A high-efficiency hole cleaning device for cast-in-place bored piles

Abstract

The utility model belongs to the field of cast -in -place pile construction technology discloses a bored pile efficient hole cleaning device, it includes drill bit, be provided with drill pipe in drill bit, drill pipe is used for discharging the silt in pile hole, the one end of drill pipe is connected with the slurry discharge port, the slurry discharge port one side is provided with extrusion conveying device, the extrusion conveying device includes the conveying pipe of intercommunication slurry discharge port, the screw rod of rotation connection in conveying pipe, sets up the liquid collecting plate below conveying pipe, the side of conveying pipe is close to liquid collecting plate and is provided with flow liquid hole, one end of conveying pipe is provided with the drive device of drive screw rod rotation, and the present application has thus the replacement of the convenient mud, improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a high-efficiency hole cleaning device for bored piles. Background Technology

[0002] Drilled piles are piles made by forming pile holes in the foundation soil on the engineering site through mechanical drilling, steel pipe soil displacement, or manual excavation, and then placing a steel cage inside and pouring concrete.

[0003] After the borehole of a bored pile is formed, it needs to be cleaned. In related technologies, after the cleaning device discharges the mud in the pile hole, it needs to allow the mud to settle. After settling, new mud is made to replace the mud in the pile hole.

[0004] However, the grouting process requires multiple cleanings of the pile hole, and the discharged mud settles in the sedimentation tank, which takes a relatively long time. The sedimentation rate is too slow due to multiple cleanings, which affects the construction efficiency of the pile. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency hole cleaning device for bored piles.

[0006] To improve construction efficiency, this utility model adopts the following technical solution: The device includes a drill bit, which contains a drill tube for discharging mud and sand from the pile hole. One end of the drill tube is connected to a slurry discharge port. A squeezing and conveying device is provided on one side of the slurry discharge port. The squeezing and conveying device includes a conveying pipe connected to the slurry discharge port, a rotatable screw rod connected inside the conveying pipe, and a liquid collecting plate located below the conveying pipe. A flow hole is opened on the side of the conveying pipe near the liquid collecting plate. A driving device for driving the screw rod to rotate is provided at one end of the conveying pipe.

[0007] By adopting the above technical solution, the extrusion conveying device transports the mud, and the liquid collection plate set below the conveying pipe can perform solid-liquid separation on the mud being extruded and transported. The screw rod can extrude the mud, thereby making the liquid flow out faster and increasing the discharge speed of the mud, further improving the processing speed of the mud in the pile hole, thus facilitating the replacement of the mud and improving construction efficiency.

[0008] Preferably, the driving device includes a large gear coaxially connected to one side of the screw rod, a small gear meshing with the large gear on one side, and a drive motor that drives the small gear to rotate.

[0009] By adopting the above technical solution, the drive motor drives the small gear to rotate, which in turn drives the meshing large gear to rotate the screw rod, thereby increasing the torque and making the mud move steadily, thus improving the stability of the drive.

[0010] Preferably, the spiral blades of the spiral rod are provided with openings.

[0011] By adopting the above technical solution, holes can be made in the spiral blades of the screw rod to better compress the mud and further improve the efficiency of solid-liquid separation.

[0012] Preferably, the liquid collection plate is provided with a liquid collection trough, and the bottom of the liquid collection trough is inclined.

[0013] By adopting the above technical solution, the inclined collection tank can better collect the water in the mud falling from above, making it easier for the liquid to collect.

[0014] Preferably, a mud trough is provided on one side of the conveying pipe, and a mud outlet is connected to one end of the conveying pipe near the mud trough.

[0015] By adopting the above technical solution, the mud tank set on one side of the conveying pipe can collect solids in the mud, which is convenient for subsequent processing.

[0016] Preferably, one end of the liquid collection tank is connected to the return liquid tank, and the liquid in the return liquid tank is used for circulating cleaning of the borehole.

[0017] By adopting the above technical solution and connecting the collection tank to the return tank, the recovered mud liquid can be recycled and reused, saving water resources and improving construction efficiency.

[0018] Preferably, the return tank is located below the mud tank, and the bottom of the mud tank has a collection hole.

[0019] By adopting the above technical solution, the return tank is set below the mud tank and a collection hole is opened, which can further collect the mud in the mud tank, thereby making the solid-liquid separation of mud more thorough.

[0020] Preferably, the conveying pipe is inclined, with the side of the conveying pipe near the slurry outlet higher than the side near the slurry discharge outlet.

[0021] By adopting the above technical solution and setting the conveying pipe at an angle, the liquid can flow to one side of the conveying pipe, reducing the accumulation of liquid on the discharge port side so that it can be discharged, thereby further improving the efficiency of solid-liquid separation.

[0022] The beneficial effects of this utility model are as follows: the extrusion conveying device conveys the mud, the liquid collection plate set below the conveying pipe can separate the solid and liquid in the extruded mud, and the screw rod can extrude the mud, so that the liquid flows out faster and the mud discharge speed is increased, which further improves the processing speed of mud in the pile hole, thereby facilitating the replacement of mud and improving construction efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a high-efficiency hole cleaning device for bored piles in an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures: 1. Drill bit; 2. Drill pipe; 3. Delivery pipe; 4. Slurry outlet; 5. Spiral rod; 6. Slurry collection plate; 7. Slurry outlet; 8. Large gear; 9. Small gear; 10. Drive motor; 11. Slurry collection tank; 12. Mud tank; 13. Slurry outlet; 14. Return tank; 15. Collection hole. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] The following reference Figure 1 The present invention will now describe the features provided by this utility model.

[0027] Reference Figure 1 A high-efficiency hole cleaning device for bored piles includes a drill bit 1, a drill pipe 2 inside the drill bit 1, and a drill pipe 2 through which mud is brought into the drill pipe 2 by an air compressor. One end of the drill pipe 2 is connected to a slurry discharge port 4, and a squeezing and conveying device is provided on one side of the slurry discharge port 4. The squeezing and conveying device is used to separate the mud into solid and liquid, thereby facilitating mud treatment.

[0028] Reference Figure 1 The extrusion conveying device includes a conveying pipe 3 connected to one end of the discharge port 4, a spiral rod 5 rotatably connected inside the conveying pipe 3, a liquid collecting plate 6 set below the conveying pipe 3, and a liquid flow hole 7 opened on the side of the conveying pipe 3 near the liquid collecting plate 6.

[0029] Reference Figure 1 The end of the conveying pipe 3 away from the discharge port 4 is fixedly connected to the slurry outlet 13. A mud trough 12 is also provided on one side of the conveying pipe 3, and the mud trough 12 is located below the slurry outlet 13.

[0030] Reference Figure 1 A drive device for rotating the screw rod 5 is connected to one end of the conveying pipe 3 near the slurry outlet 13. The drive device includes a large gear 8 coaxially connected to one side of the screw rod 5, a small gear 9 meshing with one side of the large gear 8, and a drive motor 10 that drives the small gear 9 to rotate. The drive motor 10 drives the small gear 9 to rotate, thereby driving the meshing large gear 8, and finally driving the screw rod 5 to rotate, thus increasing the output torque of the motor.

[0031] Reference Figure 1In order to improve the extrusion efficiency in the conveying pipe 3, the spiral blades of the screw rod 5 are provided with openings, which can better facilitate the extrusion of mud.

[0032] Reference Figure 1 A liquid collection trough 11 is provided on the liquid collection plate 6. In order to facilitate the collection of mud liquid, the bottom of the liquid collection trough 11 is inclined. One end of the liquid collection trough 11 is connected to the return liquid trough 14. The side of the liquid collection trough 11 closer to the return liquid trough 14 is lower. The liquid collected in the return liquid trough 14 is used for circulating and cleaning the borehole.

[0033] Reference Figure 1 The return tank 14 is located below the mud tank 12. The bottom of the mud tank 12 is provided with a collection hole 15. The liquid in the mud tank 12 can flow into the return tank 14 through the collection hole, which further improves the collection capacity of the liquid in the mud tank 12 and improves the solid-liquid separation efficiency.

[0034] Reference Figure 1 In order to further improve the efficiency of liquid collection in the mud, the conveying pipe 3 is set at an angle, with the side of the conveying pipe 3 near the slurry outlet 13 being higher than the side near the slurry discharge outlet 4. This allows the liquid to flow towards the slurry discharge outlet 4, reducing the possibility of the liquid flowing towards the slurry discharge outlet 4 and being discharged from it.

[0035] The working principle of the embodiments of this application is that the extrusion conveying device conveys the mud, the liquid collection plate 6 set below the conveying pipe 3 can separate the solid and liquid in the extrusion conveyed mud, and the screw rod 5 can extrude the mud, so that the liquid flows out faster and the mud discharge speed is increased, further improving the processing speed of mud in the pile hole, thereby facilitating the replacement of mud and improving construction efficiency.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency borehole cleaning device for bored piles, characterized in that, The device includes a drill bit (1), a drill tube (2) inside the drill bit (1), the drill tube (2) is used to discharge mud and sand in the pile hole, one end of the drill tube (2) is connected to the slurry discharge port (4), a squeezing and conveying device is provided on one side of the slurry discharge port (4), the squeezing and conveying device includes a conveying pipe (3) connected to the slurry discharge port (4), a screw rod (5) rotatably connected in the conveying pipe (3), and a liquid collecting plate (6) provided below the conveying pipe (3). A liquid flow hole (7) is opened on the side of the conveying pipe (3) near the liquid collecting plate (6), and a driving device for driving the screw rod (5) to rotate is provided at one end of the conveying pipe (3).

2. The high-efficiency borehole cleaning device for bored piles according to claim 1, characterized in that, The drive device includes a large gear (8) coaxially connected to one side of the screw rod (5), a small gear (9) meshing with one side of the large gear (8), and a drive motor (10) that drives the small gear (9) to rotate.

3. The high-efficiency borehole cleaning device for bored piles according to claim 1, characterized in that, The spiral blades of the spiral rod (5) are provided with openings.

4. The high-efficiency borehole cleaning device for bored piles according to claim 1, characterized in that, The liquid collection plate (6) is provided with a liquid collection tank (11), and the bottom of the liquid collection tank (11) is inclined.

5. The high-efficiency borehole cleaning device for bored piles according to claim 1, characterized in that, A mud trough (12) is provided on one side of the conveying pipe (3), and a mud outlet (13) is connected to one end of the conveying pipe (3) near the mud trough (12).

6. The high-efficiency borehole cleaning device for bored piles according to claim 5, characterized in that, One end of the liquid collection tank (11) is connected to the return liquid tank (14), and the liquid in the return liquid tank (14) is used for circulating cleaning of the borehole.

7. The high-efficiency borehole cleaning device for bored piles according to claim 6, characterized in that, The return tank (14) is located below the mud tank (12), and the bottom of the mud tank (12) is provided with a collection hole (15).

8. The high-efficiency borehole cleaning device for bored piles according to claim 5, characterized in that, The conveying pipe (3) is inclined, and the side of the conveying pipe (3) near the slurry outlet (13) is higher than the side near the slurry discharge outlet (4).

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