JP2000046274A - Flexible pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily avoid an obstacle, carry out the piping of synthetic resin pipes and its work execution at a low cost by providing with a pipe shaped part having a flexible part capable of bending and inflexibility part, and synthetic resin made joint parts capable of connecting to the synthetic resin pipe or a synthetic resin pipe joint on both end parts of the pipe shaped part. SOLUTION: A pipe shaped part 11 is provided with a flexible part and a straight pipe shaped inflexibility part 112, receiving port parts 12 (joint parts) made of synthetic resin such as polyvinyl chloride capable of synthetic resin pipe are arranged on both end parts of the pipe shaped part 11, and receiving port 121 is arranged on one end part. In the case where there is an obstacle between pipe end parts of the synthetic resin pipe for connecting the piping, a flexible part 111 of the pipe shaped part 11 is bent, and the receiving ports 121 arranged on both end part thereof and the pipe end part of the synthetic resin pipe are connected to each other by adhesive while bypassing the obstacle. It is thus possible to easily avoid the obstacle, and it is also possible to carry out piping and its work execution at low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible pipe joint used for piping and construction of a synthetic resin pipe.

[0002]

2. Description of the Related Art Synthetic resin pipes are widely used for water supply, sewerage, fire extinguishing equipment, power cable protection, and the like. In particular, polyvinyl chloride pipes are often used because of their cost performance. Generally, in piping and construction of a synthetic resin pipe, for example, a polyvinyl chloride pipe, a method of joining a pipe and a pipe joint with an adhesive is usually adopted. However, there are numerous obstacles at the plumbing location. For example, in the piping and construction behind the ceiling of a building, it is necessary to carry out the piping while avoiding the already constructed piping as well as the electrical piping, ducts, beams and the like. It is extremely difficult to deform not only a metal pipe but also a synthetic resin pipe due to its rigidity. Forcibly deforming the pipe may lead to damage of the pipe, and a water pipe may cause a water leakage accident.

Conventionally, in order to avoid these obstacles,
As shown in FIG. 5, a plurality of elbows c and short pipes d are formed between the ends of the synthetic resin pipes b to be connected so as to bypass the obstacle a. Although the method of connection is adopted by using, it requires a large amount of time and labor for the construction because the number of connection parts increases, and the number of elbows c used increases, and the burden of material costs also increases. There is a problem.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems, provides a flexible pipe joint which can easily avoid obstacles, and can inexpensively pipe and construct a synthetic resin pipe. It was made for the purpose of providing.

[0005]

According to the present invention, there is provided a tubular portion having a flexible portion which can be bent and a rigid portion, and both ends of the tubular portion can be connected to a synthetic resin pipe or a synthetic resin pipe joint. This is a flexible pipe joint provided with a synthetic resin joint part.

In the present invention, the material of the tubular portion may be a metal material such as stainless steel or a synthetic resin such as polyvinyl chloride, but is a material that does not break even if bent several times. There is a need.

In the present invention, the number of bendable flexible portions of the tubular portion needs to be one or more, but is preferably one to four. If there is no flexible portion, the tubular body cannot be bent, and the number of flexible portions may exceed five, or it is possible to eliminate the rigid portion and make all the flexible portions. This increases the manufacturing cost.

In the present invention, the joint may be a receiving portion or an insertion portion. In the case of a receiving part, a synthetic resin pipe is connected, and in the case of an insertion part, it is connected to a synthetic resin pipe joint. As these connection methods, a connection method using an adhesive that can be connected simply by applying an adhesive to both and inserting one into the other is preferable, but a screw connection method is also possible.

[0009]

The flexible pipe joint of the present invention has a bendable flexible portion,
A tubular portion having a rigid portion, at both ends of the tubular portion,
By providing a synthetic resin joint that can be connected to a synthetic resin pipe or a synthetic resin pipe joint, even if there is an obstacle between the ends of the synthetic resin pipe to be connected to the pipe,
By bending the flexible portion of the tubular portion, it is possible to easily connect the receiving ports at both ends and the tube end of the synthetic resin tube while bypassing the obstacle, and to perform piping and construction at low cost.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are explanatory views of an example of a flexible pipe joint according to the present invention, in which FIG. 1A is a perspective view, FIG. 1B is a sectional view thereof, and FIG. As shown in FIG. 1, the flexible pipe joint 1 of this example includes a tubular portion 11 and receiving portions 12 provided at both ends of the tubular portion 11.

The tubular portion 11 is made of a thin metal material such as stainless steel, and the tube wall is bent along the axial direction so as to be bent in an uneven manner so that a bent portion 111a along the circumferential direction is formed on the inner and outer surfaces. The flexible portions 111 appearing and the rigid portions 112 each having a straight tubular shape are alternately provided. Tubular part 1
Flexible portions 111 are provided at both ends of the first member 1.

At both ends of the tubular portion 11, there are provided receiving portions (joint portions) 12 made of synthetic resin such as polyvinyl chloride which can be connected to a synthetic resin tube. At one end of the socket 12,
A receiving port 121 is provided, and the other end is inserted through the end of the tubular portion 11 with the packing 123 interposed therebetween.
A bent portion formed at the end of the tubular portion 11 is connected to a cross section formed along the circumferential direction on the inner surface of the substantially central portion so as to be locked. A reinforcing ring 122 made of a metal material is covered on the outer periphery of the other end of the socket 12.

FIGS. 2A and 2B are explanatory views of another example of the flexible pipe joint of the present invention. FIG. 2A is a perspective view and FIG. 2B is a sectional view. As shown in FIG. 2, the flexible pipe joint 2 of this example includes a tubular portion 21 and insertion portions 2 provided at both ends of the tubular portion 21.
Consists of two.

The tubular portion 21 has the same structure as that described with reference to FIG. 1. Both ends of the tubular portion 41 are made of synthetic resin such as polyvinyl chloride which can be connected to a synthetic resin tube. The insertion portion (joint portion) 22 is provided. A receiving port 221 is provided at one end of the insertion port 22, and an end of the tubular section 21 is inserted into the other end, and is formed at an end face of the one end side at an end of the tubular section 21. The bent portions are connected so as to be locked.

FIGS. 3A and 3B are explanatory views of another further example of the flexible pipe joint according to the present invention, wherein FIG. 3A is a perspective view and FIG. 3B is a sectional view. As shown in FIG. 3, the flexible pipe joint 3 of this example
Consists of a tubular portion 31, receiving portions (joint portions) 32 and insertion portions (joint portions) 33 provided at both ends of the tubular portion 31. The tubular portion 31 has the same structure as that described with reference to FIG. 1. Both ends of the tubular portion 31 are made of a synthetic resin such as polyvinyl chloride which can be connected to a synthetic resin tube. A receiving port 32 and an insertion port 33 are provided.

A receiving port 321 is provided in the receiving section 32, and an end of the tubular section 31 is inserted into the other end, and an end face on one end side thereof is connected to an end of the tubular section 31. The formed bent portions are connected so as to be locked. Insertion part 33
Is provided with an insertion port 331 at one end thereof, and an end of the tubular portion 31 is inserted at the other end thereof.
The tubular portions 31 are connected so that the bent portions formed at the ends thereof are locked.

Hereinafter, one use state of the flexible pipe joint 11 shown in FIG. 1 will be described with reference to FIG. When there is an obstacle 5 between pipe ends of the synthetic resin pipes 4 and 4 to be connected to the pipe, FIG.
The flexible pipe joint 11 shown in FIG. 3 is used to bend the flexible section 111 of the tubular section 11 so as to bypass the obstacle 5 and receive the receiving ports 121 at the both ends and the synthetic resin pipe 4.
4 is connected via an adhesive.

[0018]

Since the flexible pipe joint of the present invention is as described above, even if there is an obstacle between the ends of the synthetic resin pipe to be connected, the obstacle can be easily avoided. In addition, piping and construction can be performed at low cost.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an example of a flexible pipe joint of the present invention;
(A) is its perspective view, (b) is its cross-sectional view, and (c) is its main part enlarged cross-sectional view.

FIG. 2 is a front view illustrating a usage state of the flexible pipe joint shown in FIG. 1;

FIG. 3 is an explanatory view of another example of the flexible pipe joint of the present invention;
(A) is a perspective view thereof, and (b) is a sectional view thereof.

FIG. 4 is a front view for explaining a use state of the flexible pipe joint shown in FIG. 1;

FIG. 5 is a front view for explaining a construction state of a conventional so-called elbow return.

[Explanation of symbols]

 1, 2, 3 Flexible pipe joint 11, 31, Tubular part 12, 32 Receiving part (joint part) 22, 33 Insertion part (joint part) 111, 211, 311 Flexible part 112, 212, 312 Rigid part 121 , 321 receiving opening 221,331 insertion opening

Claims (1)

[Claims] A tubular portion having a flexible portion that can be bent and a rigid portion, and a joint portion made of a synthetic resin connectable to a synthetic resin pipe or a synthetic resin pipe joint is provided at both ends of the tubular portion. A flexible pipe joint characterized by being provided.