Omnibearing high-pressure jet construction method pile drilling gushing prevention device

Abstract

The invention discloses an all-directional high-pressure jet construction method pile drilling gushing prevention device which comprises a chassis, a gushing prevention assembly is arranged on the chassis, and a butt joint assembly is arranged between the chassis and the gushing prevention assembly. The butt joint assembly comprises a supporting frame, a bearing ring is arranged on the supporting frame, and a plurality of annularly-distributed protruding rods are fixedly installed at the top of the bearing ring. The outer walls of the protruding rods are sleeved with the same supporting frame, a laser lamp is fixedly installed in the center of the bottom of the supporting frame, and the center of the laser lamp and the center of the annular structure formed by the multiple protruding rods are located on the same axis. The blowout prevention assembly comprises a main pipe, the bottom end of the main pipe is in sealed connection with the butt joint assembly through a sealing piece, the top end of the main pipe is sequentially in flange connection with an adapter pipe a and an adapter pipe b, and a plurality of soft rubber water stop pieces for sealing the outer wall of the drill rod are installed on the inner wall of the adapter pipe b. According to the invention, through split type laser alignment installation, the accuracy of installation alignment is improved; and modular sealing is combined, so that the anti-gushing efficiency and reliability of all-dimensional high-pressure jet construction method pile drilling are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of blowout and gushing prevention, and relates to a full-range high-pressure jet method pile drilling blowout and gushing prevention device. BACKGROUND

[0002] The full-range high-pressure jet method pile is based on the traditional high-pressure jet grouting process, adopts a unique multi-hole pipe and a front-end forming device to realize forced slurry discharge in the hole and in-situ pressure monitoring, and controls the in-situ pressure by adjusting the forced slurry discharge amount, so that the deep mud discharge and in-situ pressure are reasonably controlled to ensure the stability of the in-situ pressure. When drilling or jet grouting in a pressure-bearing water stratum, the phenomenon of hole mouth sand gushing or slurry leakage often occurs, which endangers the safety of construction.

[0003] When installing the blowout and gushing prevention device, the center of the device needs to be aligned with the center of the drilling hole so that they are on the same axis. However, the existing blowout and gushing prevention devices are generally of an integrated structure, which is relatively large, and thus it is relatively difficult to align during installation, thereby increasing the difficulty of the device installation for the workers.

[0004] Therefore, it is necessary to provide a new full-range high-pressure jet method pile drilling blowout and gushing prevention device to solve the above technical problems. SUMMARY

[0005] In order to solve the above problems, the present application provides a full-range high-pressure jet method pile drilling blowout and gushing prevention device, which improves the accuracy of installation alignment through split laser alignment installation, and improves the blowout and gushing prevention efficiency and reliability of the full-range high-pressure jet method pile drilling by combining modular sealing.

[0006] The technical scheme adopted by the present application is a full-range high-pressure jet method pile drilling blowout and gushing prevention device, comprising a chassis, a blowout prevention assembly is arranged on the chassis, and a butt joint assembly for installing and positioning the blowout prevention assembly is arranged between the chassis and the blowout prevention assembly; The butt joint assembly comprises a support frame fixedly installed on the chassis, and a supporting ring is arranged on the support frame, which can move horizontally or vertically in the horizontal plane. A plurality of convex rods are fixedly installed on the top of the supporting ring in a ring shape. A same support frame is arranged on the outer wall of the plurality of convex rods, a laser lamp is fixedly installed at the center of the bottom of the support frame, and the center of the laser lamp is on the same axis as the center of the ring-shaped structure formed by the plurality of convex rods. The blowout prevention assembly comprises a main pipe, the bottom end of the main pipe is sealingly connected with the butt joint assembly through a sealing sheet, the top end of the main pipe is flange-connected with an adapter pipe a and an adapter pipe b in sequence, and a plurality of soft rubber water stop sheets for sealing the outer wall of the drill pipe are installed on the inner wall of the adapter pipe b.

[0007] Furthermore, a guide assembly is provided at the top of the transfer tube b, and the guide assembly includes a mounting seat, which is connected to the top flange of the transfer tube b. A rotatably connected mounting cylinder is installed on the top of the mounting seat, and two sets of staggered transverse guide rollers and longitudinal guide rollers are provided on the inner wall of the mounting cylinder. The transverse guide rollers and the longitudinal guide rollers are respectively abutted against the outer wall of the drill rod for guiding the drill rod.

[0008] Furthermore, each group of the transverse guide rollers and longitudinal guide rollers consists of four, which are symmetrically distributed inside the mounting tube. The longitudinal guide roller is located between the transverse guide rollers. The transverse guide rollers and the longitudinal guide rollers are staggered in the axial direction. The ends of the transverse guide rollers and the longitudinal guide rollers are rotatably connected to the inner wall of the mounting tube.

[0009] Furthermore, a fixedly connected support tube is installed on the chassis, and a through hole is opened in the center of the chassis. The diameter of the through hole is smaller than the diameter of the end of the docking tube. The distance from the top of the chassis to the top of the support tube is the same as the distance from the bottom of the sealing plate to the bottom of the docking tube. The top of the chassis is against the bottom end of the docking tube, and the top of the support tube is against the top of the sealing plate.

[0010] Furthermore, a through hole is opened on the support frame at a position corresponding to the protruding rod, and the inner wall of the through hole is abutted against and slidably connected to the outer wall of the protruding rod; a plurality of annularly distributed docking holes are opened on the sealing plate at a position corresponding to the protruding rod, and the inner wall of the docking hole is abutted against and slidably connected to the outer wall of the protruding rod, and a docking tube connected to the blowout prevention assembly is provided in the center of the sealing plate.

[0011] Furthermore, an annular mounting groove is provided at the inner bottom of the adapter tube b, and a plurality of annularly distributed slots are provided on the inner wall of the adapter tube b, and the mounting groove, the slots and the positioning grooves are connected to each other; a plurality of support rings are inserted into the interior of the adapter tube b, and the lowest support ring is placed in the mounting groove, and a plurality of fixedly connected and annularly distributed insertion strips are provided on the outer wall of the support ring, and the insertion strips extend into the slots and are slidably connected, and the inner wall of the support ring is fixedly connected to the outer wall of the soft rubber water stop.

[0012] Furthermore, an annular positioning groove is provided on the inner top of the transfer tube b, and a positioning ring is installed in the positioning groove. A plurality of annularly distributed positioning plugs are fixedly installed on the bottom of the positioning ring. The bottom ends of the positioning plugs are abutted against the top of the uppermost support ring, and the positioning plugs are extended into the slots and slidably connected.

[0013] Furthermore, a fixed connecting ring is installed on the top of the positioning ring, and the connecting ring is fixedly connected to the transfer tube b and the mounting seat by bolts.

[0014] Furthermore, a slurry discharge valve and a slurry supply valve are fixedly installed on the main pipe, a pressure gauge is installed on the side wall of the main pipe near the slurry discharge valve, and a gate valve is installed on the transfer pipe a.

[0015] Further, the top of the support frame is fixedly provided with two groups of symmetrically distributed support blocks a, a rotating connecting screw rod a is arranged between the support blocks a in the same group, a threaded moving block a is arranged on the outer wall of the screw rod a, the top end of the moving block a is fixedly connected with the bottom of an adapter plate, two groups of symmetrically distributed support blocks b are fixedly arranged on the top of the adapter plate, a rotating connecting screw rod b is arranged between the support blocks b in the same group, a threaded moving block b is arranged on the outer wall of the screw rod b, the top end of the moving block b is fixedly connected with the bottom of a supporting ring, and motors for driving the screw rods a and b are fixedly arranged on the outer walls of the support blocks a and b.

[0016] The beneficial effects of the present application are: 1、The annular reference surface formed by the convex rod is coaxial with the laser lamp, so that the main pipe axis and the drilling mark point are quickly coincided, and the problem of low efficiency of manual alignment of large equipment is solved. The supporting ring can drive the convex rod to move horizontally or vertically in the horizontal plane, so that the split type dynamic calibration is realized, and the accuracy of installation and alignment is improved.

[0017] 2、The abutting of the transverse guide roller and the longitudinal guide roller in the guide assembly with the outer wall of the drill rod realizes the guidance of the drill rod inserted into the drill hole; at the same time, since the drill rod moves spirally, in this process, the abutting of the drill rod with the transverse guide roller and the longitudinal guide roller when moving drives the drill rod to rotate, thereby reducing the friction in the process of guiding the drill rod and avoiding rod jamming.

[0018] 3、The soft rubber water stop piece is independently disassembled through the supporting ring, so that when damaged, the entire blowout prevention assembly does not need to be disassembled, the maintenance time is shortened, and the difficulty of later maintenance and repair of the workers is reduced. The sliding cooperation of the insertion bar and the insertion slot realizes the rapid positioning of the supporting ring; the positioning insertion block is inserted into the insertion slot to press the uppermost supporting ring, thereby reducing the influence of drill rod vibration on the sealing effect. The butt joint hole of the sealing piece is tightly matched with the convex rod, the butt joint pipe is press sealed with the bottom disc, and is simultaneously sealed with the top surface of the supporting cylinder, so that three seals are guaranteed to prevent high-pressure slurry leakage. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 The structure schematic diagram of a preferred embodiment of the all-around high-pressure jetting work method pile drill hole blowout prevention device provided by the present application.

[0021] Figure 2 The structure schematic diagram of a preferred embodiment of the all-around high-pressure jetting work method pile drill hole blowout prevention device provided by the present application. Figure 1 Partial cross-sectional structure diagram of the part of the chassis connecting with the docking assembly.

[0022] Figure 3 For Figure 2 Structure diagram of the support frame and its components.

[0023] Figure 4 For Figure 1 Structure diagram of the sealing sheet and its components.

[0024] Figure 5 For Figure 2 Structure diagram of the support frame from the bottom.

[0025] Figure 6 For Figure 1 Structure diagram of the guiding assembly.

[0026] Figure 7 For Figure 1 Structure diagram of the main pipe and its components.

[0027] Figure 8 For Figure 1 Partial cross-sectional structure diagram of the part of the adapter pipe b and its components.

[0028] Figure 9 For Figure 8 Cross-sectional structure diagram of the adapter pipe b.

[0029] Figure 10 For Figure 8 Structure diagram of the connecting ring and its components.

[0030] Label in the figure: 1, chassis; 11, support cylinder; 12, through hole; 2, blowout prevention assembly; 21, main pipe; 211, slurry discharge valve; 212, slurry supplement valve; 213, pressure gauge; 22, adapter pipe a; 221, gate valve; 23, adapter pipe b; 231, mounting groove; 232, insertion groove; 233, positioning groove; 24, connecting ring; 241, positioning ring; 242, positioning insertion block; 25, support ring; 251, insertion strip; 252, soft rubber waterstop sheet; 3, docking assembly; 31, support frame; 311, support block a; 312, screw a; 313, moving block a; 314, adapter plate; 315, support block b; 316, screw b; 317, moving block b; 32, sealing sheet; 321, docking pipe; 322, docking hole; 33, supporting ring; 331, protruding rod; 34, support frame; 341, through hole; 342, laser lamp; 4, guiding assembly; 41, mounting seat; 42, mounting cylinder; 421, transverse guiding roller; 422, longitudinal guiding roller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0032] The embodiment of the present application provides a full-range high-pressure jetting construction pile drilling blowout prevention device, as shown in the drawings, comprising a chassis 1 and a blowout prevention assembly 2 for preventing blowout during drilling, and the chassis 1 is provided with a butt joint assembly 3 for installing and positioning the blowout prevention assembly 2. Figure 1

[0033] As shown in the drawings, the butt joint assembly 3 comprises a support frame 31 fixedly installed on the chassis 1, and the support frame 31 is provided with a supporting ring 33 capable of moving horizontally or vertically in a horizontal plane, and the top of the supporting ring 33 is fixedly installed with a plurality of protruding rods 331 distributed in a ring shape; a same support frame 34 is movably sleeved on the outer wall of the plurality of protruding rods 331, the bottom of the support frame 34 is fixedly installed with a laser lamp 342 at the center, and the center of the laser lamp 342 is on the same axis as the center of the ring-shaped structure formed by the plurality of protruding rods 331; and the top of the supporting ring 33 is sealingly connected with the blowout prevention assembly 2 through a sealing sheet 32. Figure 2-Figure 5

[0034] As shown in the drawings, the sealing sheet 32 is provided with a plurality of ring-shaped butt joint holes 322 at positions corresponding to the protruding rods 331, the inner wall of the butt joint hole 322 abuts against and slidably connects with the outer wall of the protruding rod 331, and the center of the sealing sheet 32 is provided with a butt joint pipe 321 connected with the blowout prevention assembly 2. The sealing sheet 32 comprises a metal base, and the outside of the metal base is sleeved with a rubber sleeve. When the sealing sheet 32 abuts against the top of the support cylinder 11, the deformation of the rubber sleeve improves the plugging sealing effect of the sealing sheet 32. Figure 4

[0035] As shown in the drawings, the support frame 34 is provided with a through hole 341 at a position corresponding to the protruding rod 331, the inner wall of the through hole 341 abuts against and slidably connects with the outer wall of the protruding rod 331, the diameter of the through hole 341 is 0.1-0.3 mm larger than that of the protruding rod 331, the inner wall is plated with hard chromium, and the laser lamp 342 is always aligned with the ring center. Figure 5

[0036] ​​​​It should be noted that: through the setting of the adapter assembly 3, when installing the device, the bottom disc 1 can be installed in the marking area first, and then the support ring 33 is controlled to move horizontally in the horizontal direction or vertically. During this process, the top protruding rod 331 can be adjusted horizontally. During the adjustment of the protruding rod 331, the position of the laser beam irradiated by the center laser lamp 342 of the external support frame 34 is compared with the position of the mark point, until the position of the laser beam coincides with the center of the mark point, that is, the position adjustment of the protruding rod 331 is completed. Then, after the sealing piece 32 is connected with the protruding rod 331, the axis of the main pipe 21 connected with the adapter pipe 321 is on the same axis line as the mark point. Through the installation of the split laser alignment, the accuracy and portability of the installation and alignment of the device can be improved, and the influence of the deviation during installation on the drill pipe and the later work of the device can be reduced. The laser lamp 342 is powered by an internal battery or an external power plug. The specific circuit arrangement is known in the art.

[0037] As shown in Figure 3 The support ring 33 and the support frame 31 are provided with an adapter plate 314. The support ring 33 and the adapter plate 314 are horizontally arranged. The support ring 33 is longitudinally moved by the thread cooperation between the moving block b317 and the screw rod b316, and is transversely moved by the thread cooperation between the adapter plate 314 and the screw rod a312 and the moving block a313. The top of the support frame 31 is fixedly installed with two groups of symmetrically distributed support blocks a311. The same group of support blocks a311 are rotatably connected with the screw rod a312. The two screw rods a312 are parallel. The outer walls of the two screw rods a312 are respectively threadedly connected with two moving blocks a313. The top ends of the plurality of moving blocks a313 are fixedly connected with the bottom of the adapter plate 314. The top of the adapter plate 314 is fixedly installed with two groups of symmetrically distributed support blocks b315. The same group of support blocks b315 are rotatably connected with the screw rod b316. The two screw rods b316 are parallel. The screw rod b316 is perpendicular to the screw rod a312. The outer walls of the two screw rods b316 are respectively threadedly connected with two moving blocks b317. The top ends of the plurality of moving blocks b317 are fixedly connected with the bottom of the support ring 33. The outer walls of the support blocks a311 and the support blocks b315 are respectively fixedly installed with motors for driving the screw rod a312 and the screw rod b316.

[0038] It should be noted that: the rotation speed of the motor driving the two lead screws a312 is the same, the rotation speed of the motor driving the two lead screws b316 is the same; during use, when the motor is working, it can drive the corresponding lead screw a312 or lead screw b316 to rotate, so that it can drive the moving block a313 or the moving block b317 to move through the threaded structure, in this process, the moving block a313 drives the top protruding rod 331 and other components to move horizontally through the adapter plate 314, and the moving block b317 drives the top protruding rod 331 and other components to move vertically through the supporting ring 33, so that the protruding rod 331 and the supporting frame 34 sleeved thereon can be infinitely adjusted in the horizontal direction; therefore, the laser beam generated by the laser lamp 342 inside can be successfully aligned with the mark point, and the motor used to drive the lead screw a312 and the lead screw b316 is a self-locking motor, which avoids the phenomenon that the lead screw a312 or the lead screw b316 rotates randomly during use. The lead screw mechanism drives the adapter plate 314 and the supporting ring 33 to move, realizes infinite adjustment in the horizontal plane, and improves the calibration accuracy. In actual use, a lead screw protective sleeve can be sleeved outside the lead screw a312 or the lead screw b316.

[0039] As shown in Figure 1 , Figures 8-10 , the blowout prevention assembly 2 comprises a main pipe 21, the end of the main pipe 21 is provided with a fixedly connected adapter pipe a 22 through flange and bolt installation, the end of the adapter pipe a 22 is provided with a fixedly connected adapter pipe b 23 through flange and bolt installation, the inner wall of the adapter pipe b 23 is provided with a plurality of soft rubber water stop pieces 252 for sealing the outer wall of the drill pipe; the inner bottom of the adapter pipe b 23 is provided with an annular mounting groove 231, the inner wall of the adapter pipe b 23 is provided with a plurality of annularly distributed insertion grooves 232, the inner top of the adapter pipe b 23 is provided with an annular positioning groove 233, the mounting groove 231, the insertion groove 232 and the positioning groove 233 are in communication with each other, the outer wall of the support ring 25 is provided with a plurality of fixedly connected and annularly distributed insertion strips 251, the insertion strips 251 extend into the insertion grooves 232 and are connected in sliding mode, the lowermost support ring 25 is placed in the mounting groove 231, and the inner wall of the support ring 25 is fixedly connected with the outer wall of the soft rubber water stop piece 252. The positioning ring 241 is installed in the positioning groove 233, a plurality of annularly distributed positioning insertion blocks 242 are fixedly installed on the bottom of the positioning ring 241, the positioning insertion blocks 242 extend into the insertion grooves 232 and are connected in sliding mode, the bottom end of the positioning insertion blocks 242 abuts against the top of the uppermost support ring 25, and a fixedly connected connecting ring 24 is installed on the top of the positioning ring 241, and the connecting ring 24 is fixedly connected with the adapter pipe b 23 and the mounting seat 41 through bolts respectively.

[0040] It should be noted that: through the plug-in installation of the supporting ring 25, in the later use process, when the soft rubber water stop piece 252 used for sealing the drill rod is damaged, the drill rod and the guide assembly 4 on the outside can be taken out first, after the connection of the guide assembly 4 is released, the connecting ring 24 can be lifted upwards, in this process, the connecting ring 24 can drive the positioning ring 241 and the positioning plug 242 to move synchronously, so that the positioning plug 242 can be removed from the top of the supporting ring 25, and then the supporting ring 25 can be taken out from the mounting groove 231, the soft rubber water stop piece 252 can be disassembled, after the damaged soft rubber water stop piece 252 is disassembled, a new soft rubber water stop piece 252 can be taken out and inserted into the mounting groove 231 and the plug-in groove 232 through the plug-in groove 232 on the outer wall of the supporting ring 25, the soft rubber water stop piece 252 is inserted and replaced, the positioning ring 241 and the positioning plug 242 are inserted into the positioning groove 233 and the plug-in groove 232, so that the bottom end of the positioning plug 242 abuts against the top of the uppermost supporting ring 25, then the flange on the mounting seat 41 of the guide assembly 4 can be fixed with the flange on the top end of the connecting ring 24 and the adapter pipe b23 through bolts, so that the replacement of the soft rubber water stop piece 252 by the worker is more convenient.

[0041] As shown in Figure 1 and Figure 6 The top of the adapter pipe b23 is provided with a guide assembly 4, the guide assembly 4 includes a mounting seat 41, the mounting seat 41 is fixedly connected between the flange on the top end of the adapter pipe b23 and the flange through bolts, the top of the mounting seat 41 is provided with a rotationally connected mounting cylinder 42, the inner wall of the mounting cylinder 42 is provided with two groups of staggered transverse guide rollers 421 and longitudinal guide rollers 422, each group of transverse guide rollers 421 and longitudinal guide rollers 422 is composed of four and symmetrically distributed in the interior of the mounting cylinder 42, balanced stress, the longitudinal guide rollers 422 are located between the transverse guide rollers 421, the transverse guide rollers 421 and the longitudinal guide rollers 422 are arranged in the axial direction.

[0042] It should be noted that: through the installation of the guide assembly 4, in the later use process, the transverse guide rollers 421 and the longitudinal guide rollers 422 in the guide assembly 4 will abut against the outer wall of the drill rod to guide the drill rod inserted into the drill hole, at the same time, since the drill rod moves spirally, the downward moving force in the spirally moving drill rod will abut against the transverse guide rollers 421 and the longitudinal guide rollers 422 to drive them to rotate, and the rotating force of the drill rod can also drive the mounting cylinder 42 to rotate on the mounting seat 41 through the friction force abutting against the transverse guide rollers 421 and the longitudinal guide rollers 422, so that the friction force generated in the process of guiding the drill rod can be reduced, and the movement of the drill rod can be more smooth.

[0043] As Figure 1-Figure 2 shown in the figure, the base plate 1 is provided with a fixedly connected support cylinder 11, which is a rigid cylindrical structure; the center of the base plate 1 is provided with a through hole 12, the diameter of the through hole 12 is smaller than the diameter of the end of the butt joint pipe 321, the distance from the top of the base plate 1 to the top of the support cylinder 11 is the same as the distance from the bottom of the sealing piece 32 to the bottom end of the butt joint pipe 321, the top of the base plate 1 abuts against the bottom end of the butt joint pipe 321, and the top of the support cylinder 11 abuts against the top of the sealing piece 32.

[0044] It should be noted that: since the diameter of the through hole 12 is smaller than the diameter of the end of the butt joint pipe 321, and then during the installation process of the butt joint pipe 321, after the worker preliminarily fixes the base plate 1 at the marked point position, there is a slight deviation between the center inside and the marked point, the positions of the plurality of protruding rods 331 are adjusted through the comparison of the laser lamp 342, and then the sealing piece 32 is sleeved outside the protruding rod 331, the bottom end of the butt joint pipe 321 with a larger diameter abuts against the base plate 1, the outside of the through hole 12 part in the base plate 1 is face sealed, so that the penetration of slurry from the through hole 12 part to the outside of the lead screw a 312 and the lead screw b 316 of the support cylinder 11 during the drilling process can be reduced, which affects the later rotation.

[0045] And in this embodiment: since the distance from the top of the base plate 1 to the top of the support cylinder 11 is the same as the distance from the bottom of the sealing piece 32 to the bottom end of the butt joint pipe 321, when the sealing piece 32 is sleeved on the outer wall of the protruding rod 331, the bottom of the sealing piece 32 abuts against the top of the support cylinder 11 when the bottom of the butt joint pipe 321 abuts against the base plate 1, so that the sealing of the end of the support cylinder 11 can be realized, and the friction force when the bottom of the sealing piece 32 abuts against the top end of the support cylinder 11 can also increase the stability of the protruding rod 331 supporting the blowout preventer assembly 2.

[0046] As Figure 7 shown in the figure, the main pipe 21 is fixedly provided with a slurry discharge valve 211 and a slurry supplement valve 212 which are in communication with the inside of the main pipe 21, a pressure gauge 213 is inserted and fixedly connected on the side wall of the main pipe 21 near the slurry discharge valve 211, and a gate valve 221 is installed on the adapter pipe a 22.

[0047] It should be noted that: through the setting of the pressure gauge 213, the pressure pile in the hole can be monitored in real time during the construction process, so that the slurry discharge valve 211 can be opened to discharge slurry and relieve pressure when the pressure increases, the slurry supplement valve 212 can be used to inject slurry and increase pressure when it is necessary to maintain the ground pressure, and the gate valve 221 can be closed flexibly to seal and prevent water from gushing out of the hole after the drill pipe is pulled out of the hole.

[0048] The working principle of the all-direction high-pressure jetting work method pile drilling blowout prevention device provided by the embodiment of the present application is as follows: In use, the staff can first take out the base plate 1 in the device, and then install it at the required marking point position through bolt fixation; Then the support frame 34 is taken out from the outer wall of the convex rod 331, and the sealing sheet 32 in the butt joint assembly 3 is sleeved on the outer wall of the convex rod 331 through the butt joint hole 322, until the bottom of the sealing sheet 32 abuts against the top of the support cylinder 11, and the bottom end of the butt joint pipe 321 abuts against the outer wall of the through hole 12 in the base plate 1, and then the sealing sheet 32 is fixed; After the installation and fixation of the sealing sheet 32 are completed, the flange at the end of the main pipe 21 in the blowout prevention assembly 2 is fixed with the flange at the end of the butt joint pipe 321 through bolts, so that the installation of the blowout prevention assembly 2 and the end guiding assembly 4 thereof is realized, so that the axes of the pipes in the blowout prevention assembly 2 are on the same axis as the center of the marking point, and thus the accurate installation of the device is realized; After the installation of the device is completed, the drilling equipment can be checked to ensure that the main machine, the high-pressure pump, the air compressor, the mud mixing system and the all-direction high-pressure jetting management device are in good condition, and after the equipment is normal, the drill rod can be inserted into the device for drilling operation. During the drilling operation of the drill rod, the transverse guide roller 421 and the longitudinal guide roller 422 of the guiding assembly 4 guide the movement track of the drill rod by abutting against the outer wall of the drill rod, so that the insertion and movement of the drill rod are more stable, and in the process of the helical movement of the drill rod, the friction between the drill rod and the transverse guide roller 421 and the longitudinal guide roller 422 drives the installation cylinder 42 of the transverse guide roller 421 and the longitudinal guide roller 422 and the outer wall thereof to rotate, so as to reduce the friction of the guiding assembly 4 in the guiding process of the drill rod, and make the drilling operation of the drill rod more smooth.

[0049] The pressure gauge 213 can monitor the pressure in the hole in real time during the construction process, the grout discharge valve 211 can discharge grout to reduce pressure when the pressure at the hole mouth increases, and the grout supplement valve 212 can be used to supplement grout into the hole during hole drilling and grouting to maintain the pressure in the ground. It can also be used for secondary pressure grouting after jet grouting to fill the voids formed after the cement grout solidifies. When the drill rod is pulled out of the hole mouth, the closed gate valve 221 can be flexibly sealed to prevent sudden gushing at the hole mouth; In the subsequent use process, when the soft rubber sealing piece 252 for sealing the outer wall of the drill rod in the blowout preventer assembly 2 is damaged due to friction, the worker takes out the drill rod on the outside, loosens the bolts connecting the adapter pipe b23 and the mounting seat 41, separates the guide assembly 4 from the blowout preventer assembly 2, and removes the mounting seat 41 in the guide assembly 4. After the limiting of the positioning ring 241 is released, the worker can first extract the positioning ring 241 from the adapter pipe b23, thereby releasing the limiting of the inner support ring 25. Then the worker successively extracts the support ring 25 from the inside of the adapter pipe b23, and the soft rubber sealing piece 252 can be disassembled. The split type structure design can reduce the difficulty of the worker in disassembling the soft rubber sealing piece 252, so that the worker can more conveniently perform the later maintenance work, and thus the use experience of the device can be improved.

[0050] The above only describes the preferred embodiments of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application is included in the protection scope of the present application.

Claims

1. A omnidirectional high-pressure jetting method pile drilling anti-spurting device, comprising a chassis (1), characterized in that: A blowout prevention assembly (2) is provided on the chassis (1), and a docking assembly (3) for mounting and positioning the blowout prevention assembly (2) is provided between the chassis (1) and the blowout prevention assembly (2); The docking assembly (3) includes a support frame (31), the support frame (31) is fixedly mounted on the chassis (1), and a support ring (33) is provided on the support frame (31), and the support ring (33) can move laterally or longitudinally in a horizontal plane; a plurality of annularly distributed protruding rods (331) are fixedly mounted on the top of the support ring (33); a same support frame (34) is sleeved on the outer walls of the plurality of protruding rods (331), and a laser light (342) is fixedly mounted at the center of the bottom of the support frame (34), and the center of the laser light (342) and the center of the annular structure formed by the plurality of protruding rods (331) are on the same axis; The blowout prevention assembly (2) comprises a main pipe (21), the bottom end of the main pipe (21) is sealedly connected to the docking assembly (3) via a sealing sheet (32), the top end of the main pipe (21) is flange-connected to a transfer pipe a (22) and a transfer pipe b (23) in sequence, and the inner wall of the transfer pipe b (23) is provided with a plurality of soft rubber water-stop sheets (252) for sealing the outer wall of the drill pipe.

2. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: A guide assembly (4) is provided at the top of the transfer tube b (23), and the guide assembly (4) includes a mounting seat (41), the mounting seat (41) is connected to the top flange of the transfer tube b (23), and a rotatably connected mounting cylinder (42) is installed on the top of the mounting seat (41), and two groups of staggered transverse guide rollers (421) and longitudinal guide rollers (422) are mounted on the inner wall of the mounting cylinder (42), and the transverse guide rollers (421) and longitudinal guide rollers (422) are respectively abutted against the outer wall of the drill rod for guiding the drill rod.

3. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 2 is characterized in that: Each group of the transverse guide rollers (421) and longitudinal guide rollers (422) consists of four, which are symmetrically distributed inside the mounting cylinder (42), and the longitudinal guide rollers (422) are located between the transverse guide rollers (421). The transverse guide rollers (421) and the longitudinal guide rollers (422) are staggered in the axial direction, and the ends of the transverse guide rollers (421) and the longitudinal guide rollers (422) are rotatably connected to the inner wall of the mounting cylinder (42).

4. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: A fixedly connected support tube (11) is mounted on the chassis (1), a through hole (12) is provided at the center of the chassis (1), the diameter of the through hole (12) is smaller than the diameter of the end of the butt-joint tube (321), the distance from the top of the chassis (1) to the top of the support tube (11) is the same as the distance from the bottom of the sealing sheet (32) to the bottom of the butt-joint tube (321), the top of the chassis (1) abuts against the bottom of the butt-joint tube (321), and the top of the support tube (11) abuts against the top of the sealing sheet (32).

5. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: A through hole (341) is provided on the support frame (34) at a position corresponding to the protruding rod (331), and the inner wall of the through hole (341) abuts against and is slidably connected to the outer wall of the protruding rod (331); a plurality of annularly distributed docking holes (322) are provided on the sealing sheet (32) at a position corresponding to the protruding rod (331), and the inner wall of the docking hole (322) abuts against and is slidably connected to the outer wall of the protruding rod (331); a docking pipe (321) connected to the blowout prevention assembly (2) is provided at the center of the sealing sheet (32).

6. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: The inner bottom of the transfer tube b (23) is provided with an annular mounting groove (231), and the inner wall of the transfer tube b (23) is provided with a plurality of annularly distributed slots (232), and the mounting groove (231), the slots (232) and the positioning groove (233) are communicated with each other; a plurality of support rings (25) are inserted into the interior of the transfer tube b (23), and the lowermost support ring (25) is placed in the mounting groove (231), and the outer wall of the support ring (25) is provided with a plurality of fixedly connected and annularly distributed inserts (251), which extend into the slots (232) and are slidably connected, and the inner wall of the support ring (25) is fixedly connected to the outer wall of the soft rubber water stop (252).

7. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 6 is characterized in that: The top of the transfer tube b (23) is provided with an annular positioning groove (233), a positioning ring (241) is installed in the positioning groove (233), and a plurality of annularly distributed positioning plugs (242) are fixedly installed on the bottom of the positioning ring (241), the bottom ends of the positioning plugs (242) are against the top of the uppermost support ring (25), and the positioning plugs (242) extend into the slot (232) and are slidably connected.

8. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 7 is characterized in that: A fixedly connected connecting ring (24) is installed on the top of the positioning ring (241), and the connecting ring (24) is fixedly connected to the transfer tube b (23) and the mounting seat (41) by bolts.

9. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: A slurry discharge valve (211) and a slurry replenishment valve (212) are fixedly mounted on the main pipe (21), a pressure gauge (213) is mounted on the side wall of the main pipe (21) near the slurry discharge valve (211), and a gate valve (221) is mounted on the transfer pipe a (22).

10. The all-round high-pressure jetting method pile drilling anti-gushing device according to claim 1 is characterized in that: Two groups of symmetrically distributed support blocks a (311) are fixedly installed on the top of the support frame (31), and a screw rod a (312) is mounted between the support blocks a (311) in the same group. A threaded movable block a (313) is sleeved on the outer wall of the screw rod a (312). The top ends of the plurality of movable blocks a (313) are fixedly connected to the bottom of the adapter plate (314). The top end of the adapter plate (314) is fixedly installed with two groups of symmetrically distributed support blocks b ( 315), a screw rod b (316) connected in rotation is arranged between the support blocks b (315) in the same group, a moving block b (317) connected in threaded connection is sleeved on the outer wall of the screw rod b (316), the top ends of the plurality of moving blocks b (317) are fixedly connected to the bottom of the supporting ring (33), and motors for driving the screw rod a (312) and the screw rod b (316) are fixedly installed on the outer walls of the support block a (311) and the support block b (315), respectively.

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