JPH0914538A - Method of connecting pipe of different kind for sewage system - Google Patents

Abstract

PURPOSE: To facilitate work in a narrow site by simplifying a method of connecting earthenware pipe and a vinyl chloride pipe. CONSTITUTION: A socket 4 with vinyl chloride-made short pipe is inserted to an earthenware pipe socket 3, and in the case of insertion of a vinyl chloride pipe 2 into this socket 4 with short pipe, an elastic sleeve 12 is externally fitted to a short pipe part 5 of the socket 4 with short pipe, with an end of this sleeve 12 brought into contact with a stopper 7 of the earthenware pipe socket 3, to provide a compression joint 14, used in a compression joint work method applied in connecting the fellow earthenware pipes, between these earthenware pipe socket 3 and the elastic sleeve 12, consequently connecting work of earthenware an pipe 1 with the vinyl chloride pipe 2 is facilitated, so as to be made convenient in a narrow site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining dissimilar pipes in sewage equipment, and more particularly to a method for joining a ceramic pipe and a PVC pipe.

[0002]

2. Description of the Related Art As is well known, ceramic pipes, reinforced concrete pipes (Hume pipes), PVC pipes, etc. are used as sewer pipes. Ceramic pipes are earthenware pipes and clay-based materials. Is molded and fired at a high temperature of 1000 ° C. or higher. The mortar coking method and the compression joint method with improved water stopping property are used for joining the pottery pipes. On the other hand, PVC pipes for sewer pipes are made by molding hard vinyl chloride with a pipe extruder, and the PVC pipes are joined by an adhesive joining method or a rubber ring joining method.

Therefore, in order to join a ceramic pipe and a PVC pipe, an adhesive is applied to the PVC pipe based on a semi-standardized dissimilar pipe joining method, and this is covered with dry sand, so-called sand. After gluing or performing embossing to make unevenness at the time of resin molding, a method is used in which mortar is filled and joined between the ceramic pipe and the PVC pipe such as sanding process. No construction method is adopted. This will be described in detail.

For example, as shown in FIG. 2, in order to join the ceramic pipe 1 and the PVC pipe 2 to each other, the ceramic pipe 1 having the receiving port 3 is inserted through the rubber ring receiving port 4 made of vinyl chloride. , PVC pipes are joined. This rubber tube socket 4 with a short pipe is formed by flange forming the open end of the short pipe portion 5, applying an adhesive to the outer periphery of the short pipe portion 5, and sprinkling it with dry sand to form a so-called sand. Attaching process 5a is performed, this short pipe portion 5 is inserted into the ceramic pipe receiving port 3, and the flange 6 is brought into contact with the stopper 7 of the receiving port 3, and then the ceramic pipe receiving port 3 and the short pipe portion 5 are connected. Fill mortar 8 between
Cure and seal and fix both. A rubber ring 9 is fitted in the groove of the rubber ring socket 10.

[0005] By the way, it is said that the construction of the joint is the key to the quality of the sewer pipe installation. Therefore, if the ceramic pipe 1 and the PVC pipe are joined by the joining method as described above,
There were the following problems.

[0006] That is, since this joining method requires a lot of repair work, the new PVC pipe 2 is joined to the existing pottery pipe 1, but first, the "bottom of the pottery pipe 3" is laid. After applying "Toro" 11, the short tube portion 5 is inserted so that there is no step on both tube bottoms. Next, the mortar 8 is filled, and the mortar 8 is finished by making it rise up at the open end of the ceramic pipe receiving port 3. Therefore, the construction of "laying Toro" 11 and the filling construction of mortar 8 are
There was a problem that it became extremely troublesome and it was a win-win situation, the reliability of the construction of the joint was impaired, and the quality of the sewer pipe installation was influenced. In addition, there is a problem that sanding and graining are troublesome, even though they are performed in a production factory.

[0007]

Therefore, the present invention has been made to solve the above problems, and the gist of the present invention is to insert a socket with a short pipe made of PVC into a ceramic socket In a method for joining different pipes of sewage equipment, which inserts a PVC pipe into the receiving portion of the receiving end with the short pipe, and joins the ceramic pipe and the PVC pipe,
Externally fitting a thick elastic sleeve to the short tube portion of the socket with the short tube,
The ends of the elastic sleeves are brought into contact with the stoppers of the porcelain tube receptacles, and the porcelain tube joints are compressed using compression joints between the porcelain tube receptacles and the elastic sleeves. It is a method of joining different types of sewage equipment, which is characterized by applying a joint method.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the embodiments shown in the accompanying drawings. FIG. 1 is a sectional view of an essential part of the product of the embodiment of the present invention. The same parts as those of the product by the conventional method shown in FIG. 2 are designated by the same reference numerals.

The rubber ring socket 4 with a short pipe used in this embodiment is
It is made of PVC by injection molding, and its size is 75 ~
It is suitable for 300 mmφ.

In FIG. 1, for joining a PVC pipe 2 to a ceramic pipe 1 attached to a main sewer pipe as a branch pipe, for example, a rubber ring receiving port 4 with a short pipe is interposed. A flange 6 is formed in the opening of the short tube portion 5 of the rubber ring receiving port 4 as in the conventional case. Short tube part 5 including this flange 6
Then, a thick elastic (rubber or polyurethane resin) sleeve 12 for a seal that fits the outer shape is closely fitted.
A joint groove 13 is formed on the outer surface of the elastic sleeve 12 substantially at the center in the axial direction, and a compression joint 14 used for joining the ceramic pipes is fitted to the joint groove 13.
The compression joint 14 may be fixed in advance to the inner surface of the ceramic pipe receptacle 3 with an adhesive.

Therefore, the pottery tube 1 and the rubber ring receptacle 4 with the short tube
For sealing and fixing with, use the stopper 7 of the ceramic tube receptacle 3
The end surface of the elastic sleeve 12 is abutted and sealed, and between the fitted elastic sleeve 12 and the inner surface of the ceramic tube receptacle 3 is sealed by the lip portion of the compression joint 14. Fix it. Therefore, the ceramic tube 1 and the rubber ring receptacle 4 with a short tube are completely sealed.
Since the compression joint 14 used for joining the ceramic pipes together is used, the rubber pipe ring receiving end 4 with the short pipe does not come out in the axial direction in the same manner as the conventional one.

In addition, the swing angle between the ceramic pipe 1 and the PVC pipe 2 (the pipe axis crossing angle of each pipe) is the swing angle of the compression ring 14 in addition to the swing angle of the rubber ring socket 10. Further expand by.

In the present invention, the rubber ring receiving port with a short pipe may be an adhesive receiving port with a short pipe, and the flange 6 is not always necessary.

[0014]

According to the present invention, the compression joint construction method, which is used for joining pottery pipes, is applied between the pottery pipe socket and the PVC pipe short pipe socket into which the PVC pipe is inserted. So
The PVC pipe and the ceramic pipe can be joined by the already established and highly reliable construction, and the external fitting of the thick elastic sleeve can be used as a substitute for mortar, so the construction is extremely simplified. This makes it convenient for construction on narrow land. Also,
Since the socket with the short pipe is not previously sanded or grained, the production cost of the socket with the short pipe can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 shows a product manufactured by a conventional method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Ceramic pipe, 2 ... PVC pipe, 4 ... Rubber ring socket with short pipe, 5 ... Short pipe part, 12 ... Elastic sleeve, 14 ... Compression joint

Claims (1)

[Claims] 1. A sewage for joining a ceramic pipe and a PVC pipe by inserting a PVC pipe-equipped socket end into the pottery pipe socket and inserting a PVC pipe into the socket portion of the socket-attached socket end. In the method of joining different types of equipment, a thick elastic sleeve is externally fitted to the short tube portion of the socket with short tube,
The ends of the elastic sleeves are brought into contact with the stoppers of the porcelain tube receptacles, and the porcelain tube joints are compressed using compression joints between the porcelain tube receptacles and the elastic sleeves. A different pipe joining method for sewage equipment, which is characterized by applying a joint method.