A slurry wall drilling sediment treatment device for building pile foundation and a use method thereof

Abstract

The application relates to the field of drilling sediment treatment, in particular to a mud wall protection drilling sediment treatment device for building pile foundation, which comprises a supporting cylinder, the lower part of the inner wall of the supporting cylinder is fixedly connected with a partition plate, the inner wall of the supporting cylinder is fixedly connected with a motor, and the top of the partition plate is movably connected with the inner wall of the supporting cylinder with a wall protection mechanism. The mud wall protection drilling sediment treatment device for building pile foundation and the using method are composed of the wall protection mechanism, a residue removing mechanism and a water spraying mechanism; the motor drives the Jiaolong rod to rotate, the arc-shaped guide plate rotates synchronously, the plane at the bottom of the arc-shaped guide plate removes the mud residue adhered to the bottom of the hole at this time, the removed mud residue gradually rises to the position of the Jiaolong rod along the arc surface of the arc-shaped guide plate in the rotating process, the mud residue in the hole bottom is crushed and transported to the upper part of the Jiaolong sleeve in the rotating process of the Jiaolong rod, and the mud residue is drawn out through the residue drawing pipe, so that the sticky mud residue is prevented from adhering to the hole bottom and being inconvenient to remove, and the removal quality is improved.

Description

Technical Field

[0001] This invention relates to the field of borehole sediment treatment, specifically to a device and method for treating borehole sediment for building pile foundations using mud wall protection. Background Technology

[0002] When bored piles are used in building pile foundation construction, if mud slurry is used for wall protection, after the hole is formed and the reinforcing cage is placed, some of the suspended particulate matter in the mud slurry will settle at the bottom of the hole due to its own weight. At this time, it is necessary to clean the bottom of the hole using a sediment treatment device.

[0003] An existing patent (publication number: CN108951634A) discloses a mud wall protection drilling sediment treatment device for building pile foundation, including a building foundation and a No. 1 robotic arm, with protective walls fixedly installed at both ends of the inner surface of the building foundation. In the process of implementing this solution, the inventors discovered the following problems in the existing technology that have not been adequately addressed: 1. During use, the borehole sediment treatment device uses a combination of a straight air pipe and a branch air pipe to blow air into the bottom of the borehole to disturb the sediment, which is then extracted by a suction pipe. Due to the large amount of sediment at the bottom of the borehole, the air pressure in the straight air pipe and branch air pipe is too low to blow up the sediment. When the air pressure in the straight air pipe and branch air pipe is high, the blown air easily disturbs the inner wall of the borehole bottom, affecting the stability of the borehole wall. In addition, some mud is highly viscous and easily adheres to the bottom of the borehole, making air blowing alone inefficient. 2. In construction environments with good geological conditions, in order to improve construction efficiency, when mud slurry is used for wall protection, it is generally not necessary to install a separate protective sleeve during the borehole cleaning process. In this case, the borehole sediment cleaning device is prone to disturbing the borehole wall during the lowering process, affecting the quality of the borehole. Summary of the Invention

[0004] The purpose of this invention is to provide a mud-wall drilling sediment treatment device and its usage method for building pile foundations, to solve the problems mentioned in the background art: 1. Some existing mud-wall drilling sediment treatment devices use gas to blow away sediment at the bottom of the hole, and the blown gas easily disturbs the hole wall; 2. Some existing mud-wall drilling sediment treatment devices easily disturb the hole wall during the lowering process. To achieve the above objectives, this invention provides the following technical solution: A mud-wall drilling sediment treatment device for building pile foundations, comprising a support cylinder, a partition plate fixedly connected to the lower part of the inner wall of the support cylinder, a motor fixedly connected to the inner wall of the support cylinder, a wall protection mechanism movably connected between the top of the partition plate and the inner wall of the support cylinder, and one side of the wall protection mechanism fixedly connected to the rotating end of the motor;

[0005] The partition is rotatably connected to the middle of the auger rod, the top of the auger rod is fixedly connected to the rotating end of the motor, the bottom of the support cylinder is rotatably connected to the guide sleeve that cooperates with the auger rod, and a slag removal mechanism is movably connected between the guide sleeve and the auger rod.

[0006] A water spraying mechanism is movably connected to the outer wall of the lower part of the support cylinder.

[0007] Preferably, the wall protection mechanism includes a main gear, which is fixedly sleeved on the rotating end of the motor, and a driven gear is rotatably connected to the top of the partition, with the right side of the driven gear meshing with the left side of the main gear;

[0008] The outer wall of the support cylinder is provided with a transmission ring groove, and the top and bottom of the inner wall of the transmission ring groove are provided with positioning ring grooves. A support ring is rotatably connected between the two positioning ring grooves. A toothed ring is fixedly connected to the inner ring of the support ring. A rectangular groove is provided on the side wall of the transmission ring groove. The gear passes through the rectangular groove from the left side and meshes with the inner ring of the toothed ring.

[0009] The outer ring of the support ring has three arc-shaped grooves equidistantly spaced along its circumference. A plastering plate is hinged inside the arc-shaped groove. A sliding groove is formed on the inner wall of the arc-shaped groove. A sliding rod is slidably connected inside the sliding groove. A compression spring is movably connected between one end of the sliding rod and the inner wall of the sliding groove. A connecting rod is hinged through the sliding groove at the other end of the sliding rod. A sliding sleeve is fixedly connected to the side wall of the plastering plate. One end of the connecting rod is slidably connected inside the sliding sleeve.

[0010] Guide rods are symmetrically fixedly connected to the inner wall of the arc-shaped groove. A limit hoop is slidably connected between the two guide rods. A return spring that cooperates with the limit hoop is movably sleeved on the surface of the guide rod. The side wall of the limit hoop overlaps the side wall of the slide rod. A retaining ring that cooperates with the limit hoop is fixedly sleeved on the side wall of the slide rod.

[0011] Preferably, a positioning bearing is fixedly sleeved on the inner wall of the positioning ring groove, and the inner rings of the two positioning bearings are fixedly connected to the outer ring of the support ring.

[0012] Preferably, the slag removal mechanism includes a auger sleeve, the lower part of which is rotatably connected to the upper part of the inner wall of the guide sleeve, the top of which is fixedly connected to the bottom of the partition, the auger sleeve and the auger rod are coaxially arranged, and a slag suction pipe that cooperates with the auger sleeve is fixedly connected to the right side of the partition, the top of which extends to the upper part of the support cylinder.

[0013] The lower part of the auger rod is fixedly connected to a support ring, and support rods are fixedly connected to all four sides of the support ring. One end of the support rod is fixedly connected to the inner wall of the guide sleeve. Twelve triangular guide bars are fixedly connected at equal intervals along the circumference at the bottom of the guide sleeve.

[0014] The bottom of the jiaolong rod is fixedly connected with four arc-shaped guide plates at equal intervals along the circumference.

[0015] Preferably, the bottom of the arc-shaped guide plate is a flat surface, and the bottom of the arc-shaped guide plate has a chamfer.

[0016] Preferably, the water spraying mechanism includes a water supply pipe, the upper part of which is fixedly connected to the upper part of the support cylinder, and the lower part of which is movably connected to the right side of the partition.

[0017] A connecting ring groove is provided on the outer wall of the lower part of the support cylinder. A water storage ring is fixedly connected between the top and bottom of the inner wall of the connecting ring groove. The inner ring of the water storage ring is fixedly connected to the lower end of the water supply pipe. An annular connecting groove is provided in the middle of the outer ring of the water storage ring. A sealing ring is rotatably connected inside the annular connecting groove. Twelve nozzles are fixedly connected at equal intervals along the circumference of the outer ring of the sealing ring.

[0018] Preferably, the sidewalls of the sealing ring are symmetrically fixedly connected with connecting bearings, and the outer rings of the two connecting bearings are fixedly connected to the inner wall of the water storage ring.

[0019] A method for using a mud-wall drilling sediment treatment device for building pile foundations includes the following steps:

[0020] S1. When using this mud wall protection drilling sediment treatment device, first fix the support cylinder to the hoist boom, slowly insert the support cylinder into the borehole, then start the motor to rotate counterclockwise and deliver clean water into the water supply pipe. At this time, the clean water enters the water storage ring. As the clean water enters the nozzle from the sealing ring and sprays out, under the reaction force of the water flow, the sealing ring rotates with the twelve nozzles to spray water to wet the borehole wall.

[0021] S2. Simultaneously, during the rotation of the motor, the main gear meshes with the driven gear, causing the driven gear to mesh with the toothed ring on the support ring. Then, the support ring begins to rotate. Under the action of centrifugal force, the limiting hoop inside the support ring slides between the two guide rods, causing the limiting hoop to release the limiting ring on the slide rod. At this time, the compression spring presses the slide rod to slide out from inside the slide groove, causing one end of the slide rod to press against the other end of the grouting plate through the connecting rod and open from inside the arc groove. As the support ring rotates, the side wall of the grouting plate coats the wet hole wall to protect the wall.

[0022] S3. As the support cylinder gradually moves down to the bottom of the borehole, the motor drives the auger rod to rotate. During this process, the support rod drives the guide sleeve to rotate synchronously, causing the twelve triangular guide bars at the bottom of the guide sleeve to rotate synchronously. During the rotation of the arc surface of the side wall of the twelve triangular guide bars, the mud at the bottom of the hole is guided, causing the mud to flow and gather towards the four arc-shaped guide plates.

[0023] S4. At the same time, the auger rod rotates synchronously with the four arc-shaped guide plates. At this time, the flat surface at the bottom of the arc-shaped guide plates removes the mud adhering to the bottom of the hole. The removed mud gradually rises to the position of the auger rod along the arc surface of the arc-shaped guide plates during the rotation. During the rotation of the auger rod, the mud in the bottom of the hole is crushed and transported to the upper part of the auger sleeve, and finally extracted by the slag extraction pipe.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] In this invention, the auger rod, arc-shaped guide plate, and slag extraction pipe are used in combination. The auger rod is rotated by a motor, and the arc-shaped guide plate rotates synchronously. At this time, the flat surface at the bottom of the arc-shaped guide plate removes the mud adhering to the bottom of the hole. The removed mud gradually rises to the position of the auger rod along the arc surface of the arc-shaped guide plate during the rotation. During the rotation of the auger rod, the mud in the bottom of the hole is crushed and transported to the upper part of the auger sleeve and extracted by the slag extraction pipe. This avoids sticky mud adhering to the bottom of the hole and making it inconvenient to remove, thus improving the cleaning quality.

[0026] In this invention, through the coordinated use of components such as the grouting plate, the limiting clamp, and the sliding rod, when the main gear rotates with the motor and meshes with the driven gear, the driven gear meshes with the toothed ring on the support ring for transmission. Under the action of centrifugal force, the limiting clamp inside the support ring slides between the two guide rods and releases the limiting on the retaining ring on the sliding rod. At this time, the compression spring presses the sliding rod to slide out from inside the groove, so that one end of the sliding rod presses against one end of the grouting plate through the connecting rod and opens from inside the arc-shaped groove. This allows the grouting plate to coat the moistened inner wall of the borehole as it rotates counterclockwise, reducing the gap between the mud and sand on the inner wall of the borehole, improving the stability of the borehole wall and the quality of the borehole formation, and avoiding disturbance to the inner wall of the borehole caused by the use of the equipment.

[0027] In this invention, through the coordinated use of components such as guide sleeves, triangular guide bars, and support rods, when the motor drives the auger rod to rotate, the support rod drives the guide sleeve to rotate synchronously, causing the twelve triangular guide bars at the bottom of the guide sleeve to rotate synchronously. During the rotation of the arc-shaped sidewalls of the twelve triangular guide bars, the mud at the bottom of the hole is guided, causing the mud to flow and gather towards the four arc-shaped guide plates. In conjunction with the rotation of the arc-shaped guide plates, the extraction efficiency of the mud can be further improved. Attached Figure Description

[0028] Figure 1 This is a front view of the structure of the present invention;

[0029] Figure 2 This is a front sectional view of the structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0031] Figure 4 For the present invention Figure 2 Enlarged view of the structure at point B;

[0032] Figure 5 This is a top sectional view of a portion of the main gear and driven gear of the present invention;

[0033] Figure 6 This is a top sectional view showing the positions of the support ring and the plastering board of the present invention;

[0034] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C;

[0035] Figure 8 This is a bottom view showing the positions of the triangular guide bar and the arc-shaped guide plate of the present invention;

[0036] Figure 9 This is a top sectional view of the sealing ring and nozzle positions of the present invention;

[0037] Figure 10 This is a perspective view of the arc-shaped guide plate of the present invention.

[0038] In the diagram: 1. Support cylinder; 2. Partition plate; 3. Motor; 4. Wall protection mechanism; 401. Main gear; 402. Driven gear; 403. Transmission ring groove; 404. Positioning ring groove; 405. Support ring; 406. Gear ring; 407. Rectangular groove; 408. Arc groove; 409. Plastering board; 410. Slide groove; 411. Slide rod; 412. Compression spring; 413. Connecting rod; 414. Sliding sleeve; 415. Guide rod; 41 6. Limiting hoop; 417. Return spring; 418. Retaining ring; 5. Auger rod; 6. Guide sleeve; 7. Slag removal mechanism; 701. Auger sleeve; 702. Slag suction pipe; 703. Support ring; 704. Support rod; 705. Triangular guide bar; 706. Arc-shaped guide plate; 8. Water spraying mechanism; 801. Water supply pipe; 802. Connecting ring groove; 803. Water storage ring; 804. Annular connecting groove; 805. Sealing ring; 806. Nozzle. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1 to 5This invention provides a technical solution: a mud wall protection drilling sediment treatment device for building pile foundations, comprising a support cylinder 1, a partition 2 fixedly connected to the lower part of the inner wall of the support cylinder 1, a motor 3 fixedly connected to the inner wall of the support cylinder 1, a wall protection mechanism 4 movably connected between the top of the partition 2 and the inner wall of the support cylinder 1, and one side of the wall protection mechanism 4 fixedly connected to the rotating end of the motor 3. It should be noted that a bracket is fixedly connected to the middle of the motor 3, and the bracket is fixedly connected to the inner wall of the support cylinder 1.

[0041] A auger rod 5 is rotatably connected to the middle of the partition 2. The top of the auger rod 5 is fixedly connected to the rotating end of the motor 3. A guide sleeve 6 that cooperates with the auger rod 5 is rotatably connected to the bottom of the support cylinder 1. A slag removal mechanism 7 is movably connected between the guide sleeve 6 and the auger rod 5.

[0042] A water spraying mechanism 8 is movably connected to the outer wall of the lower part of the support cylinder 1.

[0043] In this embodiment, as Figure 1 and Figure 2 As shown, the wall protection mechanism 4 includes a main gear 401, which is fixedly sleeved on the rotating end of the motor 3. A driven gear 402 is rotatably connected to the top of the partition 2, and the right side of the driven gear 402 meshes with the left side of the main gear 401.

[0044] The outer wall of the support cylinder 1 is provided with a transmission ring groove 403. The top and bottom of the inner wall of the transmission ring groove 403 are provided with positioning ring grooves 404. A support ring 405 is rotatably connected between the two positioning ring grooves 404. A toothed ring 406 is fixedly connected to the inner ring of the support ring 405. A rectangular groove 407 is provided on the side wall of the transmission ring groove 403. The rectangular groove 407 passes through the left side of the gear 402 and meshes with the inner ring of the toothed ring 406.

[0045] The outer ring of the support ring 405 has three arc-shaped grooves 408 equidistantly spaced along its circumference. A plastering plate 409 is hinged inside each arc-shaped groove 408. A sliding groove 410 is formed on the inner wall of each arc-shaped groove 408. A sliding rod 411 is slidably connected inside the sliding groove 410. A compression spring 412 is movably connected between one end of the sliding rod 411 and the inner wall of the sliding groove 410. The other end of the sliding rod 411 passes through the sliding groove 410 and is hinged to a connecting rod 413. A sliding sleeve 414 is fixedly connected to the side wall of the plastering plate 409. One end of the connecting rod 413 is slidably connected inside the sliding sleeve 414. It should be noted that a movable groove is formed in the middle of the sliding sleeve 414, and a movable rod is hinged to one end of the connecting rod 413, with the movable rod slidably connected inside the movable groove.

[0046] Guide rods 415 are symmetrically fixedly connected to the inner wall of the arc-shaped groove 408. A limit clamp 416 is slidably connected between the two guide rods 415. A return spring 417 that cooperates with the limit clamp 416 is movably sleeved on the surface of the guide rod 415. The side wall of the limit clamp 416 overlaps the side wall of the slide rod 411. A retaining ring 418 that cooperates with the limit clamp 416 is fixedly sleeved on the side wall of the slide rod 411. It should be noted that: a stop block is fixedly connected to one end of the guide rod 415, and a return spring 417 is set between the stop block and the limiting hoop 416, so that the return spring 417 presses against the limiting hoop 416 and overlaps the side wall of the slide rod 411. At the same time, the limiting hoop 416 is set between the stop block and the connecting rod 413 to limit the movement of the slide rod 411. When the support ring 405 rotates, the centrifugal force generated causes the limiting hoop 416 to slide between the two guide rods 415. At this time, the limiting hoop 416 releases the limitation on the retaining ring 418 on the slide rod 411, so that the slide rod 411 moves and presses against one end of the plastering plate 409 through the connecting rod 413 and opens inside the arc groove 408. The side wall of the limiting hoop 416 is provided with steel balls that cooperate with the retaining ring 418 to reduce the frictional resistance between the limiting hoop 416 and the retaining ring 418 when the limiting hoop 416 moves.

[0047] In this embodiment, as Figure 1 and Figure 2 As shown, positioning bearings are fixedly sleeved on the inner wall of the positioning ring groove 404, and the inner rings of both positioning bearings are fixedly connected to the outer ring of the support ring 405. It should be noted that the positioning bearings are designed as sealed bearings, enabling the support ring 405 to rotate stably within the transmission ring groove 403.

[0048] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the slag removal mechanism 7 includes a auger sleeve 701. The lower part of the auger sleeve 701 is rotatably connected to the upper part of the inner wall of the guide sleeve 6. The top of the auger sleeve 701 is fixedly connected to the bottom of the partition plate 2. The auger sleeve 701 and the auger rod 5 are coaxially arranged. A slag suction pipe 702 that cooperates with the auger sleeve 701 is fixedly connected to the right side of the partition plate 2. The top of the slag suction pipe 702 extends to the upper part of the support cylinder 1. It should be noted that the outer and inner rings of the upper part of the guide sleeve 6 are both fixedly connected to support bearings. The two support bearings are fixedly connected to the lower part of the support cylinder 1 and the lower part of the auger sleeve 701, respectively.

[0049] A support ring 703 is fixedly connected to the lower part of the auger rod 5. Support rods 704 are fixedly connected to all four sides of the support ring 703. One end of each support rod 704 is fixedly connected to the inner wall of the guide sleeve 6. Twelve triangular guide bars 705 are fixedly connected at equal intervals along the circumference of the bottom of the guide sleeve 6. It should be noted that the arc-shaped surface of the triangular guide bars 705 guides the mud during rotation of the guide sleeve 6, causing some of the mud to converge towards the center through the gap between two triangular guide bars 705, thus improving mud removal efficiency.

[0050] Four arc-shaped guide plates 706 are fixedly connected at equal intervals along the circumference at the bottom of the jiaolong pole 5.

[0051] In this embodiment, as Figure 1 and Figure 2 As shown, the bottom of the arc-shaped guide plate 706 is set as a flat surface, and a chamfer is provided at the bottom of the arc-shaped guide plate 706. It should be noted that: by setting the flat surface at the bottom of the arc-shaped guide plate 706 and cooperating with the chamfer, the arc-shaped guide plate 706 can quickly scoop up the mud adhering to the bottom of the hole as the auger rod 5 rotates. The scooped mud is transported upward along the arc surface of the arc-shaped guide plate 706 to the position of the auger rod 5. The auger rod 5 and the auger sleeve 701 work together to transport the mud upward, improving the cleaning efficiency.

[0052] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the water spraying mechanism 8 includes a water supply pipe 801. The upper part of the water supply pipe 801 is fixedly connected to the upper part of the support cylinder 1, and the lower part of the water supply pipe 801 is movably connected to the right side of the partition plate 2. It should be noted that the top of the water supply pipe 801 is fixedly connected to an external clean water tank. Clean water is pumped into the interior of the water supply pipe 801 by a water pump. The water pressure here is relatively low, and the water flow will not interfere with the hole wall after it is sprayed out.

[0053] A connecting ring groove 802 is provided on the outer wall of the lower part of the support cylinder 1. A water storage ring 803 is fixedly connected between the top and bottom of the inner wall of the connecting ring groove 802. The inner ring of the water storage ring 803 is fixedly connected to the lower end of the water supply pipe 801. An annular connecting groove 804 is provided in the middle of the outer ring of the water storage ring 803. A sealing ring 805 is rotatably connected inside the annular connecting groove 804. Twelve nozzles 806 are fixedly connected at equal intervals along the circumference of the outer ring of the sealing ring 805. It should be noted that the cross-section of the nozzle 806 is arc-shaped, so that the water sprayed from the nozzle 806 rotates on the water storage ring 803 under the reaction force, carrying the sealing ring 805, and the clean water can be evenly sprayed on the inner wall of the borehole.

[0054] In this embodiment, as Figure 1 and Figure 2 As shown, the sidewall of the sealing ring 805 is symmetrically fixedly connected with connecting bearings, and the outer rings of the two connecting bearings are fixedly connected to the inner wall of the water storage ring 803.

[0055] In this embodiment, as Figures 1 to 5 As shown, a method for using a mud-wall drilling sediment treatment device for building pile foundations includes the following steps:

[0056] S1. When using this mud wall protection drilling sediment treatment device, first fix the support cylinder 1 to the hoist rod, slowly insert the support cylinder 1 into the borehole, then start the motor 3 to rotate counterclockwise and deliver clean water into the water pipe 801. At this time, the clean water enters the water storage ring 803. As the clean water enters the nozzle 806 from the sealing ring 805 and sprays out, under the reaction force of the water flow, the sealing ring 805 rotates with the twelve nozzles 806 to spray water to wet the borehole wall.

[0057] S2. Simultaneously, during the rotation of motor 3, the main gear 401 meshes with the driven gear 402, causing the driven gear 402 to mesh with the toothed ring 406 on the support ring 405. Then, the support ring 405 begins to rotate. Under the action of centrifugal force, the limiting hoop 416 inside the support ring 405 slides between the two guide rods 415, causing the limiting hoop 416 to release the limiting of the upper retaining ring 418 on the slide rod 411. At this time, the compression spring 412 presses the slide rod 411 to slide out from inside the slide groove 410, causing one end of the slide rod 411 to press against the other end of the grouting plate 409 through the connecting rod 413 and open from inside the arc groove 408. As the support ring 405 rotates, the side wall of the grouting plate 409 coats the wetted hole wall to protect the wall.

[0058] S3. As the support cylinder 1 gradually moves down to the bottom of the borehole, the motor 3 drives the auger rod 5 to rotate, and the support rod 704 drives the guide sleeve 6 to rotate synchronously, so that the twelve triangular guide bars 705 at the bottom of the guide sleeve 6 rotate synchronously. During the rotation of the side arc surface of the twelve triangular guide bars 705, the mud at the bottom of the hole is guided, so that the mud flows and gathers towards the four arc-shaped guide plates 706.

[0059] S4. Simultaneously, the auger rod 5 rotates synchronously with the four arc-shaped guide plates 706. At this time, the flat surface at the bottom of the arc-shaped guide plates 706 removes the mud adhering to the bottom of the hole. The removed mud gradually rises to the position of the auger rod 5 along the arc surface of the arc-shaped guide plates 706 during the rotation. During the rotation of the auger rod 5, the mud in the bottom of the hole is crushed and transported to the upper part of the auger sleeve 701, and finally extracted by the slag extraction pipe 702.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mud-wall drilling sediment treatment device for building pile foundations, comprising a support cylinder (1), characterized in that: A partition plate (2) is fixedly connected to the lower part of the inner wall of the support cylinder (1), and a motor (3) is fixedly connected to the inner wall of the support cylinder (1). A protective wall mechanism (4) is movably connected between the top of the partition plate (2) and the inner wall of the support cylinder (1). One side of the protective wall mechanism (4) is fixedly connected to the rotating end of the motor (3). The middle part of the partition (2) is rotatably connected to the auger rod (5), the top of the auger rod (5) is fixedly connected to the rotating end of the motor (3), the bottom of the support cylinder (1) is rotatably connected to the guide sleeve (6) that cooperates with the auger rod (5), and the guide sleeve (6) and the auger rod (5) are movably connected to the slag removal mechanism (7). A water spraying mechanism (8) is movably connected to the outer wall of the lower part of the support cylinder (1); The wall protection mechanism (4) includes a main gear (401), which is fixedly sleeved on the rotating end of the motor (3). The top of the partition (2) is rotatably connected to a driven gear (402), and the right side of the driven gear (402) meshes with the left side of the main gear (401). The outer wall of the support cylinder (1) is provided with a transmission ring groove (403), and the top and bottom of the inner wall of the transmission ring groove (403) are provided with positioning ring grooves (404). A support ring (405) is rotatably connected between the two positioning ring grooves (404). A toothed ring (406) is fixedly connected to the inner ring of the support ring (405). A rectangular groove (407) is provided on the side wall of the transmission ring groove (403). The gear (402) passes through the rectangular groove (407) from the left side and meshes with the inner ring of the toothed ring (406). The outer ring of the support ring (405) has three arc-shaped grooves (408) equidistantly spaced along the circumference. A plastering plate (409) is hinged inside the arc-shaped groove (408). A sliding groove (410) is provided on the inner wall of the arc-shaped groove (408). A sliding rod (411) is slidably connected inside the sliding groove (410). A compression spring (412) is movably connected between one end of the sliding rod (411) and the inner wall of the sliding groove (410). A connecting rod (413) is hinged through the sliding groove (410) at the other end of the sliding rod (411). A sliding sleeve (414) is fixedly connected to the side wall of the plastering plate (409). One end of the connecting rod (413) is slidably connected inside the sliding sleeve (414). Guide rods (415) are symmetrically fixedly connected to the inner wall of the arc-shaped groove (408). A limit hoop (416) is slidably connected between the two guide rods (415). A return spring (417) that cooperates with the limit hoop (416) is movably sleeved on the surface of the guide rod (415). The side wall of the limit hoop (416) overlaps the side wall of the slide rod (411). A retaining ring (418) that cooperates with the limit hoop (416) is fixedly sleeved on the side wall of the slide rod (411).

2. The mud wall protection drilling sediment treatment device for building pile foundations according to claim 1, characterized in that: The inner wall of the positioning ring groove (404) is fixedly fitted with a positioning bearing, and the inner rings of the two positioning bearings are fixedly connected to the outer ring of the support ring (405).

3. The mud wall protection drilling sediment treatment device for building pile foundations according to claim 2, characterized in that: The slag removal mechanism (7) includes a auger sleeve (701), the lower part of which is rotatably connected to the upper part of the inner wall of the guide sleeve (6), the top of which is fixedly connected to the bottom of the partition (2), the auger sleeve (701) and the auger rod (5) are coaxially arranged, and a slag suction pipe (702) that cooperates with the auger sleeve (701) is fixedly connected to the right side of the partition (2), the top of which extends to the upper part of the support cylinder (1); The lower part of the auger rod (5) is fixedly connected to a support ring (703), and support rods (704) are fixedly connected around the support ring (703). One end of the support rod (704) is fixedly connected to the inner wall of the guide sleeve (6), and twelve triangular guide bars (705) are fixedly connected at equal intervals along the circumference at the bottom of the guide sleeve (6). The bottom of the auger rod (5) is fixedly connected with four arc-shaped guide plates (706) at equal intervals along the circumference.

4. The mud wall protection drilling sediment treatment device for building pile foundations according to claim 3, characterized in that: The bottom of the arc-shaped guide plate (706) is set as a plane, and the bottom of the arc-shaped guide plate (706) is chamfered.

5. The mud wall protection drilling sediment treatment device for building pile foundations according to claim 4, characterized in that: The water spraying mechanism (8) includes a water supply pipe (801), the upper part of which is fixedly connected to the upper part of the support cylinder (1), and the lower part of which is movably connected to the right side of the partition (2). The lower outer wall of the support cylinder (1) is provided with a connecting ring groove (802). A water storage ring (803) is fixedly connected between the top and bottom of the inner wall of the connecting ring groove (802). The inner ring of the water storage ring (803) is fixedly connected to the lower end of the water supply pipe (801). An annular connecting groove (804) is provided in the middle of the outer ring of the water storage ring (803). A sealing ring (805) is rotatably connected inside the annular connecting groove (804). Twelve nozzles (806) are fixedly connected at equal intervals along the circumference of the outer ring of the sealing ring (805).

6. The mud wall protection drilling sediment treatment device for building pile foundations according to claim 5, characterized in that: The sealing ring (805) has symmetrically fixed connecting bearings on its sidewalls, and the outer rings of the two connecting bearings are fixedly connected to the inner wall of the water storage ring (803).

7. The method of using the mud wall protection drilling sediment treatment device for building pile foundations according to claim 6, characterized in that: Includes the following steps: S1. When using this mud wall protection drilling sediment treatment device, first fix the support cylinder (1) to the hoist rod, slowly insert the support cylinder (1) into the borehole, then start the motor (3) to rotate counterclockwise and deliver clean water into the water pipe (801). At this time, the clean water enters the water storage ring (803). As the clean water enters the nozzle (806) from the sealing ring (805) and sprays out, under the reaction force of the water flow, the sealing ring (805) rotates with the twelve nozzles (806) to spray water to wet the borehole wall. S2. Simultaneously, during the rotation of the motor (3), the main gear (401) meshes with the driven gear (402), causing the driven gear (402) to mesh with the toothed ring (406) on the support ring (405). Then, the support ring (405) begins to rotate. Under the action of centrifugal force, the limiting hoop (416) in the support ring (405) slides between the two guide rods (415), causing the limiting hoop (416) to release the limiting of the retaining ring (418) on the slide rod (411). At this time, the compression spring (412) presses the slide rod (411) to slide out from the inside of the slide groove (410), causing one end of the slide rod (411) to press the other end of the grouting plate (409) through the connecting rod (413) to open from the inside of the arc groove (408). As the support ring (405) rotates, the side wall of the grouting plate (409) coats the wetted hole wall to protect the wall. S3. As the support cylinder (1) gradually moves down to the bottom of the borehole, the motor (3) rotates with the auger rod (5), and the support rod (704) rotates synchronously with the guide sleeve (6), so that the twelve triangular guide bars (705) at the bottom of the guide sleeve (6) rotate synchronously. During the rotation of the side arc surface of the twelve triangular guide bars (705), the mud at the bottom of the hole is guided, so that the mud flows and gathers towards the four arc-shaped guide plates (706). S4. At the same time, the auger rod (5) rotates synchronously with four arc-shaped guide plates (706). At this time, the flat surface at the bottom of the arc-shaped guide plate (706) removes the mud adhering to the bottom of the hole. The mud removed gradually rises to the position of the auger rod (5) along the arc surface of the arc-shaped guide plate (706) during the rotation. During the rotation of the auger rod (5), the mud in the bottom of the hole is crushed and transported to the upper part of the auger sleeve (701), and finally extracted by the slag extraction pipe (702).

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