JPH024305Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is a hose joint for connecting a hose to a water faucet, and especially when the faucet discharge part is either circular or square, water leaks. This invention relates to a hose joint that can be installed without any trouble.

[Conventional technology and problems]

As a conventional hose joint for connecting a hose to a faucet, a hose joint in which water pressure on the discharge side is applied to the outer periphery of the cylindrical part of the gasket that fits onto the faucet discharge part was proposed by the present applicant in Japanese Patent Application No. 55-5914. is proposed.

FIG. 5 shows the structure of the above-mentioned joint, which is made up of a cylindrical joint body 3 having a connection part 2 for the hose 1 at the lower end, and an elastic packing 4 incorporated into the body 3. It is structured as follows.

The joint body 3 is formed by screwing together a lower cylinder 5 and an upper cylinder 6, and the hose connection part 2 is formed by tightening the hose 1 inserted into the lower cylinder 5 with a nut 7 screwed into the lower cylinder 5. It has a fixed structure.

The gasket 4 is made of rubber or an equally effective elastic material, and is formed by connecting a flange 9 to the outer periphery of the upper end of a cylindrical portion 8 that fits onto the discharge portion B of the faucet A, and connects the outer periphery of the flange 9 to the lower The cylindrical body 5 and the upper cylindrical body 6 are squeezed together in a watertight manner so as to be coaxially incorporated into the joint body 3.

An annular space 10 is formed between the outer circumference of the cylindrical portion 8 of the gasket 4 and the inner circumferential surface of the joint body 3, and when water is flowed with the hose connected with the cylindrical portion 8 inserted into the discharge portion B of the faucet A, The discharge water pressure that has flowed into the annular space 10 acts on the outer periphery of the cylindrical portion 8, and the cylindrical portion 8
In addition to the restoring force, the water pressure brings the cylindrical portion 8 into close contact with the discharge portion B, improving the watertightness of the fitting portion between the two and the fixing strength of the joint to the faucet.

By the way, since the cylindrical part 8 of the gasket 4 is formed to have a thick circular cross section, there is no problem with a faucet with a circular discharge part B, but it is not suitable for a faucet with a rectangular discharge part.

That is, when the discharge part B is rectangular as shown in FIG. 6, the thick cylindrical part 8 adheres strongly at the four corners, but the adhesion is weak on the four sides and becomes floating, causing water to leak from the gaps 11. There is a problem.

It is also possible to form the cylindrical part 8 of the gasket 4 into a rectangular tube shape to accommodate a rectangular faucet, but in this case, the suitability for a circular faucet would be poor.
Uses are limited.

This invention was made to solve the above-mentioned problems, and the purpose is to provide a hose joint that can be adapted to both circular and rectangular faucets.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention forms the cylindrical part of the gasket to be thick enough to closely fit along the outer circumferential surface of the rectangular faucet outlet, and provides axial ribs on the outer circumferential surface of this cylindrical part. It has a structure in which a plurality of them are provided at regular intervals in the circumferential direction.

[Effect]

The cylindrical part of the gasket is thick enough to fit tightly against the outer peripheral surface of the square faucet discharge part, so it is compatible with both circular and square faucets, and there is no leakage of water at the fitting part. Since the cylindrical portion is reinforced by a plurality of ribs, there is no problem in inserting or removing the cylindrical portion from the faucet.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 4 of the accompanying drawings. Note that the same parts as in FIG. 5 are designated by the same reference numerals, and the description thereof will be replaced by the same reference numerals.

As shown in FIG. 4, the cylindrical part 22 of the elastic packing 21 incorporated into the joint body 3 is formed with a thin wall thickness so that when it is press-fitted into the rectangular faucet discharge part B, it comes into close contact with the four outer periphery surfaces of the rectangular faucet discharge part B. A plurality of axial ribs 23 are provided on the surface at regular intervals in the circumferential direction.

Since the cylindrical portion 22 is formed with a thin wall thickness, it is easily deformed, and as shown in FIG. It also comes into close contact with B on each of the four sides.

In addition, the ribs 23 provided on the outer periphery are for reinforcing the cylindrical portion 22 and preventing the cylindrical portion 22 from rolling up or stretching more than necessary when inserting and removing from the discharge portion. It is preferable to provide an even number of about 4 to 12 pieces so as to correspond to the four sides of part B.

As shown in FIG. 1, a pair of set screws 24 may be attached to opposing positions on both sides of the upper cylinder 6 so that the joint can be fixed to the faucet A. A recessed part 25 is provided in the part,
By fitting the horizontal part of the faucet A into the recessed part 25, the discharge part B may be inserted deeply into the cylindrical part 22 of the gasket 21.

〔effect〕

As described above, according to this invention, the cylindrical part of the seal comes into close contact with both the circular faucet and the rectangular faucet, and the pressure from the discharged water pressure acting on the outer periphery of the cylinder prevents leakage between the faucet and the seal. This eliminates the problem of generation, and the single structure can be used for both circular and square faucets.

Further, even if the cylindrical portion is formed to have a thin wall thickness, there is no problem in terms of strength due to the reinforcement of the ribs.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal section showing how the hose joint according to this invention is used, Fig. 2 is a perspective view of the seal used in the above, and Figs. 3 and 4 are cross-sectional views of different examples showing the relationship between the faucet and the seal. FIG. 5 is a longitudinal cross-sectional view showing a conventional hose joint in use, and FIG. 6 is a cross-sectional view showing the relationship between the rectangular faucet and the seal in the same. DESCRIPTION OF SYMBOLS 1...Hose, 2...Connection part, 3...Coupling body, 21...Putskin, 22...Cylindrical part, 23...
...Rib, A...Faucet, B...Discharge part.

Claims (1)

[Scope of utility model registration request] It consists of a combination of a cylindrical joint body with a hose connection part at the lower end and an elastic packing with a flange on the outer periphery of the cylindrical part to be inserted into the faucet discharge part. In a hose joint that is fixedly assembled into the joint body and forms an annular space between the outer periphery of the cylindrical part and the inner periphery of the joint body, which applies water pressure on the discharge side to the outer periphery of the cylindrical part, the cylindrical part of the packing is used for the discharge of a rectangular faucet. What is claimed is: 1. A hose joint, characterized in that the hose joint is formed to have a thick wall that closely fits along the outer peripheral surface of the cylindrical portion, and a plurality of axial ribs are provided on the outer peripheral surface of the cylindrical portion at regular intervals in the circumferential direction.