JPH0361789A - Replacing method for branch connecting pipe joint to ribbed pipe and fitting member used therefor - Google Patents

Abstract

PURPOSE:To sufficiently secure the water stopping property by filling a jointing material between the outer frame and inner frame of a fitting member, pressing the connecting face of a saddle section provided on the base end section of a branch pipe connection section on the upper face, and connecting both of them. CONSTITUTION:A branch hole A is formed at the preset position of a ribbed pipe P, and a fitting member 1 is fitted. A jointing material is filled in a void section 10 between an outer frame section 11 and an inner frame section 12, a pipe joint 2 is pressed to the surface of the fitting member 1, the upper end section of the inner frame section 12 is inserted into the base end section 22 of a saddle section 21, and the filled jointing material 3 is closely stuck to the inner face of the saddle section 21. The jointing material 3 protruded to the outside is wiped out, the jointing material 3 is hardened, and the branch hole A and a branch pipe connection section 23 are communicated with no gap. The water stopping property can be improved.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a branch connection pipe joint in which a saddle part is provided at the proximal end of a branch pipe connection part that receives an end of a branch pipe. The present invention relates to an attachment method for attaching to the peripheral wall of a ribbed tube having ribs, and an attachment member used therein.

(Prior Art) Conventionally, this type of branch connection pipe joint is known, for example, as disclosed in Japanese Unexamined Patent Publication No. 151411/1983.

As shown in FIG. 35, in this pipe joint, a branch hole is bored in the peripheral wall of the ribbed pipe a, the proximal end of the branch pipe connection C is inserted into the branch hole, and the proximal end is inserted into the branch hole. A saddle portion d protruding from the outer periphery of the ribbed tube a is applied to the outer surface of the ribbed tube a, and a protrusion e protruding from the joint surface of the saddle portion d is inserted between each rib f of the ribbed tube a to join. This prevents a gap from forming between the joint surface of the saddle part d and the outer peripheral surface of the ribbed pipe a, and allows the branch connection pipe joint to be firmly connected to the ribbed pipe. be.

(Problem to be Solved by the Invention) However, in the branch connection pipe joint described above, during construction, the joint surface of the saddle part d is applied to the outer circumferential surface of the ribbed pipe a to connect the saddle part d. There was an inconvenience in that the shapes of the protrusions e protruding from the joint surfaces of the tubes and the ribs f of the ribbed tube a had to be perfectly matched for connection. Furthermore, if mud, sand, etc. adhere between the ribs r, the joint surface of the saddle portion d will rise, causing a problem that it will not fit properly along the outer peripheral surface of the ribbed tube a.

On the other hand, the branch connection pipe fitting itself is also shaped so that the shape of each rib f of the ribbed pipe a perfectly matches the shape of the protrusion e protruding from the joint surface of the saddle part d. This causes the inconvenience that the protrusions e... must be formed in advance. Also, according to the shape of each rib f, protrusions e and
Even if .

The present invention was made in view of the above-mentioned circumstances, and includes a method for attaching a branch connection pipe joint to a ribbed pipe that can easily adhere to the ribbed pipe and provide a reliable water stop, and an attachment used therein. The purpose is to provide a mounting member.

(Means for Solving the Problems) A method for attaching a branch connection pipe joint to a ribbed pipe according to the present invention is a branch connection pipe in which a saddle portion is provided at the proximal end of the branch pipe connection portion that receives the end of the branch pipe. A method for attaching a joint to the circumferential wall of a ribbed tube having a large number of annular ribs on its outer circumferential surface, the lower surface having a shape that fits with the ribs of the ribbed tube and comes into close contact with the circumferential wall of the liquid tube. Temporarily attach a mounting member consisting of an outer frame formed by the above-mentioned outer frame and an inner frame formed to match the branch hole formed in the circumferential wall of the ribbed tube to the branch hole formed in the circumferential wall of the ribbed tube. Thereafter, a bonding agent is filled between the outer frame and the inner frame of the attachment member, and the bonding surface of the saddle portion is pressed against the upper surface of the attachment member to bond them together.

The attachment member of the present invention attaches a branch connection pipe joint, in which a saddle portion is provided at the proximal end of the branch pipe connection portion that receives the end of the branch pipe, to the peripheral wall of a ribbed pipe having a large number of annular ribs on the outer peripheral surface. An attachment member for attaching the ribbed pipe, which includes an outer frame portion that closely contacts the joint surface of the peripheral wall of the ribbed tube and the saddle portion, an inner frame portion formed within the outer frame portion, and the outer frame portion and the inner frame. and a bridge section connected to a space between the outer frame section and the outer frame section, and the outer frame section has a lower surface curved so as to follow the outer diameter of the ribbed tube, and a ribbed section on the lower surface. A rib fitting recess into which the rib of the ribbed pipe fits is formed, and the inner frame is formed so as to communicate with or engage with a branch hole formed in the ribbed pipe and a branch pipe connection part of the pipe joint. It is something that

(Function) In the attachment method of the present invention, first, the outer frame of the attachment member is brought into close contact with the outer peripheral surface of the ribbed tube, and the inner frame of the attachment member is communicated with the branch hole drilled in the ribbed tube. . Next, the space between the outer frame and the inner frame is filled with a bonding agent. In this state, the connecting portion between the branch hole and the inner frame is filled with a bonding agent and communicates with each other without creating a gap. Thereafter, the saddle portion of the branch connection pipe joint is crimped onto the top surface of this attachment member to communicate the inner frame and the base end of the saddle portion, and the outer peripheral surface of the ribbed pipe and the saddle portion of the branch connection pipe joint are connected. The bonding surface is substantially bonded with a bonding agent. At this time, since the space in the attachment member is filled with a bonding agent, the connecting portion between the base end of the saddle and the inner frame is filled with bonding agent and communicates without creating a gap. .

On the other hand, in the attachment member of the present invention, the lower surface of the outer frame is curved along the outer diameter of the ribbed tube, and a rib fitting recess into which the rib of the ribbed tube is fitted is formed on the lower surface. As a result, the outer frame portion comes into close contact with the peripheral wall of the ribbed tube. In addition, the inner frame is provided with a bridge section connected to the space between the inner frame and the outer frame so as to communicate between the branch hole formed in the ribbed pipe and the branch connection section of the pipe joint. Since it is integrally formed,
The space between the outer frame and the inner frame can be completely filled with the bonding agent surrounding the inner frame. Furthermore, by filling the space between the outer frame portion and the inner frame portion with a bonding agent, it is possible to bond the outer peripheral surface of the ribbed pipe and the joint surface of the branch connection pipe joint with the bonding agent.

(Example) [First example] A first embodiment of the present invention will be described below with reference to the drawings.

1 is a plan view showing a mounting member 1 according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a sectional view taken along line I-1 in FIG. 1.

This attachment member 1 is made of synthetic resin, and includes an outer frame portion 11 that is in close contact with the peripheral wall of the ribbed tube P (see FIG. 5) and the inner surface of the saddle portion 21, and an inner frame portion formed within the outer frame portion 11. Frame part 1
2, and a space 10 between the outer frame portion 11 and the inner frame portion 12.
It is constituted by a bridging portion 13.13 connected to the bridging portion 13.13.

The outer frame part 11 has two parts facing each other along the circumferential direction of the ribbed pipe P.
It is framed in a rectangular shape by two frame plates 14.14 and two frame plates 15.15 facing each other along the axial direction of the ribbed tube P. Among these, the bottom sides of the frame plates 14.14 that face each other along the circumferential direction are arranged so that the bottom sides of the frame plates 14.
It is curved to the same curvature as the outer circumference of. Further, the upper side of this frame plate 14° 14 is also curved to the same curvature as the curvature of the saddle portion 21 so as to follow the inner surface of the saddle portion 21.

On the other hand, the bottom sides of the frame plates 15.15 that face each other along the axial direction are arranged at the same intervals and at the same height as the ribs R so that they fit into the ribs R and are along the axial direction of the ribbed pipe P. Rib fitting recess 15a
...is formed. Further, the upper side of this frame plate 15.15 is also formed in a straight line along the inner surface of the saddle portion 21. The area of the outer frame portion 11 is such that the area of the outer frame portion 11 is such that the outer frame portion 11 is covered by the saddle portion 21.
The area of the outer frame 11 may be smaller than the area of the saddle part 21, or may be made equal to or slightly larger than the area of the saddle part 21 so as to match the area of the saddle part 21. It is not limited to a frame, but may be cylindrical.

The inner frame portion 12 has a cylindrical shape. The diameter of the lower end of this inner frame part 12 is the branch hole A drilled in the ribbed pipe P.
It has approximately the same diameter as the branch hole A so that it can be inserted into the branch hole A. Further, the lower end portion is cut to have the same curvature as the inner periphery of the ribbed tube P so that it does not protrude into the ribbed tube P when it is fitted into the branch hole A. On the other hand, the diameter of the upper end of the inner frame portion 12 is such that the diameter of the upper end portion of the inner frame portion 12 is such that the proximal end portion 22 protruding from the saddle portion 21 is fitted from below and communicates with the branch pipe connecting portion 23 that is fitted from above the proximal end portion 22. It has approximately the same diameter as the branch pipe connecting portion 22 so that it can communicate with the branch pipe connecting portion 22.

The bridge portion 13 extends from the inner surface of the frame plate 15.15 along the axial direction to the outer peripheral surface of the inner frame portion 12 so as to join the outer frame portion 11 and the inner frame portion 12. This pre-fuji part 13 is arranged in the inner frame part so that the lower end part of the inner frame part 12 is fitted into the ribbed pipe P without protruding with the outer frame part 11 along the peripheral wall of the ribbed pipe P. 12 to ribbed pipe P
It is joined at a position shifted downward by the wall thickness. In this embodiment, the bridge portion 13 is continuously provided from the inner surface of the frame plate 15. As long as a space can be secured and the outer frame part 11 and the inner frame part 12 can be joined in a predetermined positional relationship, the position where the bridge part 13 is installed in a row does not matter.

Next, by using the attachment member 1 explained above, the ribbed pipe P
A branch connection pipe joint (hereinafter simply referred to as a pipe joint) is attached to the peripheral wall of the pipe.
2 will be explained below.

First, a branch hole A is formed at a predetermined location of the ribbed pipe P, as shown in FIGS. 5 and 6.

Next, the rib fitting recesses 15a of the outer frame part 11 are fitted into the ribs R of the ribbed pipe P, and the lower end of the inner frame part 12 is fitted into the branch hole A, so that the rib fitting recesses 15a of the ribbed pipe P are fitted. Attach the attachment member 1 to the peripheral wall.

Next, in the space IO between the outer frame part 11 and the inner frame part 12,
As shown in FIGS. 7 and 8, a bonding agent 3 is filled. As this bonding agent 3, an epoxy-based, urethane-based, silicone-based, etc. bonding agent 3 is used. Further, the bonding agent 3 is filled in an amount in excess of the volume of the space 10 so that the bonding agent 3 easily adheres to the inner surface of the saddle portion 21 .

Thereafter, the pipe joint 2 is crimped onto the surface of the attachment member 1, as shown in FIGS. 7 to 10. This crimping is performed by tightening the ribbed pipe P and the pipe joint 2 using a wire or the like (not shown). Then, the upper end portion of the inner frame portion 12 is inserted into the base end portion 22 of the saddle portion 21, and the space portion 1
The bonding agent 3 filled with 0.0% is brought into close contact with the inner surface of the saddle portion 21 of the pipe joint 2. Thereafter, the bonding agent 3 that has protruded to the outside is wiped off, and the bonding agent 3 is sufficiently hardened.

In this state, the inner frame portion 11 is filled with bonding agent 3,
The branch hole A communicates with the branch pipe connection part 23 without creating a gap. Further, in this state, the diameters of the branch hole A, the inner frame portion 11, and the branch pipe connection portion 23 are completely matched, so that the fluidity within the pipe is not impaired.

In addition, the outer circumferential surface of the ribbed tube P and the inner surface of the saddle portion 21 are
Since the bonding agent 3 is used to substantially bond the ribbed pipe P, there may be variations in the shape of the ribbed pipe P or the inner surface of the saddle part 2I of the pipe fitting 2, or if there is mud, sand, etc. attached to the surface of the ribbed pipe P. Even if it is, sufficient water-stopping properties can be ensured and it can be easily joined. Furthermore, the strength of the branch pipe 23 can be improved by making the part bonded by the bonding agent 3, that is, the space 10, thick (or having a sufficient thickness).

[Second Embodiment] This example is shown in Figs. 11 to 16, in which Fig. 11 is a plan view of the mounting member, Fig. 12 is a front view thereof, Fig. 13 is a side view thereof, and Fig. 14 is a plan view of the mounting member. ■-shoreline sectional view in Figure 11, No. 15
The figure is a partially cutaway front view showing the state after construction, and FIG. 16 is a partially cutaway side view of the same.

This example differs from that of the first example described above only in the shape of the inner frame portion 12, so only the difference will be explained here, and other explanations will be omitted. Note that the same components as those in the first embodiment are given the same reference numerals.

The inner frame portion 12 in this example has a branch hole A and a base end portion 22.
It is designed so that it does not fit into the opening periphery of the branch hole A and the flat end periphery of the base end portion 22. That is, the lower end of the inner frame 12 is curved to the same curvature as the outer periphery of the ribbed pipe P, similar to the outer frame 11, and the upper end of the inner frame 12 is also curved similarly to the outer frame 12. , saddle part 21
It is curved to the same curvature as .

[Third Embodiment] This example is shown in Figs. 17 to 22, in which Fig. 17 is a plan view of the attachment member, Fig. 18 is a front view thereof, Fig. 19 is a side view thereof, and Fig. 20 is a plan view of the attachment member. ■-■ line sectional view in Figure 17, No. 21
The figure is a partially broken front view showing the state after construction, and FIG. 22 is a partially broken side view of the same.

This example differs from that of the first example described above only in the shape of the outer frame portion 11, so only the difference will be explained here, and other explanations will be omitted. Note that the same components as in the first embodiment are given the same reference numerals.

The outer frame portion 11 in this example has a horizontal upper side, and allows the pipe joint 2 having a flat saddle portion 21 to be attached thereto.

This attachment member 1 has the advantage that a pipe joint 2 having a common flat saddle part 21 can be used without having to use different saddle parts 2I having different curvatures depending on the diameter of the ribbed pipe P.

[Fourth embodiment] This example is shown in Figs. 23 to 28, in which Fig. 23 is a plan view of the attachment member, Fig. 24 is a front view thereof, Fig. 25 is a side view thereof, and Fig. 26 is a plan view of the attachment member. Cross-sectional view along the line ■-■ in Figure 23, No. 27
The figure is a partially broken front view showing the state after construction, and FIG. 28 is a partially broken side view of the same.

This example differs from that of the first example described above only in the shape of the inner frame portion 12, so only the difference will be explained here, and other explanations will be omitted. Note that the same components as in the first embodiment are given the same reference numerals.

The inner frame portion 12 in this example has the upper end portion of the inner frame portion 12 enlarged in diameter so that the inner frame portion 12 does not communicate with the branch pipe connection portion 23 within the base end portion 22, but communicates with the branch pipe connection portion 23 in the space IO. A fitting part 12a into which the branch pipe connecting part 23 is fitted is provided.

According to this attachment member l, the branch pipe connection part 23 and the inner frame part 12
Since the fitting portion can be directly surrounded by the bonding agent 3, the branch pipe connection portion 23 can be bonded even more firmly.

[Fifth Embodiment] This example is shown in Figs. 29 to 34, in which Fig. 29 is a plan view of the attachment member, Fig. 30 is a front view thereof, Fig. 31 is a side view thereof, and Fig. 32 is a plan view of the attachment member. FIG. 29 is a sectional view of VV'41A, FIG. 33 is a partially cutaway front view showing the construction state, and FIG. 34 is a partially cutaway side view of the same.

This example differs from that of the first example described above only in the shape of the inner frame portion 12, so only the difference will be explained here, and other explanations will be omitted. Note that the same components as in the first embodiment are given the same reference numerals.

The inner frame portion 12 in this example has a branch hole A and a base end portion 22.
It has a rectangular shape similar to the outer frame portion 11 so that it does not fit into the outer frame portion 11 and comes into contact with the opening periphery of the branch hole A and the lower end portion of the base end portion 22.

(Effects of the Invention) As described above, according to the attachment method of the present invention, the adhesive is filled around the inner frame portion, and the branch hole and the branch pipe connection portion are communicated with each other without creating a gap. Sufficient water content can be ensured. In addition, since the outer circumferential surface of the ribbed pipe and the joint surface of the pipe fitting are essentially bonded together using a bonding agent, there may be variations in the shape of the ribbed pipe or the inner surface of the saddle of the pipe fitting, or if the ribbed pipe Even if mud, sand, etc. adhere to the surface,
It is possible to ensure sufficient water-stopping properties and easily join without creating gaps.

Further, according to the attachment member of the present invention, it is possible to fill the bonding agent surrounding the inner frame portion, and also to fill the space between the outer frame portion and the inner frame portion with the bonding agent without leaking. It is possible to improve the water-stopping properties of the bonding agent. Furthermore, since the inner frame can be surrounded by a sufficient thickness of adhesive, the adhesive can improve the strength of the branch pipe connection. Furthermore, since the outer peripheral surface of the ribbed pipe and the joining surface of the pipe fitting can be bonded using a bonding agent, the shape of the ribbed pipe and the inner surface of the saddle of the pipe fitting can be formed to perfectly match. It is possible to easily join without having to do so.

[Brief explanation of drawings]

1 to 10 show a first embodiment of a method of attaching a branch connection pipe joint to a ribbed pipe according to the present invention and an attaching member used therein, and FIG. 1 is a plane showing the attaching member. Fig. 2 is a front view of the same, Fig. 3 is a side view of the same, Fig. 4 is a sectional view taken along the line I-I in Fig. 1, Fig. 5 is a front view showing the mounting state of the mounting member, and Fig. Figure 6 is a side view of the same, Figure 7 is a front view showing the installation state of the branch connection pipe joint, Figure 8 is a side view of the same, Figure 9 is a partially cutaway front view showing the state after construction, and Figure 10. 11 to 16 show a second embodiment of the method for attaching a branch connection pipe joint to a ribbed pipe according to the present invention and the attachment member used therein, and FIG. 12 is a front view of the attachment member, FIG. 13 is a side view of the same, FIG. 14 is a sectional view taken along the line nn in FIG. 11, and FIG. 15 shows the state after construction. Partially cutaway front view, 1st
FIG. 6 is a partially cutaway side view of the same, and FIGS. 17 to 22 show a third embodiment of the method for attaching a branch connection pipe joint to a ribbed pipe according to the present invention and the attachment member used therein. 17
The figure is a plan view showing the mounting member, FIG. 18 is a front view of the same, and
9 is a side view of the same, FIG. 20 is a sectional view taken along the line mm in FIG. 17, FIG. 21 is a partially broken front view showing the state after construction, FIG. 22 is a partially broken side view of the same, and FIG. 23 Figures 28 to 28 show a fourth embodiment of the method of attaching a branch connection pipe joint to a ribbed pipe and the attachment member used therein according to the present invention,
FIG. 23 is a plan view showing the attachment member, FIG. 24 is a front view of the same, FIG. 25 is a side view of the same, and FIG. 26 is a r in FIG. 23.
27 is a partially broken front view showing the state after construction, FIG. 28 is a partially broken side view of the same, and FIGS. 29 to 34 are branching to ribbed pipes according to the present invention. A fifth embodiment of a method for attaching a connecting pipe joint and an attaching member used therein is shown; FIG. 29 is a plan view showing the attaching member, FIG. 30 is a front view thereof, and FIG. 31 is a side view thereof; Fig. 32 is a sectional view taken along the line V-V in Fig. 29, Fig. 33 is a partially broken front view showing the state after construction, Fig. 34 is a partially broken side view of the same, and Fig. 3
FIG. 5 is a sectional view showing a conventional example. ■ ... Attachment member 10 ... Space section 11 ... Outer frame 12 ... Inner frame 13 ... Bridge section 14 ... Frame plate 15 ... Frame board 15a ... Rib fitting Concave portion...branch connection pipe joint 2I...saddle portion 22...base end portion 23...branch pipe connection portion 3...bonding agent P...ribbed pipe R...annular rib A...・Branch hole

Claims (1)

[Claims] 1) A branch connection pipe joint in which a saddle part is provided at the base end of a branch pipe connection part that receives an end of a branch pipe is attached to the peripheral wall of a ribbed pipe having a large number of annular ribs on the outer peripheral surface. A method for attaching an outer frame, the outer frame having a shape in which the lower surface fits into the rib of the ribbed tube and comes into close contact with the circumferential wall of the tube, and a branch hole formed in the circumferential wall of the ribbed tube. After temporarily attaching a mounting member consisting of an inner frame formed to A method for attaching a branch connection pipe joint to a ribbed pipe, characterized in that the joint surface of the saddle portion is pressed against the upper surface of the attachment member to join the two. 2) Attachment for attaching a branch connection pipe joint, in which a saddle part is provided at the base end of the branch pipe connection part that receives the end of the branch pipe, to the circumferential wall of a ribbed pipe that has a large number of annular ribs on the outer circumferential surface. The member includes an outer frame portion that is in close contact with the joint surface of the peripheral wall of the ribbed tube and the saddle portion, an inner frame portion formed within the outer frame portion, and a space between the outer frame portion and the inner frame portion. The outer frame has a lower surface curved along the outer diameter of the ribbed tube, and a rib of the ribbed tube is fitted onto the lower surface of the outer frame. A rib fitting concave portion is formed to fit the tube, and the inner frame portion is formed so as to communicate with or engage with a branch hole formed in the ribbed pipe and a branch pipe connection portion of the pipe joint. Attachment member.