JP2004244977A - Temporary fixing blocking implement for blocking open end face of pipe body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily block the open end face 18 of a buried pipe body in a water feed and drain pipeline formed to facilitate repair and replacement by allowing the insertion and detachment of a water feed and drain pipe piped in a foundation 13. <P>SOLUTION: This temporary fixing blocking implement blocks the elliptic open end face 18 of the blocked pipe body 17 with one end face formed at an angle larger than 0° and smaller than 90° to an axis. A temporary fixing blocking implement body 21 for blocking the open end face 18 of the blocked pipe body 17 has a fitting cylinder part 23 fitted to the inner periphery of the blocked pipe body 17 from the open end face 18. The fitting cylinder part 23 is blocked at one end face and opened at the other end face. An elliptic engaging step part 24 abutting on the open end face 18 of the blocked pipe body 17 is formed at the outer peripheral surface of the fitting cylinder part 23. A guide protruding part 25 coming in pressure contact with the inner peripheral surface of the blocked pipe body 17 is formed at the outer peripheral surface of the fitting cylinder part 23. A hand hold part 26 is provided at the outer periphery of the fitting cylinder part 23 on one end side rather than the engaging step part 24. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention, for example, when forming a drainage channel connecting a drainage system in a building to a drainage channel outside the building from the upper surface of the foundation under the floor of the building to the outer surface, for inserting a drainage pipe The present invention relates to a temporary closure device for closing an open end surface of a tubular body so that a foundation concrete liquid does not flow from the open end surface of the tubular body called a sheath tube.
[0002]
[Prior art]
Conventionally, when drain pipes are pierced through the foundation of a building, when constructing the foundation of a building, a paper void pipe is fixed to the place where the drain pipe of the form penetrates and concrete is struck. Had been set up.
[0003]
Next, after forming the foundation of the building, the void pipe was pulled out, and then the drain pipe was inserted into the through hole of the foundation formed by the void pipe, and the mortar was inserted into the gap between the drain pipe and the through hole. A drainage basin (not shown) with an upstream drainage pipe connected upstream of the drainage pipe so that each drainage facility of the building can communicate with the drainage pipe, and the downstream end of the drainage pipe buried below the ground surface. A method of connecting to a downstream drain pipe was adopted.
[0004]
In the method of filling the gap between the through hole of this foundation and the drainage pipe with mortar, etc., for example, in the case of repairing and replacing the drainage pipe at the time of reforming, the foundation must be destroyed, In the method of forming a through hole through a drain pipe with a void pipe as a foundation, there is a problem that it is not easy to remove and remove the void pipe, and scraps of the void pipe are generated.
[0005]
On the other hand, recently, with the enforcement of the Housing Quality Assurance Promotion Law, a housing evaluation system has been established, and the maintenance and management performance of water supply and drainage pipes has also been evaluated. In order to improve the evaluation result, it is demanded that the water supply / drainage pipe can be pulled out without breaking the foundation, and the water supply / drainage pipe can be easily repaired or replaced.
[0006]
Therefore, one end face is opened on the upper surface of the solid foundation or the moisture-proof concrete, and the other end face is buried in the foundation on the outer surface of the cloth foundation and opened in the ground. 2. Description of the Related Art There are known drainage devices capable of being inserted and removed freely (for example, see Patent Documents 1 and 2).
[0007]
[Patent Document 1]
JP-A-2002-54203 (page 2 to page 3 FIG. 1)
[0008]
[Patent Document 2]
JP-A-2002-115294 (pages 4 to 6, FIGS. 1 to 3)
[0009]
[Problems to be solved by the invention]
However, in the drainage devices described in Patent Literatures 1 and 2, the pipe penetrating the foundation of the building is fixed to a reinforcing steel bar or the like of the foundation before the foundation of the building is constructed. When casting moisture-proof concrete into the frame, it is necessary to close the open end face of the pipe so that liquid concrete does not enter the pipe. In particular, due to the height limitation between the solid foundation of the building or the upper surface of the moisture-resistant concrete surface and the floor surface, it is desirable that the end of the tube opening on the upper surface of the foundation be as close as possible to the upper surface of the foundation. However, when the open end face of the pipe is close to the upper surface of the foundation, liquid concrete easily enters from the open end face of the pipe.
[0010]
In order to close the open end face of this tube, it is necessary to insert a rag or to close the open end face with a piece of gum tape, and it is troublesome to securely close the open end face of the tube. there were.
[0011]
The present invention has been made in view of such a point, and for example, a plumbing system in which a plumbing pipe buried in a foundation or the like can be easily inserted into and removed from the plumbing pipe so that the plumbing can be easily repaired and replaced. It is an object of the present invention to provide a temporary stopper for closing an open end face of a pipe body which can easily close an open end face of a pipe body embedded in a foundation or the like in a pipe line.
[0012]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a temporary closing closure for closing an open end face of a tubular body, wherein an oval open end face of a closed tubular body whose one end face is at an angle larger than 0 ° and smaller than 90 ° with respect to an axis. A temporary fastening closure device for closing, wherein a temporary fastening closure body for closing an open end face of the closed pipe body has a fitting cylindrical portion fitted from the open end face to an inner periphery of the closed pipe body. The fitting tube portion has at least one end surface closed, and an elliptical engagement step portion is formed on the outer periphery of the fitting tube portion to be in contact with the opening end surface of the closed tube. .
[0013]
Then, for example, when plumbing a water supply / drainage pipe to the foundation of a building, one end of a closed pipe, for example, a closed pipe called a sheath pipe, is placed on the upper surface of the foundation so that the water supply / drainage pipe can be inserted into and removed from the foundation. When pouring the foundation concrete in the open state, the liquid concrete intrudes into the closed pipe body by fitting the fitting cylinder of the temporary fixing closure body to the open end face of one end of the closed pipe body. Can be prevented, and the construction work efficiency of the foundation of the building is improved.
[0014]
Further, even if the concrete shrinks during the hardening of the foundation concrete, the deformation of the open end face of the closed pipe can be prevented by the temporary fixing closure main body fitted to the open end face of the closed pipe.
[0015]
In addition, since the engaging step formed in the fitting tubular portion of the temporary fixing closure main body is formed in an elliptical shape in contact with the opening end face of the closed pipe body, the opening end face of the closed pipe body is formed. By fitting the fitting tube into the closed pipe until the engagement step comes into contact with the closed step, the oval opening end face of the closed pipe can be reliably closed, and cast concrete, dust, insects, etc. Intrusion into the occluded pipe can be reliably prevented.
[0016]
The closed pipe body is inclined and buried in the foundation, and an open end face at one end is cut at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the closed pipe body to form an elliptical open end face. This opening end face can be prevented from being deformed by the temporary fixing closure body even if the inclined side of the closed pipe body is easily expanded.
[0017]
Furthermore, since the open end face of one end of the closed pipe body has an elliptical shape, the open end face of the upper surface can be a horizontal plane even if the closed pipe body is installed in an inclined manner such that one end side is on the upper side. When installed on the foundation of a building, the projecting dimension of the occluded pipe from the foundation can be reduced.
[0018]
Also, when plumbing the drainage pipe to the foundation, the fitting pipe part of the temporary fixing obturator body is pulled out of the closed pipe body and the end face is opened, so that the flexible water supply / drainage pipe is connected to the closed pipe body. The water supply / drainage pipe can be connected to one side of the water supply / drainage facility of the building, and the other side of the water supply / drainage pipe can be connected to the pipe of the water supply / drainage system at a position outside the building.
[0019]
In addition, when repairing or replacing the water supply / drainage pipe of a building, one side or the other side of the water supply / drainage pipe inserted through the closed pipe is exposed from the closed pipe, thereby cutting the closed pipe. The flexible pipe of the inserted water supply / drainage pipe can be pulled out, and the repair of the water supply / drainage pipe system of the building can be easily performed.
[0020]
According to a second aspect of the present invention, there is provided a temporary fixing closing device for closing an open end surface of a tubular body, wherein the temporary closing closing device for closing an open end surface of the tubular body according to the first aspect is an inner peripheral portion from an open end surface of a closed tubular body. A guide projection is formed on the outer peripheral surface of the fitting cylindrical portion of the temporary fixing closure main body to be fitted to the inner peripheral surface of the closed pipe body.
[0021]
The occluded pipe body is inclined, for example, buried in the foundation, and the open end face at one end is formed at an angle greater than 0 ° and smaller than 90 ° with respect to the axis of the occluded pipe body, thereby forming an elliptical open end face. The opening end face is easy to expand on the inclined side of the closed pipe body, and even if some deformation occurs, the guide projection formed on the fitting tubular portion of the temporary fixing closure body is formed by the guide projection of the closed pipe body. The temporary stop closure body is pressed against the inner peripheral surface to prevent the temporary stop closure body from slipping out and coming off, and the deformation of the open end face of the closed pipe body is restored to its original shape.
[0022]
Furthermore, even if there is a dimensional error in the inner diameter of the closed pipe body, the guide projection formed on the fitting tubular portion of the temporarily closed closure body is pressed against the inner peripheral surface of the closed pipe body so that the temporarily closed closure body is formed. Does not come off.
[0023]
According to a third aspect of the present invention, there is provided a temporary fixing closing device for closing an open end surface of a tubular body, wherein the temporary fixing closing device for closing an open end surface of the tubular body according to the first or second aspect is a fitting of a temporary fixing closing device main body. A handle portion is provided on the outer periphery at one end side of the engagement step portion of the cylindrical portion.
[0024]
Then, the temporary fixing closure device can be easily pulled out of the closed pipe body by the handle portion.
[0025]
According to a fourth aspect of the present invention, there is provided a temporary closing closure for closing an open end surface of a tubular body according to any one of the first to third aspects. The closed pipe body has one end opened to the upper surface of the foundation of the building and the other end opened to the outer surface of the foundation and buried in the foundation, and the open end surface opened to the upper surface of the foundation, A flexible tube having an upstream side connected to a building water supply / drainage facility and a downstream side connected to a water supply / drainage passage is removably inserted into the other end opened to the outer side surface.
[0026]
When the water supply / drainage pipe is constructed on the foundation of the building, the fitting tubular portion of the temporary fixing closure is pulled out of the closed pipe and the opening end face is opened, so that the closed pipe has flexibility. Insert the plumbing pipe, connect one side of this plumbing pipe to the plumbing equipment of the building, and connect the other side of the plumbing pipe to plumbing of the plumbing system at an external position of the building, and penetrate the foundation of the building Piping of the plumbing system becomes easier.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a description will be given of a configuration in which an embodiment of a temporary fixing closure device for closing an opening end of a pipe body of the present invention is applied to a drainage channel device, with reference to FIGS. 1 to 3.
[0028]
In FIG. 1, a drainage device 11 includes a drainage port of a drainage facility such as a wash basin, a bathroom, or a toilet (not shown) in a house and a drainage channel (not shown) buried in the site of the building. Connect with a sewage basin. A foundation 13 of a building constructed by casting concrete is a so-called solid foundation 15 which is a substantially horizontal plane and which stands from a so-called solid foundation 14 and a foundation slab of the solid foundation 14 and serves as a foundation of a pillar of the building. Are formed.
[0029]
The drainage channel device 11 includes a closed pipe body, for example, a cylindrical sleeve having a circular cross section called a sheath pipe, which penetrates from the solid base section 14 to a position outside the cloth base section 15 and below the ground surface G. A tube 17 is provided. The sleeve tube 17 has, for example, a nominal diameter of 100 mm, and is formed into a cylindrical shape bent at θ ° at the axial middle portion by blow molding with a vinyl chloride resin or the like. An elliptical opening end face 18 is formed at an angle smaller than 0 °, that is, at an angle θ ° satisfying 0 ° <θ ° <90 °. This angle θ ° is preferably an angle larger than 30 ° and smaller than 60 °, that is, 30 ° <θ ° <60 °, and the optimum angle θ ° is 45 °.
[0030]
Further, one end side which is the upstream end of the sleeve tube 17 is inclined from the solid base portion 14, for example, an angle larger than 0 ° and smaller than 90 °, preferably 30 ° to 60 °, and 45 ° as an optimum angle. The elliptical opening end face 18 at one end of the sleeve tube 17 is parallel to the substantially horizontal upper surface 19 of the solid base portion 14, and the other end of the sleeve tube 17 is The opening end face 18 is substantially horizontal below the ground surface G and is flush with the outer side surface of the cloth foundation 15.
[0031]
A temporary fixing closure main body 21 for closing the opening end face 18 at one end side of the sleeve tube 17 is formed of a synthetic resin into a substantially cylindrical shape having a circular cross section. On the other end side, a fitting tube portion 23 is formed from the opening end face 18 on one end side of the sleeve tube 17 to be fitted to the inner periphery of the sleeve tube 17. The outer diameter of the fitting cylindrical portion 23 of the temporary fixing closure main body 21 is reduced in accordance with the inner circumference of the sleeve tube 17, and the other end surface of the temporary fixing closure main body 21 on the side of the fitting cylindrical portion 23. Is open.
[0032]
An elliptical engaging step 24 abutting on the opening end face 18 of the sleeve tube 17 forms the fitting cylindrical portion 23 at one end of the outer periphery of the fitting cylindrical portion 23 of the temporary fixing closure body 21. It is formed by a reduced diameter step. The engagement step portion 24 has an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the temporary fixing closure main body 21 in accordance with the angle of the opening end face 18 of the sleeve tube 17, that is, 0 ° <θ ° < It is formed to be inclined at an angle θ of 90 °. This angle θ ° is preferably an angle larger than 30 ° and smaller than 60 °, that is, 30 ° <θ ° <60 °, and the optimum angle θ ° is 45 °.
[0033]
A sleeve is fitted on the outer peripheral surface of the fitting tubular portion 23 of the temporary fixing closure main body 21 from the opening end surface 18 of the sleeve tube 17 toward the other end from the engaging step portion 24. A plurality of guide projections 25 that are pressed against the inner peripheral surface of the pipe 17 are formed.
[0034]
Further, on one end side of the engagement step portion 24 of the fitting tubular portion 23 of the temporary fixing closure body 21, a handhold portion 26 is formed in an annular shape on the outer periphery.
[0035]
Further, as shown in FIG. 4, a flexible tube 27 having an outer diameter smaller than the inner diameter of the sleeve tube 17 can be inserted into and removed from the sleeve tube 17 in a state where the temporary fixing closure body 21 is removed. It is inserted. When the flexible tube 27 is inserted into and removed from the sleeve tube 17, the flexible tube 27 bends or curves and is inserted into and removed from the sleeve tube 17. The flexible tube 27 has fitting receiving ports 30 and 31 at one end and the other end, respectively.
[0036]
A short tube 32 is internally fitted into and fixed to one end fitting receiving port 30 of the flexible tube 27, and the short tube 32 has an axial direction of 60 ° to 45 °, preferably 45 °. An elbow 33 is adhesively fixed by inner fitting, and a drain pipe 34 having the same diameter as the flexible pipe 27 is connected to the elbow 33 by inner fitting. A drain pipe 35 having the same diameter as that of the flexible tube 27 is fitted and fixed to the other end fitting receiving port 31 of the flexible tube 27 inserted through the sleeve tube 17.
[0037]
Further, between the inner periphery of the sleeve tube 17 and the outer periphery of the other end fitting receiving port 31, there is a space between the other end fitting receiving port 31 of the flexible tube 27 and the other end of the sleeve tube 17. An annular packing 36 to be closed is attached.
[0038]
The drain pipe 34 is connected to a drainage facility for a building. The drain pipe 34 is positioned and fixed on the solid foundation 14 by a floor band 37.
[0039]
Next, a method of constructing the drainage device according to this embodiment will be described.
[0040]
First, before the solid foundation 14 and the cloth foundation 15 of the foundation 13 of the building are cast into concrete, a formwork of the foundation 13 is assembled, and a reinforcing bar is disposed in the formwork. Next, the sleeve tube 17 is inclined such that the open end face 18 at one end thereof protrudes from the upper surface 19 of the solid base 14, and the open end face 18 is substantially parallel to the upper surface 19 of the solid base 14. 17 is fixed to a reinforcing bar or the like with a wire or a special fixing tool so that the opening at the other end of the base 17 is exposed to the outer surface of the fabric base 15 at a position below the ground surface G.
[0041]
Next, the fitting cylindrical portion 23 of the temporary fixing closure main body 21 is fitted inside from the opening end face 18 on one end side of the sleeve tube 17.
[0042]
In this state, the liquid concrete is poured into the formwork and the foundation 13 is constructed. At this time, liquid concrete does not enter the sleeve tube 17. Then, after the concrete is hardened, the mold is removed.
[0043]
When the drainage device 11 is to be constructed, the fitting tubular portion 23 of the temporary fixing closure body 21 is pulled out of the sleeve tube 17, and the flexible tube 27 is removably inserted into the sleeve tube 17. Thereafter, an elbow 33 is fitted and bonded to one end fitting receiving port 30 on one end side which is the upstream end of the flexible pipe 27, and a drain pipe 34 from a drainage facility for a building is fitted and bonded to the elbow 33. A downstream drainage pipe 35 connected to a drainage basin or the like is fitted and connected to the other end fitting reception port 31 which is the downstream end of the flexible pipe 27, and is adhesively fixed.
[0044]
Next, the operation of this embodiment will be described.
[0045]
For example, when the drain pipe is piped to the foundation 13 of the building, when the concrete is cast so that one end of the sleeve pipe 17 called a sheath pipe is opened on the upper surface 19 of the foundation 13, the sleeve pipe 17 is laid. The liquid concrete is prevented from entering the sleeve tube 17 by fitting the fitting tubular portion 23 of the temporary fixing closure main body 21 to the opening end face 18 at one end of the building, and the foundation 13 of the building is constructed. Work efficiency can be improved.
[0046]
In addition, since the engaging step 24 formed on the fitting cylindrical portion 23 of the temporary fixing closure main body 21 is formed in an elliptical shape to be in contact with the opening end face 18 of the sleeve tube 17, By fitting the fitting tube portion 23 to the sleeve tube 17 until the engagement step portion 24 comes into contact with the opening end surface 18, the oval opening end surface 18 of the sleeve tube 17 can be reliably closed, and the concrete, dust, etc. Insects and the like can be reliably prevented from entering the occluded tube.
[0047]
Further, when the concrete 13 is cast and the foundation 13 is constructed in a state where the fitting tubular portion 23 of the temporary fixing closure body 21 is fitted to the elliptical opening end face 18 of the sleeve pipe 17, the concrete hardens due to hardening. Even when the sleeve tube 17 contracts and a compressive force acts on the sleeve tube 17, the elliptical opening end face 18 of the sleeve tube 17 is not deformed.
[0048]
Further, the sleeve tube 17 is inclined and buried in the foundation 13, and an open end face 18 at one end is cut at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the sleeve pipe 17 to form an elliptical open end face 18. The opening end face 18 can be prevented from being deformed by the temporary fixing closure body 21 even if the inclined side of the sleeve tube 17 is easily expanded.
[0049]
Further, since the open end face 18 at one end of the sleeve pipe 17 has an elliptical shape, the open end face 18 on the upper surface can be a horizontal plane even if the sleeve pipe 17 is installed in an inclined manner such that one end side is on the upper side. When installed on the foundation 13 of a building, the projecting dimension of the sleeve tube 17 from the foundation 13 can be reduced, and the position of the fitting receiving port 30 of the flexible tube 27 inserted through the sleeve tube 17 can be reduced. The drain pipe 34 on the upstream side can be installed in a narrow space with a gradient.
[0050]
Further, when a drain pipe is constructed on the foundation 13, the fitting tube portion 23 of the temporary fixing obturator body 21 is pulled out of the sleeve pipe 17 and the end face is opened, so that a drain pipe can be formed on the sleeve pipe 17. The flexible pipe 27 is inserted through the flexible pipe 27, and the upstream side of the flexible pipe 27 is connected to the upstream drain pipe 34 connected to the water supply / drainage facility for the building, and the downstream side of the flexible pipe 27 is connected to the drainage system at an external position of the building. Can be connected to piping.
[0051]
When the drainage pipe of the building is repaired or replaced, the portion exposed from the sleeve pipe 17 on the upstream side or the downstream side of the flexible pipe 27 serving as the drainage pipe inserted into the sleeve pipe 17 is cut. The flexible pipe 27 can be pulled out from the pipe 17, and the drainage system of the building can be easily repaired.
[0052]
Further, the sleeve tube 17 is inclined, for example, buried in the foundation 13, and the open end surface 18 at one end is formed at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the sleeve tube 17 to form an elliptical open end surface. The opening end face 18 is formed on the fitting tubular portion 23 of the temporary fixing closure body 21 even when the inclined side portion 18a of the sleeve tube 17 is easily expanded, and even if a slight deformation occurs. 25 is pressed against the inner peripheral surface of the sleeve tube 17 so that the temporary fixing closure main body 21 can be prevented from unintentionally falling off, and the deformation of the open end surface 18 of the sleeve tube 17 is restored to its original shape.
[0053]
Furthermore, even if there is a dimensional error in the inner diameter of the sleeve tube 17, the guide projection 25 formed on the fitting tubular portion 23 of the temporary fixing and closing device main body 21 is pressed against the inner peripheral surface of the sleeve tube 17 and the temporary fixing and closing device is The main body 21 does not come off.
[0054]
Further, the temporary fixing obturator main body 21 can be easily pulled out of the sleeve tube 17 by the hand-holding portion 26 and detached from the sleeve tube 17.
[0055]
When a drainage pipe is constructed on the foundation 13 of the building, the fitting tube portion 23 of the temporary fixing closure body 21 is pulled out of the sleeve tube 17 and the opening end face 18 is opened, so that the sleeve tube 17 is opened. The flexible pipe 27 can be inserted into the pipe, the upstream side of the flexible pipe 27 can be connected to the drainage facility of the building, and the downstream side of the flexible pipe 27 can be connected to the drainage piping at an external position of the building. And the drainage system piping becomes easier.
[0056]
In addition, by penetrating the downstream end of the sleeve tube 17 to a position below the ground surface G, the sleeve tube 17 and the flexible tube 27 are not exposed on the ground surface G at an external position of the building, so that sunlight or the like can be obtained. The deterioration and damage of the drainage pipe material due to the irradiation of ultraviolet rays and the impact of the water can be prevented.
[0057]
Further, a packing 36 attached between the inner periphery of the sleeve tube 17 and the outer periphery of the other end fitting port 31 allows the other end fitting port 31 of the flexible tube 27 and the other end of the sleeve tube 17 to be mounted. Is blocked, and invasion of insects, earth and sand, etc. into the sleeve tube 17 can be prevented.
[0058]
In the above-described embodiment, the upstream drain pipe 34 connected to the fitting receptacle 30 of the flexible pipe 27 removably inserted into the sleeve pipe 17 is horizontally turned using a plurality of elbows 33 or the like. It can also be connected movably, so that the piping work of the drainage channel can be made easier.
[0059]
Next, a temporary fixing closure according to another embodiment will be described with reference to FIGS.
[0060]
The temporary fixing closure main body 21 of the temporary fixing closing closure is formed of a synthetic resin into a substantially cylindrical shape having a circular cross section, and one end surface of the temporary fixing closure main body 21 is closed by a closing surface 22 and the other end thereof. On the side, there is formed a fitting cylindrical portion 23 fitted to the inner periphery of the sleeve tube 17 from the open end face 18 on one end side of the sleeve tube 17. The outer diameter of the fitting cylindrical portion 23 of the temporary fixing closure main body 21 is reduced in accordance with the inner circumference of the sleeve tube 17, and the other end surface of the temporary fixing closure main body 21 on the side of the fitting cylindrical portion 23. Is open.
[0061]
An elliptical engaging step portion 24 is formed on the outer peripheral portion of the fitting cylindrical portion 23 of the temporary fixing closure body 21 so as to abut on the opening end face 18 of the sleeve tube 17. The engagement step portion 24 has an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the temporary fixing closure main body 21 in accordance with the angle of the opening end face 18 of the sleeve tube 17, that is, 0 ° <θ ° < It is formed to be inclined at an angle θ of 90 °. This angle θ ° is preferably an angle larger than 30 ° and smaller than 60 °, that is, 30 ° <θ ° <60 °, and the optimum angle θ ° is 45 °.
[0062]
A sleeve is fitted on the outer peripheral surface of the fitting tubular portion 23 of the temporary fixing closure main body 21 from the opening end surface 18 of the sleeve tube 17 toward the other end from the engaging step portion 24. A plurality of guide projections 25 that are pressed against the inner peripheral surface of the pipe 17 are formed. The other end of each of the guide projections 25 is formed on a guide surface 25a whose thickness increases in the diameter-enlarging direction from the other end so that the guide protrusion 25 can be easily fitted into the inner periphery of the sleeve tube 17. ing.
[0063]
Further, the outer peripheral edge of the engaging step portion 24 formed in the fitting tubular portion 23 of the temporary fixing closure main body 21 is enlarged in diameter from the opening end face 18 of the sleeve tube 17 so that the handhold portion 26 is formed in an annular shape.
[0064]
In this embodiment, the temporary fixing closure main body 21 does not include a portion extending to one end side from the engagement step portion 24, and is different from the temporary fixing closure main body 21 shown in FIGS. When fitted to the open end face 18 of the tube 17, the protrusion dimension becomes shorter.
[0065]
The other operation of this embodiment is the same as that of the embodiment shown in FIGS.
[0066]
The engaging step 24 formed in the fitting cylindrical portion 23 of the temporary fixing closure main body 21 is formed in an elliptical shape to be in contact with the opening end face 18 of the sleeve pipe 17, and engages with the opening end face 18 of the sleeve pipe 17. By fitting the fitting tube portion 23 to the sleeve tube 17 until the joint portion 24 comes into contact, the elliptical opening end face 18 of the sleeve tube 17 can be reliably closed.
[0067]
Further, the sleeve tube 17 is inclined and buried in the foundation 13, and an open end face 18 at one end is cut at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the sleeve pipe 17 to form an elliptical open end face 18. The opening end face 18 can be prevented from being deformed by the fitting of the temporary fixing closure body 21 even if the inclined side of the sleeve tube 17 is easily expanded.
[0068]
Further, the open end face 18 at one end of the sleeve tube 17 is elliptical, and even if the sleeve pipe 17 is installed in an inclined manner such that one end side is on the upper side, the open end face 18 on the upper surface can be made a horizontal surface and temporarily closed. When the tool main body 21 is fitted to the sleeve tube 17, the protrusion dimension of the sleeve tube 17 from the base 13 can be reduced, and the position of the fitting receiving port 30 of the flexible tube 27 inserted into the sleeve tube 17 can be reduced. A drain pipe 34 on the upstream side can be provided in a narrow space with a gradient.
[0069]
Further, the sleeve tube 17 is inclined, for example, buried in the foundation 13, and the open end surface 18 at one end is formed at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the sleeve tube 17 to form an elliptical open end surface. The opening end face 18 is formed on the fitting tubular portion 23 of the temporary fixing closure body 21 even when the inclined side portion 18a of the sleeve tube 17 is easily expanded, and even if a slight deformation occurs. 25 is pressed against the inner peripheral surface of the sleeve tube 17 so that the temporary fixing closure main body 21 can be prevented from unintentionally coming off, and the deformation of the open end surface 18 of the sleeve tube 17 is restored to its original shape.
[0070]
Furthermore, even if there is a dimensional error in the inner diameter of the sleeve tube 17, the guide projection 25 formed on the fitting tubular portion 23 of the temporary fixing and closing device main body 21 is pressed against the inner peripheral surface of the sleeve tube 17 and the temporary fixing and closing device is The main body 21 does not come off.
[0071]
Further, the temporary fixing obturator main body 21 can be easily pulled out of the sleeve tube 17 by the hand-holding portion 26 and detached from the sleeve tube 17.
[0072]
Further, in each of the above embodiments, the drainage channel device has been described. However, the present invention is not limited to the drainage channel device but can be applied to a water supply channel device. In this case, the flexible pipe 27 inserted through the sleeve pipe 17 is used. One end of the flexible pipe 27 can be connected to facilities such as a faucet or the like, and the other end of the flexible pipe 27 can be connected to the upstream side of the water supply pipe.
[0073]
Further, in each of the above-described embodiments, the sleeve tube 17 has an opening end face 18 at one end side on the upper surface of the solid base portion 14 on which the reinforcing bar of the base 13 is disposed, and has the other end on the outer surface of the cloth base portion 15. Although the configuration in which the side is opened has been described, the sleeve pipe 17 has an opening end face 18 on one end side on the upper surface of the moisture-resistant concrete section under the floor, and has another end on the outer face of the cloth base section 15 continuous with the moisture-resistant concrete section. A configuration in which the side is opened may be adopted.
[0074]
【The invention's effect】
According to the first aspect of the present invention, for example, the fitting end of the main body of the temporary closing obturator main body is formed by opening the open end face opened on the upper surface of the base of the occluded pipe for piping the supply / drainage pipe so as to be removably inserted into the foundation of the building. By fitting the parts, it is possible to prevent the liquid concrete from entering the closed pipe body, and the construction work efficiency of the foundation of the building is improved.
[0075]
In addition, by fitting the fitting tubular part of the temporary fixing closure body from the open end face of the closed pipe body, the concrete poured in at the time of foundation construction contracts due to hardening and compressive force acts on the closed pipe body. Even if it does, the open end face of the closed pipe body will not be deformed.
[0076]
Further, the engaging step formed in the fitting tubular portion of the temporary fixing closure body is formed in an elliptical shape in contact with the opening end face of the closed pipe body, and the elliptical opening end face of the closed pipe body is formed. Can be reliably closed.
[0077]
The open end face of the closed pipe body is an elliptical open end face at an angle larger than 0 ° and smaller than 90 ° with respect to the axis of the closed pipe body, and this open end face is on the inclined side of the closed pipe body. Even if it spreads easily, deformation can be prevented by the temporary fixing closure body.
[0078]
Furthermore, even if the open end face of one end of the occluded pipe body is formed in an elliptical shape so that the occluded pipe body is inclined so that one end side is on the upper side, the projecting dimension of the occluded pipe body from the base can be reduced.
[0079]
According to the second aspect of the present invention, the open end surface of the occluded pipe is an elliptical open end surface, and the open end surface is easily expanded on the inclined side of the occluded pipe, and even if some deformation occurs. The guide projection formed on the fitting tubular portion of the temporary fixing closure body is pressed against the inner peripheral surface of the closed pipe body, so that the temporary fixing closure body is prevented from being unintentionally dislodged and disconnected, and the closed pipe body is also prevented. The deformation of the opening end face is restored to the original shape. Furthermore, even if there is a dimensional error in the inner diameter of the closed pipe body, the guide projection formed on the fitting tubular portion of the temporarily closed closure body is pressed against the inner peripheral surface of the closed pipe body so that the temporarily closed closure body is formed. Does not come off.
[0080]
According to the third aspect of the present invention, the temporary fastening closure device can be easily pulled out of the closed pipe body by the handle portion.
[0081]
According to the invention as set forth in claim 4, when plumbing the water supply / drainage pipe to the foundation of the building, the fitting tubular portion of the temporary fixing obturator is pulled out of the occluded pipe body and the opening end face is opened, whereby this is achieved. A flexible plumbing pipe is inserted into the closed pipe body, and one side of the plumbing pipe can be connected to plumbing equipment of the building and the other side of the plumbing pipe can be connected to plumbing of the plumbing system at an external position of the building, Piping the plumbing system through the foundation of the building is easier.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional front view of a drainage channel device to which a temporary closing closure for closing an open end face of a pipe body according to an embodiment of the present invention is applied.
FIG. 2 is a side view of the temporary fixing closure device.
FIG. 3 is a vertical sectional front view of a part of the temporary fixing closure device.
FIG. 4 is a vertical sectional front view of the drainage device.
FIG. 5 is a front view of a temporary fixing closure for closing an open end face of a tubular body according to another embodiment of the present invention.
FIG. 6 is a bottom view of the temporary fixing closure device.
[Explanation of symbols]
13 Basics
17 Sleeve tube of closed tube
18 Open end face of sleeve tube
19 Top
21 Temporary closure body
23 Fitting tube
24 Engagement step
25 Guide projection
26 Handle
27 Flexible tube

Claims (4)

A temporary stopper for closing an oval opening end surface of a closed tube body whose one end surface is at an angle larger than 0 ° and smaller than 90 ° with respect to an axis,
A temporary fixing closure body for closing the open end face of the closed pipe body has a fitting cylindrical portion fitted from the open end face to the inner periphery of the closed pipe body,
This fitting tube portion closes at least one end surface,
A provisionally closed closure for closing an open end surface of a tubular body, wherein an elliptical engagement step portion abutting on an open end surface of the closed tubular body is formed on an outer periphery of the fitting tubular portion. A guide projection that is pressed against the inner peripheral surface of the closed pipe body is formed on the outer peripheral surface of the fitting cylindrical portion of the temporary fixing closure body that is fitted to the inner circumference from the open end surface of the closed pipe body. A temporary fixing closure for closing an open end face of a tubular body according to claim 1. 3. A temporary fastening blockage for closing an open end face of a tubular body according to claim 1 or 2, wherein a handle portion is provided on an outer periphery at one end side of the engagement step portion of the fitting tubular portion of the temporary fastening closure device body. Utensils. The closed pipe body has one end opened to the upper surface of the foundation of the building and the other end opened to the outer surface of the foundation, buried in the foundation, and from the open end surface opened to the upper surface of the foundation, A flexible tube having an upstream side connected to a water supply / drainage facility for a building and a downstream side connected to a water supply / drainage passage is removably inserted into the other end portion opened to the outside surface of the vehicle. 4. A temporary closure device for closing an open end surface of a tubular body according to any one of 1 to 3.

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