Dredging device for cast-in-situ bored pile

Abstract

The utility model relates to the technical field of cast-in-place pile desilting, and discloses a cast-in-place pile desilting device which comprises a supporting bottom ring, supporting rods and a supporting plate, and is characterized in that the supporting rods are symmetrically and fixedly connected to the surface of the supporting bottom ring, and the supporting plate is fixedly connected to the top ends of the supporting rods; first screws are symmetrically and rotatably connected between the supporting plate and the supporting bottom ring, the surfaces of the first screws are sleeved with moving plates in a threaded mode, sediment at the bottom of the cast-in-place pile can be scattered, the desilting capacity is improved, and the problem that in the background technology, existing cast-in-place bored piles generally adopt a water flushing method for desilting, the desilting efficiency is high is solved. The problems that in the prior art, a well hole is washed through high-pressure water, sediments are turned upwards and brought out along with water flow and mud flow, the cleaning effect is poor only through the action of the water flow due to the fact that the density of the sediments is larger than that of water and wall protection mud, and the sediments which are not cleaned out settle at the bottom of the pile, and the bearing capacity of the cast-in-place pile is seriously affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place pile dredging, in particular to a bored cast-in-place pile dredging device. Background Art

[0002] A bored pile is a pile that is made by forming a pile hole in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, and placing a steel cage inside and pouring concrete. According to different hole-making methods, bored piles can be divided into several categories, such as sunken pipe bored piles, bored piles and excavated bored piles. Bored piles refer to piles that are made by drilling a pile hole with a drilling machine and pouring concrete in the hole. Depending on whether the drill bit of the drilling machine is constructed in the aquifer of the soil, it is divided into three methods: mud wall drilling, dry drilling and casing wall drilling. At present, bored piles are widely used in engineering projects, and it is generally necessary to desilt the inside of the bored pile before use.

[0003] Existing bored piles are generally desilted by water flushing, that is, high-pressure water is used to flush the wellbore to turn the sediment up and carry it out with the water flow and mud flow. Since the sediment is denser than water and the wall-protecting mud, the cleaning effect is not good if it is only relying on the action of water flow. The sediment that is not cleared out settles at the bottom of the pile, seriously affecting the bearing capacity of the bored pile. Utility Model Content

[0004] The utility model provides a bored cast-in-place pile dredging device, which has the beneficial effect of being able to break up the mud and sediment at the bottom of the bored pile and improving the dredging ability, and solves the problem mentioned in the above background technology that the existing bored cast-in-place piles generally use a water flushing method for dredging, that is, flushing the wellbore with high-pressure water to turn the sediment up and bring the sediment out with the water flow and mud flow. Since the sediment has a greater density than water and the wall protection mud, the cleaning effect is not good if it is only relying on the action of the water flow, and the sediment that is not cleared out settles at the bottom of the pile, seriously affecting the bearing capacity of the bored pile.

[0005] The utility model provides the following technical scheme: a bored pile dredging device comprises a supporting bottom ring, a supporting rod and a supporting plate, the surface of the supporting bottom ring is symmetrically fixedly connected with the supporting rod, the top end of the supporting rod is fixedly connected with the supporting plate, a first screw is symmetrically rotatably connected between the supporting plate and the supporting bottom ring, a movable plate is threadedly sleeved on the surface of the first screw, the movable plate and the supporting rod are slidably connected, a dredging pipe is fixedly connected to the bottom surface of the movable plate, an auger is rotatably connected to the inside of the dredging pipe, a first motor is fixedly installed on the surface of the movable plate, the output shaft of the first motor is fixedly connected to the auger, and a dredging pipe is also symmetrically fixedly connected to the surface of the dredging pipe.

[0006] As an optional solution for the bored pile desilting device of the utility model, wherein: a U-shaped frame is fixedly connected to the surface of the support plate, a second motor is fixedly installed on the surface of the U-shaped frame, an output shaft of the second motor is fixedly connected to a first gear, the top ends of the two first screw rods are fixedly connected to a second gear, and the two second gears are respectively meshed with the first gear.

[0007] As an optional solution for the bored pile dredging device of the utility model, the bottom end of the auger is fixedly connected to a fixing column, a rectangular block is symmetrically fixedly connected to the surface of the fixing column, a second screw is slidably connected to the surface of the rectangular block, two first nuts are threadedly sleeved on the surface of the second screw, and the two first nuts are respectively located on both sides of the rectangular block, and a scraper is fixedly connected to the end of the second screw.

[0008] As an optional solution for the bored pile desilting device of the utility model, the bottom end of the fixed column is fixedly connected to a mounting rod, a limiting ring is fixedly sleeved on the surface of the mounting rod, and a stirring head is fixedly connected to the surface of the mounting rod via a second nut.

[0009] As an optional solution of the bored pile desilting device of the utility model, the stirring head includes a symmetrically arranged fixed ring, a fixed cylinder located in the middle position, and a stirring blade fixedly connected between the fixed ring and the fixed cylinder, and the edge of the stirring blade is provided with a blade.

[0010] As an optional scheme for the bored pile dredging device of the utility model, wherein: the surface of the supporting bottom ring is fixedly connected with four rectangular hollow columns in a circular array, the interior of the rectangular hollow column is slidably connected with a moving column, the surface of the moving column is symmetrically fixedly connected with a limiting slider, the limiting slider and the rectangular hollow column are slidably connected, the surface of the moving column is threadedly connected with an adjusting screw, the lower end of the adjusting screw is fixedly connected with a chassis, the surface of the rectangular hollow column is threadedly connected with a fastening bolt, the bottom end of the fastening bolt passes through the surface of the rectangular hollow column, extends to the interior of the rectangular hollow column, and conflicts with the surface of the moving column.

[0011] The utility model has the following beneficial effects:

[0012] 1. The bored pile desilting device is provided with a first motor, an auger, a desilting pipe and a desilting pipe. When desilting the bored pile, the desilting pipe is placed in the bored pile, and the silt and other sediments in the bored pile can be discharged from the bored pile through the desilting pipe by the rotation of the auger.

[0013] 2. The bored pile desilting device is provided with a second motor, a first gear and a second gear. When in use, the second motor drives the first gear to rotate, and the rotation of the first gear can then drive the second gear to rotate, so that the desilting pipe can be raised and lowered, making it convenient to extend the desilting pipe into the bored pile.

[0014] 3. The bored pile dredging device is provided with a fixed column, a rectangular block, a second screw, a first nut and a scraper. The scraper can clean the sediment attached to the side wall surface near the bottom of the bored pile during the dredging process, thereby improving the dredging effect. By adjusting the extension length of the second screw, the position of the scraper can be adjusted according to the hole diameter of the bored pile, thereby facilitating the cleaning of the side walls of bored piles with different hole diameters.

[0015] 4. The bored pile desilting device can stir and crush the sediment at the bottom of the bored pile by setting stirring blades, making it easier to discharge the sediment at the bottom.

[0016] 5. The bored pile dredging device can be placed above the bored piles of different diameters by arranging a rectangular hollow column, a movable column, an adjusting screw, a chassis and a fastening bolt, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0019] Figure 3 It is a partial structural schematic diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the connection structure between the support bottom ring and the rectangular hollow column of the utility model.

[0021] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the desilting pipe of the utility model.

[0023] Figure 7 It is a schematic diagram of the connection structure of the second screw and the scraper in the utility model.

[0024] Figure 8 It is a schematic diagram of the connection and separation structure of the mounting rod and the stirring head in the utility model.

[0025] Fig. 9 It is a structural schematic diagram of the stirring head in the utility model.

[0026] In the figure: 1. support bottom ring; 2. support rod; 3. support plate; 4. U-shaped frame; 5. second motor; 6. first gear; 7. second gear; 8. first screw; 9. movable plate; 10. dredging pipe; 11. first motor; 12. auger; 13. dredging pipe; 14. fixed column; 15. rectangular block; 16. second screw; 17. scraper; 18. first nut; 19. mounting rod; 20. limiting ring; 21. stirring head; 211. fixed ring; 212. fixed cylinder; 213. stirring blade; 22. rectangular hollow column; 23. movable column; 24. limiting slider; 25. fastening bolt; 26. adjusting screw; 27. chassis; 28. second nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figures 1 to 9 The bored pile dredging device comprises a supporting bottom ring, a supporting rod and a supporting plate, the surface of the supporting bottom ring is symmetrically fixedly connected with the supporting rod, the top of the supporting rod is fixedly connected with the supporting plate, a first screw is symmetrically rotatably connected between the supporting plate and the supporting bottom ring, a movable plate is threadedly sleeved on the surface of the first screw, the movable plate and the supporting rod are slidably connected, a dredging pipe is fixedly connected to the bottom surface of the movable plate, an auger is rotatably connected inside the dredging pipe, a first motor is fixedly installed on the surface of the movable plate, the output shaft of the first motor is fixedly connected to the auger, and a dredging pipe is also symmetrically fixedly connected to the surface of the dredging pipe.

[0030] A U-shaped frame is fixedly connected to the surface of the support plate, a second motor is fixedly installed on the surface of the U-shaped frame, an output shaft of the second motor is fixedly connected to the first gear, the top ends of the two first screw rods are fixedly connected to the second gear, and the two second gears are respectively meshed with the first gear.

[0031] A U-shaped frame is fixedly connected to the surface of the support plate, a second motor is fixedly installed on the surface of the U-shaped frame, an output shaft of the second motor is fixedly connected to the first gear, the top ends of the two first screw rods are fixedly connected to the second gear, and the two second gears are respectively meshed with the first gear.

[0032] The bottom end of the fixed column is fixedly connected with a mounting rod, a limiting ring is fixedly sleeved on the surface of the mounting rod, and a stirring head is fixedly connected to the surface of the mounting rod through a second nut.

[0033] The stirring head comprises a symmetrically arranged fixed circular ring, a fixed cylinder located in the middle, and a stirring blade fixedly connected between the fixed circular ring and the fixed cylinder, and a blade is arranged on the edge of the stirring blade.

[0034] The working principle of this embodiment is as follows: when using this dredging device to dredge the bored pile, first select a stirring head of appropriate size according to the size of the pile opening, and fix the stirring head on the surface of the mounting rod by the cooperation of the second nut and the limiting ring, and adjust the position of the scraper according to the size of the pile opening. When adjusting, the first nuts on both sides can be rotated away from each other, and then the second screw rod can be moved so that the scraper can contact the side wall of the bored pile, and then the two first nuts are adjusted to be close to each other to fix the position of the second screw rod, and then the device can be placed at the position of the bored pile opening, and the position is adjusted to ensure that the dredging device can remain stable, and then the second motor on the surface of the U-shaped frame is started to run, and the operation of the second motor can then drive the second motor to run. When one gear rotates, the first gear rotates and then can drive the second gears on both sides to rotate synchronously. The second gear rotates and then can drive the two first screws to rotate. The two first screws rotate and then can drive the movable plate to move downward under the limit of the support rod. The movable plate moves downward and then can drive the dredging pipe to move downward, so that the dredging pipe extends into the interior of the cast-in-place pile and makes the dredging pipe close to the bottom position of the cast-in-place pile. Then start the first motor. The operation of the first motor can drive the auger to rotate. The rotation of the auger can then transport the mud inside the cast-in-place pile to the dredging pipe, and then discharge the mud from the cast-in-place pile through the dredging pipe. In this process, the sediment at the bottom of the cast-in-place pile can be stirred and crushed by the stirring head, which is convenient for the discharge of bottom sediment and mud.

[0035] By setting up a scraper, the sediment attached to the side wall surface near the bottom of the bored pile can be cleaned during the dredging process, thereby improving the dredging effect. By adjusting the extension length of the second screw, the position of the scraper can be adjusted according to the aperture of the bored pile, thereby facilitating the cleaning of the side walls of bored piles with different apertures.

[0036] Embodiment 2

[0037] This embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figures 1 to 9 The surface of the supporting bottom ring is fixedly connected with four rectangular hollow columns in a circular array, the interior of the rectangular hollow column is slidably connected with a moving column, the surface of the moving column is symmetrically fixedly connected with a limit slider, the limit slider and the rectangular hollow column are slidably connected, the surface of the moving column is threadedly connected with an adjusting screw, the lower end of the adjusting screw is fixedly connected with a chassis, the surface of the rectangular hollow column is threadedly connected with a fastening bolt, the bottom end of the fastening bolt penetrates the surface of the rectangular hollow column, extends to the interior of the rectangular hollow column, and conflicts with the surface of the moving column.

[0038] When placing the dredging device, the protruding length of the movable column in the rectangular hollow column can be adjusted according to the diameter of the cast-in-place pile and the actual situation of the nearby installation position, and then the fastening bolts can be tightened to fix the position of the movable column. The dredging device is then placed at the pile mouth position, and the adjusting screw is rotated so that the dredging device can be stably placed at the pile mouth position, which is convenient for subsequent dredging treatment.

[0039] By arranging a rectangular hollow column, a movable column, an adjusting screw rod, a chassis and a fastening bolt, the dredging device can be placed above cast-in-place piles of different diameters, and has a wide range of applications.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A bored pile desilting device, comprising a support bottom ring (1), a support rod (2) and a support plate (3), characterized in that: The surface of the support bottom ring (1) is symmetrically fixedly connected with a support rod (2), the top end of the support rod (2) is fixedly connected with a support plate (3), a first screw rod (8) is symmetrically rotatably connected between the support plate (3) and the support bottom ring (1), a movable plate (9) is threadedly sleeved on the surface of the first screw rod (8), the movable plate (9) and the support rod (2) are slidably connected, a dredging pipe (10) is fixedly connected to the bottom surface of the movable plate (9), the interior of the dredging pipe (10) is rotatably connected with an auger (12), a first motor (11) is fixedly mounted on the surface of the movable plate (9), the output shaft of the first motor (11) is fixedly connected to the auger (12), and a dredging pipe (13) is also symmetrically fixedly connected to the surface of the dredging pipe (10).

2. The bored pile desilting device according to claim 1, characterized in that: A U-shaped frame (4) is fixedly connected to the surface of the support plate (3), a second motor (5) is fixedly installed on the surface of the U-shaped frame (4), an output shaft of the second motor (5) is fixedly connected to a first gear (6), the top ends of the two first screw rods (8) are fixedly connected to a second gear (7), and the two second gears (7) are respectively meshed with the first gear (6).

3. The bored pile desilting device according to claim 1, characterized in that: The bottom end of the auger (12) is fixedly connected to a fixing column (14), a rectangular block (15) is symmetrically fixedly connected to the surface of the fixing column (14), a second screw rod (16) is slidably connected to the surface of the rectangular block (15), two first nuts (18) are threadedly sleeved on the surface of the second screw rod (16), and the two first nuts (18) are respectively located on two sides of the rectangular block (15), and a scraper (17) is fixedly connected to the end of the second screw rod (16).

4. The bored pile desilting device according to claim 3, characterized in that: The bottom end of the fixed column (14) is fixedly connected to a mounting rod (19), a limiting ring (20) is fixedly sleeved on the surface of the mounting rod (19), and a stirring head (21) is fixedly connected to the surface of the mounting rod (19) via a second nut (28).

5. The bored pile desilting device according to claim 4, characterized in that: The stirring head (21) comprises a symmetrically arranged fixed ring (211), a fixed cylinder (212) located in the middle, and a stirring blade (213) fixedly connected between the fixed ring (211) and the fixed cylinder (212), and a blade is arranged on the edge of the stirring blade (213).

6. The bored pile desilting device according to claim 5, characterized in that: The surface of the supporting bottom ring (1) is fixedly connected with four rectangular hollow columns (22) in a circular array, the interior of the rectangular hollow column (22) is slidably connected with a moving column (23), the surface of the moving column (23) is symmetrically fixedly connected with a limit slider (24), the limit slider (24) and the rectangular hollow column (22) are slidably connected, the surface of the moving column (23) is threadedly connected with an adjusting screw (26), the lower end of the adjusting screw (26) is fixedly connected with a chassis (27), the surface of the rectangular hollow column (22) is threadedly connected with a fastening bolt (25), the bottom end of the fastening bolt (25) passes through the surface of the rectangular hollow column (22), extends to the interior of the rectangular hollow column (22), and conflicts with the surface of the moving column (23).

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