AU2021101263A4

AU2021101263A4 - An automatic drainage device for foundation pits with flood prevention function

Info

Publication number: AU2021101263A4
Application number: AU2021101263A
Authority: AU
Inventors: Shijun Chen; Dongwei Li; Jinling Liu; Qingrui Lu; Bo Wu; Masun Zeng
Original assignee: East China University of Science and Technology
Current assignee: East China University of Science and Technology
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-05-06
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses an automatic drainage device for foundation pits with flood prevention function, including a drainage ditch set at the bottom of the pit, a pump controller set at the top of the pit, a drainage pipe, a conveyor belt set at an angle in the drainage ditch, and a collection box. One end of the drainage ditch is provided with a water collection pit connected to the drainage ditch, the water collection pit is provided with a liquid level controller and a submersible pump, both the liquid level controller and the submersible pump are electrically connected to the water pump controller, one end of the drainage pipe is connected to the submersible pump, and the other end of the drainage pipe extends outside the pit, the end of the conveyor belt near the water collection pit is higher than the end away from the water collection pit, and the end near the water collection pit is provided with a collection box, the conveyor belt has a plurality of water seepage holes. There are a plurality of holes in the bottom of the collection box, and the conveyor belt is driven by an electric motor. Through the inclined conveyor belt and the collection box, the construction waste in the pit can be collected into the collection box through the conveyor belt in the drainage ditch, which is convenient for the centralized collection and treatment of construction waste. I/4 A 3 21 Drawing 1 /13 4 214 5 Drawing 2

Description

I/4

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3 21

Drawing 1

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Drawing 2

An automatic drainage device for foundation pits with flood

prevention function

Technical field

The utility model relates to the technical field of water supply and drainage

devices, and more specifically to a foundation pit automatic drainage device with

flood control function.

Background Art

At present, in building construction, foundation pit excavation is an important

construction procedure for modern large buildings. In the construction of foundation

pit project, it is necessary to protect drainage foundation pit from flooding caused by

the flood outside the foundation pit when it encounters the rainy season with high

precipitation and backing up into the foundation pit. As well as with the occurrence of

flood backflow phenomenon, the flood will carry a large amount of construction

waste into the pit. The construction waste falling into the pit and the waste originally

in the pit will accumulate in a corner with the flow of flood water, and a lot of

manpower and material resources are needed for the cleaning of construction waste in

the pit. And for the pit after the rain, there will be silt produced which is not easy to

clear the construction waste.

Currently, a drainage ditch is often installed on one side of the pit to drain the

flood water from the pit. However, with the construction waste in the pit and the flood

water backing up into the pit, the construction waste will enter the drainage ditch with

the flood water and block the drainage ditch, which will lead to the failure of the pit

drainage, and a large amount of water will still be stored in the pit. Long-term water

storage in the pit will affect the foundation of the pit and will also have a serious

adverse effect on the construction cycle.

Therefore, how to provide an automatic pit drainage device that can realize

automatic drainage of flood water in the pit and centralize the collection of

construction waste in the pit is an urgent problem for those skilled in the field to solve.

Contents

In view of this, the utility model provides a kind of automatic drainage device for

foundation pits with flood prevention function, which enables the flood water in the

drainage ditch in the foundation pit to be discharged automatically and timely, and at

the same time can guarantee smooth drainage.

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

technical solutions:

An automatic pit drainage device with flood prevention function including: a

drainage ditch set at the bottom of the pit, a pump controller set at the top of the pit, a

drainage pipe, a conveyor belt set at an angle in the drainage ditch, and a collection

box. One end of the drainage ditch is provided with a water collection pit connected to

the drainage ditch, and the pit is provided with a level controller and a submersible

pump, and both the level controller and the submersible pump are electrically

connected to the pump controller, and one end of the drainage pipe is connected to the

submersible pump, and the other end of the drainage pipe extends to the outside of the

pit. The end of the conveyor belt near the water collection pit is higher than the end

away from the water collection pit, and the end near the water collection pit is

provided with a collection box, the top of the collection box is lower than the height

of the conveyor belt at that end, the conveyor belt has a plurality of water seepage

holes, and the bottom of the collection box is opened with a plurality of through holes,

and the conveyor belt is driven by an electric motor.

Further, it also includes a filter screen provided at the connection of the drain and

the water collection pit, which can be detachably connected to the drain.

Further, the bottom of the drain is set at a certain slope, and the end near the

catchment pit is lower than the end away from the catchment pit.

Further, the drainage pipe is provided with a check valve for preventing

backflow.

And then, the outer cover of the submersible pump is provided with a protective fence, and the bottom of the protective fence is fixedly connected to the bottom of the catchment pit. According to the above technical proposal, compared with the prior art, the utility model publicly provides a foundation pit automatic drainage device with flood control function, which can make the flood in the foundation pit flow to the drainage ditch by arranging a drainage ditch at the bottom of the foundation pit, and is collected into the catchment pit by the drainage ditch, and finally the flood in the catchment pit is discharged out of the foundation pit by the submersible pump in the catchment pit. At the same time, the liquid level height in the catchment pit can be monitored by the liquid level controller, which is equipped with pump start water level and pump stop water level, and the electrical signal is transmitted to the pump controller. The pump controller starts the submersible pump and stops the submersible pump according to the transmission signal of the liquid level controller. By setting the liquid level controller and the pump controller, there is no need for personnel to observe the height of the flood water level in the catchment pit. After it reaches a certain level, the automatic drainage of the device can be realized. Through the setting of the inclined conveyor belt and the collection box, and the water seepage hole arranged on the conveyor belt and the through hole arranged at the bottom of the collection box, the construction waste in the foundation pit can be collected into the collection box through the conveyor belt in the drainage ditch, which facilitates the centralized collection and treatment of construction waste, and prevents the construction waste from being scattered everywhere and causing pollution to the environment.

Brief description of the drawings

In order to more clearly illustrate the technical scheme in the utility model embodiments or prior art, the following will briefly introduce the drawings that need to be used in the embodiment or the prior art description, obviously, the drawings described below are only embodiments of the utility model, and for ordinary technicians in the field, other drawings can be obtained according to the provided drawings without creative work. Drawing 1 the drawing attached is a schematic diagram of the whole structure of the foundation pit automatic drainage device with flood control function provided by the utility model. Drawing 2 the drawing attached is a schematic diagram of the internal structure of the catchment pit provided by the utility model. Drawing 3 the drawings provide a schematic diagram of the internal structure of the local A of the utility model. Drawing 4 provide a schematic diagram of the connection structure of a local conveyor belt, a collection box, a drainage ditch and a catchment pit of the utility model. Wherein: 1 is the foundation pit; 2 is the drainage ditch; 3 is the catchment pit; 4 is the drainage pipe; 5 is the submersible pump; 6 is the check valve; 7 is the protective fence; 8 is the filter net; 9 is the control line; 10 is the pump power line; 11 is the pump controller; 12 is the liquid level controller; 13 is the pump start level line; 14 is the pump stop water level line; 15 conveyor belt; 16 is the collection box.

Details description of the Embodiments

The following will be combined with the drawings in the embodiment of the utility model to clearly and completely describe the technical scheme in the embodiment of the utility model. Obviously, the described embodiments are only a part of the utility model embodiments, not all of them. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work within the scope of protection of the utility model. Referring to drawing 1-4, the embodiment of the utility model discloses a foundation pit automatic drainage device with flood control function. the utility model comprises a drainage ditch 2 arranged at the bottom of the foundation pit 1, a water pump controller 11 arranged at the top of the foundation pit 1, a drainage pipe 4, a conveyor belt 15 tilted in the drainage ditch 2, and a collection box 16. One end of the drainage ditch 2 is provided with a collecting pit 3 connected with the drainage ditch 2. The top level of the catchment pit 3 is higher than the bottom elevation of the foundation pit 1, which prevents Rain Water in the foundation pit 1 from directly flowing into the catchment pit 3 from the upper end of the catchment pit 3. The catchment pit 3 is provided with a liquid level controller 12 and a submersible pump 5, wherein the submersible pump 5 is arranged at the bottom of the catchment pit 3, the liquid level controller 12 is arranged on a side wall of the catchment pit 3, and the level controller 12 is provided with a pump level line 13 and a pump stop level line 14. The pump starting water level line 13 is located above the pump stop water level line 14, the liquid level controller 12 is electrically connected with the pump controller 11 through the control line 9, and the pump controller 11 is electrically connected with the submersible pump 5 through the pump power line 10. The lower end of the drainage pipe 4 is connected with the submersible pump 5, the upper end of the drainage pipe 4 extends to the foundation pit 1, and the end of the conveyor belt 15 is closer to the catchment pit 3 than away from the sump 3. And one end near the collecting pit 3 is provided with a collection box 16, the top of the collection box 16 is lower than the height of the conveyor belt 15, the conveyor belt 15 is provided with a plurality of water seepage holes, the bottom of the collection box 16 is provided with a plurality of through holes, and the conveyor belt 15 is driven by a motor, specifically, one end of the conveyor belt 15 is located in the drain 2, and the width of the conveyor belt 15 is commensurate with the width of the drain 2. One end of the conveyor belt 15 located in the drain 2 is matched with the bottom gap of the drain 2, the other end of the conveyor belt 15 is located above the collection box 16, the collection box 16 is located above the collection pit 3, and the construction waste in the foundation pit 1 enters the drain 2 with Rain Water, and then the construction waste enters the collection box 16 under the action of the conveyor belt 15, and the drain pipe 4 is provided with a check valve 6 for preventing backflow. So that the direction of the flow in the drain pipe 4 can only be discharged in the direction of the arrow in drawing 3.

Particularly, it also includes a filter 8, which arranged at the connection between

the drainage ditch 2 and the catchment pit 3, and is detachably connected with the

drainage ditch 2.Among them, the hole diameter of the filter screen 8 is less than the

diameter of the soil particles to prevent the soil particles from entering the catchment

pit 3 and causing damage to the liquid level controller 12 and the submersible pump 5

in the catchment pit 3.

Particularly, the bottom of the drain 2 is set with a certain slope, and the end near

the catchment pit 3 is lower than the end away from the catchment pit 3. In this

embodiment, the slope is specifically set to 4 0. In other embodiments, the slope can

be set to different angles according to actual needs.

Particularly, the outer cover of the submersible pump 5 is provided with a

protective fence 7, and the bottom of the protective fence 7 is fixedly connected with

the bottom of the catchment pit 3, where the use of the protective purse fence 7

conforms to the safe use regulations of the submersible pump 5.

Working principle: the flood in the foundation pit flows into the drainage ditch

and then flows into the catchment pit through the filter. When the flood exceeds the

pump start level, the liquid level controller transmits the electrical signal to the pump

controller, and the pump controller controls the submersible pump to start working.

The flood in the catchment pit is discharged, and when the liquid level in the

catchment pit falls to the pump stop level, the liquid level controller transmits the

electrical signal to the pump controller. The pump controller controls the submersible

pump to stop working, and at the same time, the construction waste in the foundation

pit enters the drainage ditch with the flood and enters the collection box under the

action of the conveyor belt.

Each embodiment in this specification is described in a progressive manner, each

embodiment focuses on the differences from other embodiments, and the same similar

parts of each embodiment can refer to each other. For the device disclosed by the

embodiment, because it corresponds to the method disclosed by the embodiment, the

description is relatively simple, and the relevant points can be found in the description

of the method section.

The above description of the disclosed embodiment enables professional and technical personnel in the field to implement or use the utility model. A variety of modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Thus, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein. It will be understood that the term "comprise" and any of its derivatives (eg comprises, comprising) as used in this specification is to be taken to be inclusive of features to which it refers, and is not meant to exclude the presence of any additional features unless otherwise stated or implied. The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that such prior art forms part of the common general knowledge.

Claims

1. A pit automatic drainage device with flood prevention function, characterized in that it comprises: a drainage ditch (2) set at the bottom of the pit (1), a pump controller (11) set at the top of the pit (1), a drainage pipe (4), a conveyor belt (15) set at an angle in the drainage ditch (2), and a collection box (16), said drainage ditch (2) being provided at one end with a said drainage ditch (2) is provided with a catchment pit (3) connected to said drainage ditch (2), said catchment pit (3) is provided with a level controller (12) and a submersible pump (5), said level controller (12) and said submersible pump (5) are electrically connected to said pump controller (11), one end of said drainage pipe (4) is connected to said submersible pump (5) and its other end extends outside the pit (1), said conveyor belt (15) near the end of the catchment pit (3) is higher than the end away from the catchment pit (3) and the end near the catchment pit (3) is provided with said collection box (16), the top of said collection box (16) is lower than the height of said conveyor belt (15) at that end, said conveyor belt (15) has a plurality of water seepage holes, said collection box (16) has a plurality of through holes opened at the bottom, said conveyor belt (15) is driven by an electric motor.

2. A pit automatic drainage device with flood prevention function according to claim 1, characterized in that it also includes a filter (8), the filter (8) is provided at the connection of the drain (2) and the catchment pit (3), and the filter (8) is removably connected to the drain (2).

3. According to claim 1, a pit automatic drainage device with flood control function, characterized in that the bottom of the drainage ditch (2) is set at a certain slope, and the end near the water collection pit (3) is lower than the end far from the water collection pit (3).

4. An automatic pit drainage device with flood prevention function according to claim 1, characterized in that the drainage pipe (4) is provided with a check valve (6) for preventing backflow.

5. According to claim 1, an automatic pit drainage device with flood prevention

function, characterized in that the external cover of the submersible pump (5) is

provided with a protective fence (7), and the bottom of the protective fence (7) is

fixedly connected to the bottom of the water collection pit (3).

2021101263 1/2

Drawing 1

Drawing 2

2021101263 2/2

Drawing 3

Drawing 4