A modular prefabricated deep foundation pit dewatering device

Abstract

The present invention relates to the technical field of building construction, and specifically to a modular prefabricated deep foundation pit dewatering device. A hollow round hole is opened at the top of the filter box. An inner rotating ring is rotatably connected inside the hollow round hole. An inner frame tooth is fixedly connected to the inner side of the inner rotating ring. A filter mesh plate is clamped at the top of the inner frame tooth. A connecting ring is fixedly connected to the top of the filter mesh plate. A fixed outer ring is rotatably connected to the top of the connecting ring. Five rotating button covers are installed on the top of the fixed outer ring. A water passing tank is clamped inside the fixed outer ring. A water passing cylinder is fixedly connected to the top of the water passing tank. An installation frame plate is fixedly connected to the top of the water passing cylinder. It not only solves the problems in the prior art that the components of the dewatering device are easily damaged by collision during transfer or disassembly, and the assembly process is cumbersome and time-consuming, but also significantly improves the construction efficiency and the practicality of the device through innovative anti-blocking design and height adjustment mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and specifically, to a modular prefabricated deep foundation pit dewatering device. Background Art

[0002] The components of the prefabricated dewatering device are detachable and recyclable. After completing a deep foundation pit dewatering project, it can be transported to other projects for reuse, reducing the equipment cost and conforming to the concept of green construction.

[0003] In the prior art, due to the large number of structures inside the dewatering device, when transferring or disassembling, each component is prone to collision damage, and the assembly process is cumbersome and time-consuming, affecting the construction efficiency. Moreover, the main structure affecting the device is the filtration structure, and the filter screen is prone to blockage after long-term use. Therefore, the present invention provides a modular prefabricated deep foundation pit dewatering device. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular prefabricated deep foundation pit dewatering device to solve the problems raised in the above background art.

[0005] The technical solution of the present invention is: a modular prefabricated deep foundation pit dewatering device, including a dewatering housing and a filter box. A hollow round hole is opened at the top of the filter box. An inner rotating ring is rotatably connected inside the hollow round hole. An inner frame tooth is fixedly connected to the inner side of the inner rotating ring. A filter mesh plate is clamped at the top of the inner frame tooth. A connecting ring is fixedly connected to the top of the filter mesh plate. A fixed outer ring is rotatably connected to the top of the connecting ring. Five rotating knob covers are installed on the top of the fixed outer ring. A water passing tank is clamped inside the fixed outer ring. A water passing cylinder is fixedly connected to the top of the water passing tank. An installation frame plate is fixedly connected to the top of the water passing cylinder. A water pushing motor is installed on the top of the installation frame plate. The output end of the water pushing motor is fixedly connected to a motor threaded shaft. A pushing pressure column is slidably clamped inside the water passing cylinder. The motor threaded shaft is threadedly connected to the inside of the pushing pressure column. A small gear disk is rotatably connected inside the filter box. An outer gear ring is fixedly connected to the outer side of the inner rotating ring. The outer gear ring meshes with the small gear disk. Two water passing openings are opened inside the water passing tank, one of which is communicated with the water passing cylinder. Water inlet holes are opened on the outer side of the water passing cylinder. Two water passing openings are opened at the bottom of the filter box. The water passing openings of the water passing tank and the filter box correspond to each other. Two fixed insertion cylinders are fixedly connected to the outer side of the dewatering housing. A fixed insertion column is slidably clamped inside the fixed insertion cylinder. A rotating motor is fixedly connected to the side of the fixed insertion column. A fixed cylinder is installed on the top of the dewatering housing. A rotating pressing block is rotatably connected to the top of the fixed cylinder. The output end of the rotating motor is fixedly connected to a rotating sliding rod. The rotating sliding rod penetrates through the filter box and is slidably clamped with the small gear disk; When in use: by placing the water passing tank inside the fixed outer ring, rotating the rotating knob cover to fix the water passing tank inside the fixed outer ring, and then placing the fixed outer ring inside the hollow round hole to make the filter mesh plate clamped with the inner frame tooth. Two water passing openings are provided, one of which is fixedly connected to the water passing cylinder, which is convenient for the overall removal of the fixed outer ring. By the forward and reverse rotation of the water pushing motor, the motor threaded shaft drives the pushing pressure column to move up and down. By pushing the inside of the water passing cylinder with the pushing pressure column, water is ejected, so that the fine sand at the bottom of the mesh holes of the filter mesh plate is ejected, preventing the filter mesh plate from being blocked. By driving the rotating sliding rod to rotate with the rotating motor, the small gear disk rotates, the inner rotating ring rotates, the filter mesh plate and the fixed outer ring rotate, and the mesh holes of the filter mesh plate rotate, which is convenient for cleaning. By providing the fixed insertion cylinder and the rotating pressing block, it is convenient to fix the rotating motor.

[0006] Preferably, positioning boxes are fixedly connected to both sides of the precipitation housing. An installation side plate is installed on one side of the positioning box. A support trapezoidal block is slidably clamped inside the positioning box. A support spring is fixedly connected between the support trapezoidal block and the installation side plate. A connecting inner column is fixedly connected to one side of the support trapezoidal block. A connecting outer cylinder is fixedly connected to one side of the installation side plate. A connecting outer ring is fixedly connected to the outer side of the connecting inner column. A connecting inner ring is fixedly connected to the inner side of the connecting outer cylinder. The connecting outer ring is slidably clamped inside the connecting outer cylinder. The connecting inner ring is slidably clamped outside the connecting inner column. Two limit clamping boxes are fixedly connected to the outer side of the precipitation housing. Side insertion plates are fixedly connected to both ends of the installation frame plate. The side insertion plates are slidably clamped inside the limit clamping boxes. A water extraction pipe is fixedly connected to the top of the precipitation housing. A water extraction pump is fixedly connected to one end of the water extraction pipe. A water extraction outer pipe is movably sleeved outside the water extraction pipe. An adjustment plate is fixedly connected to the outer side of the water extraction outer pipe. A synchronous rotating shaft is rotatably connected inside the precipitation housing. An adjustment tooth row is fixedly connected to one side of the adjustment plate. A large gear is fixedly connected to one end of the synchronous rotating shaft. The large gear meshes with the adjustment tooth row. An outer tooth box is fixedly connected to one side of the precipitation housing. A limit side plate is fixedly connected to one side of the precipitation housing. An adjustment threaded shaft is rotatably connected inside the limit side plate. A fixed turning buckle is fixedly connected to the top of the adjustment threaded shaft. A sliding tooth plate is slidably clamped inside the outer tooth box. A small gear is fixedly connected to the end of the synchronous rotating shaft away from the large gear. The small gear meshes with the sliding tooth plate. The adjustment threaded shaft is threadedly connected to the top of the sliding tooth plate; When in use: Through the positioning box and its internal structure, the filter box is placed on the top of the support trapezoidal block. At the same time, multiple support trapezoidal blocks are provided, which can adjust the height of the filter box. By pushing the support trapezoidal block, the support trapezoidal block can be retracted into the positioning box. During disassembly, the installation side plate can be removed and pulled towards the positioning box side, so that the connecting outer cylinder passes through the connecting inner ring and the connecting outer ring, and the support trapezoidal block is pulled back to make the filter box slide off, which is convenient for movement. By rotating the adjustment threaded shaft, the height of the sliding tooth plate can be adjusted, so that the small gear and the large gear rotate synchronously, and the adjustment plate moves downward, thereby adjusting the height of the bottom of the water extraction outer pipe and facilitating the adjustment of the precipitation height.

[0007] The present invention provides a modular prefabricated deep foundation pit precipitation device through improvement. Compared with the prior art, it has the following improvements and advantages:

[0008] First: For a modular prefabricated deep foundation pit dewatering device described in the present invention, by placing a through-water tank inside a fixed outer ring, fixing the through-water tank inside the fixed outer ring by rotating a rotating button cover, then placing the fixed outer ring inside a hollow round hole, engaging a filter disk with inner frame teeth, setting two water inlets, one water inlet fixedly connected to a water through cylinder, facilitating the overall removal of the fixed outer ring, through the forward and reverse rotation of a water-pushing motor, driving a motor threaded shaft to drive a pushing pressure column to move up and down, pushing inside the water through cylinder through the pushing pressure column to eject water, ejecting fine sand and gravel at the bottom of the filter disk mesh holes, preventing blockage of the filter disk, driving a rotating slide rod to rotate through a rotating motor, rotating a small gear disk, rotating an inner rotating ring, rotating the filter disk and the fixed outer ring, rotating the mesh holes of the filter disk, facilitating cleaning, and facilitating the fixation of the rotating motor by setting a fixed insertion cylinder and a rotating pressing block;

[0009] Second: For a modular prefabricated deep foundation pit dewatering device described in the present invention, through a positioning box and its internal structure, placing a filter box on the top of a support trapezoidal block, and simultaneously setting multiple support trapezoidal blocks, the height of the filter box can be adjusted. By pushing the support trapezoidal block, the support trapezoidal block can be retracted into the positioning box. During disassembly, the installation side plate can be removed and pulled towards the positioning box side, pulling the connecting outer cylinder through a connecting inner ring and a connecting outer ring, pulling the support trapezoidal block back for recovery, enabling the filter box to slide off, facilitating movement, and adjusting the height of a sliding tooth plate by rotating an adjustment threaded shaft, synchronously rotating a small gear and a large gear, moving an adjustment plate downward, thereby adjusting the height of the bottom of a water pumping outer pipe, facilitating the adjustment of the dewatering height;

[0010] Summary: A modular prefabricated deep foundation pit dewatering device described in the present invention not only solves the problems in the prior art that components of dewatering devices are prone to collision damage during transfer or disassembly, the assembly process is cumbersome and time-consuming, but also significantly improves the construction efficiency and the practicality of the device through an innovative anti-blocking design and a height adjustment mechanism. The device adopts a modular design, enabling each component to be easily disassembled and reassembled, greatly reducing the device cost, and at the same time conforming to the concept of green construction. Brief Description of the Drawings

[0011] The following further explains the present invention in conjunction with the drawings and embodiments:

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 is a structural schematic diagram of the dewatering outer shell of the present invention;

[0014] Figure 3 is a structural schematic diagram of the filter box of the present invention;

[0015] Figure 4It is a schematic diagram of the fixed outer ring structure of the present invention;

[0016] Figure 5 It is a schematic diagram of the positioning box structure of the present invention;

[0017] Figure 6 It is a schematic diagram of the mounting frame plate structure of the present invention;

[0018] Figure 7 It is a schematic diagram of the rotating slide rod structure of the present invention;

[0019] Figure 8 It is a schematic diagram of the water extraction pipe structure of the present invention.

[0020] Description of reference numerals:

[0021] 1. Precipitation outer shell; 2. Positioning box; 3. Limit card box; 4. Filter box; 5. Side insertion plate; 6. Mounting frame plate; 7. Hollow round hole; 8. Small gear disk; 9. Inner rotating ring; 10. Outer gear ring; 11. Inner frame teeth; 12. Filter mesh disk; 13. Connecting ring; 14. Fixed outer ring; 15. Rotating knob cover; 16. Through water tank; 17. Mounting side plate; 18. Connecting outer cylinder; 19. Connecting inner ring; 20. Connecting inner column; 21. Connecting outer ring; 22. Support spring; 23. Support trapezoidal block; 24. Water pushing motor; 25. Motor threaded shaft; 26. Pushing pressure column; 27. Water passing cylinder; 28. Fixed insertion cylinder; 29. Fixed insertion column; 30. Rotating motor; 31. Rotating slide rod; 32. Fixed cylinder; 33. Rotating pressure block; 34. Water extraction pipe; 35. Water extraction pump; 36. Water extraction outer pipe; 37. Adjusting plate; 38. Adjusting tooth row; 39. Synchronous rotating shaft; 40. Large gear; 41. Outer tooth box; 42. Sliding tooth plate; 43. Small gear; 44. Limit side plate; 45. Fixed rotating buckle; 46. Adjusting threaded shaft. Detailed implementation manners

[0022] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides a modular prefabricated deep foundation pit dewatering device through improvement. The technical solution of the present invention is:

[0024] As Figures 1 - 8As shown in the figure, a modular prefabricated deep foundation pit dewatering device includes a dewatering housing 1 and a filter box 4. A hollow circular hole 7 is opened at the top of the filter box 4. An inner rotating ring 9 is rotatably connected inside the hollow circular hole 7. An inner frame gear 11 is fixedly connected to the inner side of the inner rotating ring 9. A filter screen plate 12 is clamped at the top of the inner frame gear 11. A connecting ring 13 is fixedly connected to the top of the filter screen plate 12. A fixed outer ring 14 is rotatably connected to the top of the connecting ring 13. Five rotating knob covers 15 are installed on the top of the fixed outer ring 14. A water passing box 16 is clamped inside the fixed outer ring 14. A water passing cylinder 27 is fixedly connected to the top of the water passing box 16. An installation frame plate 6 is fixedly connected to the top of the water passing cylinder 27. A water pushing motor 24 is installed on the top of the installation frame plate 6. The output end of the water pushing motor 24 is fixedly connected to a motor threaded shaft 25. A pushing pressure column 26 is slidably clamped inside the water passing cylinder 27. The motor threaded shaft 25 is threadedly connected to the inside of the pushing pressure column 26. A small gear disk 8 is rotatably connected inside the filter box 4. An outer gear ring 10 is fixedly connected to the outer side of the inner rotating ring 9. The outer gear ring 10 meshes with the small gear disk 8. Two water passing openings are opened inside the water passing box 16. One is communicated with the water passing cylinder 27. Water inlet holes are opened on the outer side of the water passing cylinder 27. Two water passing openings are opened at the bottom of the filter box 4. The water passing openings of the water passing box 16 and the filter box 4 correspond to each other. Two fixed insertion cylinders 28 are fixedly connected to the outer side of the dewatering housing 1. A fixed insertion column 29 is slidably clamped inside the fixed insertion cylinder 28. A rotating motor 30 is fixedly connected to the side of the fixed insertion column 29. A fixed cylinder 32 is installed on the top of the dewatering housing 1. A rotating pressing block 33 is rotatably connected to the top of the fixed cylinder 32. The output end of the rotating motor 30 is fixedly connected to a rotating sliding rod 31. The rotating sliding rod 31 passes through the filter box 4, and the rotating sliding rod 31 is slidably clamped with the small gear disk 8. When in use: By placing the water passing box 16 inside the fixed outer ring 14, and rotating the rotating knob covers 15 to fix the water passing box 16 inside the fixed outer ring 14, then placing the fixed outer ring 14 inside the hollow circular hole 7 to make the filter screen plate 12 clamped with the inner frame gear 11. Two water passing openings are provided. One water passing opening is fixedly connected to the water passing cylinder 27, which is convenient for the overall removal of the fixed outer ring 14. By the forward and reverse rotation of the water pushing motor 24, the motor threaded shaft 25 drives the pushing pressure column 26 to move up and down. By pushing the pushing pressure column 26 inside the water passing cylinder 27, water is ejected, so that the fine sand and gravel at the bottom of the mesh holes of the filter screen plate 12 are ejected, preventing the filter screen plate 12 from being blocked. By driving the rotating sliding rod 31 to rotate by the rotating motor 30, the small gear disk 8 rotates, the inner rotating ring 9 rotates, the filter screen plate 12 and the fixed outer ring 14 rotate, and the mesh holes of the filter screen plate 12 rotate, which is convenient for cleaning. By setting the fixed insertion cylinder 28 and the rotating pressing block 33, it is convenient to fix the rotating motor 30.

[0025] Furthermore, positioning boxes 2 are fixedly connected to both sides of the precipitation outer shell 1. An installation side plate 17 is installed on one side of the positioning box 2. A support trapezoidal block 23 is slidably clamped inside the positioning box 2. A support spring 22 is fixedly connected between the support trapezoidal block 23 and the installation side plate 17. A connecting inner column 20 is fixedly connected to one side of the support trapezoidal block 23. A connecting outer cylinder 18 is fixedly connected to one side of the installation side plate 17. A connecting outer ring 21 is fixedly connected to the outer side of the connecting inner column 20. A connecting inner ring 19 is fixedly connected to the inner side of the connecting outer cylinder 18. The connecting outer ring 21 is slidably clamped inside the connecting outer cylinder 18. The connecting inner ring 19 is slidably clamped outside the connecting inner column 20. Two limit clamping boxes 3 are fixedly connected to the outer side of the precipitation outer shell 1. Side insertion plates 5 are fixedly connected to both ends of the installation frame plate 6. The side insertion plates 5 are slidably clamped inside the limit clamping boxes 3. A water extraction pipe 34 is fixedly connected to the top of the precipitation outer shell 1. A water extraction pump 35 is fixedly connected to one end of the water extraction pipe 34. A water extraction outer pipe 36 is movably sleeved outside the water extraction pipe 34. An adjustment plate 37 is fixedly connected to the outer side of the water extraction outer pipe 36. A synchronous rotating shaft 39 is rotatably connected inside the precipitation outer shell 1. An adjustment tooth row 38 is fixedly connected to one side of the adjustment plate 37. A large gear 40 is fixedly connected to one end of the synchronous rotating shaft 39. The large gear 40 meshes with the adjustment tooth row 38. An outer tooth box 41 is fixedly connected to one side of the precipitation outer shell 1. A limit side plate 44 is fixedly connected to one side of the precipitation outer shell 1. An adjustment threaded shaft 46 is rotatably connected inside the limit side plate 44. A fixed turning buckle 45 is fixedly connected to the top of the adjustment threaded shaft 46. A sliding tooth plate 42 is slidably clamped inside the outer tooth box 41. A small gear 43 is fixedly connected to the end of the synchronous rotating shaft 39 away from the large gear 40. The small gear 43 meshes with the sliding tooth plate 42. The adjustment threaded shaft 46 is threadedly connected to the top of the sliding tooth plate 42; When in use: Through the positioning box 2 and the internal structure, the filter box 4 is placed on the top of the support trapezoidal block 23. At the same time, multiple support trapezoidal blocks 23 are provided, which can adjust the height of the filter box 4. By pushing the support trapezoidal block 23, the support trapezoidal block 23 can be contracted into the positioning box 2. When disassembling, the installation side plate 17 can be removed and pulled towards the positioning box 2 side, so that the connecting outer cylinder 18 passes through the connecting inner ring 19 and the connecting outer ring 21, and the support trapezoidal block 23 is pulled back, so that the filter box 4 can slide off, which is convenient for movement. By rotating the adjustment threaded shaft 46, the height of the sliding tooth plate 42 can be adjusted, so that the small gear 43 and the large gear 40 rotate synchronously, and the adjustment plate 37 moves downward, thereby adjusting the height of the bottom of the water extraction outer pipe 36, which is convenient for adjusting the precipitation height.

[0026] Working principle: By placing the water-through tank 16 inside the fixed outer ring 14, fixing the water-through tank 16 inside the fixed outer ring 14 by rotating the rotating knob cover 15, then placing the fixed outer ring 14 inside the hollow circular hole 7, engaging the filter disk 12 with the inner rack teeth 11, setting two water-through ports, one water-through port is fixedly connected to the water-through cylinder 27, which facilitates the overall removal of the fixed outer ring 14. By the forward and reverse rotation of the water-pushing motor 24, the motor threaded shaft 25 drives the pushing pressure column 26 to move up and down. By the pushing pressure column 26 pushing inside the water-through cylinder 27, water is ejected, and the fine sand and gravel at the bottom of the mesh holes of the filter disk 12 are ejected, preventing the filter disk 12 from being blocked. By the rotating motor 30 driving the rotating slide bar 31 to rotate, the small gear disk 8 rotates, the inner rotating ring 9 rotates, the filter disk 12 and the fixed outer ring 14 rotate, and the mesh holes of the filter disk 12 rotate, which is convenient for cleaning. By setting the fixed insertion cylinder 28 and the rotating pressing block 33, it is convenient to fix the rotating motor 30. Through the positioning box 2 and its internal structure, the filter box 4 is placed on the top of the supporting trapezoidal block 23. At the same time, multiple supporting trapezoidal blocks 23 are set, which can adjust the height of the filter box 4. By pushing the supporting trapezoidal block 23, the supporting trapezoidal block 23 can be contracted into the inside of the positioning box 2. When disassembling, the installation side plate 17 can be removed and pulled towards the positioning box 2 side, so that the connecting outer cylinder 18 passes through the connecting inner ring 19 and the connecting outer ring 21, pulling the supporting trapezoidal block 23 to retract, and the filter box 4 can slide off, which is convenient for moving. By rotating the adjustment threaded shaft 46, the height of the sliding tooth plate 42 can be adjusted, so that the small gear 43 rotates synchronously with the large gear 40, and the adjustment plate 37 moves downward, thereby adjusting the height of the bottom of the water-pumping outer tube 36, which is convenient for adjusting the precipitation height.

[0027] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular prefabricated deep foundation pit dewatering device, comprising a dewatering housing (1) and a filter box (4), characterized in that: A hollow round hole (7) is opened at the top of the filter box (4). An inner rotating ring (9) is rotatably connected inside the hollow round hole (7). An inner rack tooth (11) is fixedly connected to the inner side of the inner rotating ring (9). A filter mesh disk (12) is clamped on the top of the inner rack tooth (11). A connecting ring (13) is fixedly connected to the top of the filter mesh disk (12). A fixed outer ring (14) is rotatably connected to the top of the connecting ring (13). Five rotating knob covers (15) are installed on the top of the fixed outer ring (14). A water passing box (16) is clamped inside the fixed outer ring (14). A water passing cylinder (27) is fixedly connected to the top of the water passing box (16). An installation frame plate (6) is fixedly connected to the top of the water passing cylinder (27). A water pushing motor (24) is installed on the top of the installation frame plate (6). An output end of the water pushing motor (24) is fixedly connected to a motor threaded shaft (25). A pushing pressure column (26) is slidably clamped inside the water passing cylinder (27). The motor threaded shaft (25) is threadedly connected inside the pushing pressure column (26). A small gear disk (8) is rotatably connected inside the filter box (4). An outer gear ring (10) is fixedly connected to the outer side of the inner rotating ring (9). The outer gear ring (10) meshes with the small gear disk (8). Two water passing ports are opened inside the water passing box (16), one of which is communicated with the water passing cylinder (27). Water inlet holes are opened on the outer side of the water passing cylinder (27). Two water passing ports are opened at the bottom of the filter box (4). The water passing ports of the water passing box (16) and the filter box (4) correspond to each other. Two fixed insertion cylinders (28) are fixedly connected to the outer side of the precipitation outer shell (1). A fixed insertion column (29) is slidably clamped inside the fixed insertion cylinder (28). A rotating motor (30) is fixedly connected to the side of the fixed insertion column (29). A fixed cylinder (32) is installed on the top of the precipitation outer shell (1). A rotating pressing block (33) is rotatably connected to the top of the fixed cylinder (32). An output end of the rotating motor (30) is fixedly connected to a rotating sliding rod (31). The rotating sliding rod (31) penetrates through the filter box (4), and the rotating sliding rod (31) is slidably clamped with the small gear disk (8).

2. The modular prefabricated deep foundation pit dewatering equipment according to claim 1, characterized in that: Positioning boxes (2) are fixedly connected to both sides of the precipitation outer shell (1). An installation side plate (17) is installed on one side of the positioning box (2). A supporting trapezoidal block (23) is slidably clamped inside the positioning box (2). A supporting spring (22) is fixedly connected between the supporting trapezoidal block (23) and the installation side plate (17). A connecting inner column (20) is fixedly connected to one side of the supporting trapezoidal block (23). A connecting outer cylinder (18) is fixedly connected to one side of the installation side plate (17). A connecting outer ring (21) is fixedly connected to the outer side of the connecting inner column (20). A connecting inner ring (19) is fixedly connected to the inner side of the connecting outer cylinder (18). The connecting outer ring (21) is slidably clamped inside the connecting outer cylinder (18). The connecting inner ring (19) is slidably clamped on the outer side of the connecting inner column (20).

3. The modular prefabricated deep foundation pit dewatering equipment according to claim 2, characterized in that: Two limit clamping boxes (3) are fixedly connected to the outer side of the precipitation housing (1). Side insertion plates (5) are fixedly connected to both ends of the mounting frame plate (6), and the side insertion plates (5) are slidably clamped inside the limit clamping boxes (3).

4. The modular prefabricated deep foundation pit dewatering equipment according to claim 3, characterized in that: A water suction pipe (34) is fixedly connected to the top of the precipitation housing (1). One end of the water suction pipe (34) is fixedly connected to a water suction pump (35). A water suction outer pipe (36) is movably sleeved outside the water suction pipe (34). An adjustment plate (37) is fixedly connected to the outer side of the water suction outer pipe (36). A synchronous rotating shaft (39) is rotatably connected inside the precipitation housing (1). An adjustment tooth row (38) is fixedly connected to one side of the adjustment plate (37). A large gear (40) is fixedly connected to one end of the synchronous rotating shaft (39), and the large gear (40) meshes with the adjustment tooth row (38).

5. The modular prefabricated deep foundation pit dewatering equipment according to claim 4, characterized in that: An outer tooth box (41) is fixedly connected to one side of the precipitation housing (1). A limit side plate (44) is fixedly connected to one side of the precipitation housing (1). An adjustment threaded shaft (46) is rotatably connected inside the limit side plate (44). A fixed turning buckle (45) is fixedly connected to the top of the adjustment threaded shaft (46). A sliding tooth plate (42) is slidably clamped inside the outer tooth box (41). A small gear (43) is fixedly connected to the end of the synchronous rotating shaft (39) away from the large gear (40). The small gear (43) meshes with the sliding tooth plate (42), and the adjustment threaded shaft (46) is threadedly connected to the top of the sliding tooth plate (42).

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