A pile driver with a lifting mechanism

Abstract

The application discloses a pile driver with a lifting mechanism and belongs to the technical field of pile drivers, which comprises a supporting mechanism and a lifting mechanism. The lifting mechanism comprises a vertical frame which is rotatably installed on the supporting mechanism. A pile driving mechanism is slidably installed on the vertical frame, and the lifting mechanism is used for driving the pile driving mechanism to ascend and descend along the vertical frame. The pile driving mechanism comprises a pile driving part which comprises a connecting part, a lower counterweight, a carrier frame and an upper counterweight. A boss is installed on the upper end of the connecting part, an oil cavity is arranged in the boss, a nozzle which is in communication with the oil cavity is installed on the upper end of the boss, and a guide frame is also installed on the upper end of the connecting part. The lower counterweight, the carrier frame and the upper counterweight are slidably installed on the guide frame in sequence from bottom to top. Through the overall structure, the application effectively improves the pile foundation soil entering efficiency and construction tamping precision, and significantly improves the pile driving construction quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of pile driver technology, and more specifically, to a pile driver with a lifting mechanism. Background Technology

[0002] Pile foundation construction is a fundamental process in various infrastructure projects such as buildings, municipal works, and transportation, directly determining the stability of the foundation and the overall quality of the project. As the core specialized equipment for pile foundation construction, the pile driver operates on the principle of driving piles deep into the soil through counterweight storage and impact pressure. It is widely used in building construction, roads, bridges, water conservancy projects, and other engineering scenarios. Based on the power source, existing pile drivers mainly include gravity-driven, fuel-powered impact, and hydraulic types. Among them, gravity-driven pile drivers are the most widely used due to their simple structure and low cost. However, this type of equipment has inherent defects in structural design and operational performance, making it difficult to adapt to modern, complex construction scenarios.

[0003] Currently, most traditional mainstream pile drivers adopt a single counterweight energy storage structure. Since the weight and lifting height of the counterweight cannot be changed, the pile driving rhythm and speed of the pile driver are fixed and cannot be precisely adjusted according to the different needs of geological hardness, pile specifications, and penetration depth at the construction site. At the same time, it relies on only a single gravitational potential energy to complete the impact operation, with a single power mode and poor force generation effect, resulting in significant shortcomings in adaptability to working conditions and defects in construction performance. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide a pile driver with a lifting mechanism.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A pile driver with a lifting mechanism includes a support mechanism; A lifting mechanism, the lifting mechanism including a frame, the frame being rotatably mounted on a support mechanism; A piling mechanism is slidably mounted on a vertical frame, and a lifting mechanism is used to drive the piling mechanism to move up and down along the vertical frame. The piling mechanism includes a piling component, which includes a connecting part, a lower counterweight, a carrier frame, and an upper counterweight. A boss is installed at the upper end of the connecting part, and an oil cavity is provided inside the boss. A nozzle communicating with the oil cavity is installed at the upper end of the boss. A guide frame is also installed at the upper end of the connecting part. The lower counterweight, carrier frame, and upper counterweight are slidably installed on the guide frame from bottom to top. The carrier frame is fixedly connected to the guide frame by bolts. A hollow frustum corresponding to the boss is installed at the lower end of the lower counterweight. A second spring is fixedly installed at the lower end of the upper counterweight, and the second spring passes through the carrier frame.

[0007] Furthermore, the support mechanism includes a carrier plate, and a hydraulic cylinder is fixedly installed at each of the four corners of the carrier plate. A disc support is fixedly installed at the telescopic end of each hydraulic cylinder, and track wheels are installed on both sides of the carrier plate.

[0008] Furthermore, the lifting mechanism also includes a folding support rod, a second hydraulic cylinder, and a cable reel. The two ends of the folding support rod are rotatably mounted on the upper end of the carrier plate and the top of the upright, respectively. The second hydraulic cylinder is movably mounted on one end of the carrier plate, and its telescopic end is movably connected to the middle of the upright. The cable reel is fixedly mounted on the upper end of the carrier plate, and its output end is provided with a rope. A guide rod is fixedly mounted on the piling mechanism, and the piling mechanism is slidably connected to the upright through the guide rod. One end of the rope passes over the top of the upright through multiple fixed pulleys and is fixedly connected to the piling mechanism.

[0009] Furthermore, the piling mechanism also includes a counterweight traction component, which includes a frame, a cylinder, and a hook release assembly. The frame is fixedly installed on the upper end of the piling component, and a partition is fixedly installed in the middle of the frame. The cylinder is fixedly installed on the upper end of the partition, and the hook release assembly is installed on the lower end of the partition. The cylinder can drive the hook release assembly to clamp the lower counterweight block.

[0010] Furthermore, the hook release assembly includes a limiting frame and a lifting plate. The lifting plate is slidably installed within the limiting frame. Grippers are rotatably installed on both sides of the lifting plate. A spring is installed between the two grippers. A stop block is fixedly installed at the bottom of the lifting plate and is positioned between the two grippers. A connecting column is fixedly installed at the upper end of the lifting plate and is fixedly connected to the telescopic end of the cylinder. The top of the limiting frame is provided with a guide groove that matches the grippers.

[0011] Furthermore, a column is fixedly installed at the upper end of the lower counterweight, and the column passes through the second spring, the upper counterweight, and the bottom of the frame in sequence. A disc is fixedly installed at the upper end of the column, and the position of the disc corresponds to the position between the two grippers.

[0012] Furthermore, the lower ends of the two grippers on opposite sides are arc-shaped, and the distance between the two grippers is less than the diameter of the disk.

[0013] Furthermore, the nozzle is an electrically controlled nozzle, and a pressing key is provided at the upper end of the connecting part. The pressing key is electrically connected to the nozzle. A trigger element is rotatably installed at the upper end of the connecting part, and one end of the trigger element is in contact with the pressing key. A rotating rod and an electric push rod are rotatably installed at the lower end of the lower counterweight. A protrusion corresponding to the position of the trigger element is fixedly installed at one end of the rotating rod. The electric push rod is located on one side of the rotating rod, and the telescopic end of the electric push rod is rotatably connected to the middle of the rotating rod.

[0014] Furthermore, a cylindrical cavity is provided in the middle of the lower end of the hollow frustum. The diameter of the cylindrical cavity is the same as the diameter of the boss, and the length of the cylindrical cavity is greater than the length of the boss.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention, through the adjustable fixed position of the carrier frame and the structure of double counterweight blocks and spring II, enables the present invention to flexibly adjust the spring storage stroke and the reciprocating motion cycle rate of the counterweight according to different geological conditions and pile foundation construction requirements, accurately adapt to various construction conditions, and greatly improve the adaptability of equipment conditions and construction flexibility.

[0016] (2) The present invention uses a composite power structure that combines the lower counterweight block, the upper counterweight block gravity storage, air compression and fuel combustion to make the pile driving power of the present invention strong and concentrated, effectively improving the efficiency of pile foundation entering the soil and the accuracy of construction compaction, avoiding construction problems such as pile foundation deviation and incomplete soil entry from the root, and significantly improving the quality and efficiency of pile driving construction.

[0017] (3) The present invention, through the structural setting of the four corners of the support mechanism with independently adjustable hydraulic cylinders, the angle adjustable upright frame and the automated counterweight traction component, can be adapted to complex sites with uneven muddy terrain, realize precise leveling of equipment and construction of inclined piles and straight piles under multiple working conditions, and at the same time, the fully automated power storage and hook release operation reduces the risk of manual operation, ensures construction stability and safety, and makes the equipment more mobile. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the piling mechanism of the present invention; Figure 3 This is a schematic diagram of the piling component of the present invention; Figure 4 This is a schematic diagram of the structure of the connecting part of the present invention; Figure 5 This is a schematic diagram of the structure of the lower counterweight and the upper counterweight of the present invention; Figure 6 This is a schematic diagram of the support mechanism of the present invention; Figure 7 This is a schematic diagram of the counterweight traction component of the present invention; Figure 8 This is a schematic diagram of the structure of the hook loosening assembly of the present invention; Figure 9 for Figure 3 Enlarged view of point A in the middle.

[0019] Explanation of the labels in the diagram: Support mechanism; 101. Carrier plate; 102. Hydraulic cylinder one; 103. Disc support leg; 104. Track wheel; 2. Lifting mechanism; 201. Folding support rod; 202. Hydraulic cylinder two; 203. Frame; 204. Cable reel; 205. Rope; 206. Guide rod; 3. Piling mechanism; 31. Counterweight traction component; 311. Frame; 312. Partition plate; 313. Cylinder; 314. Unloading assembly; 3141. Limit frame; 3142. Lifting plate; 3143. Gripper; 3 144. Spring 1; 3145. Stop; 3146. Connecting column; 3147. Guide groove; 32. Piling component; 321. Connecting part; 322. Boss; 323. Nozzle; 324. Guide frame; 325. Lower counterweight; 326. Hollow frustum; 327. Carrier; 328. Upper counterweight; 329. Spring 2; 330. Column; 331. Disc; 332. Press button; 333. Trigger; 334. Rotating rod; 335. Protruding column; 336. Electric push rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 5 A pile driver with a lifting mechanism includes a support mechanism 1; The lifting mechanism 2 includes a frame 203, which is rotatably mounted on the support mechanism 1. A piling mechanism 3 is slidably mounted on a frame 203, and a lifting mechanism 2 is used to drive the piling mechanism 3 to move up and down along the frame 203. The piling mechanism 3 includes a piling component 32, which includes a connecting part 321, a lower counterweight 325, a carrier frame 327, and an upper counterweight 328. A boss 322 is installed at the upper end of the connecting part 321, and an oil cavity is provided within the boss 322. A nozzle 323 communicating with the oil cavity is installed at the upper end of the boss 322. A guide frame 324 is also installed at the upper end of the connecting part 321. The lower counterweight 325, the carrier frame 327, and the upper counterweight 328 slide sequentially from bottom to top. Mounted on the guide frame 324, the carrier frame 327 is fixedly connected to the guide frame 324 by bolts. A hollow frustum 326 corresponding to the boss 322 is mounted on the lower end of the lower counterweight 325. A cylindrical cavity is provided in the middle of the lower end of the hollow frustum 326. The diameter of the cylindrical cavity is the same as the diameter of the boss 322, and the length of the cylindrical cavity is greater than the length of the boss 322. A second spring 329 is fixedly mounted on the lower end of the upper counterweight 328, and the second spring 329 passes through the carrier frame 327. In the initial state of the equipment, the carrier frame 327 is fixed at the designated position on the guide frame 324, providing limiting support for the upper counterweight 328. The second spring 329 is in a naturally extended state. The hollow frustum 326 of the lower counterweight 325 is sleeved on the outside of the boss 322, and the boss 322 is housed inside the cylindrical cavity of the hollow frustum 326. During pile driving, the entire pile driving mechanism 3 is first lifted upwards by the lifting mechanism 2, so that the bottom of the connecting part 321 is stably connected and fixed with the pile foundation to be constructed, ensuring the coaxiality of the pile foundation and the pile driving component and avoiding pile driving deviation. Then, the lower counterweight block 325 is clamped by the counterweight traction component 31 and lifted upwards at a uniform speed along the guide frame 324. During the upward movement of the lower counterweight block 325, the second spring 329 is gradually squeezed, so that the second spring 329 is continuously compressed and stores force. When the second spring 329 is compressed to its limit stroke, the generated elastic force drives the upper counterweight block 328 to move upwards synchronously along the guide frame 324, completing the double counterweight block force storage action. Then, the lower counterweight 325 is released, and the compressed spring 329 rebounds and releases its elastic force. Combined with the effect of gravity, it drives the lower counterweight 325 and the upper counterweight 328 to descend rapidly in sync. When the upper counterweight 328 falls back and contacts the carrier 327, it stops moving immediately due to the limitation and fixation of the carrier 327, while the lower counterweight 325 continues to descend rapidly due to its own inertia. During this process, the protrusion 322 is gradually inserted into the cylindrical cavity of the hollow truncated cone 326. The sealed air inside the cylindrical cavity is rapidly compressed to form a high-pressure air chamber. When the lower counterweight 325 descends to its limit position, the high-pressure air reaches the preset pressure value, triggering the nozzle 323 to open. The fuel stored inside the oil chamber is sprayed out at high speed through the nozzle 323. The fuel and high-pressure air are fully mixed and instantly ignited, generating a high-pressure deflagration thrust that impacts and pushes the connecting part 321 downward, thereby driving the pile foundation to be buried deep underground. At the same time, the reverse thrust pushes the lower counterweight 325 upward and resets it. This cycle is repeated to achieve continuous reciprocating pile driving operation.Workers can adjust the fixed position of the carrier 327 on the guide frame 324 by disassembling bolts according to construction needs, change the initial installation height of the upper counterweight 328, and then adjust the initial preload and storage stroke of the second spring 329. Under the premise that the initial kinetic energy of the lower counterweight 325 remains unchanged, the periodic rate of the counterweight's reciprocating motion can be changed to precisely adapt to the piling construction needs of different geological conditions and different pile foundations. Compared with traditional single-counterweight piling machines, this invention can change the initial position of the upper counterweight 328 by changing the position of the carrier 327. With a specific initial kinetic energy of the lower counterweight 325, the reciprocating rate of the lower counterweight 325 can be changed, thus flexibly adjusting the piling speed and providing extremely strong adaptability to working conditions. Simultaneously, it adopts a composite power mode combining gravity storage, air compression, and fuel combustion, resulting in strong and concentrated piling power, effectively improving the efficiency of pile penetration and the accuracy of construction compaction, and avoiding problems such as pile displacement and incomplete penetration.

[0022] See Figure 6 By adopting the above technical solution, the support mechanism 1 includes a carrier plate 101, and hydraulic cylinders 102 are fixedly installed at the four corners of the carrier plate 101. Disc supports 103 are fixedly installed at the telescopic ends of the hydraulic cylinders 102. Track wheels 104 are installed on both sides of the carrier plate 101. Before the equipment enters the construction site, it can be driven forward by the track wheels 104. After entering a specific position, the four corner disc support legs 103 can be adjusted by the synchronous start and stop or independent extension and retraction of the four hydraulic cylinders 102 to complete the level and height calibration of the carrier plate 101. For complex construction sites with unevenness, softness and mud, the extension and retraction stroke of the corresponding hydraulic cylinders 102 can be adjusted individually to make the four disc support legs 103 fully in contact with the ground, increase the ground contact area of ​​the equipment, and disperse the vibration pressure generated by the equipment's own weight and pile driving operations, effectively preventing the equipment from tilting or sinking and ensuring the stability of the entire construction process. After the construction is completed, the hydraulic cylinders 102 can be retracted to raise the height of the carrier plate 101, which facilitates the transportation and relocation of the equipment, and improves the site adaptability and equipment mobility.

[0023] The lifting mechanism 2 also includes a folding support rod 201, a second hydraulic cylinder 202, and a cable reel 204. The two ends of the folding support rod 201 are rotatably mounted on the upper end of the carrier plate 101 and the top of the upright frame 203, respectively. The second hydraulic cylinder 202 is movably mounted on one end of the carrier plate 101, and its telescopic end is movably connected to the middle of the upright frame 203. The cable reel 204 is fixedly mounted on the upper end of the carrier plate 101, and its output end is provided with a rope 205. A guide rod 206 is fixedly mounted on the piling mechanism 3, and the piling mechanism 3 is slidably connected to the upright frame 203 through the guide rod 206. One end of the rope 205 passes around the top of the upright frame 203 through multiple fixed pulleys and is fixedly connected to the piling mechanism 3. The upright frame 203 can be rotated and adjusted by the extension and retraction drive of the hydraulic cylinder 202. The folding support rod 201 adjusts synchronously with the rotation of the upright frame 203, providing support for the top of the upright frame 203. The verticality and tilt angle of the upright frame 203 can be precisely adjusted according to the tilt angle of the pile foundation, adapting to various construction conditions such as straight piles and inclined piles. During pile driving, the rope 205 is wound and unwound in both directions by the reel 204. The rope 205 is guided and pulled by the fixed pulley, driving the pile driving mechanism 3 to slide smoothly vertically along the upright frame 203 through the guide rod 206, achieving precise lifting and positioning of the pile driving mechanism 3. At the same time, the guide rod 206 can effectively limit the horizontal deviation of the pile driving mechanism 3, ensuring that the lifting is smooth and without swaying or jamming, greatly improving the accuracy of the pile driving position.

[0024] By adopting the above technical solution, the piling mechanism 3 also includes a counterweight traction component 31, see reference. Figure 4 The counterweight traction component 31 includes a frame 311, a cylinder 313, and a hook release assembly 314. The frame 311 is fixedly installed on the upper end of the piling component 32. A partition 312 is fixedly installed in the middle of the frame 311. The cylinder 313 is fixedly installed on the upper end of the partition 312, and the hook release assembly 314 is installed on the lower end of the partition 312. The cylinder 313 can drive the hook release assembly 314 to clamp the lower counterweight block 325. The frame 311 provides stable load-bearing support for the cylinder 313 and the hook release assembly 314. The partition 312 realizes the separation of the upper and lower structures, effectively avoiding structural interference and debris jamming during operation, and ensuring the stability of equipment operation. During operation, cylinder 313 can drive hook release component 314 to accurately complete the clamping and releasing actions. During the power storage phase, it stably clamps the lower counterweight 325 and works with lifting mechanism 2 to complete the upward power storage. During the pile driving phase, it quickly releases the counterweight. The entire process is automated and linked, eliminating the need for manual operation, greatly reducing the risk of manual operation, and improving construction efficiency and operational safety.

[0025] See Figure 7 and Figure 8The hook release assembly 314 includes a limiting frame 3141 and a lifting plate 3142. The lifting plate 3142 is slidably installed in the limiting frame 3141. Grippers 3143 are rotatably installed on both sides of the lifting plate 3142. A spring 3144 is installed between the two grippers 3143. A stop block 3145 is fixedly installed at the bottom of the lifting plate 3142 and is located between the two grippers 3143. A connecting column 3146 is fixedly installed at the upper end of the lifting plate 3142 and is fixedly connected to the telescopic end of the cylinder 313. The top of the limiting frame 3141 is provided with a guide groove 3147 that matches the grippers 3143. A column 330 is fixedly installed on the upper end of the lower counterweight 325. The column 330 passes sequentially through the second spring 329, the upper counterweight 328, and the bottom of the frame 311. A disc 331 is fixedly installed on the upper end of the column 330. The position of the disc 331 corresponds to the position between the two grippers 3143. The lower ends of the two grippers 3143 on opposite sides are arc-shaped, and the distance between the two grippers 3143 is smaller than the diameter of the disc 331. During operation, cylinder 313 drives lifting plate 3142 to slide vertically along limit frame 3141 via connecting column 3146. When lifting plate 3142 descends, the lower end of gripper 3143 contacts disc 331 and is squeezed open, and spring 3144 is stretched. When the hook at the bottom of gripper 3143 moves below disc 331, gripper 3143 resets under the elastic force of spring 3144. Cylinder 313 drives lifting plate 3142 to rise, hook acts on disc 331, and lifts lower counterweight 325 upward via column 330. Gripper 3143 rises to guide groove 3147 and continues to rise. The upper end of gripper 3143 slides along guide groove 3147 and is squeezed inward to clamp. Hook moves outward, releasing disc 331. Lower counterweight 325 falls under gravity, completing the initial piling action. The stop block 3145 can limit the retraction stroke of the gripper 3143, preventing over-clamping and achieving stable clamping and limiting. Through the above structural settings, the present invention can quickly complete automatic hook unloading, with strong overall structural linkage, precise and reliable action, no jamming or erroneous action, and ensuring the stability of continuous operation.

[0026] See Figure 9By adopting the above technical solution, the nozzle 323 is an electrically controlled nozzle. A pressing key 332 is provided at the upper end of the connecting part 321, and the pressing key 332 is electrically connected to the nozzle 323. A trigger element 333 is rotatably mounted at the upper end of the connecting part 321, and one end of the trigger element 333 contacts the pressing key 332. A rotating rod 334 and an electric push rod 336 are rotatably mounted at the lower end of the lower counterweight 325. A protrusion 335 corresponding to the position of the trigger element 333 is fixedly mounted at one end of the rotating rod 334. The electric push rod 336 is located on one side of the rotating rod 334, and its telescopic end is rotatably connected to the middle of the rotating rod 334. During equipment operation, the rotating rod 334 can be rotated by the telescopic extension of the electric push rod 336, causing the protrusion 335 to swing, precisely adjusting the distance between the protrusion 335 and the trigger element 333, thus achieving adjustable trigger sensitivity. When the counterweight 325 descends to its limit position, the protruding post 335 precisely presses the trigger 333. The trigger 333 rotates and presses the button 332, instantly opening the electronically controlled nozzle 323. This allows for simultaneous oil injection and ignition after the high-pressure air is compressed to the required level, ensuring precise and controllable triggering timing. After the operation is completed, the electric push rod 336 resets, and the nozzle 323 closes to stop oil injection, effectively avoiding fuel waste and safety hazards. The entire process is electronically controlled and automatically triggered, with rapid response and no errors, making it suitable for continuous piling operations.

[0027] Working principle: Before construction, the equipment is transported to the work site. The support mechanism 1 is activated, and the extension length of the disc support legs 103 is adjusted individually or simultaneously by the hydraulic cylinders 102 at the four corners of the carrier plate 101 to adapt to and level the uneven and muddy ground, so that the four sets of disc support legs 103 are completely in contact with the ground, distributing the weight of the machine body and the vibration of pile driving, and preventing the equipment from sinking or tilting. Then, the hydraulic cylinder 202 of the lifting mechanism 2 is operated to extend and retract, driving the upright frame 203 to rotate. The folding support rods 201 on both sides extend and retract simultaneously to form stable support for the top of the upright frame 203. The angle of the upright frame 203 is adjusted according to the construction requirements to adapt to the operation of straight piles and inclined piles. Then, the rope 205 is wound up and unwound by the cable reel 204 to pull the pile driving mechanism 3 to be lifted as a whole along the guide rod 206, and the connecting part 321 at the bottom of the pile driving component 32 is connected and fixed to the pile foundation to be constructed, ensuring that the pile foundation and the pile driving component 32 are coaxial and avoid displacement. According to the geological conditions and pile foundation specifications, the staff can disassemble the bolts to adjust the fixed position of the upper frame 327 on the guide frame 324, change the initial height of the upper counterweight 328, thereby adjusting the preload and storage stroke of the second spring 329, setting the reciprocating motion cycle of the counterweight and the pile driving speed, and simultaneously controlling the electric push rod 336 at the bottom of the lower counterweight 325 to drive the rotating rod 334 to rotate, adjusting the distance between the protrusion 335 and the trigger 333, and controlling the trigger sensitivity of the electric nozzle 323. When the equipment is in standby mode, the frame 327 supports the upper counterweight 328, the second spring 329 remains in a stretched state, and the hollow frustum 326 of the lower counterweight 325 is sleeved on the outside of the protrusion 322, with the protrusion 322 housed in the cylindrical cavity of the hollow frustum 326.

[0028] After the formal piling operation begins, the cylinder 313 inside the counterweight traction component 31 pushes the connecting column 3146 downward, causing the lifting plate 3142 to move down along the limit frame 3141. The lower end of the gripper 3143 contacts the disc 331 on top of the lower counterweight block 325 and is opened. After the bottom end of the gripper 3143 passes below the disc 331, the spring 3144 rebounds, causing the gripper 3143 to return to its original position and hook the disc 331, completing the clamping of the lower counterweight block 325. Subsequently, in conjunction with the lifting mechanism 2, the lower counterweight block 325 is driven down. The counterweight 325 moves upward at a constant speed along the guide frame 324. During the upward movement, the lower counterweight 325 continuously squeezes the second spring 329, causing it to continuously compress and store force. When the second spring 329 is compressed to its limit stroke, the elastic force drives the upper counterweight 328 to move upward synchronously to complete the double counterweight storage. Then, the cylinder 313 pulls the lifting plate 3142 upward. The upper end of the gripper 3143 slides along the top guide groove 3147 of the limit frame 3141 and is squeezed inward and retracted. The hook disengages from the disc 331 to achieve automatic release. The lower counterweight 325 and the upper counterweight 328 fall rapidly and synchronously under the action of gravity and the rebound force of the spring 329. After the upper counterweight 328 falls back and contacts the carrier 327, it is immediately stopped by the limit. The lower counterweight 325 continues to descend at high speed due to inertia. During the descent, the boss 322 continues to penetrate deeper into the cylindrical cavity of the hollow frustum 326. The sealed air in the cavity is rapidly compressed to form a high-pressure air chamber. When the lower counterweight 325 reaches the lower limit position, the protrusion 335 at the bottom of the lower counterweight 325 squeezes the trigger 333 to rotate and press the button 33. 2. The electronically controlled nozzle 323 is then activated. The fuel stored in the oil chamber of the boss 322 is sprayed out at high speed through the nozzle 323 and fully mixed with high-pressure air before exploding and generating a strong downward thrust to push the connecting part 321 and drive the pile foundation into the ground for deep burial. The reverse thrust generated by the explosion simultaneously lifts the lower counterweight block 325 upward and resets it. The entire process of counterweight clamping, accumulating, releasing, and exploding impact is repeated continuously to complete the continuous pile driving construction. After all the construction is completed, the hydraulic cylinder 102 of the retracting support mechanism 1 lifts the carrier plate 101, and the equipment can be transferred and moved.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A pile driver with a lifting mechanism, characterized in that, include: Supporting structure (1); The lifting mechanism (2) includes a support frame (203) which is rotatably mounted on the support mechanism (1); The piling mechanism (3) is slidably mounted on the upright (203), and the lifting mechanism (2) is used to drive the piling mechanism (3) to move up and down along the upright (203); The piling mechanism (3) includes a piling component (32), which includes a connecting part (321), a lower counterweight (325), a frame (327), and an upper counterweight (328). A boss (322) is installed on the upper end of the connecting part (321), and an oil cavity is provided inside the boss (322). A nozzle (323) communicating with the oil cavity is installed on the upper end of the boss (322), and a guide frame (324) is also installed on the upper end of the connecting part (321). The lower counterweight (325), the carrier (327), and the upper counterweight (328) are slidably installed on the guide frame (324) from bottom to top. The carrier (327) is fixedly connected to the guide frame (324) by bolts. The lower end of the lower counterweight (325) is equipped with a hollow frustum (326) corresponding to the boss (322). The lower end of the upper counterweight (328) is fixedly equipped with a second spring (329). The second spring (329) passes through the carrier (327).

2. A pile driver with a lifting mechanism according to claim 1, characterized in that: The support mechanism (1) includes a carrier plate (101), and hydraulic cylinders (102) are fixedly installed at the four corners of the carrier plate (101). Disc support feet (103) are fixedly installed at the telescopic ends of the hydraulic cylinders (102). Track wheels (104) are installed on both sides of the carrier plate (101).

3. A pile driver with a lifting mechanism according to claim 2, characterized in that: The lifting mechanism (2) also includes a folding support rod (201), a second hydraulic cylinder (202), and a reel (204). The two ends of the folding support rod (201) are rotatably installed on the upper end of the carrier plate (101) and the top of the upright frame (203), respectively. The second hydraulic cylinder (202) is movably installed on one end of the carrier plate (101). The telescopic end of the second hydraulic cylinder (202) is movably connected to the middle of the upright frame (203). The reel (204) is fixedly installed on the upper end of the carrier plate (101). The output end of the reel (204) is provided with a rope (205). The piling mechanism (3) is fixedly installed with a guide rod (206). The piling mechanism (3) is slidably connected to the upright frame (203) through the guide rod (206). One end of the rope (205) passes around the top of the upright frame (203) through multiple fixed pulleys and is fixedly connected to the piling mechanism (3).

4. A pile driver with a lifting mechanism according to claim 1, characterized in that: The piling mechanism (3) further includes a counterweight traction component (31), which includes a frame (311), a cylinder (313), and a hook release assembly (314). The frame (311) is fixedly installed on the upper end of the piling component (32), and a partition (312) is fixedly installed in the middle of the frame (311). The cylinder (313) is fixedly installed on the upper end of the partition (312), and the hook release assembly (314) is installed on the lower end of the partition (312). The cylinder (313) can drive the hook release assembly (314) to clamp the lower counterweight block (325).

5. A pile driver with a lifting mechanism according to claim 4, characterized in that: The hook release assembly (314) includes a limiting frame (3141) and a lifting plate (3142). The lifting plate (3142) is slidably installed in the limiting frame (3141). Grippers (3143) are rotatably installed on both sides of the lifting plate (3142). A spring (3144) is installed between the two grippers (3143). A stop block (3145) is fixedly installed at the bottom of the lifting plate (3142). The stop block (3145) is located between the two grippers (3143). A connecting column (3146) is fixedly installed at the upper end of the lifting plate (3142). The connecting column (3146) is fixedly connected to the telescopic end of the cylinder (313). The top of the limiting frame (3143) is provided with a guide groove (3147) that matches the grippers (3143).

6. A pile driver with a lifting mechanism according to claim 5, characterized in that: A column (330) is fixedly installed on the upper end of the lower counterweight (325). The column (330) passes through the bottom of the second spring (329), the upper counterweight (328), and the frame (311) in sequence. A disc (331) is fixedly installed on the upper end of the column (330). The position of the disc (331) corresponds to the position between the two grippers (3143).

7. A pile driver with a lifting mechanism according to claim 6, characterized in that: The lower ends of the two grippers (3143) on opposite sides are arc-shaped, and the distance between the two grippers (3143) is smaller than the diameter of the disk (331).

8. A pile driver with a lifting mechanism according to claim 1, characterized in that: The nozzle (323) is an electrically controlled nozzle. The upper end of the connecting part (321) is provided with a pressing key (332). The pressing key (332) is electrically connected to the nozzle (323). A trigger (333) is rotatably installed on the upper end of the connecting part (321). One end of the trigger (333) is in contact with the pressing key (332). A rotating rod (334) and an electric push rod (336) are rotatably installed on the lower end of the lower counterweight (325). One end of the rotating rod (334) is fixedly installed with a protrusion (335) corresponding to the position of the trigger (333). The electric push rod (336) is located on one side of the rotating rod (334). The telescopic end of the electric push rod (336) is rotatably connected to the middle part of the rotating rod (334).

9. A pile driver with a lifting mechanism according to claim 1, characterized in that: The hollow frustum (326) has a cylindrical cavity at the middle of its lower end. The diameter of the cylindrical cavity is the same as the diameter of the boss (322), and the length of the cylindrical cavity is greater than the length of the boss (322).

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