CN210827521U - Foundation pit dewatering system applied to building construction - Google Patents

Abstract

The utility model relates to a be applied to foundation ditch precipitation system of construction relates to foundation ditch construction auxiliary assembly's technical field, and it includes the foundation ditch, has excavated the drainage well in the foundation ditch, and the drainage well is connected with the pipeline, and pipeline one end extends to the drainage well bottom, and the other end extends to the foundation ditch outside, is connected with the drain pump on the pipe shaft of pipeline, the end of the drainage well that the pipeline was kept away from has connected gradually through the water sand coarse filter box, the smart filter box of water sand and the water storage tank of connecting pipe intercommunication of each other, and the water storage tank is provided with the intake pipe, and the intake pipe is provided with the valve. The utility model discloses reach the effect that reduces water resource loss.

Description

Foundation pit dewatering system applied to building construction

Technical Field

The utility model belongs to the technical field of foundation ditch construction auxiliary assembly's technique and specifically relates to a be applied to building construction's foundation ditch precipitation system is related to.

Background

When the building site excavates the foundation ditch, because ground water level is higher than the excavation bottom surface, groundwater can constantly permeate the hole in, can be under dry condition under the construction for guaranteeing the foundation ditch, can carry out foundation ditch precipitation work usually, and the facility that is used for carrying out foundation ditch precipitation is generally called the foundation ditch precipitation system.

The construction of the existing foundation pit dewatering system is usually based on an open ditch and water collecting well dewatering method, a light well point dewatering method, a jet well point dewatering method, an electroosmosis well point dewatering method and a deep well point dewatering method, no matter which method is selected to construct the foundation pit dewatering system, the basic structure of the foundation pit dewatering system usually comprises a drainage well, a pipeline and a drainage pump, the drainage well is arranged in the foundation pit, the drainage pump is arranged in the foundation pit, and the drainage pump is communicated with a pipe body of the pipeline; one end of the pipeline extends into the drainage well, and the other end of the pipeline extends out of the drainage well and then extends to the outer side of the foundation pit; during operation, the pipeline is taken the water in the drainage well out under the effect of drainage pump, then discharges outside the foundation ditch along the pipeline, reaches the effect of the dry degree of assurance foundation ditch.

The above prior art solutions have the following drawbacks: the water pumped out of the drainage well is usually directly discharged to the outside of the foundation pit, so that the water resource is lost, and the water resource is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to building construction's foundation ditch precipitation system reaches the effect that reduces water resource loss.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a be applied to foundation ditch precipitation system of construction, includes the foundation ditch, excavates in the foundation ditch and has had the drainage well, and the drainage well is connected with the pipeline, and pipeline one end extends to the drainage well bottom, and the other end extends to the foundation ditch outside, is connected with the drain pump on the pipe shaft of pipeline, the end of the drainage well that the pipeline was kept away from has connected gradually the water sand coarse strainer, the smart filter box of water sand and the water storage tank that communicate through the connecting pipe each other, and the water storage tank is provided with the intake pipe, and the intake pipe is provided with.

Through adopting above-mentioned technical scheme, when carrying out precipitation, the water extraction of pipeline and water lift pump in with the precipitation well is to the water sand coarse strainer in, then under the filtering action of water sand coarse strainer, filter the great grit of aquatic volume earlier, after filtering, water enters into the water sand fine filter through the connecting tube between water sand coarse strainer and the fine filter box of water sand, filter the less grit of volume in the water again, water after filtering completion passes through the fine filter box of water sand and the connecting pipe between the water storage tank and enters into the water storage tank, water enters into the water storage tank and stores, the water that will originally directly discharge is retrieved, when needs carry out the use, directly open the water intaking valve and take out the water in the water storage tank through the intake pipe, the water that will originally directly discharge carries out reuse, the effect of reducing water resource loss has been reached, the waste of water resource has been avoided.

The utility model discloses further set up to: the water sand rough filtering box is vertically divided into a water outlet chamber and a coarse sand chamber, the coarse sand chamber is located above the water outlet chamber, a rough filtering net with rough filtering holes is arranged between the coarse sand chamber and the water outlet chamber, the pipeline is connected with the coarse sand chamber, and the connecting pipe is connected with the water outlet chamber.

Through adopting above-mentioned technical scheme, the coarse strainer filters the water sand through the coarse strainer hole, and the grit after the filtration completion is detained in the coarse sand room, after the great grit of volume accumulates to certain quantity, through the filter effect that grit itself has, can assist the coarse strainer to filter the water of follow-up entering, improves the filter effect of water sand coarse strainer.

The utility model discloses further set up to: the space ratio of the coarse sand chamber to the water outlet chamber is 3: 1.

Through adopting above-mentioned technical scheme, the space volume of grit chamber is greater than the space volume back of play water room, can save the grit for more spaces that the grit chamber provided, has reduced the clearance frequency of construction person to the grit chamber on the one hand, and on the other hand can improve the filter capacity of grit in the grit chamber space, improves the practicality of grit chamber.

The utility model discloses further set up to: the fine sand filtering box is vertically divided into a fine sand chamber and a water passing chamber, the fine sand chamber is located at a position close to the ground, a fine filter screen with fine filter holes is arranged between the fine sand chamber and the water passing chamber, one end of a connecting pipe between the coarse water sand filtering box and the fine water sand filtering box is communicated with the water outlet chamber, and the other end of the connecting pipe is communicated with the fine sand chamber.

Through adopting above-mentioned technical scheme, after the grit in the fine sand room accumulated to a certain quantity, can effectual improvement fine sand room in the pressure to can accelerate the speed that water passes through the secondary filter screen, and then improve the effect of fine filter chamber.

The utility model discloses further set up to: the space ratio of the fine sand chamber to the water passing chamber is 1: 3.

By adopting the technical scheme, the space in the fine sand chamber is smaller than that of the water passing chamber, on one hand, the waste of the internal space of the water sand filter box can be reduced due to the smaller volume of the sand filtered by the fine sand chamber, on the other hand, the quantity of the sand can be rapidly accumulated, the space pressure in the fine sand chamber can be rapidly increased, and the practicability of the fine sand chamber is improved; simultaneously, after the volume of fine sand room is less, can extrude the grit in the fine sand room, make the grit in disorder form the solid, make things convenient for the quick taking out of construction person, convenience when having improved the clearance of fine sand room.

The utility model discloses further set up to: the fine water sand filtering box is provided with a supporting plate, a vibration spring is arranged between the supporting plate and the fine water sand filtering box, the fine water sand filtering box is supported above the supporting plate by the vibration spring, and the fine water sand filtering box is connected with a vibration motor.

Through adopting above-mentioned technical scheme, the backup pad provides the holding power for shaking the spring, and the back has been supported with the fine filter box of water sand to the shaking spring, and the shaking spring can provide the vibrations space for the vibrations of the fine filter box of water sand, and shock dynamo provides the power of vibrations for the fine filter box of water sand, can prevent after the vibrations of fine filter box that the grit from distributing inhomogeneous condition emergence in fine sand room, improves the in service behavior in fine sand room.

The utility model discloses further set up to: the fine sand room all is provided with the grit with the coarse sand room and draws the door, draws the peripheral fixedly connected with sealing strip of door, and the grit draws the door and is provided with and opens and close the subassembly.

Through adopting above-mentioned technical scheme, the grit that sets up draws the door and can provide for the construction person and will pass through the grit filtration in water sand fine filter case and the water sand coarse strainer, and water sand fine filter case and water sand coarse filter case are carrying out filterable in-process step by step to water, differentiate to the grit simultaneously, have saved the construction person and have carried out the work step of differentiation to the grit, have improved the convenience of using.

The utility model discloses further set up to: the opening and closing assembly comprises an opening and closing ring, the opening and closing ring is fixedly connected with the sand extraction door, an opening and closing bolt is inserted into the opening and closing ring, and the opening and closing bolt is connected to the fine sand filtering box or the coarse sand filtering box in a sliding mode.

Through adopting above-mentioned technical scheme, the closed loop of opening that sets up is simple with the user mode of opening and close the bolt, and the operation degree of difficulty is lower to requirement to building constructor itself is lower, convenient operation and use, also convenient change and maintenance to opening and close the subassembly simultaneously.

To sum up, the utility model discloses a beneficial technological effect does:

1. the water sand rough filtering box, the water sand fine filtering box, the connecting pipe and the water storage box are matched for use, so that the effect of reducing water resource loss is achieved;

2. the subassembly and grit of opening and close that set up draw the door cooperation to use and make the grit can be drawed the utilization again, further improvement to natural resources's recycle ability.

Drawings

FIG. 1 is a schematic structural view of example 1.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view showing the structures of the fine and coarse screens.

Fig. 4 is a schematic view showing the structure of the fine filtration tank.

In the figure, 1, a foundation pit; 11. a drainage well; 12. a pipeline; 13. draining pump; 2. a water sand rough filtering box; 21. a water outlet chamber; 22. a coarse sand chamber; 221. coarse filtration; 222. coarse filtration pore; 3. a water sand fine filter box; 31. a fine sand chamber; 32. a water passing chamber; 311. fine filtration pore; 312. fine filtering net; 4. a water storage tank; 41. a water intake pipe; 42. a water taking valve; 5. a sand extraction gate; 52. an opening and closing assembly; 521. opening a closed loop; 522. opening and closing the bolt; 6. a connecting pipe; 7. a support plate; 71. vibrating the spring; 72. a vibration motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a be applied to foundation pit dewatering system of construction, including excavating the foundation pit 1 subaerial, it has circular shape drainage well 11 to excavate in the bottom of the pit of foundation pit 1, insert pipe form pipeline 12 in the drainage well 11, pipeline 12 one end stretches into inside drainage well 11, the other end comes from the extension in drainage well 11 after, connect with drain pump 13 earlier, then extend to the foundation pit 1 outside and connect gradually water sand coarse strainer 2, water sand fine filter box 3 and water storage tank 4, water sand coarse filter box 2, water sand fine filter box 3 and water storage tank 4 are mutually independent boxes, and communicate through connecting pipe 6, one side of foundation pit 1 that water storage tank 4 kept away from is provided with the intake pipe 41 that has water intaking valve 42; after water with a large amount of sand is extracted from the foundation pit 1 and sequentially passes through the filtering action of the water sand coarse filtering box 2 and the water sand fine filtering box 3, the filtered water enters the water storage tank 4 for storage, and when a building constructor needs to use the water, the water which can be used is taken out for utilization through the water taking pipe 41 and the water taking valve, so that the effect of reducing water resource loss is achieved.

Referring to fig. 3, the water sand coarse filter box 2 is a rectangular box body, a coarse filter 221 is fixedly connected in the water sand coarse filter box 2, a plurality of coarse filter holes 222 are formed in the coarse filter 221, the coarse filter 221 divides the inner space of the water sand coarse filter box 2 into a coarse sand chamber 22 and a water outlet chamber 21 in the vertical direction, and the coarse sand chamber 22 is located above the water outlet chamber 21; the space size ratio of the water outlet chamber 21 to the coarse sand chamber 22 is 1:3, the pipeline 12 is communicated with the coarse sand chamber 22, and the water outlet chamber 21 is communicated with the connecting pipe 6. The water pumped in the pipeline 12 enters the water outlet chamber 21 after passing through the coarse filter screen 221, and sand with a volume larger than that of the coarse filter holes 222 is retained in the coarse sand chamber 22 by the coarse filter screen 221, so that the primary filtration of the water is completed. The filtered water enters the water sand fine filtering box 3 through the connecting pipe 6 to be filtered again.

Referring to fig. 4, the water sand fine filtering box 3 is also a rectangular box, a rectangular supporting plate 7 is arranged between the water sand fine filtering box 3 and the ground, the supporting plate 7 is placed on the ground, four vibration springs 71 are fixedly connected to the top end of the supporting plate 7, the four vibration springs 71 are respectively located at four top corners of the supporting plate 7, the water sand fine filtering box 3 is supported above the supporting plate 7 by the four vibration springs 71, and a vibration motor 72 is fixedly connected to the bottom of the water sand fine filtering box 3; a fine filter net 312 is fixedly connected in the water-sand fine filter box 3, fine filter holes 311 are formed in the fine filter net 312, the aperture of each fine filter hole 311 is smaller than that of the corresponding coarse filter hole 222, the fine filter net 312 divides the interior of the water-sand fine filter box 3 into a fine sand chamber 31 and a water passing chamber 32 in the vertical direction, the water passing chamber 32 is located above the fine sand chamber 31, and the fine sand chamber 31 is communicated with the water outlet chamber 21 through a connecting pipe 6; the water passing chamber 32 is communicated with the water storage tank 4 through a connecting pipe 6; water enters the fine sand chamber 31 after being filtered by the water sand coarse filtering box 2, sand is retained in the fine sand chamber 31 under the action of the fine filtering net 312, the filtered water flows through the water chamber 32 and then enters the water storage tank 4 through the connecting pipe 6 for storage, and in the filtering process, the vibration motor 72 drives the water sand fine filtering box 3 to vibrate, so that the sand retained in the fine sand chamber 31 is kept flat all the time.

Referring to fig. 3 and 4, the fine sand chamber 31 and the coarse sand chamber 22 are both provided with rectangular sand extraction doors 5, and one side of each sand extraction door 5, which is far away from the outside, is provided with a rectangular rubber sealing strip, and the sealing strips are located at the edges of the sand extraction doors 5; one side that grit draws door 5 is close to the external world is provided with opens and close subassembly 52, open and close subassembly 52 including opening and close bolt 522 and opening and close ring 521, open closed ring 521 fixed connection and draw the outside of door 5 in the grit, the bolt 522 fixed connection that opens and close of fine sand room 31 is on the outer wall of fine sand filtration case 3, the bolt 522 fixed connection that opens and close of coarse sand room 22 is on the outer wall of coarse sand filtration room, open and close the bolt 522 and insert and open and close the back in the ring 521, grit draws door 5 and is in the encapsulated situation.

The implementation principle of the embodiment is as follows: after the drainage pump 13 extracts water containing a large amount of sand from the dewatering well through the pipeline 12, the water enters the coarse water sand filtering tank 2 along the pipeline 12 for filtering.

The water firstly enters the coarse sand chamber 22, sand is retained in the coarse sand chamber 22 under the action of the coarse filter screen 221, the water enters the water outlet chamber 21 under the action of natural gravity, the sand in the coarse sand chamber 22 is accumulated to completely cover the coarse filter screen 221, and the sand assists the coarse filter screen 221 to filter the water; water in the water outlet chamber 21 enters the fine sand chamber 31 through the pipeline 12, the water is firstly gathered in the fine sand chamber 31, when the height of the gathered water is higher than that of the fine filter net 312, the water enters the water passing chamber 32 through the fine filter net 312, sand and stone in the water are retained in the fine sand chamber 31 under the filtering action of the fine filter net 312, and then the sand and stone enter the water storage tank 4 from a connecting pipe 6 between the water passing chamber 32 and the water storage tank 4 for storage. When workers need to take out sand retained in the coarse sand chamber 22 or the fine sand chamber 31 for use, the opening and closing bolts 522 are only required to be pulled out from the opening and closing rings 521 one by one, then the sand extraction door 5 is opened to take out the needed sand, and water resources and soil resources are fully utilized. In conclusion, the effect of reducing the loss of water resources is achieved through the steps.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a be applied to foundation ditch precipitation system of construction, includes foundation ditch (1), has excavated drainage well (11) in foundation ditch (1), and drainage well (11) are connected with pipeline (12), and pipeline (12) one end extends to drainage well (11) bottom, and the other end extends to the foundation ditch (1) outside, is connected with drain pump (13), its characterized in that on the pipe shaft of pipeline (12): the end of the drainage well (11) far away from the pipeline (12) is sequentially connected with a water sand coarse filtering box (2), a water sand fine filtering box (3) and a water storage box (4) which are mutually communicated through a connecting pipe (6), the water storage box (4) is provided with a water taking pipe (41), and the water taking pipe (41) is provided with a water taking valve (42).

2. A foundation pit dewatering system for building construction according to claim 1, wherein: divide into in water sand coarse filter case (2) in vertical direction and go out water chamber (21) and coarse sand chamber (22), coarse sand chamber (22) are located water chamber (21) top, are provided with coarse strainer (221) that have coarse filtration hole (222) between coarse sand chamber (22) and water chamber (21), and pipeline (12) are connected with coarse sand chamber (22), and connecting pipe (6) are connected with play water chamber (21).

3. A foundation pit dewatering system for building construction according to claim 2, wherein: the space ratio of the coarse sand chamber (22) to the water outlet chamber (21) is 3: 1.

4. A foundation pit dewatering system for building construction according to claim 2, wherein: the fine water sand filtering box (3) is vertically arranged to be divided into a fine sand chamber (31) and a water passing chamber (32), the fine sand chamber (31) is located at a position close to the ground, a fine filter screen (312) with fine filter holes (311) is arranged between the fine sand chamber (31) and the water passing chamber (32), one end of a connecting pipe (6) between the fine water sand filtering box (2) and the fine water sand filtering box (3) is communicated with a water outlet chamber (21), and the other end of the connecting pipe is communicated with the fine sand chamber (31).

5. A foundation pit dewatering system for building construction according to claim 4, wherein: the space ratio of the fine sand chamber (31) to the water passing chamber (32) is 1: 3.

6. A foundation pit dewatering system for building construction according to claim 4, wherein: the water sand fine filtering box (3) is provided with a supporting plate (7), a vibration spring (71) is arranged between the supporting plate (7) and the water sand fine filtering box (3), the water sand fine filtering box (3) is erected above the supporting plate (7) by the vibration spring (71), and the water sand fine filtering box (3) is connected with a vibration motor (72).

7. A foundation pit dewatering system for building construction according to claim 4, wherein: the fine sand chamber (31) and the coarse sand chamber (22) are both provided with sand extraction doors (5), sealing strips are fixedly connected to the peripheries of the extraction doors, and the sand extraction doors (5) are provided with opening and closing assemblies (52).

8. A foundation pit dewatering system for building construction according to claim 7, wherein: open and close subassembly (52) including opening closed loop (521), open and close loop (521) and grit and draw door (5) fixed connection, open and close the loop (521) and insert in and be equipped with and open and close bolt (522), open and close bolt (522) sliding connection on fine filter box of water sand (3) or coarse filter box of water sand (2).

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