CN212001210U - Novel foundation pit drainage device - Google Patents

Abstract

A novel foundation pit drainage device comprises a sand-free pipe embedded in a foundation pit and an iron leather cylinder arranged in the sand-free pipe, wherein broken stones are filled in the outer wall area of the iron leather cylinder in the sand-free pipe, and the top of the sand-free pipe is sequentially provided with a cushion layer, a waterproof coiled material and a basic raft plate from bottom to top; the method has the technical key points that before drainage, only one sand-free pipe needs to be embedded, broken stones are filled at the bottom of the sand-free pipe, and then an iron sheet cylinder with a submersible pump is placed, so that stagnant water in the foundation pit can be drained, and construction is convenient; the steel screw cap is assembled at the threaded opening, the screw cap is tightly covered and the waterproof coiled material is tightly wrapped, so that the construction of other procedures can be carried out, the adverse effect on the subsequent construction can not be caused, the hidden danger of water seepage can not be caused, and the plugging operation is more convenient; the submersible pump and the self-sucking pump which can automatically switch operation are used, the self-sucking pump is adopted to pump water when the underground water quantity is small, the submersible pump is adopted to drain water when the water quantity is large, and the targeted drainage operation can be carried out.

Description

Novel foundation pit drainage device

Technical Field

The utility model belongs to the technical field of the foundation ditch drainage, specifically a novel foundation ditch drainage device.

Background

The existing foundation pit drainage system generally adopts the following modes: a. dewatering by a dewatering well; b. a drainage ditch and a water collecting pit are arranged at the side of the foundation pit for dewatering; c. directly pumping water by using a water pump;

however, the existing foundation pit drainage device has the following defects: firstly, the dewatering well is arranged, the cost is high, and the foundation cushion is poured in the later period and is not easy to block; secondly, the drainage ditch and the water collecting pit are arranged at the periphery of the foundation pit, so that the water level at the periphery of the foundation pit can only be reduced, and the stagnant water level in the foundation pit cannot be reduced; and thirdly, a water pump is directly used for pumping water, only the open water in the foundation pit can be pumped out, and if the water quantity is large, the cushion layer and the waterproof protective layer are easily broken after the cushion layer is poured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a novel foundation ditch drainage device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel foundation pit drainage device comprises a sand-free pipe embedded in a foundation pit and an iron leather tube arranged in the sand-free pipe, wherein broken stones are filled in the outer wall area of the iron leather tube in the sand-free pipe, a cushion layer, a waterproof coiled material and a basic raft are sequentially arranged at the top of the sand-free pipe from bottom to top, and the waterproof coiled material can wrap a threaded opening preset at the top end of the iron leather tube;

the surface of the iron sheet cylinder is provided with a plurality of water inlet holes, a submersible pump is arranged in the iron sheet cylinder, a drain pipe communicated with the outside is arranged at the position of a water inlet at the top end of the submersible pump, and a lower pipe body and a mesh pipe are welded at a water outlet at the bottom end of the submersible pump;

an electric valve is arranged at the position of the connecting end of the drain pipe and the submersible pump, and a liquid level sensor is arranged on the outer surface of the drain pipe;

the utility model discloses a liquid level sensor, including body and mesh pipe, the link inner wall between body and the mesh pipe is provided with the slide that can carry out the slip down, and the top of slide is provided with the flotation pontoon, the electromagnetic chuck is installed with the position department that the body corresponds down to the slide bottom, electromagnetic chuck and electric valve all are connected through setting up the wire with between the level sensor.

Preferably, a sealing opening is reserved at a position, adjacent to the threaded opening, of the surface of the waterproof coiled material, and a steel screw cap is spirally assembled on the surface of the threaded opening.

Preferably, the lower pipe body and the mesh pipe are of an integrated structure and are of a square pipe body structure, a sliding plate is slidably mounted between the lower pipe body and the mesh pipe, the sliding plate can block the communication state formed by the lower pipe body and the mesh pipe when the sliding plate is closed, and an angle formed by the sliding plate and a horizontal line is 45-60 degrees in the same plane.

Preferably, the inner wall of the lower pipe body is provided with a sliding groove matched with the sliding plate, and a stop block is welded at the position where the bottom end of the sliding plate is tightly attached to the inner wall of the lower pipe body.

Preferably, the electromagnetic chuck is a strip-shaped plate-shaped structure, and the electromagnetic chuck can perform magnetic adsorption on the bottom end of the sliding plate.

Preferably, the drain pipe is installed the self priming pump with the one end of external intercommunication, and is connected through setting up the wire between self priming pump and the level sensor.

Compared with the prior art, the utility model provides a novel foundation ditch drainage device has following beneficial effect:

firstly, before drainage, only one sand-free pipe needs to be embedded, broken stones are filled at the bottom of the sand-free pipe, and then an iron leather cylinder with a submersible pump is placed, so that stagnant water in a foundation pit can be drained, and construction is convenient;

secondly, a steel nut is assembled at the threaded opening, the threaded opening is tightly covered, and the waterproof coiled material is tightly wrapped, so that the construction of other procedures can be carried out, the adverse effect on the subsequent construction can not be caused, the hidden danger of water seepage can not be caused, and the plugging operation is more convenient;

thirdly, the submersible pump and the self-sucking pump which can automatically switch operation are used, the self-sucking pump is adopted to pump water when the underground water quantity is small, the submersible pump is adopted to drain water when the water quantity is large, and the targeted drainage operation can be carried out.

Drawings

FIG. 1 is a schematic drawing of the pumping and draining of the submersible pump of the present invention;

fig. 2 is a schematic structural diagram of the plugging state of the present invention;

fig. 3 is an enlarged view of a partial structure a of fig. 1 according to the present invention.

Reference numerals: 1. a sand-free pipe; 2. a sheet iron cylinder; 3. a water inlet hole; 4. a threaded opening; 5. a cushion layer; 6. waterproof coiled materials; 7. a submersible pump; 71. a lower pipe body; 72. a mesh tube; 8. a drain pipe; 9. an electrically operated valve; 10. a liquid level sensor; 11. a basic raft plate; 12. a slide plate; 13. a float bowl; 14. a chute; 15. a stopper; 16. an electromagnetic chuck.

Detailed Description

The following description will further describe a specific embodiment of the novel foundation pit drainage device of the present invention with reference to fig. 1. The utility model relates to a novel foundation ditch drainage device is not limited to the description of following embodiment.

The embodiment provides a concrete structure of a novel foundation pit drainage device, and as shown in fig. 1-3, the novel foundation pit drainage device comprises a sand-free pipe 1 embedded in a foundation pit and an iron leather tube 2 arranged in the sand-free pipe 1, broken stones are filled in the outer wall area of the iron leather tube 2 in the sand-free pipe 1, a cushion layer 5, a waterproof coiled material 6 and a basic raft 11 are sequentially arranged at the top of the sand-free pipe 1 from bottom to top, and the waterproof coiled material 6 can wrap a threaded opening 4 preset at the top end of the iron leather tube 2;

before the whole drainage device drains water, only one sand-free pipe 1 needs to be buried, broken stones are filled at the bottom of the sand-free pipe 1, and then an iron sheet cylinder 2 with a submersible pump 7 is placed to drain stagnant water in a foundation pit, so that construction is convenient.

The surface of the iron sheet cylinder 2 is provided with a plurality of water inlet holes 3, the interior of the iron sheet cylinder 2 is provided with a submersible pump 7, a water outlet pipe 8 communicated with the outside is arranged at the position of a water inlet at the top end of the submersible pump 7, and a lower pipe body 71 and a mesh pipe 72 are welded at a water outlet at the bottom end of the submersible pump 7;

an electric valve 9 is arranged at the position of the connecting end of the drain pipe 8 and the submersible pump 7, and a liquid level sensor 10 is arranged on the outer surface of the drain pipe 8;

the inner wall of the connecting end between the lower pipe body 71 and the mesh pipe 72 is provided with a sliding plate 12 capable of sliding, the top end of the sliding plate 12 is provided with a buoy 13, the bottom end of the sliding plate 12 is provided with an electromagnetic chuck 16 corresponding to the lower pipe body 71, and the electromagnetic chuck 16 and the electric valve 9 are connected with the liquid level sensor 10 through a lead.

The utility model is suitable for the position with more water retention in the foundation pit, compared with the traditional foundation pit drainage, the device can protect the foundation cushion layer from being damaged by the groundwater, and simultaneously, the condition that the raft plate can not be poured is avoided;

meanwhile, a PLC with the model number of FX2N-16mr is arranged inside the liquid level sensor 10, so that the liquid level sensor 10 can be used as a liquid level switch and is started to work when a set water level is reached.

As shown in fig. 1 and 2, a sealing opening is reserved on the surface of the waterproof coiled material 6 adjacent to the threaded opening 4, and a steel screw cap is screwed on the surface of the threaded opening 4.

Specifically, 4 department assembly steel nuts at the screw thread mouth, the lid is tight and is tight with waterproofing membrane 6 parcel, just can carry out all the other process constructions, can not cause harmful effects to subsequent construction, also can not become the infiltration hidden danger, and is comparatively convenient when carrying out the shutoff operation.

As shown in fig. 1 and 3, the lower tube 71 and the mesh tube 72 are of an integral structure, each of which is a square tube structure, and the sliding plate 12 is slidably mounted between the lower tube 71 and the mesh tube 72, and when the sliding plate 12 is closed, the sliding plate 12 can block the communication state formed by the lower tube 71 and the mesh tube 72, and in the same plane, the angle formed by the sliding plate 12 and the horizontal line is 45-60 °.

Specifically, the sliding plate 12 adopts an inclined design, so that the sliding plate 12 can slide upwards under the driving action of the buoy 13, and when the electromagnetic chuck 16 is opened again, the sliding plate 12 can be restored to the original shape to seal the communication end of the lower pipe body 71 and the mesh pipe 72; meanwhile, the lower pipe body 71 with the inclined port has more water inflow than the pipe body with the traditional plane port.

As shown in FIG. 3, the inner wall of the lower tube 71 is provided with a chute 14 matching with the sliding plate 12, and a stopper 15 is welded at the position where the bottom end of the sliding plate 12 is tightly attached to the inner wall of the lower tube 71.

Specifically, the stopper 15 serves to block the slide plate 12 sliding obliquely upward, and prevent the slide plate 12 from being separated from the lower pipe 71.

As shown in fig. 3, the electromagnetic chuck 16 has a strip-shaped plate-like structure, and the electromagnetic chuck 16 can magnetically attract the bottom end of the slide plate 12.

As shown in FIG. 1, a self-priming pump is installed at the end of the drain pipe 8 communicated with the outside, and the self-priming pump is connected with the liquid level sensor 10 through a lead.

Above-mentioned use immersible pump 7 and the self priming pump that can switch the operation by oneself, adopt the self priming pump to draw water when the groundwater yield is less, then adopt immersible pump 7 to drain water when the water yield is great, can carry out the pertinence drainage operation.

Specifically, when the underground water amount is small, the liquid level sensor 10 is started to operate, when the water level is detected to reach a lower water level line, an instruction is sent to the electric valve 9 to start the electric valve, and meanwhile, the external self-priming pump is started to pump water, at the moment, the whole drain pipe 8 can be extended downwards, so that the subsequent pumping operation is facilitated;

when the underground water amount is large, the liquid level sensor 10 starts to operate, when the water level is detected to reach a high water level line, an instruction is sent to the electromagnetic chuck 16 and the submersible pump 7, at the moment, the electromagnetic chuck 16 stops working, and the submersible pump 7 starts to work;

under the buoyancy of the buoy 13, the sliding plate 12 can slide obliquely upwards in the chute 14, and the connecting end of the lower pipe body 71 and the mesh pipe 72 is opened; and the submersible pump 7 performs a drainage operation.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (6)

1. The utility model provides a novel foundation ditch drainage device, includes no sand pipe (1) and the iron sheet section of thick bamboo (2) of setting in no sand pipe (1) buried underground in the foundation ditch, its characterized in that: broken stones are filled in the region, located on the outer wall of the iron leather tube (2), in the sand-free tube (1), a cushion layer (5), a waterproof coiled material (6) and a basic raft (11) are sequentially arranged on the top of the sand-free tube (1) from bottom to top, and the waterproof coiled material (6) can wrap a threaded opening (4) preset in the top end of the iron leather tube (2);

the water inlet structure is characterized in that a plurality of water inlet holes (3) are formed in the surface of the iron sheet cylinder (2), a submersible pump (7) is installed inside the iron sheet cylinder (2), a drain pipe (8) communicated with the outside is arranged at the position of a water inlet in the top end of the submersible pump (7), and a lower pipe body (71) and a mesh pipe (72) are welded at a water outlet in the bottom end of the submersible pump (7);

an electric valve (9) is arranged at the position of the connecting end of the drain pipe (8) and the submersible pump (7), and a liquid level sensor (10) is arranged on the outer surface of the drain pipe (8);

lower connection inner wall between body (71) and mesh pipe (72) is provided with and carries out gliding slide (12), and the top of slide (12) is provided with flotation pontoon (13), electromagnetic chuck (16) are installed with the position department that body (71) corresponds down in slide (12) bottom, electromagnetic chuck (16) and electric valve (9) all are connected through setting up the wire with level sensor (10) between.

2. A novel foundation pit drainage device as claimed in claim 1, wherein: the surface of the waterproof roll (6) is reserved with a plugging port at a position adjacent to the threaded port (4), and the surface of the threaded port (4) is spirally provided with a steel screw cap.

3. A novel foundation pit drainage device as claimed in claim 1, wherein: lower body (71) and mesh pipe (72) formula structure as an organic whole, all are square body structure, and slidingtype between lower body (71) and mesh pipe (72) installs slide (12), slide (12) can block the intercommunication state that lower body (71) and mesh pipe (72) formed when closed, in the coplanar, the angle that slide (12) and water flat line formed is 45-60.

4. A novel foundation pit drainage device as claimed in claim 1, wherein: the inner wall of the lower pipe body (71) is provided with a sliding groove (14) matched with the sliding plate (12), and a stop block (15) is welded at the position where the bottom end of the sliding plate (12) is tightly attached to the inner wall of the lower pipe body (71).

5. A novel foundation pit drainage device as claimed in claim 1, wherein: the electromagnetic chuck (16) is of a strip-shaped plate-shaped structure, and the electromagnetic chuck (16) can perform magnetic adsorption on the bottom end of the sliding plate (12).

6. A novel foundation pit drainage device as claimed in claim 1, wherein: the self-priming pump is installed with the one end of external intercommunication in drain pipe (8), and is connected through setting up the wire between self-priming pump and level sensor (10).

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