CN111576353A

CN111576353A - Water sluicegate that can arrange silt automatically

Info

Publication number: CN111576353A
Application number: CN202010501087.6A
Authority: CN
Inventors: 孟奥伟
Original assignee: Dongyang Yunyuan Automation Technology Co ltd
Current assignee: Dongyang Yunyuan Automation Technology Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-08-25

Abstract

The invention relates to the field of water conservancy gates, in particular to a water conservancy gate capable of automatically discharging silt, which comprises a dam bank and a gate opening which is fixedly arranged in the dam bank and is provided with openings at the front end and the rear end, two first support rods extending into the dam bank are fixedly arranged at the top of the gate, two pairs of parallel pulleys are arranged on the two support rods in a rolling manner, a first rotating shaft is arranged between each pair of the pulleys in a rotating manner to connect the pulleys, the water conservancy gate capable of automatically discharging silt can realize the timely treatment of the silt accumulated on the dam bank, and can overhaul the gate in the use, can also be according to the flow size of the height control flood discharge of water level simultaneously, very big reduction the consumption of manpower and materials, also reduced the potential safety hazard of existence simultaneously, increase water conservancy gate's practicality.

Description

Water sluicegate that can arrange silt automatically

Technical Field

The invention relates to the field of water conservancy gates, in particular to a water conservancy gate capable of automatically discharging silt.

Background

After the dam in the past spills through the gate, the bottom of dam embankment often can pile up a large amount of silt that is difficult to handle, if can not be timely handle the silt of accumulation then can cause the damage of dam embankment, cause very serious consequence, can adopt the ship of sending out the pump silt to accomplish the processing of silt usually, however this kind of mode consumptive material consuming time, and in case the water sluicegate in the past is used, hardly overhaul it, thereby cause certain potential safety hazard, so it can arrange the water sluicegate of silt automatically to be necessary to design, solve the above-mentioned problem that exists.

Disclosure of Invention

The invention aims to provide a water conservancy gate capable of automatically discharging silt, which can overcome the defects in the prior art, so that the practicability of equipment is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a water conservancy gate capable of automatically discharging silt, which comprises a dam bank and a gate opening which is fixedly arranged in the dam bank and is provided with openings at the front end and the rear end, wherein the top of the gate opening is fixedly provided with two first supporting rods extending into the dam bank, two pairs of parallel pulleys are arranged on the two supporting rods in a rolling manner, each pair of pulleys are connected by a first rotating shaft in a rotating manner, a second supporting rod is fixedly arranged between the first rotating shafts, the middle part of the second supporting rod is fixedly provided with a first motor, an output shaft in the first motor is provided with a steel wire rope capable of extending up and down, the lower end of the steel wire rope is fixedly provided with a first gate, the first motor controls the first gate to lift, the bottom of the gate opening is rotatably provided with a second rotating shaft fixed at the two ends of the dam bank, and the outer surface at the front side of the second rotating shaft is fixedly provided, a gate slot which is positioned in the dam bank and communicated with the gate opening is arranged below the second gate, a second motor which is positioned in the dam bank is fixedly arranged at the rear side of the second gate, the second motor controls the second gate to rotate in the gate slot and the gate opening, an overhaul device which is positioned below the first gate is arranged in the dam bank, when the overhaul device is pressed by the first gate, the second gate can be overhauled, a position measuring cavity which is opened outwards and positioned between the second gates is arranged on the front side end face of the dam bank, a flood discharge opening which is opened outwards and positioned below the position measuring cavity is arranged on the front side end face of the dam bank, the position measuring cavity and the flood discharge opening are jointly connected with a flood discharge device which is arranged in the dam bank, and the flood discharge device controls the flow of flood discharge through the change of water level so as to ensure the water level, dam bank front end face is provided with the opening outwards and is located the silt suction port of flood discharge mouth below, dam bank front end face is provided with the opening outwards and is located the position finding chamber with first detection mouth between the flood discharge mouth, dam bank front end face is provided with the opening outwards and is located the flood discharge mouth with inhale the second detection mouth between the silt discharge mouth, first detection mouth with the second detect the mouth and inhale the silt mouth jointly with set up in the inside row's silt device of dam bank is connected, dam bank rear side bottom sets up the storage silt chamber by depositing silt, the row's silt device passes through the second detects the detection of mouth and judges whether pile up silt and then pass through inhale the silt mouth and discharge silt into store up the silt chamber, it is provided with ascending opening so that handle silt to store up silt chamber left side.

Further, overhaul the device including setting up the dam dyke internal opening upwards just is located the briquetting chamber of first gate below, dam dyke rear end face is provided with the outlet that the opening faces backwards, briquetting chamber left side is provided with and is located in the dam dyke and together with the gate with the first drain pipe of outlet, briquetting chamber below is provided with and is located in the dam dyke and opening in the first slider chamber of first drain pipe, the activity of briquetting intracavity is provided with the briquetting, the fixed depression bar that extends to in briquetting bottom surface, the depression bar surface is provided with and is located the first spring in briquetting chamber, but first slider intracavity is provided with first slider of horizontal slip, the inside setting of first slider is by the spout, the fixed horizontal pole that sets up in depression bar bottom slide in the spout, push down after first gate puts down thereby the briquetting leads to first slider moves to the right side lets first drain pipe can move The water between the first gate and the second gate can be drained, and the second gate can be overhauled.

Furthermore, the flood discharge device comprises the position measuring cavity and a first hydraulic cavity which is arranged on the top wall of the position measuring cavity and extends into the dam bank, a first piston which moves up and down is arranged in the first hydraulic cavity, a first piston rod is fixedly arranged at the lower end of the first piston, a floating box which is positioned in the position measuring cavity is fixedly arranged at the lower end of the first piston rod, a second drain pipe which is connected with the flood discharge port and the drain port is arranged in the dam bank, a second hydraulic cavity which is positioned in the dam bank is arranged above the second drain pipe, an oil pipe which is communicated with the upper end surface of the first hydraulic cavity is arranged on the front end surface of the second hydraulic cavity, a second piston which can move back and forth is arranged in the second hydraulic cavity, a second piston rod is fixedly arranged on the rear end surface of the second piston, and the rear end surface of the second piston rod is connected with a valve which is movably arranged in the water in the pipe above the second drain pipe and is arranged, the water outlet top is rotatably provided with a water wheel positioned in the second drainage pipe, a first transmission cavity positioned on the right side of the water wheel is arranged in the dam bank, the left end face of the first transmission cavity is rotatably provided with a third rotating shaft extending to the second drainage pipe, the left end of the third rotating shaft is fixed with the water wheel, the right end face of the third rotating shaft is fixedly provided with a first bevel gear, the first bevel gear provides power for the silt discharging device, and the upper position and the lower position of the floating box are changed according to the difference of water levels, so that the opening and closing angle of the valve is changed, water flows through the water outlet and is discharged, and the purpose of maintaining the water level is achieved.

Further, the silt discharging device comprises the first detection port and a detection pipe communicating the first detection port and the second detection port, a second transmission cavity located at the front side of the first transmission cavity is arranged in the dam bank, a fourth rotating shaft extending into the first transmission cavity is rotatably arranged on the rear end face of the second transmission cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the rear end face of the fourth rotating shaft, a third bevel gear is fixedly arranged on the front end face of the fourth rotating shaft, a fifth rotating shaft extending into the detection pipe is rotatably arranged on the upper end face of the second transmission cavity, a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the lower end face of the fifth rotating shaft, a fan wheel located in the detection pipe is fixedly arranged on the upper end face of the fifth rotating shaft, and a second slide block cavity located at the front side of the second transmission cavity and communicated with the detection pipe is arranged in the dam bank, a first silt discharging pipe communicated with the silt suction port and the silt storage cavity is arranged in the dam bank, a third slider cavity extending into the dam bank from top to bottom and located below the second slider cavity is arranged in the middle of the first silt discharging pipe, a second slider is movably arranged in the second slider cavity, a connecting rod extending into the third slider cavity is fixedly arranged at the bottom of the second slider, a second spring is arranged on the bottom surface of the second slider, a third slider is fixedly arranged at the lower end of the connecting rod, a through hole is formed in the middle of the third slider, a third spring is arranged at the bottom of the third slider, a third drain pipe connected with the first silt discharging pipe is arranged on the front end face of the second slider cavity, a second silt discharging pipe extending to the bottom of the silt storage cavity is arranged at the bottom of the first silt discharging pipe above the silt storage cavity, an air cavity extending into the dam bank is arranged above the silt storage cavity, a third piston rod capable of moving up and down is arranged in the air cavity, a floating ball is fixedly arranged at the bottom of the third piston rod, and an air pipe communicated with the bottom of the third sliding block cavity is arranged at the top of the air cavity.

The invention has the beneficial effects that: the water conservancy gate capable of automatically discharging silt provided by the invention can realize timely treatment of silt accumulated on a dam bank, can overhaul the gate in use, and can control the flow of flood discharge according to the water level, thereby greatly reducing the consumption of manpower and material resources, reducing the potential safety hazard and increasing the practicability of the water conservancy gate.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of a water sluicegate capable of automatically discharging silt according to the present invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 1.

Fig. 5 is a schematic diagram of the structure D-D in fig. 3.

Fig. 6 is a partially enlarged schematic view of E in fig. 2.

Fig. 7 is a partially enlarged schematic view of F in fig. 4.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The water conservancy gate capable of automatically discharging silt, which is described in conjunction with the attached drawings 1-7, comprises a dam bank 1 and gate openings 2 fixedly arranged in the dam bank 1 and having openings at the front and rear ends, two first support rods 3 extending into the dam bank 1 are fixedly arranged at the top of the gate openings 2, two pairs of parallel pulleys 5 are arranged on the two support rods 3 in a rolling manner, each pair of pulleys 5 are connected by a first rotating shaft 6 in a rotating manner, a second support rod 7 is fixedly arranged between the first rotating shafts 6, a first motor 101 is fixedly arranged in the middle of the second support rod 7, a steel wire rope 8 capable of extending up and down is arranged on an output shaft in the first motor 101, a first gate 4 is fixedly arranged at the lower end of the steel wire rope 8, the first motor 101 controls the first gate 4 to lift, a second rotating shaft 20 fixed at the two ends of the dam bank 1 is rotatably arranged at the bottom of the gate openings 2, a second gate 9 is fixedly arranged on the outer surface of the front side of the second rotating shaft 20, a gate slot 22 which is positioned in the dam bank 1 and communicated with the gate opening 2 is arranged below the second gate 9, a second motor 102 which is positioned in the dam bank 1 is fixedly arranged on the rear side of the second gate 9, the second motor 102 controls the second gate 9 to rotate in the gate slot 22 and the gate opening 2, an overhaul device 104 which is positioned below the first gate 4 is arranged in the dam bank 1, when the overhaul device 104 is pressed by the first gate 4, the second gate 9 can be overhauled, a position measuring cavity 12 which is opened outwards and positioned between the second gates 9 is arranged on the end surface of the front side of the dam bank 1, a flood discharge opening 14 which is opened outwards and positioned below the position measuring cavity 12 is arranged on the end surface of the front side of the dam bank 1, and the position measuring cavity 12 and the flood discharge opening 14 are jointly connected with the flood discharge device 104 which is arranged in the dam bank 1, the flood discharge device 103 controls the flow of flood discharge through the change of water level to ensure the water level, the front side end face of the dam 1 is provided with a silt suction port 16 with an outward opening and positioned below the flood discharge port 14, the front side end face of the dam 1 is provided with a first detection port 13 with an outward opening and positioned between the position measurement cavity 12 and the flood discharge port 14, the front side end face of the dam 1 is provided with a second detection port 15 with an outward opening and positioned between the flood discharge port 14 and the silt suction port 16, the first detection port 13, the second detection port 15 and the silt suction port 16 are connected with a silt discharging device 105 arranged inside the dam 1, the bottom of the rear side of the dam 1 is provided with a silt storage cavity 17 for storing silt, and the silt discharging device 105 judges whether silt is accumulated through the detection of the second detection port 15 and then discharges the silt into the silt storage cavity 17 through the silt suction port 16, the left side of the sludge storage chamber 17 is provided with an upward opening 18 to facilitate sludge treatment.

Beneficially, the maintenance device 104 includes a pressing block cavity 60 disposed in the dam bank 1 and opened upward and located below the first gate 4, a water outlet 19 opened rearward is disposed on a rear end face of the dam bank 1, a first drain pipe 21 disposed in the dam bank 1 and connected to the gate 2 and the water outlet 19 is disposed on a left side of the pressing block cavity 60, a first slider cavity 64 disposed in the dam bank 1 and opened to the first drain pipe 21 is disposed below the pressing block cavity 60, a pressing block 58 is movably disposed in the pressing block cavity 60, a pressing rod 61 extending to the first slider cavity 64 is fixedly disposed on a bottom surface of the pressing block 58, a first spring 59 disposed in the pressing block cavity 60 is disposed on an outer surface of the pressing rod 61, a first slider 65 capable of sliding left and right is disposed in the first slider cavity 64, a sliding groove 63 is disposed inside the first slider 65, a cross bar 62 fixedly arranged at the bottom of the compression bar 61 slides in the sliding groove 63, and the first gate 4 presses the pressing block 58 after being put down, so that the first sliding block 65 moves rightwards to enable the first drainage pipe 21 to drain water between the first gate 4 and the second gate 9, and the second gate 9 can be overhauled.

Advantageously, the flood discharge device 103 comprises the position measuring cavity 12 and a first hydraulic cavity 29 arranged on the top wall of the position measuring cavity 12 and extending into the dam 1, a first piston 28 moving up and down is arranged inside the first hydraulic cavity 29, a first piston rod 10 is fixedly arranged at the lower end of the first piston 28, a floating box 11 located in the position measuring cavity 12 is fixedly arranged at the lower end of the first piston rod 10, a second drain pipe 23 including the flood discharge port 14 and the drain port 19 is arranged in the dam 1, a second hydraulic cavity 30 located in the dam 1 is arranged above the second drain pipe 23, an oil pipe 26 communicated with the upper end face of the first hydraulic cavity 29 is arranged at the front end face of the second hydraulic cavity 30, a second piston 27 capable of moving forward and backward is arranged inside the second hydraulic cavity 30, a second piston rod 25 is fixedly arranged at the rear end face of the second piston 27, the rear end face of the second piston rod 25 is connected with a valve 24 movably arranged in the dam 1 of the water in the pipe 23 above the second water discharge pipe 23, a water wheel 35 positioned in the second water discharge pipe 23 is rotatably arranged above the water discharge port 19, a first transmission cavity 36 positioned on the right side of the water wheel 35 is arranged in the dam 1, a third rotating shaft 34 extending to the second water discharge pipe 23 is rotatably arranged on the left end face of the first transmission cavity 36, the water wheel 35 is fixed at the left end of the third rotating shaft 34, a first bevel gear 37 is fixedly arranged on the right end face of the third rotating shaft 34, the first bevel gear 37 provides power for the silt discharging device 105, the upper and lower positions of the floating box 11 are changed according to different water levels, and then the opening and closing angle of the valve 24 is changed, so that the water flows through the water discharge port 19 from the flood discharge port 14 and is discharged, thereby achieving the purpose of maintaining the water level.

Beneficially, the silt discharging apparatus 105 includes the first detecting port 13 and a detecting pipe 43 communicating the first detecting port 13 and the second detecting port 15, a second transmission cavity 48 located in front of the first transmission cavity 36 is provided in the dam 1, a fourth rotating shaft 39 extending into the first transmission cavity 36 is provided on a rear end face of the second transmission cavity 48 in a rotating manner, a second bevel gear 38 engaged with the first bevel gear 37 is fixedly provided on a rear end face of the fourth rotating shaft 39, a third bevel gear 47 is fixedly provided on a front end face of the fourth rotating shaft 39, a fifth rotating shaft 45 extending into the detecting pipe 43 is rotatably provided on an upper end face of the second transmission cavity 48, a fourth bevel gear 46 engaged with the third bevel gear 47 is fixedly provided on a lower end face of the fifth rotating shaft 45, a sector wheel 44 located in the detecting pipe 43 is fixedly provided on an upper end face of the fifth rotating shaft 45, a second slider cavity 49 which is positioned at the front side of the second transmission cavity 48 and is communicated with the detection pipe 43 is arranged in the dam bank 1, a first silt discharging pipe 42 which is communicated with the silt suction port 16 and the silt storage cavity 17 is arranged in the dam bank 1, a third slider cavity 54 which extends into the dam bank 1 and is positioned below the second slider cavity 49 is arranged in the middle of the first silt discharging pipe 42, a second slider 50 is movably arranged in the second slider cavity 49, a connecting rod 52 which extends into the third slider cavity 54 is fixedly arranged at the bottom of the second slider 50, a second spring 51 is arranged at the bottom of the second slider 50, a third slider 56 is fixedly arranged at the lower end of the connecting rod 52, a through hole 57 is arranged in the middle of the third slider 56, a third spring 55 is arranged at the bottom of the third slider 56, a third drain pipe 53 which is connected with the first silt discharging pipe 42 is arranged on the front end face of the second slider cavity 49, the bottom of the first silt discharging pipe 42 above the silt storage cavity 17 is provided with a second silt discharging pipe 31 extending to the bottom of the silt storage cavity 17, an air cavity 32 extending into the dam 1 is arranged above the silt storage cavity 17, a third piston rod 32 capable of moving up and down is arranged inside the air cavity 32, a floating ball 33 is fixedly arranged at the bottom of the third piston rod 32, and an air pipe 41 communicated with the bottom of the third sliding block cavity 54 is arranged at the top of the air cavity 32.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

Sequence of mechanical actions of the whole device: in an initial state, the first gate 4 is in a lifted state, the first spring 59 is in an extended state, the first drain pipe 21 is in a blocked state, the valve 24 is in a closed state, the second spring 51 and the third spring 55 are both in an extended state, the second slider 50 is in a blocked state of the third drain pipe 53, and the through hole 57 is in a state of being staggered from the first dredging pipe 42.

When the water sluicegate of the invention works, the second gate 9 works normally, and when the second gate 9 needs to be overhauled, the first motor 101 is started, so that the first gate 4 descends to the bottom of the gate opening 2 to press the pressing block 58, so that the first sliding block 65 slides forwards in the first sliding block cavity 64, so that water between the first gate 4 and the second gate 9 flows into the first drainage pipe 21 and is discharged from the drainage port 19, so that the second gate 9 can be overhauled, after the overhaul is finished, the first gate 4 is lifted, the first drainage pipe 21 is in a blocking state, and the second gate 9 returns to work normally; meanwhile, during the normal operation of the water sluicegate, the buoyancy of the floating box 11 receiving water rises or falls with the water level all the time, so as to drive the first piston 28 to rise or fall, thereby causing the second piston 27 to move back and forth, thereby causing the valve 24 to open or close, and the opening angle of the valve 24 to change, thereby causing water to enter from the flood discharge opening 14, flow through the second water discharge pipe 23, and be discharged from the water discharge opening 19, thereby maintaining the water level in the dam 1 stable, and at the same time, when water flows through the second water discharge pipe 23, the water wheel 35 is driven to rotate, thereby driving the first bevel gear 37 to rotate, thereby driving the second bevel gear 38 to rotate, thereby driving the third bevel gear 47 to rotate, thereby driving the fourth bevel gear 46 to rotate, thereby driving the fan wheel 44 to rotate, so as to suck water in from the first detection port 13 and discharge the water from the second detection port 15, when a large amount of sludge is accumulated at the bottom of the dam 1 and the second detection port 15 is blocked, the water sucked in from the first detection port 13 will press the second slider 50 to move downwards, so as to drive the third slider 56 to move downwards, so as to cause the through hole 57 to be aligned with the first sludge discharge pipe 42, so as to suck water into the sludge storage chamber 17, when the water level in the sludge storage chamber 17 is over the bottom of the second sludge discharge pipe 31, a siphon effect is generated, so as to suck sludge from the sludge suction port 16 into the sludge storage chamber 17 through the first sludge discharge pipe 42, when the sludge in the sludge storage chamber 17 is stored to a certain depth, the float ball 33 is lifted, so as to cause the air in the air chamber 32 to be pressed into the third slider 54 through the air pipe 41, so as to cause the third slider 56 and the second slider 50 to move upwards, so as to block the first sludge discharge pipe 42, and the sludge discharge link is finished, and after the sludge is air-dried in the sludge storage cavity 17, the sludge is taken out from the opening 18 to be incinerated or filled for disposal.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a water sluicegate that can arrange silt automatically, include the dam bank and fixed set up in both ends open-ended sluice gates around the inside and of dam bank, its characterized in that: the top of the gate opening is fixedly provided with two first supporting rods extending into the dam bank, the two supporting rods are provided with two pairs of side-by-side pulleys in a rolling manner, each pair of pulleys are rotatably connected through a first rotating shaft, a second supporting rod is fixedly arranged between the first rotating shafts, the middle part of the second supporting rod is fixedly provided with a first motor, an output shaft in the first motor is provided with a steel wire rope capable of extending up and down, the lower end of the steel wire rope is fixedly provided with a first gate, the first motor controls the lifting of the first gate, the bottom of the gate opening is rotatably provided with second rotating shafts fixed at two ends of the dam bank, the outer surface of the front side of the second rotating shaft is fixedly provided with a second gate, a gate groove which is positioned in the dam bank and communicated with the gate opening is arranged below the second gate, and the rear side of the second gate is fixedly provided with a second motor positioned in the dam bank, the second motor controls the second gate to rotate in the gate slot and the gate opening, an overhaul device located below the first gate is arranged in the dam bank, when the overhaul device is pressed by the first gate, the second gate can be overhauled, a position measuring cavity with an outward opening and located between the second gates is arranged on the front side end face of the dam bank, a flood discharge opening with an outward opening and located below the position measuring cavity is arranged on the front side end face of the dam bank, the position measuring cavity and the flood discharge opening are jointly connected with a flood discharge device arranged inside the dam bank, the flood discharge device controls the flow of flood discharge through the change of water level to ensure the water level, a silt suction port with an outward opening and located below the flood discharge opening is arranged on the front side end face of the dam bank, a first detection port with an outward opening and located between the position measuring cavity and the flood discharge opening is arranged on the front side end face of the dam bank, dam dyke front side end face is provided with the opening outwards and is located flood discharge mouth with inhale the second between the silt mouth and detect the mouth, first detect the mouth with the second detect the mouth and inhale the silt mouth jointly with set up in the inside row's silt device of dam dyke is connected, dam dyke rear side bottom sets up the storage silt chamber by depositing silt, it passes through to arrange the silt device the second detects the detection of mouth and judges whether pile up silt and then pass through inhale the silt mouth and arrange silt into store up the silt chamber, it is provided with ascending opening so that handle silt to store up silt chamber left side.

2. A water sluicegate capable of automatically discharging silt as claimed in claim 1, wherein: the maintenance device comprises a pressing block cavity which is arranged in a dam bank, wherein an opening of the pressing block cavity is upward and is located below a first gate, a water outlet with an opening facing backwards is formed in the rear end face of the dam bank, a pressing block is arranged on the left side of the pressing block cavity and is located in the dam bank and is connected with a first water discharge pipe of the water outlet, a pressing block is arranged below the pressing block cavity and is located in the dam bank and is provided with an opening of the first water discharge pipe, a pressing block is movably arranged in the pressing block cavity, a pressing rod extending to the first sliding block cavity is fixedly arranged on the bottom face of the pressing block, a first spring located in the pressing block cavity is arranged on the outer surface of the pressing rod, a first sliding block capable of sliding left and right is arranged in the first sliding block cavity, a sliding groove is formed in the first sliding block, a cross rod fixedly arranged at the bottom of the pressing rod slides in the sliding groove, the first gate is pressed after being put down And water between the first gate and the second gate is discharged, so that the second gate can be overhauled.

3. A water sluicegate capable of automatically discharging silt as claimed in claim 1, wherein: the flood discharge device comprises a position measuring cavity and a first hydraulic cavity arranged on the top wall of the position measuring cavity and extending into the dam bank, a first piston moving up and down is arranged in the first hydraulic cavity, a first piston rod is fixedly arranged at the lower end of the first piston, a floating box positioned in the position measuring cavity is fixedly arranged at the lower end of the first piston rod, a second drain pipe connected with the flood discharge port and the water discharge port is arranged in the dam bank, a second hydraulic cavity positioned in the dam bank is arranged above the second drain pipe, an oil pipe communicated with the upper end surface of the first hydraulic cavity is arranged on the front end surface of the second hydraulic cavity, a second piston capable of moving back and forth is arranged in the second hydraulic cavity, a second piston rod is fixedly arranged on the rear end surface of the second piston, and the rear end surface of the second piston rod is connected with a valve movably arranged in the dam bank and above the second drain pipe, the water outlet top is rotatably provided with a water wheel positioned in the second drainage pipe, a first transmission cavity positioned on the right side of the water wheel is arranged in the dam bank, the left end face of the first transmission cavity is rotatably provided with a third rotating shaft extending to the second drainage pipe, the left end of the third rotating shaft is fixed with the water wheel, the right end face of the third rotating shaft is fixedly provided with a first bevel gear, the first bevel gear provides power for the silt discharging device, and the upper position and the lower position of the floating box are changed according to the difference of water levels, so that the opening and closing angle of the valve is changed, water flows through the water outlet and is discharged, and the purpose of maintaining the water level is achieved.

4. A water sluicegate capable of automatically discharging silt as claimed in claim 1, wherein: the silt discharging device comprises the first detection port and a detection pipe communicated with the first detection port and the second detection port, a second transmission cavity positioned at the front side of the first transmission cavity is arranged in the dam bank, a fourth rotating shaft extending into the first transmission cavity is rotatably arranged on the rear end face of the second transmission cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the rear end face of the fourth rotating shaft, a third bevel gear is fixedly arranged on the front end face of the fourth rotating shaft, a fifth rotating shaft extending into the detection pipe is rotatably arranged on the upper end face of the second transmission cavity, a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the lower end face of the fifth rotating shaft, a sector wheel positioned in the detection pipe is fixedly arranged on the upper end face of the fifth rotating shaft, and a second slide block cavity positioned at the front side of the second transmission cavity and communicated with the detection pipe is arranged in the dam bank, a first silt discharging pipe communicated with the silt suction port and the silt storage cavity is arranged in the dam bank, a third slider cavity extending into the dam bank from top to bottom and located below the second slider cavity is arranged in the middle of the first silt discharging pipe, a second slider is movably arranged in the second slider cavity, a connecting rod extending into the third slider cavity is fixedly arranged at the bottom of the second slider, a second spring is arranged on the bottom surface of the second slider, a third slider is fixedly arranged at the lower end of the connecting rod, a through hole is formed in the middle of the third slider, a third spring is arranged at the bottom of the third slider, a third drain pipe connected with the first silt discharging pipe is arranged on the front end face of the second slider cavity, a second silt discharging pipe extending to the bottom of the silt storage cavity is arranged at the bottom of the first silt discharging pipe above the silt storage cavity, an air cavity extending into the dam bank is arranged above the silt storage cavity, a third piston rod capable of moving up and down is arranged in the air cavity, a floating ball is fixedly arranged at the bottom of the third piston rod, and an air pipe communicated with the bottom of the third sliding block cavity is arranged at the top of the air cavity.