CN217327642U

CN217327642U - Water pump protection device for open pit dewatering and draining

Info

Publication number: CN217327642U
Application number: CN202221133985.1U
Authority: CN
Inventors: 潘有旺; 邸永健; 魏伟; 吴爱宏; 杨金龙
Original assignee: Gansu Jiantou Geotechnical Technology Co ltd
Current assignee: Gansu Jiantou Geotechnical Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-30
Anticipated expiration: 2032-05-12

Abstract

The utility model belongs to the technical field of the drainage that falls, a water pump protector for open pit falls drainage is disclosed to solve the technical problem that exists in the open pit drainage of prior art, this water pump protector has seted up the overflow hole including setting up the protection bucket in the water pump outside on the protection bucket, and the protection bucket outside is the precoat, is provided with the sand clamp stone between precoat and the sump pit. The utility model discloses a water pump protector is through setting up protection bucket, precoat and sand inclusion stone in the water pump outside. The water pump in open pit dewatering and drainage construction can be effectively prevented from being buried by silt, the damage rate of the water pump is greatly reduced, the water level of a construction site is effectively reduced, the stability of dewatering construction is improved, and the construction cost is saved. The utility model discloses simple manufacture, it is fast, the cost is cheap, green, repeatedly usable also disposable when necessary, and the filter material can be gathered materials on the spot. The device is flexible and changeable, the height of the device can be adjusted according to the depth of the water collecting pit, and the size and the number of the water pumps can be adjusted according to the water yield.

Description

Water pump protection device for open pit dewatering and draining

Technical Field

The utility model relates to a fall drainage technology field, concretely relates to a water pump protector for open pit falls drainage.

Background

With the rapid development of city construction, super high-rise building projects are emerging continuously, the space for city development is gradually changed to underground space development, and the scale of the foundation pit is also developed towards the direction of 'deep and big'. The dry environment operation is the prerequisite of building foundation structure construction in the foundation ditch, however most of deep basal pits's ground water level all is than higher, the water yield is abundant, precipitation difficulty selects an economy, efficient precipitation construction scheme will directly influence the construction cost of construction project, nevertheless it is very troublesome to face partial ground precipitation in traditional foundation ditch precipitation construction, it is big mainly to embody the foundation ditch place, the stratum is complicated, precipitation well effective precipitation scope is little, precipitation well construction cycle is long, precipitation effect is poor, application scope is little. If the water level can not be timely reduced below the safety range, not only can the potential safety hazard of the foundation pit occur, but also the construction period can be delayed, and the construction cost is increased.

In order to shorten the precipitation construction period and improve the precipitation efficiency, the open pit for collecting water can be adopted for precipitation, but when the water pump is directly put into the water collecting pit for precipitation, the water pump is easily buried by silt, so that the damage rate of the water pump is high, and the precipitation stability is poor. The cost of the project is increased, meanwhile, because the water cannot be timely lowered, the water level rises, the safety of the foundation and the stability of the structure are affected, the risks of increasing the water content of the soil body, suddenly surging the base, damaging the underground pipeline and the like exist, and the technical problem cannot be solved in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can solve the water pump and damage, improve the water pump protector that is used for the open pit to fall the drainage of falling drainage stability in order to solve the technical problem that exists in the open pit drainage of prior art.

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

the utility model provides a water pump protector for rising pit falls drainage, includes the protection bucket that sets up in the water pump outside, has seted up the overflow hole on the protection bucket, and the protection bucket outside is the precoat, is provided with the sand inclusion stone between precoat and the sump pit.

Furthermore, the protective barrel is wrapped with 2-3 layers of dense meshes.

Furthermore, the top of the protective barrel is detachably provided with a top cover.

Further, the bottom of the protection barrel is provided with a cushion layer, and the water pump is installed on the cushion layer.

Furthermore, the filter material layer is a cone-shaped filter material layer, the thickness of the filter material layer is 200-1000mm, and the filter material layer is a pebble layer with the diameter of 20-40 mm.

Furthermore, a liquid level alarm is arranged on the top cover and is interlocked with the water pump.

Furthermore, the protection barrel is formed by splicing a plurality of protection barrels, and the height of the protection barrel is 90mm-270 mm.

Further, the interval between the overflow holes is 5 cm-10 cm, and the diameter of the overflow holes is 10 mm.

Further, the water pump is a plurality of.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a water pump protector is through setting up protection bucket, precoat and sand inclusion stone in the water pump outside. The water pump in open pit dewatering and drainage construction can be effectively prevented from being buried by silt, the damage rate of the water pump is greatly reduced, the water level of a construction site is effectively reduced, the stability of dewatering construction is improved, and the construction cost is saved. The utility model discloses simple manufacture, it is fast, the cost is cheap, green, repeatedly usable, also disposable when necessary, the filter material can be gathered materials locally. The device is flexible and changeable, the height of the device can be adjusted according to the depth of the water collecting pit, and the size and the number of the water pumps can be adjusted according to the water yield. The water permeability is good, and precipitation efficiency is high, for water pump damage rate greatly reduced when the sump pit is directly put into to the water pump, precipitation is fast, practices thrift the precipitation time, provides the plenty of time for follow-up engineering construction. The water-saving and water-saving device is wide in application range, and is suitable for open pit drainage of elevator shafts, water collecting pits and the like of various sizes in various stratums such as pebble beds, red sand rock beds and the like.

The utility model discloses set up the top cap and can prevent that muddy water from getting into the protection bucket, through setting up the bed course, can make protection barrel head portion form and deposit the face, further protect the water pump.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic structural view of the protection barrel of the present invention.

The reference numerals have the following meanings: 1. a water pump; 2. a water outlet pipe; 3. a protective barrel; 4. a filter material layer; 5. sand inclusion stone; 6. a sump; 7. a dense mesh net; 8. an overflow aperture; 9. a top cover; 10. a cushion layer; 11. a liquid level alarm.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a water pump protection device for open pit dewatering and drainage comprises a protection barrel 3 arranged outside a water pump 1, overflow holes 8 are formed in the protection barrel 3, the interval between the overflow holes 8 is 5 cm-10 cm, and the diameter of each overflow hole 8 is 10 mm. The protective barrel 3 is wrapped with 2-3 layers of dense meshes 7, the protective barrel 3 can be formed by splicing a plurality of protective barrels, and the height of the protective barrel 3 is 90-270 mm. The outer side of the protective barrel 3 is provided with a filter material layer 4, the filter material layer 4 is a conical filter material layer, the thickness of the filter material layer 4 is 200-1000mm, the filter material layer is a pebble layer with the diameter of 20-40mm, and sand inclusion stones 5 are arranged between the filter material layer 4 and the water collecting pit 6.

When the pebble filter material is manufactured, firstly, an iron barrel is processed on site or in a processing area to serve as a protection barrel 3, overflow holes 8 with the diameter of 10mm are arranged on the side face of the complete iron barrel at the interval of 5-10cm (according to the water yield), the height of the protection barrel 3 can be overlapped by 2-3 on-site sump depths, the height range of each protection barrel 3 is 90-270 mm, then the processed (opened and lengthened) protection barrel 3 is wrapped by 2-3 layers of dense meshes 7 (the specification is 500 meshes and 1000 meshes), and the dense meshes are tightly bound by iron wires to be firm, so that impurities which cannot be filtered by the pebble filter material layer 4 are filtered, and the water pump is prevented from being damaged due to blockage. The iron bucket that will ligature fine mesh 7 after the component processing is accomplished is laid to the sump pit that has excavated in, then fills 200 and gives good filter material (diameter 20-40mm cobble) of 1000mm thick (toper) gradation in the protection bucket 3 outside, and the purpose of filling the filter material is the impurity of primary filtration groundwater, fills the natural ground elevation with the sand inclusion stone that field or outside transported at last with the sump pit remaining position, prevents to cause the collapse or personnel to hurt.

The water pump protection device is arranged and then the water pump 1 is arranged (1-3 various water pumps 1 with the specification of 1.1-7.5kw are arranged in the protection barrel 3 according to the field water yield), the water pump 1 is electrified to pump water after being arranged, and part of the water pump 1 in the device can be switched on or off according to the water yield in the water pumping process, so that the water pump 1 is prevented from being damaged due to insufficient water absorption or incapable of effectively reducing water due to overlarge water yield.

In this embodiment, the top cover 9 may be mounted on the top of the protection barrel 3 through a hinge, and the bottom of the protection barrel 3 may be provided with a cushion layer 10. The top cover 9 is provided with a liquid level alarm 11, the liquid level alarm 11 can be interlocked with the water pump 1 through a controller to control the on-off of the water pump 1, and a protective cover can be additionally arranged outside an alarm box of the liquid level alarm 11.

Claims

1. A water pump protection device for open pit dewatering and draining comprises a protection barrel (3) arranged on the outer side of a water pump (1), overflow holes (8) are formed in the protection barrel (3), a filter material layer (4) is arranged on the outer side of the protection barrel (3), and sand inclusion stones (5) are arranged between the filter material layer (4) and a water collecting pit (6).

2. The water pump protection device for open pit dewatering and drainage according to claim 1, characterized in that: the protective barrel (3) is wrapped with 2-3 layers of dense meshes (7).

3. The water pump protection device for open pit dewatering and drainage according to claim 2, characterized in that: the top of the protection barrel (3) is detachably provided with a top cover (9).

4. The water pump protection device for open pit dewatering and drainage according to claim 3, characterized in that: the bottom of protection bucket (3) is equipped with bed course (10), water pump (1) is installed on bed course (10).

5. The water pump protection device for open pit dewatering and drainage according to claim 1, characterized in that: the filter material layer (4) is a conical filter material layer, the thickness of the filter material layer (4) is 200-1000mm, and the filter material layer (4) is a pebble layer with the diameter of 20-40 mm.

6. The water pump protection device for open pit dewatering and drainage according to claim 4, characterized in that: and a liquid level alarm (11) is arranged on the top cover (9), and the liquid level alarm (11) is interlocked with the water pump (1).

7. The water pump protection device for open pit dewatering and drainage according to claim 1, characterized in that: the protection barrel (3) is formed by splicing a plurality of protection barrels, and the height of each protection barrel (3) is 90-270 mm.

8. The water pump protection device for open pit dewatering and drainage according to claim 4, characterized in that: the distance between the overflow holes (8) is 5 cm-10 cm, and the diameter of the overflow holes (8) is 10 mm.

9. The water pump protection device for open pit dewatering and drainage according to claim 1, characterized in that: the number of the water pumps (1) is multiple.