A precast pile implantation device and method of use thereof

Abstract

The present application relates to the technical field of building construction, and particularly relates to a prefabricated pile implanting device and a use method thereof. The implanting device is installed on an excavator and comprises: a vibrating hammer fixed to a mechanical arm of the excavator, a bottom of the vibrating hammer being used for connecting a prefabricated pile to be implanted; a connecting frame horizontally fixed to one side of the vibrating hammer; an electronic level fixed to the connecting frame; a first damping device and a second damping device installed on the connecting frame, the second damping device being movably arranged above and below the first damping device; and a range finder arranged at a bottom of the second damping device, a transmitting end of the range finder being vertically downward. Beneficial effects: the range finder is arranged on the vibrating hammer, so that the range finder can measure the distance between the vibrating hammer and the ground, and the depth of the prefabricated pile implanted into the ground can be accurately controlled.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a precast pile implantation device and its usage method. Background Technology

[0002] In building construction, precast piles are often embedded in the soil to transfer the building's load to deeper, firm soil or rock layers. This improves the foundation's bearing capacity, ensures the building's stability, and enables it to withstand greater weight, including the building's own weight and various loads generated during use, such as the weight of personnel, equipment, and furniture. By driving piles into suitable soil layers, building settlement can be effectively reduced. Especially for soft soil foundations, precast piles can distribute the load to deeper soil layers, preventing excessive compression of the foundation soil and keeping building settlement within acceptable limits, thus ensuring the building's normal use and structural safety.

[0003] Currently, there are many methods for embedding precast piles in the soil, such as hammer driving, vibratory driving, and static pressure driving. Among these, hammer driving utilizes the impact energy of a pile hammer to drive the precast pile into the soil. Pile hammers can be drop hammers, steam hammers, diesel pile hammers, or vibratory hammers. After the pile driver is in place, the pile hammer and pile cap are lifted, the pile is hoisted and placed into the guide rod, vertically aligned with the pile position, and slowly lowered into the soil. Then, the pile cap and pile hammer are fixed, ensuring that the pile, pile cap, and pile hammer are on the same vertical line. Initially, a small drop distance is used for light driving. Once the pile has penetrated to a certain depth and stabilized, the specified drop distance is then used, following the principle of heavy hammer and low impact, until the pile reaches the designed depth.

[0004] In actual construction, especially in areas with narrow construction sites and limited space where large pile driving equipment is difficult to operate, a vibratory hammer is usually installed at the end of the excavator. By utilizing the excavator's mobility and the high-frequency vibration of the vibratory hammer, the soft soil structure around the pile body changes due to vibration, reducing its strength and liquefying the soil around the pile body. This reduces the frictional resistance between the pile side and the soil, making it easier to drive the precast pile into the soil.

[0005] Whether using excavators and vibratory hammers together, or other piling equipment, there are some problems during the construction process. For example, according to the "Code for Design of Building Foundations" and "Code for Technical Specification of Building Pile Foundations", when determining the depth of the pile bottom into the bearing layer, the effects of special soils, karst, and seismic liquefaction should be considered. That is, when burying precast piles in different geological areas, the precast piles need to be inserted at different depths. However, when using the above-mentioned equipment to bury precast piles, the length of the precast pile protruding from the ground is mostly observed with the naked eye to infer the burial depth, which is not very accurate and not conducive to accurately completing the burial of precast piles. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects of the prior art and provide a precast pile implantation device and its usage method, which solves the problem that it is difficult to ensure that the lengths of multiple precast piles exposed above the ground are equal during the existing precast pile implantation process, thus making it difficult to accurately complete the precast pile embedment process.

[0007] The technical solution to achieve the above objectives is:

[0008] This invention provides a precast pile implantation device, installed on an excavator. The implantation device includes: a vibratory hammer fixed to the excavator's robotic arm, the bottom of which is used to connect to the precast pile to be implanted; a connecting frame horizontally fixed to one side of the vibratory hammer; an electronic level fixed to the connecting frame; a first shock absorber and a second shock absorber installed on the connecting frame, the second shock absorber and the first shock absorber being movably movable up and down; and a rangefinder located at the bottom of the second shock absorber, the transmitter of which is vertically downward.

[0009] Furthermore, the connecting frame includes: a clamping plate fixed to the vibratory hammer; a frame fixed to the clamping plate; and a first ring plate, wherein the frame is provided with a support tube, and the first ring plate is provided with a rod inserted into the support tube, the rod being fixed to the support tube by bolts.

[0010] Furthermore, the first damping device includes: a second ring plate disposed above the first ring plate; and a plurality of damping springs spaced apart, the upper ends of which are hinged to the second ring plate and the lower ends of which are hinged to the first ring plate.

[0011] Furthermore, the second shock absorber includes: a top plate and a bottom plate disposed opposite to each other, respectively disposed at the top and bottom of the first shock absorber; a connecting rod that passes vertically through the first shock absorber and connects between the top plate and the bottom plate; and two second magnets that are respectively embedded on the opposite side of the top plate and the bottom plate. The first shock absorber is provided with a first magnet at both its upper and lower ends, and the second magnets repel each other from the corresponding first magnets.

[0012] Furthermore, it also includes two limiting devices, respectively located on one side of the top plate and the bottom plate opposite each other, including a ring-shaped third magnet. The third magnet is located inside the corresponding first magnet, and the third magnet and the first magnet repel each other, so that the second shock absorber is centrally located on the first shock absorber.

[0013] Furthermore, the limiting device also includes: an arc-shaped first splicing plate and a second splicing plate, spliced ​​together to form a ring, with the third magnet embedded on the inner side of the ring formed by splicing; a support frame, disposed at the bottom of the second splicing plate, with multiple connecting holes opened on the side of the first splicing plate, the support frame being inserted into the connecting holes when the first splicing plate and the second splicing plate are spliced; and a sleeve, fixed on the support frame and sleeved on the connecting rod.

[0014] Furthermore, it also includes a connecting device connected to the bottom of the second shock absorber, with the rangefinder located at the bottom of the connecting device.

[0015] Furthermore, the connecting device includes a hemispherical upper section and a lower section, which are joined together to form a spherical space inside. The upper section is fixed to the bottom of the second shock absorber. The top of the rangefinder is provided with a spherical connecting key, which is movably disposed within the spherical space.

[0016] The present invention also provides a method for using a precast pile implantation device, comprising the following steps: providing the precast pile implantation device as described above; installing a vibratory hammer on the mechanical arm of an excavator; installing the precast pile to be implanted on the bottom of the vibratory hammer; adjusting the verticality of the precast pile by observing an electronic level and by using the mechanical arm of the excavator; driving the precast pile into the construction position by controlling the mechanical arm of the excavator; and stopping the implantation of the precast pile after the distance measured by the rangefinder reaches the set distance.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By installing a distance measuring device on the vibratory hammer, the distance measuring device can measure the distance between the vibratory hammer and the ground, thereby enabling precise control of the depth at which the precast pile is driven into the ground.

[0019] By installing a connecting frame on the vibratory hammer and an electronic level on the connecting frame, the level of the connecting frame is ensured, thereby ensuring that the precast pile can be vertically downward.

[0020] By setting up the first and second damping devices, the rangefinder can filter the vibration generated by the vibratory hammer, thereby avoiding the rangefinder's measurement error caused by shaking, which would affect the accuracy of the precast pile implantation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the usage state of the precast pile implantation device of the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of the precast pile implantation device of the present invention.

[0023] Figure 3 This is a schematic diagram of the first and second shock-absorbing devices of the precast pile implantation device of the present invention.

[0024] Figure 4 This is a schematic diagram of the connecting frame structure of the precast pile implantation device of the present invention.

[0025] Figure 5 This is a schematic diagram of the first shock-absorbing device in the precast pile implantation device of the present invention.

[0026] Figure 6 This is a schematic diagram of the second shock-absorbing device in the precast pile implantation device of the present invention.

[0027] Figure 7 This is a schematic diagram of the limiting device structure of the precast pile implantation device of the present invention.

[0028] Figure 8 This is a schematic diagram of the distance measuring instrument and connecting device of the precast pile implantation device of the present invention.

[0029] Figure 9 This is a schematic diagram of the connecting device structure of the precast pile implantation device of the present invention.

[0030] Figure 10 This is a schematic diagram of the top ball structure of the precast pile implantation device of the present invention.

[0031] Legend: 1. Excavator; 2. Vibratory hammer; 3. Rangefinder; 31. Connecting key; 32. Connecting pipe; 33. Side plate; 34. Extrusion plate; 4. Level; 5. Connecting frame; 51. Frame; 52. Support pipe; 53. Insert rod; 54. First ring plate; 55. Clamping plate; 6. First shock absorber; 61. Second ring plate; 62. Shock absorber spring; 63. First magnet; 7. Second shock absorber; 71. Top plate; 72. Connecting rod; 73. Bottom plate; 74. Second magnet; 8. Connecting device; 81. Upper rail; 82. Lower rail; 83. Internal threaded column; 9. Limiting device; 91. Third magnet; 92. First splicing plate; 93. Connecting hole; 94. Second splicing plate; 95. Sleeve; 96. Support frame. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] See Figure 1 This invention provides a precast pile implantation device and its method of use, solving the problem that in existing precast pile implantation processes, it is difficult to ensure that the lengths of multiple precast piles protruding above the ground are equal, which is not conducive to accurately completing the precast pile embedment process. By setting a distance measuring instrument on the vibratory hammer, the distance measuring instrument can measure the distance between the vibratory hammer and the ground, thereby enabling precise control of the depth of precast pile implantation into the ground.

[0034] By installing a connecting frame on the vibratory hammer and an electronic level on the connecting frame, the level of the connecting frame is ensured, thereby ensuring that the precast pile can be vertically downward.

[0035] By setting up the first and second damping devices, the rangefinder can filter the vibration generated by the vibratory hammer, thereby avoiding the rangefinder's measurement error caused by shaking, which would affect the accuracy of the precast pile implantation.

[0036] The following description, in conjunction with the accompanying drawings, illustrates a precast pile implantation device and its usage method according to the present invention.

[0037] See Figure 1 This diagram illustrates the usage state of the precast pile implantation device of the present invention. (See attached diagram.) Figure 2 This shows a schematic diagram of the overall structure of the precast pile implantation device of the present invention. (See attached diagram.) Figure 3 The diagram below shows a schematic of the vibration damping device of the precast pile implantation device of the present invention. Figures 1 to 3 This invention describes a precast pile implantation device and its usage method.

[0038] like Figures 1 to 3 As shown, a precast pile implantation device of the present invention is installed on an excavator 1. The device comprises: a vibratory hammer 2, fixed to the mechanical arm of the excavator 1, the bottom of which is used to connect the precast pile to be implanted; a connecting frame 5 horizontally fixed to one side of the vibratory hammer 2; an electronic level 4 fixed to the connecting frame 5; a first shock absorber 6 and a second shock absorber 7 installed on the connecting frame 5, the second shock absorber 7 and the first shock absorber 6 being movable up and down; and a rangefinder 3 located at the bottom of the second shock absorber 7, the transmitting end of the rangefinder 3 pointing vertically downward.

[0039] like Figure 4 As shown, in one specific embodiment, the connecting frame 5 includes: a clamping plate 55 fixed to the vibrating hammer 2; a frame 51 fixed to the clamping plate 55; and a first ring plate 54. The frame 51 is provided with a support tube 52, and the first ring plate 54 is provided with a rod 53 inserted into the support tube 52. The rod 53 and the support tube 52 are fixed by bolts.

[0040] like Figure 5 As shown, in one specific embodiment, the first damping device 6 includes: a second ring plate 61 disposed above the first ring plate 54; and a plurality of damping springs 62 spaced apart, the upper ends of which are hinged to the second ring plate 61 and the lower ends of which are hinged to the first ring plate 54. By providing a plurality of damping springs 62, the rangefinder 3 can be buffered in the vertical direction, thereby ensuring the accuracy of the measurement results.

[0041] Specifically, hinge seats are provided at intervals on the top of the first ring plate 54 and the bottom of the second ring plate 61, and the two ends of the telescopic spring 62 are provided with connecting parts, which are hinged to the corresponding hinge seats.

[0042] like Figure 6 As shown, in one specific embodiment, the second shock absorber 7 includes: a top plate 71 and a bottom plate 73 disposed opposite to each other, respectively located at the top and bottom of the first shock absorber 6; a connecting rod 72, vertically passing through the first shock absorber 6 and connecting between the top plate 71 and the bottom plate 73; and two second magnets 74, respectively embedded on opposite sides of the top plate 71 and the bottom plate 73. The first shock absorber 6 has first magnets 63 at both its upper and lower ends, and the second magnets 74 repel the corresponding first magnets 63. By setting mutually repelling magnets, a rigid connection between the second shock absorber 7 and the first shock absorber 6 is avoided, and the second shock absorber 7 is further buffered, thereby increasing the accuracy of the rangefinder 3.

[0043] Specifically, the top plate 71 is located at the top of the second ring plate 62, and the bottom plate 73 is located at the bottom of the first ring plate 54. The first ring plate 54, the second ring plate 64, the top plate 71 and the bottom plate 73 have the same dimensions.

[0044] like Figure 7 As shown, in one specific embodiment, it further includes two limiting devices 9, respectively disposed on the opposite side of the top plate 71 and the bottom plate 73. Each device includes a ring-shaped third magnet 91, located inside the corresponding first magnet 63, and the third magnet 91 and the first magnet 63 repel each other, so that the second damping device 7 is centrally disposed on the first damping device 6. That is, by setting the limiting devices 9, the second damping device 7 and the first damping device 6 are placed on the same axis, ensuring that the first magnet 63 and the second magnet 74 are on the same axis, thereby ensuring that the repulsive force is in the vertical direction.

[0045] In one specific embodiment, the limiting device 9 further includes: an arc-shaped first splicing plate 92 and a second splicing plate 94, spliced ​​together to form a ring, with the third magnet 91 embedded in the inner side of the ring; a support frame 96 located at the bottom of the second splicing plate 94, with multiple connecting holes 93 on the side of the first splicing plate 92, the support frame 96 inserted into the connecting holes 93 when the first splicing plate 92 and the second splicing plate 94 are spliced; and a sleeve 95 fixed to the support frame 96 and sleeved on the connecting rod 72. The two ends of the first splicing plate 92 and the second splicing plate 94 have extension sections, which face each other during splicing and are fixed by bolts. The sleeve 95 is fixedly connected to the connecting rod 72 to prevent the limiting device 9 from sliding on the connecting rod 72, thus preventing the third magnet 91 from detaching from the inner side of the first magnet 63, thereby causing the limiting device 9 to fail.

[0046] like Figure 9 As shown, in one specific embodiment, it further includes a connecting device 8 connected to the bottom of the second shock absorber 7, and the rangefinder 3 is disposed at the bottom of the connecting device 8.

[0047] In one specific embodiment, the connecting device 8 includes a hemispherical upper frame 81 and a lower frame 82, which are joined together to form a spherical space inside. The upper frame 81 is fixed to the bottom of the second shock-absorbing device 7. The top of the rangefinder 3 is provided with a spherical connecting key 31, which is movably disposed within the spherical space. Flanges are provided on the circumferences of the upper frame 81 and the lower frame 82, and the flanges are opposite each other and fixed by bolts.

[0048] In one specific embodiment, the lower end of the connecting rod 72 passes through the base plate 73 and has an external thread on its outer surface. The connecting device 8 also includes an internally threaded post 83 located at the top of the upper rail body 81. The lower end of the connecting rod 72 is threaded into the internally threaded post 83, thereby connecting the connecting device 8 to the second shock-absorbing device 7.

[0049] like Figure 10 As shown, in one specific embodiment, it further includes two extrusion plates 34, respectively disposed on both sides of the rangefinder 3 and extruding the rangefinder 3. A connecting pipe 32 is provided between the two extrusion plates 34, and the connecting pipe 32 is fixed to the upper half of the corresponding extrusion plate 34. The connecting pipe 32 is provided with two spaced-apart side plates 33. When the two extrusion plates 34 are installed, the corresponding extrusion plate 34 is snapped between the two side plates 33 and fixed by bolts. A connecting rod is provided at the bottom of the connecting key 31. The connecting rod is inserted into the connecting pipe 32 and fixed by bolts.

[0050] The present invention also provides a method for using a precast pile implantation device, comprising the following steps: providing the precast pile implantation device as described above; installing a vibratory hammer 2 on the mechanical arm of an excavator 1; installing the precast pile to be implanted on the bottom of the vibratory hammer 2; adjusting the verticality of the precast pile by observing the electronic level 4 and by using the mechanical arm of the excavator 1; driving the precast pile into the construction position by controlling the mechanical arm of the excavator 1; and stopping the implantation of the precast pile after the distance measured by the distance measuring instrument 3 reaches the set distance.

[0051] The following is a detailed description of the usage process and working principle of the precast pile implantation device of the present invention.

[0052] The vibratory hammer 2 is mounted on the mechanical arm of the excavator 1, and the precast pile to be implanted is placed at the bottom of the vibratory hammer 2. The vibratory hammer 2 is leveled by observing the electronic level 4. Then, the mechanical arm of the excavator 1 is controlled to move the precast pile to the construction position and gradually move it downwards. The vibration of the vibratory hammer 2 makes it easier to implant the precast pile into the ground.

[0053] During vibration, the vibratory hammer 2 absorbs vertical vibration through the damping spring 62. Since the upper and lower ends of the damping spring 62 are respectively hinged to the second ring plate 61 and the first ring plate 54, it can absorb horizontal vibration.

[0054] In addition, since the second damping device 7 and the first damping device 6 are indirectly connected under the repulsive action of the magnet, they can further absorb vibrations in the vertical direction.

[0055] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A precast pile implantation device, installed on an excavator (1), characterized in that: The implantable device includes: Vibratory hammer (2) is fixed to the mechanical arm of the excavator (1), and the bottom of the vibratory hammer (2) is used to connect the precast pile to be implanted; A connecting frame (5) is horizontally fixed to one side of the vibratory hammer (2); An electronic level (4) is fixed on the connecting frame (5); The first damping device (6) and the second damping device (7) are mounted on the connecting frame (5), and the second damping device (7) and the first damping device (6) are arranged to move up and down; and The rangefinder (3) is located at the bottom of the second shock absorber (7), with the transmitting end of the rangefinder (3) pointing vertically downward. The connecting frame (5) includes: The clamp (55) is fixed on the vibratory hammer (2); The frame (51) fixed to the clamp (55); and The first ring plate (54) is provided with a support tube (52) on the frame (51), and the first ring plate (54) is provided with a rod (53) inserted into the support tube (52), and the rod (53) is fixed to the support tube (52) by bolts; The first damping device (6) includes: A second ring plate (61) is disposed above the first ring plate (54); Multiple spaced damping springs (62) are hinged at the upper end to the second ring plate (61) and at the lower end to the first ring plate (54). The second damping device (7) includes: The top plate (71) and bottom plate (73) are respectively located at the top and bottom of the first shock absorber (6); The connecting rod (72) passes vertically through the first shock absorber (6) and connects between the top plate (71) and the bottom plate (73); Two second magnets (74) are respectively embedded on the opposite side of the top plate (71) and the bottom plate (73). The first shock absorber (6) is provided with first magnets (63) at both the upper and lower ends. The second magnets (74) and the corresponding first magnets (63) repel each other.

2. The precast pile implantation device according to claim 1, characterized in that: It also includes two limiting devices (9), which are respectively set on the opposite side of the top plate (71) and the bottom plate (73). The third magnet (91) is located inside the corresponding first magnet (63), and the third magnet (91) and the first magnet (63) repel each other, so that the second shock absorber (7) is centrally set on the first shock absorber (6).

3. The precast pile implantation device according to claim 2, characterized in that: The limiting device (9) also includes: The first splicing plate (92) and the second splicing plate (94) are arc-shaped and spliced ​​together to form a ring. The third magnet (91) is embedded in the inner side of the ring formed by splicing. A support frame (96) is disposed at the bottom of the second splicing plate (94). The side of the first splicing plate (92) has multiple connecting holes (93). When the first splicing plate (92) and the second splicing plate (94) are spliced, the support frame (96) is inserted into the connecting holes (93). The sleeve (95) is fixed on the support frame (96) and sleeved on the connecting rod (72).

4. The precast pile implantation device according to claim 1, characterized in that: It also includes a connecting device (8) connected to the bottom of the second shock absorber (7), and the rangefinder (3) is located at the bottom of the connecting device (8).

5. A precast pile implantation device according to claim 4, characterized in that: The connecting device (8) includes a hemispherical upper frame (81) and a lower frame (82), which are joined together to form a spherical space inside. The upper frame (81) is fixed to the bottom of the second shock absorber (7). The top of the rangefinder (3) is provided with a spherical connecting key (31), which is movably located within the spherical space.

6. A method of using a precast pile implantation device, characterized in that: Includes the following steps: Provide a precast pile implantation device as described in claim 1; Install the vibratory hammer (2) on the mechanical arm of the excavator (1); The precast pile to be implanted is installed at the bottom of the vibratory hammer (2); The verticality of the precast piles is adjusted by observing the electronic level (4) and by the mechanical arm of the excavator (1); The precast pile is driven into the construction position by controlling the mechanical arm of the excavator (1). When the distance between the precast pile and the ground is measured by the distance measuring instrument (3) and the distance reaches the set distance, the implantation of the precast pile is stopped.

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