Water conservancy gate for cleaning deposited silt

Abstract

The invention relates to the field of water conservancy gates, in particular to a water conservancy gate for cleaning deposited silt. An existing water conservancy gate can be eroded and abraded by silt particles, the sealing effect of the water conservancy gate is poor, silt attached to the bottom of a ditch is difficult to clean, and the silt cleaning effect is poor. A water conservancy gate used for cleaning deposited silt comprises a fixed frame provided with a sealing groove, a cover plate fixedly connected to the fixed frame and a water baffle connected into the sealing groove of the fixed frame in a sliding mode. The water baffle and the threaded rod move upwards to drive the sliding frame to move upwards, the water baffle moves by a certain distance so that a flow guide opening of the flow guide ring can be exposed, and when water at the bottom of the ditch flows to the other side of the water baffle, deposited silt can be driven to flow, so that the flowing silt penetrates through the flow guide hole of the flow guide ring; the flow guide ring can protect the sealing groove of the fixing frame and the bottom of the water baffle, and then the sealing effect on the fixing frame and the water baffle is enhanced.

Description

Technical Field

[0001] The invention relates to the field of water conservancy gates, and in particular to a water conservancy gate for cleaning deposited silt. Background Art

[0002] In water conservancy projects, water conservancy gates are widely used as structures for retaining, discharging or taking water. Closing the gates can block floods or raise the upstream water level to meet the needs of irrigation, power generation, industry and domestic water; opening the gates can discharge floods, abandoned water or wastewater, and can also supply water to downstream rivers or channels.

[0003] Sediment will accumulate on the upstream side of the water conservancy gate. In the long-term process of intercepting water flow and controlling water level, sediment will be deposited near the water conservancy gate. Generally, when the water conservancy gate is opened, water will flow out from the bottom of the water conservancy gate at a high speed, and the sediment particles carried by the water will flow away. However, the sediment particles carried by the water will cause continuous scouring and wear on the metal surfaces of the gate bottom plate, threshold and gate groove, resulting in poor sealing effect of the water conservancy gate. In addition, some of the deposited sediment will be tightly attached to the bottom of the ditch, which is difficult to be removed by the impact of the water flow, resulting in poor sediment cleaning effect. Summary of the invention

[0004] In order to overcome the shortcomings of existing hydraulic gates that they may be eroded and worn by silt particles, resulting in poor sealing effect of the hydraulic gates, and it is difficult to clean the silt attached to the bottom of the ditch, resulting in poor silt cleaning effect, the present invention provides a hydraulic gate for cleaning deposited silt that can protect a fixed frame and a water retaining plate, enhance the sealing effect of the hydraulic gate, and clean the silt more thoroughly.

[0005] The technical solution is: a hydraulic gate for cleaning sediment, comprising: A fixed frame with sealing grooves; A cover plate fixedly connected to the fixed frame; A water retaining plate slidably connected in a sealing groove of a fixed frame; A lifting mechanism, arranged on a fixed frame; A limiting mechanism, provided on the fixed frame; The protective mechanism is set up on the restrictive mechanism.

[0006] Furthermore, the lifting mechanism includes: a driving motor fixedly connected to the fixed frame, a threaded sleeve rotatably connected to the fixed frame, a driven gear fixedly connected to the threaded sleeve, a driving gear fixedly connected to the output shaft of the driving motor, the driving gear meshing with the driven gear, a shell fixedly connected to the fixed frame, a threaded rod fixedly connected to the water baffle, and the threaded rod and the threaded sleeve are connected by threads.

[0007] Furthermore, the limiting mechanism includes: four guide blocks fixedly connected to the fixed frame, two guide blocks forming a group, two limiting blocks respectively slidably connected to the two groups of guide blocks and having limiting grooves, four return springs respectively connected between the two limiting blocks and the four guide blocks, two guide plates respectively fixed to the two limiting blocks, a sliding frame slidably connected to the fixed frame, the sliding frame fixedly connected to the water baffle, and the sliding frame in contact with the guide plate.

[0008] Furthermore, each guide plate has two inclined surfaces.

[0009] Furthermore, the protection mechanism includes: a guide ring which is slidably connected in the sealing groove of the fixed frame and has a guide port, the guide ring is slidably connected to the water baffle, two lifting rods are fixed to the guide ring, the two lifting rods are slidably connected to the fixed frame, the two lifting rods are in contact with the limiting grooves of the two limiting blocks, and two contact rods are fixed to the two lifting rods.

[0010] Furthermore, it also includes a stirring mechanism for stirring the deposited silt, which is arranged on a fixed frame, and the stirring mechanism includes: two driven frames slidably connected to the fixed frame, the two driven frames are fixedly connected to the sliding frame, a sliding frame slidably connected in the fixed frame and having two guide grooves, the two driven frames are slidably connected to the two guide grooves of the sliding frame, a rack frame fixedly connected to the sliding frame, a plurality of stirring frames rotatably connected to the cover plate, a plurality of rotating gears fixedly connected to the plurality of stirring frames, and the plurality of rotating gears meshing with the rack frame.

[0011] Furthermore, it also includes a spray mechanism for cleaning the water baffle, which is arranged in a fixed frame, two sealed cylinders fixedly connected to the fixed frame and having two connecting holes, a spray pipe fixedly connected to the cover plate, the spray pipe is fixedly connected and connected to a connecting hole of the two sealed cylinders, two sliding plates respectively connected in a sliding manner in the two sealed cylinders, the two sliding plates are fixedly connected to the two slides, and four one-way valves are respectively fixed in the four connecting holes of the two sealed cylinders.

[0012] Furthermore, it also includes a scraper, which is fixed to the guide ring and contacts the water baffle.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The threaded rod moves upward to drive the water baffle plate to move upward. The upward movement of the water baffle plate and the threaded rod will drive the sliding frame to move upward. The water baffle plate moves a certain distance to expose the guide port of the guide ring. The water at the bottom of the ditch flows from the guide hole of the guide ring to the other side of the water baffle plate. When the water at the bottom of the ditch flows to the other side of the water baffle plate, it will drive the deposited sediment to flow, so that the flowing sediment passes through the guide hole of the guide ring. The guide ring can protect the sealing groove of the fixed frame and the bottom of the water baffle plate, thereby enhancing the sealing effect of the fixed frame and the water baffle plate.

[0014] 2. The upward movement of the sliding frame will drive the driven frame to move upward, and the upward movement of the driven frame will squeeze the guide groove of the sliding frame, so that the sliding frame moves back and forth, and the reciprocating movement of the sliding frame will drive the rack frame to reciprocate, and the reciprocating movement of the rack frame will drive the rotating gear to reciprocate, and the reciprocating rotation of the rotating gear will drive the stirring frame to reciprocate, and the reciprocating rotation of the stirring frame will stir the sediment deposited at the bottom of the ditch to prevent the deposited sediment from being tightly attached to the bottom of the ditch, so that the deposited sediment can be discharged through the diversion port of the diversion ring, which significantly enhances the cleaning effect of the sediment.

[0015] 3. The sliding plate will squeeze the water in the sealing cylinder, so that the water in the sealing cylinder will be discharged into the spray pipe through the one-way valve above, and then the water will be sprayed out from the spray pipe. At the same time, the water baffle moves upward, and the water sprayed from the spray pipe will clean the water baffle. When the gate is opened to release water, the water sprayed from the spray pipe will clean the entire water baffle, and then clean the deposited sediment attached to the side of the water baffle, so that the deposited sediment can be cleaned more cleanly, thereby further enhancing the cleaning effect of the sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the lifting mechanism of the present invention.

[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of the limiting mechanism and the protecting mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the limiting mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the separated three-dimensional structure of the protection mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0022] Figure 7 It is a schematic diagram of a partially cutaway three-dimensional structure of the stirring mechanism of the present invention.

[0023] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the slide and the rack frame of the present invention.

[0025] Fig.10 It is a schematic diagram of the partial three-dimensional structure of the spray mechanism of the present invention.

[0026] Fig.11 It is a partial cross-sectional three-dimensional structural schematic diagram of the spray mechanism of the present invention.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the spray pipe of the present invention.

[0028] The names and serial numbers of the parts in the figure are: 1_fixed frame, 2_cover plate, 3_water baffle, 41_driving motor, 42_threaded sleeve, 43_driven gear, 44_driving gear, 45_housing, 46_threaded rod, 51_guide block, 52_limiting block, 522_reset spring, 53_guide plate, 54_sliding frame, 61_guide ring, 62_lifting rod, 63_contact rod, 71_driven frame, 72_sliding frame, 73_rack frame, 74_stirring frame, 75_rotating gear, 81_sealing cylinder, 82_spray pipe, 83_sliding plate, 84_check valve, 9_scraper. DETAILED DESCRIPTION

[0029] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0030] Embodiment 1: A hydraulic gate for cleaning sediment, such as Figure 1-Figure 5 As shown, including: A fixed frame 1 having a sealing groove; A cover plate 2 connected to the fixed frame 1 by bolts; A water baffle plate 3 is slidably connected to the sealing groove of the fixed frame 1, and a sealing strip is provided on the water baffle plate 3; A lifting mechanism, used for lifting the water retaining plate 3, is arranged on the fixed frame 1; The limiting mechanism is used to limit the movement of the parts and is arranged on the fixed frame 1; The protection mechanism is used to protect the sealing groove of the fixed frame 1 and is arranged on the limiting mechanism.

[0031] The lifting mechanism includes: a driving motor 41 connected to the fixed frame 1 by bolts, a threaded sleeve 42 rotatably connected to the fixed frame 1, a driven gear 43 welded to the threaded sleeve 42, a driving gear 44 fixed to the output shaft of the driving motor 41, the driving gear 44 meshing with the driven gear 43, a housing 45 connected to the fixed frame 1 by bolts, a threaded rod 46 welded to the water baffle 3, and the threaded rod 46 is threadedly connected to the threaded sleeve 42.

[0032] The limiting mechanism includes: four guide blocks 51 welded on the fixed frame 1, two guide blocks 51 form a group, two limiting blocks 52 which are respectively slidably connected to the two groups of guide blocks 51 and have limiting grooves, four return springs 522 are respectively connected between the two limiting blocks 52 and the four guide blocks 51, two guide plates 53 are respectively welded on the two limiting blocks 52, and a sliding frame 54 is slidably connected to the fixed frame 1, the sliding frame 54 is welded to the water baffle 3, and the sliding frame 54 is in contact with the guide plate 53.

[0033] Each guide plate 53 has two inclined surfaces.

[0034] The protection mechanism includes: a guide ring 61 which is slidably connected in the sealing groove of the fixed frame 1 and has a guide port, the guide ring 61 is slidably connected to the water baffle 3, two lifting rods 62 are welded on the guide ring 61, the two lifting rods 62 are slidably connected to the fixed frame 1, the two lifting rods 62 are in contact with the limiting grooves of the two limiting blocks 52, the limiting grooves of the limiting blocks 52 are used to limit the upward movement of the lifting rods 62, and two contact rods 63 are welded on the two lifting rods 62.

[0035] At first, the entire gate is installed in the ditch, and the water retaining plate 3 intercepts the water in the ditch. When too much sediment is deposited on one side of the water retaining plate 3, the staff starts the driving motor 41, and the output shaft of the driving motor 41 drives the driving gear 44 to rotate. The driving gear 44 rotates to drive the driven gear 43 to rotate, and the driven gear 43 rotates to drive the threaded sleeve 42 to rotate. The rotation of the threaded sleeve 42 squeezes the threaded rod 46 so that the threaded rod 46 moves upward. The upward movement of the threaded rod 46 drives the water retaining plate 3 to move upward. The upward movement of the water retaining plate 3 and the threaded rod 46 drives the sliding The movable frame 54 moves upward, and the upward movement of the sliding frame 54 will squeeze the inclined surface of the guide plate 53 to make the guide plate 53 move. The movement of the guide plate 53 will drive the limiting block 52 to move. The movement of the limiting block 52 makes the return spring 522 in a compressed state. Since the limiting grooves of the two limiting blocks 52 will also limit the lifting rod 62, the lifting rod 62, the guide ring 61 and the contact rod 63 will not move. The water baffle 3 moves a distance to expose the guide port of the guide ring 61. Then the staff turns off the driving motor 41, the threaded sleeve 42, the driven gear 43, the main The moving gear 44, the threaded rod 46, the limiting block 52, the return spring 522, the guide plate 53 and the sliding frame 54 stop moving, and the water at the bottom of the ditch flows from the guide hole of the guide ring 61 to the other side of the water baffle 3. When the water at the bottom of the ditch flows to the other side of the water baffle 3, it will drive the deposited silt to flow, so that the flowing silt passes through the guide hole of the guide ring 61. The guide ring 61 can protect the sealing groove of the fixed frame 1 and the bottom of the water baffle 3, thereby enhancing the sealing effect of the fixed frame 1 and the water baffle 3. After a period of time, the water will take away the deposited silt. After that, the staff restarts the driving motor 41, so that the output shaft of the driving motor 41 is reversed, and the driving motor 41 drives the threaded rod 46 to move downward through the driving gear 44, the driven gear 43 and the threaded sleeve 42. The threaded rod 46 moves downward to drive the water baffle plate 3 and the sliding frame 54 to move downward. The water baffle plate 3 moves downward to close with the guide ring 61 again, and the sliding frame 54 moves downward to break away from the guide plate 53. The guide plate 53 and the limiting block 52 are reset under the drive of the reset spring 522. After the reset is completed, the staff turns off the driving motor 41;When drainage is required, the staff starts the driving motor 41, and the driving motor 41 drives the threaded rod 46 to move upward through the driving gear 44, the driven gear 43 and the threaded sleeve 42. The upward movement of the threaded rod 46 drives the water retaining plate 3 and the sliding frame 54 to move upward. The upward movement of the sliding frame 54 squeezes the guide plate 53 to move. The movement of the guide plate 53 drives the limiting block 52 to move. The movement of the limiting block 52 compresses the reset spring 522. The movement of the limiting block 52 continues, and the limiting groove of the limiting block 52 no longer restricts the lifting rod 62. The sliding frame 54 continues to move upward to contact the contact rod 63 and drive the contact rod 63 to move upward. The contact rod 63 The upward movement will drive the guide ring 61 and the lifting rod 62 to move upward, and at the same time, the upward movement of the sliding frame 54 will disengage from the guide plate 53, and the guide plate 53 and the limiting block 52 will be reset under the drive of the reset spring 522, and then the sliding frame 54, the contact rod 63, the water baffle 3, the guide ring 61 and the lifting rod 62 will move upward together, so that the water baffle 3 and the guide ring 61 no longer block the water flow in the ditch, and then the staff will turn off the drive motor 41, and when the water flow in the ditch reaches the specified position, the staff will restart the drive motor 41, so that the output shaft of the drive motor 41 is reversed, and the drive motor 41 is driven by the driving gear 44, the driven gear 43 and the threaded sleeve 42 drives the threaded rod 46 to move downward, and the threaded rod 46 moving downward will drive the water baffle 3 and the sliding frame 54 to move downward, and the sliding frame 54 moving downward will be out of contact with the contact rod 63, and the guide ring 61, the lifting rod 62 and the contact rod 63 move downward under the action of gravity, and the threaded rod 46, the water baffle 3, the sliding frame 54, the guide ring 61, the lifting rod 62 and the contact rod 63 move downward together, and the sliding frame 54 moves downward to contact with the guide plate 53 and push the guide plate 53 to move, and the movement of the guide plate 53 will drive the limiting block 52 to move, and the movement of the limiting block 52 compresses the reset spring 522, and the threaded rod 46, the water baffle 3, the sliding frame 54, the guide ring 61, the lifting rod 62 and the contact rod 63 move downward. The ring 61, the lifting rod 62 and the contact rod 63 continue to move downward, and the lifting rod 62 continues to move downward and contacts the limiting groove of the limiting block 52, and at the same time, the guide ring 61 contacts the bottom of the sealing groove of the fixed frame 1, so that the guide ring 61, the lifting rod 62 and the contact rod 63 stop moving, and the threaded rod 46, the water baffle 3 and the sliding frame 54 continue to move downward, and the sliding frame 54 continues to move downward and disengages from the guide plate 53, and the guide plate 53 and the limiting block 52 are reset under the drive of the reset spring 522, and after the threaded rod 46, the water baffle 3 and the sliding frame 54 move downward into place, the water baffle 3 and the guide ring 61 are closed, and then the staff turns off and starts the drive motor 41. ;

[0036] Embodiment 2: Based on embodiment 1, Figure 6-Figure 9As shown, a stirring mechanism is also included for stirring the deposited silt, which is arranged on the fixed frame 1. The stirring mechanism includes: two driven frames 71 slidably connected to the fixed frame 1, the two driven frames 71 are welded to the sliding frame 54, a sliding frame 54 slidably connected in the fixed frame 1 and having two guide grooves, the two driven frames 71 are slidably connected to the two guide grooves of the sliding frame 54, a rack frame 73 welded to the sliding frame 54, a plurality of stirring frames 74 rotatably connected to the cover plate 2, the stirring frames 74 are used to stir the deposited silt, and a plurality of rotating gears 75 welded to the plurality of stirring frames 74, and the plurality of rotating gears 75 are meshed with the rack frame 73.

[0037] The upward movement of the sliding frame 54 will drive the driven frame 71 to move upward. The upward movement of the driven frame 71 will squeeze the guide groove of the sliding frame 54, so that the sliding frame 54 will reciprocate. The reciprocating movement of the sliding frame 54 will drive the rack frame 73 to reciprocate. The reciprocating movement of the rack frame 73 will drive the rotating gear 75 to reciprocate. The reciprocating rotation of the rotating gear 75 will drive the stirring frame 74 to reciprocate. The reciprocating rotation of the stirring frame 74 will stir the sediment deposited at the bottom of the ditch to prevent the deposited sediment from being tightly attached to the bottom of the ditch, so that the deposited sediment can be discharged through the guide port of the guide ring 61, which significantly enhances the cleaning effect of the sediment. The downward movement of the sliding frame 54 will drive the driven frame 71 to reset downward. The downward resetting of the driven frame 71 will cause the sliding frame 72 to reciprocate. The reciprocating movement of the sliding frame 72 will drive the rack frame 73 to reciprocate. The reciprocating movement of the rack frame 73 causes the stirring frame 74 and the rotating gear 75 to reciprocate.

[0038] Example 3: Based on Example 2, Figure 6-Figure 12 As shown, it also includes a spray mechanism for cleaning the water baffle 3, which is arranged in the fixed frame 1, and is connected to the fixed frame 1 by bolts. Two sealing cylinders 81 with two connecting holes are opened, and a spray pipe 82 is connected to the cover plate 2 by bolts. The spray pipe 82 is fixedly connected and connected with a connecting hole of the two sealing cylinders 81, two sliding plates 83 are respectively slidably connected in the two sealing cylinders 81, and the two sliding plates 83 are welded to the two slides 72, and four one-way valves 84 are respectively fixed in the four connecting holes of the two sealing cylinders 81.

[0039] When the sliding plate 83 moves toward the sealing cylinder 81, the one-way valve 84 below the sealing cylinder 81 will pump water into the sealing cylinder 81, and then the cycle will continue, and the sliding plate 83 will stop moving when the sliding plate 83 moves toward the sealing cylinder 81.

[0040] Embodiment 4: Based on the embodiment 3, Figure 3 As shown, a scraper 9 is also included, which is welded on the guide ring 61 and contacts the water baffle 3 .

[0041] When the water baffle plate 3 moves upward relative to the guide ring 61, since the scraper 9 is fixed on the guide ring 61, the scraper 9 moves relative to the water baffle plate 3, and the scraper 9 will scrape the side of the water baffle plate 3, so that the sediment deposited on the side of the water baffle plate 3 is reduced, thereby making the sediment cleaning cleaner, and the movement of the guide ring 61 will drive the water baffle plate 3 to move.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic gate for clearing sediment, characterized in that: include: A fixed frame (1) having a sealing groove; A cover plate (2) fixedly connected to the fixed frame (1); A water retaining plate (3) slidably connected to a sealing groove of the fixed frame (1); A lifting mechanism is arranged on the fixed frame (1); A limiting mechanism is arranged on the fixed frame (1); The protective mechanism is set up on the restrictive mechanism.

2. A hydraulic gate for clearing sediment according to claim 1, characterized in that: The lifting mechanism comprises: a driving motor (41) fixedly connected to a fixed frame (1), a threaded sleeve (42) rotatably connected to the fixed frame (1), a driven gear (43) fixedly connected to the threaded sleeve (42), a driving gear (44) fixedly connected to an output shaft of the driving motor (41), the driving gear (44) meshing with the driven gear (43), a housing (45) fixedly connected to the fixed frame (1), a threaded rod (46) fixedly connected to the water baffle (3), and the threaded rod (46) being connected to the threaded sleeve (42) by threads.

3. A hydraulic gate for clearing sediment according to claim 2, characterized in that: The limiting mechanism comprises: four guide blocks (51) fixedly connected to a fixed frame (1), two guide blocks (51) forming a group, two limiting blocks (52) respectively connected in a sliding manner to the two groups of guide blocks (51) and having limiting grooves, four return springs (522) respectively connected between the two limiting blocks (52) and the four guide blocks (51), two guide plates (53) respectively fixedly connected to the two limiting blocks (52), and a sliding frame (54) slidably connected to the fixed frame (1), the sliding frame (54) being fixedly connected to the water baffle (3), and the sliding frame (54) being in contact with the guide plate (53).

4. A hydraulic gate for clearing sediment according to claim 3, characterized in that: Each guide plate (53) has two inclined surfaces.

5. A hydraulic gate for clearing sediment according to claim 3, characterized in that: The protection mechanism comprises: a guide ring (61) slidably connected in a sealing groove of a fixed frame (1) and having a guide opening, the guide ring (61) being slidably connected to a water baffle (3), two lifting rods (62) fixedly connected to the guide ring (61), the two lifting rods (62) being slidably connected to the fixed frame (1), the two lifting rods (62) being in contact with the limiting grooves of two limiting blocks (52), and two contact rods (63) fixedly connected to the two lifting rods (62).

6. A hydraulic gate for clearing sediment according to claim 5, characterized in that: The invention also includes a stirring mechanism for stirring the deposited silt, which is arranged on the fixed frame (1), and the stirring mechanism includes: two driven frames (71) slidably connected to the fixed frame (1), the two driven frames (71) being fixedly connected to the sliding frame (54), a sliding frame (54) slidably connected in the fixed frame (1) and having two guide grooves, the two driven frames (71) being slidably connected to the two guide grooves of the sliding frame (54), a rack frame (73) fixedly connected to the sliding frame (54), a plurality of stirring frames (74) rotatably connected to the cover plate (2), a plurality of rotating gears (75) fixedly connected to the plurality of stirring frames (74), and the plurality of rotating gears (75) being meshed with the rack frame (73).

7. A hydraulic gate for clearing sediment according to claim 6, characterized in that: The invention also comprises a spray mechanism for cleaning the water retaining plate (3), which is arranged in the fixed frame (1), two sealing cylinders (81) fixedly connected to the fixed frame (1) and having two communicating holes, a spray pipe (82) fixedly connected to the cover plate (2), the spray pipe (82) being fixedly connected to and communicating with a communicating hole of the two sealing cylinders (81), two sliding plates (83) respectively slidably connected in the two sealing cylinders (81), the two sliding plates (83) being fixedly connected to the two slide frames (72), and four one-way valves (84) respectively fixedly connected in the four communicating holes of the two sealing cylinders (81).

8. A hydraulic gate for clearing sediment according to claim 7, characterized in that: It also includes a scraper (9) which is fixedly connected to the guide ring (61), and the scraper (9) is in contact with the water baffle (3).

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