Hole cleaning device for rotary excavating cast-in-situ bored pile

Abstract

The utility model relates to the technical field of rotary excavating cast-in-situ bored piles, and discloses a rotary excavating cast-in-situ bored pile hole cleaning device which comprises a hanging frame and a base plate. The base plate is hung on the inner side of the cast-in-place pile through the hanging frame. The sludge diluting and stirring mechanism is mounted on the base plate and is used for diluting and stirring sludge in the cast-in-place pile; the silt pumping mechanism comprises a silt pumping pipe, a circular ring pipe, a silt conveying hose and a silt pumping pump; the circular ring pipe is fixed to the upper side of the base plate, the lower side of the circular ring pipe is connected with a plurality of silt pumping pipes penetrating through the base plate, and the circular ring pipe is further connected with a silt pumping pump through a silt conveying hose. The sludge diluting and stirring mechanism is positioned on the inner side of each sludge pumping pipe. Compared with the prior art, the silt pumping device has the advantages that when the silt pumping device is used, silt can be pumped more efficiently, the silt can be stirred and diluted before being pumped, and therefore the silt pumping pipe is not prone to being blocked in the silt pumping process.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary bored piles, in particular to a rotary bored pile hole cleaning device. Background Art

[0002] Before pouring bored piles, the borehole must be cleaned. Prior to pouring, this process typically involves vacuuming away the silt at the bottom of the borehole. Currently, existing equipment for vacuuming away silt at the bottom of the borehole typically consists of a vacuum pump and a vacuum pipe. After connecting the vacuum pipe to the pump, the bottom of the pipe is lowered into the bottom of the borehole. The vacuum pump is then activated to vacuum away the silt at the bottom of the borehole.

[0003] It is not difficult to see that the above-mentioned existing silt extraction equipment has a relatively low efficiency in operation; and due to the different viscosities of the silt, when the silt is relatively viscous, it is easy to cause the silt extraction pipe to be blocked. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the above technical difficulties and provide a rotary bored pile hole cleaning device, which can more efficiently extract silt when in use, and can stir and dilute the silt before extraction, so that it is not easy for the silt extraction pipe to be blocked during the silt extraction process.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] The hole cleaning device for rotary bored piles includes:

[0007] Hanging rack and base plate; the base plate is hung on the inner side of the cast-in-place pile through the hanging rack;

[0008] The sludge dilution and stirring mechanism is installed on the base plate to dilute and stir the sludge in the bored pile;

[0009] The silt extraction mechanism includes a silt extraction pipe, a circular ring pipe, a silt delivery hose and a silt extraction pump; the circular ring pipe is fixed on the upper side of the base plate, and the lower side is connected to multiple silt extraction pipes that pass through the base plate. The circular ring pipe is also connected to the silt extraction pump through the silt delivery hose; the sludge dilution and stirring mechanism is located inside each silt extraction pipe.

[0010] As an improvement, the hanger includes a hanging rod and a hanging plate; after the hanging plate is placed on the top surface of the cast-in-place pile, it is detachably connected to the base plate through the hanging rod; the hanging rod is formed by splicing multiple splicing rods end to end in sequence;

[0011] The bottom surface of the splicing rod is formed with a threaded column, and the top surface is provided with a threaded hole groove that matches the threaded column. The threaded column on the bottom splicing rod is threadedly connected to a nut sleeve integrally formed on the top surface of the base plate. The hanging plate is reserved with a through hole that just fits the top splicing rod through. The threaded hole groove of the top splicing rod is threadedly connected to a handle screw. The handle portion of the handle screw is a polygonal plate structure and overlaps the upper side of the hanging plate. This allows the new device to be conveniently hung inside a rotary bored pile, and the depth to which the base plate is placed inside the rotary bored pile is adjustable.

[0012] As an improvement, the sludge dilution and stirring mechanism includes a water pipe, a water distribution pipe, a transfer pipe, and a rotation drive mechanism; the bottom of the water pipe is closed, and the top passes through and is rotatably connected to the middle of the base plate. The transfer pipe is rotatably sleeved on the top of the water pipe and is fixed on the upper side of the base plate. Multiple water distribution pipes are connected to the side wall of the transfer pipe, and multiple water spray holes are reserved on the side wall of the water distribution pipe, and a conical water spray port is formed at the non-fixed end. The water pipe is driven to rotate by a rotation drive mechanism provided on the base plate. The rotation drive mechanism includes a motor. After the motor is installed and fixed on the upper side of the base plate, the output shaft is driven to connect with the water pipe. The transfer pipe is connected to a water pump via a water hose, and the water pump is used to pump clean water into the water pipe.

[0013] It is worth mentioning that the motors and water pumps used in this technical solution are existing equipment in the common knowledge, and their use and control methods are all existing technologies.

[0014] The advantages of this utility model compared with the prior art are:

[0015] 1. When the new model is in use, since the silt extraction mechanism includes a plurality of silt extraction pipes evenly arranged along the circumference of the circular pipe, the silt extraction pump can more quickly and efficiently extract the silt at the bottom of the borehole after it is started.

[0016] 2. When the new model is in use, before pumping out the silt, the water pump pumps the water into the water pipe, and then sprays the water into the silt through the water distribution pipes. At the same time, the motor drives the water pipe and the water distribution pipes to rotate and stir the silt. In this way, the silt can be effectively stirred and diluted, and then when pumping out the silt, it is not easy for the silt pumping pipe to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a usage state diagram of the utility model.

[0018] Figure 2 It is a structural diagram of the present utility model.

[0019] Figure 3 It is a structural schematic diagram of the handle screw and the splicing rod of the utility model.

[0020] Figure 4This utility model Figure 2 Schematic diagram of part of the structure.

[0021] Figure 5 This utility model Figure 4 A structural diagram from another perspective.

[0022] Figure 6 This utility model Figure 5 Schematic diagram of part of the structure.

[0023] As shown in the figure: 1. Base plate; 2. Cast-in-place pile; 3. Desilting pipe; 4. Circular pipe; 5. Hanging plate; 6. Splicing rod; 7. Threaded column; 8. Threaded hole groove; 9. Nut sleeve; 10. Handle screw; 11. Water pipe; 12. Water distribution pipe; 13. Adapter pipe; 14. Conical water nozzle; 15. Motor. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] The hole cleaning device for rotary bored piles includes:

[0027] Hanger and base plate 1; Figure 2 and 3As shown, the hanger includes a hanging rod and a hanging plate 5; after the hanging plate 5 is placed on the top surface of the cast-in-place pile 2, it is detachably connected to the base plate 1 through the hanging rod; the hanging rod is composed of three splicing rods 6 spliced end to end. A threaded column 7 is formed on the bottom surface of the splicing rod 6, and a threaded hole groove 8 is opened on the top surface to match the threaded column 7; a nut sleeve 9 integrally formed on the top surface of the base plate 1 is threadedly sleeved on the threaded column 7 on the bottom splicing rod 6, and a through hole is reserved on the hanging plate 5 for the top splicing rod 6 to pass through, and a handle screw 10 is threadedly connected to the threaded hole groove 8 of the top splicing rod 6. The handle portion of the handle screw 10 is a polygonal plate structure and is overlapped on the upper side of the hanging plate 5;

[0028] Sludge dilution and stirring mechanism, such as Figure 4 、 5 As shown in FIG6 , it includes a water pipe 11, a water distribution pipe 12, a switching pipe 13 and a motor 15; the bottom of the water pipe 11 is closed, and the top passes through and is rotatably connected to the middle of the base plate 1. The switching pipe 13 is rotatably sleeved on the top of the water pipe 11 and is fixed on the upper side of the base plate 1. The switching pipe 13 is connected to a water pump through a water hose. A plurality of water distribution pipes 12 are connected to the side wall of the switching pipe 13. The plurality of water distribution pipes 12 are uniformly arranged along the circumference and axial direction of the water pipe 11. A plurality of water spray holes are reserved on the side wall of the water distribution pipe 12. Each water spray hole is uniformly arranged along the circumference and axial direction of the water distribution pipe 12. A conical water spray port 14 is formed on the non-fixed end of the water distribution pipe 12. In this way, if silt enters the water distribution pipe 12, it will be easily washed away by the water flow therein. The water pipe 11 is driven to rotate by a rotating drive mechanism arranged on the base plate 1. After the motor 15 is installed and fixed on the upper side of the base plate 1, the output shaft is driven to connect with the water pipe 11 (specifically as shown in FIG6 ). Figure 2 、 4 5, the output shaft of the motor 15 is connected to the top of the water pipe 11 through a pulley and a transmission belt);

[0029] Desilt extraction mechanisms, such as Figure 4 and 5 As shown, it includes a silt extraction pipe 3, a circular ring pipe 4, a silt delivery hose and a silt extraction pump; the circular ring pipe 4 is fixed on the upper side of the base plate 1, and the lower side is connected to six silt extraction pipes 3 that pass through the base plate 1. The circular ring pipe 4 is also connected to the silt extraction pump through the silt delivery hose (the silt delivery hose and the silt extraction pump are not drawn in the figure), and a pipe joint connected to the silt delivery hose is formed on the upper side of the circular ring pipe 4; the sludge dilution and stirring mechanism is located on the inner side of each silt extraction pipe 3.

[0030] In the specific implementation of this embodiment: Figure 1 and 2As shown, the rotary bored pile is located in the borehole. The base plate 1 and the silt dilution and stirring mechanism, silt extraction mechanism, and hanging rod formed thereon are placed in the rotary bored pile and hung in the rotary bored pile. The hanging plate 5 is placed on the top surface of the rotary bored pile. Then, the water pump and the motor 15 are started simultaneously. The water pump pumps water into the water pipe 11 and sprays it through the water distribution pipes 12. At the same time, the motor 15 drives the water pipe 11 and the water distribution pipe 12 to rotate and stir the silt (during stirring, the staff needs to step on the two ends of the hanging plate 5 to ensure that the hanging plate 5 does not rotate and deviate from the position during stirring). In this way, the silt can be diluted and stirred. The silt extraction pump is then started, and the silt extraction pipes 3 will suck away the stirred and diluted silt, completing the hole cleaning operation of the rotary bored pile.

[0031] It is easy to understand that different numbers of splicing rods 6 on the hanging rod lead to different lengths of the hanging rod, and thus different depths to which the base plate 1 can dive into the bored pile 2 after the rotary drilling bored pile hole cleaning device is assembled.

[0032] It is worth mentioning that when the rotary bored pile hole cleaning device is in use, the total weight of the base plate 1 and its sludge dilution and stirring mechanism, sludge extraction mechanism, and hanging rod is borne by the handle screw 10. Specifically, it is borne by the connection between the handle screw 10 and the threaded hole 8 of the top splicing rod 6. Therefore, in order to ensure that the handle screw 10 can withstand the total weight, the screw portion of the handle screw 10 can be extended as much as possible, and the corresponding threaded hole 8 can be deepened accordingly, thereby increasing the weight that the handle screw 10 can bear.

[0033] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A device for cleaning the bored pile, characterized in that: include: A hanging bracket and a base plate (1); the base plate (1) is hung on the inner side of the cast-in-place pile (2) via the hanging bracket; A sludge dilution and stirring mechanism is installed on the base plate (1) to dilute and stir the sludge in the cast-in-place pile (2); The silt extraction mechanism comprises a silt extraction pipe (3), a circular ring pipe (4), a silt delivery hose and a silt extraction pump; the circular ring pipe (4) is fixed on the upper side of the base plate (1), and the lower side is connected to a plurality of silt extraction pipes (3) that penetrate the base plate (1); the circular ring pipe (4) is also connected to the silt extraction pump via the silt delivery hose; and the silt dilution and stirring mechanism is located inside each silt extraction pipe (3).

2. The hole cleaning device for bored piles according to claim 1, characterized in that: The hanger comprises a hanging rod and a hanging plate (5); after the hanging plate (5) is placed on the top surface of the cast-in-place pile (2), it is detachably connected to the base plate (1) via the hanging rod; the hanging rod is formed by splicing a plurality of splicing rods (6) end to end in sequence.

3. The hole cleaning device for rotary bored pile according to claim 2, characterized in that: A threaded column (7) is formed on the bottom surface of the splicing rod (6), and a threaded hole groove (8) adapted to the threaded column (7) is formed on the top surface; A nut sleeve (9) integrally formed on the top surface of the base plate (1) is threadedly sleeved on the threaded column (7) on the bottom splicing rod (6); a through hole is reserved on the hanging plate (5) for the top splicing rod (6) to pass through, and a handle screw (10) is internally threadedly connected to the threaded hole groove (8) of the top splicing rod (6); the handle portion of the handle screw (10) is a polygonal plate structure and overlapped on the upper side of the hanging plate (5).

4. The hole cleaning device for rotary bored pile according to claim 1, characterized in that: The sludge dilution and stirring mechanism comprises a water delivery pipe (11), a water distribution pipe (12), a transfer pipe (13) and a rotation drive mechanism; the bottom of the water delivery pipe (11) is closed, and the top passes through and is rotatably connected to the middle of the base plate (1); the transfer pipe (13) is rotatably sleeved on the top of the water delivery pipe (11) and is fixed on the upper side of the base plate (1); a plurality of water distribution pipes (12) are connected to the side wall of the transfer pipe (13); a plurality of water spray holes are reserved on the side wall of the water distribution pipe (12), and a conical water spray port (14) is formed at the non-fixed end; the water delivery pipe (11) is driven to rotate by the rotation drive mechanism arranged on the base plate (1).

5. The hole cleaning device for rotary bored pile according to claim 4, characterized in that: The rotation drive mechanism includes a motor (15). After the motor (15) is fixedly mounted on the upper side of the base plate (1), an output shaft is drivingly connected to the water pipe (11).

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