Dewatering and drainage system for deep foundation pit

Abstract

The utility model discloses a deep foundation pit dewatering and drainage system, and relates to the field of construction site drainage, the deep foundation pit dewatering and drainage system comprises a drainage hopper, a water tank is formed in the drainage hopper, a drainage pipe is fixed on one side of the drainage hopper, the drainage pipe is communicated with the water tank, a first filter screen is fixed on the drainage hopper, the first filter screen corresponds to the water tank, and a second filter screen is fixed on the drainage hopper. A second filter screen is fixed to the filter screen, a loosening mechanism is arranged on the drainage hopper, and a stirring mechanism is arranged in the drainage hopper. The loosening mechanism moves on the drainage hopper, the loosening mechanism cleans away silt blocking the first filter screen, meanwhile, the loosening mechanism drives the stirring mechanism, the stirring mechanism mixes silt sinking to the bottom in a water tank of the drainage hopper with accumulated water, and therefore the situation that the filtered silt blocks the first filter screen, and normal passing of the accumulated water is affected can be reduced; and the drainage efficiency is not high.

Description

Technical Field

[0001] This application relates to the field of construction site drainage, and in particular to deep foundation pit dewatering systems. Background Technology

[0002] Dewatering of foundation pits refers to the dewatering work carried out when the groundwater level is higher than the bottom of the excavation pit and groundwater will continuously seep into the pit. In order to ensure that the foundation pit can be constructed under dry conditions and to prevent slope instability, quicksand in the foundation, pit bottom heave, piping at the bottom of the pit and a decrease in the bearing capacity of the foundation.

[0003] The most common way to remove water from the foundation pit is to use a drainage pump. The muddy water in the foundation pit is usually mixed with mud, sand and other debris. When using a drainage pump, if the silt and other debris in the muddy water in the foundation pit are not filtered and cleaned in time, the silt and other debris will eventually clog the drainage pump, thus affecting the drainage speed of the foundation pit.

[0004] To reduce the blockage of pipes by silt and other debris, a filter screen is usually fixed at the water inlet of the pipe to block the silt and debris. However, in actual use, when using the filter screen to filter silt, the silt may directly adhere to the filter screen and block the mesh, resulting in low efficiency for water to pass through the filter screen and affecting the drainage efficiency. Utility Model Content

[0005] The purpose of this application is to address the problem mentioned in the background art that when using a filter screen to filter silt, silt may directly adhere to the filter screen, clogging the mesh and causing low efficiency in water flow through the filter screen, thus affecting drainage efficiency. This application provides a deep foundation pit dewatering system.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A deep foundation pit dewatering system includes a drainage hopper with a water trough. A drainage pipe is fixed to one side of the drainage hopper and connected to the water trough. A filter screen is fixed on the drainage hopper and corresponds to the water trough. A filter screen is fixed on the filter screen. A loosening mechanism is provided on the drainage hopper. A stirring mechanism is provided in the drainage hopper.

[0008] By adopting the above technical solution, the loosening mechanism moves on the drainage hopper to clean away the mud and sand clogging the filter screen. At the same time, the loosening mechanism drives the stirring mechanism, which mixes the mud and sand that has settled in the drainage hopper with the accumulated water. This reduces the possibility of the filtered mud and sand clogging the filter screen, affecting the normal passage of accumulated water, and causing low drainage efficiency.

[0009] Furthermore, the loosening mechanism includes a support frame mounted on the drain hopper, the support frame being located in the water tank, a plurality of loosening rods fixed on the support frame, the plurality of loosening rods corresponding to a mesh opening of the filter screen, a support assembly being provided between the support frame and the drain hopper, and a reciprocating assembly being provided on one side of the drain hopper.

[0010] By adopting the above technical solution, the reciprocating component drives the support frame, and under the support of the support component, the loosening rod clears the mesh of the filter screen, thereby reducing the possibility of mud and sand clogging the filter screen and affecting the normal passage of water.

[0011] Furthermore, the support assembly includes two sliding blocks symmetrically fixed on the support frame, and the drainage hopper has a sliding groove corresponding to the sliding block. The sliding block is located in the sliding groove and is slidably connected to the drainage hopper.

[0012] By adopting the above technical solution, the sliding block moves in the sliding groove, and the sliding block drives the support frame, thereby enabling the support frame to drive the loosening rod to move.

[0013] Furthermore, the reciprocating assembly includes two reciprocating rods symmetrically arranged on the drainage hopper. One end of the reciprocating rod is fixedly connected to a sliding block. The end of the reciprocating rod away from the sliding block is rotatably connected to a reciprocating rod 2. A rotating disk is provided at the end of the reciprocating rod 2 away from the reciprocating rod 1. The rotating disk is eccentrically rotatably connected to one end of the reciprocating rod 2. A connecting rod is fixed between the two reciprocating rods 2.

[0014] By adopting the above technical solution, the rotating disk drives the second reciprocating rod, the second reciprocating rod drives the first reciprocating rod, and the first reciprocating rod drives the sliding block, thereby making it convenient for the first reciprocating rod to drive the sliding block to move.

[0015] Furthermore, protective limiting tubes are fixed on both sides of the drainage hopper, and the reciprocating rod is located in the protective limiting tube, with one end of the reciprocating rod penetrating through the protective limiting tube.

[0016] By adopting the above technical solution, the reciprocating rod is restricted by the protective limiting tube, allowing it to move back and forth in only one direction. At the same time, the protective limiting tube protects the sliding groove, thus enabling the reciprocating rod to move back and forth in one direction and reducing the possibility of water entering the drainage hopper from the sliding groove.

[0017] Furthermore, a lifting frame is fixed to one side of the drainage hopper, and a drive motor is fixed on the lifting frame. The output end of the drive motor is rotatably connected to the rotating disk.

[0018] By adopting the above technical solution, the lifting frame supports the drive motor, which in turn drives the rotating disk to rotate. This reduces the possibility of water accumulation coming into contact with the drive motor and affecting the rotation of the rotating disk.

[0019] Furthermore, the stirring mechanism includes a support ring disposed on the drain hopper, the support ring being located in the water tank and rotatably connected to the drain hopper, a plurality of circumferentially distributed stirring rods being fixed on the support ring, and a rotating component being disposed in the middle of the support ring.

[0020] By adopting the above technical solution, the rotating component drives the stirring rod and the support ring to rotate during the reciprocating movement of the support frame, thereby allowing fine mud and sand to mix with the accumulated water and be sucked away, reducing the possibility of fine mud and sand accumulating in the drainage hopper and clogging the drainage hopper.

[0021] Furthermore, the rotating assembly includes a threaded ring disposed in the middle of the support ring, a plurality of stirring rods being fixedly connected to the threaded ring, and a threaded rod being threadedly connected to the threaded ring, one end of which is fixedly connected to the support frame.

[0022] By adopting the above technical solution, the support frame drives the threaded rod, which moves back and forth on the threaded ring, allowing the threaded ring to rotate back and forth under the support of the support ring and the stirring rod, thereby facilitating the rotation of the support ring and the stirring rod.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. In this application, during the process of filtering sediment through filter screen one, the drive motor on the lifting frame drives the rotating disk, which in turn drives the reciprocating rod two. The two reciprocating rod two are kept synchronized by the connecting rod. Then, the reciprocating rod two drives the reciprocating rod one. The reciprocating rod one moves back and forth under the restriction of the protective limiting tube. The reciprocating rod one drives the sliding block, which moves the two sliding blocks in the sliding groove. The sliding block drives the support frame, which drives the loosening rod. The loosening rod pushes open the sediment blocking the mesh of filter screen one, thereby reducing the possibility of sediment clogging filter screen one, affecting the normal passage of water, and causing low drainage efficiency.

[0025] 2. In this application, during the reciprocating movement of the support frame, the support frame drives the threaded rod, which reciprocates on the threaded ring. The threaded ring rotates back and forth under the support of the support ring and the stirring rod. The threaded ring drives the stirring rod and the support ring, which stir up the fine mud and sand entering the drainage hopper. This mixes the fine mud and sand with the accumulated water and allows it to be sucked away, thus reducing the possibility of fine mud and sand accumulating in the drainage hopper and clogging it. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the deep foundation pit dewatering system in this application;

[0027] Figure 2 This is a schematic diagram of the first internal structure of the deep foundation pit dewatering system in this application;

[0028] Figure 3 This is a schematic diagram of the second internal structure of the deep foundation pit dewatering system in this application;

[0029] Figure 4 This application Figure 3 Enlarged diagram of point A in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Drain hopper; 2. Drain pipe; 3. Filter screen one; 4. Filter screen two; 5. Loosening mechanism; 51. Loosening rod; 52. Support frame; 53. Support assembly; 531. Sliding groove; 532. Sliding block; 54. Reciprocating assembly; 541. Reciprocating rod one; 542. Reciprocating rod two; 543. Rotating disk; 544. Connecting rod; 545. Protective limiting tube; 546. Lifting frame; 547. Drive motor; 6. Stirring mechanism; 61. Support ring; 62. Stirring rod; 63. Rotating assembly; 631. Threaded rod; 632. Threaded ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0033] This application discloses a deep foundation pit dewatering system.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The deep foundation pit dewatering system includes a drainage hopper 1, a water trough on the drainage hopper 1, a drainage pipe 2 fixed on one side of the drainage hopper 1, the drainage pipe 2 being connected to the water trough, a filter screen 3 fixed on the drainage hopper 1, the filter screen 3 being corresponding to the water trough, a filter screen 4 fixed on the filter screen, a loosening mechanism 5 on the drainage hopper 1, and a stirring mechanism 6 in the drainage hopper 1.

[0035] When using this deep foundation pit drainage device, first place the drainage hopper 1 at the bottom of the deep foundation pit. Then, dig a pit at the bottom of the deep foundation pit large enough to hold the drainage hopper 1, ensuring the height of the drainage hopper 1 is level with the bottom of the deep foundation pit. Next, connect the drainage pipe 2 to the external pumping pipe. When water accumulates in the deep foundation pit, the water flows into the trough on the drainage hopper 1. During the flow of water to the drainage hopper 1, filter screen 2 4 filters out larger sand and gravel, and filter screen 3 filters out smaller pieces of mud and sand in the water. Finally, the water is pumped out by the external pumping pipe. The loosening mechanism 5 moves on the drainage hopper 1, removing the mud and sand clogging the filter screen 3. Simultaneously, the loosening mechanism 5 drives the stirring mechanism 6, which mixes the mud and sand settled in the drainage hopper 1 with the accumulated water, and then pumps it away. By using filter screen 3 and filter screen 4 to filter the sand and mud in the accumulated water, the movement of the loosening mechanism 5 on filter screen 3 reduces the amount of filtered mud and sand clogging the filter screen 3, thus preventing the normal passage of water and potentially causing low drainage efficiency.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The loosening mechanism 5 includes a support frame 52 installed on the drainage hopper 1. The support frame 52 is located in the water tank. Several loosening rods 51 are fixed on the support frame 52. The several loosening rods 51 correspond to the mesh of the filter screen 3. A support component 53 is provided between the support frame 52 and the drainage hopper 1. A reciprocating component 54 is provided on one side of the drainage hopper 1.

[0037] In addition, the support assembly 53 includes two sliding blocks 532 symmetrically fixed on the support frame 52. The drainage hopper 1 has a sliding groove 531 corresponding to the sliding block 532. The sliding block 532 is located in the sliding groove 531 and is slidably connected to the drainage hopper 1.

[0038] Furthermore, the reciprocating assembly 54 includes two reciprocating rods 541 symmetrically arranged on the drainage hopper 1. One end of the reciprocating rod 541 is fixedly connected to the sliding block 532. The end of the reciprocating rod 541 away from the sliding block 532 is rotatably connected to a reciprocating rod 542. A rotating disk 543 is provided at the end of the reciprocating rod 542 away from the reciprocating rod 541. The rotating disk 543 is eccentrically rotatably connected to one end of the reciprocating rod 542. A connecting rod 544 is fixed between the two reciprocating rods 542.

[0039] Furthermore, protective limiting pipes 545 are fixed on both sides of the drainage hopper 1, and the reciprocating rod 541 is located in the protective limiting pipe 545, with one end of the reciprocating rod 541 penetrating through the protective limiting pipe 545.

[0040] Furthermore, a lifting frame 546 is fixed on one side of the drainage hopper 1, and a drive motor 547 is fixed on the lifting frame 546. The output end of the drive motor 547 is rotatably connected to the rotating disk 543.

[0041] During the filtration process of silt and sand by filter screen 3, the drive motor 547 on the lifting frame 546 drives the rotating disk 543, which in turn drives the reciprocating rod 542. The connecting rod 544 keeps the two reciprocating rods 542 synchronized. Then, the reciprocating rod 542 drives the reciprocating rod 541. The reciprocating rod 541 moves back and forth under the restriction of the protective limiting tube 545. The reciprocating rod 541 drives the sliding block 532, which moves in the sliding groove 531. The sliding block 532 drives the support frame 52, which in turn drives the loosening rod 51. The loosening rod 51 pushes away the silt and sand clogging the mesh of filter screen 3. By having the filter screen 3 filter the silt and sand while the loosening rod 51 moves back and forth to push away the silt and sand clogging the mesh of filter screen 3, the possibility of silt and sand clogging filter screen 3 and affecting the normal passage of water and causing low drainage efficiency can be reduced.

[0042] Reference Figure 2 , Figure 3 and Figure 4 The stirring mechanism 6 includes a support ring 61 set on the drain hopper 1. The support ring 61 is located in the water tank and is rotatably connected to the drain hopper 1. Several circumferentially distributed stirring rods 62 are fixed on the support ring 61, and a rotating component 63 is set in the middle of the support ring 61.

[0043] In addition, the rotating assembly 63 includes a threaded ring 632 disposed in the middle of the support ring 61, a plurality of stirring rods 62 fixedly connected to the threaded ring 632, and a threaded rod 631 threadedly connected to the threaded ring 632, one end of the threaded rod 631 being fixedly connected to the support frame 52.

[0044] During the reciprocating movement of the support frame 52, the support frame 52 drives the threaded rod 631, which reciprocates on the threaded ring 632. This causes the threaded ring 632 to rotate back and forth under the support of the support ring 61 and the stirring rod 62. The threaded ring 632 drives the stirring rod 62 and the support ring 61, which stir up the fine mud and sand that enters the drainage hopper 1. This mixes the fine mud and sand with the accumulated water and allows it to be sucked away. By moving the support frame 52 back and forth while simultaneously causing the support ring 61 and the stirring rod 62 to rotate back and forth, the fine mud and sand can be mixed with the accumulated water and sucked away, reducing the possibility of fine mud and sand accumulating in the drainage hopper 1 and clogging it.

[0045] Working Principle: When this deep foundation pit drainage device is needed, first, place the drainage hopper 1 at the bottom of the deep foundation pit. Then, dig a pit at the bottom of the deep foundation pit large enough to hold the drainage hopper 1, ensuring the height of the drainage hopper 1 is level with the bottom of the deep foundation pit. Next, connect the drainage pipe 2 to the external pumping pipe. When water accumulates in the deep foundation pit, the water flows into the water trough on the drainage hopper 1. During the flow of water to the drainage hopper 1, filter screen 2 4 filters larger sand and gravel, while filter screen 1 3 filters smaller pieces of mud and sand in the water. The water is then pumped out by the external pumping pipe. During the filtration of mud and sand by filter screen 1 3, the drive motor 547 on the lifting frame 546 drives the rotating disk 543, which in turn drives the reciprocating rod 2 542. The connecting rod 544 keeps the two reciprocating rods 2 542 in place. While maintaining synchronization, reciprocating rod 2 542 drives reciprocating rod 1 541. Reciprocating rod 1 541 moves back and forth under the restriction of protective limiting tube 545. Reciprocating rod 1 541 drives sliding block 532, allowing the two sliding blocks 532 to move in sliding groove 531. The sliding blocks 532 drive support frame 52, and support frame 52 drives loosening rod 51, allowing loosening rod 51 to push away the mud and sand blocking the mesh of filter screen 3. At the same time, support frame 52 drives threaded rod 631, and threaded rod 631 moves back and forth on threaded ring 632, allowing threaded ring 632 to rotate back and forth under the support of support ring 61 and stirring rod 62. Threaded ring 632 drives stirring rod 62 and support ring 61, and stirring rod 62 and support ring 61 stir up the fine mud and sand that enters drainage hopper 1, allowing the fine mud and sand to mix with the accumulated water and be sucked away.

Claims

1. A deep foundation pit dewatering system, comprising a drainage hopper (1), characterized in that: A water trough is provided on the drainage hopper (1). A drain pipe (2) is fixed on one side of the drainage hopper (1). The drain pipe (2) is connected to the water trough. A filter screen (3) is fixed on the drainage hopper (1). The filter screen (3) is corresponding to the water trough. A filter screen (4) is fixed on the filter screen. A loosening mechanism (5) is provided on the drainage hopper (1). A stirring mechanism (6) is provided in the drainage hopper (1).

2. The deep foundation pit dewatering system according to claim 1, characterized in that: The loosening mechanism (5) includes a support frame (52) set on the drainage hopper (1), the support frame (52) is located in the water tank, a plurality of loosening rods (51) are fixed on the support frame (52), the plurality of loosening rods (51) correspond to the mesh of the filter screen (3), a support component (53) is provided between the support frame (52) and the drainage hopper (1), and a reciprocating component (54) is provided on one side of the drainage hopper (1).

3. The deep foundation pit dewatering system according to claim 2, characterized in that: The support assembly (53) includes two sliding blocks (532) symmetrically fixed on the support frame (52). The drainage bucket (1) is provided with a sliding groove (531) corresponding to the sliding block (532). The sliding block (532) is located in the sliding groove (531) and is slidably connected to the drainage bucket (1).

4. The deep foundation pit dewatering system according to claim 3, characterized in that: The reciprocating assembly (54) includes two reciprocating rods (541) symmetrically arranged on the drainage hopper (1). One end of the reciprocating rod (541) is fixedly connected to the sliding block (532). The end of the reciprocating rod (541) away from the sliding block (532) is rotatably connected to the reciprocating rod (542). The end of the reciprocating rod (542) away from the reciprocating rod (541) is provided with a rotating disk (543). The rotating disk (543) is eccentrically rotatably connected to one end of the reciprocating rod (542). A connecting rod (544) is fixed between the two reciprocating rods (542).

5. The deep foundation pit dewatering system according to claim 4, characterized in that: Both sides of the drainage hopper (1) are fixed with protective limiting tubes (545), and the reciprocating rod (541) is located in the protective limiting tube (545). One end of the reciprocating rod (541) passes through the protective limiting tube (545).

6. The deep foundation pit dewatering system according to claim 4, characterized in that: A lifting frame (546) is fixed on one side of the drainage hopper (1), and a drive motor (547) is fixed on the lifting frame (546). The output end of the drive motor (547) is rotatably connected to the rotating disk (543).

7. The deep foundation pit dewatering system according to claim 2, characterized in that: The stirring mechanism (6) includes a support ring (61) set on the drain hopper (1). The support ring (61) is located in the water tank and is rotatably connected to the drain hopper (1). Several circumferentially distributed stirring rods (62) are fixed on the support ring (61). A rotating component (63) is set in the middle of the support ring (61).

8. The deep foundation pit dewatering system according to claim 7, characterized in that: The rotating assembly (63) includes a threaded ring (632) disposed in the middle of the support ring (61), and several stirring rods (62) are fixedly connected to the threaded ring (632). A threaded rod (631) is threadedly connected to the threaded ring (632), and one end of the threaded rod (631) is fixedly connected to the support frame (52).

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