Cast-in-place pile all-in-one machine for engineering

Abstract

The invention relates to the technical field of pile foundation construction, in particular to an engineering cast-in-place pile all-in-one machine which comprises a main rod and a drilling unit installed at the end of the main rod, the main rod is used for providing power for drilling work of the drilling unit, and the drilling unit comprises an outer cylinder arranged on the outer side of the main rod in a sleeving mode and used for providing power for drilling work of the drilling unit. The fixing rod and the main rod are relatively fixed; the drilling unit is used as the isolation layer, when the drilling unit ascends, soil above the drilling unit can be directly pushed upwards and brought out of the pile hole, and therefore a large amount of soil can be cleaned out at a time, the single-time drilling depth of the drilling unit can be greatly increased, the pile hole machining period can be shortened, and the pile hole machining efficiency can be improved. Meanwhile, the drilling unit only needs to push the soil upwards, and other operations such as opening and closing are not needed for the drilling unit, so that the operation is simpler and more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of pile foundation construction, and particularly to a cast-in-place pile machine for engineering use. Background Art

[0002] During the pile foundation construction process, according to the type of pile, the construction method can be divided into precast pile construction and cast-in-place pile construction. In precast pile construction, the prefabricated pile columns are directly driven into the ground by means of hammering, vibration or static pressure. In cast-in-place pile construction, a pile hole is drilled on the ground by a pile machine, and then a cement slurry is sprayed onto the inner wall of the pile hole by a shotcreting machine. By utilizing the reinforcement effect of the cement slurry on the inner wall of the pile hole, the collapse of the hole is avoided. After that, a prefabricated steel reinforcement cage is placed into the pile hole, and concrete is poured into the pile hole through a conduit, thereby forming a pile body.

[0003] When using the cast-in-place pile construction method, due to the relatively deep pile hole, the drill bit on the pile machine needs to have an inner cavity to hold the soil generated during drilling. And the pile machine needs to repeatedly lift and lower the drill bit to carry the soil to the ground to clean the pile hole. When the drill bit is lifted to the ground, it also needs to be controlled by workers or machinery to open the drill bit to export the soil inside. Due to the above-mentioned numerous repeated steps, the distance that the drill bit advances each time is limited, seriously affecting the project progress. Summary of the Invention

[0004] The present invention provides a cast-in-place pile machine for engineering use, which can effectively solve the problems in the background art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A cast-in-place pile machine for engineering use, including a main rod and a drilling unit installed at the end of the main rod. The main rod is used to provide power for the drilling work of the drilling unit. The drilling unit includes: An outer cylinder, sleeved outside the main rod and relatively fixed to the main rod; An excavation part, installed on the outer cylinder and used for excavating soil; A conveying part, used to convey the excavated soil upward. The conveying part is a plurality of spirals circumferentially distributed around the axis of the main rod, and the spirals are used to connect the main rod and the outer cylinder; An intercepting part, used to allow the excavated soil to be conveyed upward unidirectionally. The intercepting part is a plurality of sealing bodies circumferentially distributed around the axis of the main rod, and the sealing bodies are allowed to be opened unidirectionally; A slurry spraying part, installed on the outer cylinder and used to spray a curing slurry onto the inner wall of the drill hole.

[0006] In some embodiments of the present invention, the excavation part is several plate bodies installed at the end of the outer cylinder and crushing bodies rotatably arranged on each of the plate bodies, and crushing teeth are densely distributed on each of the crushing bodies.

[0007] In some embodiments of the present invention, each of the plate bodies is inclined towards the axis of the main rod, and the moving range of each of the crushing bodies extends beyond the rotation area of the outer cylinder.

[0008] In some embodiments of the present invention, saw teeth are arranged at the end of the spiral body towards the crushing body.

[0009] In some embodiments of the present invention, shovels are arranged on the outer cylinder between two adjacent crushing bodies, several spiral edges are arranged on the outer wall of the outer cylinder, and the spiral edges are docked with the shovels.

[0010] In some embodiments of the present invention, the grouting part includes several feeding pipes located inside the outer cylinder and several material receiving grooves installed on the inner wall of the outer cylinder. The feeding pipes are communicated with the corresponding material receiving grooves, several discharging holes are opened on the side wall of the material receiving grooves, and each of the discharging holes extends to the outer wall of the outer cylinder.

[0011] In some embodiments of the present invention, the main rod is hollow, and several docking holes are opened on the outer wall of the main rod. The docking holes are communicated with the corresponding feeding pipes; The end of the main rod corresponding to the outer cylinder is open, and a sealing cone is encapsulated at the opening position. The sealing cone is allowed to move along the axis direction of the main rod; Wherein, a guiding unit is arranged in the main rod for controlling the cured slurry in the main rod to flow out through the docking holes or the opening at the end of the main rod.

[0012] In some embodiments of the present invention, the guiding unit includes an isolation hopper and an isolation cylinder installed in the main rod. A movable sleeve is slidably inserted in the isolation cylinder. One end of the movable sleeve is slidably sleeved on the isolation hopper, and several side ports are opened at the other end of the movable sleeve; A separating ring is arranged between the isolation hopper and the isolation cylinder, and the separating ring is relatively fixed to the movable sleeve. A first air conveying channel and a second air conveying channel are opened in the main rod. The space between the separating ring and the isolation cylinder is communicated with the first air conveying channel, and the space between the separating ring and the isolation hopper is communicated with the second air conveying channel; Wherein, the side ports are communicated with the space on any side of the isolation cylinder.

[0013] In some embodiments of the present invention, the isolation hopper and the separating ring are connected by several elastic bodies.

[0014] In some embodiments of the present invention, the all-in-one machine further includes a mobile station, the main rod is rotatably installed on the mobile station, an annular groove body is sleeved on the outer wall of the main rod, the first air delivery channel is communicated with the inside of the annular groove body, the second air delivery channel is communicated with the outside of the annular groove body, and the annular groove body is fixed on the mobile station; A pump body is arranged on the mobile station, and the output end of the pump body is communicated with the inside of the annular groove body.

[0015] Through the technical solution of the present invention, the following technical effects can be achieved: By using the drilling unit as an isolation layer, when the drilling unit rises, the soil above it can be directly pushed upward and taken out of the pile hole, so that a large amount of soil can be cleared at one time, which can greatly increase the single drilling depth of the drilling unit, shorten the pile hole processing cycle. At the same time, since the drilling unit only needs to push the soil upward and does not need to perform other operations such as opening and closing, its operation is simpler; since the drilling unit only needs to excavate and push the soil on its lower side to its upper side, and the drilling unit only needs to act as an isolation layer when moving upward, the thickness of the drilling unit is allowed to be smaller, which can reduce the overall weight and volume of the drilling unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the drilling unit in the embodiment of the present invention; Figure 3 is Figure 2 the structural schematic diagram from another perspective; Figure 4 is the exploded structural schematic diagram of the main rod and the drilling unit in the embodiment of the present invention; Figure 5 is the sectional structural schematic diagram of the drilling unit in the embodiment of the present invention; Figure 6 is the partial sectional structural schematic diagram of the main rod in the embodiment of the present invention; Figure 7 is the exploded structural schematic diagram of the diversion unit in the embodiment of the present invention; Figure 8 is the structural schematic diagram of the mobile station in the embodiment of the present invention; Figure 9 It is a schematic cross-sectional structure diagram of a mobile station in an embodiment of the present invention.

[0018] Reference numerals: 100, main rod; 200, drilling unit; 201, outer cylinder; 202, spiral body; 203, sealing body; 204, limiting protrusion; 205, plate body; 206, crushing body; 207, saw tooth; 208, spiral edge; 209, shovel; 210, material conveying pipe; 211, material storage tank; 212, discharge hole; 213, docking hole; 214, sealing cone; 300, diversion unit; 301, isolation hopper; 302, isolation cylinder; 303, movable sleeve; 304, partition ring; 305, side port; 306, elastic body; 307, first gas transmission channel; 308, second gas transmission channel; 309, first chamber; 310, second chamber; 400, mobile station; 401, transmission ring; 402, pressure wheel; 403, motor; 404, transmission wheel; 405, annular groove body; 406, pump body. Specific embodiments

[0019] 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.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0021] As Figures 1 to 5 shown, an engineering bored pile integrated machine of the present invention includes a main rod 100 and a drilling unit 200 installed at the end of the main rod 100. The main rod 100 is used to provide power for the drilling work of the drilling unit 200. The drilling unit 200 includes: An outer cylinder 201, sleeved outside the main rod 100 and relatively fixed to the main rod 100; An excavation part, installed on the outer cylinder 201, for excavating soil; A conveying part, for conveying the excavated soil upward. The conveying part is a plurality of spiral bodies 202 circumferentially distributed around the axis of the main rod 100, and the spiral bodies 202 are used to connect the main rod 100 and the outer cylinder 201; The intercepting part is used to allow the excavated soil to be conveyed upward unidirectionally. The intercepting part is composed of a number of sealing bodies 203 circumferentially distributed around the axis of the main rod 100, and the sealing bodies 203 are allowed to be opened unidirectionally. The slurry spraying part is installed on the outer cylinder 201 and is used to spray the solidifying slurry onto the inner wall of the drill hole.

[0022] In the present invention, the main rod 100 can move up and down and rotate. In this way, the main rod 100 can drive the drilling unit 200 to move synchronously, so as to provide power for the drilling unit 200 to drill into the ground. The moving power of the main rod 100 can be provided by equipment such as hydraulic pressure and motors. The cross-sectional shape of the main rod 100 can be any shape such as polygon and circle, and the main rod 100 can be spliced and combined. That is, when the drilling unit 200 drills into the ground to a certain depth and the length of the main rod 100 is insufficient, it can be butt-jointed and combined with other main rods 100. Of course, during normal use, if the length of the main rod 100 meets the construction requirements, it does not need to be combined. The drilling unit 200 is used to drill into the ground and form a pile hole. The outer cylinder 201 on the drilling unit 200 is mainly used to support the excavation part, conveying part, intercepting part and slurry spraying part thereon, and the outer wall of the outer cylinder 201 can contact the inner wall of the pile hole. The excavation part can crush and excavate the soil when the drilling unit 200 rotates and drills, so as to facilitate the smooth drilling of the drilling unit 200 into the ground. The structure of the excavation part can be fixed teeth or rotating teeth that can rotate in at least one direction. The conveying part can convey the soil excavated by the excavation part upward through the space between the outer cylinder 201 and the main rod 100, so as to reduce the amount of soil around the excavation part and reduce the excavation difficulty. Specifically, a number of spiral bodies 202 can be used to convey the soil. At the same time, the spiral bodies 202 can also connect the main rod 100 and the outer cylinder 201. For the parameters such as the number of spiral bodies 202 and the pitch, they can be determined according to the actual situation. The intercepting part can be installed at the top of the outer cylinder 201. When the spiral bodies 202 convey the soil upward, the soil can push the intercepting part to open, so that the soil can move above the intercepting part. The setting of the intercepting part can prevent the soil above from entering the outer cylinder 201 reversely downward, thereby realizing the aggregation and isolation of the soil. Specifically, the intercepting part can adopt the structural form of a number of sealing bodies 203. A number of sealing bodies 203 are annularly distributed around the main rod 100. One end of the sealing body 203 contacts the outer wall of the main rod 100, and the other end of the sealing body 203 is rotatably installed on the outer cylinder 201. And a number of limiting protrusions 204 for limiting and supporting each sealing body 203 can be arranged on the inner wall of the outer cylinder 201. When the sealing body 203 contacts the limiting protrusion 204, a number of sealing bodies 203 form a disc shape and block the top of the outer cylinder 201. An elastic structure can also be arranged between the sealing body 203 and the outer cylinder 201 to provide a reset elastic force for the sealing body 203. It should be noted that since the drilling unit 200 continuously moves downward during drilling, the conveying part can continuously move the soil to the vacant area above the outer cylinder 201, so that the soil accumulated above the outer cylinder 201 will not cause a great obstacle to the opening operation of the sealing body 203; since when several sealing bodies 203 are opened, some soil will pass through the gap between two adjacent sealing bodies 203, when several sealing bodies 203 are closed, this part of the soil will interfere with the closing operation of the sealing body 203, and the downward pressure of the soil above the outer cylinder 201 on the sealing body 203 can squeeze out the soil between two adjacent sealing bodies 203, so that the sealing body 203 can be normally closed. Even if the sealing body 203 cannot be completely closed, the sealing body 203 can still block and isolate the soil; During actual use, the main rod 100 will drive the drilling unit 200 to move synchronously. The excavating part on the drilling unit 200 will damage the soil so that the drilling unit 200 can normally drill into the ground. During drilling, the soil broken by the excavating part is conveyed upward to the area above the outer cylinder 201 through the rotational conveying movement of several spiral bodies 202, and the sealing body 203 is opened due to the extrusion of the soil. As the drilling unit 200 continues to drill, the soil above the drilling unit 200 gradually increases. When the drilling unit 200 moves a specified distance, the main rod 100 moves upward. At this time, the main rod 100 drives the drilling unit 200 to move upward synchronously. The drilling unit 200 can use several sealing bodies 203 thereon to push the soil above the drilling unit 200 upward. At this time, the drilling unit 200 can be used as an isolation layer, and the loose soil excavated is pushed upward to the ground by using this isolation layer to realize the cleaning work of the pile hole. This part of the soil scatters around near the ground pile opening. Then the main rod 100 continues to move downward and drills through the drilling unit 200. Repeat this way to realize the pile hole processing work; during the drilling process, since the inner wall of the pile hole is also a soil layer, in order to avoid the phenomenon of hole collapse, the grouting part can be used to spray the solidifying slurry on the inner wall of the pile hole to improve the stability of the pile hole, and the working time of the grouting part can be at least one process of the drilling unit 200 drilling or moving upward; The solidifying slurry mentioned above can be concrete, mortar mixture or mixed slurry containing a quick-setting agent, etc.; By using the drilling unit 200 as an isolation layer, when the drilling unit 200 ascends, the soil above it can be directly pushed upward and carried out of the pile hole, so that a large amount of soil can be cleared at one time. This can greatly increase the single drilling depth of the drilling unit 200 and shorten the pile hole processing cycle. At the same time, since the drilling unit 200 only needs to push the soil upward and does not need to perform other operations such as opening and closing, its operation is more convenient; since the drilling unit 200 only needs to excavate and push the soil on its lower side to its upper side, and the drilling unit 200 only needs to act as an isolation layer when moving upward, the thickness of the drilling unit 200 is allowed to be smaller, which can reduce the overall weight and volume of the drilling unit 200.

[0023] Optimized based on the above implementation, the excavation part is several plate bodies 205 installed at the end of the outer cylinder 201 and crushing bodies 206 rotatably arranged on each plate body 205, and crushing teeth are densely distributed on each crushing body 206; The plate body 205 can be fixed to the outer cylinder 201 by welding or other means, and the plate body 205 is mainly used to support the crushing body 206 thereon. The crushing body 206 and the crushing teeth thereon are mainly used to crush the soil. Since the crushing body 206 can rotate on the plate body 205, the shape of the crushing body 206 can be set as a sphere, and the rotational setting of the crushing body 206 can realize the rolling and crushing treatment of the soil. Compared with the hard extrusion crushing method, the rolling and crushing is easier to break the hard objects in the soil, thereby reducing the excavation difficulty; the crushing teeth can be any shape structures such as cones and convex teeth; Since the crushed soil needs to be conveyed by the spiral body 202, several crushing bodies 206 can adopt the installation method as Figure 3 shown. Several crushing bodies 206 are distributed at the circumferential position of the end face of the outer cylinder 201. When the drilling unit 200 excavates the soil, several crushing bodies 206 can first damage the soil from the outer side position of the excavation area and can first delineate the excavation range, so that the inner soil can be loosened, the connection between the inner soil and the outer soil can be damaged, and it is convenient to excavate the inner soil. After that, the inner soil can be directly shoveled and excavated through the end of the spiral body 202.

[0024] Since during excavation, if the diameter of the pile hole is the same as the diameter of the outer cylinder 201, that is, the outer wall of the outer cylinder 201 contacts the inner wall of the pile hole, the friction between them will affect the drilling work of the drilling unit 200 and a greater force needs to be provided for the drilling unit 200, which will cause an increase in the energy consumption. To avoid this phenomenon, it can be adopted as Figure 3In the manner shown, each plate body 205 inclines towards the axis of the main rod 100, and the movement range of each crushing body 206 extends beyond the rotation area of the outer cylinder 201; from the above, it can be seen that the area of the working area of the crushing body 206 is larger than the area of the outer cylinder 201. In this way, the diameter of the pile hole formed when the crushing body 206 excavates the soil will be slightly larger than the diameter of the outer cylinder 201, that is, there will be a small gap between the inner wall of the pile hole and the outer wall of the outer cylinder 201, thus avoiding contact between the outer cylinder 201 and the inner wall of the pile hole.

[0025] To further reduce the difficulty of excavating the soil at the end of the spiral body 202, the following method can be adopted Figure 3 In the manner shown, the end of the spiral body 202 facing the crushing body 206 is provided with sawteeth 207; by using the sawteeth 207 at the end of the spiral body 202, it is convenient to quickly shovel and excavate the inner soil enclosed by several crushing bodies 206, and it is convenient to break the soil.

[0026] Optimized based on the above implementation, shovels 209 are provided on the outer cylinder 201 between two adjacent crushing bodies 206, and several spiral ribs 208 are provided on the outer wall of the outer cylinder 201, and the spiral ribs 208 are docked with the shovels 209; In the present invention, the spiral ribs 208 are arranged between the inner wall of the pile hole and the outer wall of the outer cylinder 201. When the outer cylinder 201 rotates, the spiral ribs 208 can push the loose soil located between the outer cylinder 201 and the inner wall of the pile hole upward, thus preventing the soil from accumulating and solidifying between the outer cylinder 201 and the inner wall of the pile hole and reducing the drilling difficulty of the drilling unit 200; since the working area of the crushing body 206 is larger than the coverage range of the outer cylinder 201, part of the soil crushed by the crushing body 206 will be located outside the outer cylinder 201. By providing the shovels 209, this part of the soil can be shoveled and pushed upward to the position of the spiral ribs 208, thereby facilitating the timely cleaning of this part of the soil.

[0027] Optimized based on the above implementation, as Figure 5As shown in the figure, the shotcreting part includes a plurality of material conveying pipes 210 located inside the outer cylinder 201 and a plurality of material storage grooves 211 installed on the inner wall of the outer cylinder 201. The material conveying pipes 210 are communicated with the corresponding material storage grooves 211. A plurality of discharge holes 212 are formed on the side wall of the material storage groove 211, and each discharge hole 212 extends to the outer wall of the outer cylinder 201. The solidified slurry can be introduced into the material storage groove 211 through the material conveying pipe 210, and the solidified slurry in the material storage groove 211 is then sprayed outward onto the inner wall of the pile hole through a plurality of discharge holes 212. Since the material storage groove 211 and the plurality of discharge holes 212 are both located on the outer cylinder 201, the spraying timing of the solidified slurry is during the excavation of the drilling unit 200 or when the drilling unit 200 moves upward. And by using the shielding effect of the drilling unit 200 on the soil above or below it, it is convenient to make as much slurry as possible adhere to the inner wall of the pile hole. Since the outer cylinder 201 is always in a rotating state, in order to prevent soil from entering the discharge holes 212, the discharge holes 212 can be inclinedly arranged.

[0028] Optimized based on the above implementation, such as Figure 4 and Figure 6 As shown in the figure, the main rod 100 is hollow, and a plurality of docking holes 213 are formed on the outer wall of the main rod 100. The docking holes 213 are communicated with the corresponding material conveying pipes 210. The end of the main rod 100 corresponding to the outer cylinder 201 is open, and a sealing cone 214 is encapsulated at the opening position. The sealing cone 214 is allowed to move along the axis direction of the main rod 100. Among them, a diversion unit 300 for controlling the outflow of the solidified slurry in the main rod 100 through the docking holes 213 or the opening at the end of the main rod 100 is arranged in the main rod 100. In the present invention, the hollow setting of the main rod 100 is mainly used to convey the solidified slurry. The docking holes 213 on the main rod 100 can be communicated with the material conveying pipes 210. The opening at the bottom of the main rod 100 can be used to make the solidified slurry flow downward to the bottom of the pile hole after the pile hole is excavated, so as to form a protective layer at the bottom of the hole and realize the pre-hardening treatment of the bottom of the hole. When the drilling unit 200 drills forward, due to the reverse thrust of the soil, the sealing cone 214 keeps the opening at the bottom of the main rod 100 blocked to prevent soil from entering the main rod 100. When the drilling unit 200 moves upward, the sealing cone 214 separates from the soil, and at this time, the sealing cone 214 can separate from the main rod 100. In some embodiments, an elastic structure can also be arranged between the sealing cone 214 and the main rod 100, so that the sealing cone 214 keeps the opening at the bottom of the main rod 100 blocked. Only when the pressure in the main rod 100 is relatively large, the sealing cone 214 is pushed open by the pressure. The diversion unit 300 is mainly used to control the flow direction of the solidified slurry, and at the same time point, the solidified slurry can only flow out from one of the docking holes 213 or the opening at the bottom of the main rod 100.

[0029] Optimized based on the above implementation, such asFigures 6 to 7 As shown, the diversion unit 300 includes an isolation hopper 301 and an isolation cylinder 302 installed in the main rod 100. An activity sleeve 303 is slidably inserted into the isolation cylinder 302. One end of the activity sleeve 303 is slidably sleeved on the isolation hopper 301, and a plurality of side ports 305 are formed at the other end of the activity sleeve 303; A separation ring 304 is arranged between the isolation hopper 301 and the isolation cylinder 302, and the separation ring 304 is relatively fixed to the activity sleeve 303. A first gas transmission channel 307 and a second gas transmission channel 308 are formed in the main rod 100. The space between the separation ring 304 and the isolation cylinder 302 is communicated with the first gas transmission channel 307, and the space between the separation ring 304 and the isolation hopper 301 is communicated with the second gas transmission channel 308; Wherein, the side port 305 is communicated with the space on any side of the isolation cylinder 302; In the present invention, the isolation hopper 301 and the isolation cylinder 302 are both fixed to the inner wall of the main rod 100. The separation ring 304 is movably arranged between the isolation hopper 301 and the isolation cylinder 302. The space between the isolation hopper 301 and the separation ring 304 can be defined as the first chamber 309, and the first chamber 309 communicates with the second gas transmission channel 308. The space between the isolation cylinder 302 and the separation ring 304 can be defined as the second chamber 310, and the second chamber 310 communicates with the first gas transmission channel 307. The movable sleeve 303 slides through the isolation cylinder 302, and the top of the movable sleeve 303 is slidably connected to the first chamber 309. In the natural state, the side port 305 is located below the isolation cylinder 302. The separation ring 304 blocks the docking hole 213, and a retaining ring can be arranged on the outer wall of the movable sleeve 303. Through the abutting effect of the retaining ring and the isolation cylinder 302, the limit of the movable sleeve 303 is realized. The solidifying slurry in the main rod 100 can be introduced into the movable sleeve 303 through the isolation hopper 301. The solidifying slurry in the movable sleeve 303 is introduced into the lower space of the isolation cylinder 302 through a plurality of side ports 305. The solidifying slurry can push the sealing cone 214 to open and be discharged through the bottom opening of the main rod 100. When the first gas transmission channel 307 inflates the second chamber 310, the internal air pressure of the second chamber 310 increases and pushes the separation ring 304 to move upward. The separation ring 304 drives the movable sleeve 303 to move upward synchronously. The side port 305 moves upward into the second chamber 310. At this time, the separation ring 304 is separated from the docking hole 213. The air in the first chamber 309 can be discharged through the second gas transmission channel 308. The second chamber 310 communicates with the feed pipe 210 through the docking hole 213. The solidifying slurry in the movable sleeve 303 is introduced into the second chamber 310 through the side port 305. The solidifying slurry in the second chamber 310 is introduced into the material receiving tank 211 through the docking hole 213 and the feed pipe 210, thereby realizing the conveying control of the solidifying slurry. By adopting the method of inflating, high-pressure gas can be mixed with the solidifying slurry and sprayed out through the discharge hole 212, thereby increasing the spraying speed of the solidifying slurry, facilitating the deeper penetration of the solidifying slurry into the soil layer on the inner wall of the pile hole, and this method can reduce the blocking effect of a small amount of soil between the outer cylinder 201 and the inner wall of the pile hole on the solidifying slurry.

[0030] Optimized based on the above implementation, as Figure 7 As shown, the isolation hopper 301 and the separation ring 304 are connected by a plurality of elastic bodies 306. To realize the reset work of the movable sleeve 303 in the natural state, the elastic bodies 306 can be used to provide elastic force to the separation ring 304 so that the retaining ring on the movable sleeve 303 contacts the isolation cylinder 302. At this time, the side port 305 remains in a state of communicating with the lower space of the isolation cylinder 302.

[0031] Optimized based on the above implementation, as Figures 8 to 9As shown, the all-in-one machine further includes a mobile station 400. The main rod 100 is rotatably mounted on the mobile station 400. An annular groove body 405 is sleeved on the outer wall of the main rod 100. The first gas transmission channel 307 is communicated with the inside of the annular groove body 405, and the second gas transmission channel 308 is communicated with the outside of the annular groove body 405. The annular groove body 405 is fixed to the mobile station 400. A pump body 406 is arranged on the mobile station 400, and the output end of the pump body 406 is communicated with the inside of the annular groove body 405. In the present invention, the mobile station 400 can support the main rod 100. The up and down movement of the mobile station 400 can drive the main rod 100 to move synchronously. To enable the main rod 100 to rotate, a transmission ring 401 can be arranged on the outer wall of the main rod 100, a motor 403 and a transmission wheel 404 can be arranged on the mobile station 400, and the transmission wheel 404 is meshed and connected with the transmission ring 401. In this way, the motor 403 can directly drive the main rod 100 to rotate through the transmission wheel 404 and the transmission ring 401. The up and down movement power of the mobile station 400 can be provided by structures such as an oil cylinder and a motor. To improve the stability of the main rod 100, a plurality of pressure wheels 402 can be arranged on both the upper and lower sides of the transmission ring 401. Through the rotation and clamping work of the pressure wheels 402 on the transmission ring 401, the main rod 100 can operate stably. The pressure wheels 402 can be rotatably mounted on the mobile station 400. In some embodiments, the mobile station 400 can be set to a hollow state, and the various structures on the mobile station 400 can be arranged inside the mobile station 400. Since the annular groove body 405 is fixed on the mobile station 400 and the annular groove body 405 is communicated with the first gas transmission channel 307, when the main rod 100 rotates, the annular groove body 405 and the first gas transmission channel 307 can always maintain a communication state. Specifically, the input end opening of the first gas transmission channel 307 can be opened on the inner side of the annular groove body 405, and the output end opening of the second gas transmission channel 308 can be opened on the outer side of the annular groove body 405. In this way, the pump body 406 can supply gas into the first gas transmission channel 307 through the annular groove body 405, and the gas in the first chamber 309 can be directly exported through the second gas transmission channel 308.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An integral machine for cast-in-place piles in engineering, characterized in that, It includes a main rod and a drilling unit installed at the end of the main rod. The main rod is used to provide power for the drilling work of the drilling unit. The drilling unit includes: An outer cylinder sleeved outside the main rod and relatively fixed to the main rod; An excavation part installed on the outer cylinder for excavating soil; A conveying part for upwardly conveying the excavated soil. The conveying part is a plurality of spirals circumferentially distributed around the axis of the main rod, and the spirals are used to connect the main rod and the outer cylinder; An intercepting part for allowing the excavated soil to be conveyed upward unidirectionally. The intercepting part is a plurality of sealing bodies circumferentially distributed around the axis of the main rod, and the sealing bodies are allowed to be opened unidirectionally; A slurry spraying part installed on the outer cylinder for spraying solidifying slurry onto the inner wall of the drill hole.

2. The all-in-one bored pile machine for engineering according to claim 1, wherein, The excavation part is a plurality of plate bodies installed at the end of the outer cylinder and crushing bodies rotatably arranged on each of the plate bodies. Crushing teeth are densely arranged on each of the crushing bodies.

3. The integral machine for cast-in-place piles for engineering according to claim 2, characterized in that, Each of the plate bodies is inclined towards the axis of the main rod, and the movement range of each of the crushing bodies extends beyond the rotation area of the outer cylinder.

4. The all-in-one bored pile machine for engineering according to claim 2, wherein The end of the spiral towards the crushing body is provided with sawteeth.

5. The integral bored pile machine for engineering according to claim 2, characterized in that, Shovels are arranged on the outer cylinder between two adjacent crushing bodies, and a plurality of spiral ridges are arranged on the outer wall of the outer cylinder, and the spiral ridges are docked with the shovels.

6. The integral bored pile machine for engineering according to claim 1, characterized in that, The slurry spraying part includes a plurality of material conveying pipes located inside the outer cylinder and a plurality of material storage grooves installed on the inner wall of the outer cylinder. The material conveying pipes are communicated with the corresponding material storage grooves. A plurality of discharging holes are opened on the side wall of the material storage groove, and each of the discharging holes extends to the outer wall of the outer cylinder.

7. The integral bored pile machine for engineering according to claim 6, characterized in that, The main rod is hollow, and a plurality of docking holes are opened on the outer wall of the main rod. The docking holes are communicated with the corresponding material conveying pipes; The end of the main rod corresponding to the outer cylinder is open, and a sealing cone is encapsulated at the opening position. The sealing cone is allowed to move along the axis direction of the main rod; Wherein, a guiding unit is arranged inside the main rod for controlling the solidifying slurry inside the main rod to flow out through the docking holes or the opening at the end of the main rod.

8. The all-in-one bored pile machine for engineering according to claim 7, characterized in that, The guiding unit includes an isolation hopper and an isolation cylinder installed inside the main rod. An activity sleeve is slidably inserted inside the isolation cylinder. One end of the activity sleeve is slidably sleeved on the isolation hopper, and a plurality of side ports are opened at the other end of the activity sleeve; A partition ring is arranged between the isolation hopper and the isolation cylinder, and the partition ring is relatively fixed to the activity sleeve. A first air conveying channel and a second air conveying channel are opened inside the main rod. The space between the partition ring and the isolation cylinder is communicated with the first air conveying channel, and the space between the partition ring and the isolation hopper is communicated with the second air conveying channel; Wherein, the side ports are communicated with the space on any side of the isolation cylinder.

9. The all-in-one bored pile machine for engineering according to claim 8, characterized in that, The isolation hopper and the partition ring are connected by a plurality of elastic bodies.

10. The integral machine for cast-in-place piles for engineering according to claim 8, characterized in that, The integrated machine further includes a mobile platform. The main rod is rotatably installed on the mobile platform. An annular groove body is sleeved on the outer wall of the main rod. The first air conveying channel is communicated with the inside of the annular groove body, and the second air conveying channel is communicated with the outside of the annular groove body. The annular groove body is fixed on the mobile platform; A pump body is arranged on the mobile platform, and the output end of the pump body is communicated with the inside of the annular groove body.

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