JPH06117586A - Hose connector - Google Patents

Abstract

PURPOSE:To provide a hose connector which can prevent leakage of water when a spirally reinforced hose is connected to a faucet or the like. CONSTITUTION:In a hose connector provided at the center part of its one end part with a hose insertion pipe 17 and at the periphery of the pipe with a cap attaching cylindrical part 9b concentric therewith, A spiral bead part adapted to be engaged with a spirally reinforced hose 3 is formed at the outer peripheral surface of the hose insertion pipe 17. Further, a male thread part 9a engaged with a hose fastening cap 19 into which the spirally reinforced hose 3 can be inserted, is formed at the outer peripheral surface of the cap attaching cylindrical part 9b. Further, a hose press ring incorporating several press pawl parts at circumferential intervals, is interposed between the fastening cap 19 and the hose insertion pipe 17, and the press pawl parts are pressed against the outer peripheral surface of the spirally reinforced hose in association with screwing of the fastening cap.

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 spiral reinforcing hose to a faucet, a sprinkling nozzle, and other water supply sources or liquid supply sources.

[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 reinforcing 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 reinforcing hose become uneven due to the presence of the reinforcing wire. In addition, there is a drawback in 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]

DISCLOSURE OF THE INVENTION The present invention provides a hose inserting pipe in which a hose inserting pipe is provided in a central portion on one end side, and a cap attaching cylindrical portion is concentrically provided around the pipe. Form a spiral ridge on the outer peripheral surface of the spiral mounting hose to which the spiral reinforcing hose can be attached, and form an external thread on the outer peripheral surface of the cap mounting tube to which the spiral reinforcing hose can be inserted and to which the hose tightening cap is screwed. In addition, a hose pressing ring having a large number of pressing claws at intervals in the circumferential direction is interposed between the tightening cap and the hose insertion pipe, and is interlocked with screwing of the tightening cap. ,
The present invention relates to a hose connector characterized in that a pressing claw portion can be pressed against an outer peripheral surface of a spiral reinforcing hose.

The present invention also provides, in the above structure,
The spiral ridge of the hose insertion pipe is formed of a spiral protrusion having a rounded mountain-shaped cross section, and the claw width of the pressing claw is provided in the spiral reinforcing hose with a plurality of spiral reinforcing members. It is also characterized by the fact that it spans across.

[0008]

【Example】

(Embodiment 1) Hereinafter, the structure of the hose connector A according to the present invention will be specifically described with reference to the embodiments shown in the accompanying drawings.

The hose connector A according to the present invention can be suitably used not only for faucets but also for sprinkler nozzles and other places where hose connections are required.
Hereinafter, description will be made with reference to the case where it is used for a faucet.

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

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 to mount and fix 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 fitting female portion 7 is a female portion forming tubular body 8 which is fitted to the male fitting 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 cylinder 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 8a of the detachable cylinder 13, there is provided a short protrusion 13a for pressing the connecting claw 10 from the rear side. The connecting claw 10 is projected by the portion 13a to connect the connecting tool 2 and the fixing tool 4.

A spring 15 is attached to the detachable cylinder 13, and the detachable cylinder 13 is urged to slide upward by the spring 15 so that the connecting claw 10 connects the connector 2 and the fixture. I am trying to connect with 4.

Further, in this embodiment, a concave space 16 for releasing the connection by the connecting claw 10 is provided above the protrusion 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 fixture 4 and the connection tool 2, and tap water is supplied to the spiral reinforcement hose 3 via the flow path R. To send water.

Further, in this embodiment, a ring accommodating groove 30 is provided on the outer peripheral surface of the fitting recess of the fixture 4, and a flexible O-ring 31 is attached to the groove 30 so that the female of the connector 2 can be fitted. The inner peripheral surface 8a of the part forming cylinder 8 is crimped.

Further, a packing accommodating recess 32 is provided from the inner peripheral portion 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, the hose connecting tube 9 has a cap mounting tube 9b having an external thread 9a formed on the outer peripheral surface thereof, and a small-diameter hose inserting pipe 17 concentrically arranged in the cap mounting tube 9b. The hose insertion pipe 17 is formed from the and the outer peripheral surface of the hose insertion spiral protrusion 20 at a predetermined pitch.
The spiral reinforcing hose 3 is fitted and connected to the spiral protrusion 20.

By the way, as shown in FIG. 2, the spiral reinforcing hose 3 is a spiral ridge provided with a hard reinforcing member 21 on the inside or surface of the wall of the hose body and on the outer peripheral surface of the hose inserting pipe 17. It is embedded in a state of being spirally wound at the same pitch as the portion 20.

Therefore, when the spiral reinforcing hose 3 is inserted into and fitted into the hose inserting pipe 17, the reinforcing member 21 has the spiral protruding portion 20.
The ridges 20a are fitted into the spiral groove portion 20b between the ridges 20a, 20a, while the ridges 20a form the reinforcing member 21 of the spiral reinforcement hose 3.
It will be fitted with the soft thick part in between.

Therefore, the spiral reinforcement hose 3 can be connected to the hose insertion pipe 17 in a close contact state, and even when the spiral reinforcement hose 3 is used, water leakage can be reliably prevented.

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.

The hose pressing ring 18 has a plurality of cut grooves 18b from the upper and lower end surfaces, and the groove 18b is a cut groove 18b from the lower end surface.
b is long and the kerf 18b from the top surface is the kerf 18 from the bottom surface.
It is short between b and each kerf 18
A claw portion 18a is formed at a portion between b and 18b. Then, a mountain-shaped protrusion 18c is provided on the inner peripheral side of each pressing claw portion 18a to prevent slipping.

Therefore, the pressing claw portion 18a of the hose pressing ring 18 can be pressed against the outer peripheral surface of the spiral reinforcing hose 3 in conjunction with the screwing of the tightening cap 19. That is, the helical reinforcing member 21 and the thick portion between the pitches thereof can be pressed against the hose inserting pipe 17 by the pressing force in the inner diameter direction of the pressing claw portion 18a whose tip portion is divided. As a result, the spiral reinforcement hose 3 is further closely attached to the hose insertion pipe 17
It is possible to prevent water leakage 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, and at the same time, to improve the spiral reinforcement hose 3
Can be projected outward, and the pressing force of the tip of the pressing claw portion 18a can be sufficiently received.

Further, in FIG. 2, the spiral projection 20 and the spiral reinforcing hose 3 provided on the hose inserting pipe 17 are both double-threaded screws, but according to the number and pitch of the spiral reinforcing hose 3, the spiral projecting portion is formed. It shall have 20 threads and pitch.

(Embodiment 2) Further, the spiral reinforcement hose 3 in FIG. 4 has a cylindrical shape made of a soft material, in which the outer surface of the hose insertion pipe 17 is made smooth and the spiral projection 20 is provided on the outer surface. The adapter 40 is detachably attachable.

Therefore, when the adapter 40 is not attached, a normal hose can be attached to the hose inserting pipe 17. On the other hand, by mounting the adapter 40, the spiral reinforcement hose 3 described above can be mounted easily and surely.

In order to use the hose connector A of the present invention, first, the spiral reinforcing hose 3 is passed through the tightening cap 19 and the hose mounting ring 18, and then the hose connecting pipe 17 in the hose connecting tube 9 is inserted. , The spiral reinforcement hose 3 to the reinforcement member 21
After mounting the hose 3 while twisting it in the spiral direction, move the hose mounting ring 18 to the upper part of the hose inserting pipe 17, and then completely attach the tightening cap 19 to the hose connecting cylinder 9. It is screwed on.

Then, the upper fitting female part of the hose connector A to which the spiral reinforcement hose 3 is closely attached is fitted to the fitting male part of the fixture 4 fixed to the faucet 1 or the like, and spiral reinforcement is carried out. The connection between the hose 3 and the faucet 1 is completed.

(Embodiment 3) FIG. 5 and FIG. 6 show another embodiment. In this embodiment, the spiral protrusion 20 of the hose inserting pipe 17 has a rounded mountain-shaped cross section. It has a feature.

With such a chevron cross section, not only can the spiral reinforcement hose 3 as shown in FIG. 5 be attached to the hose insertion pipe 17 in a watertight state, but as shown in FIG. A normal hose 50 can be similarly attached to the hose insertion pipe 17 in a watertight state.

(Embodiment 4) Further, FIG. 7 shows another embodiment. In this embodiment, as the spiral reinforcement hose 3, an inner pipe 60 and an outer pipe forming a flexible double pipe are formed. A hose insertion pipe 17 is configured by spirally interposing a first reinforcing member 62 having a substantially rectangular cross section and a second reinforcing member 63 having a circular cross section in an annular gap between the hose insertion pipe 61 and It can be screwed and installed.

Although the hose connector A according to the present invention has been described above with reference to some embodiments, FIGS.
On the circumference of the hose insertion pipe 18, the pressing form occurring in the spiral reinforcement hose 3 is shown. In this way, the spiral reinforcement hose 3 is attached to the hose insertion pipe in any state.
Can be pressed to 17.

That is, in FIG. 8, the pressing claw portion 18a of the hose mounting ring 18 has a bifurcated shape, and the spiral reinforcing hose 3 is
The reinforcing member (21) embedded therein is pressed by the pressing claw portion (18a).

In FIG. 9, one claw of the pressing claw portion 18a presses the reinforcing member 21, and the other claw presses the soft portion between the reinforcing members 21 and 21.

In FIG. 10, the pressing claw portion 18a is a reinforcing member.
It is designed to press the soft part between 21,21.

When the spiral reinforcing hose 3 does not have sufficient strength as in the embodiment shown in FIG. 11, the claw width of the pressing claw portion 18a is wide enough to straddle a plurality of reinforcing members 21. It is possible to use a hose mounting ring 18 which can be configured to prevent the pressing force from being distributed on the spiral reinforcing hose 3 by distributing the pressing force.
It is possible to prevent the spiral reinforcing hose 3 from being cut by the pressing claw portion 18a.

[0048]

The hose connector of the present invention is a hose connector in which a hose inserting pipe is provided in the central portion on one end side, and a cap mounting cylinder is concentrically provided around the pipe. Form a spiral ridge on the outer peripheral surface of the spiral mounting hose to which the spiral reinforcing hose can be attached, and form an external thread on the outer peripheral surface of the cap mounting tube to which the spiral reinforcing hose can be inserted and to which the hose tightening cap is screwed. In addition, a hose pressing ring having a large number of pressing claws at intervals in the circumferential direction is interposed between the tightening cap and the hose insertion pipe, and is interlocked with screwing of the tightening cap. ,
The pressing claw portion can be pressed against the outer peripheral surface of the spiral reinforcing hose.

Therefore, when the spiral reinforcing hose is inserted and fitted into the hose inserting pipe, the reinforcing wire is fitted into the spiral groove portion between the ridges of the spiral ridge portion, while the ridge portion is spirally reinforced. Although it will be fitted with a soft thick part between the reinforcing wire of the hose, the pressing claw can be strongly pressed against the outer peripheral surface of the spiral reinforcing hose in conjunction with the screwing of the tightening cap. The fitting can be done tightly, and water leakage can be surely prevented even when the spiral reinforcing hose is used.

The present invention also has the above-mentioned structure.
It is also characterized in that the spiral protrusion of the hose inserting pipe is formed from a spiral protrusion having a rounded mountain-shaped cross section.

In this case, not only the spiral reinforcement hose but also an ordinary hose having a smooth surface can be fitted and connected.

[Brief description of drawings]

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

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

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

FIG. 4 is a cross-sectional view showing the internal structure of another embodiment of the hose connecting tool when another type of spiral reinforcing hose is attached.

FIG. 5 is a cross-sectional view showing the internal structure of another embodiment of the hose connecting tool when another type of spiral reinforcing hose is attached.

FIG. 6 is a cross-sectional view showing the internal structure of another embodiment of the hose connector when a normal hose is attached.

FIG. 7 is a cross-sectional view showing the internal structure of another embodiment of the hose connector when another type of spiral reinforcing hose is attached.

FIG. 8 is an explanatory view of a pressing form of the spiral reinforcing hose by the pressing claw portion.

FIG. 9 is an explanatory diagram of a pressing form of the spiral reinforcing hose by the pressing claw portion.

FIG. 10 is an explanatory diagram of a pressing form of the spiral reinforcing hose by the pressing claw portion.

FIG. 11 is an explanatory diagram showing a modified example of the pressing claw portion.

[Explanation of sign]

 1 Faucet 2 Connector 3 Spiral Reinforcement Hose 4 Fixing Tool 6 Fitting Male Part 7 Fitting Female Part 9 Hose Connecting Tube 9a Male Thread 9b Cap Mounting Tube 17 Hose Insert Pipe 18a Press Claw 19 Tightening Cap 19a Female thread 20 Spiral ridge for hose mounting 21 Spiral reinforcement member

Claims (3)

[Claims] 1. A pipe for inserting a hose (17) at the center of one end side.
In the hose connector in which the cap mounting tube portion (9b) is concentrically provided around the pipe (17), the spiral reinforcement hose (3) is provided on the outer peripheral surface of the hose insertion pipe (17).
A spiral ridge (10) that can be attached to is formed, and a hose tightening cap (19) into which the spiral reinforcement hose (3) can be inserted is screwed to the outer peripheral surface of the cap mounting cylinder (9b). Male thread
(9a), and a hose pressing ring having a large number of pressing claws (18a) circumferentially spaced between the tightening cap (19) and the hose inserting pipe (17). (18), interlocking with the screwing of the tightening cap (19),
A hose connector characterized in that 8a) can be pressed against the outer peripheral surface of the spiral reinforcement hose (3). 2. A spiral ridge (10) of a hose insertion pipe (17).
The hose connector according to claim 1, wherein the hose connector is formed from a spiral protrusion (20) having a rounded mountain-shaped cross section. 3. A spiral reinforcing hose having a claw width of the pressing claw portion (18a)
(3) The hose connector according to claim 1, wherein the hose connector has a width across which a plurality of spiral reinforcing members are provided.