Pile driver for civil engineering

Abstract

The invention relates to the field of pile drivers, in particular to a civil engineering pile driver which comprises a pile hammer, a pile cap and a lubricating oil spraying assembly, the pile hammer and the pile cap are jointly connected to a pile frame in a sliding mode, the pile hammer corresponds to the pile cap, an air cylinder body is fixedly connected into the pile hammer, and a first plunger corresponding to the air cylinder body is fixedly connected to the upper surface of the pile cap; the pile hammer carries the air cylinder body to move downwards to drive the first abutting rod to move synchronously. When a first abutting rod abuts against a first L-shaped rotating rod and pushes the first L-shaped rotating rod to rotate, the other end of the first abutting rod drives a second plunger to slide in a first oil pump, the first oil pump generates pressure to extrude lubricating oil, the lubricating oil is sprayed to the upper end of the first plunger through a first nozzle, meanwhile, the first plunger compresses air in an air cylinder body to be heated, diesel oil sprayed out of the second nozzle burns and explodes in a high-temperature cylinder, and strong impact force is generated; the lubricating oil reduces friction between the plunger I and the cylinder body, reduces abrasion, prolongs service life of parts, ensures stable operation of key parts of the pile driver, reduces faults, and improves reliability of equipment.

Description

Technical Field

[0001] The present invention relates to a pile driver device, in particular to a pile driver for civil engineering, belonging to the field of pile drivers. Background Art

[0002] In the field of civil engineering, pile foundation construction is a critical prerequisite for the launch of many projects. Like the foundation of a building, it plays a decisive role in the stability and safety of the entire project. As one of the core equipment for pile foundation construction, diesel pile drivers, with their unique performance and significant advantages, play an indispensable role in various civil engineering scenarios.

[0003] From a cost and efficiency perspective, diesel pile drivers offer significant advantages in many civil engineering operations. First, diesel, as a widely used energy source, is readily available in most areas and relatively easy to store and transport, significantly reducing the cost and complexity of energy supply for the equipment. Second, diesel pile drivers are easy to operate and require sophisticated maintenance techniques, enabling construction personnel to master them after a short training period. Their efficient piling performance can significantly shorten project durations, thereby reducing labor costs and equipment rental expenses, ultimately lowering overall construction costs.

[0004] However, during operation, diesel pile drivers require continuous lubrication to ensure smooth movement of the pile plug within the cylinder block 4 and reduce frictional losses. However, with current diesel pile drivers, lubrication is often sprayed manually. This method not only poses numerous safety risks but also easily results in uneven lubrication, hindering effective lubrication and ultimately failing to achieve the desired protective effect.

[0005] Therefore, it is urgent to improve the civil engineering pile driver to solve the above-mentioned problems. Summary of the Invention

[0006] The present invention aims to provide a pile driver for civil engineering, which can move downward along with a pile hammer and a cylinder body. During the movement, the pile hammer drives a resistance rod (1) to move synchronously. When the resistance rod (1) contacts and abuts an L-shaped rotating rod (1), the L-shaped rotating rod (1) is driven to rotate. This rotation causes the other end of the L-shaped rotating rod (1) to drive a plunger (2) to slide inside an oil pump (1). The internal volume of the oil pump (1) changes, thereby generating pressure. Under the action of this pressure, lubricating oil is squeezed out and sprayed out through a nozzle (1), evenly spreading on the upper end surface of the plunger (1). At the same time, the plunger (1) operates inside the cylinder body, compressing the air in the cylinder, causing its temperature to rise to a corresponding level. At this time, the nozzle (2) sprays diesel, which rapidly ignites and explodes in the heated cylinder body, instantly generating a strong impact force. The lubricating oil reduces friction between the plunger (1) and the cylinder body, reduces the degree of component wear, and extends the service life of the plunger (1) and the cylinder body. This ensures the stable operation of key components of the pile driver, reduces the frequency of failures caused by friction loss, and improves the reliability of the equipment.

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] A pile driver for civil engineering, comprising a pile hammer, a pile cap, and a lubricating oil spraying assembly, wherein the pile hammer and the pile cap are slidably connected to a pile frame, the pile hammer corresponds to the pile cap, a cylinder body is fixedly connected to the interior of the pile hammer, a plunger corresponding to the cylinder body is fixedly connected to the upper surface of the pile cap, and a connecting piece is fixedly connected to the lower bottom surface of the pile cap;

[0009] The lubricating oil spraying assembly includes a plurality of nozzles 1, a plurality of oil pumps 1 and a plurality of plungers 2, the plungers 2 being slidably connected to the oil pumps 1, the oil pumps 1 being connected to the nozzles 1, the plurality of oil pumps 1 being located inside the pile cap, an L-shaped rotating rod 1 being rotatably connected to a side of the pile cap close to the plungers 2, one end of the L-shaped rotating rod 1 corresponding to one end of the plungers 2, a resisting rod 1 being fixedly connected to a side of the pile hammer close to the L-shaped rotating rod 1, the resisting rod 1 corresponding to the L-shaped rotating rod 1;

[0010] The plurality of nozzles 1 are all fixed inside the plunger 1 and extend to the upper surface thereof. The interior of the plunger 1 is fixedly connected with a nozzle 2, and one end of the nozzle 2 extends to the upper surface of the plunger 1.

[0011] Preferably, the upper surface of the pile cap is rotatably connected to a connecting rod 1 on one side close to the L-shaped rotating rod 1, the connecting rod 1 is rotatably connected to a swivel 1 on one end close to the L-shaped rotating rod 1, the L-shaped rotating rod 1 is fixedly connected to a sliding plate 1 on one side close to the swivel 1, and the sliding plate 1 passes through the interior of the swivel 1 and is slidably connected to the swivel 1.

[0012] Preferably, a contact plate 1 is fixedly connected to the outer wall of one end of the connecting rod 1 close to the swivel 1, and one end of the contact plate 1 corresponds to one side of the L-shaped rotating rod 1.

[0013] Preferably, a fixing plate 1 is fixedly connected to one side of the pile cap close to the swivel 1, a return spring 1 is provided between the fixing plate 1 and the L-shaped rotating rod 1, and both ends of the return spring 1 are respectively connected to the fixing plate 1 and the L-shaped rotating rod 1.

[0014] Preferably, the end of the connecting rod 1 away from the swivel 1 is fixedly connected to the rotating plate 1, the pile cap is fixedly connected to the outer wall of the rotating plate 1 close to the electric telescopic rod 1, and the output end of the electric telescopic rod 1 is connected to one side of the rotating plate 1 through a connecting rope.

[0015] Preferably, an oil pump 2 is provided inside the pile cap, one end of the oil pump 2 is connected to the nozzle 2, a plunger 3 is slidably connected inside the oil pump 2, and one end of the plunger 3 extends to the upper surface of the pile cap.

[0016] Preferably, the pile cap is rotatably connected to a connecting rod 2 on one side close to the plunger 3, the connecting rod 2 is rotatably connected to a swivel 2 on one end close to the plunger 3, the swivel 2 is slidably connected to a sliding plate 2 inside, one side of the sliding plate 2 is fixedly connected to an L-shaped rotating rod 2, one end of the L-shaped rotating rod 2 corresponds to the upper end of the plunger 3, and the pile hammer is fixedly connected to a resistance rod 2 on one side close to the L-shaped rotating rod 2, and the resistance rod 2 corresponds to the L-shaped rotating rod 2.

[0017] Preferably, one end of the connecting rod 2 close to the swivel 2 is fixedly connected to a contact plate 2, one end of the contact plate 2 corresponds to one side of the L-shaped rotating rod 2, and the upper surface of the pile cap close to the L-shaped rotating rod 2 is fixedly connected to a fixing plate 2, and a reset spring 2 is provided between the fixing plate 2 and the L-shaped rotating rod 2.

[0018] Preferably, the end of the connecting rod 2 away from the swivel 2 is fixedly connected to the rotating plate 2, the pile cap is fixedly connected to the outer wall of the rotating plate 2 close to the electric telescopic rod 2, and the output end of the electric telescopic rod 2 is connected to one side of the rotating plate 2 through a connecting rope.

[0019] Preferably, the upper end of the pile cap is fixedly connected to an outer sound insulation shell, the interior of the outer sound insulation shell is fixedly connected to a sound absorbing tube, and the inner wall of the sound absorbing tube is provided with a plurality of sound absorbing holes.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. As the pile hammer moves downward together with the cylinder body, the pile hammer drives the resistance rod 1 to move synchronously during the movement process. When the resistance rod 1 contacts and interferes with the L-shaped rotating rod 1, it pushes the L-shaped rotating rod 1 to rotate. This rotation causes the other end of the L-shaped rotating rod 1 to drive the plunger 2 to slide inside the oil pump 1. The internal volume of the oil pump 1 changes, thereby generating pressure. Under the action of this pressure, the lubricating oil is squeezed out and sprayed out through the nozzle 1, evenly spreading on the upper end surface of the plunger 1. At the same time, the plunger 1 operates inside the cylinder body, compressing the air in the cylinder, causing its temperature to rise to a corresponding level. At this time, the nozzle 2 sprays diesel, which quickly ignites and explodes in the heated cylinder body, instantly generating a strong impact force. The use of lubricating oil reduces the friction between the plunger 1 and the cylinder body, reduces the wear of components, extends the service life of the plunger 1 and the cylinder body, ensures the stable operation of the key components of the pile driver, reduces the frequency of failures caused by friction loss, and improves the reliability of the equipment.

[0022] 2. Through precise control of the extension and shortening of the electric telescopic rod 1 and the electric telescopic rod 2, the contact state between the L-shaped rotating rod 1 and the resistance rod 1, as well as the contact state between the L-shaped rotating rod 2 and the resistance rod 2 can be flexibly and accurately adjusted, thereby achieving precise control over the working state of the oil pump 1 and the oil pump 2, and timely controlling the supply of lubricating oil and diesel according to different construction requirements.

[0023] 3. During piling operations, the outer soundproof shell and the sound-absorbing tube work together to reduce noise. The outer soundproof shell is made of high-sound-insulating materials, preventing the noise generated by piling from being transmitted to the surrounding environment. The multiple sound-absorbing holes in the inner wall of the sound-absorbing tube utilize the principle of Helmholtz resonance. When sound enters the sound-absorbing tube, it causes the air column within the sound-absorbing holes to vibrate, converting some of the sound energy into heat and dissipating it, effectively reducing the noise generated by piling operations and reducing noise pollution to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 The three-dimensional structure provided by the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 The present invention provides Figure 1 A in the middle is a separate enlarged structural diagram;

[0027] Figure 3 Schematic diagram of the partial three-dimensional structure provided by the present invention Figure 1 ;

[0028] Figure 4 The present invention provides Figure 3 The structural diagram at B is enlarged separately;

[0029] Figure 5 The present invention provides Figure 4 The schematic diagram of the structure is enlarged separately at C in the middle;

[0030] Figure 6 The present invention provides Figure 4 The structural diagram at D in the middle is enlarged separately;

[0031] Figure 7 Schematic diagram of the partial three-dimensional structure provided by the present invention Figure 1 ;

[0032] Figure 8 The present invention provides Figure 7 The schematic diagram of the structure is enlarged at E in the middle;

[0033] Figure 9 Schematic diagram of the partial three-dimensional structure provided by the present invention Figure 3 .

[0034] In the figure, 1. Pile hammer; 2. Pile cap; 3. Lubricating oil spray assembly; 4. Cylinder block; 5. Plunger 1; 6. Connector; 7. Nozzle 1; 8. Oil pump 1; 9. Plunger 2; 10. L-shaped rotating rod 1; 11. Resistance rod 1; 12. Nozzle 2; 21. Connecting rod 1; 22. Swivel 1; 23. Sliding plate 1; 31. Resistance plate 1; 41. Fixed plate 1; 42. Return spring 1; 51. Rotating Plate 1; 52. Electric telescopic rod 1; 61. Oil pump 2; 62. Plunger 3; 71. Connecting rod 2; 72. Swivel 2; 73. Sliding plate 2; 74. L-shaped rotating rod 2; 75. Resistance rod 2; 81. Resistance plate 2; 82. Fixed plate 2; 83. Return spring 2; 91. Rotating plate 2; 92. Electric telescopic rod 2; 101. Outer sound insulation shell; 102. Sound-absorbing tube; 103. Sound-absorbing hole. DETAILED DESCRIPTION

[0035] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0036] like Figures 1-9As shown, the pile driver for civil engineering provided in this embodiment includes a pile hammer 1, a pile cap 2 and a lubricating oil spraying assembly 3. The pile hammer 1 and the pile cap 2 are slidably connected to the pile frame. The pile frame provides support and guidance for the pile hammer 1 and the pile cap 2, ensuring that the pile hammer 1 and the pile cap 2 can move along a predetermined vertical direction during the piling process, thereby ensuring the accuracy and stability of the piling. The pile hammer 1 corresponds to the pile cap 2. The pile hammer 1 is a key executive component of the pile driver. It generates impact force through its own up and down movement to drive the pile body into the ground. It is the core power output part for realizing the piling operation. The pile hammer 1 is fixedly connected to a cylinder body 4 inside, and the upper surface of the pile cap 2 is fixedly connected to a cylinder body. The plunger 15 corresponding to the cylinder body 4 cooperates with the plunger 15 on the pile cap 2. The movement of the plunger 15 in the cylinder body 4 realizes the compression of the gas and makes it reach the corresponding temperature. The bottom surface of the pile cap 2 is fixedly connected with a connecting piece 6. The connecting piece 6 corresponds to the pile body. The connecting piece 6 firmly connects the pile cap 2 and the pile body together to ensure that the impact force transmitted to the pile cap 2 by the pile hammer 1 during the piling process can be reliably transmitted to the pile body, so that the pile body is smoothly driven into the ground. The pile cap 2 is located between the pile hammer 1 and the pile body, protecting the top of the pile body from direct impact damage by the pile hammer 1, and also making the impact force of the pile hammer 1 more evenly transmitted to the pile body.

[0037] The lubricating oil spraying assembly 3 includes multiple nozzles 7, multiple oil pumps 8 and multiple plungers 9. There are two nozzles 7, oil pumps 8 and plungers 9. The plunger 29 is slidably connected to the oil pump 8. The oil pump 8 is connected to the nozzle 7. The function of the oil pump 8 is to generate a pressure difference through the sliding of the plunger 29 inside, thereby pumping the lubricating oil to the nozzle 7 connected thereto, providing power for the spraying of the lubricating oil, and spraying the lubricating oil to the corresponding position through the nozzle 7. The multiple oil pumps 8 are all located inside the pile cap 2. The number of the multiple oil pumps 8 is two, and the other ends of the two oil pumps 8 are connected to the lubricating oil supply. The oil tank is connected, and an L-shaped rotating rod 10 is rotatably connected to the side of the upper surface of the pile cap 2 near the plunger 29. One end of the L-shaped rotating rod 10 corresponds to one end of the plunger 29. A resistance rod 11 is fixedly connected to the side of the pile hammer 1 near the L-shaped rotating rod 10. The resistance rod 11 corresponds to the L-shaped rotating rod 10. The plunger 29 is slidably connected to the oil pump 8. When the resistance rod 11 of the pile hammer 1 pushes the L-shaped rotating rod 10 on the pile cap 2 to rotate, one end of the L-shaped rotating rod 10 pushes the plunger 29 to slide downward in the oil pump 8, changing the volume in the oil pump 8, generating pressure, squeezing out the lubricating oil and spraying it out through the nozzle 7;

[0038] Multiple nozzles 7 are fixed inside the plunger 5 and extend to its upper surface. Nozzle 7 sprays the lubricating oil pumped by the oil pump 8 to the parts that need lubrication. Multiple nozzles 7 are fixed inside the plunger 5 and extend to its upper surface, and can accurately spray the lubricating oil to specific positions. Nozzle 2 12 is fixedly connected to the inside of the plunger 5. One end of nozzle 2 12 extends to the upper surface of the plunger 5. Nozzle 2 12 is similar to nozzle 7, except that nozzle 2 12 sprays diesel, which is ignited by high temperature in the cylinder body 4. The driving force generated by the combustion of diesel in the confined space is used to push the pile hammer 1 and the cylinder body 4 upward on the pile frame, and then automatically fall down due to gravity, generating an impact force on the pile cap 2;

[0039] Among them, such as Figures 1-9 As shown, the upper surface of the pile cap 2 is rotatably connected to a connecting rod 21 on one side close to the L-shaped rotating rod 10, and the end of the connecting rod 21 close to the L-shaped rotating rod 10 is rotatably connected to a swivel 22. One end of the connecting rod 21 is rotatably connected to the pile cap 2, providing support and a rotation basis for the swivel 22 and related components, so that the swivel 22 can make a circular motion around the connection point with the connecting rod 21. The side of the L-shaped rotating rod 10 close to the swivel 22 is fixedly connected to a sliding plate 23. The sliding plate 23 passes through the interior of the swivel 22 and is slidably connected to the swivel 22. The swivel 22 is a sliding plate 23. 3 provides a slidable track so that the sliding plate 23 can slide inside it. On the other hand, by maintaining the connection between the sliding plate 23 and the L-shaped rotating rod 10, the L-shaped rotating rod 10 rotates to drive the sliding plate 23 and the rotating ring 22 to rotate. At the same time, the L-shaped rotating rod 10 can also drive the sliding plate 23 to slide inside the rotating ring 22, and adjust the distance between the L-shaped rotating rod 10 and the contact rod 11 so that the contact rod 11 cannot contact the L-shaped rotating rod 10 when moving up and down, so that the L-shaped rotating rod 10 remains stationary, thereby keeping the plunger 29 stationary and stopping the oil pump 8;

[0040] Further, such as Figure 1 As shown, a contact plate 31 is fixedly connected to the outer wall of one end of the connecting rod 21 near the rotating ring 22. One end of the contact plate 31 corresponds to one side of the L-shaped rotating rod 10. The contact plate 31 limits the rotation range of the L-shaped rotating rod 10. At the same time, the rotation of the contact plate 31 can push the L-shaped rotating rod 10 to drive the sliding plate 23 to slide in the rotating ring 22, thereby adjusting the position of the L-shaped rotating rod 10.

[0041] Further, if Figures 1-9As shown, a fixing plate 41 is fixedly connected to one side of the pile cap 2 close to the swivel 22, and a return spring 42 is provided between the fixing plate 41 and the L-shaped rotating rod 10. The fixing plate 41 provides a fixed connection point for the return spring 42, and the two ends of the return spring 42 are respectively connected to the fixing plate 41 and the L-shaped rotating rod 10. The return spring 42 is a key component for realizing the reset of the L-shaped rotating rod 10. It has the function of storing and releasing elastic potential energy. When the L-shaped rotating rod 10 deviates from the initial position under the action of external force, the return spring 42 undergoes elastic deformation and stores elastic potential energy. When the external force is removed, the return spring 42 releases the stored elastic potential energy, generating an elastic force to restore the L-shaped rotating rod 10 to its initial position, thereby ensuring that the L-shaped rotating rod 10 can perform periodic motion and ensuring the continuity and stability of the operation of the lubricating oil spraying assembly 3;

[0042] Furthermore, Figures 1-9 As shown, the end of the connecting rod 21 away from the swivel 22 is fixedly connected to the rotating plate 51, and the outer wall of the pile cap 2 close to the rotating plate 51 is fixedly connected to the electric telescopic rod 52. The output end of the electric telescopic rod 52 is connected to one side of the rotating plate 51 through a connecting rope. The rotating plate 51 is a key component of the connecting rod 21 and the electric telescopic rod 52. Its main function is to serve as a force point, receiving the tension transmitted from the electric telescopic rod 52 through the connecting rope. The electric telescopic rod 52 controls the movement of the rotating plate 51 by its own extension and shortening, thereby accurately adjusting the position and movement state of the connecting rod 21L-shaped rotating rod 10 and related components.

[0043] Among them, such as Figures 1-9 As shown, an oil pump 2 61 is provided inside the pile cap 2, one end of the oil pump 2 61 is connected to the nozzle 2 12, and the other end of the oil pump 2 61 is connected to the diesel storage tank. A plunger 3 62 is slidably connected inside the oil pump 2 61, and one end of the plunger 3 62 extends to the upper surface of the pile cap 2. The oil pump 2 61 is a key power component of the diesel supply system, and its main function is to provide power for the transportation of diesel. The volume inside the oil pump 2 61 is changed by the reciprocating sliding of the plunger 3 62 inside the oil pump 2, thereby generating a pressure difference. When the plunger 3 62 slides outward, the volume inside the oil pump 2 61 increases, the pressure decreases, and the diesel is sucked into the oil pump 2 61 under the action of atmospheric pressure or the gravity of the oil itself. When the plunger 3 62 slides inward, the volume inside the oil pump 2 61 decreases, the pressure increases, the diesel is squeezed out and passes through the channel connected to the nozzle 2 12, and is finally sprayed out from the nozzle 2 12.

[0044] Further, such as Figures 1-9As shown, the pile cap 2 is rotatably connected to the side of the plunger 3 62 with a connecting rod 2 71, and the end of the connecting rod 2 71 near the plunger 3 62 is rotatably connected to the swivel 2 72. One end of the connecting rod 2 71 is rotatably connected to the pile cap 2, providing a rotation fulcrum for the entire structure. The interior of the swivel 2 72 is slidably connected to a sliding plate 2 73, and one side of the sliding plate 2 73 is fixedly connected to an L-shaped rotating rod 2 74. The distance between the L-shaped rotating rod 2 74 and the connecting rod 2 71 is adjusted by sliding the sliding plate 2 73 inside the swivel 2 72. At the same time, when the L-shaped rotating rod 2 74 rotates, it will drive the swivel 2 72 to rotate on one end of the connecting rod 2 71 through the sliding plate 2 73. One end of the L-shaped rotating rod 74 corresponds to the upper end of the plunger 3 62. The rotation of the L-shaped rotating rod 74 pushes the plunger 3 62 to slide in the oil pump 2 61, so that the oil pump 2 61 works. A second interference rod 75 is fixedly connected to the side of the pile hammer 1 close to the L-shaped rotating rod 74. The interference rod 75 corresponds to the L-shaped rotating rod 74. The pile hammer 1 moves up and down to drive the interference rod 75 to move up and down. By utilizing the correspondence between the interference rod 75 and the L-shaped rotating rod 74, when the pile hammer 1 moves to conflict with the pile cap 2, the interference rod 75 and the L-shaped rotating rod 74 conflict with each other, so that one end of the L-shaped rotating rod 74 pushes the plunger 3 to slide in the oil pump 2 61.

[0045] Furthermore, if Figures 1-9 As shown, one end of the connecting rod 2 71 close to the rotating ring 2 72 is fixedly connected to the contact plate 2 81, and one end of the contact plate 2 81 corresponds to one side of the L-shaped rotating rod 2 74. By rotating the contact plate 2 81 and utilizing the mutual interference between one end of the contact plate 2 81 and the L-shaped rotating rod 2 74, the L-shaped rotating rod 2 74 can be pushed to drive the sliding plate 2 73 to slide inside the rotating ring 2 72, thereby adjusting the distance between the L-shaped rotating rod 2 74 and the contact rod 2 75, and the contact rod 2 75 will not interfere with the contact rod 2 75 when it moves up and down. The two levers 74 and 75 are connected to each other, and the two levers 74 and 75 are connected to each other. ...

[0046] Among them, such as Figures 1-9As shown, one end of the connecting rod 2 71 away from the swivel 2 72 is fixedly connected to the rotating plate 2 91, and the outer wall of the pile cap 2 close to the rotating plate 2 91 is fixedly connected to the electric telescopic rod 2 92. The output end of the electric telescopic rod 2 92 is connected to one side of the rotating plate 2 91 through a connecting rope. When the electric telescopic rod 2 92 is extended or shortened, the connecting rope will be tightened accordingly, thereby pulling the rotating plate 2 91. After the rotating plate 2 91 is subjected to force, it rotates around the connection point between the connecting rod 2 71 and the pile cap 2, driving the connecting rod 2 71 to rotate synchronously.

[0047] Among them, such as Figures 1-9 As shown, the upper end of the pile cap 2 is fixedly connected to an outer soundproof shell 101. This shell primarily serves to block sound transmission. Made of a material with high sound insulation properties, it effectively prevents noise generated during piling from propagating to the surrounding environment, reducing noise pollution. A sound-absorbing tube 102 is fixedly connected to the interior of this shell. The inner wall of this sound-absorbing tube 102 is provided with a plurality of sound-absorbing holes 103. The primary function of this sound-absorbing tube 102 is to absorb noise generated by piling. These holes 103 utilize the principle of Helmholtz resonance. When sound enters the tube 102, it causes the air column within the holes 103 to vibrate, converting some of the sound energy into heat and dissipating it, thereby achieving the purpose of absorbing and reducing noise. The sound-absorbing tube 102 is made of a material with excellent sound absorption properties, such as porous aluminum fiberboard, to further enhance the sound absorption effect and effectively reduce noise generated during piling operations.

[0048] like Figures 1-9As shown, the principle of a civil engineering pile driver provided by this embodiment is as follows: a pile hammer 1 is driven upward on a pile frame by a corresponding crane assembly. Simultaneously, the electric telescopic rod 1 52 and the electric telescopic rod 2 92 drive the rotating plate 1 51 and the rotating plate 2 91 to rotate via a connecting rope, thereby driving the connecting rod 1 21 and the connecting rod 2 71 to rotate, causing the interference rod 1 11 and the interference rod 2 75 to rotate, breaking the interference relationship with the L-shaped rotating rod 10 and the L-shaped rotating rod 2 74. Under the tension of the return spring 1 42 and the return spring 2 83, the L-shaped rotating rod 10 and the L-shaped rotating rod 2 74 drive the sliding plate 1 23 and the sliding plate 2 73 to slide within the rotating ring 1 22 and the rotating ring 2 72, moving to a position corresponding to the interference rod 1 11 and the interference rod 2 75. Then, the crane assembly lowers the pile hammer 1 from the pile frame, and the pile hammer 1 freely falls on the pile frame under the action of gravity. When the pile hammer 1 drives the cylinder body 4 downward, it drives the contact rod 11 into contact with the L-shaped rotating rod 10, pushing the L-shaped rotating rod 10 to rotate the slide plate 1 and the swivel 22. The other end of the L-shaped rotating rod 10 pushes the plunger 29 downward within the oil pump 8, changing the volume within the oil pump 8 and forcing lubricating oil from the lubricating oil supply tank through the oil pump 8. The oil is then sprayed onto the surface of the plunger 5 through the nozzle 7. When the pile hammer 1 reaches a certain position, the plunger 5 moves within the cylinder body 4, compressing the gas to a certain temperature. The pile hammer 1 continues to drive the contact rod 2 75. When the lower surface of the pile hammer 1 contacts the upper surface of the pile cap 2, the pile cap 2, under the impact of the pile hammer 1, drives the connector 6 downward, pushing the pile body downward. Simultaneously, the contact rod 11 moves downward, breaking contact with the L-shaped rotating rod 10 and returning to its original position under the action of the return spring 42. At the same time, the friction rod 2 75 and the L-shaped rotating rod 2 74 conflict with each other, pushing the L-shaped rotating rod 2 74 to rotate. The other end of the L-shaped rotating rod 2 74 pushes the plunger 3 62 to slide in the oil pump 2 61. The oil pump 2 61 works, squeezing the diesel from the diesel storage tank through the oil pump 2 61 and spraying it through the nozzle 2 12. The diesel burns inside the cylinder body 4, and the thrust generated pushes the cylinder body 4 and the pile cap 2 to move upward on the pile frame, and at the same time pushes the pile cap 2, the connecting piece 6 and the pile body downward again. During the piling operation, the outer sound insulation shell 101 blocks the noise generated by the piling operation from being transmitted to the surrounding environment. The multiple sound absorbing holes 103 opened on the inner wall of the sound absorbing tube 102 use the Helmholtz resonance principle. When the sound is transmitted into the sound absorbing tube 102, it causes the air column in the sound absorbing hole 103 to vibrate, and part of the sound energy is converted into heat energy and consumed, effectively reducing the noise generated by the piling operation and reducing the noise pollution to the surrounding environment.

[0049] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0050] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0051] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A pile driver for civil engineering, comprising a pile hammer (1), a pile cap (2) and a lubricating oil spraying assembly (3), characterized in that: The pile hammer (1) and the pile cap (2) are slidably connected to the pile frame. The pile hammer (1) corresponds to the pile cap (2). A cylinder body (4) is fixedly connected inside the pile hammer (1). A plunger (5) corresponding to the cylinder body (4) is fixedly connected to the upper surface of the pile cap (2). A connecting piece (6) is fixedly connected to the lower bottom surface of the pile cap (2). The lubricating oil spraying assembly (3) comprises a plurality of nozzles (7), a plurality of oil pumps (8) and a plurality of plungers (9), wherein the plungers (9) are slidably connected to the oil pumps (8), and the oil pumps (8) are connected to the nozzles (7). The plurality of oil pumps (8) are all located inside the pile cap (2), and an L-shaped rotating rod (10) is rotatably connected to the side of the upper surface of the pile cap (2) close to the plungers (9), and one end of the L-shaped rotating rod (10) corresponds to one end of the plungers (9). The pile hammer (1) is fixedly connected to a resistance rod (11) close to the side of the L-shaped rotating rod (10), and the resistance rod (11) corresponds to the L-shaped rotating rod (10); The plurality of nozzles 1 (7) are fixed inside the plunger 1 (5) and extend to the upper surface thereof, the interior of the plunger 1 (5) is fixedly connected with a nozzle 2 (12), and one end of the nozzle 2 (12) extends to the upper surface of the plunger 1 (5).

2. A civil engineering pile driver according to claim 1, characterized in that: The upper surface of the pile cap (2) is rotatably connected to a connecting rod (21) at one side close to the L-shaped rotating rod (10), and the connecting rod (21) is rotatably connected to a swivel (22) at one end close to the L-shaped rotating rod (10). The L-shaped rotating rod (10) is fixedly connected to a sliding plate (23) at one side close to the swivel (22), and the sliding plate (23) passes through the interior of the swivel (22) and is slidably connected to the swivel (22).

3. A pile driver for civil engineering according to claim 2, characterized in that: The outer wall of one end of the connecting rod (21) close to the rotating ring (22) is fixedly connected with a contact plate (31), and one end of the contact plate (31) corresponds to one side of the L-shaped rotating rod (10).

4. A civil engineering pile driver according to claim 2, characterized in that: A fixing plate (41) is fixedly connected to one side of the pile cap (2) close to the rotating ring (22), and a return spring (42) is provided between the fixing plate (41) and the L-shaped rotating rod (10), and the two ends of the return spring (42) are respectively connected to the fixing plate (41) and the L-shaped rotating rod (10).

5. A civil engineering pile driver according to claim 2, characterized in that: One end of the connecting rod (21) away from the rotating ring (22) is fixedly connected to the rotating plate (51), and the outer wall of the pile cap (2) close to the rotating plate (51) is fixedly connected to the electric telescopic rod (52), and the output end of the electric telescopic rod (52) is connected to one side of the rotating plate (51) through a connecting rope.

6. A civil engineering pile driver according to claim 1, characterized in that: An oil pump 2 (61) is provided inside the pile cap (2), one end of the oil pump 2 (61) is connected to the nozzle 2 (12), and a plunger 3 (62) is slidably connected inside the oil pump 2 (61), and one end of the plunger 3 (62) extends to the upper surface of the pile cap (2).

7. A civil engineering pile driver according to claim 6, characterized in that: The pile cap (2) is rotatably connected to a connecting rod 2 (71) on one side close to the plunger 3 (62); the connecting rod 2 (71) is rotatably connected to a swivel 2 (72) on one end close to the plunger 3 (62); the swivel 2 (72) is slidably connected to a sliding plate 2 (73) inside; one side of the sliding plate 2 (73) is fixedly connected to an L-shaped rotating rod 2 (74); one end of the L-shaped rotating rod 2 (74) corresponds to the upper end of the plunger 3 (62); the pile hammer (1) is fixedly connected to a resisting rod 2 (75) on one side close to the L-shaped rotating rod 2 (74); the resisting rod 2 (75) corresponds to the L-shaped rotating rod 2 (74).

8. A civil engineering pile driver according to claim 7, characterized in that: One end of the second connecting rod (71) close to the second rotating ring (72) is fixedly connected to a second contact plate (81), one end of the second contact plate (81) corresponds to one side of the second L-shaped rotating rod (74), and the upper surface of the side of the pile cap (2) close to the second L-shaped rotating rod (74) is fixedly connected to a second fixing plate (82), and a second return spring (83) is provided between the second fixing plate (82) and the second L-shaped rotating rod (74).

9. A civil engineering pile driver according to claim 7, characterized in that: One end of the second connecting rod (71) away from the second rotating ring (72) is fixedly connected to the second rotating plate (91), and the outer wall of the pile cap (2) close to the second rotating plate (91) is fixedly connected to the second electric telescopic rod (92), and the output end of the second electric telescopic rod (92) is connected to one side of the second rotating plate (91) through a connecting rope.

10. A pile driver for civil engineering according to claim 1, characterized in that: The upper end of the pile cap (2) is fixedly connected to an outer sound insulation shell (101), the interior of the outer sound insulation shell (101) is fixedly connected to a sound absorbing tube (102), and the inner wall of the sound absorbing tube (102) is provided with a plurality of sound absorbing holes (103).

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