JP2005030017A - Catch basin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a catch basin of a three-layer structure capable of effectively utilizing a scrap and a deteriorated and used waste material generated when injectively molding or extrusively forming a resin molding. <P>SOLUTION: This catch basin forms a socket for opening an upper part of a cylindrical basin body 11, and inserting and connecting a lower rend part of a pipe 2 for an inspection cleaning port in an upper end opening part; forms an invert 12 in a little upper position from a lower end part of the basin body 11; forms a connecting part 13 of an outflow pipe 3 in a side wall lower part of the basin body 11 by communicating with the invert 12; and projects a support piece 120 for installing a bottom plate 14 on an under surface of the invert 12. An intermediate layer 1a of the basin body 11 is formed of a resin raw material including a regenerated raw material provided by crushing the scrap and the waste material of the resin molding, and the inner-outer layers are formed of an unused resin raw material including no regenerated raw material. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage basin having a three-layer structure in which an intermediate layer is formed of a resin raw material containing a regenerated raw material and the inner and outer layers are formed of a resin raw material containing no reclaimed raw material.
[0002]
[Prior art]
When injection molding of housing products such as household electrical appliances made of resin raw materials and pipe joints, unnecessary parts such as gates and scrap are generated, or when synthetic resin pipes are continuously extruded, the molding conditions are A large amount of scrap may be generated in the initial stage until stabilization. In addition, when renewing an aged synthetic resin pipe that has passed its service life, a large amount of used waste material may be generated. Disposal of such scrap and used material is a problem. It has become.
[0003]
[Problems to be solved by the invention]
Conventionally, scraps of plastic molded products and used waste materials have been incinerated or disposed of in the ground. However, when plastic molded products are incinerated, dioxins are generated. The problem of polluting the environment is occurring. In addition, when embedding scraps and scrap resin molded products in the ground, not only is the location of the embedding a problem, but resin molded products are not decomposed or corroded over a long period of time. Problems have been raised. Therefore, in recent years, three-layer pipes have been proposed in which scraps of resin molded products and used waste materials are pulverized and used as recycled materials, but the response has not been sufficient (for example, , See Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-41362
The present invention focuses on such a problem, and provides a three-layer drainage basin capable of effectively utilizing scrap generated when resin molded products are injection-molded or extruded, and used waste materials. The purpose is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the drainage basin of the present invention is formed with a receiving port in which the upper part of the cylindrical casket body opens and the lower end of the inspection cleaning pipe is inserted and connected to the upper end opening. Also, an invert is formed slightly above the lower end of the rod main body and communicates with the invert to form a connecting portion for an outflow pipe at the lower portion of the side wall of the rod main body. In the projecting drainage basin, the intermediate layer of the basin body is formed of a resin raw material containing a recycled raw material obtained by pulverizing scraps and waste materials of a resin molded product, and the inner and outer layers are made of a recycled raw material. It is formed of an unused resin raw material that does not contain.
[0007]
The drainage slag of the present invention is characterized in that the scraps of resin molded products and the recycled raw materials of waste materials are 10 to 80% by weight of the total resin raw materials constituting the slag body.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a drainage basin showing an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a use state of the drainage basin of the present invention, and in FIG. The working pipe, 3 is an outflow pipe, 4 is a branch joint, and 5 is an inflow pipe.
[0009]
The cylindrical main body 11 is open at the top and has a receiving opening formed at the upper end opening. The lower end of the inspection cleaning pipe 2 can be inserted and connected to the receiving opening. Further, an invert 12 is formed at a position slightly above the lower end of the rod main body 11, and a connecting portion 13 of the outflow pipe 3 is formed at the lower portion of the side wall of the rod main body 11 in communication with the invert 12. Yes. A central portion of the invert 12 is recessed in a dish shape, and a drainage flow path is formed which is inclined with a downward gradient from the center of the concave curved surface and communicates with the inner peripheral lower surface of the connection portion 13. .
[0010]
When the inner diameter of the collar body 11 is 150 to 300 mm, the height dimension difference H between the outer peripheral edge of the invert 12 and the inner peripheral lower surface of the connecting portion 13 is preferably set to 20 to 50 mm. When the height dimensional difference H is less than 20 mm, the slope of the invert 12 becomes gentle, so that the scavenging property is deteriorated, and dirt and the like are easily deposited. Further, when connecting the branch joint 4 to the lower portion of the side wall of the saddle body 11, the position of the connection hole needs to be higher than the upper surface of the invert 12, so if the height difference H exceeds 50 mm, the inflow The restriction that the connection position of the pipe 5 cannot be lowered occurs.
[0011]
Further, the eaves body 11 is supported by the bottom plate 14, and a support piece 120 attached to the bottom plate 14 is provided in a ring shape at the center of the lower surface of the invert 12. That is, the lower end portion of the support piece 120 is set to be flush with the lower end portion of the main body 11 so that the support piece 120 is detachably mounted on the annular protrusion 140 provided on the upper surface of the bottom plate 14. It has become.
[0012]
The coffin main body 11 is manufactured integrally by injection molding, and the intermediate layer 1a of the coffin main body 11 is formed of a resin raw material containing recycled raw materials obtained by pulverizing scraps and waste materials of various resin molded products. At the same time, the inner and outer surfaces of the intermediate layer 1a are covered with an inner layer and an outer layer made of an unused resin raw material that does not contain a recycled raw material.
[0013]
Moreover, the inspection cleaning pipe 2 connected to the upper end opening of the main body 11 is manufactured by extrusion molding. Like the main body 11, scraps and waste materials of various resin molded products are crushed. The intermediate layer 2a of the inspection cleaning pipe 2 is formed with the resin raw material containing the obtained recycled raw material, and the inner and outer layers of the intermediate layer 2a are made of an unused resin raw material containing no recycled raw material. Covered with.
[0014]
Recycled raw materials for forming the main body 11 and the inspection cleaning pipe 2 are resin molded products made of polyvinyl chloride, polyethylene, polypropylene, etc., for example, plastic bottles, waste materials of building materials such as housings and pipe joints of household appliances, Unnecessary members such as gates generated during injection molding and those obtained by pulverizing scrap can be used. As the resin raw material that constitutes the intermediate layer 1a, 2a of the bag main body 11 and the inspection cleaning pipe 2, it is possible to use only the regenerated raw material or a mixture obtained by slightly mixing an unused resin raw material. In addition, as the resin raw material constituting the inner layer and the outer layer, the same kind of resin raw material that is compatible with the regenerating raw material constituting the intermediate layer 1a, 2a and not containing any reclaimed raw material such as PVC, polyethylene, polypropylene, etc. The resin raw material used can be used.
[0015]
As described above, various resin raw materials can be used as the intermediate layer 1a, 2a of the bag main body 11 or the inspection cleaning pipe 2 and the inner layer and the outer layer covering the inner and outer surfaces of the intermediate layer 1a, 2a. Considering the current situation in which a large amount of used waste materials and scrap are generated, recycled raw materials made of hard vinyl chloride resin can be suitably used for the intermediate layers 1a and 2a, and the inner and outer surfaces of the intermediate layers 1a and 2a are covered. An unused hard vinyl chloride resin that does not contain recycled raw materials in the inner layer and the outer layer can be suitably used.
[0016]
It is preferable that the ratio of the recycled raw material to the entire resin raw material constituting the bag main body 11 and the inspection cleaning pipe 2 is 10 to 80% by weight. If the ratio of the recycled resin is less than 10% by weight, a sufficient effect cannot be expected in terms of effective use of waste materials and scrap. Conversely, if the ratio exceeds 80% by weight, the inner layer is made of a resin raw material not containing the recycled material. In addition, since the outer layer becomes thin, a situation occurs in which the recycled raw material constituting the intermediate layer partially protrudes from the inner layer and the outer layer to impair the appearance. Incidentally, in the drainage basin of size 150-300, the thickness of the side wall of the casket body 1 is about 5-15 mm.
[0017]
On the other hand, the bottom plate 14 attached to the lower part of the bag main body 11 is a recycled material such as polyvinyl chloride, polyethylene, polypropylene, etc., similar to the recycled material constituting the bag main body 11 and the intermediate layers 1a, 2a of the inspection cleaning pipe 2. It is molded with. Since the bottom plate 14 is not required to be so beautiful and strong, the proportion of the recycled material in the entire product is not particularly limited, and the bottom plate 14 can be formed only from the recycled material.
[0018]
The drainage basin of the present invention is embedded in the ground as shown in a sectional view in FIG. 2, and the drainage basin 1 is installed at a predetermined position in the excavated groove, and a bottom plate is provided at the lower part of the basin body 11. 14 is set in a stable state. Therefore, the inspection / cleaning pipe 2 is connected to the upper end opening of the main body 11 and the upper end thereof is raised to a position near the ground surface, and the lid 6 is detachably mounted. Usually, since the drainage basin 1 is buried at a depth of 800 to 1000 mm from the ground surface, the inspection cleaning pipe 2 having a length corresponding to the embedding depth is selectively used.
[0019]
Next, the outflow pipe 3 is connected to a connecting portion 13 provided at the lower side of the side wall of the main body 11, and the inflow pipe 5 is connected to the main body 11 or the inspection cleaning pipe 2 according to the connection position and connection direction of the inflow pipe 5. Connect. At this time, a connecting hole for connecting the branch joint 4 is formed at an appropriate side wall of the bag main body 11 or the inspection cleaning pipe 2, and then a saddle of the branch joint 4 is bonded and joined to the branch joint 4. 5 is connected.
[0020]
【The invention's effect】
As described above in detail, the drainage basin of the present invention can effectively utilize scrap generated when injection molding or extrusion molding of resin molded products and waste materials that have been used after aging. The place to prevent and contribute to resource saving is extremely large.
[Brief description of the drawings]
FIG. 1 is a side view of a drainage basin showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a use state of the drainage basin of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drainage basin 11 桝 body 12 Invert 13 Connection part 14 Bottom plate 1a Middle layer 2 Inspection cleaning pipe 2a Middle layer 3 Outflow pipe 4 Branch joint 5 Inflow pipe 6 Lid

Claims (2)

The upper part of the cylindrical bowl body is opened, and a receiving port is formed in the upper end opening to which the lower end of the inspection cleaning pipe is inserted and connected, and an invert is formed slightly above the lower end of the bowl body. And a drainage basin in which a connecting portion of an outflow pipe is formed at a lower portion of the side wall of the culvert body in communication with the invert, and a support piece is provided on the bottom surface of the invert so that a bottom plate is mounted. The intermediate layer is formed of resin raw materials containing recycled raw materials obtained by crushing scraps and waste materials of resin molded products, and the inner and outer layers are formed of unused resin raw materials that do not contain recycled raw materials. Characteristic drainage basin. The drainage dredge according to claim 1, wherein the recycled raw material for scraps of resin molded products and waste materials is 10 to 80% by weight of the entire resin raw material constituting the dredger body.

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