A pile cutter for preventing splash damage in construction projects

Abstract

The present invention relates to the field of construction technology, and in particular to a pile cutter for preventing splash damage in construction engineering, comprising an outer shell, a connecting frame, etc.; the outer shell is evenly provided with six openings circumferentially, and the inner wall openings of the outer shell are fixedly connected with a connecting frame, the outer shell is fixedly connected to the inner shell through the connecting frame, the connecting frame is connected between the outer shell and the inner shell, the top of the inner shell is provided with an opening, and the top of the inner shell is circumferentially provided with a plurality of lifting rings for docking the operating end; a drilling member I, the drilling member I is used to drill holes in the side wall of the pile head. The present invention effectively prevents debris splashing and protects the safety of construction workers through the design of the outer shell and the application of an expansion agent during the drilling process, and the side wall and the top of the pile head can be drilled simultaneously by using the drilling member I and the drilling member II, and the pile head can be quickly broken with the use of an expansion agent, which significantly shortens the pile cutting time.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a pile cutter for preventing splashing injuries in construction engineering. Background Art

[0002] With the rapid development of the construction industry, the requirements for construction safety are getting higher and higher. The traditional pile cutting method often uses handheld cutting tools. This method is not only inefficient, but also generates a lot of dust and debris during the cutting process, posing a great safety hazard. In order to avoid these risks, pile cutters came into being. Pile cutters are a kind of engineering machinery suitable for quickly cutting off pile heads in pile foundation projects. They are suitable for cutting off pile heads in various pile foundation forms. They are commonly known as pile breakers internationally. In order to conform to the habits of our country, they are named pile cutters. They are designed to improve work efficiency while ensuring the safety of construction workers.

[0003] After searching, the patent with the authorization publication number CN118128043B discloses a pile cutter for construction engineering, including an outer milling cylinder, an inner milling mechanism and a circulating crushing mechanism, wherein the inner milling mechanism is arranged on the inner side of the outer milling cylinder, and the circulating crushing mechanism is rotatably arranged on the inner milling mechanism, and a motor compartment is rotatably arranged on the top of the outer milling cylinder, and a power motor is arranged in the motor compartment. When the pile cutter performs milling and cutting operations on the pile body through the above structure, the crushed gravel is easy to splash and increase the safety risk, and its milling structure is relatively fixed and lacks adaptive adjustment function, which means that when processing pile bodies of different sizes, it is necessary to frequently replace devices of different specifications. In addition, when facing a pile body with dense and closely distributed steel bars, the internal milling structure may collide with the steel bars, thereby hindering the smooth progress of the pile cutting work. In order to solve these problems, we have designed a pile cutter for construction engineering that can prevent splashing injuries, so as to achieve the effect of safe and efficient pile cutting. Summary of the invention

[0004] In order to overcome the disadvantage that when the existing pile cutter directly destroys the pile structure through the milling mechanism and the crushing mechanism to cut the pile, the crushed gravel is easy to splash and cause safety risks, the present invention provides a pile cutter for construction engineering that can prevent splashing injuries.

[0005] A pile cutter for preventing splash damage for construction engineering, comprising an outer shell, a connecting frame, an inner shell and a lifting ring, wherein the outer shell is evenly provided with no less than six through openings in the circumferential direction, the through openings on the inner wall of the outer shell are fixedly connected with a connecting frame, the outer shell is fixedly connected to the inner shell through the connecting frame, the connecting frame is connected between the outer shell and the inner shell, the top of the inner shell is provided with an opening, and the top of the inner shell is circumferentially provided with a plurality of lifting rings for facilitating docking with an operating end; a drilling member I, the drilling member I is used to drill holes in the side wall of the pile head, the drilling member I comprises a mounting block, a hydraulic cylinder I, a rotating shaft I, a servo motor I, a pulley group I, a drill bit I and an infusion tube I, the hydraulic cylinder I is fixedly installed on the outer wall of the outer shell through the mounting block, and the number of the hydraulic cylinders I is The number is consistent with and corresponds to the connecting frames. A rotating shaft I is rotatably installed on the piston rod of the hydraulic cylinder I. The interior of the rotating shaft I is a hollow structure. A servo motor I is installed on the piston rod of the hydraulic cylinder I. The output shaft of the servo motor I is connected to the rotating shaft I through the pulley group I. A drill bit I is installed on the end of the rotating shaft I. The hydraulic cylinder I is sealed with an infusion tube I that passes through the hydraulic cylinder I and the rotating shaft I. The infusion tube I is sealed and slidable and then embedded in the drill bit I; a drilling member II, the drilling member II is arranged on the inner shell, and the drilling member II is used to drill a hole on the top of the pile head; a clamping assembly, the clamping assembly is arranged at the bottom of the outer shell, and the clamping assembly is used to stably clamp the outer wall of the pile head.

[0006] Further description, the drilling component II includes a hydraulic cylinder II, a mounting frame, a rotating shaft II, a servo motor II, a pulley group II, a drill bit II and an infusion tube II. The hydraulic cylinder II is symmetrically fixedly installed on the outer wall of the inner shell, and a mounting frame is fixedly connected between the tops of the piston rods of the two hydraulic cylinders II. The rotating shaft II is rotatably installed in the middle of the mounting frame. The interior of the rotating shaft II is a hollow structure. A servo motor II is installed on the mounting frame. The output shaft of the servo motor II is connected to the rotating shaft II through the pulley group II. A drill bit II is installed at the end of the rotating shaft II. The infusion tube II is sealed and slidable through the rotating shaft II and then embedded in the drill bit II.

[0007] It is further explained that the drill bit I and the drill bit II are both replaceable and are respectively installed on the rotating shaft I and the rotating shaft II. According to the actual difficulty of pile cutting at the pile head, the drill bit I and the drill bit II of different sizes can be selected for crushing.

[0008] Further description, the clamping assembly includes a circular ring frame, a limit block, a connecting block, a convex rod and a guide plate. The bottom of the outer shell is fixedly connected to the circular ring frame, and a plurality of connecting blocks are circumferentially fixed to the inner wall of the circular ring frame. The circular ring frame is rotatably installed with a same number of limit blocks through the connecting blocks. The limit blocks are annularly distributed circumferentially in the circular ring frame. The bottom of the limit blocks are fixedly connected to a convex rod. The bottom of the circular ring frame is rotatably connected to a guide plate. The guide plate is provided with arc-shaped grooves that are the same in number as the limit blocks, and the arc-shaped grooves of the guide plate are limited on the corresponding convex rods.

[0009] Further description, it also includes a cutting component, which includes an electric push rod I, a guide frame, a sliding block and a cutting wheel I. Two electric push rods I are symmetrically installed on the outer wall of the outer shell. A guide frame is symmetrically connected between the outer shell and the inner shell. Sliding blocks are slidably installed inside the guide frame, and cutting wheels I are electrically installed on the sliding blocks.

[0010] Further description, the cutting assembly also includes a servo motor III and a cutting wheel II. The limit blocks are each mounted with a servo motor III, and the output shaft of the servo motor III is mounted with a cutting wheel II.

[0011] It is further explained that a heating element is provided on the inner shell, and the heating element is used to heat the expansion agent injected into the pile body, so as to accelerate the rate at which the expansion agent breaks the pile head. The heating element includes a heating tube, a heater and an air pump I. A heating tube is provided on the top of the inner shell, and a plurality of nozzles are installed at the bottom of the heating tube. The heating tube is divided into an upper and lower layer. The lower layer of the heating tube is located on the inner wall of the top of the inner shell. A heater is installed on the top of the inner shell, and the heating tube is connected to the heater. An air pump I is also installed on the top of the inner shell, and the air pump I is connected to the heater. The air pump I blows the air heated in the heater into the heating tube.

[0012] Further explanation: The mounting frame is provided with an infusion assembly, which is used to automatically inject expansion agent into the pile head. The infusion assembly includes a connecting pipe, a partition plate, a one-way valve I, an air pump II and a hose. The top of the infusion pipe II is sealed and connected with the connecting pipe. A partition plate is arranged inside the connecting pipe. The partition plate divides the inside of the connecting pipe into two compartments of different sizes. The infusion pipe II is located in the large compartment formed between the partition plate and the connecting pipe. An opening is arranged on the top inclined plate of the partition plate. A one-way valve I is installed at the opening of the partition plate. The one-way valve I only allows gas to flow from the small compartment of the connecting pipe into the large compartment. The mounting frame is provided with an air pump II. The air outlet of the air pump II is connected to the small compartment of the connecting pipe through a pipeline. A plurality of openings are arranged on the top of the connecting pipe. The plurality of openings of the connecting pipe are respectively connected to the infusion pipe I through hoses.

[0013] Further description, the infusion assembly also includes a hydraulic pump I and a one-way valve II. The mounting frame is also equipped with a hydraulic pump I. The outlet of the hydraulic pump I is connected to the large compartment of the connecting pipe through a pipeline. The inlet of the hydraulic pump I is connected to the input source of the expansion agent. A one-way valve II is provided on the top of the infusion pipe II. The one-way valve II only allows the fluid to flow from the connecting pipe into the infusion pipe II.

[0014] Further explanation: a sealing component is provided on the outer shell, and the sealing component is used to seal the expansion agent injected into the side wall of the pile head. The sealing component includes a storage frame, a hydraulic pump II, an electric push rod II, a sliding rod and a nozzle. A ring-shaped storage frame is installed on the outer wall of the outer shell, and the storage frame is used to store yellow mud for sealing. The storage frame is circumferentially connected with hydraulic pumps II of the same number as the hydraulic cylinders I, and the liquid inlet of the hydraulic pump II is connected to the storage frame. The side wall of the outer shell is circumferentially installed with electric push rods II of the same number as the hydraulic cylinders I, and the push rods of the electric push rods II are connected with sliding rods. A nozzle is installed on the end of the sliding rod. The nozzle is annular and the drill bit I is located inside it. The liquid outlet of the hydraulic pump II is connected to the nozzle through a pipeline.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention effectively prevents debris from splashing and protects the safety of construction workers through the design of the outer shell and the use of expansion agent during the drilling process. In addition, the drilling parts I and II can be used to drill the side wall and the top of the pile head at the same time. The use of expansion agent can quickly break the pile head, significantly shortening the pile cutting time.

[0016] 2. The present invention can ensure the stability of the pile head during the processing process through the coordinated design of the upper limit block and the guide plate of the clamping component, reduce the risk of accidents caused by instability, and the infusion component automatically completes the injection of the expansion agent, reducing the need for manual intervention and further improving construction efficiency.

[0017] 3. The present invention can also accelerate the drying process of the expansion agent through the design of the heating element, and the cutting component can pre-cut the pile head before drilling, making the entire pile cutting process more efficient and orderly.

[0018] 4. The present invention utilizes a sealing component in conjunction with drilling member I and drilling member II, which can seal the hole immediately after drilling member I and drilling member II complete drilling, thereby preventing leakage of the expansion agent and entry of external impurities, ensuring the expansion effect of the expansion agent, and thus improving the crushing efficiency of the pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the drilling component I and the drilling component II of the present invention.

[0021] Figure 3 This is a connection diagram of the clamping assembly and the cutting assembly of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the drilling component I of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the drilling component II of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the cutting assembly and the heating element of the present invention.

[0025] Figure 7 This is a diagram showing the connection relationship between the clamping assembly and the cutting wheel II of the present invention.

[0026] Figure 8 Exploded view of the clamping assembly of the present invention.

[0027] Fig. 9 This is a diagram showing the connection relationship between the infusion assembly and the drilling component Ⅰ of the present invention.

[0028] Fig.10 It is a three-dimensional structural schematic diagram of specific components of the infusion assembly of the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the sealing assembly of the present invention.

[0030] In the figure: 1, outer shell, 2, connecting frame, 3, inner shell, 301, lifting ring, 4, drilling member Ⅰ, 401, mounting block, 402, hydraulic cylinder Ⅰ, 403, rotating shaft Ⅰ, 404, servo motor Ⅰ, 405, pulley group Ⅰ, 406, drill bit Ⅰ, 407, infusion tube Ⅰ, 5, drilling member Ⅱ, 501, hydraulic cylinder Ⅱ, 502, mounting frame, 503, rotating shaft Ⅱ, 504, servo motor Ⅱ, 505, pulley group Ⅱ, 506, drill bit Ⅱ, 507, infusion tube Ⅱ, 6, clamping assembly, 601, ring frame, 602, limit block, 603, connecting block, 604, convex rod, 605, guide To plate, 7, cutting assembly, 701, electric push rod I, 702, guide frame, 703, sliding block, 704, cutting wheel I, 705, servo motor III, 706, cutting wheel II, 8, heating element, 801, heating tube, 802, heater, 803, air pump I, 9, infusion assembly, 901, connecting pipe, 902, partition plate, 903, one-way valve I, 904, air pump II, 905, hydraulic pump I, 906, one-way valve II, 907, hose, 10, sealing assembly, 101, storage frame, 102, hydraulic pump II, 103, electric push rod II, 104, sliding rod, 105, nozzle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] Embodiment 1: A pile cutter for preventing splash damage in construction engineering, such as Figure 1-Figure 4 As shown, it comprises an outer shell 1, a connecting frame 2, an inner shell 3 and a lifting ring 301, the outer shell 1 is evenly provided with six through openings in the circumferential direction, the inner wall through openings of the outer shell 1 are fixedly connected with a connecting frame 2, the outer shell 1 is fixedly connected to the inner shell 3 through the connecting frame 2, the connecting frame 2 is connected between the outer shell 1 and the inner shell 3, the top of the inner shell 3 is provided with an opening, and the top of the inner shell 3 is circumferentially provided with a plurality of lifting rings 301 for facilitating docking operation ends; a drilling member Ⅰ4, the drilling member Ⅰ4 is used to drill holes in the side wall of the pile head, the The drilling member Ⅰ4 includes a mounting block 401, a hydraulic cylinder Ⅰ402, a rotating shaft Ⅰ403, a servo motor Ⅰ404, a pulley group Ⅰ405, a drill bit Ⅰ406 and an infusion tube Ⅰ407. The hydraulic cylinder Ⅰ402 is fixedly mounted on the outer wall of the housing 1 through the mounting block 401. The number of the hydraulic cylinders Ⅰ402 is consistent with the number of the connecting frames 2 and corresponds to each other. The rotating shaft Ⅰ403 is rotatably mounted on the piston rod of the hydraulic cylinder Ⅰ402, and the interior of the rotating shaft Ⅰ403 is a hollow structure. A servo motor Ⅰ404 is installed on the piston rod of the hydraulic cylinder Ⅰ402, and the output shaft of the servo motor Ⅰ404 is connected to the rotating shaft Ⅰ403 through the pulley group Ⅰ405. A drill bit Ⅰ406 is installed on the end of the rotating shaft Ⅰ403. The hydraulic cylinder Ⅰ402 is sealed with an infusion tube Ⅰ407 running through it. The infusion tube Ⅰ407 is sealed and slidable through the hydraulic cylinder Ⅰ402 and the rotating shaft Ⅰ403 and then embedded in the drill bit Ⅰ406; a drilling member Ⅱ5, the drilling member Ⅱ 5 is arranged on the inner shell 3, and the drilling member II5 is used for drilling a hole on the top of the pile head; the clamping assembly 6 is arranged at the bottom of the outer shell 1, and the clamping assembly 6 is used for stably clamping the outer wall of the pile head. After the drilling members I4 and II5 respectively rotate holes on the side wall and the top of the pile head, an expansion agent is injected into the drilled hole of the pile head through the infusion pipe I407 and the infusion pipe II507 respectively. After the expansion agent expands, the pile head can be quickly broken, so that it is convenient for construction personnel to cut the pile.

[0033] like Figure 1 , Figure 2 and Figure 5As shown, the drilling member II5 comprises a hydraulic cylinder II501, a mounting frame 502, a rotating shaft II503, a servo motor II504, a pulley set II505, a drill bit II506 and an infusion tube II507. The hydraulic cylinder II501 is symmetrically fixedly mounted on the outer wall of the inner shell 3. A mounting frame 502 is fixedly connected between the tops of the piston rods of the two hydraulic cylinders II501. A rotating shaft II503 is rotatably mounted in the middle of the mounting frame 502. The interior of the rotating shaft II503 is a hollow structure. A servo motor II504 is mounted on the mounting frame 502. The servo motor II504 is mounted on the servo motor II504. The output shaft of the servo motor II504 is connected to the rotating shaft II503 through a pulley group II505, a drill bit II506 is installed at the end of the rotating shaft II503, and the infusion tube II507 is sealed and slidably penetrates the rotating shaft II503 and is embedded in the drill bit II506; the drill bit I406 and the drill bit II506 are both replaceable and are respectively installed on the rotating shaft I403 and the rotating shaft II503. According to the actual difficulty of pile cutting, the drill bit I406 and the drill bit II506 of different sizes can be selected for crushing.

[0034] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the clamping assembly 6 includes a circular frame 601, a limit block 602, a connecting block 603, a protruding rod 604 and a guide plate 605. The bottom of the housing 1 is fixedly connected to the circular frame 601, and a plurality of connecting blocks 603 are circumferentially fixedly connected to the inner wall of the circular frame 601. The circular frame 601 is rotatably mounted with a uniform number of limit blocks 602 through the connecting blocks 603. The limit blocks 602 are annularly distributed circumferentially in the circular frame 601. The bottom of the limit blocks 602 The bottom of the circular frame 601 is rotatably connected to a guide plate 605, and the guide plate 605 is provided with an arc-shaped sliding groove with the same number as the limit block 602. The arc-shaped sliding groove of the guide plate 605 is limited on the corresponding convex rod 604. By twisting the guide plate 605, the arc-shaped sliding groove of the guide plate 605 squeezes the convex rod 604, so that the limit block 602 rotates inwardly with the connecting block 603 as the rotating axis and contracts, thereby stably clamping and limiting the pile head.

[0035] When the pile cutter is used to cut a pile head, the pile cutter is first connected to an operating end such as a crane through the lifting ring 301. After the inner shell 3 is inserted into the pile head to be cut through the operating end, the guide plate 605 is first twisted, and the arc-shaped slide groove on the guide plate 605 will be squeezed on the convex rod 604. The compressed convex rod 604 will slide along the arc-shaped slide groove of the guide plate 605. At this time, the sliding convex rod 604 will drive the connecting block 603 to move synchronously. At this time, the multiple limit blocks 602 in the circular frame 601 will be connected in a Block 603 is the shaft that rotates inward and contracts until multiple limit blocks 602 contract inward and contact the side wall of the pile head, completing the stable limit of the pile head, and then the servo motor Ⅰ404 is activated, and the output shaft of the servo motor Ⅰ404 drives the shaft Ⅰ403 to rotate through the pulley group Ⅰ405, and the rotating shaft Ⅰ403 drives the drill bit Ⅰ406 to rotate. At this time, the piston rod of the hydraulic cylinder Ⅰ402 drives the shaft Ⅰ403 and the drill bit Ⅰ406 to move synchronously toward the pile body in the inner shell 3 until After the drill bit Ⅰ406 is rotated to drill a hole of a certain depth on the side wall of the pile head, as the hydraulic cylinder Ⅰ402 drives the drill bit Ⅰ406 to reset, a gradual expansion agent is injected into the drill hole on the side wall of the pile head through the infusion tube Ⅰ407, and the servo motor Ⅱ504 is activated again. The output shaft of the servo motor Ⅱ504 drives the rotating shaft Ⅱ503 to rotate through the pulley group Ⅱ505. The rotating rotating shaft Ⅱ503 drives the drill bit Ⅱ506 to rotate, and then the two hydraulic cylinders Ⅱ501 are controlled to start synchronously. The piston rods of the two hydraulic cylinders II 501 can synchronously drive the mounting frame 502, the rotating shaft II 503 and the drill bit II 506 to move toward the pile body in the inner shell 3, so that the rotating drill bit II 506 drills a hole of a certain depth on the top of the pile head. Similarly, an expansion agent is injected into the top hole of the pile head through the infusion pipe II 507, thereby the expansion agent cools and expands in each borehole and squeezes the pile body, so that the pile head is safely ruptured by the expansion agent. Finally, the pile cutting work can be completed by controlling the pile cutting machine to be lifted upward by the operating end.

[0036] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 3 and Figure 6As shown, it also includes a cutting assembly 7, which includes an electric push rod Ⅰ701, a guide frame 702, a sliding block 703 and a cutting wheel Ⅰ704. Two electric push rods Ⅰ701 are symmetrically installed on the outer wall of the shell 1, and the guide frame 702 is symmetrically connected between the outer shell 1 and the inner shell 3. The sliding blocks 703 are slidably installed inside the guide frames 702, and the cutting wheels Ⅰ704 are electrically installed on the sliding blocks 703. The electric push rod Ⅰ701 pushes out the cutting wheel Ⅰ704 on the sliding block 703 through the push rod, and then drives the cutting wheel Ⅰ704 electrically. 4 extends into the inner shell 3 to cut the side wall of the pile head, so as to crush the pile head later; the cutting assembly 7 also includes a servo motor III 705 and a cutting wheel II 706. The servo motor III 705 is installed on the limit block 602, and the cutting wheel II 706 is installed on the output shaft of the servo motor III 705. After the side wall of the pile head is limited by the limit block 602, the servo motor III 705 drives the cutting wheel II 706 to cut the side wall of the pile head circumferentially, so that a circle of notches are cut on the side wall of the pile head, which is convenient for the subsequent crushing and cutting of the pile body.

[0037] like Figure 2 , Figure 3 and Figure 6 As shown, a heating element 8 is provided on the inner shell 3, and the heating element 8 is used to heat the expansion agent injected into the pile body, so as to accelerate the rate at which the expansion agent breaks the pile head. The heating element 8 includes a heating tube 801, a heater 802 and an air pump I 803. A heating tube 801 is provided on the top of the inner shell 3, and a plurality of nozzles are installed at the bottom of the heating tube 801. The heating tube 801 is divided into an upper and a lower layer. The lower layer of the heating tube 801 is located on the inner wall of the top of the inner shell 3, and the inner A heater 802 is installed on the top of the shell 3, and the heating tube 801 is connected to the heater 802. An air pump I 803 is also installed on the top of the inner shell 3, and the air pump I 803 is connected to the heater 802. The air pump I 803 blows the air heated in the heater 802 into the heating tube 801, and sprays hot air downward onto the pile head in the inner shell 3 through multiple nozzles on the heating tube 801, so that the expansion agent sprayed onto the pile head can be dried quickly, thereby improving the efficiency of pile head rupture.

[0038] In the process of inserting the pile cutter into the pile head, the electric push rod Ⅰ701 is first controlled to push the sliding block 703 through the push rod, so that the sliding block 703 drives the cutting wheel Ⅰ704 thereon to extend into the interior of the inner shell 3, and the cutting wheel Ⅰ704 is rotated by electric driving. At this time, when the inner shell 3 descends and is sleeved on the pile head, the cutting wheel Ⅰ704 will cut along the side wall of the pile head, and when the multiple limit blocks 602 shrink inwardly and complete the limit of the pile head, the servo motor III 705 is enabled, and the servo motor III 705 drives the cutting wheel II 706 to rotate through the output shaft. At this time, the limit block 602 that shrinks inwardly will synchronously drive the servo motor III 705 and the cutting wheel Ⅱ706 moves inwards until the rotating cutting wheel Ⅱ706 cuts off an opening on the side wall of the pile head. After the pile cutter is controlled by the operating end to rotate at a certain angle, a circle of grooves can be cut on the side of the pile head to facilitate the subsequent crushing and cutting of the pile head. When the expansion agent is input into the borehole through the infusion pipe Ⅰ407 and the infusion pipe Ⅱ507, the air pump Ⅰ803 and the heater 802 are activated so that the air pump Ⅰ803 can draw the air heated by the heater 802 into the heating pipe 801, and the hot air is blown onto the pile head through the jet nozzle at the bottom of the heating pipe 801, so that the surface of the pile head is heated, thereby accelerating the cooling rate of the expansion agent in the pile head borehole and improving the crushing efficiency of the pile head.

[0039] Embodiment 3: Based on embodiment 2, Figure 1 , Fig. 9 and Fig.10As shown, the mounting frame 502 is provided with an infusion assembly 9, and the infusion assembly 9 is used to automatically inject an expansion agent into the pile head. The infusion assembly 9 includes a connecting pipe 901, a partition plate 902, a one-way valve I 903, an air pump II 904 and a hose 907. The top of the infusion pipe II 507 is sealed and connected with the connecting pipe 901. The connecting pipe 901 is provided with a partition plate 902 inside. The partition plate 902 divides the inside of the connecting pipe 901 into two compartments, large and small. The infusion pipe II 507 is located in the large compartment formed between the partition plate 902 and the connecting pipe 901. The partition plate 902 02, an opening is provided on the top inclined plate, and a one-way valve I 903 is installed at the opening of the partition plate 902. The one-way valve I 903 only allows gas to flow from the small compartment of the connecting pipe 901 into the large compartment. An air pump II 904 is installed on the mounting frame 502. The air outlet of the air pump II 904 is connected to the small compartment of the connecting pipe 901 through a pipeline. The top of the connecting pipe 901 has multiple openings, and the multiple openings of the connecting pipe 901 are respectively connected to the infusion pipe I 407 through a hose 907. The air pump II 904 is used to blow air into the connecting pipe 901 to make the connecting pipe 901 The air in the tube 901 will be respectively passed into the soft tube 907 and the infusion tube II 507, and the multiple soft tubes 907 will then blow the air flow into the multiple infusion tubes I 407, so that the multiple infusion tubes I 407 and the infusion tubes II 507 can respectively blow air to the holes drilled by the drill bits I 406 and the drill bits II 506, so that the debris drilled in the holes can be blown out and cleaned; the infusion assembly 9 also includes a hydraulic pump I 905 and a one-way valve II 906, and the mounting frame 502 is also equipped with a hydraulic pump I 905, and the outlet of the hydraulic pump I 905 is connected to the connecting tube 90 through a pipeline. 1, the liquid inlet of the hydraulic pump I 905 is connected to the input source of the expansion agent, and a one-way valve II 906 is arranged on the top of the liquid delivery pipe II 507, and the one-way valve II 906 only allows the fluid to flow from the connecting pipe 901 to the liquid delivery pipe II 507. The hydraulic pump I 905 can inject the expansion agent into the connecting pipe 901, and the expansion agent is successively injected into the liquid delivery pipe II 507 and the hose 907, and then the expansion agent through the hose 907 is finally injected into each of the liquid delivery pipes I 407, so that the drill bit and the drill bit II 506 can automatically inject the expansion agent while drilling a hole on the pile head.

[0040] like Figure 1 , Fig. 9 and Fig.11As shown, the housing 1 is provided with a sealing assembly 10, which is used to seal the expansion agent injected into the side wall of the pile head. The sealing assembly 10 includes a storage frame 101, a hydraulic pump II 102, an electric push rod II 103, a sliding rod 104 and a nozzle 105. A ring-shaped storage frame 101 is installed on the outer wall of the housing 1. The storage frame 101 is used to store yellow mud for sealing. The storage frame 101 is connected to the same number of hydraulic pumps II as the hydraulic cylinders I 402 in the circumferential direction. 102, the liquid inlet of the hydraulic pump II 102 is connected to the storage frame 101, and the electric push rods II 103, the same number as the hydraulic cylinder I 402, are circumferentially installed on the side wall of the shell 1, and the push rods of the electric push rods II 103 are connected with sliding rods 104, and the ends of the sliding rods 104 are installed with nozzles 105, the nozzles 105 are annular and the drill bit I 406 is located inside, and the liquid outlet of the hydraulic pump II 102 is connected to the nozzles 105 through a pipeline.

[0041] When the drill bit Ⅰ406 and the drill bit Ⅱ506 drill holes on the side wall and the top of the pile head respectively, the air pump Ⅱ904 is activated, and the air pump Ⅱ904 draws air into the connecting pipe 901, and the air flows from the small compartment of the connecting pipe 901 into the large compartment through the one-way valve Ⅰ903, and the gas flowing into the large compartment flows into the hose 907 and the infusion pipe Ⅱ507 respectively, and the gas flowing into the hose 907 is respectively passed into the corresponding infusion pipe Ⅰ407, and finally blown out from the infusion pipe Ⅰ407 at the drill bit Ⅰ406 into the borehole, so that the debris in the borehole drilled by the drill bit Ⅰ406 is blown out, and at the same time flows into the infusion pipe Ⅱ507. The airflow in the liquid pipe II 507 will flow directly downward and be blown out from the liquid delivery pipe II 507 at the drill bit II 506 into the borehole, so that the debris in the borehole drilled by the drill bit II 506 is blown out. When the debris in the borehole is blown clean, the hydraulic pump I 905 is activated again, and the expansion agent is connected to the liquid inlet of the hydraulic pump I 905, so that the hydraulic pump I 905 can pump the expansion agent into the large compartment of the connecting pipe 901. The expansion agent gradually filled in the connecting pipe 901 will flow into the liquid delivery pipe II 507 through the one-way valve II 906, and as the drill bit II 506 withdraws from the borehole, the expansion agent is gradually sprayed out through the liquid delivery pipe II 507. When the expansion agent is filled into the borehole, the one-way valve II 906 is closed, so that the expansion agent pumped into the connecting pipe 901 cannot continue to flow into the infusion pipe II 507, and the expansion agent continues to accumulate and rise in the large compartment of the connecting pipe 901 until it rises to the top of the connecting pipe 901. Due to the one-way conduction of the one-way valve I 903, the expansion agent in the large compartment cannot flow into the small compartment through the partition plate 902 at this time. The expansion agent can only flow into the corresponding infusion pipe I 407 through the hose 907, and as the drill bit I 406 withdraws from the borehole, the expansion agent is gradually sprayed out through the infusion pipe I 407. The electric push rod Ⅱ103 is activated when the borehole is filled with expansion agent. The electric push rod Ⅱ103 pushes the sliding rod 104 to move through the push rod, so that the sliding rod 104 can drive the nozzle 105 to move inward and close to the borehole drilled by the drill bit Ⅰ406. Then the yellow mud in the storage frame 101 is pumped into the nozzle 105 through the hydraulic pump Ⅱ102 and sprayed out, so that the yellow mud used for sealing will cover the outside of the expansion agent in the borehole, so that the borehole drilled by the drill bit Ⅰ406 is sealed, avoiding the expansion agent from flowing out before it has time to dry, improving the expansion effect of the expansion agent in the borehole, and further accelerating the crushing efficiency of the pile body.

[0042] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A pile cutter for preventing splash damage for construction engineering, comprising an outer shell (1), a connecting frame (2), an inner shell (3) and a lifting ring (301), wherein the outer shell (1) is evenly provided with no less than six through openings in a circumferential direction, the inner wall of the outer shell (1) is fixedly connected to the through openings, the outer shell (1) is fixedly connected to the inner shell (3) through the connecting frame (2), the top of the inner shell (3) is provided with an opening, and the top of the inner shell (3) is circumferentially provided with a plurality of lifting rings (301) for facilitating docking with an operating end; Its characteristics are: Also included are: A drilling member I (4), the drilling member I (4) being used for drilling holes in the side wall of the pile head, the drilling member I (4) comprising a mounting block (401), a hydraulic cylinder I (402), a rotating shaft I (403), a servo motor I (404), a pulley assembly I (405), a drill bit I (406) and a fluid infusion tube I (407), the hydraulic cylinder I (402) being fixedly mounted on the outer wall of the housing (1) via the mounting block (401), and the number of the hydraulic cylinders I (402) and the number of the connecting frames (2) being consistent and corresponding to each other , a rotating shaft Ⅰ (403) is rotatably mounted on the piston rod of the hydraulic cylinder Ⅰ (402), a servo motor Ⅰ (404) is mounted on the piston rod of the hydraulic cylinder Ⅰ (402), an output shaft of the servo motor Ⅰ (404) is connected to the rotating shaft Ⅰ (403) via the pulley group Ⅰ (405), a drill bit Ⅰ (406) is mounted on the end of the rotating shaft Ⅰ (403), and the infusion tube Ⅰ (407) is sealed and slidably penetrates the hydraulic cylinder Ⅰ (402) and the rotating shaft Ⅰ (403) and is then embedded in the drill bit Ⅰ (406); A drilling member II (5), the drilling member II (5) being arranged on the inner shell (3), and the drilling member II (5) being used for drilling a hole on the top of the pile head; A clamping assembly (6), the clamping assembly (6) being arranged at the bottom of the housing (1), the clamping assembly (6) being used to stably clamp the outer wall of the pile head; The drilling member II (5) comprises a hydraulic cylinder II (501), a mounting frame (502), a rotating shaft II (503), a servo motor II (504), a pulley group II (505), a drill bit II (506) and an infusion tube II (507); the hydraulic cylinder II (501) is symmetrically fixedly mounted on the outer wall of the inner shell (3); a mounting frame (502) is fixedly connected between the tops of the piston rods of the two hydraulic cylinders II (501); a rotating shaft II (503) is rotatably mounted in the middle of the mounting frame (502); a servo motor II (504) is mounted on the mounting frame (502); the output shaft of the servo motor II (504) is connected to the rotating shaft II (503) via the pulley group II (505); a drill bit II (506) is mounted at the end of the rotating shaft II (503); and the infusion tube II (507) penetrates the rotating shaft II (503) and is embedded in the drill bit II (506); The drill bit I (406) and the drill bit II (506) are both replaceable and are respectively mounted on the rotating shaft I (403) and the rotating shaft II (503); The clamping assembly (6) comprises a circular frame (601), a limit block (602), a connecting block (603), a convex rod (604) and a guide plate (605); the bottom of the housing (1) is fixedly connected to the circular frame (601); a plurality of connecting blocks (603) are circumferentially fixedly connected to the inner wall of the circular frame (601); the circular frame (601) is rotatably mounted with the limit block (602) through the connecting blocks (603); the limit blocks (602) are annularly distributed circumferentially in the circular frame (601); the bottoms of the limit blocks (602) are fixedly connected to the convex rod (604); the bottom of the circular frame (601) is rotatably connected to the guide plate (605); the guide plate (605) is provided with arc-shaped sliding grooves of the same number as the limit blocks (602); the arc-shaped sliding grooves of the guide plate (605) are limited on the corresponding convex rods (604); The mounting frame (502) is provided with an infusion assembly (9), the infusion assembly (9) comprising a connecting tube (901), a partition plate (902), a one-way valve I (903), an air pump II (904) and a hose (907). The top of the infusion tube II (507) is provided with a connecting tube (901), the interior of the connecting tube (901) is provided with a partition plate (902), the partition plate (902) divides the interior of the connecting tube (901) into two compartments, large and small. The infusion tube II (507) is located in the large compartment of the connecting tube (901), and the partition plate (902) is provided in the large compartment of the connecting tube (901). ) is provided with an opening on the top inclined plate, and a one-way valve I (903) is installed at the opening of the partition plate (902). The one-way valve I (903) only allows gas to flow from the small compartment of the connecting pipe (901) into the large compartment. An air pump II (904) is installed on the mounting frame (502). The air outlet of the air pump II (904) is connected to the small compartment of the connecting pipe (901) through a pipeline. A plurality of openings are opened on the top of the connecting pipe (901), and the plurality of openings of the connecting pipe (901) are connected to the infusion pipe I (407) through a hose (907).

2. A pile cutter for preventing splash damage for construction engineering according to claim 1, characterized in that: The invention also comprises a cutting assembly (7), wherein the cutting assembly (7) comprises an electric push rod I (701), a guide frame (702), a sliding block (703) and a cutting wheel I (704), wherein two electric push rods I (701) are symmetrically mounted on the outer wall of the outer shell (1), a guide frame (702) is symmetrically connected between the outer shell (1) and the inner shell (3), a sliding block (703) is slidably mounted inside the guide frame (702), and a cutting wheel I (704) is electrically mounted on the sliding block (703).

3. A pile cutter for preventing splash damage for construction engineering according to claim 2, characterized in that: The cutting assembly (7) further comprises a servo motor III (705) and a cutting wheel II (706); the limit blocks (602) are each mounted with a servo motor III (705); and the cutting wheel II (706) is mounted on an output shaft of the servo motor III (705).

4. A pile cutter for preventing splash damage for construction engineering according to claim 3, characterized in that: The inner shell (3) is provided with a heating element (8), the heating element (8) comprising a heating tube (801), a heater (802) and an air pump I (803); the top of the inner shell (3) is provided with a heating tube (801), the bottom of the heating tube (801) is provided with a plurality of nozzles; the top of the inner shell (3) is provided with a heater (802), the heating tube (801) and the heater (802) are connected; the top of the inner shell (3) is also provided with an air pump I (803), the air pump I (803) and the heater (802) are connected.

5. A pile cutter for preventing splash damage for construction engineering according to claim 4, characterized in that: The infusion assembly (9) further comprises a hydraulic pump I (905) and a one-way valve II (906). The mounting frame (502) is further mounted with a hydraulic pump I (905). The liquid outlet of the hydraulic pump I (905) is connected to the large compartment of the connecting pipe (901) through a pipeline. The liquid inlet of the hydraulic pump I (905) is connected to an input source of the expansion agent. A one-way valve II (906) is arranged at the top of the infusion pipe II (507). The one-way valve II (906) only allows fluid to flow from the connecting pipe (901) into the infusion pipe II (507).

6. A pile cutter for preventing splash damage for construction engineering according to claim 5, characterized in that: The housing (1) is provided with a sealing assembly (10), the sealing assembly (10) comprising a storage frame (101), a hydraulic pump II (102), an electric push rod II (103), a sliding rod (104) and a nozzle (105). An annular storage frame (101) is installed on the outer wall of the housing (1). The storage frame (101) is circumferentially connected with hydraulic pumps II (102) of the same number as the hydraulic cylinders I (402). The liquid inlet of the hydraulic pump II (102) and the storage frame are connected to each other. (101) is connected, and the side wall of the housing (1) is circumferentially mounted with electric push rods II (103) whose number is the same as the number of the hydraulic cylinders I (402), and the push rods of the electric push rods II (103) are all connected with sliding rods (104), and the ends of the sliding rods (104) are mounted with nozzles (105), and the nozzles (105) are annular and the drill bit I (406) is located inside the nozzles, and the liquid outlet of the hydraulic pump II (102) is connected with the nozzles (105) through a pipeline.

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