A noise reduction device during the hole formation of impact piles

Abstract

The present invention discloses a noise reduction device during the hole formation of impact piles, which includes a hammering structure and a noise reduction structure. The hammering structure is composed of a pile frame, a hammer head, a cylinder, etc., and its attachment plate is provided with insertion connection holes, a shunt liquid path, a telescopic pipe, etc.; the noise reduction structure includes first, second, and third honeycomb hole noise reduction plates, which are connected through a closing belt, a closing slide bar, and a limiting chute, and are provided with components such as a telescopic liquid sac and a linkage insertion tube; during operation, the falling of the hammer head of the impact pile driver drives the noise reduction plates to merge, and the linkage insertion tube triggers the shunt liquid path, enabling the safe liquid to flow, realizing the centering clamping and fixing of steel pipes or concrete pipes, and at the same time using components such as a liquid wheel, a pendulum hammer, and a vibration pipe to reduce noise; during the concrete pouring process, the impact pile driver hammers and pulls out the pipe at the same time, the telescopic liquid sac stretches to generate negative pressure, sucks the safe liquid, drives the pendulum hammer to rotate reciprocally, and uses vibration to remove the concrete cavity. The present invention effectively solves the problem of high noise during the hole formation of impact piles, and improves the hole formation quality and the pile body strength.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a noise reduction device during the hole formation of impact piles. Background Technique

[0002] In the field of construction engineering, with the continuous advancement of urban construction and the growing demand for infrastructure, how to efficiently and stably build a solid foundation has become a key issue. The impact pile, a traditional and classic foundation construction technique, emerged accordingly. It originated in the early days of the construction industry. At that time, lacking advanced large-scale mechanical equipment, people relied on the principle of gravity hammering to drive the pile body into the ground to provide stable support for various buildings. Over time, due to its advantages such as simple process, relatively low cost, and fast construction speed, the impact pile has been widely used in construction projects of different scales and at different times. Its presence can be seen in ordinary residential houses, towering commercial buildings, small bridges, and large port terminals, leaving a significant mark in the long history of construction.

[0003] Currently, when the impact pile uses the hammer-driven pipe-sinking method to form a hole, it is necessary to rely on the impact force of the pile hammer to forcefully sink a steel pipe or a concrete pipe with a pile tip into the soil to form a pile hole. During this construction process, the pile hammer frequently impacts the steel pipe or the concrete pipe, and at the same time, the impact and explosion effect of the impact pile driver itself also continuously occurs. Under the combined action of the two, extremely loud noises will be generated. Such high-intensity noises seriously interfere with the daily lives of the residents around the construction site, bringing them great troubles and adverse effects.

[0004] Therefore, a noise reduction device during the hole formation of impact piles is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a noise reduction device during the hole formation of impact piles to solve the problem of large noises generated during the hole formation of impact piles as mentioned in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A noise reduction device during the hole formation of impact piles, comprising:

[0007] An impact structure, which consists of a pile frame, a hammer head, a cylinder, a plunger, a hammer base, etc.;

[0008] A noise reduction structure, which is arranged on the front and back sides of the impact structure;

[0009] Among them, the impact structure includes an impact pile driver. The lower end of the impact pile driver is connected with an attachment plate through bolts. Plug connection holes are provided on the front and back surfaces of the attachment plate, and one end of each plug connection hole is communicated with a shunt liquid path opened on the same side inside the attachment plate. The lower surface of the attachment plate is connected with a telescopic pipe through bolts at the lower port of the shunt liquid path;

[0010] A valve seat is integrally provided at the position where the insertion connection hole communicates with the shunt liquid path, and the port of the valve seat is movably connected to the valve rod through a valve body spring. The tip of the valve rod is fixed to the trigger rod.

[0011] A liquid wheel is rotatably connected inside the upper end plate of the outermost sleeve of the telescopic tube. The lower shaft end of the liquid wheel is fixed to the telescopic prism rod. The lower end of the telescopic prism rod is fixed to the pendulum inside the innermost sleeve of the telescopic tube. A plurality of vibration tubes are fixedly inserted around the telescopic prism rod at the bottom of the telescopic tube.

[0012] Each interface on the left and right sides of the attachment plate of each shunt liquid path is communicated with a hydraulic interface integrally provided at a position near the upper end of the side surface of the limiting liquid tube through a pipeline. The upper ends of the limiting liquid tubes are respectively connected to the bottom of the attachment plate in a positioning manner through movable connectors. A hydraulic push rod is slidably and sealingly arranged inside the limiting liquid tube, and the lower end of the hydraulic push rod is connected to the lower part of the outer surface of the centering push claw in a positioning manner through a movable connector. The upper surface of the centering push claw is provided with a connecting rotating shaft and is rotatably connected to the double-ear plate on the lower surface of the attachment plate through the rotating shaft.

[0013] The noise reduction structure includes two first honeycomb hole noise reduction plates arranged on the front and rear sides of the pile hammer. On the opposite surfaces of the two first honeycomb hole noise reduction plates, linkage insertion tubes are fixedly provided at the positions corresponding to the insertion connection holes. Symmetrically fixed below the front side or the rear side of the two first honeycomb hole noise reduction plates are telescopic sliders, which are slidably and limitedly arranged in the limiting sliding grooves on the inner side surface of the second honeycomb hole noise reduction plate. The lower ends of the telescopic sliders are fixedly provided with telescopic liquid sacs inside the limiting sliding grooves on the inner side surface of the second honeycomb hole noise reduction plate, and the lower ends of the telescopic liquid sacs are fixed to the bottom of the limiting sliding grooves on the inner side surface of the second honeycomb hole noise reduction plate. A compensation tube is fixed above the telescopic liquid sac, and a one-way valve group is assembled at the lower port of the compensation tube.

[0014] Preferably, the shunt liquid path has two branches. Among them, one branch extends to the adjacent side on the same side and penetrates the attachment plate, and an interface is assembled at the through hole. The other branch extends to the middle position of the attachment plate and penetrates the attachment plate after communicating downward with the shunt liquid path extending toward the opposite side.

[0015] Preferably, the valve rod is in a gyroscopic structure. Initially, the tip of the valve rod is hermetically plugged inside the valve seat, and liquid holes for the flow of safety liquid are provided on the surface of the valve rod.

[0016] Preferably, the telescopic tube is a multi-layer sleeve structure, and each layer of sleeve ring is in a sliding and sealing connection. One end of the vibration tube located inside the innermost sleeve of the telescopic tube is open, and one end located outside the telescopic tube is closed. Oscillation springs are fixedly arranged inside the vibration tubes in cooperation with fixing frames. The oscillation springs have the ability to swing freely inside the vibration tubes, and the pendulum will strike the surface of the oscillation springs when rotating.

[0017] Preferably, the inner side paths of the two first honeycomb hole noise reduction plates facing the pile hammer are both set according to the outer contour of the pile hammer, and a closing slide bar is fixedly arranged on the upper surface of the first honeycomb hole noise reduction plate. The closing slide bar is slidably limited in the limiting slideway opened on the lower surface of the top plate, and thus the sliding connection between the top plate and the first honeycomb hole noise reduction plate is realized. Closing belts are fixedly arranged at the middle upper positions on the left and right sides of the concave surfaces of the two first honeycomb hole noise reduction plates, and the front and rear first honeycomb hole noise reduction plates are movably connected together through the closing belts. Pressing rods for pressing down the closing belts are fixedly arranged on the left and right sides of the pile hammer above the closing belts.

[0018] Preferably, the end of the linkage insertion tube is set as a piston end, and a grid frame for pushing against the trigger rod is fixedly arranged at the port of the linkage insertion tube.

[0019] Preferably, a designated open through hole is opened at the upper end of the telescopic liquid sac, a liquid path for communicating the linkage insertion tube with the telescopic liquid sac is opened inside the first honeycomb hole noise reduction plate, and a spring is sleeved outside the one-way valve group inside the telescopic liquid sac.

[0020] Preferably, the second honeycomb hole noise reduction plate is movably connected inside the third honeycomb hole noise reduction plate with the same connection structure as that between the first honeycomb hole noise reduction plate and the second honeycomb hole noise reduction plate. The liquid path opened at the upper end of the telescopic liquid sac inside the third honeycomb hole noise reduction plate is communicated with the lower end of the telescopic liquid sac inside the second honeycomb hole noise reduction plate. Closing slide bars are also fixedly arranged at the lower ends of the third honeycomb hole noise reduction plates, and are slidably limited in cooperation with the limiting slideways opened on the surface of the base, and thus the sliding connection of the third honeycomb hole noise reduction plates on the upper surface of the base is carried out. Electric push rods are respectively fixedly arranged at one port of each of the front and rear limiting slideways on the front and rear side surfaces of the base, and the output ends of the electric push rods are fixed to one end of the closing slide bar on the lower surface of the third honeycomb hole noise reduction plate. The base is a cross-shaped plate body module, and two auxiliary telescopic rods are fixedly arranged on the upper surfaces of the front and rear plates of the base, and the upper ends of the auxiliary telescopic rods are respectively fixed to the lower surface of the same-side top plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. By designing a noise reduction structure, during the process of forming a hole by hammering a pile, the first honeycomb hole noise reduction plate, the second honeycomb hole noise reduction plate, and the third honeycomb hole noise reduction plate can effectively absorb and isolate the noise generated by hammering, greatly reducing the interference of construction noise on the daily life of surrounding residents, reducing noise pollution, and improving the friendliness of the construction environment;

[0023] 2. By designing a mechanism in which the hammering structure and the noise reduction structure work together, when the hammer head drops and drives the noise reduction plate to move downward to compress the telescopic liquid sac, the safe liquid flow pushes the hydraulic push rod, enabling the centering pawl to perform centering clamping and fixing on the steel pipe or concrete pipe, ensuring the perpendicularity and stability of the pile body during hammering, improving the hole forming quality, and avoiding the influence of pile body inclination on the stability of the building foundation.

[0024] 3. In the concrete pouring process of the present invention, during the process of hammering and pipe extraction by the hammering pile driver, the negative pressure generated by the stretching of the telescopic liquid sac sucks the safe liquid, causing the liquid wheel to drive the pendulum hammer to rotate reciprocally and strike the swing spring, spreading the vibration into the concrete, which can effectively remove the cavities existing in the middle area of the concrete, improve the uniformity and mixing degree of the concrete, and further enhance the strength and durability of the pile body, ensuring the overall quality of the construction project. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structure view of the present invention;

[0026] Figure 2 It is an exploded view of the structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the hammering structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the attachment plate and its connection structure of the present invention;

[0029] Figure 5 It is a cross-section of the attachment plate and its connection structure of the present invention Figure 1 ;

[0030] Figure 6 It is a cross-section of the attachment plate and its connection structure of the present invention Figure 2 ;

[0031] Figure 7 It is a cross-section of the attachment plate and its connection structure of the present invention Figure 3 ;

[0032] Figure 8 It is an exploded view of the noise reduction structure of the present invention;

[0033] Figure 9 It is a cross-sectional view of the noise reduction structure of the present invention;

[0034] Figure 10 It is a schematic diagram of the base and its connection structure of the present invention;

[0035] Figure 11 It is of the present invention Figure 5 Enlarged view of part A;

[0036] Figure 12 It is of the present invention Figure 11Enlarged view at position B

[0037] In the figure:

[0038] 1. Hammering structure

[0039] 11. Hammering pile driver

[0040] 12. Attachment plate; 121. Insertion connection hole; 1211. Valve seat; 1212. Valve rod; 1213. Trigger rod; 1214. Valve body spring; 122. Diverting liquid path; 123. Telescopic tube; 1231. Liquid wheel; 1232. Telescopic prism rod; 1233. Swing hammer; 1234. Oscillating tube; 1235. Swing oscillation spring

[0041] 13. Limiting liquid tube; 131. Hydraulic interface; 132. Hydraulic push rod; 133. Centering push claw

[0042] 2. Noise reduction structure

[0043] 21. First honeycomb hole noise reduction plate; 211. Closing slide bar; 212. Closing belt; 213. Telescopic slider; 214. Linkage insertion tube

[0044] 22. Second honeycomb hole noise reduction plate

[0045] 23. Third honeycomb hole noise reduction plate

[0046] 24. Base; 241. Limiting slideway; 242. Electric push rod; 243. Auxiliary telescopic rod; 244. Top plate

[0047] 25. Telescopic liquid sac; 251. Compensation tube; 252. Check valve group Detailed implementation mode

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figures 1 to 12 , the present invention provides a technical solution for a noise reduction device during hammering pile hole formation:

[0050] A noise reduction device during hammering pile hole formation, comprising:

[0051] The hammering structure 1, which is composed of a pile frame, a hammer head, a cylinder, a plunger, a hammer base, etc.;

[0052] The noise reduction structure 2, which is arranged on the front and back sides of the hammering structure 1;

[0053] Among them, the hammering structure 1 includes a hammering pile driver 11. The lower end of the hammering pile driver 11 is connected with an attachment plate 12 by bolts. Insertion connection holes 121 are symmetrically arranged at the upper positions on the front and rear surfaces of the attachment plate 12. And the ends of the insertion connection holes 121 located inside the attachment plate 12 are all communicated with a flow-dividing liquid path 122 arranged on the same side inside the attachment plate 12. The flow-dividing liquid path 122 has two branches. Among them, one branch extends to the adjacent side surface on the same side and penetrates the attachment plate 12, and an interface is assembled at the through hole. The other branch extends to the middle position of the attachment plate 12, and after communicating with the flow-dividing liquid path 122 extending towards the opposite side, it penetrates the attachment plate 12. And the lower surface of the attachment plate 12 is connected with a telescopic pipe 123 by bolts at the lower port of the flow-dividing liquid path 122;

[0054] A valve seat 1211 is integrally arranged at the position where the insertion connection hole 121 is communicated with the flow-dividing liquid path 122. A spindle-shaped pore is arranged inside the valve seat 1211. And the port of the pore communicated with the flow-dividing liquid path 122 is movably connected with a valve rod 1212 through a plurality of valve body springs 1214. The valve rod 1212 is a gyro-shaped structure. And initially, the tip of the valve rod 1212 seals and plugs inside the valve seat 1211. And liquid holes for the flow of safety liquid are arranged on the surface of the valve rod 1212. The tip of the valve rod 1212 passes through the valve seat 1211 and is fixed to a trigger rod 1213 located inside the insertion connection hole 121. The trigger rod 1213 is a T-shaped rod body;

[0055] The interfaces of each flow-dividing liquid path 122 on the left and right side surfaces of the attachment plate 12 are all communicated with a hydraulic interface 131 integrally arranged at a position close to the upper end on the side surface of a limiting liquid pipe 13 through pipelines. The upper ends of the limiting liquid pipes 13 are all positioned and connected to the bottom of the attachment plate 12 by means of movable connectors. A hydraulic push rod 132 is slidably and sealingly arranged inside the limiting liquid pipe 13. And the lower end of the hydraulic push rod 132 is positioned and connected to the lower part of the outer surface of a centering push claw 133 by means of a movable connector. The upper surface of the centering push claw 133 is provided with a connecting rotating shaft, and is rotationally connected to the double-ear plate on the lower surface of the attachment plate 12 through the rotating shaft;

[0056] The noise reduction structure 2 includes two first honeycomb hole noise reduction plates 21 arranged on the front and rear sides of the pile hammer 11. The paths of the inner sides of the two first honeycomb hole noise reduction plates 21 facing the pile hammer 11 are set according to the outer contour of the pile hammer 11. A closing slide bar 211 is fixedly arranged on the upper surface of the first honeycomb hole noise reduction plate 21. The closing slide bar 211 is slidably limited within a limiting slideway 241 opened on the lower surface of the top plate 244, thereby realizing the sliding connection between the top plate 244 and the first honeycomb hole noise reduction plate 21. Closing belts 212 are fixedly arranged at the middle upper positions on the left and right sides of the concave surface of the first honeycomb hole noise reduction plate 21, and the front and rear first honeycomb hole noise reduction plates 21 are movably connected together through the closing belts 212. Pressing rods for pressing down the closing belts 212 are fixedly arranged on the left and right sides of the pile hammer 11 above the closing belts 212. Linkage insertion pipes 214 are fixedly arranged at the positions corresponding to the insertion holes 121 on the facing surfaces of the two first honeycomb hole noise reduction plates 21. The end of the linkage insertion pipe 214 is set as a piston end. A net rack for pushing against the trigger rod 1213 is fixedly arranged at the port of the linkage insertion pipe 214. Retractable sliders 213 with a racket-shaped cross-section are symmetrically and fixedly arranged below the front or rear side of the first honeycomb hole noise reduction plate 21. The first honeycomb hole noise reduction plate 21 is slidably limited in a limiting chute opened on the inner side surface of the second honeycomb hole noise reduction plate 22 in cooperation with the retractable sliders 213. A retractable liquid sac 25 is fixedly arranged at the lower end of the retractable slider 213 inside the limiting chute on the inner side surface of the second honeycomb hole noise reduction plate 22. The lower end of the retractable liquid sac 25 is fixed to the bottom of the limiting chute on the inner side surface of the second honeycomb hole noise reduction plate 22. A limiting space for storing the compressed retractable liquid sac 25 is reserved in the limiting chute. A compensation pipe 251 is fixed above the inside of the retractable liquid sac 25. The compensation pipe 251 is set as a piston structure. A one-way valve group 252 is assembled at the lower port of the compensation pipe 251, and the opening directions of the one-way valve group 252 are opposite. A designated opening through-hole is opened at the upper end of the retractable liquid sac 25. A liquid path for connecting the linkage insertion pipe 214 and the retractable liquid sac 25 is opened inside the first honeycomb hole noise reduction plate 21. A spring is sleeved outside the one-way valve group 252 inside the retractable liquid sac 25. The second honeycomb hole noise reduction plate 22 is movably connected inside the third honeycomb hole noise reduction plate 23 with the same connection structure as that between the first honeycomb hole noise reduction plate 21 and the second honeycomb hole noise reduction plate 22. The liquid path opened at the upper end of the retractable liquid sac 25 inside the third honeycomb hole noise reduction plate 23 is communicated with the lower end of the retractable liquid sac 25 inside the second honeycomb hole noise reduction plate 22. The opening pressure of the one-way valve group 252 inside the second honeycomb hole noise reduction plate 22 is less than the opening pressure of the one-way valve group 252 inside the third honeycomb hole noise reduction plate 23. A closing slide bar 211 is also fixedly arranged at the lower end of the third honeycomb hole noise reduction plate 23, and it is slidably limited in cooperation with the limiting slideway 241 opened on the surface of the base 24, thereby realizing the sliding connection of the third honeycomb hole noise reduction plate 23 on the upper surface of the base 24.The front and rear sides of the base 24 are respectively fixed with an electric push rod 242 at one of the ports of the front and rear limiting slideways 241, and the output end of the electric push rod 242 is fixed to one end of the closing slide bar 211 on the lower surface of the third honeycomb hole noise reduction plate 23. The base 24 is a cross-shaped plate module, and the base 24 is fixed with two auxiliary telescopic rods 243 on the upper surfaces of the front and rear plates, and the upper ends of the auxiliary telescopic rods 243 are respectively fixed to the lower surface of the top plate 244 on the same side. The surface of the base 24 is directly facing the hammer pile driver 11 and is provided with a through hole that can meet the requirements of hammer pile drilling.

[0057] During operation, the hammer head of the pile driver 11 is separated from the hook of the lifting equipment, and the closing belt 212 is pressed down by the pressure rod under the action of gravity. The closing belt 212 drives the first, second and third honeycomb hole noise reduction plates to move toward each other and merge along the limited slide groove. At this time, the electric push rod 242 assists the third honeycomb hole noise reduction plate 23 to move, and the linkage plug-in hole 214 is inserted into the plug-in hole 121 to push the trigger rod 1213 to move out, connecting the plug-in hole 121 with the shunt liquid path 122. As the hammer head falls, the merged first honeycomb hole noise reduction plate 21 moves down, compressing the telescopic liquid bag 25, and the safety liquid passes through the one-way valve group 252, the compensation pipe 251, the linkage plug-in pipe 214, the plug-in hole 121 and the shunt liquid path 122, respectively Enter the limited liquid pipe 13 and the telescopic pipe 123, and the liquid entering the limited liquid pipe 13 pushes the hydraulic push rod 132 to drive the The middle push claw 133 fixes the steel pipe or concrete pipe to ensure the verticality and stability during hammering; the liquid entering the telescopic tube 123 drives the liquid wheel 1231 to rotate, driving the pendulum 1233 to hit the pendulum spring 1235, and the vibration is diffused into the tube through the vibration tube 1234, while pushing the telescopic tube 123 to extend outward. The above process is repeated for each hammering, and the honeycomb hole noise reduction plate absorbs and isolates the hammering noise. As the steel pipe or concrete pipe sinks, the first honeycomb hole noise reduction plate 21 first shrinks into the second honeycomb hole noise reduction plate 22, and the two then move down along the third honeycomb hole noise reduction plate 23 until the designed depth is reached to form a pile hole. At this time, the three-layer noise reduction plate shrinks, and the internal telescopic liquid bag 25 is compressed. Because the opening pressure of the one-way valve group 252 in the second honeycomb hole noise reduction plate 22 is smaller, the first honeycomb hole noise reduction plate 21 shrinks into it first.

[0058] In summary, by designing the noise reduction structure 2, during the process of forming a hole by impact piling, the first honeycomb hole noise reduction plate 21, the second honeycomb hole noise reduction plate 22, and the third honeycomb hole noise reduction plate 23 can effectively absorb and isolate the noise generated by hammering, greatly reducing the interference of construction noise on the daily life of surrounding residents, reducing noise pollution, and enhancing the friendliness of the construction environment. At the same time, through the mechanism of the collaborative work of the hammering structure 1 and the noise reduction structure 2, when the hammer head of the impact piling machine 11 drops to drive the noise reduction plate to move downward and compress the telescopic liquid sac 25, the safety liquid flows to push the hydraulic push rod 132, enabling the centering pawl 133 to perform centering clamping and fixing on the steel pipe or concrete pipe, ensuring the verticality and stability of the pile body during hammering, improving the hole forming quality, and avoiding the inclination of the pile body from affecting the stability of the building foundation.

[0059] As an embodiment of the present invention, as Figure 5 , Figure 11 and Figure 12 shown, the telescopic pipe 123 is a multi-layer sleeve structure, and each layer of sleeve ring is in sliding seal connection. Inside the upper end plate of the outermost sleeve of the telescopic pipe 123, a middle-shaped channel is opened, and a liquid wheel 1231 is rotatably connected inside the channel in cooperation with a bearing frame. The lower shaft end of the liquid wheel 1231 is fixed to a telescopic prism rod 1232 arranged inside the innermost sleeve of the telescopic pipe 123. The telescopic prism rod 1232 is a telescopic rod that can only perform linear telescoping and cannot rotate, and the lower end is fixed to a pendulum hammer 1233 inside the innermost sleeve of the telescopic pipe 123. At the bottom of the innermost sleeve of the telescopic pipe 123, a plurality of vibration pipes 1234 are inserted and fixedly arranged around the telescopic prism rod 1232. One end of the vibration pipe 1234 located inside the innermost sleeve of the telescopic pipe 123 is open, and the end located outside the telescopic pipe 123 is closed. Inside each vibration pipe 1234, a pendulum vibration spring 1235 is fixedly arranged in cooperation with a fixed frame, and the pendulum vibration spring 1235 has the ability to swing freely inside the vibration pipe 1234, and the pendulum hammer 1233 will strike the surface of the pendulum vibration spring 1235 when rotating.

[0060] During operation, after the pile hole is formed, concrete is poured through the material discharge opening on the side of the pipe. The impact piling machine 11 hammers and pulls out the pipe for compaction while hammering. The upward movement of the impact piling machine 11 drives the first honeycomb hole noise reduction plate 21 to move upward, stretching the telescopic liquid sac 25 to form a negative pressure, sucking the safety liquid in the telescopic pipe 123, causing it to contract. The flowing safety liquid impacts the liquid wheel 1231, causing it to continuously rotate forward and backward, driving the pendulum hammer 1233 to rotate reciprocally and strike the pendulum vibration spring 1235. The vibration spreads into the concrete to remove air bubbles and improve the uniformity and mixing degree until the pile is formed.

[0061] In summary, through the settings of the hammering structure 1 and the noise reduction structure 2, during the concrete pouring process, when the hammering pile driver 11 hammers and pulls out the pipe at the same time, the negative pressure generated by the stretching of the telescopic liquid sac 25 sucks the safety liquid, causing the liquid wheel 1231 to drive the pendulum hammer 1233 to rotate reciprocally, hitting the pendulum vibration spring 1235, and spreading the vibration into the concrete, which can effectively remove the cavities existing in the middle area of the concrete, improve the uniformity and mixing degree of the concrete, and thus enhance the strength and durability of the pile body, ensuring the overall quality of the construction project.

[0062] Working principle: During operation, first, the base 24 is arranged at the position of the hammer pile hole, and the weight is applied so that the through hole on the surface of the base 24 is opposite to the hole point of the hammer pile hole, and then the transportation equipment is started to move the hammer pile driver 11 to the position of the base 24, so that the hammer pile driver 11 is suspended directly above the base 24, and then the lifting system is started, and the hammer pile driver 11 is placed between the first honeycomb hole noise reduction plate 21 by the lifting system, and then the steel pipe or concrete pipe is lifted and pulled to the bottom of the hammer pile driver 11 by the auxiliary lifting machine, and inserted into the inner ring tube at the bottom of the attached plate 12 between the centering push claw 133 and the telescopic tube 123. If the steel pipe or concrete pipe will affect the telescopic tube 123, a protective ring plate can be added on the outer ring side of the telescopic tube 123, and then The steel pipe or concrete pipe is transferred with manual assistance so that the lower end of the steel pipe or concrete pipe is inserted into the hammer hole on the surface of the base 24, and then the hammer pile driver 11 can be started to perform the hammer pile hole forming work. First, the hammer head of the hammer pile driver 11 will be separated from the hook of the lifting equipment, and then the hammer head will press down the closing belt 212 in cooperation with the pressure rods set on the left and right sides under the action of gravity, and then the closing belt 212 will pull the first honeycomb hole noise reduction plate 21 and the second honeycomb hole noise reduction plate 22 and the third honeycomb hole noise reduction plate 23 connected to the first honeycomb hole noise reduction plate 21 to move toward each other along the limited slideway 241 on the surface of the top plate 244 and the base 24 with the assistance of the closing slide bar 211, and merge together. At this time, the electric push rod 242 will assist under the control of the control end of the hammer pile driver 11 The third honeycomb hole noise reduction plate 23 moves to better complete the merging, and the linkage insert tube 214 will also be slidably sealed and inserted into the inside of the plug-in hole 121 from the expanded port of the plug-in hole 121. The linkage insert tube 214 inserted into the plug-in hole 121 will push the trigger rod 1213 to move out from the inside of the valve seat 1211, and release the closed state of the shunt liquid path 122, so that the plug-in hole 121 is connected with the shunt liquid path 122. Then, as the hammer head of the hammer pile driver 11 continues to fall to the first hammering of the hammer pile driver 11, the hammer pile driver 11 will synchronously drive the merged first honeycomb hole noise reduction plate 21 to move downward, and the downward-moving first honeycomb hole noise reduction plate 21 will cooperate with the telescopic slider 213 to compress the telescopic liquid capsule 25, and the compressed telescopic liquid capsule 25 inside The safety liquid will break through the opening pressure of the one-way valve group 252, and enter the interior of the compensation pipe 251 through the one-way valve group 252, and then enter the linkage plug 214 along the compensation pipe 251, and finally enter the interior of the limiting liquid pipe 13 and the telescopic pipe 123 through the linkage plug 214 through the plug hole 121 and the shunt liquid path 122. Among them, the safety liquid entering the limiting liquid pipe 13 will push the hydraulic push rod 132 to output, and the output hydraulic push rod 132 will push the centering push claw 133, so that it is hydraulically pushed on the peripheral side of the steel pipe or concrete pipe, and the steel pipe or concrete pipe is clamped and fixed in the center, so as to ensure the verticality and stability of the steel pipe or concrete pipe during hammering. At the same time, the safety liquid entering the telescopic pipe 123 will flow through the liquid wheel 1231,And it drives the liquid wheel 1231 to rotate. The rotating liquid wheel 1231 will drive the pendulum 1233 to rotate through the telescopic prism rod 1232. Then the pendulum 1233 will hit the side of the pendulum vibration spring 1235, causing the pendulum vibration spring 1235 to vibrate. The vibrating pendulum vibration spring 1235 will directly conduct the vibration to the vibration pipe 1234 and diffuse it into the steel pipe or the concrete pipe through the vibration pipe 1234. And the safe liquid passing through the liquid wheel 1231 will enter the innermost pipe of the telescopic pipe 123 and push the telescopic pipe 123 to slide and extend outward. As the telescopic pipe 123 extends, the telescopic prism rod 1232 will extend synchronously. The above process will occur during each hammer strike, and the noise generated by the hammer strike will be absorbed and isolated by the first honeycomb hole noise reduction plate 21, the second honeycomb hole noise reduction plate 22, and the third honeycomb hole noise reduction plate 23, so as to reduce the impact of the noise. In addition, as the steel pipe or the concrete pipe gradually sinks underground, after the first honeycomb hole noise reduction plate 21 is compressed into the second honeycomb hole noise reduction plate 22, the first honeycomb hole noise reduction plate 21 and the second honeycomb hole noise reduction plate 22 will move downward along the third honeycomb hole noise reduction plate 23 under the action of the pile hammer 11 until the designed depth is reached to form a pile hole. At this time, the first honeycomb hole noise reduction plate 21, the second honeycomb hole noise reduction plate 22, and the third honeycomb hole noise reduction plate 23 contract together, and the telescopic liquid sac 25 inside the second honeycomb hole noise reduction plate 22 and the third honeycomb hole noise reduction plate 23 will be compressed. Also, because the opening pressure of the one-way valve group 252 inside the second honeycomb hole noise reduction plate 22 is less than the opening pressure of the one-way valve group 252 inside the third honeycomb hole noise reduction plate 23, when the first honeycomb hole noise reduction plate 21 moves downward, it will preferentially compress the first honeycomb hole noise reduction plate 21 into the second honeycomb hole noise reduction plate 22, rather than the first honeycomb hole noise reduction plate 21 and the second honeycomb hole noise reduction plate 22 being compressed into the third honeycomb hole noise reduction plate 23 first;

[0063] After the pile hole is formed, concrete can then be evenly poured into the pile hole through the feeding openings reserved on the side of the steel pipe or concrete pipe. During the pouring process, the pile hammering machine 11, in cooperation with the hoisting system, will compact the poured concrete by hammering while pulling out the pipe. During this process, as the pile hammering machine 11 moves upward, it will synchronously drive the first honeycomb hole noise reduction plate 21 to move upward under the action of the linkage inserting pipe 214. Then, the first honeycomb hole noise reduction plate 21 will slide upward along the inner wall of the second honeycomb hole noise reduction plate 22, and during the sliding process, it will traction the expansion liquid sac 25 upward, stretching the expansion liquid sac 25. As the expansion liquid sac 25 is stretched, since there is no replenishment of liquid or other materials inside the expansion liquid sac 25, a negative pressure environment will be generated. Under the negative pressure condition, it will force the one-way valve group 252 to open, and suck the safety liquid injected into the telescopic pipe 123 through the linkage inserting pipe 214, the insertion connection hole 121, and the shunt liquid path 122. As the safety liquid is sucked away, the telescopic pipe 123 will be synchronously tractioned and contracted. At the same time, during the flowing process of the sucked-away safety liquid, it will impact on the surface of the liquid wheel 1231, causing the liquid wheel 1231 to rotate rapidly. Then, the rotating liquid wheel 1231 will also drive the pendulum hammer 1233 to rotate through the telescopic ridge rod 1232. Since the pile hammering machine 11 hammers and pulls out the pipe while pouring, the liquid wheel 1231 will continuously rotate forward and backward, driving the pendulum hammer 1233 to rotate reciprocally. The reciprocally rotating pendulum hammer 1233 will impact on the side of the pendulum vibration spring 1235, causing the pendulum vibration spring 1235 to vibrate. The vibrating pendulum vibration spring 1235 will directly conduct the vibration to the vibration pipe 1234, and spread it to the concrete poured inside the steel pipe or concrete pipe through the vibration pipe 1234, so as to remove the possible air bubbles inside the concrete and improve the uniformity and mixing degree of the concrete. This process will continue during the process of pulling out the pipe and pouring until the pile is formed, and the first honeycomb hole noise reduction plate 21, the second honeycomb hole noise reduction plate 22, and the third honeycomb hole noise reduction plate 23 will also be pulled and tractioned back to the initial state.

[0064] It should be noted that when the pile hammering machine 11 works, the cylinder in its hammering structure 1 pushes the plunger to lift the hammer head to a certain height, enabling the hammer head to accumulate gravitational potential energy. Subsequently, under the combined action of gravity and the cylinder thrust, the hammer head rapidly falls, converting the gravitational potential energy into powerful kinetic energy, and violently hitting the steel pipe or concrete pipe with a pile tip. The pile tip reduces the resistance to soil penetration, and the pile body gradually sinks into the ground under the action of the impact force, squeezing the surrounding soil. With each hammering, the pile body continuously deepens until it reaches the designed depth to form a pile hole; when lowering the steel reinforcement cage, a hollow steel reinforcement cage is selected.

[0065] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device during the hole formation of impact piles, characterized in that, Comprising: A hammering structure (1), which consists of a pile frame, a hammer head, a cylinder, a plunger, and a hammer base; A noise reduction structure (2), which is arranged on the front and rear sides of the hammering structure (1); Among them, the hammering structure (1) includes a hammering pile machine (11), the lower end of the hammering pile machine (11) is connected with an attachment plate (12) by bolts, insertion connection holes (121) are formed on the front and rear surfaces of the attachment plate (12), and one end of each insertion connection hole (121) is communicated with a shunt liquid path (122) formed inside the attachment plate (12). Moreover, a telescopic pipe (123) is connected to the lower surface of the attachment plate (12) by bolts at the lower port of the shunt liquid path (122); A valve seat (1211) is integrally arranged at the position where the insertion connection hole (121) is communicated with the shunt liquid path (122), and a valve rod (1212) is movably connected to the port of the valve seat (1211) by a valve body spring (1214), and the tip of the valve rod (1212) is fixed to a trigger rod (1213); A liquid wheel (1231) is rotatably connected inside the upper end plate of the outermost sleeve of the telescopic pipe (123), the lower shaft end of the liquid wheel (1231) is fixed to a telescopic prism rod (1232), the lower end of the telescopic prism rod (1232) is fixed to a pendulum hammer (1233) inside the innermost sleeve of the telescopic pipe (123), and a plurality of vibration pipes (1234) are fixedly inserted and arranged around the telescopic prism rod (1232) at the bottom of the telescopic pipe (123); The interfaces of each shunt liquid path (122) on the left and right sides of the attachment plate (12) are communicated with hydraulic interfaces (131) arranged on the side surface of a limiting liquid pipe (13) through pipelines. The upper ends of the limiting liquid pipes (13) are movably connected to the bottom of the attachment plate (12). A hydraulic push rod (132) is slidably arranged inside the limiting liquid pipe (13), and the lower end of the hydraulic push rod (132) is movably connected to the lower part of the outer surface of a centering push claw (133), and the upper claw end of the centering push claw (133) is rotatably connected to the attachment plate (12); The noise reduction structure (2) includes two first honeycomb hole noise reduction plates (21) arranged on the front and rear sides of the hammering pile machine (11). Linkage insertion pipes (214) are fixedly arranged at the positions corresponding to the insertion connection holes (121) on the opposite surfaces of the two first honeycomb hole noise reduction plates (21). Telescopic sliders (213) are symmetrically and fixedly arranged below the front side or the rear side of the two first honeycomb hole noise reduction plates (21), and are slidably limited in the limiting sliding grooves on the inner side surface of a second honeycomb hole noise reduction plate (22). The lower ends of the telescopic sliders (213) are fixedly provided with telescopic liquid sacs (25) inside the limiting sliding grooves on the inner side surface of the second honeycomb hole noise reduction plate (22), and the lower ends of the telescopic liquid sacs (25) are fixed to the bottom of the limiting sliding grooves on the inner side surface of the second honeycomb hole noise reduction plate (22). A compensation pipe (251) is fixed above the inside of the telescopic liquid sac (25), and a one-way valve group (252) is assembled at the lower port of the compensation pipe (251); The second honeycomb hole noise reduction plate (22) is movably connected inside the third honeycomb hole noise reduction plate (23) with the same connection structure as that of the first honeycomb hole noise reduction plate (21) and the second honeycomb hole noise reduction plate (22), and the upper end of the telescopic liquid sac (25) inside the third honeycomb hole noise reduction plate (23) is communicated with the lower end of the telescopic liquid sac (25) inside the second honeycomb hole noise reduction plate (22) through a liquid path provided by matching.

2. The noise reduction device during the hole formation of the hammer-driven pile according to claim 1, characterized in that: The shunt liquid path (122) has two branches. Among them, one branch extends to and penetrates the attachment plate (12) towards the adjacent side surface on the same side, and an interface is assembled at the through hole. The other branch extends to the middle position of the attachment plate (12), and penetrates the attachment plate (12) after being communicated downward with the shunt liquid path (122) extending towards the opposite side.

3. The noise reduction device during hammer-driven pile hole formation according to claim 1, wherein: The valve stem (1212) has a gyro-shaped structure. Initially, the tip of the valve stem (1212) is hermetically plugged inside the valve seat (1211), and liquid holes for the flow of safety liquid are provided on the surface of the valve stem (1212).

4. A noise reduction device during the hole formation of a hammer-driven pile according to claim 1, characterized in that: The telescopic tube (123) has a multi-layer sleeve structure, and each layer of sleeve ring is connected by sliding seal. One end of the vibration tube (1234) located inside the innermost layer of the telescopic tube (123) is open, and the end located outside the telescopic tube (123) is closed. A swing spring (1235) is fixedly arranged inside the vibration tube (1234) in cooperation with a fixing frame. The swing spring (1235) has the ability to swing freely inside the vibration tube (1234), and the pendulum (1233) will hit the surface of the swing spring (1235) when rotating.

5. The noise reduction device during the hole formation of a hammer-driven pile according to claim 1, characterized in that: The inner side paths of the two first honeycomb hole noise reduction plates (21) facing the pile hammer (11) are both set according to the outer contour of the pile hammer (11). A closing slide bar (211) is fixedly arranged on the upper surface of the first honeycomb hole noise reduction plate (21). The closing slide bar (211) is slidably limited in the limiting slide way (241) opened on the lower surface of the top plate (244), and thus the sliding connection between the top plate (244) and the first honeycomb hole noise reduction plate (21) is realized. Closing belts (212) are fixedly arranged at the middle upper positions on the left and right sides of the concave surfaces of the two first honeycomb hole noise reduction plates (21), and the front and rear first honeycomb hole noise reduction plates (21) are movably connected together through the closing belts (212). Pressing rods for pressing down the closing belts (212) are fixedly arranged on the left and right side surfaces of the pile hammer (11) above the closing belts (212).

6. The noise reduction device during hammer-driven pile hole formation according to claim 1, wherein: The end of the linkage insertion tube (214) is set as a piston end, and a net rack that pushes against the trigger rod (1213) is fixedly arranged at the port of the linkage insertion tube (214).

7. A noise reduction device during hammer-driven pile hole formation according to claim 1, characterized in that: The upper end of the telescopic liquid sac (25) is provided with a designated open through hole. A liquid path for communicating the linkage insertion tube (214) with the telescopic liquid sac (25) is opened inside the first honeycomb hole noise reduction plate (21), and a spring is sleeved outside the one-way valve group (252) inside the telescopic liquid sac (25).

8. A noise reduction device during hammer-driven pile hole formation according to claim 1, characterized in that: The lower end of the third honeycomb hole noise reduction plate (23) is also fixedly provided with a closing slide bar (211), and it is slidably limited by cooperating with the closing slide bar (211) and the limiting slide way (241) opened on the surface of the base (24), and thus the third honeycomb hole noise reduction plate (23) is slidably connected to the upper surface of the base (24). One electric push rod (242) is respectively fixedly provided at one port of the front and rear side surfaces of the base (24) in each of the front and rear two limiting slide ways (241), and the output end of the electric push rod (242) is fixed to one end of the closing slide bar (211) on the lower surface of the third honeycomb hole noise reduction plate (23). The base (24) is a cross-shaped plate module, and two auxiliary telescopic rods (243) are respectively fixedly provided on the upper surfaces of the front and rear two plates of the base (24), and the upper ends of the auxiliary telescopic rods (243) are respectively fixed to the lower surfaces of the same-side top plates (244).

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