CN113931193B

CN113931193B - Building foundation ditch drainage structures

Info

Publication number: CN113931193B
Application number: CN202111282618.8A
Authority: CN
Inventors: 黄涓
Original assignee: Fujian Wangtai Construction Engineering Co ltd
Current assignee: Fujian Wangtai Construction Engineering Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-11-04
Anticipated expiration: 2041-11-01
Also published as: CN113931193A

Abstract

The application discloses a drainage structure of a building foundation pit, which relates to the technical field of foundation pit drainage and solves the problem of how rainwater is directly pumped away in rainy days, and comprises a drainage ditch and a water collecting well communicated with the drainage ditch, wherein the water collecting well is provided with a water collecting tank with an upward opening; the foundation ditch is installed the collector pipe, and the collector pipe intercommunication has the raceway, and the one end and the suction box of raceway are connected, and the inlet opening has been seted up to the collector pipe that is located the escape canal, and the regulating part is installed to the collector pipe, and the regulating part is including the first intercommunication state that makes escape canal and sump pit communicate to and make the second intercommunication state of escape canal and collector pipe intercommunication. This application can make comparatively limpid rainwater can directly get into and be taken away by the suction pump in the suction box to further reduce the condition that the suction pump pumped to silt.

Description

Building foundation ditch drainage structures

Technical Field

The application relates to the technical field of foundation pits, in particular to a drainage structure of a building foundation pit.

Background

When a foundation pit is excavated, in order to prevent the instability of a side slope, a soil nail wall is often sprayed on the side slope, a drain pipe is embedded in the soil nail wall, and gauze for filtering silt is filled in the drain pipe, so that water in the side slope can be discharged through the drain pipe.

Referring to fig. 5, a drainage ditch 1 and a water collecting well 2 are dug at a position, close to a side slope 3, of a foundation pit, water in a drainage pipe 31 flows into the water collecting well 2 through the drainage ditch 1, a water suction pump 10 used for pumping water in the water collecting well 2 is installed in the foundation pit, a filter screen 42 used for filtering silt is installed in the foundation pit, the filter screen 42 is located in the water collecting well 2 and surrounds the water collecting well 2 to form a circle, and a water suction pipe 20 of the water suction pump 10 is located in the filter screen 42.

In view of the above-mentioned related art, the inventor believes that in rainy days, the amount of water discharged from the drain pipe 31 of the side slope 3 is increased, the discharged water is clear, when clear rainwater flows into the water collecting well 2, the clear rainwater becomes turbid again, and the clear rainwater is primarily filtered by the filter screen 42 and can be pumped away.

Disclosure of Invention

How to supply with the suction pump extraction with comparatively limpid rainwater, this application provides a building foundation ditch drainage structures.

The application provides a building foundation ditch drainage structures adopts following technical scheme:

a drainage structure of a building foundation pit comprises a drainage ditch and a water collecting well communicated with the drainage ditch, wherein the water collecting well is provided with a water collecting tank with an upward opening, the opening of the water collecting tank is lower than that of the water collecting well, a water pumping tank with an upward opening is arranged in the middle of the water collecting tank, the opening of the water pumping tank is lower than that of the water collecting tank, a filter screen is arranged between the water collecting tank and the water pumping tank, a water pumping pump for pumping water in the water pumping tank is arranged on the foundation pit, and a water pumping pipe of the water pumping pump extends into the water pumping tank in a vertical state;

the utility model discloses a water collecting pipe, including foundation ditch, collecting well, raceway, delivery pipe, collecting well, delivery pipe and suction box, the collecting pipe is installed to the foundation ditch, the installation department that is used for supplying the collecting pipe installation is offered to the opening inner wall of collecting well, the collecting pipe is arranged along the opening profile of collecting well, the collecting pipe intercommunication has the raceway, the one end and the suction box of raceway are connected, the raceway uses the suction pipe to have a plurality of as central circumference equipartition, and partial collecting pipe is located the escape canal and laminate on the escape canal bottom, and is located the collection pipe in the escape canal and has seted up the inlet opening, the regulating part is installed to the collector pipe, the regulating part is including the first connected state that makes escape canal and collecting well intercommunication to and make the second connected state in escape canal and collector pipe intercommunication, the one end downwardly extending that the raceway is close to the suction box is to the suction box in, install the floating slab that is used for the shutoff raceway in the suction box.

By adopting the technical scheme, when raining does not occur, a lot of water in the drainage ditch and the water collecting well seeps out of the foundation pit, the drainage ditch and the water collecting well are in a first communication state through the adjusting part, the water in the drainage ditch needs to flow into the water collecting well after flowing through the water collecting pipe, the blocking of the water collecting pipe can also reduce silt flow in the drainage ditch, such as in the drainage well, because the outer wall of the water collecting pipe is in a circular pipe shape, silt is not easy to accumulate on the surface of the water collecting pipe, when the water in the water collecting well flows through the water collecting tank, the water is filtered by the filter screen, so that the filtered water enters the water pumping tank and is pumped, the water in the water collecting well can be pumped by the water pumping pump, and the silt is left in the water collecting well and the water collecting tank;

when raining, the water in the foundation ditch bank protection can flow into the escape canal through the drain pipe on the bank protection in, the water that the drain pipe flows at this time is more limpid also more than many, can make escape canal and collector pipe be in second intercommunication state through the regulating part this moment to in making comparatively clear water in the escape canal directly flow in the suction box through the raceway, reduce the chance of the silt contact in rainwater and the sump well, thereby make the suction pump can extract more clean water, and then play the effect of protection suction pump.

The water delivery pipe is circumferentially distributed by taking the rotating shaft as a center, so the water delivery pipe can also play a role in protecting the water collecting well, and can also prevent light impurities such as plastic bags, leaves and the like carried by wind when the windscreen wiper is blown down from falling into the water collecting well, the water collecting tank and the water pumping tank, and can also better prevent floaters in the water collecting well and the water collecting tank from entering the water pumping tank, and gaps among the water delivery pipes can only flow into the water pumping tank;

when the rainfall is large, the water quantity of the water delivery pipe entering the water pumping box is larger than the water quantity pumped by the water pumping pump, the floating plate upwards moves to plug the water delivery pipe under the buoyancy of the water, the water delivery pipe is enabled to be temporarily stored, and the water in the water delivery pipe continuously flows downwards when the water level descends.

Optionally, the perforation that is used for supplying the drinking-water pipe to pass is offered to the kickboard, the kickboard slides from top to bottom on the drinking-water pipe, the kickboard leaves the interval with the pumping box inner wall.

Through adopting above-mentioned technical scheme, the drinking-water pipe can play the guide effect to the kickboard to make the kickboard can play the shutoff effect to the raceway better.

Optionally, the adjusting member includes a sealing plate for sealing the drainage hole, and the sealing plate is slidably mounted on the water collecting pipe.

Through adopting above-mentioned technical scheme, leave the wash port through the slip shrouding and just can make most water flow in the sump pit, slip shrouding shutoff wash port to make the rivers in the drainage pit in the sump pit.

Optionally, the inlet opening is located on the outer wall of the collector pipe that deviates from the bottom of the drainage ditch.

By adopting the technical scheme, the water flow in the rainy period flows over the highest position of the water collecting pipe and then falls into the water collecting pipe, so that part of silt is reduced to enter the water collecting pipe, and the water in the water collecting pipe is kept in a clear state.

Optionally, a gauze is coated at the water inlet of the water collecting pipe.

Through adopting above-mentioned technical scheme, when comparatively limpid rainwater carried few silt, the gauze can further block silt to get into in the collector.

Optionally, a guide rail is mounted on the water delivery pipe close to the water pumping pipe, a gap is reserved between the guide rail and the water collecting pipe, and a sliding block connected with the guide rail in a sliding manner is connected to the sealing plate.

Through adopting above-mentioned technical scheme, the shrouding can stable installation on the collector pipe through the guide rail, and the rivers that overflow the collector pipe flow into between collector pipe and the guide rail, and then get into in the sump pit.

Optionally, the lower surface of the guide rail is connected with an insertion rod, the insertion rod is inserted between adjacent water pipes, and one side of the insertion rod, which is close to the water pipe, is attached to the water pipe.

Through adopting above-mentioned technical scheme, the clearance between the adjacent raceway can just supply the inserted bar to peg graft, because the clearance between the adjacent raceway reduces from the collector pipe to the direction of pumping box gradually, so the inserted bar is close to one side and the raceway laminating of raceway, can make the guide rail can the steady mounting on the raceway.

Optionally, the guide groove of the guide rail faces the water collection pipe.

Through adopting above-mentioned technical scheme, because the opening of draw-out water tank is less than the opening of sump pit, so when the shrouding passes through the slider and slides on the guide rail, can stabilize slidable mounting on the collector pipe.

In summary, the present application includes at least one of the following benefits:

1. clear rainwater can directly enter the water pumping box and is pumped away by the water pumping pump, so that the condition that silt is pumped by the water pumping pump is further reduced;

2. when the rainfall is increased and the space for accommodating water in the water pumping box is reduced, the floating plate plugs the water conveying pipe, so that the water conveying pipe can play a role in temporarily storing water, and the water pumping pump can pump water orderly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the present application showing the internal structure of the water collecting well and the water pipe blocked by the floating plate;

FIG. 3 is a second communication state of the present application embodying a drainage ditch in communication with a water collection pipe;

FIG. 4 is a first communication state of the present application embodying a drainage ditch in communication with a sump well;

fig. 5 is a schematic view of a drainage structure in the related art.

Description of reference numerals: 1. a drainage ditch; 2. a water collecting well; 21. an installation part; 3. side slope; 31. a drain pipe; 4. a water collection tank; 41. a water pumping tank; 42. a filter screen; 5. a water collection pipe; 51. a water inlet hole; 6. a water delivery pipe; 7. closing the plate; 71. a slider; 8. a guide rail; 81. a guide groove; 82. inserting a rod; 9. a floating plate; 10. a water pump; 20. a water pumping pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses building foundation ditch drainage structures. Referring to fig. 1, a drainage structure for a building foundation pit comprises a drainage ditch 1 and a water collecting well 2 communicated with the drainage ditch 1, wherein the cross section of the water collecting well 2 is of a circular structure. The drainage ditch 1 is close to 3 departments of the side slope of foundation ditch, has inserted drain pipe 31 on the side slope 3, and during rainy, ponding in the side slope 3 flows into in the drainage ditch 1 through drain pipe 31.

Referring to fig. 1 and 2, a water collecting tank 4 is installed in the water collecting well 2, a water pumping tank 41 is installed in the middle of the water collecting tank 4, the water collecting tank 4 and the water pumping tank 41 have upward openings, and the opening of the water pumping tank 41 is lower than the opening of the water collecting tank 4. A filter screen 42 is enclosed in the water collection tank 4, a gap is left between the filter screen 42 and the water collection tank 4 and the water pumping tank 41, and water entering the water collection tank 4 needs to be filtered by the filter screen 42 and then enters the water pumping tank 41. A water pump 10 for pumping water in a water tank 41 is installed on the foundation pit, and a water pumping pipe 20 of the water pump 10 extends into the water tank 41. Therefore, when the water pump 10 pumps water in the water collecting well 2, silt is not easy to enter the water pump 10. It should be noted that the water pumping box 41 may be provided with water permeable holes for water to enter, which are not shown in the figure.

Referring to fig. 2 and 3, during raining, as more water flows out of the drain pipe 31 and is clear, in order to enable clear rainwater to directly enter the water pumping box 41, the foundation pit is provided with a water collecting pipe 5 and a water delivery pipe 6 for guiding rainwater to enter the water pumping box 41, and the water collecting pipe 5 is provided with a jack for plugging the water supply pipe 6. The water collecting pipe 5 is communicated with the water conveying pipe 6. One end of the water delivery pipe 6, which is far away from the water collecting pipe 5, extends downwards into the water pumping box 41, and the water delivery pipe 6 is of an L-shaped structure. The clear rainwater can directly enter the water pumping box 41 through the water collecting pipe 5 and the water conveying pipe 6.

Referring to fig. 2 and 3, an installation portion 21 for installing the water collecting pipe 5 is opened on the inner wall of the opening of the water collecting well 2, the installation portion 21 is distributed along the opening contour of the water collecting well 2, and the water collecting pipe 5 is also distributed along the opening contour of the water collecting well 2. The water collecting pipe 5 is in a circular ring structure, and part of the water collecting pipe 5 is positioned in the drainage ditch 1. The water pumping pipes 20 are vertically extended into the middle part of the water pumping box 41, and the water delivery pipes 6 are distributed in the circumferential direction with the water pumping pipes 20 as the center. Many raceway 6 can play the guard action to sump pit 2, ensure through the personal safety of the staff of sump pit 2. The water pipe 6 can well prevent the floating materials in the water collecting well 2 and the water collecting tank 4 from entering the water pumping tank 41, and can also block plastic bags, leaves and the like blown by strong wind from the outside, so that the water in the water pumping tank 41 is cleaner.

Referring to fig. 3, the water collecting pipe 5 in the drainage ditch 1 is provided with a plurality of water inlet holes 51, and the water inlet holes 51 are located on the outer wall of the water collecting pipe 5 departing from the drainage ditch 1. The part of the water collecting pipe 5 with the water inlet 51 may be covered with gauze, and the gauze is not shown in the figure in order to highlight the water inlet 51. The gauze can block the silt carried by the rainwater, so that the condition that the silt is pumped by the water pump 10 is further reduced.

Referring to fig. 3 and 4, an adjusting member for blocking the water inlet hole 51 is installed on the water collecting pipe 5. The adjusting member includes a first communication state for communicating the drainage ditch 1 with the water collecting well 2, and a second communication state for communicating the drainage pipe 31 with the water collecting pipe 5. During first connected state, the water in escape canal 1 overflows collector pipe 5 and gets into in the sump pit 2, and collector pipe 5 can play the effect of stopping to the silt in escape canal 1, reduces in the escape canal 1 silt gets into the sump pit 2.

Referring to fig. 2 and 3, the adjusting member includes a sealing plate 7, the sealing plate 7 is slidably mounted on the water collecting pipe 5, and the cross section of the sealing plate 7 has an arc-shaped structure. A guide rail 8 is installed on the water pipe 6 close to the pumping pipe 20, a sliding block 71 is connected to the sealing plate 7, a guide groove 81 of the guide rail 8 faces the water collecting pipe 5, and the sliding block 71 is slidably installed in the guide groove 81. Thereby allowing the sealing plate 7 to be stably slidably mounted on the header pipe 5, and the mounting portion 21 has a space into which the sealing plate 7 is slid.

Referring to fig. 2 and 3, the lower surface of the guide rail 8 is connected with an insertion rod 82, and the insertion rod 82 is inserted into a gap between adjacent water pipes 6. One side of the inserted rod 82 close to the water pipe 6 is attached to the water pipe 6, and the gap between adjacent water pipes 6 is gradually reduced from the water collecting pipe 5 to the water pumping box 41, so that the guide rail 8 can be stably installed on the water pipe 6 when being inserted into the water pipe 6 through the inserted rod 82.

Referring to fig. 2, a floating plate 9 for blocking the water pipe 6 is installed in the pumping tank 41. The floating plate 9 is provided with a through hole for the water pumping pipe 20 to pass through, when the floating plate 9 floats up and down, the floating plate 9 is slidably mounted on the water pumping pipe 20, and the water pumping pipe 20 plays a role in guiding the floating plate 9. A gap is left between the floating plate 9 and the inner wall of the water pumping tank 41, and water in the water collecting tank 4 enters the water pumping tank 41 through the gap between the floating plate 9 and the water pumping tank 41. When the rainfall is large, the floating plate 9 can float up to block the water delivery pipe 6, so that the water delivery pipe 6 can play a role in temporarily storing rainwater, and when the water level in the water pumping box 41 descends, water in the water delivery pipe 6 continues to be left in the water pumping box 41. The floating plate 9 can also reduce the foreign matters brought into the pumping box 41 by wind.

The implementation principle of the drainage structure of the building foundation pit in the embodiment of the application is as follows:

after raining, when the flowing water in the drainage ditch 1 is clear, the sealing plate 7 is slid away from the water inlet hole 51, so that clear rainwater flows into the water collecting pipe 5, the water collecting pipe 5 directly guides the rainwater into the water pumping box 41 through the water conveying pipe 6, and the clear rainwater does not need to enter the water collecting well 2 and is filtered.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a building foundation ditch drainage structures, includes escape canal (1) and sump pit (2) with escape canal (1) intercommunication, its characterized in that: the water collecting tank (4) with an upward opening is installed on the water collecting well (2), the opening of the water collecting tank (4) is lower than the opening of the water collecting well (2), a water pumping tank (41) with an upward opening is installed in the middle of the water collecting tank (4), the opening of the water pumping tank (41) is lower than the opening of the water collecting tank (4), a filter screen (42) is installed between the water collecting tank (4) and the water pumping tank (41), a water pumping pump (10) for pumping water in the water pumping tank (41) is installed on the foundation pit, and a water pumping pipe (20) of the water pumping pump (10) extends into the water pumping tank (41) in a vertical state;

collector pipe (5) are installed to the foundation ditch, installation department (21) that are used for supplying collector pipe (5) to install are offered to the opening inner wall of collector well (2), collector pipe (5) are arranged along the opening profile of collector well (2), collector pipe (5) intercommunication has raceway (6), the one end and the suction box (41) of raceway (6) are connected, raceway (6) use suction pipe (20) to have a plurality of for central circumference equipartition, and partial collector pipe (5) are located escape canal (1) and laminate on escape canal (1) bottom, and are located the second intercommunication state of drain canal (5) in escape canal (1) seted up inlet opening (51), regulating part is installed in collector pipe (5), the regulating part is including making the first intercommunication state of escape canal (1) and collector well (2) intercommunication to and make escape canal (1) and collector pipe (5) intercommunication, raceway (6) are close to the one end downwardly extending to suction box (41) of suction box (41), install the water piping (9) in the suction box (41) and be used for the shutoff.

2. The drainage structure for the foundation pit of the building as claimed in claim 1, wherein: the floating plate (9) is provided with a through hole for the water pumping pipe (20) to pass through, and the floating plate (9) slides up and down on the water pumping pipe (20).

3. The drainage structure for the foundation pit of the building as claimed in claim 1, wherein: the adjusting piece comprises a sealing plate (7) used for sealing the drain hole, and the sealing plate (7) is slidably mounted on the water collecting pipe (5).

4. The drainage structure for the foundation pit of claim 3, wherein: the water inlet hole (51) is formed in the outer wall of the water collecting pipe (5) deviating from the bottom of the drainage ditch (1).

5. The drainage structure for the building foundation pit as claimed in claim 3, wherein: the water inlet hole (51) of the water collecting pipe (5) is coated with gauze.

6. The drainage structure for the foundation pit of claim 3, wherein: the water delivery pipe (6) close to the water pumping pipe (20) is provided with a guide rail (8), and the sealing plate (7) is connected with a sliding block (71) which is in sliding connection with the guide rail (8).

7. The drainage structure for the building foundation pit as claimed in claim 6, wherein: the lower surface of the guide rail (8) is connected with an inserting rod (82), the inserting rod (82) is inserted between adjacent water conveying pipes (6), and one side, close to the water conveying pipes (6), of the inserting rod (82) is attached to the water conveying pipes (6).

8. The drainage structure for the foundation pit of claim 6, wherein: the guide groove (81) of the guide rail (8) faces the water collecting pipe (5).