JPS6029510Y2 - Flexible faucet connection ring - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection ring used for the connection between a faucet body and a flexible pipe.

In so-called flexible faucets, which supply water through a flexible pipe that can rotate around the faucet body, the flexible pipe must be able to rotate smoothly without play, and must not leak water from the connection to the faucet body. Ru.

Various ideas have been made in the past regarding the structure of the connecting portion that satisfies these conflicting demands, but they are not necessarily perfect.

1 to 3 show one conventional example.

In this connection ring, an inner circumferential protruding edge 2 of a connecting ring 1 is fitted into a circumferential groove 4 bored on a predetermined outer circumference of a flexible pipe 3, and an outer circumferential protruding edge 6 is attached to a faucet main body 7 with a cap nut 5. The faucet main body 7 and the flexible pipe 3 are connected by contacting the end of the eye.

In this state, the upper protrusion 8 of the connecting ring 1 is
The sealing gasket 9 is pressed against the faucet main body 7 to perform a water stop function.

Furthermore, by providing the notch 10 in the connecting ring 1 to enable elastic expansion and contraction, even if there is a certain degree of difference in the diameter of the flexible pipe 3, the difference can be absorbed and the connecting ring 1 can be freely connected to the connecting ring 1. It improves the adhesion between the pipe 3 and the circumferential groove 4 and prevents backlash.

However, with the above-mentioned connecting ring 1, the rotational play of the flexible pipe 3 is prevented only by the elastic action of the connecting ring 1 itself, so that the inner circumferential surface of the faucet body 7 and the outer circumferential surface of the flexible pipe 3 If the gap is too large, rotational play will occur in the flexible pipe 3, while if the gap is too small, the rotation of the flexible pipe 3 will be heavy.

In other words, it is not enough to prevent the flexible pipe 3 from rattling only by the elastic action of the connecting ring 1, and a high degree of dimensional accuracy is required in finishing the faucet body 7, the inner diameter, and the outer diameter of the flexible pipe 3. .

For this reason, it took time to manufacture and was disadvantageous in terms of cost.

Therefore, in view of the above-mentioned drawbacks of the conventional technology, the present invention has been improved by providing an uneven part such as a raised strip that intersects the circumferential direction of the ring on the contact surface of the outer circumferential protruding edge of the connecting ring with the faucet body mouth end. When the flexible pipe is connected to the faucet body, compressive deformation force is generated in the uneven parts such as raised strips in the direction of the center of the ring, and this presses and clamps the flexible pipe, thereby preventing rotation of the flexible pipe. At the same time, it is intended to prevent backlash during rotation.

The configuration of the present invention will be explained below according to the embodiments shown in the drawings.

Note that the same reference numerals as in the prior art indicate the same members.

In FIGS. 4 to 6, 11 is a connecting ring.

The connecting ring 11 is made of a synthetic resin material having elasticity and self-lubricating properties, such as polyacetal.

It has an inner circumferential protruding edge 2 on the inner circumferential side, an outer circumferential protruding edge 6 on the outer circumferential side, and an upward protrusion 8 on the upper side.

The cross-sectional shape is convex as shown in FIG.

Reference numeral 10 denotes a notch provided in order to allow the connecting ring 11 itself to elastically expand and contract.

On the surface of the outer circumferential protrusion 6 that comes into contact with the faucet body mouth end surface 13, uneven parts such as raised stripes 12 are formed at appropriate intervals, intersecting the circumferential direction of the connecting ring 11, which is best shown in FIG. There are multiple pieces protruding from the top.

The assembly of the connecting ring 11 having the above configuration is as follows.

First, insert the cap nut 5 into the flexible pipe 3, and then attach the connecting ring 1.
1 is expanded and its inner circumferential protruding edge 2 is inserted into the circumferential groove 4 of the flexible pipe 3.
The connecting ring 11 is fitted into the connecting ring 11 and is tightly attached by the elasticity of the connecting ring 11 itself.

Then, these are inserted into the faucet body 7 via the sealing gasket 9, and the cap nut 5 is screwed onto the faucet body 7.

When tightening the screw, the outer circumferential portion of the raised strip 12 comes into strong contact with the inner circumferential portion of the mouth end surface 13 of the faucet body 7, as shown in FIG.

At this time, the force applied to the raised strip 12 is much higher than the compression resistance of the synthetic resin material (polyacetal, etc.) itself, and the raised strip 12 is shaped so as to match the shape of the end face of the faucet body 7 near the inner periphery. It is compressed and deformed.

The compressive deformation force of the raised strip 12 acts toward the center of the connecting ring 11, so that the connecting ring 11 is brought into close contact with the flexible pipe 3.

As a result, the faucet body 7, the connecting ring 11 and the flexible pipe 3
are integrally connected, and it is possible to prevent rotational play of the flexible pipe 3 due to the gap between the faucet main body 7 and the flexible pipe 3.

This is not affected by the difference between the inner diameter of the faucet body 7 and the outer diameter of the flexible pipe 3, that is, the size of the gap between the two members, but can be absorbed.

Although the above embodiment shows a male-male relationship in which the flexible pipe 3 is fitted into the faucet main body 7, this may be the opposite case.

Furthermore, the uneven portions such as the raised stripes 12 are not limited to the shapes of the above-described embodiments shown in FIGS. 4 to 6, and may be, for example, wavy, diagonal, zigzag, or depressed.

Furthermore, it may have a tapered configuration in which the height decreases toward the outer circumference.

As explained above, in the present invention, an uneven part such as a raised strip that intersects with the circumferential direction of the ring is provided on the surface of the outer circumferential protruding edge of the connecting ring that comes into contact with the faucet body mouth end. , it is possible to provide a connecting ring that does not require a high degree of dimensional accuracy in finishing the inner diameter of the faucet body and the outer diameter of the flexible pipe, and can absorb the dimensional difference between them, thereby preventing rotational play of the flexible pipe. Can be done.

Furthermore, the inner and outer diameters of both of the above members can be made roughly, resulting in excellent productivity and cost advantages.

Furthermore, it is easy to set the rotating weight of the flexible pipe by changing the design of the number, width, etc. of raised or depressed stripes, which is excellent in planning and design.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional examples; Figure 1 is a cross-sectional view of the connecting part of the adjustable faucet, Figure 2 is a perspective view of the connecting ring, and Figure 3 is a cross-sectional view taken along the line A-A in Figure 2. , FIG. 4 to FIG. 6 are related to the present invention, FIG. 4 is a perspective view of the connecting ring, and FIG. 5 is a perspective view of the connecting ring.
FIG. 6 is an enlarged sectional view of the main part of the faucet connection section with the connection ring attached. 7... Faucet body, 3... Flexible pipe,
11...Connection ring, 4...Peripheral groove, 2
...Inner circumferential protruding edge, 6... Outer circumferential protruding edge,
9... Seal packing, 12... Raised strip (sinking strip).

Claims (1)

[Scope of utility model registration request] A ring for connecting a flexible pipe to a faucet body made of a synthetic resin having elasticity and self-lubricating properties such as polyacetal, the inner circumferential surface of which is provided with an inner circumferential protrusion that fits into the circumferential groove of the flexible pipe. In addition, an outer circumferential protrusion is provided on the lower outer circumferential surface, and the upper protrusion is formed to press a sealing gasket interposed between the faucet main body and the flexible pipe. A connecting ring for a flexible faucet, characterized in that an uneven part such as a raised strip is formed on the upper surface of the edge, intersecting the circumferential direction of the ring.