JP2017155410A - Water discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress water splash of a water discharged part by shower water discharge, even in the case where air-bubble entrained water is discharged from a shower water discharge port.SOLUTION: A water discharge device generates air-bubble entrained water by rushing water into a gas-liquid interface of water stored temporarily and the air and discharges it, and the water discharge device includes: an inflow port where the water flows in; a shower water discharge port arranged on a peripheral edge part and for discharging the air-bubble entrained water in a shower-like manner; and a shower flow passage for communicating the inflow port and the shower water discharge port. In the inflow port, the flow passage is throttled more than the shower flow passage. In the shower flow passage, a deflection flow passage is formed for bypassing a blocking part by providing the blocking part for blocking the flow of the water flowing from the upstream of the shower flow passage.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a water discharge device capable of discharging air-bubble mixed water.

2. Description of the Related Art Conventionally, there has been known a water discharging device that mixes bubbles into discharged water and discharges the mixed water (for example, see Patent Document 1).
The water discharge device in Patent Document 1 is an inflow port that allows water to flow in from a water supply source, a rectifying water discharge port that discharges bubble-mixed water as a single united water flow, and a bubble-mixed water that is disposed on the outer periphery of the rectifier spray port. And a shower spout for discharging in a shape. In addition, the water discharge device includes a rectifying flow path extending from the inlet to the rectifying water discharge opening, and a shower flow path extending from the inlet to the shower discharge opening.

  In such a conventional water discharge device, water is injected from the inlet functioning as an orifice into the rectifying channel or the shower channel, thereby generating a negative pressure in the internal space, and this negative pressure causes the rectifying channel to flow. Alternatively, air is introduced into the shower channel. Then, the introduced air is entrained in a water flow that flows from the inlet to the rectifying channel or the shower channel, is made into a small foam, and is mixed into the water. At this time, the higher the flow rate of water sprayed from the inlet to the rectifying channel or the shower channel, the higher the negative pressure generated in the internal space, and more air is introduced. As a result, the amount of air mixed into the water flow flowing into the rectifying channel or the shower channel increases.

Japanese Patent Laid-Open No. 2015-194038

  However, in the above-described conventional water discharge device, when bubbles mixed water is discharged, bubbles are mixed into the discharged water, and therefore, compared with the case where bubble mixed water is not discharged, the water is injected from the inlet to the rectifying flow path or the shower flow path. The water flow rate must be increased. Therefore, when water flows to the shower spout at a high flow rate jetted from the inflow port, the flow rate unevenness is caused by the arrangement position such as the circumferential position of the plurality of shower spouts arranged annularly on the outer periphery of the rectifying spout. It will generate | occur | produce and the water discharge from a shower spout will become unstable. As a result, there is a concern that water splashing may occur when water is discharged from the shower outlet to a water discharge portion such as a bowl portion.

  The present invention has been made to solve the above-described problem, and provides a water discharge device that can suppress water splashing of a discharged water portion due to shower water discharge even when air bubble mixed water is discharged from a shower water discharge port. The purpose is to do.

  In order to achieve the above object, according to the water discharger according to one aspect of the present invention, air is mixed into the gas-liquid interface between temporarily stored water and air to generate and discharge the bubble-containing water. A water discharge device, comprising: an inflow port through which water flows in; a shower water discharge port that is disposed at a peripheral portion and discharges bubble-containing water in a shower shape; and a shower channel that communicates the inflow port and the shower water discharge port. The inflow port is narrower than the shower channel, and the shower channel is provided with a shielding unit that blocks the flow of water flowing upstream from the shower channel, thereby bypassing the shielding unit. A flow path is formed.

  According to this configuration, the shower channel is provided with a deflection channel that bypasses the shielding unit by providing a shielding unit that blocks the flow of water flowing from the upstream of the shower channel. Thereby, the speed of the water which flows in the shower channel can be decelerated, and the flow velocity unevenness in the shower spout arranged at the peripheral portion can be suppressed. Therefore, even when air bubble mixed water is discharged from the shower spout, it is possible to suppress water splashing of the discharged portion due to the shower spout.

  Moreover, in the water discharging apparatus which concerns on 1 aspect of this invention, Preferably, a shielding part is the wall protruded from the wall surface which forms the shower flow path.

  According to this configuration, since the shielding portion is a wall protruding from the wall surface forming the shower channel, the speed of water flowing in the shower channel can be reduced with a simple structure. Therefore, even when the bubble-containing water is discharged from the shower spout while simplifying the structure, it is possible to suppress water splashing of the discharged portion due to the shower spout.

  Moreover, in the water discharging apparatus which concerns on 1 aspect of this invention, Preferably, it is further provided with the water sprinkling member which has a shower flow path, and a shower flow path is formed over the perimeter of a water sprinkling member while a downstream end is connected to a shower spout. A downstream shower channel, and a plurality of linear upstream shower channels that communicate the inlet and the downstream shower channel, and the shielding portion includes all of the water spray member in the downstream shower channel. It is formed over the circumference.

  According to this configuration, since the shielding portion is formed over the entire circumference of the water spray member, when the water is discharged from the plurality of upstream shower channels and collides with the shielding portion, water also flows in the circumferential direction of the water spray member. Thereby, the water discharged | emitted from the several upstream shower flow path collides with each other, and the flow velocity of water can further be decelerated. Therefore, even when bubble-containing water is discharged from the shower spout, it is possible to further suppress water splashing of the discharged water portion due to the shower spout.

  Moreover, in the water discharging apparatus which concerns on 1 aspect of this invention, Preferably, the flow-path cross-sectional area of a deflection | deviation flow path is the same as or more than the flow-path cross-sectional area of an inflow port.

  According to this configuration, the flow path cross-sectional area of the deflection flow path is the same as or larger than the flow path cross-sectional area of the inflow port, so that the internal pressure of the water discharge device does not increase, and the deflection flow path The water flow can be smooth. Thereby, the flow of the water which flows through a shower channel can be made smooth, decelerating the speed of the water which flows through a shower channel. Therefore, the water discharged from the shower water outlet can be further stabilized.

  Moreover, in the water discharging apparatus which concerns on 1 aspect of this invention, Preferably, the space which the water which bypassed the shielding part flows into the back side of a shielding part, and communicated with the shower water discharge port is formed.

  According to this structure, since the space which the water which detoured the shielding part flows is formed in the back side of the shielding part, the water which detoured the shielding part flows into this space, and flows into a shower spout. Thereby, since the flow rate of the water which passed the shielding part is decelerated, the water which flows toward the shower outlet from the shielding part flows into the shower outlet more uniformly. Therefore, even when bubble-containing water is discharged from the shower spout, it is possible to further suppress water splashing of the discharged water portion due to the shower spout.

  Moreover, in the water discharging apparatus which concerns on 1 aspect of this invention, Preferably, a shielding part has a collision surface perpendicular | vertical with respect to the flow direction of the water which collides with a shielding part.

  According to this configuration, since the shielding portion has a collision surface perpendicular to the flow of water that collides with the shielding portion, the shielding portion extends from the inner peripheral side to the outer peripheral side with respect to the flow of the shower channel. Compared with the case where it forms in the taper shape which falls, the flow velocity can be decelerated more. Moreover, compared with the case where the shielding part is formed in a mortar shape that rises from the inner peripheral side to the outer peripheral side with respect to the flow direction of the shower channel, the shielding part is suppressed while suppressing an increase in the internal pressure in the water discharging device. A mold for molding can be simplified. Therefore, productivity can be improved while decelerating the flow velocity in the shower channel and suppressing the internal pressure in the water discharging device from increasing more than necessary.

  ADVANTAGE OF THE INVENTION According to this invention, in the water discharging apparatus which discharges bubble mixed water from a shower water discharge port, the water splash of the to-be-discharged part by shower water discharge can be suppressed.

It is a perspective view of the vanity table to which the water discharging apparatus which concerns on one Embodiment of this invention was attached. It is side surface sectional drawing of the water discharging apparatus which concerns on one Embodiment of this invention. It is side surface sectional drawing of the water discharging apparatus which concerns on one Embodiment of this invention. FIG. 4 is an enlarged view of a region A in FIG. 3. It is a schematic perspective sectional view of a watering member according to an embodiment of the present invention. It is explanatory drawing which shows switching of the shower water discharge and rectified water discharge which concern on one Embodiment of this invention. It is explanatory drawing which represented typically the flow of the water in the water discharging apparatus which concerns on one Embodiment of this invention. It is an enlarged view of the area | region B of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

<Configuration of water discharge device>
First, with reference to FIGS. 1-5, the water discharging apparatus which concerns on one Embodiment of this invention is demonstrated. In the following description, the directions shown in the figure are used.

  FIG. 1 is a perspective view of a bathroom vanity to which a water discharge device according to an embodiment of the present invention is attached. FIG. 2 is a side cross-sectional view of the water discharger according to one embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of the water discharge device according to one embodiment of the present invention. FIG. 4 is an enlarged view of region A in FIG. FIG. 5 is a schematic perspective cross-sectional view of a watering member according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the water discharge device 1 in the present embodiment is attached to the rear wall surface 4 of the vanity table 2. The rear wall surface 4 to which the water discharge device 1 is attached is provided with a handle 6 for controlling the temperature of water discharged from the water discharge device 1 and the water discharged from the water discharge device 1. A bowl portion 8 (water discharge portion) that receives water discharged from the water discharge device 1 is provided below the water discharge device 1.

  The water discharge device 1 includes a spout 9 having a spout main body portion 10 extending from the rear wall surface 4 toward the front side and a water discharge portion 20 attached to the tip of the spout main body portion 10. The spout 9 extends forward from the rear wall surface 4. The spout 9 is configured to be able to be drawn forward from the rear wall surface 4 with respect to the rear wall surface 4. A flexible hose 16 described later is connected to the spout 9.

The water discharge unit 20 is provided with a rectifying water discharge port 30 that discharges water as a stream of water and a shower water discharge port 40 that discharges water in a shower shape. The water discharged from the rectifying water discharge port 30 (rectified water discharge) and the water discharged from the shower water discharge port 40 (shower water discharge) are both air bubble mixed water generated by mixing air sucked from the outside and made into foam. To be discharged.
Furthermore, although mentioned later in detail, the water discharging apparatus 1 rotates the water discharging part 20 by the predetermined angle to the circumferential direction of the axis | shaft C which is the center axis | shaft of the rectifying water discharging opening 30 with respect to the spout main body part 10, and a rectification water discharging opening The water discharged from 30 (rectified water discharged) and the water discharged from the shower water outlet 40 (shower water discharged) can be switched.

  The spout body 10 includes a first outer case 12 that is an exterior, and a water guide 14 that is provided inside the first outer case 12 and guides water from a water supply source (not shown) to the water discharger 20. A flexible hose 16 connected to a water supply source (not shown) is connected to the upstream end of the water guide section 14. The flexible hose 16 can be pulled out from the rear wall surface 4 by a predetermined length, and is pulled out together with the spout 9 (the spout body 10 and the water discharger 20). Therefore, for example, the user can use the water discharge device 1 in a state where the spout 9 (the spout main body portion 10 and the water discharge portion 20) is pulled out.

  In addition, an inflow port 18 through which water from the water supply source flows into the flow path of the water discharge unit 20 is provided at the downstream end of the water guide unit 14. The inlet 18 is a so-called throttle channel, and the channel cross-sectional area of the inlet 18 is formed smaller than the channel cross-sectional area at the downstream end of the water guide section 14. In addition, the inflow port 18 has a channel cross-sectional area smaller than a shower channel 42 described later. In the present embodiment, six inflow ports 18 are provided at substantially equal intervals along the circumferential direction of the axis C. When the water discharger 20 is rotated relative to the spout body 10 around the axis C, the shower water discharge state and the rectified water discharge state are switched. In the state of shower water discharge, the inlet 18 is in a positional relationship facing an upstream opening of an upstream shower channel 42a described later, and the inlet 18 and the shower channel 42 communicate with each other. In the state of rectified water discharge, the inlet 18 is in a positional relationship facing the upstream opening of a rectifying communication path (not shown) communicating with the rectifying flow path 32, and the inlet 18 and the rectifying flow path 32 communicate with each other.

  The water discharger 20 includes a second outer case 22 that is an exterior, a water sprinkling member 24 provided inside the second outer case 22, and a cylindrical tube member provided between the second outer case 22 and the water sprinkling member 24. 26. Further, the water discharger 20 is pivotally supported by the fixing screw 27 so as to be rotatable with respect to the spout body 10.

  Specifically, as shown in FIG. 3, a cylindrical projection 10a is provided at the center of the tip of the spout body 10, and a fixing screw 27 extending in the direction along the axis C is provided at the center of the tip of the projection 10a. A fixing hole 10b for fixing is provided. A step portion 10c is provided on the outer peripheral side surface of the protrusion 10a to reduce the diameter of the portion closer to the distal end of the protrusion 10a than the portion closer to the proximal end. On the other hand, an insertion hole 20a into which the projection 10a of the spout main body 10 is inserted is provided at the center of the water discharger 20 (watering member 24), and the insertion hole 20a penetrates to the opposite surface. On the inner peripheral side surface of the insertion hole 20a, a step portion 20b is provided for reducing the diameter of a portion far from the spout main body portion 10 as compared with a portion close to the spout main body portion 10. The reduced diameter portion provided in the portion near the tip of the protrusion 10a is formed to have a longer length in the direction along the axis C than the reduced diameter portion provided in the portion far from the spout main body portion 10 of the insertion hole 20a. . In the state where the projection 10 a of the spout body 10 is inserted into the insertion hole 20 a of the water discharger 20, the step 10 c of the spout body 10 and the step 20 b of the water discharger 20 are engaged. Further, the fixing screw 27 is inserted from an opening of the insertion hole 20a on the side far from the spout body portion 10, and is inserted into the insertion hole 20a and screwed to the fixing hole 10b. Between the screw head portion of the fixing screw 27 and the spout body 10, a cylindrical interposed member 28 having a larger diameter than the outer diameter of the portion near the tip of the protrusion 10 a is sandwiched and fixed. For this reason, the reduced diameter part provided in the site | part far from the spout main-body part 10 of the insertion hole 20a is loosely fitted between the reduced diameter part provided in the site | part near the front-end | tip of the processus | protrusion 10a, and the cylindrical interposed member 28. Thus, the cylindrical member 26 can rotate about the axis C with respect to the spout body 10. That is, the water discharger 20 is pivotally supported with respect to the spout body 10 so as to be rotatable about the axis C.

  As shown in FIGS. 3 to 5, the water sprinkling member 24 has a substantially cylindrical outer shape as a whole, and a tubular member 26 is fitted on the water sprinkling member 24, and the outer periphery of the water sprinkling member 24 is cylindrical. The member 26 is covered. The outer peripheral surface of the water spray member 24 is provided so as to be in contact with the inner peripheral surface of the cylindrical member 26, and a seal member 29 is appropriately provided between the outer peripheral surface of the water spray member 24 and the inner peripheral surface of the cylindrical member 26. It has been. Further, a gap T is formed between the water spray member 24 and the inflow port 18. Specifically, the gap T is a gap between the upper end surface where the shower channel 42 opens in the water sprinkling member 24 and the opening end surface on the downstream side of the inflow port 18.

A rectifying water discharge port 30 is formed at the downstream end of the water discharge unit 20 and at the central portion of the water sprinkling member 24, and a rectifying network 30 a is provided on the upstream side of the rectifying water discharge port 30. In the present embodiment, the rectifying water discharge port 30 has a large number of holes that pass through the bottom surface of a dish-shaped (bottomed tubular) member that is attached to the opening at the center of the lower end of the main body portion of the water sprinkling member 24 by screw engagement. It is provided as a part. The rectifying network 30a has a lattice shape, and a large number of fine holes are formed. For this reason, the water discharged from the rectifying water discharge port 30 passes through the holes of the rectifying network 30a, so that the rectified water discharge is prevented from being disturbed, and the flow of the rectified water discharge becomes a gentle flow in which scattering to the bowl portion 8 and the like is suppressed. Further, by providing flow resistance to the water flowing into the flow straightening outlet 30 by the flow straightening network 30a, water flowing through the flow straightening flow path 32 described later is temporarily stored, and the gas-liquid of the stored water and air Form an interface.
In addition, the center part of the watering member 24 here is a part around the axis C excluding the peripheral part of the watering member 24.

  A rectifying channel 32 is formed upstream of the rectifying water discharge port 30 and in the central portion of the water sprinkling member 24. The rectifying channel 32 is a channel that communicates the inlet 18 and the rectifying water outlet 30 and guides the water discharged from the inlet 18 toward the rectifying water outlet 30.

  The water sprinkling member 24 is formed with a shower spout 40 disposed at the peripheral edge along the outer periphery of the rectifying spout 30. The shower spout 40 is composed of a plurality of minute holes, a plurality of minute holes are formed at substantially equal intervals along the circumferential direction of the axis C, and is also substantially equal along the circumferential direction of the axis C on the outer peripheral side thereof. A plurality of minute holes are formed at intervals. Also in this shower spout 40, by giving flow resistance to the water flowing into the shower spout 40, the water flowing through the shower flow path 42 described later is temporarily stored, and the air between the stored water and air is stored. A liquid interface is formed.

  In the water sprinkling member 24, a shower channel 42 is formed upstream of the shower spout 40 and on the outer peripheral side of the rectifying channel 32. In other words, the water sprinkling member 24 has the shower channel 42. The shower channel 42 communicates the inlet 18 and the shower spout 40.

  Here, the shower channel 42 has an upstream shower channel 42a and a downstream shower channel 42b formed downstream of the upstream shower channel 42a. The upstream shower channel 42a is a plurality of channels formed linearly in a direction along the axis C that communicates the inlet 18 and the downstream shower channel 42b. Further, the downstream shower channel 42 b is a channel formed at the downstream end over the entire circumference of the water sprinkling member 24 while being connected to the shower spout 40.

Specifically, the upstream shower flow path 42 a is a flow path formed inside the cylindrical portion 24 a provided at a plurality of equal intervals in the circumferential direction of the water spray member 24 at the upper part of the water spray member 24. That is, the cylindrical portion 24 a of the water sprinkling member 24 is formed linearly in the direction along the axis C. The upstream shower channel 42a and the rectifying channel 32 are separated by the peripheral wall of the cylindrical portion 24a. In the present embodiment, six cylindrical portions 24a forming the upstream shower channel 42a are provided at substantially equal intervals along the circumferential direction of the axis C. The same number of cylindrical portions 24a as the inflow ports 18 are formed.
Further, the downstream shower channel 42 b penetrates in a donut shape in the circumferential direction of the water sprinkling member 24 at the lower part of the water sprinkling member 24, and is formed by the outer peripheral surface of the water sprinkling member 24 and the inner peripheral surface of the tubular member 26. The flow path.

  The shower channel 42 is provided with a shielding part 24 b that blocks the flow of water flowing from the upstream of the shower channel 42. The shielding part 24 b is a wall protruding from the wall surface forming the shower channel 42, that is, the outer peripheral wall surface of the water spray member 24. Specifically, the shielding portion 24b protrudes from the outer peripheral surface of the water sprinkling member 24 toward the outer peripheral direction (radially outer side) of the shaft C at the lower portion of the water sprinkling member 24 forming the downstream shower channel 42b. Is formed. Moreover, this shielding part 24b is formed over the perimeter of the water sprinkling member 24 in the downstream shower flow path 42b. That is, the shielding part 24b has a bowl shape. Furthermore, the outer peripheral end portion of the shielding portion 24b is formed to be closer to the outer peripheral side than the outer peripheral end portion of the outlet opening of the upstream shower channel 42a. That is, when the axis C is viewed in the axial direction, the linear upstream shower flow path 42a along the axial direction of the axis C is located on the inner peripheral side of the shielding portion 24b. Therefore, the water flowing from the upstream shower channel 42a to the downstream shower channel 42b collides with the shielding part 24b.

  Moreover, the shielding part 24b has the collision surface 24c perpendicular | vertical with respect to the flow direction of the water which collides with the shielding part 24b. Specifically, the collision surface 24c is an upper surface of the shielding part 24b on which water flowing from the upstream shower channel 42a to the downstream shower channel 42b collides. More specifically, the upper surface of the shielding part 24b is formed in a plane perpendicular to the flow direction of the water flowing in the upstream shower channel 42a (the direction of the axis C). Furthermore, the back surface 24d (the surface opposite to the top surface of the shielding portion 24b), which is the back surface of the shielding portion 24b, is formed in a taper shape from the upstream to the downstream of the shower channel 42. That is, the back surface 24d of the shielding portion 24b has a partial shape of a conical surface that gradually decreases in diameter from the upper side to the lower side of the water spray member 24 with the axis C as the center. Moreover, the shielding part 24b has an outer peripheral surface which is a substantially cylindrical surface between the collision surface 24c and the back surface 24d.

  In addition, an inflow space S is formed on the back side (back surface 24d side) of the shielding part 24b. The inflow space S communicates with the shower water spouting port 40 and into which water bypassing the shielding part 24b flows. This inflow space S is a space formed between the shielding portion 24 b and the shower spout 40, and is formed over the entire circumference of the water spray member 24. The inflow space S is a space formed by an outer peripheral groove-like portion that is relatively recessed by the shielding portion 24b projecting outward in the radial direction. In the inflow space S, among the shower spouts 40 formed along the inner and outer double circumferences, the upstream side of the shower spout 40 along the inner circumference faces and opens. That is, the shower spout 40 along the inner circumference is located on the inner circumference side with respect to the outer circumference of the shielding portion 24b.

  Thus, since the shielding part 24b is provided in the downstream shower channel 42b, a deflection channel 44 that bypasses the shielding part 24b is formed in the downstream shower channel 42b. Therefore, the water that has flowed from the upstream shower channel 42a into the downstream shower channel 42b flows into the shower spout 40 through the deflection channel 44 that bypasses the shield 24b. The flow passage cross-sectional area of the deflection flow passage 44 is formed to be equal to or larger than the flow passage cross-sectional areas of all the inflow ports 18.

<Switching between rectified water discharge and shower water discharge>
Next, with reference to FIG. 6, switching of rectified water discharge and shower water discharge in the water discharge device according to one embodiment of the present invention will be described.

  FIG. 6 is an explanatory diagram showing switching of shower water discharge and rectified water discharge according to an embodiment of the present invention. 6 is a cross-sectional view taken along line VI-VI in FIG. 2, and the water spray member 24 is indicated by a broken line.

  As shown in FIG. 6, the water discharge device 1 rotates the water discharge unit 20 by a predetermined angle in the circumferential direction of the axis C, which is the central axis of the rectification water discharge port 30, with respect to the spout main body unit 10. Can be switched between water discharge from water (rectified water discharge) and water discharge from the shower water discharge port 40 (shower water discharge). Here, the state shown in FIG. 6A is a state in which water is allowed to flow from the inlet 18 to the shower channel 42 and bubble mixed water is discharged from the shower spout 40 (hereinafter referred to as “shower state”). The state shown in FIG. 6B is a state in which water flows from the inflow port 18 to the rectifying flow path 32 and the bubble mixed water is discharged from the rectifying water discharge port 30 (hereinafter referred to as “rectified state”).

In the shower state, the inlet 18 is disposed at a position that coincides with the opening of the cylindrical portion 24 a of the water sprinkling member 24. That is, in the shower state, the inlet 18 is disposed at a position that coincides with the inlet portion of the upstream shower channel 42a.
From this showering state, when the spout 20 is rotated by a predetermined angle in the circumferential direction of the axis C, which is the central axis of the rectifying spout 30 with respect to the spout body 10, a rectifying state is obtained. That is, when the water sprinkling member 24 is rotated with respect to the inflow port 18, the position of the inflow port 18 is arranged in the rectification flow path 32 between the openings of the cylindrical portion 24 a, and a rectification state is obtained.
In addition, if the water discharge part 20 is rotated in the direction opposite to the direction rotated when switching from the shower state to the rectifying state, the rectifying state is switched to the shower state.

  In this way, by rotating the water spray member 24 with respect to the inlet 18 and changing the position of the cylindrical portion 24a of the water spray member 24 with respect to the position of the inlet 18, the rectification state and the shower state are switched.

<Operation and action>
Next, with reference to FIGS. 7 and 8, the operation and action of the water discharger according to one embodiment of the present invention will be described.

  FIG. 7 is an explanatory view schematically showing the flow of water in the water discharging device according to one embodiment of the present invention. FIG. 8 is an enlarged view of region B in FIG.

  First, when the handle 6 is operated by a user or the like and an on-off valve (not shown) provided upstream of the flexible hose is opened, the water guide 14 is passed through the flow path in the flexible hose. Water from a water supply source (not shown) flows in. And the water which flows through the water conveyance part 14 is guide | induced to the inflow port 18, and water flows into the flow path (rectification flow path 32 or the shower flow path 42) in the water discharging part 20 from the inflow port 18. FIG.

  As shown in FIGS. 7 and 8, in the shower state, water flows from the inlet 18 to the shower channel 42. Since the flow path of the inflow port 18 is restricted, the water discharged from the inflow port 18 flows into the shower flow path 42 at a relatively high flow rate.

At this time, the rectification water discharge port 30 functions as an air introduction port, and the rectification flow channel 32 functions as an air flow channel. That is, when water is ejected from the inlet 18 toward the shower channel 42, a negative pressure is generated in the rectifying channel 32, and air flows from the rectifying water outlet 30 through the rectifying channel 32 and the gap T to the shower. It flows in toward the flow path 42. The air flows from the rectifying flow path 32 through the gap T into the shower flow path 42 and is entrained in the flow of water flowing from the inflow port 18 toward the shower flow path 42 to be foamed.
In the rectification state, the shower spout 40 functions as an air inlet, and the shower channel 42 functions as an air channel.

  In the shower channel 42, the gas-liquid interface is formed by temporarily retaining water due to the channel resistance of the shower outlet 40. Water enters the gas-liquid interface, and the foamed air is mixed therein, thereby generating bubble-containing water. The bubble mixed water passes through the shower spout 40 and is discharged to the outside.

Here, when water is ejected from the inflow port 18 to the shower channel 42, the water flows through the upstream shower channel 42a formed in a straight line to the downstream shower channel 42b. Then, the water flowing through the downstream shower channel 42b is deflected by the deflecting channel 44 from the upstream shower channel 42a to the downstream shower channel 42b, and the water flow direction is deflected to the shower spout 40. Flowing.
Specifically, the water that flows linearly through the upstream shower channel 42a and flows into the downstream shower channel 42b flows so as to collide with the upper surface of the shielding part 24b, and bypasses the shielding part 24b. It flows in the outer circumferential direction and the circumferential direction of the water sprinkling member 24. Thereby, compared with the case where the deflection | deviation flow path 44 is not formed (when the shielding part 24b is not formed), the speed of the water which flows through the shower flow path 42 is decelerated.

Here, when the deflection flow path 44 is not formed (when the shielding part 24b is not formed), the water that flows linearly through the upstream shower flow path 42a and then flows into the downstream shower flow path 42b remains as it is. It flows directly toward the shower spout 40 (see the broken line arrow in FIG. 8). That is, it flows into the shower spout 40 from the downstream shower channel 42b while maintaining the flow velocity in the upstream shower channel 42a substantially. For this reason, flow velocity unevenness occurs in the circumferential direction of the water sprinkling member 24. In FIG. 8, an example of a cross-sectional shape when the deflection channel 44 is not formed is indicated by a dotted line Y.
Furthermore, in this embodiment, a plurality of shower spouts 40 are formed at equal intervals in the circumferential direction of the axis C, and a plurality of shower spouts 40 are also formed on the outer periphery thereof. Thereby, also in the shower spout 40 formed in the inner peripheral side and the shower spout 40 formed in the outer peripheral side, the flow velocity of the water flowing in from the downstream shower flow path 42b will be uneven. Therefore, the water discharged from the shower water outlet 40 becomes more unstable.

  According to the water discharging device 1 according to the embodiment of the present invention, the shielding portion 24b is bypassed in the shower flow path 42 by providing the shielding portion 24b that blocks the flow of water flowing from the upstream of the shower flow path 42. A deflection channel is formed. Thereby, the speed of the water flowing through the shower channel 42 can be reduced, and the flow velocity unevenness at the shower water outlet 40 disposed on the outer periphery of the rectifying water outlet 30 can be suppressed. Therefore, even when bubble-containing water is discharged from the shower spout 40, it is possible to suppress water splashing of the discharged water portion (for example, the bowl portion 8) due to the shower water discharge.

  Moreover, since the shielding part 24b is a wall protruding from the wall surface forming the shower channel 42, the speed of water flowing in the shower channel 42 can be reduced with a simple structure. For this reason, even when the bubble-mixed water is discharged from the shower spout 40 while simplifying the structure, it is possible to suppress water splashing of the discharged water portion (for example, the bowl portion 8) due to the shower water discharge.

  Furthermore, since the shielding part 24b is formed in a bowl shape over the entire circumference of the water spray member 24, when it is discharged from the plurality of upstream shower channels 42a and collides with the shield part 24b, the circumferential direction of the water spray member 24 is also provided. Water flows. Thereby, the water discharged | emitted from the some upstream shower flow path 42a collides with each other, and the flow rate of water can further be decelerated.

  Further, the flow passage cross-sectional area of the deflection flow passage 44 is the same as the flow passage cross-sectional area of the inlet 18 or larger than the flow passage cross-sectional area of the inlet 18, so that the internal pressure of the water discharge device 1 does not increase, and the deflection flow passage 44 The water flow of 44 can be made smooth. Thereby, the flow of the water which flows through the shower channel 42 can be made smooth, decelerating the speed of the water which flows through the shower channel 42. Therefore, water discharge from the shower water discharge port 40 can be further stabilized.

  Furthermore, since the inflow space S is formed on the back side (the back surface 24d side) of the shielding portion 24b, the water flowing around the shielding portion 24b flows into the inflow space S, and then the shower spout. It flows to 40. At this time, the back surface 24d of the shielding portion 24b in contact with the inflow space S is formed in a taper shape from the upstream side to the downstream side of the shower channel 42, and thus flows around the shielding portion 24b. Water flows smoothly into the inflow space S.

Thus, since the inflow space S into which the water which bypassed the shielding part 24b flows is formed in the back side (back surface 24d side) of the shielding part 24b, the water which bypassed the shielding part 24b flows into the inflow space S. After that, it flows into the shower spout 40. Thereby, since the flow velocity of the water which passed the shielding part 24b is decelerated, the water which flows toward the shower outlet 40 from the shielding part 24b flows into the shower outlet 40 more uniformly. Therefore, even when bubble-containing water is discharged from the shower spout 40, it is possible to further suppress the splashing of the discharged water portion (for example, the bowl portion 8) due to the shower water discharge.
Further, since the flow path space S is formed so as to be recessed toward the inside of the water sprinkling member 24, the flow velocity of the water that has passed through the shielding portion 24b can be reduced without increasing the outer diameter of the water discharge portion 20. it can. Therefore, it is possible to suppress the water splashing of the discharged water portion (for example, the bowl portion 8 or the like) due to shower water discharge while making the water discharge device 1 compact.

  Further, since the collision surface 24c is formed perpendicular to the flow of water that collides with the shielding portion 24b (the flow of water flowing through the upstream shower flow path 42a), the collision surface 24c is formed in the upstream shower flow path 42a. Compared with the case where it is formed in a taper shape that falls from the inner peripheral side to the outer peripheral side with respect to the flow of water flowing through the water, the flow velocity can be further reduced. Moreover, while suppressing that the internal pressure in the water discharging apparatus 1 increases compared with the case where the collision surface 24c is formed in the shape of a mortar that rises from the inner peripheral side to the outer peripheral side with respect to the flow of the upstream shower channel 42a. The mold for molding the shielding part 24b can be simplified. Therefore, productivity can be improved while reducing the flow velocity in the shower channel 42 and suppressing the internal pressure in the water discharge device 1 from increasing more than necessary.

<Modification>
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above.

  For example, in the switching between the rectifying state and the shower state, the configuration in which the water spray member 24 rotates with respect to the inlet 18 has been described. However, when the inlet 18 rotates with respect to the water spray member 24, the rectifying state And the shower state may be switched.

  Moreover, although the water sprinkling member 24 and the cylinder member 26 demonstrated the structure which is a different body, the water sprinkling member 24 and the cylinder member 26 may be formed integrally.

  The elements included in each of the embodiments described above can be combined as much as technically possible, and combinations thereof are also included in the scope of the present invention as long as they include the features of the present invention.

DESCRIPTION OF SYMBOLS 1 Water discharging apparatus 2 Washing vanity 4 Back wall surface 6 Handle 8 Bowl part 9 Spout 10 Spout main body part 10a Protrusion 10b Fixing hole 10c Step part 12 First outer case 14 Water introduction part 16 Flexible hose 18 Inlet 20 Water discharge part 20a Insertion Hole 20b Step portion 22 Second outer case 24 Water sprinkling member 24a Cylindrical portion 24b Shielding portion 24c Colliding surface 24d Back surface 26 Cylindrical member 27 Fixing screw 28 Interposing member 29 Sealing member 30 Rectifier water outlet 30a Rectifier network 32 Rectifier channel 40 Shower spout Water outlet 42 Shower flow path 42a Upstream shower flow path 42b Downstream shower flow path 44 Deflection flow path C-axis S Inflow space T Clearance Y Dotted line

Claims (6)

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,
An inlet through which water flows,
A shower spout, which is arranged at the periphery, and discharges the mixed water in the form of a shower;
A shower channel that communicates the inlet and the shower outlet;
The inflow port is narrower than the shower channel,
The water discharge apparatus, wherein the shower channel is provided with a shielding channel that blocks a flow of water flowing from the upstream of the shower channel, so that a deflection channel that bypasses the shielding unit is formed. The water discharge device according to claim 1, wherein the shielding portion is a wall protruding from a wall surface forming the shower channel. A watering member having the shower channel;
The shower channel has a downstream end connected to the shower spout and a straight line connecting the downstream shower channel formed over the entire circumference of the water spray member, and the inlet and the downstream shower channel. A plurality of upstream shower channels,
The water discharge device according to claim 2, wherein the shielding portion is formed over the entire circumference of the water spray member in the downstream shower channel. The water discharge device according to claim 3, wherein a flow path cross-sectional area of the deflection flow path is equal to or greater than a flow path cross-sectional area of the inflow port. The water discharging device according to any one of claims 1 to 4, wherein a space is formed on a back side of the shielding portion so as to allow water that bypasses the shielding portion to communicate with the shower water discharge port. The water discharge device according to any one of claims 1 to 5, wherein the shielding portion has a collision surface perpendicular to a flow direction of water that collides with the shielding portion.

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