Noise reduction device for hammering pile hole forming

Abstract

The noise reduction device comprises a hammering structure and a noise reduction structure, the hammering structure is composed of a pile frame, a hammer head, an air cylinder and the like, and an attaching plate of the hammering structure is provided with an insertion connecting hole, a flow dividing liquid path, a telescopic pipe and the like; the noise reduction structure comprises a first honeycomb hole noise reduction plate, a second honeycomb hole noise reduction plate and a third honeycomb hole noise reduction plate which are connected through a closing belt, a closing sliding strip and a limiting sliding groove and provided with a telescopic liquid bag, a linkage insertion pipe and other components. During working, the hammer head of the pile hammering machine falls down to drive the noise reduction plates to be combined, the linkage insertion pipe triggers the diversion liquid path, so that safe liquid flows, a steel pipe or a concrete pipe is centered, clamped and fixed, and meanwhile noise is reduced through the hydraulic wheel, the pendulum bob, the vibration pipe and other components; in the concrete pouring link, the pile hammering machine performs hammering and pipe pulling at the same time, the telescopic liquid bag stretches to generate negative pressure, the safe liquid is sucked, the pendulum bob is driven to rotate in a reciprocating mode, and a concrete cavity is removed through vibration, the problem that noise is large during pile hammering hole forming is effectively solved, and the hole forming quality and the pile body strength are improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a noise reduction device for hammering pile holes. Background Art

[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 traditional and classic foundation construction technology of hammer piles came into being. It originated in the early days of the construction industry. At that time, there was a lack of advanced large-scale machinery and equipment. People used the principle of gravity hammering to drive piles into the ground to provide solid support for various buildings. After years of precipitation, hammer piles have been widely used in construction projects of different periods and scales due to their simple process, relatively low cost and fast construction speed. From ordinary houses to towering commercial buildings, from small bridges to large port terminals, hammer piles can be seen, leaving a strong mark in the long history of construction.

[0003] At present, when hammer piles are drilled using the hammer pipe sinking method, the impact force of the pile hammer is used to force the steel pipe or concrete pipe with the pile tip into the soil to form a pile hole. During this construction process, the pile hammer frequently collides with the steel pipe or concrete pipe, and the impact and explosion of the hammer pile driver itself also continue to occur. The combined effect of the two will generate extremely loud noise. This high-intensity noise seriously interferes with the daily life of residents around the construction site, causing them great distress and adverse effects.

[0004] Therefore, a noise reduction device for hammering pile holes is proposed. Summary of the invention

[0005] The object of the present invention is to provide a noise reduction device for pile hammering to solve the problem of relatively large noise during pile hammering proposed in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a noise reduction device for hammer pile drilling, comprising: The hammer structure consists of a pile frame, hammer head, cylinder, plunger, hammer seat, etc. Noise reduction structure, arranged on the front and rear sides of the hammer structure; The hammer structure includes a hammer pile driver, the lower end of which is connected to an attachment plate by bolts, the front and rear surfaces of the attachment plate are provided with plug-in holes, and one end of the plug-in holes is connected to a shunt fluid path provided on the same side of the inside of the attachment plate, and the lower surface of the attachment plate is connected to a telescopic tube at the lower end of the shunt fluid path by bolts; A valve seat is integrally provided at the position where the plug-in hole communicates with the diversion fluid path, and the port of the valve seat is movably connected to the valve stem through a valve body spring, and the tip of the valve stem is fixed to the trigger rod; A liquid wheel is rotatably connected inside the upper end plate of the outermost sleeve of the telescopic pipe. 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 a pendulum hammer inside the innermost sleeve of the telescopic pipe. A plurality of vibration pipes are fixedly inserted and arranged around the telescopic prism rod at the bottom of the telescopic pipe. The interfaces on the left and right sides of the attachment plate of each shunt liquid path are communicated with the hydraulic interfaces integrally arranged at the upper position near the side surface of the limiting liquid pipe through pipelines. The upper ends of the limiting liquid pipes are positioned and connected to the bottom of the attachment plate by means of movable connectors. A hydraulic push rod is slidably and sealingly arranged inside the limiting liquid pipe, and the lower end of the hydraulic push rod is positioned and connected to the lower part of the outer surface of the centering push claw by means of a movable connector. The upper surface of the centering push claw is provided with a connected rotating shaft and is rotatably connected to the double-ear plate on the lower surface of the attachment plate through the rotating shaft. 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 pipes are fixedly arranged at the positions corresponding to the insertion holes. Symmetrically fixed on the lower part of 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 pipe is fixed above the telescopic liquid sac, and a one-way valve group is assembled at the lower port of the compensation pipe.

[0007] Preferably, the shunt liquid path has two branches. Among them, one branch extends through the attachment plate to the adjacent side on the same side and is provided with an interface at the through hole, and 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 in the opposite direction on the opposite side.

[0008] Preferably, the valve rod is in a gyroscopic structure. Initially, the tip of the valve rod is sealingly plugged inside the valve seat, and liquid holes for the flow of safety liquid are provided on the surface of the valve rod.

[0009] Preferably, the telescopic pipe is a multi-layer sleeve structure, and each layer of sleeve ring is in a sliding and sealing connection. One end of the vibration pipe inside the innermost sleeve of the telescopic pipe is open, and one end outside the telescopic pipe is closed. A swing vibration spring is fixedly arranged inside the vibration pipe in cooperation with a fixing frame, and the swing vibration spring has the ability to swing freely inside the vibration pipe, and the pendulum hammer will strike the surface of the swing vibration spring when rotating.

[0010] 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 defined 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 upper middle 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.

[0011] Preferably, the end of the linkage insertion tube is set as a piston end, and a net rack that pushes against the trigger rod is fixedly arranged at the port of the linkage insertion tube.

[0012] Preferably, a specified 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.

[0013] 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. A closing slide bar is also fixedly arranged at the lower end of the third honeycomb hole noise reduction plate, and it is slidably defined in the limiting slideway opened on the surface of the base through cooperation with the closing slide bar, and thus the sliding connection of the third honeycomb hole noise reduction plate 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 sides of the base, and the output end of the electric push rod is 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.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 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; 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 center and clamp 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 inclination of the pile body from affecting the stability of the building foundation. 3. During the concrete pouring process of the present invention, when the hammering pile driver hammers and pulls out the pipe simultaneously, 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 pendulum 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, guaranteeing the overall quality of the construction project. Description of the Drawings

[0015] Figure 1 is the three-dimensional structure view of the present invention; Figure 2 is the disassembled structure view of the present invention; Figure 3 is the schematic diagram of the hammering structure of the present invention; Figure 4 is the schematic diagram of the attachment plate and its connection structure of the present invention; Figure 5 is the cross-section of the attachment plate and its connection structure of the present invention Figure 1 ; Figure 6 is the cross-section of the attachment plate and its connection structure of the present invention Figure 2 ; Figure 7 is the cross-section of the attachment plate and its connection structure of the present invention Figure 3 ; Figure 8 is the disassembled structure view of the noise reduction structure of the present invention; Figure 9 is the cross-sectional view of the noise reduction structure of the present invention; Figure 10 is the schematic diagram of the base and its connection structure of the present invention; Figure 11 is of the present invention Figure 5 enlarged view of part A; Figure 12 is of the present invention Figure 11 enlarged view of part B.

[0016] In the figures: 1. Hammering structure; 11. Hammering pile driver; 12. Attachment plate; 121. Insertion connection hole; 1211. Valve seat; 1212. Valve stem; 1213. Trigger rod; 1214. Valve body spring; 122. Diverting liquid path; 123. Telescopic tube; 1231. Liquid wheel; 1232. Telescopic prism rod; 1233. Pendulum; 1234. Oscillating tube; 1235. Oscillation spring; 13. Limiting liquid tube; 131. Hydraulic interface; 132. Hydraulic push rod; 133. Centering push claw; 2. Noise reduction structure; 21. First honeycomb hole noise reduction plate; 211. Closing slide bar; 212. Closing belt; 213. Telescopic slider; 214. Linkage insertion tube; 22. Second honeycomb hole noise reduction plate; 23. Third honeycomb hole noise reduction plate; 24. Base; 241. Limiting chute; 242. Electric push rod; 243. Auxiliary telescopic rod; 244. Top plate; 25. Telescopic liquid sac; 251. Compensation tube; 252. Check valve group. Specific implementation mode

[0017] 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.

[0018] Please refer to Figures 1 to 12 , the present invention provides a technical solution for a noise reduction device during the hole formation of a hammer-driven pile: A noise reduction device during the hole formation of a hammer-driven pile, comprising: A hammering structure 1, which consists of a pile frame, a hammer head, a cylinder, a plunger, a hammer base, etc.; 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 symmetrically opened at the upper positions on the front and rear surfaces of the attachment plate 12, and one end of the insertion connection hole 121 located inside the attachment plate 12 is communicated with a diverting liquid path 122 opened on the same side inside the attachment plate 12. The diverting 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 being communicated downward with the diverting liquid path 122 extending in the opposite direction on the opposite side, it penetrates the attachment plate 12. And the lower surface of the attachment plate 12 is connected with a telescopic tube 123 by bolts at the lower port of the diverting liquid path 122; A valve seat 1211 is integrally provided at the position where the insertion connection hole 121 communicates with the shunt liquid path 122. A spindle-shaped passage is formed inside the valve seat 1211. At the port where the passage communicates with the shunt liquid path 122, it is movably connected to a valve rod 1212 through a plurality of valve body springs 1214. The valve rod 1212 has a gyro-shaped structure. Initially, the tip of the valve rod 1212 is hermetically plugged inside the valve seat 1211. Liquid holes for the flow of safety liquid are formed 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 inside the insertion connection hole 121. The trigger rod 1213 is a T-shaped rod body; The interfaces of each shunt liquid path 122 on the left and right sides of the attachment plate 12 are connected to a hydraulic interface 131 integrally provided at a position near the upper end of the side surface of the limiting liquid pipe 13 through pipelines. The upper ends of the limiting liquid pipes 13 are respectively connected to the bottom of the attachment plate 12 in a positioning manner with movable connectors. A hydraulic push rod 132 is slidably and hermetically arranged inside the limiting liquid pipe 13. The lower end of the hydraulic push rod 132 is connected to the lower part of the outer surface of an alignment push claw 133 in a positioning manner with a movable connector. The upper surface of the alignment push claw 133 is provided with a connecting rotating shaft, and is rotatably connected to a double-ear plate on the lower surface of the attachment plate 12 through the rotating shaft; 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 inner side paths of the two first honeycomb hole noise reduction plates 21 facing the pile hammer 11 are arranged 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 surface of the first honeycomb hole noise reduction plate 21. 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 tubes 214 are fixedly arranged at the positions corresponding to the insertion holes 121 on the opposite surfaces of the two first honeycomb hole noise reduction plates 21. The end of the linkage insertion tube 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 tube 214. Retractable sliders 213 with a racket-shaped cross section are symmetrically and fixedly arranged below the front side or the rear side of the first honeycomb hole noise reduction plate 21. The first honeycomb hole noise reduction plate 21 is slidably limited in the limiting slide grooves 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 slide groove 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 at the bottom of the limiting slide groove 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 slide groove. A compensation tube 251 is fixed above the inside of the retractable liquid sac 25. The compensation tube 251 is set as a piston structure. A one-way valve group 252 is assembled at the lower port of the compensation tube 251. 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 tube 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. It is slidably limited in cooperation with the closing slide bar 211 and the limiting slide way 241 opened on the surface of the base 24, and thus the sliding connection of the third honeycomb hole noise reduction plate 23 on the upper surface of the base 24 is carried out.On the front and rear sides of the base 24, an electric push rod 242 is fixedly arranged at one port of each of the front and rear limiting chutes 241. The output end of the electric push rod 242 is fixedly connected 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. On the upper surfaces of the front and rear plates of the base 24, two auxiliary telescopic rods 243 are fixedly arranged, and the upper ends of the auxiliary telescopic rods 243 are respectively fixedly connected to the lower surfaces of the same-side top plates 244. A through hole capable of meeting the formation of a hammer-driven pile hole is formed on the surface of the base 24 opposite to the hammer-driven pile machine 11.,

[0019] During operation, the hammer head of the hammer-driven pile machine 11 is separated from the hook of the hoisting equipment. Under the action of gravity, the closing belt 212 is pressed down in cooperation with the pressure rod. The closing belt 212 drives the first, second, and third honeycomb hole noise reduction plates to move towards each other and merge along the limiting chute. At this time, the electric push rod 242 assists the movement of the third honeycomb hole noise reduction plate 23, and the linkage insertion tube 214 is inserted into the insertion connection hole 121, pushing the trigger rod 1213 out, connecting the insertion connection hole 121 and the shunt liquid path 122. As the hammer head falls, the merged first honeycomb hole noise reduction plate 21 moves downward, compressing the telescopic liquid bladder 25. The safety liquid enters the limiting liquid tube 13 and the telescopic tube 123 respectively through the one-way valve group 252, the compensation tube 251, the linkage insertion tube 214, the insertion connection hole 121, and the shunt liquid path 122. The liquid entering the limiting liquid tube 13 pushes the hydraulic push rod 132, driving the centering push claw 133 to fix the steel pipe or concrete pipe, ensuring the verticality and stability during hammering; the liquid entering the telescopic tube 123 pushes the liquid wheel 1231 to rotate, driving the pendulum hammer 1233 to strike the pendulum vibration spring 1235, and the vibration spreads to the inside of the pipe through the vibration pipe 1234. At the same time, the telescopic tube 123 is pushed to extend outward. Each hammering will repeat the above process. 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 then the two move downward along the third honeycomb hole noise reduction plate 23 until the design depth is reached to form a pile hole. At this time, the three-layer noise reduction plate shrinks, and the internal telescopic liquid bladder 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 preferentially shrinks into it.,

[0020] In summary, by designing the noise reduction structure 2, during the process of forming a hole by hammer-driven pile, 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 improving the friendliness of the construction environment. At the same time, through the cooperation mechanism of the hammering structure 1 and the noise reduction structure 2, when the hammer head of the hammer-driven pile machine 11 drops and drives the noise reduction plate to move downward to compress the telescopic liquid sac 25, the safety liquid flows to push the hydraulic push rod 132, so that the centering pawl 133 clamps and fixes the steel pipe or concrete pipe in a centered manner, 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.

[0021] 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 connected by sliding seal. The upper end plate of the outermost sleeve of the telescopic pipe 123 is internally provided with a Chinese character-shaped hole, and a liquid wheel 1231 is rotatably connected to the inside of the hole through 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. A plurality of vibration pipes 1234 are fixedly inserted and arranged around the telescopic prism rod 1232 at the bottom of the innermost sleeve of the telescopic pipe 123. 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. A swing vibration spring 1235 is fixedly arranged inside the vibration pipe 1234 through a fixing frame, and the swing vibration spring 1235 has the ability to swing freely inside the vibration pipe 1234, and the pendulum hammer 1233 will hit the surface of the swing vibration spring 1235 when rotating.

[0022] During operation, after the pile hole is formed, concrete is poured through the material discharge port on the side of the pipe. The hammer-driven pile machine 11 hammers and pulls out the pipe while compressing. The upward movement of the hammer-driven pile 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 hit the swing vibration spring 1235. The vibration spreads into the concrete, removing air bubbles and improving the uniformity and mixing degree until the pile is formed.

[0023] 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 then enhance the strength and durability of the pile body, ensuring the overall quality of the construction project.

[0024] 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 strike 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 inside the steel pipe or 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 outwards and extend. 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 noise. In addition, as the steel pipe or concrete pipe gradually sinks into the ground, 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 down along the third honeycomb hole noise reduction plate 23 under the action of the pile hammer 11 until the design 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. And 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 down, 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 contracting into the third honeycomb hole noise reduction plate 23 first; After the pile hole is formed, concrete can then be evenly poured into the interior of the pile hole through the material discharge openings reserved on the sides of the steel pipe or concrete pipe. During the process of pouring the material, the pile hammering machine 11, in cooperation with the hoisting system, will hammer and extract the pipe simultaneously, and pour and hammer-compact the concrete. During this process, as the pile hammering machine 11 moves upward, under the action of the linkage insertion pipe 214, the first honeycomb hole noise reduction plate 21 will be dragged upward synchronously. 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 suction the safety liquid injected into the telescopic pipe 123 through the linkage insertion pipe 214, the insertion connection hole 121, and the shunt liquid path 122. As the safety liquid is drawn away, the telescopic pipe 123 will be tractioned and contracted synchronously. At the same time, during the flowing process of the drawn-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 prism rod 1232. Since the pile hammering machine 11 hammers and extracts the pipe simultaneously during the casting and pipe extraction process, 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 swing vibration spring 1235, causing the swing vibration spring 1235 to vibrate. The vibrating swing vibration spring 1235 will directly conduct the vibration to the vibration pipe 1234, and utilize the vibration pipe 1234 to spread to the concrete poured inside the steel pipe or concrete pipe, thereby removing the possible air bubbles inside the concrete and improving the uniformity and mixing degree of the concrete. This process will continue during the pipe extraction and casting process 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 to the initial state.

[0025] 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 entry into the soil, 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 the design depth is reached to form a pile hole; when lowering the steel reinforcement cage, a hollow steel reinforcement cage is selected.

[0026] 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 for pile drilling, characterized in that: include: The hammer structure (1) is composed of a pile frame, a hammer head, a cylinder, a plunger, and a hammer seat; A noise reduction structure (2) is arranged on the front and rear sides of the hammer structure (1); The hammer structure (1) comprises a hammer pile driver (11), the lower end of the hammer pile driver (11) is connected to an attachment plate (12) via bolts, the front and rear surfaces of the attachment plate (12) are provided with plug-in holes (121), one end of the plug-in holes (121) is connected to a shunt fluid path (122) provided inside the attachment plate (12), and a telescopic tube (123) is connected to the lower end of the shunt fluid path (122) via bolts on the lower surface of the attachment plate (12); A valve seat (1211) is integrally provided at a position where the plug-in hole (121) communicates with the diverting fluid path (122), and a port of the valve seat (1211) is movably connected to a valve stem (1212) via a valve body spring (1214), and a tip of the valve stem (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 tube (123), the lower shaft end of the liquid wheel (1231) is fixed to the telescopic ridge rod (1232), the lower end of the telescopic ridge rod (1232) is fixed to the pendulum (1233) inside the innermost sleeve of the telescopic tube (123), and a plurality of vibration tubes (1234) are inserted and fixedly arranged around the telescopic ridge rod (1232) at the bottom of the telescopic tube (123); The interfaces of each of the diverting liquid paths (122) on the left and right sides of the attached plate (12) are communicated with the hydraulic interfaces (131) provided on the sides of the limiting liquid tubes (13) through pipelines. The upper ends of the limiting liquid tubes (13) are movably connected to the bottom of the attached plate (12). A hydraulic push rod (132) is slidably provided inside the limiting liquid tubes (13). The lower end of the hydraulic push rod (132) is movably connected to the lower side of the outer surface of the centering push claw (133). The upper claw end of the centering push claw (133) is rotatably connected to the attached plate (12).

2. A noise reduction device for pile drilling according to claim 1, characterized in that: The shunt fluid path (122) has two branches, wherein one branch extends toward a side surface close to the same side and penetrates the attached plate (12), and an interface is provided at the through hole, and the other branch extends toward the middle position of the attached plate (12), and penetrates the attached plate (12) after being connected downwards with the shunt fluid path (122) extending toward the opposite side.

3. A noise reduction device for pile drilling according to claim 1, characterized in that: The valve stem (1212) is a gyro-shaped structure, and initially, the tip of the valve stem (1212) is sealed and inserted into the interior of the valve seat (1211), and a liquid hole for safe liquid flow is provided on the surface of the valve stem (1212).

4. A noise reduction device for pile drilling according to claim 1, characterized in that: The telescopic tube (123) is a multi-layer sleeve structure, and each layer of sleeve rings is connected by sliding sealing. The end of the vibration tube (1234) located inside the innermost sleeve of the telescopic tube (123) is open, and the end located outside the telescopic tube (123) is closed. The interior of the vibration tube (1234) is fixedly provided with a shimmy spring (1235) in cooperation with a fixing frame, and the shimmy spring (1235) has the ability to swing freely inside the vibration tube (1234), and the pendulum (1233) will hit the surface of the shimmy spring (1235) when rotating.

5. The noise reduction device for pile drilling according to claim 1, characterized in that: The noise reduction structure (2) comprises two first honeycomb hole noise reduction plates (21) arranged at the front and rear sides of the hammer pile driver (11); the facing surfaces of the two first honeycomb hole noise reduction plates (21) are fixedly provided with linkage plugs (214) at positions corresponding to the plug-in holes (121); telescopic sliders (213) are symmetrically fixedly provided below the front side surfaces or the rear side surfaces of the two first honeycomb hole noise reduction plates (21), and are slidably limitedly provided in a limited slide groove on the inner side surface of the second honeycomb hole noise reduction plate (22) in cooperation with the telescopic sliders (213); a telescopic liquid capsule (25) is fixedly provided at the lower end of the telescopic slider (213) inside the limited slide groove on the inner side surface of the second honeycomb hole noise reduction plate (22); and the lower end of the telescopic liquid capsule (25) is fixedly provided at the bottom of the limited slide groove on the inner side surface of the second honeycomb hole noise reduction plate (22); a compensation tube (251) is fixed above the interior of the telescopic liquid capsule (25), and a one-way valve group (252) is assembled at the lower end of the compensation tube (251).

6. A noise reduction device for pile drilling according to claim 5, characterized in that: The inner side paths of the two first honeycomb hole noise reduction plates (21) facing the hammer pile driver (11) are arranged according to the outer contour of the hammer pile driver (11), and a closing slide bar (211) is fixedly arranged on the upper surface of the first honeycomb hole noise reduction plate (21), and the closing slide bar (211) is slidably limited in a limited slideway (241) provided 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), and a closing belt (212) is fixedly arranged at the middle upper position of the left and right sides of the inner concave surface 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 by the closing belt (212), and a pressure rod for pressing the closing belt (212) downward is fixedly arranged on the upper side of the closing belt (212) on the left and right sides of the hammer pile driver (11), which is used to press the closing belt (212) downward.

7. A noise reduction device for pile drilling according to claim 5, characterized in that: The end of the linkage cannula (214) is arranged as a piston end, and a mesh frame that pushes against the trigger rod (1213) is fixedly arranged at the port of the linkage cannula (214).

8. The noise reduction device for pile drilling according to claim 5, characterized in that: A designated open through hole is provided at the upper end of the telescopic liquid capsule (25), a liquid path is provided inside the first honeycomb hole noise reduction plate (21) to connect the linkage insert (214) with the telescopic liquid capsule (25), and a spring is provided inside the telescopic liquid capsule (25) on the outside of the one-way valve group (252).

9. The noise reduction device for pile drilling according to claim 5, characterized in that: The second honeycomb hole noise reduction plate (22) is movably connected to the inner side of the third honeycomb hole noise reduction plate (23) by using the same connection structure as 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 capsule (25) inside the third honeycomb hole noise reduction plate (23) is connected to the lower end of the telescopic liquid capsule (25) inside the second honeycomb hole noise reduction plate (22) through a liquid path provided in cooperation with the upper end of the telescopic liquid capsule (25) inside the second honeycomb hole noise reduction plate (22), and the lower end of the third honeycomb hole noise reduction plate (23) is also fixedly provided with a closing slide bar (211), and the closing slide bar (211) is slidably limited by a limited slideway (241) provided on the surface of the base (24), thereby performing the third The honeycomb hole noise reduction plate (23) is slidably connected to the upper surface of the base (24); an electric push rod (242) is fixedly provided at one of the ports of the front and rear limiting slideways (241) on the front and rear side surfaces of the base (24), and the output end of the electric push rod (242) is fixed to one end of a 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 fixedly provided on the upper surfaces of the front and rear plates of the base (24), 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.

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