Deep foundation pit dewatering device

Abstract

The utility model discloses a deep foundation pit dewatering device which comprises a filtering outer frame, and a supporting and fixing suction dewatering structure is installed on the filtering outer frame. The supporting and fixing suction precipitation structure comprises two pairs of embedding grooves, two pairs of first filter screens, a plurality of fixing blocks, a plurality of telescopic push rods, a pair of supporting and fixing plates and a rotary filtering precipitation assembly; the foundation pit dewatering device relates to the technical field of foundation pit dewatering, and has the beneficial effects that the problems that most of existing foundation pit dewatering is directly pumped through a water pump, impurities such as silt in water can enter the water pump along with water flow, the service life of the water pump is influenced due to the fact that the impurities are accumulated in the water pump, the water pump is damaged, and the service life of the water pump is influenced are solved; and the precipitation efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit dewatering, in particular to a deep foundation pit dewatering device. Background Technique

[0002] A foundation pit is a soil pit dug before foundation construction during building construction in the construction industry. Foundation pit dewatering refers to the work of dewatering when the groundwater level is higher than the excavation bottom surface during the excavation of the foundation pit, and groundwater will continuously seep into the pit. To ensure that the foundation pit can be constructed under dry conditions and prevent slope instability, quicksand in the foundation, bottom heave, bottom piping, and a decrease in foundation bearing capacity, the existing foundation pit dewatering is mostly carried out by directly pumping with a water pump. Impurities such as sediment in the water will enter the water pump along with the water flow. The residual impurities accumulating inside the water pump will affect the service life of the water pump, cause damage to the water pump, and affect the dewatering efficiency. Content of the Utility Model

[0003] To achieve the above objectives, the utility model is realized through the following technical solutions: A deep foundation pit dewatering device, including: a filtering outer frame, and a support and fixation suction dewatering structure is installed on the filtering outer frame;

[0004] The support and fixation suction dewatering structure includes: two pairs of embedded grooves, two pairs of first filter meshes, several fixing blocks, several telescopic push rods, a pair of support and fixation plates, and a rotating filtering and dewatering component;

[0005] Two pairs of embedded grooves are opened on the filtering outer frame, two pairs of first filter meshes are installed on the two pairs of embedded grooves, several fixing blocks are installed at the outer edge positions of the upper and lower wall surfaces of the filtering outer frame, several telescopic push rods are installed on the several fixing blocks, a pair of support and fixation plates are installed at the output ends of the several telescopic push rods, and the rotating filtering and dewatering component is installed on the filtering outer frame;

[0006] The rotating filtering and dewatering component includes: a rotating sleeve, a first gear, an underwater rotating motor, a second gear, a water suction pipe, a second filter mesh, and a water suction hopper;

[0007] The rotating sleeve is movably embedded on the filtering outer frame, the first gear is installed at the upper end position of the rotating sleeve, the underwater rotating motor is installed on the upper wall surface of the filtering outer frame, the second gear is installed at the output end of the underwater rotating motor, the first gear meshes with the second gear, the water suction pipe is embedded in the rotating sleeve, the lower end of the water suction pipe penetrates and extends out from the middle position of the rotating sleeve, the second filter mesh is installed on the outer wall surface of the rotating sleeve, the water suction hopper is installed on the second filter mesh, and the lower end of the water suction pipe is connected to the water suction hopper.

[0008] Preferably, a pair of support and fixation plates are of an arc-shaped structure.

[0009] Preferably, a pair of support and fixation plates are installed on the several telescopic push rods through connection blocks.

[0010] Preferably, the underwater rotating motor is mounted on the filter outer frame through a motor bracket.

[0011] Preferably, a rotating pipeline joint is installed at the upper end of the water suction pipe.

[0012] Advantageous effects

[0013] The utility model provides a deep foundation pit dewatering device, which has the following advantageous effects: this solution uses a support-fixed suction dewatering structure and an immersion dewatering structure. In order to ensure the safety of the equipment, a support structure is added, which can support and fix the equipment to the inner wall of the foundation pit to prevent the drainage pipe from being damaged by gravity stretching. At the same time, it cooperates with the filtering structure to ensure the safety of the water pump, and solves the problem that most of the existing foundation pit dewatering is directly carried out by a water pump, and impurities such as sediment in the water will enter the water pump along with the water flow. The residual impurities accumulate inside the water pump, which will affect the service life of the water pump, cause damage to the water pump, and affect the dewatering efficiency. Brief description of the drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the deep foundation pit dewatering device described in the utility model.

[0015] Figure 2 is a front view structural schematic diagram of the deep foundation pit dewatering device described in the utility model.

[0016] Figure 3 is a three-dimensional structural schematic diagram of the rotating sleeve of the deep foundation pit dewatering device described in the utility model.

[0017] In the figure: 1 - filter outer frame; 2 - embedding groove; 3 - first filter screen; 4 - fixing block; 5 - telescopic push rod; 6 - support fixing plate; 7 - connecting block; 8 - rotating sleeve; 9 - first gear; 10 - underwater rotating motor; 11 - second gear; 12 - water suction pipe; 13 - second filter screen; 14 - water suction hopper; 15 - motor bracket; 16 - rotating pipeline joint. Detailed implementation manners

[0018] Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0019] Embodiment: Please refer to Figures 1-3 , the utility model provides a technical solution: a deep foundation pit dewatering device. Considering that impurities in the existing direct suction dewatering equipment will enter the inside of the water pump and accumulate, which will cause damage to the equipment after long-term use, affect the service life of the equipment, and affect the dewatering effect. Based on the above content, the following technical means are set in this case;

[0020] Specifically, this device at least includes a filtering outer frame 1, two pairs of embedding grooves 2, two pairs of first filter meshes 3, a number of fixing blocks 4, a number of telescopic push rods 5, a pair of supporting and fixing plates 6, and a rotating filtering and precipitation assembly;

[0021] The rotating filtering and precipitation assembly includes: a rotating sleeve 8, a first gear 9, an underwater rotating motor 10, a second gear 11, a water suction pipe 12, a second filter mesh 13, and a water suction hopper 14;

[0022] The filtering outer frame 1 mounts and supports the entire device. The water suction pipe 12 is connected to the water suction pipe of the water pump through a rotating pipeline joint 16. The device is lowered into the deep foundation pit. The telescopic push rods 5 installed on the filtering outer frame 1 through the fixing blocks 4 start to extend their output ends outward, driving the supporting and fixing plates 6 to move outward and abut against the inner wall surface of the deep foundation pit to fix the filtering outer frame 1. The water in the deep foundation pit is preliminarily filtered by the first filter meshes 3 installed in the embedding grooves 2 and then enters the interior of the filtering outer frame 1. The underwater rotating motor 10 installed on the filtering outer frame 1 through the motor mount 15 rotates to drive the second gear 11 to rotate. The second gear 11 cooperates with the first gear 9 meshing with it to drive the rotating sleeve 8 to rotate. The rotation of the rotating sleeve 8 will drive the second filter mesh 13 to rotate, performing secondary filtration on the water. At the same time, the stirring centrifugal force generated by the rotation can wash off the impurities adhered to the first filter mesh 3 to prevent blockage. When the second filter mesh 13 is rotating for filtration, precipitation suction is carried out through the external water pump in cooperation with the water suction hopper 14 and the water suction pipe 12.

[0023] More specifically, two pairs of embedding grooves 2 are opened on the filtering outer frame 1, two pairs of first filter meshes 3 are installed on the two pairs of first filter meshes 3, a number of fixing blocks 4 are installed at the outer edge positions of the upper and lower wall surfaces of the filtering outer frame 1, a number of telescopic push rods 5 are installed on the number of fixing blocks 4, a pair of supporting and fixing plates 6 are installed on the output ends of the number of telescopic push rods 5, and the rotating filtering and precipitation assembly is installed on the filtering outer frame 1;

[0024] The rotating sleeve 8 is movably embedded on the filtering outer frame 1. The first gear 9 is installed at the upper end position of the rotating sleeve 8. The underwater rotating motor 10 is installed on the upper wall surface of the filtering outer frame 1. The second gear 11 is installed on the output end of the underwater rotating motor 10. The first gear 9 meshes with the second gear 11. The water suction pipe 12 is embedded in the rotating sleeve 8. The lower end of the water suction pipe 12 penetrates and extends out from the middle position of the rotating sleeve 8. The second filter mesh 13 is installed on the outer wall surface of the rotating sleeve 8. The water suction hopper 14 is installed on the second filter mesh 13. The lower end of the water suction pipe 12 is connected to the water suction hopper 14.

[0025] In the specific implementation process, further, a pair of supporting and fixing plates 6 are of an arc-shaped structure.

[0026] In the specific implementation process, further, a pair of support fixing plates 6 are installed on a plurality of telescopic push rods 5 through connecting blocks 7.

[0027] In the specific implementation process, further, the underwater rotating motor 10 is installed on the filter outer frame 1 through the motor bracket 15.

[0028] In the specific implementation process, further, a rotating pipeline joint 16 is installed at the upper end of the water suction pipe 12.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Deep foundation pit dewatering device, comprising: Filter outer frame (1), characterized in that a support and fixed suction precipitation structure is installed on the filter outer frame (1); The support and fixed suction precipitation structure includes: two pairs of embedded grooves (2), two pairs of first filter meshes (3), a number of fixing blocks (4), a number of telescopic push rods (5), a pair of support and fixed plates (6) and a rotary filtration and precipitation assembly; Two pairs of embedded grooves (2) are opened on the filter outer frame (1), two pairs of first filter meshes (3) are installed on the two pairs of embedded grooves (2), a number of fixing blocks (4) are installed at the outer edge positions of the upper and lower wall surfaces of the filter outer frame (1), a number of telescopic push rods (5) are installed on the number of fixing blocks (4), a pair of support and fixed plates (6) are installed on the output ends of the number of telescopic push rods (5), and the rotary filtration and precipitation assembly is installed on the filter outer frame (1); The rotary filtration and precipitation assembly includes: a rotary sleeve (8), a first gear (9), an underwater rotary motor (10), a second gear (11), a water suction pipe (12), a second filter mesh (13) and a water suction hopper (14); The rotary sleeve (8) is movably embedded on the filter outer frame (1), the first gear (9) is installed at the upper end position of the rotary sleeve (8), the underwater rotary motor (10) is installed on the upper wall surface of the filter outer frame (1), the second gear (11) is installed on the output end of the underwater rotary motor (10), the first gear (9) meshes with the second gear (11), the water suction pipe (12) is embedded in the rotary sleeve (8), the lower end of the water suction pipe (12) penetrates and extends out from the middle position of the rotary sleeve (8), the second filter mesh (13) is installed on the outer wall surface of the rotary sleeve (8), the water suction hopper (14) is installed on the second filter mesh (13), and the lower end of the water suction pipe (12) is connected to the water suction hopper (14).

2. The deep foundation pit dewatering device according to claim 1, wherein A pair of support and fixed plates (6) are of an arc-shaped structure.

3. The deep foundation pit dewatering device according to claim 1, characterized in that, A pair of support and fixed plates (6) are installed on the number of telescopic push rods (5) through connecting blocks (7).

4. The deep foundation pit dewatering device according to claim 1, wherein The underwater rotary motor (10) is installed on the filter outer frame (1) through a motor bracket (15).

5. The deep foundation pit dewatering device according to claim 1, characterized in that, A rotary pipeline joint (16) is installed at the upper end of the water suction pipe (12).

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