A deep foundation pit dewatering device

Abstract

The utility model discloses a deep foundation pit precipitation device belongs to building construction technical field, including crossbeam, the crossbeam is provided with the through groove, the upper end left side fixed setting of crossbeam has first telescopic link, set first telescopic link through the upper end of crossbeam, and first telescopic link drives second telescopic link to move left and right, then second telescopic link drives the rope to move up and down, make the filter screen reach left and right and up and down automatic regulation's effect, through the roller drive crossbeam moves back and forth, then through third telescopic link drive bottom block moves up and down to the effect that the filter screen drives water pump reaches back and forth and left and right and up and down regulation and spacing, place in the inside of filter screen through water pump simultaneously, filter the water that enters the inside of water pump through filter screen, avoid the silt to enter the inside of water pump, and support the filter screen through the setting of boss, avoid the filter screen to sink into the inside of silt.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a deep foundation pit dewatering device. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plan dimensions. Before excavation, an excavation plan should be determined based on geological and hydrological data and the condition of nearby buildings, and waterproofing and drainage work should be carried out. For shallow excavations, slope protection can be used to stabilize the soil slope, and the slope should be determined according to relevant construction regulations. For deeper excavations or those near buildings, excavation pit wall support methods, shotcrete wall protection methods, and even methods such as diaphragm walls and interlocking column-type bored piles can be used to prevent the outer soil layer from collapsing. For excavations without the influence of nearby buildings, the wellpoint method can be used to lower the groundwater level, and open excavation with slope protection can be adopted. In cold regions, natural freezing methods can be used for excavation, etc.

[0003] For example, CN117513381A discloses a sealing device for a deep foundation pit dewatering well, including a base; a fixing frame is bolted to the top of the base; a winch is fixed to the top of the fixing frame; a steel wire rope is fixed to the winch; a first fixing seat is fixed to the bottom end of the steel wire rope; a telescopic rod is fixed to the bottom of the first fixing seat; a second fixing seat is fixed to the bottom end of the telescopic rod; both the first and second fixing seats have cavities inside. Based on the above arrangement, a fixing plate and a sealing plate are formed into a ring-shaped pipe, which fits against the inside of the dewatering well, thus blocking groundwater and facilitating subsequent control of water level reduction, thereby facilitating the subsequent sealing process. It also provides support for soft soil layers, reducing the occurrence of quicksand.

[0004] As can be seen from the above-mentioned publicly available solutions, the current dewatering device for foundation pits needs to be moved to the corresponding position when dewatering different locations inside the foundation pit. However, adjusting the dewatering device and the limiting dewatering device are both quite troublesome and cannot achieve the effect of fully automatic adjustment. At the same time, the water pump is easily blocked by the mud inside the foundation pit during dewatering, which can easily damage the water pump and affect its performance. Summary of the Invention

[0005] The purpose of this invention is to provide a deep foundation pit dewatering device to solve the problems of adjusting the dewatering device and protecting the water pump.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deep foundation pit dewatering device, comprising a crossbeam, the crossbeam having a through groove, a first telescopic rod fixedly mounted on the upper left side of the crossbeam, a second telescopic rod fixedly mounted on the right side of the first telescopic rod, a lifting block fixedly mounted on the lower end of the second telescopic rod, top rods fixedly mounted on the left and right sides of the lower end of the crossbeam, a base plate fixedly mounted on the lower end of the top rod, a third telescopic rod fixedly mounted on the base plate, a base block fixedly mounted on the lower end of the third telescopic rod, multiple support frames fixedly mounted on the lower end of the base plate, rollers rotatably mounted on the support frames, ground level at the lower end of the rollers, a foundation pit at the lower end of the ground, a lifting rope fixedly mounted on the lower end of the lifting block, and a lifting handle fixedly mounted on the lower end of the lifting rope. A filter screen is fixedly installed at the lower end of the lifting handle. A first telescopic rod is installed at the upper end of the crossbeam. The first telescopic rod drives the second telescopic rod to move left and right, and then the second telescopic rod drives the lifting rope to move up and down, so that the filter screen can achieve automatic adjustment in left and right and up and down. The crossbeam is moved back and forth by rollers, and then the bottom block is moved up and down by a third telescopic rod, so as to facilitate the adjustment of the crossbeam's back and forth movement and limit the crossbeam. Thus, the filter screen drives the water pump to achieve the effects of front-to-back, left-to-right, up-to-down adjustment and limit. At the same time, the water pump is placed inside the filter screen, and the filter screen filters the water entering the water pump to prevent sediment from entering the water pump. Moreover, the filter screen is supported by the protrusion to prevent the filter screen from sinking into the sediment. The protrusion is installed with pointed piles to increase the stability of the limit.

[0007] Preferably, the second telescopic rod slides through the interior of the through groove, and the second telescopic rod is slidably disposed at the upper end of the crossbeam.

[0008] Preferably, the lifting block is disposed at the lower end of the crossbeam, the base plate is disposed at the lower end of the crossbeam, and reinforcing blocks are fixedly disposed on the front and rear sides of the upper end of the base plate, and the reinforcing blocks are fixedly disposed on the front and rear sides of the lower end of the top rod.

[0009] Preferably, the rollers are located at the lower end of the base plate, and the crossbeams are located at the upper end of the ground.

[0010] Preferably, the foundation pit is located at the lower end of the crossbeam, and the filter screen is located at the lower end of the interior of the foundation pit.

[0011] Preferably, a water pump is placed inside the filter screen, and a water pipe is fixedly installed on the left side of the water pump. The water pump is located at the lower end of the pit.

[0012] Preferably, a boss is fixedly provided at the lower end of the filter screen, and a plurality of pointed posts are fixedly provided at the lower end of the boss.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a first telescopic rod at the upper end of a crossbeam. The first telescopic rod drives a second telescopic rod to move left and right, and then the second telescopic rod drives a suspension rope to move up and down, enabling the filter screen to achieve automatic adjustment in left and right and up and down. The crossbeam is moved back and forth by rollers, and then the bottom block is moved up and down by a third telescopic rod, thus facilitating the adjustment and limiting of the crossbeam's movement. This allows the filter screen to drive the water pump to achieve the effects of adjustment and limiting in front, back, left, right, up and down. This invention places a water pump inside a filter screen, which filters the water entering the pump, preventing sediment from entering. The protrusions support the filter screen, preventing it from sinking into the sediment, and the pointed stakes enhance the stability of the protrusions during installation. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a partial sectional view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the crossbeam of this utility model; Figure 4 This is a bottom view of the base plate of this utility model; Figure 5 This is a top view of the base plate of this utility model.

[0015] Explanation of the labels in the diagram: 1. Crossbeam, 2. Through groove, 3. First telescopic rod, 4. Second telescopic rod, 5. Lifting block, 6. Top rod, 7. Base plate, 8. Reinforcing block, 9. Third telescopic rod, 10. Base block, 11. Support frame, 12. Roller, 121. Ground, 13. Foundation pit, 14. Lifting rope, 15. Lifting handle, 16. Filter screen, 17. Water pump, 18. Water pipe, 19. Boss, 20. Pointed pile. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figure 1-5The diagram shows a deep foundation pit dewatering device, including a crossbeam 1 with a through groove 2. A first telescopic rod 3 is fixedly installed on the upper left side of the crossbeam 1, a second telescopic rod 4 is fixedly installed on the right side of the first telescopic rod 3, a lifting block 5 is fixedly installed at the lower end of the second telescopic rod 4, and top rods 6 are fixedly installed on the lower left and right sides of the crossbeam 1, respectively. A base plate 7 is fixedly installed at the lower end of the top rod 6, and a third telescopic rod 9 is fixedly installed on the base plate 7. The first telescopic rod 3, the second telescopic rod 4, and the third telescopic rod 9 are model YNT-03. The plugs of the first telescopic rod 3, the second telescopic rod 4, and the third telescopic rod 9 are connected to an external power source, which is existing technology. The lower end of the third telescopic rod 9 is fixedly provided with a base block 10. The lower end of the base plate 7 is fixedly provided with multiple support frames 11. The support frames 11 are rotatably provided with rollers 12. The lower end of the rollers 12 is provided with a ground 121. The lower end of the ground 121 is provided with a foundation pit 13. The lower end of the lifting block 5 is fixedly provided with a lifting rope 14. The lower end of the lifting rope 14 is fixedly provided with a lifting handle 15. The lower end of the lifting handle 15 is fixedly provided with a filter screen 16.

[0018] To facilitate adjustment of the position of the filter screen 16, the second telescopic rod 4 slides through the inside of the through groove 2. The second telescopic rod 4 is slidably set at the upper end of the crossbeam 1. The hanging block 5 is set at the lower end of the crossbeam 1. The bottom plate 7 is set at the lower end of the crossbeam 1. The upper end of the bottom plate 7 is fixedly set with reinforcing blocks 8 on the front and rear sides respectively. The reinforcing blocks 8 are fixedly set at the lower end of the top rod 6 on the front and rear sides respectively. The roller 12 is set at the lower end of the bottom plate 7. The crossbeam 1 is set at the upper end of the ground 121. The foundation pit 13 is set at the lower end of the crossbeam 1. The filter screen 16 is set at the lower end of the foundation pit 13. The filter screen 16 is filled with a water pump 17. A water pipe 18 is fixedly set on the left side of the water pump 17. The water pump 17 is set at the lower end of the foundation pit 13. The lower end of the filter screen 16 is fixedly set with a boss 19. The lower end of the boss 19 is fixedly set with multiple pointed piles 20.

[0019] In this embodiment, a first telescopic rod 3 is installed at the upper end of the crossbeam 1. The first telescopic rod 3 drives the second telescopic rod 4 to move left and right, and then the second telescopic rod 4 drives the suspension rope 14 to move up and down, so that the filter screen 16 achieves the effect of automatic adjustment in left and right and up and down. The roller 12 drives the crossbeam 1 to move back and forth, and then the third telescopic rod 9 drives the bottom block 10 to move up and down, so as to facilitate the adjustment of the crossbeam 1's back and forth movement and limit the crossbeam 1. Thus, the filter screen 16 drives the water pump 17 to achieve the effect of front-back, left-right and up-down adjustment and limit. At the same time, the water pump 17 is placed inside the filter screen 16, and the filter screen 16 filters the water entering the water pump 17, preventing mud and sand from entering the water pump 17. Moreover, the protrusion 19 is set to support the filter screen 16 to prevent the filter screen from sinking into the mud and sand. The pointed pile 20 is set to increase the stability of the protrusion 19 installation limit.

[0020] Move the dewatering device to the upper end of the foundation pit 13, then activate the third telescopic rod 9. The third telescopic rod 9 drives the bottom block 10 to move downwards, and then the bottom block 10 moves downwards to support the roller 12, making the roller 12 suspended in the air. Then the bottom block 10 limits and fixes the crossbeam 1. Then activate the second telescopic rod 4, which drives the filter screen 16 to move downwards, and then drives the water pump 17 to move downwards. Then activate the first telescopic rod 3, which drives the second telescopic rod 4 to move left and right. When it moves to the appropriate position, the filter screen 16 moves to the position where dewatering is needed. Then activate the water pump 17 to pump water out of the foundation pit 13. The filter screen 16 filters the water entering the water pump 17, preventing mud and sand from entering the water pump 17. The protrusion 19 supports the filter screen 16, preventing it from sinking into the mud and sand. The pointed pile 20 increases the stability of the protrusion 19 installation limit.

[0021] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A deep foundation pit dewatering device, comprising a crossbeam (1), characterized in that: The crossbeam (1) is provided with a through groove (2). A first telescopic rod (3) is fixedly installed on the upper left side of the crossbeam (1). A second telescopic rod (4) is fixedly installed on the right side of the first telescopic rod (3). A lifting block (5) is fixedly installed at the lower end of the second telescopic rod (4). Top rods (6) are fixedly installed on the left and right sides of the lower end of the crossbeam (1). A base plate (7) is fixedly installed at the lower end of the top rod (6). A third telescopic rod (9) is fixedly installed on the base plate (7). A base block (10) is fixedly installed at the lower end. Multiple support frames (11) are fixedly installed at the lower end of the base plate (7). Rollers (12) are rotatably installed on the support frames (11). Ground (121) is installed at the lower end of the rollers (12). A pit (13) is installed at the lower end of the ground (121). A lifting rope (14) is fixedly installed at the lower end of the lifting block (5). A lifting handle (15) is fixedly installed at the lower end of the lifting rope (14). A filter screen (16) is fixedly installed at the lower end of the lifting handle (15).

2. The deep foundation pit dewatering device according to claim 1, characterized in that: The second telescopic rod (4) slides through the inside of the through groove (2) and is slidably set at the upper end of the crossbeam (1).

3. The deep foundation pit dewatering device according to claim 1, characterized in that: The lifting block (5) is located at the lower end of the crossbeam (1), the base plate (7) is located at the lower end of the crossbeam (1), and the upper end of the base plate (7) is fixedly provided with reinforcing blocks (8) on the front and rear sides respectively. The reinforcing blocks (8) are fixedly provided on the lower end of the top rod (6) on the front and rear sides respectively.

4. The deep foundation pit dewatering device according to claim 1, characterized in that: The roller (12) is located at the lower end of the base plate (7), and the crossbeam (1) is located at the upper end of the ground (121).

5. A deep foundation pit dewatering device according to claim 1, characterized in that: The foundation pit (13) is located at the lower end of the crossbeam (1), and the filter screen (16) is located at the lower end of the interior of the foundation pit (13).

6. The deep foundation pit dewatering device according to claim 1, characterized in that: A water pump (17) is placed inside the filter screen (16), and a water pipe (18) is fixedly installed on the left side of the water pump (17). The water pump (17) is located at the lower end of the pit (13).

7. A deep foundation pit dewatering device according to claim 1, characterized in that: The lower end of the filter screen (16) is fixedly provided with a boss (19), and the lower end of the boss (19) is fixedly provided with a plurality of pointed stakes (20).

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