JPS5911275Y2 - pipe fittings - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pipe joint that connects pipes, or pipes and meters, in a piping structure that constitutes a flow path for gas or the like.

In a piping structure, there are cases in which the flow paths to be connected are orthogonal to each other, and moreover, these flow paths are not on the same plane.

FIG. 1 shows a typical example of flow path connections in such a case.

That is, this is a case where the gas flow pipes 6 and 7 and the gas meter 1 are connected, and the direction of the flow path at the outlet and inlet of the gas meter 1 and the direction of the flow path in the flow path pipes 6 and 7 are are orthogonal to each other, and the flow paths to be connected are
Not on the same plane.

To connect this flow path, straight pipe joints 2, 4, 9, 11
, elbow joints 3, 5, 8.10 are required, and the number of connecting members and joints is large, so the possibility of leakage increases accordingly, and it is difficult to match the dimensions of each part and connect them. takes a very long time.

An object of the present invention is to provide a pipe joint that can easily and reliably connect such flow paths, has high reliability against leakage, and can shorten the time required for connection.

The present invention will be explained below with reference to illustrated embodiments.

In FIG. 2, reference numeral 20 indicates an example of a pipe joint according to the present invention.

The pipe joint 20 is integrally shaped, and this integral shape is one of the characteristics of the pipe joint according to the present invention.

The pipe joint 20 is bent from one end to the other end as described below.

That is, if the tube at one end is oriented in the X direction, the center of the tube is oriented in the Y direction, and at the other end the tube is oriented in the Z direction.

And the way it bends is not a sudden bend, but a smooth bend.

However, the fact that the center of the tube faces the Y direction means that
It is a feature of the illustrated embodiment rather than a feature of the pipe coupling according to the invention.

An important feature of the present invention is that in this case, one end faces the X direction and the other end faces the Z direction.

Therefore, if the bent shape of the pipe joint according to the present invention is generally expressed, it curves smoothly from one end to the center, and the other end is perpendicular to the plane determined by the one end and the center. It can be said that it curves smoothly from the center so that it forms the following.

Now, in the example shown in FIG. 2, one end portion of the pipe joint 20 is a threaded portion 21, and the other end portion 23 has a packing attachment structure.

Of course, depending on the purpose of use of the pipe joint, both ends may be threaded.

In this embodiment, a cap nut 40 as shown in FIG. 3 can be passed from the threaded portion 21 side to the other end portion 23 side, and the connection and fixation at the packing attachment portion is performed using this cap nut 40. This is accomplished by a cap nut 40 and a flange at the other end 23.

FIG. 4 shows a case where the flow path connection as shown in FIG. 1 is performed using the pipe joint according to the present invention.

In the figure, the reference numeral 20 is the pipe joint shown in FIG.
A packing attachment part is arranged at the connection part with the gas meter 1, and this part is connected and fixed with a cap nut 40.

On the other hand, the threaded portion is joined to the pipe 7 by a straight pipe joint 13.

In addition, the part continuing from the joint part 21 is nut-shaped, and when joining the pipe joint 20 and the straight pipe joint 13, the pipe joint 20 can be fixed with a spanner.

This nut portion is tapered so as to become slightly thicker toward the threaded portion, so that the spanner can be easily held in the nut portion from the side of the center portion of the pipe joint.

In FIG. 4, reference numeral 30 is another pipe joint that connects the gas meter 1 and the pipe 6.

The difference between the pipe joint 20 and the pipe joint 40 is that the bending directions of the threaded portions are opposite to each other.

As described above, according to the pipe joint of the present invention, the flow path connection becomes easy and reliable, and the number of joints is reduced compared to the conventional connection method, so the reliability against leakage is increased and the cost is reduced. It becomes possible to reduce the time required for connection and connection.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a typical example of a conventionally known flow path connection, FIG. 2 is an explanatory perspective view showing an embodiment of the present invention, and FIG. FIG. 4 is a perspective view showing a cap nut that cooperates with the embodiment shown in the figure. FIG. 20... Pipe joint, 40... Cap nut, 21...
Threaded part.

Claims (1)

[Claims for Utility Model Registration] 1. A product that is integrally shaped, curves smoothly from one end to the center, and has the other end perpendicular to the plane defined by the one end and the center. A pipe joint having a smoothly curved shape from the center portion to the other end. 2 One end has a male thread, the other end has a flange for abutting against the packing, a cap nut is passed from the one end to the other end, and the connection at the other end is The pipe joint according to claim 1, characterized in that the pipe joint is provided by the cap nut.