JPH0953773A - Spherical joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spherical joint whose angle can be easily changed according to a laying place by providing two parts of an inner sphere and an outer sphere, and constituting the inner sphere in a condition capable of rotating on the inside of the outer sphere. SOLUTION: When piping 1 and 1 such as a gas pipe and a service water pipe are connected to each other, first of all, a cover 6 of a spherical joint is inserted between one piping 1 and an inner sphere 4 of a spherical joint outside which packing 5 is arranged, and a screw 2 of the piping 1 and a piping fixing screw 3 of the inner sphere 4 of the spherical joint are screw-fitted to each other. Next, an outer sphere assembling screw 7 of the cover 6 of the spherical joint and an outer sphere assembling screw 9 of an outer sphere main body 8 of the spherical joint are screw-fitted to each other. On the other hand, the other piping 1 is screw-fitted by a piping fixing screw 10 of the outer sphere main body 8 of the spherical joint and the screw 2 of the piping 1. When they are laid in the soil, preferably, an angle of the piping 1 and 1 is set at an obtuse angle through the spherical joint, and since the piping 1 and 1 extend and contract by changing an angle of the spherical joint by receiving vibration and force from outside, slipping-out of the piping 1 and 1 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for places where structures (pile, etc.), structures (pillars, columns, beams, etc.) and buried objects (water pipes, gas pipes, other transportation pipes, etc.) are laid. In addition, it relates to a joint in which the angle between the pipes can be changed depending on the situation at the site at the time of facility. On the other hand, for external forces caused by natural disasters (earthquakes, crustal movements, etc.), the inner and outer spheres of the spherical joint shift and the angle between the pipes is changed to expand and contract the row of pipes from the perspective of the entire pipe It is possible to prevent disconnection and damage to the entire pipe.

[0002]

2. Description of the Related Art Conventional pipe joints such as gas pipes and water pipes are connected in a straight line or at a right angle, so that the places to be laid are limited, or when the force from the outside such as an earthquake is received. The force was concentrated on the part and the partial damage of the joint was remarkable.

[0003]

The shape of conventional pipe joints such as water pipes and gas pipes has been mainly straight or right-angled. Therefore, when laying the pipes, it is not possible to freely arrange the pipes, and the pipes are wasted, and the construction period is extended due to the construction of the wasteful parts. Further, when vibration or force is applied to the pipe, the vibration or force concentrates on the joint portion, so that the joint may come off.

[0004]

[Means for Solving the Problems]

[0005]

The spherical joint according to the present invention comprises two parts, an inner sphere and an outer sphere. Since the inner sphere is assembled to be rotatable inside the outer sphere, the angle of the pipe can be freely changed.

[0006]

Embodiments of the present invention will be described below. FIG. 1 is a block diagram of a spherical joint of the present invention. Reference numeral 1 is a pipe such as a gas pipe or a water pipe. 4 is an inner ball of a spherical joint, and 5 packing is attached to the outside. The outer sphere consists of a lid of 6 spherical joints and an outer sphere body of 8 spherical joints. 1 pipe and 4
Before fixing the inner sphere of the spherical joint of, the lid of the spherical joint of 6 is put between the pipe of 1 and the inner sphere of the spherical joint of 4.
Then, the pipe 1 is fixed with the screw 2 and the pipe fixing screw 3. Next, the lid of the spherical joint 7 and the outer sphere body of the spherical joint 8 are fixed by the outer sphere assembly screw 7 and the outer sphere assembly screw 9. Then, the other pipe is fixed with 10 pipe fixing screws and 2 pipe fixing screws. FIG. 2 is a diagram in which two pipes are connected by the spherical joint of the present invention. FIG.
It is a figure when the angle of the piping of a book is changed using the spherical joint of this invention. As shown in FIG. 3, by the packing 5 attached to the inner sphere of the spherical joint, even if the angle of the spherical joint is changed, the substance passing through the pipe does not leak. Moreover, since the inner diameter of the outer sphere of the spherical joint is slightly smaller than the outer diameter of the packing of 5, the packing of 5 is compressed by the inner surface of the outer sphere of the spherical joint to exert the effect as a packing. .

[0007]

【The invention's effect】

(1) As shown in FIG. 4, when laying a pipe from point A to point B, conventionally it had to go through point C, but if the spherical joint of the present invention is used, it does not go through point C. The pipe can be turned directly from point A to point B. That is, when laying the pipe, there is a large degree of freedom in handling the pipe. (2) When laying in the soil as shown in FIG. 5, by preliminarily sandwiching the spherical joint and making the angle between the pipes obtuse,
Even if the land on which the row of pipes using the spherical joint of the present invention is laid is deformed due to an earthquake or the passage of a vehicle, the pipe row including the spherical joint receives the vibration and force from the outside and the spherical joint Prevents the pipe from coming off the spherical joint by changing the angle and expanding and contracting the entire pipe.

[Brief description of drawings]

FIG. 1 is a component configuration diagram of the present invention.

FIG. 2 is a view showing a state where the spherical joint of the present invention is assembled.

FIG. 3 is a cross-sectional view when the angle of the pipe is changed.

FIG. 4 is a diagram showing the effect of the present invention.

FIG. 5 is a diagram showing an effect of the present invention.

[Explanation of symbols]

 1 Piping 2 Piping Fixing Screw 3 Piping Inner Ball Piping Fixing Screw 4 Inner Sphere of Spherical Joint 5 Packing 6 Cover of Spherical Joint 7 Outer Sphere Assembly Screw of Spherical Joint 8 Outer Sphere of Spherical Joint 9 Outer Sphere of Spherical Joint Assembly screw 10 Pipe fixing screw for outer bulb of spherical joint 11 Spherical joint of the present invention 12 Conventional joint 13 Piping laying place

Claims (3)

[Claims] 1. A spherical joint for pipes such as gas pipes and water pipes whose angle can be easily changed according to the place to be laid. 2. When a pipe such as a gas pipe or a water pipe receives a force from the outside, the entire pipe is expanded or contracted by changing the angle between the gas pipe or the water pipe on both sides to disconnect the connection. A spherical joint that can prevent 3. A spherical joint in which gas and liquid do not leak because the inner and outer spheres have a sealed structure due to internal pressure.