A blocking device for water conservancy cutoff and method thereof

Abstract

The present application relates to the technical field of water conservancy engineering closure, in particular to a blocking device for water conservancy engineering closure and a method thereof. The blocking device comprises a frame body, a plurality of lifting rings are symmetrically arranged on the upper surface of the frame body, the top end of the frame body is open, a drainage part for controlling water flow is symmetrically arranged inside the frame body, an inner sealing area is formed between the two drainage parts, the drainage part rotates outward, drives the blocking part arranged at the end of the drainage part to move close to the inner wall of the frame body, the blocking part is used for forming an outer sealing area outside the drainage part and extruding the stones in the inner sealing area, and the blocking part arranged on the inner side of the two drainage parts is connected with the water flow in the outer sealing area. The flow velocity of the water flow is controlled by the drainage plate, the resistance of the drainage plate during closure can be reduced, the frame body is prevented from tilting when the frame body is placed, the frame body is matched with the dam bodies on both sides of the closure, the water flow flows away from the inside of the frame body, and thus the dam bodies on both sides are prevented from being washed away by the water flow, so as to protect the dam bodies.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering interception technology, and more specifically, to a barrier device and method for water conservancy engineering interception. Background Technology

[0002] Water conservancy projects can be classified according to their purpose or service targets as follows: flood control projects to prevent flood disasters; farmland water conservancy projects, or irrigation and drainage projects, to prevent drought, flood, and waterlogging disasters and serve agricultural production; hydroelectric power generation projects that convert water energy into electrical energy; waterway and port projects to improve and create navigation conditions; and urban water supply and drainage projects that serve industrial and domestic water use and treat and dispose of sewage and rainwater.

[0003] There are many existing technologies for flow control devices, such as:

[0004] Chinese Patent Publication No. CN113605308A discloses a flow interception device for water conservancy projects and its usage method, relating to the technical field of flow interception devices. The invention includes a mounting frame, connecting parts, and interception plates; the connecting parts are slidably fitted to the mounting frame; the rotating shaft is rotatably fitted to the connecting sleeve; a transmission assembly is engaged with a cross-shaped slot; a transmission chain meshes with the transmission assembly and the drive gear; a sealing plate is slidably fitted to the placement groove; and a ground anchor assembly is rotatably fitted to the rotating rod. The invention works by activating a first hydraulic cylinder and two second hydraulic cylinders at both ends, causing each interception plate and the ground anchor assembly to enter the water together. Once the counterweight plate is inserted into the riverbed, the first threaded column is activated, pushing the connector downwards along the mounting frame, allowing the L-shaped ground anchor rod to penetrate deeper into the riverbed, improving the stability of the device. Activating each third hydraulic cylinder resets each sealing plate, starts the drive motor, and drives the drive gear to rotate, thereby rotating the transmission chain and causing each interception plate to rotate, thus controlling the water flow.

[0005] Therefore, when diverting water in water conservancy projects, in order to prevent the intercepting plates from being washed away by the turbulent water flow, each intercepting plate is often adjusted to be parallel to the direction of the water flow before interception, so as to reduce the resistance on the intercepting plates. However, since the interception is from both sides to the middle, when the water flow is intercepted to the point of closing, the water-blocking dams on both sides are usually in an inverted trapezoidal shape, while the intercepting plates are vertical. This will cause some water to flow away between the intercepting plates and the dam body, which not only affects the interception effect, but also causes the water flow on both sides to scour the dam body, which can easily cause the dam body to collapse. Furthermore, once the intercepting device blocks the water flow, it cannot be withdrawn to intercept other interception points. Summary of the Invention

[0006] The purpose of this invention is to provide a barrier device and method for intercepting water flow in water conservancy projects, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides a blocking device for water diversion in water conservancy projects, comprising a frame with multiple hanging rings symmetrically arranged on the upper surface of the frame. The top of the frame is open, and the interior of the frame is symmetrically arranged with diversion parts for controlling water flow. An inner blocking zone is formed between the two diversion parts. The diversion parts rotate outward, causing the intercepting parts located at the ends of the diversion parts to move closer to the inner wall of the frame. The intercepting parts are used to form an outer blocking zone on the outside of the diversion parts and to squeeze the stones in the inner blocking zone. The intercepting parts located on the inner sides of the two diversion parts are connected to the water flow in the outer blocking zone. Under the action of the water flow, the intercepting parts are used to completely block the outer blocking zone and to provide support for the diversion parts, so that the stones in the inner blocking zone are tightly attached to the diversion parts.

[0008] As a further improvement to this technical solution, the drainage section includes drainage plates that are rotatably connected to the frame on both sides. The drainage plates on both sides are normally horizontal "V" shaped, and the end of the drainage plate away from the frame and its rotatable connection point is rotatably connected to the telescopic part of the hydraulic rod. One end of the hydraulic rod is rotatably connected to the top plate above the frame, and the top plate and the frame body are detachably connected.

[0009] As a further improvement to this technical solution, an auxiliary plate is rotatably connected to the inner side of the diversion plate. The auxiliary plates on both sides are used to cooperate with the diversion plates on both sides to restrict the stones in the inner sealing area.

[0010] As a further improvement to this technical solution, an interception part is provided at the end of the diversion plate. The interception part includes an interception plate with multiple drainage holes. The drainage holes are used to discharge water from the outer sealing area when the interception plate matches the frame. The interception plate is slidably connected to a slide rail, which is inserted into the frame. A stop block is symmetrically provided on the side of the interception plate near the outer sealing area.

[0011] As a further improvement to this technical solution, the interceptor plate is fixedly connected to the traction rope of the interceptor plate. The traction rope is symmetrically distributed vertically, and the other end of the traction rope is fixedly connected to the interceptor box. The two interceptor boxes on both sides are slidably connected to a connector. The slider fixedly connected to one side of the interceptor box slides in the groove opened in the diversion plate.

[0012] As a further improvement to this technical solution, a retaining ring is fixedly connected in the groove opened in the diversion plate, the retaining ring is slidably connected to the traction rope, and a first spring is provided on the side of the traction rope near the interception box, the first spring being sleeved on the traction rope.

[0013] As a further improvement to this technical solution, an auxiliary support plate is fixed on one side of the slide rail, the auxiliary support plate is rotatably connected to the upright, and the upright is coaxially connected to two auxiliary wheels.

[0014] As a further improvement to this technical solution, a blocking part is provided between the two drainage plates. The blocking part includes a blocking plate and a drainage pipe. The blocking plate is fixedly connected to a piston rod. The piston head coaxially connected to the piston rod is fitted with the drainage pipe. A second spring is sleeved on the piston rod. Corrugated pipes are symmetrically connected to both sides of the drainage pipe. The corrugated pipes are connected to through holes opened in the drainage plate. A pressure relief valve is provided in the through holes.

[0015] As a further improvement to this technical solution, the barrier plate and the drain hole are fitted together, the barrier plate is slidably connected to the slide rail, and when the barrier plate and the interceptor plate are completely overlapped, the barrier plate blocks the drain hole to restrict the water flow from the drain hole.

[0016] As a further improvement to this technical solution, a push block is provided at the other end of the drainage pipe. The push block is fixedly connected to a circular plate that fits into the drainage pipe. A pressure relief valve is provided near the push block at the connection between the corrugated pipe and the drainage pipe. The pressure relief valve is connected to the inside of the drainage pipe.

[0017] The second objective of the invention is to provide a method for operating a damming device for water conservancy projects, including any one of the above-described methods, comprising the following steps:

[0018] S1. First, hoist the frame to the interception point of the dam on both sides. Then, control the flow rate of water from the outer sealing area by adjusting the angle between the diversion plates on both sides, and fill the inner sealing area with stones.

[0019] S2. Next, after the stones in the inner sealing area are filled, the diversion plates on both sides expand outward until the interception plate blocks the outer sealing area.

[0020] S3. Then fill the outer sealing area with stones. As the number of stones increases, the water in the outer sealing area flows into the drainage pipe.

[0021] S4. Under the action of water flow, the pusher pushes the auxiliary plate to squeeze the stones in the inner sealing area again, so that the stones fit tightly with the diversion plates on both sides, thereby reducing the gap between the inner sealing area and the outer sealing area, so as to improve the sealing effect.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. In this interception device used for water conservancy projects, the flow velocity of the water is controlled by the diversion plate, which can reduce the resistance encountered by the diversion plate when intercepting the flow and prevent the frame from tilting when it is placed. The frame fits into the dam body on both sides of the interception point, and the water flows out from inside the frame, thereby preventing the dam body from being washed away by the water flow and thus protecting the dam body.

[0024] 2. In this interception device used for water conservancy projects, stones are first filled into the inner blocking area. The diversion plates on both sides drive the interception plates to move closer to the inner wall of the frame. Then, stones are filled into the outer blocking areas on both sides until both the inner and outer blocking areas are blocked. Finally, the frame is left at the interception point, and all other parts are lifted out. This improves the practicality of the device and makes it easier to use.

[0025] 3. In this interception device used for water conservancy projects, the interception boxes on both sides, together with the connecting parts, push the stones in the inner blocking area. The pusher blocks move in the opposite direction to the interception boxes, and the pusher blocks push the auxiliary plate to push the stones. The auxiliary plate provides support for the diversion plate, and the stones are once again tightly attached to the inner side of the diversion plate, thereby reducing the gap between the inner and outer blocking areas to facilitate subsequent interception.

[0026] 4. In this interception device used for water conservancy projects, when the drainage hole is completely blocked, the water flow in the external blockage area is diverted through the drainage pipe, thereby reducing the pressure of the water flow on the diversion plate and thus protecting the diversion plate and the interception plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a top view of the frame, interceptor, and barrier structure of the present invention;

[0029] Figure 3 This is a top view of the drainage section structure of the present invention;

[0030] Figure 4 This is a partial cross-section of the diversion plate and a schematic diagram of the interception section structure of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the diagram;

[0032] Figure 6 This is a right view of the connection structure between the interceptor plate and the traction rope of the present invention;

[0033] Figure 7 This is a schematic diagram of the exploded structure of the interceptor plate, barrier plate, and slide rail of the present invention;

[0034] Figure 8 This is a top view of the internal structure of the drainage pipe of the present invention (cut section).

[0035] Figure 9 This is a top view of the interceptor plate and frame closed structure of the present invention.

[0036] The meanings of the labels in the diagram are as follows:

[0037] 100. Frame; 110. Slide rail;

[0038] 200. Drainage section; 201. Hydraulic rod;

[0039] 210. Drainage plate;

[0040] 220. Auxiliary board;

[0041] 300. Interceptor; 301. Retaining ring; 302. First spring; 303. Slider;

[0042] 310. Interception plate; 311. Drainage hole; 320. Traction rope; 321. Auxiliary wheel; 330. Interception box; 331. Connector;

[0043] 400. Barrier section;

[0044] 410. Barrier plate; 411. Second spring; 420. Drainage pipe; 430. Corrugated pipe; 440. Push block. Detailed Implementation

[0045] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] like Figure 1 and Figure 2As shown, a blocking device for water diversion in water conservancy projects is provided, including a frame 100. Multiple lifting rings are symmetrically arranged on the upper surface of the frame 100. The top of the frame 100 is open, and symmetrically arranged inside the frame 100 are diversion sections 200 for controlling water flow. An inner sealing area is formed between the two diversion sections 200. When the diversion sections 200 rotate outwards, they drive the intercepting sections 300 located at the ends of the diversion sections 200 to move closer to the inner wall of the frame 100. The intercepting sections 300 are used to... The outer side of the diversion section 200 forms an outer blocking zone, which squeezes the stones in the inner blocking zone. The interception section 300 set on the inner side of the two diversion sections 200 connects the water flow in the outer blocking zone. Under the action of the water flow, the interception section 300 is used to completely block the outer blocking zone and to provide support for the diversion section 200, so that the stones in the inner blocking zone are close to the diversion section 200. Then, stones are filled into the outer blocking zone, thereby achieving the interception of the water flow.

[0049] It should be noted that the inner blocking area mentioned above is the angle between the two drainage sections 200, and the outer blocking area is the area between the outer side of the drainage section 200 and the inner wall of the frame 100.

[0050] Therefore, when intercepting water flow, the entire unit is first hoisted to the interception point. The flow rate is controlled by the diversion part 200. Then, stones are first filled into the inner sealing area. Next, the diversion parts 200 on both sides drive the interception part 300 to move closer to the inner wall of the frame 100, increasing the water pressure in the outer sealing area. The water flow in the outer sealing area pushes the interception part 300 to completely block the water flow through the outer sealing area. The guided water flow is used to support the diversion part 200 until the outer sealing areas on both sides are also completely filled with stones. Finally, the frame 100 is left at the interception point, and all other parts are hoisted out.

[0051] The purpose of this is to not only reduce the resistance encountered by the diversion section 200 during the interception, but also to ensure that the frame 100 fits into the dam body on both sides of the interception point, preventing the dam body from being washed away by the water flow. Furthermore, by intercepting the water flow at the interception point in stages, the water flow is gradually cut off, preventing the impact force of the water flow from acting entirely on the blocking stones at once, which would cause the blocking stones to be washed away by the water flow and affect the blocking effect.

[0052] Considering that the frame 100 experiences significant resistance when first placed at the interception point, multiple ground anchor components (which are existing technologies and will not be described in detail here) can be installed directly below the frame 100 to increase its stability and prevent the frame 100 from tilting due to the impact of the water flow, thereby ensuring the stability of the frame 100.

[0053] Furthermore, based on the above structure, combined with Figure 3The structure of the diversion section 200 is disclosed first. The diversion section 200 includes diversion plates 210 that are rotatably connected to the frame 100 on both sides. The diversion plates 210 are normally horizontal "V" shaped, and the end of the diversion plate 210 away from the frame 100 and its rotatable connection point is rotatably connected to the telescopic part of the hydraulic rod 201. One end of the hydraulic rod 201 is rotatably connected to the top plate above the frame 100. The top plate and the main body of the frame 100 are detachably connected. Before the frame 100 is hoisted to the interception point, the included angle between the diversion plates 210 is adjusted to the minimum by the hydraulic rods 201 on both sides. This is so that when the diversion plates 210 are submerged in the water flow, the force of the water flow on the diversion plates 210 can be reduced, and the excessive shaking of the frame 100 can be prevented from affecting the fit between the frame 100 and the sides of the dam.

[0054] Then, stones are first filled into the inner sealing area. To prevent the accumulated stones from sliding around, an auxiliary plate 220 is rotatably connected to the inner side of the diversion plate 210. The auxiliary plates 220 on both sides are used to cooperate with the diversion plates 210 on both sides to restrict the stones in the inner sealing area, so that the inner sealing area is filled with stones. At this time, the filled stones provide a certain support for the diversion plates 210 on both sides, reducing the tension on the hydraulic rod 201.

[0055] At the same time, water flows from the outer sealing area to the other side of the frame 100 (reference). Figure 2 As shown, after the stones in the inner sealing area are filled, the hydraulic rod 201 pulls the diversion plate 210 to rotate, increasing the angle between the two diversion plates 210. During this process, the interception part 300 gradually blocks the outer sealing area under the fluctuation of the diversion plate 210, thus facilitating the sealing work of the outer sealing area in the later stage.

[0056] Below Figure 3 Based on and combined Figure 4 As shown, the specific structure of the interception section 300 is disclosed. The interception section 300 is provided at the end of the diversion plate 210. The interception section 300 includes an interception plate 310 with multiple drainage holes 311. The drainage holes 311 are used to discharge water from the outer sealing area when the interception plate 310 matches the frame 100. The interception plate 310 is slidably connected to the slide rail 110, and the slide rail 110 is inserted into the frame 100. A stop block is symmetrically provided on the side of the interception plate 310 near the outer sealing area. During the process of the diversion plate 210 being pushed outward, the stop block abuts against the diversion plate 210, causing the interception plate 310 to move closer to the inner wall of the frame 100 until it matches the inner wall of the frame 100.

[0057] In the above process, the use of multiple drainage holes 311 can prevent the pressure on the interceptor plate 310 from increasing due to the action of water flow after the outer sealing area is completely blocked. This allows the water flow in the inner sealing area to be discharged from one side to the other, reducing the pressure on the interceptor plate 310 and thus protecting the interceptor plate 310.

[0058] As the angle between the two diversion plates 210 gradually increases, the stones in the inner sealing area also gradually separate from the diversion plate 210. As a result, when the diversion plate 210 is lifted in the later stage, the gap between the outer sealing area and the inner sealing area is large, causing too much water to flow out from the gap, which affects the interception effect.

[0059] To this end, the interceptor plate 310 is fixedly connected to the traction rope 320, which is symmetrically distributed vertically. The other end of the traction rope 320 is fixedly connected to the interceptor box 330. A connecting piece 331 is slidably connected between the two interceptor boxes 330. A slider 303 fixedly connected to one side of the interceptor box 330 slides in a groove opened within the diversion plate 210. On the other hand, an auxiliary support plate is fixed to one side of the slide rail 110. The auxiliary support plate is rotatably connected to a vertical rod, which is coaxially connected to two auxiliary wheels 321. The auxiliary wheels 321 are adapted to the corresponding traction ropes 320. Therefore, when the interceptor plate 310 slides outward, it pulls the traction rope 320, causing the interceptor box 330 to slide along the inner side of the diversion plate 210. The interceptor boxes 330 on both sides, in conjunction with the connecting piece 331, push the stones in the inner blocking area, causing the stones to re-adhere to the inner side of the diversion plate 210, thereby reducing the gap between the inner and outer blocking areas for later interception.

[0060] To ensure that the interceptor box 330 can return to its initial state after the flow is cut off (i.e., the interceptor boxes 330 on both sides completely enclose the connector 331), therefore, in combination with Figure 4 and Figure 5 As shown, a retaining ring 301 is fixedly connected in the groove opened in the diversion plate 210. The retaining ring 301 is slidably connected to the traction rope 320. A first spring 302 is provided on the side of the traction rope 320 near the interception box 330. The first spring 302 is sleeved on the traction rope 320. The elastic potential energy of the first spring 302 is used to push the interception box 330 to return it to its initial state so that it can be reused later.

[0061] When sealing off the external sealing area, as stones are piled up and adhered to the interceptor plate 310, the drainage hole 311 is gradually blocked. This increases the pressure on the diversion plate 210. In order to reduce the pressure on the diversion plate 210, when the drainage hole 311 is completely blocked, the water flow in the external sealing area is diverted through the interceptor 300, thereby reducing the pressure of the water flow on the diversion plate 210.

[0062] Therefore, in Figure 4 Based on and combined Figure 8As shown, the specific structure of the blocking part 400 is disclosed. The blocking part 400 is provided between the two diversion plates 210. The blocking part 400 includes a blocking plate 410 and a drainage pipe 420. The blocking plate 410 is fixedly connected to a piston rod, and a piston head coaxially connected to the piston rod is fitted with the drainage pipe 420. A second spring 411 is fitted on the piston rod. On the other hand, corrugated pipes 430 are symmetrically connected to both sides of the drainage pipe 420. The corrugated pipes 430 connect to through holes opened in the diversion plates 210, and pressure relief valves are installed in the through holes. Figure 8 Based on and combined Figure 9 (As shown). In this way, when the drain hole 311 is blocked, the water pressure in the blocked area breaks through the pressure relief valve, and the bellows 430 guides the water flow in the outer blocked area to the interior of the drain pipe 420, and uses the water flow to push the piston head to move.

[0063] Combination Figure 6 and Figure 7 As shown, the barrier plate 410 and the drain hole 311 are fitted together. The barrier plate 410 is slidably connected to the slide rail 110. When the barrier plate 410 and the interceptor plate 310 are completely overlapped, the barrier plate 410 blocks the drain hole 311 to restrict the water flow from the drain hole 311. At the same time, the barrier plate 410 also supports the interceptor plate 310 to improve the interceptor plate 310's resistance to water flow.

[0064] It should be noted that during the movement of the interceptor plate 310 and the barrier plate 410, the barrier plate 410 is always in contact with the interceptor plate 310 in order to provide support for the interceptor plate 310.

[0065] Considering that the water diverted in the drainage pipe 420 needs to be discharged, a pusher block 440 is installed at the other end of the drainage pipe 420. The pusher block 440 is fixedly connected to a circular plate that fits into the drainage pipe 420. A pressure relief valve is installed near the pusher block 440 at the connection between the corrugated pipe 430 and the drainage pipe 420. The pressure relief valve is connected to the inside of the drainage pipe 420. When the water pressure inside the drainage pipe 420 increases, the water flow will push the circular plate to the side, and the water will flow out from the pressure relief valve. The pusher block 440 pushes the auxiliary plate 220 to squeeze the stones in the inner sealing area (in conjunction with...). Figure 3 (As shown), thereby reducing the gap between the stone and the diversion plate 210 to improve the interception effect of the water flow.

[0066] In addition, the pusher block 440 supports the auxiliary plate 220, and the auxiliary plate 220 supports the diversion plate 210, so that the interception plate 310 fits tightly with the frame 100 to prevent water from overflowing from the gap.

[0067] Finally, after both the outer and inner sealing areas are filled with stones, the top plate is removed, and the steel wire rope is tied to the lifting rings on the top plate, the diversion plate 210, and the slide rail 110. The whole thing is pulled out, leaving the bottom of the frame 100 at the interception point. Then, the water flows along the gap between the inner and outer sealing areas. At this time, the water flow velocity is small, and it can be blocked with stones.

[0068] In summary, the working principle of this scheme is as follows: First, the frame 100 is hoisted to the interception point of the two dams. Then, the flow rate of water from the outer sealing area is controlled by adjusting the angle between the two diversion plates 210, and stones are filled into the inner sealing area.

[0069] Next, after the stones in the inner sealing area are filled, the diversion plates 210 on both sides expand outward until the interception plate 310 blocks the outer sealing area. During this process, the interception box 330, together with the connector 331, squeezes the stones in the inner sealing area and then fills the outer sealing area with stones. As the number of stones increases, the water in the outer sealing area flows into the drainage pipe 420. On the one hand, the barrier plate 410 and the interception plate 310 close, blocking the drain hole 311. On the other hand, under the action of the water flow, the pusher 440 pushes the auxiliary plate 220 to squeeze the stones in the inner sealing area again, so that the stones fit tightly with the diversion plates 210 on both sides, thereby reducing the gap between the inner sealing area and the outer sealing area to improve the sealing effect.

[0070] Finally, after the sealing device is removed, the gap between the inner and outer sealing areas should be filled.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A barrier device for intercepting water flow in a water conservancy project, comprising a frame (100), wherein a plurality of lifting rings are symmetrically arranged on the upper surface of the frame (100), and the top of the frame (100) is open, characterized in that: The frame (100) is symmetrically provided with a water diversion section (200) for controlling the water flow. An inner blocking area is formed between the two sides of the water diversion section (200). The water diversion section (200) rotates outward, causing the intercepting section (300) at the end of the water diversion section (200) to move closer to the inner wall of the frame (100). The intercepting section (300) is used to form an outer blocking area on the outside of the water diversion section (200) and to squeeze the stones in the inner blocking area. The intercepting section (300) provided on the inner side of the two sides of the water diversion section (200) connects to the water flow in the outer blocking area. Under the action of the water flow, the intercepting section (300) is used to completely block the outer blocking area and to provide support for the water diversion section (200) so that the stones in the inner blocking area are close to the water diversion section (200). The drainage section (200) includes drainage plates (210) that are rotatably connected to the frame (100) on both sides. The drainage plates (210) on both sides are normally horizontal "V" shaped. The end of the drainage plate (210) away from the frame (100) and its rotatable connection point is rotatably connected to the telescopic part of the hydraulic rod (201). One end of the hydraulic rod (201) is rotatably connected to the top plate above the frame (100). The top plate and the main body of the frame (100) are detachably connected. An interception section (300) is provided at the end of the diversion plate (210). The interception section (300) includes an interception plate (310) with multiple drainage holes (311). The drainage holes (311) are used to discharge water from the outer sealing area when the interception plate (310) matches the frame (100). The interception plate (310) is slidably connected to a slide rail (110). The slide rail (110) is inserted into the frame (100). The interception plate (310) has symmetrically arranged baffles on the side near the outer sealing area. A blocking part (400) is provided between the two diversion plates (210). The blocking part (400) includes a blocking plate (410) and a drainage pipe (420). The blocking plate (410) is fixedly connected to a piston rod. The piston head coaxially connected to the piston rod is fitted with the drainage pipe (420). A second spring (411) is fitted on the piston rod. Corrugated pipes (430) are symmetrically connected to both sides of the drainage pipe (420). The corrugated pipes (430) are connected to the through holes opened in the diversion plate (210). A pressure relief valve is provided in the through holes.

2. The intercepting device for water diversion in water conservancy projects according to claim 1, characterized in that: An auxiliary plate (220) is rotatably connected to the inner side of the diversion plate (210). The auxiliary plates (220) on both sides are used to cooperate with the diversion plates (210) on both sides to restrict the stones in the inner sealing area.

3. The intercepting device for water conservancy project diversion according to claim 1, characterized in that: The interceptor plate (310) is fixedly connected to the traction rope (320) of the interceptor plate (310). The traction rope (320) is symmetrically distributed vertically, and the other end of the traction rope (320) is fixedly connected to the interceptor box (330). The two sides of the interceptor boxes (330) are slidably connected to the connector (331). The slider (303) fixedly connected to one side of the interceptor box (330) slides in the groove opened in the diversion plate (210).

4. The intercepting device for water diversion in water conservancy projects according to claim 3, characterized in that: A retaining ring (301) is fixedly connected in the groove of the diversion plate (210). The retaining ring (301) is slidably connected to the traction rope (320). A first spring (302) is provided on the side of the traction rope (320) near the interception box (330). The first spring (302) is sleeved on the traction rope (320).

5. The intercepting device for water diversion in water conservancy projects according to claim 1, characterized in that: An auxiliary support plate is fixed on one side of the slide rail (110). The auxiliary support plate is rotatably connected to the upright, and the upright is coaxially connected to two auxiliary wheels (321).

6. The intercepting device for water conservancy project diversion according to claim 1, characterized in that: The barrier plate (410) and the drain hole (311) are attached together. The barrier plate (410) is slidably connected to the slide rail (110). When the barrier plate (410) and the interceptor plate (310) are completely overlapped, the barrier plate (410) blocks the drain hole (311) to restrict the water flow from the drain hole (311).

7. The intercepting device for water conservancy project diversion according to claim 1, characterized in that: A push block (440) is provided at the other end of the drainage pipe (420). The push block (440) is fixedly connected to a circular plate that fits into the drainage pipe (420). A pressure relief valve is provided at the connection between the corrugated pipe (430) and the drainage pipe (420) on the side near the push block (440). The pressure relief valve is connected to the inside of the drainage pipe (420).

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