JP2019027256A - Water discharge device - Google Patents

Abstract

To provide a technique capable of maintaining relatively high water discharge performance while requiring no maintenance or low frequency in a water discharge device capable of discharging shower water discharging and straight water discharging.SOLUTION: The water discharge device comprises a shower water discharging channel 88 for guiding the water flowing from a water passage 82 to a plurality of water discharge ports 64d for shower water discharging, a straight water discharging channel 92 for guiding the water flowing from the water passage 82 to a water discharge port 90a for straight water discharging and a strainer 70 through which the water flowing into the plurality of discharge ports 64d passes. The strainer 70 is provided so that the water passage 82 and the straight water discharging channel 92 have a portion communicating not through the strainer 70.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a water discharge device.

  A water discharge device capable of discharging shower water discharge and straight water discharge is known. Conventionally, for example, a water discharge device as described in Patent Document 1 has been proposed.

JP 2006-193923 A

  The conventional water discharging apparatus described in Patent Document 1 includes a strainer for filtering water flowing into a discharge flow path (that is, a shower hole) for shower water discharge. Thereby, it is suppressed that a foreign material is clogged in the discharge flow path for shower water discharge, and it is suppressed that the water discharge performance falls. However, in this water discharger, foreign matter can accumulate in the strainer. If foreign matter accumulates in the strainer, the water discharge performance will deteriorate. Therefore, the maintenance which removes the foreign material collected on the strainer is required.

  The present invention has been made in view of such a situation, and a purpose thereof is a technique capable of maintaining a relatively high water discharge performance while maintenance is unnecessary or infrequent in a water discharge device capable of discharging shower water discharge and straight water discharge. Is in the provision of.

  In order to solve the above-described problems, a water discharge device according to an aspect of the present invention includes a first water channel for guiding water flowing from an upstream water channel to a plurality of first water discharge ports for shower water discharge, and an upstream water channel. A second water channel for guiding the flowing water to the second water discharge port for straight water discharge, and a strainer through which the water flowing into the plurality of first water discharge ports passes. The strainer is provided so as to have a portion where the upstream water channel and the second water channel communicate without passing through the strainer.

  ADVANTAGE OF THE INVENTION According to this invention, in the water discharging apparatus which can discharge shower water discharge and straight water discharge, the technique which can maintain a comparatively high water discharge performance can be provided, although a maintenance is unnecessary or it is low frequency.

It is a side view which shows the installation state of the water discharging apparatus which concerns on embodiment. It is an expanded sectional view which expands and shows a part of water discharging apparatus of FIG. It is an expanded sectional view which expands and shows a part of water discharging apparatus of FIG. It is sectional drawing of the water discharging head of FIG. 5A and 5B are an end view taken along line AA and an end view taken along line BB in FIG. 4, respectively. It is a perspective view which shows a strainer and a 2nd water channel formation member. It is a perspective sectional view showing a strainer and its circumference. FIGS. 8A and 8B are views showing how water flows in the water discharge head. It is an expanded sectional view which expands and shows a part of water discharging head concerning a modification. 10A and 10B are cross-sectional views showing a water discharge head according to a modification.

  Hereinafter, the same or equivalent components and members shown in the respective drawings are denoted by the same reference numerals, and repeated descriptions thereof are omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

  1-3 show the water discharging apparatus 10 which concerns on embodiment. FIG. 1 is a side view of the water discharge device 10. 2 and 3 are enlarged cross-sectional views showing a part of the water discharge device 10 in an enlarged manner. FIG. 2 shows a state where the water discharge head 18 is accommodated in the apparatus main body 14, and FIG. 3 shows a state where the water discharge head 18 is pulled out from the apparatus main body 14.

  In the present embodiment, water discharge device 10 is installed in a sink such as a kitchen. In addition, the water discharging apparatus 10 may be installed in a hand-washing machine, a washbasin, a bathroom, etc. The water discharging device 10 discharges water or straight water discharged from the water supply source through the water supply channel 12. “Shower water discharge” refers to a water discharge mode in which water is discharged in a shower form as a plurality of water streams. “Straight water discharge” refers to a water discharge mode in which water is discharged straight as a single water flow.

  The water discharge device 10 mainly includes a device main body 14, a water supply hose 16, a water discharge head 18, a sensor member 20, and an on-off valve 40.

  The apparatus main body 14 has a role of supporting the water discharge head 18 and the like. The apparatus main body 14 of the present embodiment is configured using a water discharge pipe 22 or the like. The water supply hose 16 is a flexible hose or the like, and is configured using a flexible material. The aforementioned water supply path 12 is formed inside the water supply hose 16. The water discharge head 18 is connected to the downstream end of the water supply hose 16. The water discharge head 18 can be pulled out from the apparatus main body 14 together with the water supply hose 16. The water discharge head 18 discharges the water flowing in from the water supply hose 16 through the water discharge port 42 or shower water.

  The sensor member 20 is configured by housing the object detection sensor 24 and the like inside a sensor case. The sensor member 20 is accommodated in the apparatus main body 14a. The object detection sensor 24 of the present embodiment is an infrared distance measuring sensor, that is, a photoelectric sensor. The object detection sensor 24 can detect the presence or absence of an object to be detected within a predetermined detection area 24a. The object detection sensor 24 accepts that an object is detected in the detection area 24 a as a switching operation for switching the operation state of the water discharge device 10. When the object detection sensor 24 receives the switching operation, a control unit (not shown) performs control so as to open and close the on-off valve 40 (FIG. 1) provided in the water supply channel 12. Thereby, the operation state of the water discharging apparatus 10 is switched between the water discharging state and the water discharging stop state. Thus, the water discharging apparatus 10 of this Embodiment functions as a water faucet apparatus which can switch a water discharge state and a water discharge stop state in response to the switching operation by a user.

  FIG. 4 is a cross-sectional view of the water discharge head 18. 5A and 5B are an end view taken along line AA and an end view taken along line BB in FIG. 4, respectively. The water discharge head 18 includes a case member 50, a water channel forming unit 52, an operation unit 54, a valve mechanism 100, and a strainer 70.

  The case member 50 constitutes the outer shape of the water discharge head 18. The case member 50 includes a cylindrical first case portion 50a and a cylindrical second case portion 50b protruding from the outer periphery of the first case portion 50a. The case member 50 has a hollow structure, and a continuous internal space is provided in the first case portion 50a and the second case portion 50b. The water discharge port 42 of the water discharge head 18 is formed in the front-end | tip part of the 1st case part 50a.

  Hereinafter, the direction along the central axis Lc of the first case portion 50a is referred to as a first axial direction Pc. A direction along the central axis of the second case portion 50b is referred to as a second axial direction Pd.

  The water channel forming unit 52 is a unit of a plurality of water channel forming members that form a water channel leading to the water outlet 42, and is accommodated in the first case portion 50a. The water channel forming unit 52 includes a first water channel forming member 60, a second water channel forming member 62, and a third water channel forming member 64. The first water channel forming member 60, the second water channel forming member 62, and the third water channel forming member 64 are arranged adjacent to each other in this order from the base end side to the front end side of the first case portion 50a along the first axial direction Pc. Connected to the water channel forming member.

  The first water channel forming member 60 and the second water channel forming member 62 have a column shape extending in the first axial direction Pc. The third water channel forming member 64 has a cylindrical portion 64a extending in the first axial direction Pc, and a plate-like water sprinkling portion 64b provided at the tip of the cylindrical portion 64a. A plurality of discharge passages (shower holes) 64c penetrating the front and back are formed in the sprinkling portion 64b.

  A connection hole 60 c to which the water supply hose 16 is connected via the coupler 44 is formed at the proximal end portion of the first water channel forming member 60. The first water channel forming member 60 is formed with a water channel 82 for allowing water flowing in from the water supply hose 16 to pass therethrough. The water passage 82 extends along the central axis Lc. The first water channel forming member 60 is provided with a barrier portion 84 on which water flowing from the water supply hose 16 collides. The barrier part 84 partitions the water passage 82 into an upstream part 82a and a downstream part 82b. The barrier portion 84 is formed with a communication hole (not shown) that allows the upstream portion 82a and the downstream portion 82b of the water passage 82 to communicate with each other.

  The downstream portion 82b of the water passage 82 includes a main water passage 82c and a connection water passage 82d that is located downstream of the main water passage 82c and is connected to a shower water discharge water passage 88 and a straight water discharge water passage 92 (both will be described later). . The main water channel 82c extends along the central axis Lc. The connecting water channel 82d is a channel whose cross-sectional area is larger than that of the main water channel 82c.

  A shower water discharge channel 88 and a straight water discharge channel 92 are formed in the second water channel forming member 62 and the third water channel forming member 64. The shower water discharge channel 88 is a water channel for guiding the water in the water flow channel 82 to the plurality of discharge flow channels 64c of the water sprinkling part 64b and further to the plurality of shower water discharge ports 64d which are outlet portions thereof. The straight water discharge channel 92 is a water channel for guiding the water in the water flow channel 82 to the discharge channel 90 for straight water discharge, and then to the water discharge port 90a which is the outlet portion. The discharge channel 90 for straight water discharge is formed between the case member 50 and the third water channel forming member 64.

  The valve mechanism 100 is housed in a housing hole 104 provided in the first water channel forming member 60. The valve mechanism 100 includes a valve body 102 and a position holding mechanism 120. The valve body 102 has a columnar shape extending in the first axial direction Pc as a whole. The valve body 102 moves in the first axial direction Pc while being guided by the storage hole 104 by a pushing operation with respect to the operation member 66 (described later). As a result, the valve body 102 comes into contact with and separates from the valve seat 112 provided at the inlet of the straight water discharge water channel 92, and the straight water discharge water channel 92 opens and closes.

  The position holding mechanism 120 of the present embodiment is a heart cam mechanism that uses a heart cam portion, a cam groove, a follower pin, and the like. Each time the valve body 102 moves in the valve opening direction, the position holding mechanism 120 has a valve closing state in which the valve body 102 is held in the valve closing position for closing the straight water discharge water channel 92 and a valve opening position in which the straight water discharging water channel 92 is opened. The valve opening state that holds the body 102 can be switched.

  The operation unit 54 is accommodated in the second case portion 50 b of the case member 50. The operation unit 54 includes an operation member 66. The operation member 66 is provided so as to be operable along the second axial direction Pd. The operation member 66 of this embodiment is a rod. The valve body 102 can be operated by moving the operating member 66 in the operating direction Ph by a pushing operation.

  FIG. 6 is a perspective view showing the strainer 70 and the second water channel forming member 62. FIG. 7 is a perspective sectional view showing the strainer 70 and its periphery. 6 and 7 are referred to in addition to FIG.

  The strainer 70 is a filtration member for filtering water flowing into the discharge flow path 64c of the water sprinkling part 64b. The strainer 70 is provided so that the water passage 82 and the discharge passage 64 c communicate with each other via the strainer 70, and the water passage 82 and the straight water discharge water passage 92 communicate with each other without the strainer 70. The strainer 70 may be provided in the shower water discharge channel 88, but is preferably provided in the inlet 88a of the shower water discharge channel 88 or on the upstream side thereof (that is, the water flow channel 82).

  In the illustrated example, the strainer 70 is a semi-circular mesh plate having a large number of water passage holes, and the water passage 82 and the upstream side of the inlet 88a of the shower water discharge passage 88 (that is, the water passage 82). A straight water discharge channel 92 is provided so as to communicate without passing through the strainer 70. Further, the strainer 70 is configured to guide the foreign matter filtered by the strainer 70 during shower water discharge (that is, prevented from passing) to flow into the straight water discharge channel 92 during straight water discharge. More specifically, the strainer 70 is positioned closer to the inlet 92a of the straight water discharge channel 92 on the downstream side in the cross section along the water passage 82 and the central axis Lc, in the cross section including the central axis Lc in the illustrated example. Is configured to do.

  Further, in the illustrated example, the inflow port 88 a of the shower water discharge channel 88 faces the main water channel 82 c of the water flow channel 82, and the inflow port 92 a of the straight water discharge channel 92 does not face the main water channel 82 c of the water flow channel 82. . In other words, the inflow port 88 a of the shower water discharge water channel 88 is configured to be located closer to the main water channel 82 c of the water flow channel 82 than the inflow port 92 a of the straight water discharge water channel 92.

  FIGS. 8A and 8B are diagrams illustrating how water flows in the water discharge head 18. FIG. 8A shows a state during shower water discharge, and FIG. 8B shows a state during straight water discharge. As shown in FIG. 8A, when the valve body 102 is in the closed state, the water flowing into the water passage 82 from the water supply hose 16 does not flow into the straight water discharge channel 92 but only the shower water discharge channel 88. Flow into. In particular, the water flows into the shower water discharge channel 88 through the strainer 70. Therefore, at least a part of the foreign matter contained in the inflowing water is filtered by the strainer 70. The water that has flowed into the shower water discharge channel 88 is discharged as a plurality of water discharge flows Wf1 from the water discharge ports 42 of the water discharge head 18 through the plurality of shower water discharge ports 64d of the water sprinkling portion 64b, that is, shower water is discharged.

  On the other hand, as shown in FIG. 8B, when the valve body 102 is in the open state, the water flowing into the water passage 82 from the water supply hose 16 flows into both the straight water discharge channel 92 and the shower water discharge channel 88. To do. The water flowing into the straight water discharge channel 92 and the water flowing into the shower water discharge channel 88 merge in the process of being discharged from the plurality of shower water discharge ports 64d and the straight water discharge port 90c, and the water discharge port of the water discharge head 18 42 is discharged as a single water discharge flow Wf2, that is, straight water is discharged. Since the water passage 82 and the straight water discharge channel 92 have a portion that does not pass through the strainer 70, the foreign matter filtered by the strainer 70 at the time of shower water discharge flows on the water flow to the straight water discharge channel 92, and the water discharge port. It is discharged to the outside from 90a.

  According to the water discharging apparatus 10 according to the present embodiment described above, the strainer 70 is provided so that the water passage 82 and the discharge passage 64c communicate with each other through the strainer 70. Thereby, since water flows into the discharge flow path 64c through the strainer 70, it is possible to prevent foreign matter from flowing into the discharge flow path 64c and clogging the discharge flow path 64c with foreign matter. Further, the strainer 70 is provided so as to have a portion where the water passage 82 and the straight water discharge water passage 92 communicate with each other without passing through the strainer 70. Thereby, foreign matter filtered into the strainer 70 during shower water discharge is discharged from the water outlet 90a to the outside through the straight water discharge channel 92 during straight water discharge, so that foreign matter is also prevented from collecting around the strainer 70 and its upstream side. That is, according to the water discharging apparatus 10 which concerns on this Embodiment, the water discharging performance can be maintained and the maintenance which removes the foreign material collected on the strainer 70 can be made unnecessary, or can be made comparatively infrequently.

  Moreover, according to the water discharging apparatus 10 which concerns on this Embodiment, Preferably, the strainer 70 is provided in the inflow port 88a of the water channel 88 for shower water discharging, or the upstream, ie, the water flow path 82, from the inflow port 88a. Thereby, since the foreign material filtered by the strainer 70 at the time of shower water discharge becomes easy to flow into the water channel 92 for straight water discharge on the flow of the water at the time of straight water discharge, a foreign material can be more reliably discharged outside.

  Further, according to the water discharge device 10 according to the present embodiment, the inflow port 88a of the shower water discharge channel 88 faces the main water channel 82c of the water flow channel 82, and the inflow port 92a of the straight water discharge channel 92 is the main water channel 82c of the water flow channel 82. It is configured not to face. In other words, the inflow port 88 a of the shower water discharge water channel 88 is configured to be located closer to the main water channel 82 c of the water flow channel 82 than the inflow port 92 a of the straight water discharge water channel 92. As a result, a water flow from the vicinity of the inlet 88a of the shower water discharge channel 88 to the vicinity of the inlet 92a of the straight water discharge channel 92 is formed during the straight water discharge, and the foreign matter filtered into the strainer 70 during the shower water discharge is the straight water discharge channel 92. It becomes easy to flow.

  Moreover, according to the water discharging apparatus 10 which concerns on this Embodiment, in the cross section along the water flow path 82 and by extension, the central axis Lc, the strainer 70 is comprised so that it may be located in the downstream, so that it is closer to the inflow port 92a of the straight water discharging water path 92. ing. As a result, the foreign matter filtered into the strainer 70 during shower water discharge flows along the water flow while being guided by the strainer 70 without being obstructed by the strainer 70 during straight water discharge, and then flows into the straight water discharge channel 92. That is, foreign matter can be more reliably discharged outside.

  The water discharging device according to the embodiment has been described above. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to the combination of each component, and such modifications are also within the scope of the present invention.

(Modification 1)
FIG. 9 is an enlarged cross-sectional view showing a part of a water discharge head according to a modification. In this modification, the inflow port 88 a of the shower water discharge channel 88 is located upstream of the inflow port 92 a of the straight water discharge channel 92. That is, the shower water discharge channel 88 is connected to the water flow channel 82 on the upstream side of the straight water discharge channel 92. In this case, the foreign matter filtered by the strainer 70 at the time of shower water discharge is discharged from the straight water discharge channel 92 to the outside along the flow of water from upstream to downstream at the time of straight water discharge. That is, foreign matter can be more reliably discharged outside.

(Modification 2)
10A and 10B are cross-sectional views showing a water discharge head according to a modification. FIG. 10A shows a state during shower water discharge, and FIG. 10B shows a state during straight water discharge. The water discharge head includes a cylindrical member 150, a second water channel forming member 62, a third water channel forming member 64, an operation member 154, a seal member 202, and a strainer 70.

  The operation member 154 has a tubular shape as a whole and is disposed on the outer peripheral side of the tubular member 150. The operation member 154 is supported to be rotatable about the rotation axis in a state where relative displacement in the axial direction (vertical direction in the drawing) along the rotation axis is restricted with respect to the second water channel forming member 62. .

  Two spiral grooves 154 a are formed on the inner peripheral surface of the operation member 154, and a convex portion 150 a that slidably contacts the spiral groove 154 a of the operation member 154 is formed on the outer peripheral surface of the cylindrical member 150. . The cylindrical member 150 is supported by the second water channel forming member 62 via the operation member 154 by the contact of the convex portion 150a with the spiral groove 154a of the operation member 154. When the operating member 154 is rotated with respect to the second water channel forming member 62, the convex portion 150 a of the cylindrical member 150 slides along the spiral groove 154 a of the operating member 154, so that the cylindrical member 150 is moved with respect to the operating member 154. Moves relative to each other in the vertical direction. At this time, the cylindrical member 150 moves relative to the second water channel forming member 62 in the vertical direction. Thus, the spiral groove 154a of the operating member 154 and the convex portion 150a of the cylindrical member 150 constitute a linear motion mechanism that converts the rotational motion of the operating member 154 into the linear motion of the cylindrical member 150.

  A seal member 202 is disposed between the second water channel forming member 62 and the tubular member 150. The seal member 202 is fixed to the second water channel forming member 62 by adhesion or the like. First, the seal member 202 has a role of sealing between the cylindrical member 150 and the second water channel forming member 62. Secondly, the seal member 202 serves to block communication between the water passage 82 of the second water passage forming member 62 and the straight water discharge water passage 92.

  The strainer 70 has a conical side surface shape, that is, an umbrella-like shape. The strainer 70 is fixed in a state where the end corresponding to the bottom surface of the cone is in contact with the upstream end of the third water channel forming member 64. The strainer 70 is provided at the inlet of the straight water discharge water channel 92 in a cross section along the central axis Lc of the water passage 82 and the cylindrical member 150 and the second water channel forming member 62, and in a cross section taken along a plane including the central axis Lc in the illustrated example. The closer it is, the more downstream it is. In addition, in the example of illustration, although provided in the upstream rather than the inflow port 88a of the shower water discharge channel 88, you may provide in the shower water discharge channel 88.

  When the operation member 154 is rotated with respect to the second water channel forming member 62 and is relatively moved so that the second water channel forming member 62 and the tip of the cylindrical member 150 are brought closer to each other, as shown in FIG. The water channel forming member 64 contacts the seal member 202, and the straight water discharge water channel 92 is closed. At this time, the water that has flowed into the water passage 82 does not flow into the straight water discharge channel 92 but flows into only the shower water discharge channel 88. In particular, the water flows into the shower water discharge channel 88 through the strainer 70. Therefore, at least a part of the foreign matter contained in the inflowing water is filtered by the strainer 70. The water that has flowed into the shower water discharge channel 88 is discharged as a plurality of water discharge flows Wf1 from the water discharge ports 42 of the water discharge head through the plurality of water discharge ports 64d, that is, shower water is discharged.

  When the operation member 154 is rotated in the opposite direction with respect to the second water channel forming member 62 and is relatively moved so that the distal end portions of the second water channel forming member 62 and the cylindrical member 150 are moved away from each other, the third water channel forming member 64 becomes the seal member. Separated from 202, the straight water discharge channel 92 opens. At this time, the water flowing into the water passage 82 flows into both the straight water discharge channel 92 and the shower water discharge channel 88. The water flowing into the straight water discharge channel 92 and the water flowing into the shower water discharge channel 88 merge in the process of being discharged from the plurality of shower water discharge ports 64d and the straight water discharge ports 92b, and the water discharge port 42 of the water discharge head. Are discharged as a single water discharge flow Wf2. Since the water passage 82 and the straight water discharge channel 92 communicate with the strainer 70 without passing through the strainer 70, the foreign matter filtered into the strainer 70 during shower water discharge rides on the flow of water flowing into the straight water discharge channel 92. The water is discharged from the water outlet 92b for straight water discharge.

  According to the water discharging apparatus which concerns on this modification, there can exist an effect similar to the effect produced by the water discharging apparatus 10 which concerns on embodiment.

The following invention is recognized from the above description.
A water discharge device according to an aspect of the present invention includes a first water channel for guiding water flowing from an upstream water channel to a plurality of first water discharge ports for shower water discharge, and straight water discharging water flowing from the upstream water channel A second water channel for leading to the second water outlet, and a strainer through which water flows into the plurality of first water outlets. The strainer is provided so as to have a portion where the upstream water channel and the second water channel communicate without passing through the strainer. According to this aspect, the water discharge performance can be maintained, and maintenance for removing the foreign matter accumulated in the strainer can be unnecessary or relatively low in frequency.

  The strainer may be provided on the inlet of the first water channel or on the upstream side of the inlet.

  The upstream water channel may include a main water channel and a connecting water channel that is located downstream of the main water channel and connected to the first water channel and the second water channel. The inlet of the first water channel may be located closer to the main water channel than the second inlet of the second water channel.

  The inlet of the first water channel may be located upstream of the inlet of the second water channel.

  The upstream water channel extends along a predetermined direction, and in the cross section along the extending direction of the upstream water channel, the strainer is configured to be positioned on the downstream side closer to the inlet of the second water channel. May be.

  In these cases, the foreign matter accumulated in the strainer can be discharged more reliably to the outside.

  DESCRIPTION OF SYMBOLS 10 Water discharging apparatus, 64d Water discharging port, 70 Strainer, 82 Water flow path, 88 Shower water discharging water channel, 90a Water discharging port, 92 Straight water discharging water channel.

Claims (5)

A first water channel for guiding water flowing from the upstream water channel to a plurality of first water outlets for shower water discharge;
A second water channel for guiding water flowing from the upstream water channel to a second water discharge port for straight water discharge;
A strainer through which water flowing into the plurality of first water outlets passes,
The water strainer, wherein the strainer is provided so that the upstream water channel and the second water channel communicate with each other without passing through the strainer.   The water discharging apparatus according to claim 1, wherein the strainer is provided at an inlet of the first water channel or at an upstream side of the inlet. The upstream water channel includes a main water channel, and a connection water channel located on the downstream side of the main water channel and connected to the first water channel and the second water channel,
3. The water discharge device according to claim 1, wherein the inlet of the first water channel is located closer to the main water channel than the second inlet of the second water channel.   4. The water discharge device according to claim 1, wherein the inlet of the first water channel is located upstream of the inlet of the second water channel. 5. The upstream water channel extends along a predetermined direction;
The cross-section along the extending direction of the upstream water channel, the strainer is configured to be positioned on the downstream side closer to the inlet of the second water channel. The water discharging apparatus in any one.

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