JP2001159493A - Joint for water faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint for a water faucet general-purpose in use and easy to mount and maintain. SOLUTION: A joint body 1, having a detachable joint member 18 provided at the upstream end of a secondary hose and a step 6 at an upstream portion of an inner wall contains, in the order of the downstream side, a valve seat member 2, a stop valve 4 having a valve element portion 3 at the center, adapted to contact the valve seat member 2 at the upstream side, and an elastic member 5 having one end contacting the step 6 and the other end contacting the stop valve 4 for energizing the stop valve 4 to the downstream side. In the process of connecting the joint member 18 to the joint body 1, the downstream end 14 of the stop valve 4 can about from upstream on a small-diameter portion 21 provided in the downstream of the inner wall of the joint member 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet joint used for, for example, a washing machine.

[0002]

2. Description of the Related Art For example, in order to send water to a washing machine via a hose, a water tap connected to the hose has a valve for adjusting water discharge and water stoppage when the washing machine is used. It is often used in a state, and in such a case, the amount of water used in the washing machine is adjusted by a changeover switch or the like on the washing machine side. Therefore, if a child removes the hose from the faucet, a large amount of water is discharged from the discharge port of the faucet, and there is a risk that a water leak accident may occur downstairs. Therefore, in order to prevent the above-mentioned accidents and the like beforehand, a faucet joint having a function of automatically stopping the discharge of water when the connected hose is disconnected has been devised.

As a conventional faucet coupling as described above, for example, there is one as shown in FIG. That is, in the joint body 29, a valve seat 30, a valve body 31 that can abut on the valve seat 30 from the upstream side, an elastic member 32 for urging the valve body 31 downstream, and an elastic member 32 And a holding member 33 for holding the upstream portion of the above. When the joint body 29 is connected to the joint member 34 provided at the upstream end of a secondary hose (not shown), the push member 35 provided in the joint member 34 is connected to the valve body 31. To the upstream side, and the valve element 31 is separated from the valve seat 30, so that water can flow through the valve seat 30, and in a state where the joint member 34 is removed, the valve element 31 in the joint body 29 is Because of the contact with the valve seat 30, water cannot flow through the valve seat 30. The faucet coupling having such a configuration automatically stops the discharge of water even when the connected hose is accidentally disconnected when the valve of the upstream faucet is open. It will have a function.

[0004]

However, the conventional faucet coupling as described above is provided as a dedicated coupling member 34 provided at the upstream end of the secondary hose and having a protruding member 35 inside. Therefore, it was not versatile and could not be used for general joint members on the market.

Further, the conventional faucet coupling as described above is
The assembly and replacement of parts could not be performed from the downstream side of the faucet joint, but had to be performed from the upstream side, so that work such as installation and maintenance such as replacement of parts became difficult.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a faucet coupling which is versatile and can be easily installed and maintained.

[0007]

In order to achieve the above object, a faucet coupling according to the present invention has a coupling member provided at an upstream end of a secondary hose, which is detachable and is provided at an upstream portion of an inner wall. In the joint body having a step, in order from the downstream side, a valve seat member, a stop valve having a valve body portion that can abut on the valve seat member from the upstream side, and a stop valve having one end at the step and the other end at the step. An elastic member that abuts the stop valve and biases the stop valve to the downstream side, and in a process in which the joint member is connected to a joint body, the downstream end of the stop valve is The small diameter portion provided on the downstream side of the inner wall of the member can be contacted from the upstream side (claim 1).

The downstream end of the stop valve projects outside the inner periphery of the small diameter portion of the joint member in a plan view, and is located inside the inner periphery of the upstream end of the joint member. The stop valve may be protruded downstream from the downstream end of the joint body (claim 2), and the stop valve may be substantially L-shaped in a side view (claim 3). ).

With the above structure, it is possible to provide a faucet coupling which is versatile and can be easily mounted and maintained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view schematically showing a configuration of a faucet joint D according to a first embodiment of the present invention. FIG. 2 is a perspective view of the faucet joint D with a joint member 18 connected thereto. It is a longitudinal cross-sectional view schematically showing a configuration. FIG.
FIG. 2 is an exploded perspective view schematically showing a configuration of the faucet joint D. The faucet joint D is a stop having a valve seat member 2 and a valve body portion 3 at the center, which can be abutted against the valve seat member 2 from the upstream side in the substantially cylindrical joint body 1 in order from the downstream side. A valve 4 and an elastic member 5 for urging the stop valve 4 downstream.
Is provided.

The joint body 1 has a step 6 at an upstream portion of the inner wall.
Are formed, and a lock groove portion 7 is provided on the outer peripheral surface. Further, a flow path having a diameter smaller than the inner diameter of the joint main body 1 is communicated with the upstream side of the joint main body 1 through the step 6, and a female screw portion is provided at a downstream portion of the inner wall of the joint main body 1. 8 are provided.

The valve seat member 2 is a substantially cylindrical member. A male screw portion 9 which can be screwed to the female screw portion 8 is provided on an outer peripheral surface, and a valve seat portion 10 is provided on an inner wall upstream portion.
Is provided.

The stop valve 4 includes a valve body 3 that can contact the valve seat member 2 from an upstream side, a protruding portion 11 provided continuously downstream of the valve body 3, 3 and a tubular portion 12 provided continuously on the upstream side of the cylinder 3.

The valve body 3 has a substantially cylindrical shape, and a seal member 13 such as an O-ring can be mounted on the outer periphery.

The projecting portion 11 is substantially L-shaped when viewed from the side, and the distal end of the downstream end portion 14 of the projecting portion 11 is oriented at an angle substantially perpendicular to the longitudinal direction of the joint body 1. Is provided.

The cylindrical portion 12 is slidable along the inner wall of the joint body 1, and four slits 15 are formed on the side surface. In addition, a step 16 provided in the upstream portion of the cylindrical portion 12 is provided.
The portion on the upstream side is a thin wall portion 17 having an increased inner diameter.
It has become.

The elastic member 5 is, for example, a coil spring. The upstream end of the elastic member 5 is in contact with the step 6 of the joint body 1 and the downstream end is in contact with the step 16 of the stop valve 4, and the stop valve 4 is constantly urged downstream. are doing.

Next, a method of assembling the faucet joint D having the above configuration will be described. In order to assemble the faucet joint D, the seal member 13 is mounted on the valve body 3 of the stop valve 4 in advance, and the elastic member 5 and the seal member 13 are inserted into the joint body 1 from the downstream side. Then, after the stop valve 4 equipped with the valve member is inserted in this order, the male screw portion 9 of the valve seat member 2 only needs to be screwed into the female screw portion 8 of the joint body 1.

As described above, the faucet joint D having the above-described structure is easy to assemble because the required number of parts is small, and the fitting of the parts such as the stop valve 4 into the joint body 1 is also possible. Can be performed not from the upstream side of the faucet fitting D but from the downstream side, so that the assembly is further simplified, and the replacement of the faucet fitting D can be easily performed. It has excellent properties.

In the faucet joint D, a joint member 18 provided at an upstream end of a secondary hose (not shown) is detachable. Hereinafter, the configuration of the joint member 18 will be described.

The joint member 18 is a substantially cylindrical member, and has, on its inner wall, a locking portion 19 for locking the lock groove 7 and an outer peripheral surface of the joint body 1 in order from the upstream side. And a small-diameter portion 21 having a smaller inner diameter. Reference numeral 22 denotes a substantially cylindrical sliding member, which extends along the outer wall of the joint member 18.
It is slidable in the axial direction of the joint member 18 and is constantly urged upstream by a spring 23.

The locking portion 19 has four through holes 24, 2
, And four lock balls 25, 25,... Held by the respective through holes 24.

The sliding member 22 has a protruding portion 26 formed on the inner peripheral surface thereof toward the inside. Further, on the upstream side of the protruding portion 26, the inner peripheral surface of the protruding portion 26 is formed. A recess 27 is provided so as to be outside the inner peripheral surface. A spring 2 that constantly urges the sliding member 22 to the upstream side is provided on the downstream side surface of the protrusion 26.
3 is configured such that the upstream end thereof abuts.

Also, on the outer peripheral surface of the distal end portion of the joint member 18,
A ring-shaped retaining member 28 is provided, and this retaining member 28 is for preventing the sliding member 22 from coming off the joint member 18 to the upstream side.

Next, the operation of connecting the joint member 18 having the above structure to the faucet joint D will be described. In a state where the joint member 18 is not connected to the faucet joint D, the stop valve 4 is always urged to the downstream side by the elastic member 5 in the faucet main body 1. The sealing member 13 of the part 3 is
, And water cannot flow through the valve seat 10.

On the other hand, when the joint member 18 is in the initial state, the sliding member 22 is located at the most upstream position of the slidable range.
It is located just outside the locking portion 19. In this state,
The protrusion 26 urges the lock ball 25 to the inside of the joint member 18, and the lock ball 2 urged in this manner
5 protrudes inside the inner wall of the joint member 18. The lock ball 25 protruding inside the inner wall of the joint member 18 prevents the joint body 1 from entering the inside of the joint member 18.

The joint member 18 in the initial state as described above
When the sliding member 22 is slid to the downstream side, the joint member 18 can be attached to the joint body 1. That is, when the sliding member 22 is slid to the downstream side, the protruding portion 26 located just outside the locking portion 19 moves downstream from this position, and the recessed portion 27 It will be located just outside. In this state, the lock ball 25 can be retracted from the inner wall of the joint member 18 to the concave portion 27, and the joint body 1 is connected to the joint member 1.
8 can be entered (hereinafter referred to as “enterable state”).

The joint member 18 in the above-mentioned state where it can enter is
When the stop valve 4 is externally fitted to the joint main body 1, the downstream end 14 of the stop valve 4 first comes into contact with the small-diameter portion 21 provided on the inner wall downstream of the joint member 18 from the upstream side. And
When the joint member 18 is further inserted deeper into the joint main body 1, the small-diameter portion 21 urges the downstream end portion 14 toward the upstream side, and this urging is larger than the urging toward the downstream side by the elastic member 5. Then, the stop valve 4 slides upstream. In the state where the stop valve 4 slides to the upstream side in this way, the seal member 13 of the valve body 3 which has been in contact with the valve seat 10 is separated from the valve seat 10, and the valve seat 10 The water can be distributed. The distance from the upstream surface of the downstream end portion 14 to the downstream end of the joint body 1 is determined by the valve body 3
The valve seat 10 is set so that it can be sufficiently opened.

On the other hand, when the joint member 18 is inserted into the joint body 1 as much as possible, the locking portion 19 is located just outside the lock groove 7. Then, when the sliding member 22 that has been slid to the downstream side is subjected to the bias of the spring 23, the sliding member 22 returns to the initial position, and the lock ball 25 is again moved by the projecting portion 26 to the joint member 1.
8. The lock ball 25 thus urged comes into contact with the lock groove 7 of the joint body 1, whereby the joint member 18 is locked so as not to come off from the faucet joint D.

As described above, the fitting member 18 is attached to the faucet joint D.
Is connected, water can be sent from the upstream side of the faucet joint D to the secondary side hose having the joint member 18.

To remove the joint member 18 from the joint body 1,
It is necessary to release the lock by the lock ball 25 and the lock groove 7, and the lock can be released by sliding the sliding member 22 to the downstream side. That is, when the sliding member 22 is slid downstream,
The lock ball 25 can be retracted into the recess 27 of the sliding member 22, and the lock groove 7 is formed by the lock ball 25.
Is released, and the lock is released. The above unlocking operation can be performed with one hand.

The water faucet joint D having the above-described construction cannot pass water through the valve seat 10 when the joint member 18 is not connected, and the valve seat 1 only when the joint member 18 is connected.
0 allows water to flow. Therefore, when the faucet (not shown) on the upstream side of the faucet joint D is open,
Even if the joint member 18 is accidentally detached from the faucet joint D due to mischief of a child or the like, water is not discharged from the faucet joint D, and a water leak accident or the like can be prevented.

The faucet joint D having the above-described structure is effective when used for a faucet which is often used with a valve such as a faucet to which a hose for a washing machine is connected open. However, the present invention is not limited to such a use, and can be used for all faucets that make a so-called socket connection.

[0034]

As described above, according to the present invention, it is possible to provide a faucet coupling which is versatile and can be easily mounted and maintained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a configuration of a faucet joint according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view schematically showing a configuration of the faucet joint in a state where a joint member is connected.

FIG. 3 is an exploded perspective view schematically showing the configuration of the embodiment.

FIG. 4 is a longitudinal sectional view schematically showing a configuration of a faucet joint according to a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Joint main body, 2 ... Valve seat member, 3 ... Valve body part, 4 ... Stop valve, 5 ... Elastic member, 6 ... Step, 14 ... Downstream end part, 18
... Joint member, 21 ... Small diameter part, D: Joint for faucet.

Continued on the front page F term (reference) 3J106 AB01 BA02 BB01 BC04 BC12 CA03 EA03 EB07 EC02 EC07 ED32 EE13 GA01 GA04 GA14 GA23 GB02

Claims (3)

[Claims] A valve seat member and a valve seat are provided in order from a downstream side in a joint body in which a joint member provided at an upstream end of a secondary hose is detachable and has a step at an upstream portion of an inner wall. A stop valve having a valve body in the center capable of contacting the member from the upstream side, and an elastic member that abuts the step at one end and the stop valve at the other end, and biases the stop valve downstream. In the process in which the joint member is connected to the joint body, the downstream end of the stop valve can be brought into contact with the small-diameter portion provided on the downstream portion of the inner wall of the joint member from the upstream side. A fitting for a faucet, characterized in that: 2. A plan view in which the downstream end of the stop valve projects outside the inner periphery of the small diameter portion of the joint member and is located inside the inner periphery of the upstream end of the joint member. 2. The faucet coupling according to claim 1, wherein the coupling is protruded downstream from a downstream end of the coupling main body. 3. The faucet coupling according to claim 1, wherein a side view of the stop valve is substantially L-shaped.