CN214657159U

CN214657159U - Automatic dewatering device for pit points of foundation pit

Info

Publication number: CN214657159U
Application number: CN202120422271.1U
Authority: CN
Inventors: 张明亮; 刘维; 曾治国; 胡顺森; 左尚宗; 邹红; 胡凤翔
Original assignee: Hunan No2 Engineering Co ltd
Current assignee: Hunan No2 Engineering Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-09
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a foundation pit well point automatic dewatering device, relates to the technical field of foundation pit dewatering, including dewatering well and controller, the dewatering well bottom is equipped with the protection bucket, and the inside immersible pump and pressure sensor of being equipped with of protection bucket, the upper end of immersible pump is connected with drain pipe and immersible pump wire, and pressure sensor's upper end is connected with the sensor wire, and immersible pump wire and the sensor wire other end all are connected on the controller, the protection bucket contains upper cover and filter screen, the utility model discloses the principle is simple, and convenient operation can protect the immersible pump and control ground water level effectively, designs the protection bucket that has increased the immersible pump, prevents to damage the immersible pump, has designed the vibrator, improves the stability of operation, and the maintenance cycle is long; the water level in the dewatering well is detected through the pressure sensor, so that the water level in the foundation pit well point is kept in a certain range, the condition that the submersible pump idles is avoided, and a large amount of manpower, material resources and financial resources are saved.

Description

Automatic dewatering device for pit points of foundation pit

Technical Field

The utility model relates to a foundation ditch dewatering technical field specifically is an automatic dewatering device of foundation ditch well point.

Background

In the construction process of the building underground engineering, because underground confined water exists, when the underground water level is higher, underground water continuously permeates into a pit, and the bottom of the pit easily causes adverse effects such as sudden surge, uplift, piping and the like, therefore, in order to guarantee the drying operation in the foundation pit and ensure the safety construction of the foundation pit, the foundation pit has to be subjected to precipitation before excavation, the underground water level is strictly controlled in the precipitation process, the precipitation is insufficient, the foundation pit is still in a dangerous state, and the safety of surrounding buildings can be seriously influenced by excessive precipitation.

The automatic dewatering system is basically required during dewatering and is roughly divided into two types, the first type is that water level measurement and a submersible pump are respectively arranged, a water level measuring hole is arranged beside a dewatering well, and the work of the submersible pump is controlled through the measured water level, in the dewatering process, the measured water level is not the well point water level, the influences of factors such as the distance between the well point and the water level measuring hole, the well point water pumping radius and the like are also required to be considered, the principle is complex, and the error is large; the second type is that water level measurement and immersible pump all set up in the precipitation well, its advantage is the well point water level of measured water level, and the theory of operation is simpler, but the structure of current second type automatic precipitation system is complicated, and the installation step is difficult or not be applicable to well point precipitation before the excavation.

In the prior art, the displacement of a submersible pump for precipitation and the water output of a well point cannot be completely synchronous, when the displacement of the submersible pump is too large, water in the well point is dried up, so that the water pump is in an idle running state, and the submersible pump is easy to damage. Therefore, how to realize automatic precipitation according to the water level change in the well point is a technical problem to be solved in the field.

Therefore, through continuous exploration and research, the automatic dewatering device for the pit points of the foundation pit is provided, and is simple in structure and good in stabilizing effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a foundation ditch well point automatic dewatering device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic dewatering device of foundation ditch well point, includes dewatering well and controller, is equipped with the protection bucket bottom the dewatering well, inside immersible pump and the pressure sensor of being equipped with of protection bucket, the upper end of immersible pump is connected with drain pipe and immersible pump wire, pressure sensor's upper end is connected with the sensor wire, immersible pump wire and sensor wire other end are all connected on the controller, the protection bucket contains upper cover and filter screen, and the filter screen can filter grit etc. protects the immersible pump and is damaged increase of service life.

Preferably: inside still installing of protective barrel has inside support, all welds all around on the filter screen internal surface of support, can play the effect of support, prevents flat, the middle fixed mounting of inside support has the platform, and platform and inside support material all are the stainless steel, the vibrator is installed to the platform upper end, and it is after accomplishing drainage to increase the vibrator, and the downthehole gravel of filter screen is likely to be stopped up, and long-time accumulation can influence the drainage, so after accomplishing drainage, the vibrator can work and produce the ultrasonic wave, shakes downthehole gravel, keeps the permeability of filter screen.

Further: the upper end of the vibrator is connected with a vibrator wire, the other end of the vibrator wire is also connected to the controller, and the vibrator is a waterproof vibrator.

Preferably: the material of protection bucket is the stainless steel, the filter screen is 75 with the contained angle of horizontal plane, has certain inclination and in the vibration the grit very easy can fall down.

Further: the controller internally comprises a control switch and a power switch, is controlled by a microcomputer, is simple to operate, can complete operation only by a plurality of buttons, and has high automation degree.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the principle is simple, and convenient operation can protect the immersible pump and control ground water level effectively, designs the protection bucket who has increased the immersible pump, prevents that debris in the dewatering well from damaging the immersible pump, has still designed the vibrator inside the protection bucket for the grit on the vibration filter screen, improves the stability of operation, and the maintenance cycle is long; detect out the water level in the precipitation well through pressure sensor to send pressure signal to the control switch in the controller, control switch judges whether to open immersible pump switch according to pressure signal and carries out precipitation operation, makes the water level in the foundation ditch well point keep in certain within range, has avoided the condition that the immersible pump idled, does not need special messenger's nurse simultaneously, has saved a large amount of manpowers, material resources and financial resources.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a protective barrel;

fig. 3 is a schematic view of the protective barrel without the upper cover.

In the figure: 1. dewatering well, 2, protective barrel, 3, drain pipe, 4, submersible pump, 5, pressure sensor, 6, sensor lead, 7, vibrator lead, 8, submersible pump lead, 9, controller, 10, internal support, 11, platform, 12, vibrator, 201, upper cover, 202 and filter screen.

Detailed Description

The present invention will be described below based on embodiments with reference to the attached drawings in the embodiments of the present invention, but it should be noted that the present invention is not limited to these embodiments, and some specific details are described in detail below in the detailed description of the present invention, however, those skilled in the art can fully understand the present invention for the parts not described in detail.

Furthermore, those skilled in the art will appreciate that the drawings are provided for purposes of illustrating the objects, features, and advantages of the invention and are not necessarily drawn to scale.

Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".

Referring to fig. 1-3, the present invention provides a technical solution: including precipitation well 1 and

controller

9, 1 bottom of precipitation well is equipped with

protection bucket

2, 2 inside immersible pumps 4 and the pressure sensor 5 of being equipped with of protection bucket, the upper end of immersible pump 4 is connected with drain pipe 3 and immersible pump wire 8, pressure sensor 5's upper end is connected with sensor wire 6, immersible pump wire 8 and the 6 other ends of sensor wire are all connected on controller 9, protection bucket 2 contains upper cover 201 and filter screen 202.

An inner support 10 is further mounted inside the protection barrel 2, a platform 11 is fixedly mounted in the middle of the inner support 10, and a vibrator 12 is mounted at the upper end of the platform 11.

The upper end of the vibrator 12 is connected with a vibrator wire 7, the other end of the vibrator wire 7 is also connected to the controller 9, and the vibrator 12 is a waterproof vibrator.

The protection barrel 2 is made of stainless steel, and an included angle between the filter screen 202 and the horizontal plane is 75 degrees.

The controller 9 comprises a control switch and a power switch, and a microcomputer.

The working principle is as follows: firstly, excavating a foundation pit dewatering well, after the excavation is finished, paving gravels with a certain depth at the bottom of a well point, after the submersible pump 4, the vibrator 12 and the pressure sensor 5 in the protective barrel 2 are installed, then connecting a sensor lead 6, a vibrator lead 7 and a submersible pump lead 8 to a controller 9, connecting a drain pipe 3 by the submersible pump 4, then placing the protective barrel 2 in the dewatering well, when the water level in the well point rises to generate certain water pressure, sensing the change of the water pressure by the pressure sensor 5, outputting a pressure change signal, receiving the signal by a control switch in the controller 9 outside the well point, when the pressure value exceeds a certain value, starting a power supply of the submersible pump by the control switch to pump water, when the water level is lowered, outputting a pressure value is lowered, receiving the pressure change signal by the control switch, closing a power supply switch of the submersible pump, avoiding the submersible pump 4 from idling, and after the drainage is finished, the controller 9 starts the vibrator 12 to carry out ultrasonic vibration on the protective barrel 2, sand in the hole in the filter screen 202 is discharged, the next drainage is not affected, the maintenance period is long, and the electricity consumption of the submersible pump 4 is indirectly saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a foundation ditch well point automatic dewatering device, includes dewatering well (1) and controller (9), its characterized in that: precipitation well (1) bottom is equipped with protection bucket (2), inside immersible pump (4) and pressure sensor (5) of being equipped with of protection bucket (2), the upper end of immersible pump (4) is connected with drain pipe (3) and immersible pump wire (8), the upper end of pressure sensor (5) is connected with sensor wire (6), immersible pump wire (8) and sensor wire (6) other end are all connected on controller (9), protection bucket (2) contain upper cover (201) and filter screen (202).

2. The automatic dewatering device for the pit well point of the foundation pit according to claim 1, wherein: inside still install inside support (10) in protection bucket (2), the centre fixed mounting of inside support (10) has platform (11), vibrator (12) are installed to platform (11) upper end.

3. The automatic dewatering device for the pit well point as claimed in claim 2, wherein: the vibrator (12) upper end is connected with vibrator wire (7), the vibrator wire (7) other end also is connected on controller (9), vibrator (12) are waterproof type vibrator.

4. The automatic dewatering device for the pit well point of the foundation pit according to claim 1, wherein: the protection barrel (2) is made of stainless steel, and an included angle between the filter screen (202) and the horizontal plane is 75 degrees.

5. The automatic dewatering device for the pit well point of the foundation pit according to claim 1, wherein: the controller (9) comprises a control switch and a power switch, and a microcomputer.