A foundation pit dewatering structure for foundation pit excavation

Abstract

The utility model relates to a foundation pit dewatering structure belongs to foundation pit excavation technical field, concretely is a kind of foundation pit dewatering structure for foundation pit excavation, including bottom plate, the bottom plate is fixedly connected with treatment box, the filter plate is fixedly connected in the treatment box, the bottom plate is fixedly connected with two mud pumps, the output end of one of the mud pump is communicated with the inside of treatment box, and the input end of another mud pump is communicated with the inside of treatment box;In the utility model, the grit etc. in groundwater can be filtered by water inlet assembly, so that the internal element of the structure can be avoided to cause abrasion, so as to improve the service life of element in the structure, the soil particles in groundwater can be filtered down by the filter plate in the inside of treatment box, then lifted to the upper end of treatment box by lifting assembly, convenient for user to clean, then groundwater can be discharged by mud pump, complete the function of precipitation.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit excavation technology, specifically a foundation pit dewatering structure for foundation pit excavation. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. It is a temporary excavation project carried out in construction engineering for the construction of underground structures. Due to groundwater, water usually accumulates in the excavation pit during construction. Groundwater seepage softens the soil, reduces the soil shear strength, and can lead to slope slippage or pit wall collapse. At the same time, when the groundwater level is too high, the water pressure exerts a buoyancy force on the bottom slab of the excavation pit, which may cause the bottom slab to bulge and the structure to float. Furthermore, groundwater seepage can lead to mud accumulation and equipment failure. Therefore, it is necessary to dewater the excavation pit during the construction process.

[0003] However, most existing dewatering structures directly pump out the groundwater in the foundation pit. But the groundwater usually contains soil and gravel from the foundation pit. These impurities can cause wear and tear on components such as pumps in the dewatering structure, thus reducing its service life.

[0004] Based on this, the present invention proposes a foundation pit dewatering structure for foundation pit excavation. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a foundation pit dewatering structure for foundation pit excavation. The water inlet component can prevent impurities from entering the interior of the structure and causing wear to the components. The combination of the filter plate and the lifting component inside the treatment box facilitates the user to clean impurities.

[0006] The technical solution to achieve the purpose of this utility model is: a foundation pit dewatering structure for foundation pit excavation, including a base plate, a treatment box fixedly connected to the base plate, a filter plate fixedly connected inside the treatment box, and two mud pumps fixedly connected to the base plate, the output end of one of the mud pumps being connected to the inside of the treatment box, and the input end of the other mud pump being connected to the inside of the treatment box; and further comprising:

[0007] The water inlet assembly includes a connecting pipe, a connecting tube, a water inlet hose, a water inlet cylinder, water inlet holes, and a filter screen. The connecting pipe is fixedly connected to the input end of the mud pump, the connecting tube is fixedly connected to the connecting pipe, the water inlet hose is fixedly connected to the connecting tube, the water inlet cylinder is fixedly connected to the water inlet hose, multiple water inlet holes are opened on the water inlet cylinder, the filter screen is fixedly connected inside the water inlet cylinder, and a lifting assembly is provided inside the treatment tank.

[0008] Preferably, the lifting assembly includes a mounting ring and guide rods, the mounting ring being fixedly connected inside the processing box, and the four guide rods being fixedly connected to the mounting ring.

[0009] Preferably, the lifting assembly further includes a control motor and a lifting threaded rod. The two control motors are fixedly connected to the base plate, and the two lifting threaded rods are respectively fixedly connected to the output shafts of the two control motors. The two lifting threaded rods are rotatably connected to the mounting ring.

[0010] Preferably, the lifting assembly further includes a lifting plate, which is threadedly connected to two lifting threaded rods and slidably connected to four guide rods.

[0011] Preferably, four casters are fixedly connected to the base plate.

[0012] Preferably, the processing box is provided with a box cover, the box cover including a fixed cover, a movable cover, a latch and a handle, the fixed cover is fixedly connected to the processing box, the movable cover is hinged to the fixed cover, the latch is provided on the movable cover, and the handle is fixedly connected to the movable cover.

[0013] Compared with existing technologies, the significant advantages of this invention are:

[0014] In this invention, the water inlet component can filter out larger impurities such as sand and gravel in the groundwater, thereby preventing them from entering the interior of the structure and causing wear on the components, thus improving the service life of the components in the structure. The filter plate inside the treatment box can filter out soil particles in the groundwater, which are then lifted to the top of the treatment box by the lifting component for easy cleaning by the user. Finally, the groundwater can be discharged by the mud pump, thus completing the function of dewatering. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the water inlet component in this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the lifting component in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate; 2. Casters; 3. Processing box; 4. Filter plate; 5. Box cover; 501. Fixed cover; 502. Movable cover; 503. Lock; 504. Handle; 6. Lifting assembly; 601. Mounting ring; 602. Control motor; 603. Lifting threaded rod; 604. Guide rod; 605. Lifting plate; 7. Mud pump; 8. Water inlet assembly; 801. Connecting pipe; 802. Connecting pipe; 803. Water inlet hose; 804. Water inlet cylinder; 805. Water inlet hole; 806. Filter screen. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved foundation pit dewatering structure for foundation pit excavation. The technical solution of this utility model is as follows:

[0024] like Figures 1-4 As shown, a foundation pit dewatering structure for foundation pit excavation includes a base plate 1, a treatment box 3 fixedly connected to the base plate 1, a filter plate 4 fixedly connected inside the treatment box 3, and two mud pumps 7 fixed to the base plate 1 by bolts. The output end of one mud pump 7 is connected to the inside of the treatment box 3 to pump the basement into the treatment box 3, and the input end of the other mud pump 7 is connected to the inside of the treatment box 3 to pump out the basement filtered by the filter plate 4, thus completing the dewatering.

[0025] The water inlet assembly 8 includes a connecting pipe 801, a connecting pipe 802, a water inlet hose 803, a water inlet cylinder 804, water inlet holes 805, and a filter screen 806. The connecting pipe 801 is fixedly connected to the input end of the mud pump 7, the connecting pipe 802 is fixedly connected to the connecting pipe 801, the water inlet hose 803 is fixedly connected to the connecting pipe 802, the water inlet cylinder 804 is fixedly connected to the water inlet hose 803, multiple water inlet holes 805 are opened on the water inlet cylinder 804, and the filter screen 806 is fixedly connected inside the water inlet cylinder 804. The water inlet assembly 8 can filter out larger impurities such as sand and gravel in the groundwater, thereby preventing them from entering the interior of the structure and causing wear to the components, thus improving the service life of the components in the structure. The treatment tank 3 is equipped with a lifting assembly 6.

[0026] Furthermore, such as Figure 2 and Figure 4As shown in the figure, the lifting assembly 6 includes a mounting ring 601 and guide rods 604. The mounting ring 601 is fixedly connected inside the treatment tank 3. The cross section of the mounting ring 601 is in a shape of a hollow square. Four guide rods 604 are fixedly connected to the mounting ring 601, and the four guide rods 604 are respectively located at four corner positions of the mounting ring 601.

[0027] Further, as shown in Figure 2 and Figure 4 the lifting assembly 6 further includes control motors 602 and lifting threaded rods 603. The two control motors 602 are fixed on the base plate 1 by bolts. The two lifting threaded rods 603 are respectively fixed on the output shafts of the two control motors 602 through couplings. Two adjacent guide rods 604 are symmetrically arranged with the lifting threaded rod 603 as the axis. The two lifting threaded rods 603 are rotatably connected to the mounting ring 601.

[0028] Further, as shown in Figure 2 and Figure 4 the lifting assembly 6 further includes a lifting plate 605. The lifting plate 605 is threadedly connected to the two lifting threaded rods 603, and the lifting plate 605 is slidably connected to the four guide rods 604. One side of the lifting plate 605 is attached to the filter plate 4, so that when the lifting plate 605 moves upward, attachments on the filter plate 4 can be cleaned.

[0029] Further, as shown in Figure 1 and Figure 2 four moving wheels 2 are fixedly connected to the base plate 1, and the overall movement of the device is facilitated through the moving wheels 2.

[0030] Further, as shown in Figure 1 and Figure 2 the treatment tank 3 is provided with a tank cover 5. The tank cover 5 includes a fixed cover 501, a movable cover 502, a latch 503 and a handle 504. The fixed cover 501 is fixedly connected to the treatment tank 3, the movable cover 502 is hinged to the fixed cover 501, the latch 503 is arranged on the movable cover 502, and the handle 504 is fixedly connected to the movable cover 502. The movable cover 502 can be opened through the handle 504, which facilitates the user to clean the impurities in the treatment tank 3.

[0031] The specific working method is as follows: First, the equipment is moved to the pit operation area by the moving wheels 2 at the bottom of the base plate 1. The water inlet cylinder 804, water inlet hose 803, connecting pipe 802 and connecting pipe 801 (flange fixed) of the water inlet assembly 8 are spliced ​​and extended to the bottom of the pit. The sand and gravel are initially filtered by the filter screen 806. The mud pump 7 on one side is started to pump the groundwater into the treatment tank 3. The water is filtered a second time by the filter plate 4 to intercept soil particles. The clean water is pumped out by the mud pump 7 on the other side to complete the dewatering. After the operation is completed, the movable cover 502 is opened and the control motor 602 drives the lifting threaded rod 603 to drive the lifting plate 605 to rise along the guide rod 604, pushing the deposited impurities to the top of the treatment tank 3 and scraping off the attachments on the filter plate 4. After manual cleaning, the lifting plate 605 is reset, and the equipment can be transferred and reused.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A foundation pit dewatering structure for foundation pit excavation, comprising a base plate (1), wherein a treatment box (3) is fixedly connected to the base plate (1), and a filter plate (4) is fixedly connected inside the treatment box (3), characterized in that: Two mud pumps (7) are fixedly connected to the base plate (1). The output end of one of the mud pumps (7) is connected to the inside of the treatment tank (3), and the input end of the other mud pump (7) is connected to the inside of the treatment tank (3). The water inlet assembly (8) includes a connecting pipe (801), a connecting pipe (802), a water inlet hose (803), a water inlet cylinder (804), a water inlet hole (805), and a filter screen (806). The connecting pipe (801) is fixedly connected to the input end of the mud pump (7). The connecting pipe (802) is fixedly connected to the connecting pipe (801). The water inlet hose (803) is fixedly connected to the connecting pipe (802). The water inlet cylinder (804) is fixedly connected to the water inlet hose (803). Multiple water inlets (805) are opened on the water inlet cylinder (804). The filter screen (806) is fixedly connected inside the water inlet cylinder (804). The treatment tank (3) is equipped with a lifting assembly (6).

2. The foundation pit dewatering structure for foundation pit excavation according to claim 1, characterized in that: The lifting assembly (6) includes a mounting ring (601) and guide rods (604). The mounting ring (601) is fixedly connected to the processing box (3), and the four guide rods (604) are fixedly connected to the mounting ring (601).

3. A foundation pit dewatering structure for foundation pit excavation according to claim 2, characterized in that: The lifting assembly (6) also includes a control motor (602) and a lifting threaded rod (603). The two control motors (602) are fixedly connected to the base plate (1), and the two lifting threaded rods (603) are respectively fixedly connected to the output shafts of the two control motors (602). The two lifting threaded rods (603) are rotatably connected to the mounting ring (601).

4. A foundation pit dewatering structure for foundation pit excavation according to claim 3, characterized in that: The lifting assembly (6) further includes a lifting plate (605), which is threadedly connected to two lifting threaded rods (603) and slidably connected to four guide rods (604).

5. A foundation pit dewatering structure for foundation pit excavation according to any one of claims 1-4, characterized in that: Four casters (2) are fixedly connected to the base plate (1).

6. A foundation pit dewatering structure for foundation pit excavation according to claim 1, characterized in that: The processing box (3) is provided with a box cover (5). The box cover (5) includes a fixed cover (501), a movable cover (502), a latch (503), and a handle (504). The fixed cover (501) is fixedly connected to the processing box (3). The movable cover (502) is hinged to the fixed cover (501). The latch (503) is provided on the movable cover (502). The handle (504) is fixedly connected to the movable cover (502).

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