JPS592381Y2 - Mutual fixings for built-in pipes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mutual fixing device for fixing the ends of internal and external tubes to each other.

When shipping several types of pipes with different diameters, the ship's hold space can be used effectively by incorporating multiple pipes.

In order to mutually support the tubes assembled in this manner, conventionally, a plurality of spacers are interposed in the circumferential direction between the inner and outer tubes.

However, support by spacers alone cannot prevent the relative movement of the inner and outer tubes in the axial direction, and there is a problem in that handling such as loading and unloading the built-in tubes into and out of the ship's hold is unstable.

The present invention aims to solve the above-mentioned problems and to reliably prevent axial and radial movement of the built-in tube.

In order to achieve this objective distantly, the present invention includes a plurality of mounting arms arranged radially and fixed to each other, and an elastic mounting member whose one end is inserted into a hole in each mounting arm and fixed to the mounting arm with a nut. and an elastic body provided at the other end of each elastic body attachment member.

Therefore, if the elastic body is interposed between the outer tube and the inner tube and the elastic body mounting member is fixed to the attachment arm with a nut, the attachment arm will come into contact with the end surface of the base tube, and the elastic body will be placed on the outside. By engaging with the inner periphery of the tube and the outer periphery of the inner tube, it is possible to prevent relative movement of the base tube in the axial direction, and the elastic body also acts as a spacer to prevent relative movement of the base tube in the radial direction. Also, by using an elastic body, damage to the inner surface of the tube can be prevented.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

To explain the case of triple assembling, Ml is a large diameter pipe that is assembled with each other, M2 is a medium diameter pipe, and M3 is a small diameter pipe.

The base pipes M1 to M3 are made of cast iron pipes, each having a flange n at the opening edge of a socket m at one end, and a step l on the outer surface of the socket m.

1 are four mounting arms constituting a mutual fixing device 2;
They are arranged radially at equal angular intervals and fixed to each other at the radial center.

The number of attachment arms 1 may be more than this or two.

Each mounting arm 1 is made of a channel-shaped member, and two mounting holes 3 are provided in the intermediate plate portion 1a of the mounting arm 1, spaced apart from each other in the longitudinal direction.

One end of an elastic body mounting member 4 is inserted into each mounting hole 3, and a nut 6 that engages with the mounting hole 3 is screwed onto the male threaded portion 4a of the one end.

The elastic body attachment member 4 is made of a block-shaped elastic body 5 made of rubber or the like, and the elastic body 5 is attached thereto. It is formed on the shaft portion 4b.

According to the mutual fixing device 2 having such a configuration, each mounting arm 1 is brought into contact with the end face of the assembled base tubes M1 to M3 in the radial direction, and the two elastic bodies 5 of each mounting arm 1 are brought into contact with each other in the radial direction. Between the inner surface of the socket m of the large diameter pipe M1 and the outer surface of the medium diameter pipe M2, respectively,
and disposed between the inner surface of the socket m of the medium diameter pipe M2 and the outer surface of the small diameter pipe M3.

Then, by tightening the nut 6, the elastic body 5 is drawn until it engages with the flange n, and the tapered shaft portion 4b of the elastic body mounting member 4 is press-fitted into the elastic body 5.

The mutual fixing device 2 is installed together with the work of assembling the pipes M1 to M3 as follows.

For example, each elastic body mounting member 4 is removed from the mounting arm 1 and temporarily fixed to the inner surface of the socket m of the large diameter pipe M1, the inner surface of the medium diameter pipe M2, etc. using adhesive tape or the like.

By sequentially inserting the medium diameter pipe M2 and the small diameter pipe M3 into the large diameter pipe M1, the elastic body 5 can be placed into the socket m without the flange n becoming an obstacle.

When the mutual fixture 2 is installed in this way, the mounting arm 1 comes into contact across the end faces of the base pipes M1 to M3, and the large diameter pipe M1
The flange n of the medium diameter pipe M2 and the step l on the outer surface of the medium diameter pipe M2, and the flange n of the medium diameter pipe M2 and the step l on the outer surface of the small diameter pipe M3.
Since the elastic bodies 5 are respectively engaged with the base tubes M1 to M3, relative movement in the axial direction is prevented via the attachment arms 1.

The elastic body mounting member 4 may have one end embedded in the elastic body 5 in a fixed state as shown in FIG. 4, or it may be constructed so that the tapered shaft portion 4b is press-fitted as in the example shown in FIG. Then, the elastic body 5 is pushed apart between the inner surface of the socket m and the outer surface of the tube M21M3, so that relative movement can be prevented more reliably.

In addition, the elastic body 5 plays the role of a spacer, and the base tube M19
Also serves to prevent the radial movement of M21M3.

In addition, at the other end of the base pipe M19M29M3, there is a large diameter pipe M1.
and the medium-diameter pipe M2, and between the small-diameter pipe M2 and the small-diameter pipe M
Spacers 10 are disposed at appropriate intervals in the circumferential direction between the two.

The spacer 10 is made of a piece of rubber, a piece of wood, or the like.

FIG. 5 shows another embodiment, in which the elastic body 5 is shaped in advance according to the shape of the inner and outer surfaces of the sockets m of the inner and outer tubes.

Further, a support plate 7 made of a copper plate is attached to the tip of the elastic body attachment member 4.

With this configuration, the work of arranging the elastic body 5 is easy, and the elastic body 5 is compressed in the tube axis direction by tightening the nut 6 after the elastic body 5 is placed in the socket m. Reliable relative movement of the tubes is prevented.

As explained above, according to the present invention, an elastic body that engages with the inside of the socket of the outer tube and the outer surface step of the inner tube is attached to the mounting arm that comes into contact with the end surface of the tube. Therefore, both relative axial movement and radial movement of the incorporated tube can be prevented, and damage to the inner surface of the tube can be prevented.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being a sectional view of the built-in pipe with the mutual fixing device attached, Figure 2 being a front view of the mounting arm, and Figure 3 being the mutual fixing device. FIG. 4 is a partially enlarged cross-sectional view showing the relationship between the tool and the tube, FIG. 4 is a partial cross-sectional view of a modified example of the elastic body mounting member and the elastic body, and FIG. 5 is a partial cross-sectional view of another modified example of the elastic body mounting member and the elastic body. FIG. 1...Mounting arm, 2...Mutual fixing tool, 3
...Mounting hole, 4...Elastic body mounting member,
5...Elastic body, 6...Nut, M1~
M3...Pipe, m...Socket, n...
...Flange, l...Step part.

Claims (1)

[Scope of utility model registration request] a plurality of mounting arms arranged radially and fixed to each other;
It is characterized by comprising an elastic body mounting member whose one end is inserted into the hole of each mounting arm and fixed to the mounting arm with a nut, and an elastic body provided at the other end of each elastic body mounting member. Mutual fixings for built-in pipes.