Precipitation device for finished sump

By using the finished sump dewatering device, the problem of difficulty and high cost in dewatering the subsided parts of the local structure of the large-scale foundation pit is solved, convenient construction and efficient dewatering are achieved, and the influence of construction tools and debris on dewatering is avoided.

CN223458835UActive Publication Date: 2025-10-21中建五局第三建设有限公司
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Patent Information

Application Number
CN202422974594.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-10-21
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

In large-scale foundation pit projects, it is difficult to dewater the subsidence areas of local structures, the dewatering effect is poor, the on-site construction efficiency is low, the cost is increased, and the existing dewatering devices need to be manufactured on-site, which makes construction inconvenient.

Method used

A finished sump dewatering device is used, including an earth pit, a sump body, a dewatering pump, a pumping well and a sealing cover. The sump body is made of steel plate, the dewatering pump is placed at the bottom of the pumping well, the dewatering hole is closed by a rubber pad and a sealing cover, and the pumping pipe passes through the rubber pad to the outside, realizing convenient installation and closure.

Benefits of technology

It improves construction efficiency, reduces the difficulty and cost of dewatering around the foundation pit, ensures the normal progress of the dewatering process, and avoids the entry of construction tools and debris that affects dewatering.

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Abstract

The utility model relates to the technical field of sump dewatering, in particular to a finished sump dewatering device which comprises a pit, a sump body is installed in an inner cavity of the pit, grouting holes are formed in the four corners of the bottom of the inner cavity of the sump body, and a dewatering hole is formed in the right side of the top of the sump body. Positioning sliding shells are fixedly connected to the two sides of an inner cavity of the dewatering hole, a sealing cover plate is placed in the inner cavity of the dewatering hole, the sealing cover plate comprises a cover plate body, and positioning sliding plates are welded to the two sides of the cover plate body. A dewatering pump is placed at the bottom of a pumping well, a drainage ditch is dug to enable the interior of the pit to be communicated with the pumping well, the sump body is installed on the pit, the dewatering pump is powered on to pump water in the pumping well, and the sump body is made of finished steel plates and does not need to be manufactured on site by personnel, so that construction is more convenient and faster; meanwhile, the dewatering difficulty and cost around the foundation pit can be greatly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water collecting pit dewatering technical field, concretely to a finished product water collecting pit dewatering device. BACKGROUND

[0002] Water collecting pit dewatering method refers to setting drainage ditch and water collecting pit along the periphery of each layer pit bottom in the process of layer by layer excavation of foundation pit, and pumping away the accumulated water in water collecting pit by water pump until the end of drainage process when the foundation pit begins backfilling, and its advantages include convenient construction, simple equipment and wide application.

[0003] In the overall engineering dewatering design of large-area foundation pit, it needs to be dewatered to below 500mm of the bottom of foundation pit, but in actual engineering practice, problems such as great difficulty in dewatering, poor dewatering effect, and multiplied dewatering cost occur at the local structure sinking, and most of the current dewatering devices are constructed and manufactured on site, which leads to low construction efficiency and affects dewatering efficiency due to poor construction conditions on site, in order to solve the above technical problems, therefore, we design a finished product water collecting pit dewatering device. UTILITY MODEL CONTENT

[0004] The utility model discloses a finished product water collecting pit dewatering device, has the advantages of more convenient construction, better dewatering effect, and greatly reducing the dewatering difficulty and cost of the periphery of foundation pit, solves the problems of time-consuming and laborious on-site construction, poor dewatering effect, greatly increased dewatering cost, and increased dewatering depth leading to the disease of peripheral structures.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a finished product water collecting pit dewatering device, including the soil pit, the inner chamber of soil pit is installed with water collecting pit body, the four corners of the bottom of the inner chamber of water collecting pit body are all set up with grouting hole, the right side of the top of water collecting pit body is set up with dewatering hole, both sides of the inner chamber of dewatering hole are all fixedly connected with positioning slide shell, the inner chamber of dewatering hole is placed with sealing cover plate, the sealing cover plate includes cover plate body, both sides of cover plate body are all welded with positioning slide plate, the inner chamber of cover plate body is placed with rubber soft pad, the right side of the top of soil pit is set up with water well, the inner chamber of water well is placed with dewatering pump, the top of dewatering pump is fixedly connected with water pumping pipe.

[0006] Preferably, the water collecting pit body includes an upper steel plate, the bottom of the upper steel plate is glued with a cushion layer, and the bottom of the cushion layer is glued with a waterproof roll.

[0007] Preferably, the two sides of the top of the cover plate body are both set up with a pull groove, and the top of the water pumping pipe penetrates to the top of the rubber soft pad.

[0008] Preferably, a through hole is set up in the middle of the top of the cover plate body, and a through opening is set up in the top of the rubber soft pad.

[0009] Preferably, the top of the rubber cushion is provided with a fixing ring, the top of the fixing ring is connected with a positioning bolt in a movable mode, and the bottom of the positioning bolt is connected with the cover plate body in a threaded mode.

[0010] Preferably, the bottom of the soil pit inner cavity is provided with a drainage ditch, and the right side of the drainage ditch is communicated with the water well.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1, the water pump is placed to the bottom of the water well, the drainage ditch is excavated to make the inside of the soil pit communicated with the water well, the water collecting pit body is installed to the soil pit, the water pump is electrified to work to pump out the water in the water well, the water collecting pit body is made of finished steel plate, so that the personnel on site is not needed to make, so that the construction is more convenient, and the difficulty and cost of the foundation pit periphery dewatering can be greatly reduced.

[0013] 2, the water pumping pipe is passed through the dewatering hole, is worn to the outside through the through opening in the middle of the rubber cushion, the cover plate body is placed in the dewatering hole and is rotated counterclockwise to make the two positioning sliding plates rotate to the two positioning sliding shells to position the cover plate body, the sealing cover plate is arranged to seal the dewatering hole, so that the construction tools and sundries are avoided from falling into the water well to affect the normal dewatering. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the axonometric view of the utility model structure;

[0015] Figure 2 It is the bottom view of the utility model new structure;

[0016] Figure 3 It is the explosion view of the utility model local structure;

[0017] Figure 4 It is the cross-sectional axonometric view of the water collecting pit body of the utility model;

[0018] Figure 5 It is the top view axonometric view of the water collecting pit body and the sealing cover plate of the utility model.

[0019] In the drawing: 1, soil pit;2, drainage ditch;3, water pump;4, water collecting pit body;5, water pumping pipe;6, sealing cover plate;7, water well;8, grouting hole;9, dewatering hole;10, positioning sliding shell;11, positioning sliding plate;12, draw groove;13, positioning bolt;14, fixing ring;15, rubber cushion;16, cover plate body;17, waterproof roll material;18, cushion layer;19, upper layer steel plate. DETAILED DESCRIPTION

[0020] Please refer to Figures 1-5The utility model provides a finished product sump precipitation device, including the earth pit 1, the inner chamber of earth pit 1 is installed with sump body 4, grouting hole 8 is set up in the four corners of the inner chamber bottom of sump body 4, through setting up grouting hole 8, can carry out grouting and make the device and the natural ground after excavation close tightly, the right side of sump body 4 top is provided with precipitation hole 9, and the both sides of the inner chamber of precipitation hole 9 are fixedly connected with positioning slide shell 10, and the inner chamber of precipitation hole 9 is placed with sealing cover plate 6, sealing cover plate 6 includes cover plate body 16, and the both sides of cover plate body 16 are welded with positioning slide plate 11, and the inner chamber of cover plate body 16 is placed with rubber soft pad 15, through setting up rubber soft pad 15, can be conveniently passed through by water pipe 5 according to its own elasticity, and the right side of earth pit 1 top is provided with pumping well 7, and the inner chamber of pumping well 7 is placed with precipitation pump 3, and the top of precipitation pump 3 is fixedly connected with water pipe 5,

[0021] Please see Figure 4 Sump body 4 includes upper steel sheet 19, and the bottom of upper steel sheet 19 is glued with cushion layer 18, and the bottom of cushion layer 18 is glued with waterproof roll material 17, through setting up waterproof roll material 17, the present precipitation device can have good waterproof performance,

[0022] Please see Figure 1 And Figure 3 The both sides of cover plate body 16 top are provided with pull groove 12, through setting up pull groove 12, the cover plate body 16 can be conveniently rotated and taken, and the top of water pipe 5 penetrates to the top of rubber soft pad 15,

[0023] Please see Figure 3 The top of cover plate body 16 is provided with through hole, and the top of rubber soft pad 15 is provided with through opening, through setting up through opening, water pipe 5 can conveniently pass through rubber soft pad 15,

[0024] Please see Figure 3 The top of rubber soft pad 15 is provided with fixing ring 14, through setting up fixing ring 14, rubber soft pad 15 can be conveniently pressed and fixed, and the top of fixing ring 14 is penetrated and movably connected with positioning bolt 13, and the bottom of positioning bolt 13 penetrates rubber soft pad 15 and is screw-connected with cover plate body 16,

[0025] Please see Figure 2 The bottom of the inner chamber of earth pit 1 is provided with drainage ditch 2, and the right side of drainage ditch 2 is communicated with pumping well 7.

[0026] In use, in combination with the overall dewatering of the large-area soil pit 1, first, the water collecting pit is sunk to 500 mm below the design bottom level, then the local structure level is sunk, and the water collecting pit is installed on the soil pit 1. Before installation, the cover plate body 16 is rotated clockwise, the positioning slides 11 on both sides of the cover plate body 16 are turned out of the positioning slide shells 10 on both sides, and the sealing cover plate 6 is removed from the dewatering hole 9. When the water collecting pit body 4 is installed, the water pumping pipe 5 at the top of the dewatering pump 3 is passed through the dewatering hole 9, then passed through the through opening in the middle of the rubber soft pad 15 to the outside, then the cover plate body 16 is placed in the dewatering hole 9 and rotated counterclockwise to make the positioning slides 11 on both sides turned into the positioning slide shells 10 on both sides to position the cover plate body 16. The sealing cover plate 6 can be used to cover the dewatering hole 9, so that construction tools and other sundries are not dropped into the water pumping well 7 during dewatering, and the normal dewatering is not affected. Finally, the dewatering pump 3 is powered on to pump out the water in the water pumping well 7. Since the water collecting pit body 4 is a finished steel plate, it does not need to be made on site, so the construction is more convenient, and the difficulty and cost of dewatering around the foundation pit are greatly reduced.

[0027] In summary: the finished water collecting pit dewatering device solves the problems of time-consuming and laborious on-site construction, poor dewatering effect, significantly increased dewatering cost, and increased dewatering depth leading to damage to surrounding structures through the cooperation of the soil pit 1, the drainage ditch 2, the dewatering pump 3, the water collecting pit body 4, the water pumping pipe 5, the sealing cover plate 6, the water pumping well 7, the grouting hole 8, and the dewatering hole 9.

Claims

1. A finished sump dewatering device comprising a pit (1), characterized in that: The inner cavity of the soil pit (1) is provided with a sump body (4), the four corners of the inner cavity bottom of the sump body (4) are provided with grouting holes (8), the right side of the top of the sump body (4) is provided with a dewatering hole (9), both sides of the inner cavity of the dewatering hole (9) are fixedly connected with positioning slide shells (10), the inner cavity of the dewatering hole (9) is placed with a sealing cover plate (6), the sealing cover plate (6) comprises a cover plate body (16), both sides of the cover plate body (16) are welded with positioning slide plates (11), the inner cavity of the cover plate body (16) is placed with a rubber soft pad (15), the right side of the top of the soil pit (1) is provided with a water well (7), the inner cavity of the water well (7) is placed with a dewatering pump (3), the top of the dewatering pump (3) is fixedly connected with a water pumping pipe (5).

2. A finished sump dewatering device according to claim 1, characterized in that: The sump body (4) comprises an upper steel plate (19), the bottom of the upper steel plate (19) is glued with a cushion layer (18), and the bottom of the cushion layer (18) is glued with a waterproof roll material (17).

3. A finished sump dewatering device according to claim 1, characterized in that: The two sides of the top of the cover plate body (16) are provided with pull grooves (12), and the top of the water pumping pipe (5) penetrates to the top of the rubber soft pad (15).

4. The finished product sump dewatering device of claim 1, wherein: The top of the cover plate body (16) is provided with a through hole, and the top of the rubber soft pad (15) is provided with a through opening.

5. A finished sump dewatering device according to claim 1, wherein: The top of the rubber soft pad (15) is provided with a fixing ring (14), the top of the fixing ring (14) is movably connected with a positioning bolt (13) penetratingly, and the bottom of the positioning bolt (13) penetrates the rubber soft pad (15) and is threadedly connected with the cover plate body (16).

6. A finished sump dewatering device according to claim 1, wherein: The bottom of the inner cavity of the soil pit (1) is provided with a drainage ditch (2), and the right side of the drainage ditch (2) is communicated with the water well (7).