JP5887296B2 - Faucet - Google Patents

Description

  The present invention relates to a water discharge device that discharges water supplied from a water supply facility, and more particularly to a water discharge device having a water stop valve that switches between water discharge and water stop by operation of an operation button.

  A water discharge device such as a watering nozzle for home gardening or a shower head for a bathroom forms a flow passage through which water passes, and forms a water spout for discharging water at the tip of the flow passage, and also via a hose or the like. It is a device that is connected to a water supply facility and sprays water to any location.

Patent Document 1 discloses a water discharge device that has a valve shaft housing portion that penetrates the body while being orthogonal to the flow channel, and that accommodates a valve shaft that has a valve shaft internal flow path parallel to the flow channel in the valve shaft housing portion. Have been described.
In this water discharge device, the valve shaft slides in the valve shaft housing portion, and the water flow is discharged from the water spout by matching the flow path in the valve shaft with the flow path of the body, and the body of the flow path in the valve shaft is made different from the flow path. As a result, the water spout from the water spout could be stopped.

In order to operate the valve shaft and prevent it from coming off, a water stop button or a water discharge button was attached to both ends of the valve shaft protruding from the body by screw connection.
However, since the valve shaft and the water stop button or the water discharge button are attached by screw connection, there is a possibility that the water stop button and the water discharge button may come off due to loosening during use.
In order to prevent this, if the adhesive between the valve stem and the water stop button or the water discharge button is glued, it takes time to assemble and there is a risk that the appearance and function may be impaired due to the sticking out of the adhesive and the occurrence of debris. It was.

Japanese Patent No. 3806299

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a water discharge device having a water stop valve that is easy to assemble operation buttons, has high fixing strength, and has a good appearance.

In the present invention, means for solving the above problems are as follows.
1st invention forms the flow path through which water passes inside, and the water discharging apparatus which has the body which formed the discharge outlet which discharges water at the front-end | tip of this flow path WHEREIN: The provided valve shaft is operably disposed in the flow path of the body, and the valve shaft is interlocked with the operation button, and the flow path in the valve shaft is matched with the flow path to discharge water from the water spout. Providing a water stop valve for stopping water discharge from the water spout by making the flow path in the valve shaft different from the flow path, and the operation button with respect to the connecting portion attached to the valve shaft and the body It is characterized by comprising a button body having an outer cylinder portion attached so as to be movable within a predetermined range, and a button cover covering the outer surface in the axial direction of the button body.

According to a second aspect of the present invention, the connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off, and the claw portion is released by being elastically deformed. And the button cover prevents elastic deformation of the claw portion in a state where the button cover is attached to the button body.
The term “prevention” as used herein means preventing elastic deformation such that the engagement between the claw portion and the valve shaft is released, and preventing even slight elastic deformation that does not lead to release of the engagement. Is not required.

  According to a third aspect of the present invention, the connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off, and the claw portion is elastically deformed to release the locking. And the button cover is attached to the button body, and the claw portion is pressed in the opposite direction to the release to be locked to the valve shaft.

  4th invention forms the flow path through which water passes inside, operation of the water stop valve which opens and closes the said flow path of the water discharging apparatus which has the body which formed the discharge outlet which discharges water at the front-end | tip of this flow path In the button, a button main body having a connecting portion attached to a valve shaft of a water stop valve operably disposed in the flow path, and an outer cylinder portion attached to be movable within a predetermined range with respect to the body, and the button main body And a button cover covering the outer surface in the axial direction.

  According to the first aspect of the present invention, the valve shaft having a flow passage in the valve shaft penetrating the inside is operably disposed in the flow passage of the body, and the valve shaft is interlocked with the operation button so that the valve shaft A water stop valve is provided to discharge water from the water spout by matching the inner flow path with the flow path, and to stop water discharge from the water spout by making the flow path in the valve shaft different from the flow path. The operation button includes a button body having a connecting portion attached to the valve shaft and an outer cylinder portion attached to the body so as to be movable within a predetermined range, and a button cover covering the outer surface in the axial direction of the button body. Therefore, even if holes, steps, dents, etc. are provided on the outer surface in the axial direction of the button body in order to form the connecting part, the design property of the operation button can be improved by covering it with the button cover. it can.

According to the second aspect of the present invention, the connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off, and the claw portion is elastically deformed to release the locking. As a result, the operation button can be firmly attached to the valve shaft, and can be arbitrarily removed by the user, so that cleaning and replacement of parts can be easily performed.
In addition, when the button cover is attached to the button body, the claw portion is prevented from being elastically deformed, so that the locking is not released due to an impact such as dropping, and the water stop button and water discharge The button can be firmly attached to the valve stem.

According to the third aspect of the present invention, the connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off, and the claw portion is elastically deformed to release the locking. As a result, the operation button can be firmly attached to the valve shaft, and can be arbitrarily removed by the user, so that cleaning and replacement of parts can be easily performed.
In addition, when the button cover is attached to the button body, the claw portion is pressed in the opposite direction to the release to be locked to the valve shaft, so that the engagement between the claw portion and the valve shaft is natural. Even when the stop is insufficient, the button cover can firmly attach the claw portion to the valve stem.

  According to the fourth invention, the operation button is connected to the valve shaft of the water stop valve that is operably disposed in the flow path, and the outer cylinder is attached to the body so as to be movable within a predetermined range. And a button cover that covers the outer surface in the axial direction of the button body, thereby providing a hole, a step, a dent, etc. on the outer surface in the axial direction of the button body to form a connecting portion, thereby reducing design. Even so, it can be covered with the button cover to improve the design of the operation buttons.

It is a figure which shows the watering nozzle which concerns on 1st embodiment of this invention, (a) is a top view, (b) is AA sectional view taken on the line of a water discharge state, (c) is the AA line of a water stop state It is sectional drawing. (A) is the BB line expanded sectional view in FIG.1 (b), (b) is the partial expanded sectional explanatory drawing of a button main body. It is a disassembled perspective view of the water stop valve of the watering nozzle. It is an expanded sectional view which shows the water stop valve of the watering nozzle which concerns on 1st embodiment of this invention. It is a figure which shows the watering nozzle which concerns on 3rd embodiment of this invention, (a) is a downward perspective view, (b) is an upper perspective view. It is a perspective view which shows the shower head which concerns on 4th embodiment of this invention.

Hereinafter, a water discharge device according to an embodiment of the present invention will be described.
The water discharge device forms a flow passage through which water passes inside, such as a watering nozzle for home gardening or a shower head for bathrooms, and forms a water spout for discharging water at the tip of this flow passage. It is a device that can spray water to the place.

As an example of the water discharge device, the watering nozzle 1 according to the first embodiment will be described.
As shown in FIG. 1, the watering nozzle 1 includes a water stop valve in a body 4 in which a water flow path 2 is formed and a water spout 3 is formed at the tip of the flow path 2.
The body 4 includes a grip portion 5, a head portion 6, and a water spray plate 7.
As shown in FIGS. 2 and 3, the water stop valve is formed by assembling a valve shaft 8, a water stop button 9, a water discharge button 10, and two O-rings 11 and 11. 2 is operably disposed.

As shown in FIGS. 1B and 1C, a cylindrical seal member 12 for preventing water leakage is disposed between the grip portion 5 and the water stop valve, and between the grip portion 5 and the head 6. Also, an O-ring 13 for preventing water leakage is arranged.
As the material of the sealing member 12, various resins and rubbers can be used, and EPDM (ethylene-propylene rubber) excellent in chlorine resistance is preferable.

The grip part 5 is a cylindrical member, and forms a connection part connected to a hose or the like at the upstream end, and forms a connection cylinder part 14 connected to the head 6 at the downstream end.
A valve housing cylinder 15 that intersects the flow path 2 is formed in the vicinity of the downstream end of the grip portion 5. The valve storage cylinder 15 penetrates the grip part 5 vertically from the abdomen to the back.

The head 6 is a member having a dome-shaped dome portion 16 on the downstream side and fitted on the connecting tube portion 14 of the grip portion 5, and the tip of the dome portion 16 is opened and the water spray plate 7 is attached. Can be done.
The water spray plate 7 is formed in a cylindrical shape having a disk-shaped bottom surface covering the lower portion of the head 6 and is attached to the outer periphery of the head by screw connection.

The water spray nozzle 1 is provided with a water stop valve capable of switching between a water discharge state and a water stop state.
As shown in FIG. 3, the valve shaft 8 of the water stop valve is a member formed in a cylindrical shape, and has a flow channel 17 in the valve shaft that penetrates the inside in the radial direction. When the valve shaft 8 is slidably accommodated in the valve storage cylinder 15, the valve shaft flow path 17 is directed substantially parallel to the flow path 2 of the body 4.
On the outer peripheral surface of the valve shaft 8, grooves for attaching O-rings 11 and 11 for preventing water leakage are formed above and below the flow path 17 in the valve shaft.

Above the mounting position of the upper O-rings 11, 11, button hook holes 18, 18 are opened at two places on the circumferential surface of the valve shaft 8.
In addition, button hooking holes 18 and 18 are opened at two positions on the peripheral surface of the valve shaft 8 below the mounting position of the lower O-rings 11 and 11.
The button hooking hole 18 is formed so as to penetrate the peripheral surface, but may be formed as a groove or a recess provided on the inner peripheral surface.

As the material of the valve shaft 8, an elastic body such as plastic, metal, rubber, or elastomer can be used.
Among these, it is preferable to use a plastic or an elastic body because it is light and easy to handle, is not easily rusted, is not easily broken, and is easy to mold and process.
Among these, it is particularly preferable to use a plastic whose raw material and production cost are inexpensive.
Among the plastics, a thermoplastic resin having high versatility is preferable, and an ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin) capable of improving the surface finish and improving the sealing property is particularly preferable.
An ABS resin was used for the valve shaft 8 of the first embodiment.

The water stop button 9 includes a button body 19 and a button cover 27 and is attached to the lower end portion of the valve shaft 8.
As shown in FIGS. 2 and 3, the button main body 19 includes an outer cylinder portion 20 having an inner diameter that can circumscribe the valve housing cylinder 15, and four pieces that can be inscribed in the valve shaft 8 disposed in the outer cylinder portion 20. The outer cylinder part 20 and the connection part 21 are integrally connected by the bottom plate part 22.

A first claw portion 23 is formed at the distal end of each connecting portion 21 so as to be hooked on the button hooking hole 18 of the valve shaft 8. The side surface on the distal end side of the first claw portion 23 is formed on an inclined surface so as to come into contact with the inner surface of the valve shaft 8 while being elastically deformed. The side surface on the base side of the first claw portion 23 is formed as a surface perpendicular to the pulling direction, and is locked to the edge of the button hook hole 18 so as to be prevented from coming off.
When the first claw portion 23 is locked in the button hooking hole 18, the valve shaft 8 and the button main body 19 are fixed so as not to rotate with respect to each other.

  A second claw portion 24 that works as a return when the button cover 27 is attached is formed on the inner side in the radial direction of the base (bottom plate side) of each connecting portion 21. A side surface on the base side of the second claw portion 24 is formed on an inclined surface so as to receive the button cover while being elastically deformed. The side surface on the distal end side of the second claw portion 24 is formed perpendicular to the pulling direction, and is locked to the button cover 27 to be prevented from coming off.

The button body 19 and the button cover 27 are formed by pouring material into a mold.
In order to form the first claw portion 23 having a complicated shape, the bottom plate portion 22 is formed with a mold hole 25 for pulling out the mold at the base position of each connecting portion 21.
Further, in order to mold the second claw portion 24 having a complicated shape, a center hole 26 for extracting the mold is also formed at the center of the bottom plate portion 22. The center hole 26 is also used when the button cover 27 is attached.

As shown in FIGS. 2 and 3, the button cover 27 is formed on a disk-shaped plate material that covers the bottom plate portion 22 of the button body 19, and an attachment column 28 is erected from the center.
The mounting column 28 is formed to have a diameter arranged between the two connecting portions 21 and 21 of the button body 19 and enters the button body 19 from the center hole 26. The mounting column 28 is also formed with a barb 29 made up of a slope on the distal end side and a vertical surface on the proximal end side, and is locked with the second claw portion 24 of the button body 19 to prevent it from coming off. .
A recess 32 is formed on the upper surface of the button cover 27. When the button cover 27 is molded, the material is poured from the gate at the position of the mold recess 32. Even if a gate residue (a convex shape remaining on the button cover 27) is generated at the time of demolding, the gate residue does not protrude from the upper surface of the button cover 27 due to the depression 32.

The water discharge button 10 includes a button body 19 and a button cover 27 and is attached to the upper end of the valve shaft 8.
The button body 19 of the water discharge button 10 is the same as the button body 19 of the water stop button 9, and the button cover 27 of the water discharge button 10 is the same as the button cover 27 of the water stop button 9.

As the material of the button body 19 and the button cover 27, an elastic body such as plastic, metal, rubber, or elastomer can be used.
Among these, it is preferable to use a plastic or an elastic body because it is light and easy to handle, is not easily rusted, is not easily broken, and is easy to mold and process.
Among these, it is particularly preferable to use a plastic whose raw material and production cost are inexpensive.
Of the plastics, thermoplastics having high versatility are preferable. Among them, ABS resin has a good appearance, and PP (polypropylene) has high chemical resistance to detergents. POM (polyacetal) has high strength.
PP was used for the button body 19 and the button cover 27 of the first embodiment.

The diameters of the water stop button 9 and the water discharge button 10 are preferably 8 to 40 mm.
If the diameter is less than 8 mm, the button main body 19 and the button cover 27 become thin and the strength is insufficient. The diameter is more preferably 10 mm or more, and particularly preferably 12 mm or more.
If the diameter is larger than 40 mm, the water stop valve becomes large and difficult to handle, and the material cost increases unnecessarily. The diameter is more preferably 35 mm or less, and particularly preferably 25 mm or less.
In the first embodiment, since plastic is used as the material, the minimum thickness is 20 mm while ensuring strength.

The vertical length of the water stop valve, that is, the length from the lower end of the button cover 27 of the water stop button 9 to the upper end of the button cover 27 of the water discharge button 10 is preferably 30 to 70 mm.
If the length is less than 30 mm, the sliding amount of the valve shaft 8 for opening and closing the flow path 2 becomes too small, and the flow path 2 cannot be reliably opened or closed, or the flow path 17 in the valve shaft is made small. Inevitably, the flow rate will drop. The length is more preferably 35 mm or more, and particularly preferably 45 mm or more.
If the length is larger than 70 mm, it is too long and it is difficult to put a finger on the water stop button 9 or the water discharge button 10. The length is more preferably 65 mm or less, and particularly preferably 60 mm or less.
In the first embodiment, the length is set to 52 mm in consideration of the slide amount of the valve shaft 8 necessary for opening and closing the flow path 2.

The protrusion amount B (see FIG. 2B) by which the first claw portion 23 protrudes in the radial direction from the connecting portion 21 is preferably 0.5 to 2.0 mm.
If the protruding amount B is less than 0.5 mm, it is likely to come off from the button hole 18 against the user's intention due to external factors such as deformation due to impact or temperature change, gap between the set dimension of the part and the actual size. . The protrusion amount B is more preferably 0.6 mm or more, and particularly preferably 0.7 mm or more.
If the protruding amount B is larger than 2.0 mm, the amount of elastic deformation required at the time of attachment to or removal from the valve shaft 8 increases, and depending on the material, there is a risk of damage. The protrusion amount B is more preferably 1.5 mm or less, and particularly preferably 1.2 mm or less.
In the first embodiment, the protrusion amount B is 0.8 mm.

As shown in FIG. 2B, the ratio between the protrusion amount B of the first claw portion 23 and the distance A from the portion other than the first claw portion 23 of the connecting portion 21 to the outer cylinder portion 20 is A > B is required. Further, when molding the first claw portion 23, the mating surface is tapered so that no burrs are generated on the mating surface between the mold that is pulled out from the mold hole 25 and the mold that is pulled out under the button body 19. In order to ensure the thickness (strength) in the radial direction of each mold, it is preferable that A> B × 1.5. Furthermore, it is more preferable that A> B × 4.65 because a space for sandwiching the valve storage cylinder 15 and the valve shaft 8 is secured between the outer cylinder part 20 and the connecting part 21.
In the first embodiment, A> B × 4.65 is set.

It is preferable to provide the 1st nail | claw part 23 in multiple places of 1 place or more on a circumference, and it is preferable to provide in 2 places or more especially at equal intervals and equiangular arrangement | positioning. Further, if the first claw portions 23 are provided in more than nine places, the shape becomes complicated and it becomes difficult to perform mold processing. Therefore, the number is preferably 8 places or less, and particularly preferably 6 places or less. In 1st embodiment, the 1st nail | claw part 23 was provided in two places by equal intervals and equiangular arrangement | positioning among the four connection parts 21. FIG.
It is preferable to provide the 2nd nail | claw part 24 in multiple places of 1 place or more on a periphery, and it is preferable to provide in 2 places or more especially by providing over a perimeter or equidistant arrangement. Further, if the number of the second claw portions 24 is more than nine, the shape is complicated and it becomes difficult to perform the mold processing. Therefore, the number is preferably 8 or less, and particularly preferably 6 or less. In 1st embodiment, the 2nd nail | claw part 24 was provided over the perimeter of the inner surface of the connection part 21. As shown in FIG.

In order to assemble the watering nozzle 1, first, the sealing member 12 is inserted from the connecting tube portion 14 of the grip portion 5 to the upstream side of the valve housing tube 15, and then the valve shaft 8 to which the O-rings 11 and 11 are attached is inserted into the valve housing tube. The water stop button 9 and the water discharge button 10 are attached from above and below to form a water stop valve.
In order to attach the water stop button 9 and the water discharge button 10 to the valve shaft 8, first, the first claw portion 23 of the button body 19 is locked to the button hooking hole 18 of the valve shaft 8, and the button body 19 is attached to the valve shaft 8. Install. Next, the mounting column 28 of the button cover 27 is inserted into the center hole 26 of the button body 19, the second claw portion 24 and the barb 29 are locked, and the button cover 27 is attached to the button body 19.
Next, the O-ring 13 is attached to the connecting tube portion 14 of the grip portion 5 and connected to the head 6.
Finally, the watering plate 7 is attached to the head 6.

In this shower apparatus, as shown in FIG. 1 (b), when the water discharge button 10 on the back is pushed, the flow path 17 in the valve shaft matches the flow path 2 of the gripping part 5, and water is discharged from the water spout 3. Can do.
Moreover, as shown in FIG.1 (c), if the water stop button 9 of the lower side is pushed in, the flow path 17 in a valve shaft will differ from the flow path 2, and the water discharge from the water spout 3 can be stopped.
The movable range of the water stop valve is limited by the bottom plate portion 22 of the button body 19 of the water stop button 9 and the water discharge button 10 coming into contact with the valve housing cylinder 15, and the water stop valve does not come off the body 4.

In the watering nozzle 1 of the first embodiment, the valve shaft 8 and the button body 19 are firmly attached by locking the first claw portion 23 and the button hooking hole 18, and the second claw portion 24 and the return 29 of the attachment column 28 are returned. The button main body 19 and the button cover 27 can be firmly attached by the locking.
In order to achieve such a retaining, it is necessary to set the radial protrusion amount B (FIG. 2 (b)) of the first claw portion 23 to a predetermined value or more. Since the hole 25 is provided to improve the degree of freedom of the shape of the mold or the first claw portion 23 and the mold hole 25 and the center hole 26 of the button body 19 can be covered by the button cover 27, the water stop valve The design property of can be improved.

Further, the first claw portion 23 and the button hooking hole 18 are prevented from coming off when the first claw portion 23 is elastically deformed in the radial direction, and the button body 19 can be removed from the valve shaft 8 with a snap fit. It has become.
The retaining of the attachment column 28 and the second claw portion 24 is also a snap fit that can be released by elastic deformation of the second claw portion 24 in the radial direction.
Accordingly, the water stop button 9 and the water discharge button 10 can be firmly attached to the valve shaft 8, and can be detached from the button body 19 when the button cover 27 is pulled strongly, and then the valve shaft 19 when the button body 19 is pulled strongly. 8 can be removed.
Since the water stop valve can be disassembled in this way, the inside of the water stop valve such as the valve shaft flow path 17 can be cleaned. Moreover, when each part of a water stop valve breaks, it can replace | exchange easily.

The fixing means for the button body 19 and the button cover 27 includes, in addition to snap fit, bonding, press-fitting, press-fitting using an auxiliary member (resin or elastic body), fitting with L-shaped grooves and protrusions, screw connection, etc. May be adopted.
In this case, when a detachable fixing means such as snap fit, fitting with an L-shaped groove and protrusion, or screw connection is adopted, the inside of the water stop valve such as the valve shaft passage 17 can be cleaned. it can.
In addition, when snap fitting or press fitting is adopted, the number of parts is small and an inexpensive material can be used, so that cost can be reduced and assembly is facilitated. In particular, the snap fit has excellent fixing strength.

In the first embodiment, the water stop button 9 and the water discharge button 10 are formed in a circular shape in plan view.
The shape of the water stop button 9 and the water discharge button 10 in a plan view is any plane such as a circle, a polygon, a trapezoid, a shape combining a plurality of straight lines, a shape combining a plurality of curves, and a shape combining a straight line and a curve. It can be made into a shape, and may be determined depending on the ease of manufacture using a mold and the design.
In the case of a polygonal shape or the like, the button body 19 and the valve shaft 8 cannot rotate with respect to the body 4, so that the valve shaft flow path 17 can be prevented from rotating, and the correct angle at the time of assembly Can be easily confirmed visually.
In addition, even if the valve shaft 8 is rotated 180 degrees in the circumferential direction from the correct assembly direction, the valve shaft 8 can be mounted without any problem. Therefore, when the water stop button 9 and the water discharge button 10 are rotated 180 degrees to form a symmetric regular polygon. The water stop valve can be attached even if it is rotated 180 degrees with respect to the body 4, and the restriction on the assembly direction is eased.
Moreover, when making it circular like 1st embodiment, the attachment space of the water stop button 9 and the water discharge button 10 in the body 4 can be minimized.

  The button body 19 and the button cover 27 of the first embodiment close the lower end of the valve storage cylinder 15, attach only the water discharge button 10 (operation button) to the valve shaft 8, and push and pull the water discharge button 10 to flow the flow path. Even if it adopts in the modification which opens and closes channel 2, and the modification which opens and closes channel 2 by valve shaft 8 rotating in the peripheral direction in conjunction with operation of water discharge button 10 (operation button), the above-mentioned effect is obtained. Can play.

<Second embodiment>
As shown in FIG. 4, the watering nozzle 1 of the second embodiment forms the mounting column 28 of the button cover 27 longer than the first embodiment, and the second claw portion 24 is the first claw portion 23. It is characterized by being formed nearby.
For this reason, when the button cover 27 is attached to the button body 19, the barb 29 is arranged between the two first claw portions 23.
Other configurations are the same as those in the first embodiment.

Also in the second embodiment, the first claw portion 23 is elastically deformed in the radial direction, so that the first claw portion 23 and the button hooking hole 18 are prevented from coming off, and the button body 19 can be removed from the valve shaft 8. Snap fit is possible.
However, the return 29 of the button cover 27 engages with the second claw portion 24 between the two first claw portions 23, thereby preventing the elastic deformation of the first claw portion 23 in the radial direction. For this reason, the water stop button 9 and the water discharge button 10 can be firmly attached to the valve shaft 8 without the engagement between the first claw portion 23 and the button hooking hole 18 being released due to an impact such as dropping. .

In the second embodiment, when the protruding amount B in the radial direction of the first claw portion 23 is small or the connecting portion 21 is inclined inward, the locking between the first claw portion 23 and the button hooking hole 18 is weak. In addition, if the button cover 27 is attached, the attachment post 28 (return 29) pushes and supports the connecting portion 21 in the radial direction, whereby the first claw portion 23 can be firmly locked to the button hooking hole 18. .
Therefore, in the second embodiment, even if the projection amount B (see FIG. 2B) that the first claw portion 23 projects from the coupling portion 21 in the radial direction is about 0.1 mm, the button hook hole 18 is firmly attached. It can be locked.

In 2nd embodiment, it is preferable that protrusion amount B shall be 0.1-2.0 mm.
If the protruding amount B is less than 0.1 mm, the locking becomes too weak, and it is easy to come off due to external factors. The protrusion amount B is more preferably 0.2 mm or more, and particularly preferably 0.3 mm or more.
If the protrusion amount B is larger than 2.0 mm, the required amount of elastic deformation becomes large when being attached to or removed from the valve shaft, and there is a risk of damage depending on the material. The protrusion amount B is more preferably 1.5 mm or less, and particularly preferably 1.2 mm or less.
In 2nd embodiment, it was set to 0.8 mm same as 1st embodiment.

  Since the upper portion of the connecting portion 21 is formed thin, the second claw portion 24 can be elastically deformed in the radial direction. Therefore, even in the second embodiment, when the button cover 27 is pulled strongly, it is detached from the button body 19. The button body 19 can then be removed from the valve stem 8 by pulling it strongly.

<Third embodiment>
In the water spray nozzle 1 of the first embodiment or the second embodiment, the third embodiment is provided with a display 30 on at least one of the water stop button 9 and the water discharge button 10 as shown in FIG. And the water discharge button can be visually distinguished.
As shown in FIG. 5A, a display 30 made of a double circular groove is engraved on the outer surface of the button cover 27 of the water stop button 9. As shown in FIG. 5B, the button cover 27 of the water discharge button 10 is formed flat.
The display 30 may employ any display 30 such as a protrusion, engraving, printing, or the like.
Moreover, you may make it distinguishable by providing a different display in both the water stop button 9 and the water discharge button 10, respectively.

  In the third embodiment, by providing a display on at least one of the water stop button 9 and the water discharge button 10 so that the head 6 can be visually distinguished, the head 6 has no inclination as shown in FIG. The user can distinguish the water stop button 9 and the water discharge button 10 even if the water spray nozzle 1 has a symmetrical shape.

<Fourth embodiment>
As shown in FIG. 6, a bathroom shower head 31 according to the fourth embodiment has a body 4 in which a water flow path 2 is formed inside and a water spout 3 is formed at the tip of the flow path 2. The body 4 is provided with the water stop valve of the first embodiment or the second embodiment.
The body 4 is formed by connecting a gripping part 5 and a head 6 and attaching a watering plate 7 having a watering port 3 to the head.
A valve housing cylinder 15 that intersects the flow path 2 is formed in the grip portion 5, and the valve shaft 8 of the water stop valve is slidably accommodated in the valve housing cylinder 15.

The water stop valve of the fourth embodiment is the same as the water stop valve of the first embodiment or the second embodiment.
Therefore, the water stop button 9 and the water discharge button 10 are formed by assembling the button body 19 and the button cover 27.
Thus, the water stop valve of this invention can be widely employ | adopted as a watering nozzle, a shower head, and other water discharging apparatuses.

DESCRIPTION OF SYMBOLS 1 Sprinkling nozzle 2 Flow path 3 Sprinkling port 4 Body 5 Grasp part 6 Head 7 Sprinkling plate 8 Valve shaft 9 Water stop button 10 Water discharge button 11 O ring 12 Seal member 13 O ring 14 Connection cylinder part 15 Valve storage cylinder 16 Dome part 17 Flow path in valve shaft 18 Button hole 19 Button body 20 Outer cylinder part 21 Connection part 22 Bottom plate part 23 First claw part 24 Second claw part 25 Mold hole 26 Center hole 27 Button cover 28 Mounting column 29 Return 30 Display 31 Shower head 32 Dimple

Claims (4)

In the water discharge device having a body that forms a flow path through which water passes inside, and a discharge port that discharges water at the tip of the flow path,
A valve shaft provided with a flow passage in the valve shaft that penetrates the inside is operably disposed in the flow passage of the body, and the valve shaft is linked to the operation button so that the flow passage in the valve shaft becomes the flow passage. Providing a water stop valve that stops water discharge from the discharge port by discharging water from the discharge port by matching, and making the flow path in the valve shaft different from the flow path;
A button body having a connecting portion attached to the valve shaft and an outer cylinder portion attached to the body so as to be movable within a predetermined range;
It consists of a button cover that covers the axial outer surface of this button body, and
The button cover is formed of a slope and a vertical surface, and the button body has a barb protruding from the button body, and the button cover is formed of a slope and a vertical surface and protrudes from the button cover. With a return of
The button body and the button cover are attached by abutting and elastically deforming the return slope of the button body and the return slope of the button cover, and the return vertical surface of the button body and the button cover A water discharge device characterized in that it is prevented from coming off by engaging with the vertical surface of the barb. The connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off,
This claw part can be unlocked by elastic deformation,
2. The water discharge device according to claim 1, wherein the button cover prevents elastic deformation of the claw portion in a state where the button cover is attached to the button body. The connecting portion of the button body is provided with a claw portion that is locked to a part of the valve shaft and is prevented from coming off,
This claw part can be unlocked by elastic deformation,
2. The water discharge device according to claim 1, wherein the button cover is engaged with the valve shaft by pressing the claw portion in a direction opposite to the release direction in a state where the button cover is attached to the button body. In the operation button of the water stop valve that opens and closes the flow channel of the water discharge device having a body that forms a flow channel through which water passes inside and has a discharge port that discharges water at the tip of the flow channel,
A button body having a connecting portion attached to a valve shaft of a water stop valve operably disposed in the flow path and an outer cylinder portion attached to the body so as to be movable within a predetermined range;
It consists of a button cover that covers the axial outer surface of this button body, and
The button cover is formed of a slope and a vertical surface, and the button body has a barb protruding from the button body, and the button cover is formed of a slope and a vertical surface and protrudes from the button cover. With a return of
The button body and the button cover are attached by abutting and elastically deforming the return slope of the button body and the return slope of the button cover, and the return vertical surface of the button body and the button cover An operation button characterized in that it is prevented from coming off by being locked with the vertical surface of the return .

Images