Water conservancy construction drainage device
By driving the drainage screw to rotate with a drive motor, combined with the cleaning scraper and the pushing vortex blade, the problem of complex structure and discontinuous cleaning in existing water conservancy construction drainage devices is solved, realizing automatic continuous cleaning and improving drainage efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陈丹玫
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
Smart Images

Figure CN224495179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction drainage technology, and in particular to a drainage device for water conservancy construction. Background Technology
[0002] During water conservancy construction, it is necessary to drain accumulated water from foundation pits and other facilities, thus requiring the use of drainage devices. Chinese utility model CN216892704U discloses a drainage device for water conservancy construction. This device, while transporting water, starts a motor to drive a reciprocating screw, which in turn moves a reciprocating block back and forth, causing a push-pull rod to move back and forth, and ultimately a push plate to move back and forth, pushing away impurities accumulated around the filter plate. This minimizes the impact of impurities on water transport efficiency and improves drainage efficiency. However, this drainage device still has the following problems in use:
[0003] This water conservancy construction drainage device requires a starting motor to drive a reciprocating screw to rotate, which in turn drives a reciprocating block to move back and forth, which in turn drives a push-pull rod to move back and forth, which in turn drives a push plate to move back and forth, pushing away the impurities accumulated around the filter plate. The structure is relatively complex, and a separate cleaning operation with a motor in the water body is also required, which is costly. Moreover, the reciprocating pushing cleaning method cannot clean continuously and is not effective at cleaning small impurities. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to provide a drainage device for water conservancy construction to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0006] To achieve the above objectives, one embodiment of this utility model provides a drainage device for water conservancy construction, including a main drainage pipe. The bottom and bottom surfaces of the main drainage pipe are provided with a plurality of filter holes. A drainage screw is rotatably connected to the inner wall of the main drainage pipe. The bottom of the central shaft of the drainage screw extends through the center of the bottom surface of the main drainage pipe. A plurality of cleaning scrapers are fixedly connected to the bottom end of the central shaft of the drainage screw. The cleaning scrapers are arranged in a radial annular array around the central shaft of the drainage screw. The side of the cleaning scrapers away from the central shaft of the drainage screw protrudes from the outer wall of the main drainage pipe. A rotating ring is fixedly connected to the top of the side of the cleaning scrapers away from the central shaft of the drainage screw. A pushing vortex is fixedly connected to the top of the rotating ring. The inner side of the pushing vortex contacts the outer wall of the main drainage pipe. The tops of the cleaning scrapers contact the bottom surface of the main drainage pipe. A drainage connector is fixedly connected to one side of the top of the main drainage pipe. A drive motor is fixedly connected to the center of the top surface of the main drainage pipe. The output end of the drive motor is fixedly connected to the top of the central shaft of the drainage screw.
[0007] Preferably, in any of the above embodiments, the diameter of the drain screw matches the diameter of the inner wall of the drain pipe, and the length of the drain screw is adapted to the length of the inner wall of the drain pipe.
[0008] The technical effect achieved by adopting the above solution is to ensure that the drain screw and the main drain pipe can be fully matched, thereby improving the drainage effect.
[0009] Preferably, in any of the above embodiments, a guide cone panel is fixedly connected to one side of the bottom of the outer wall of the main drainage pipe, a fixed annular plate is fixedly connected to the outer side of the guide cone panel, a plurality of support legs are fixedly connected to the bottom of the fixed annular plate, a baffle is fixedly connected to the bottom of each of the support legs, and a fixed ground spike is fixedly connected to the center of the bottom surface of the baffle.
[0010] The technical effects achieved by adopting the above solution are: the baffle can block the insertion depth, and the fixed support can improve the stability during drainage.
[0011] Preferably, in any of the above embodiments, the bottom edge of the guide cone panel coincides with the outer wall of the main drain pipe, and the position of the bottom edge of the guide cone panel corresponds to the topmost row of edges among several filter holes on the side of the main drain pipe.
[0012] The technical effect achieved by the above solution is that the upward-pushing impurities can be guided and pushed outward along the inclined surface of the guide cone panel, preventing the impurities from sliding upward along the edge of the outer wall of the drainage main pipe.
[0013] Preferably, in any of the above embodiments, the top surface of the cleaning scraper and the inner side of the pushing vortex blade are both fixedly connected with bristles, and the height of the pushing vortex blade is the same as the distribution height of the plurality of filter holes.
[0014] The technical effect achieved by adopting the above solution is that the cleaning effect can be improved by the bristles, and the pushing vortex can completely push the impurities on the outer wall of several filter holes away from the distribution range of several filter holes.
[0015] Preferably, in any of the above schemes, the bottom surface of the baffle is lower than the bottom surface of the main drain pipe, and a plurality of the supporting legs are arranged in a circular array around the center of the main drain pipe.
[0016] The technical effect achieved by adopting the above solution is to support the bottom of the drainage main pipe, preventing the filter holes on the bottom surface from being pressed to the bottom of the water and causing blockage.
[0017] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0018] This hydraulic construction drainage device uses a drive motor to rotate a drainage screw, which lifts the water entering the main drainage pipe upwards and discharges it. At the same time, the rotating drainage screw drives several cleaning scrapers and a pushing vortex to rotate, scraping off impurities filtered by several filter holes on the bottom and sides of the main drainage pipe, achieving automatic cleaning without the need for a separate power source. Moreover, it performs continuous cleaning while pumping water, resulting in better cleaning and improved drainage efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a side view of the structure of this utility model;
[0021] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.
[0022] In the diagram: 1-Drainage main pipe, 2-Drive motor, 3-Drainage connector, 4-Guide cone panel, 5-Fixed annular plate, 6-Support leg, 7-Baffle, 8-Fixed ground spike, 9-Filter hole, 10-Rotating ring, 11-Pushing vortex blade, 12-Cleaning scraper, 13-Drainage screw. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0024] Example 1: As Figures 1 to 3 As shown, a drainage device for water conservancy construction includes a main drainage pipe 1. Several filter holes 9 are provided on the bottom and bottom surface of the main drainage pipe 1. A drainage screw 13 is rotatably connected to the inner wall of the main drainage pipe 1. The bottom of the central shaft of the drainage screw 13 extends through the center of the bottom surface of the main drainage pipe 1. Several cleaning scrapers 12 are fixedly connected to the bottom end of the central shaft of the drainage screw 13. The cleaning scrapers 12 are arranged in a radial annular array around the central shaft of the drainage screw 13. The side of the cleaning scrapers 12 away from the central shaft of the drainage screw 13 protrudes from the main drainage pipe. On the outer wall of pipe 1, a rotating ring 10 is fixedly connected to the top of several cleaning scrapers 12 on the side away from the central axis of the drain screw 13. A pushing vortex blade 11 is fixedly connected to the top of the rotating ring 10. The inner side of the pushing vortex blade 11 is in contact with the outer wall of the drain pipe 1. The top of several cleaning scrapers 12 is in contact with the bottom surface of the drain pipe 1. A drain pipe 3 is fixedly connected to one side of the top of the drain pipe 1. A drive motor 2 is fixedly connected to the center of the top surface of the drain pipe 1. The output end of the drive motor 2 is fixedly connected to the top of the central axis of the drain screw 13.
[0025] As an optional technical solution of this utility model, the diameter of the drain screw 13 matches the inner wall diameter of the drain pipe 1, and the length of the drain screw 13 is adapted to the inner wall length of the drain pipe 1, so that the drain screw 13 and the drain pipe 1 can be fully matched to improve the drainage effect.
[0026] As an optional technical solution of this utility model, a guide cone panel 4 is fixedly connected to one side of the bottom of the outer wall of the drainage main pipe 1. A fixed annular plate 5 is fixedly connected to the outer side of the guide cone panel 4. A plurality of support legs 6 are fixedly connected to the bottom of the fixed annular plate 5. A baffle 7 is fixedly connected to the bottom of each of the support legs 6. A fixed ground spike 8 is fixedly connected to the center of the bottom surface of the baffle 7. The fixed ground spike 8 is easy to insert into the bottom of the water for fixation. The baffle 7 can block the insertion depth. The fixed support improves the stability during drainage.
[0027] As an optional technical solution of this utility model, the bottom edge of the guide cone panel 4 coincides with the outer wall of the drain pipe 1, and the position of the bottom edge of the guide cone panel 4 corresponds to the top row of edges of a plurality of filter holes 9 on the side of the drain pipe 1. The guide cone panel 4 can guide the upward-pushed impurities outward along the inclined surface of the guide cone panel 4 to prevent the impurities from sliding upward along the edge of the outer wall of the drain pipe 1.
[0028] As an optional technical solution of this utility model, the top surface of the cleaning scraper 12 and the inner side of the pushing vortex blade 11 are both fixedly connected with bristles. The height of the pushing vortex blade 11 is the same as the distribution height of the plurality of filter holes 9. The cleaning effect can be improved by the bristles. At the same time, the pushing vortex blade 11 can completely push the impurities on the outer wall of the plurality of filter holes 9 away from the distribution range of the plurality of filter holes 9.
[0029] As an optional technical solution of this utility model, the bottom surface of the baffle 7 is lower than the bottom surface of the drain pipe 1, and several support legs 6 are arranged in a circular array around the center of the drain pipe 1, so that the bottom of the drain pipe 1 is supported and the several filter holes 9 on the bottom surface are pressed to the bottom of the water and cause blockage.
[0030] A drainage device for hydraulic construction, the working principle of which is as follows:
[0031] 1) By driving the drain screw 13 to rotate via the drive motor 2, the water that has entered the drain pipe 1 can be lifted upwards and discharged.
[0032] 2) The water at the bottom enters the main drain pipe 1 through several filter holes 9, and impurities are intercepted through the filter holes 9;
[0033] 3) The rotating drain screw 13 can drive several cleaning scrapers 12 and pusher vortex blades 11 to rotate and scrape off the impurities filtered by several filter holes 9 on the bottom and side of the drain main pipe 1, so as to achieve automatic cleaning.
[0034] In summary, this hydraulic construction drainage device, driven by the drive motor 2 to rotate the drainage screw 13, can lift and discharge the water entering the main drainage pipe 1. At the same time, the rotating drainage screw 13 can drive several cleaning scrapers 12 and the pushing vortex blade 11 to rotate, scraping off the impurities filtered by the filter holes 9 on the bottom and sides of the main drainage pipe 1, thus achieving automatic cleaning without the need for a separate power source. Moreover, continuous cleaning is performed while pumping water, resulting in better cleaning and improved drainage efficiency.
[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A drainage device for hydraulic construction, characterized in that: The system includes a main drain pipe (1), with several filter holes (9) on the bottom and bottom surfaces of the main drain pipe (1). A drain screw (13) is rotatably connected to the inner wall of the main drain pipe (1). The bottom of the central shaft of the drain screw (13) extends through the center of the bottom surface of the main drain pipe (1). Several cleaning scrapers (12) are fixedly connected to the bottom end of the central shaft of the drain screw (13). The cleaning scrapers (12) are arranged in a radial ring array around the central shaft of the drain screw (13). The side of the cleaning scrapers (12) away from the central shaft of the drain screw (13) protrudes from the outer wall of the main drain pipe (1). A rotating ring (10) is fixedly connected to the top of the scraper (12) on the side away from the central axis of the drain screw (13). A pusher vortex (11) is fixedly connected to the top of the rotating ring (10). The inner side of the pusher vortex (11) is in contact with the outer wall of the drain pipe (1). The top of several scrapers (12) is in contact with the bottom surface of the drain pipe (1). A drain pipe (3) is fixedly connected to one side of the top of the drain pipe (1). A drive motor (2) is fixedly connected to the center of the top surface of the drain pipe (1). The output end of the drive motor (2) is fixedly connected to the top of the central axis of the drain screw (13).
2. The drainage device for hydraulic construction according to claim 1, characterized in that: The diameter of the drain screw (13) matches the inner wall diameter of the drain pipe (1), and the length of the drain screw (13) is adapted to the length of the inner wall of the drain pipe (1).
3. A drainage device for hydraulic construction according to claim 2, characterized in that: A guide cone panel (4) is fixedly connected to one side of the bottom of the outer wall of the drainage main pipe (1). A fixed annular plate (5) is fixedly connected to the outer side of the guide cone panel (4). A number of support legs (6) are fixedly connected to the bottom of the fixed annular plate (5). A baffle (7) is fixedly connected to the bottom of each of the support legs (6). A fixed ground spike (8) is fixedly connected to the center of the bottom surface of the baffle (7).
4. A drainage device for hydraulic construction according to claim 3, characterized in that: The bottom edge of the guide cone panel (4) coincides with the outer wall of the drain pipe (1), and the position of the bottom edge of the guide cone panel (4) corresponds to the top row of edges among several filter holes (9) on the side of the drain pipe (1).
5. A drainage device for hydraulic construction according to claim 4, characterized in that: The top surface of the cleaning scraper (12) and the inner side of the pusher vortex (11) are both fixedly connected with bristles, and the height of the pusher vortex (11) is the same as the distribution height of the plurality of filter holes (9).
6. A drainage device for hydraulic construction according to claim 5, characterized in that: The bottom surface of the baffle (7) is lower than the bottom surface of the main drain pipe (1), and several of the supporting legs (6) are arranged in a circular array around the center of the main drain pipe (1).