclined planes to generate radial force to press the toothed plate 22 and the abutting seat 21 to rotate 45 degrees under the action of the compression spring 23, the toothed plate 22 is inserted into the spacing groove 2002 again, the toothed plate 22 moves along the spacing groove 2002 under the action of the compression spring 23 to push the push cylinder 17 to move outwards, and the expansion wheel 14 extends out of the gate 1 and returns to the guide rail 15 again due to the integral forward movement.
And a through hole for the extension spring 24 to pass through is formed in the jacking seat 21, one end of the extension spring 24 is connected with the gate 1, and the other end of the extension spring is connected with a rotating shaft of the telescopic wheel 14.
By providing the extension spring 24, the retractable wheel 14 is connected to prevent the escape from the lock gate 1.
Claims (7)
1. The utility model provides a flap gate with desilting function, includes gate (1) and gate pier (2), its characterized in that: the gate comprises a gate pier (2), a hydraulic hoist (3) is arranged on the gate pier (2), a connecting rod (4) is arranged at the end part of a piston rod of the hydraulic hoist (3), the connecting rod (4) is hinged to a traction connecting rod (5), the other end of the traction connecting rod (5) is hinged to the water facing side of a gate (1), a bottom shaft (6) is arranged at the bottom of the gate (1), the bottom shaft (6) is rotatably installed on the gate pier (2), a plurality of water outlets (101) are arranged at the bottom of the gate (1), an air bag (7) used for filling the water outlets (101) is arranged in the gate (1), the air bag (7) is communicated with a first air pump (9) through an air pipe, a plurality of air nozzles (10) are arranged at the water facing side of the gate (1), the air nozzles (10) are communicated with a second air pump (12) through the air pipe, fixing wheels (13) are arranged at two ends of the bottom shaft (6), and telescopic retractable wheel mechanisms are arranged at the left side and the right side of the upper end of the gate (1), the end part of the telescopic wheel mechanism is provided with a telescopic wheel (14), the inner side of the gate pier (2) is provided with a guide rail (15) matched with the fixed wheel (13) and the telescopic wheel (14), the gate pier (2) is provided with a hydraulic device (11) for fixing the bottom shaft (6), the telescopic end of the hydraulic device (11) is provided with a limiting end head (16), the end part of the bottom shaft (6) is provided with a groove (602) matched with the limiting end head (16), the telescopic wheel mechanism comprises a push cylinder (17), a rotating shaft of the telescopic wheel (14) is arranged in the push cylinder (17), the inner side of the gate pier (2) is provided with a hydraulic telescopic device (18) for pushing the telescopic wheel (14), the outer side of the push cylinder (17) is provided with a plurality of limiting sliding blocks (19), the gate (1) is internally provided with a plurality of arc-shaped limiting sheets (20), the arc-shaped limiting sliding grooves (2001) matched with the limiting sliding blocks (19) are arranged on the arc-shaped limiting sheets (20), and spacing grooves (2002) are arranged between the arc-shaped limiting sheets (20), one end of the arc-shaped limiting sheet (20) far away from the push cylinder (17) is provided with a limiting tooth (2003); the anti-collision device is characterized by further comprising a jacking seat (21), wherein a plurality of toothed plates (22) inserted in the spacing grooves (2002) are arranged on one side of the jacking seat (21), a compression spring (23) is arranged on the other side of the jacking seat (21), the thickness of each toothed plate (22) is larger than that of each arc-shaped limiting sheet (20), and oblique teeth (2201) meshed with the limiting teeth (2003) are arranged at the end parts of the toothed plates (22).
2. The flap gate with the dredging function according to claim 1, wherein: through holes through which the air supply pipes penetrate are formed in two ends of the bottom shaft (6), and arc-shaped slotted holes (601) through which the air supply pipes penetrate are formed in two ends of the upper side of the bottom shaft (6) respectively.
3. The flap gate with the dredging function according to claim 1, wherein: the guide rail (15) comprises an inclined section and a horizontal section, and the inclined section and the horizontal section are in transition connection through an arc.
4. The flap gate with the dredging function according to claim 1, wherein: an arc-shaped groove (8) for limiting the air pipe is arranged in the guide rail (15).
5. The flap gate with the dredging function according to claim 1, wherein: one end of the push cylinder (17) close to the toothed plate (22) is of a sawtooth structure.
6. The flap gate with the dredging function according to claim 1, wherein: and a through hole for the extension spring (24) to pass through is formed in the jacking seat (21), one end of the extension spring (24) is connected with the gate (1), and the other end of the extension spring is connected with a rotating shaft of the telescopic wheel (14).
7. The method of operating a flap gate according to any one of claims 1 to 6, characterized by comprising the steps of: the method comprises the following steps: starting a second air pump (12) to supply air to the gate air nozzle (10) through an air pipe to jet out a large amount of high-pressure air, so that the water body forms spiral flow and vortex with disordered structure at the bottom of the river; step two: starting a first air pump (9) to control the air bag (7) to contract, discharging deposited silt from the bottom of the water outlet (101), inflating the air bag (7), and plugging the water outlet (101) to recover normal water retaining; step three: the telescopic wheel mechanism drives the telescopic wheel (14) to retract, the telescopic wheel is separated from the guide rail (15), the hydraulic device (11) keeps locking the bottom shaft (6), the hydraulic hoist (3) is started, a piston rod of the hydraulic hoist (3) is shortened, the gate (1) rotates around the bottom shaft (6), and the gate flap function is realized; step four: the telescopic wheel mechanism drives the telescopic wheel (14) to extend out and is matched with the guide rail (15), a piston rod of the hydraulic device (11) retracts to release the locking of the bottom shaft (6), the piston rod of the hydraulic hoist (3) is shortened, and the gate (1) rises along the guide rail (15) under the support of the telescopic wheel (14) and the fixed wheel (13) to realize the functions of rising and lying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255578.7A CN111501690B (en) | 2020-04-02 | 2020-04-02 | Flap gate with dredging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255578.7A CN111501690B (en) | 2020-04-02 | 2020-04-02 | Flap gate with dredging function |
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| Publication Number | Publication Date |
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| CN111501690A CN111501690A (en) | 2020-08-07 |
| CN111501690B true CN111501690B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010255578.7A Active CN111501690B (en) | 2020-04-02 | 2020-04-02 | Flap gate with dredging function |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152392B (en) * | 2021-04-29 | 2023-02-07 | 力创科技股份有限公司 | Hydraulic engineering construction is with automatic formula gate that opens and shuts |
| CN115679904B (en) * | 2023-01-03 | 2023-03-28 | 石家庄铁道大学 | Hydraulic engineering gate with automatic water conservancy diversion pressure release function |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090079272A (en) * | 2008-01-17 | 2009-07-22 | 한상관 | Method to manufacture water gate puryfing pollouted water |
| CN201915362U (en) * | 2010-11-30 | 2011-08-03 | 李淼 | Rubber filling block gate |
| CN202347502U (en) * | 2011-11-25 | 2012-07-25 | 辽宁省水利水电勘测设计研究院 | Trunnion lodging type gate |
| CN107816018A (en) * | 2017-12-05 | 2018-03-20 | 四川天誉智水科技有限公司 | The integrated gate of desilting |
| CN108301498A (en) * | 2018-01-23 | 2018-07-20 | 武汉圣禹排水系统有限公司 | Dross auto-collection system |
| CN209292981U (en) * | 2018-10-17 | 2019-08-23 | 江门市水电有限公司 | A kind of water conservancy gate convenient for dredging |
| CN209277127U (en) * | 2018-11-09 | 2019-08-20 | 白伟星 | Horizontal flood control lock under a kind of |
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