JPH10110465A - Sewer and sewer inside partition bearing plate member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewer having excellent cable storage function and to provide a sewer inside partition bearing plate member capable of making the existing sewer also as a sewer having cable storage function. SOLUTION: A sewer 1 is so constituted that a bearing plate member 3 having bearing side plate sections 6 on both sides in the longitudinal dirction is formed in separation from a sewer main body 2, the bearing plate member 3 is inserted along the direction of the axis of the sewer main body 2, and the inside of the sewer main body 2 is separately divided into a sewage flowing down section 7 and a cable storage section 8. A long partition plate member having an iverted T-shaped cross section is inserted and provided on the bearing plate member 3 in the pipe, and the cable storage section 8 is divided into both right and left rows. Water holes are bored in the bearing plate member 3 and partition plate member to facilitate the drain of sewage flowing in the cable storage section 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewer pipe having a function of accommodating a cable such as an optical fiber cable, and a sewer pipe supporting member used for the sewer pipe.

[0002]

2. Description of the Related Art In recent years, there has been a proposal to lay an information network using an optical fiber cable using a sewer pipe stretched underground. This proposal focuses on the fact that sewage sewers generally have a larger cross-sectional area than the cross-sectional area of water passage, and lays a cable pipe inside the sewage sewer and inserts an optical fiber cable into this cable pipe. And sewage sewers as information transmission channels.

For that purpose, for example, Japanese Utility Model Application Laid-Open No. 62-12518
In Japanese Patent Publication No. 3 (1993), there is disclosed a sewage pipe in which a partition is provided along the pipe axis direction on the inner side or outer side of the pipe top of the pipe, and the partition and the pipe top pipe wall of the pipe form a cable storage section. Proposed.

Further, the molten resin is extruded, and the interior is vertically separated by a partition wall along the pipe axis direction.
There has also been proposed a sewer pipe in which an optical fiber cable can be inserted into an upper passage in a sewer pipe main body and sewage can flow through the lower passage.

[0005]

However, when the sewage pipe disclosed in Japanese Utility Model Application Laid-Open No. 62-125183 is formed by extrusion molding, the flow of molten resin forming partition walls on the inner surface of the pipe during formation is adjusted. It is difficult, and there is a problem that a partition wall of a sewer pipe obtained may be bent or a cable storage part may be deformed and closed.

In the case of a sewage pipe in which the partition wall is integrally formed inside the sewage pipe main body, when the partition wall is buried underground, it is inserted into an earth passage from above the sewage pipe or an upper passage in the sewage pipe main body. Due to the weight of the optical fiber cable, stress concentration occurs at the left and right root portions of the partition wall, and there is a concern that cracks may occur from this portion due to long-term use.

SUMMARY OF THE INVENTION The present invention has been developed in view of the above points, and has as its object to solve the above problems and concerns and to provide a sewer pipe having an excellent cable storage function. Another object of the present invention is to provide a sewer pipe partition support plate member that can also be used as an existing sewer pipe having a cable storage function.

[0008]

The present invention has the following configuration in order to effectively achieve the above object. That is, the sewer pipe according to the first aspect of the present invention includes a support plate member having a support side plate portion formed so as to be abutted and held along the inner peripheral surface of the sewer pipe main body in the pipe axis direction of the sewer pipe main body. And the support plate member separates the inside of the sewer pipe main body into a lower part of the sewage flow and a cable storage part.

According to a second aspect of the present invention, there is provided a sewer pipe according to the present invention, wherein a support plate member formed so as to be in contact with and held along the inner peripheral surface of the sewer pipe main body is provided along the pipe axis direction of the sewer pipe main body. The lower part of the sewer pipe and the cable storage part are formed separately in the sewer pipe main body by the support plate member, and a long partition plate member is inserted into the cable storage part. The inside of the cable storage section is divided into a plurality by a plate member.

According to a third aspect of the present invention, there is provided the sewage pipe according to the second aspect, wherein a large number of grooves are formed along the pipe axis direction on the outer surface of the partition plate member on the cable storage portion side. It is a configuration to do.

According to a fourth aspect of the present invention, there is provided the drainage pipe according to the second aspect of the present invention, wherein a water passage hole is formed in the support plate member, and the drainage hole also penetrates the bottom of the partition plate member in contact with the support plate member. This is a configuration characterized by forming a water hole.

According to a fifth aspect of the present invention, the partition support plate member in the sewer pipe is held in contact with the support surface portion which can be inserted along the pipe axis direction of the sewer pipe main body and the inner peripheral surface of the sewer pipe main body. And supporting side plate portions formed on both sides of the supporting surface portion.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, an upright wall portion is formed along a longitudinal direction of the support surface portion.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an example of a sewer pipe 1 according to the present invention. The sewer pipe 1 includes a sewer pipe main body 2 and a support plate member 3. Sewage pipe main body 2
The support plate member 3 is formed by extruding a synthetic resin such as hard polyvinyl chloride.

The support plate member 3 (see FIGS. 1 and 3) has a long support surface 4 formed so as to be inserted into the upper part of the sewer pipe main body 2 so that the inside of the pipe can be vertically separated. It comprises a curved side support portion 6 formed on both sides of the surface portion 4 and held along the inner peripheral surface 5 of the drain pipe main body 2. In this example, each supporting side plate 6 is formed along the entire side end of the supporting surface 4. Of course, as shown in FIG. 8, the support plate member 3 in which the support side plate portions 6 are formed only at both ends of both side ends of the support surface portion 4 may be used. Further, it may be formed intermittently at appropriate positions on both side ends of the support surface portion 4.

As shown in FIG. 1, each of the support plate members 3 is inserted into the sewer pipe main body 2 so that the respective support side plate portions 6 are narrowed inward as shown in FIG. The support-side plate portion 6 is pressed along the inner peripheral surface 5 of the sewer pipe main body 2 to come into contact with the inner peripheral surface 5 of the sewer pipe main body 2 due to the resilient force that attempts to expand (restore) outward in the sewer pipe main body 2, and the entire support plate member 3 Is held in the sewer pipe main body 2. This allows the sewer pipe body 2
The inside is separated into upper and lower parts and is divided into a lower part of sewage flow 7 and a cable storage part 8.

It is to be noted that an adhesive may be applied to the outer surface of each supporting side plate portion 6 and attached to the inner peripheral surface 5 of the drain pipe main body 2. As shown in FIG. 9, the support plate member 3 may be formed by forming the support surface portion 4 horizontally and forming the same support side plate portions 6 on both sides as described above. Also in this case, by inserting the support side plate portions 6 on both sides of the support plate member 3 into the sewer pipe main body 2 so as to be constricted inward, the both support side plate portions 6 expand outward in the pipe, and The member 3 is held in contact with the inner peripheral surface 5 of the sewer pipe main body 2.

The sewage flows through the sewage lower part 7, and the optical fiber cable 9 is inserted into the cable storage part 8. The supporting surface portions 6 on both sides of the supporting plate member 3 support the inner peripheral surface 5 of the sewer pipe body 2 by pressing against the weight of the inserted optical fiber cable 9. It is possible to minimize the application of stress that adversely affects the boundary between the support side plate portion 4 and each support side plate portion 6.

FIG. 2 shows a sewer pipe 1a in which a long partition plate member 10 having an inverted T-shaped cross section is further inserted on the support plate member 3 of the sewer pipe 1 along the longitudinal direction of the support surface portion 4. It is. By inserting the partition plate member 10 into the cable storage section 8 in this manner, the interior can be further divided into two sections and the optical fiber cable 10 can be sectioned and inserted. In addition, the partition plate member 10 has a cross section inverted T as described above.
The shape is not limited to the letter shape, and may be any shape as long as the inside of the cable storage section 8 can be divided into a plurality.

Further, as shown in FIG. 4, a large number of grooves 11 are formed along the tube axis direction on the outer surface of the partition plate member 10 on the side of the cable housing portion so as to be in contact with the outer surface of the optical fiber cable 10 to be inserted. The contact area is reduced, the frictional resistance is reduced, and the optical fiber cable 10 can be inserted more smoothly.

As shown in FIGS. 5 and 7, a large number of water holes 13 are formed in the bottom portion 12 of the partition plate member 10, and a large number of water holes are also formed in the support surface portion 4 of the support plate member 3. By piercing the hole 14, even if sewage flows into the cable storage section 8, it is possible to quickly drain the water through the water holes 13 and 14.

Further, as shown in FIG. 6, by forming the upright wall portion 15 along the longitudinal direction on the support surface portion 4 of the support plate member 3, the cable can be stored without using the above-mentioned partition plate member 10 separately. The inside of the section 8 can be partitioned as described above. Of course, the standing wall portion 15 is not limited to the center of the cross section of the support surface portion 4 and may be rightward or leftward. Alternatively, two or more standing wall portions 15 may be formed to divide the cable storage section 8 into two or more sections. Further, the standing wall portion 15 may be formed intermittently in the longitudinal direction.

The shape of the sewer pipe main body is not limited to a circular cross-sectional outer diameter, but is generally an egg-shaped cross-sectional outer diameter used in the sewage field, a pipe having a rib structure on the outer surface, a pipe wall. Thickness is increased by providing a large number of small holes along the tube axis direction in the thick portion, and the thickness is increased.

The material of the sewer pipe main body includes polyvinyl chloride, polyethylene, polypropylene, polyphenylene sulfide and the like, and among them, polyvinyl chloride is preferable. When the material is polyvinyl chloride, the thickness of the drain pipe main body is the same as the JIS standard of the drain pipe polyvinyl chloride pipe.

[0025]

As described above, in the sewage pipe according to the first aspect of the present invention, the support pipe member is inserted into the sewage pipe main body to easily separate and form the sewage lower part and the cable storage part. can do. Even if the earth pressure against the sewer pipe main body or the weight of the optical fiber cable inserted into the cable storage part acts on the support plate member, these acting forces are applied to the support side plate parts on both sides of the support plate member. Since the inner peripheral surface is brought into surface contact with and held in contact with the inner peripheral surface, no crack is generated in the support plate member even when the sewer pipe is used for a long time.

In the sewage pipe according to the second aspect of the present invention, the inside of the sewage pipe main body can be easily separated and formed into the lower part of the sewage flow and the cable storage section, and the partition plate member is inserted into the cable storage section so that the cable can be inserted. The inside of the storage section can be further partitioned, and can be sorted and stored according to the type of optical fiber cable and the like.

In the sewage pipe according to the third aspect of the present invention, since a large number of grooves are formed on the cable storage portion side of the partition plate member, even when an optical fiber cable is inserted into the cable storage portion, it is guided by these grooves. In addition, the contact area between the optical fiber cable and the partition member is reduced, so that the optical fiber cable can be inserted more smoothly.

In the sewage pipe according to the fourth aspect of the present invention, a drain hole is formed in the support plate member for partitioning the inside of the sewage pipe body and the partition plate member for partitioning the cable storage portion, so that the sewage is increased due to increased water. Even if it enters the cable compartment,
The inflowed sewage can naturally and rapidly flow downward from the water hole together with the reduced water.

According to the fifth aspect of the present invention, the supporting plate member is inserted into the sewer main body so that the supporting side plate portions on both sides abut on the inner peripheral surface, The inside of the sewer pipe can be easily separated and formed into a cable storage part and a lower part of the sewer flow. Further, since it can be inserted into a ready-made sewage pipe, it is not necessary to form a dedicated sewage pipe for inserting and using an optical fiber cable, which is economical.

According to the sixth aspect of the present invention, in the partition support plate member in the sewer pipe of the present invention, the standing wall portion is formed along the longitudinal direction of the support surface portion, so that the partition wall is further placed on the support plate member inserted in the sewer pipe main body. Even if the cable storage part is not divided by inserting the partition plate member, the cable storage part can be divided into right and left only by the support plate member, and it is very economical and the construction of the sewer pipe which can insert the optical fiber cable. Time can also be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a drain according to the present invention.

FIG. 2 is a sectional view of another sewer pipe according to the present invention.

FIG. 3 is a sectional view of a support plate member according to the present invention.

FIG. 4 is a perspective view of a partition plate member having a groove according to the present invention.

FIG. 5 is a perspective view of a partition plate member having a water passage hole according to the present invention.

FIG. 6 is a sectional view of another support plate member according to the present invention.

FIG. 7 is a perspective view of a support plate member having a water passage hole according to the present invention.

FIG. 8 is an explanatory longitudinal sectional view showing a sewer pipe provided with another partition support plate member in the sewer pipe according to the present invention.

FIG. 9 is a sectional view of still another support plate member according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sewage pipe 2 Sewage pipe main body 3 Support plate member 4 Support surface part 5 Inner peripheral surface 6 Support side plate part 7 Lower sewer flow lower part 8 Cable storage part 9 Optical fiber cable 10 Partition plate member 11 Groove 12 Bottom part 13 Water passage hole 14 Water passage hole 15 Standing wall

Claims (6)

[Claims] 1. A support plate member having a supporting side plate portion formed to be abutted and held along an inner peripheral surface of a sewer pipe main body, is inserted along a pipe axis direction of the sewer pipe main body, and the support plate is provided. Depending on the member,
A sewer pipe characterized in that a sewer pipe main body is formed separately in a lower part of a sewer flow and a cable storage part. 2. A support plate member formed so as to be in contact with and held along the inner peripheral surface of the sewer pipe main body, is inserted along the pipe axis direction of the sewer pipe main body, and is supported by the support plate member. The inside of the sewer pipe body is formed separately in the lower part of the sewage flow and the cable storage part, and a long partition plate member is inserted into the cable storage part, and the inside of the cable storage part is divided into a plurality by the partition plate member. A sewer pipe characterized by being partitioned. 3. The sewer pipe according to claim 2, wherein a large number of grooves are formed along the pipe axis direction on the outer surface of the partition plate member on the cable storage portion side. 4. A water passage hole is formed in the support plate member, and a water passage hole is also formed in a bottom portion of the partition plate member in contact with the support plate member. Water pipe. 5. A supporting surface portion insertable along the pipe axis direction of the sewer pipe main body, and supporting side plate parts formed on both sides of the supporting surface part so as to be held in contact with an inner peripheral surface of the sewer pipe main body. A partition support plate member in a sewer pipe characterized by comprising: 6. The sewer pipe partition support plate member according to claim 5, wherein an upright wall portion is formed along a longitudinal direction of the support surface portion.