Water conservancy construction drainage device

CN224647793UActive Publication Date: 2026-08-18COMPREHENSIVE SUPPORT CENTER OF KULUN BANNER WATER AFFAIRS BUREAU
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Patent Information

Application Number
CN202522101824.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-18
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

[0003]传统水利工程施工排水装置依赖单一抽水泵直接抽取积水,水体未经充分过滤便进入泵体,依靠泵体动力将水输送至排放区域,以此完成排水作业,这种装置运行时能因水体中杂质进入泵体造成堵塞,且缺乏针对性固定结构导致泵体在振动下产生移位,同时对不同工况的适配性差,难以满足复杂施工场景需求

Benefits of technology

1、本实用新型中,升降杆沿升降筒滑动调高度,固定螺栓穿定位孔配合碟形螺母锁定,使进水口与基坑底面平齐保障积水汇入,积水从多进水口入集水斗,过滤组件拦截杂质,压条固定过滤网,螺丝防压条松动,过滤后水经导流罩引导入排水管经连接管进输入管,清淤法兰可拆清淤,提高汇水效率,实现能够应对短时强降雨引发的突发积水情况。

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Abstract

The utility model relates to water conservancy engineering technical field discloses a water conservancy engineering construction drainage device, including water pump, the input of water pump is connected with the input pipe, the bottom of input pipe is provided with the water collecting mechanism, the bottom of water pump is provided with fixed mechanism, the water collecting mechanism includes the connecting pipe, the connecting pipe is communicated with input pipe, the outer wall fixed connection of input pipe has the dredging flange, the inner wall fixed connection of dredging flan is provided with the drain pipe, the left end of drain pipe is connected with the water collecting bucket, the inner wall fixed connection of water collecting bucket has the fairing, the outer wall of water collecting bucket is provided with a plurality of water inlets. In the utility model, the height is adjusted to the lifting rod sliding, the fixed bolt passes through the positioning hole and is locked, the water from the water inlet into the water collecting bucket, the water into the input pipe after the filtration component intercepts the impurity, the dredging flange can dismantle dredging, improve the water collection efficiency, realize the burst waterlogging situation caused by short time heavy rainfall.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a drainage device for water conservancy engineering construction. Background Technology

[0002] Water conservancy project construction drainage devices are specialized equipment systems used to remove accumulated water, wastewater, and rainwater from the construction area during the construction of water conservancy projects. They are key auxiliary facilities to ensure the smooth progress of the project. Water accumulation in the construction area due to rainfall, groundwater seepage, and construction water use will lead to muddy work surfaces and reduced foundation bearing capacity if not drained in time, and may even cause foundation pit collapse and damage to concrete pouring quality. Therefore, the device must have the core capabilities of efficient drainage and stable operation to create a dry and safe working environment for construction and ensure the construction progress and quality of water conservancy projects.

[0003] Traditional water conservancy construction drainage devices rely on a single water pump to directly extract accumulated water. The water enters the pump body without sufficient filtration, and the pump body's power is used to transport the water to the discharge area to complete the drainage operation. When this device is in operation, it can be blocked by impurities in the water entering the pump body, and the lack of a targeted fixing structure can cause the pump body to shift under vibration. At the same time, it has poor adaptability to different working conditions and is difficult to meet the needs of complex construction scenarios.

[0004] Existing drainage devices for water conservancy construction use a single-layer fixed filter screen structure to remove large particulate impurities from the water, avoiding frequent shutdowns for cleaning due to impurities directly entering the pump body. However, existing devices still have significant shortcomings, such as low water collection efficiency, a single inlet design for water collection, a small coverage area for each device resulting in a water collection blind zone, and vertical inlet opening causing water flow impact to generate eddies, reducing water flow velocity and making it difficult to cope with sudden water accumulation caused by short-term heavy rainfall. Therefore, a new drainage device for water conservancy construction is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drainage device for water conservancy engineering construction, which is designed to address the problem of sudden water accumulation caused by short-term heavy rainfall.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drainage device for water conservancy engineering construction, including a water pump, an input pipe connected to the input end of the water pump, a water collection mechanism provided at the bottom end of the input pipe, and a fixing mechanism provided at the bottom of the water pump. The water collection mechanism includes a connecting pipe that communicates with an input pipe. A sludge-removing flange is fixedly connected to the outer wall of the input pipe, and a drain pipe is fixedly connected to the inner wall of the sludge-removing flange. The left end of the drain pipe is connected to a water collection hopper, and a flow guide is fixedly connected to the inner wall of the water collection hopper. Multiple water inlets are provided on the outer wall of the water collection hopper, and filter components are provided on the inner walls of the multiple water inlets. A lifting base is fixedly connected to the bottom of the water collection hopper, and multiple lifting components are provided at the bottom of the lifting base.

[0007] As a further description of the above technical solution: The fixing mechanism includes a load-bearing base, the inner wall of which is slidably connected to the bottom of the water pump. The top of the load-bearing base has two mounting slots, and the inner walls of the two mounting slots are fixedly connected to two gaskets. The four corners of the load-bearing base are threaded with helical claws. The top of the load-bearing base is fixedly connected to two handling handles. The outer wall of the load-bearing base is provided with positioning components.

[0008] As a further description of the above technical solution: The filter assembly includes two pressure strips, the outer walls of which are slidably connected to the inner wall of the water inlet, the same filter screen is fixedly connected to the outer walls of both pressure strips, and screws are threaded onto the outer walls of both pressure strips.

[0009] As a further description of the above technical solution: The lifting assembly includes a lifting rod, the top end of which is fixedly connected to the bottom of the lifting base. A fixing bolt is threaded onto the inner wall of the lifting rod, and a disc nut is threaded onto the outer wall of the fixing bolt. Multiple positioning holes are provided on the outer wall of the lifting rod, and a lifting cylinder is slidably connected to the outer wall of the lifting rod.

[0010] As a further description of the above technical solution: The positioning component includes a central guide post, the top of which is fixedly connected to the bottom of the load-bearing base, and a level is fixedly connected to the outer wall of the load-bearing base.

[0011] As a further description of the above technical solution: The output end of the water pump is fixedly connected to an output pipe, and the outer wall of the output pipe is fixedly connected to a connecting flange.

[0012] As a further description of the above technical solution: The inner wall of the connecting flange is threaded with a fastening bolt, and the outer wall of the fastening bolt is threaded with a fastening nut.

[0013] As a further description of the above technical solution: The outer wall of the input pipe is fixedly connected to a connecting flange, and the outer wall of the water pump is threadedly connected to multiple fastening bolts.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the lifting rod slides along the lifting cylinder to adjust the height, and the fixing bolt passes through the positioning hole and locks with the disc nut to make the water inlet flush with the bottom of the foundation pit to ensure that the accumulated water flows in. The accumulated water enters the water collection hopper from multiple water inlets, the filter assembly intercepts impurities, the pressure strip fixes the filter screen, and the screw prevents the pressure strip from loosening. After filtration, the water is guided into the drain pipe through the guide cover and into the input pipe through the connecting pipe. The sludge removal flange can be removed for sludge removal, which improves the water collection efficiency and enables the system to cope with sudden water accumulation caused by short-term heavy rainfall.

[0015] 2. In this utility model, during installation, the central guide column is inserted into the soil to initially position the load-bearing base, preventing lateral displacement. The operator observes the level and rotates the four corner helical claws to adjust the insertion depth until the bubble is centered, ensuring the base is level and providing a stable foundation for the water pump. The water pump slides onto the mounting groove, where gaskets buffer and fill gaps. Fastening bolts are then screwed into the groove through the pump body and gaskets to secure the pump body firmly. During operation, the helical claws engage with the soil to resist vibration, thrust, and pull-out forces, and the handle facilitates relocation, achieving stable fixation. Attached Figure Description

[0016] Figure 1 This is a perspective view of a drainage device for water conservancy engineering construction proposed in this utility model. Figure 2 This is a front view of a drainage device for water conservancy engineering construction proposed in this utility model; Figure 3 This is a schematic diagram of the water collection mechanism of a drainage device for water conservancy engineering construction proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the fixing mechanism of a drainage device for water conservancy construction proposed in this utility model; Figure 6 This is a schematic diagram of the structure of the telescopic component of a drainage device for water conservancy engineering construction proposed in this utility model. In the diagram: 1. Water pump; 2. Fastening bolt; 3. Fastening nut; 4. Inlet pipe; 5. Water collection mechanism; 501. Connecting pipe; 502. Dredging flange; 503. Drain pipe; 504. Flow guide; 505. Water collection hopper; 506. Inlet; 507. Filter assembly; 5071. Filter screen; 5072. Pressure strip; 5073. Screw; 508. Lifting base; 509. Lifting assembly; 5091. Lifting rod; 5092. Fixing bolt; 5093. Disc nut; 5094. Positioning hole; 5095. Lifting cylinder; 6. Fixing mechanism; 601. Load-bearing base; 602. Mounting groove; 603. Gasket; 604. Spiral toothed claw; 605. Handle; 606. Positioning assembly; 6061. Central guide column; 6062. Level; 7. Outlet pipe; 8. Connecting flange. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-6 An embodiment of this utility model is provided: a drainage device for water conservancy construction, including a water pump 1, which is the core power component. The input end of the water pump 1 is connected to an input pipe 4, which serves as a channel for water transportation. A water collection mechanism 5 is provided at the bottom of the input pipe 4, which can stably transport the filtered water collected by the water collection hopper 505 to the input pipe 4. A fixing mechanism 6 is provided at the bottom of the water pump 1, which provides a stable installation foundation for the water pump 1. The water collection mechanism 5 includes a connecting pipe 501, which is used to connect the input pipe 4 and the drain pipe 503. The connecting pipe 501 is connected to the input pipe 4. A sludge removal flange 502 is fixedly connected to the outer wall of the input pipe 4. The sludge removal flange 502 can be removed for high-pressure flushing. A drain pipe 503 is fixedly connected to the inner wall of the sludge removal flange 502. The drain pipe 503 provides space for drainage. The left end of the drain pipe 503 is connected to a water collection hopper 505. The water collection hopper 505 can use gravity to accelerate the water collection. A flow guide hood 504 is fixedly connected to the inner wall of the water collection hopper 505. The flow guide hood 504 can block the drain pipe 503. Multiple water inlets 506 are opened on the outer wall of the water collection hopper 505. The water inlets 506 can simultaneously expand the water collection range. A filter assembly 507 is provided on the inner wall of each of the multiple water inlets 506. The filter assembly 507 is used to intercept impurities in the water. A lifting base 508 is fixedly connected to the bottom of the water collection hopper 505. The filter assembly 507 includes two pressure strips 5072, which press and fix the filter screen 5071 to the inlet 506. The outer walls of the two pressure strips 5072 are slidably connected to the inner wall of the inlet 506. The same filter screen 5071 is fixedly connected to the outer walls of the two pressure strips 5072. The filter screen 5071 intercepts impurities. Screws 5073 are threadedly connected to the outer walls of the two pressure strips 5072, which can fix the pressure strips 5072. The top end of the lifting rod 5091 is fixedly connected to the bottom of the lifting base 508, which provides a mounting carrier for the lifting assembly 509. Multiple lifting assemblies 509 are provided at the bottom of the lifting base 508. Component 509 includes a lifting rod 5091, which supports and adjusts the height. A fixing bolt 5092 is threadedly connected to the inner wall of the lifting rod 5091 to fix the telescopic length of the lifting rod 5091. A disc nut 5093 is threadedly connected to the outer wall of the fixing bolt 5092 to prevent the fixing bolt 5092 from loosening. Multiple positioning holes 5094 are provided on the outer wall of the lifting rod 5091. The fixing bolt 5092 cooperates with different positioning holes 5094 to achieve different height adjustments. A lifting cylinder 5095 is slidably connected to the outer wall of the lifting rod 5091 to provide stable support for the lifting rod 5091. Specifically, the lifting base 508 serves as the connecting carrier between the water collection hopper 505 and the lifting assembly 509. It is first firmly connected to the bottom of the water collection hopper 505 by welding to ensure that the weight of the water collection hopper 505 is evenly transferred to multiple lifting assemblies 509. During installation, the lifting cylinders 5095 of the lifting assembly 509 are placed one by one at the preset support points. The bottom of the lifting cylinder 5095 is in close contact with the ground, providing stable bottom support for the entire water collection mechanism 5. According to the flatness of the pit bottom, the operator adjusts the extension length of the lifting rod 5091 in the lifting cylinder 5095 so that the upper opening of the water collection hopper 505 is flush with the bottom of the pit, ensuring that the accumulated water can flow naturally into the inlet 506. After the height is adjusted to the correct position, pass the fixing bolt 5092 through the positioning hole 5094 of the lifting rod 5091 and the corresponding hole of the lifting cylinder 5095, then tighten the disc nut 5093. The self-locking property of the disc nut 5093 prevents the fixing bolt 5092 from loosening due to water flow impact or construction vibration, ensuring the height stability of the water collection hopper 505. Then, insert the two pressure strips 5072 into the grooves on the inner wall of the water inlet 506, and at the same time, lay the filter screen 5071 flat on the inner side of the water inlet 506. Use a tool to screw screw 5073 into the threaded holes on the wall of pressure strip 5072 and inlet 506 to prevent water flow impact from causing filter screen 5071 to shift or fall off. Connect one end of connecting pipe 501 to inlet pipe 4, and the other end to drain pipe 503 through cleaning flange 502. Install a sealing gasket between the flanges of cleaning flange 502, and tighten the flange bolts to ensure a seal at the connection. The left end of drain pipe 503 is connected to water collection hopper 505. The guide shroud 504 on the inner wall of water collection hopper 505 faces the drain. The water pipe 503 interface forms a smooth water flow channel. During drainage operations, the accumulated water in the foundation pit simultaneously flows into the water collection hopper 505 from multiple water inlets 506. The layout of multiple water inlets 506 expands the water collection range and avoids the formation of water collection blind spots. When the water flows through the filter screen 5071, impurities are intercepted on the outside of the screen surface. The filtered clean water enters the water collection hopper 505 and, guided by the flow guide hood 504, converges towards the drain pipe 503, increasing the water collection speed. The water then flows through the drain pipe 503 and the sludge removal flange 502. The water enters the inlet pipe 4 through the connecting pipe 501, and is then pressurized by the water pump 1 and discharged through the outlet pipe 7. If the filter screen 5071 is clogged, simply unscrew the screw 5073 and remove the pressure strip 5072 to remove the filter screen 5071 for cleaning or replacement. The operation is simple and does not affect the operation of the overall drainage system. If silt accumulates in the drain pipe 503 or the connecting pipe 501, remove the bolts of the cleaning flange 502, separate the flange, and then perform high-pressure flushing and cleaning. This effectively meets the drainage needs of complex construction scenarios.

[0019] Reference Figures 1-5The fixing mechanism 6 includes a load-bearing base 601, which provides an installation carrier for the water pump (1). The inner wall of the load-bearing base 601 is slidably connected to the bottom of the water pump 1. Two mounting slots 602 are opened on the top of the load-bearing base 601, which provide space for the gaskets 603 and the mounting bolts of the water pump 1. Two gaskets 603 are fixedly connected to the inner walls of the two mounting slots 602. The gaskets 603 can absorb the slight vibration generated by the operation of the water pump 1 and prevent the bolts from loosening due to vibration. The four corners of the load-bearing base 601 are threaded with helical teeth 604, which can resist the vertical movement of the water pump 1 during operation. Pulling force and horizontal thrust are used to prevent the equipment from shifting or overturning. The top of the load-bearing base 601 is fixedly connected to two handling handles 605, which provide force points for the overall handling of the water pump 1. The outer wall of the load-bearing base 601 is provided with a positioning component 606. The positioning component 606 is used to ensure the positional accuracy and level of the load-bearing base 601 during installation. The positioning component 606 includes a central guide column 6061, which provides precise positioning for installation. The top of the central guide column 6061 is fixedly connected to the bottom of the load-bearing base 601. The outer wall of the load-bearing base 601 is fixedly connected to a level 6062, which can intuitively display the level of the base. Specifically, the load-bearing base 601 is placed in the preset installation position. The operator adjusts the base's orientation by moving the handle 605, aligning the central guide post 6061 at the bottom of the load-bearing base 601 with the ground mark and inserting it to initially position the base. Then, the operator observes the level 6062 on the outer wall of the load-bearing base 601, rotating the helical claws 604 at the four corners until they are screwed into the soil. By adjusting the screwing depth of each claw, the bubble in the level 6062 is centered, ensuring the load-bearing base 601 is level. The bottom of the water pump 1 is then slid along the inner wall of the load-bearing base 601 directly above the mounting groove 602, ensuring the bottom of the pump body... Align the mounting hole with the mounting groove 602, and fill the tiny gap between the pump body and the base with the gasket 603. Take multiple fastening bolts 2, pass them through the mounting hole and gasket 603 of the water pump 1, screw them into the threaded holes on the inner wall of the mounting groove 602 and tighten them. The axial pressure of the fastening bolts 2 will firmly fix the water pump 1 on the load-bearing base 601 to prevent the pump body from shifting during operation. When the water pump 1 starts running during drainage operation, it will generate vibration. The fastening bolts 2 on the load-bearing base 601 will firmly lock the pump body through the gasket 603. The interlocking action of the helical claw 604 with the soil will resist the horizontal and vertical forces generated by the vibration, prevent the pump body from shifting due to vibration during operation, and achieve stable drainage.

[0020] Reference Figures 1-2The output end of the water pump 1 is fixedly connected to the output pipe 7, which is mainly used to transport the water discharged by the water pump 1 to the designated discharge area. The outer wall of the output pipe 7 is fixedly connected to the connecting flange 8, which is used to enable the output pipe 7 to be detachably connected to the external pipeline. The inner wall of the connecting flange 8 is threaded with a fastening bolt 2, which is used to fix the connecting flange 8. The outer wall of the fastening bolt 2 is threaded with a fastening nut 3, which is used to lock and fix the fastening bolt 2 after it penetrates the flange. The outer wall of the input pipe 4 is fixedly connected to the connecting flange 8, which is used to connect the input pipe 4 to the input end of the water pump 1. The outer wall of the water pump 1 is threaded with multiple fastening bolts 2, which are used to tightly connect the water pump 1 to the load-bearing base 601. Specifically, the output pipe 7 transports the water discharged from the pump 1 to the designated discharge area, serving as the core transport channel after water pressurization. The smooth inner wall of the output pipe 7 reduces water flow resistance. The connecting flange 8 enables a detachable connection between the output pipe 7 and external pipelines, allowing for flexible docking of pipelines of different lengths. The inner wall of the connecting flange 8 is threaded with fastening bolts 2, which penetrate the flange and are then locked in place to prevent loosening in a vibrating environment and ensure a long-term seal for the flange connection. The connecting flange 8 connects the input pipe 4 to the pump. 1. At the input end, the input pipe 4 stably delivers the filtered water to the water pump 1 through this connection, providing a continuous water source for the pump body to pump water. The outer wall of the water pump 1 is threaded with multiple fastening bolts 2, which tightly connect the water pump 1 to the support base 601. The bolts pass through the pump body mounting hole and mate with the mounting groove 602 of the support base 601. Through the axial pressure of the fastening bolts 2, the water pump 1 is firmly connected to the support base 601. With the cooperation of the spiral toothed claw 604 of the base, the displacement of the water pump 1 caused by vibration during operation is prevented.

[0021] Working principle: The lifting assembly 509 provides a height-adaptive base for the water collection hopper 505. The lifting rod 5091 slides along the lifting cylinder 5095 to adjust the height. The fixing bolt 5092 passes through the positioning hole 5094 and locks the position with the disc nut 5093, so that the water inlet 506 is flush with the bottom of the pit, ensuring that the accumulated water flows in. During drainage operation, the water pump 1 generates negative pressure, and the accumulated water enters the water collection hopper 505 from multiple water inlets 506. The filter assembly 507 plays an interception role. The pressure bar 5072 fixes the filter screen 5071 to the inner wall of the water inlet 506. Impurities are blocked by the filter screen 5071. The screw 5073 ensures that the pressure bar 5072 does not loosen. After filtration, the water is guided by the guide hood 504 to converge into the drain pipe 503. It then enters the input pipe 4 through the drain pipe 503 and the connecting pipe 501. The sludge removal flange 502 can be disassembled at any time to clean the sludge in the pipeline, which improves the water collection efficiency. Furthermore, during installation, the central guide column 6061 is inserted into the soil to complete the initial positioning of the load-bearing base 601, preventing lateral displacement. The operator observes the level 6062 and rotates the four corner helical claws 604 to adjust the screwing depth until the bubble is centered, ensuring that the load-bearing base 601 is level and providing a stable foundation for pump operation. The water pump 1 slides along the inner wall of the load-bearing base 601 to the top of the mounting groove 602. The gasket 603 in the mounting groove 602 buffers the hard contact and fills the gap. The fastening bolt 2 passes through the pump body mounting hole and the gasket 603, is screwed into the threaded hole of the mounting groove 602 and tightened diagonally to firmly lock the pump body. During operation, the helical claws 604 tightly engage with the soil to resist the thrust and pull-out forces generated by the pump body vibration. The handling handle 605 provides convenience for the overall movement of the mechanism and achieves stable fixation.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drainage device for water conservancy engineering construction, comprising a water pump (1), characterized in that: The input end of the water pump (1) is connected to an input pipe (4), the bottom end of the input pipe (4) is provided with a water collection mechanism (5), and the bottom of the water pump (1) is provided with a fixing mechanism (6). The water collection mechanism (5) includes a connecting pipe (501), which is connected to the input pipe (4). A sludge removal flange (502) is fixedly connected to the outer wall of the input pipe (4). A drain pipe (503) is fixedly connected to the inner wall of the sludge removal flange (502). A water collection hopper (505) is connected to the left end of the drain pipe (503). A flow guide hood (504) is fixedly connected to the inner wall of the water collection hopper (505). Multiple water inlets (506) are opened on the outer wall of the water collection hopper (505). A filter assembly (507) is provided on the inner wall of each of the multiple water inlets (506). A lifting base (508) is fixedly connected to the bottom of the water collection hopper (505). Multiple lifting components (509) are provided at the bottom of the lifting base (508).

2. The drainage device for water conservancy engineering construction according to claim 1, characterized in that: The fixing mechanism (6) includes a load-bearing base (601), the inner wall of which is slidably connected to the bottom of the water pump (1). The top of the load-bearing base (601) has two mounting slots (602), and the inner walls of the two mounting slots (602) are fixedly connected to two gaskets (603). The four corners of the load-bearing base (601) are threaded with helical claws (604). The top of the load-bearing base (601) is fixedly connected to two handling handles (605). The outer wall of the load-bearing base (601) is provided with a positioning component (606).

3. The drainage device for water conservancy engineering construction according to claim 1, characterized in that: The filter assembly (507) includes two pressure strips (5072), the outer walls of the two pressure strips (5072) are slidably connected to the inner wall of the water inlet (506), the outer walls of the two pressure strips (5072) are fixedly connected to the same filter screen (5071), and the outer walls of the two pressure strips (5072) are threaded with screws (5073).

4. A drainage device for water conservancy engineering construction according to claim 1, characterized in that: The lifting assembly (509) includes a lifting rod (5091), the top end of which is fixedly connected to the bottom of the lifting base (508). A fixing bolt (5092) is threadedly connected to the inner wall of the lifting rod (5091), and a disc nut (5093) is threadedly connected to the outer wall of the fixing bolt (5092). A plurality of positioning holes (5094) are provided on the outer wall of the lifting rod (5091), and a lifting cylinder (5095) is slidably connected to the outer wall of the lifting rod (5091).

5. A drainage device for water conservancy engineering construction according to claim 2, characterized in that: The positioning component (606) includes a central guide post (6061), the top of which is fixedly connected to the bottom of the support base (601), and a level (6062) is fixedly connected to the outer wall of the support base (601).

6. A drainage device for water conservancy engineering construction according to claim 1, characterized in that: The output end of the water pump (1) is fixedly connected to an output pipe (7), and the outer wall of the output pipe (7) is fixedly connected to a connecting flange (8).

7. A drainage device for water conservancy engineering construction according to claim 6, characterized in that: The inner wall of the connecting flange (8) is threaded with a fastening bolt (2), and the outer wall of the fastening bolt (2) is threaded with a fastening nut (3).

8. A drainage device for water conservancy engineering construction according to claim 7, characterized in that: The outer wall of the input pipe (4) is fixedly connected to a connecting flange (8), and the outer wall of the water pump (1) is threadedly connected to multiple fastening bolts (2).