JPH06249376A - Hose connection - Google Patents

Abstract

PURPOSE:To reliably prevent leakage of water even when a helical reinforced hose is used by a method wherein a plurality of protrusions are formed at intervals of a specified distance in an axial direction on the inner side surface of a hose press ring, the hose is capable of being pressed between the protrusions, and the hose and a pipe for insertion of a hose are brought into adhesion to each other. CONSTITUTION:A ring press part 19c to press a hose press ring 18 against the inside is arranged to the inner tip part of a cap 19 for fastening and brought into an inclined state by means of a slope l9d. An inclined hose press surface 18d is brought into a state to parallel a helical reinforced hose 3 and the hose 3 is forced into pressure adhesion to a pipe 17 for inserting a hose. Thus, in linkage with screwing-in of the cap 19 for fastening, the hose press surface 18d and projections 18e and 18f are pressed against the outer peripheral surface of the helical reinforced hose 3. This constitution causes coupling of the helical reinforced hose 3 with the pipe 17 for inserting a hose in a close adhesion state, and reliable prevention of leakage of water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose connector for detachably connecting a hose to a faucet, a sprinkler nozzle, other water supply sources, liquid supply sources and the like.

[0002]

2. Description of the Related Art Conventionally, for connecting a hose to a faucet, a sprinkling nozzle, or other water supply source or liquid supply source, one end of the hose is inserted into a hose connecting cylinder such as a faucet, and the insertion portion is tightened with a tightening band. It is done by tightening.

[0003]

By the way, in recent years, in order to prevent the hose from collapsing, the hose body is made thick, and a hard reinforcing wire is spirally wound inside or on the surface of the hose body to improve rigidity. Hoses are used for gardening hoses.

However, when such a spiral reinforcement hose is connected to the faucet or the like in the same manner as a conventional ordinary hose, the inner peripheral surface and the outer peripheral surface of the spiral reinforcement hose become uneven due to the presence of the reinforcing wire. Therefore, there is a drawback that the inner peripheral surface of the spirally reinforced hose is not sufficiently adhered and fixed to the outer peripheral surface of the hose insertion pipe of the connector, which causes water leakage.

An object of the present invention is to provide a hose connector which solves the above problems.

[0006]

According to the present invention, a hose inserting pipe is provided in the central portion on one end side, and a cap mounting cylinder portion is concentrically provided around the pipe, and an outer peripheral surface of the cap mounting cylinder portion is provided. A hose tightening cap that allows a spiral reinforcement hose to be inserted and a male screw part to be screwed are formed, and a large number of pressures are applied at intervals in the circumferential direction between the tightening cap and the hose inserting pipe. An inner surface of the hose pressing ring in a hose connector in which a pressing claw can be pressed against the outer peripheral surface of a spirally reinforced hose by interposing a hose pressing ring having a claw and interlocking with screwing of a tightening cap. The present invention provides a hose connector characterized in that a plurality of projections are provided at regular intervals in the axial direction of the ring, and a hose can be pressed between the projections.

Further, according to the present invention, a thick wide pressing portion for pressing the hose by surface contact is provided on the inner side surface of each pressing claw portion of the hose pressing ring, and the hose pressing surface is formed inside the pressing portion. In addition, a plurality of projections are provided on the pressing surface of the hose at regular intervals in the axial direction of the ring, and the hose can be pressed between the projections.

Further, the present invention is characterized in that the hose pressing surface provided on the wide pressing portion of the hose pressing ring can press the spiral reinforcing member housed in the hose.

Further, the present invention is characterized in that a plurality of protrusions for pressing one or more pitches of the spiral reinforcing member in the hose are projected on the hose pressing surface provided on the wide pressing portion of the hose pressing ring.

Further, the present invention is characterized in that a sealing material is attached to the outer peripheral surface of the hose inserting pipe between the protrusions provided on the hose pressing ring.

Further, the present invention is characterized in that an O-ring is attached to the outer peripheral surface of the hose inserting pipe between the projections provided on the hose pressing ring.

[0012]

【Example】

(Embodiment 1) Hereinafter, referring to the embodiments shown in the accompanying drawings, a faucet connector A as one mode of the hose connector according to the present invention.
The configuration will be specifically described.

The hose connector according to the present invention can be suitably used not only in the faucet connector A but also in the sprinkling nozzle and other places where hose connection is required. The description will be made with reference to the case where it is used.

In the perspective view of FIG. 1, 1 indicates a faucet,
A faucet connector A composed of a fixture 4 and a connector 2 is attached to a water outlet 1a of the faucet 1, and a spiral reinforcement hose 3 is connected via the faucet connector A.

First, the structure of the fixing tool 4 will be described. As shown in FIGS. 1 and 2, the fixing tool 4 is formed of a substantially cylindrical body, and the mounting portion 5 of the spout 1a is provided on the upper part thereof. And a fitting male portion 6 for connecting the connecting tool 2 is provided in the lower portion thereof.

A packing 4a for mounting with the water outlet 1a is provided on the inner peripheral portion of the upper opening of the fixture 4.

A fixing bolt 5a is provided on the mounting portion 5 of the fixture 4, and is used for mounting and fixing the fixture 4 on the faucet 1. Next, the structure of the connector 2 will be described. As shown in FIGS. 2 and 3, the connector 2 is also formed of a tubular body, and the fitting male portion 6 of the fixture 4 is fitted therein. It has a fitting female part 7 to be fitted.

In this embodiment, the female fitting portion 7 is a female portion forming tubular body 8 which is fitted to the male male portion 6 of the fixture 4, and a hose connecting tubular body to which the spiral reinforcing hose 3 is connected. It consists of 9. To be more precise, the spiral reinforcement hose 3 is, as described later,
It is connected to a small-diameter hose insertion pipe 17 formed at the center of the hose connecting cylinder 9.

Further, on the inner peripheral surface 8a of the female part forming cylinder 8,
A plurality of connecting claws 10 are arranged, and the connecting claws 10 are connected by engaging the engaging claws 10 with the engaging protrusions 11 provided on the fitting male portion 6 of the fixture 4.

As shown in FIG. 2, the connecting claw 10 is formed in a substantially V shape, and its base end portion 10a is provided on the outer peripheral portion of the female portion forming tubular body 8 so as to be rotatable in the radial direction. Moreover, the tip portion 10b is directed radially inward through the hole 12 provided in the inner peripheral surface 8a.

Further, a detachable cylinder 13 is slidably provided around the female portion forming cylinder 8 so that the detachable cylinder 13 can be attached to and detached from the fixture 4. I have to.

On the inner peripheral surface of the detachable cylinder 13, a connecting claw is provided.
A short protrusion 13a that presses 10 from the rear is provided,
The attachment / detachment cylinder 13 is slid up and down, and the connecting claw 10 is projected by the protrusion 13a to connect the connector 2 and the fixture 4.

A spring 15 is attached to the attaching / detaching cylinder 13, and the attaching / detaching cylinder 13 is biased upward by the spring 15 so that the connecting tool 2 and the fixing tool by the connecting claw 10 are attached. I am trying to connect with 4.

Further, in this embodiment, a recessed space 16 for releasing the connection by the connection claw 10 is provided above the projection 13a of the detachable cylinder 13.

The connecting tool 2 accommodates the connecting claw 10 in the same space 16 and can be easily removed from the fixing tool 4 when the detachable cylinder 13 is slid downward.

As shown in FIGS. 2 and 3, a small diameter hose inserting pipe 17 communicating with the fixture 4 is provided in the hose connecting cylinder 9, and the hose connecting cylinder 9 is provided on the outer peripheral surface of the same. A tightening cap 19 is attached via a hose pressing ring 18.

In this embodiment, the water discharge flow path R is formed inside by connecting the fixing tool 4 and the connecting tool 2, and tap water is supplied to the spiral reinforcing hose 3 through the flow path R. To send water.

Further, in this embodiment, as shown in FIG. 2, a ring accommodating groove portion 30 is provided on the outer peripheral surface of the fitting male portion 6 of the fixture 4, and a flexible O-ring 31 is formed in the groove portion 30. Is attached to the inner peripheral surface 8a of the female part forming cylindrical body 8 of the connector 2 so as to be crimped.

Further, a packing accommodating recess 32 is provided from the inner periphery of the female part forming cylinder 8 of the connector 2 to the upper end of the hose connecting cylinder 9 to form a cylindrical flexible packing 33. Is stored.

In the present invention, such a hose insertion pipe 17 is used.
The structure of the hose pressing ring 18 for preventing water leakage has its characteristics, and its configuration will be described in detail below.

That is, as shown in FIG. 2 and FIG. 3, the hose connecting cylinder 9 is concentrically arranged inside the cap mounting cylinder 9b and the cap mounting cylinder 9b having a male thread 9a formed on the outer peripheral surface thereof. The hose insertion pipe 17 having a small diameter is provided, and the spiral reinforcement hose 3 is fitted and connected to the outer peripheral surface of the hose insertion pipe 17.

In this embodiment, the hose connecting cylinder 9 is used.
Of the cap mounting cylinder 9b to the external thread 9a
A female screw portion 19a provided on the inner surface of the screw is screwed, and as shown in FIG. 3, a large number of pressing claw portions 18a are provided between the tightening cap 19 and the hose inserting pipe 17 at circumferential intervals. There is a hose pressing ring 18 provided with.

As shown in FIG. 3, the hose pressing ring 18 has a plurality of cut grooves 18b from the upper and lower end surfaces thereof.
Has a long kerf 18b from the bottom surface and a kerf 18b from the top surface.
b is shortly provided between the cut grooves 18b from the lower end surface, and the pressing claw portion 18a is formed at the portion between the cut grooves 18b and 18b from the lower end surface.

Further, in the present invention, as shown in FIGS. 4 and 5, a thick wall-shaped wide pressing portion 18c for making surface contact is projectingly provided inside the pressing claw portion 18a of the hose pressing ring 18, and ,
Inside the pressing portion 18c, there is provided an inclined hose pressing surface 18d that widens toward the tip direction. further,
The hose pressing surface 18d is provided with mountain-shaped projections 18e, 18f in the width direction of the pressing claw 18a with a certain distance in the axial direction of the hose pressing ring 18, and between the projections 18e, 18f. In, the spiral reinforcing hose 3 can be pressed.

In this embodiment, a ring pressing portion 19c for pressing the hose pressing ring 18 inward is provided at the inner tip of the tightening cap 19, and the inclined surface 19d of the pressing portion 19c causes a pressing claw portion. Press the tip of 18a to
a is inclined toward the inner diameter, and the pressing claw 18a
The slanted hose pressing surface 18d is parallel to the spiral reinforcing hose 3, and the hose 3 is held with the pressing surface 18d.
Is to be crimped to the hose insertion pipe 17.

Therefore, in conjunction with the screwing of the tightening cap 19, the hose pressing surface 18d provided on the pressing claw portion 18a of the hose pressing ring 18 and the projections 18e and 18f press against the outer peripheral surface of the spiral reinforcing hose 3. can do. That is, the spiral reinforcing member 21 is pressed by the pressing force in the inner diameter direction of the pressing claw portion 18a whose tip portion is divided.
Also, the thick portion between the pitches can be pressed against the hose inserting pipe 17, and the outer portions 3a of the hose 3 can be brought closer to the hose pressing surface 18d side by the respective projections 18e and 18f. As a result, the spiral reinforcement hose 3 can be connected to the hose insertion pipe 17 in a more closely contacted state, and water leakage can be prevented more reliably.

Further, as described above, since the spiral reinforcing member 21 and the thick portion between the pitches thereof can be pressed against the hose inserting pipe 17 by the pressing force of the pressing claw portion 18a in the inner diameter direction, the spiral reinforcing member 21 can be pressed. It is possible to prevent the hose 3 from moving and dropping in the axial direction.

Further, in this embodiment, as shown in FIG. 2, two kinds of spiral reinforcing members 21, 2 are provided in the spiral reinforcing hose 3.
1a is attached and the pressing claw 18a of the hose pressing ring 18
The soft outer portions 3a at the upper and lower portions of the spiral reinforcing members 21, 21a are pressed by the projections 18e, 18f provided on the
The hose pressing surface 18e between the e and 18f presses the two kinds of spiral reinforcing members 21 and 21a at the same time, and the protrusions 18e and 18f
By holding the spiral reinforcing members 21 and 21a so as not to move between them, the spiral reinforcing hose 3 is connected to the hose inserting pipe 17 in a close contact state.

In this case, the spiral reinforcing members 21, 21a of one pitch or more in the spiral reinforcing hose 3 are pressed between the protrusions 18e, 18f of the hose pressing ring 18,
When each protrusion 18e, 18f presses on the spiral reinforcing member 21, 21a, the outer part 3a of the hose 3 brought closer by each protrusion 18e, 18f is positioned on the spiral reinforcing member 21, 21a, A reliable seal can be provided to prevent water leakage.

(Embodiment 2) Further, as shown in FIG. 6, the protrusions 18c, 18 provided on the pressing claw portion 18a of the hose pressing ring 18
A seal member 34 is attached to the outer peripheral surface of the hose insertion pipe 17 between the d positions, and the pressing claw portion is attached on the seal member 34.
The spiral reinforcing hose 3 is pressed by 18a.

In this embodiment, an O-ring 35 is used as the sealing material 34, an annular groove 36 is provided on the outer peripheral surface of the hose inserting pipe 17, and the O-ring 35 is attached to the groove 36. By pressing the spiral reinforcing members 21 and 21a on the O-ring 35 by the pressing claw portion 18a of the hose pressing ring 18, the spiral reinforcing members 21 and 21a are connected to the hose inserting pipe 17 in a more closely contacted state.

In the embodiment of the present invention, the hose connector A is
Although the case of connecting the spiral reinforcing hose 3 has been described in detail, it is also possible to connect the hose connecting tool A to a normal hose having no reinforcing material.

[0043]

According to the present invention, the spiral reinforcing hose is inserted into the hose inserting pipe at the center portion on one end side, and the cap is screwed to the cap attaching cylinder portion around the pipe through the hose pressing ring. , In conjunction with the cap, press the soft thick parts on the upper and lower parts of the spiral reinforcement of the hose with multiple projections provided on the hose pressing ring, and bring the thick part of the hose between the projections. In addition, by pressing the spiral reinforcing material in the hose with the thick wide pressing portion of the pressing claw portion in surface contact with the thick portion, the hose insertion pipe and the spiral reinforcing hose are brought into close contact with each other. Thus, even when the spiral reinforcement hose is used, water leakage can be reliably prevented.

Further, when the spiral reinforcing hose is pressed by the hose pressing ring by the sealing material provided on the outer peripheral surface of the hose inserting pipe, the hose is inserted into the hose inserting pipe by the projection of the pressing claw portion of the ring. By pressure-bonding to the sealing material provided on the outer peripheral surface of the sheet, the adhesion can be further enhanced and water leakage can be reliably prevented.

Further, the hose connector of the present invention can be connected to a normal hose by a hose pressing ring or the like without water leakage even if a normal hose is connected.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a faucet connector as one form of a hose connector according to the present invention.

FIG. 2 is a cross-sectional view showing an internal structure of an embodiment of the connector.

FIG. 3 is an exploded perspective view of the connector.

FIG. 4 is a cross-sectional view showing a tightened state of a cap of the connector.

FIG. 5 is a cross-sectional view showing a tightened state of a cap of the connector.

FIG. 6 is a cross-sectional view showing a modified example of the connector.

[Explanation of symbols] 3 Hose 9a Male thread 9b Cap mounting cylinder 17 Hose insertion pipe 18a Pressing claw 18d Hose pressing surface 18e Protrusion 18f Protrusion 19 Tightening cap 21 Spiral reinforcing member 21a Spiral reinforcing member

Claims (6)

[Claims] 1. A hose insertion pipe (1
7) and the cap mounting cylinder (9b) concentrically around the pipe (17), and the hose (3) can be inserted through the outer peripheral surface of the cap mounting cylinder (9b). Forming a male screw part (9a) to be screwed with the cap (19), and providing a large number of circumferentially spaced spaces between the tightening cap (19) and the hose inserting pipe (17). The hose pressing ring (18) having the pressing claw (18a) is interposed, and the pressing claw (18a) is screwed into the spirally reinforced hose (3) in conjunction with the screwing of the tightening cap (19).
In the hose connector that can be pressed against the outer peripheral surface of the ring, project a plurality of projections (18e) (18f) on the inner surface of the hose pressing ring (18) at regular intervals in the axial direction of the ring (18). A hose connector characterized in that the hose (3) can be pressed between the protrusions (18e) and (18f) while being installed. 2. The pressing claws (18) of the hose pressing ring (18)
On the inner surface of (a), a thick wide pressing portion (18c) that presses the hose (3) by surface contact is provided, and a hose pressing surface (18d) is formed inside the pressing portion (18c). Same hose pressing surface
A plurality of protrusions (18e) and (18f) are provided on (18d) at regular intervals in the axial direction of the ring (18), and each protrusion (1
The hose connector according to claim 1, wherein the hose (3) can be pressed between 8e and 18f. 3. A wide pressing portion (18) of the hose pressing ring (18).
The hose connector according to claim 2, characterized in that the spiral reinforcing member (21) housed in the hose (3) can be pressed by the hose pressing surface (18d) provided in c). 4. The wide pressing portion (18) of the hose pressing ring (18)
On the hose pressing surface (18d) provided on c), a plurality of protrusions (1) for pressing the spiral reinforcing member (21) in the hose (3) by one pitch or more.
The hose connector according to claim 2, wherein 8e) and (18f) are provided in a protruding manner. 5. The projections (1) provided on the hose pressing ring (18).
The hose connector according to any one of claims 1 to 4, wherein a sealing material (34) is attached to the outer peripheral surface of the hose insertion pipe (17) between 8e) and (18f). 6. The projections (1) provided on the hose pressing ring (18).
The hose connector according to any one of claims 1 to 4, wherein an O-ring (35) is attached to the outer peripheral surface of the hose insertion pipe (17) between 8e) and (18f).