A water conservancy construction is used to cut off device

Abstract

The application discloses a water interception device for water conservancy construction and relates to the field of water conservancy construction.The water interception device comprises a first baffle, a second baffle and a bottom support, the first baffle and the second baffle are fixed on the two sides of the bottom support, a fixing bolt is arranged between the first baffle and the second baffle, the fixing bolt penetrates through the bottom support, a plurality of locking bolts are connected to the bottom end of the bottom support, the second baffle is in contact with water, and the bottom end of the first baffle is connected to two groups of water suction pumps.The water interception device can collect water flow, and after the water flows into the water interception device, the water flow is continuously filtered through a coarse filter screen and a medium filter screen, and the filtered impurities are flushed into a collecting box through the water flow, so that the collecting box can be pulled out of the isolation plate through a pull rope when cleaning is needed, the interference of the impurities on the water suction pump can be effectively reduced, and the service life of the water suction pump is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water conservancy construction, in particular to a water conservancy construction flow interception device. BACKGROUND

[0002] The core purpose of river interception is to create controllable and safe working conditions for water conservancy construction. When the construction involves foundation engineering in the river, water flow will directly cause problems such as foundation pit collapse, unqualified concrete pouring quality, and equipment flooding. Although personnel can work in the water flow, there is still some risk. After interception, the accumulated water in the construction area is pumped out to form a water-free or shallow water environment, ensuring the precise progress of processes such as excavation, reinforcement binding, and concrete pouring.

[0003] Prior art, such as Chinese patent number CN219731884U, includes a vertical plate frame;

[0004] A hollow column is connected to the bottom of the vertical plate frame, and a flow interception baffle is arranged inside the hollow column;

[0005] A first movable sleeve is installed on the upper side of the hollow column, and an inner sleeve is movably installed inside the first movable sleeve. A square sleeve frame is connected to the outer side of the inner sleeve, and a circular arc net cover frame is installed on the inner wall of the square sleeve frame;

[0006] A second movable sleeve is connected to the bottom of the square sleeve frame, and a corresponding waterproof hydraulic lifting pump rod is movably installed at the bottom of the second movable sleeve. A third movable sleeve corresponding to the bottom of the hollow column is movably installed at the bottom of the waterproof hydraulic lifting pump rod.

[0007] The waterproof hydraulic lifting pump rod is an existing automatic lifting pump structure, which is used in cooperation with the first movable sleeve, the second movable sleeve, and the third movable sleeve to make the square sleeve frame expand upward by 90 degrees.

[0008] In the prior art, during the river interception process, only one end of the river is usually sealed. However, the river flow is constantly flowing, and the water level on the side of the intercepted river will continue to rise for a long time. The water pressure on one side of the interception device will be too large for a long time, and the water level will also rise, which can easily cause the river water to flow over the interception device. In addition, during the interception process in the prior art, the water flow will carry a lot of debris attached to the outside of the device, and the impurities will float above the water surface. For a long time, the river water interception equipment will be blocked. SUMMARY

[0009] Therefore, the present application aims to provide a water conservancy construction flow interception device to solve the technical problems of high water level and impurity blockage.

[0010] To achieve the above object, the application provides the following technical scheme: a water conservancy construction cut-off device, comprising a cut-off device, the cut-off device comprises a first baffle, a second baffle and a bottom support, the first baffle and the second baffle are fixed on both sides of the bottom support, and a fixing bolt is installed between the first baffle and the second baffle, the fixing bolt penetrates the bottom support, a plurality of locking bolts are connected to the bottom end of the bottom support, the second baffle is in contact with water, the bottom end of the first baffle is connected to two groups of water suction pumps, the input end of the water suction pump is located between the first baffle and the second baffle, the output end of the water suction pump is connected to a water pipe, a coarse filter screen is provided at the top end of the second baffle, an upper reinforcing plate is installed between the first baffle and the second baffle, isolation plates are installed on both sides of the upper reinforcing plate, a collection box is installed between the isolation plates and the bottom support, a pull rope is connected to the top end of the collection box, the top end of the pull rope extends to the outside of the cut-off device, and a support winding mechanism collects the pull rope, a water inlet is provided in the inner wall of the second baffle, a floating mechanism is installed on the inner side of the water inlet, lower and upper floating buoys are respectively connected to the bottom end and the top end of the floating mechanism, an extension plate is connected to the top end of the upper floating buoy, a top rod is installed at the top end of the extension plate, an insulating sealing tube is installed above the floating mechanism between the first baffle and the second baffle, a detector is connected to the bottom end of the insulating sealing tube, the detector is located directly above the top rod, the end of the insulating sealing tube is connected to the water suction pump, and the detector and the water suction pump are connected through wires.

[0011] By adopting the above technical scheme, the river can be conveniently cut off, and during the cutting-off process, the water flow can be filtered in multiple layers through a plurality of filter screens, and after filtering, the collected impurities are collected by the collection box, when the water level is too high, the floating mechanism moves upward and contacts the detector, thereby starting the water suction pump to discharge water, thereby avoiding the water level being too high.

[0012] The application further provides that a lower reinforcing plate is installed below the upper reinforcing plate inside the cut-off device, and the lower reinforcing plate and the upper reinforcing plate form a rectangular structure, and the lower reinforcing plate and the upper reinforcing plate are fixedly connected through bolts.

[0013] As a preferred, the upper and lower reinforcing plates can be used to strengthen the cut-off device and improve the strength of the cut-off device.

[0014] The application further provides that a middle filter screen is connected to the edge of the upper reinforcing plate, and the middle filter screen extends to the isolation plate, a drain groove is provided at the position where the isolation plate is connected to the middle filter screen, and the bottom end of the middle filter screen is located above the collection box.

[0015] As a preferred, the water flow can be conveniently driven, and part of the water flow can flow along the upper reinforcing plate to flush the impurities into the isolation plate.

[0016] The present application is further provided that the outer side of the coarse filter screen is provided with a triangular mesh surface, and both ends of the coarse filter screen are attached to the outer side of the isolation plate.

[0017] As preferred, the large impurities can be conveniently moved along the outer side of the coarse filter screen into the isolation plate.

[0018] The present application is further provided that the bottom end of the isolation plate is provided with grooves on the side of the collection box, and the grooves are connected to the output end of the water suction pump.

[0019] As preferred, the water entering the collection box can be conveniently discharged through the fine filter screen.

[0020] The present application is further provided that the support winding mechanism comprises a support frame and a take-up frame, the top end of the support frame is connected with a rotating wheel, the inside of the take-up frame is provided with a winding wheel and a handle, and one end of the pull rope is fixed in the winding wheel.

[0021] As preferred, the pull rope can be conveniently wound, and the collection box can be taken out at the same time.

[0022] The present application is further provided that the top end of the insulation sealing pipe is connected with a fixed plate, the width of the fixed plate is greater than the width of the insulation sealing pipe, and the fixed plate is fixed between the first baffle and the second baffle.

[0023] As preferred, the insulation sealing pipe can be protected by the fixed plate, so as to avoid the interference of water flow on the insulation sealing pipe and the floating mechanism.

[0024] The present application is further provided that the bottom end of the detector is provided with a groove, a sliding plate is movably connected in the groove, a sealing block is fixed to the position close to the detector, the sealing block is inserted into the groove, a limiting spring is connected between the sealing block and the detector, a plurality of insertion rods are connected to the end of the sealing block, and the insertion rods extend to the inside of the insulation sealing pipe through the limiting spring.

[0025] As preferred, the extrusion force of the outside can be conveniently collected, and the water suction pump can be conveniently controlled.

[0026] The present application is further provided that a rear intercepting device is also installed in the river channel, the rear intercepting device is also composed of two side sealing plates and a bottom support structure, a vertical reinforcing plate is installed in the inside of the rear intercepting device, the vertical reinforcing plate is vertically arranged, a water sending pump is installed on the side of the vertical reinforcing plate, the water sending pump is connected with a water pipe, a stop valve and a water inlet are connected to the output end of the water sending pump, the stop valve is located in the middle of the rear intercepting device, and the water inlet is located on the other side of the rear intercepting device.

[0027] As preferred, the downstream water level can be intercepted, reducing the interference of downstream water level on construction.

[0028] In summary, the present application mainly has the following beneficial effects:

[0029] 1、The water flow can be collected by the intercepting device, and the water flows into the intercepting device, and the water flow is continuously filtered by the coarse filter screen and the medium filter screen, and the impurities filtered by the water flow are flushed into the collection box, and when cleaning is needed, the collection box is pulled out of the partition plate through the pull rope, which can effectively reduce the interference of impurities on the water suction pump and prolong the service life of the water suction pump.

[0030] 2、The intercepting device and the floating mechanism can change the power of the water suction pump by the buoyancy of the floating mechanism and the extrusion of the detector during use, so that the water suction pump can operate at different powers in different environments, thereby effectively improving the operation effect of the water suction pump and reducing power loss.

[0031] 3、The rear intercepting device can isolate the middle position of the river channel, intercept the river from both sides, improve the waterproof effect during use, and when the upstream water flows, the water is sent to the water pump position through the water pipe, the stop valve is opened, and the water is sent to the downstream by the water pump, thereby improving the drainage effect and reducing the backflow. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The structure diagram of the intercepting device of the present application is shown in the figure;

[0033] Figure 2 The structure diagram of the intercepting device of the present application is shown in the figure;

[0034] Figure 3 The internal structure diagram of the intercepting device of the present application is shown in the figure;

[0035] Figure 4 The structure diagram of the second baffle and the floating mechanism of the present application is shown in the figure;

[0036] Figure 5 The structure diagram of the floating mechanism of the present application is shown in the figure;

[0037] Figure 6 The structure diagram of the impurity collection and removal of the present application is shown in the figure;

[0038] Figure 7 The structure diagram of the collection box of the present application is shown in the figure;

[0039] Figure 8 The structure diagram of the fixed plate and the insulating sealing pipe of the present application is shown in the figure;

[0040] Figure 9A local enlarged structural schematic view at B in the present application Figure 8 A local enlarged structural schematic view at B in the present application

[0041] Figure 10 A structural schematic view of the second embodiment of the present application

[0042] Figure 11 A structural schematic view of the second embodiment of the present application

[0043] Figure 12 A structural schematic view of the second embodiment of the present application

[0044] Explanation of reference numerals:

[0045] 1, intercepting device; 101, first baffle; 102, second baffle; 1021, water inlet; 103, upper reinforcing plate; 1031, middle filter screen; 104, coarse filter screen; 105, isolation plate; 106, bottom support; 107, fixing bolt; 2, water suction pump; 3, support frame; 4, take-up frame; 5, insulating sealing tube; 501, detector; 502, sliding plate; 503, sealing block; 504, limiting spring; 505, insertion rod; 6, water pipe; 7, rear intercepting device; 701, vertical reinforcing plate; 8, water delivery pump; 801, stop valve; 802, water delivery port; 9, pull rope; 10, lower reinforcing plate; 11, floating mechanism; 1101, lower float; 1102, upper float; 1103, protection plate; 1104, extension plate; 1105, top rod; 12, locking bolt; 13, collection box; 1301, fine filter screen; 1302, hook; 14, fixing plate. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0047] The embodiments of the present application will be described below according to the overall structure of the present application.

[0048] First embodiment:

[0049] Please refer to Figures 1 to 4 A water conservancy construction intercepting device, comprising an intercepting device 1, the intercepting device 1 comprising a first baffle 101, a second baffle 102 and a bottom support 106, the first baffle 101 and the second baffle 102 are fixed on both sides of the bottom support 106, and a fixing bolt 107 is installed between the first baffle 101 and the second baffle 102, the fixing bolt 107 penetrates through the bottom support 106, a plurality of locking bolts 12 are connected to the bottom end of the bottom support 106, the second baffle 102 is in contact with water, and can isolate water.

[0050] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , the bottom end of the first baffle plate 101 is connected with two groups of water suction pumps 2, the input end of the water suction pump 2 is located between the first baffle plate 101 and the second baffle plate 102, and the output end of the water suction pump 2 is connected with a water pipe 6. The top end of the second baffle plate 102 is provided with a coarse filter screen 104, an upper reinforcing plate 103 is installed between the first baffle plate 101 and the second baffle plate 102, isolation plates 105 are installed on both sides of the upper reinforcing plate 103, a collection box 13 is installed between the isolation plate 105 and the bottom support 106, a pull rope 9 is connected to the top end of the collection box 13, the top end of the pull rope 9 extends to the outside of the water interception device 1, and a supporting winding mechanism collects the pull rope 9, a groove is formed in the side of the collection box 13 at the bottom end of the isolation plate 105, and the groove is connected with the output end of the water suction pump 2, a middle filter screen 1031 is connected to the edge of the upper reinforcing plate 103, and the middle filter screen 1031 extends to the isolation plate 105, a drain groove is formed at the position where the isolation plate 105 and the middle filter screen 1031 are connected, and the bottom end of the middle filter screen 1031 is located above the collection box 13, a fine filter screen 1301 is connected to the side of the collection box 13, the fine filter screen 1301 is aligned with the groove, can filter the entering water, and collect impurities through the collection box 13, when the impurities need to be taken out, the collection box 13 is taken out through the pull rope 9, improving the impurity cleaning effect.

[0051] Please refer to Figures 3 to 5 , the inner wall of the second baffle plate 102 is provided with a water inlet 1021, the inner side of the water inlet 1021 is provided with a floating mechanism 11, the bottom end and the top end of the floating mechanism 11 are respectively connected with a lower floating buoy 1101 and an upper floating buoy 1102, the top end of the upper floating buoy 1102 is connected with an extension plate 1104, and the top end of the extension plate 1104 is provided with a top rod 1105, an insulating sealing pipe 5 is installed between the first baffle plate 101 and the second baffle plate 102 above the floating mechanism 11, the top end of the insulating sealing pipe 5 is connected with a fixed plate 14, and the width of the fixed plate 14 is greater than the width of the insulating sealing pipe 5, the fixed plate 14 is fixed between the first baffle plate 101 and the second baffle plate 102, facilitating the movement of the floating mechanism by the water level during the growth of the river water, so as to open the water inlet 1021 and connect the water with the inside of the floating mechanism 11.

[0052] Please refer to Figures 3 to 9The bottom end of the insulating sealing tube 5 is connected to a detector 501. The bottom end of the detector 501 has a groove, and a sliding plate 502 is movably connected in the groove. A sealing block 503 is fixed near the detector 501 on the sliding plate 502. The sealing block 503 is inserted into the groove. A limit spring 504 is connected between the sealing block 503 and the detector 501. Multiple sets of insert rods 505 are connected to the end of the sealing block 503. The insert rods 505 pass through the limit spring 504 and extend into the interior of the insulating sealing tube 5. The detector 501 is located directly above the top rod 1105. The end of the insulating sealing tube 5 is connected to the water pump 2. The detector 501 is connected to the water pump 2 through a wire. The water level drives the floating mechanism 11 to move upward until the top rod 1105 is in contact with the detector 501, thereby controlling the water pump 2. The greater the squeezing force, the longer the water pump 2 runs.

[0053] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 Inside the flow interceptor 1, a lower reinforcing plate 10 is installed directly below the upper reinforcing plate 103. The lower reinforcing plate 10 and the upper reinforcing plate 103 form a rectangular structure. The lower reinforcing plate 10 and the upper reinforcing plate 103 are fixedly connected by bolts, which can improve the strength of the flow interceptor 1 and increase its service strength.

[0054] For details regarding the above embodiments, please refer to [link / reference]. Figures 1 to 3 The outer side of the coarse filter 104 has a triangular mesh surface, and both ends of the coarse filter 104 are attached to the outer side of the isolation plate 105. It can divert impurities by the inclined surface, so that the water flow can carry the impurities to the position of the isolation plate 105.

[0055] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 6 The support and winding mechanism includes a support frame 3 and a winding frame 4. The top of the support frame 3 is connected to a rotating wheel, and the inside of the winding frame 4 is equipped with a winding wheel and a handle. One end of the pull rope 9 is fixed inside the winding wheel, which can easily wind up the pull rope 9 to remove the collection box 13.

[0056] Second embodiment: Please refer to Figures 10 to 12For the second embodiment of the application, the difference from the first embodiment is that the rear intercepting device 7 is additionally installed inside the river channel, the rear intercepting device 7 is also composed of two side sealing plates plus a bottom support structure, and a vertical reinforcing plate 701 is installed inside the rear intercepting device 7, the vertical reinforcing plate 701 is vertically arranged, a water sending pump 8 is installed on the side surface of the vertical reinforcing plate 701, the water sending pump 8 is connected with the water pipe 6, a stop valve 801 and a water sending opening 802 are connected with the output end of the water sending pump 8, the stop valve 801 is located in the middle of the rear intercepting device 7, and the water sending opening 802 is located on the other side of the rear intercepting device 7, so that the middle position of the river can be intercepted, the water of the upstream and downstream does not affect the construction, the normal flow of the river is ensured, and the downstream is not affected, and secondly, the water pressure can be increased through the water sending pump 8, so that the water is conveniently discharged into the downstream.

[0057] In use, first, the intercepting device 1 needs to be assembled, the first baffle 101 and the second baffle 102 are fixed on both sides of the bottom support 106, and at the same time, the upper reinforcing plate 103, the isolation plate 105 and the lower reinforcing plate 10 are installed between the first baffle 101 and the second baffle 102, and the first baffle 101 and the second baffle 102 are fixed on both sides of the bottom support 106 through the fixing bolts 107 penetrating through the bottom support 106, then the locking bolts 12 are inserted into the openings on the bottom support 106, then the assembled intercepting device 1 is installed inside the river channel, the position of the second baffle 102 is aligned with the water flow direction, then the water downstream of the intercepting device 1 is pumped away, after pumping, the two water suction pumps 2 are installed at the bottom end of the first baffle 101 and located outside the lower reinforcing plate 10, the wires in the insulating sealing pipe 5 are connected with the water suction pump 2, the connection between the detector 501 and the water suction pump 2 is realized, and the water suction pump 2 is started when the detector 501 receives upward extrusion;

[0058] When the river water level rises, the water level of the river rises to the position of the coarse filter screen 104, the water passes through the coarse filter screen 104 and enters the upper reinforcing plate 103, and flows downward along the upper reinforcing plate 103, and the larger impurities in the water are moved toward the position of the isolation plate 105 along the inclined surface outside the coarse filter screen 104 under the action of the water flow, and finally fall into the collection box 13, the bottom end of the upper reinforcing plate 103 is connected with the medium filter screen 1031, the medium impurities in the water are filtered, and the impurities slide downward along the upper reinforcing plate 103 and finally enter the inside of the isolation plate 105, the water flow drives the impurities to flow downward and finally enter the collection box 13, so that the collection of impurities is realized, when the impurities in the collection box 13 are too much, the rotating handle on the take-up reel 4 is used to wind the pull rope 9, so that the collection box 13 is pulled upward from the bottom of the isolation plate 105, so that the collection box 13 is pulled out, at this time, the impurities in the collection box 13 are cleaned to prevent the collection box 13 from being blocked (and the fine filter screen 1301 is arranged on the side surface of the collection box 13, which can facilitate the water flow)

[0059] Subsequently, the water level between the first baffle 101 and the second baffle 102 rises continuously until the water level is attached to the bottom end of the floating mechanism 11, at this time, the water level passes the lower floating buoy, the lower floating buoy 1101 generates buoyancy with water, moves upward, thereby driving the whole floating mechanism 11 to move upward, at this time, the water inlet 1021 is opened, connected with the external water source, and then the floating mechanism 11 continues to move upward until the detector 501 at the bottom end of the insulating sealing tube 5 is attached, at this time, the detector 501 is extruded by the buoyancy of the lower floating buoy 1101, the extruded detector 501 transmits signals to the water suction pump 2 through the wire, the water suction pump 2 operates, and the water between the first baffle 101 and the second baffle 102 is pumped out and sent out through the water pipe 6, thereby discharging the continuously flowing water, if the water level continues to rise at this time, the water level reaches the upper floating buoy 1102, the upper floating buoy 1102 also generates additional buoyancy, the buoyancy continues to increase, further extruding the detector 501, thereby further extruding the limiting spring 504, thereby increasing the insertion distance of the insertion rod 505, the sensor detects the change of the buoyancy, the external control device identifies, increases the power supply of the water suction pump 2, and makes the water suction pump 2 operate more efficiently, thereby increasing the pumping efficiency, and avoiding the continuous growth of the water level;

[0060] When the water level continues to decrease, at this time, the water falling through the upper reinforcing plate 103 is reduced until it disappears, but at this time, the water suction pump 2 still continuously pumps the water between the first baffle 101 and the second baffle 102, and the water inlet 1021 is still continuously connected with the external water source, when the water gradually decreases, the external water level synchronously decreases with the water level between the first baffle 101 and the second baffle 102, then when the water level moves below the upper floating buoy 1102, the pressure of the upper floating buoy 1102 gradually decreases, when the water level is completely separated from the upper floating buoy 1102, the water suction pump 2 still operates at high speed to discharge water, when the water level moves below the lower floating buoy 1101, the lower floating buoy 1101 moves downward with the water level, at this time, the top rod 1105 is separated from the detector 501, but the detector 501 still controls the water suction pump 2 to operate at high speed, thereby avoiding the problem that the water suction pump 2 stops when the detector 501 is separated, the water level rises again to contact, thereby causing the water suction pump 2 to operate intermittently, thereby facilitating the normal operation of the water suction pump 2.

[0061] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A closure device for hydraulic construction, comprising a closure device (1), characterized in that: The intercepting device (1) comprises a first baffle (101), a second baffle (102) and a bottom support (106), the first baffle (101) and the second baffle (102) are fixed on both sides of the bottom support (106), a fixing bolt (107) is installed between the first baffle (101) and the second baffle (102), the fixing bolt (107) penetrates through the bottom support (106), a plurality of locking bolts (12) are connected to the bottom end of the bottom support (106), the second baffle (102) is in contact with water, the bottom end of the first baffle (101) is connected with two groups of water suction pumps (2), the input end of the water suction pump (2) is located between the first baffle (101) and the second baffle (102), the output end of the water suction pump (2) is connected with a water pipe (6), a coarse filter screen (104) is arranged at the top end of the second baffle (102), an upper reinforcing plate (103) is installed between the first baffle (101) and the second baffle (102), isolation plates (105) are installed on both sides of the upper reinforcing plate (103), a collecting box (13) is installed between the isolation plate (105) and the bottom support (106), a pull rope (9) is connected to the top end of the collecting box (13), the top end of the pull rope (9) extends to the outside of the intercepting device (1), and a supporting winding mechanism is arranged to collect the pull rope (9), a water inlet (1021) is arranged in the inner wall of the second baffle (102), a floating mechanism (11) is installed on the inner side of the water inlet (1021), lower floating buoys (1101) and upper floating buoys (1102) are connected to the bottom end and the top end of the floating mechanism (11) respectively, an extension plate (1104) is connected to the top end of the upper floating buoy (1102), a top rod (1105) is installed on the top end of the extension plate (1104), an insulating sealing tube (5) is installed above the floating mechanism (11) between the first baffle (101) and the second baffle (102), a detector (501) is connected to the bottom end of the insulating sealing tube (5), the detector (501) is located directly above the top rod (1105), the end of the insulating sealing tube (5) is connected with the water suction pump (2), and the detector (501) and the water suction pump (2) are connected through wires; The bottom end of the detector (501) is provided with a groove, a sliding plate (502) is movably connected in the groove, a sealing block (503) is fixed to the position close to the detector (501) of the sliding plate (502), the sealing block (503) is inserted into the groove, a limiting spring (504) is connected between the sealing block (503) and the detector (501), a plurality of plug rods (505) are connected to the end of the sealing block (503), the plug rods (505) extend to the inside of the insulating sealing tube (5) through the limiting spring (504). The water level between the first baffle (101) and the second baffle (102) is continuously rising, driving the floating mechanism (11) to move upward as a whole, at this time, the water inlet (1021) is opened, and the water inlet floating mechanism (11) is connected with the external water source, the detector (501) is squeezed by the buoyancy of the lower floating buoy (1101), the detector (501) transmits the signal to the water suction pump (2) through the wire, the water suction pump (2) runs, and the water between the first baffle (101) and the second baffle (102) is pumped out, if the water level is still rising at this time, the water level will reach the upper floating buoy (1102), the upper floating buoy (1102) also generates additional buoyancy, the buoyancy continues to increase, further squeezing the detector (501), thereby further squeezing the limit spring (504), thereby increasing the insertion distance of the insertion rod (505), the sensor detects the change of the buoyancy, and the external control device identifies and increases the power supply of the water suction pump (2), thereby increasing the pumping efficiency.

2. The cut-off device for hydraulic construction according to claim 1, characterized in that: The lower reinforcing plate (10) is arranged below the upper reinforcing plate (103) in the inside of the intercepting device (1), and the lower reinforcing plate (10) and the upper reinforcing plate (103) form a rectangular structure, and the lower reinforcing plate (10) and the upper reinforcing plate (103) are fixedly connected through bolts.

3. The cut-off device for hydraulic construction according to claim 1, characterized in that: The edge of the upper reinforcing plate (103) is connected with the middle filter screen (1031), and the middle filter screen (1031) extends to the isolation plate (105), and the isolation plate (105) is provided with a water outlet groove at the position connected with the middle filter screen (1031), and the bottom end of the middle filter screen (1031) is located above the collecting box (13).

4. The cut-off device for hydraulic construction according to claim 1, characterized in that: The outer side of the coarse filter screen (104) is provided with a triangular mesh, and the two ends of the coarse filter screen (104) are attached to the outer side of the isolation plate (105).

5. The cut-off device for hydraulic construction according to claim 1, characterized in that: The bottom end of the isolation plate (105) is provided with a groove on the side of the collecting box (13), and the groove is connected with the output end of the water suction pump (2), and the side of the collecting box (13) is connected with the fine filter screen (1301), and the fine filter screen (1301) is aligned with the groove.

6. The cut-off device for hydraulic construction according to claim 1, characterized in that: The support winding mechanism comprises a support frame (3) and a take-up frame (4), the top end of the support frame (3) is connected with a rotating wheel, the inside of the take-up frame (4) is provided with a winding wheel and a handle, and one end of the pull rope (9) is fixed in the winding wheel.

7. The cut-off device for hydraulic construction according to claim 1, characterized in that: The top end of the insulating sealing pipe (5) is connected with a fixed plate (14), and the width of the fixed plate (14) is greater than the width of the insulating sealing pipe (5), and the fixed plate (14) is fixed between the first baffle (101) and the second baffle (102).

8. The cut-off device for hydraulic construction according to claim 1, characterized in that: The river channel is internally provided with a rear cutoff device (7), which is also composed of two side sealing plates and a bottom support structure, and is internally provided with a vertical reinforcing plate (701), which is vertically arranged and is internally provided with a water sending pump (8) connected with the water pipe (6), and an output end of the water sending pump (8) is connected with a stop valve (801) and a water feeding port (802), with the stop valve (801) located in the middle of the rear cutoff device (7) and the water feeding port (802) located on the other side of the rear cutoff device (7).

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