Water conservancy project drainage device

By adopting the design of sealing members and blocking members in the water conservancy drainage device, the function of lightweight manual operation of the diversion trough and intercepting floating garbage is realized, which solves the problems of difficulty in lifting gates and large load on the intercepting garbage arms in the prior art, and improves the Operational efficiency.

CN119121862AInactive Publication Date: 2024-12-13WATER AFFAIRS BUREAU OF PINGAN DISTRICT HAIDONG CITY
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Patent Information

Application Number
CN202411401359.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2024-12-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing water conservancy drainage device is under great pressure at the gate lifting and lowering at the diversion point, which is difficult to operate manually. The staff’s arms are loaded when intercepting floating garbage, and the electric drive structure and laying circuit are cumbersome. After intercepting garbage, it is necessary to drain and increase the load. .

Method used

A water conservancy project drainage device is designed, using sealing members and barrier members to fix the first sealing plate through extrusion plate, rotating the sealing member to control the diverter slot switch, intercepting plates and mesh plates of the intercepting member intercepting the floating garbage, and pass through the net The board drains the garbage, reduces the load on the arm and avoids the electric drive structure.

Benefits of technology

It realizes a lightweight manual operation of the shunt, which reduces the demand for the electric drive structure, reduces the arm load of staff, simplifies the garbage cleaning process, and improves the operation efficiency.

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Abstract

The invention relates to the field of water conservancy projects, in particular to a water conservancy project drainage device which comprises a pier body, a second sealing plate is connected to the upper end of the pier body in an inserted mode, the lower end of the second sealing plate abuts against the lower end of the interior of the pier body, and a drainage groove is fixedly connected to one side of the pier body. Two first mounting plates are fixedly connected to the side, close to the pier body, of the upper end of the drainage groove in a front-back symmetry mode, an intercepting component is jointly mounted between the two first mounting plates, and notches are formed in the front side and the rear side of the drainage groove correspondingly. The blocking component and the blocking structure are arranged in the flow dividing groove, the extrusion plate of the blocking component abuts against the first sealing plate, the first sealing plate is fixed in the vertical state, opening and closing of the flow dividing groove are controlled by rotating the first sealing plate of the blocking component during use, the rotating direction of the first sealing plate is the same as the water flowing direction, and the borne resistance is small; manual operation is facilitated, and an electric driving structure does not need to be additionally installed.
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Description

Technical Field

[0001] The invention relates to the field of water conservancy projects, in particular to a water conservancy project drainage device. Background Art

[0002] A water conservancy drainage device is a device that controls the direction of water flow according to the needs of the user. The user can use the water conservancy drainage device to direct the water flow to other directions. The water conservancy drainage device can fully utilize the existing water resources and has certain beneficial effects on farmland irrigation, aquaculture, etc.

[0003] At present, when water conservancy projects are diverting water, they usually divert water to multiple places. At this time, a gate structure will be set at the diversion point to control the switch at the diversion point. The gate plates of the gates are mostly set vertically in the water, and the pressure they are subjected to during lifting and lowering is relatively large. It will be more difficult for the staff to manually lift and lower the gate plates. If an electric drive structure is used to drive the lifting and lowering of the gate plates, it is also necessary to lay circuits, which is more troublesome. During diversion, an interception structure will be set up in the river channel to filter the garbage floating on the water surface. After that, the staff will use salvage tools to intercept the garbage, and the water in the garbage needs to be drained when scooping it up, which puts a heavy load on the staff's arms. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a drainage device for a water conservancy project.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a water conservancy project drainage device, including a pier body, the upper end of the pier body is plugged with a second sealing plate, the lower end of the second sealing plate is against the lower end of the inner part of the pier body, one side of the pier body is fixedly connected with a drainage groove, the upper end of the drainage groove is close to the pier body. The side of the pier body is symmetrically fixedly connected with two first mounting plates, an intercepting member is commonly installed between the two first mounting plates, the front and rear sides of the drainage groove are both provided with notches, the outer side of the notches is fixedly connected with a diversion groove, the inner side of the diversion groove is close to the drainage groove. The sealing member and the blocking member are both installed on the side of the sealing member on the same side away from the drainage groove, the two sides of the diversion groove are fixedly connected with a second baffle, the outer wall of the diversion groove opposite to the second baffle is vertically inserted and slidably connected with a plug plate, the upper ends of the two plug plates on the same diversion groove are commonly fixedly connected with a card plate, and the card plate is connected to the blocking member on the same side; The intercepting member includes a first rotating shaft, the first rotating shaft is rotatably connected between the two first mounting plates, the upper end of the first rotating shaft is fixedly connected to a fixing plate, the side of the fixing plate away from the pier body is fixedly connected to a first mesh plate, the lower end of the first mesh plate is fixedly connected to a first baffle plate, the side of the fixing plate close to the pier body is fixedly connected to an intercepting plate, the lower end of the intercepting plate is fixedly connected to a second mesh plate, and a front end of the first rotating shaft is fixedly connected to a first turntable; The blocking member includes two second mounting plates symmetrically fixedly connected to the shunt slot, a main board is vertically arranged between the two second mounting plates, both sides of the main board are rotatably connected to the second mounting plate on the same side through a second rotating shaft, one end of the second rotating shaft away from the main board is fixedly connected to a second rotating disk, and the side of the second rotating disk away from the second rotating shaft is fixedly connected to four support rods distributed in an annular shape with equal intervals, one of the support rods is clamped on the shunt slot through a sleeve plate, and the lower end of the main board is fixedly connected to a first sealing plate clamped in the shunt slot; The blocking member includes an extrusion plate, which is horizontally arranged at the lower end of the interior of the diversion groove and abuts against the first sealing plate. Two connecting plates are symmetrically fixedly connected to the side of the extrusion plate away from the first sealing plate. The two connecting plates are rotatably connected to the interior of the diversion groove through the same rotating rod. The upper ends of the two connecting plates are vertically fixedly connected to a vertical plate on one side away from the first sealing plate. The upper ends of the two vertical plates are commonly fixedly connected to a horizontal plate, and the clamping plate is clamped on the horizontal plate.

[0006] Specifically, a first support plate is fixedly connected to one side of the first turntable, and the first support plate is a hollow structure. An insertion rod passes through and is slidably connected to the first support plate. The back end of the insertion rod is inserted into the first mounting plate on the same side, and a slip ring is sleeved on the outside of the back end of the insertion rod and fixedly connected. The slip ring is slidably connected to the inside of the first support plate, and a pull head is fixedly connected to the front end of the insertion rod.

[0007] Specifically, a balance plate is fixedly connected to the upper end of the main board, the balance plate and the first closing plate are located on the same center line, and the weight of the balance plate is the same as the weight of the first closing plate.

[0008] Specifically, the front and rear sides of the first mesh plate and the intercepting plate are both against the side inner wall of the drainage groove, the first mesh plate and the intercepting plate are symmetrically arranged, and the lower end of the first mesh plate is lower than the upper end of the intercepting plate.

[0009] Specifically, a rotating plate is fixedly connected between the two vertical plates and the connecting plate on the same side. The rotating plate has an arc-shaped structure and is located on the same center line as the rotating rod. A plurality of second supporting plates are fixedly connected to the circumferential outer wall of the rotating plate at equal intervals.

[0010] Specifically, the upper end of the transverse plate is in an arc-shaped structure, the distance between the two sides of the transverse plate is the same as the distance between the two sides of the extrusion plate, and a plurality of through holes are formed on the transverse plate at equal intervals.

[0011] Specifically, a stopper is fixedly connected to the lower end of the plug plate on one side away from the diverter slot, and the stopper is located directly below the second stopper on the same side.

[0012] Specifically, the main board and the second rotating shaft are located on the same center line, the lower ends of both sides of the main board and both sides of the first sealing plate are against the side inner walls of the diverter groove, and the lower end of the first sealing plate is an arc-shaped structure and is against the lower inner wall of the diverter groove.

[0013] Beneficial effects of the present invention: (1) The present invention provides a blocking member and a blocking structure in the diversion slot, and uses the extrusion plate of the blocking member to press against the first sealing plate to fix the first sealing plate in a vertical state. When in use, the switch of the diversion slot is controlled by rotating the first sealing plate of the blocking member. The direction of rotation of the first sealing plate is the same as the direction of water flow, and the resistance encountered is small, which is convenient for manual operation and does not require the installation of an electric drive structure.

[0014] (2) The present invention installs an intercepting member on the drainage trough, and the lower end of the intercepting plate of the intercepting member and the second mesh plate are inserted into the water. When the water flows through the intercepting plate and the second mesh plate, the garbage floating on the water surface will be intercepted by the intercepting plate and the second mesh plate. When cleaning, the staff can push the garbage onto the first mesh plate, drain the water in the garbage through the first mesh plate, and then push the garbage off the first mesh plate, which can reduce the load on the staff's arms. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 A schematic diagram of the structure provided by the present invention; Figure 2 A cutaway diagram provided for the present invention; Figure 3 A cross-sectional view of a first support plate provided by the present invention; Figure 4 A cutaway view of a blocking member provided by the present invention; Figure 5 A schematic diagram of the structure of the blocking component and the blocking component when the diverter slot provided by the present invention is closed; Figure 6 A schematic diagram of the structure of the blocking member provided by the present invention; Figure 7 A schematic diagram of the installation structure of the plug board and the clamping board provided by the present invention on the diversion trough; Figure 8A schematic diagram of the structure of the blocking component and the blocking component when the diverter slot provided by the present invention is opened; Fig. 9 This is a schematic structural diagram of the blocking component and the blocking component when the diverter slot provided by the present invention is opened.

[0017] In the figure: 1, pier body; 2, drainage groove; 3, first mounting plate; 4, interception member; 41, first rotating shaft; 42, fixing plate; 43, first mesh plate; 44, first baffle plate; 45, interception plate; 46, second mesh plate; 47, first rotating disk; 48, first support plate; 49, plugging rod; 410, slip ring; 411, pull head; 5, notch; 6, diversion groove; 7, blocking member; 71, second mounting plate; 7 2. Main board; 73. Second rotating shaft; 74. Balance plate; 75. First closing plate; 76. Second rotating disk; 77. Support rod; 78. Sleeve plate; 8. Blocking member; 81. Extrusion plate; 82. Connecting plate; 83. Rotating rod; 84. Vertical plate; 85. Horizontal plate; 86. Through hole; 87. Rotating plate; 88. Second supporting plate; 9. Second baffle plate; 10. Insert plate; 11. Stopper; 12. Card plate; 13. Second closing plate. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 9 As shown, a water conservancy engineering drainage device described in the present invention includes a pier body 1, a second sealing plate 13 is inserted into the upper end of the pier body 1, and the lower end of the second sealing plate 13 is against the lower end of the inner part of the pier body 1. A drainage groove 2 is fixedly connected to one side of the pier body 1, and two first mounting plates 3 are fixedly connected to the upper end of the drainage groove 2 near the pier body 1 symmetrically in front and back, and an intercepting member 4 is installed between the two first mounting plates 3. Notches 5 are opened on the front and rear sides of the drainage groove 2, and the outer sides of the notches 5 are fixedly connected to the diversion groove 6, and the inner side of the diversion groove 6 near the drainage groove 2 is installed There are a plugging member 7 and a blocking member 8, the blocking members 8 are all located on the side of the plugging member 7 on the same side away from the drainage groove 2, the second baffles 9 are fixedly connected to both sides of the diverter groove 6, and the second baffles 9 are vertically inserted and slidably connected to the outer wall of the diverter groove 6. The lower end of the plug plate 10 away from the diverter groove 6 is fixedly connected to a block 11, and the block 11 is located directly below the second baffle 9 on the same side. A card plate 12 is fixedly connected between the upper ends of the two plug plates 10 on the same diverter groove 6, and the card plates 12 are connected to the blocking member 8 on the same side; The interception member 4 includes a first rotating shaft 41, which is rotatably connected between the two first mounting plates 3, a fixed plate 42 is fixedly connected to the upper end of the first rotating shaft 41, a first mesh plate 43 is fixedly connected to the side of the fixed plate 42 away from the pier body 1, a first baffle plate 44 is fixedly connected to the lower end of the first mesh plate 43, an interception plate 45 is fixedly connected to the side of the fixed plate 42 close to the pier body 1, a second mesh plate 46 is fixedly connected to the lower end of the interception plate 45, and a first rotating disk 47 is fixedly connected to one end of the front side of the first rotating shaft 41; The blocking member 7 includes two second mounting plates 71 symmetrically fixedly connected to the shunt slot 6, a main plate 72 is vertically arranged between the two second mounting plates 71, both sides of the main plate 72 are rotatably connected to the second mounting plates 71 on the same side through second rotating shafts 73, one end of the second rotating shaft 73 away from the main plate 72 is fixedly connected to a second rotating disk 76, and one side of the second rotating disk 76 away from the second rotating shaft 73 is fixedly connected to four support rods 77 distributed in an annular shape with equal spacing, one of the support rods 77 is clamped on the shunt slot 6 through a sleeve plate 78, and the lower end of the main plate 72 is fixedly connected to a first sealing plate 75 clamped in the shunt slot 6; The blocking member 8 includes an extrusion plate 81, which is laterally arranged at the lower end of the interior of the diverter slot 6 and rests against the first sealing plate 75. The extrusion plate 81 is symmetrically fixedly connected to two connecting plates 82 on the side away from the first sealing plate 75. The two connecting plates 82 are rotatably connected to the interior of the diverter slot 6 through the same rotating rod 83. The upper ends of the two connecting plates 82 are vertically fixedly connected to a vertical plate 84 on the side away from the first sealing plate 75. The upper ends of the two vertical plates 84 are commonly fixedly connected to a horizontal plate 85. The clamping plate 12 is clamped on the horizontal plate 85. A rotating plate 87 is commonly fixedly connected between the two vertical plates 84 and the connecting plates 82 on the same side. The rotating plate 87 has an arc-shaped structure and is located on the same center line as the rotating rod 83. A number of second support plates 88 are fixedly connected to the circumferential outer wall of the rotating plate 87 at equal intervals.

[0020] Specifically, the front and rear sides of the first mesh plate 43 and the interception plate 45 are both against the side inner wall of the drainage trough 2, and the first mesh plate 43 and the interception plate 45 are symmetrically arranged. The lower end of the first mesh plate 43 is lower than the upper end of the interception plate 45. When cleaning, garbage can be piled above the water surface, which is convenient for draining the garbage.

[0021] Specifically, the upper end of the horizontal plate 85 is in an arc-shaped structure, the distance between the two sides of the horizontal plate 85 is the same as the distance between the two sides of the extrusion plate 81, and a number of through holes 86 are evenly spaced on the horizontal plate 85 to ensure that the resistance of the water flow to the horizontal plate 85 is reduced when the horizontal plate 85 rotates.

[0022] Specifically, the main board 72 and the second rotating shaft 73 are located on the same center line, and the lower ends of both sides of the main board 72 and the two sides of the first sealing plate 75 are both against the side inner walls of the diverter groove 6. The lower end of the first sealing plate 75 is an arc-shaped structure and is against the lower inner wall of the diverter groove 6, which facilitates the rotation of the main board 72 in the diverter groove 6, and can cooperate with the first sealing plate 75 to seal the diverter groove 6.

[0023] Specifically, a first support plate 48 is fixedly connected to one side of the first turntable 47. The first support plate 48 is a hollow structure. An insertion rod 49 passes through and is slidably connected to the first support plate 48. The back end of the insertion rod 49 is inserted into the first mounting plate 3 on the same side. A slip ring 410 is sleeved on the outside of the back end of the insertion rod 49 and is fixedly connected. The slip ring 410 is slidably connected to the inside of the first support plate 48. A pull head 411 is fixedly connected to the front end of the insertion rod 49 to facilitate the rotation of the first turntable 47 and fix the position of the first turntable 47.

[0024] Specifically, a balance plate 74 is fixedly connected to the upper end of the main board 72. The balance plate 74 and the first sealing plate 75 are located on the same center line. The weight of the balance plate 74 is the same as the weight of the first sealing plate 75, which can ensure the balance of the main board 72 when the diversion slot 6 is opened.

[0025] When in use, the second sealing plate 13 is lifted, and the water flows through the pier body 1 to the drainage groove 2. When the water flows through the interception plate 45 and the second mesh plate 46, the garbage floating on the water surface will be intercepted by the interception plate 45 and the second mesh plate 46. When it is necessary to open the diversion groove 6 for diversion, pull up the card plate 12, pull the card plate 12 off the horizontal plate 85, grab the second support plate 88, rotate the extrusion plate 81, rotate the extrusion plate 81 from the horizontal state to the vertical state, lower the card plate 12, and clamp the card plate 12 on the extrusion plate 81 , fix the position of the extrusion plate 81 at this time, then pull off the sleeve plate 78, the first sealing plate 75 rotates in the direction close to the rotating rod 83 under the impact of the water flow, opens the diverter slot 6, starts to drain, and then rotates the second rotating disk 76 through the support rod 77 to drive the first sealing plate 75 to rotate, rotate the first sealing plate 75 to a horizontal state, and is located on the side of the main board 72 away from the extrusion plate 81, completely opens the diverter slot 6, and does not hinder the rotation of the extrusion plate 81 when closing the diverter slot 6, and then the sleeve plate 78 is put on the second rotating disk 76 The upper part is now located on the support rod 77 below, fixing the position of the first sealing plate 75 at this time, and the direction of rotation of the first sealing plate 75 is the same as the flow direction of water in the diverter slot 6. When closing the diverter slot 6, first rotate the extrusion plate 81 in the opposite direction until the extrusion plate 81 abuts against the inner lower end of the diverter slot 6, and clamp the clamping plate 12 on the cross plate 85 to fix the position of the extrusion plate 81, and then rotate the first sealing plate 75 until the first sealing plate 75 abuts against the extrusion plate 81. At this time, the first sealing plate 75 seals the diverter slot 6. When the diversion trough 6 is opened again, the above operation can be repeated. When cleaning the garbage intercepted by the interception plate 45 and the second mesh plate 46, use a tool to push the garbage onto the first mesh plate 43. When the garbage accumulates on the first mesh plate 43, most of the water in the garbage will fall back into the drainage trough 2 for drainage. Then the staff can pull the plug 49 out of the first mounting plate 3 through the pull head 411, and rotate the first rotating shaft 41 counterclockwise to lift the first mesh plate 43 and push the garbage off the first mesh plate 43.

[0026] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water conservancy project drainage device, comprising a pier body (1), characterized in that: The upper end of the pier body (1) is plugged with a second sealing plate (13), the lower end of the second sealing plate (13) abuts against the lower end of the inner part of the pier body (1), one side of the pier body (1) is fixedly connected with a drainage groove (2), the upper end of the drainage groove (2) close to the side of the pier body (1) is symmetrically fixedly connected with two first mounting plates (3) in the front and rear directions, an intercepting member (4) is installed between the two first mounting plates (3), the front and rear sides of the drainage groove (2) are both provided with notches (5), the outer sides of the notches (5) are fixedly connected with a diversion groove (6), the inner side of the diversion groove (6) is A plugging component (7) and a blocking component (8) are installed on the side close to the drainage groove (2), and the blocking components (8) are located on the side of the plugging component (7) on the same side away from the drainage groove (2). Second baffles (9) are fixedly connected to both sides of the diverter groove (6), and plug plates (10) are vertically inserted and slidably connected in the outer wall of the diverter groove (6) opposite to the second baffle (9). A clamping plate (12) is fixedly connected between the upper ends of the two plugging plates (10) on the same diverter groove (6), and the clamping plates (12) are connected to the blocking components (8) on the same side; The intercepting member (4) comprises a first rotating shaft (41), the first rotating shaft (41) being rotatably connected between the two first mounting plates (3), the upper end of the first rotating shaft (41) being fixedly connected to a fixing plate (42), the side of the fixing plate (42) away from the pier body (1) being fixedly connected to a first mesh plate (43), the lower end of the first mesh plate (43) being fixedly connected to a first baffle plate (44), the side of the fixing plate (42) close to the pier body (1) being fixedly connected to an intercepting plate (45), the lower end of the intercepting plate (45) being fixedly connected to a second mesh plate (46), and a front end of the first rotating shaft (41) being fixedly connected to a first rotating disk (47); The blocking member (7) comprises two second mounting plates (71) symmetrically fixedly connected to the shunt groove (6); a main plate (72) is vertically arranged between the two second mounting plates (71); both sides of the main plate (72) are rotatably connected to the second mounting plate (71) on the same side via second rotating shafts (73); a second rotating disk (76) is fixedly connected to one end of the second rotating shaft (73) away from the main plate (72); four support rods (77) distributed in an annular shape and at equal intervals are fixedly connected to one side of the second rotating shaft (73); one of the support rods (77) is clamped to the shunt groove (6) via a sleeve plate (78); and a first sealing plate (75) is fixedly connected to the lower end of the main plate (72) and clamped in the shunt groove (6); The blocking member (8) comprises an extrusion plate (81), the extrusion plate (81) being arranged transversely at the lower end of the interior of the diverter trough (6) and abutting against the first sealing plate (75), the extrusion plate (81) being symmetrically fixedly connected to two connecting plates (82) on one side away from the first sealing plate (75), the two connecting plates (82) being rotatably connected to the interior of the diverter trough (6) via a common rotating rod (83), the upper ends of the two connecting plates (82) being vertically fixedly connected to a vertical plate (84) on one side away from the first sealing plate (75), the upper ends of the two vertical plates (84) being commonly fixedly connected to a horizontal plate (85), and the clamping plate (12) being clamped on the horizontal plate (85).

2. A water conservancy engineering drainage device according to claim 1, characterized in that: A first support plate (48) is fixedly connected to one side of the first rotating disk (47); the first support plate (48) is a hollow structure; an insertion rod (49) passes through and is slidably connected to the first support plate (48); a back end of the insertion rod (49) is inserted into the first mounting plate (3) on the same side; a slip ring (410) is sleeved on the outer side of the back end of the insertion rod (49) and is fixedly connected; the slip ring (410) is slidably connected to the inside of the first support plate (48); and a pull head (411) is fixedly connected to the front end of the insertion rod (49).

3. A water conservancy engineering drainage device according to claim 1, characterized in that: A balancing plate (74) is fixedly connected to the upper end of the main board (72); the balancing plate (74) and the first sealing plate (75) are located on the same center line; and the weight of the balancing plate (74) is the same as that of the first sealing plate (75).

4. A water conservancy engineering drainage device according to claim 1, characterized in that: The front and rear sides of the first mesh plate (43) and the intercepting plate (45) are both against the inner side wall of the drainage groove (2); the first mesh plate (43) and the intercepting plate (45) are symmetrically arranged; the lower end of the first mesh plate (43) is lower than the upper end of the intercepting plate (45).

5. A water conservancy engineering drainage device according to claim 1, characterized in that: A rotating plate (87) is fixedly connected between the two vertical plates (84) and the connecting plate (82) on the same side. The rotating plate (87) is in an arc-shaped structure and is located on the same center line as the rotating rod (83). A plurality of second supporting plates (88) are fixedly connected at equal intervals on the circumferential outer wall of the rotating plate (87).

6. A water conservancy engineering drainage device according to claim 1, characterized in that: The upper end of the transverse plate (85) is in an arc-shaped structure, the distance between two sides of the transverse plate (85) is the same as the distance between two sides of the extrusion plate (81), and a plurality of through holes (86) are formed on the transverse plate (85) at equal intervals.

7. A water conservancy engineering drainage device according to claim 1, characterized in that: A stopper (11) is fixedly connected to the lower end of the plug plate (10) on the side away from the diversion slot (6), and the stopper (11) is located directly below the second stopper (9) on the same side.

8. A water conservancy engineering drainage device according to claim 1, characterized in that: The main board (72) and the second rotating shaft (73) are located on the same center line, the lower ends of both sides of the main board (72) and both sides of the first sealing plate (75) abut against the inner side walls of the diverter groove (6), and the lower end of the first sealing plate (75) is in an arc-shaped structure and abuts against the inner side wall of the lower end of the diverter groove (6).

Citation Information

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