JP2016098556A - Water discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device capable of switching the discharge mode between a shower discharge mode and a rectifying discharge mode, and capable of discharging air-bubble mixed water with a high air-bubble rate in both modes, and capable of discharging water with a high flow rate in the shower discharge mode.SOLUTION: A water discharge device has a shower flow path 24 formed with a step 24c for forming a guided water flow Wb for guiding only a part of water flow which comes from inlet port 11 to the outer direction from the central part in a radial direction in a shower discharge port 22.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a water discharger that generates and discharges bubble-containing water by causing water to enter a gas-liquid interface between temporarily stored water and air.

  Conventionally, as a water discharging device, a device that mixes bubbles in discharged water and discharges the mixed water (for example, Patent Document 1) has been proposed.

  Patent Document 1 below proposes a water discharge device that can switch between shower water discharge for discharging shower-like water and rectified water discharge for discharging a single stream of water. This water discharger discharges bubbles mixed water from any water discharge port, thereby discharging large water droplets even with a small amount of water while maintaining a flow rate, thereby realizing water saving.

  In the water discharge device disclosed in Patent Document 1, an inflow port (injection hole portion) through which water flows in from a water supply source is provided, and air introduced through the air intake passage into the water flow inflowing from the inflow port is foamed. And mix. Specifically, when water is injected from the inlet, a negative pressure is generated in the internal space, and the air introduced through the air intake passage by this negative pressure is converted into a water flow flowing in from the inlet. It is rolled into small bubbles and mixed into water. The bubble-mixed water mixed with the foamy air is discharged from a shower outlet that discharges a shower-like water flow and a rectifying outlet that discharges the water as a single stream by a switching mechanism. . In such a water discharge device, the shower water discharge port is arranged on the outer peripheral side, the rectification water discharge port is arranged in the central portion inside the shower water discharge port, and the air is separated from the shower water discharge port and the rectification water discharge port side by side with the shower water discharge port. An intake is provided.

JP 2010-167086 A

  In the prior art described in Patent Document 1, in the case of shower water discharge, water injected from a plurality of internal injection holes collides with the upper end of the separation wall surface and is separated into two water flows, so that two shower water discharge flows It is discharged through the road as shower water. When water is injected from the internal injection hole, a negative pressure is generated in the space between the internal injection hole forming member (the member in which the internal injection hole is formed) and the branching part forming member. Due to the negative pressure, outside air is introduced through the air intake passage. The introduced outside air is entrapped in the water stream in which water jetted from the internal jet holes collides with the upper end of the separation wall surface and is mixed into water.

  By adopting such a configuration, although the bubble mixed water can be discharged from the shower outlet formed around the rectifying outlet, the shower outlet can be made to correspond to one internal injection hole. There are two water outlets, and increasing this number greatly may lead to uneven discharge of the bubble-containing water.

  Therefore, it is conceivable to apply as many shower water outlets as possible to form one internal injection hole without providing a separation wall surface by applying a mechanism for discharging air bubbles mixed water from the rectifying water outlet. As an example of a specific configuration, it has a rectification spout, a shower spout disposed on the outer peripheral side of the rectification spout, and an inflow port that is disposed on the circumference and allows water to flow in from a water supply source, A water discharging device including a rotating member that rotates around the center of the circumference, a rectifying channel that extends from the inlet to the rectifying spouting port, and a shower channel that extends from the inlet to the shower outlet can be considered. For example, when using a water discharging apparatus as a faucet in a bathroom, it is required to reduce the size both in the radial direction and in the height direction. In order to respond to the demand for downsizing in the radial direction, the inflow port is shared by the rectified water discharge and the shower water discharge, and by rotating the rotating member, the water supplied from the inflow port is exchanged between the rectification flow channel and the shower flow channel. It is preferable to be configured to flow in either direction.

  When a separation wall surface as described in Patent Document 1 is not provided, a sufficient distance from the inlet to the shower outlet is ensured so that the bubble-mixed water formed in the shower channel is evenly distributed to the shower outlet. There is a need to. However, since there is also a request for downsizing in the height direction as described above, there is a case where a sufficient distance cannot be secured. In order to discharge the air bubbles mixed in from the many shower spouts evenly while shortening the distance from the inflow port to the shower spout, it should be in a balanced position on the area where the shower spout is formed. It is desirable to provide an inlet. For example, it is a preferable example that the inlet is provided in the vicinity of the center of the region where the shower spout is formed.

  However, if the inlet is arranged at an ideal position relative to the shower outlet (near the center in the radial direction of the area where the shower outlet is formed), the inlet is naturally provided at a position away from the rectifying outlet. Will be. When the inlet is arranged on the outer peripheral side of the apparatus in this way, the distance from the inlet to the rectifying water spouting port provided at the center is increased. Therefore, this time, there is a concern that the flow rate of water from the inlet to the rectifying spouting port decreases until it enters the gas-liquid interface on the rectifying spouting port, and as a result, the amount of bubbles mixed in the rectifying spouting port may decrease. is there. Therefore, it is preferable to dispose the inlet at a position shifted toward the rectifying spouting port while considering a decrease in the amount of air bubbles mixed in the rectifying spouting water while being formed relatively on the shower water discharging side.

  In this way, when the opening of the inflow port is not provided immediately above the center of the region where the shower spout is formed and is arranged at a position eccentric to the one side from the radial center of the shower spout, Depending on the position, there will be a difference in water flow velocity. Specifically, the flow rate from the shower water outlet on one side is fast, and the flow rate from the shower water outlet on the other side is slow. In addition, if a difference in flow velocity occurs between one side and the other side of the shower water discharge, a slow water flow sticks to a fast water flow, and the water discharged from the shower water outlet becomes a single water flow, forming a shower-like water flow. It will not be done.

  The present invention has been made in view of such problems, and its purpose is to switch between shower water discharge and rectified water discharge, and in a water discharge apparatus capable of discharging bubble-containing water in any water discharge, shower water discharge and An object of the present invention is to provide a water discharge device that can discharge water without any unevenness in any water discharge of rectified water discharge, with a high amount of mixed bubbles and a high flow rate of shower water discharge.

  In order to solve the above-described problem, a water discharge device according to the present invention is a water discharge device that generates and discharges bubble-containing water by causing water to enter a gas-liquid interface between temporarily stored water and air. , A first member having an inflow port for injecting water from the water supply source and injecting water downstream, a rectifier outlet for discharging the bubble-mixed water as a single stream, and discharging the bubble-mixed water in the form of a shower A second member having a shower water outlet, a rectifying flow path from the inlet side to the rectifying water outlet, and a shower flow path from the inlet side to the shower water outlet, and the rectifying water outlet And the shower spout are arranged in a coaxial circle, and rotate either one of the first member and the second member so that the first member and the second member are relative to each other. By changing the positional relationship, water is supplied to the rectifying channel. Then, it is possible to switch between a first state in which air is mixed into the water and a second state in which water is allowed to flow into the shower channel and air is mixed into the water, and the inlet is in the second state, It is arranged at a position eccentric to one side from the radial center of the shower spout, and in the shower channel, only a part of the water flow flowing in from the inflow port is arranged in the radial direction of the shower spout. Guide water flow forming means for forming a guide water flow toward the other side of the center is formed.

  According to the present invention, the inflow port is arranged at a position eccentric to one side from the radial center of the shower spout, and the guide water flow forming means is formed in the shower channel, so that the inflow from the inflow port The guide water flow can be formed with the water flow directed to the other side, and the inlet is formed on the other side even when the inlet is arranged at a position eccentric to one side from the radial center of the shower spout. Bubbled water can be supplied toward the shower outlet. Since the guide water flow forming means directs only a part of the water flow flowing in from the inflow port to the other side, it is possible to reduce unevenness in the speed difference of the water flow toward the shower water discharge port, and uniform water discharge becomes possible.

  Further, in the water discharge device according to the present invention, the guide water flow forming means forms the guide water flow by colliding only a part of the water flow flowing in from the inflow port, and guides it directly below without colliding the rest of the water flow. It is also preferable to use a diverted water stream.

  The guide water flow forming means can reduce the speed difference from the guide water flow by guiding a part of the water flow flowing in from the inlet directly as it is, and can evenly distribute the water flow to the shower outlet. it can.

  Moreover, in the water discharging apparatus which concerns on this invention, it is also preferable that the said guide water flow formation means merges the said direction change water flow with the said guide water flow.

  By merging the direction change water flow with the guide water flow, the velocity component toward the other side of the guide water flow can be reduced, and the flow velocity can be evenly distributed at the shower spout.

  Moreover, in the water discharging apparatus which concerns on this invention, it is also preferable that the flow volume of the said guide water flow is larger than the said direction change water flow volume.

  As described above, the combined use of the guide water flow toward the other side and the direction changing water flow that reduces the linear component of the guide water flow enables uniform supply of bubble-mixed water to many shower water outlets. Since the direction change water flow is only for correcting the deflection of the guide water flow, the flow rate of the guide water flow is made larger than that of the direction change water flow to supply the bubble mixed water in a well-balanced manner to many shower outlets. be able to.

  Moreover, in the water discharging apparatus which concerns on this invention, it is also preferable not to make a part of said guide water flow join the said direction change water flow.

  A part of the guide water flow is guided toward the other side of the shower spout without being influenced by the direction change water flow, so that the water flow can be more evenly distributed.

  According to the present invention, it is possible to switch between shower water discharge and rectified water discharge, and in the water discharge device capable of discharging air bubble mixed water in any water discharge, the amount of air bubbles mixed is high in both water discharged from shower water and rectified water discharge. It is possible to provide a water discharger that can discharge water with high flow rate and high uniformity of shower water discharge.

It is a perspective view showing the faucet unit which attached the spout cap concerning the embodiment of the present invention. It is a schematic diagram which shows the relationship between the inflow port of the spout cap shown in FIG. 1, a shower flow path, and a rectification flow path. It is a schematic diagram which shows the outline of an effect | action of the spout cap shown in FIG. It is sectional drawing which shows the structure of the shower flow path of the spout cap shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

    An outline of a water discharge cap (a water discharge device) 1 according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an example in which the spout cap 1 is used in a bathroom vanity S as a component of the faucet device FC. FIG. 2 is a cross-sectional view of the spout cap 1. FIG. 3 is a schematic diagram showing the relationship between the inlet of the spout cap 1 and the flow path for shower water discharge and rectified water discharge.

  The water discharge cap 1 is a component used for the water discharge port portion of the faucet device FC. The faucet device FC is attached to the washbasin of the vanity table S as shown in FIG. 1 as an example. The faucet device FC is formed in a long and narrow cylindrical shape with stainless steel or the like, and discharges water toward the bowl portion B for storing water or receiving water. The faucet device FC is attached to the periphery of the bowl portion and connected to a water pipe that is a water supply source.

  As shown in FIG. 1, the spout cap 1 is attached to the tip of the faucet device FC so as to cover the exterior of the tip. The water discharge cap 1 is configured to discharge water supplied from a water pipe as shower water discharged from a plurality of thin water streams or as rectified water discharged from a single water stream. Both the shower water discharge and the rectified water discharge are bubble mixed water formed by inhaling air from the outside and mixing foamed air. Moreover, the spout cap 1 is comprised so that shower water discharge and rectified water discharge can be switched by rotating a front-end | tip part.

  Next, a specific configuration of the spout cap 1 and an outline of its operation will be described with reference to FIGS. 2 and 3. The spout cap 1 has a cylindrical shape as a whole and includes a first tube portion 10 (rotating member) and a second tube portion 20. By rotating the 2nd cylinder part 20 with respect to the 1st cylinder part 10, as above-mentioned, it is comprised so that switching between shower water discharge and rectification water discharge is possible.

  The state shown in FIG. 2A is a first state (hereinafter, referred to as “rectification state”) in which water is allowed to flow through the rectification channel and air from the shower channel is mixed into the rectification channel. The state shown in FIG. 2C is a second state (hereinafter referred to as “shower state”) in which water flows through the shower channel and air from the rectifying channel is mixed into the water. The state shown in FIG. 2 (B) is a state in the middle of switching between the state shown in FIG. 2 (A) and the state shown in FIG. 2 (C).

  FIGS. 2A to 2C are views of the first tube portion 10 as viewed from the bottom side (the second tube portion 20 side) of the first tube portion 10. What is indicated by a broken line is the second cylindrical portion 20, which is shown by projecting the position of the second cylindrical portion 20 onto the first cylindrical portion 10. For convenience of explanation, FIG. 2 shows a state in which the first cylinder part 10 is rotated without moving the second cylinder part 20, but the second cylinder part 20 is rotated with respect to the first cylinder part 10. It is common to make it. As described above, the spout cap 1 has an exterior covered with the tubular faucet device FC, and FIGS. 2 and 3 are diagrams showing internal components excluding the exterior.

  As shown in FIG. 2, the first tube portion 10 includes a plurality of inlets 11 (eight here at regular intervals) through which water flows from a water pipe that is a supply source. The inflow port 11 is provided along the outer periphery of the first cylindrical portion 10, and is formed at a position communicating with a shower channel 24 described later in the shower state shown in FIG.

  The second cylinder part 20 includes a rectifying spout 21 that discharges the bubble-containing water as a single stream, a shower fountain 22 that is disposed on the outer periphery of the rectifying spout 21 and discharges the bubble-containing water in a shower shape, Is provided. In addition, the second cylindrical portion 20 includes a rectifying channel 23 that extends from the inlet 11 to the rectifying spout 21, and a shower channel 24 that extends from the inlet 11 to the shower outlet 22.

  The rectifying water discharge port 21 is formed in the central portion of the second cylindrical portion 20, and a rectifying network 21 a having a lattice shape and having many fine holes is disposed. The water discharged from the rectifying water discharge port 21 has a gentle flow in which turbulence is suppressed by passing through the holes of the rectifying network 21a and scattering to the bowl portion B and the like is suppressed. Moreover, by giving flow-path resistance to the water which flows into the rectification spout 21 by the rectification network 21a, the water discharged to the rectification flow-path 23 mentioned later is stored temporarily, and the water and the water which were stored are stored. A gas-liquid interface (described later) is formed.

  The shower water discharge port 22 is composed of a plurality of minute holes formed at the tip of a shower channel 24 described later, and discharges water flowing through the shower channel 24 as shower water discharge. The shower spout 22 also provides flow resistance to the water flowing through the shower flow path 24, thereby imparting a flow velocity to the discharged water and temporarily storing the discharged water. And an air-liquid interface (described later) with air.

  The rectifying flow path 23 is a flow path that guides water from the inlet 11 side formed on the outer peripheral side toward the rectifying water outlet 21 formed on the center side, and the flow that forms a taper shape toward the rectifying water outlet 21. It has a road wall 23a. The flow path wall 23a may basically be formed in a tapered shape toward the rectifying water discharge port 21, but in the present embodiment, a constricted portion 23b having a minimum diameter is provided on the upstream side where the rectifying network 21a is provided. The diameter of the downstream side of the constricted portion 23b is increased to reach the rectifying water discharge port 21.

  The rectifying channel 23 is provided with a guide portion 23c that protrudes from the channel wall 23a and divides the rectifying channel 23 into a plurality of partition channels 23d on the circumference. The guide portion 23c is provided so that a plurality (eight in this case) of cylindrical members are pierced in the vertical direction with respect to the tapered flow path wall 23a on the circumference. Therefore, the guide part 23c is formed so that the rectifying water discharge port 21 side is thinner than the inflow port 11 side as a whole. In the present embodiment, in particular, the guide portion 23c is gradually narrowed on the downstream side of the first region 23c1 formed with a constant width from the inlet 11 side toward the rectifying water discharge port 21 and the first region 23c1. And a second region 23c2.

  In addition, the partition channel 23d partitioned by the guide portion 23c is formed with a certain width on the upstream side along the first region 23c1 and the second region 23c2, and then gradually expands on the downstream side. ing. And the division flow path 23d merges as one flow path in the upstream of the constriction part 23b.

  As described above, the partition channel 23d partitioned by the guide portion 23c is configured such that the flow of water from the inlet 11 toward the rectifying water discharge port 21 does not meander through the channel wall 23a, and other partition channels It regulates not to merge with the water flowing through 23d. Ideally, the guide portion 23c regulates the water so that the water advances linearly toward the conical center direction of the tapered flow path wall 23a, in other words, the central axis of the gas-liquid interface described later. It regulates at the shortest distance toward.

  The shower channel 24 is a channel that guides water from the inlet 11 formed on the inner peripheral side toward the shower outlet 22. Specifically, the shower flow path 24 is disposed outside the rectification flow path 23 with the flow path wall 23 a interposed therebetween in the second cylindrical portion 20. The shower channel 24 is provided with a plurality of cylindrical vertical holes 24a on the circumference on the upstream side, and on the downstream side, the lower portion of the second cylinder portion 20 is circumferentially penetrated in a donut shape, The retention part 24b which stores water is provided.

  A plurality of vertical holes 24a constituting the shower channel 24 are provided on the outer peripheral side of the second cylindrical portion 20 so as to match the position on the outer periphery of the inlet 11 so that the water from the inlet 11 flows down directly in the direction of gravity. (Here, eight are provided at equal intervals). Note that the wall surface of the vertical hole 24 a protrudes into the rectifying channel 23 and functions as a guide portion 23 c in the rectifying channel 23.

  On the other hand, the retention portion 24b, which is another component of the shower channel 24, protrudes inwardly of the second cylindrical portion 20 at a portion where the channel wall 23a of the rectifying channel 23 has a tapered slope, and has a volume. It is spreading. This portion protrudes toward the rectifying flow path 23, and a constricted portion 23b is formed on the rectifying flow path 23 side with a flow path wall 23a therebetween.

  Further, the staying part 24b has an annular stepped part 24c (guide water flow forming means) at a part where the downstream flow path wall 23a extends toward the rectifying water discharge port 21 provided with the rectifying network 21a. The stepped portion 24c is arranged so that at least a part thereof overlaps the cross section of the vertical hole 24a. Therefore, when the second tube portion 20 of the water discharge cap 1 is rotated to switch from the rectifying state to the shower state, the water flowing in from the vertical hole 24a of the shower channel 24 first flows directly below, It collides with the part 24c. In the present embodiment, it is desirable that all the water flowing from the vertical hole 24a collide with the stepped portion 24c. In the present embodiment, the stepped portion 24c and the shower spout 22 are formed such that the stepped portion 24c is formed of the same member as the shower spout 22 so as to be formed as a part of the second tube portion 20. Are preferably formed in a fixed manner.

  An outline of the action of the spout cap 1 configured as described above will be described with reference to FIG. FIG. 3A is a diagram showing a water discharge state in which water W is allowed to flow through the rectification flow path 23 and air Air from the shower flow path 24 is mixed into the water W as the rectification state that is the first state. FIG. 3B is a diagram showing a water discharge state in which water W is allowed to flow through the shower channel 24 and air Air from the rectifying channel 23 is mixed into the water W as the shower state which is the second state. .

  As shown in FIG. 3A, in the rectifying state, when water W is supplied from a plurality of inflow ports 11 formed on the outer periphery of the first cylindrical portion 10, the water W flows down in the direction of gravity, It flows into the rectifying channel 23 and collides with the channel wall 23a. The water W splashes from the flow path wall 23a or flows down through the flow path wall 23a and is guided to the rectifying water discharge port 21 side. In addition, the relationship between the inflow port 11 and the 2nd cylinder part 20 in this rectification | straightening state is a state shown to FIG. 2 (A).

  At this time, the shower spout 22 functions as an air inlet, and the shower channel 24 functions as an air channel. That is, as shown in FIG. 3A, when water is ejected from the inlet 11 toward the rectifying channel 23, a negative pressure is generated in the shower channel 24, and the shower stream is discharged from the shower outlet 22. Air Air flows toward the rectifying flow path 23 through the path 24. The air Air passes from the staying part 24b through the vertical hole 24a, flows into the rectifying flow path 23, is entrained in the flow of the water W, and is made into a foam.

  A gas-liquid interface Ia is formed in the rectifying water discharge port 21 by temporarily retaining water on the rectifying network 21a. The water W enters the gas-liquid interface Ia, and the air Air made into a foam is mixed therein, thereby generating bubble-containing water Bw. The bubble mixed water Bw passes through the rectifying network 21a and is sequentially discharged from the rectifying water discharge port 21.

  On the other hand, as shown in FIG. 3B, in the shower state, when water W is supplied from a plurality of inflow ports 11 formed on the outer periphery of the first tube portion 10, the water W flows down in the direction of gravity. Then, it flows into the vertical hole 24a of the shower channel 24 and is led to the staying portion 24b directly below. In addition, the relationship between the inflow port 11 and the 2nd cylinder part 20 in this rectification | straightening state is a state shown in FIG.2 (C).

  At this time, the rectification water discharge port 21 functions as an air introduction port, and the rectification flow channel 23 functions as an air flow channel. That is, as shown in FIG. 3A, when water is ejected from the inflow port 11 toward the rectifying channel 23, a negative pressure is generated on the rectifying channel 23 side, and the rectified water is discharged from the rectifying water discharge port 21. Air Air flows into the rectifying channel 23 through the channel 23. The air Air passes through the rectifying channel 23 from the rectifying network 21a, flows into the vertical hole 24a of the shower channel 24, and is entrained in the flow of the water W to be foamed.

  In the shower channel 24, the gas-liquid interface Ib is formed by temporarily retaining water in the retention part 24 b due to the channel resistance of the shower outlet 22. When the water W enters the gas-liquid interface Ib and the air Air made into a foam is mixed therein, the bubble mixed water Bw is generated. The bubble mixed water Bw passes through the shower spout 22 and is discharged to the outside.

  In the spout cap 1 of this embodiment, the 2nd cylinder part 20 is rotated with respect to the 1st cylinder part 10 in the rectification | straightening state which is the above 1st states, and the shower state which is the 2nd state. Thus, the state shown in FIG. 2 (A) is changed to the state shown in FIG. 2 (C).

  Next, the flow of water in the shower channel 24 will be described with reference to FIG. FIG. 4 is a diagram schematically showing a cross section of the shower channel 24. 4A, 4B, 4C, and 4D show the state of the water W flowing downward from the inflow port 11 through the vertical hole 24a in time series after the water W is jetted. ing. If injection of water W will be in a steady state, the state of (D) of Drawing 4 will continue.

  When the water W injected from the inflow port 11 enters the gas-liquid interface Ib, an outer water flow Wa and an inner water flow Wb are formed. The relationship between the inflow port 11 and the step portion 24c in the present embodiment is such that the water flow Wa does not collide with the step portion 24c and the water flow Wb collides with the step portion 24c. Here, the water W flowing in from the inflow port 11 has a flow rate in the range of 3.7 to 14.7 m / s (a flow rate at which air mixing is established at a flow rate of 2 L / min used in a general water discharge device. In the range), the gas diffuses at a spread angle of 5 degrees after entering the gas-liquid interface Ib (when a water flow having a flow rate of 50% or more with respect to the flow velocity before entering the gas-liquid interface is regarded as a diffusion flow). Therefore, the step portion 24c (guide water flow forming means) is formed by a region where the inflow port 11 is projected in the injection direction and a region diffused at a spread angle of 5 degrees after entering the gas-liquid interface Ib. What is necessary is just to be arrange | positioned with respect to the inflow port 11 so that only a part of water flow may collide.

  Since the water flow Wb collides with the stepped portion 24c and is changed in the inner direction to the shower water discharge port 22 at a position farther than the vertical hole 24a, it functions as a guide water flow.

  Since the water flow Wa is injected so as not to collide with the stepped portion 24c, it joins the water flow Wb, which is a guide water flow, from above to below. Accordingly, the water flow Wb is directed downward by the action of the water flow Wc that joins from above, in addition to the reduction of the speed difference between the parts by reducing the linear component due to the action of the water flow Wa that functions as the direction change water flow. Since the force is applied, the water flow can be more evenly distributed.

  Thereby, the vertical hole 24a which is an inflow port is not formed directly above the shower spout 22, and is a small distance from the shower spout 22 to the inside, and the distance from the vertical hole 24a to the shower spout 22 is short. Even if it is a simple water discharging apparatus, a water flow can be disperse | distributed uniformly with respect to the shower spout 22, and the flow velocity can be distributed uniformly in the shower spout 22.

  Further, the flow rate of the water flow Wb that is the guide water flow is configured to be larger than the flow rate of the water flow Wa that is the direction change water flow.

  In the present embodiment, a part of the water flow Wb that is the guide water flow is configured not to merge with the water flow Wa that is the direction change water flow. Since the direction of the water flow Wb hits the planar step portion 24c and is changed, the water flow Wb spreads in a direction penetrating the paper surface of FIG. On the other hand, the water stream Wa travels straight without colliding anywhere, and therefore flows in a state narrower than the water stream Wb. Accordingly, a part of the water flow Wb is guided toward the outside of the shower spout 22 without being influenced by the water flow Wa, so that the water flow can be more evenly distributed.

In the above-described embodiment, the configuration in which the shower water outlet 22 is disposed on the outside and the rectifying water outlet 21 is disposed on the inner side has been described, but the configuration of the water outlet cap 1 according to the present invention is not limited thereto.
For example, the shower water outlet 22 may be arranged on the inner side and the rectifying water outlet 21 may be arranged on the outer side. Furthermore, in the above-described embodiment, the configuration in which air is sucked from the shower water outlet 22 and the rectifying water outlet 21 has been described, but the present invention is not limited to this. The spout cap 1 according to the present invention may be configured to suck air from other places.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the elements included in each of the specific examples described above and their arrangement, materials, conditions, shapes, and the like are not limited to those illustrated, and can be changed as appropriate. Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

1: Spout cap 10: Cylinder 11: Inlet 20: Cylinder 21: Rectifier spout 21a: Rectifier network 22: Shower spout 23: Rectifier channel 23a: Channel wall 23b: Constricted portion 23c: Guide portion 23c1 : 1st area | region 23c2: 2nd area | region 23d: Partition flow path 24: Shower flow path 24a: Vertical hole 24b: Retention part 24c: Step part 24d: Elastic member 30: Tube part B: Bowl part Bw: Bubble mixing water FC: Water Plug device Ia: Gas-liquid interface Ib: Gas-liquid interface Ix: Gas-liquid interface S: Vanity W: Water W1, W2, WG, WG1: Water flow Wr: Residual water

Claims (5)

A water discharge device that generates and discharges bubble-containing water by causing water to enter a gas-liquid interface between temporarily stored water and air,
A first member including an inflow port for injecting water from a water supply source and injecting water downstream;
A rectifying spout that discharges bubble-containing water as a single united water flow, a shower fountain that discharges bubble-containing water in a shower shape, a rectifying channel that extends from the inlet side to the rectifying outlet, and the inlet side And a second member comprising a shower channel extending from the shower outlet to the shower outlet,
The rectifying spout and the shower spout are arranged in a coaxial circle,
By rotating one of the first member and the second member to change the relative positional relationship between the first member and the second member, water is caused to flow through the rectifying flow path, and the water Switching between a first state in which air is mixed in and a second state in which water is allowed to flow through the shower channel and air is mixed into the water.
In the second state, the inflow port is arranged at a position eccentric to one side from the radial center of the shower spout,
The shower channel is formed with guide water flow forming means in which only a part of the water flow flowing in from the inflow port is guided toward the other side from the radial center of the shower water discharge port. .   The guide water flow forming means forms the guide water flow by colliding only a part of the water flow flowing in from the inflow port, and directs it directly without colliding the rest of the water flow to form a direction change water flow. 1 water discharger.   The water discharge device according to claim 1 or 2, wherein the guide water flow forming unit merges the direction change water flow with the guide water flow.   The water discharge device according to any one of claims 1 to 3, wherein a flow rate of the guide water flow is greater than a flow rate of the direction change water flow.   The water discharge device according to claim 3, wherein a part of the guide water flow is not merged with the direction change water flow.

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