JPS60144409A - Connection structure for perforated tube - Google Patents

Abstract

PURPOSE:To permit simple and quick butt-connection of perforated tubes by a method in which the ends of perforated tubes having a spiral peripheral face are abutted against and a coupler is covered the joint of the bottom outsides of the tubes and coupled for connection. CONSTITUTION:A perforated tube 1 of a synthetic resin, aluminium, etc., has projected lines 11 of a corrugated or rectangular cross section provided at a given pitch on its peripheral face. The tubes 1 are butted, and a coupler 2 is covered on the joint of the bottom outsides of the butted ends and coupled. The projections of the couplers 2 are fitted into the recessions between the projected lines by connecting operation to join the tubes 1. The perforated tubes can thus be connected with each other even in a narrow trench, and no separation of the tubes occurs even when exposed to vibration, impaction, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention provides a spiral 1. Or a perforated pipe connection IM that can easily and quickly join pipes with annular protrusions.
Regarding construction.

(Prior Art) A tube having spiral protrusions on its outer circumferential surface has excellent flatness resistance because the protrusions are flat and have a reinforcing effect. For this reason, this type of pipe is used as underground piping, especially as a drainage pipe to drain underground water from soft ground, or as a water supply pipe to return rainwater etc. underground.
This one-handed member for joining the pipes together was not always satisfactory.

That is, as shown in a half-sectional view in FIG. 5, the conventional joint member has a structure in which four stripes are provided on the inner circumferential surface of a short tube to threadably engage with protrusions on the outer circumferential surface of the tube.

When joining the pipes 1.1 using this joint member 2, after screwing the joint member 2 onto the lower pipe 1 as shown in the figure, the joint member 2 is rotated in the opposite direction. However, the joint member 2 has a disadvantage in that it is biased toward one end of the pipe.

Therefore, when vibrations, shocks, etc. are applied to the pipe, there is a problem in that the end of the pipe on the shallower side of the threaded connection separates from the pipe joint.

Moreover, since the pipe connection using this joint member is carried out in a narrow excavated groove, there is a problem in that the joining operation is troublesome.

(Object of the Invention) The present invention solves the above-mentioned problems of the conventional joint member, and allows both pipe ends to be easily and quickly butted! Although it can be joined, it also has 1111 resistance when subjected to vibration and impact.
Provides a pipe connection structure that does not cause 1112
9. (Configuration of the Invention) Hereinafter, the specific configuration of the present invention will be explained with reference to the drawings. Fig. 1 is a partially cutaway sectional view showing one embodiment of the present invention, W12 is a sectional view taken along line 11-'fL in Fig. 7, and Fig. 3 is a partially cutaway sectional view showing another embodiment. Figure 4 is a side view of Figure 3.
In the drawing C1, numeral 1 is a perforated pipe, and 2 is a joint member.

The perforated pipe 1 is made of synthetic resin such as vinyl chloride resin, or metal such as aluminum or iron, and has a circular cross section, a horseshoe shape,
On the outer circumferential surface of the tube, which has an oval shape (a) or other suitable shape (n1), protrusions 11 having a wave-shaped cross section, a rectangular shape, or any other suitable shape are provided at a predetermined pitch. The inner circumferential surface of the pipe 1 may have one concave line corresponding to the convex line 11 as shown in FIG. It is best to use the 11th page.

This right hole pipe is used as a drainage pipe to drain and cover groundwater in soft ground, or as a water supply pipe to return rainwater underground, and the pipe wall has holes penetrating from the inside to the outside. It is provided with a predetermined big size. When using the former as a drain pipe, the holes 12 are made in stages on the top side of the pipe as shown in Fig. 1), and when the latter is used as a water supply pipe, holes 12 are made in the bottom part as shown in Fig. 3. J: If one hole 13 is provided on the side.

On the other hand, the joint member 2 is made of synthetic resin, metal, etc., and has an inner circumferential surface of a bending plate that fits approximately half the outer surface of the bottom side of the perforated pipe 1 and is attached between each of the protrusions 11 and 11. It has a configuration with matching protrusions.

When joining perforated pipes 1.1 to each other using this joint member 2, first butt the perforated pipes 1.1 against each other, and then attach the bottom outer surface of the butted μ end to the bottom outer surface of the butted μ end so as to straddle both pipe ends. to engage the joint member 2. By this connection operation, the protrusions of the joint member 2 fit between the respective protrusions 11.11, and the perforated pipes 1.1 and 1.1 are joined. At this time, it is preferable to apply an adhesive to the inner surface of the joint member 2 for joining, or to attach a sealing material 3 of a rubber backing cap and perform C-joining. When joining using the sealing material 3, tie a fixing member 4 such as a wire or string to both upper ends of the joint member 2, turn the fixing member 4 to the - side of the right hole pipe, and tighten. When fixed, a strong bond can be obtained.

Figure 3.4 shows another embodiment of the invention,
The joint member 21 connects the perforated pipe 1 using a half-shaped fixing member 41.
).

In this case, as shown in the figure, a groove 211 is provided on the upper outer surface of the joint member 21 and a protrusion 411 is provided on the lower inner surface of the fixing member 41, and the protrusion 411 and the groove 211 are elastically engaged. The fixing operation becomes easier and a stronger joint can be obtained. Note that the inner surface of the fixing member 41 is provided with a protrusion similar to the protrusion provided on the joint member 21, and the protrusion is connected to each of the perforated pipes.
5- It may be fixed by being fitted between the protrusions.

(Effects of the Invention) As described in detail above, the connection structure of the present invention abuts both ends of a perforated pipe having a protrusion on the outer circumferential surface, and both pipe ends □ Since the joint member is engaged across the pipes, the pipes can be easily and quickly joined together, making it extremely suitable for connecting pipes in narrow excavated trenches.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view showing one embodiment of the present invention, and FIG.
The figure is a sectional view taken along the line II-f in Fig. 1, Fig. 3 is a partially cutaway sectional view showing another embodiment of the present invention, Fig. 4 is a side view of Fig. 3, and Fig. 5 is a conventional It is a half sectional view which does not show a joint member. 1... Perforated pipe 11... Convex strip 12.1
3... Hole 2.21... Joint member 4.41... Fixing member -〇- Figure 3 Figure 12 Figure 4 Figure 5

Claims (1)

[Claims] Spiral or annular protrusions are provided on the outer circumferential surface at a predetermined pitch, and the tube walls have holes penetrating from the inner surface to the outer surface of the tube. A member that spans over the tube ends and surrounds the outer surface of the tube bottom is applied to the bottom of the tube, and the protrusions protruding from the joint members are engaged between the protrusions of the perforated tube. A connection structure of perforated pipes characterized by being connected together.