JP2013252396A - Showerhead - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a showerhead capable of generating microbubbles and spraying liquid in large amounts with a simple construction.SOLUTION: A communicating member 20 is disposed in a body portion 15 of a showerhead 10. In the communicating member 20, a plurality of through-holes 24 as pores for microbubbles and a large pore 25 are provided. In the communicating member 20, a plurality of projecting portions 22 are provided, and in each projecting portion 22, a through-hole 24 is formed. When tap water passes through the through-hole 24, as a result of pressure change, gas dissolved in the tap water appears as microbubbles in a mixed state in the tap water. From a first stage to a fourth stage, the amount of the water is sequentially adjusted in accordance with the number of through-holes 24 that have been opened. At a fifth stage, which is for a maximum water amount, the large pore is opened.

Description

  The present invention relates to a shower head for discharging a liquid containing microbubbles.

A shower head that discharges water containing microbubbles (fine bubbles) has been disclosed for beauty and health (see Patent Documents 1 and 2).
The shower head described in Patent Document 1 is configured to be switched between water containing fine bubbles containing fine bubbles generated in the fine bubble generator and water not containing fine bubbles. In this case, it is described that the bubble diameter of the fine bubbles is adjusted by changing the channel width.

  On the other hand, the shower head described in Patent Document 2 is provided with a Venturi tube having a thin tube diameter. Thereby, a high vacuum is generated by increasing the internal speed of the Venturi tube, and micro bubbles are generated by utilizing the fact that fine bubbles are generated by separating supersaturated air from water.

JP 2007-89710 A (FIGS. 13 to 15) JP 2011-114771 A (FIGS. 1 to 3)

  Patent Document 1 describes a shower head that changes a flow rate width when spraying water containing fine bubbles. However, in this shower head, since the fine bubble-containing water containing fine bubbles is generated by the fine bubble generator, the entire configuration becomes large.

  Further, in the shower head described in Patent Document 2, by increasing the in-pipe speed, fine bubbles are generated from water with a relatively simple configuration. However, in order to generate fine bubbles, it is necessary to reduce the diameter of the pipe and increase the speed in the pipe. It is difficult to spray a large amount of water and it is difficult to adjust the amount of water.

  This invention is made paying attention to the subject which exists in such a prior art. An object of the present invention is to provide a shower head that can generate microbubbles with a simple configuration and can spray a large amount of liquid.

  In order to achieve the above object, the present invention provides a main body portion in which an introduction port for introducing a liquid is formed and a liquid that is provided inside the main body portion and that passes through the liquid introduced from the introduction port side. A microbubble generating part in which a microbubble hole for generating bubbles, a large hole having a large opening area with respect to the microbubble hole, and a liquid that has passed through the microbubble generating part are sprayed to the outside. And a spray part having a spray hole.

  As a result, a microbubble hole for generating microbubbles and a large hole having a large opening area are used with a simple configuration, so that more liquid can be discharged while generating microbubbles. Can do.

  In the above-described configuration, the amount of liquid passing through the microbubble generation unit is adjusted by adjusting the number of holes closed by the blocking unit and the blocking unit configured to block the holes formed in the microbubble generation unit. An adjustment unit for adjustment is provided. Thus, by changing the number of holes closed by the closing member, the amount of liquid sprayed by the shower head can be adjusted with a simple configuration.

  In the above-described configuration, the adjustment unit is configured to open a large hole in the case of the maximum discharge amount of the liquid and to be movable so as to close the large hole in the case of not being the maximum discharge amount. . Thereby, when spraying a small quantity, the liquid containing many microbubbles can be sprayed.

  In the above-described configuration, the microbubble hole and the large hole closed by the closing portion are formed on a concentric circle having the same rotation center as the adjustment portion in the microbubble generating portion. Features. Thereby, since the quantity of a liquid can be adjusted by opening and closing the hole formed on the inner periphery, the adjustment part can be made compact.

  According to the present invention, it is possible to provide a shower head that can generate microbubbles with a simple configuration and can also spray a large amount of liquid.

The right side sectional view of the important section of the shower head of one embodiment. It is an external view of a shower head, (a) is a front view, (b) is a rear view. It is a figure of the communicating member used for a shower head, (a) is the rear view seen from the inflow side, (b) is the front view seen from the discharge side, (c) is in the cc line of (a). Sectional drawing. The top view of the closure member used for a shower head. It is a figure explaining the positional relationship of the obstruction | occlusion member and communication member in water quantity adjustment, Comprising: (a) is the 1st step, (b) is the 2nd step, (c) shows the case of the 3rd step. It is a figure explaining the positional relationship of the obstruction | occlusion member and communication member in water quantity adjustment, Comprising: (a) shows the case of a 4th step, (b) shows the case of a 5th step.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to FIGS.
In the present embodiment, the shower head 10 having the cross-sectional structure shown in FIG. 1 is used.
First, the appearance of the shower head 10 will be described with reference to FIG. FIG. 2A is a front view of the shower head in the present embodiment, and FIG. 2B is a rear view of the shower head. The shower head 10 of the present invention includes a head portion 11 and a grip portion 12. The head portion 11 and the grip portion 12 are screwed together and fixed integrally. A seal ring member (not shown) is disposed between the head portion 11 and the grip portion 12.

  The grip part 12 has a cylindrical shape having a hollow part. On the outer periphery of the lower portion of the grip portion 12, a screw portion 12a for being screwed into the shower hose is formed. A liquid (for example, tap water) is supplied to the hollow part of the grip part 12 from the shower hose.

  As shown in FIG. 2A, a water sprinkling member 40 is provided on the front side of the head portion 11. A large number of water spray holes 40 a are formed in the water spray member 40. The water spray holes 40 a are arranged radially from the center of the water spray member 40. The head unit 11 sprays tap water as a liquid through the water spray holes 40a. Further, a cover member 42 is fitted to the outer periphery of the water spray member 40.

  As shown in FIG. 2B, a rotation operation member 60 is provided on the back side of the head portion 11. The rotation operation member 60 is formed with an operation projection 60a. By grasping the operation protrusion 60a, the rotation operation member 60 can be rotated in the R direction and the opposite direction (counter R direction) in FIG. As will be described later, the amount of water and the amount of microbubbles can be adjusted by operating the operation protrusion 60a.

Next, the internal configuration of the head unit 11 will be described with reference to FIG.
As shown in FIG. 1, the head unit 11 includes a main body unit 15. The main body 15 includes a cylindrical part in which a supply path 15a is formed, a bowl-shaped bowl-shaped side part 15b, and a bottom part 15c. The hollow supply passage 15 a is formed so as to communicate with the hollow portion of the grip portion 12. Further, the supply path 15a is opened to communicate with the internal space defined by the bowl-shaped side portion 15b and the bottom portion 15c. Therefore, the tap water supplied to the hollow part of the grip part 12 is supplied to the internal space of the main body part 15 through the supply path 15a.

  A plurality of (three in the present embodiment) cylindrical fixing portions 15d for fixing a communication member 20 to be described later are formed on the bottom portion 15c. Each fixing portion 15d protrudes toward the water sprinkling member 40 in the bowl-shaped side portion 15b (hereinafter referred to as the opening side of the bowl-shaped side portion 15b), and a screw groove is cut inside. Further, a through hole 15e is formed at the center of the bottom portion 15c. A plurality of concave portions 15f are formed on the back surface of the bottom portion 15c. The recess 15f is used in conjunction with the rotation operation member 60 to temporarily fix a closing member 50 described later, and a number corresponding to the number of water adjustment stages is formed. In the present embodiment, the amount of water in the shower head 10 is adjusted in five stages, so that five recesses 15 f are formed in the bottom 15 c of the main body 15.

  In the internal space of the bowl-shaped side portion 15b of the main body portion 15, a communication member 20 as a microbubble generating portion is disposed. As shown in FIG. 1, the communication member 20 is fitted to the main body 15 via a seal ring member 30. Further, the communication member 20 has a plurality of fixing holes 20a. Each bolt 31 passes through the fixing hole 20 a and is screwed into the fixing portion 15 d, whereby the communication member 20 is fixed to the main body portion 15.

The communication member 20 includes a disk-shaped main body, a plurality of protrusions 22 protruding toward the opening side of the bowl-shaped side part 15b, and a central protrusion 23 protruding in the center on the opposite side of the protrusions 22. I have.
A through hole 24 is formed in each protrusion 22. This through-hole 24 functions as a long hole that generates microbubbles from tap water. That is, the protrusion 22 is formed with a penetration length for generating microbubbles in the water that has passed through the through hole 24. In the present embodiment, seven through holes 24 are formed. Each through-hole 24 is expanded in diameter toward the opening side of the bowl-shaped side portion 15b. And if tap water passes through this through-hole 24, the gas melt | dissolved in this tap water will appear as a microbubble by pressure change, and will be in the state mixed with tap water.

  As shown in FIG. 3A, a large hole 25 having a large opening area with respect to the through hole 24 is formed in the communication member 20. The large holes 25 are formed in a size that does not generate microbubbles in the water that has passed, and increase the amount of water that passes through the communication member 20 per unit time in order to increase the amount of spray from the shower head 10. As shown in the front view of FIG. 3B and the cross-sectional view of FIG. 3C, a diffusion member 25a is provided on the discharge side of the communication member 20 so as to close the large hole 25. The water discharged from the large hole 25 passes through the communication member 20 while being diffused by the diffusion member 25a. In addition, the water flow area of this large hole 25 is about 20 times the through-hole 24 which discharges microbubbles, for example. Details of the arrangement of the through holes 24 and the large holes 25 will be described later.

  As shown in FIG. 1, a water spray member 40 as a spray member is screwed into the main body portion 15 on the opening side. A seal ring member 41 is disposed between the water spray member 40 and the main body 15 (between the screwing surfaces). The water sprinkling member 40 has a bottomed cylindrical body, and a water sprinkling hole 40a is formed at the bottom.

  In addition, a closing member 50 is disposed on the back side of the communication member 20 (on the side opposite to the opening side of the main body 15). As shown in FIG. 4, the closing member 50 has a plate-like portion 51 and an engaging projection 52 integrally formed. The plate-like portion 51 has a shape in which large and small fan-shaped plate members are arranged to face each other with the engaging protrusion 52 interposed therebetween. As shown in FIG. 1, the plate-like portion 51 is fitted to the central protrusion 23 of the communication member 20. The plate-like portion 51 is formed to have a size that opens and closes the through hole 24 and the large hole 25 by rotation about the central protrusion 23 as a central axis.

  As shown in FIG. 1, the protrusion on the opening side of the spring receiving member 55 is fitted inside the engagement protrusion 52 of the closing member 50. The spring receiving member 55 has annular protrusions on the opening side and the back side. A spring 56 is disposed in a compressed state between the protrusion on the opening side of the spring receiving member 55 and the engagement protrusion 52 of the closing member 50. A bolt 58 is held in a protruding state on the back surface of the spring receiving member 55 from the opening side. A seal ring member 57 is disposed between the spring receiving member 55 and the bolt 58. Further, a seal ring member 59 is disposed between the protrusion on the back side of the spring receiving member 55 and the main body portion 15. The closing member 50 is integrally coupled to the main body portion 15 by being screwed to the rotation operation member 60 by a bolt 58 at the center thereof. Therefore, when the rotation operation member 60 is rotated, the plate-like portion 51 of the closing member 50 rotates integrally while being pressed by the spring 56 toward the communication member 20.

  Further, the rotation operation member 60 is formed with a recess 60 b at a position corresponding to the recess 15 f of the main body 15. A spring 61 and a latch member 62 are accommodated in the recess 60b. The latch member 62 has a spherical shape and is pressed by the spring 61 in the direction of protruding from the recess 60b. When the rotation operation member 60 is rotated, the latch member 62 is fitted into the recess 15f, whereby the rotation of the rotation operation member 60 is temporarily stopped at that position. As a result, the position of the closing member 50 connected to the rotation operation member 60 is temporarily held. When the rotation operation member 60 is rotated so that the latching member 62 is removed from the recess 15 f, the closing member 50 is also rotated according to the rotation of the rotation operation member 60. In the present embodiment, the adjustment unit is configured by the spring receiving member 55, the spring 56, the seal ring members 57 and 59, the bolt 58, and the rotation operation member 60 that are connected to the closing member 50.

  Next, the arrangement of the through holes 24 and the large holes 25 formed in the communication member 20 will be described with reference to FIG. Here, as the through holes 24, through holes 24a, 24b, 24c, 24d, 24e, 24f, and 24g are formed. The through holes 24 a to 24 g correspond to the shape of the fan-shaped plate-like part 51, and the through holes opened at the same time are arranged on the communication member 20 with the engaging protrusions 52 as the center. Is formed. Note that the X-axis extending from the center of the communication member 20 will be described as an angle of 0 degrees.

  As shown to Fig.3 (a), in this embodiment, each through-hole 24 is arrange | positioned on the double concentric circle. Through holes 24a, 24b, and 24c are arranged on the outer circle, and through holes 24d, 24e, 24f, and 24g are arranged on the inner circle.

The through holes 24a on the outer circle are arranged at an angle [−90 degrees].
The through holes 24b and 24c are disposed at an angle [90 ± α degrees (for example, α = 30)].

The through hole 24d is arranged at an angle [−α degrees].
The through hole 24e is arranged at an angle [180-α degrees], and is arranged in point symmetry with the through hole 24d.
The through hole 24f is arranged at an angle [α] and is arranged symmetrically with the through hole 24e.
The through hole 24g is disposed between the through hole 24e and the through hole 24b in the circumferential direction.

  Moreover, the large hole 25 is arrange | positioned so that one side surface may become a position of angle [180+ (alpha) degree]. The large hole 25 is approximately line-symmetric with the through-hole 24d and is disposed at a point-symmetrical position with respect to the through-hole 24f. Furthermore, the large hole 25 is formed on the inner side of the outer circle on which the through holes 24a to 24c are formed.

Next, the operation of adjusting the water amount of the shower head 10 configured as described above will be described with reference to FIGS.
In the present embodiment, it is assumed that the water amount is adjusted in five stages. Here, an example in which the amount of water increases in the order of the first to fifth stages by rotating the rotation operation member 60 will be described. In addition, the shower head 10 of this embodiment is normally used by the water quantity of the 4th step and 5th stage with much water quantity.

(First stage)
First, the first stage of spraying the minimum amount of water will be described.
As shown in FIG. 5A, in this first stage, the plate-like portion 51 of the closing member 50 is stopped at a position where the large hole 25 and the through holes 24d to 24g are closed. In this case, the through holes 24a to 24c are opened. For this reason, the shower head 10 sprays water containing microbubbles in the amount of water that has passed through the through holes 24a to 24c.

(Second stage)
When the rotation operation member 60 is rotated in the R direction from the state of the first stage, the latching member 62 is disengaged from the recess 15f and rotates, and the latching member 62 is fitted in the next recess 15f. In this second stage, as shown in FIG. 5B, the plate-like portion 51 of the closing member 50 stops at a position where the large hole 25 and the through holes 24e and 24f are closed. In this case, the through holes 24a to 24d and 24g are opened. For this reason, the shower head 10 sprays water containing microbubbles in the amount of water that has passed through the through holes 24a to 24d and 24g. In this case, the amount of water is larger than the amount of water in the first stage, as the through holes 24d and 24g are opened.

(3rd stage)
When the rotation operation member 60 is further rotated in the R direction from the state of the second stage, the latching member 62 is disengaged from the recess 15f and rotates, and the latching member 62 is fitted in the next recess 15f. In the third stage, as shown in FIG. 5C, the plate-like portion 51 of the closing member 50 stops at a position where the large hole 25 and the through hole 24f are closed. In this case, the through holes 24a to 24e and 24g are opened. For this reason, the shower head 10 sprays water containing microbubbles in the amount of water that has passed through the through holes 24a to 24e and 24g. In this case, the amount of water is larger than the amount of water in the second stage, as the through hole 24e is opened.

(Fourth stage)
When the rotation operation member 60 is further rotated in the R direction from the state of the third stage, the latching member 62 is removed from the recess 15f and rotated, and the latching member 62 is fitted in the next recess 15f. In this fourth stage, as shown in FIG. 6A, the plate-like portion 51 of the closing member 50 stops at a position where only the large hole 25 is closed. In this case, all the through holes 24a to 24g are opened. For this reason, the shower head 10 sprays water containing microbubbles in the amount of water that has passed through the through holes 24a to 24g. In this case, the amount of water is larger than the amount of water in the third stage, as the through hole 24f is opened.

(5th stage)
When the rotation operation member 60 is further rotated in the R direction from the state of the fourth stage, the latching member 62 is disengaged from the recess 15f and rotated, and the latching member 62 is fitted in the next recess 15f. In this fifth stage, as shown in FIG. 6B, the plate-like portion 51 of the closing member 50 stops at a position where only the through hole 24g is closed. In this case, the through holes 24a to 24f and the large hole 25 are opened. Accordingly, the shower head 10 sprays water containing microbubbles with the maximum amount of water that has passed through the through holes 24 a to 24 f and the large hole 25. In this case, the amount of water is larger than the amount of water in the fourth stage by the amount of opening of the large holes 25, and the maximum discharge amount of the shower head 10.

For this reason, in the said embodiment, the following effects can be acquired.
(1) As for the shower head 10 of this embodiment, the communication member 20 is arrange | positioned at the main-body part 15. FIG. The communication member 20 is provided with a plurality of through holes 24 as microbubble holes and a large hole 25. Thereby, when making the shower head 10 into the maximum amount of water, since water can be supplied to the sprinkling member 40 from both the through-hole 24 and the large hole 25, the amount of water can be increased.

  (2) The communication member 20 of the present embodiment is provided with a protruding portion 22 in which the through hole 24 is formed. Thereby, when tap water passes through the through-hole 24, the gas dissolved in the tap water appears as microbubbles due to the pressure change, and is mixed with the tap water. Therefore, since the area | region in which the through-hole 24 is not formed in the communicating member 20 can be made thin, the water containing a microbubble can be sprayed with the simple structure which aimed at the weight reduction of the shower head 10. FIG.

  (3) In the communication member 20 of the present embodiment, through holes 24 a to 24 c on the outer circle and through holes 24 d to 24 g on the inner circle that can be closed by the closing member 50 are formed. Further, the communication member 20 has a large hole 25 formed inside the through holes 24a to 24c on the outer circle. Therefore, by sequentially closing the inner through holes 24d to 24g and the large hole 25 by the closing member 50, the water amount can be adjusted with a simple configuration.

  (4) In the shower head 10 of the present embodiment, the through holes 24a to 24c are opened in the first stage, the through holes 24a to 24d and 24g are opened in the second stage, and the 24a to 24e and 24g are opened in the third stage. Open. Further, in the fourth stage, all the through holes 24a to 24g are opened and only the large hole 25 is closed. In the fifth stage of the maximum amount of water, the through holes 24a to 24f and the large hole 25 are opened. Thereby, in any stage, since the through-holes opened are dispersed and formed in the whole communication member 20, the bias | inclination of a water flow can be suppressed.

  (5) In the shower head 10 of the present embodiment, the closing member 50 is disposed on the back side of the communication member 20. Thereby, at the time of use of the shower head 10, the amount of water can be adjusted by closing the communication member 20 from the shower hose side, that is, the upstream side of the inflowing water.

(Example of change)
In addition, this embodiment can be modified and embodied as follows.
In the above embodiment, the communication member 20 is provided with seven through holes 24a to 24g for generating microbubbles, and one large hole 25 is provided. The number of through holes 24 that generate microbubbles and the number of large holes 25 are not limited to this. For example, there may be a plurality of large holes 25. In this case, when discharging with the maximum amount of water, the large hole 25 is opened, and when it is desired to increase the content of microbubbles, the large hole 25 is preferably closed. Moreover, although the through-hole 24 was arrange | positioned on the double concentric circle, arrangement | positioning of the through-hole 24 is not limited to this.

  In the above embodiment, the plate-like portion 51 of the closing member 50 has a shape that sequentially closes the through holes 24d to 24g on the inner circle. The shape of the plate-like portion 51 of the closing member 50 is not limited to this. For example, the outer through holes 24a to 24c may be appropriately closed to adjust the amount of water.

  In the above embodiment, the plate-like portion 51 of the closing member 50 is configured to adjust the amount of water by rotation. The method of closing the hole with the closing member 50 is not limited to this. For example, the amount of water may be changed by changing the number of holes to be closed by translating the closing member 50 relative to the communication member 20.

  DESCRIPTION OF SYMBOLS 10 ... Shower head, 11 ... Head part, 12 ... Grip part, 15 ... Main-body part, 20 ... Communication member, 22 ... Projection part, 24, 24a-24g ... Through-hole, 25 ... Large hole, 40 ... Sprinkling member, 40a DESCRIPTION OF SYMBOLS ... Water spray hole, 42 ... Cover member, 50 ... Closure member, 51 ... Plate-shaped part, 52 ... Engagement protrusion, 55 ... Spring receiving member, 56 ... Spring, 60 ... Rotation operation member, 60a ... Operation protrusion, 61 ... Spring, 62 ... Hanging member.

Claims (4)

A main body formed with an inlet for introducing liquid;
A microbubble hole provided inside the main body and allowing a liquid introduced from the inlet side to pass through to generate a microbubble and a large hole having a large opening area with respect to the microbubble hole are formed. Microbubble generation part,
A shower head, comprising: a spraying part having spraying holes for spraying the liquid that has passed through the microbubble generating part to the outside. A closing portion for closing a hole formed in the microbubble generating portion;
The shower head according to claim 1, further comprising an adjusting unit that adjusts an amount of liquid that passes through the microbubble generating unit by adjusting a number of holes closed by the blocking unit.   3. The adjustment unit according to claim 2, wherein the adjustment unit is configured to open a large hole in the case of the maximum discharge amount of the liquid, and to close the large hole if the discharge amount is not the maximum discharge amount. Shower head.   The microbubble hole and the large hole closed by the closing portion are formed on concentric circles having the same rotation center as that of the adjusting portion in the microbubble generating portion. The shower head according to 2 or 3.

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