JPS592383Y2 - Mutual fixings for built-in pipes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mutual fixing device for mutually fixing the ends of multiple tubes having flanges at their ends.

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, a support spacer has conventionally been interposed between the inner and outer tubes.

However, the support provided by the support spacer is likely to be unstable due to unexpected movement of the support spacer, and the tubes may be axially displaced from each other.

Therefore, an attempt was made to fix the base tubes together with a member that contacts the end surfaces of the combined tubes, but with tubes that have flanges at the ends, it is difficult to align the end surfaces of the base tubes due to the presence of the flanges. Therefore, it is difficult to fix the base tubes together.

The present invention provides a mutual fixing device that has flanges at the ends, can reliably prevent mutual radial and axial movement of multiple incorporated tubes, and can easily perform fixing work. It is equipped with a plurality of mounting arms arranged radially and fixed to each other, a plurality of holes provided in each mounting arm at appropriate intervals in the longitudinal direction, and bolts and nuts inserted into the base holes. This prevents each tube from moving in both the radial and axial directions, ensuring secure fixation, even if the tubes are installed with a gradual shift in the axial direction due to interference from the flanges. .

One embodiment will be described below based on the drawings.

The mutual fixing device 1 has four mounting arms 2 equally distributed radially, and a connecting member 4 that is welded and fixed between each of the mounting arms 2 to form a square annular frame 3. The inner end of 2 is away from the radiation center P.

The mounting arm 2 and the connecting member 4 are made of channel-shaped material.

Each mounting arm 2 is provided with a plurality of holes 5 in the longitudinal direction, and the holes 5 of each mounting arm 2 are located on a circle centered on the radiation center P.

A T-shaped bolt 7 with a nut 6 screwed on is inserted into the base hole 5, and a spacer 8 is fitted onto each bolt 7 in the other holes 5 except for the hole 5 at the innermost position of the mounting arm 2. be.

The spacer 8 is made of a cylindrical body, and is formed to be gradually longer toward the outer end of the mounting arm 2.

Note that the spacer 8 is not limited to a cylindrical body, but may be a block-shaped member having an insertion hole for the bolt 7.

Next, a method for attaching the mutual support 1 having the above structure will be explained.

First, the installation completed state will be explained.

In FIGS. 3 and 4, M1 to M4 are tubes that are built into each other, and the base tubes M1 to M4 have large diameter sockets at their ends.
An annular flange n is provided on the outer surface of the end of the socket m.

Bolt holes 0 are provided in the flange n at appropriate intervals in the circumferential direction.

The diameters of the base tubes M1 to M4 are smaller than the flange n of the inner tube, and therefore the base tubes M1 to M4 are assembled in a state shifted in the gradual tube axis direction by the thickness of the flange n. .

The mutual fixing device 1 is the innermost tube M installed as described above.
1, the innermost hole 5 of the mounting arm 2 and the iron pipe M
It is fixed to the pipe M1 by tightening the bolt 7 and nut 6 inserted between the hole O of the flange n of the flange 1 and the hole O of the flange n.

The other base pipes M2 to M4 and the mutual fixture 1 are the pipes M2 to M4.
A spacer 8 is interposed between the flange n and the mounting arm 2, and the bolts 7 and nuts 6 inserted between the hole O of the flange n and the hole 5 of the mounting arm 2 are tightened to their full extent.

In this way, by interposing the spacer 8, the base tubes M1 to M4 that are mutually shifted in the axial direction can be reliably fixed to the mounting arm 2.

Since the base tubes M1 to M4 are fixed together by the mounting arms 2 extending between them, mutual movement of the base tubes M1 to M4 in both the radial direction and the axial direction can be prevented.

Support spacers 10 are arranged at appropriate intervals in the circumferential direction between the inner and outer surfaces of the other ends of the base tubes M1 to M4, and the support spacers 10 prevent movement of the tubes M1 to M4 in the radial direction.

Note that even if the spacer 8 is not used for the bolt 7, the inner periphery of the opening of the base tubes M2 to M4 is the inner tube M1 to M3 as shown in FIG.
Since the pipes M1 to M4 are in contact with the flange n of the pipes M1 to M4, the pipes M1 to M4 can be reliably fixed to each other.

When the spacer 8 is used, such abutment can be avoided, and thus damage to the base tubes M1 to M4 can be prevented.

As shown in FIG. 8, the bolt 7 can be screwed with a nut 41 that contacts the mounting arm 2 and a nut 42 that contacts the flanges n of the pipes M2 to M4, in the same way as the spacer 8. The tubes M1 to M4 can be securely fixed without any problem of damage.

FIGS. 5 and 6 show that the tubes M1 to M1 are
An installation device for installing M4 is shown.

21 is a cart movable on the traveling rail 22, and the pipe M
It is equipped with a tube support stand 23 and a self-propelled device 24 that support the tubes 1 to M4 so as to be movable up and down.

Support arms 25 of the tubes M1 to M4 are horizontally arranged above one end of the running rail 22 along the running rail 22.

The support arm 25 is fixed to the base 26 in a cantilevered manner.

A fixture mounting base 27 on which the mutual fixture 1 is placed is provided near the fixed end of the support arm 25, and a half-cylindrical tube end support member 2B is removably mounted near the other end.

The fixture mounting base 27 is disposed at an angle of 45 below both sides of the support arm 25.

The fixing device mounting base 27 includes a main body portion 27a that is brought into contact with the inner end surface of the mounting arm 2 of the mutual fixing device 1, and a positioning portion that is protruded from one end of the main body portion 27H and that is brought into contact with the front surface of the mounting arm 2. It consists of a stopper 27b.

An installation method using the above-mentioned installation device will be explained.

The pipes M1 of the smallest diameter to be assembled with each other are placed on the pipe support stand 23 of the cart 21 at the sheltered position Q using a forklift or the like, and the mutual fixing device 1 is attached to the pipes M1 with bolts 7 and nuts 6.

Thereafter, the tube support stand 23 is raised until the tube M1 is in a concentric position with the support arm 25, and the tube M1 is fitted onto the support arm 25 by moving the truck 21.

When the tube M1 reaches a predetermined axial position of the support arm 25, the upper portion 2 of the mutual fixing device 1 is moved by lowering the tube support base 23.
The book mounting arm 2 is placed on the fixture mount 27, and one end of the tube M1 is thereby supported by the support arm 25 via the fixture mount 27.

At this time, the weight of the tube M1 acts on the mounting arm 2 as an axial load, so unlike the case where the annular frame 8 is placed on the support arm 25, it is not necessary to form the mutual fixing member 1 unnecessarily firmly.

The other end of the tube M1 is supported by a support arm 25 via a tube end support member 2B, thereby keeping the tube M1 horizontal.

Note that the mutual fixing device 1 may be installed in advance on the fixing device mounting base 27 before the tube M1 is externally fitted onto the support arm 25.

In this way, when the support of the tube M1 with the smallest diameter on the support arm 25 is completed, the truck 21 is moved backward, and the tube M2 with the second smallest diameter is placed on the tube support stand 23 of the truck 21.

Then, by moving the truck 21, the tube M2 of the support arm 2 is moved.
1, and mutual fixing tool 1 with bolt 7 and nut 6.
At the same time, a support spacer 10 is interposed between the inner and outer tubes M15M2.

Thereafter, the above-mentioned operations are repeated to externally fit the third tube M3 and the outermost tube M4, and the assembly operation is completed.

In the above embodiment, the mutual fixing tool 1 and the tubes M1 to M4 were fixed each time the base tubes M1 to M4 were fitted together. After the fitting of the brass tubes M1 to M4 is completed, the tube M of the mutual fixing tool 1 is
It is also possible to fix it to 1 to M4.

As explained above, according to the mutual fixing device of the present invention, the base tube is fixed to the plurality of mounting arms arranged radially and fixed to each other with the pole I inserted through the hole in the flange of the base tube. Therefore, even if the tubes are assembled so as to be gradually shifted in the axial direction due to the interference of the flanges, the tubes can be prevented from moving in both the radial and axial directions and can be securely fixed.

[Brief explanation of the drawing]

The drawings show embodiments or application examples of the present invention; FIG. 1 is a front view of the mutual fixing device with the bolts removed, FIG. 2 is a side view of the same, FIG. 4 is a cross-sectional view of the fixed portion between the mutual fixing device and the tube, FIG. 5 is a side view of the built-in device, FIG. 6 is a side view showing the relationship between the mutual fixing device and the support arm of the built-in device, and FIG. FIG. 7 is a sectional view of a modified example of the mutual fixing device and the portion fixed to the tube, and FIG. 8 is a sectional view of the portion fixed to the tube and another modified example of the mutual fixing device. 1... Mutual fixture, 2... Mounting arm, 3
...Annular frame, 5 ... Hole, 6 ...
・Nut, 7...Bolt, 8...Spacer, 41.42...Nut, M1-M4...
...Pipe, n...Flange, 0...
Hole, P... Radiation center.

Claims (1)

[Scope of utility model registration request] a plurality of mounting arms arranged radially and fixed to each other;
A mutual fixing device for built-in pipes, characterized in that each mounting arm is provided with a plurality of holes provided at appropriate intervals in the longitudinal direction, and bolts and nuts inserted into the base holes.