JPH0542066Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a mutual fixing device for built-in pipes.

BACKGROUND ART When transporting several types of pipes with different diameters, loading space can be effectively utilized by incorporating a small diameter pipe into a large diameter pipe. For this reason, conventionally, as shown in Utility Model Application Publication No. 59-42381, for example, a small-diameter inner tube is arranged concentrically inside a large-diameter outer tube.
It has been proposed that these outer tubes and inner tubes are fixed to each other.

Problems to be Solved by the Invention However, in such conventional devices, it is necessary to arrange the outer tube and the inner tube concentrically, which requires a special centering device and requires assembly. The drawback is that it takes time and effort to assemble.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to enable easy assembly work without the need for a special centering device as in the prior art.

Means for Solving the Problems In order to solve the above problems, the present invention provides a built-in tube in which an inner tube is inserted inside a horizontal outer tube, and this inner tube is placed on the bottom of the inner periphery of the outer tube. a first frame member having a mutual fixing device disposed at a horizontal chord position in the lower part of the outer tube, and having both ends engaged with and held by an inner flange formed in an opening of the outer tube; a pair of second frame members having one end fixed to the first frame member and arranged in a V-shape upward from the first frame member along the end surface of the built-in pipe; and a fixing member attached to the frame member of the pipe and hooked to the upper part of the inner flange formed at the opening of each pipe.

Effect According to such a configuration, a frame is configured by the first frame member and the second frame member, and this frame is attached to both ends of the first frame member and the pair of second frame members, respectively. It is fixed to the outer tube by a pair of fixed members. The inner tube is inserted into the bottom of the inner circumference of this outer tube.
A pair of fixing members similar to those of the outer tube are mounted on the inner tube, and a pair of fixing members similar to those of the outer tube are engaged with the upper portion of the inner flange. Therefore, the inner tube is held at three points by the interlocking portion with the pair of fixing members and the contact portion with the outer tube, so that the inner tube is fixed at a fixed position within the outer tube. Similarly,
Further, another inner tube can be incorporated and fixed inside the inner tube.

Embodiment In FIGS. 1 to 3, 1, 2, and 3 are large and small pipes with different diameters, and at one end of each pipe 1, 2, and 3, there is a socket 5 having an inner flange 4 at the opening. is formed. These tubes 1, 2, and 3 are built into each other, and the inner tube 2 inserted into the outer tube 1 rests on the inner peripheral bottom 6 of this outer tube 1. Here, a triple built-in pipe is shown as an example.
A tube 3 is further inserted and placed on the inner circumference bottom 7 of the tube 2. Further, the tubes 1, 2, and 3 are assembled into each other with the end surfaces of the sockets 5 aligned.

8 is a mutual fixing device based on the present invention. Here, 9 is a frame, which includes a first frame member 10,
It has a pair of second frame members 11.
The first frame member 10 has a tube 1 as an outer tube.
It consists of an L-shaped member placed at the horizontal chord position at the bottom of the. As shown in FIG. 3, hooks 12 using L-shaped members are attached to both ends of the first frame member 10. By doing so, this first frame member 10 is connected to the pipe 1.
It will be installed on. The first frame member 10 also has a tube 3 with a similar configuration to the hook 12.
Another hook 27 that is hung on the inner flange 4 of
is installed.

A mounting plate 1 is provided at the center of the first frame member 10.
3 is fixed, and a pair of second frame members 11, 11 are attached using this attachment plate 13. This pair of second frame members 11,
11 is constituted by a U-shaped member that contacts the end surface of the socket 5, and one end is fixed to the mounting plate 13 so as to form a V-shape upward from the mounting plate 13. Reference numeral 14 denotes a horizontal pressing member, which is composed of an L-shaped member disposed between both second frames 11, 11, and is fixed to the second frames 11, 11 with bolts and nuts 25. In particular, it presses against the second top outer surface. A plurality of mounting holes 26, 26 are formed in the second frames 11, 11 so that the mounting position of the pressing member 14 can be changed according to the diameter of the tube 2. Further, the pressing member 14 is formed with an elongated hole 27 corresponding to the mounting holes 26, 26.

A fixing member 1 is provided on the second frame 11 at a position corresponding to the inner periphery of the inner flange 4 of each pipe 1, 2, 3.
5 is installed. As shown in FIG. 2, this fixing member 15 includes a claw 16 that engages with the rear end surface of the inner flange 4, a block 18 that engages with the inner peripheral surface 17 of the inner flange 4, and a bolt 19 that passes through this block 18. are integrated by welding. The bolt 19 is attached to the second frame 1
1 and is fixed to the second frame 11 by screwing a nut 20 therethrough.

4 and 5 show the insertion ports 21 of the tubes 1, 2, and 3. If the inner tube 2 can be placed on the bottom of the inner periphery of the outer tube 1 on the insertion port 21 side as shown in the figure, each tube 1, 2, and 3 can be connected to each other using a clamper 22 as illustrated. Fix it. This clamper 22 is made by bending a pipe material or a bar material into a double U-shape. It is fitted into these tubes 1, 2, and 3 from the opening of 21. 23 is a polypropylene rope for preventing the clamper 22 from being pulled out, and is laid between the first and second cables, and its end is brought out from the open end of the insertion port 21.
It is tied to the clamper 22. 24 is a pawl, which is sandwiched between the tubes 1 and 2.

In such a configuration, when fixing the tubes 1, 2, and 3 to each other, first insert the inner tube 2 into the outer tube 1, and then insert the inner tube 2 into the outer tube 1. It is placed on the bottom of the periphery, and the end faces of the sockets 5 of both tubes 1 and 2 are aligned. Similarly, tube 3 is installed inside tube 2.

Next, the mutual fixing tool 8 is attached. That is, the frame 9 is applied to the end surfaces of the tubes 1, 2, and 3, and the latches 12, 27 are attached to the inner flanges 4 of the tubes 1, 3.
Multiply by. This holds the first frame member 10 in place at the bottom of the tube, so that the second
A fixing member 15 is attached to each of the frame members 11, 11, and the claws 16 and block 18 of the fixing member 15 are engaged with the inner flange 4 of the pipe 1.

Then, since the frame 9 will be fixed to the end face of the socket 5 of the pipe 1, other fixing members 1 will be fixed in the same way.
5 over the inner flanges 4 of the sockets 5 of the tubes 2 and 3, and these tubes 2 and 3 are fixed to the frame 9. Then, the tube 2 is held at three points by the interlocking portion with the fixing member 15 and the contact portion with the outer tube 1, and is fixed at a fixed position within the tube 1.
Similarly, the innermost tube 3 is fixed to tube 2, so that these tubes 1, 2, 3 are fixed to each other. In addition, the pressing member 14 is
By attaching it to the frame member 11 of the pipe 2
The top of the holder is held under pressure.

On the insertion port 21 side, a rope 23 is laid in advance between the tubes 1 and 2, a pawl 24 is installed, a clamper 22 is attached, and the rope 23 is tied to the clamper 22.

Effects of the invention As described above, according to the invention, the inner tubes can be fixed to each other with the inner tube inserted and placed on the bottom of the inner periphery of the outer tube, so there is no need to align the tubes with each other. A special device for aligning the lever is not required, and the assembly work can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a cross-sectional side view of its main parts, Fig. 3 is a side view of the main parts, and Fig. 4 is an end view on the insertion port side. FIG. 5 is a sectional side view of FIG. 4. 1...Pipe (outer pipe), 2...Pipe (inner pipe), 3...
...Pipe, 4...Inner flange, 6, 7...Inner periphery bottom,
DESCRIPTION OF SYMBOLS 10... First frame member, 11... Second frame member, 12... Hanging tool, 15... Fixing member.

Claims (1)

[Scope of Claim for Utility Model Registration] A mutual fixing device for built-in tubes in which an inner tube is inserted into an outer tube in a horizontal direction and the inner tube is placed on the bottom of the inner periphery of the outer tube, which a first frame member disposed at a horizontal chord position in the lower part and having both ends engaged with and held by inner flanges formed in the opening of the outer tube; and a pair of second frame members arranged in a V-shape upward from the first frame member along the end surface of the built-in pipe; A fixture for mutual fixing of built-in pipes, comprising: a fixing member that is engaged with an upper part of an inner flange formed at an opening of the pipe.