JP5872498B2 - Shower equipment - Google Patents

Description

  The present invention relates to a shower apparatus, and more particularly to a shower apparatus that mixes air with hot water supplied from a hose or the like and sprinkles water.

  In the conventional shower apparatus, as in Patent Document 1, a flow passage through which hot water passes is formed, and a shower body having a water spout for discharging hot water is formed at the end of the flow passage. Some orifices with a narrowed inner diameter and an air mixing hole for mixing air into the hot water in the flow path are provided downstream of the orifice, so that water can be mixed with water and sprinkled. It was.

  In the shower device of Patent Document 1, a first air introduction hole for introducing air into the interior of the shower body is further provided, and the air taken into the shower body from the first introduction hole is introduced into the flow path from the air mixing hole. At the same time, by forming the cross-sectional area of the air mixing hole to be smaller than that of the first air introduction hole, it is possible to reduce the aerial sound generated with the introduction of air.

However, in the shower apparatus of patent document 1, it becomes a double structure of the outer member which provides a 1st air introduction hole, and the inner member which provides an air mixing hole, and while a shower apparatus will enlarge, a number of parts will be increased. Increasing material costs and processing costs.
In addition, since the first air introduction hole is exposed to the outside, the appearance is impaired, and the user may block the first air introduction hole by hand when using the shower device. Could not be mixed.

Patent Document 2 discloses an air mixing member provided with an orifice portion and an air mixing hole, a substantially hourglass-shaped taper member attached downstream of the air mixing member and provided with a reduced taper portion and an enlarged taper portion in order, and a taper. A shower device comprising a shower body attached downstream of the member is described.
In the shower apparatus of patent document 2, the backflow of the hot water to an air mixing member can be prevented by a taper member during watering.

However, since the aeration member and the taper member are detachably attached to the shower main body, when the water stop valve is closed when the shower main body is replaced with a shower main body having a temporary water stop valve, May pass through the taper member and flow backward to the air mixing member, and may leak from the air mixing hole.
In addition, the air introduction hole communicating with the air mixing hole is exposed to the outside, the appearance is impaired, and the user may block the first air introduction hole by hand when using the shower device. Stable air mixing could not be performed.

Further, Patent Document 3 discloses leakage of hot water between an air introduction hole that is exposed to the outside and introduces air and an air introduction hole that communicates with the air introduction hole and mixes air into the hot water of the flow path. There was one with a special check valve to prevent this.
However, this check valve is composed of a member that forms the valve seat, a valve body, and a biasing member that biases the valve body toward the valve seat, so that the shower device becomes larger and the number of parts increases. As a result, material costs and processing costs have increased.

Japanese Patent No. 4632106 Japanese Patent No. 4438209 JP 2002-96000 A

  The present invention has been made to solve the above-mentioned problems, and in a shower device that mixes air with hot water and sprinkles water, the air sound is reduced at low cost or leakage of hot water from an aeration hole is prevented. It is an object to provide a shower device and a flow path structure that can be used.

In the present invention, means for solving the above problems are as follows.
A first aspect of the present invention is a shower apparatus having a shower body in which a flow path through which hot water passes is formed and a water spout for discharging the hot water is formed at the tip of the flow path. A valve shaft that forms a channel is operably disposed in the flow path, and water is discharged from the water spout by matching the flow path in the valve shaft with the flow path, and the flow path in the valve shaft is A water stop valve is provided to stop water discharge from the water spout by making it different from the flow path, and an air mixing hole that communicates with the outside air and introduces air into the flow path is formed in the valve shaft. To do.

  According to a second aspect of the present invention, an operation button for manual operation is attached to the valve shaft, and the air mixing hole is shielded by the operation button and cannot be visually recognized from the outside.

  According to a third aspect of the present invention, the valve shaft has an orifice portion for speeding up the hot water in the valve shaft flow path upstream of the position where the air mixing hole is formed, and the valve shaft and the shower body A seal member for preventing water leakage between the two is disposed in the flow path of the shower main body upstream from the orifice portion.

  According to a fourth aspect of the present invention, when the flow path in the valve shaft is made different from the flow path and the discharge from the water spout is stopped, the air mixing hole is not in communication with the flow path of the shower body. It is characterized by that.

  The fifth invention is characterized in that the valve shaft is detachably attached to the shower body.

  In a sixth aspect of the present invention, in a posture in which a water retention chamber is provided in the flow path downstream from the air mixing hole and the shower body is attached to a predetermined shower hanger, hot water is accumulated in the water retention chamber, The aeration hole is submerged in the hot water.

  The seventh invention is characterized in that the air mixing hole communicates with a gap between the shower body and the operation button of the valve shaft, and outside air is taken in through the gap.

  According to an eighth aspect of the present invention, there is provided a flow path structure in which a flow path through which hot water passes is formed, a valve shaft formed with a flow path in a valve shaft penetrating the inside is operably disposed in the flow path, and the valve shaft A water stop valve is provided for allowing hot water to pass through by matching an inner flow path with the flow path, and for stopping water discharge from the water spout by making the flow path in the valve shaft different from the flow path. Is characterized in that an air mixing hole is formed which communicates with the outside air and introduces air into the flow path.

  According to the first aspect of the present invention, the valve shaft in which the valve shaft flow passage penetrating the inside is operably disposed in the flow passage, and the valve shaft flow passage is matched with the flow passage to A water stop valve for stopping water discharge from the water spout is provided by discharging water from the water spout and making the flow path in the valve shaft different from the flow path, and the valve shaft communicates with the outside air. By forming an aeration hole for introducing air into the road, it is possible to reduce the size of the shower device without increasing the number of parts by providing special parts for mixing hot air with hot water, and manufacturing costs. Can be reduced.

  According to the second aspect of the present invention, an operation button for manual operation is attached to the valve shaft, and the air mixing hole is shielded by the operation button, so that an air sound when air is mixed into hot water is generated. Leakage to the outside can be reduced. In addition, the appearance of the shower device is not impaired by the fact that the aeration holes cannot be visually recognized from the outside by the operation buttons.

  According to a third aspect of the invention, the valve shaft has an orifice portion for speeding up the hot water in the flow passage in the valve shaft upstream of the position where the air mixing hole is formed. A seal member for preventing water leakage between the shower body and the shower body is disposed in the flow path of the shower body upstream from the orifice portion, thereby making the flow path in the valve shaft different from the flow path. When water discharge from the water port is stopped, hot water supplied from the upstream flow path can be reliably prevented from flowing into the orifice portion or the downstream flow path.

  According to a fourth aspect of the present invention, when the flow path in the valve shaft is made different from the flow path and the discharge from the water spout is stopped, the aeration hole is not in communication with the flow path of the shower body. As a result, it is possible to prevent the hot and cold water in the upstream and downstream flow channels from leaking out from the air mixing hole. For this reason, it is not necessary to provide a special device for preventing leakage of hot water from the air mixing hole, and the shower device can be reduced in size and the manufacturing cost can be reduced.

  According to the fifth invention, the valve shaft is detachably attached to the shower body, so that the valve shaft can be detached from the shower body and maintenance can be easily performed.

  According to the sixth invention, in a posture in which a water retention chamber is provided in the flow path downstream from the air mixing hole and the shower body is attached to a predetermined shower hanger, hot water is supplied to the water retention chamber. It is possible to prevent clogging due to accumulation of impurities in the aeration hole due to accumulation of the aeration hole in the hot water.

  According to the seventh invention, the aeration hole communicates with a gap between the shower main body and the operation button of the valve shaft, and the outside air is taken in from the gap, thereby closing the gap for taking in air. Is prevented, and air can be mixed with hot water stably.

  According to the eighth aspect of the present invention, a valve shaft that forms a flow path through which hot water passes, and that forms a flow path in the valve shaft that penetrates the inside is operably disposed in the flow path, and the flow path in the valve shaft Is provided with a water stop valve that stops hot water from passing through the sprinkling port by allowing hot water to pass through by matching the flow path with the flow path and making the flow path in the valve shaft different from the flow path. By forming an air mixing hole that introduces air into the flow path in communication with the flow path, it is possible to simplify the flow path structure without providing special parts for mixing air with hot water and increasing the number of parts. And manufacturing cost can be reduced.

(A) is a front perspective view which shows the shower apparatus which concerns on 1st embodiment of this invention, (b) is the back perspective view. It is a disassembled perspective view of the shower apparatus. It is a longitudinal cross-sectional view of the shower apparatus. It is a figure which shows the valve shaft of the water stop valve of the shower apparatus, (a) is a front view, (b) is a side view, (c) is CC sectional view taken on the line in (b), (d) (A) is the sectional view on the AA line in (a), (e) is the sectional view on the BB line in (a). It is a figure which shows the valve shaft of the water stop valve, a water stop button, and a water discharge button, (a) is a lower perspective view, (b) is an upper perspective view, (c) is an exploded sectional view, (d) is a sectional view. It is. It is a figure which shows the water stop valve and holding part of the shower apparatus, (a) is a front perspective view, (b) is a back perspective view. It is a partial expanded sectional view which shows the water stop valve of the shower apparatus, (a) shows a water discharge state, (b) shows a water stop state. It is a partial expanded sectional view which shows the water stop valve of the shower apparatus. It is a disassembled perspective view of the shower apparatus which concerns on 2nd embodiment of this invention. It is a figure which shows the valve shaft of the water stop valve of the shower apparatus, (a) is a front view, (b) is a side view, (c) is CC sectional view taken on the line in (b), (d) (A) is the sectional view on the AA line in (a), (e) is the sectional view on the BB line in (a). It is a figure which shows the valve shaft of the water stop valve, a water stop button, and a water discharge button, (a) is a lower perspective view, (b) is an upper perspective view, (c) is a partially cutaway perspective view, (d) FIG. 4 is a partially cutaway perspective view. (A) is the elements on larger scale of the holding part of the shower apparatus, (b) And (c) is explanatory drawing which shows attachment of a water stop valve and a holding part. It is a partial expanded sectional view which shows the water stop valve (water discharge state) of the shower apparatus. (A)-(e) is explanatory drawing which shows the modification of the orifice part of the water stop valve, respectively.

Hereinafter, the shower apparatus 1 which concerns on embodiment of this invention is demonstrated.
As shown in FIGS. 1 and 3, the shower device 1 includes a water stop valve in a shower body in which a hot water flow channel 2 is formed and a water spout 3 is formed at the tip of the flow channel 2. .
In this specification, hot water means hot water, water, or mixed water of hot water.

As shown in FIG. 2, the shower main body includes a grip portion 4, a head portion 5, a watering plate 6, and a watering plate retaining ring 7.
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, and is operably disposed in the flow path 2 of the grip portion 4.

A metal or resin can be used for each part of the shower body, and the material of the valve shaft 8, the water stop button 9, and the water discharge button 10, and it is preferable to use a low-cost resin. Among the resins, it is more preferable to use a thermoplastic resin from the viewpoint of ease of molding. Further, among thermoplastic resins, it is particularly preferable to use an ABS (acrylonitrile, butadiene, styrene copolymer) resin having excellent rigidity.
In the first embodiment, ABS resin is used for each part.

As shown in FIG. 3, a cylindrical seal member 12 for preventing water leakage is disposed between the grip portion 4 and the water stop valve, and for preventing water leak between the grip portion 4 and the head 5. The O-ring 13 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.

As shown in FIG. 2, the grip portion 4 is a curved cylindrical member, and a connection portion connected to a hose or the like is formed at the upstream end, and a connection tube portion 14 connected to the head portion 5 is formed at the downstream end. doing.
Further, a valve housing cylinder 16 that intersects the flow path 2 is formed in the vicinity of the downstream end of the grip portion 4. The valve storage cylinder 16 penetrates the grip part 4 up and down from the abdomen to the back part of the grip part 4.

As shown in FIGS. 2 and 3, the head portion 5 is a member having a connecting cylinder portion 15 that is externally fitted to the grip portion 4 and a dome-shaped hollow portion 17 downstream of the connecting cylinder portion 15. The lower part of the part 17 is open | released and the watering board 6 can be attached now.
The watering plate 6 is formed in a disk shape having a size covering the lower part of the head 5, and a watering port 3 composed of a large number of small holes is formed. A cylindrical rising portion 18 that is inscribed in the hollow portion 17 of the head 5 is provided on the outer edge of the water spray plate 6, and an annular flange portion 19 that protrudes outward from the rising portion 18 is provided.
The sprinkling plate retaining ring 7 is a cylindrical member that is screwed to the outer periphery of the head, and projects the support portion 20 inward. The water spray plate 6 can be fixed to the head portion 5 by sandwiching the flange portion 19 of the water spray plate 6 between the support portion 20 and the lower portion of the head portion 5.

The water stop valve can switch between a water discharge state and a water stop state of the shower device 1 and can spray water by mixing air with the hot water of the flow path 2 in the water discharge state.
As shown in FIG. 4, the valve shaft 8 of the water stop valve is a member formed in a columnar shape, and has a valve shaft passage 21 that penetrates in the radial direction. Four orifice portions 22 that narrow the flow path cross-sectional area are formed (FIGS. 4C and 4E). The orifice portion 22 is formed in a small oval shape and is arranged so as to be lined up on the left and right with the valve shaft 8 attached to the shower body (FIG. 4A).
On the outer peripheral surface of the valve shaft 8, grooves for attaching O-rings 11 and 11 for preventing water leakage are formed on the upper and lower sides of the flow path 21 in the valve shaft.

Further, two aeration holes 23 are opened slightly downstream of the orifice portion 22 toward the downstream side, and an air introduction path 24 for introducing air is provided from each aeration hole 23 to the valve shaft 8. It extends in the axial direction (FIGS. 4C and 4D).
The valve shaft 8 has a thin lower end portion attached to the water stop button 9, and a flange formed at the upper end portion attached to the water discharge button 10.
As shown in FIGS. 5 (a) and 5 (b), one concave groove 25a is formed on the peripheral surface of the lower end portion at a position corresponding to one convex strip 26a formed on the water stop button 9. . Ventilation grooves 27, 27 extending in the radial direction from the air introduction path 24 are formed on the lower end surface.
Two concave grooves 25b and 25c are formed on the peripheral surface of the upper end portion at positions corresponding to the two convex strips 26b and 26c formed on the water discharge button 10. Ventilation grooves 27 and 27 extending from the air introduction path 24 to the concave grooves 25b and 25c are formed on the upper end surface.
The one concave groove 25a at the lower end and the two concave grooves 25b, 25c at the upper end are all different in position and shape, and cannot be attached to the ridges other than the ridges 26a, 26b, 26c to which they are to be attached. Therefore, assembly errors can be prevented.

Further, as shown in FIGS. 5C and 5D, the lower end surface and the upper end surface of the valve shaft 8 are provided with bulging portions 28 and 28 slightly bulging in the radial direction. The button 10 is prevented from coming off by fitting into the grooves 29 and 29 provided at the corresponding positions.
Since the valve shaft 8, the water stop button 9 and the water discharge button 10 are formed of a material that can be elastically deformed, they can be elastically deformed and released from fitting when pulled strongly.

As shown in FIGS. 5A and 5B, the water stop button 9 is formed in a bottomed cylindrical shape and is attached to the lower side of the valve shaft 8. An inner cylinder 30 is formed inside the outer cylinder of the water stop button so that it can circumscribe the lower end of the thin valve shaft. On the inner peripheral surface of the inner cylinder 30, one ridge 26a corresponding to the groove 25a of the valve shaft is formed.
The water discharge button 10 is formed in a cylindrical shape with a lid, and is attached to the upper side of the valve shaft 8. On the inner peripheral surface of the water discharge button 10, two ridges 26b and 26c corresponding to the two concave grooves 25b and 25c of the valve shaft 8 are formed.
As shown in FIG. 5, a button air introduction hole 31 communicating with the air introduction passages 24, 24 of the valve shaft 8 is formed at the center of the bottom of the water stop button 9 and the center of the lid of the water discharge button 10. ing.

The outer diameters (diameters) of the water stop button 9 and the water discharge button 10 are preferably set to 8 to 40 mm.
When the outer diameter is less than 8 mm, the water stop button 9 and the water discharge button 10 become thin, and the strength is insufficient. The outer diameter is more preferably 10 mm or more, and particularly preferably 12 mm or more.
Moreover, when the said outer diameter is larger than 40 mm, a shower apparatus will enlarge. The outer diameter is more preferably 35 mm or less, and particularly preferably 30 mm or less.

Moreover, it is preferable to set the length of the axial direction of the water stop button 9 and the water discharge button 10 to 30-70 mm.
If the length is set to be less than 30 mm, the protruding amount of the water stop button 9 and the water discharge button 10 from the shower main body is too small, and it becomes difficult to apply force when pushed. The length is more preferably 35 mm or more, and particularly preferably 45 mm or more.
If the length is set to be larger than 70 mm, the protruding amount of the water stop button 9 and the water discharge button 10 from the shower main body is too large, and it becomes difficult for the finger to be applied. The length is more preferably 65 mm or less, and particularly preferably 60 mm or less.

As shown in FIG. 6, on the outer peripheral surface of the valve housing cylinder 16 of the grip portion 4, sliding grooves are provided at positions corresponding to the ridges 26a, 26b, 26c, 26d, and 26e of the water stop button 9 and the water discharge button 10, respectively. 32 is formed.
Since the protrusions 26b, 26c, 26d, and 26e and the sliding groove 32 prevent rotation between the water stop button 9 and the water discharge button 10 and the grip portion 4, the in-valve shaft passage 21 is formed in the grip portion 4. It can be kept parallel to the flow path 2.
Furthermore, the water stop valve cannot be mounted upside down on the shower body due to the engagement between the protrusions 26b, 26c, 26d, 26e of the water stop button 9 and the water discharge button 10 and the sliding groove 32, Assembly errors can be prevented.

In order to assemble this shower apparatus, first, the sealing member 12 is inserted from the connecting tube portion 14 of the gripping portion 4 to the upstream side of the valve storage tube 16, and then the valve shaft 8 to which the O-rings 11 and 11 are attached is inserted into the valve storage tube 16. The water stop button 9 and the water discharge button 10 are attached from above and below (see FIG. 2).
Next, the O-ring 13 is attached to the connection tube portion 14 of the grip portion 4 and connected to the connection tube portion 15 of the head 5. Thereafter, the C-ring 33 is attached to the connecting tube portion 14 of the grip portion 4 from the opening at the bottom of the head portion 5 to prevent the grip portion 4 and the head portion 5 from coming off.
Finally, the packing 34 and the water spray plate 6 are sandwiched between them, and the water spray plate retaining ring 7 is attached to the head 5.

In the shower device, the cross-sectional area of the flow path P1 (see FIG. 8) of the seal member 12 is preferably set to 7 mm ² or more. If the cross-sectional area of P1 is less than 7 mm ² , the flow path resistance becomes too large and the amount of water spray becomes insufficient. The cross-sectional area of P1 is more preferably 10 mm ² or more, and particularly preferably 15 mm ² or more.
In the first embodiment, the inner diameter (diameter) of the seal member 12 is 5.5 mm, and the cross-sectional area of P1 is 23.76 mm ² .

In the valve shaft internal flow path 21, the internal diameter (diameter) of the flow path P2 (see FIG. 8) upstream from the orifice portion 22 is equal to or larger than the internal diameter of the seal member 12, and prevents water leakage by contacting the seal member 12. In order to achieve this, it is preferable that the outer diameter of the sealing member 12 be equal to or less.
In the first embodiment, the inner diameter of P2 is set to 6.5 mm.

It is preferable to set the sum of the cross-sectional areas of the flow paths P3 (see FIG. 8) of the four orifice portions 22 to be equal to or less than the sum of the cross-sectional areas of the water spray ports 3. When the total cross-sectional area of P3 is larger than the total cross-sectional area of the water spout 3, the water pressure in the flow path 2 from the orifice 22 to the water spout 3 increases, and hot water may leak from the aeration hole 23. .
Further, in order to prevent the hot water from leaking out from the air mixing hole 23 even when the water spray port 3 is clogged and the water pressure in the flow path 2 is increased, the total cross-sectional area of P3 is equal to that of the water spray port 3. More preferably, the total cross-sectional area is 80% or less.

The total cross-sectional area of P3 is preferably 7 mm ² or more. If the total cross-sectional area of P3 is less than 7 mm ² , the flow resistance becomes too large and the amount of water spray becomes insufficient.
Moreover, it is preferable to form the sum total of the cross-sectional areas of P3 smaller than the cross-sectional area of P2. If the total cross-sectional area of P3 is greater than or equal to the cross-sectional area of P2, hot water cannot be increased at the orifice portion 22.
In the first embodiment, the total cross-sectional area of P3 is 10.72 mm ² .

At a position P4 (see FIG. 8) where the orifice portion 22 and the downstream valve shaft flow passage 21 are connected, a distance of 0. 0 is provided between the outlet of the orifice portion 22 and the inner wall surface of the downstream valve shaft flow passage 21. It is preferable that a distance of 5 to 1.5 mm is open.
By providing the distance as described above between the orifice portion 22 through which water flows out and the inner wall surface of the valve shaft passage 21 in which the air mixing hole 23 is formed, air is reliably mixed from the air mixing hole 23. Can be made.
In the first embodiment, a distance of 1.2 mm is provided between the edge of the outlet of the orifice portion 22 and the inner wall surface of the downstream valve shaft passage 21 at P4.

The inner diameter of the flow path P5 (see FIG. 8) of the connection cylinder portion 14 of the gripping portion is preferably set to be equal to or larger than the outer diameter of the seal member 12 so that the seal member 12 can be inserted during assembly.
In the first embodiment, the inner diameter of P5 is set to 10 mm that is equal to or larger than the outer diameter of the seal member 12.

The total cross-sectional area of the air mixing holes 23, 23 is preferably set as large as possible in order to reliably mix air into the hot water.
In the first embodiment, the total cross-sectional area of the aeration holes 23 and 23 is set to 5.58 mm ² .

In FIG. 7, white arrows indicate the flow of hot water, and broken arrows indicate the flow of air.
In this shower apparatus, as shown in FIG. 7A, when the upper water discharge button 10 is pushed in, the flow path 21 in the valve shaft matches the flow path 2 of the grip portion 4, and water is discharged from the water spout 3. Can do.
At this time, the hot water passes through the orifice portion 22 to increase the speed, and the negative pressure generated downstream of the orifice portion 22 mixes the air from the air mixing hole 23 with the hot water to perform watering with a good skin feel. Water consumption can be reduced by making the consumption of hot water less than apparent.

Moreover, as shown in FIG.7 (b), if the lower water stop button 9 is pushed in, the flow path 21 in a valve shaft will differ from the flow path 2, and the water discharge from the water spout 3 can be stopped.
At this time, the flow path 21 in the valve shaft and the air mixing hole 23 are blocked by the inner peripheral surface of the valve housing cylinder 16 and do not communicate with the upstream and downstream flow paths 2. Therefore, the air does not leak from the button air introduction hole 31 through 24.

When this shower apparatus is attached to a predetermined shower hanger (not shown) in a bathroom or the like, the head is positioned on the upper side and the gripping part is positioned on the lower side (see FIG. 1).
At this time, the hot water remaining in the head 5 is accumulated in a water retention chamber 35 (see FIG. 4D) formed downstream of the air mixing hole 23 of the valve shaft 8, and the air mixing hole 23 is submerged in this hot water. To do. The water retention chamber 35 is formed wider than the orifice portion 22 and the valve shaft passage 21 upstream of the orifice portion 22. The hot water in the water retaining chamber 35 remains in the water retaining chamber 35 without leaking from the orifice portion 22 and the air mixing hole 23 due to surface tension.

  In the shower device 1 of the first embodiment, the orifice portion 22 and the air mixing hole 23 are provided in the valve shaft 8 of the water stop valve for switching between water discharge and water stop, so that the air is mixed with the hot water. The shower apparatus 1 can be reduced in size and the manufacturing cost can be reduced without providing parts to increase the number of parts.

  Further, since the orifice portion 22 is provided in the valve shaft 8 and the seal member 12 is disposed in the shower main body upstream from the valve shaft 8, when the water stop valve is operated to make the water stop state, the upstream side It is possible to reliably prevent hot water supplied from the flow path 2 from flowing into the valve shaft flow path 21, the orifice portion 22, the head portion 5, or the aeration hole 23.

  Furthermore, when the flow path 21 in the valve shaft is made different from the flow path 2 of the shower main body and the discharge of hot water is stopped, the air mixing hole 23 is in a non-communication state with respect to the flow path 2 of the shower main body, It is possible to prevent the hot and cold water in the upstream and downstream flow paths 2 from leaking out of the air mixing hole 23 simply by setting the water stop valve to the water stop state. For this reason, it is not necessary to provide a special device for preventing leakage of hot water from the aeration hole 23, and the shower device 1 can be reduced in size and the manufacturing cost can be reduced.

  Moreover, since the valve shaft 8 can be detachably attached to the shower body by attaching / detaching the water stop button 9 or the water discharge button 10 to the valve shaft 8, the valve shaft 8 can be detached from the shower body and cleaned. Maintenance such as replacement when damaged can be easily performed.

  Further, in a posture in which the shower body is attached to a predetermined shower hanger, hot water is accumulated in the water retention chamber 35, and the aeration hole 23 is submerged in the hot water, so that water-soluble impurities are accumulated in the water retention chamber 35. Since the solid impurities that are eluted and are lighter than water float in this hot water, it is possible to prevent the impurities from adhering to the aeration holes 23 and the orifice portion 22 to cause clogging.

  Furthermore, by forming the button air introduction hole 31 in the water stop button 9 and the water discharge button 10, the resistance of the passage through which air passes from the outside air to the air mixing hole 23 is reduced, and the air is efficiently mixed into the hot water. be able to.

<Second embodiment>
In the first embodiment, the water spray plate 6 is attached to the head 5 by the water spray plate retaining ring 7, whereas the shower device 1 of the second embodiment penetrates the center of the water spray plate 6 as shown in FIG. The watering plate 6 is attached to the head 5 by a set screw 36.
For this reason, a hole for passing the set screw 36 is formed in the center of the watering plate 6 of the second embodiment. Further, in the dome-shaped hollow portion 17 of the head portion 5, a female screw cylinder (not shown) in which a female screw screwed to the set screw 36 is engraved on the inner surface is suspended from the top surface.
The sprinkling plate 6 is applied from below the head 5 and the set screw 36 is passed through the sprinkling plate 6 and screwed into the female screw cylinder so that the cap portion 37 of the set screw 36 supports the sprinkling plate 6 from below and the head. 5 can be fixed.

Further, in the first embodiment, the positioning is performed by the protrusions 26a, 26b, 26c provided on the water stop button 9 and the water discharge button 10 and the concave grooves 25a, 25b, 25c provided on the valve shaft 8, whereas In the water stop valve of the second embodiment, as shown in FIG. 11, protrusions 39a, 39b, 39c, 39d, 39e, 39f provided on the valve shaft 8 and notches 38a provided on the water stop button 9 and the water discharge button 10 are provided. , 38b, 38c, 38d, 38e, 38f.
As shown in FIGS. 11 (a) and 11 (b), three ridges 39a, 39b, 39c, 39d, 39e, and 39f are provided on the inner peripheral surface of the air introduction passage 24 of the valve shaft 8 at the upper and lower portions. Forming. The upper three ridges 39a, 39b, 39c and the lower three ridges 39d, 39e, 39f have different positions and axial lengths. The water stop button 9 can be attached only to the lower part of the valve shaft 8 at the correct angle.
The water stop button 9 and the water discharge button 10 are respectively formed with inner cylinders 40 and 41 fitted into the valve shaft 8. The respective inner cylinders 40 and 41 form notches 38a, 38b, 38c, 38d, 38e, and 38f at positions where the ridges 39a, 39b, 39c, 39d, 39e, and 39f of the valve shaft 8 are to be attached.

Further, as shown in FIGS. 11 (c) and 11 (d), two outer protrusions 42, 42, 42, 42 are provided on the outer peripheral surfaces of the inner cylinders 40, 41 of the water stop button 9 and the water discharge button 10, By fitting in fitting holes 43, 43, 43, 43 opened at corresponding positions on the peripheral surface of the valve shaft 8, the valve shaft 8 is prevented from coming off.
Similarly to the first embodiment, the valve shaft 8, the water stop button 9, and the water discharge button 10 are made of an elastically deformable material. Therefore, when pulled strongly, they can be elastically deformed to release the fitting.
Since the valve shaft 8, the water stop button 9, and the water discharge button 10 are detachable as described above, the valve shaft 8 and other water stop valve components can be attached to and detached from the shower body as in the first embodiment. Can be easily installed and maintained and replaced.

Further, as shown in FIGS. 11 (a), 11 (b), 12 (b), and 12 (c), the outer peripheral surfaces of the water stop button 9 and the water discharge button 10 are partially extended in the axial direction. 44b is formed, and when the water stop valve is assembled, the extension parts 44a and 44b of the water stop button 9 and the water discharge button 10 cover the periphery of the flow path 2 of the grip part 4. The extension portions 44 a and 44 b are formed only on the side surface corresponding to the upstream side of the in-valve shaft passage 21.
As shown in FIG. 12, in the grip part 4, since the protrusions 45 and 45 are provided on the left and right of the place where the extension parts 44a and 44b are located when the shower device 1 is assembled, the grip part 4 and the water stop valve The rotation is prevented, and the in-valve shaft channel 21 can be kept parallel to the channel 2 of the grip portion 4.
Further, in the grip portion 4, protrusions 46 and 46 are provided on the opposite side of the location where the extension portions 44 a and 44 b are located when the shower device 1 is assembled. If the upstream and downstream sides of the water stop valve are reversed and attached to the grip portion 4, the extension portions 44a and 44b cannot be assembled by colliding with the projections 46 and 46, so that an assembly error can be prevented.

Further, in the first embodiment, the two orifice portions 22 are formed in the flow path 21 in the valve shaft of the valve shaft 8, whereas in the second embodiment, as shown in FIGS. Five orifice portions 22 are formed in the eight valve shaft flow paths 21.
The orifice portion 22 of the valve shaft of the second embodiment is formed in an elliptical shape that is smaller than the orifice portion of the first embodiment. In the state where the valve shaft 8 is attached to the shower main body, the point that the five orifice portions 22 are arranged side by side is the same as that of the first embodiment.

Further, in the first embodiment, the O-rings 11 and 11 are externally fitted in the grooves carved on the outer peripheral surface of the valve shaft 8, whereas in the water stop valve of the second embodiment, FIG. 9 and FIG. As shown, an O-ring groove is not formed on the outer peripheral surface of the valve shaft 8, and the O-rings 11 and 11 are held by the valve housing cylinder 16 of the grip portion 4 by O-ring pressing members 47 and 47.
As shown in FIGS. 9 and 13, in the second embodiment, the O-ring 11 is accommodated in a groove carved in the upper end of the valve storage cylinder 16 and is pressed by an O-ring pressing member 47 so as not to be released upward. . Further, the O-ring 11 is also housed in a groove carved in the lower end of the valve housing cylinder 16 and is pressed by the O-ring pressing member 47 so as not to be removed downward.
Each O-ring pressing member 47 has an annular portion 48 having an inner diameter that allows the valve shaft 8 to pass therethrough and does not allow the O-ring 11 to pass therethrough, and two mounting arm portions 49 extending from the annular portion 48 in the axial direction. The projection at the tip of the mounting arm 49 is attached to the shower body by fitting into a groove (not shown) formed in the head 5.

In FIG. 13, white arrows indicate the flow of hot water, and broken white arrows indicate the flow of air.
In the first embodiment, the button air introduction hole 31 communicating with the air mixing hole 23 is formed in the water stop button 9 and the water discharge button 10, whereas in the water stop valve of the second embodiment, as shown in FIG. As described above, the button air introduction hole is not provided in the water stop button 9 and the water discharge button 10, and air is taken in from the gap between the water stop button 9 or the water discharge button 10 and the shower body, and the water stop button 9 or the water discharge button 10. And the valve shaft 8, the air flow groove 27, and the air introduction path 24 of the valve shaft 8, in turn, are mixed into the hot water of the flow path 2 from the air mixing hole 23.
For this reason, the water stop button 9 and the water discharge button 10 shield the valve shaft 8, its air introduction path 24, and the air mixing hole 23, and cannot be seen from the outside.

In the shower device of the second embodiment, the air mixing hole 23 and the air introduction path 24 are shielded by the water stop button 9 and the water discharge button 10, so that an air sound is generated when air is mixed into the hot water through the air mixing hole 23. Leakage to the outside can be reduced.
Moreover, since the valve shaft 8, its air introduction path 24, and the air mixing hole 23 are shielded and cannot be visually recognized from the outside, the appearance of the shower device 1 is not impaired.

Furthermore, the outside air is taken in through the gap between the water stop button 9 or the water discharge button 10 and the shower main body (the grip part 4 and the head part 5), so that the water stop button 9 or the water discharge button 10 and the grip part are used in a normal usage method. Since all the gaps with 4 cannot be closed by hand, the user does not unintentionally close the air intake port by hand, and the air can be mixed stably with hot water.
Further, even if dust or the like is clogged in the gap between the water stop button 9 or the water discharge button 10 and the grip portion 4, the dust or the like is removed by moving the water stop button 9 or the water discharge button 10 relative to the grip portion 4. It is possible to mix air with hot water stably.

<Other variations>
The water sprinkling port 3 is not limited to the one that performs shower-like watering as in the first embodiment or the second embodiment, and the watering port 3 that performs straight watering or other types of watering. Good.
In the first embodiment and the second embodiment, the water stop valve for moving the valve shaft 8 up and down is provided. By rotating the valve shaft around the shaft, the flow path in the valve shaft is changed to the flow path of the gripping portion. A water stop valve may be provided to match or be different.

The shape of the orifice portion 22 is not limited to that in which the long holes such as an ellipse and an oval are arranged in a single line on the left and right as in the first embodiment and the second embodiment (FIG. 14B), but also in a circular shape. These holes may be arranged in a single line on the left and right (FIG. 14A).
Alternatively, long holes and circular holes may be mixed and arranged in a single line on the left and right (FIG. 14C). At this time, the center of the height of each orifice portion is aligned.
Further, as shown in the figure, a circular hole may be provided at the center, and arc-shaped holes may be arranged on the left and right sides thereof (FIG. 14 (d)).
In addition to this, holes having various shapes may be employed, and the holes may be appropriately shifted vertically and horizontally (FIG. 14E).

Moreover, you may enable it to accommodate a purification | cleaning material in the flow path of the holding part upstream from a water stop valve so that replacement | exchange is possible. Thereby, impurities can be filtered by the purification material and the purified water can be sprinkled, and the orifice portion, the air mixing hole, and the water spout can be prevented from being clogged with impurities.
Moreover, since water can be saved by mixing air with hot water, the life of the water purifier can be prolonged.

<Third embodiment>
The third embodiment is a joint including a flow path structure having a water stop valve according to the first embodiment, the second embodiment, or a modification as shown in FIGS.
This joint forms a flow path 2 through which hot water passes, and has connection portions with other members at the upstream end and the downstream end of the flow path 2. As the connection portion, any mounting structure other than a screw coupling screw groove may be employed.

In the flow path 2, a water stop valve that can open and close the flow path 2 by operating the valve shaft 8 as shown in FIGS. 7 and 13 is provided.
The valve shaft flow path 21 of the valve shaft 8 is formed with an orifice 22 and an air mixing hole 23 that communicates with the outside air and introduces air. Thereby, air can be mixed with the hot water passing through the flow path 2.

This joint is attached, for example, between the root of a shower head (shower device) that does not have a mechanism for mixing air into hot water or a water stop valve and another hose joint provided at the tip of a hose or the like. be able to.
Thereby, these functions can be added later to a faucet such as a shower head or a water discharge device that does not have a mechanism for mixing air into hot water or a water stop valve.

  Further, by providing the orifice portion 22 and the air mixing hole 23 on the valve shaft 8 of the water stop valve that opens and closes the flow path 2, a special part is provided to increase the number of parts in order to mix air with hot water. In addition, the flow path structure can be simplified and the manufacturing cost can be reduced.

DESCRIPTION OF SYMBOLS 1 Shower apparatus 2 Flow path 3 Water spout 4 Gripping part 5 Head 8 Valve shaft 9 Water stop button 10 Water discharge button 11 O-ring 12 Seal member 21 Valve shaft flow path 22 Orifice part 23 Air mixing hole 24 Air introduction path 25a, 25b, 25c Concave groove 26a, 26b, 26c, 26d, 26e Convex 27 Ventilation groove 28 Swelling part 29 Groove 30 Inner cylinder 31 Button air introduction hole 32 Sliding groove 35 Water retention chamber 38a, 38b, 38c, 38d, 38e , 38f Concave groove 39a, 39b, 39c, 39d, 39e, 39f Convex 40, 41 Inner cylinder 42a, 42b, 42c, 42d Protrusion 43a, 43b, 43c, 43d Fitting hole 44a, 44b Extension 45 Convex 46 Protrusion

Claims (5)

In a shower apparatus having a shower body in which a flow path through which hot water passes is formed and a water spout for discharging the hot water is formed at the tip of the flow path,
A valve shaft that forms a valve shaft internal passage penetrating the inside is operably disposed in the flow passage, and water is discharged from the water spout by matching the valve shaft internal flow passage with the flow passage. While providing a water stop valve for stopping water discharge from the water spout by making the valve shaft flow path different from the flow path,
The valve shaft is formed with an aeration hole that communicates with the outside air and introduces air into the flow path.
An operation button for manual operation is attached to the valve shaft, the air mixing hole is shielded by the operation button and cannot be visually recognized from the outside , and
The valve shaft has an orifice part that speeds up the hot water in the valve shaft flow path upstream from the formation position of the aeration hole,
A shower apparatus , wherein a seal member for preventing water leakage between the valve shaft and the shower body is disposed in a flow path of the shower body upstream of the orifice portion . In a shower apparatus having a shower body in which a flow path through which hot water passes is formed and a water spout for discharging the hot water is formed at the tip of the flow path,
A valve shaft that forms a valve shaft internal passage penetrating the inside is operably disposed in the flow passage, and water is discharged from the water spout by matching the valve shaft internal flow passage with the flow passage. While providing a water stop valve for stopping water discharge from the water spout by making the valve shaft flow path different from the flow path,
The valve shaft is formed with an aeration hole that communicates with the outside air and introduces air into the flow path.
An operation button for manual operation is attached to the valve shaft, the air mixing hole is shielded by the operation button and cannot be visually recognized from the outside, and
Said aeration hole is communicated with the gap between the operation buttons of the shower body and the valve shaft, characterized and to Resid showers device that outside air is introduced from the gap. A water retention chamber is provided in the flow path downstream from the aeration hole,
In posture attached to predetermined shower hanger is to be placed the shower body, the distilled water hot water is accumulated in the chamber, the shower apparatus according to claim 1 or 2, wherein the aeration holes, characterized in that the submerged this hot water . The air mixing hole is in a non-communication state with respect to the flow path of the shower main body when the valve shaft flow path is different from the flow path and the discharge from the water spout is stopped. Item 3. A shower device according to item 1 or 2 . The shower apparatus according to claim 1 or 2 , wherein the valve shaft is detachably attached to the shower body.

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