JPS5927447Y2 - Connection structure between water collector and elbow - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connection structure between a water collector and an elbow, and more specifically, an inner flange 3 is provided at the lower end edge of the connection cylinder section 2 at the bottom of the water collector 1 so as to face inward. At the same time, a notch 4 for inserting a protrusion is provided at the inner end 3, an annular locking portion 6 is provided at the end of the elbow 5, and a ring 8 having a protrusion 7 protruding from the outer surface is rotatably engaged with the annular locking portion 6. The connection structure of the water collector and the elbow is obtained by inserting the end of the elbow 5 into the connecting cylinder part 2 and locking the protrusion 7 inserted through the protrusion insertion notch 4 on the inner flange 3. This is related.

Conventionally, the protrusion 7' is integrally formed on the elbow 5',
By inserting this protrusion 7' through the notch 4' of the inner flange 3' of the water collector 1' and rotating the elbow 5', the protrusion 7' is inserted into the inner flange 3'.
It was only posted on.

Therefore, depending on the connecting direction of the elbow 5' and the connecting tube 9', the protrusion 7' may be positioned above the notch 4' and the elbow 5'
is connected to the water collector 1', and when a pulling force is applied to the elbow 5', the protrusion 7' comes out of the notch 4', causing the elbow 5' to come off.

In this case, even if the protrusion 7' was located near the notch 4', it would come off with only a slight lateral movement and pull-out force.

The present invention was devised in view of the above-mentioned conventional drawbacks, and its purpose is to provide an annular locking portion at the end of the elbow, and attach a ring with a protrusion on the outer surface to the annular locking portion. By rotatably locking the protrusion, the position of the protrusion can be freely changed depending on the installation direction of the elbow, and the protrusion can be moved away from the protrusion insertion notch when the elbow is attached to the water collector. To provide a connection structure between a water collector and an elbow, which can be locked on the inner flange at a fixed position and can prevent the elbow from coming off.

The present invention will be explained in detail below using examples.

1 in the figure is a water collector, and the drain pipe part 1 at the bottom of the water collector 1
A connecting cylindrical portion 2 is disposed on the outer periphery of 0 with a gap 11 interposed therebetween.

The connecting cylinder portion 2 is open at the bottom, and has an inner flange 3 facing inward at its lower edge, and a notch 4 for inserting a protrusion into the inner flange 3.

5 in the figure is an elbow, and an annular locking part 6 is provided on the outer periphery of the end of the elbow 5. In the embodiment shown in the figure, an example of a concave groove is shown as the annular locking part 6. ring 8 on part 6
is rotatably attached to the annular locking part 6.

In this case, it is preferable that the ring 8 is fitted into the annular locking part 6 somewhat tightly so that it can be rotated by turning it with a slightly strong force.

A protrusion 7 is provided on the outer surface of the ring 8.

However, by rotating the handle 8, the protrusion 7 is positioned on an arbitrary surface of the outer periphery of the end of the elbow 6, and with the protrusion 7 positioned below the protrusion insertion notch 4, the elbow 5 is Insert the end into the connecting tube 2 (in this case, the protrusion 7 is inserted into the protrusion insertion notch 4).
(inserted).

Next, the elbow 5 is rotated relative to the water collector 1 so that the elbow 5 faces a predetermined connection direction with a connecting tube 9 such as a gutter, and the connecting tube 9 is connected to the other end of the elbow 5. .

Therefore, in the present invention, the ring 8 is rotated in advance to determine the protrusion direction of the protrusion 7 according to the connection direction of the elbow 5 with the connection tube 9, and the elbow 5 is connected to the water collector 1. In this state, the protrusion 7 is locked onto the inner flange 3 at a position sufficiently separated from the protrusion insertion notch 4 (a position where the protrusion 7 cannot be removed from the protrusion insertion notch 4).

In the present invention, as described above, an annular locking portion is provided at the end of the elbow, and a ring having a protruding portion on the outer surface is rotatably locked to the annular locking portion. By rotating, the protrusion position of the protrusion can be changed according to the installation direction of the elbow, and when the elbow is attached to the water collector, the protrusion can be placed on the inner flange at a position away from the protrusion insertion notch. In addition, since the elbow ring is located inside the connection tube of the water collector, the ring is completely hidden in the connection tube and is not exposed to the outside, so it cannot be rotated by external forces such as external shocks. This will ensure that the elbow does not fall out of the water collector.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing a conventional example, Fig. 2 is a perspective view of the present invention, and Fig. 3 is a sectional view of the same.
3 is a connecting cylinder portion, 3 is an inner flange, 4 is a notch for inserting a protrusion, 5 is an elbow, 6 is an annular locking portion, 7 is a protrusion, and 8 is a ring.

Claims (1)

[Scope of utility model registration request] An inner flange is provided on the lower end edge of the connecting cylinder at the bottom of the water collector, and a notch for inserting a protrusion is provided on the inner flange, an annular locking part is provided on the end of the elbow, and a protrusion is provided on the outer surface. Rotatably lock the protruding ring in the annular locking part, insert the end of the elbow into the connecting cylinder, position the ring inside the connecting cylinder, and insert the protrusion inserted through the protrusion insertion notch. A connection structure between a water collector and an elbow that is fixed on the inner flange.