WO2021070773A1 - 管穿孔装置 - Google Patents
管穿孔装置 Download PDFInfo
- Publication number
- WO2021070773A1 WO2021070773A1 PCT/JP2020/037707 JP2020037707W WO2021070773A1 WO 2021070773 A1 WO2021070773 A1 WO 2021070773A1 JP 2020037707 W JP2020037707 W JP 2020037707W WO 2021070773 A1 WO2021070773 A1 WO 2021070773A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- pipe
- neck
- valve
- fluid
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/34—Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
- F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/72—Tubes, pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- a housing having a split structure in which a fluid pipe is externally fitted in a sealed manner, a work valve having a work valve body that opens and closes the inside of the housing, and a fluid pipe in this housing in a continuous flow state are provided.
- the present invention relates to a pipe drilling device having a drilling machine for drilling, cutting or cutting.
- a housing split T-shaped pipe having a split structure is fitted onto an existing fluid pipe in a sealed manner, and a punching machine is connected to the open end of the neck portion constituting this housing.
- the work valve provided in this housing temporarily closes the inside of the neck of the housing in a sealed manner, and the pipe is replaced with the drilling machine after drilling.
- the present invention has been made by paying attention to such a problem, and the concave valve seat portion formed on the inner surface of the neck portion works in a clean state without causing a problem due to the ingress of chips generated by perforation. It is an object of the present invention to provide a tube drilling device capable of contacting a valve body and maintaining a high degree of sealing.
- the tube drilling device of the present invention is used.
- a housing having a split structure in which the fluid pipe is fitted in a sealed manner, and a work valve having a working valve body that is in contact with and separated from the concave valve seat portion provided in the neck of the housing, and a work valve that is inserted into the housing.
- a pipe punching device having at least a punching machine provided with a cutter for punching the fluid pipe in a continuous flow state. It is characterized by including a tubular portion that moves the opening of the concave valve seat portion in the neck portion so as to be openable and closable.
- the tubular portion is characterized in that it is slidably arranged along the inner surface of the neck portion. According to this feature, by sliding the tubular portion along the inner surface of the neck portion, the accuracy of movement of the tubular portion is improved, and the concave valve seat portion can be reliably opened and closed.
- a sealing material for sealing between the concave valve seat portion and the inner surface of the neck portion is provided on the outer peripheral portion of the tubular portion on the side opposite to the fluid pipe side.
- a protruding portion protruding in the inner diameter direction is formed on the inner peripheral portion near the opening end of the tubular portion. According to this feature, the chips accumulated in the inner peripheral portion of the tubular portion can be retained by the protruding portion without dropping.
- the perforator has a storage cylinder that accommodates the cutter and is attached to and detached from the neck portion of the housing, and the tip portion of the accommodation cylinder is the tubular portion. According to this feature, the accommodating cylinder can be attached to and detached from the neck portion, and at the same time, the opening of the concave valve seat portion can be opened and closed by the tubular portion at the tip thereof.
- a discharge port for discharging chips together with the fluid in the housing is formed at the neck portion on the fluid tube side of the tubular portion. According to this feature, the chips generated during drilling do not approach the concave valve seat portion, and the chips are externally removed through the discharge port formed on the base end portion side upstream of the concave valve seat portion. Can be discharged to.
- the tubular portion is characterized in that a communication port that communicates with a discharge port that discharges chips together with the fluid in the housing is formed. According to this feature, chips that have entered the tubular portion can be discharged to the outside without delay through the communication port and the discharge port.
- the tubular portion is provided with an engaging portion that enables connection or disengagement with the cutter. According to this feature, the cutter and the tubular portion can be easily connected or disconnected only by moving the cutter.
- the tubular portion is provided with a sweep-out portion that moves in and out of the concave valve seat portion as the tubular portion moves. According to this feature, even if foreign matter such as chips enters the inside of the concave valve seat portion, the foreign matter can be discharged to the outside of the concave valve seat portion.
- the tubular portion is characterized by being a hole saw constituting the cutter. According to this feature, the configuration of the tubular portion can be simplified by using the hole saw which is a part of the cutter.
- the tubular portion is characterized by being a suction pipe that can be opened and closed inside and outside the housing. According to this feature, foreign matter such as chips in the housing can be discharged to the outside by a suction pipe leading to the inside and outside of the housing.
- the inner surface forming the concave valve seat portion is characterized in that it is formed on a tapered surface that is opened toward the opening of the concave valve seat portion. According to this feature, since the fluidity in the concave valve seat portion can be increased, chips in the concave valve seat portion can be discharged to the outside of the concave valve seat portion along the tapered surface without staying. Can be done.
- the inner side surface constituting the concave valve seat portion is characterized in that it is formed so as to be inclined with respect to the vertical direction. According to this feature, since the fluidity in the concave valve seat portion can be increased, chips in the concave valve seat portion do not stay and flow out to the outside of the concave valve seat portion along the inclined inner side surface. Can be made to.
- the working valve is characterized by including a working valve housing extending substantially vertically downward so as to accommodate the working valve body. According to this feature, chips can be lowered and introduced into the working valve housing without staying in the concave valve seat portion.
- FIG. It is a front sectional view which shows the housing which comprises the pipe drilling apparatus in Example 1.
- FIG. It is a side view of the housing as in FIG. (A) is a side sectional view showing a working valve accommodating member, and (b) is a side sectional view showing a working valve mounting member.
- It is a partial cross-sectional plan view which shows the situation after drilling by a drilling machine.
- It is a front sectional view which shows the mounting flange cylinder of the drilling machine in the modification.
- FIG. 9 It is a partial cross-sectional plan view which shows the situation after installation of a control valve. Similar to FIG. 9, it is a partial cross-sectional front view.
- A) is a partial cross-sectional front view showing a housing constituting the pipe drilling device in the second embodiment, and (b) is also a partial cross-sectional plan view. It is a partial cross-sectional plan view which shows the state of drilling by a drilling machine. It is a partial cross-sectional plan view which shows the situation after drilling by a drilling machine. It is a top sectional view which shows the situation before installation of a control valve.
- (A) to (c) are enlarged cross-sectional views of the chain line enclosure portion of FIG. 14 showing a procedure for removing the insertion machine from the check valve.
- FIG. 22 It is a top sectional view which shows the situation after installation of a control valve. It is a front sectional view as in FIG. It is a front sectional view which shows the housing which comprises the pipe drilling apparatus in Example 3.
- FIG. It is a partial cross-sectional plan view which shows the drilling machine attached to a housing.
- (A) is a partial cross-sectional front view showing a state of drilling by a drilling machine
- (b) is a cross-sectional view taken along the line AA of FIG.
- It is a front sectional view as in FIG. 22.
- FIG. 29 is a cross-sectional view taken along the line BB of FIG. 29. It is a partial cross-sectional plan view which shows the housing of the pipe drilling apparatus in the modification 5. It is a partial cross-sectional front view which shows the state of drilling by the pipe drilling apparatus in the modification 6. It is a partial cross-sectional front view which shows the state of drilling by the pipe drilling apparatus in the modification 7.
- the pipe drilling device includes a housing 5 for externally fitting an existing fluid pipe 1, a work valve 3 for opening and closing the inside of the housing 5, and a housing 5. It is mainly composed of a punching machine 7 for drilling a fluid pipe 1 inside.
- a pipe drilling device and an installation method thereof after drilling in a predetermined portion of an existing fluid pipe 1 which is a pipeline constituent member in a housing 5 in a continuous flow state, the pipe is drilled in the housing 5.
- the fluid in the fluid pipe 1 is clean water in this embodiment, but may be, for example, industrial water, agricultural water, sewage, or a liquid other than water, or gas or gas-liquid gas-liquid. It may be a mixture.
- the fluid pipe 1 of this embodiment is a ductile cast iron pipe, and is formed as a straight pipe having a substantially circular shape in cross section as shown in FIGS. 1 and 2.
- the fluid pipe 1 is buried in a shallow layer (not shown), and the pipe direction is arranged in a substantially horizontal direction.
- the fluid pipe according to the present invention may be made of other metals such as cast iron or steel, or may be made of concrete, vinyl chloride, polyethylene, polyolefin, or the like.
- the inner peripheral surface of the fluid pipe may be coated with an epoxy resin layer, mortar, plating or the like, or an appropriate material may be coated on the inner peripheral surface of the fluid pipe by powder coating.
- the fluid pipe 1 may be exposed, and the direction of the pipe may be substantially vertical or may be inclined.
- the fluid pipe of the present invention is not limited to a straight pipe as in the present embodiment, and may be composed of, for example, a deformed pipe.
- the deformed pipe is a general term for a pipe having various deformed parts such as a curved pipe part, a branch part, a cross part, a different diameter part, a joint ring part, a short pipe part, and a drainage part. Is.
- the housing 5 constituting the pipe drilling device is externally fitted through the member 4 in a sealed manner.
- the housing 5 of this embodiment has a plurality of divided structures divided in the horizontal direction.
- the first divided body 51 constituting one side portion and the second divided portion constituting the other side portion are formed. It is mainly composed of the body 52.
- the divided structure of the housing 5 is not limited to this embodiment, and may be divided in the vertical direction, for example, and the number of divisions may be divided into a predetermined number of 3 or more.
- the divided housings are joined in a sealed state by a fastening member 2 made of bolts and nuts, but the present invention is not limited to this, and for example, welding may be used.
- the first divided body 51 of the housing 5 includes a pipeline housing portion 5a extending in the pipeline direction along the fluid pipe 1 and a pipeline housing portion 5a.
- the neck portion 5d has a pair of flange-shaped flange portions 5e and 5e protruding in the outer diameter direction toward the pipeline direction of the fluid pipe 1, and the center of the flange portions 5e in the circumferential direction. It has notches 5f and 5f as engaging portions recessed in the inner diameter direction at the position.
- the neck portion 5d is provided with a pipe thickness portion 5g whose outer surface protrudes in the radial direction on the peripheral side portion thereof in a tubular shape, and an opening is opened in the pipe thickness portion 5g in one direction in the pipeline direction of the fluid pipe 1. It has a part 5b. As shown in FIG. 1, the opening 5b is opened in a vertically long substantially rectangular shape in a side view, and the working valve body 31 of the working valve 3 is formed so as to be insertable as will be described later.
- the inner peripheral portion of the neck portion 5d is the same as the inner peripheral surface 5h formed with a substantially circular curved surface in the side view and linearly in the horizontal direction, and the opening 5b in the axial direction of the neck portion 5d.
- a recessed portion 5i as a concave valve seat portion recessed in the outer diameter direction along the circumferential direction, and a recessed portion 5i formed on the base end side of the neck portion 5d with respect to the recessed portion 5i, and the tip of the neck portion 5d.
- It is provided with an inner peripheral surface 5j formed substantially flush with the inner peripheral surface 5h on the side, and a stepped portion 5k protruding in the inner diameter direction on the proximal end side of the inner peripheral surface 5j.
- the work valve 3 is hermetically connected to the opening 5b of the neck 5d.
- the work valve 3 has a work valve body 31 that slides in the housing 5 so as to be openable and closable, an accommodation interior 32a that accommodates the work valve body 31 so as to be slidable in the horizontal direction, and an open end on the side thereof. It is mainly composed of an accommodating member 32 as a work valve housing having a portion 32b, and a mounting member 33 having a curved inner peripheral surface so as to be externally fitted to the neck portion 5d together with the accommodating member 32.
- the accommodating member 32 includes a shaft member 34 that is rotatable and non-advancing and non-retractable and extends in the horizontal direction, and a work valve is provided on the shaft member 34.
- the body 31 is screwed, and the working valve body 31 slides with respect to the accommodating member 32 by rotating the operating member 35 attached to the tip end portion 34a of the shaft member 34 protruding outward from the accommodating member 32. It is configured to be possible. Further, on the side surface of the accommodating member 32 and the side surface of the mounting member 33, support portions 36, 36 for supporting the pressing portion 80 and the hydraulic rod 60, which will be described later, are provided.
- a plate-shaped sealing member 31a is coated on the side surface of the working valve body 31 facing the branching direction, and the peripheral edge portion of the sealing member 31a faces the side wall 5r of the recessed portion 5i.
- the inside of the housing 5 can be closed in a sealed manner.
- the peripheral portion of the working valve body 31 is provided on the side wall 5r of the recessed portion 5i by utilizing the pressure in the fluid pipe 1. Can be brought into surface contact with each other, so that the sealing performance can be improved.
- the working valve body 31 can be formed into a thin plate shape by bringing the peripheral edge portion of the working valve body 31 into surface contact with the recessed portion 5i formed on the inner surface of the neck portion 5d, so that the housing 5 is branched.
- the extension of the direction, that is, the stroke of the drilling machine 7 can be shortened, and the drilling accuracy can be improved without the drilling machine 7 being eccentric.
- by making the working valve body 31 into a thin plate it is possible to achieve cost reduction by downsizing the working valve body 31 and the housing 5, and since the drilling accuracy is high, the plug body 11 of the control valve 10 described later is inserted. Is properly performed, and water stopping and fluid controllability can be improved.
- the accommodating member 32 is arranged on the outer surface of the neck portion 5d at a position where the opening portion 32b communicates with the opening portion 5b of the neck portion 5d.
- the pipe thickness portion 5g of the neck portion 5d has a projecting portion 5m as a pair of positioning portions projecting in the width direction of the opening portion 5b.
- the accommodating member 32 is positioned at an arrangement position where the opening portion 32b and the opening portion 5b of the neck portion 5d communicate with each other. In this way, since the working valve 3 can be accurately attached to the opening 5b by the protruding portion 5m, the opening / closing function of the working valve 3 in the housing 5 can be maintained.
- the mounting member 33 is arranged on the outer surface of the neck portion 5d at a position opposite to the accommodating member 32 with the neck portion 5d in between.
- the inner circumference of the substantially U-shaped engaging portion 33a formed on the mounting member 33 engages with the pipe thickness portion 5g of the neck portion 5d.
- the mounting member 33 is positioned at the arrangement position on the opposite side of the accommodating member 32 with the neck portion 5d interposed therebetween.
- the work valve 3 attached to the opening 5b can be extended in the pipeline direction of the fluid pipe 1, the lateral region of the fluid pipe 1 can be used as the attachment region of the work valve 3. , It is easy to secure the area.
- these accommodating members 32 and mounting members 33 are fastened.
- the base ends 37a of the bolts 37 are hingedly connected to both ends of the mounting member 33, and the bolts 37 are rotated toward the accommodating member 32.
- the bolt 38 is inserted into the gap formed on the outer peripheral portion of the engaging portion 33a of the accommodating member 32, and the nut 38 is screwed into the tip of the bolt 37 to fasten the bolt 37.
- the accommodating member 32 is provided with a seal member 39 so as to surround the periphery of the open portion 32b, and by fastening the fastening member described above, the seal member 39 comes into close contact with the peripheral edge of the opening 5b.
- the opening 5b and the opening 32b are sealed.
- the drilling machine 7 is hermetically connected to the open end 5c of the neck 5d.
- the drilling machine 7 horizontally sets the mounting flange cylinder 71 as an accommodating cylinder, the cutter 72 for drilling the fluid pipe 1, the drive motor 74 for rotating the cutter 72 in the mounting flange cylinder 71, and the cutter 72 in the horizontal direction. It is mainly composed of an advancing / retreating mechanism 73 for advancing / retracting.
- the cutter 72 of this embodiment is formed in a bottomed tubular shape having a diameter smaller than that of the fluid pipe 1, and is arranged coaxially with a hole saw 72a having a cutting blade at its tip along the circumferential direction and a rotation axis of the hole saw 72a.
- the cutter 72 is composed of a center drill 72b that is provided and protrudes toward the tip of the cutting blade.
- the cutter 72 is arranged concentrically with the open end 5c of the neck 5d of the housing 5, is inserted into the neck 5d of the housing 5 from the open end 5c side, and at least the pipe wall of the fluid pipe 1 is inserted. It is possible to proceed to the penetrating position.
- a pressing portion is inserted into the support portions 36, 36 of the working valve 3 as an insertion means for inserting the drilling machine 7 into the housing 5.
- the pressing portion 80 includes a support plate 81 connected to the support portion 36 of the work valve 3, a male screw portion 82 fixedly supported by the support plate 81, and a pressing piece 83 inserted through the male screw portion 82. It is mainly composed of a female screw portion 84 screwed into the male screw portion 82 so as to sandwich the pressing piece 83.
- the pressing portion 80 moves the pressing piece 83 in the axial direction of the male screw portion 82 by screwing the female screw portion 84, and housings the mounting flange cylinder 71 of the drilling machine 7 fitted to the pressing piece 83. It can be attached to or removed from the neck portion 5d of 5. Further, it is preferable to attach a cap 90 for restricting the movement of the mounting flange cylinder 71 to the tip end side of the male screw portion 82 to position the mounting flange cylinder 71 when moving it to the pull-out side.
- the cap 90 may be U-shaped in cross section, may have a female screw on the inner surface, or may be a part constituting the pressing portion 80.
- the mounting flange cylinder 71 of the punching machine 7 is inserted into the neck portion 5d by the pressing portion 80 described above, and the concave portion 75 formed at the tip of the mounting flange cylinder 71 is inserted into the neck portion 5d. Fits into the open end 5c. More specifically, the concave portion 75 of the mounting flange cylinder 71 includes an inner wall portion 75a that is internally fitted to the side wall of the open end portion 5c, an outer wall portion 75b that is externally fitted to the side wall of the open end portion 5c, and these inner wall portions 75a.
- the mounting flange cylinder 71 of the drilling machine 7 is fitted in a state of being positioned at the open end portion 5c of the neck portion 5d.
- the inner wall portion 75a constitutes the tip portion of the mounting flange cylinder 71, and is formed in a substantially tubular shape having an outer peripheral surface having a diameter slightly smaller than the inner peripheral surface 5h and 5j of the neck portion 5d. It is inserted into the neck portion 5d up to a position covering the opening. That is, the inner wall portion 75a of the mounting flange cylinder 71 included in the drilling machine 7 constitutes the tubular portion of the present invention.
- the inner wall portion 75a is slidably arranged along the inner peripheral surfaces 5h and 5j of the neck portion 5d, the accuracy of movement of the inner wall portion 75a is improved, and the recessed portion 5i is reliably closed or closed. Can be opened.
- annular seal members 76a and 76b separated in the horizontal direction are provided on the outer peripheral surface of the inner wall portion 75a, and these seal members 76a and 76b straddle the recessed portion 5i in the axial direction of the neck portion 5d.
- the sealing member 76b provided on the side opposite to the fluid pipe 1 side of the recessed portion 5i constitutes the sealing material of the present invention.
- an engaging member 77 having a divided structure having a substantially U-shaped inner peripheral portion in cross section that engages with the outer wall portion 75b is assembled along the outer circumference of the outer wall portion 75b.
- the engaging member 77 does not necessarily have to be used.
- connection work of the work valve 3 to the opening 5b of the neck portion 5d and the connection work of the drilling machine 7 to the open end portion 5c of the neck portion 5d are not necessarily limited to the above-mentioned order, and the connection work of the punching machine 7 is performed. After that, the connection work of the work valve 3 may be performed, or these connection operations may be performed in parallel.
- the working valve body 31 of the working valve 3 is arranged in the housing inner 32a of the housing member 32 and the casing is formed.
- the cutter 72 is rotated by the drive motor 74 of the drilling machine 7, and the cutter 72 is advanced by rotating the handle 73a constituting the advancing / retreating mechanism 73 to move the cutter 72 forward. Perforate the tube wall in a continuous flow state.
- a part of the chips of the fluid pipe 1 generated at the time of drilling enters the neck portion 5d, but the fluid pipe 1 side is closer to the recessed portion 5i. Since a seal member 76a that seals the inner surface of the neck portion 5d in the circumferential direction is provided on the outer peripheral portion of the inner wall portion 75a, the seal member 76a faces the recessed portion 5i through the gap between the inner wall portion 75a and the neck portion 5d. It is possible to block the ingress of chips. The chips that have entered the neck portion 5d will be deposited or adhered to the inner surface of the inner wall portion 75a that covers the recessed portion 5i.
- the sealing member 76b as a sealing material is provided on the outer peripheral portion of the inner wall portion 75a on the side opposite to the fluid pipe 1 side of the recessed portion 5i, the inner wall portion after drilling as well as during drilling. Even when the 75a is pulled in, the seal member 76b can be used for sealing, and perforation can be performed in a continuous flow state.
- the tip portion of the inner wall portion 75a is formed with a protruding portion 75d protruding toward the inner diameter side, the inner wall portion is formed not only during drilling but also when the mounting flange cylinder 71 is removed from the neck portion 5d after drilling. Chips accumulated or adhering to the inner surface of the 75a can be retained on the inner surface of the inner wall portion 75a without falling on the inner peripheral surfaces 5h, 5j and the recessed portion 5i of the neck portion 5d.
- the tip surface 75e of the inner wall portion 75a of this embodiment is formed to be flat, and a part of the tip surface 75e is formed to be curved in the circumferential direction toward the base end side in the neck portion 5d of the housing 5.
- the insertion of the inner wall portion 75a is completed by contacting the portion 5k and the above-mentioned inner bottom portion 75c in contact with the open end portion 5c.
- a female screw hole 5p is formed on the fluid pipe 1 side, that is, on the base end side of the neck portion 5d, as a discharge port that communicates with the inside and outside of the housing 5.
- a ball valve (not shown) provided so as to open and close the female screw hole 5p is installed to discharge chips generated at the time of drilling to the outside together with the fluid.
- the female screw hole formed on the base end side of the neck portion 5d which is upstream of the recessed portion 5i, without the chips generated during drilling approaching the recessed portion 5i side. Chips can be discharged to the outside via 5p.
- the above-mentioned ball valve is removed in a continuous flow state after drilling, and instead of this, it is sealed with an opening / closing bolt 5n as shown in FIG.
- the chip discharge port is not limited to the above, and for example, as shown in FIG. 7 as a modification of this embodiment, a communication port 75p communicating with the female screw hole 5p may be formed in the inner wall portion 75a. .. By doing so, the chips that have entered the neck portion 5d are discharged through the communication port 75p and the female screw hole 5p. Further, the tip surface 75f of the inner wall portion 75a of this modification is curved so as to be along the step portion 5k formed to be curved in the circumferential direction on the base end side in the neck portion 5d, that is, the tip surface 75f is curved over the entire circumference. It comes into contact with the step portion 5k. By doing so, the inner wall portion 75a is stably positioned at the position where the recessed portion 5i is closed.
- the working valve body 31 can be brought into contact with the clean recessed portion 5i in which the inner wall portion 75a is opened, and the housing 5 can be sealed.
- the mounting position of the drilling machine 7 is close to the fluid pipe 1, and the inner wall portion 75a of the mounting flange cylinder 71 and the inner peripheral surfaces 5h and 5j of the neck portion 5d are inserted and fitted to perform the drilling operation. 7 is positioned concentrically with respect to the housing 5 as much as possible, and even if the parallelism of the mounting flange of the punching machine 7 main body and the connection surface of the mounting flange cylinder 71 is deviated, the influence on the drilling portion is minimized and drilling is performed. The deviation is suppressed.
- the width of the working valve body 31 is reduced, so that the cost is suppressed, the distance of the drilling machine 7 from the fluid pipe 1 is shortened, the misalignment of the drilling is minimized, and the flow is reduced.
- the hole 1b can suppress the turbulence of the road, and by this perforation, ideal fluid control can be performed by perforating without misalignment even when the plug 11 (valve body) of the control valve 10 described later is inserted. Can be formed.
- the drilling machine 7 is removed with the inside of the housing 5 sealed by the work valve body 31 of the work valve 3.
- a discharger (not shown) for discharging chips generated during drilling is connected to the open end portion 5c of the neck portion 5d, and the housing 5 and the fluid pipe 1 are connected by the discharger. It is preferable to discharge the chips remaining inside the slab to the outside.
- the ejector can open and close a tubular portion having one end movablely opening inside the housing 5 and the other end communicating with the outside of the housing 5 and the inside of the tubular body. It is possible to apply the one composed of an on-off valve portion.
- the flow control valve 10 has a plug 11 (valve body) that passes through the perforated hole 1b of the fluid pipe 1 and moves horizontally so as to be able to open and close the inside of the pipe, and the plug 11.
- the plug 11 Is mainly composed of a valve housing 12 having a peripheral side portion 13 which is movable in the horizontal direction and has an open tip.
- the valve housing 12 includes a shaft member 14 extending in the horizontal direction in a state in which the valve housing 12 is pivotally supported so as to be rotatable and unable to move forward and backward.
- the plug 11 By rotating the operation portion 14a at the end of the shaft member 14 protruding outward from the body 12, the plug 11 is configured to be movable with respect to the valve housing 12 in the axial direction of the shaft member 14.
- the plug 11 includes a female screw piece 11a having a female screw screwed into the shaft member 14, a core portion 11b that engages with the female screw piece 11a and operates following the female screw piece 11a, and the entire core portion 11b. It is mainly composed of a plug portion 11c made of an elastic material coated over the outer surface.
- the plug 11 moves into the pipe through the hole 1b of the fluid pipe 1 by the rotation of the shaft member 14 described above, and the plug 11c is in close contact with the hole 1b of the fluid pipe 1 and the inner peripheral surface 1c over the entire circumference. By doing so, the flow path in the pipe is completely blocked, or the flow path in the pipe is partially blocked according to the amount of movement of the plug portion 11c so that the flow rate can be controlled.
- valve housing 12 of the flow control valve 10 has an air vent hole 13a formed on the end side thereof, which penetrates the peripheral side portion 13 upward and has a female screw portion into which the normally closed opening / closing plug 15 is screwed.
- two recesses 13b and 13b extending over the entire circumference are formed on the outer peripheral surface on the distal end side of the peripheral side portion 13 so as to be separated in the horizontal direction, and sealing members 21 and 22 are provided in the respective recesses 13b.
- the tip end side of the valve housing 12 will be referred to as a first sealing member 21, and the proximal end side of the first sealing member 21 will be referred to as a second sealing member 22.
- the first sealing member 21 and the second sealing member 22 of this embodiment are each made of an elastic material integrally formed in an annular shape and have the same shape.
- the first sealing member 21 is composed of a holding portion 21a on the base end side held in the recess 13b and a deforming portion 21b connected to the holding portion 21a to allow elastic deformation, and these sealing members 21.
- the outermost diameter of the deformed portion 21b is formed to be larger than the inner diameter of the neck portion 5d. Since the second sealing member 22 has the same shape as the first sealing member 21 described above, the description thereof will be omitted.
- the horizontal separation distance between the first sealing member 21 and the second sealing member 22 is configured to be larger than the horizontal opening width of the opening 5b of the neck portion 5d.
- the hydraulic rod 60 has a support plate 61 connected to the support portion 36 of the work valve 3, a cylinder 62 having an inner space structure fixedly supported by the support plate 61, and one end fitted into the cylinder 62. It is mainly composed of a piston 63.
- the hydraulic rod 60 supplies a hydraulic fluid such as oil to the inside of the cylinder 62 via a hydraulic fluid hose (not shown) connected to the supply ports 62a and 62a by a supply pump or the like, and the piston 63 receives the hydraulic pressure. Can be expanded and contracted while pressing horizontally. Further, the pair of hydraulic rods 60 and 60 are configured so that the pistons 63 and 63 expand and contract synchronously, and the upper ends thereof are always arranged at the same position.
- the pistons 63 and 63 of the hydraulic rod 60 are extended, and a pressing member 64 for pressing the flow control valve 10 is erected at the tip of these pistons 63 and 63 and fastened with a nut 65. Further, the peripheral edge of the end portion of the valve housing 12 of the flow control valve 10 is fitted to the fitting portion 64a formed through the pressing member 64 substantially in the center, and the pistons 63 and 63 are fluidized by hydraulic pressure.
- a pressing force is applied to the flow control valve 10 via the pressing surface 64b, which is the bottom surface of the pressing member 64, on the fluid pipe 1 side, and the flow control valve 10 is gradually applied in the neck portion 5d. Move to the fluid tube 1 side.
- the flow control valve 10 inserted into the neck portion 5d by the hydraulic rod 60 is maintained in a sealed state by at least the sealing member 21 being brought into close contact with the inner peripheral surface 5h on the outer side of the opening 5b of the neck portion 5d.
- the working valve body 31 of the working valve 3 is opened.
- the first sealing member 21 extends inward from the opening 5b (on the fluid pipe 1 side) and is in close contact with the inner peripheral surface 5j of the neck portion 5d, and the second sealing member 22 is the opening. It is pressed to an installation position closer to the inner peripheral surface 5h on the outer side of 5b (see FIGS. 9 and 10). At this installation position, the hook portions 13e and 13e that project toward the outer diameter side of the peripheral side portion 13 of the valve housing 12 and further extend inward are engaged with each other at the open end portion 5c of the neck portion 5d of the housing 5.
- the flow control valve 10 can be fitted to the notch portion 5f as a portion and the movement of the flow control valve 10 in the circumferential direction can be restricted with respect to the housing 5, it is possible to avoid the possibility that the flow control valve 10 will move due to the flow of the fluid in the pipe.
- the flange portion 5e of the open end portion 5c of the housing 5 and the overhanging portion 13d of the flow control valve 10 superposed on the flange portion 5e are formed in a substantially U-shape in cross section.
- the opening / closing plug 15 is screwed out to open the air vent hole 13a, so that the air remaining in the valve housing 12 of the flow control valve 10 in the sealed state is released to the outside. discharge.
- the pressing member 64 and the hydraulic rod 60 assembled to the flow control valve 10 are removed, and further, the opening of the housing 5 is opened.
- the work valve 3 attached to the part 5b is sequentially removed.
- the first sealing member 21 seals the inner peripheral surface 5j below the opening 5b of the neck portion 5d, leakage of the internal fluid is prevented even if the opening 5b is opened. Therefore, the working valve 3 can be removed without sealing with the plug 11, and there is no risk of the working valve 3 becoming deteriorated.
- the closing lid 9 is hermetically attached to the opening 5b after the work valve 3 is removed.
- the pipe drilling device and the installation method thereof according to the second embodiment will be described with reference to FIGS. 11 to 17.
- the same configurations as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted.
- the installation status of the pipeline is the same as in the above-described embodiment.
- the pipe drilling device according to the present invention includes a housing 105 for externally fitting an existing fluid pipe 101, a work valve 103 for opening and closing the inside of the housing 105, and a housing 105. It is mainly composed of a punching machine 107 for drilling the fluid pipe 101.
- the fluid pipe 101 of this embodiment is a ductile cast iron pipe, and is formed as a straight pipe having a substantially circular cross-sectional view as shown in FIG. 11 (a).
- the seal member 104 for sealing the perforated portion of the fluid pipe 101 is provided.
- the housing 105 constituting the pipe drilling device is fitted on the outside in a hermetically sealed manner.
- the housing 105 has a divided structure composed of a plurality of divided bodies.
- the housing 105 is mainly composed of a first divided body 151 forming one side portion and a second divided body 152 forming the other side portion. These are fastened by a fastening member 102.
- the first divided body 151 of the housing 105 has a pipeline housing portion 105a extending in the pipeline direction along the fluid pipe 101 and a pipe housing portion 105a that branches horizontally at substantially the center of the pipeline housing portion 105a and extends. It is provided and is composed of an open end 105c that opens in the branching direction and a tubular neck 105d that has an opening 105b that opens laterally, and is formed in a substantially T-shape in a plan view.
- the open end 105c of the neck 105d has a pair of flanges 105e protruding in the outer diameter direction toward the pipeline direction of the fluid pipe 101, and a plurality of through holes formed along the circumferential direction of the flange 105e. It has a plurality of push bolts 105f configured to be inserted into the pipe.
- the neck portion 105d is provided with a pipe thickness portion 105g whose outer surface protrudes in the radial direction on the peripheral side portion thereof in a tubular shape, and an opening is opened in the pipe thickness portion 105g in one direction in the pipeline direction of the fluid pipe 1. It has a part 105b. As shown in FIG. 11, the opening 105b is opened in a vertically long substantially rectangular shape in a side view, and the working valve body 131 of the working valve 103 is formed so as to be insertable as will be described later.
- the inner peripheral portion of the neck portion 105d is at the same position as the inner peripheral surface 105h formed on a curved surface having a substantially circular side view and the opening 105b in the axial direction of the neck portion 105d.
- a recessed portion 105i as a concave valve seat portion recessed in the outer diameter direction along the circumferential direction, and a recessed portion 105i formed on the base end side of the neck portion 105d with respect to the recessed portion 105i, and inside the tip end side of the neck portion 105d.
- an inner peripheral surface 105j formed to have a diameter slightly smaller than that of the peripheral surface 105h, and a stepped portion 105k connected to the proximal end side of the inner peripheral surface 105j and protruding in the inner diameter direction.
- a communication opening 117 is formed at the base end of the neck 105d as a discharge port that penetrates the neck 105d inside and outside.
- the work valve 103 constituting the pipe drilling device according to the present invention is hermetically connected to the opening 105b of the neck 105d.
- the work valve 103 has a work valve body 131 that slides in the housing 105 so as to be openable and closable, an accommodation internal 132a that accommodates the work valve body 131 so as to be slidable in the horizontal direction, and an opening having one end on the side thereof open. It is mainly composed of an accommodating member 132 as a working valve housing having a portion 132b.
- the accommodating member 132 includes a shaft member 134 that is rotatable and irreversibly supported and extends in the horizontal direction, and a working valve body 131 is screwed onto the shaft member 134.
- the working valve body 131 is configured to be slidable with respect to the accommodating member 132 by rotating the operating member 135 attached to the tip of the shaft member 134 protruding outward.
- an endless sealing member 131a is installed or covered along the side portions of both side surfaces of the working valve body 131, and the peripheral edge portion of the sealing member 131a is in surface contact with the side wall 105r of the recessed portion 105i.
- the inside of the housing 105 can be closed in a sealed manner.
- the peripheral portion of the working valve body 131 is provided on the side wall 105r of the recessed portion 105i by utilizing the pressure in the fluid pipe 101. Can be brought into surface contact with each other, so that the sealing performance can be improved.
- the working valve body 131 can be formed into a thin plate shape by bringing the peripheral edge portion of the working valve body 131 into surface contact with the recessed portion 105i formed on the inner surface of the neck portion 105d, so that the housing 105 is branched.
- the extension of the direction, that is, the stroke of the drilling machine 107 can be shortened, and the drilling accuracy can be improved without the punching machine 107 being eccentric.
- by making the working valve body 131 into a thin plate it is possible to achieve cost reduction by downsizing the working valve body 131 and the housing 105, and since the drilling accuracy is high, the plug body 111 of the control valve 110, which will be described later, is inserted. Is properly performed, and water stopping and fluid controllability can be improved.
- the accommodating member 132 is arranged on the outer surface of the neck 105d at a position where the opening 132b communicates with the opening 105b of the neck 105d.
- the accommodating member 132 is fastened to the neck 105d.
- the fastening member is screwed over a plurality of through holes formed so as to surround the opening portion 132b of the accommodating member 132 and a plurality of female screw holes formed so as to surround the opening portion 105b of the neck portion 105d. It is concluded by doing.
- the accommodating member 132 is provided with a seal member 139 so as to surround the periphery of the open portion 132b, and by fastening the fastening member described above, the seal member 139 comes into close contact with the peripheral edge of the opening 105b.
- the opening 105b and the opening 132b are sealed.
- the drilling machine 107 is hermetically connected to the open end 105c of the neck 105d.
- the punching machine 107 advances and retracts the mounting flange cylinder 171, the cutter 172 for drilling the fluid pipe 101, the drive motor 174 for rotating the cutter 172 in the mounting flange cylinder 171 and the cutter 172 in the horizontal direction.
- It is mainly composed of an advancing / retreating mechanism 173 for making the engine move.
- the cutter 172 is formed in a bottomed tubular shape having a diameter smaller than that of the fluid tube 101, and has a hole saw 172a having a cutting blade at its tip along the circumferential direction and a cutting blade arranged coaxially with the rotation axis of the hole saw 172a. It is composed of a center drill 172b that protrudes toward the front.
- a tubular body 178 for movably fitting the cutter 172 is provided so as to be movable in the horizontal direction with respect to the mounting flange cylinder 171.
- the tubular body 178 is formed in a substantially tubular shape having an outer peripheral surface having a diameter slightly smaller than the inner peripheral surfaces 105h and 105j of the neck portion 105d, and the tubular body 178 is fixed to the base end side thereof.
- the operation portion 179 is inserted into the neck portion 105d to a position covering the opening of the recessed portion 105i.
- the tubular body 178 included in the drilling machine 107 constitutes the tubular portion of the present invention. Further, the tubular body 178 is positioned at a predetermined position covering the opening of the recessed portion 105i by fixing the operating portion 179 with the fixing screw 179a screwed into the mounting flange cylinder 171.
- the positioning is not limited to the one using the fixing screw 179a, and may be, for example, a mechanism for pressing the head of the operation unit 179.
- tubular body 178 is slidably arranged along the inner peripheral surfaces 105h and 105j of the neck portion 105d, the accuracy of movement of the tubular body 178 is improved and the recessed portion 105i is reliably arranged. Can be blocked or opened.
- the outer peripheral surface of the tubular body 178 is arranged close to the inner peripheral surfaces 105h and 105j of the neck portion 105d, and by doing so, foreign matter can be prevented from entering the recessed portion 105i.
- the flange portion 175 formed at the tip of the mounting flange cylinder 171 is sealed to the flange portion 105e of the open end portion 105c of the neck portion 105d by a plurality of fastening members 177 in the circumferential direction.
- the working valve body 131 of the working valve 103 is arranged in the housing inside 132a of the housing member 132 and inside the housing 105.
- the cutter 172 is rotated by the drive motor 174 of the drilling machine 107, and the cutter 172 is advanced forward by the advancing / retreating mechanism 173 to drill the pipe wall of the fluid pipe 101 in a continuous flow state.
- the opening of the recessed portion 105i is a tubular body. Since the 178 is closed, it is possible to prevent chips from entering the recessed portion 105i.
- the chips that have entered the neck portion 105d will be deposited or adhered to the inner surface of the tubular body 178 that covers the recessed portion 105i.
- an elastic body is adhered or vulcanized to the outer peripheral portion of the tubular body 178 to create a gap between the inner peripheral surfaces 105h and 105j and the recessed portion 105i, or a gap between each arbitrary portion. You may try to eliminate it.
- the tip of the tubular body 178 is formed with a protruding portion 178d protruding toward the inner diameter side, the mounting flange cylinder 171 and the tubular body 178 are removed from the neck 105d not only during drilling but also after drilling. At this time, chips accumulated or adhering to the inner surface of the tubular body 178 do not fall on the inner peripheral surfaces 105h, 105j and the recessed portion 105i of the neck portion 105d, but stay on the inner surface of the tubular body 178. Can be done.
- the tip surface 178e of the tubular body 178 of this embodiment is formed to be flat, and the tip surface 178e is in contact with the stepped portion 105k formed in the neck portion 105d of the housing 105 to form the tubular body. The insertion of 178 is completed.
- the cutter 172 when the fluid pipe 101 is cut by the cutter 172, the section 101a separated from the fluid pipe 101 is held in the hole saw 172a. Then, as shown in FIG. 13, the cutter 172 is pulled into the inside of the mounting flange cylinder 171 together with the section 101a, the tubular body 178 is also pulled into the inside of the mounting flange cylinder 171, and the casing is formed by the working valve body 131 of the working valve 103. By closing the inside of the body 105, the drilling work of the fluid pipe 101 is completed.
- the punching machine 107 since the mounting position of the punching machine 107 is close to the fluid pipe 101, the punching machine 107 is positioned concentrically with respect to the housing 105 as much as possible, and the mounting flange of the punching machine 107 main body and the mounting flange cylinder 171 Even if the parallelism of the connecting surface is deviated, the influence on the perforated portion is minimized and the perforated deviation is suppressed.
- the drilling machine 107 is removed while the inside of the housing 105 is hermetically closed by the work valve body 131 of the work valve 103.
- a discharger (not shown) for discharging chips generated during drilling is connected to the open end 105c of the neck portion 105d, and the discharger is used to connect the inside of the housing 105 or the fluid pipe 101. It is preferable to discharge the chips remaining in the water to the outside.
- the portions 116a are hermetically connected by a plurality of fastening members 116d in the circumferential direction.
- the storage cylinder 116 is formed in a bottomed cylinder shape in which the tip thereof is opened and the base end thereof is closed by a closing lid 116b having a through hole in the center. Further, the closing lid 116b is formed with a communication opening 127 that communicates with the inside and outside of the accommodating cylinder 116, and a ball valve 128 is always screwed into the communication opening 127.
- the flow control valve 110 was assembled as an insertion means for inserting the flow control valve 110 into the housing 105 so that the control valve 110 could be moved horizontally from the outside of the storage cylinder 116 and was detachably attached.
- An insertion machine 160 is provided. The insertion machine 160 is extended so as to penetrate the center of the base end portion of the storage cylinder 116 in the horizontal direction, and the extension rod 161, the operation stick 162, and the insertion cylinder 163 are mainly configured in order from the center side thereof. ing.
- the extension rod 161 is screwed into a mounting jig 126 whose tip is attached to the base end of the valve housing 112 of the flow control valve 110. At the same time, its base end extends outward from the storage cylinder 116.
- the operating rod 162 that fits the extension rod 161 externally is pivotally supported by a tubular portion 116c that constitutes the accommodating cylinder 116 and covers the through hole of the closing lid 116b so as to be rotatable and axially immovable.
- a grip portion 162a for rotation operation is provided at the end.
- the insertion cylinder 163 that externally fits the operation rod 162 is pivotally supported with respect to the cylinder portion 116c so as to be non-rotatable and movable in the axial direction, and the tip portion 163a thereof is pivotally supported by the mounting jig 126 and the flange portion 161a of the extension rod 161. It is provided with a female screw portion 163b that is sandwiched in the horizontal direction and screwed into the male screw portion 162b of the operation jig 162.
- a substantially rectangular through hole 163c is formed in the tip portion 163a of the insertion cylinder 163 in a side sectional view, and is projected in a substantially rectangular shape in a side view so as to complement the through hole 163c.
- the protruding end portion 126a of the mounting jig 126 is internally fitted in the through hole 163c. By doing so, the flow control valve 110 to which the mounting jig 126 is attached is restricted from moving in the circumferential direction with respect to the insertion cylinder 163.
- the side view shape of the through hole 163c of the insertion cylinder 163 and the protruding end portion 126a of the mounting jig 126 that complements the through hole 163c is not limited to a substantially rectangular shape, and may be a non-circular shape such as a rectangular shape, an elliptical shape, or an oval shape. Just do it.
- the flow control valve 110 has a plug 111 (valve body) that passes through the perforated hole 101b of the fluid pipe 101 and moves horizontally so as to be able to open and close the inside of the pipe, and the plug 111.
- a valve housing 112 having a peripheral side portion 113 having an open tip and accommodating the surface movably in the horizontal direction.
- the valve housing 112 includes a shaft member 114 extending in the horizontal direction in a state of being pivotally supported so as to be rotatable and immovable, and a plug 111 is screwed onto the shaft member 114.
- the plug body 111 is configured to be movable in the horizontal direction with respect to the valve housing 112.
- the plug 111 includes a female screw piece 111a having a female screw screwed into the shaft member 114, a plug portion 111b made of an elastic material, and the female screw piece. It is mainly composed of a plug body 111c that engages with 111a and follows the operation, and a fixing member 115 that is integrally molded with the plug body 111b by vulture or the like and connects the plug body 111b to the plug body 111c. It is configured. The plug 111 is moved into the pipe through the hole 101b of the fluid pipe 101 by the rotation of the shaft member 114 described above, and the plug 111b is all around the hole 101b of the fluid pipe 101 and the inner peripheral surface 101c.
- the flow path in the pipe is completely blocked, or the flow path in the pipe is partially blocked according to the amount of movement of the plug body 111c so that the flow rate can be controlled.
- the female screw piece 111a initially moves at the same time as the plug body portion 111b and the plug body 111c, but when the plug body portion 111b comes into contact with the inner peripheral bottom portion of the pipe, the female screw piece 111a moves to the plug body portion 111b and the plug body 111c.
- the blades on both sides of the plug body portion 111b are pushed and expanded in the outer diameter direction to assist the water stoppage.
- a recess 113b extending over the entire circumference is formed on the outer peripheral surface on the distal end side of the peripheral side portion 113, and a sealing member 121 is provided in the recess 113b.
- the storage cylinder 116 containing the flow control valve 110 inside is sealed to the open end 105c of the housing 105 as described above.
- the communication opening 117 provided in the neck portion 105d of the housing 105 ahead of the working valve body 131 and the working valve body 131 The communication opening 127 provided in the closing lid of the storage cylinder 116 on the base end side is communicated with a connection hose (not shown).
- a connection hose (not shown).
- the work valve body 131 is opened and the flow control valve 110 in the accommodating cylinder 116 is installed toward the housing 105. More specifically, by rotating the operation stick 162 of the insertion machine 160 in the forward rotation direction, the insertion cylinder 163 screwed into the operation stick 162 moves toward the fluid pipe 101. Along with the movement of the insertion cylinder 163, a pressing force is applied to the flow control valve 110 via the mounting jig 126, and the flow control valve 110 is gradually moved within the neck portion 105d. The extension rod 161 screwed into the mounting jig 126 also follows the flow control valve 110 and moves downward.
- the flow control valve 110 is pressed to an installation position where the sealing member 121 exceeds the opening 105b and is in close contact with the inner peripheral surface 105j of the neck 105d.
- the extension rod 161 screwed into the mounting jig 126 is rotated to remove it from the mounting jig 126.
- the operating rod 162 was rotated in the reverse direction, and the insertion cylinder 163 screwed into the operating rod 162 was moved toward the base end side, whereby the tip portion 163a was fitted into a substantially rectangular shape. Remove from the tip 126a of the mounting jig 126.
- the in-pipe fluid introduced into the storage cylinder 116 is discharged by a drain portion (not shown), and the storage cylinder 116 is discharged together with the insertion machine 160 in the housing 105. Remove from.
- a closing lid 109 that seals the periphery of the opening 105b after removing the working valve 103 is detachably attached, and is formed in an annular shape on the flange portion 105e of the neck portion 105d.
- the closing ring 140 is attached in the circumferential direction by a plurality of fastening members 141.
- the pipe drilling device and the installation method thereof according to the third embodiment will be described with reference to FIGS. 18 to 23.
- the same configurations as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted.
- the installation status of the pipeline is the same as in the above-described embodiment.
- the pipe drilling device according to the present invention includes a housing 205 that fits an existing fluid pipe 201 on the outside, a work valve 203 that opens and closes the inside of the housing 205, and a housing 205. It is mainly composed of a punching machine 207 for drilling the fluid pipe 201.
- the fluid pipe 201 of this embodiment is a ductile cast iron pipe, and is formed as a straight pipe having a substantially circular shape in cross section as shown in FIG.
- the seal member 204 for sealing the perforated portion of the fluid pipe 201 is provided.
- the housing 205 constituting the tube drilling device is fitted on the outside in a sealed manner.
- the housing 205 has a divided structure composed of a plurality of divided bodies.
- the housing 205 is mainly composed of a first divided body 251 constituting one side portion and a second divided body 252 constituting the other side portion. These are fastened by a fastening member 202, and the housing 205 is externally fitted to the fluid pipe 201 so as to be rotatable in the circumferential direction while being sealed.
- the space between the first divided body 251 and the second divided body 252 is also sealed with a sealing member.
- the first divided body 251 of the housing 205 has a pipeline housing portion 205a extending in the pipeline direction along the fluid pipe 201 and a pipe housing portion 205a that branches horizontally at substantially the center of the pipeline housing portion 205a and extends. It is provided and is composed of an open end portion 205c that opens in the branching direction and a tubular neck portion 205d that has an opening portion 205b that opens laterally, and is formed in a substantially T-shape in a plan view.
- the neck portion 205d has an opening portion 205b that opens in one direction in the pipeline direction of the fluid pipe 201 on its tubular peripheral side portion.
- the opening 205b is opened in a vertically long substantially rectangular shape in a side view, and the work valve body 231 of the work valve 203 is formed so as to be insertable as will be described later.
- the inner peripheral portion of the neck portion 205d is a curved surface of a substantially elliptical side view and a linear inner peripheral surface 205h formed in the horizontal direction, and the axial direction of the neck portion 205d.
- a concave portion 205i as a concave valve seat portion recessed in the outer diameter direction along the circumferential direction and a recessed portion 205i formed on the base end side of the neck portion 205d from the recessed portion 205i.
- an inner peripheral surface 205j formed substantially flush with the inner peripheral surface 205h on the tip end side of the neck portion 205d, and a stepped portion 205k connected to the base end side of the inner peripheral surface 205j and protruding in the inner diameter direction. ..
- the work valve 203 constituting the pipe drilling device according to the present invention is hermetically connected to the opening 205b of the neck portion 205d.
- the work valve 203 has the same configuration as that of the first embodiment, and accommodates the work valve body 231 that slides in the housing 205 so as to be openable and closable, and the work valve body 231 that slides in the horizontal direction. It is mainly composed of an accommodating member 232 as a work valve housing, and a mounting member 233 having an inner peripheral surface that can be fitted to the neck portion 205d together with the accommodating member 232.
- the drilling machine 207 is hermetically connected to the open end of the neck 205d.
- the drilling machine 207 includes a mounting flange cylinder 271, an end mill 272 as a cutter for drilling the fluid pipe 201, a drive motor 274 for rotating the end mill 272 in the mounting flange cylinder 271, and an end mill in the flange cylinder 271. It is mainly composed of an advancing / retreating mechanism 273 for advancing / retracting the 272 in the horizontal direction.
- the end mill 272 of this embodiment is formed on a shaft body having a diameter smaller than that of the fluid pipe 1, and is provided with a cutting blade over its tip and peripheral surface.
- a pressing portion 80 is attached to the support portions 236 and 236 of the work valve 203 as an insertion means for inserting the punching machine 207 into the housing 205.
- the detailed configuration of the pressing portion 80 and the mounting procedure are the same as those in the first embodiment, and thus the description thereof will be omitted.
- the mounting flange cylinder 271 of the punching machine 207 is inserted into the neck portion 205d by the pressing portion 80, and the flange portion 271a formed at the base end of the mounting flange cylinder 271 is opened to the neck portion 205d. It is brought into contact with the end portion 205c and fastened by the fastening member 279. Further, the mounting flange cylinder 271 is formed in a substantially tubular shape having an outer peripheral surface having a diameter slightly smaller than the inner peripheral surfaces 205h and 205j of the neck portion 205d, and is formed in the neck portion 205d up to a position covering the opening of the recessed portion 205i. It is designed to be inserted. That is, the mounting flange cylinder 271 included in the drilling machine 207 constitutes the tubular portion of the present invention.
- the mounting flange cylinder 271 is slidably arranged along the inner peripheral surfaces 205h and 205j of the neck portion 205d, the accuracy of movement of the mounting flange cylinder 271 is improved and the recessed portion 205i is reliably arranged. Can be blocked or opened.
- the mounting flange cylinder 271 of the drilling machine 207 and the neck portion 205d of the housing 205 are sealed.
- a seal member for sealing the inner peripheral surface 205j of the neck portion 205d may be provided.
- the drilling process of the fluid pipe 1 by the drilling machine 207 will be described.
- the working valve body 231 of the working valve 203 is arranged inside the housing of the housing member 232, and the inside of the housing 205 is inside the housing 205.
- the drive motor 274 of the drilling machine 207 rotates the end mill 272, and the advancing / retreating mechanism 273 advances the end mill 272 forward to punch and penetrate the pipe wall of the fluid pipe 201 in an uninterrupted state.
- the perforator 207 is attached and the housing 205, which is hermetically fitted to the fluid pipe 201 in a sealed manner, swings by a predetermined angle ⁇ in the circumferential direction of the fluid pipe 201 while maintaining this sealed state.
- ⁇ a predetermined angle ⁇ in the circumferential direction of the fluid pipe 201 while maintaining this sealed state.
- the tip portion of the mounting flange cylinder 271 is formed with a protruding portion 271d protruding toward the inner diameter side, the mounting flange cylinder 271 is mounted not only at the time of drilling but also when the mounting flange cylinder 271 is removed from the neck portion 205d after drilling. It is possible to prevent chips accumulated or adhering to the inner surface of the flange cylinder 271 from falling on the inner peripheral surfaces 205h and 205j of the neck portion 205d and the recessed portion 205i.
- a female screw hole 205p is formed on the fluid pipe 201 side, that is, on the base end side of the neck portion 205d, as a discharge port that communicates with the inside and outside of the housing 205. ..
- a ball valve (not shown) provided so as to open and close the female screw hole 205p is installed to discharge chips generated at the time of drilling to the outside together with the fluid.
- the mounting flange cylinder 271 may have a curved tip surface, or may have a communication port that communicates with the chip discharge port.
- the end mill 272 is pulled into the inside of the mounting flange cylinder 271, and the mounting flange cylinder 271 is further pulled back from the recessed portion 205i.
- the drilling work of the fluid pipe 201 is completed.
- chips generated by the perforation of the fluid pipe 201 in the housing 205 are generated in the recessed portion 205i.
- the work valve body 231 can be brought into contact with the clean recessed portion 205i in which the mounting flange cylinder 271 is opened, and the housing 205 can be sealed.
- the drilling machine 207 is removed while the inside of the housing 205 is hermetically closed by the work valve body 231 of the work valve 203.
- a discharger (not shown) for discharging chips generated during drilling is connected to the open end portion 205c of the neck portion 205d, and the housing 205 and the fluid pipe 201 are connected by the discharger. It is preferable to discharge the chips remaining inside the slab to the outside.
- the flow control valve 210 has a plug 211 (valve body) that passes through the perforated hole 201b of the fluid pipe 1 and moves horizontally so as to be able to open and close the inside of the pipe, and the plug. It is mainly composed of a valve housing 212 that accommodates the body 211 so as to be movable in the horizontal direction and has a peripheral side portion 213 with an open tip.
- the valve housing 212 includes a shaft member 14 extending in the horizontal direction in a state in which the valve housing 212 is pivotally supported so as to be rotatable and unable to move forward and backward. By rotating the operation portion of the end portion of the shaft member 14 protruding outward from the body 212, the plug body 211 is configured to be movable with respect to the valve housing 212 in the axial direction of the shaft member 14.
- the first sealing member 21 extends inward (toward the fluid pipe 1 side) from the opening 205b and comes into close contact with the inner peripheral surface 205j of the neck 205d. Further, the second sealing member 22 is pressed to an installation position close to the inner peripheral surface 205h on the outer side of the opening 205b.
- the flow control valve 210 is restricted from coming out outward from the housing 205. Will be done.
- a tubular body 188 for movably fitting the cutter 172 is provided so as to be movable in the horizontal direction with respect to the mounting flange cylinder 171 and is recessed. It is inserted into the neck portion 105d up to a position covering the opening of the portion 105i. That is, the tubular body 188 constitutes the tubular portion of the present invention.
- the tubular body 188 is formed in a bottomed cylindrical shape having an outer peripheral surface having a diameter slightly smaller than the inner peripheral surfaces 105h and 105j of the neck portion 105d, and the tubular body 188 is the inner circumference on the base end side thereof.
- the projecting portion 181 and the rubber member 182 as engaging portions projecting from the surface to the inner diameter side are engaged with the outer peripheral surface of the cutter 172 so as to be connectable or disengaged.
- a rubber member 182 that can be elastically deformed is provided at the tip of the protrusion 181 on the inner diameter side, and the rubber member 182 is sandwiched between the outer peripheral surface of the cutter 172 to form a tubular body 188. Is connected to the cutter 172. Therefore, when the cutter 172 advances in the horizontal direction by the advance / retreat mechanism 173, the tubular body 188 follows the cutter 172 and advances toward the fluid tube 101.
- the axial tip surface of the tubular body 188 that has traveled following the cutter 172 comes into contact with the stepped portion 105k formed in the neck portion 105d of the housing 105. , The insertion of the tubular body 188 is completed.
- a recess is formed on the outer peripheral surface of the cutter 172 instead of the rubber member 182 provided at the tip of the protrusion 181, and the convex portion at the tip on the inner diameter side of the protrusion 181 is unevenly fitted.
- a ball plunger may be provided at the tip of the protrusion 181 on the inner diameter side, and the outer peripheral surface of the cutter 172 may be pressed and engaged.
- the cutter 172 and the tubular body 188 can be easily connected or disconnected only by moving the cutter 172.
- a tubular body 178 for movably fitting the cutter 172 is provided so as to be movable in the horizontal direction with respect to the mounting flange cylinder 171.
- the shape body 178 is fixed to the base end side thereof and is a position where the opening of the recessed portion 105i is covered by pushing and pulling the operation portion 179 extending outward of the mounting flange cylinder 171 in a sealed state. It is designed to be inserted into the neck 105d. That is, the tubular body 178 constitutes the tubular portion of the present invention.
- the tubular body 178 is provided with a sweep-out portion 190 composed of a large number of hair-like members 191, 191, ... That are raised from the outer peripheral surface on the tip end side toward the outer diameter side over the entire circumference.
- the sweep-out portion 190 is configured to enter the inside of the recessed portion 105i or advance from the inside of the recessed portion 105i as the tubular body 178 moves back and forth. Further, the sweep-out portion 190 may be on the entire outer peripheral surface of the tubular body 178, or may be partially provided.
- the hair-like member 191 constituting the sweep-out portion 190 is made of a material such as metal, resin, or fiber, and contaminants such as chips in the recessed portion 105i can be removed like a broom or a brush. It has a function to sweep out to the outside.
- the axial tip surface of the tubular body 178 inserted into the neck 105d by the operating portion 179 comes into contact with the step 105k formed in the neck 105d of the housing 105.
- the insertion of the tubular body 178 is completed.
- the sweep-out portion 190 is in a state of being inserted into the recessed portion 105i. By doing so, it is possible to prevent foreign matter such as chips from entering the recessed portion 105i.
- the fluid pipe 101 is cut by the cutter 172, the cutter 172 is pulled into the mounting flange cylinder 171 together with the section, and the tubular body 178 is also pulled into the mounting flange cylinder 171. It operates to sweep from the inside to the outside. By doing so, even if foreign matter such as chips enters the recessed portion 105i, the foreign matter can be discharged to the outside of the recessed portion 105i.
- a cutter 372 is provided inside the mounting flange cylinder 171 so as to be movable in the horizontal direction with respect to the mounting flange cylinder 171.
- the cutter 372 is formed in a bottomed tubular shape having a diameter smaller than that of the fluid tube 101, and has a hole saw 372a having a cutting blade at its tip along the circumferential direction and a hole saw 372a arranged coaxially with the rotation axis of the hole saw 372a for cutting. It is composed of a center drill 372b that protrudes toward the tip of the blade.
- the hole saw 372a is fitted into the neck portion 105d to a position covering the opening of the recessed portion 105i by operating the advancing / retreating mechanism 173 connected to the base end side thereof. That is, the hole saw 372a constitutes a part of the cutter 372 of the present invention and also constitutes the tubular portion of the present invention. By doing so, the configuration of the tubular portion can be simplified by using the hole saw 372a which is a part of the cutter 372.
- the hole saw 372a is provided with a sweep-out portion 390 composed of a large number of hair-like members 391, 391, ... Raised from the outer peripheral surface of the base end portion toward the outer diameter side over the entire circumference.
- the sweep-out portion 390 is configured to enter the inside of the recessed portion 105i or advance from the inside of the recessed portion 105i as the hole saw 372a moves back and forth. Further, the sweep-out portion 390 may be provided on the entire outer peripheral surface of the hole saw 372a, or may be partially provided.
- the hair-like member 391 constituting the sweep-out portion 390 is made of a material such as metal, resin, or fiber, and contaminants such as chips in the recessed portion 105i can be removed like a broom or a brush. It has a function to sweep out to the outside.
- the sweep-out portion 390 is recessed at a position where the cutting blade at the axial tip of the hole saw 372a inserted into the neck portion 105d by the advancing / retreating mechanism 173 is in contact with the outer surface of the fluid pipe 101 and is perforated. It is in a state of being inserted into the portion 105i. By doing so, it is possible to prevent foreign matter such as chips from entering the recessed portion 105i.
- the sweep-out portion 390 inserted in the recessed portion 105i rotates in the circumferential direction to increase the fluidity in the recessed portion 105i and cut. Foreign matter such as powder can prevent entry.
- the sweeping portion 390 operates so as to sweep outward from the inside of the recessed portion 105i. By doing so, even if foreign matter such as chips enters the recessed portion 105i, the foreign matter can be discharged to the outside of the recessed portion 105i.
- FIGS. 29 and 30 As shown in FIGS. 29 and 30, inside the neck portion 105d of the housing 105, a suction pipe made of a rod-shaped body having a small diameter for discharging chips is provided through a through hole 105m formed in the housing 105.
- the 280 is inserted in a substantially horizontal direction in a sealed state, and the suction pipe 280 is arranged at a position that covers the opening of the recessed portion 105i below in the vertical direction from above. That is, the suction tube 280 constitutes the tubular portion of the present invention.
- the suction pipe 280 has an inner space structure in which the tip opening 281a arranged inside the neck 105d and the rear end opening 281b arranged outside communicate with each other, and is arranged outside the housing 105.
- the valve 282 makes it possible to open and close both openings 281a and 281b of the suction pipe 280, that is, a communication passage communicating the inside and outside of the neck 105d.
- the suction pipe 280 inserted into the neck portion 105d covers the opening of the recessed portion 105i from above. By doing so, it is possible to prevent foreign matter such as chips from entering the recessed portion 105i.
- the valve 282 of the suction pipe 280 is opened. Then, the chips are sucked from the front end opening 281a of the suction pipe 280 together with the fluid in the neck portion 105d, and discharged from the rear end opening 281b to the outside of the housing 105.
- the suction pipe 280 that communicates with the inside and outside of the housing 105. Further, in the open state of the valve 282, the suction pipe 280 in the neck portion 105d is appropriately moved back and forth along the recessed portion 105i, so that the efficiency of sucking chips can be improved.
- the number of suction tubes 280 is not limited to one, and a predetermined number may be provided. Further, the suction pipe 280 may be removed, for example, during cutting of the fluid pipe 101, and attached to the valve 282 after the cutting is completed so that foreign matter such as chips is discharged to the outside.
- the present invention is not limited to this, and when the work valve body 131 is closed in a sealed manner when removing the drilling machine 107, the valve 282 and the rear end opening are opened. Foreign matter such as chips may be pushed out by the working valve body 131 while opening the valve of 281b.
- the valve 282 can be removed after the check valve 110 is attached.
- the pipe drilling device and its installation method according to the modified example 5 will be described with reference to FIG. 31.
- the recessed portion 105p formed inside the neck portion 105d of the housing 105 has a tapered surface 105t whose inner surface on the fluid pipe 101 side is gradually opened from the inner bottom surface toward the opening. It is formed.
- the fluidity of the fluid in the recessed portion 105i can be increased, so that the chips that have entered or are about to enter the recessed portion 105p together with the fluid when the fluid pipe 101 is cut are removed. It can flow out of the recessed portion 105p along the tapered surface 105t without staying. Further, the taper direction may be gradually opened from the opening toward the inner bottom surface to prevent the ingress of chips.
- the housing 105', the mounting flange cylinder 171' connected to the housing 105', and the advancing / retreating mechanism (not shown) are inclined so that the outer end side thereof faces diagonally upward from the horizontal direction. It is attached to the fluid pipe 101. That is, the inner surface of the recessed portion 105i'formed inside the housing 105'is formed so as to be inclined with respect to the vertical direction.
- the fluidity of the fluid in the recessed portion 105i' can be increased, so that the chips that have entered or are about to enter the recessed portion 105i' together with the fluid when the fluid pipe 101 is cut.
- the powder can be discharged to the outside of the recessed portion 105i'along the inner surface of the inclined recessed portion 105i'without retaining the powder.
- the housing 105 provided with the recessed portion 105p according to the above-mentioned modification 5 is attached to the fluid pipe 101 by inclining it so as to face diagonally upward as in the modification 6.
- the tapered surface 105t constituting the recessed portion 105p is inclined with respect to the vertical direction, that is, inclined so as to approach the horizontal direction, so that the fluidity of the fluid in the recessed portion 105p is further increased. It can be raised, and all the chips that are about to enter the recessed portion 105p can be discharged.
- the work valve 103 ′ constituting the pipe drilling device according to the present invention is hermetically connected to the opening 105b of the neck portion 105d of the housing 105.
- the work valve 103' has a work valve body 131'that slides in the housing 105 so as to be openable and closable, an accommodation internal 132a' that extends substantially vertically downward and accommodates the work valve body 131'slablely, and the upper end thereof.
- the accommodating member 132' is pivotally supported so as to be rotatable and immovable, and includes a shaft member 134'extended vertically downward, and a working valve body 131'is screwed onto the shaft member 134'.
- the working valve body 131' is slidable with respect to the accommodating member 132'.
- the accommodating member 132' without causing chips entering the recessed portion 105i to stay in the recessed portion 105i. It can be introduced by lowering it to 132a'inside the containment. It is preferable to provide an outlet (not shown) at the lower end of the accommodating member 132'so that it can be opened and closed. By doing so, the chips introduced inside the accommodating member 132'can be appropriately discharged to the outside. it can.
- the flow control valve 10 includes, as its valve body, a plug 11 that passes through the hole 1b of the fluid pipe 1 and is in close contact with the inner peripheral surface 1c.
- a plug 11 that passes through the hole 1b of the fluid pipe 1 and is in close contact with the inner peripheral surface 1c.
- Any form of valve body can be applied as long as the fluid in the pipe can be controlled.
- a hole saw 72a having a diameter smaller than that of the fluid pipe 1 was used for drilling
- a hole saw 72a having a diameter smaller than that of the fluid pipe 1 was used for drilling.
- a part of the fluid pipe inside the housing 5 is cut with a hole saw, a bite device, a wire saw device, etc. having a diameter larger than that of the pipe 1, or a part of the pipe line of the fluid pipe is cut and the section thereof is removed.
- a plug that seals the inner peripheral surface of the housing as a valve seat and a flow control valve having an inner valve box with a built-in valve body may be installed in a continuous flow state.
- the pipe punching device may be any device that generates chips from the pipe wall of the fluid pipe by the punching machine, and the drilling device of the present invention is limited to simply forming a hole in the fluid pipe. However, it includes aspects such as cutting or cutting.
- the open ends 5c, 105c, and 205c of the housing are branched and opened in the horizontal direction, but when they are branched in the vertical direction and drilled in the vertical direction, or when they are inclined at an angle. It can also be applied when drilling from the direction.
- protrusions 75d, 178d, and 271d are provided at the tips of the inner wall portion 75a, the tubular body 178, and the mounting flange cylinder 271 for collecting chips, but a plurality of protrusions are provided.
- the shape is not limited to this, and for example, it may have a grid-like inner peripheral surface, may have a plurality of protrusions, or may be coated with a viscous material.
- tubular bodies 178 and 188 are not necessarily limited to those formed in a cylindrical shape, and may be formed in a semi-cylindrical shape or a substantially C shape.
- the working valves 3, 103 and 203 are attached so as to extend in the pipeline direction of the fluid pipes 1, 101 and 201, but they are installed in the direction perpendicular to the pipeline direction and in the circumferential direction. It may be mounted in an appropriate angle direction, and may be mounted not only parallel to the pipeline but also at an angle such that the operation portion side of the outer end of the working valve gradually approaches or moves away. Needless to say, the openings 5b, 105b, 205b and the recessed portions 5i, 105i, 205i in this case are also appropriately designed in the above directions.
- chips may stay in a plurality of through holes through which a plurality of push bolts 105f can be inserted, particularly on the lower side, and an elastic material such as rubber or sponge or tape is used before drilling. It is advisable to close the through hole from the inner peripheral side of the neck with a material such as plastic or metal, or to clean the through hole after drilling.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Drilling And Boring (AREA)
Abstract
Description
流体管を密封状に外嵌する分割構造の筐体と、前記筐体の首部内に設けられた凹状弁座部に接離する作業弁体を備えた作業弁と、前記筐体内に挿入され前記流体管を不断流状態で穿孔するカッタを備えた穿孔機と、を少なくとも有する管穿孔装置であって、
前記首部内の前記凹状弁座部の開口を開閉可能に移動する筒状部を備えることを特徴としている。
この特徴によれば、筐体の首部内の凹状弁座部の開口を筒状部により閉塞することで、筐体内の流体管の穿孔により生じる切り粉が凹状弁座部内に進入することを防止できるため、この筒状部を開放した清浄な凹状弁座部に作業弁体を接触させることができ、筐体を密封することができる。
この特徴によれば、筒状部を首部の内面に沿ってスライドさせることで、この筒状部の移動の精度を向上させ、凹状弁座部を確実に開閉できる。
この特徴によれば、筒状部の外周部と首部の内面との隙間を密封材によりシールすることで、不断流状態での穿孔を行うことができる。
この特徴によれば、筒状部の内周部に滞留した切り粉を落下させることなく、突出部によって滞留させることができる。
この特徴によれば、首部に収容筒を着脱すると同時に、その先端の筒状部によって凹状弁座部の開口を開閉することができる。
この特徴によれば、穿孔の際に発生する切り粉が凹状弁座部に近づくことなく、この凹状弁座部よりも上流である基端部側に形成された排出口を介し切り粉を外部に排出することができる。
この特徴によれば、筒状部内に進入した切り粉を、連通口及び排出口を介して滞りなく外部に排出することができる。
この特徴によれば、カッタを移動させるだけで、このカッタと筒状部とを容易に連結若しくは解除することができる。
この特徴によれば、凹状弁座部の内部に切り粉等の異物が進入しても、当該異物を凹状弁座部外に排出することができる。
この特徴によれば、カッタの一部であるホールソーを利用することで、筒状部の構成を簡略化することができる。
この特徴によれば、筐体の内外に通じる吸引管により、筐体内の切り粉等の異物を外部に排出することができる。
この特徴によれば、凹状弁座部内の流体の流動性を高めることができるため、凹状弁座部内の切り粉を滞留させることなく、テーパ面に沿って凹状弁座部の外部に流出させることができる。
この特徴によれば、凹状弁座部内の流体の流動性を高めることができるため、凹状弁座部内の切り粉を滞留させることなく、傾斜した内側面に沿って凹状弁座部の外部に流出させることができる。
この特徴によれば、切り粉を凹状弁座部内に滞留させることなく作業弁筐体の内部に降下させて導入することができる。
このホールソー372aは、その基端側に接続された進退機構173を操作することで、凹設部105iの開口を被覆する位置まで首部105d内に挿嵌されるようになっている。すなわちホールソー372aは、本発明のカッタ372の一部を構成するとともに、本発明の筒状部を構成している。このようにすることで、カッタ372の一部であるホールソー372aを利用することで、筒状部の構成を簡略化することができる。
3 作業弁
5 筐体
5d 首部
5i 凹設部(凹状弁座部)
5p 雌ネジ孔(排出口)
7 穿孔機
10 制流弁
31 作業弁体
71 取付フランジ筒(収容筒)
72 カッタ
75a 内壁部(筒状部)
75d 突出部
75p 連通口
76b シール部材(密封材)
101 流体管
103 作業弁
105,105’ 筐体
105d 首部
105i,105i’ 凹設部(凹状弁座部)
105p 凹設部(凹状弁座部)
105t テーパ面
107 穿孔機
110 制流弁
117 連通開口部(排出口)
131,131’ 作業弁体
132,132’ 収容部材
172 カッタ
178 筒状体(筒状部)
178d 突出部
181 突出部(係合部)
182 ゴム部材(係合部)
188 筒状体(筒状部)
190 掃き出し部
201 流体管
203 作業弁
205 筐体
205d 首部
205i 凹設部(凹状弁座部)
205p 雌ネジ孔(排出口)
207 穿孔機
210 制流弁
231 作業弁体
271 取付フランジ筒(筒状部)
271d 突出部
272 エンドミル(カッタ)
276 シール部材(密封材)
280 吸引管(筒状部)
372 カッタ
372a ホールソー(筒状部)
390 掃き出し部
Claims (14)
- 流体管を密封状に外嵌する分割構造の筐体と、前記筐体の首部内に設けられた凹状弁座部に接離する作業弁体を備えた作業弁と、前記筐体内に挿入され前記流体管を不断流状態で穿孔するカッタを備えた穿孔機と、を少なくとも有する管穿孔装置であって、
前記首部内の前記凹状弁座部の開口を開閉可能に移動する筒状部を備えることを特徴とする管穿孔装置。 - 前記筒状部は、前記首部の内面に沿ってスライド可能に配置されていることを特徴とする請求項1に記載の管穿孔装置。
- 前記凹状弁座部よりも前記流体管側とは反対側の前記筒状部の外周部に、前記首部の内面との間をシールする密封材が設けられていることを特徴とする請求項1または2に記載の管穿孔装置。
- 前記筒状部の開口端近傍の内周部に、内径方向に突出した突出部が形成されていることを特徴とする請求項1ないし3のいずれかに記載の管穿孔装置。
- 前記穿孔機は、前記カッタを収容するとともに前記筐体の前記首部に着脱される収容筒を有し、該収容筒の先端部が前記筒状部であることを特徴とする請求項1ないし4のいずれかに記載の管穿孔装置。
- 前記筒状部よりも前記流体管側の前記首部に、前記筐体内の流体とともに切り粉を排出する排出口が形成されていることを特徴とする請求項1ないし5のいずれかに記載の管穿孔装置。
- 前記筒状部に、前記筐体内の流体とともに切り粉を排出する排出口に連通する連通口が形成されていることを特徴とする請求項1ないし6のいずれかに記載の管穿孔装置。
- 前記筒状部に、前記カッタとの連結若しくは解除を可能とする係合部が設けられていることを特徴とする請求項1ないし7のいずれかに記載の管穿孔装置。
- 前記筒状部に、該筒状部の移動に伴い前記凹状弁座部内に出入する掃き出し部が設けられていることを特徴とする請求項1ないし8のいずれかに記載の管穿孔装置。
- 前記筒状部は、前記カッタを構成するホールソーであることを特徴とする請求項9に記載の管穿孔装置。
- 前記筒状部は、前記筐体の前記首部の内外を開閉可能に連通する吸引管であることを特徴とする請求項1ないし9のいずれかに記載の管穿孔装置。
- 前記凹状弁座部を構成する内側面は、該凹状弁座部の開口に向けて開放されたテーパ状に形成されていることを特徴とする請求項1ないし11のいずれかに記載の管穿孔装置。
- 前記凹状弁座部を構成する内側面は、鉛直方向に対し傾斜して形成されていることを特徴とする請求項1ないし12のいずれかに記載の管穿孔装置。
- 前記作業弁は、前記作業弁体を収容可能に略鉛直下方に向けて延設された作業弁筐体を備えることを特徴とする請求項1ないし13のいずれかに記載の管穿孔装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3155824A CA3155824A1 (en) | 2019-10-11 | 2020-10-05 | CONDUIT DRILLING DEVICE |
US17/312,891 US11708927B2 (en) | 2019-10-11 | 2020-10-05 | Pipe drilling device |
EP20873820.3A EP4043128A4 (en) | 2019-10-11 | 2020-10-05 | CONDUIT DRILLING DEVICE |
JP2021551638A JP7313461B2 (ja) | 2019-10-11 | 2020-10-05 | 管穿孔装置 |
JP2023112765A JP2023119017A (ja) | 2019-10-11 | 2023-07-10 | 管穿孔装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019187832 | 2019-10-11 | ||
JP2019-187832 | 2019-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021070773A1 true WO2021070773A1 (ja) | 2021-04-15 |
Family
ID=75436807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2020/037707 WO2021070773A1 (ja) | 2019-10-11 | 2020-10-05 | 管穿孔装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11708927B2 (ja) |
EP (1) | EP4043128A4 (ja) |
JP (2) | JP7313461B2 (ja) |
CA (1) | CA3155824A1 (ja) |
WO (1) | WO2021070773A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5147992U (ja) * | 1974-10-09 | 1976-04-09 | ||
US4431017A (en) * | 1980-06-30 | 1984-02-14 | James Hardie & Coy Pty. Limited | Pipe tapping method and apparatus |
JPS6053411U (ja) * | 1983-09-17 | 1985-04-15 | コスモ工機株式会社 | 不断水穿孔工事に使用される切屑排出補助装置 |
JPH03272388A (ja) * | 1990-03-19 | 1991-12-04 | Tokyo Gas Co Ltd | 活管分岐工法におけるブロー工法 |
JPH0938813A (ja) * | 1995-08-01 | 1997-02-10 | Cosmo Koki Co Ltd | 流体管の穿孔装置 |
JP2000028058A (ja) | 1998-07-13 | 2000-01-25 | Cosmo Koki Co Ltd | 管接続装置 |
DE10021592A1 (de) * | 2000-05-04 | 2001-11-15 | Manibs Spezialarmaturen | Ventilanbohrarmatur für ein insbesondere unter Mediendruck stehendes Rohr |
JP2013059822A (ja) * | 2011-09-12 | 2013-04-04 | Cosmo Koki Co Ltd | 切粉排出方法及びその装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5147992A (ja) | 1974-10-24 | 1976-04-24 | Denki Kagaku Kogyo Kk | Enkabinirukeijugotaiyoekino seizoho |
JPS6053411A (ja) | 1983-09-02 | 1985-03-27 | Mazda Motor Corp | 自動車のリヤサスペンション |
GB9203452D0 (en) * | 1992-02-18 | 1992-04-01 | Periquip Services | Pipe treating method and apparatus |
US5269340A (en) * | 1992-10-15 | 1993-12-14 | Institute Of Gas Technology | Combined hot tap pipe cutter and gate valve for plastic pipe |
US5560388A (en) * | 1994-07-18 | 1996-10-01 | Caldwell; Thomas M. | Seal plug for lined pipelines |
US5893686A (en) * | 1997-08-27 | 1999-04-13 | Weiler; Donald R. | Pipe tapping drill attachment |
US6615859B2 (en) * | 2000-07-21 | 2003-09-09 | Suiken Co., Ltd. | Fluid supply interruption free method of construction |
US6640827B1 (en) * | 2001-10-08 | 2003-11-04 | Mcclure Mark A. | Hot tapping tool |
US7552742B2 (en) * | 2007-06-14 | 2009-06-30 | Victaulic Company | Hot tap device |
US8695626B2 (en) * | 2010-12-23 | 2014-04-15 | Advanced Valve Technologies, Inc. | Systems and methods for valve insertion and linestopping |
US8899254B1 (en) * | 2012-06-19 | 2014-12-02 | Yamsmos & Company, Inc. | Valve removal tool and method |
US9719621B2 (en) * | 2013-03-21 | 2017-08-01 | Yone Corporation | Snap tap forming method and snap tap attaching tool used in the method |
US10473560B2 (en) * | 2017-12-08 | 2019-11-12 | Hydra-Stop Llc | Pipe core sampling and tapping apparatus |
-
2020
- 2020-10-05 WO PCT/JP2020/037707 patent/WO2021070773A1/ja unknown
- 2020-10-05 JP JP2021551638A patent/JP7313461B2/ja active Active
- 2020-10-05 EP EP20873820.3A patent/EP4043128A4/en active Pending
- 2020-10-05 CA CA3155824A patent/CA3155824A1/en active Pending
- 2020-10-05 US US17/312,891 patent/US11708927B2/en active Active
-
2023
- 2023-07-10 JP JP2023112765A patent/JP2023119017A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5147992U (ja) * | 1974-10-09 | 1976-04-09 | ||
US4431017A (en) * | 1980-06-30 | 1984-02-14 | James Hardie & Coy Pty. Limited | Pipe tapping method and apparatus |
JPS6053411U (ja) * | 1983-09-17 | 1985-04-15 | コスモ工機株式会社 | 不断水穿孔工事に使用される切屑排出補助装置 |
JPH03272388A (ja) * | 1990-03-19 | 1991-12-04 | Tokyo Gas Co Ltd | 活管分岐工法におけるブロー工法 |
JPH0938813A (ja) * | 1995-08-01 | 1997-02-10 | Cosmo Koki Co Ltd | 流体管の穿孔装置 |
JP2000028058A (ja) | 1998-07-13 | 2000-01-25 | Cosmo Koki Co Ltd | 管接続装置 |
DE10021592A1 (de) * | 2000-05-04 | 2001-11-15 | Manibs Spezialarmaturen | Ventilanbohrarmatur für ein insbesondere unter Mediendruck stehendes Rohr |
JP2013059822A (ja) * | 2011-09-12 | 2013-04-04 | Cosmo Koki Co Ltd | 切粉排出方法及びその装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2021070773A1 (ja) | 2021-04-15 |
JP2023119017A (ja) | 2023-08-25 |
US11708927B2 (en) | 2023-07-25 |
EP4043128A1 (en) | 2022-08-17 |
JP7313461B2 (ja) | 2023-07-24 |
EP4043128A4 (en) | 2023-10-18 |
US20220268387A1 (en) | 2022-08-25 |
CA3155824A1 (en) | 2021-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2466177B1 (en) | Sluice valve for operations | |
CN111279111B (zh) | 流体管路构造的阀撤去方法和流体管路构造及阀装置 | |
WO2020049879A1 (ja) | 流体制御装置の設置方法及び設置装置 | |
WO2021070773A1 (ja) | 管穿孔装置 | |
JP2023164928A (ja) | 流体制御装置 | |
US11519545B2 (en) | Installment method of fluid control body, and fluid control device including fluid control body | |
RU2680002C1 (ru) | Устройство для выполнения отверстия в трубопроводе, находящемся под давлением | |
JP2022101263A (ja) | 作業弁を用いた分岐管の接続方法及びそれに用いられる作業弁 | |
JP4944735B2 (ja) | 管継手 | |
JP3953269B2 (ja) | プラグ装着治具 | |
CA3115181C (en) | Fluid control device | |
JP4086831B2 (ja) | 既設管の弁設置工法 | |
JP2013199984A (ja) | 流体管分岐装置 | |
JP6505141B2 (ja) | 不断流式の流路閉塞装置 | |
JP2019184030A (ja) | 流体管への孔部形成方法及び孔部形成方法に用いられる分岐路形成装置 | |
AU2003203504A1 (en) | A Pipeline system and tool therefor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20873820 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021551638 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 3155824 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2020873820 Country of ref document: EP Effective date: 20220511 |