JP3830618B2 - Assembling method of tube connecting socket and assembling structure of the socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a socket having a connection hole for connecting underground pipes such as metal pipes, concrete pipes, pottery pipes, etc., having pipe lines through which communication cables and power transmission cables are inserted. The present invention relates to a method of assembling a tube connecting socket for assembling a wall to a handhole wall and a structure for assembling the socket.
[0002]
[Prior art]
Conventionally, as shown in FIG. 11, in consideration of an earthquake, ground subsidence, etc., an underground buried pipe 108 slides on the side wall 102 of the handhole 101 through a cylindrical socket 130 longer than the wall thickness. Connected as possible.
As shown in FIG. 12, in order to assemble a plurality of sockets 130 on the side wall 102 of the hand hole 101, a square window-like opening 103 is formed in the side wall 102 of the hand hole 101 in advance.
[0003]
In the opening 103 of the hand hole 101, first, a spacer 150 is framed along the inner peripheral surface thereof, and a plurality of sockets 130 are fixed to the spacer 150 by a fixing string 152 at a required interval. .
Thereafter, as shown in FIG. 13, the first mold 141 is attached to the inner surface of the side wall 102 by closing the opening 103, and the second mold is closed by closing the opening 103 on the outer surface of the side wall 102. 145 is pasted. The second mold 145 is provided with through holes 146 for the respective sockets 130.
[0004]
As described above, after the first mold 141 and the second mold 145 are assembled with the side wall 102 of the hand hole 101, the first and second molds 141 and 145 are formed in the molding space. Wall molding materials such as concrete and mortar are poured and filled.
Then, after the wall molding material is solidified, the first and second molds 141 and 145 are removed to close the opening 103 of the side wall 102 of the handhole 101 as shown in FIG. A wall body 104 integrally formed with the side wall 102 is formed, and the plurality of sockets 130 are fixed to the wall body 104.
[0005]
[Problems to be solved by the invention]
By the way, as shown in FIG. 11, a spacer 150 is framed along the inner peripheral surface of the opening 103 of the handhole 101, and a plurality of sockets 130 are required for the spacer 150 by fixing strings 152. The operation of fixing at intervals is troublesome and requires a lot of labor and time, and it is difficult to accurately position and fix the plurality of sockets 130 by the spacer 150 and the fixing string 152. .
[0006]
Furthermore, in the method of fixing the plurality of sockets 130 with the spacer 150 and the fixing string 152, the second mold 145 has a larger outer diameter than the maximum outer diameter of each socket 130 in consideration of the variation in the interval between the plurality of sockets 130. It is necessary to penetrate the through hole 146 with a suitably large hole diameter.
For this reason, as shown in FIG. 13, when a wall molding material such as raw concrete material or mortar material is poured into the molding space of both the first and second molds 141 and 145, a part of the wall molding material is used. There was also a problem that the wall body 104 deteriorated by flowing out from the through hole 146 and solidifying.
[0007]
In view of the above problems, an object of the present invention is to provide a method for assembling a tube connecting socket, which can easily and accurately position and assemble a tube connecting socket with respect to a wall body of a hand hole, and the socket. It is to provide an assembly structure.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a tube connecting socket assembling method according to the invention of claim 1 is a tube for assembling a socket having a connection hole for connecting a tube to a wall of a hand hole. A method for assembling a socket for body connection,
A socket holder having a cylindrical shape having a holding hole in which the socket is inserted and held is formed. On the mold surface of the mold for molding the wall body, the socket holder is placed by positioning means. Positioning and holding,
Thereafter, a wall molding material is filled into the mold to mold the wall body, and at the same time, the socket holder is fixed to the wall body.
[0009]
Accordingly, the socket holder can be easily and accurately positioned and fixed to the wall surface of the handhole with the positioning means by the positioning means with respect to the mold surface of the mold plate forming the wall body. it can.
The tube connection socket can be easily and accurately assembled to the wall body by a very simple operation of fitting the tube connection socket into the holding hole of the socket holder.
Further, since it is not necessary for the mold to have through holes for the tube connection sockets, the wall molding material flows out of the through holes and solidifies. It can eliminate the deterioration of appearance.
[0010]
According to a second aspect of the present invention, there is provided a method for assembling a tube connecting socket according to the first aspect, wherein the positioning means is positioned and attached to the formwork. And a holder holding jig that protrudes from the mold surface of the mold, and a socket holder can be inserted into and removed from the fitting hole of the holder positioning jig through the holding hole. It is the structure inserted and inserted into.
Therefore, the holder positioning jig which constitutes the positioning means is attached to the mold at the mounting portion, so that the fitting holding portion of the holder positioning jig protrudes from the mold surface of the mold. Then, the socket holder is detachably fitted to the fitting holding portion, so that the socket holder is easily and accurately positioned and held with respect to the mold surface of the mold.
[0011]
An assembly structure of a tube connection socket according to the invention of claim 3 is an assembly structure of a tube connection socket for assembling a socket having a connection hole for connecting the tube body to the wall of the hand hole. Because
In the socket holder that is positioned and fixed to the wall body when the wall body is molded by the wall molding material, a holding hole into which the socket is inserted is formed,
Between the socket holder and the socket, a latch that is elastically engaged to prevent the socket from coming off when the socket is inserted into the holding hole of the socket holder for a required length. Means are provided.
Therefore, the tube connection socket can be easily and accurately assembled by a very simple operation of fitting the tube connection socket into the holding hole of the socket holder fixed to the wall of the hand hole.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.
1 to 3, a square window-like opening 3 is formed in the side wall 2 of the handhole 1 in order to assemble a plurality of sockets 30 on the side wall 2 of the handhole 1.
4 and 5, the second of the first and second molds 41 and 45 for closing the opening 3 of the side wall 2 and forming the wall 4 in the opening 3 is the second one. A plurality of mounting holes 46 are provided in the mold 45 at intervals corresponding to the intervals at which the plurality of sockets 30 are arranged.
[0013]
As shown in FIG. 4, the same number of socket holders 10 are positioned and held on the mold surface side of the second mold 45 by a plurality of holder positioning jigs 20 as positioning means.
The holder positioning jig 20 is integrally provided with a fitting holding portion 21 and a bolt 23 forming an attachment portion.
The fitting holding portion 21 has an end plate portion that contacts the mold surface of the second mold 45 at one end and is formed in a cylindrical shape having an outer diameter dimension substantially the same as the outer diameter dimension of the socket 30. A bolt 23 projects from the center of the end plate portion of the fitting holding portion 21.
[0014]
Then, the bolts 23 of the holder positioning jigs 20 are fitted into the mounting holes 46 of the second mold 45 from the mold surface side of the second mold 45, and the nut 24 is attached to the tip of the bolt 23. By tightening, the plurality of holder positioning jigs 20 are attached to the second mold 45, respectively.
Thereby, each fitting holding part 21 of the holder positioning jig 20 protrudes at right angles with the end plate part in contact with the mold surface of the second mold 45.
[0015]
The holder positioning jigs 20 are respectively attached to the plurality of mounting holes 46 of the second mold 45, and the socket holders 10 are removably fitted into the fitting holding portions 21 of the holder positioning jigs 20, respectively. As a result, the plurality of socket holders 10 are positioned and held on the mold surface of the second mold 45.
As shown in FIGS. 1 and 4, the socket holder 10 has a holding hole 11 in which a socket 30 is fitted and held at the center thereof, and closes the opening 3 of the side wall 2 of the handhole 1. Thus, it is formed in a cylindrical shape with both end openings having substantially the same length as the wall thickness of the wall body 4 formed in the opening 3 of the side wall 2. Further, a locking recess 12 for the socket 30 is formed in an annular shape on the inner peripheral surface of the holding hole 11 of the socket holder 10.
[0016]
Then, the socket holders 10 are respectively fitted into the fitting holding portions 21 of the holder positioning jigs 20 of the second mold 45 in the holding holes 11, and one end of these socket holders 10 is the mold of the second mold 45. It is held in contact with the surface. In this state, the fitting holder 21 has a slightly larger diameter than the holding hole 11 of the socket holder 10 and is elastic by synthetic resin or the like so that the socket holder 10 does not accidentally come out of the fitting holder 21. It is desirable to be formed to be compressible.
[0017]
As described above, after the same number of socket holders 10 are positioned and held with respect to the second mold 45 by the plurality of holder positioning jigs 20, the opening 3 is formed on the inner surface of the side wall 2 of the handhole 1. The first mold 141 is closed and attached, and the opening 3 is closed on the outer surface of the side wall 2 and the second mold 45 is attached.
As shown in FIG. 5, after the first mold 41 and the second mold 45 are assembled with the side wall 2 of the hand hole 1, both the first and second molds 41 and 45 are formed. Wall molding materials such as ready-mixed concrete material, mortar material, and molten synthetic resin material are poured into the space and filled.
[0018]
Then, after the wall molding material is solidified, both the first and second molds 41 and 45 are removed to close the opening 3 of the side wall 2 of the handhole 1 as shown in the figure. 2 is molded, and the plurality of socket holders 10 are fixed to the wall 4 in a state where they are positioned at required positions.
[0019]
Further, when the second mold 45 is removed from the side wall 2 of the handhole 1, as shown in FIG. 6A, simultaneously with the removal of the second mold plate 45, the plurality of holder positioning jigs 20 Each fitting holding part 21 can be extracted from the socket holder 10. If the number of holder positioning jigs 20 is large, the nut 24 fastened to the bolts 23 of the holder positioning jig 20 is removed as shown in FIG. It is also possible to remove the holder positioning jig 20 from each socket holder 10 after removing the holder.
As shown in FIG. 7, the holding holes 11 of the plurality of socket holders 10 are fixed in a state where they are positioned at a required arrangement position with respect to the wall body 4 integrally formed with the side wall 2 of the handhole 1. The socket 30 is inserted by a required length from the outer opening of the holding hole 11, whereby the plurality of sockets 30 are assembled to the wall body 4.
[0020]
The socket 30 is formed in a cylindrical shape with openings at both ends provided with connection holes 31 into which the tube body 8 is inserted, and is formed on the inner peripheral surface of the connection hole 31 near the outer opening of the tube body 8. A holding groove 33 is formed in which an elastic seal member 34 that is elastically deformed and closely contacts the outer peripheral surface is assembled.
Further, a locking projection 32 is formed at the insertion-side tip of the socket 30. Then, by inserting the socket 30 by a required length from the outer opening of the holding hole 11 of the socket holder 10, the locking protrusion 32 is elastically engaged with the locking recess 12 of the socket holder 10. As a result, the socket 30 is retained and held in the holding hole 11 of the socket holder 10.
[0021]
Further, when the socket 30 is inserted into the holding hole 11 of the socket holder 10, an adhesive is applied to the outer peripheral surface of the socket 30 or the holding hole 11 of the socket holder 10, and the socket holder 10 and the socket 30 are bonded by the adhesive. Thus, the socket 30 can be reliably prevented from being detached from the socket holder 10 and held.
[0022]
Therefore, in the first embodiment, the wall surface 4 formed by closing the opening 3 of the side wall 2 of the handhole 1 is formed on the mold surface of the second mold 45 that forms the outer surface of the wall body 4. Thus, the same number of socket holders 10 can be easily and accurately positioned and fixed to the required arrangement positions by the fitting holding portions 21 of the plurality of holder positioning jigs 20 arranged in the above.
Then, the same number of sockets 30 can be easily and accurately assembled in the holding holes 11 of the plurality of socket holders 10 of the wall body 4 by an extremely simple operation.
Furthermore, since there is no need to penetrate through the second mold frame 45 with respect to the plurality of sockets 30, the wall molding material 9 of the wall body 4 flows out of the through hole and solidifies. The deterioration of the appearance of the outer wall surface of the wall body 4 can be eliminated.
[0023]
As shown in FIG. 1, the tube 8 is inserted into and connected to the connection holes 31 of the plurality of sockets 30 assembled to the wall body 4 in the same manner as in the prior art. . The pipe body 8 includes a metal pipe body, a concrete pipe body, a ceramic pipe body, and the like, and the pipe body 8 has a communication cable (optical fiber cable, electric cable, etc.), a power transmission cable, and the like. The cable 9 is inserted.
[0024]
(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS.
In the first embodiment, the wall 4 is formed by closing the opening 3 of the side wall 2 at the embedding site of the hand hole 1, whereas in the second embodiment, the hand hole 1 is a hand hole. A main body 5 and a wall body 6 that is fastened to the handhole main body 5 by bolts 7 or the like to form a side wall.
The wall body 6 is molded in the factory, and simultaneously with the molding of the wall body 6, a plurality of socket holders 10 configured in the same manner as in the first embodiment are accurately positioned and fixed at required positions.
[0025]
When the wall body 6 is molded in a factory, for example, as shown in FIG. 9, a bottomed thin box-shaped mold 40 having a size corresponding to the wall body 6 is used. A plurality of tapered positioning protrusions 25 that constitute positioning means protrude from the mold surface that forms the bottom surface of the mold frame 40, and the socket holder 10 is positioned and held in each of the positioning protrusions 25. The
Thereafter, as shown in FIG. 10, the wall molding material is poured into the mold 40, and the wall molding material is solidified and demolded to mold the wall body 6. Simultaneously with the molding of the wall body 6. The plurality of socket holders 10 are accurately positioned and fixed at a required arrangement position.
[0026]
And in the burial site of the hand hole 1, the hand hole 1 is comprised by attaching the wall body 6 to the hand hole main body 5 with the volt | bolt 7 grade | etc.,.
Thereafter, in the same manner as in the first embodiment, the socket 30 configured in the same manner as in the first embodiment is inserted into each holding hole 11 of the plurality of socket holders 10 in the wall body 6 by a very simple operation. Can be assembled easily and accurately.
[0027]
【The invention's effect】
As described above, according to the first aspect of the present invention, the socket holder can be accurately positioned and fixed to the wall of the hand hole, and the socket is fitted into the holding hole of the socket holder. By a very simple operation, the socket can be easily and accurately assembled to the wall.
Furthermore, the deterioration of the appearance of the outer wall surface of the wall body, which is caused by the wall molding material flowing out of the mold and solidifying, can be eliminated.
According to the second aspect of the present invention, the socket holder is removably inserted into the fitting holding portion of the holder positioning jig that forms the positioning means, so that the socket can be inserted into the mold surface of the mold. The holder can be easily and accurately positioned and held, and the socket holder can be positioned quickly and easily.
According to the third aspect of the present invention, the tube connection socket can be easily formed by a very simple operation of fitting the tube connection socket into the holding hole of the socket holder fixed to the wall of the hand hole. And can be assembled accurately.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a tube connection socket according to a first embodiment of the present invention is assembled to a wall of a hand hole.
FIG. 2 is a perspective view showing a state where the tube connection socket is assembled to the wall of the hand hole.
FIG. 3 is a perspective view showing a state before the tube connecting socket is assembled to the wall of the hand hole.
FIG. 4 is a cross-sectional view showing a state in which a socket holder is attached to a mold for a wall of a hand hole via a holder positioning jig.
FIG. 5 is a cross-sectional view showing a state in which a mold is assembled in the opening of the side wall of the hand hole and a wall molding material is filled into the mold to mold a wall body.
FIG. 6 is an explanatory view showing a state in which the mold body and the holder positioning jig are removed after the wall body is formed in the opening of the side wall of the hand hole.
FIG. 7 is an explanatory view showing a state in which a socket is fitted and assembled in a socket holder fixed to the wall of the hand hole.
FIG. 8 is an explanatory view showing a state where a hand hole body and a wall body of a hand hole according to Embodiment 2 of the present invention are separated.
FIG. 9 is an explanatory view showing a state in which the socket holder is positioned and set on the mold with respect to the wall body.
FIG. 10 is an explanatory view showing a state in which a wall body is molded by pouring a wall molding material into the mold.
FIG. 11 is a cross-sectional view showing a state where a conventional tube connection socket is assembled to a wall of a hand hole.
FIG. 12 is an explanatory view showing a state where the tube connection socket is fixed to the opening of the side wall of the hand hole by a spacer and a fixing string.
FIG. 13 is a cross-sectional view showing a state in which a mold is assembled in the opening of the side wall of the hand hole and a wall molding material is filled into the mold to mold a wall body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hand hole 2 Side wall 3 Opening part 4 Wall body 5 Hand hole main body 6 Wall body 8 Tubing body 9 Wall molding material 10 Socket holder 11 Holding hole 20 Holder positioning jig (positioning means)
21 Fitting holding portion 22 Mounting portion 30 Tube connection socket 41, 45 Mold

Claims (3)

A method of assembling a tube connecting socket for assembling a socket having a connection hole for connecting a tube to a wall of a hand hole,
A socket holder having a cylindrical shape having a holding hole in which the socket is inserted and held is formed. On the mold surface of the mold for molding the wall body, the socket holder is placed by positioning means. Positioning and holding,
Thereafter, a wall forming material is filled into the mold to form a wall body, and at the same time, the socket holder is fixed to the wall body. 2. The method of assembling a tube connection socket according to claim 1, wherein the positioning means includes an attachment portion that is positioned and attached to the mold, and a fitting holding portion that projects from the mold surface of the mold. A tube connecting socket set comprising a holder positioning jig, wherein a socket holder is removably inserted into a holding hole of the fitting holding portion of the holder positioning jig. How to attach. An assembly structure of a socket for connecting a tubular body for assembling a socket having a connection hole for connecting the tubular body to a wall body of a hand hole,
In the socket holder that is positioned and fixed to the wall body when the wall body is molded by the wall molding material, a holding hole into which the socket is inserted is formed,
Between the socket holder and the socket, a latch that is elastically engaged to prevent the socket from coming off when the socket is inserted into the holding hole of the socket holder for a required length. An assembly structure of a socket for connecting a tubular body, characterized in that means is provided.

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