JPS592379Y2 - Mutual fixings for built-in pipes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mutual fixing device for built-in tubes that fixes both ends of built-in tubes that are fitted together.

When transporting pipes of different diameters by ship, etc., the pipes are fitted together to make effective use of space in the ship's hold.

Conventionally, a spacer is inserted between the pipes to prevent the built-in pipes from wobbling, but during cargo handling operations, the pipes may pull out against each other against the frictional force of the spacer. .

The present invention has been devised to overcome these drawbacks.

In other words, the built-in tube mutual fixing device according to the present invention includes a pair of positioning frames that concentrically support the outer peripheries of both ends of the fitted built-in tubes, and a connecting means that connects both positioning frames in the tube axis direction. According to this, the built-in pipes are supported concentrically at intervals and are securely fixed to each other, so that they cannot be accidentally pulled out during cargo handling operations. This has the unique effect that there is no risk of leaking out, and there is no damage to the inside of the tube socket or insertion port.

Examples thereof will be described below based on the drawings. In FIGS. 1 and 2, reference numeral 1 designates built-in pipes that fit into each other, and 2 designates a pair of positioning frames that are disposed in contact with respective end surfaces of the socket 1a and the insertion port 1b of the built-in pipe 1. .

The positioning frame 2 is composed of mounting arms 3 that are joined and fixed in a cross shape, and a plurality of ribs 4 are provided at both ends of the mounting arms 3. They are in contact with this rib 4 and are supported concentrically with each other.

Reference numeral 5 denotes a connecting means for connecting the pair of positioning frames 2 in the tube axis direction, which is disposed between the built-in tubes 1, and is connected to the mounting arms 3 of the positioning frames 2 on both sides with threaded portions 6a at both ends. It consists of a bolt 6 that passes through a provided hole 5', and a tightening nut 7 that is hinged to threaded portions 6a at both ends.

The number of mounting arms 3 of the positioning frame 2 may be increased depending on the diameter, material, etc. of the built-in pipe 1, or reinforcing bars may be provided between the mounting arms 3.

Alternatively, the positioning frame 2 may be provided with a thick and strong mounting arm 3', as shown in FIG. 3, and a groove 8 into which the end of the built-in tube 1 is fitted instead of the rib.

In this case, the positioning frame 2 placed on the insertion port 1b side of the built-in pipe 1
It is appropriate to make the groove 8 wide or to slope the inner groove wall so as not to damage the mortar lining on the inner surface of the socket 1b or the seal coat layer on its surface.

Further, since the mounting arm 3 is thick and strong, it is sufficient for the connecting means 5 to connect the center portions of the positioning frame 2.

Further, the bolt 6 of the connecting means 5 may be connected to threaded portions at both ends instead of a wire.

In this case, the work will be easier if the tips of the mounting arms 3 of the positioning frame 2 are made to protrude from the outermost end of the built-in tube 1 and the tips are connected.

According to the mutual fixing device for built-in pipes according to the present invention, the built-in pipes are supported concentrically by the pair of positioning frames with a distance maintained from each other, and the positioning frames are connected in the tube axis direction by the connecting means. As a result, the built-in pipes are securely fixed to each other, and there is no risk of them being accidentally pulled out during cargo handling operations.

Further, since the built-in tube is supported by the positioning frame at the outer periphery of the end, there is no possibility of damaging the inside of the tube socket and insertion port.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an embodiment of the present invention;
The figure is a front view of the main part of FIG. 1, and FIG. 3 is a partially cutaway side view showing another embodiment. 1...Built-in pipe, 2...Positioning frame, 3
, 3'... Mounting arm, 4... Rib, 5.
...Connecting means, 6...Bolt, 7...
...Tightening nut, 8...groove.

Claims (1)

[Scope of utility model registration request] Mutual fixing of built-in tubes, characterized by comprising a pair of positioning frames that concentrically support the outer peripheries of both ends of the fitted tubes, and a connecting means that connects both positioning frames in the tube axis direction. Ingredients.