JP3747323B1 - Shower nozzle - Google Patents

Abstract

Disclosed is a shower nozzle that can discharge hot water simultaneously with the operation of a water stop cock and does not need to perform useless stoppage with a simple configuration.
A shower head 10 is connected to a lower end of a main body 11 for supplying hot water from a hot and cold mixing tap, and shower water is discharged from an upper nozzle 12. By arranging the partition pipe 13 formed in the main body 11, an air inflow chamber 14 is formed between the partition pipe 13 and the main body 11, and an orifice member 15 is interposed in the lower end portion of the partition pipe 13. The decompression chamber 13b is formed on the downstream side, the air suction port 13c is formed in the partition tube 13 surrounding the decompression chamber 13b, and the air suction is performed on the main body 11 corresponding to the upper portion of the partition tube 13. Forming the mouth 11a.
[Selection] Figure 2

Description

  The present invention relates to a shower nozzle used in a shower room, and more particularly to a shower nozzle in which air is mixed into shower water discharge.

Various shower nozzles have been proposed for use in bathrooms and shower rooms. Among them, shower nozzles designed to mix air into shower water discharge are good for the body because the water discharge is interrupted due to air mixing. For example, it is proposed in Patent Document 1 because it is a stimulus and a water-saving effect is achieved.
Japanese Patent Laid-Open No. 2002-119435, abstract, representative figure, paragraph 0009

  The "foam shower device" described in this Patent Document 1 is "providing a foam shower device capable of mixing air from an ejector unit that reliably mixes air into discharged water" even under low water pressure. As shown in FIG. 5, “in the foam shower device having an ejector part that mixes air into the water discharge, an air supply means for supplementarily supplying air to the air suction part of the ejector is provided”. This is considered to have a function of “a sufficient air mixing rate can be realized even under low water pressure conditions, and installation restrictions on water pressure can be remarkably improved”.

  However, in the “foam shower device” described in Patent Document 1, as shown in FIG. 5, “the hot water is a reduced diameter nozzle provided in the middle of the water passage in the shower head 1 from the water supply pipe 2. A vent hole 6 for sucking air is provided in the outlet peripheral wall of the nozzle 8. The hot water supplied to the shower head 1 passes through the nozzle 8 having a reduced diameter, so that the hot water flows at a flow velocity. The air is drawn in from the vent hole 6 provided near the water discharge port of the nozzle 8 which has been further reduced in diameter and mixed with hot water, and hot water is discharged from the water spray plate 7 provided at the tip of the shower head 1. (Paragraph 0009 of Patent Document 1), the following phenomenon occurs.

  That is, in the “foam shower device” of Patent Document 1, “the vent hole 6 for sucking air is provided in the outlet peripheral wall of the nozzle 8”, and the vent hole 6 is as shown in FIG. And “provided near the water outlet of the nozzle 8 having a reduced diameter”. That is, the “sprinkling plate 7” is located in the upper part of FIG. 5 and the “vent hole 6” is located in the lower part, and this foam shower device was hung on the wall even when in use. Sometimes, the “vent hole 6” is located in the lower part.

  As described above, when the “vent hole 6” is located at the lower part, when the discharge of the shower by the “foam shower device” is stopped, the hot water remaining in the shower head 1 is squeezed through the “vent hole 6”. It will leak out. This means that the hot water leaks out even though you intend to stop the shower, and you have to do the useless thing of doing it again until it stops.

  Accordingly, the present inventors have completed the present invention as a result of various studies on how to make it possible to instantaneously stop the hot water discharge for this type of shower nozzle.

  That is, an object of the present invention is to provide a shower nozzle having a simple configuration that can discharge hot water simultaneously with the operation of the water stop cock and does not need to perform useless resetting.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“In the shower head 10 in which a hose 20 for supplying hot water from a hot and cold water mixing tap is connected to the lower end of the main body 11 and shower water is discharged from the upper nozzle 12,
By disposing the partition pipe 13 whose inside is the hot water inflow chamber 13 a in the main body 11, an air inflow chamber 14 is formed between the partition pipe 13 and the main body 11,
By interposing the orifice member 15 in the lower end portion of the partition pipe 13, a decompression chamber 13b is formed on the downstream side, and an inner suction port 13c of air is formed in the partition pipe 13 surrounding the decompression chamber 13b. Furthermore, by forming the outer suction port 11a of air in the main body 11 corresponding to the upper part of the partition tube 13,
When hot water passes through the orifice member 15, the air from the outer suction port 11a is supplied into the hot water inflow chamber 13a of the partition tube 13 from the inner suction port 13c opened in the decompression chamber 13b. Shower head 10 "
It is.

  That is, the shower head 10 according to the first aspect has an appearance as shown in FIG. 1, and a hose 20 for supplying hot water from a water heater or a hot and cold water mixing tap (not shown) to the lower end of the main body 11. It is connected and discharges shower water from the upper nozzle 12, and shower water can be taken while air is mixed in the discharged water.

Further, in this shower head 10, as shown in FIG. 2, a partition pipe 13 whose inside is a hot water inflow chamber 13 a is disposed in the main body 11, and thereby, between the partition pipe 13 and the main body 11. The air inflow chamber 14 is formed in the above.

  Further, in the shower head 10, as shown in FIG. 2, an orifice member 15 is interposed in the lower end portion of the partition pipe 13, and a decompression chamber 13b is formed on the downstream side of the orifice member 15, An air suction port 13c is formed in the partition tube 13 surrounding the decompression chamber 13b. Further, the air suction port 11 a described above is formed in the main body 11 corresponding to the upper part of the partition tube 13.

In the shower head 10 of the present invention configured as described above, when a cock such as a hot and cold mixing tap (not shown) is opened and the shower head 10 is to be used, hot water is supplied from the hose 20 so that hot water is supplied through the orifice member 15. pass. At this time, since the decompression state is formed in the decompression chamber 13b, the air in the air inflow chamber 14 or the remaining water flows into the hot water of the partition pipe 13 from the inner suction port 13c opened in the decompression chamber 13b. It is supplied into the chamber 13a. Of course, when air or water in the air inflow chamber 14 is sucked, external air is sucked from the outer suction port 11 a formed in the main body 11.

At this time, the reason why the “water” is supplied into the hot water inflow chamber 13a of the partition pipe 13 is that the water remains when the shower head 10 is used first. Once sucked, the outside air will be sucked into the hot water supplied from the hose 20 as bubbles.

As a result, when the shower head 10 is used, a mixture of hot water and air is discharged as foam shower water from each nozzle hole 12a of the nozzle 12 constituting the shower head 10, and the user's It will stimulate the body. This is because when the shower head 10 is used to take shower water, the continuous hot water flow does not hit the body, but the hot water hits intermittently. Moreover, the hot water is saved by the amount of air that cuts off the hot water, and the function of two birds with one stone is exhibited.

  Here, when the use of the shower head 10 is stopped, water discharge from the nozzle 12 stops, and hot water at a position higher than the outer suction port 11a flows down in the hot water inflow chamber 13a of the shower head 10 by its own weight. However, the flowing hot water flows into the air inflow chamber 14 from the inner suction port 13c opened in the hot water inflow chamber 13a. This is because the air inflow chamber 14 has only air and no residual water while the shower head 10 is used. For this reason, if the use of the shower head 10 is stopped, the hot water flowing down in the hot water inflow chamber 13a flows into the air inflow chamber 14 while pushing out the air in the air inflow chamber 14 from the outer suction port 11a to the outside. .

  That is, when the use of the shower head 10 is stopped, the hot water remaining in the shower head 10 is stored in the hot water inflow chamber 13a and the air inflow chamber 14, and the conventional example shown in FIG. As in the case of the above, it does not leak out of the shower head 10.

  Therefore, according to the shower head 10 of the first aspect, when the supply of hot water to the shower head 10 is stopped, the residual water does not leak outside, and the hot and cold mixing plug is wastefully stopped. It is not necessary.

Moreover, in order to solve the said subject, the means which the invention which concerns on Claim 2 took about the shower head 10 of the said Claim 1,
“The volume of the air inflow chamber 14 is made larger than the volume in the main body 11 on the upper side from the outer suction port 11a”
It is.

  In other words, in the shower head 10 according to the second aspect, the hot water remaining inside when the water is stopped is completely stored in the shower head 10. That is, when the shower head 10 according to claim 2 tries to flow the hot water remaining in the main body 11 on the upper side from the outer suction port 11a when the pressure from the hose 20 disappears, all or more Is returned to the air inflow chamber 14.

  Therefore, the shower head 10 according to the second aspect exhibits the same function as that of the first aspect, and can reliably retain the residual water when the shower water is stopped. It has become.

Furthermore, in order to solve the above-mentioned problem, the means taken by the invention according to claim 3 is the shower head 10 according to claim 1 or 2,
"By accommodating a screw plate 16 in water-inflow chamber 13a that, by the curved surface of the screw plate 16, and so that air supplied to the water-inflow chamber 13a is finely divided"
It is.

  That is, in the shower head 10 according to claim 3, as shown in FIG. 2, the screw plate material 16 is accommodated in the partition tube 13, and hot water and bubbles flow along the twisted surface of the screw plate material 16. It is what I did. This screw plate material 16 is obtained by twisting a metal plate material having the same width as the diameter of the partition tube 13, and the twist amount is about 1 to 3 times per 6 cm, and 1.5 times. Is most preferred.

  In particular, since turbulent flow is generated when hot water and bubbles flow along the twisted screw plate material 16, the bubbles are finely divided by the turbulent flow. The presence of fine bubbles means that the shower water is also finely divided, so that the stimulus given to the body of the shower water becomes much softer.

  Therefore, the shower head 10 according to the third aspect can exhibit a mechanism similar to that of the first or second aspect and can give the shower water a softer stimulus.

As described above, in the present invention,
“In the shower head 10 in which a hose 20 for supplying hot water from a hot and cold water mixing tap is connected to the lower end of the main body 11 and shower water is discharged from the upper nozzle 12,
By disposing the partition pipe 13 whose inside is the hot water inflow chamber 13 a in the main body 11, an air inflow chamber 14 is formed between the partition pipe 13 and the main body 11,
By interposing the orifice member 15 in the lower end portion of the partition pipe 13, a decompression chamber 13b is formed on the downstream side, and an inner suction port 13c of air is formed in the partition pipe 13 surrounding the decompression chamber 13b. Furthermore, by forming the outer suction port 11a of air in the main body 11 corresponding to the upper part of the partition tube 13,
When hot water passes through the orifice member 15, the air from the outer suction port 11a is supplied into the hot water inflow chamber 13a of the partition pipe 13 from the inner suction port 13c opened in the decompression chamber 13b.
Therefore, the shower nozzle 10 can be provided with a simple configuration that can discharge hot water simultaneously with the operation of the water stop cock and does not need to perform unnecessary resetting. It was possible.

  Next, the invention according to each claim configured as described above will be described with respect to the shower head 10 which is the best mode shown in the drawings. FIG. 1 is a perspective view of the shower head 10 according to the present invention. It is. As shown in FIG. 1, the shower head 10 has an outer appearance almost the same as that of the conventional one, but an outer suction port 11 a is opened slightly above the portion of the main body 11 held by the hand. Of course, the shower head 10 is connected to a hot water supply source such as a hot water mixing tap and a hot water heater (not shown), and therefore, a hose 20 to which hot water is supplied is connected to the lower end thereof. The water is discharged from each nozzle hole 12a of the nozzle 12 provided at the upper end of the main body 11 in the figure.

  As shown in FIG. 2, a partition pipe 13 is accommodated inside the main body 11, and the inside of the partition pipe 13 is a hot water inflow chamber 13a. The hose 20 described above communicates with the lower portion of the hot water inflow chamber 13a, and the nozzle holes 12a of the nozzle 12 communicate with the upper portion.

  A gap between the partition tube 13 and the main body 11 is formed as an air inflow chamber 14, and the volume of the air inflow chamber 14 is larger than the volume in the main body 11 on the upper side from the outer suction port 11a. Try to increase. That is, the air inflow chamber 14 can completely store the staying water located above the outer suction port 11a.

  Further, as shown in FIG. 2, an orifice member 15 is interposed between the partition pipe 13 and the hose 20 described above. The orifice member 15 has a cross-sectional shape in which the hot water passage is squeezed in the middle, and the pressure is reduced while increasing the flow rate of hot water from the hose 20 at the squeezed portion. The orifice member 15 exerts a pressure reducing action in the decompression chamber 13b when hot water is discharged to the lower portion of the partition tube 13 located in the upper portion of the drawing, that is, the decompression chamber 13b.

  An inner suction port 13c is formed in the partition tube 13 located around the decompression chamber 13b, and the inner suction port 13c communicates with the outer suction port 11a on the main body 11 side via the air inflow chamber 14. Yes. That is, when hot water flows into the shower head 10, a decompressed state is formed in the decompression chamber 13b. Due to this decompressed state, external air is allowed to enter the outer suction port 11a, the air inflow chamber 14, and the inner suction port 13c. Thus, the water is sucked into the hot water inflow chamber 13a of the partition pipe 13 through the.

  Moreover, in the shower head 10 of this best mode, as shown in FIG. 2, the screw plate material 16 is accommodated in the hot water inflow chamber 13 a of the partition pipe 13. The screw plate material 16 is obtained by twisting a metal plate having a width approximately equal to the diameter of the partition tube 13, and the twist amount is 1 to 3 per 6 cm length of the screw plate material 16 in this best mode. About 1.5 times, 1.5 times being the most preferable.

  Due to the presence of the screw plate material 16, the hot water flowing through the hot water inflow chamber 13a and the sucked air flow along the twisted curved surface of the screw plate material 16, and the twisted flow causes the air to become fine bubbles. It is divided.

  In the shower head 10 of the best mode, as shown in FIGS. 1 and 2, a non-slip 17 is formed on a portion of the main body 11 that is gripped by the hand, and the grip of the main body 11 is slid by the non-slip 17. It can be done without any problems.

It is a perspective view of the shower head concerning the present invention. It is a longitudinal cross-sectional view of the shower head. It shows the appearance of the shower head. (A) is a front view and (B) is a rear view. Fig. 2 shows the state of each part of the shower head. (A) is a cross-sectional view taken along line 1-1 in Fig. 2, and (b) is a cross-sectional view taken along line 2-2 in Fig. 2. Figure (c) is a bottom view of the tower shower head. It is a longitudinal cross-sectional view which shows the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shower head 11 Main body 11a Outside suction port 12 Nozzle 12a Nozzle hole 13 Partition pipe 13a Hot water inflow chamber 13b Decompression chamber 13c Inner suction port 14 Air inflow chamber 15 Orifice member 16 Screw plate material 17 Non-slip 20 Hose

Claims (3)

In the shower head where a hose that supplies hot water from a hot and cold water mixing tap is connected to the lower end of the main body and shower water is discharged from the upper nozzle,
By arranging a partition pipe in which the inside becomes a hot water inflow chamber in the main body, an air inflow chamber is formed between the partition pipe and the main body,
By installing an orifice member in the lower end portion of the partition tube, a decompression chamber is formed on the downstream side, an air suction port is formed in the partition tube surrounding the decompression chamber, and the partition tube By forming an outer suction port of air in the main body corresponding to the upper part of
When hot water of the orifice in the member passes, shower, characterized in that said air from outside the suction port, and from the inner suction port opened to the vacuum chamber so as to supply to the hot water inflow chamber of said partition tube head.   2. The shower head according to claim 1, wherein a volume of the air inflow chamber is larger than a volume in the main body on the upper side from the outer suction port. Wherein by accommodating the screw plate on the hot water inflow chamber, the curved surface of the screw plate, according to claim 1 or claim, characterized in that air the supplied to the hot water inflow chamber has to be finely divided 2. The shower head according to 2.

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