Piling device for constructional engineering

Abstract

The utility model discloses a piling device for constructional engineering, which relates to the technical field of constructional engineering, aims to solve the technical problem that a fixed column is easy to skew in the working process of a piling machine, and comprises a base, a piling hammer, a support guide mechanism, a power mechanism and a self-unloading support structure, the self-unloading supporting structure comprises a supporting cross beam, universal wheels and locking supports. The locking support can rotate with the joint of the rotating rod and the connecting rod as the axis, and the supporting arms are made to be distributed in the X-axis direction. Due to the arrangement of the self-unloading supporting structure, when the locking support rotates with the joint of the rotating rod and the connecting rod as the axis, the supporting arms are distributed in the X-axis direction, and the lowest face of each supporting arm is lower than the lowest face of the corresponding universal wheel when the supporting arms are distributed in the X-axis direction, the whole device is stably supported, manual hand holding is not needed, and the working efficiency is improved. The technical problem that a fixing column is prone to inclining in the working process of an existing pile driver is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically to a construction engineering piling device. Background Art

[0002] A lot of electromechanical equipment is needed on construction sites. When using electromechanical equipment, it is necessary to power the equipment, which requires laying cables. When laying cables, in order to ensure the safety of workers on the construction site and the safety of the cables, fixed columns are used to support the cables. When installing existing fixed columns, a portable small pneumatic pile driver is used to install the fixed columns on the ground. However, when using the existing pile driver, workers need to manually hold the pile driver to allow the fixed column to be vertically inserted into the soil. When manually assisted, it is difficult to completely straighten the fixed column, and the fixed column often appears crooked. In view of this, we propose a construction engineering piling device. Utility Model Content

[0003] The utility model aims to provide a construction engineering piling device to solve the technical problem that the fixed column is easy to be skewed during the working process of the current pile driver.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a construction engineering piling device, comprising:

[0005] a base having a cavity open at both the top and the bottom;

[0006] A pile hammer is arranged directly above the base, and the pile hammer can move longitudinally and pass through the cavity of the base to below it;

[0007] A support guide mechanism, supported and arranged above one side of the base;

[0008] A power mechanism is arranged on the supporting and guiding mechanism, and an output end of the power mechanism is connected to the pile hammer, so as to drive the pile hammer to move longitudinally;

[0009] A self-unloading support structure, arranged at the bottom of the base, for supporting the base;

[0010] Wherein, the self-unloading support structure comprises a supporting beam, a universal wheel and a locking support; the supporting beam is laterally supported and fixed on the lower side of the outer wall of the base; the universal wheel is installed in the middle of the bottom surface of the supporting beam; the locking support comprises a rotating rod, a connecting rod and a supporting arm connected together, the rotating rod is connected to the connecting rod at an obtuse angle, and the connection between the rotating rod and the connecting rod is rotatably connected to the far end of the supporting beam through a rotating shaft, and the supporting arm is vertically connected to the other end of the connecting rod;

[0011] The locking support can rotate with the connection between the rotating rod and the connecting rod as the axis, so that the support arm is distributed along the X-axis, and the height of the lowest surface of the support arm when distributed along the X-axis is lower than the height of the lowest surface of the universal wheel.

[0012] The utility model arranges a self-unloading support structure, when the locking support rotates with the connection point of the rotating rod and the connecting rod as the axis, and the support arm is distributed along the X-axis direction, and the height of the lowest surface of the support arm when distributed along the X-axis direction is lower than the height of the lowest surface of the universal wheel, the device as a whole is stably supported without manual support, thereby solving the technical problem that the fixed column is prone to tilting during the operation of the current pile driver.

[0013] Preferably, an arc-shaped groove extending from the proximal end to the distal end is formed at the bottom of the support beam; a groove is formed on the top surface of the support beam near the middle thereof, and a pin hole connected to the arc-shaped groove is formed on the groove.

[0014] Preferably, an arc-shaped plug rod is fixedly provided at the other end of the support arm and extends toward the connection direction between the rotating rod and the connecting rod, and an insertion hole is provided near the distal end of the arc-shaped plug rod, so that when the support arm is rotated to be distributed along the X-axis direction, the arc-shaped plug rod can be completely inserted into the arc-shaped groove, and the pin hole is communicated with the insertion hole.

[0015] Preferably, the self-unloading support structure also includes a triangular rod, a first rotating arm, a second rotating arm and a latch; the middle corner of the triangular rod is rotatably connected to the middle part of the supporting beam through a rotating shaft; one end of the first rotating arm is rotatably connected to the upper side of the outer wall of the base through a rotating shaft, and the other end of the first rotating arm is rotatably connected to one corner of the triangular rod through a rotating shaft; one end of the second rotating arm is rotatably connected to the other corner of the triangular rod through a rotating shaft, and the other end of the second rotating arm is rotatably connected to the other end of the rotating rod through a rotating shaft; the rod end of the latch can pass through the groove and be inserted into the pin hole and the socket in sequence.

[0016] Preferably, the support and guide mechanism comprises a support plate, a spring arm, a first connecting shaft, a guide slider and a second connecting shaft; the support plate support is fixed to the upper end of one side of the base, and a first shaft hole is provided in the middle of the upper side of the support plate, and a second shaft hole and a third shaft hole are symmetrically provided at both ends of the upper side of the support plate, a guide groove distributed along its height direction is provided on the lower side of the support plate, a limit block is fixedly provided at the bottom of the support plate, and a sliding groove is provided on the front side of the limit block; the bottom end of the spring arm is fixedly connected to the bottom wall of the guide groove through the first connecting shaft; the guide slider is slidably connected to the guide groove; one end of the second connecting shaft is fixedly connected to the guide slider, and the middle part of the second connecting shaft is sleeved on the top end of the spring arm.

[0017] Preferably, the power mechanism includes a servo motor, a reducer, a driving gear, a first transmission gear, a second transmission gear, a first bevel gear, a second bevel gear and a push rod; the servo motor and the reducer are respectively mounted on the upper and rear ends of the support plate, and the input end of the reducer is connected to the output shaft of the servo motor; the axle of the driving gear passes through the first shaft hole and is coaxially connected to the output end of the reducer; the axle of the first transmission gear is rotatably connected to the second shaft hole through a bearing, and the first transmission gear is meshed with the driving gear; the axle of the second transmission gear is rotatably connected to the third shaft hole through a bearing, and the second transmission gear is meshed with the The driving gear is meshed and connected; the axle of the first bevel gear is coaxially connected to the axle of the first transmission gear; the axle of the second bevel gear is coaxially connected to the axle of the second transmission gear; the push rod includes a double-sided rack, a sliding rod connected to the bottom of the double-sided rack, and a limit plate connected between the double-sided rack and the sliding rod, the middle part of the double-sided rack is fixedly connected to the other end of the second connecting shaft, and the teeth on both sides of the double-sided rack are respectively meshed with the first bevel gear and the second bevel gear, the sliding rod is sleeved on the slide groove and causes the limit plate to be limited above the two side walls of the slide groove, and the pile hammer is fixed at the bottom of the sliding rod.

[0018] Preferably, the self-unloading support structures are provided in three groups, and the three groups of the self-unloading support structures are distributed in a triangle and are respectively installed on the bottom of the base.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model sets a self-unloading support structure. When the locking support rotates with the connection between the rotating rod and the connecting rod as the axis, the support arm is distributed along the X-axis direction. When the support arm is distributed along the X-axis direction, the height of the lowest surface is lower than the height of the lowest surface of the universal wheel, thereby providing stable support for the entire device without manual support, thereby solving the technical problem that the fixed column is prone to tilt during the operation of the current pile driver.

[0021] 2. The utility model provides a latch pin. When the locking support rotates with the connection between the rotating rod and the connecting rod as the axis, the arc-shaped plug rod can be completely inserted into the arc-shaped groove. At this time, the pin hole is connected with the plug hole, and the support arm is distributed along the X-axis. Then, the rod end of the latch pin passes through the groove and is inserted into the pin hole and the plug hole in turn, thereby locking the state of the locking support, and the bottom surface of the locking support is in stable contact with the ground.

[0022] 3. The utility model also adopts the setting of the power mechanism, the power mechanism as a whole is a double bevel gear structure, and the overall radial distribution is conducive to saving plane layout space, and the double-sided gear structure can ensure the balance and stability of the push rod, thereby providing a stable hammering force for the pile hammer.

[0023] 4. The utility model also provides a guiding support for the power mechanism and the pile hammer by setting a supporting guide mechanism, and the spring arm provides a buffering effect, which can reduce the possibility of the second connecting shaft breaking due to the vibration generated by the impact force of the rapid movement of the push rod, thereby improving the stability of the pile hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a construction engineering piling device of the utility model;

[0025] Figure 2 It is a structural schematic diagram of an embodiment of the connection between the self-unloading support structure and the base of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a partially disassembled embodiment of the self-unloading support structure of the utility model;

[0027] Figure 4 It is a structural schematic diagram of an embodiment of the connection between the support and guide mechanism and the power mechanism of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a separate embodiment of the support and guide mechanism and the power mechanism of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Base; 2. Pile hammer; 3. Support guide mechanism; 31. Support plate; 311. First shaft hole; 312. Second shaft hole; 313. Third shaft hole; 314. Guide groove; 315. Limit block; 3151. Slide groove; 32. Spring arm; 33. First connecting shaft; 34. Guide slider; 35. Second connecting shaft; 4. Power mechanism; 41. Servo motor; 42. Reducer; 43. Driving gear; 44. First transmission gear; 45. Second transmission gear; 46. First Bevel gear; 47, second bevel gear; 48, push rod; 481, double-sided rack; 482, sliding rod; 483, limit plate; 5, self-unloading support structure; 51, supporting beam; 511, arc groove; 512, groove; 513, pin hole; 52, universal wheel; 53, locking support; 531, rotating rod; 532, connecting rod; 533, supporting arm; 534, arc plug rod; 535, plug hole; 54, triangular rod; 55, first rotating arm; 56, second rotating arm; 57, latch. DETAILED DESCRIPTION

[0031] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further described in conjunction with the drawings of the specification. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] like Figure 1 As shown, the utility model relates to a construction engineering piling device, which comprises a base 1, a piling hammer 2, a supporting and guiding mechanism 3, a power mechanism 4 and a self-unloading supporting structure 5.

[0033] Specifically, Figure 1-Figure 3 As shown, the base 1 of this embodiment is a circular tube structure with openings at the top and bottom and a cavity inside.

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, the support plate 31, spring arm 32, first connecting shaft 33, guide slider 34 and second connecting shaft 35 of this embodiment; the support plate 31 is vertically supported, and the bottom of the support plate 31 is welded and fixed to the upper end of one side of the base 1 or connected as one piece, and a first shaft hole 311 is opened in the middle of the upper side of the support plate 31, a second shaft hole 312 and a third shaft hole 313 are symmetrically opened on the upper side of the support plate 31 and located at both ends of the first shaft hole 311, and a guide groove 312 distributed along its height direction is opened on the lower side of the support plate 31 14. A limiting block 315 is welded to or integrally connected with the bottom of the support plate 31, and a slide groove 3151 is provided on the front side of the limiting block 315. The spring arm 32 of this embodiment is composed of a spring and a telescopic rod arranged inside the spring. The bottom end of the spring arm 32 is fixedly connected to the bottom wall of the guide groove 314 through the first connecting shaft 33. The guide slider 34 is slidably connected to the guide groove 314. One end of the second connecting shaft 35 is fixedly connected to the guide slider 34, and the middle part of the second connecting shaft 35 is sleeved on the top end of the spring arm 32.

[0035] like Figure 1 , Figure 4 and Figure 5As shown, the present embodiment includes a servo motor 41, a reducer 42, a driving gear 43, a first transmission gear 44, a second transmission gear 45, a first bevel gear 46, a second bevel gear 47 and a push rod 48; the servo motor 41 and the reducer 42 are respectively mounted on the upper rear end of the support plate 31 by screws, and the input end of the reducer 42 is connected to the output shaft of the servo motor 41; the axle of the driving gear 43 passes through the first shaft hole 311 and is coaxially connected to the output end of the reducer 42. Specifically, the axle of the driving gear 43 is connected to the first shaft hole 311. The hole walls of the first transmission gear 44 are connected by bearings; the axle of the first transmission gear 44 is rotatably connected to the second shaft hole 312 through a bearing, and the first transmission gear 44 is meshed with the driving gear 43; the axle of the second transmission gear 45 is rotatably connected to the third shaft hole 313 through a bearing, and the second transmission gear 45 is meshed with the driving gear 43; the axle of the first bevel gear 46 is coaxially welded or integrally connected to the axle of the first transmission gear 44; the axle of the second bevel gear 47 is coaxially welded or integrally connected to the axle of the second transmission gear 45;

[0036] The push rod 48 of this embodiment includes a double-sided rack 481, a sliding rod 482 welded or integrally connected to the bottom of the double-sided rack 481, and a limit plate 483 welded or integrally connected between the double-sided rack 481 and the sliding rod 482. The middle of the double-sided rack 481 is welded and fixed to the other end of the second connecting shaft 35, and the teeth on both sides of the double-sided rack 481 are respectively meshed with the first bevel gear 46 and the second bevel gear 47. The sliding rod 482 is sleeved on the slide groove 3151 and causes the limit plate 483 to be limited above the two side walls of the slide groove 3151. The power mechanism 4 is a double bevel gear structure as a whole, which is radially distributed as a whole, which is conducive to saving plane layout space, and the double-sided gear structure can ensure the balance and stability of the push rod 48, thereby providing a stable hammering force for the pile hammer 2.

[0037] The spring arm 32 provides a buffering effect, which can reduce the possibility of the second connecting shaft 35 being broken due to the vibration generated by the impact force of the rapid movement of the push rod 48, thereby improving the hammering stability of the pile hammer 2.

[0038] like Figure 1-Figure 3As shown, the self-unloading support structure 5 of this embodiment includes a supporting crossbeam 51, a universal wheel 52, a locking support 53, a triangular rod 54, a first rotating arm 55, a second rotating arm 56 and a latch 57; wherein the supporting crossbeam 51 is arranged horizontally, and one end thereof is welded or integrally connected and fixed to the lower side of the outer wall of the base 1, and an arc groove 511 extending from its proximal end to its distal end is provided at the bottom of the supporting crossbeam 51; a groove 512 is provided on the top surface of the supporting crossbeam 51 and near the middle thereof, and a pin hole 513 connected to the arc groove 511 is provided on the groove 512; the universal wheel 52 is installed in the middle of the bottom surface of the supporting crossbeam 51; the locking support 53 includes a rotating rod 531, a connecting rod 532 and a supporting arm 53 connected together. 3. The lower end of the rotating rod 531 is welded and fixed to the upper end of the connecting rod 532 or is integrally connected, and the rotating rod 531 and the connecting rod 532 are connected at an obtuse angle. The connection between the rotating rod 531 and the connecting rod 532 is rotatably connected to the distal end of the supporting beam 51 through a rotating shaft. The supporting arm 533 is vertically connected to the lower end of the connecting rod 532, and the other end of the supporting arm 533 is integrally connected with an arc-shaped plug rod 534 extending toward the connection between the rotating rod 531 and the connecting rod 532, and a plug hole 535 is provided near the distal end of the arc-shaped plug rod 534. When the supporting arm 533 is rotated to its X-axis distribution, the arc-shaped plug rod 534 can be completely inserted into the arc-shaped groove 511, and the pin hole 513 is communicated with the plug hole 535.

[0039] like Figure 1 , Figure 4 and Figure 5 As shown, the pile hammer 2 of this embodiment is located directly above the base 1 and is welded to the bottom of the sliding rod 482 . The power mechanism 4 can drive the pile hammer 2 to move longitudinally in the cavity of the base 1 and can move to the bottom of the base 1 .

[0040] As another embodiment of the present invention, Figure 1 As shown, according to the triangle stability principle, the self-unloading support structure 5 of this embodiment is provided with three groups, and the three groups of self-unloading support structures 5 are distributed in a triangle and are respectively installed at the bottom of the base 1.

[0041] Working principle: This embodiment provides a construction engineering pile driving device. In the initial state, the pile hammer 2 is located above the base 1 and has a certain distance from the base 1. Due to the action of the universal wheel 52, the pile driving device can be pushed to move as a whole until it moves to the pre-piling position. Then the worker manually moves the locking support 53, so that the locking support 53 as a whole rotates downward with the connection between the rotating rod 531 and the connecting rod 532 as the axis. During the rotation, the arc-shaped plug rod 534 will pierce the soil and gradually insert into the arc-shaped groove 511. At this time, the pin hole 513 is connected with the plug hole 535, and the support arm 533 is in the X-axis direction and abuts against the soil. Then the rod end of the pin 57 passes through the groove 512 and is inserted into the pin hole 513 and the plug hole 535 in turn, thereby locking the state of the locking support 53. The bottom surface of the locking support 53 is in stable contact with the ground; then the wood pile is put into the opening above the base 1 and sleeved in the inner cavity of the base 1, so that the wood pile is placed vertically in the pre-piling position; when in use, the servo motor 41 and the reducer 42 are started, and the output shaft of the servo motor 41 drives the reducer 42 to work, and the output end of the reducer 42 drives the driving gear 43 to rotate, and then due to the effect of meshing transmission, the first transmission gear 44 and the second transmission gear 45 can be driven to rotate, and the first transmission gear 44 and the second transmission gear 45 can respectively drive the first bevel gear 46 and the second bevel gear 47 to rotate, and the first bevel gear 46 and the second bevel gear 47 can simultaneously push the push rod 48 to move downward, and then drive the pile hammer 2 to move downward quickly and hit the wood pile, and the above-mentioned striking operation can be repeated to achieve a stable piling operation.

[0042] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A construction engineering piling device, characterized in that: include: A base (1) having a cavity with openings at the top and bottom; A pile hammer (2) is arranged directly above the base (1), and the pile hammer (2) can move longitudinally and pass through the cavity of the base (1) to the bottom thereof; A support guide mechanism (3) supported and arranged above one side of the base (1); A power mechanism (4) is arranged on the supporting and guiding mechanism (3), and an output end of the power mechanism (4) is connected to the pile hammer (2) for driving the pile hammer (2) to move longitudinally; A self-unloading support structure (5), arranged at the bottom of the base (1) and used to support the base (1); Wherein, the self-unloading support structure (5) comprises a supporting beam (51), a universal wheel (52) and a locking support (53); the supporting beam (51) is laterally supported and fixed on the lower side of the outer wall of the base (1); the universal wheel (52) is installed in the middle of the bottom surface of the supporting beam (51); the locking support (53) comprises a rotating rod (531), a connecting rod (532) and a supporting arm (533) connected together, the rotating rod (531) and the connecting rod (532) are connected at an obtuse angle, and the connection between the rotating rod (531) and the connecting rod (532) is rotatably connected to the far end of the supporting beam (51) through a rotating shaft, and the supporting arm (533) is vertically connected to the other end of the connecting rod (532); The locking support (53) can rotate with the connection point between the rotating rod (531) and the connecting rod (532) as the axis, so that the support arm (533) is distributed along the X-axis direction, and the height of the lowest surface of the support arm (533) is lower than the height of the lowest surface of the universal wheel (52) when the support arm (533) is distributed along the X-axis direction.

2. The construction engineering piling device according to claim 1, characterized in that: The bottom of the supporting crossbeam (51) is provided with an arc-shaped groove (511) extending from its proximal end to its distal end; the top surface of the supporting crossbeam (51) is provided with a groove (512) near the middle thereof, and the groove (512) is provided with a pin hole (513) connected with the arc-shaped groove (511).

3. The construction engineering piling device according to claim 2, characterized in that: The other end of the support arm (533) is fixedly provided with an arc-shaped plug rod (534) extending in the direction close to the connection between the rotating rod (531) and the connecting rod (532), and the arc-shaped plug rod (534) is provided with a plug hole (535) near its far end. When the support arm (533) is rotated to be distributed along the X-axis direction, the arc-shaped plug rod (534) can be completely inserted into the arc-shaped groove (511), and the pin hole (513) is communicated with the plug hole (535).

4. The construction engineering piling device according to claim 3, characterized in that: The self-unloading support structure (5) also includes a triangular rod (54), a first rotating arm (55), a second rotating arm (56) and a latch (57); the middle corner of the triangular rod (54) is rotatably connected to the middle part of the supporting crossbeam (51) through a rotating shaft; one end of the first rotating arm (55) is rotatably connected to the upper side of the outer wall of the base (1) through a rotating shaft, and the other end of the first rotating arm (55) is rotatably connected to one corner of the triangular rod (54) through a rotating shaft; one end of the second rotating arm (56) is rotatably connected to the other corner of the triangular rod (54) through a rotating shaft, and the other end of the second rotating arm (56) is rotatably connected to the other end of the rotating rod (531) through a rotating shaft; the rod end of the latch (57) can pass through the groove (512) and be inserted into the pin hole (513) and the plug hole (535) in sequence.

5. The construction engineering piling device according to claim 1, characterized in that: The support guide mechanism (3) comprises a support plate (31), a spring arm (32), a first connecting shaft (33), a guide slider (34) and a second connecting shaft (35); the support plate (31) is supported and fixed on the upper end of one side of the base (1), and a first shaft hole (311) is provided in the middle of the upper side of the support plate (31), a second shaft hole (312) and a third shaft hole (313) are symmetrically provided at both ends of the upper side of the support plate (31), and a guide groove (314) distributed along the height direction of the support plate (31) is provided on the lower side of the support plate (31). 14), a limit block (315) is fixedly provided at the bottom of the support plate (31), and a slide groove (3151) is opened on the front side of the limit block (315); the bottom end of the spring arm (32) is fixedly connected to the bottom wall of the guide groove (314) through a first connecting shaft (33); the guide slider (34) is slidably connected to the guide groove (314); one end of the second connecting shaft (35) is fixedly connected to the guide slider (34), and the middle part of the second connecting shaft (35) is sleeved on the top end of the spring arm (32).

6. The construction engineering piling device according to claim 5, characterized in that: The power mechanism (4) comprises a servo motor (41), a reducer (42), a driving gear (43), a first transmission gear (44), a second transmission gear (45), a first bevel gear (46), a second bevel gear (47) and a push rod (48); the servo motor (41) and the reducer (42) are respectively mounted on the upper rear end of the support plate (31), and the input end of the reducer (42) is connected to the output shaft of the servo motor (41); the axle of the driving gear (43) passes through the first shaft hole (311) and is coaxially connected to the output end of the reducer (42); the axle of the first transmission gear (44) is rotatably connected to the second shaft hole (312) through a bearing, and the first transmission gear (44) is meshedly connected to the driving gear (43); the axle of the second transmission gear (45) is rotatably connected to the third shaft hole (313) through a bearing, and the second transmission gear (45) is meshedly connected to the driving gear ( 43) meshingly connected; the axle of the first bevel gear (46) is coaxially connected to the axle of the first transmission gear (44); the axle of the second bevel gear (47) is coaxially connected to the axle of the second transmission gear (45); the push rod (48) includes a double-sided rack (481), a sliding rod (482) connected to the bottom of the double-sided rack (481), and a limit plate (483) connected between the double-sided rack (481) and the sliding rod (482). ), the middle part of the double-sided rack (481) is fixedly connected to the other end of the second connecting shaft (35), and the teeth on both sides of the double-sided rack (481) are respectively engaged with the first bevel gear (46) and the second bevel gear (47), the sliding rod (482) is sleeved on the sliding groove (3151) and causes the limiting plate (483) to be limited above the two side walls of the sliding groove (3151), and the pile hammer (2) is fixed at the bottom of the sliding rod (482).

7. The construction engineering piling device according to claim 1, characterized in that: The self-unloading support structure (5) is provided in three groups, and the three groups of the self-unloading support structure (5) are distributed in a triangular shape and are respectively installed at the bottom of the base (1).

Images