A dam gate system with automatic obstacle clearance

Abstract

The present invention relates to the technical field of flash flood disaster early warning and protection, and specifically discloses an automatic obstacle-clearing dam gate system, including a dam body, wherein a plurality of groups of sand discharge holes and a plurality of guide holes are provided in the dam body, wherein the sand discharge holes penetrate the dam body, and the plurality of guide holes are respectively connected with the plurality of groups of sand discharge holes; a movable movable platform is provided on the dam body, wherein a floating wood cleaning mechanism for cleaning floating wood is provided in the movable platform; and a valve mechanism for blocking the sand discharge hole is provided in the sand discharge hole. The system solves the technical problems that after a flash flood occurs, floating wood and other floating objects block the flood discharge holes, causing flood risks, and that when workers move engineering machinery to the river channel to salvage floating wood, the engineering machinery is prone to fall into the water, causing secondary damage to people's lives and property safety.

Description

Technical Field

[0001] The invention relates to the technical field of early warning and protection of mountain torrent disasters, and in particular discloses a dam gate system with automatic obstacle clearing. Background Art

[0002] As an important water conservancy project, the safety and stability of the dam are directly related to the safety of life and property of people downstream. Under extreme weather conditions such as flash floods, trees and large-size bedload may enter the reservoir due to earthquakes, landslides, flood scouring, excessive winds, etc., thus threatening the safety of the dam.

[0003] For example, the invention patent with patent number 2022104183449 discloses an emergency warning and protection device for flash floods, including: a dam, a warning detection part and a protection part; the dam is built in a high-incidence area of ​​flash floods, and a small hydroelectric generator is installed on the side of the dam, which can provide power guarantee for the activation of the entire equipment; the warning detection part is installed on the dam, and the warning detection part is responsible for effective warning of flash floods to reduce the loss of life and property caused by flash floods; the protection part is installed on both sides of the dam, and the protection part cleans the river in time to prevent congestion in the river and cause disasters. When encountering flash floods, the existing dam can only drive large floating wood and other impurities floating on the water to both sides of the river, and cannot rely on general cleaning machines to automatically remove them. Workers still need to move engineering machinery to the river to salvage the floating wood. However, since a flash flood has just occurred, the roads on both sides of the river are not stable, and engineering machinery is prone to fall into the water due to unstable roads, causing secondary damage to people's lives and property safety. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a dam gate system with automatic obstacle clearance to solve the problem of flood risk caused by floating objects such as driftwood blocking the flood discharge holes after a mountain torrent occurs, and the technical problem that when workers move engineering machinery to the river channel to salvage the driftwood, the engineering machinery is prone to fall into the water, causing secondary damage to people's lives and property safety.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic obstacle-clearing dam gate system, comprising a dam body, wherein a plurality of sand discharge holes and a plurality of guide holes are provided in the dam body, wherein the sand discharge holes penetrate the dam body, and the plurality of guide holes are respectively connected with the plurality of sand discharge holes; a movable movable platform is provided on the dam body, wherein a floating wood cleaning mechanism for cleaning floating wood is provided in the movable platform; and a valve mechanism for blocking the sand discharge hole is provided in the sand discharge hole. When a mountain torrent breaks out, the staff uses the floating wood cleaning mechanism to clean the floating wood on the water surface to prevent the flood discharge outlet from being blocked, thereby ensuring that the dam can discharge flood water smoothly. At the same time, the valve mechanism is opened to discharge the sand to prevent the accumulation of silt at the bottom of the river.

[0006] Furthermore, the valve mechanism includes a first valve, a sliding groove is provided in the sand discharge hole, the first valve is slidably mounted in the sliding groove, first rotating shafts are provided on both sides of the first valve, and the first rotating shafts are installed on the inner wall of the sand discharge hole; a worm wheel is provided on one group of the first rotating shafts, a worm is meshed on the worm wheel, and a driving motor is provided at one end of the worm; an emergency valve assembly is provided in the first valve. The staff controls the first valve to drain the riverbed normally, and the first valve moves along the direction of the water flow when it is opened or closed, which can reduce the resistance of the silt or water flow to the first valve, thereby avoiding high-load operation of the driving motor and improving the service life of the driving motor.

[0007] Furthermore, the emergency valve assembly includes a second valve, the second valve is mounted on the first valve, the second valve is provided with a plurality of first limit blocks, the plurality of first limit blocks are all mounted on the first valve, the second valve is fixedly connected with a connecting rod and a first hinge seat, the first valve is fixedly connected with a second hinge seat, the first hinge seat is hinged on the second hinge seat; the connecting rod is provided with a second slot, and a block is mounted in the second slot. When the first valve cannot be opened normally, the second valve will be opened, which can prevent excessive silt from causing damage to the dam and increase the service life of the dam.

[0008] Furthermore, the second hinge seat is provided with two groups of first connecting columns, one end of the two groups of first connecting columns is provided with a detachable movable block, the two groups of first connecting columns are provided with springs, the springs are in a compressed state, and the two ends of the two groups of springs are respectively in contact with the second hinge seat and the corresponding movable block; the movable block is provided with a second limiting block, the first connecting column is provided with a second limiting groove, the second limiting groove is provided with a first fixed block, the second limiting block is slidably clamped in the second limiting groove, and the second limiting block is in contact with the first fixed block; the first valve is provided with a trigger element for moving the movable block. The spring is in a compressed state, and when the spring is released, it can drive the clamping block to move, thereby releasing the fixation of the second valve, so that the second valve can be opened.

[0009] Furthermore, the trigger element includes a second hydraulic cylinder, a conical block is provided on the telescopic end of the second hydraulic cylinder, and a base is provided on the fixed end of the second hydraulic cylinder; a second fixed groove and two groups of first fixed grooves are provided in the first valve, the two groups of the first fixed grooves are connected with the second fixed grooves, the conical block is clamped at one end of the second fixed groove, and the base is located at the other end of the second fixed groove; the diameter of the middle section of the second fixed groove is larger than the diameter of the two ends, and the second fixed groove and the two groups of the first fixed grooves are filled with water; the two groups of the first fixed grooves are slidably clamped with movable columns, and the two groups of the movable columns are in contact with the two groups of the movable blocks respectively. When the pressure exerted by the sludge on the conical block reaches the threshold, the trigger element unlocks the spring, allowing the spring to release its elastic potential energy, thereby achieving the purpose of opening the second valve.

[0010] Furthermore, a plurality of first hydraulic cylinders are arranged at the bottom end of the movable platform, and the fixed ends of the first hydraulic cylinders are fixedly connected to the dam body. The first hydraulic cylinders are used to control the lifting and lowering of the movable platform.

[0011] Furthermore, the floating wood cleaning mechanism includes a groove, the groove is provided at the center of the movable platform, and a plurality of groups of second connecting columns are provided on both sides of the groove; a plurality of groups of second fixing blocks are fixedly connected to the second connecting column, a plurality of groups of third fixing grooves are provided on the movable platform, a plurality of groups of the second connecting columns are respectively located in a plurality of groups of the third fixing grooves, the second connecting column is rotatably connected to the dam body, and a plurality of groups of the second fixing blocks are located outside the third fixing grooves. By cooperating with a plurality of groups of second connecting columns and a plurality of groups of second fixing blocks, the floating wood on the water surface can be concentrated, thereby facilitating the salvaging element to salvage the floating wood.

[0012] Furthermore, a cleaning component is provided in the groove, and the cleaning component includes a rotating drive device, the fixed end of the rotating drive device is fixedly connected to the top of the inner wall of the groove, and the output end of the rotating drive device is provided with a first connecting block, and first collecting grooves are provided on both sides of the first connecting block, and a plurality of through holes are provided at the bottom of the first collecting groove, one group of which is located in the groove; and a salvaging element is provided below one group of which. The cleaning component collects the floating wood salvaged by the salvaging element, and at the same time facilitates the staff to move it to the designated location for stacking, thereby ensuring the safety of the staff's work place and preventing mountain torrents from causing secondary damage to people's lives and property safety.

[0013] Furthermore, the salvage element includes a second connection block, a second rotating shaft is provided on both sides of the second connection block, a fixing frame is provided in the groove, and two groups of the second rotating shafts are rotatably connected to the fixing frame and the movable platform respectively; a third connection block is provided on both sides of the second connection block, and the two groups of the third connection blocks are fixedly connected to a second collecting trough, and the bottom surface of the second collecting trough is arc-shaped. The salvage element salvages the floating wood on the water surface through a moving track similar to a seesaw, and moves the salvaged floating wood to a designated position, thereby improving the salvage efficiency of the floating wood.

[0014] The working principle and beneficial effects of this solution are:

[0015] When a flash flood arrives, large floating objects such as driftwood will flow into the reservoir area and eventually move to the dam. When the dam staff discovers the arrival of a flash flood, they start the first hydraulic cylinder to drive the movable platform upward, move the driftwood cleaning mechanism to the designated position, and then start the driftwood cleaning mechanism to salvage the driftwood around the dam and stack it in the designated position. The staff can salvage the driftwood safely and efficiently, which improves the efficiency of salvaging driftwood and ensures that the flash flood will not cause secondary damage to water conservancy facilities such as dams and people's lives and property.

[0016] When the amount of water in the upstream reaches a certain level, it is necessary to discharge the flood and at the same time, the riverbed needs to be dredged to flush out the mud washed down by the mountain torrents to prevent subsequent safety hazards. When dredging, the staff will open the first valve through the driving motor to discharge the silt on the riverbed. At the same time, the upper water will flow from the guide hole into the sand discharge hole to assist in flushing out the silt, ensuring that the silt can be discharged smoothly and improving the efficiency of silt discharge; when the first valve cannot be opened normally, the silt will accumulate over time, and the pressure of the silt on the second valve and the conical block will increase. When the pressure reaches the threshold, the emergency valve assembly is opened by the trigger element, and the second valve is opened at this time to ensure that the silt can be discharged smoothly and prevent damage to the dam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment;

[0018] Figure 2 It is a partial exploded view of an embodiment;

[0019] Figure 3 is a cross-sectional view of an embodiment;

[0020] Figure 4 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0021] Figure 5 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0022] Figure 6 It is a structural schematic diagram of the valve mechanism in the embodiment;

[0023] Figure 7 for Figure 6 The enlarged schematic diagram of the center C;

[0024] Figure 8 is a cross-sectional view of a valve mechanism in an embodiment;

[0025] Fig. 9 for Figure 8 The enlarged schematic diagram of point D in the middle;

[0026] Fig.10 Schematic diagram of the structure of the cleaning component in the embodiment.

[0027] The following are marked in the accompanying drawings: riverbed 1;

[0028] The dam body 201, the first guide groove 202, the sand discharge hole 203, the guide hole 204, the movable platform 205, the movable groove 206, and the first hydraulic cylinder 207;

[0029] A first valve 301, a first rotating shaft 302, a sliding groove 303, a worm wheel 304, a worm 305, and a driving motor 306;

[0030] The second valve 401, the first clamping slot 402, the first limiting block 403, the first limiting slot 404, the connecting rod 405, the first hinge seat 406, the clamping block 407, the baffle 408, the second clamping slot 409, and the second hinge seat 410;

[0031] The movable block 501, the first connecting column 502, the second limiting block 503, the second limiting groove 504, the first fixed block 505, the spring 506, the first fixed groove 507, the movable column 508, the second fixed groove 509, the second hydraulic cylinder 510, the base 511, and the tapered block 512;

[0032] The second connecting column 601, the third fixing groove 602, the second fixing block 603, the groove 604, the first connecting block 605, the rotation drive device 606, the first collecting groove 607, the through hole 608, the second connecting block 609, the second rotating shaft 610, the fixing frame 611, the third connecting block 612, the second collecting groove 613, the through groove 614, the first rectangular groove 615, and the second rectangular groove 616. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] Example

[0035] like Figures 1 to 10As shown, an automatic obstacle-clearing dam gate system is disclosed, including a riverbed 1, a dam body 201 is arranged above the riverbed 1, a movable groove 206 is opened on the dam body 201, a plurality of first hydraulic cylinders 207 are arranged in the movable groove 206, a fixed end of the first hydraulic cylinder 207 is fixedly connected to the bottom of the movable groove 206 by bolts, a movable platform 205 is slidably mounted in the movable groove 206, the bottom of the movable platform 205 is fixedly connected to the telescopic ends of the plurality of first hydraulic cylinders 207, a floating wood cleaning mechanism is arranged on one side of the dam body 201, and the floating wood cleaning mechanism is located on the upstream side, as shown in FIG. Figure 2 shown.

[0036] The floating wood cleaning mechanism includes a plurality of groups of second connecting columns 601, each of which is fixedly connected to a plurality of groups of second fixing blocks 603, and the plurality of groups of second fixing blocks 603 are distributed in a circular array on the second connecting columns 601, a plurality of groups of third fixing grooves 602 are provided on the movable platform 205, and the plurality of groups of second connecting columns 601 are respectively located in the plurality of groups of third fixing grooves 602, the second connecting columns 601 are rotatably connected to the movable platform 205, one end of the second connecting column 601 is connected to a driving device, and the driving device is located in the movable platform 205, wherein the plurality of groups of second fixing blocks 603 are located outside the third fixing grooves 602, the plurality of groups of second connecting columns 601 are evenly distributed horizontally on the movable platform 205, a groove 604 is provided at the center of the movable platform 205, and a cleaning component is arranged in the groove 604, such as Figure 2 and Figure 4 shown.

[0037] The cleaning component includes a rotating drive device 606, the fixed end of the rotating drive device 606 is fixedly connected to the top of the groove 604 by bolts, the output end of the rotating drive device 606 is fixedly connected to the first connecting block 605, both sides of the first connecting block 605 are fixedly connected to the first collecting groove 607, the bottom of the first collecting groove 607 is provided with a plurality of groups of through holes 608, the side wall of the first collecting groove 607 is provided with a plurality of groups of second rectangular grooves 616, one group of the first collecting grooves 607 is located in the groove 604, and the other group of the first collecting grooves 607 is located outside the groove 604, wherein a salvaging element is arranged below the first collecting groove 607 located in the groove 604, and the salvaging element includes a second connecting block 609, the second connecting block 609, and the second connecting block 609. A second rotating shaft 610 is provided on both sides of the connecting block 609, and a fixing frame 611 is fixedly connected in the groove 604. One group of second connecting blocks 609 is installed in the fixing frame 611 and is rotatably connected to the fixing frame 611. A driving device is provided on the other group of second connecting blocks 609, and the driving device is located in the movable table 205. Third connecting blocks 612 are fixedly connected on both sides of the second connecting blocks 609. The third connecting blocks 612 are U-shaped. Second collecting grooves 613 are fixedly connected to the two groups of third connecting blocks 612. The bottom surface of the second collecting groove 613 is arc-shaped. A plurality of groups of through grooves 614 are opened on the second collecting groove 613, and a plurality of groups of first rectangular grooves 615 are opened on the side wall of the second collecting groove 613. Fig.10 shown.

[0038] The driving device and the rotation driving device 606 are both commonly used technical means by those skilled in the art, and their structures, connection methods and usage methods are all well known to those skilled in the art.

[0039] A plurality of sand discharge holes 203 are provided in the dam body 201. The sand discharge holes 203 penetrate the dam body 201. Two groups of first guide grooves 202 are provided at one end of the sand discharge holes 203. The first guide grooves 202 are located on the upstream side. A plurality of guide holes 204 are provided in the dam body 201. The plurality of guide holes 204 are connected to the plurality of sand discharge holes 203 respectively. The guide holes 204 are in an arc shape. Figure 3 shown.

[0040] A valve mechanism is provided in the sand discharge hole 203, and the valve mechanism includes a first valve 301. A sliding groove 303 is provided in the sand discharge hole 203. The first valve 301 is slidably mounted in the sliding groove 303. First rotating shafts 302 are provided on both sides of the first valve 301. Both ends of the first rotating shaft 302 are respectively installed on both sides of the sand discharge hole 203. The first rotating shaft 302 is rotatably connected to the sand discharge hole 203. A worm gear 304 is provided on one side of the first rotating shaft 302. A worm 305 is meshed on the worm gear 304. A driving motor 306 is provided at one end of the worm 305. The output end of the driving motor 306 is fixedly connected to the worm 305 through a coupling. The fixed end of the driving motor 306 is fixedly connected to the riverbed 1 through bolts. Figure 5 shown.

[0041] The first valve 301 is provided with an emergency valve assembly, which includes a second valve 401. The first valve 301 is provided with a first slot 402, and the second valve 401 is clamped in the first slot 402. The second valve 401 is provided with a plurality of first limit blocks 403. The first valve 301 is provided with a plurality of first limit slots 404, and the plurality of first limit blocks 403 are clamped on the plurality of first limit slots 404. The second valve 401 is fixedly connected with a connecting rod 405, and a first hinge seat 406 is provided on the connecting rod 405. The first valve 301 is fixedly connected with an hinge seat, and the first hinge seat 406 is hinged in the hinge seat. The connecting rod 405 is provided with a second slot 409, and a clamping block 407 is clamped in the second slot 409. The clamping block 407 has two The first connecting column 502 is fixedly connected with a baffle 408 on both sides, and a first connecting column 502 is arranged between the baffle 408 and the second hinge seat 410. One end of the first connecting column 502 contacts the second hinge seat 410, and the other end of the first connecting column 502 is provided with a movable movable block 501. The movable block 501 is fixedly connected with a second limiting block 503. A second limiting groove 504 is provided in the first connecting column 502. The second limiting block 503 is slidably mounted in the second limiting groove 504. The inner wall of the second limiting groove 504 is fixedly connected with a first fixed block 505. The second limiting block 503 contacts the first fixed block 505. A spring 506 is sleeved on the first connecting column 502. At this time, the spring 506 is in a compressed state, and both ends of the spring 506 are respectively in contact with the movable block 501 and the second hinge seat 410. Figure 6 and Figure 7 shown.

[0042] A trigger element is arranged in the first valve 301, and the trigger element includes a conical block 512, on which a second hydraulic cylinder 510 is arranged, and the telescopic end of the second hydraulic cylinder 510 is fixedly connected to the conical block 512, and a base 511 is arranged at the fixed end of the conical block 512, and a cross groove is arranged at the center of the base 511, and a second fixed groove 509 and two groups of first fixed grooves 507 are arranged in the first valve 301, and the second fixed groove 509 is composed of two truncated cone-shaped spaces, and the two truncated cones are arranged at the fixed end of the conical block 512. The bottom surfaces of the platforms are connected, the diameter at the center of the second fixed groove 509 is larger than the diameters at both ends, one end of the second fixed groove 509 is connected to the outside, a conical block 512 is clamped at one end of the second fixed groove 509, and the conical block 512 separates the second fixed groove 509 from the outside world, and movable columns 508 are slidably clamped in the first fixed grooves 507. The two groups of movable columns 508 are respectively in contact with the corresponding movable blocks 501, and the second fixed groove 509 and the two groups of first fixed grooves 507 are filled with water.

[0043] When implementing:

[0044] When a flash flood arrives, the trees on both sides of the river channel will be pulled out of the soil, and the trees will move with the water flow and eventually move to the dam. When the dam staff finds that a flash flood is coming, they start the first hydraulic cylinder 207, and the telescopic end of the first hydraulic cylinder 207 extends to drive the movable platform 205 to move upward in the movable groove 206. The movable platform 205 drives the floating wood cleaning mechanism to move upward until several groups of second fixed blocks 603 are partially exposed to the water surface. At this time, the first hydraulic cylinder 207 is stopped, and the floating wood cleaning mechanism moves to the specified position, and then the corresponding driving device is started. The driving device drives the second connecting column 601 to rotate, and the second connecting column 601 drives several groups of second fixed blocks 603 to rotate around the second connecting column 601. When the second fixed block 603 rotates, it will drive the floating wood near the dam body 201 to move to the groove 604, and eventually flow into the groove 604 with the water flow. The staff salvages the floating wood through the floating wood cleaning mechanism.

[0045] When the floating wood cleaning mechanism salvages the floating wood, the staff first starts the corresponding driving device, which drives the second rotating shaft 610 and the second connecting block 609 to rotate, and the second connecting block 609 drives the two groups of third connecting blocks 612 and the two groups of second collecting grooves 613 to rotate, one group of the second collecting grooves 613 rotates and moves upward, and the other group of the second collecting grooves 613 rotates and moves downward. The second collecting grooves 613 moving upward will salvage the floating wood and drive it to move upward until the salvaging element is in a vertical state. At this time, the floating wood rolls downward along the arc of the bottom surface of the through groove 614 until it rolls down on the first collecting groove. When the floating wood is salvaged in the groove 607, water will flow out from the through groove 614, reducing the pressure of the driving device to drive the salvage element to move. When the floating wood falls on the first collecting groove 607, the water flowing down from the floating wood will also flow out from the through hole 608. After the salvage element is in a vertical state for a period of time, the driving device is started again, driving the second connecting block 609, the two groups of third connecting blocks 612 and the two groups of second collecting grooves 613 to rotate in the opposite direction, and the floating wood is salvaged into the first collecting groove 607 through another group of second collecting grooves 613, and the movement trajectory of the salvage element is similar to the movement trajectory of the seesaw.

[0046] When the driftwood in the first collecting trough 607 located in the groove 604 reaches a certain weight, the rotating drive device 606 is started, and the rotating drive device 606 drives the first connecting block 605 to rotate, and the first connecting block 605 drives the two groups of first collecting troughs 607 to rotate until the first connecting block 605 rotates 180 degrees on the riverbed. At this time, the two groups of first collecting troughs 607 exchange positions. At this time, the first collecting trough 607 loaded with driftwood is located outside the groove 604. The staff can move the driftwood out of the first collecting trough 607 and move it to the designated position for stacking. At the same time, the salvaging element can continue to salvage the driftwood in the upstream into the first collecting trough 607 to prevent too much driftwood in the river channel from clogging the drain outlet.

[0047] When the water volume in the upstream reaches a certain level, it is necessary to discharge the flood to prevent the dam from being damaged due to excessive pressure. At the same time, it is necessary to dredge the riverbed to flush out the mud washed down by the flash flood to prevent subsequent safety hazards. When dredging, the staff starts the drive motor 306. The output end of the drive motor 306 drives the worm 305 to rotate through the coupling. The worm 305 drives the worm wheel 304 to rotate. The worm wheel 304 drives the first valve 301 to rotate in the sliding groove 303 through the first rotating shaft 302. When the first valve 301 rotates, the silt in the sliding groove 303 will be squeezed downward to slide. The silt in the moving groove 303 moves into the sand discharge hole 203, and at the same time, the silt will move out from the gap between the first valve 301 and the sand discharge hole 203 when the first valve 301 rotates, until the first valve 301 moves to be parallel to the inner wall of the sand discharge hole 203. At this time, the valve is fully opened, and the silt on the river bottom can be discharged to the greatest extent. At this time, the upper layer of water will flow into the sand discharge hole 203 from the guide hole 204. The guide hole 204 is arched, which can assist in flushing out the silt, slow down the phenomenon that the silt is discharged slowly when the valve is just opened, and ensure that the silt can be discharged smoothly, thereby improving the efficiency of silt discharge;

[0048] When the valve needs to be closed, the first valve 301 is continuously rotated until the first valve 301 rotates to the initial position. The rotation direction of the first valve 301 remains unchanged. In the process from opening to closing, the first valve 301 rotates one circle in the sliding groove 303. The rotation direction of the first valve 301 is the same as the direction of the water flow in the sand discharge hole 203. When the riverbed silt is drained, clean water is discharged. At this time, the clean water can assist the rotation of the first valve 301, reduce the resistance of the valve assembly when it is closed, and reduce the wear of the first valve 301 and the drive motor 306 during operation, thereby increasing the service life of the first valve 301 and the drive motor 306.

[0049] When a flash flood breaks out and needs to be drained in time, the first valve 301 is stuck or the drive motor 306 is damaged, and the valve assembly cannot be opened normally, as the silt increases, the pressure of the silt on the second valve 401 and the conical block 512 also increases, and the conical block 512 will apply this pressure to the second hydraulic cylinder 510. When the pressure applied by the silt to the conical block 512 exceeds the threshold of the second hydraulic cylinder 510, the second hydraulic cylinder 510 will explode, and the second hydraulic cylinder 510 will be damaged and lose support for the conical block 512. At this time, the silt will drive the conical block 512 to move in the direction of the second fixed groove 509. At this time, the silt and the conical block 512 will squeeze the water in the second fixed groove 509 and the first fixed groove 507, and the water will drive the movable column 508 to move in the first fixed groove 507. When the movable column 508 moves, it drives the movable block 501 to move, and the movable block 501 drives the second The limiting block 503 moves in the second limiting groove 404 until the second limiting block 503 is separated from the first fixed block 505. At this time, the fixation of the movable block 501 and the first connecting column 502 is released. At this time, the spring 506 extends, driving the movable block 501 to move. When the movable block 501 contacts the baffle 408, the spring 506 continues to extend, driving the movable block 501 and the baffle 408 to move. The baffle 408 drives the clamping block 407 to move in the second clamping groove 409 until the clamping block 407 is completely separated from the second clamping groove 409. At this time, the fixation between the second valve 401 and the first valve 301 is released, and the silt separates the second valve 401 from the first clamping groove 402. The silt moves out of the sand discharge hole 203 from the first clamping groove 402. At this time, the second valve 401, the connecting rod 405 and the first hinge seat 406 rotate around the second hinge seat 410, and the silt can be discharged smoothly.

[0050] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. A dam gate system with automatic obstacle removal, characterized in that: It comprises a dam body, wherein a plurality of groups of sand discharge holes and a plurality of groups of guide holes are opened in the dam body, the sand discharge holes penetrate the dam body, and the plurality of groups of guide holes are respectively connected with the plurality of groups of sand discharge holes; A movable platform is provided on the dam body, and a floating wood cleaning mechanism for cleaning floating wood is provided in the movable platform; A valve mechanism for blocking the sand discharge hole is provided in the sand discharge hole; The valve mechanism comprises a first valve, wherein an emergency valve assembly is disposed in the first valve, and the emergency valve assembly comprises a second valve, wherein a trigger element is disposed in the first valve; The second valve is fixedly connected with a connecting rod and a first hinge seat, the first valve is fixedly connected with a second hinge seat, the first hinge seat is hinged on the second hinge seat, a second clamping groove is provided on the connecting rod, a clamping block is clamped in the second clamping groove, and baffles are fixedly connected to both sides of the clamping block; Two groups of first connecting columns are arranged on the second hinged seat, and a detachable movable block is arranged at one end of the two groups of first connecting columns. Springs are sleeved on the two groups of first connecting columns, and the springs are in a compressed state. Both ends of the two groups of springs are in contact with the second hinged seat and the corresponding movable block respectively. The movable block is provided with a second limiting block, the first connecting column is provided with a second limiting groove, the second limiting groove is provided with a first fixed block, the second limiting block is slidably mounted in the second limiting groove, and the second limiting block is in contact with the first fixed block; The trigger element comprises a second hydraulic cylinder, a conical block is arranged on the telescopic end of the second hydraulic cylinder, and a base is arranged on the fixed end of the second hydraulic cylinder; The first valve is provided with a second fixing groove and two groups of first fixing grooves, the two groups of first fixing grooves are connected to the second fixing groove, the conical block is clamped at one end of the second fixing groove, and the base is located at the other end of the second fixing groove; The diameter of the middle section of the second fixed groove is larger than the diameter of the two ends, and the second fixed groove and the two groups of the first fixed grooves are filled with water; The two groups of the first fixing grooves are both slidably mounted with movable columns, and the two groups of movable columns are respectively in contact with the two groups of movable blocks.

2. The automatic obstacle-clearing dam gate system according to claim 1, characterized in that: The valve mechanism comprises a first valve, a sliding groove is provided in the sand discharge hole, the first valve is slidably mounted in the sliding groove, first rotating shafts are provided on both sides of the first valve, and the first rotating shafts are penetrated through the inner wall of the sand discharge hole; A worm wheel is arranged on one of the first rotating shafts, a worm is meshed on the worm wheel, and a driving motor is arranged at one end of the worm.

3. The automatic obstacle-clearing dam gate system according to claim 2, characterized in that: The second valve is clamped on the first valve, and a plurality of groups of first limit blocks are arranged on the second valve, and the plurality of groups of first limit blocks are clamped on the first valve.

4. The automatic obstacle-clearing dam gate system according to claim 3, characterized in that: A plurality of groups of first hydraulic cylinders are arranged at the bottom end of the movable platform, and the fixed ends of the first hydraulic cylinders are fixedly connected to the dam body.

5. The automatic obstacle-clearing dam gate system according to claim 4, characterized in that: The floating wood cleaning mechanism comprises a groove, the groove is provided at the center of the movable platform, and a plurality of groups of second connecting columns are provided on both sides of the groove; Several groups of second fixing blocks are fixedly connected to the second connecting column, several groups of third fixing grooves are opened on the movable platform, several groups of the second connecting columns are respectively located in several groups of the third fixing grooves, the second connecting column is rotatably connected to the dam body, and several groups of the second fixing blocks are located outside the third fixing grooves.

6. The automatic obstacle-clearing dam gate system according to claim 5, characterized in that: A cleaning component is arranged in the groove, and the cleaning component includes a rotating driving device, a fixed end of the rotating driving device is fixedly connected to the top of the inner wall of the groove, a first connecting block is arranged at the output end of the rotating driving device, first collecting grooves are arranged on both sides of the first connecting block, and a plurality of groups of through holes are opened at the bottom of the first collecting groove, wherein one group of the first collecting grooves is located in the groove; A salvaging element is arranged below one group of the first collecting tanks.

7. The automatic obstacle-clearing dam gate system according to claim 6, characterized in that: The salvaging element comprises a second connecting block, both sides of which are provided with second rotating shafts, a fixing frame is provided in the groove, and two groups of the second rotating shafts are rotatably connected to the fixing frame and the movable platform respectively; Third connecting blocks are arranged on both sides of the second connecting block, and second collecting troughs are fixedly connected to two groups of the third connecting blocks, and the bottom surface of the second collecting trough is arc-shaped.

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