JP2000303631A - Connecting structure of drainage cylinder and joint member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the connecting structure of a drainage cylinder and a joint member capable of preventing the generation of an abnormal sound generated by the influence of a wind or the like after the execution of works. SOLUTION: A connecting structure of the drainage cylinder 3 and the joint member and an elbow joint 5 is composed of the short cylindrical drainage cylinder 3 having an retaining projection 31 on an upper outer circumferential surface and a retaining ring 4 rotatably fitted onto the outer circumferential section of the drainage cylinder 3, and a cushioning material 6 made of a polyethylene resin foam is interposed between the upper end face of the elbow joint 5 and the underside of the retaining projection 31 of the drainage cylinder 3 in the connecting structure of the drainage cylinder 3 and the elbow joint 5 in which the upper end section of the elbow joint 5 is inserted and retained into an opening between the retaining ring 4 and the drainage cylinder 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a drainage pipe such as a water collector and a universal drain, and a joint member such as a socket and an elbow.

[0002]

2. Description of the Related Art Conventionally, as a connection structure between a drain tube of a universal drain and an elbow joint, for example, Japanese Utility Model Publication No. Sho 63-48740.
The one described in Japanese Patent Application Laid-Open Publication No. H10-260, 1993 is known. This connection structure
As shown in FIG. 3, by screwing the male screw 21a of the locking tube 2a into the female screw 31a of the drainage tube 3a, the periphery of the hole 51a drilled in the bottom surface of the eaves gutter 5a and the flange 32a of the drainage tube 3a. The rectangular tube-shaped latch is held between the flange 22a of the locking cylinder 2a and a locking groove 34a formed by a locking ridge 33a provided on the upper outer peripheral surface of the drainage cylinder 3a and the flange 32a. 4 provided at four places on the upper inner surface of the ring 4a
The upper ends of the cylindrical elbows 5a are inserted into gaps between the locking rings 4a and the drainage tubes 3a, and provided at two opposing outer peripheral surfaces of the upper ends. The locking projection 51a is locked to the inner peripheral edge of the lower end of the locking ring 4a. It should be noted that the drainage tube and the locking tube constitute a universal drain 1a.

[0003]

However, in this conventional connection structure, there is a gap between the upper end surface of the elbow 5a, which is a joint member, and the lower surface of the locking ridge 33a of the drainage tube 3a. After the lower end side of 5a is connected to a downspout via a similar elbow, the elbow 5a rattles in the above-mentioned gap due to the influence of wind or the like, causing a problem of rattling and noise.

An object of the present invention is to provide a connection structure between a drain pipe and a joint member which can prevent generation of abnormal noise caused by the influence of wind or the like after construction.

[0005]

According to the first aspect of the present invention, a short cylindrical drainage cylinder having a locking ridge on an upper outer peripheral surface is rotatably fitted to an outer peripheral portion of the drainage cylinder. In the connection structure between the drainage tube and the joint member, the upper end of the short tubular joint member is inserted and locked in the gap between the lock ring and the drainage tube, A sound absorbing cushioning material is interposed between the upper end surface of the joint member and the lower surface of the locking ridge of the drainage cylinder.

According to a second aspect of the present invention, in the connection structure between the drainage cylinder and the joint member according to the first aspect, a sound absorbing cushioning material is adhered to an outer peripheral surface of the drainage cylinder.

The drainage cylinder in the present invention may be of a short cylindrical shape. For example, the drainage cylinder may be a drainage cylinder integrally projecting from the bottom of a gutter collector or a drainage cylinder constituting a universal drain. Is also good. Further, the shape of the joint member in the present invention may be a socket joint or an elbow joint.

The sound absorbing cushioning material in the present invention may be a resin foam such as polyethylene, synthetic rubber or soft resin, or a spring material. Then, the cushioning material may be fixed to the upper end face side or the drainage pipe side of the joint member. At that time, when a cushioning material is adhered to the outer peripheral surface of the drainage cylinder,
Even if this cushioning material is present in the gap between the locking ring and the drainage cylinder, when inserting the upper end of the joint member into the gap, it does not interfere at all, and the insertion and locking work of the joint member can be performed. Easy to do.

(Function) According to the first or second aspect of the present invention, since the sound absorbing cushioning material is interposed between the upper end surface of the joint member and the lower surface of the locking ridge of the drainage cylinder, the wind is reduced. The joint member can be prevented from rattling due to the above. As a result, no rattling noise occurs.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing one embodiment of the connection structure of the present invention.

In the figure, reference numeral 1 denotes a gutter collector made of hard vinyl chloride resin, and a short cylindrical drainage cylinder 3 having a drainage port 21 at the bottom of a water collector main body 2 having a substantially U-shaped cross section is provided downward. It protrudes integrally. The drainage cylinder 3 is of a short cylindrical shape, and a locking ridge 31 is continuously provided on the upper outer peripheral surface in the circumferential direction.

Reference numeral 4 denotes a short cylindrical locking ring, and locking projections 41 protrude from four locations on the upper inner peripheral surface, and a narrow flange 42 extends inward from the lower inner surface. I have. The inner diameter of the flange 42 is substantially the same as the outer diameter of an elbow joint described later. As shown in FIG. 2, cutout portions 43, 43 are formed at two opposite positions of the flange 42. Each of the locking projections 41 is locked on the upper surface of the locking ridge 31 of the drainage tube 3, and is rotatably fitted and locked on the outer peripheral portion of the drainage tube 3 as shown in the figure. I have.

Reference numeral 5 denotes a cylindrical elbow joint. Locking projections 51, 51 are integrally provided at two opposing outer peripheral surfaces of the upper end thereof. On the upper end surface of the elbow joint 5, a ring-shaped polyethylene resin foam 6 serving as a sound absorbing cushioning material is provided.
Is glued. The thickness of the resin foam 6 is the elbow joint 5
Is almost equal to the wall thickness. In addition, instead of the cushioning material, a strip-shaped cushioning material is used instead of the ring-shaped one.
May be adhered to any number of places in the circumferential direction of the upper end surface of the. Also,
Both the locking ring 4 and the elbow joint 5 are made of hard vinyl chloride resin.

In the gap between the locking ring 4 rotatably fitted and locked on the outer peripheral portion of the drainage tube 3 and the drainage tube 3, the locking projections 51, 51 of the elbow joint 5 are fitted to the flange 42. After the upper end of the elbow joint 5 is inserted from below by aligning it with the notches 43, 43 existing at two places, the elbow joint 5 is rotated so that both the locking projections 51 are on the flange 42 of the locking ring 4. The connection structure between the drainage cylinder and the elbow joint of the gutter collector according to the present invention is provided.

As described above, since the polyethylene resin foam 6 serving as the cushioning material is interposed between the upper end surface of the elbow joint 5 and the lower surface of the locking ridge 31 of the drainage tube 3, After the lower end is connected to the downspout via a similar elbow, the elbow joint 5 does not rattle in the gap due to strong wind. For this reason, it is possible to prevent occurrence of abnormal noise due to rattling.

In the above embodiment, the resin foam 6 is adhered to the upper end surface of the elbow joint 5, but may be adhered to the outer peripheral surface of the drainage tube 3 as shown in FIG. In this way, by adhering the resin foam 6 to the drainage tube 3 side, the insertion operation of the upper end of the elbow joint 5 into the gap between the locking ring 4 and the drainage tube 3 can be performed more smoothly. In addition, although the locking ring 4 has a cylindrical shape, it may be a rectangular tube.

[0017]

According to the first or second aspect of the present invention, the sound absorbing cushioning material is provided between the upper end surface of the joint member and the lower surface of the locking ridge of the drainage cylinder. It can prevent the joint members from rattling up and down due to the wind after construction,
Generation of abnormal noise can be prevented.

In the present invention according to claim 2,
Since the sound absorbing cushioning material is adhered to the outer peripheral surface of the drainage cylinder, the work of inserting the upper end of the joint member can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a connection structure of the present invention.

FIG. 2 is a bottom view showing the locking ring in FIG. 1;

FIG. 3 is a perspective view of a main part showing a modification of FIG. 1;

FIG. 4 is a cross-sectional view showing a conventional connection structure between a drainage cylinder and an elbow joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gutter collector 2 Collector main body 21 Drain port 3 Drainage cylinder 31 Locking ridge 4 Locking ring 41 Locking projection 42 Flange 43 Notch 5 Elbow joint 51 Locking projection 6 Resin foam (buffer material)

Claims (2)

[Claims] 1. A drainage cylinder having a short cylindrical shape having a locking projection on an upper outer peripheral surface, and a locking ring rotatably fitted to an outer peripheral portion of the drainage cylinder. In a connection structure between a drainage tube and a joint member, wherein an upper end portion of a short tubular joint member is inserted and locked in a gap between the drainage tubes, a locking protrusion between the upper end surface of the joint member and the drainage tube. A connection structure between a drainage pipe and a joint member, wherein a sound absorbing cushioning material is interposed between the lower surface of the strip and the lower surface of the strip. 2. The connection structure between a drain cylinder and a joint member according to claim 1, wherein a sound absorbing cushioning material is adhered to an outer peripheral surface of the drain cylinder.