JPS6124784Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a faucet-specific fitting for connecting a hose to a water faucet.

Conventional technology In order to connect a hose to the tip of a faucet, a joint is used that is inserted into the downward end of the faucet and connects the hose, but such a joint does not resist even when water pressure or tension from the hose is applied. It must be constructed so that it cannot easily be removed from the faucet.

By the way, conventional hose joints are
As shown in No. 51-29320, a joint body with a hose connection portion provided at the lower end is formed into a cylindrical shape that fits over the downward tip of the faucet, and the upper end of this body is fixed to the downward tip of the faucet. It has a structure that incorporates an elastic cylinder inside.

Further, as a mounting structure, it has been considered to use a combination of an elastic cylinder that fits onto the tip of the faucet and a fixation using a tightening screw from outside the joint body.

Problems to be Solved by the Invention However, with the above-mentioned mounting structure, there is a problem in that sufficient fixing strength cannot be obtained, and separation occurs due to the tensile force of the hose.

That is, since the hose connected to the lower end of the joint main body is routed during water sprinkling or the like, rotational force is applied to the joint main body at the same time as the pulling force.

However, in the conventional mounting structure as described above, the fixed amount of force against the rotation of the joint body is extremely weak, and the load in the rotational direction can cause the screws to loosen or the tightening force of the elastic cylinder to decrease, and at the same time, it is difficult to pull out due to water pressure. Since a directional force is acting on it, if rotational force is applied to the joint body, it will easily come off.

This idea was made in order to solve the problems mentioned above, and it is a hose joint exclusively for faucets that does not rotate against the faucet even when the tensile force of the hose is applied, and can securely prevent the faucet from coming off. The purpose is to provide.

Means for Solving the Problems In order to solve the above-mentioned problems, this invention has a fixing screw for the faucet at the upper end and a hose connection part at the lower end. A cylindrical body is provided, and a recessed part is formed at the upper end of the joint body to fit around the faucet, and the recessed part serves as a stop for the joint body to rotate relative to the faucet.

Function: Insert the joint body into the downward facing tip of the faucet, and fit the recessed part for preventing rotation into the faucet from below to prevent rotation.

The joint body is fixed to the faucet by tightening the screw, and the elastic cylinder built into the joint body fits onto the faucet, and the water pressure acting on the outer circumferential surface tightens and seals the faucet.

Since the joint body of the elastic cylinder is fixed to the faucet with a screw, static pressure is applied to the faucet to firmly fix the joint body to the faucet.

Embodiments Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, the joint body 1 has a cylindrical shape that is long in the vertical direction, and has a male thread 2 formed on the outer peripheral surface of the upper end.
The downward tip of the faucet A is fitted with an externally fitting envelope 3, and a hose connection part 4 is provided at the lower end.

The envelope 3 has a female thread 5 screwed into the male thread 2 on its inner peripheral surface, and a recess 6 that fits into the lower part of the faucet A is provided on its upper edge. Screws 7 for fixing 3 to the faucet A are installed at positions on both sides of the axis. In addition,
The lower part of the faucet A into which the recessed notch 6 fits is the lower surface of the root part where the tip of the faucet bends downward, and as shown in FIG. , a recessed part 6 formed in a substantially semicircular shape at a position perpendicular to the screw 7 is externally engaged with the above-mentioned lower surface of the faucet A, so that the joint body 1 does not rotate in the circumferential direction with respect to the faucet A. A state where rotation is stopped will be obtained.

The hose connection portion 4 includes a retaining protrusion 8 formed on the outer circumferential surface of the lower end portion of the joint body 1 that is narrowed to a small diameter, a male thread 9 formed on the outer circumferential surface at a position above the protrusion 8, and It is formed into a cylindrical shape that fits externally on the lower end, and the female thread 10 on the inner peripheral surface of the upper end is connected to the male thread 9.
It is formed by a hose tightening tube 11 that is screwed together.

Further, an elastic cylinder 12 made of rubber or the like is incorporated inside the upper end of the joint main body 1 described above. This cylindrical body 12 has an inner diameter with a slightly smaller diameter at the lower end so that the faucet A can be easily inserted and removed, and a flange portion 13 provided on the outer peripheral surface of the upper end is inserted between the joint body 1 and the envelope body 3. It is fixed.

The elastic cylinder 12 has a flange portion 13 at the upper end.
is fixed in the joint main body 1, and the lower end side is assembled in a state of being free, and an annular space 14 whose lower part is open is formed between the outer circumferential surface and the inner circumferential surface of the main body 1.

The joint of this invention has the above-mentioned structure, and the method of attaching the hose to the faucet will be explained next.

Insert the elastic cylindrical body 12 into the joint body 1, screw in the envelope 3, and with the joint assembled, insert the envelope 3 into the downward tip of the faucet A and push it up. Fit it to the bottom of A.

Next, the screws 7 on both sides are tightened to fix the joint body 1 to the faucet A. In this state, the tip of the faucet A fits into the elastic cylindrical body 12, and the lower end of this cylindrical body 12
It is in contact with faucet A as shown in the figure.

When the faucet A is opened and water is discharged with the hose connected to the lower end of the joint body 1 through the connection part 4, the body 1
The water pressure inside acts on the outer circumferential surface of the elastic cylinder 12 in a stationary state, and this cylinder 12, as shown in FIG.
The entire inner circumferential surface comes into close contact with the faucet A and is tightened under static pressure, which prevents water from leaking from the joint attachment part and at the same time prevents the joint from coming off from the faucet A due to water pressure. Also, the recessed part 6 is the faucet A.
This prevents the joint body 1 from rotating even when the hose is pulled.

Effects As described above, according to the hose joint exclusively for faucets of this invention, the joint can be attached and removed from the faucet by inserting and removing the elastic cylindrical body that lightly fits onto the faucet. It's extremely easy to do and there's no chance of damaging the faucet.

In addition, after fixing the main body to the faucet with screws, the elastic cylinder tightens the faucet with water pressure, so even if it is structured to fit lightly on the faucet, sufficient adhesion will occur under static pressure. It is possible to reliably prevent water leakage and to firmly maintain the state in which the joint is attached to the faucet.

Furthermore, since a recessed part is provided at the upper end of the joint body that fits into the lower part of the faucet, the joint body can be brought closer to the faucet, and the amount of protrusion from the faucet during installation is reduced, making it easy to clean. Not only can the mounting condition be obtained, but also the rotational force applied to the joint body due to the tension of the hose when connecting the hose can be supported by fitting the recessed part to the faucet, and the joint body does not rotate. There is no chance of the attachment becoming loose or coming off.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional front view showing the hose joint for faucets of this invention, Figure 2 is a front view showing the main parts of the same when water pressure is applied, and Figure 3 is a side view showing how the hose joint is attached to the faucet. It is a diagram. DESCRIPTION OF SYMBOLS 1... Joint main body, 3... Covering body, 4... Hose connection part, 6... Recessed part, 7... Screw, 12... Elastic cylindrical body, 14... Annular space.

Claims (1)

[Scope of utility model registration request] A hose connection part 4 is provided at the lower end of the joint body 1 formed into a cylindrical shape with an inner diameter that loosely fits on the outside of the downward tip of the faucet. Attach the attached screw 7 to the inside of the joint body 1 so that the outer periphery of the upper end is fixed to the inner peripheral surface of the joint body 1 in a watertight manner, and the inner diameter of the lower end that is free is the diameter that fits into the tip of the faucet. An annular space 14 is formed between the outer peripheral surface of the elastic cylinder 12 and the inner peripheral surface of the joint body 1, the lower end of which communicates with the downstream interior of the elastic cylinder 12 in the joint body 1. A hose joint exclusively for faucets, which is provided with a rotation-stopping recessed part 6 on the upper end surface of the joint main body 1, which is externally engaged with the lower surface of the root portion where the tip of the faucet bends downward.