JP3930507B2 - Tube wall drilling method and apparatus - Google Patents

Description

  The present invention provides a means for repairing and repairing drainage pipes, installers or branch pipes, as well as sewer mains, which are underground underground piping equipment for draining and treating rainwater and miscellaneous wastewater from companies and households. The present invention relates to a pipe wall drilling method and apparatus for pipes in piping equipment.

Conventionally, drainage pipes, mounting pipes, or branch pipes, and also sewer mains in piping facilities buried underground for draining and treating rainwater and miscellaneous wastewater are also large in diameter for manufacturing materials of the pipes. For example, concrete materials such as fume pipes, synthetic resin vinyl chloride pipes, ceramic earth pipes, and ceramic pipes are used in the production data of pipes. As for the caliber, the sewer main is generally 400 mm to 800 mm, but a large caliber of 800 mm or more is used depending on the location and drainage treatment conditions. Specifically, the range of about 80 mm to 150 mm is appropriately selected and used.
These pipes, which are pipes, have deteriorated due to aging over the years after installation, and the pipe strength has been significantly reduced, as a cause of natural earthquakes, groundwater level fluctuations, or man-made occurrences. Due to the increase in traffic volume, vibration, impact, etc. due to ground or underground construction, etc., ground subsidence, ground fracture, etc. may occur, and some pipes may crack, break, collapse, etc. There has been a problem that the connection part of each other has a problem such as separation or misalignment.

  In this type of underground buried piping equipment, the main method of repairing and repairing the main sewer pipe is to repair and repair the existing pipe wall with a repair material, and to make a new separately manufactured pipe. It is roughly classified into a pipe manufacturing method in which a pipe is formed into a shape that can be easily inserted into an existing pipe, and the self-standing pipe inserted into the existing pipe is restored to a tubular body and brought into close contact with the inner peripheral surface of the existing pipe.

In the existing pipe repair method, since the wall thickness of the repair pipe after repair work is relatively thin, a slight dent occurs in the attachment part of the attachment pipe to the sewer main pipe due to the pressure accompanying the repair work. After the repair work is completed, the position and diameter can be easily confirmed from the inside of the correction pipe by a TV for in-pipe investigation, etc., so that the installation position of the sewer main pipe and the installation pipe can be easily drilled with a drilling machine. It has the advantage that construction can be carried out.
However, this type of existing pipe repair method has a relatively thin wall after the repair work, so the strength of the repair pipe is low. There is a problem that the process is complicated, and therefore, the construction period is long and the construction cost is high, and at present, the pipe making method in which a self-supporting pipe is restored and brought into close contact with the existing pipe is the mainstream.
JP 2000-257785 A JP 2001-82673 A JP 2002-1113779 A

  The problem to be solved is that in the pipe making method, where the self-supporting pipe, which is a repair method for the main sewer pipe in the underground piping facility, is restored and brought into close contact with the existing pipe, the thick self-supporting pipe is installed in the existing pipe. Because it is a method of applying considerable pressure to restore and adhere to, the thickness of the correction pipe after construction is naturally thick, and there is an advantage that it is strong and strong, but it is attached to the sewer main pipe Since there is almost no dent in the pipe mounting part, in the pipe making method, it is not possible to investigate and confirm the mounting position of the mounting pipe from the inside of the correction pipe. For this reason, the conventional pipe making method is shown. As shown in FIG. 7, provisional drilling d is performed from the side of the mounting pipe a, and then this provisional drilling d is performed by using the drilling machine c while confirming the mounting position of the mounting pipe a from the inside of the correction pipe b again. Widening while attaching to tube Construction method of forming a proper drilling as inlet of a a problem that must be performed.

  In the drilling method performed from the side of the mounting pipe a with respect to the correction pipe b in this pipe manufacturing method, the drilling diameter is indispensable in order to maintain the strength of the mounting connection at the mounting position of the mounting pipe a and the sewer main pipe. On the other hand, if the hole diameter is increased, the connection area between the mounting tube a and the tube rod decreases, and the strength of the mounting connection decreases. Even if this force is applied, there is a problem that the mounting tube a is separated from the pipe rod and falls off, or the position of the mounting tube a is displaced. There is a risk of cracking or unexpected damage to the existing pipe e due to vibration associated with drilling the existing pipe e while cutting it with the drilling machine c, and further, between the existing pipe e and the self-standing pipe f. In the straight pipe b with a gap, drilling There is a possibility that the position of the temporary perforation d cut and perforated from the mounting pipe a side by the operation of c and the position of the perforated hole perforated from the correction pipe b side of the existing pipe e may be misaligned with each other. There was a problem.

Further, in the straightened pipe b in which the self-supporting pipe f is restored and brought into close contact with the existing pipe e in this pipe making method, the mounting position of the mounting pipe a is cut by operating the main drilling machine i from the inside of the straightened pipe b. In the drilling method by drilling, the large-diameter straight pipe b is cut in a limited place inside the pipe body, and generally by remote control using a self-propelled drilling machine. Therefore, it is almost impossible to form the hole shape of the drill hole into a perfect circle. Therefore, the hole shape of the drill hole communicating with the mounting position of the correction pipe b and the attachment pipe a is a perfect circle. Therefore, there is a risk that miscellaneous wastewater from the mounting pipe a into the correction pipe b is obstructed by the flow path at the position of the perforated hole, and the smooth circulation of the miscellaneous wastewater is hindered.
In particular, in the construction method in which an operator drills while cutting with a drilling machine by remote control, the mounting positions of the correction pipe b and the mounting pipe a are cut according to the skill and skill level of the operator at the actual construction site. However, due to variations in the hole diameter and roundness of the hole shape of the drilled holes, the drilling construction work depends on the skill and skill level of the operator even at the same construction site. The accuracy and roundness of the drilling may vary, and there is a risk that a constant and smooth distribution of miscellaneous wastewater cannot be obtained from the drilling.
Further, a temporary drilling d is formed by once drilling and drilling the correction pipe b from the mounting pipe a side by operating the drilling machine c, and then mounting from the inner side of the correction pipe b using the temporary drilling d as a mark. Since the installation position of the pipe a is complicated by the construction method of drilling while cutting the main pipe side drilling machine i, it takes a considerable amount of time for construction, and inevitably In particular, there was a problem that construction costs increased.

  Conventionally, drainage pipes, mounting pipes and branch pipes in underground underground piping facilities, as well as drainage pipes in order to investigate and confirm faults and places such as cracks and depressions in existing pipes that are sewer mains, There is a considerable long distance from the opening hole such as a cage or manhole to the location of the troubled part or part due to cracks or depressions of these existing pipes by inserting an investigation confirmation device such as an endoscope device or a survey TV device. Even if it exists, it is necessary to check and confirm while moving it, and the path from the insertion position of the opening hole to the check position is not necessarily a straight path but is bent or has a different diameter. Since it is necessary to go through the connecting pipe, the survey and confirmation while inserting and moving this kind of endoscopic equipment and exploration TV equipment into the existing pipe without using excavation from the ground , Practically extremely tricky To difficult and it is difficult to confirm the exact location, it takes the cost of considerable and complex operations.

The configuration of the present invention for achieving the above object is as follows.
The tube wall perforating method according to claim 1 is a method of attaching a flexible reinforcing tube having a high-pressure air hose inserted in a folding body by urging a wall pressing body pivotally supported on the machine body in a tilting direction, and inserting the high-pressure air hose into the machine body. The wall pressing body, which is inserted into the pipe body in a detachable and movable manner by the operation of the flexible reinforcing pipe, and is pivotably supported by the airframe, is pivotally supported by the piston body that presses in the standing direction by the supply of high-pressure air. Stand up while supplying high-pressure air to the fuselage, press and fix to the wall surface of the tube, and then insert the nozzle port of the nozzle tube that is rotatably inserted into the insertion tube protruding from the fuselage against the axis of the nozzle tube. It is characterized in that it is tilted at an arbitrary angle from the orthogonal direction and discharged while supplying high-pressure water to the airframe, and the wall surface of the tube body is perforated while rotating the nozzle tube.

  In the tube wall drilling method according to claim 2, the nozzle tube rotatably inserted into and supported by the insertion tube according to claim 1 is provided so that the inclination angle with respect to the insertion tube can be arbitrarily adjusted. It is characterized by.

  The tube wall perforating apparatus according to claim 3 is a tube wall surface fixing means, wherein a wall surface pressing body pivotally supported by the airframe is erected by supply of high-pressure air so as to be press-fixable to the tube wall surface; A nozzle port of a nozzle tube that is inserted into an insertion tube projecting from the airframe and is rotatably supported is inclined at an arbitrary angle with respect to the axis of the nozzle tube, and the nozzle tube Is characterized in that it is rotated by supplying and discharging high-pressure water so that the wall surface of the tube body can be drilled and the machine body inserted into the tube body is detachable and movable.

  According to a fourth aspect of the present invention, there is provided a tubular body wall punching device, wherein the nozzle tube in the punching means according to the third aspect is rotatably inserted into an insertion tube projecting from the fuselage and is pivotally supported. It is characterized by being provided with an inclination so that the inclination angle can be adjusted arbitrarily.

  According to a fifth aspect of the present invention, there is provided a tubular body perforating apparatus in which a flexible reinforced pipe having the high-pressure air hose according to claim 3 or 4 inserted therein is integrally attached and fixed to an airframe, and the flexible reinforced pipe is operated by operating the flexible reinforced pipe. It is characterized in that the machine body inserted into the body is detachable and movable.

According to the first aspect of the present invention, since the mounting pipe can be attached by drilling at an arbitrary position of the existing pipe that requires repair and repair, as in the conventional pipe making method, the temporary pipe is temporarily drilled one by one. After that, it is unnecessary to drill again with the main drilling machine using the temporary drilling as a mark from the inside of the straight pipe again, and the process of repairing and repairing existing pipes by the pipe making method is greatly simplified. There is.
In addition, since it is possible to open a hole having an arbitrary diameter at an arbitrary position of a pipe culvert of an existing pipe buried underground, a location far away from the existing pipe culvert to confirm the position of repair and repair of the existing pipe culvert There is no need to inspect and confirm by moving the inspection and confirmation device from the drainage dredging or manhole opening, and drilling at any position on the existing pipe dredging that requires repair and repair. The repair device can be easily checked by inserting and removing the confirmation device, and repair tools, tools, and equipment can be installed in the existing pipe tube that requires repair and repair. There is an effect that it can be inserted and removed from the perforation provided at the position.
Further, the wall pressing body pivotally supported on the machine body is urged and folded in the inclining direction, a flexible reinforced pipe having a high-pressure air hose inserted therein is attached to the machine body, and the flexible reinforced pipe is operated by operating the flexible reinforced pipe. Insert the airframe into and out of the airframe and move it freely. The wall pressing body, which is pivotally supported by the airframe, is pivotally supported by the piston body that presses in the upright direction by supplying high-pressure air, and high-pressure air is supplied to the airframe. The nozzle port of the nozzle tube that was supported while being upright and fixed to the wall surface of the tube body, and then rotatably inserted into the insertion tube projecting from the fuselage was set at an arbitrary angle from the direction perpendicular to the axis of the nozzle tube. In this case, the high pressure water is discharged while supplying high pressure water to the machine body, and the wall surface of the pipe body is drilled while rotating the nozzle tube. Can be inserted into and removed from the tube Since the nozzle port is inclined with respect to the axis of the nozzle tube, high-pressure water can be discharged while rotating the nozzle tube. There is an advantage that the punch can be perforated in a circular shape.

  In addition to the above-described effects obtained by the invention described in claim 1, the following effects can be obtained according to the invention described in each claim.

  According to the second aspect of the present invention, the nozzle tube rotatably inserted into the insertion tube and pivotally supported is provided so that the inclination angle with respect to the insertion tube can be arbitrarily adjusted. Therefore, the inclination angle of the nozzle tube is adjusted. By doing so, there is an advantage that the existing pipe can be drilled with an arbitrary diameter.

  According to the third aspect of the present invention, the airframe is inserted into and removed from the pipe body in a detachable and movable manner, and the wall surface pressing body is erected and fixed by pressure by supplying high-pressure air from the pipe wall surface fixing means. The nozzle tube of the drilling means can be rotated and rotated in a circular shape by supplying and discharging high-pressure water.

According to the invention described in claim 4, the nozzle tube in the perforating means is rotatably supported by being inserted into the insertion tube protruding from the airframe, and the nozzle port of the nozzle tube is orthogonal to the axis of the nozzle tube. Since the nozzle tube is rotated by a reaction caused by the discharge of high-pressure water discharged from the nozzle port, the nozzle tube is rotated, so that it is perforated circularly by the discharge of high-pressure water. There is an advantage that can be.
In addition, the nozzle tube in the punching means is rotatably inserted into the insertion tube projecting from the airframe, is pivotally supported, and is provided with an inclination that can be arbitrarily adjusted with respect to the insertion tube. There is an advantage that the size of the bore diameter can be arbitrarily set by adjusting the inclination angle of the nozzle tube to be rotated.

  According to the fifth aspect of the present invention, the flexible reinforcing tube having the high-pressure air hose inserted therein is integrally attached and fixed to the airframe, and the airframe inserted into the tubular body can be inserted and removed by operating the flexible reinforcing tube. Since it is provided so as to be movable, insertion into and withdrawal from the tube and movement within the tube have the advantage that the flexible reinforcing tube can be easily operated by human power.

  When repairing and repairing pipes of existing pipes that are pipes of underground piping facilities for drainage treatment of rainwater and miscellaneous wastewater, connect the pipes to any position on the outer peripheral side of the pipes, A tube wall drilling device is inserted into the attached tube body so as to be detachable and movable, fixed in the tube body, and then the nozzle tube is rotated to discharge high-pressure water while rotating the outer peripheral side surface of the tube rod. The purpose of drilling at any position is realized.

A tube wall drilling method and apparatus according to the present invention will be described with reference to the drawings in FIGS.
FIG. 1 is an explanatory view of one embodiment showing a tube wall drilling method of the present invention, and FIGS. 2 and 6 show one embodiment of a tube wall drilling device of the present invention. FIG. 3 is a partially enlarged plan view of the principal part of the tubular wall perforating apparatus of the present invention, FIG. 3 is a sectional view of the principal part of FIG. 2, and FIG. 4 is an explanatory view showing the operation of the nozzle tube. FIG. 5 is a perspective view of a state in which the wall surface pressing body of the tubular wall perforating apparatus of the present invention is lying down on the airframe, and FIG. 6 is a perspective view of the wall surface pressing body of the tubular wall perforating apparatus of the present invention standing on the airframe. FIG.
1 is a tube wall punching device, 2 is an airframe, 3 is a wall pressing body pivotally supported by the airframe, 4 is an insertion tube, 5 is a shaft support tube, 6 is a nozzle tube, 7 is a nozzle port, and 8 is Axis support, 9 is an angle adjuster, 10 is a bolt body, 11 is an adjustment nut, 12 is a bolt mounting body, 13 is a bolt support shaft body, 14 is a mounting cylinder body, 15 piston body, 16 is a tension spring, 17 Is an undulating connector, 18 is an undulating support, 19 is a high pressure air hose, 20 is a high pressure water hose, 21 is a flexible reinforcing pipe, 22 is a pipe, 23 is an existing pipe, 24 is a self-supporting pipe, and 25 is a straight pipe. is there.

In FIG. 1, a pipe 22 is placed at an arbitrary position on the outer peripheral side surface of an existing pipe 23 that is a pipe body such as a drain pipe, a mounting pipe, or a branch pipe, and a sewer main pipe in underground piping equipment. Connect and fix.
In this case, as a position for connecting and fixing the pipe body 22 to the existing pipe 23, when the existing pipe 23 is a sewer main, no matter what the position of the drainage dredge, manhole or mounting pipe is, In order to explore the parts that require repairs such as depressions and the places where repairs are necessary, the position of drilling for inserting / removing the survey and confirmation device of the exploration instrument such as the exploration TV into the existing pipe 23, The position for attaching and connecting a new mounting pipe to the correction pipe 25 having the self-standing pipe 24 in close contact with the inner peripheral surface of the existing pipe 23, and other positions to be drilled required for repairing and repairing the existing pipe 22, It is to be selected.

  As shown in FIG. 1, after the pipe body 22 is attached and fixed to the existing pipe 23, the pipe wall perforating apparatus 1 of the present invention is removably inserted into the pipe body 22 to attach the existing pipe 23 and the pipe body 22. At the position, the wall pressing body 3 is erected by supplying high-pressure air, the wall pressing body 3 is pressed against the tube wall surface of the tube body 22, high-pressure water is supplied to the machine body 2, and the nozzle port of the nozzle tube 6 By rotating the nozzle pipe 6 along with the discharge of the high-pressure water from the nozzle port 7 while discharging the high-pressure water from the nozzle 7, the outer peripheral side surface of the existing pipe 23 is perforated by the high-pressure water discharged while the nozzle pipe 6 rotates. To do.

  In this case, the pressure of the high-pressure water discharged from the nozzle port 7 of the nozzle pipe 6 into the high-pressure water supplied to the machine body 2 is in the range of 30 MPa (megapascal) to 250 MPa (megapascal), preferably about 60 MPa (megapascal). Regardless of the manufacturing data of the existing pipe 23, that is, any concrete fume pipe, synthetic resin vinyl chloride pipe, ceramic earth pipe or ceramic pipe, etc. Also, the high-pressure water discharged from the nozzle port 7 of the nozzle tube 6 can be easily perforated.

  The tubular body wall perforating apparatus 1 of the present invention is detachably inserted into the tubular body 22, and the wall surface pressing body 3 is erected by supplying high-pressure air to press and fix the tubular body wall surface of the tubular body 22. Thus, in order to fix the tube wall perforating apparatus 1 in the tube body 22, the air pressure of the high-pressure air for raising and lowering the wall surface pressing body 3 is about 0.05 to 0.5 MPa (megapascal). Pressure is preferred.

  2 to 6 show an embodiment of the tube wall perforating apparatus 1 of the present invention. A tube 22 is connected and fixed to the outer peripheral side surface of an existing tube 23 of a pipe rod in a piping facility. The tube wall drilling device 1 is removably inserted into the tube body 22, and the wall surface pressing body 3 provided in a undulating manner on the body 2 of the tube wall drilling device 1 is raised to stand up the tube of the tube body 22. The existing pipe 23 is perforated while being pressed against the body wall surface and discharging high-pressure water while rotating the nozzle pipe 6 provided in the machine body 2.

The machine base 2 of the tube wall perforating apparatus 1 is slidably fitted into an insertion tube 4 of a metal tube body and penetrates the insertion tube 4 in the central direction so as to be slidable on an outer peripheral surface in one end direction of the insertion tube 4. The piston body 15 and the mounting cylinder body 14 integrally provided in the other end direction of the insertion tube 4.
A high pressure air hose 19 is connected to the piston body 15, and the high pressure air can be supplied into the piston body 15 through the high pressure air hose 19. As shown in FIG. The piston body 15 is provided so as to be pressed and moved in the direction of the end portion of the insertion tube 4 by the pressure.
A tension spring 16 is provided in the insertion tube 4 between the piston body 15 provided in each end direction of the insertion tube 4 and the mounting cylinder 14 to urge the piston body 15 toward the mounting cylinder 14. In addition, in the direction orthogonal to the axis of the mounting cylinder 14, the wall pressing body 3 formed in a substantially flat plate shape with the upper side surfaces of the three sheets formed in an arcuate shape is spaced equidistantly from the outside. Are sandwiched so as to wrap around each other, and are supported in a undulating manner in the direction of the insertion tube 4 by an undulating support 18 that is supported by the mounting cylinder 14 at predetermined intervals, and is directed in the direction of the piston 15 of each wall pressing body 3. The undulating support body 18 is connected to the undulating connecting body 17 having one end pivotally supported by the piston body 15 while being pivotally supported in the other end direction.

In this way, the three wall surface pressing bodies 3 that are pivotally supported by the machine body 2 are normally pulled by the piston body 15 urged by the tension spring 16 in the direction of the mounting cylinder 14 of the machine body 2. As a result, the undulating support body 18 pivotally supported by the undulating connection body 17 while the undulation connecting body 17 pivotally supported by the piston body 15 is pushed down in the direction of the mounting cylinder 14 and falls down. When the high pressure air is supplied into the piston body 15 via the high pressure air hose 19, the wall surface pressing body 3 of the sheet collapses in the direction of the machine body 2, and the piston body 15 is attached to the tension spring 16 by the pressure of the high pressure air. Since it is pressed and moved in the direction away from the mounting cylinder 14 against the force, the undulating connection body 17 acts so as to stand up in the direction in which the undulating support 18 is raised from the mounting cylinder 14 while lying down. is there.
In this way, the tube wall perforating apparatus 1 is removably inserted into the tube body 22, and the three wall surface pressing bodies 3 lie down in the direction of the body 2 due to the urging force of the pulling force of the tension spring 16. The tube wall perforating apparatus 1 can be easily inserted into and removed from the tube body 22,
If high pressure air is supplied into the piston body 15, the pressure of the high pressure air causes the piston body 15 to move away from the mounting cylinder 14 against the urging force of the tension spring 16, and the three wall surface pressing bodies 3 are moved. Therefore, the three wall surface pressing bodies 3 of the tubular body wall punching device 1 inserted into the tubular body 22 strongly press the tubular body wall surface of the tubular body 22, and the tubular body wall punching device 1 It acts so as to be pressed and fixed in the body 22.

The tubular body wall punching device 1 inserted into the tubular body 22 raises the wall surface pressing body 3 and presses and fixes the wall surface pressing body 3 to the tubular body wall surface of the tubular body 22, and supplies high-pressure water while rotating the nozzle tube 6 provided in the machine body 2. The existing pipe 23 is perforated while discharging.
The high-pressure water is supplied to the machine body 2 through the high-pressure water hose 20 connected to the end of the insertion pipe 4 protruding outward from the center direction of the piston body 15, and the other end of the insertion pipe 4. The shaft support tube 5 is loosely inserted so as to be inclined in the left-right direction, and both ends of the shaft support body 8 bridging the insertion tube 4 and the shaft support tube 5 are respectively connected to the insertion tube 4 and the shaft support tube 5. A shaft support tube 5 is inserted into the insertion tube 4 so as to be tiltable in the left-right direction, and a nozzle tube 6 is inserted into the distal end of the shaft support tube 5 so as to be loosely rotatable. Includes an insertion tube 4 projecting outward from the piston body 15, a shaft support tube 5 inserted into the insertion tube 4, and a nozzle tube 6 rotatably inserted into the shaft support tube 5. The penetrating high-pressure water hose 20 is integrally attached and fixed.
In this manner, the high-pressure water hose 20 penetrates through the insertion tube 4, the shaft support tube 5, and the nozzle tube 6, and is integrally attached and fixed to the nozzle tube 6.

The nozzle port 7 of the nozzle tube 6 is bent and disposed at a position inclined at a constant angle with respect to the direction orthogonal to the axis of the nozzle tube 6. For this purpose, the nozzle tube 6 is supplied from the high-pressure water hose 20 to the nozzle tube 6. When the high-pressure water thus discharged is discharged as high-pressure water having a high water pressure from the nozzle port 7 of the nozzle tube 6, the nozzle port 7 is rotated while the nozzle tube 6 is rotated as a reaction accompanying the discharge of the high-pressure water from the nozzle port 7. Is discharged as high-pressure water having a high water pressure, and the jetted high-pressure water pierces the outer wall surface of the existing pipe 23 while drilling.
The high-pressure water supplied from the high-pressure water hose 20 in this way is discharged from the nozzle port 7 of the nozzle tube 6 and, as a reaction thereof, is sprayed from the nozzle port 7 while rotating the nozzle tube 6, The tube wall is drilled while drilling.

The shaft support tube 5 loosely inserted into the insertion tube 4 is supported by bridging the insertion tube 4 and the shaft support tube 5 with a shaft support plate-like body 8, and the shaft support tube 5 is provided so as to be inclined in the left-right direction. The tilt angle of the shaft support tube 5 is set to a constant angle by an angle adjuster 9 provided on the insertion tube 4 and the shaft support tube 5, and the shaft support tube 5 is set at a fixed angle of the shaft support tube 5. The size of the rotation angle of the nozzle tube 6 inserted into the nozzle tube 6 is set, and by setting the rotation angle of the nozzle tube 6, the high pressure discharged and ejected from the nozzle port 7 of the nozzle tube 6 while rotating. The water acts so that the size of the bore diameter for boring the wall surface of the existing pipe 23 is set.
The inclination angle of the shaft support tube 5 by the angle adjuster 9 is set such that a bolt body 12 is provided by bridging a bolt mounting body 12 projecting from the insertion tube 4 and a bolt support shaft body 13 projecting from the shaft support tube 5. The adjustment nut 11 screwed to 10 is tightened and rotated.
The bolt body 10 is fixedly attached to a bolt mounting body 12 projecting from the insertion tube 4 at one end direction, and penetrates and projects through a bolt support shaft body 13 projecting from the shaft support tube 5 at the other end direction. An adjustment nut 11 is screwed into the bolt body 10 protruding from the shaft body 13 so as to be tightened and rotated. By tightening and turning the adjustment nut 11 screwed into the bolt body 10, the shaft support pipe is provided. 5 can be adjusted, and the rotation angle of the nozzle tube 6 inserted into the shaft support tube 5 is set. Therefore, the size of the diameter of the hole to be drilled by the high-pressure water discharged from the nozzle port 7 is set. Act on.

The insertion and removal of the tube wall drilling device 1 of the present invention into and from the tube body 22 that is attached to and connected to the existing tube 23 and the movement are performed by the high pressure connected to the insertion tube 4 protruding outward from the biston body 15 of the machine body 2. The water hose 20 is operated by operating the flexible reinforcing pipe 21 that is coaxially inserted inside.
The flexible reinforcing tube 21 is a flexible hose in which a metal helical coil is integrally mounted within the thickness of a synthetic resin tube, and the flexible reinforcing tube 21 is a high-pressure water hose in the tube. 20 is coaxially inserted and fixed to the insertion tube 4.
In order to insert / remove and move the tube wall punching device 1 into / from the tube body 22, the end of the flexible reinforcing tube 21 is grasped and the state and position in the tube body 22 are confirmed, and the tube wall punching device 1 is manually pushed or pulled. It is what you do.

  Although not shown, the high pressure air hose 19 and the high pressure water hose 20 are connected to an air compression supply device and a high pressure water supply device that are generally used in this type of construction method. Air is provided to the machine body 2 via the high-pressure air hose 19 so that supply can be stopped, and high-pressure water is provided to the machine body 2 via high-pressure water hose 20 so that supply can be stopped. The air erects the wall surface pressing body 3 and presses and fixes the wall surface pressing body 3 to the tube wall surface of the tube body 22, and the high pressure water is discharged while rotating the nozzle tube 6 to perforate the existing tube 23.

  According to the tube wall drilling method and apparatus of the present invention, a wall pressing body provided with a tube wall drilling device in a undulating manner is press-fixed by high-pressure air in a tube attached to an existing pipe to be drilled. The high-pressure water supplied to the body wall drilling device is discharged and drilled while rotating the nozzle tube, so it can be used for repair and repair of not only underground pipes in sewer facilities but also gas pipes and other types of buried pipes. Is also applicable.

  The tube wall drilling method and apparatus according to the present invention comprises a rotating nozzle tube of a tube wall drilling device fixed in pressure contact in a tube attached to an existing tube to be drilled, and high-pressure water with adjustable rotation angle. Since it is a discharge and drilling hole, the drilling hole diameter to be drilled can be set arbitrarily, so that it can be used for repairing and repairing buried pipes not only for underground pipes in sewerage facilities but also for pipes in all fields. It can also be applied to.

It is explanatory drawing of the method of piercing an existing pipe | tube by attaching and fixing a pipe body wall piercing | piercing apparatus in the pipe body attached to the existing pipe | tube which is one Example of the pipe body wall drilling method of this invention. Example 1 It is an expansion perspective view of the principal part of the tubular body wall punching apparatus of this invention. (Example 2) It is sectional drawing of the principal part of FIG. It is a perspective view explaining operation | movement of the principal part of FIG. It is a perspective view explaining operation | movement of the principal part of FIG. It is a perspective view explaining operation | movement of the principal part of FIG. It is explanatory drawing of the method of the attachment pipe hole drilling in the conventional pipe manufacturing method. It is explanatory drawing of an attachment pipe opening hole from the inside of the correction pipe | tube in the conventional pipe manufacturing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tubular wall punching apparatus 2 Machine body 3 Wall surface pressing body 4 Insertion pipe 5 Shaft support pipe 6 Nozzle pipe 7 Nozzle port 8 Shaft support body 9 Angle adjusting tool 10 Bolt body 11 Adjustment nut 12 Bolt attachment body 13 Bolt support shaft body 14 Installation Cylindrical body 15 Piston body 16 Compression spring 17 Undulating connecting body 18 Undulating support body 19 High-pressure air hose 20 High-pressure water hose 21 Fully reinforced pipe 22 Tubing 23 Existing pipe 24 Self-supporting pipe 25 Reinforcing pipe a Mounting pipe b Reinforcing pipe c Drilling hole Machine d Temporary drilling e Existing pipe f Self-standing pipe g Operation unit device h Flexible shaft i Main pipe side drilling machine

Claims (5)

A wall reinforced body that is pivotally supported on the machine body is urged in the overturning direction, and a flexible reinforced pipe with a high-pressure air hose inserted in the folding is attached to the machine body, and the machine body is inserted into and removed from the body by operating the flexible reinforced pipe. Insert freely and freely,
A wall surface pressing body pivotally supported by the airframe is supported by a piston body that presses in a standing direction by supplying high-pressure air, and is raised while being pressurized and fixed to the pipe wall surface while supplying high-pressure air to the airframe.
Next, the nozzle port of the nozzle tube that is rotatably inserted into and supported by the insertion tube projecting from the machine body is inclined at an arbitrary angle from the direction orthogonal to the axis of the nozzle pipe, and the high pressure water is supplied to the machine body and discharged. A tube wall drilling method, wherein the tube wall wall is drilled while rotating the nozzle tube . 2. The tube wall perforation method according to claim 1, wherein the nozzle tube rotatably inserted into the insertion tube and pivotally supported is provided so that an inclination angle with respect to the insertion tube can be arbitrarily adjusted . A tubular wall surface fixing means, wherein a wall surface pressing body pivotally supported on the airframe is erected by supply of high-pressure air so as to be press-fixable to the tubular wall surface;
A nozzle port of a nozzle tube that is inserted into an insertion tube projecting from the airframe and is rotatably supported is inclined at an arbitrary angle with respect to the axis of the nozzle tube, and the nozzle tube A perforating means that is rotated by supplying and discharging high-pressure water so that the tube wall surface can be perforated,
A tube wall perforating apparatus, wherein a machine body inserted into a tube body is detachably and movably provided . The nozzle tube in the perforating means is rotatably inserted into an insertion tube projecting from the fuselage, is pivotally supported, and is provided with an inclination so that the inclination angle can be arbitrarily adjusted with respect to the insertion tube. The tube wall perforating apparatus according to claim 3 . A flexible reinforced pipe having a high-pressure air hose inserted therein is integrally attached and fixed to the machine body, and the machine body inserted into the pipe body is detachable and movable by operation of the flexible reinforced pipe. The tube wall perforating apparatus according to claim 3 or 4 .

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