A piling device for building foundation

Abstract

The present invention belongs to the technical field of pile driving devices, specifically a building foundation pile driving device, including a pile rod and a pile hammer, the pile rod is fixedly connected to the top of the pile hammer, a crushing mechanism is arranged inside the pile hammer, and a driving assembly for driving the pile hammer and the crushing mechanism to rotate in the same direction but at different speeds is arranged outside the pile hammer and the crushing mechanism. The present invention can control the state of the fan-shaped blades, and by controlling the fan-shaped blades to be in a convergent state, the upper and lower layers of spiral fan-shaped blades can be used as spiral blades, which can not only improve the crushing effect of the soil inside the pile hammer, but also enable the soil inside the pile hammer to be lifted upward and transported to the pile rod; by controlling the fan-shaped blades to be in an unfolded state, the fan-shaped blades and the pile hammer in the unfolded state form a relatively sealed space, which can prevent the soil from scattering, thereby facilitating the transportation of the soil generated by the pile driving during the foundation piling process, and the operation is simple, the piling efficiency is improved, and the practicality of the present invention is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of piling devices, in particular to a piling device for building foundations. Background Art

[0002] The pile driver is mainly composed of a frame, hydraulic system, oil cylinder, pile driver and extension arm, etc. It ensures a firm bond between the building's foundation concrete mixture and the soil layer by drilling and tamping, which can effectively enhance the bearing capacity and stability of the foundation and avoid settlement problems caused by internal cavities in the foundation or loose soil layers. It is widely used in high-rise buildings, bridges and other large projects.

[0003] After searching, the Chinese patent with the publication number CN218027672U discloses an inserted long screw pile driver for pile driving to prevent soil falling, including a column, a rotating rod is rotatably provided on the side wall of the column, a spiral blade is fixed on the rotating rod, and a soil-proof mechanism is provided on the side of the column close to the spiral blade; the soil-proof mechanism includes a semicircular first sleeve, two of which are symmetrically distributed in rotation, a first protective sleeve is fixedly provided on the upper end of the first sleeve, a semicircular support plate is rotatably provided on the lower surface of the first sleeve, a second sleeve is fixedly provided on the upper surface of the support plate near the center, and a storage trough is formed between the first sleeve and the second sleeve. The fallen soil is collected by the first protective sleeve and falls into the storage trough formed between the first sleeve and the second sleeve, so as to prevent the fallen soil from falling and causing danger to the staff when the soil moves with the height.

[0004] Although the above-mentioned inserted long screw pile driver for preventing soil from falling can prevent soil from falling, it is troublesome to operate. Every time the soil needs to be unloaded, the staff needs to operate the pressing block to unload, which affects the efficiency of piling. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a building foundation piling device which is simple to operate and not only prevents soil from scattering but also facilitates the discharge of soil, thereby improving the piling efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A building foundation piling device comprises a pile rod and a pile hammer, wherein the pile rod is fixedly connected to the top of the pile hammer, a crushing mechanism is arranged inside the pile hammer, and a driving assembly is arranged outside the pile hammer and the crushing mechanism;

[0008] The crushing mechanism comprises an upper fixed block and a lower fixed block, wherein the upper fixed block moves above the lower fixed block, and the outer portions of the upper fixed block and the lower fixed block are both provided with fan-shaped blades that can be folded and unfolded.

[0009] Preferably, a support seat is provided at the top of the pile rod, a pile tooth is fixedly connected to the bottom of the pile hammer, a support rod is fixedly connected to the top of the support seat, a drive ring is fixedly connected to the bottom of the support seat, the drive ring is rotatably connected to the top of the pile rod, and the drive assembly is installed inside the drive ring.

[0010] Preferably, the driving assembly includes a sun gear fixedly connected to the bottom end of the output shaft, the sun gear is externally meshed with a planetary gear, the planetary gear is externally meshed with a gear ring, the gear ring is fixedly connected to the inside of a driving sleeve ring, at least two groups of planetary gears are provided, the bottom ends of the shafts of the two groups of planetary gears are rotatably connected to drive rings, the drive rings are fixedly connected to a pile rod, the bottom of the sun gear is fixedly connected to a sleeve shaft, and the inside of the pile rod is fixedly connected to a plurality of fixed brackets.

[0011] Preferably, the sleeve shaft includes an outer shaft rod and an inner shaft rod, the outer shaft rod is sleeved on the outside of the inner shaft rod, a positioning ring is fixedly connected to the bottom end of the outer shaft rod, the upper fixed block and the lower fixed block are both provided with a through shaft sleeve hole, the outer shaft rod is inserted into the shaft sleeve holes of the upper fixed block and the lower fixed block, and the bottom of the outer shaft rod is fixedly connected to a limiting block.

[0012] Preferably, the upper fixed block and the lower fixed block have the same main structure, and the upper fixed block and the lower fixed block are both provided with a plurality of blade grooves, and the upper stop block and the lower stop block are fixedly connected inside the blade groove, the height of the upper fixed block is greater than the height of the lower fixed block, and the upper fixed block is provided with a penetrating connecting hole, the tail of the fan-shaped blade is fixedly connected with a blade tail root, and the blade tail root is rotatably connected to the inside of the blade groove, and the tail of the blade tail root is hinged with a connecting rod, the fan-shaped blade movably connected to the lower fixed block is the fan-shaped blade at the bottom, and the fan-shaped blade movably connected to the upper fixed block is the fan-shaped blade at the top, the connecting rod at the bottom passes through the connecting hole and extends to the top of the upper fixed block, the connecting rod at the bottom is set as a telescopic rod, the connecting rods of the bottom fan-shaped blade and the top fan-shaped blade are both hinged inside the positioning collar, and the upper fixed block and the lower fixed block are both slidably connected to the inner shaft rod.

[0013] Preferably, the number of the fan-shaped blades at the bottom is equal to that of the fan-shaped blades at the top, and they are staggered alternately up and down. The fan-shaped blades at the top and the fan-shaped blades at the bottom are both in an unfolded state, and the fan-shaped blades at the top and the fan-shaped blades at the bottom form a circular fan blade state that overlaps up and down, and the outer edges of the fan-shaped blades fit against the inner wall of the pile hammer.

[0014] Preferably, the fan-shaped blade is arranged in a sickle shape, the tip of the fan-shaped blade in the contracted state faces upward, and the tip of the fan-shaped blade is in the same direction as the rotation direction.

[0015] Preferably, an upper driving block is fixedly connected to the inside of the sleeve hole of the upper fixed block, and a lower driving block is fixedly connected to the inside of the sleeve hole of the lower fixed block. An upper driving groove and a lower driving groove are provided on the outside of the inner shaft rod. The upper driving block is slidably connected to the inside of the upper driving groove, and the lower driving block is slidably connected to the inside of the lower driving groove. The length of the upper driving groove is greater than that of the lower driving groove.

[0016] Preferably, a hydraulic driver is provided on the outside of the inner shaft, the hydraulic driver is installed inside the support seat, the hydraulic driver is rotatably connected to the outside of the output shaft, and the sleeve shaft is configured as a hydraulically driven combined shaft.

[0017] Preferably, a pump oil pipe is provided outside the hydraulic driver, and the pump oil pipe is connected to an external hydraulic oil pump.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can control the state of the fan-shaped blades. By controlling the fan-shaped blades to be in a converged state, the upper and lower layers of spiral fan-shaped blades can be used as spiral blades, which can not only improve the crushing effect of the soil inside the pile hammer, but also enable the soil inside the pile hammer to be lifted upward, so that the crushed soil moves toward the inside of the pile rod and transports the soil into the pile rod; by controlling the fan-shaped blades to be in an expanded state, the fan-shaped blades in the expanded state and the pile hammer form a relatively sealed space, which can prevent the soil from scattering, thereby facilitating the transportation of the soil generated by the pile driving during the foundation piling process, and the process is automatically completed by the present invention, without the need for staff to participate or assist in unloading the soil; the practicality of the present invention is improved by controlling the state of the fan-shaped blades.

[0020] 2. The present invention sets a driving component so that the pile hammer and the fan-shaped blades rotate synchronously in the same direction under the rotation of the output shaft, and the pile hammer rotates slowly on the outside and the fan-shaped blades rotate quickly on the inside of the pile hammer, thereby preventing the soil driven by the pile hammer from accumulating inside the pile hammer. The fan-shaped blades can quickly drive the soil inside the pile hammer into the pile rod for storage, thereby ensuring the stability of the entire piling process.

[0021] 3. The present invention has a simple structure, is easy to disassemble and maintain, and the drive assembly is installed on the top of the pile rod, which further ensures the stability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the piling part of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection structure between the pile hammer and the internal fan-shaped blades of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper fixing block, the lower fixing block and the fan-shaped blade of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure of the upper fixing block, the lower fixing block and the inner shaft rod of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the fan-shaped blade of the present invention;

[0027] Figure 6 It is a schematic diagram of the cross-sectional connection structure of the sleeve shaft and the fan-shaped blade of the present invention from the first perspective;

[0028] Figure 7 A schematic diagram of the cross-sectional connection structure of the sleeve shaft and the fan-shaped blade of the present invention from a second viewing angle;

[0029] Figure 8 It is a three-dimensional structural schematic diagram of the driving assembly of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fan-shaped blade of the present invention in a converged state;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the fan-shaped blade of the present invention in an unfolded state.

[0032] In the figure: 1, pile rod; 2, pile hammer; 21, pile teeth; 3, support seat; 4, driving collar; 5, support rod; 6, output shaft; 7, driving assembly; 71, sun gear; 72, planetary gear; 73, gear ring; 74, sleeve shaft; 741, outer shaft rod; 742, inner shaft rod; 743, positioning collar; 744, limit block; 7421, upper drive slide; 7422, lower drive slide; 75, driving ring; 76, fixed bracket; 8, crushing mechanism; 81, upper fixed block; 82, lower fixed block; 83, shaft sleeve hole; 84, blade groove; 85, upper stop block; 86, lower stop block; 87, connecting hole; 88, upper drive block; 89, lower drive block; 810, fan-shaped blade; 811, blade tail root; 812, connecting rod; 9, hydraulic driver. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] See also Figure 1 - Figure 3 A building foundation piling device comprises a pile rod 1 and a pile hammer 2, wherein the pile rod 1 is fixedly connected to the top of the pile hammer 2, a crushing mechanism 8 is arranged inside the pile hammer 2, and a driving assembly 7 for driving the pile hammer 2 and the crushing mechanism 8 to rotate in the same direction but at different speeds is arranged outside the pile hammer 2 and the crushing mechanism 8;

[0036] The crushing mechanism 8 comprises an upper fixed block 81 and a lower fixed block 82 . The upper fixed block 81 is movable above the lower fixed block 82 . The outer portions of the upper fixed block 81 and the lower fixed block 82 are both provided with fan-shaped blades 810 that can be folded and unfolded.

[0037] A support seat 3 is provided at the top of the pile rod 1, a pile tooth 21 is fixedly connected to the bottom of the pile hammer 2, a support rod 5 is fixedly connected to the top of the support seat 3, the support rod 5 is installed on the guide frame of the piling device, a lifting power device is provided on the outside of the support rod 5, an output shaft 6 is rotatably connected inside the support rod 5, a rotation driving device is provided on the outside of the output shaft 6, a driving collar 4 is fixedly connected to the bottom of the support seat 3, the driving collar 4 is rotatably connected to the top of the pile rod 1, a driving assembly 7 is installed inside the driving collar 4, and the driving assembly 7 is used to transmit the rotation output of the output shaft 6 to the pile rod 1 and the crushing mechanism 8.

[0038] When the present invention is working, the pile driving device starts the lifting power device, and the lifting power device drives the support rod 5 to move on the guide frame. At the same time, the rotating drive device drives the output shaft 6 to rotate. The output shaft 6 drives the pile rod 1 and the crushing mechanism 8 to rotate through the driving assembly 7. The pile rod 1 drives the pile hammer 2 to rotate, and the pile teeth 21 at the bottom of the pile hammer 2 crush the surrounding soil. The crushing mechanism 8 is located inside the pile hammer 2. The crushing mechanism 8 is used to crush the soil inside the pile hammer 2, and the crushing mechanism 8 can transport the soil inside the pile hammer 2 to the inside of the pile rod 1.

[0039] refer to Fig. 9 and Fig.10 , wherein the number of the fan-shaped blades 810 at the bottom is equal to that of the fan-shaped blades 810 at the top, and they are staggered alternately up and down, and the fan-shaped blades 810 at the top and the fan-shaped blades 810 at the bottom are both in an unfolded state, and the fan-shaped blades 810 at the top and the fan-shaped blades 810 at the bottom form a circular fan-shaped state that overlaps up and down, and the outer sides of the fan-shaped blades 810 are in contact with the inner wall of the pile hammer 2.

[0040] The fan-shaped blade 810 is set to be sickle-shaped, and the tip of the fan-shaped blade 810 in the converged state faces upward, and the tip of the fan-shaped blade 810 is in the same direction as the rotation direction.

[0041] Therefore, during the operation of the crushing mechanism 8, when the pile hammer 2 is in the piling state, the fan-shaped blades 810 are in the contracted state (such as Fig. 9), the upper and lower layers of spiral fan-shaped blades 810 can be used as spiral blades, and the tips of the fan-shaped blades 810 are facing upward at the same time, so the fan-shaped blades 810 can improve the crushing effect of the soil during rotation, and can make the crushed soil push upward under the action of the blade body of the fan-shaped blade 810, so that the soil enters the interior of the pile rod 1, and can lift the soil inside the pile hammer 2 upward, so that the crushed soil moves to the interior of the pile rod 1. At the same time, because the fan-shaped blades 810 are provided with two layers, the crushing effect of the soil inside the pile hammer 2 is improved, and the soil transportation speed is accelerated.

[0042] When the pile hammer 2 is lifted upward, the fan-shaped blades 810 can be controlled to be in an unfolded state (such as Fig.10 ), the fan-shaped blades 810 alternately distributed up and down have a blocking effect on the outlet position of the pile hammer 2, so that the fan-shaped blades 810 in the expanded state and the pile hammer 2 form a relatively sealed space, which can prevent soil from scattering, thereby facilitating the transportation of soil generated by piling during the foundation piling process, and the process can be automatically completed by the present invention without the participation or assistance of staff to unload the soil, thereby improving the use effect of the present invention.

[0043] refer to Figure 8 In an optional embodiment, the driving assembly 7 includes a sun gear 71 fixedly connected to the bottom end of the output shaft 6, the sun gear 71 is externally meshed with a planetary gear 72, the planetary gear 72 is externally meshed with a gear ring 73, the gear ring 73 is fixedly connected to the inside of the driving sleeve ring 4, at least two groups of planetary gears 72 are provided, the bottom ends of the shafts of the two groups of planetary gears 72 are rotatably connected with a driving ring 75, the driving ring 75 is fixedly connected to the pile rod 1, the bottom of the sun gear 71 is fixedly connected with a sleeve shaft 74, the inside of the pile rod 1 is fixedly connected with a plurality of fixed brackets 76 for supporting the sleeve shaft 74, the driving ring 75 is used to drive the pile rod 1 to rotate, and the sleeve shaft 74 is used to drive the crushing mechanism 8 to rotate.

[0044] The driving collar 4 is used to protect the driving assembly 7 , and is also used to support the pile rod 1 so that the pile rod 1 is rotatably mounted on the bottom of the driving collar 4 .

[0045] It should be noted that the output shaft 6 is connected to the external main drive. During the rotation of the output shaft 6, the output shaft 6 drives the sun gear 71 to rotate, thereby driving the planetary gear 72 to rotate. Since the ring gear 73 is fixedly connected to the outside of the driving ring 4, during the rotation of the sun gear 71, the planetary gear 72 revolves around the sun gear 71 under the action of the ring gear 73. At the same time, the rotation direction of the planetary gear 72 is the same as the rotation direction of the sun gear 71, and the rotation speed of the planetary gear 72 is less than the rotation speed of the sun gear 71.

[0046] The driving ring 75 is installed at the bottom of the shaft end of the planetary gear 72 , so the rotation speed of the planetary gear 72 is the rotation speed of the driving ring 75 . The driving ring 75 drives the pile rod 1 to rotate, thereby driving the pile hammer 2 to rotate.

[0047] The sun gear 71 drives the sleeve shaft 74 to rotate, thereby driving the upper and lower fan-shaped blades 810 to rotate through the upper fixed block 81 and the lower fixed block 82 .

[0048] By setting the driving assembly 7, the pile hammer 2 and the fan-shaped blade 810 are rotated synchronously in the same direction under the rotation of the output shaft 6 during the piling process, and the pile hammer 2 rotates slowly on the outside, and the fan-shaped blade 810 rotates quickly inside the pile hammer 2, thereby preventing the soil driven by the pile hammer 2 from accumulating inside the pile hammer 2. The fan-shaped blade 810 can quickly drive the soil inside the pile hammer 2 into the inside of the pile rod 1 for storage, thereby ensuring the stability of the entire piling process.

[0049] refer to Figure 6 and Figure 7 In an optional embodiment: the sleeve shaft 74 includes an outer shaft rod 741 and an inner shaft rod 742, the outer shaft rod 741 is sleeved on the outside of the inner shaft rod 742, and a positioning collar 743 is fixedly connected to the bottom end of the outer shaft rod 741. The upper fixed block 81 and the lower fixed block 82 are both provided with a through shaft sleeve hole 83, and the outer shaft rod 741 is inserted into the shaft sleeve holes 83 of the upper fixed block 81 and the lower fixed block 82. The bottom of the outer shaft rod 741 is fixedly connected to a limiting block 744. The outer shaft rod 741, the inner shaft rod 742 and the positioning collar 743 are used to drive the upper fixed block 81 and the lower fixed block 82 to rotate.

[0050] It should be noted that the limiting block 744 is used to stabilize the upper fixing block 81 and the lower fixing block 82 to prevent the upper fixing block 81 and the lower fixing block 82 from being dislocated.

[0051] It should be noted that the positioning ring 743 is fixed to the inside of the outer shaft 741 by bolts. When the fan-shaped blade 810 needs maintenance, the limit block 744 is removed and the connection between the positioning ring 743 and the outer shaft 741 is released. At this time, the inner shaft 742 is driven to move downward. The inner shaft 742 can push the upper fixing block 81 and the lower fixing block 82 to move downward, and finally the positioning ring 743 is separated from the outer shaft 741.

[0052] When the positioning ring 743 is separated from the outer shaft 741, the fan-shaped blade 810 can be controlled to be separated from the positioning ring 743, and at the same time separated from the upper fixing block 81 and the lower fixing block 82 and the inner shaft 742, so that the fan-shaped blade 810 can be removed, thereby facilitating the maintenance of the fan-shaped blade 810.

[0053] refer to Figure 3-Figure 5In an optional embodiment, the upper fixed block 81 and the lower fixed block 82 have the same main structure, and both the upper fixed block 81 and the lower fixed block 82 are provided with a plurality of blade grooves 84, and the interior of the blade groove 84 is fixedly connected with an upper stop block 85 and a lower stop block 86, the height of the upper fixed block 81 is greater than the height of the lower fixed block 82, and the upper fixed block 81 is provided with a through connecting hole 87, and the tail of the fan-shaped blade 810 is fixedly connected with a blade tail root 811, and the blade tail root 811 is rotatably connected to the interior of the blade groove 84, and the tail of the blade tail root 811 is hinged with a connecting rod 812, the fan-shaped blade 810 movably connected to the lower fixed block 82 is the bottom fan-shaped blade 810, and the fan-shaped blade 810 movably connected to the upper fixed block 81 is the top fan-shaped blade 810, the bottom connecting rod 812 passes through the connecting hole 87 and extends to the top of the upper fixed block 81, the bottom connecting rod 812 is set as a telescopic rod, the connecting rods 812 of the bottom fan-shaped blade 810 and the top fan-shaped blade 810 are both hinged inside the positioning ring 743, and the upper fixed block 81 and the lower fixed block 82 are both slidably connected to the inner shaft rod 742.

[0054] It should be noted that the upper fixing block 81 is inserted into the interior of the outer shaft rod 741. Within the upper and lower movable range of the upper fixing block 81, the top of the upper fixing block 81 is slidably connected to the interior of the outer shaft rod 741, thereby protecting the interior of the outer shaft rod 741. A sealing ring is provided between the top of the positioning ring 743 and the inner shaft rod 742, and the sealing ring can be made of sealing felt.

[0055] It should be noted that the upper fixing block 81 and the lower fixing block 82 are both splicing structures, including but not limited to upper and lower splicing or inner and outer splicing, and then fixed by bolts, wherein the fan-shaped blade 810 is detachably installed inside the upper fixing block 81 and the lower fixing block 82.

[0056] It should be noted that the telescopic range of the bottom connecting rod 812 is the separable range of the upper fixing block 81 and the lower fixing block 82 .

[0057] Among them, the upper driving block 88 is fixedly connected to the inside of the sleeve hole 83 of the upper fixed block 81, and the lower driving block 89 is fixedly connected to the inside of the sleeve hole 83 of the lower fixed block 82. The outer part of the inner shaft rod 742 is provided with an upper driving groove 7421 and a lower driving groove 7422. The upper driving block 88 is slidably connected to the inside of the upper driving groove 7421, and the lower driving block 89 is slidably connected to the inside of the lower driving groove 7422. The length of the upper driving groove 7421 is greater than the length of the lower driving groove 7422.

[0058] It should be noted that the length difference between the upper driving slot 7421 and the lower driving slot 7422 is adapted to the telescopic range of the bottom connecting rod 812 .

[0059] It should be noted that the bottom of the upper driving groove 7421 and the lower driving groove 7422 are composed of movable inserts, which are fixedly connected to the top of the limit block 744. The limit block 744 is inserted into the inside of the inner shaft rod 742 through the insert, and then the limit block 744 and the inner shaft rod 742 are fixed by bolts.

[0060] The lengths of the upper driving slide groove 7421 and the lower driving slide groove 7422 are regulated by the lengths of the insert strips.

[0061] After the limiting block 744 is disassembled, the upper fixing block 81 , the lower fixing block 82 and the inner shaft 742 can be separated through the upper driving groove 7421 and the lower driving groove 7422 .

[0062] The process of controlling the expansion or contraction of the fan-shaped blade 810 includes:

[0063] refer to Figure 6 , Figure 7 , Fig. 9 and Fig.10 When the fan-shaped blade 810 is controlled to expand, the inner shaft rod 742 is controlled to move upward inside the outer shaft rod 741, and the low point of the lower driving slot 7422 first contacts the lower driving block 89, and the lower driving slot 7422 drives the lower fixed block 82 to move upward through the lower driving block 89, and at this time, the bottom connecting rod 812 is compressed. When the bottom connecting rod 812 reaches the shortest state, the top surface of the lower fixed block 82 is attached to the bottom surface of the upper fixed block 81, and the low point of the upper driving slot 7421 contacts the upper driving block 88. When the inner shaft rod 742 moves upward again, based on the lever principle, the connection points of the upper and lower fixed blocks 81 and the fan-shaped blade 810 are lifted upward, and the tail distance of the blade tail root 811 is limited. Therefore, the fan-shaped blade 810 is deflected upward as a whole, so that the upper and lower layers of the fan-shaped blade 810 are gradually expanded.

[0064] Similarly, when it is necessary to control the fan-shaped blades 810 to converge, the inner shaft rod 742 is controlled to move downward. Since the length of the lower driving slot 7422 is smaller than the upper driving slot 7421, the apex of the lower driving slot 7422 first contacts the lower driving block 89, and the lower driving slot 7422 drives the lower fixed block 82 to move downward through the lower driving block 89, so that the lower fixed block 82 stretches the bottom connecting rod 812, and when the bottom connecting rod 812 reaches the longest state, the apex of the upper driving slot 7421 contacts the upper driving block 88, and the inner shaft rod 742 is continued to be controlled to move downward, and the upper and lower layers of fan-shaped blades 810 are gradually converged, and the two layers of fan-shaped blades 810 in the converged state are provided with a spacing, so that the fan-shaped blades 810 can crush and transport the soil inside the pile hammer 2.

[0065] refer to Figure 1 and Figure 8In an optional embodiment: a hydraulic driver 9 is provided on the outside of the inner shaft 742 for driving the inner shaft 742 to slide up and down inside the outer shaft 741, the hydraulic driver 9 is installed inside the support seat 3, the hydraulic driver 9 is rotatably connected to the outside of the output shaft 6, the sleeve shaft 74 is configured as a hydraulically driven combined shaft, and the hydraulic driver 9 is used to control the oil level of the sleeve shaft 74.

[0066] Among them, a pump oil pipe is arranged outside the hydraulic driver 9, and the pump oil pipe is connected to an external hydraulic oil pump.

[0067] It should be noted that an oil pressure chamber is provided between the outer shaft rod 741 and the inner shaft rod 742 , and the oil volume in the oil pressure chamber is controlled by the hydraulic driver 9 to realize the control of the states of the outer shaft rod 741 and the inner shaft rod 742 .

[0068] When the hydraulic driver 9 pumps oil into the oil pressure chamber, the inner shaft 742 moves downward inside the outer shaft 741 ; when the hydraulic driver 9 draws oil into the oil pressure chamber, the inner shaft 742 moves upward inside the outer shaft 741 .

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building foundation piling device, comprising a pile rod (1) and a pile hammer (2), wherein the pile rod (1) is fixedly connected to the top of the pile hammer (2), and is characterized in that: A crushing mechanism (8) is arranged inside the pile hammer (2), and a driving assembly (7) is arranged outside the pile hammer (2) and the crushing mechanism (8); The crushing mechanism (8) comprises an upper fixed block (81) and a lower fixed block (82); the upper fixed block (81) is movable above the lower fixed block (82); and the outer portions of the upper fixed block (81) and the lower fixed block (82) are both provided with fan-shaped blades (810) that can be folded and unfolded; A support seat (3) is provided at the top of the pile rod (1), a pile tooth (21) is fixedly connected to the bottom of the pile hammer (2), a support rod (5) is fixedly connected to the top of the support seat (3), a driving collar (4) is fixedly connected to the bottom of the support seat (3), the driving collar (4) is rotatably connected to the top of the pile rod (1), and the driving assembly (7) is installed inside the driving collar (4); The driving assembly (7) comprises a sun gear (71) fixedly connected to the bottom end of the output shaft (6); the sun gear (71) is meshedly connected to the outside of the sun gear (71); the planet gear (72) is meshedly connected to the outside of the planet gear (72); the ring gear (73) is fixedly connected to the inside of the driving sleeve ring (4); at least two groups of planet gears (72) are provided; the bottom ends of the shafts of the two groups of planet gears (72) are rotatably connected to drive rings (75); the drive rings (75) are fixedly connected to the pile rod (1); the bottom of the sun gear (71) is fixedly connected to a sleeve shaft (74); and the inside of the pile rod (1) is fixedly connected to a plurality of fixed brackets (76); The rotation direction of the planetary gear (72) is the same as the rotation direction of the sun gear (71), and the rotation speed of the planetary gear (72) is lower than the rotation speed of the sun gear (71); The sleeve shaft (74) comprises an outer shaft rod (741) and an inner shaft rod (742), the outer shaft rod (741) is sleeved on the outside of the inner shaft rod (742), a positioning collar (743) is fixedly connected to the bottom end of the outer shaft rod (741), the upper fixing block (81) and the lower fixing block (82) are both provided with a shaft sleeve hole (83) extending therethrough, the outer shaft rod (741) is inserted into the shaft sleeve holes (83) of the upper fixing block (81) and the lower fixing block (82), and the bottom of the outer shaft rod (741) is fixedly connected to a limiting block (744); The number of the fan-shaped blades (810) at the bottom is equal to that of the fan-shaped blades (810) at the top, and they are staggered and arranged alternately up and down. The fan-shaped blades (810) at the top and the fan-shaped blades (810) at the bottom are both in an unfolded state. The fan-shaped blades (810) at the top and the fan-shaped blades (810) at the bottom form a circular fan-shaped state that overlaps up and down, and the outer sides of the fan-shaped blades (810) are in contact with the inner wall of the pile hammer (2); The fan-shaped blade (810) is arranged in a sickle shape, and the tip of the fan-shaped blade (810) in a retracted state faces upward, and the tip of the fan-shaped blade (810) is in the same direction as the rotation direction.

2. A building foundation piling device according to claim 1, characterized in that: The upper fixed block (81) and the lower fixed block (82) have the same main structure. The upper fixed block (81) and the lower fixed block (82) are both provided with a plurality of blade grooves (84). The interior of the blade grooves (84) is fixedly connected with an upper stop block (85) and a lower stop block (86). The height of the upper fixed block (81) is greater than the height of the lower fixed block (82). The upper fixed block (81) is provided with a through-going connecting hole (87). The tail of the fan-shaped blade (810) is fixedly connected with a blade tail root (811). The blade tail root (811) is rotatably connected to the interior of the blade groove (84). The tail of the blade tail root (811) is hinged with a connecting rod (812). ), the fan-shaped blade (810) movably connected to the lower fixed block (82) is the bottom fan-shaped blade (810), and the fan-shaped blade (810) movably connected to the upper fixed block (81) is the top fan-shaped blade (810), the bottom connecting rod (812) passes through the connecting hole (87) and extends to the top of the upper fixed block (81), the bottom connecting rod (812) is configured as a telescopic rod, the connecting rods (812) of the bottom fan-shaped blade (810) and the top fan-shaped blade (810) are both hinged inside the positioning ring (743), and the upper fixed block (81) and the lower fixed block (82) are both slidably connected to the inner shaft rod (742).

3. A building foundation piling device according to claim 2, characterized in that: An upper driving block (88) is fixedly connected inside the shaft sleeve hole (83) of the upper fixed block (81), and a lower driving block (89) is fixedly connected inside the shaft sleeve hole (83) of the lower fixed block (82). An upper driving groove (7421) and a lower driving groove (7422) are provided outside the inner shaft rod (742). The upper driving block (88) is slidably connected inside the upper driving groove (7421), and the lower driving block (89) is slidably connected inside the lower driving groove (7422). The length of the upper driving groove (7421) is greater than the length of the lower driving groove (7422).

4. A building foundation piling device according to claim 3, characterized in that: A hydraulic driver (9) is arranged outside the inner shaft (742), the hydraulic driver (9) is installed inside the support seat (3), the hydraulic driver (9) is rotatably connected to the outside of the output shaft (6), and the sleeve shaft (74) is arranged as a hydraulically driven combined shaft.

5. A building foundation piling device according to claim 4, characterized in that: An oil pump pipe is provided outside the hydraulic drive (9), and the oil pump pipe is connected to an external hydraulic oil pump.

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