JP2002130571A - Hose coupling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a hose from rupture by making not to apply high pressure to the hose connected, and also to stop a flow when the amount of flowing water is made to exceed the maximum amount of flowing water under the normal condition largely in a hose coupling for connecting the hose to a bibcock. SOLUTION: In the hose coupling in which a retractably connecting cylindrical portion d is joined as an integrality or integrally against a fitting cylindrical portion c provided in the hose connecting portion b for connecting the hose 2 or in the hose connecting portion b of an another article to a body 3 of a bibcock mounting portion connected securely to the bibcock 1, a structure V of a pressure-reducing valve of which the side of the bibcock mounting portion a is appointed as a primary side and either the side of the hose connecting portion b or the side of the connecting cylindrical portion d is appointed as a secondary side is incorporated in an intermediate portion of a flow passage u between the bibcock mounting portion a within its body 3 and the hose connecting portion b or between the bibcock mounting portion a and the connecting cylindrical portion d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose joint for connecting a hose to a water tap. More specifically, the hose connected to the faucet is fitted with a water stop valve at the end of the hose, which is used when watering and discharging water while performing a temporary water stop operation at the end of the hose. The present invention relates to a hose coupling fixed to a faucet for use.

[0002]

2. Description of the Related Art A hose joint A used when a water shutoff valve is mounted on a distal end side of a hose to be connected as described above is, for example, as shown in FIG. A faucet mounting part a, which is formed in a ring shape or a cylindrical shape fitted to the outer periphery of the faucet 1 and is fixedly mounted by being inserted into the faucet 1 and fastened with fastening screws 10. Inner tube 20 into which hose 2 is inserted and outer tube 2 whose diameter for tightening the outer periphery of hose 2 inserted is freely expandable and contractable.
1 and a tightening ring 2 screwed to the outer circumference to tighten it
And the hose connection part b consisting of 2 is integrally connected,
After the faucet mounting part a is fixedly mounted on the faucet 1, the hose 2 is inserted into the hose connecting part b, and the hose 2 is connected by tightening the tightening ring 22.

[0003] As shown in FIGS. 11 and 12, a hose 2 is fitted to a ring-shaped faucet mounting portion a which is fitted to a water tap 1 and fixedly mounted with a fixing screw 10.
Is formed separately, a nipple-shaped connecting cylinder portion d is integrally or integrally connected to the faucet mounting portion a, and a hose connecting portion b is formed in the hose connecting portion b. ,
A fitting tube portion c that is removably fitted and connected and fixed to the nipple-shaped connection tube portion d is integrally connected, and after the faucet attaching portion a is fixedly attached to the faucet 1, By fitting the fitting tube c connected to the hose connection b to which the hose 2 is connected, the hose 2 is connected to the faucet 1 as shown in FIG. The sliding piece 23 slidably fitted in the axial direction on the outer circumference of the fitting tubular portion c from the state is slid downward in FIG. 12, so that the locking piece 24 moves outward to form a nipple-like connection. There is a type in which the hose connection portion b is detached from the peripheral surface of the tube portion d and the hose connection portion b can be removed from the connection tube portion d.

[0004]

The above-mentioned conventional hose joint is provided with a faucet mounting part a for the faucet 1 of the water supply in correspondence with a case where a water stop valve on the distal end side of the hose to be connected is mounted.
Of the hose 2 and the connection of the hose 2 to the hose connection part b are configured so as not to escape even by opening and closing the water stop valve at the distal end side of the hose 2, but recently, Approximately 5 kg / cm ^{2 of} tap water
To this extent, various inconveniences have arisen during use.

[0005] That is, when water is stopped by the water stop valve on the distal end side of the connected hose, there is a problem that the hose swells and breaks due to the application of high water pressure to the hose. There is a problem that the hose comes out of the joint when the hose is heated and becomes flexible due to the sunshine. Also, when connecting the hose to the faucet, the hose fitting should be assembled with the faucet mounting part attached to the faucet, and the hose should be connected and connected to the hose connection part. When not using the hose, close the faucet and Is designed and manufactured based on the concept that the hose is to be removed from the hose connection, and no measures have been taken against the problems described above. Since water is stopped only by closing the water stop valve and the faucet is often left unclosed,
There is a problem that an unexpected big accident may occur due to the rupture or escape of the hose due to the high pressure of tap water.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem which has occurred in a conventional hose joint, and prevents high pressure from being applied to a hose to be connected to prevent the hose from being ruptured. It is an object of the present invention to provide a new hose coupling which stops the flow when the flow rate greatly exceeds the normal maximum flow rate.

[0007]

In the present invention, as a means for achieving this object, a hose connecting portion b for connecting the hose 2 to the body 3 of the faucet mounting portion a fixedly connected to the faucet 1 is provided. In the hose joint A integrally or integrally connected, the faucet mounting portion a in the body 3 thereof
A pressure reducing valve mechanism V having a faucet mounting part a side as a primary side and a hose connecting part b side as a secondary side in a flow path u between the hose connecting part b and
And a hose fitting part a fixedly connected to the faucet 1 and a hose connecting part b separate therefrom, and the body 3 of the faucet fitting part a In a hose joint in which a nipple-shaped connecting tube portion d which is removably fitted to a fitting tube portion c provided in a hose connecting portion b is integrally or integrally connected, a faucet mounting portion a in a body 3 thereof. And a nipple-shaped connecting cylinder d provided thereon
A hose joint incorporating a pressure reducing valve mechanism V with the faucet mounting part a side as the primary side and the connecting cylinder part d side as the secondary side is proposed in the flow path u between the two and further fixedly connected to the faucet 1. A connecting tube portion d that is detachably connected to a hose connecting portion b that connects the hose 2 to the body 3 of the faucet mounting portion a or a fitting tube portion c provided in a separate hose connecting portion b is integrally or integrally connected. Flow passage u between the faucet mounting part a in the body 3 and the hose connection part b or the connection cylinder part d in the hose joint A
A shutoff valve 70 that moves in the axial direction due to a change in the flow rate of the flow passing through the flow path u downstream; a shutoff spring 71 that urges the shutoff valve 70 upstream; And a valve seat 7 provided integrally with the hose connection part b or the connection cylinder part d opposite thereto.
A hose joint incorporating a shutoff valve mechanism W composed of 3 or the like is proposed.

[0008]

DETAILED DESCRIPTION OF THE INVENTION
A faucet mounting part a which is formed in a ring shape or a tubular shape, is fitted and inserted into the discharge cylinder part 1a of the water faucet 1 and is fixedly mounted on the faucet 1 by fastening with a fixing screw 10, and an inner cylinder into which the hose 2 is inserted. 2
0 and an outer cylinder 21 whose outside diameter expands / contracts, and a hose connection portion b having a fastening ring 22 screwed to the outer periphery of the outer cylinder 21 are integrally or integrally connected and connected to form the body 3. As shown in FIG. 1, the hose joint A in the formed form has a downstream side (distal end side) hose which is discharged from the faucet 1 into the faucet mounting part a in the lumen of the body 3 thereof. The pressure reducing valve mechanism V is incorporated into the flow path u of the tap water flowing to the connection part b such that the primary side thereof is located on the faucet mounting part a side and the secondary side is located on the hose connection part b side.

At this time, the body 3 extends an intermediate portion between the faucet mounting portion a fitted to the faucet 1 and the hose connection portion b in the axial direction (up and down direction in FIG. 1) to form the intermediate body portion 3.
a may be formed, and a cylindrical chamber 6 may be formed in the inner cavity of the chamber, and the pressure reducing valve mechanism V may be stored therein.

[0010] The pressure reducing valve mechanism V is a tap water which is discharged from the discharge cylinder 1a of the faucet 1 into the faucet mounting part a and directed to the hose 2 connected to the hose connection part b and flows through the flow path u in the body 3. Any structure may be used as long as it functions so as to control the pressure to reduce the pressure to a predetermined constant pressure, and may be appropriately configured. However, as in the embodiment shown in FIG. A cylindrical valve 40 that moves in the axial direction due to a pressure change, a pressure reducing spring 41 that biases the cylindrical valve 40 to the secondary side, and a cylindrical valve 40
It is effective to provide a uniaxial pressure-reducing valve mechanism V constituted by a valve portion 43 provided at an end portion toward the primary side and a valve seat 44 fixed to the body 3 so as to face the valve portion 43. .

At this time, a partition wall 5 is provided integrally or integrally with the body 3 in an intermediate portion in the axial direction of the intermediate body portion 3a, and a cylindrical valve 40 slides in a central portion thereof. A through hole 50 to be freely inserted is formed, and a flow path u in the body 3 is formed.
Is divided into a primary side which is closer to the faucet mounting part a side than the partition wall 5 and a secondary side which is closer to the hose connection part b side than the partition wall 5. Is disposed integrally with the body 3, a valve seat 44 is provided at a central portion of the body 3, and a cylindrical chamber 6 is formed in the secondary flow path u. The pressure-sensitive plate 42 of the cylindrical valve 40 is stored so as to be movable in the axial direction, and the valve portion 43 side of the cylindrical valve 40 connected to the pressure-sensitive plate 42 is inserted into a through hole 50 opened in the center of the partition wall 5. The pressure reducing spring 41 for urging the pressure sensitive plate 42 to the secondary side is provided between the partition wall 5 and the pressure sensitive plate 42 by making the valve portion 43 at the end thereof face the valve seat 44 described above. To be suspended.

The partition wall 5 provided in this manner is formed separately from the body 3 as shown in FIG. 2, is inserted into the body 3, and is integrally connected to the body 3 together with the valve seat 45. You may be made to assemble it.

The hose joint A thus constructed is
When the faucet mounting part a is fitted to the faucet 1 and the hose 2 is connected to the hose connection part b for use, the pressure of tap water discharged from the faucet 1 is regulated by the pressure-reducing valve mechanism V to a predetermined value. Use a low pressure. When the discharged pressure is high, the pressure-sensitive plate 42 moves to the primary side due to an increase in the pressure on the secondary side on the hose connection part b side, and the distance between the valve part 43 and the valve seat 44 is shown in FIG. In this way, the flow rate of tap water flowing down is reduced, the pressure on the secondary side is lowered, and a constant pressure is maintained.

Also, as shown in FIG.
However, a faucet mounting part a fitted to the faucet 1 and a hose connecting part b for connecting the hose 2 are formed separately, and a nipple-shaped connecting cylinder part d provided on the faucet mounting part a side is provided. When the fitting tube portion c provided on the hose connection portion b side is detachably fitted and connected to each other, the body 3 formed by the faucet attachment portion a and the connection tube portion d The pressure reducing valve mechanism V is incorporated in the apparatus.

The pressure reducing valve mechanism V incorporated in the body 3 formed by the faucet mounting part a and the connection cylinder part d is a pressure reducing valve incorporated in the body 3 formed by the faucet mounting part a and the hose connection part b. As with the mechanism V, any function may be used as long as it has a function of controlling the pressure so as to reduce the pressure of tap water to a predetermined constant pressure, and may be appropriately configured. The same applies to the case where the secondary side is incorporated in the body 3 such that the secondary side is located on the side of the connection cylinder portion d.

Also, the body 3 incorporating the pressure reducing valve mechanism A is different from the body 3 of the above-described example only in that the portion connected to the faucet mounting portion a is a connection tube portion d instead of the hose connection portion b. Instead, an intermediate portion between the faucet mounting portion a and the connection tube portion d is formed to be long in the axial direction to form an intermediate body portion 3a, and a chamber 6 is formed in a bore of the intermediate body portion 3a. The mechanism V may be incorporated.

In the example shown in FIG. 3, a single-shaft pressure reducing valve mechanism V having the same configuration as that of the example shown in FIGS. 1 and 2 is incorporated. The same reference numerals are given to the members.

The hose joint A of this embodiment has a hose connection in which a faucet mounting portion a is fitted to a faucet 1, and a hose 2 is connected to a nipple-shaped connecting cylinder d forming a body 3 continuously therefrom. When the fitting cylinder part c provided in the part b is fitted and connected and used, the pressure of tap water discharged from the faucet 1 is
As shown in FIG. 4, the pressure is reduced to a predetermined pressure by the pressure regulating operation of the pressure reducing valve mechanism V provided in the body 3, and the secondary side is closed by closing the water stop valve on the distal end side of the hose 2. When the pressure increases, as shown in FIG. 5, the pressure reducing valve mechanism V closes, shuts off water discharge to the secondary side, and prevents the pressure increase on the secondary side.

Next, FIG. 6 shows the case where the hose joint A is used with the water shutoff valve attached to the distal end side of the hose 2 connected to the faucet 1 by closing the water shutoff valve. In order to deal with an accident caused by leaving the faucet 1 open, the water is automatically stopped when the hose 2 escapes or bursts, so that the inside of the body 3 of the faucet mounting part a is controlled. Shows means incorporating a shut-off valve mechanism W.

Also in this means, even if the hose joint A has a form in which the hose connecting portion b is integrally or integrally connected to the body 3 of the faucet mounting portion a as shown in FIG. As shown in FIG. 7, a connecting tube portion d which is detachably fitted to and connected to a fitting tube portion c provided in a separate hose connection portion b and is connected to the body 3 of the faucet mounting portion a. Or, even if the connection is made integrally, the shutoff valve mechanism W
Is incorporated into the flow path u of tap water flowing from the faucet mounting part a and flowing toward the hose connection part b or the connection cylinder part d in the body 3 of the faucet mounting part a.

The shut-off valve mechanism W is connected to a flow path u in the body 3.
If the flow rate of tap water flowing downstream of the body 3 becomes equal to or more than a specified flow rate, the function may be such that the flow is stopped in the body 3, and the structure may be appropriately configured.

In the example shown in FIGS. 6 and 7, an intermediate portion between the faucet mounting portion a and the hose connection portion b or the connection tube portion d of the body 3 is extended in the axial direction to extend this body. 3, a cylindrical chamber 6 is formed in the intermediate body 3a, and a resistance ring 7 is fitted slidably in the axial direction at an end of the faucet mounting part a on the upstream side of the inner cavity of the chamber. A body of a shut-off valve 70 is integrally or integrally provided at a central portion thereof, and a bowl-shaped valve portion 72 is provided at an end on the front end side of the shut-off valve 70 toward the downstream side. 70,
A shut-off spring 71 mounted between the inner wall surface on the downstream side of the chamber 6 and the resistance ring 7 is urged upstream by a shut-off spring 71. Valve seat 7 opposed to valve portion 72 provided at the distal end
When the flow rate of the tap water flowing through the flow path u becomes equal to or greater than the specified flow rate by providing the ring 3 in a ring shape, the water flow flows down the resistance ring 7 so that the shutoff valve 70 is pushed out to the downstream side, and As shown in FIG. 8, the valve section 72 abuts against the valve seat 73 to constitute a shutoff valve mechanism W for shutting off the flow path u.

Next, FIG. 9 shows an example in which the shut-off valve mechanism W is incorporated in the body 3 together with the above-mentioned pressure reducing valve mechanism V.

In this example, the intermediate body 3 of the body 3
a is further extended in the axial direction further than the intermediate body 3a of the example of the hose joint A in which one of the pressure reducing valve mechanism V and the shutoff valve mechanism W is incorporated in the body 3; A pressure reducing valve mechanism V and a shutoff valve mechanism W are assembled in parallel in that order from the upstream side in the axially long chamber 6 formed by the above.

The pressure reducing valve mechanism V and the shutoff valve mechanism W
Has the same configuration as that of the example shown in FIGS. 1 to 5 and FIGS. 6 to 8, and the same components are denoted by the same reference numerals.

The pressure reducing valve mechanism V shown in FIG.
In a case where both of the connection valve section W and the shutoff valve mechanism W are incorporated in the body 3, the connecting cylinder section d is connected to the body 3 of the faucet mounting section a. Even if the part b is connected, the pressure reducing valve mechanism V and the shutoff valve mechanism W may be similarly incorporated in the body 3.

[0027]

As described above, the hose coupling according to the present invention has a pressure reducing valve mechanism and / or a shutoff valve mechanism incorporated in the body of the faucet mounting portion. A hose is connected to the faucet with a hose joint, and a water stop valve is attached to the end of the hose. When spraying or discharging water, high pressure is not applied to the hose, which prevents the hose from bursting. ,Also,
Even if the hose ruptures or escapes, the flow will automatically stop, so even if the water stop valve is closed without closing the faucet, a major accident is prevented. It is safe.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a hose joint for implementing the means of the present invention.

FIG. 2 is an explanatory view of the operation of the hose joint.

FIG. 3 is a vertical sectional side view of another example of the hose joint according to the first embodiment.

FIG. 4 is an explanatory view showing a state where the pressure on the secondary side of the hose joint is adjusted.

FIG. 5 is an explanatory view showing a state where the pressure on the secondary side of the hose joint is increased and the valve is closed.

FIG. 6 is a vertical sectional side view of an example in which a shut-off valve mechanism is incorporated in the body of the hose joint.

FIG. 7 is a longitudinal sectional side view of another embodiment of the hose joint.

FIG. 8 is an explanatory view showing a state in which a flow rate exceeding a prescribed value flows through the hose joint and the shutoff valve is closed.

FIG. 9 is a longitudinal sectional side view of an example in which both the pressure reducing valve mechanism and the shutoff valve mechanism are incorporated in the body of the hose joint.

FIG. 10 is a longitudinal sectional side view of a conventional hose joint.

FIG. 11 is a perspective view of a conventional hose joint of a separate type.

FIG. 12 is a longitudinal sectional view showing a state where the hose joint is connected.

[Explanation of symbols]

A: hose joint, V: pressure reducing valve mechanism, single-shaft pressure reducing valve mechanism, W
... shut-off valve mechanism, a ... faucet mounting part, b ... hose connection part, c
... fitting cylinder, d ... connection cylinder, u ... flow path, 1 ... faucet, 1a
... Discharge cylinder part, 10 ... Set screw, 2 ... Hose, 20 ... Inner cylinder, 21 ... Outer cylinder, 22 ... Tightening ring, 23 ... Slide cylinder, 24 ... Locking piece, 3 ... Body, 3a ... Intermediate cylinder Part, 40
... Cylindrical valve, 41 ... Pressure reducing spring, 42 ... Pressure sensitive plate, 43 ... Valve part, 44 ... Valve seat, 45 ... Valve seat fitting, 5 ... Partition wall, 50 ...
Through-hole, 6: chamber, 7: resistance ring, 70: blocking piece, 71: blocking spring, 72: valve portion, 73: valve seat.

Claims (7)

[Claims] 1. A hose joint A in which a hose connecting portion b for connecting a hose 2 to a body 3 of a faucet mounting portion a fixedly connected to the faucet 1 is integrally or integrally connected. A hose joint in which a pressure reducing valve mechanism V having a faucet mounting part a side as a primary side and a hose connection part b side as a secondary side is incorporated in a flow path u between the mounting part a and the hose connection part b. 2. A faucet mounting part a fixedly connected to the faucet 1 and a hose connecting part b separate from the faucet mounting part. A fitting cylindrical part provided on the hose connecting part b is provided on the body 3 of the faucet mounting part a. In a hose joint in which a nipple-shaped connecting cylinder part d which is fitted into and pulled out of the body c is integrally or integrally connected, a faucet mounting part a in the body 3 thereof and a nipple-shaped connecting cylinder part d provided therein. A hose joint incorporating a pressure reducing valve mechanism V having a faucet mounting part a side as a primary side and a connecting cylinder part d side as a secondary side in a flow path u between the two. 3. A cylindrical valve 40 that moves a pressure reducing valve mechanism V in the axial direction by a change in pressure on a secondary side received by a pressure sensitive plate 42, and a pressure reducing spring 41 that urges the cylindrical valve 40 to the secondary side. And a valve portion 43 provided at an end of the cylindrical valve 40 toward the primary side.
And a valve seat 44 fixed to the body so as to face the same.
The hose joint according to claim 1 or 2, wherein the single-shaft pressure reducing valve mechanism (V) is made of the same. 4. A body 3 of a faucet mounting part a fixedly connected to the faucet 1 can be freely inserted into and removed from a hose connecting part b for connecting the hose 2 or a fitting cylinder part c provided on a separate hose connecting part b. In the hose joint in which the connecting tube portion d is integrally or integrally connected, between the faucet mounting portion a and the hose connecting portion b in the body 3 or between the faucet mounting portion a and the connecting tube portion d.
A partition wall 5 integrally or integrally fixed to the body 3 is formed at an intermediate portion of the flow path u between the first and second passages, and a through-hole 50 is formed at a central portion to allow the cylindrical valve 40 to move in the axial direction. The flow path u is divided into a faucet mounting portion a serving as a primary side and a hose connection portion b side or a connection cylindrical portion d serving as a secondary side. A valve seat fitting 45 provided with a seat 44 is provided integrally with the body 3, a cylindrical chamber 6 is provided in a secondary channel u, and a cylindrical valve 40 is provided in the chamber 6.
Of the cylindrical valve 40 is stored so as to be movable in the axial direction.
The valve portion 43 side is passed through a through hole 50 at the center of the partition wall 5 so as to face the valve seat 44, and a pressure reducing spring 41 for urging the cylindrical valve 40 to the secondary side is connected to the pressure sensitive plate 42 and the partition wall. Hose joint suspended between 5. 5. A hose connecting portion b for connecting the hose 2 to the body 3 of the faucet mounting portion a fixedly connected to the faucet 1 or a connecting tube portion c provided on a separate hose connecting portion b so as to be detachably connected. In the hose joint in which the connection tube portion d is integrally or integrally connected, the flow passage u is connected to the flow passage u between the faucet mounting portion a in the body 3 and the hose connection portion b or the connection tube portion d. A hose joint incorporating a shut-off valve mechanism W that stops the flow in the flow path u when the flow rate flowing downstream is equal to or higher than a specified flow rate. 6. A hose connecting portion b for connecting the hose 2 to the body 3 of the faucet mounting portion a fixedly connected to the faucet 1 or a fitting tube portion c provided on a separate hose connecting portion b so as to be detachably connected. In the hose joint A to which the connection tube portion d is integrally or integrally connected, the flow passage u between the faucet mounting portion a in the body 3 and the hose connection portion b or the connection tube portion d is provided. Valve 70 that moves in the axial direction due to a change in the flow rate of the flow flowing downstream, a shut-off spring 71 that urges the shut-off valve 70 upstream, and is mounted on the end face of the shut-off valve 70 that faces downstream. A hose joint incorporating a valve section 72 and a shut-off valve mechanism W including a valve seat 73 integrally provided in a hose connection section b or a connection cylinder section d opposed thereto. 7. A connecting tube which is connected to a faucet mounting portion a which is fixedly connected to the faucet 1 and which is connected to a hose 3 to a body 3 of a faucet mounting portion a or a fitting tube portion c provided on a separate hose connecting portion b. In the hose joint in which the part d is integrally or integrally connected, a pressure reducing valve mechanism V and a shutoff valve are provided in a flow path u between the faucet mounting part a and the hose connection part b or the connection cylinder part d in the body 3. A hose joint that incorporates the mechanism W in that order from the upstream side.