Noiseless self-balancing pile head breaking tool

Abstract

The utility model discloses a noiseless self-balancing pile head breaking tool. The pile head breaking tool comprises a traction piece, a pile casing piece, a top plate piece and a power lifting piece. The traction piece is arranged on the outer side of the circumference of the pile casing piece, and the top end of the traction piece is connected with the top plate piece; the top plate piece is located above the pile casing piece, the power lifting piece is arranged between the top plate piece and the top end of the pile casing piece, and the power lifting piece stretches and pulls the traction piece and the solidified concrete above the traction piece through the top plate piece. The utility model aims to solve the problems of long consumed time, high labor cost, easiness in damaging reinforcing steel bars, severe construction environment and the like in the pile head breaking process in the existing pile foundation construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building engineering especially relates to a noiseless self -balancing pile head breaks tool. BACKGROUND

[0002] In building engineering, bored pile is a common ground consolidation means, and the pile head part needs to be higher than the design elevation by a certain distance in the pouring process to ensure that the concrete quality strength of the pile head at the design elevation position meets the requirements, and the pile head part higher than the design elevation needs to be chiseled off in the subsequent process.

[0003] In the prior art, construction personnel usually use a pneumatic pick or an impact drill to perform pile head part breaking operation, and this operation has problems such as long time consumption, high labor cost, easy damage to embedded steel bars, loud noise, and poor construction environment, and therefore, it is particularly important to develop a tool capable of quickly and non-destructively breaking the pile head. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a noiseless self -balancing pile head breaks tool, and aims at solving the problems such as long time consumption, high labor cost, easy damage to steel bars, and poor construction environment existing in the pile head breaking process in the existing pile foundation construction, and innovatively uses a hydraulic jack to pull the L-shaped steel bar and the annular steel bar embedded in the preliminary pile body upwards, uses the adhesion between the steel bar and the concrete and the rigidity of the steel bar itself to make the surrounding concrete crack and finally separate, so that the quick, non-destructive, and environmentally friendly breaking operation of the preliminary pile body is realized.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A noiseless self -balancing pile head breaks tool, the pile head breaking tool comprises a pulling piece, a casing piece, a top plate piece, and a power lifting piece, the casing piece is a longitudinally arranged hollow tubular, the pulling piece is arranged on the outer side of the circumference of the casing piece, and the top end of the pulling piece is connected with the top plate piece, the top plate piece is located above the casing piece, the power lifting piece is arranged between the top plate piece and the top end of the casing piece, the bottom end of the power lifting piece is in contact with and realizes bottom support of the solidified concrete poured in the inside of the casing piece, and the top end of the power lifting piece is in contact with the top plate piece and performs stretching and pulling action on the pulling piece and the solidified concrete above the pulling piece through the top plate piece.

[0007] Further, the pulling member is formed by fixed connection of a plurality of L-shaped steel bars and a plurality of annular steel bars; the plurality of L-shaped steel bars are arranged at equal intervals along the circumferential direction of the casing member, the L-shaped steel bar is integrally formed by a vertical section and a horizontal section, the vertical section of the L-shaped steel bar is in contact with the side wall of the casing member and the length direction of the vertical section is consistent with the axial direction of the casing member, the top end of the vertical section of the plurality of L-shaped steel bars is detachably connected with the top plate member; the horizontal section of the L-shaped steel bar extends away from the axial direction of the casing member and the length direction of the horizontal section is consistent with the radial direction of the casing member.

[0008] Further, the plurality of annular steel bars are all arranged outside the vertical sections of the plurality of L-shaped steel bars, the diameters of the plurality of annular steel bars are sequentially increased and the plurality of annular steel bars are coaxially arranged, and the bottom ends of the plurality of annular steel bars are all welded on the upper ends of the horizontal sections of the L-shaped steel bars.

[0009] Further, the top plate member comprises a bearing plate, a fixing rod and a double-end screw sleeve; the bearing plate is in a circular plate shape, a plurality of fixing rods are welded on the bottom end of the bearing plate and the plurality of fixing rods are arranged in correspondence with the vertical sections of the plurality of L-shaped steel bars; the bottom end side wall of the fixing rod and the top end side wall of the vertical section of the L-shaped steel bar are both provided with threads and are threadedly connected with the two ends of the double-end screw sleeve.

[0010] Further, a reinforcing plate is welded between the vertical sections of adjacent L-shaped steel bars, the reinforcing plate is arranged in a circular arc shape and the bending radius of the inner wall of the reinforcing plate is matched with the bending radius of the outer side wall of the casing member, a guide plate is fixedly arranged on the side wall of the casing member, the guide plate is arranged in a bending shape along the circumferential direction of the casing member, the guide plate is located above the reinforcing plate, the bottom end face of the guide plate is in a slope structure gradually inclined upward from one end to the other end, and a wedge-shaped block is fixedly connected with the top end of the reinforcing plate, the top end face of the wedge-shaped block is matched with and in contact with the slope structure of the bottom end of the guide plate.

[0011] Further, the side wall of the casing member is provided with a reduced diameter structure to reduce the outer diameter of the bottom end of the casing member, the top end side wall of the casing member is in contact with the top end of the vertical section of the L-shaped steel bar, and the bottom end of the vertical section of the L-shaped steel bar is arranged in an inclined manner along the reduced diameter structure of the casing member and the bottom end of the inclined vertical section is in contact with the outer side wall of the casing member after the reduction in diameter.

[0012] Further, the power lifting member is a hydraulic jack.

[0013] Further, the bottom end of the casing member is lower than the bottom end of the pulling member.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that:

[0015] 1. The utility model discloses a pile head breaking tool which adopts a mechanical pulling principle instead of a traditional impact drill or blasting method, and realizes nondestructive or low-loss separation of a pile head part through a pre-embedded L-shaped reinforcing steel bar, an annular reinforcing steel bar reinforcing structure thereon and a jack system.

[0016] 2. The utility model discloses a pile head breaking tool which utilizes the interaction force between the reinforcing steel bar and the concrete to avoid direct impact and damage to the pre-embedded structural reinforcing steel bar in the pile body, protect the integrity and performance of the structural reinforcing steel bar and effectively improve the construction quality of the pile body.

[0017] 3. The utility model discloses a pile head breaking tool which sets an annular reinforcing steel bar on the horizontal section of the L-shaped reinforcing steel bar to increase the contact area between the pulling member and the concrete of the pile head part, significantly improve the bonding force between the reinforcing steel bar and the concrete and the overall pulling effect, ensure the stability and safety during the pulling process.

[0018] 4. The utility model discloses a pile head breaking tool which can be modularly designed and adjusted according to the specific engineering requirements, such as changing the size of the L-shaped reinforcing steel bar, adjusting the number and spacing of the annular reinforcing steel bar, optimizing the diameter and height of the circular casing member, etc. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 It is a structure schematic view of the pile head breaking tool in embodiment 1.

[0021] Figure 2 It is a front view structure diagram of the pile head breaking tool in embodiment 2.

[0022] Figure 3A sectional view of the pile head breaking tool in Example 3;

[0023] Figure 4 A construction process of the pile head breaking tool Figure 1 ;

[0024] Figure 5 A construction process of the pile head breaking tool Figure 2 ;

[0025] Figure 6 A construction process of the pile head breaking tool Figure 3 ;

[0026] Figure 7 A construction process of the pile head breaking tool Figure 4 ;

[0027] Figure 8 A construction process of the pile head breaking tool Figure 5 ;

[0028] Figure 9 A construction process of the pile head breaking tool Figure 6 . DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, any modification, equivalent replacement, improvement, etc. made by those skilled in the art without creative labor should be included in the protection scope of the present application.

[0030] Example 1, as shown in Figure 1 , the present embodiment discloses a noiseless self-balancing pile head breaking tool, which comprises a pulling piece, a casing piece 1, a top plate piece, a hydraulic jack 7;

[0031] The casing piece 1 is a longitudinally arranged hollow tubular structure. The casing piece 1 is made of PVC material and is pre-buried in concrete. The top end is slightly higher than the upper surface of the concrete, and the bottom end is lower than the upper surface of the pile body after breaking. The casing piece 1 is mainly used to limit the lateral deformation of the concrete in the casing piece and conduct the reaction force to the pile body, so as to ensure that the concrete in the casing piece remains structurally complete during the pulling process and provides a stable support platform for the jack.

[0032] The pulling member is formed by fixed connection of a plurality of L-shaped steel bars 2 and a plurality of ring-shaped steel bars 3; the plurality of L-shaped steel bars 2 are arranged at equal intervals along the circumferential direction of the casing member 1, the L-shaped steel bar 2 is integrally formed by a vertical section 21 and a horizontal section 22, the vertical section 21 of the L-shaped steel bar is in contact with the side wall of the casing member 1 and the length direction of the vertical section 21 is consistent with the axial direction of the casing member 1, the top end of the vertical section 21 of the plurality of L-shaped steel bars is detachably connected with the top plate member; the bottom end of the vertical section 21 of the L-shaped steel bar is connected with one end of the horizontal section 22, the other end of the horizontal section 22 extends away from the axis of the casing member 1 and the length direction of the horizontal section 22 is consistent with the radial direction of the casing member 1.

[0033] When the pouring operation is performed, the horizontal section and part of the vertical section of the L-shaped steel bar are pre-embedded in the concrete to form a firm combination with the concrete, the top end of the vertical section of the L-shaped steel bar is exposed above the surface of the concrete to facilitate mechanical connection with the top plate member.

[0034] The plurality of ring-shaped steel bars 3 are all sleeved outside the vertical sections 21 of the plurality of L-shaped steel bars, the plurality of ring-shaped steel bars 3 are arranged in a coaxial manner with diameters increasing in sequence, and the bottom ends of the plurality of ring-shaped steel bars 3 are all welded on the upper end of the horizontal section 22 of the L-shaped steel bar.

[0035] The ring-shaped steel bars can be set to three or more according to the diameter of the pile body and the ultimate tensile strength of the concrete to enhance the bonding force between the steel bars and the concrete, expand the damage area of the concrete, and improve the overall stability and efficiency in the pulling process.

[0036] The top plate member comprises a bearing plate 4, a fixed rod 5 and a double-headed screw sleeve 6; the bearing plate 4 is in the shape of a circular plate, a plurality of fixed rods 5 are welded on the bottom end of the bearing plate 4 and the plurality of fixed rods 5 are arranged in correspondence with the vertical sections 21 of the plurality of L-shaped steel bars; the bottom end side wall of the fixed rod 5 and the top end side wall of the vertical section 21 of the L-shaped steel bar are both provided with threads and are threadedly connected with the two ends of the double-headed screw sleeve 6.

[0037] The bearing plate 4 is located above the casing member 1, a hydraulic jack 7 is arranged between the bearing plate 4 and the top end of the casing member 1, the bottom end of the hydraulic jack 7 is in contact with the solidified concrete poured in the casing member 1 to realize bottom support, and the top end of the hydraulic jack 7 is in contact with the bearing plate 4 to perform stretching and pulling action on the pulling member and the solidified concrete above the pulling member through the fixed rod 5.

[0038] In this scheme, during pouring, the pulling member and the casing member are directly pre-embedded in the concrete, then the pulling member is pulled upward by using the hydraulic jack and the top plate member, under the power of the hydraulic jack, the pulling member and the concrete above the pulling member are broken and separated from the pile body, and finally the casing member and the concrete inside the casing member are cut off to realize the breaking operation of the pile head part.

[0039] Embodiment 2, as shown in Figure 2 The pile head breaking tool includes a pulling piece, a casing piece 1, a top plate piece, a hydraulic jack 7, and a top plate piece.

[0040] The casing piece 1 is a longitudinally arranged hollow tube, and a guide plate 101 is fixedly arranged on the side wall of the casing piece 1. The guide plate 101 is curved and arranged along the circumferential direction of the casing piece 1. The bottom end face of the guide plate 101 is a slope structure that gradually inclines upward from one end to the other end.

[0041] The pulling piece is composed of a plurality of L-shaped steel bars 2 and a plurality of annular steel bars 3. The plurality of L-shaped steel bars 2 are arranged at equal intervals along the circumferential direction of the casing piece 1. The L-shaped steel bar 2 is integrally formed by a vertical section 21 and a horizontal section 22. The vertical section 21 of the L-shaped steel bar is in contact with the side wall of the casing piece 1, and the length direction of the vertical section 21 is consistent with the axis direction of the casing piece 1. The top end of the vertical section 21 of the plurality of L-shaped steel bars is detachably connected with the top plate piece.

[0042] A reinforcing plate 23 is welded between the vertical sections 21 of adjacent L-shaped steel bars. The reinforcing plate 23 is arranged in a circular arc shape, and the bending radius of the inner wall of the reinforcing plate 23 is matched with the bending radius of the outer side wall of the casing piece 1. The reinforcing plate 23 is located below the guide plate 101. A wedge-shaped block 24 is fixedly connected to the top end of the reinforcing plate 23. The top end face of the wedge-shaped block 24 is matched with and in contact with the slope structure at the bottom end of the guide plate 101.

[0043] The bottom end of the vertical section 21 of the L-shaped steel bar is connected with one end of the horizontal section 22. The other end of the horizontal section 22 extends away from the axis of the casing piece 1, and the length direction of the horizontal section 22 is consistent with the radial direction of the casing piece 1.

[0044] The plurality of annular steel bars 3 are arranged outside the vertical sections 21 of the plurality of L-shaped steel bars. The diameters of the plurality of annular steel bars 3 increase in sequence and are arranged coaxially. The bottom ends of the plurality of annular steel bars 3 are welded to the upper end of the horizontal section 22 of the L-shaped steel bar.

[0045] The top plate piece includes a bearing plate 4, a fixed rod 5, and a double-headed screw sleeve 6. The bearing plate 4 is a circular plate. A plurality of fixed rods 5 are welded to the bottom end of the bearing plate 4, and the plurality of fixed rods 5 are arranged correspondingly to the vertical sections 21 of the plurality of L-shaped steel bars. The bottom end side wall of the fixed rod 5 and the top end side wall of the vertical section 21 of the L-shaped steel bar are both provided with threads and are threadedly connected with both ends of the double-headed screw sleeve 6.

[0046] The force plate 4 is located above the casing 1, the hydraulic jack 7 is arranged between the force plate 4 and the top end of the casing 1, the bottom end of the hydraulic jack 7 is in contact with the solidified concrete poured in the casing 1 and realizes bottom support, and the top end of the hydraulic jack 7 is in contact with the force plate 4 and stretches and pulls the pulling member and the solidified concrete above the pulling member through the fixed rod 5.

[0047] In the scheme, when the hydraulic jack lifts the pulling member and the concrete above the pulling member, the wedge block, the pulling member and the concrete all rotate along the bottom slope of the guide plate under the cooperation of the wedge block and the slope structure of the guide plate, so that the pulling member generates an upward lifting force on the concrete while accompanying a rotating torque, the concrete above the pulling member is more easily broken away from the pile body below the pulling member, and the separation effect of the pile head part and the pile body part is improved.

[0048] Embodiment 3, as shown in Figure 3 The pile head breaking tool disclosed by the embodiment comprises a pulling member, a casing 1, a top plate, a hydraulic jack 7, and a force plate 4.

[0049] The casing 1 is a longitudinally arranged hollow tubular structure, and a reduced diameter structure 102 is arranged on the side wall of the casing 1 to reduce the outer diameter of the bottom end of the casing 1.

[0050] The pulling member is fixedly connected by a plurality of L-shaped steel bars 2 and a plurality of annular steel bars 3.

[0051] The top end of the vertical section 21 of the L-shaped steel bar is detachably connected to the top plate, and the bottom end of the vertical section 21 of the L-shaped steel bar is connected to one end of the horizontal section 22, and the other end of the horizontal section 22 extends away from the axis of the casing 1 and the length direction of the horizontal section 22 is consistent with the radial direction of the casing 1.

[0052] The plurality of annular steel bars 3 are arranged outside the vertical section 21 of the L-shaped steel bar, the diameters of the plurality of annular steel bars 3 increase in sequence and are coaxially arranged, and the bottom ends of the plurality of annular steel bars 3 are welded to the upper end of the horizontal section 22 of the L-shaped steel bar.

[0053] The top plate piece comprises a force bearing plate 4, a fixed rod 5 and a double-end screw sleeve 6; the force bearing plate 4 is in a circular plate shape, a plurality of fixed rods 5 are welded at the bottom end of the force bearing plate 4 and correspondingly arranged with the vertical segments 21 of the plurality of L-shaped steel bars; the bottom end side wall of the fixed rod 5 and the top end side wall of the vertical segment 21 of the L-shaped steel bar are provided with threads and are threadedly connected with the two ends of the double-end screw sleeve 6.

[0054] The force bearing plate 4 is located above the casing piece 1, the hydraulic jack 7 is arranged between the force bearing plate 4 and the top end of the casing piece 1, the bottom end of the hydraulic jack 7 is in contact with the solidified concrete poured in the casing piece 1 and realizes bottom support, and the top end of the hydraulic jack 7 is in contact with the force bearing plate 4 and realizes the stretching and pulling action of the pulling piece and the solidified concrete above the pulling piece through the fixed rod 5.

[0055] In the scheme, when the hydraulic jack pulls up the pulling piece and the concrete above the pulling piece, the bottom end of the vertical segment of the L-shaped steel bar will be hindered by the diameter-reducing structure of the casing piece when moving upward and will expand in the direction away from the axis of the casing piece under the hindering action, the expanding action will cause extrusion force on the concrete above the horizontal segment of the L-shaped steel bar and the annular steel bar, so that the concrete of the pile head part is extruded and broken by the expanding force during the upward pulling process, which makes the pile head part more easily broken and separated from the pile body below the pulling piece, and improves the separation effect of the pile head part and the pile body part.

[0056] Moreover, the inclined structure of the L-shaped steel bar will support the casing piece after being in contact with the diameter-reducing structure of the casing piece, which improves the placement stability of the casing piece between the plurality of L-shaped steel bars.

[0057] As shown in Figures 4 to 9 The utility model discloses also the use method of above-mentioned noiseless self -balancing pile head break tool, with the break tool in example 1 as an example to carry out detailed description, it mainly includes following steps:

[0058] S1, according to design drawing and engineering requirement, determine the specific specification and quantity of L-shaped steel bar assembly, annular steel bar reinforcing structure, casing piece 1 and jack system, weld L-shaped steel bar 2 with annular steel bar 3;

[0059] S2, before the pile head concrete pouring, carry out the pre-buried installation work of L-shaped steel bar 2, annular steel bar 3 and casing piece 1, place L-shaped steel bar 2 accurately at the pile head position according to the design requirement, and make annular steel bar 3 and the reserved steel bar 8 in the pile body mold bind connection (as Figure 4As shown in FIG. 6, the PVC pipe is sleeved with the reserved steel bars 8, and the end is sealed with adhesive tape to isolate the reserved steel bars from the concrete, so as to facilitate the separation of the concrete of the pile head part 901, and ensure that the top end of the vertical section 21 of the L-shaped steel bar is exposed from the upper surface of the concrete; then the casing member 1 is installed to ensure that the position is accurate and fixed firmly, and is slightly higher than the upper surface of the concrete, and then the foam is wound outside the casing member 1, so that the adhesion of the concrete outside to the foam is reduced.

[0060] S3, after the pre-embedded installation is completed, the pouring pipe is inserted into the casing member 1 to pour the concrete slurry, and attention should be paid to vibration and compaction during the pouring process to ensure that the concrete and the embedded member are well combined until the concrete slurry reaches the preset pouring height.

[0061] S4, after the concrete reaches the design strength, the preliminary pile body 9 is formed (as shown in FIG. 7), and a cutting machine is used to perform circular cutting operation around the preliminary pile body 9 at the horizontal plane where the horizontal section 22 of the L-shaped steel bar is located (as shown in FIG. 8), and the cutting depth needs to be accurately controlled to ensure that the embedded horizontal section 22 of the L-shaped steel bar is exposed, and at the same time, the annular steel bar 2 and the casing member 1 are not damaged. Figure 5 Figure 6

[0062] S5, the hydraulic jack 7 is installed into the casing member 1 and contacts the upper surface of the concrete in the casing member 1, the bearing plate 4 is covered on the hydraulic jack 7, the bottom of the bearing plate 4 contacts the top of the hydraulic jack 7, the fixed rod 5 is fastened and connected with the top end of the vertical section 21 of the L-shaped steel bar through the double-end screw sleeve 6 (as shown in FIG. 9), and at the same time, whether the functions of the hydraulic jack 7 are normal is checked. Figure 7

[0063] S6, the hydraulic jack 7 is started, and the upward pulling force is gradually applied to the L-shaped steel bar 2, the change of the pile head part during the pulling process is closely observed, such as the generation and expansion of cracks, and the pulling force is adjusted according to the actual situation, at the same time, the casing member 1 needs to be kept stable during the pulling process to limit the lateral deformation of the concrete in the casing member 1, and finally the pile head part 901 above the pulling member is separated from the pile body part 902 below the pulling member from the ring cutting position 903 (as shown in FIG. 10 and FIG. 11). Figure 7 , Figure 8

[0064] S7, after the separated pile head part 901 is removed, the casing member 1 and the solidified concrete in the casing member 1 are cut off at the top end of the pile body part 902 using a cutting machine (as shown in FIG. 12), and then the pile body part 902 is further processed (such as cutting, polishing, etc.) to meet the subsequent construction requirements, and finally the finished pile body 10 is obtained. Figure 9

[0065] The utility model has the following beneficial effects:

[0066] ​​​​​​1、The utility model discloses a pile head breaking tool which adopts a mechanical pulling principle instead of a traditional impact drill or blasting method, and realizes nondestructive or low-loss separation of a pile head part through a pre-embedded L-shaped reinforcing steel bar, a reinforcing structure of annular reinforcing steel bars thereon and a jack system.

[0067] 2、The utility model discloses a pile head breaking tool which adopts a mechanical pulling principle instead of a traditional impact drill or blasting method, and realizes nondestructive or low-loss separation of a pile head part through a pre-embedded L-shaped reinforcing steel bar, a reinforcing structure of annular reinforcing steel bars thereon and a jack system.

[0068] 3、The utility model discloses a pile head breaking tool which adopts a mechanical pulling principle instead of a traditional impact drill or blasting method, and realizes nondestructive or low-loss separation of a pile head part through a pre-embedded L-shaped reinforcing steel bar, a reinforcing structure of annular reinforcing steel bars thereon and a jack system.

[0069] 4、The utility model discloses a pile head breaking tool which adopts a mechanical pulling principle instead of a traditional impact drill or blasting method, and realizes nondestructive or low-loss separation of a pile head part through a pre-embedded L-shaped reinforcing steel bar, a reinforcing structure of annular reinforcing steel bars thereon and a jack system.

Claims

1. A noiseless self-balancing pile head breaking tool, characterized in that: The pile head breaking tool comprises a pulling member, a casing member, a top plate member and a power lifting member; the casing member is a longitudinally arranged hollow tubular structure; the pulling member is arranged outside the circumference of the casing member, and the top end of the pulling member is connected with the top plate member; the top plate member is located above the casing member, and the power lifting member is arranged between the top plate member and the top end of the casing member; the bottom end of the power lifting member is in contact with the solidified concrete poured in the casing member and realizes bottom support; the top end of the power lifting member is in contact with the top plate member and stretches and pulls the pulling member and the solidified concrete above the pulling member through the top plate member.

2. The noiseless self-balancing pile head breaking tool according to claim 1, characterized in that: The pulling member is composed of a plurality of L-shaped steel bars and a plurality of annular steel bars; the plurality of L-shaped steel bars are arranged at equal intervals along the circumferential direction of the casing member; the L-shaped steel bar is integrally formed by a vertical section and a horizontal section; the vertical section of the L-shaped steel bar is in contact with the side wall of the casing member, and the length direction of the vertical section is consistent with the axial direction of the casing member; the top end of the vertical section of the L-shaped steel bar is detachably connected with the top plate member; the horizontal section of the L-shaped steel bar extends away from the axis of the casing member, and the length direction of the horizontal section is consistent with the radial direction of the casing member.

3. A noiseless self-balancing pile head breaking tool according to claim 2, characterized in that: The plurality of annular steel bars are arranged outside the vertical section of the L-shaped steel bar; the diameters of the plurality of annular steel bars are sequentially increased and coaxially arranged; the bottom end of the annular steel bar is welded to the upper end of the horizontal section of the L-shaped steel bar.

4. The noiseless self-balancing pile head breaking tool according to claim 2, characterized in that: The top plate member comprises a bearing plate, a fixing rod and a double-end screw sleeve; the bearing plate is a circular plate; the bottom end of the bearing plate is welded with a plurality of fixing rods, and the plurality of fixing rods are arranged corresponding to the vertical sections of the plurality of L-shaped steel bars; the bottom end side wall of the fixing rod and the top end side wall of the vertical section of the L-shaped steel bar are provided with threads and are threadedly connected with the two ends of the double-end screw sleeve.

5. The noiseless self-balancing pile head breaking tool according to claim 2, characterized in that: A reinforcing plate is welded between the vertical sections of adjacent L-shaped steel bars; the reinforcing plate is arranged in a circular arc shape, and the bending radius of the inner wall of the reinforcing plate is matched with the bending radius of the outer wall of the casing member; a guide plate is fixedly arranged on the side wall of the casing member; the guide plate is arranged in a bending shape along the circumferential direction of the casing member; the guide plate is located above the reinforcing plate; the bottom end face of the guide plate is inclined from one end to the other end; a wedge-shaped block is fixedly connected to the top end of the reinforcing plate; the top end face of the wedge-shaped block is matched with the inclined surface structure of the bottom end of the guide plate and is in contact with each other.

6. The noiseless self-balancing pile head breaking tool according to claim 2, characterized in that: A reduced diameter structure is arranged on the side wall of the casing member to reduce the outer diameter of the bottom end of the casing member; the top end of the vertical section of the L-shaped steel bar is in contact with the top end side wall of the casing member; the bottom end of the vertical section of the L-shaped steel bar is arranged obliquely along the reduced diameter structure of the casing member and is in contact with the outer wall of the casing member after the reduction in diameter.

7. The noiseless self-balancing pile head breaking tool according to claim 1, characterized in that: The power lifting member is a hydraulic jack.

8. The noiseless self-balancing pile head breaking tool according to claim 1, characterized in that: The bottom end height of the casing member is lower than the bottom end height of the pulling member.

Images