A kind of bored pile construction device and method

Abstract

The present invention relates to the technical field of bored pile construction, and specifically to a bored pile hole construction device and method. The device comprises a vehicle body, a lifting member is installed at the right edge position of the upper end of the vehicle body, a driving member is arranged at the right end of the movable part of the lifting member, a first screw rod is installed at the lower end of the driving member, a drill bit is arranged at the lower end of the first screw rod, an outer cylinder is installed at the lower end of the driving member, a conical cylinder is arranged in communication with the lower end of the outer cylinder, an I-shaped inner cylinder is arranged on the inner wall of the outer cylinder, a fixing plate is arranged at the right end of the lower part of the lifting member, a positioning cylinder is installed at the right end of the fixing plate, a recovery member is installed at the upper end of the vehicle body, an outlet portion of the recovery member passes through the lifting member and is connected to the positioning cylinder, a recovery pipe is arranged at the upper end of the inlet portion of the recovery member, and the recovery pipe passes through the lifting member and is connected to the driving member. This design realizes timely recovery and collection of mud materials, effectively reduces the probability of mud materials returning to the drilled hole, and effectively ensures the quality of the hole.

Description

Technical Field

[0001] The invention relates to a bored pile hole construction device and method, belonging to the technical field of bored pile construction. Background Art

[0002] Bored piles are bored directly at the designed soil layer position. The cross-section of the bored pile is circular. After the hole is formed, a steel cage is placed in the hole and concrete is poured. It is often used in the construction field. Generally, a bored pile hole construction device is used to realize the hole opening at the designed soil layer position. At present, the bored pile hole construction device generally adopts a rotary drilling structure to perform the drilling operation. However, the mud generated during the working process of this drilling method is generally directly discharged to the ground near the borehole, and is easy to accumulate on the upper part of the borehole, resulting in a high probability that the mud discharged during the drilling is completed and the rotary drilling structure is removed from the hole will return to the hole, which will affect the quality of the hole. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a bored pile hole construction device and method.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a bored pile hole construction device, comprising a vehicle body, a lifting member is installed at the right edge position of the upper end of the vehicle body, and the lifting member is arranged vertically, a driving member is arranged at the right end of the movable part of the lifting member, a first screw rod is installed at the lower end of the driving member, and the first screw rod is arranged vertically, a drill bit is arranged at the lower end of the first screw rod, an outer cylinder is installed at the lower end of the driving member, and the outer cylinder is arranged vertically, a tapered cylinder is arranged at the lower end of the outer cylinder, and the tapered cylinder is arranged to be wide at the top and narrow at the bottom, the tapered cylinder is located above the drill bit, and the tapered cylinder is located outside the first screw rod, an I-shaped inner cylinder is arranged on the inner wall of the outer cylinder, and the I-shaped inner cylinder is located outside the first screw rod;

[0005] A fixing plate is arranged at the right end of the lower part of the lifting member, a positioning cylinder is installed at the right end of the fixing plate, and the positioning cylinder is located at the lower end of the outer cylinder, the lower end of the outer cylinder extends into the positioning cylinder, the drill bit is located in the positioning cylinder, and the drill bit extends out of the lower side of the positioning cylinder, a recovery member is installed at the upper end of the vehicle body, the outlet portion of the recovery member passes through the lifting member and is connected with the positioning cylinder, a recovery pipe is connected at the upper end of the inlet portion of the recovery member, and the recovery pipe is inclined with the left side lower and the right side higher, and the recovery pipe passes through the lifting member and is connected with the driving member.

[0006] Further, the lifting member includes a frame, the frame is mounted on the upper end of the vehicle body, and the frame is arranged vertically, a screw rod is rotatably connected in the frame, and the screw rod is arranged vertically, a first driving device is arranged at the upper end of the frame, and an output shaft of the first driving device is connected to the screw rod, a guide rod is arranged in the frame, and the guide rod is arranged vertically, and the guide rod is located at the rear side of the screw rod;

[0007] A T-shaped block is slidably connected inside the frame, and the lateral part of the T-shaped block extends out of the right side of the frame, the screw rod passes through the T-shaped block, and the screw rod is threadedly connected to the T-shaped block, the guide rod passes through the T-shaped block, and the guide rod is slidably connected to the T-shaped block, a fixed plate is arranged at the right end of the lower part of the frame, the recovery pipe is located between the screw rod and the guide rod, an auxiliary plate is arranged at the lower end of the T-shaped block, and the other end of the auxiliary plate is connected to the upper end of the recovery pipe.

[0008] Further, the driving member includes a U-shaped frame, the two vertical parts of the U-shaped frame are both arranged at the upper end of the transverse part of the T-shaped block, and the U-shaped frame is located on the right side of the frame, the upper end of the first spiral rod passes through the transverse part of the T-shaped block and extends into the U-shaped frame, and the first spiral rod is rotatably connected to the T-shaped block, a second driving device is installed on the upper end of the U-shaped frame, and the output shaft of the second driving device is connected to the first spiral rod, a first sprocket is arranged at the outer end of the first spiral rod, and the first sprocket is located in the U-shaped frame, a second sprocket is arranged on the left side of the first sprocket, the second sprocket is connected to the first sprocket through a chain, and the second sprocket is located in the U-shaped frame;

[0009] A rotating shaft is arranged at the lower end of the second sprocket, and the rotating shaft passes through the T-shaped block and is rotatably connected to the T-shaped block. A rotating gear is installed at the lower end of the rotating shaft, and the rotating gear is located on the lower side of the T-shaped block. The rotating gear is located on the upper side of the recovery pipe and is on the right side of the auxiliary plate. The right end of the rotating gear meshes with the ring gear, and the ring gear is located on the outside of the first spiral rod. The ring gear is rotatably connected to the lower end of the T-shaped block, and the lower end of the ring gear is rotatably connected to the auxiliary cylinder, and the lower end of the auxiliary cylinder is rotatably connected to the outer cylinder, and the left end of the auxiliary cylinder is connected to the recovery pipe, and a plurality of second connecting rods are equidistantly installed between the lower end of the ring gear and the upper end of the I-shaped inner cylinder, and the second connecting rods are located on the outside of the first spiral rod.

[0010] Furthermore, the recovery part includes a box body, which is installed at the upper end of the vehicle body and is located on the left side of the frame. A folding pipe is connected to the upper end of the box body, and the other end of the folding pipe is connected to the recovery pipe. A V-shaped filter is installed in the box body, and the V-shaped filter is arranged to be wide at the top and narrow at the bottom. A second screw rod is rotatably connected to the box body, and the second screw rod is located in the V-shaped filter. A third drive device is installed at the left end of the box body, and the output shaft of the third drive device is connected to the second screw rod.

[0011] Furthermore, a discharge pipe with a control valve is connected to the right end of the box body, and the discharge pipe is arranged obliquely with the left side higher and the right side lower. The discharge pipe is connected to the V-shaped filter screen, and the outer end surface of the outer cylinder is recessed inward to form a plurality of outlets, and the outlets extend to the inner wall of the outer cylinder. The plurality of outlets are located in the positioning cylinder. The outer end surface of the outer cylinder is recessed inward to form a plurality of inlets, and the inlets extend to the inner wall of the outer cylinder. The inlets are located on the upper side of the positioning cylinder.

[0012] The inner wall surface of the positioning cylinder is recessed outward to form an annular groove, and the other end of the discharge pipe passes through the frame and the positioning cylinder and is connected to the annular groove, and the discharge pipe is located between the screw and the guide rod. The discharge pipe is located on the upper side of the fixed plate, and the upper end of the box body is connected to a feeding pipe with a control valve installed, and the other end of the feeding pipe is connected to a storage tank for storing pulverized coal, and the storage tank is located on the left side of the folding tube, and a plurality of lifting rods are equidistantly installed between the storage tank and the box body, and the lifting rods are located outside the feeding pipe.

[0013] Furthermore, an annular plate is provided at the outer end of the outer cylinder, and the outer end of the outer cylinder is slidably connected to an annular sealing plate, and the annular sealing plate is located at the lower side of the annular plate, and the multiple inlets are all located on the inner wall of the annular sealing plate, and multiple first elastic parts are equidistantly installed between the annular plate and the annular sealing plate, and the multiple first elastic parts are all located on the outside of the outer cylinder.

[0014] Furthermore, the upper end of the drill bit is rotatably connected to an auxiliary ring, and the auxiliary ring is located outside the first spiral rod, a plurality of first connecting rods are equidistantly arranged at the upper end of the auxiliary ring, and the first connecting rods are arranged vertically, the other ends of the plurality of first connecting rods are all installed on the lower end of the conical cylinder, and the first connecting rods are located outside the first spiral rod.

[0015] A bored pile construction method comprises the following steps:

[0016] The first step is pre-processing. First, level the construction site on site according to the construction requirements, and lay out the foundation holes on the site. Then drive the vehicle body close to the foundation hole position and place the drill bit directly above the foundation hole.

[0017] The second step is drilling, using the first driving device and the screw rod to move the T-shaped block and other components downward, and allowing the drill bit to enter the base hole, and then using the second driving device to drive the first screw rod and the drill bit to rotate, and the downward-moving and rotating drill bit performs the drilling operation;

[0018] The third step is recovery. The mud produced by drilling enters the I-shaped inner cylinder, and the rotating first spiral rod is used to make the mud move upward along the I-shaped inner cylinder and enter the auxiliary cylinder. The mud in the auxiliary cylinder enters the box along the recovery pipe and the folding pipe, and falls into the V-shaped filter. At the same time, the second spiral rod is driven by the third driving device to rotate in a positive and negative cycle, so as to perform filter pressing on the mud in the V-shaped filter.

[0019] The fourth step is hole enlargement. During the drilling process, the outer cylinder, the I-shaped inner cylinder and the tapered cylinder are rotated with the assistance of the ring gear, the rotating gear, the first sprocket, the second sprocket and the chain, and the tapered cylinder that moves down and rotates will squeeze the inner wall of the drilled hole outward, while the outer cylinder that moves down and rotates will flatten the hole after extrusion, completing the hole enlargement operation of the drilled hole;

[0020] The fifth step is to form a hole. After the drilling is completed, the annular groove is connected to the multiple inlets, and a fixed amount of pulverized coal is transported into the box through the feeding pipe and the storage tank. The filtered mud and pulverized coal are mixed by the third driving device and the second screw rod, so that clay material is produced in the V-shaped filter. The clay material is then passed through the discharge pipe, the annular groove and the multiple inlets into the cavity formed by the outer cylinder and the I-shaped inner cylinder by the third driving device and the second screw rod. At the same time, the first driving device and the second driving device are used to rotate the outer cylinder and move upward, and the clay material is filled into the concave position on the inner wall of the expanded hole through the multiple outlets and smoothed, thereby completing the hole forming operation.

[0021] Beneficial effects of the present invention:

[0022] 1. Through the third motor and the first spiral rod, the mud generated by drilling is input into the box along the conical cylinder, the I-shaped inner cylinder, the auxiliary cylinder, the recovery pipe and the folding pipe and collected, so as to realize the timely recovery and collection of the mud, effectively reduce the probability of the mud returning to the drilled hole, and effectively ensure the quality of the hole.

[0023] 2. Through the first sprocket, chain, second sprocket, rotating shaft, rotating gear, ring gear and multiple second connecting rods, the outer cylinder and the tapered cylinder are rotated relative to the drill bit to achieve linkage between the drilling operation and the reaming operation, and the tapered cylinder that moves down and rotates and the outer cylinder that moves down and rotates are used to extrude and reame the drilled hole wall, so as to achieve compaction and leveling of the drilled hole, effectively reduce the probability of defects such as soil falling off the hole wall, effectively reduce the probability of soil on the hole wall being mixed into subsequent grouting piles, and effectively ensure the quality of the hole.

[0024] 3. The mud collected in the V-shaped filter is filtered by the first motor, the second screw rod and the V-shaped filter to reduce the humidity of the mud. The pulverized coal is transported to the V-shaped filter through the storage tank and the feeding pipe. The mud after filtering in the V-shaped filter is mixed with the pulverized coal and made into clay material, so as to realize the reuse of the recovered mud.

[0025] 4. Through the first motor, the second screw rod, the discharge pipe, the annular groove and multiple inlets, the clay material is transported into the cavity formed by the inner wall of the outer tube and the outer end of the I-shaped inner tube, and the clay material is allowed to enter the recessed position through multiple outlets to fill the recessed position of the inner wall of the hole, effectively eliminating defects such as concave holes and cracks on the inner wall of the hole, effectively reducing the probability of material falling off after the hole wall is exposed due to defects in the inner wall of the hole, effectively reducing the probability of soil on the hole wall being mixed into subsequent grouting piles, and effectively ensuring the quality of the hole.

[0026] 5. Impurities attached to the outer end surface of the outer cylinder are scraped off by multiple trapezoidal scrapers, which effectively reduces the probability of impurities scratching the flattened hole wall and embedding into the hole wall, and effectively reduces the probability of material removal after the hole wall is exposed, effectively ensuring the quality of the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 It is a structural schematic diagram of a bored pile hole construction device of the present invention;

[0029] Figure 2 It is a front view of a bored pile hole construction device of the present invention;

[0030] Figure 3 A cross-sectional view of a bored pile hole construction device of the present invention;

[0031] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0032] Figure 5 for Figure 3 Enlarged view of middle part B;

[0033] Figure 6 It is an assembly diagram of a T-shaped block, a drill bit and a first spiral rod in a bored pile hole construction device of the present invention;

[0034] Figure 7 A three-dimensional diagram of an outer cylinder in a bored pile construction device of the present invention;

[0035] Figure 8 It is a three-dimensional diagram of an I-shaped inner cylinder in a bored pile construction device of the present invention;

[0036] Fig. 9 A three-dimensional diagram of a positioning cylinder in a bored pile construction device of the present invention;

[0037] Fig.10 It is a cross-sectional view of a box in a bored pile hole construction device of the present invention;

[0038] Fig.11 for Fig.10 Sectional view along CC direction;

[0039] Fig.12 It is an assembly diagram of an annular sealing plate, a first elastic member and an annular plate in a bored pile construction device of the present invention;

[0040] Fig.13It is a schematic diagram of another embodiment of a bored pile hole construction device of the present invention;

[0041] Fig.14 for Fig.13 A cross-sectional view of

[0042] Fig.15 A three-dimensional diagram of a functional cylinder in a bored pile construction device of the present invention;

[0043] Fig.16 The present invention is a stereoscopic diagram of a trapezoidal scraper in a bored pile construction device.

[0044] In the figure: 1, vehicle body, 2, box body, 3, frame, 4, positioning cylinder, 5, outer cylinder, 6, T-shaped block, 7, drill bit, 8, first screw rod, 9, I-shaped inner cylinder, 21, storage tank, 22, folding tube, 23, discharge pipe, 24, feeding pipe, 25, first motor, 26, second screw rod, 27, V-shaped filter, 31, screw rod, 32, fixing plate, 33, guide rod, 34, second motor, 41, annular groove, 51, annular blocking plate, 52, first elastic member, 53, annular Plate, 54, auxiliary cylinder, 55, recovery pipe, 56, ring gear, 57, rotating gear, 58, conical cylinder, 61, U-shaped frame, 62, third motor, 63, auxiliary plate, 71, auxiliary ring, 72, first connecting rod, 81, first sprocket, 82, second sprocket, 83, rotating shaft, 91, second connecting rod, 401, functional cylinder, 402, limiting plate, 403, rectangular rod, 404, trapezoidal scraper, 405, second elastic member, 501, outlet, 502, import. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0046] Embodiment 1: Figure 1-Figure 9 As shown, a bored pile hole construction device is provided, including a vehicle body 1, a frame 3 arranged vertically is installed on the right edge position of the upper end of the vehicle body 1, and a mounting carrier is provided for components such as a screw rod 31 through the frame 3, and a screw rod 31 arranged vertically and penetrating a T-shaped block 6 and threadedly connected to the T-shaped block 6 is rotatably connected in the frame 3, and the T-shaped block 6 is moved up and down along the frame 3 through the screw rod 31, and then a fixing part of a first driving device connected with an output shaft and the screw rod 31 is arranged on the upper end of the frame 3, and the screw rod 31 is driven to rotate through the first driving device, and the first driving device can adopt a second motor 34, and a guide rod 33 arranged vertically and located at the rear side of the screw rod 31 and penetrating the T-shaped block 6 and slidably connected to the T-shaped block 6 is arranged in the frame 3, and the movement of the T-shaped block 6 is guided by the guide rod 33;

[0047] The T-shaped block 6 whose lateral part extends out of the right side of the frame 3 is slidably connected in the frame 3, and a mounting carrier is provided for the auxiliary plate 63 and other components through the T-shaped block 6, and the auxiliary plate 63 whose other end is connected to the upper end of the recovery pipe 55 is arranged on the lower end of the T-shaped block 6, and the mounting strength of the recovery pipe 55 is increased through the auxiliary plate 63, and then the fixing plate 32 located at the lower side of the discharge pipe 23 is arranged on the lower right end of the frame 3, and a mounting carrier is provided for the positioning cylinder 4 through the fixing plate 32, and the positioning cylinder 4 is installed on the right end of the fixing plate 32, and the movement of the outer cylinder 5 and other components is guided through the positioning cylinder 4;

[0048] The two vertical parts of the U-shaped frame 61 located on the right side of the frame 3 are both arranged on the upper end of the horizontal part of the T-shaped block 6. The U-shaped frame 61 is used to provide a mounting carrier for the second driving device on the one hand, and to protect the first sprocket 81 and other components on the other hand. The upper end of the first spiral rod 8 arranged vertically and rotatably connected to the T-shaped block 6 passes through the horizontal part of the T-shaped block 6 and extends into the U-shaped frame 61. The mud is driven to move upward along the I-shaped inner cylinder 9 through the first spiral rod 8. The fixed part of the second driving device connected with the output shaft and the first spiral rod 8 is then installed on the upper end of the U-shaped frame 61. The first spiral rod 8 is driven to rotate through the second driving device. The second driving device can use a third motor 62, and the drill bit 7 located in the positioning cylinder 4 and extending from the lower side of the positioning cylinder 4 is arranged on the lower end of the first spiral rod 8. The drilling operation can be performed on the soil layer through the drill bit 7.

[0049] The first sprocket 81 located in the U-shaped frame 61 and arranged at the outer end of the first spiral rod 8 is connected to the second sprocket 82 located on the left side of the first sprocket 81 and located in the U-shaped frame 61 through a chain. The first sprocket 81, the second sprocket 82 and the chain are used in conjunction with each other to rotate the rotating shaft 83, and the rotating shaft 83 that passes through the T-shaped block 6 and is rotatably connected to the T-shaped block 6 is arranged on the lower end of the second sprocket 82. The rotating gear 57 is rotated through the rotating shaft 83, and the rotating gear 57 located at the lower side of the T-shaped block 6, the upper side of the recovery pipe 55 and the right side of the auxiliary plate 63 is installed on the lower end of the rotating shaft 83. The ring gear 56 is driven to rotate through the rotating gear 57, and the ring gear 56 located on the outer side of the first spiral rod 8 and rotatably connected to the lower end of the T-shaped block 6 through the annular slide rail is meshed with the right end of the rotating gear 57. The plurality of second connecting rods 91 are rotated through the annular gear 56.

[0050] The auxiliary cylinder 54 is rotatably connected to the lower end of the ring gear 56, and a mounting carrier is provided for the recovery tube 55 through the auxiliary cylinder 54, and the outer cylinder 5 located at the upper end of the positioning cylinder 4 and extending into the positioning cylinder 4 and arranged vertically is rotatably connected to the lower end of the auxiliary cylinder 54, and is used for hole expansion through the outer cylinder 5, and then the recovery tube 55 which is arranged obliquely with the left lower and the right higher and passes through the frame 3 and is located between the screw 31 and the guide rod 33 is connected and arranged on the left end of the auxiliary cylinder 54, and the upward-moved mud is discharged through the recovery tube 55, and a plurality of second connecting rods 91 located on the outside of the first screw rod 8 are equidistantly installed between the lower end of the ring gear 56 and the upper end of the I-shaped inner cylinder 9, and a plurality of second connecting rods 91 are used in cooperation to connect the I-shaped inner cylinder 9 with the ring gear 56, and then the box body 2 located on the left side of the frame 3 is installed on the upper end of the vehicle body 1, and is used to collect the recovered mud through the box body 2, and the folding tube 22 whose other end is connected to the recovery tube 55 is connected and arranged on the upper end of the box body 2;

[0051] A conical cylinder 58 which is arranged to be wide at the top and narrow at the bottom and is located on the upper side of the drill bit 7 and on the outside of the first screw rod 8 is connected and arranged on the lower end of the outer cylinder 5. The drilled hole wall is squeezed through the conical cylinder 58, and the I-shaped inner cylinder 9 located on the outside of the first screw rod 8 is arranged on the inner wall of the outer cylinder 5. The I-shaped inner cylinder 9 provides a channel for the mud material to move up. Then, an auxiliary ring 71 located on the outside of the first screw rod 8 and on the lower side of the conical cylinder 58 is rotatably connected to the upper end of the drill bit 7 through an annular slide rail. The first connecting rod 72 is movably connected to the drill bit 7 through the auxiliary ring 71. A plurality of first connecting rods 72 which are arranged vertically and whose other ends are installed on the lower end of the conical cylinder 58 and are located on the outside of the first screw rod 8 are equidistantly arranged on the upper end of the auxiliary ring 71. The plurality of first connecting rods 72 are used in combination to connect the auxiliary ring 71 to the conical cylinder 58.

[0052] When in use, the vehicle body 1 is first moved, and then the drill bit 7 is moved to a predetermined position, and then the third motor 62 is started, thereby driving the first screw rod 8 to rotate forward, and then the drill bit 7 is rotated forward, and then the second motor 34 is started, thereby driving the screw rod 31 to rotate. Since the screw rod 31 is threadedly connected with the T-shaped block 6, the rotation of the screw rod 31 simultaneously moves the T-shaped block 6 downward, and then the components installed on the T-shaped block 6 move downward. At this time, the drill bit 7 that moves downward and rotates performs a drilling movement in the soil layer, thereby completing the drilling operation;

[0053] The mud generated during the drilling process will move and gather at the upper end of the borehole. At this time, the rotating first spiral rod 8 moves the mud upward along the channel formed by the conical cylinder 58, the I-shaped inner cylinder 9 and the auxiliary cylinder 54, and the mud moved up into the auxiliary cylinder 54 is transported outward along the pipeline formed by the recovery pipe 55 and the folded pipe 22, and then the mud transported outward enters the box 2 and is collected, so that the mud can be recovered and collected in time, effectively reducing the probability of the mud returning to the drilled hole, and effectively ensuring the quality of the hole.

[0054] During the rotation of the first screw rod 8, the first sprocket 81 is rotated, and under the transmission of the chain, the second sprocket 82 is rotated synchronously, and then the rotating shaft 83 and the rotating gear 57 are rotated, so that the ring gear 56 is rotated, and under the transmission of multiple second connecting rods 91, the outer cylinder 5, the I-shaped inner cylinder 9 and the tapered cylinder 58 are rotated, so that the drilling operation and the reaming operation are linked, and the outer cylinder 5 and the tapered cylinder 58 are relatively rotated with the drill bit 7, and the outer cylinder 5 and the tapered cylinder 58 are also moved downward with the downward movement of the T-shaped block 6. At this time, the tapered cylinder 58 that moves downward and rotates will squeeze the drilled hole wall;

[0055] The drilled hole is compacted to effectively reduce the probability of defects such as soil falling off the hole wall, effectively ensure the quality of the hole, and the outer cylinder 5 that moves down and rotates expands the compacted hole wall to level the compacted hole, further reducing the probability of defects such as soil falling off the hole wall, effectively reducing the probability of soil on the hole wall mixing into subsequent grouting piles, and effectively ensuring the quality of the hole.

[0056] Embodiment 2: In the hole-forming construction, the drill bit 7 is used for drilling operations, and the I-shaped inner cylinder 9 and the first spiral rod 8 are used to timely recover the mud generated by the drilling, and the outer cylinder 5 and the conical cylinder 58 are used to compact and level the drilled hole wall. Although the probability of defects such as soil falling off the hole wall is reduced, it is easy for irregular and hard stones and other materials to be embedded in the hole wall, resulting in a high probability of concave holes, cracks and other depressions on the edges of the stones and other materials during the compaction and leveling process. As a result, when the drill bit 7 and other components are removed from the hole or grouting, the exposed stones and other materials are prone to fall off due to vibration, and the soil at the edge of the material is prone to pulling force and falling off, effectively reducing the probability of material falling off after the hole wall is exposed due to defects in the inner wall of the hole.

[0057] In order to solve the above problems, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, a V-shaped filter screen 27 with a wide top and narrow bottom is installed in the box body 2, and the recovered mud is filtered through the V-shaped filter screen 27, and the second screw rod 26 located in the V-shaped filter screen 27 is rotatably connected in the box body 2, and the mud in the V-shaped filter screen 27 is stirred by the second screw rod 26 to assist filtering, mixing and discharging operations, and then the fixed part of the third driving device connected with the output shaft and the second screw rod 26 is installed on the left end of the box body 2, and the second screw rod 26 is driven to rotate by the third driving device, and the third driving device can use the first motor 25;

[0058] A discharge pipe 23 with a control valve, arranged with the left side higher than the right side and connected to the V-shaped filter 27, and the other end of which passes through the frame 3 and the positioning cylinder 4 and is connected to the annular groove 41 and is located between the screw 31 and the guide rod 33, is connected and arranged on the right end of the box body 2. The V-shaped filter 27 is connected to the annular groove 41 through the discharge pipe 23. The outer end surface of the outer cylinder 5 is recessed inward to form a plurality of outlets 501 extending to the inner wall of the outer cylinder 5 and located in the positioning cylinder 4. Clay material is transported outward through the plurality of outlets 501. The outer end surface of the outer cylinder 5 is recessed inward to form a plurality of inlets 502 extending to the inner wall of the outer cylinder 5 and located on the upper side of the positioning cylinder 4 and located on the inner wall of the annular blocking plate 51. The plurality of inlets 502 are used to transport clay material into the cavity formed by the outer cylinder 5 and the I-shaped inner cylinder 9.

[0059] The inner wall surface of the positioning cylinder 4 is recessed outward to form an annular groove 41, and the discharge pipe 23 is connected to the multiple inlets 502 through the annular groove 41, and the feeding pipe 24 with a control valve is connected and installed on the upper end of the box body 2, and the storage tank 21 is connected and arranged with the box body 2 through the feeding pipe 24, and the storage tank 21 located on the left side of the folding pipe 22 is connected and set on the other end of the feeding pipe 24, and the storage tank 21 is used for temporary storage of pulverized coal, and then a plurality of lifting rods located outside the feeding pipe 24 are equidistantly installed between the storage tank 21 and the box body 2, and the plurality of lifting rods are used in combination to lift the storage tank 21;

[0060] An annular plate 53 is arranged on the outer end of the outer cylinder 5, and a mounting carrier is provided for the first elastic member 52 through the annular plate 53. The annular sealing plate 51 located on the lower side of the annular plate 53 is slidably connected to the outer end of the outer cylinder 5, and multiple inlets 502 are blocked through the annular sealing plate 51. Then, multiple first elastic members 52 located on the outside of the outer cylinder 5 are equidistantly installed between the annular plate 53 and the annular sealing plate 51. Multiple first elastic members 52 are used in combination to return the annular sealing plate 51 to its original position. The first elastic member 52 can be a spring.

[0061] When in use, the second motor 34 and the third motor 62 are started first, the third motor 62 drives the first screw rod 8 and the drill bit 7 to rotate, and the second motor 34 drives the screw rod 31 to rotate, so that the drill bit 7 and other components installed on the T-shaped block 6 move downward, and then the drill bit 7 that moves downward and rotates is used to drill in the soil layer, so as to complete the drilling operation, and the mud generated by drilling is moved upward along the channel formed by the conical cylinder 58, the I-shaped inner cylinder 9 and the auxiliary cylinder 54 through the rotating first screw rod 8, and the mud is transported into the box body 2 through the recovery pipe 55 and the folding pipe 22 and falls into the V-shaped filter screen 27;

[0062] At the same time, the first motor 25 is started to drive the second screw rod 26 to rotate in a forward and reverse cycle on the V-shaped filter screen 27, and the mud collected in the V-shaped filter screen 27 is subjected to filter pressing treatment under the obstruction of the inner wall of the box body 2, so as to discharge part of the water mixed in the mud, thereby reducing the humidity of the mud;

[0063] When the drill bit 7 moves downward and approaches the predetermined depth, the annular plugging plate 51 first contacts the positioning cylinder 4 and moves the annular plugging plate 51 upward, thereby compressing the plurality of first elastic members 52, so that the plurality of first elastic members 52 all generate elastic force, and the plurality of inlets 502 blocked by the annular plugging plate 51 move into the positioning cylinder 4 and are all connected with the annular groove 41. When the drilling is completed, the control valve on the feeding pipe 24 is opened, so that the pulverized coal stored in the storage tank 21 enters the box body 2 through the feeding pipe 24 and falls into the V-shaped filter 27, and the first motor 25 and the second screw rod 26 are used to mix the mud filtered in the V-shaped filter 27 with the pulverized coal and make clay material, so as to realize the reuse of the recovered mud.

[0064] Then, the control valve on the discharge pipe 23 is opened, and the second screw rod 26 is rotated in one direction, so that the clay material formed in the V-shaped filter screen 27 is transported to the discharge pipe 23, and the clay material enters the cavity formed by the inner wall of the outer cylinder 5 and the outer end of the I-shaped inner cylinder 9 along the discharge pipe 23, the annular groove 41 and the multiple inlets 502, and the clay material moves down along the cavity and gathers at the bottom of the cavity, and then the transportation of the clay material into the cavity is stopped;

[0065] Then, the second motor 34 and the screw 31 are used to make the T-block 6, the outer cylinder 5, the I-shaped inner cylinder 9, the first screw rod 8, the drill bit 7 and other components move upward along the hole, and the third motor 62 is used to rotate the outer cylinder 5 and the I-shaped inner cylinder 9 and other components, so that under the action of centrifugal force, the clay material in the cavity enters the multiple outlets 501. When the outlets 501 are aligned with the recessed positions on the inner wall of the hole, the clay material in the outlets 501 will enter the recessed positions under the action of centrifugal force, and the outer end surface of the outer cylinder 5 located at the lower side of the outlets 501 will level the clay material entering the recessed positions, so as to fill the recessed positions on the inner wall of the hole, effectively eliminate defects such as concave holes and cracks on the inner wall of the hole, effectively reduce the probability of material stripping after the hole wall is exposed due to defects on the inner wall of the hole, effectively reduce the probability of soil materials on the hole wall being mixed into subsequent grouting piles, and effectively ensure the quality of the hole.

[0066] Embodiment 3: In the hole-forming construction, the drill bit 7 is used for drilling operations, and the I-shaped inner cylinder 9 and the first spiral rod 8 are used to timely recover the mud generated by the drilling, and the outer cylinder 5 and the conical cylinder 58 are used to compact and level the drilled hole wall. Although the probability of defects such as soil falling off on the hole wall is reduced, impurities such as sand are easily attached to the outer end surface of the outer cylinder 5. During the process of the outer cylinder 5 rotating downward and leveling the hole wall, the attached sand and other impurities are easy to scratch grooves on the leveled hole wall or directly embed on the hole wall, resulting in the soil or embedded impurities in the grooves falling off due to vibration when the drill bit 7 and other components are removed from the hole or grouting, effectively reducing the probability of material falling off after the hole wall is exposed due to defects in the inner wall of the hole.

[0067] In order to solve the above problems, Figure 13-Figure 16 As shown, the function cylinder 401 located outside the vehicle body 1 is connected and installed at the lower end of the positioning cylinder 4, and a mounting carrier is provided for the rectangular rod 403 and other components through the function cylinder 401, and the outer ends of a plurality of trapezoidal scrapers 404 located inside the function cylinder 401 and arranged to be narrow inside and wide outside are respectively connected to the inner ends of a plurality of rectangular rods 403 extending outside the function cylinder 401 and slidably connected to the function cylinder 401, and the trapezoidal scrapers 404 are movably connected to the function cylinder 401 through the rectangular rods 403, and then the separation cylinder 401 is connected to the inner ends of the plurality of rectangular rods 403 extending outside the function cylinder 401 and slidably connected to the function cylinder 401. A plurality of second elastic members 405, which are respectively located on the outside of the plurality of rectangular rods 403 and are respectively arranged on the outward ends of the plurality of trapezoidal scrapers 404, are equidistantly installed on the inner wall of the functional tube 401. The trapezoidal scrapers 404 are returned to their original positions by the second elastic members 405. The second elastic members 405 can be springs. A plurality of limiting plates 402 located on the outside of the functional tube 401 are respectively installed on the outward ends of the plurality of rectangular rods 403. The limiting plates 402 are used to limit the installation between the rectangular rods 403 and the functional tube 401.

[0068] When using the drill bit 7 and other components to perform hole forming construction, the outer cylinder 5 will move downward along the positioning cylinder 4 and the functional cylinder 401, and the inclined surface of the conical cylinder 58 will first contact the upper inclined surfaces of the multiple trapezoidal scrapers 404, and under the action of the downwardly moving conical cylinder 58, the multiple trapezoidal scrapers 404 will move outward, and compress the multiple second elastic members 405, so that the multiple second elastic members 405 generate elastic force, and the multiple trapezoidal scrapers 404 will enter the outer end surface of the outer cylinder 5. During the downward movement and rotation of the outer cylinder 5, the multiple trapezoidal scrapers 404 will scrape off the impurities attached to the outer end surface of the outer cylinder 5, effectively reducing the probability of scratches on the flattened hole wall due to impurities, embedding into the hole wall, etc., and effectively reducing the probability of material stripping after the hole wall is exposed, and effectively ensuring the quality of hole forming;

[0069] During the process of removing the drill bit 7 and other components from the formed hole, the drill bit 7 is in a state of moving up and rotating, and the drill bit 7 first enters the functional cylinder 401. At this time, under the action of the elastic force of the second elastic member 405, the multiple trapezoidal scrapers 404 move inward and contact the outer surface of the drill bit 7. At this time, the multiple trapezoidal scrapers 404 will clean the soil and impurities attached to the outer surface of the drill bit 7, effectively reducing the difficulty of subsequent cleaning of the drill bit 7.

[0070] A bored pile construction method comprises the following steps:

[0071] The first step is pre-processing. First, the construction site is leveled on site according to the construction requirements, and the foundation holes are arranged on the site. Then the vehicle body 1 is driven and approaches the location of the foundation holes, and the drill bit 7 is located directly above the foundation holes.

[0072] The second step is drilling. The second motor 34 and the screw rod 31 are used to move the T-shaped block 6 and other components downward, and the drill bit 7 is driven into the base hole. The third motor 62 is then used to drive the first screw rod 8 and the drill bit 7 to rotate, and the drill bit 7 that moves downward and rotates performs the drilling operation.

[0073] The third step is recovery. The mud produced by drilling enters the I-shaped inner cylinder 9, and the rotating first screw rod 8 is used to make the mud move upward along the I-shaped inner cylinder 9 and enter the auxiliary cylinder 54. The mud in the auxiliary cylinder 54 enters the box 2 along the recovery pipe 55 and the folding pipe 22, and falls into the V-shaped filter 27. At the same time, the second screw rod 26 is driven by the first motor 25 to rotate in a forward and reverse cycle, so as to perform filter pressing treatment on the mud in the V-shaped filter 27.

[0074] Step 4: Hole expansion. During the drilling process, with the assistance of the ring gear 56, the rotating gear 57, the first sprocket 81, the second sprocket 82 and the chain, the outer cylinder 5, the I-shaped inner cylinder 9 and the tapered cylinder 58 are rotated, and the tapered cylinder 58 that moves downward and rotates will squeeze the inner wall of the drilled hole outward, and the outer cylinder 5 that moves downward and rotates will flatten the squeezed hole, completing the hole expansion operation of the drilled hole;

[0075] The fifth step is to form a hole. After the drilling is completed, the annular groove 41 is connected to the multiple inlets 502, and a fixed amount of pulverized coal is transported into the box body 2 through the feeding pipe 24 and the storage tank 21. The first motor 25 and the second screw rod 26 are used to mix the filtered mud and pulverized coal, so as to produce clay in the V-shaped filter 27. The first motor 25 and the second screw rod 26 are used to make the clay pass through the discharge pipe 23, the annular groove 41 and the multiple inlets 502 into the cavity formed by the outer tube 5 and the I-shaped inner tube 9. At the same time, the second motor 34 and the third motor 62 are used to rotate the outer tube 5 and other components and move upward, and the clay is filled into the concave position on the inner wall of the expanded hole through the multiple outlets 501 and smoothed, thereby completing the hole forming operation.

[0076] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bored pile construction device, characterized by: The vehicle body comprises a lifting member installed at the right edge of the upper end of the vehicle body, and the lifting member is arranged vertically; a driving member is provided at the right end of the movable part of the lifting member; a first screw rod is installed at the lower end of the driving member, and the first screw rod is arranged vertically; a drill bit is provided at the lower end of the first screw rod; an outer cylinder is installed at the lower end of the driving member, and the outer cylinder is arranged vertically; a tapered cylinder is provided at the lower end of the outer cylinder, and the tapered cylinder is arranged wide at the top and narrow at the bottom; the tapered cylinder is located above the drill bit and outside the first screw rod; an I-shaped inner cylinder is provided on the inner wall of the outer cylinder, and the I-shaped inner cylinder is located outside the first screw rod; A fixing plate is provided at the right end of the lower part of the lifting member, a positioning cylinder is installed at the right end of the fixing plate, and the positioning cylinder is located at the lower end of the outer cylinder, the lower end of the outer cylinder extends into the positioning cylinder, the drill bit is located in the positioning cylinder, and the drill bit extends out of the lower side of the positioning cylinder, a recovery member is installed at the upper end of the vehicle body, the outlet of the recovery member passes through the lifting member and is connected to the positioning cylinder, the upper end of the inlet of the recovery member is connected to a recovery pipe, and the recovery pipe is arranged with a left lower and a right higher tilt, the recovery pipe passes through the lifting member and is connected to the driving member; The lifting member includes a frame, which is mounted on the upper end of the vehicle body and arranged vertically. A T-shaped block is slidably connected in the frame, and the transverse portion of the T-shaped block extends out of the right side of the frame. An auxiliary plate is provided at the lower end of the T-shaped block. The driving member includes a U-shaped frame, a second driving device is installed on the upper end of the U-shaped frame, and the output shaft of the second driving device is connected to the first screw rod, a first sprocket is provided at the outer end of the first screw rod, and the first sprocket is located in the U-shaped frame, a second sprocket is provided on the left side of the first sprocket, the second sprocket is connected to the first sprocket by a chain, and the second sprocket is located in the U-shaped frame; A rotating shaft is provided at the lower end of the second sprocket, which passes through the T-shaped block and is rotatably connected to the T-shaped block. A rotating gear is installed at the lower end of the rotating shaft, and the rotating gear is located on the lower side of the T-shaped block. The rotating gear is located on the upper side of the recovery pipe, and the rotating gear is on the right side of the auxiliary plate. The right end of the rotating gear is engaged with the ring gear, and the ring gear is located on the outside of the first spiral rod. The ring gear is rotatably connected to the lower end of the T-shaped block, and the lower end of the ring gear is rotatably connected to the auxiliary cylinder, and the lower end of the auxiliary cylinder is rotatably connected to the outer cylinder. The left end of the auxiliary cylinder is connected to the recovery pipe, and a plurality of second connecting rods are equidistantly installed between the lower end of the ring gear and the upper end of the I-shaped inner cylinder, and the second connecting rods are located outside the first spiral rod; The outer end surface of the outer tube is concave inward to form a plurality of outlets, and the outlets extend to the inner wall of the outer tube, and the plurality of outlets are all located in the positioning tube. The outer end surface of the outer tube is concave inward to form a plurality of inlets, and the inlets extend to the inner wall of the outer tube, and the inlets are located on the upper side of the positioning tube; An annular plate is provided at the outer end of the outer cylinder, and the outer end of the outer cylinder is slidably connected to the annular sealing plate, and the annular sealing plate is located on the lower side of the annular plate. Multiple inlets are located on the inner wall of the annular sealing plate, and multiple first elastic members are installed equidistantly between the annular plate and the annular sealing plate, and the multiple first elastic members are all located on the outside of the outer cylinder.

2. The bored pile drilling construction device according to claim 1, characterized in that: A screw rod is rotatably connected in the frame and arranged vertically. A first driving device is provided at the upper end of the frame, and an output shaft of the first driving device is connected to the screw rod. A guide rod is provided in the frame and arranged vertically, and is located behind the screw rod. The screw rod passes through the T-shaped block, and the screw rod is threadedly connected to the T-shaped block, the guide rod passes through the T-shaped block, and the guide rod is slidingly connected to the T-shaped block, a fixed plate is set at the lower right end of the frame, the recovery pipe is located between the screw rod and the guide rod, the other end of the auxiliary plate is connected to the upper end of the recovery pipe, the two vertical parts of the U-shaped frame are both set at the upper end of the transverse part of the T-shaped block, and the U-shaped frame is located on the right side of the frame, the upper end of the first screw rod passes through the transverse part of the T-shaped block and extends into the U-shaped frame, and the first screw rod is rotatably connected to the T-shaped block.

3. The bored pile hole construction device according to claim 2, characterized in that: The recovery part includes a box body, which is installed at the upper end of the vehicle body and is located on the left side of the frame. A folding pipe is connected to the upper end of the box body, and the other end of the folding pipe is connected to the recovery pipe. A V-shaped filter is installed in the box body, and the V-shaped filter is wide at the top and narrow at the bottom. A second screw rod is rotatably connected in the box body, and the second screw rod is located in the V-shaped filter rod. A third drive device is installed at the left end of the box body, and the output shaft of the third drive device is connected to the second screw rod.

4. The bored pile drilling construction device according to claim 3, characterized in that: The right end of the box is connected to a discharge pipe with a control valve, and the discharge pipe is arranged with the left side higher and the right side lower. The discharge pipe is connected to the V-shaped filter screen. The inner wall of the positioning cylinder is recessed outward to form an annular groove. The other end of the discharge pipe passes through the frame and the positioning cylinder and is connected to the annular groove. The discharge pipe is located between the screw and the guide rod. The discharge pipe is on the upper side of the fixed plate. The upper end of the box body is connected to a feeding pipe with a control valve. The other end of the feeding pipe is connected to a storage tank for storing pulverized coal, and the storage tank is located on the left side of the folding tube. Multiple lifting rods are installed at equal distances between the storage tank and the box body, and the lifting rods are located outside the feeding pipe.

5. The bored pile hole construction device according to claim 4, characterized in that: The upper end of the drill bit is rotatably connected to the auxiliary ring, and the auxiliary ring is located outside the first spiral rod. A plurality of first connecting rods are equidistantly arranged on the upper end of the auxiliary ring, and the first connecting rods are arranged vertically. The other ends of the plurality of first connecting rods are all installed on the lower end of the conical cylinder, and the first connecting rods are located outside the first spiral rod.

6. A bored pile drilling construction method, comprising the bored pile drilling construction device according to claim 5, characterized in that: The following steps are involved: The first step is pre-processing. First, the construction site is leveled according to the construction requirements and the foundation holes are laid out on the site. Then the vehicle body is driven close to the foundation holes and the drill bit is positioned directly above the foundation holes. The second step is drilling, using the first driving device and the screw to move the T-shaped block downward and allow the drill bit to enter the foundation hole, and then using the second driving device to drive the first screw rod and the drill bit to rotate, and the drill bit that moves downward and rotates performs the drilling operation; The third step is recovery. The mud produced by drilling enters the I-shaped inner cylinder, and the rotating first screw rod is used to make the mud move upward along the I-shaped inner cylinder and enter the auxiliary cylinder. The mud in the auxiliary cylinder enters the box along the recovery pipe and the folded pipe and falls into the V-shaped filter. At the same time, the second screw rod is driven by the third driving device to rotate forward and reverse, so that the mud in the V-shaped filter is subjected to filter pressure treatment. The fourth step is hole expansion. During the drilling process, the outer cylinder, the I-shaped inner cylinder and the tapered cylinder are rotated with the assistance of the ring gear, the rotating gear, the first sprocket, the second sprocket and the chain. The tapered cylinder that moves downward and rotates will squeeze the inner wall of the drilled hole outward. At the same time, the outer cylinder that moves downward and rotates will flatten the hole after squeezing, completing the hole expansion operation. The fifth step is hole forming. When the drilling is completed, the annular groove is connected to the multiple inlets, and a fixed amount of pulverized coal is transported into the box through the feeding pipe and the storage tank. The filtered mud and pulverized coal are mixed by the third driving device and the second screw rod, thereby producing clay material in the V-shaped filter screen. The clay material is then passed through the discharge pipe, the annular groove and the multiple inlets into the cavity formed by the outer cylinder and the I-shaped inner cylinder by the third driving device and the second screw rod. At the same time, the first driving device and the second driving device are used to rotate the outer cylinder and move it upward, and the clay material is filled into the concave position on the inner wall of the expanded hole through the multiple outlets and smoothed, thereby completing the hole forming operation.

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