JPH05115813A - Multi-functional shower head - Google Patents

Abstract

PURPOSE:To provide a multi-functional shower head few in number of parts, small in size and light in weight. CONSTITUTION:The main body 4 in which a water chamber 5 communicated with the water feeding passage 3, a sprinkler plate 40 which is provided rotatably to cover the main body 4 and has a recessed water chamber 53 in the center and a large number of a sprinkler nozzles 45 in the outer circumferential part and a sheet plate 14 which is fixed in a partitioned state in the water chamber 5 of the inside of the sprinkler plater 40 and has a water passage 20 in a position eccentric from the center are provided. And a switching valve 26 which has the opening 33 in contact with the sheet plate 14 and matched with the water passage 20 and is fixed with the sprinkler plate 40, and a cap 70 which has the spraying nozzle 74 provided to cover the outlet side of the recessed water chamber 53 of the sprinkler plate 40, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional shower head capable of appropriately ejecting normal shower water, massage shower water and the like by switching.

[0002]

2. Description of the Related Art Conventionally, when a shower head that can be used as a hand-held type is provided with a mechanism for jetting normal shower water and a mechanism for jetting shower water for massage, etc., the number of parts is reduced. There is a problem that it becomes large and large, and the weight becomes large, so that it becomes impossible to use with one hand.

[0003]

The present invention has been devised in view of the above problems of the prior art. It has a small number of parts, can be formed into a small size and a light weight, and can be satisfactorily massaged together with ordinary shower water. Its first purpose is not to provide a multifunctional showerhead that can eject shower water, etc.
The gist of is that the main body part in which a water chamber communicating with the water supply passage is formed, and the discharge end side of the main body part is rotatably covered.
A water sprinkling plate having a concave water chamber in the central portion and a large number of water sprinkling holes in the outer peripheral portion, and a sheet plate having a water passage hole at a position eccentric from the center and fixed in a partition shape inside the water chamber. A switching valve that is slidably in contact with the seat plate and that can be aligned with the water passage hole and that has an opening that communicates with the concave water chamber, and that is fixed around the outer periphery of the concave water chamber of the water spray plate in an encircling manner; And a cap having a water jet hole that is provided on the discharge side of the concave water chamber. The second point is
The seat plate is made of a material having high wear resistance and is formed separately from the main body. The third gist is that the seat plate is formed with a circulation hole for improving the water metabolism in the water chamber.
A fourth gist is that the seat plate, the switching valve, and the water spray plate are provided on the outer periphery of a set screw that is inserted into the central portion of the seat plate, the switching valve, and the water spray plate and screwed into the main body. The O-ring storage space surrounded by is formed. The fifth gist is that the inner peripheral surface of the switching valve is
A fitting portion capable of key-connecting the water sprinkling plate is provided in a protruding manner, and a flowing water passage that connects the opening and the concave water chamber is formed on an inner surface of the fitting portion. The sixth gist is that the boss portion of the water passage hole formed in the seat plate is fitted to the main body portion, and the seat plate is fixed to the main body portion while being prevented from rotating. .. The seventh gist is that an inclined surface is formed on the outer periphery of the switching valve to guide the water flow passing through the water passage hole of the seat plate to the water passage hole of the water spray plate. The eighth gist is that a convex portion for reducing the contact resistance is formed on the sliding contact surface of the switching valve with the seat plate.

[0004]

In the first aspect, the shower head is
It consists of a main body part, sprinkler plate, seat plate, switching valve, and few parts with a cap. By rotating the sprinkler plate clockwise or counterclockwise, you can switch between a normal shower and a massage shower. can do. Further, in the second aspect, since the seat plate is formed of a material having a large abrasion resistance which is separate from the main body portion, the portion which is slidably contacted with the seat plate is concentrated to form a durable shower head. be able to. Also, the third
In the gist of the invention, a circulation hole is formed in the seat plate, the circulation of water in the water chamber of the main body is improved through the circulation hole, and dead water does not occur in the water chamber. Can be Further, in the fourth aspect, since the O-ring storage space is formed between the respective parts, the shower head can be made compact.
Further, in the fifth aspect, the sprinkler plate and the switching valve can be integrated by key-connecting the sprinkler plate to the fitting portion formed on the inner peripheral surface of the switching valve. The path can be made compact. Further, in the sixth aspect, the water passage hole formed in the seat plate is located at a portion eccentric from the center of the seat plate, and the boss portion of this water passage hole is fitted to the main body portion to thereby remove the seat plate. It can be fixed to the main body in a state where it is firmly stopped. Further, in the seventh aspect, the switching valve is formed with an inclined surface, and the water passing through the water passage hole on the seat plate side can smoothly flow to the water spray plate side along the inclined surface. Further, in the eighth aspect, by forming a convex portion on the contact surface between the switching valve and the seat plate, it is possible to reduce the contact resistance and improve the durability.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram near the main body of the shower head. The shower head 1 of this example includes a main body portion 4, a seat plate 14, a switching valve 26, a set screw 80, an impeller 56, a cap 70, and a sprinkler plate 40. The configuration of No. 4 will be described with reference to FIG.

FIG. 2 is a perspective view in which a part of the main body 4 is cut away with the main body 4 facing upward. The main body 4 is made of ABS resin or the like in a cylindrical shape with a bottom, and the water supply passage 3 is formed inside. It is integrally formed at the tip of the handgrip part 2 that can be held by the inside, and has a water chamber 5 that communicates with the water supply passage 3 inside, and the inner circumference of the water chamber 5 Several ribs 6, 6 and 6 are erected on the bottom of the boss, a boss portion 7 is integrally formed at the center of the bottom side, and a female screw 8 is screwed on the inner circumference of the boss portion 7. It is carved. Further, on the side of the boss portion 7, a fitting cylindrical portion 9 is integrally formed in a cylindrical shape at a position eccentric from the center. The fitting cylindrical portion 9 is communicated with the water supply passage 3 and the water chamber. It has been communicated with 5. Further, a step portion 10 is formed in a step shape on the outer periphery of the main body portion 4 on the opening end side, and a packing groove 11 is formed in a recess shape inside thereof.

Next, FIG. 3 is a perspective view of the upper side of the seat plate 14, and FIG. 4 is a perspective view of the lower side of the seat plate 14. The seat plate 14 is formed in a dish shape having an open lower side, a flange 16 is integrally formed downward on the outer periphery of the plate portion 15, and a central hole 17 is formed at the center of the plate portion 15. In addition, an inner peripheral ring portion 18 is formed outside the center hole 17 so as to project upward. Similarly, an outer peripheral ring portion 19 is integrally formed on the outer peripheral side so as to project upward.
Further, a water passage hole 20 is formed in a penetrating manner on the lateral side eccentric from the center hole 17, and the outer periphery of the water passage hole 20 is a boss portion 21 protruding upward. Also, the plate part 1
5, a pair of circulation holes 22, 22 are formed at opposite positions. In addition, a pair of node grooves 23, 23 are formed in a recessed shape at opposite positions on the inner circumference of the collar portion 16.

In this seat plate 14, the inner peripheral ring portion 18 is fitted to the outer periphery of the lower end of the boss portion 7 of the main body portion 4, and the O-ring 84 is provided in the fitting cylindrical portion 9 of the main body portion 4. The boss portion 21 can be fitted in a watertight manner and fixedly attached to the main body portion 4. At this time, the outer peripheral ring portion 1
9 is brought into contact with the rib 6 of the main body portion 4, and the collar portion 16 is fixed to the inner peripheral surface of the water chamber 5 in an abutting manner. Since the boss portion 21 of the water passage hole 20 is eccentric from the center, the boss portion 21 in the watertightly fitted state with the fitting tubular portion 9 of the main body portion 4 is in a rotation-stopped state. The seat plate 14 is fixed to the main body 4 in a watertight manner while being prevented from rotating.

Next, FIG. 5 is a perspective view from the upper side of the switching valve 26. The switching valve 26 is formed in a bowl shape having an opening at the lower side, and the outer circumference of the bottom surface portion 27 is integrally downward. Part 2
8 is formed, and an O-ring interior hole 29 is formed at the center of the bottom surface portion 27. Further, an opening 33 is formed in a penetrating position at a laterally eccentric position of the O-ring interior hole 29, and the outer periphery of the opening 33 is a convex portion 34 that rises upward, and the outer periphery thereof has a concave shape. O-ring groove 36, and the outer periphery thereof is a convex portion 35 protruding upward. Further, an inclined surface 32 that is inclined downward is formed on the bottom surface portion 27 on the side opposite to the opening 33. Further, the opening 33 on the bottom surface 27 side of the outer peripheral portion 28.
Further, a pair of elastic plate portions 30, 30 is integrally formed in a position orthogonal to the inclined surface 32 so as to project outward, and the elastic plate portions 30, 30 further project outward at the center position. The moderation protrusions 31, 31 are integrally formed.

As shown in FIG. 1, a pair of protruding fitting portions 37 are formed on the inner peripheral surface of the switching valve 26 so as to be opposed to each other. The switching valve 26 is the seat plate 1
4 is attached to the seat plate 14 so as to be rotatable and slidable. The switching valve 26 is urgedly installed at the central position of the seat plate 14 due to the elastic force of the elastic plate portions 30 and 30 when the switching plates 26 are engaged with each other.

The opening 33 is formed with the same diameter at a position aligned with the water passage hole 20 of the seat plate 14, and an O-ring 85 is fitted into the O-ring groove 36 so that the opening 33 and the seat plate 14 are fitted together. The water holes 20 can communicate in a watertight manner. Since the protrusions 34 and 35 are formed on the outer periphery of the opening 33, the protrusions 34 and 3 are formed.
5 is in contact with the plate portion 15 of the seat plate 14, and the contact area between the switching valve 26 and the seat plate 14 is as small as possible. An O-ring 83 is fitted inside the O-ring inner hole 29, and the inner diameter of the O-ring inner hole 29 is larger than that of the central hole 17 of the seat plate 14 by the O-ring 83. Has been formed.

Next, FIG. 7 shows a perspective view from the lower surface side of the water spray plate 40, and FIG. 8 shows a perspective view from the upper surface side of the water spray plate 40. The water sprinkling plate 40 is formed in a dish shape having an upper opening by a surface plate part 41 and an outer peripheral part 42 of the outer circumference thereof. The surface plate part 41 has three rows of water sprinkling holes 45, 45, 45.
45 is formed by punching, and a pair of handle portions 44, 44 are integrally formed on the outer periphery of the outer peripheral portion 42 so as to project at opposite positions. In addition, a boss portion 43 is integrally formed in the central portion of the surface plate portion 41 so as to rise upward, and the boss portion 43 has a tubular shape, and a concave water chamber 53 is formed therein. A screw portion 50 formed of a female screw is formed on the peripheral surface. Further, eight inflow ports 49, 49, 49 are formed at equal intervals inside the screw part 50 in a penetrating manner, and these inflow ports 49, 49, 49 are spirally formed in the concave water chamber 53. It is formed in a substantially rhombic shape to allow water to flow in. Each of the inflow ports 49 communicates with each of the flowing water channels 51, and on the outside of the flowing water channels 51, a pair of fitting grooves 52, 52 are provided at opposing positions.
Is formed, and each of the fitting grooves 52 is formed in the switching valve 26.
The switching valve 26 and the sprinkler plate 40 are integrated by fitting in a pair of fitting portions 37, 37 protruding from the inner circumference of the. When the fitting portion 37 is fitted in the fitting groove 52, the flowing water passage 51 is formed inside the fitting portion 37. Further, the inside of each of the inlets 49 is an annular rib 48 protruding downward, and the water flowing into each of the concave water chambers 53 from each of the inlets 49 by the annular rib 48 is internally provided in the concave water chamber 53. Since the impeller 56 comes into contact with the side surface of the impeller 56, the impeller 56 can be rotated favorably without being pressed downward. Further, a protruding rib 47 (see FIG. 1) is formed on the outer periphery of the insertion hole 46 inside the annular rib 48 so as to project downward, and the protruding rib 47 causes the blade when the impeller 56 is lifted up. The contact area with the vehicle 56 is reduced.

FIG. 6 is a perspective view of the impeller 56, which is provided with eight blades 57, 57, 57 inclined at equal intervals.
A shaft hole 58 is formed in the center, and the outer periphery of the shaft hole 58 is an annular rib 59 protruding downward. Also, 4 on the bottom side
Cover plate 6 in a state of covering the blades 57, 57, 57, 57
0 is integrally formed.

Next, FIG. 9 is a perspective view from the lower surface side of the cap 70, and FIG. 10 is a perspective view from the upper surface side of the cap 70. This cap 70 corresponds to the sprinkler plate 40.
It is attached to the concave water chamber 53 of
A screw portion 77 that can be screwed into the screw portion 50 of the water spray plate 40 is formed on the outer periphery, and an O-ring groove 71 for fitting an O-ring 87 is formed in the lower portion of the screw portion 77. .. Further, a shaft portion 72 is integrally formed in a protruding shape at the central portion of the upper surface, and the base portion of the shaft portion 72 is a thick portion 75 that swells upward, and the thick portion 75 spreads in three directions at equal intervals. The thick portion 75 has four guide holes 76,
76, 76, 76 are formed, and the lower end of each guide hole 76 is a fountain hole 74, 74, 74, 74.
A slot 73 is formed on the lower surface side of the shaft portion 72 in the central portion of the lower surface of the cap 70 so that a driver or the like can be inserted therein. Since the base portion of the shaft portion 72 is thick, the slot groove 73 can be formed considerably deep. or,
The shaft portion 72 is loosely inserted into the shaft hole 58 of the impeller 56. When the impeller 56 is loosely inserted, an annular rib 59 is formed so as to project. The impeller 56 is rotatably attached to the outer circumference of the shaft portion 72 in a state where the impeller 56 is in contact with the impeller 56 and the contact area is reduced.

In FIG. 1, reference numeral 80 is a set screw, and the head 81 of the set screw 80 is fitted inside the protruding rib 47 of the water spray plate 40. At the time of this fitting, the set screw 80 is inserted. A corrugated washer 82 is interposed between the head 81 and the sprinkler plate 40. This corrugated washer 82 has a wavy upper and lower side surface shape, reduces a contact area between the head 81 and the water spray plate 40, and is attached to the main body portion 4 side in a state in which the water spray plate 40 can be freely rotated. It is a thing. The tip of the set screw 80 is screwed into the female screw 8 of the boss portion 7 of the main body portion 4, and the set screw 80 is the center hole 17 of the seat plate 14.
While passing through the O-ring interior hole 29 of the switching valve 26. By tightening the set screw 80, the switching valve 26 together with the water spray plate 40 can be rotatably attached to the seat plate 14 side in a pressing manner via the corrugated washer 82. Incidentally, reference numerals 84, 86 and 87 in the figure are O-rings for ensuring the water tightness between the respective members. Further, 88 is a U-shaped packing.

In this way, the switching valve 26 and the sprinkler plate 40 are rotatably attached to the seat plate 14 side via the set screw 80, and in this state, the concave water chamber 53 of the sprinkler plate 40 is attached.
The impeller 56 is assembled inside, and the cap 70 is covered on the outside to complete the assembly. The water spray plate 40 is clockwise or in the same plane with the main body 4 via the handle parts 44, 44. It can be rotated counterclockwise, and at the same time by rotating the water sprinkling plate 40, the switching valve 26 integrated by key connection also rotates, and the moderation protrusions 31, 31 are rotated.
Can be engaged with the node grooves 23, 23 and can be locked with a feeling of moderation at every 180 °. In a state where the opening 33 of the switching valve 26 is aligned with the water passage hole 20 of the seat plate 14, the hot water introduced from the water supply passage 3 passes through the water passage hole 20 and the opening 33 from the fitting tubular portion 9 and the flowing water passage 51. Passing through each of the inlets 49 and flowing into the concave water chamber 53, the inflowing hot and cold water contacts the side surface of the impeller 56 to rotate the impeller 56. Since the guide holes 76, 76, 76 of the cap 70 are intermittently opened / closed by the rotation of the impeller 56, shower water for massage is intermittently ejected from the fountain hole 74 of the cap 70 to obtain a massage shower effect. be able to.

On the other hand, from this state, by rotating the sprinkler plate 40 clockwise or counterclockwise by 180 °,
The inclined surface 32 of the switching valve 26 is aligned with the water passage hole 20 of the seat plate 14, and in this state, the hot water is smoothly introduced from the water passage hole 20 along the inclined surface 32 into the water chamber 5 outside the switching valve 26. Water flows in from the water chamber 5 to the water spray holes 4 of the water spray plate 40.
It passes through 5 and is ejected to the outside as normal shower water.

Therefore, in the shower head 1 of this embodiment, the water sprinkling plate 40 is rotated 180 ° continuously in the same plane in the clockwise or counterclockwise direction by 180 °.
The normal shower water and the shower water for massage can be continuously switched every time, and the operation is extremely easy, and the moderation projections 31, 31 are formed in the node grooves 23, 23 at every 180 °.
It is possible to operate the water sprinkling plate 40 by engaging with the inside of the sprinkler plate 40 with a good moderation feeling. Further, the corrugated washer 82 provides the pressing force and rotatability of the switching valve 26 against the seat plate 14.

A concave portion 2a is formed in an upward concave shape on the lower surface side of the base portion of the grip portion 2 with respect to the main body portion 4. The concave portion 2a is sprinkled by hanging a finger or the like on the handle portion 44. It is formed in order to improve the operability so as not to get in the way when the plate 40 is rotated. By forming the recess 2a in this way, the usability becomes good and the overall shape is made compact. can do.

The circulation holes 22 are formed in order to improve the circulation of water in the water chambers 5 on the upper and lower surfaces of the seat plate 14, and the water chambers 5 on the upper surface of the seat plate 14 are formed. The dead water does not occur inside, and the water in the water chamber 5 is circulated well, and hygienic water is ejected as shower water.

Further, as described above, when the impeller 56 rotates in the concave water chamber 53, the annular rib 59 of the impeller 56 contacts the cap 70 and the contact area is small, so that the impeller 5 is small.
The rotation of 6 is performed smoothly. Even if the annular rib 59 is formed on the cap 70 side, the same effect can be obtained. Since the protruding rib 47 is formed even when the impeller 56 is lifted up at a higher speed, the contact area with the impeller 56 is reduced by the protruding rib 47, and the impeller 56 rotates smoothly. To be done.
Further, since the annular rib 48 is formed, the concave water chamber 53
The water flow that flows into the inside can satisfactorily come into contact with the side surface side of the impeller 56 to rotate the impeller 56 without pressing the impeller 56 downward, and further, each inflow port 49 has a spiral shape inside the concave water chamber 53. Since the water flow can be supplied, the impeller 56 can rotate more smoothly.

[0022]

The multi-function shower head of the present invention has a main body having a water chamber communicating with the water supply passage, and a discharge end of the main body rotatably covered with a central portion. A water spray plate having a concave water chamber and a large number of water spray holes in the outer peripheral portion, a sheet plate having a water passage hole at a position eccentric from the center, which is fixed in the water chamber inside the water spray plate in a partition shape, A switching valve that is in sliding contact with the seat plate and that can be aligned with the water passage hole and that has an opening that communicates with the concave water chamber, and that is fixed to the outer periphery of the concave water chamber of the water spray plate in an encircling manner. Since the cap is provided with the cap having the fountain hole that is provided on the discharge side of the water chamber, there is an effect that it can be manufactured in a small size with a small number of parts. Further, since the seat plate is made of a material having high wear resistance and is formed separately from the main body part, the sliding part can be concentrated on the seat plate part, and the multifunctional product has durability. It can be a shower head. Further, since the sheet plate has the circulation holes for improving the water metabolism in the water chamber, hygienic shower water can be obtained without causing dead water in the water chamber. Further, an O-ring surrounded by the seat plate, the switching valve, and the sprinkler plate is provided on the outer periphery of a set screw that is inserted into the central portion of the seat plate, the switching valve, and the sprinkler plate and screwed into the main body. A storage space is formed, and the structure can be made compact accordingly. Further, a fitting portion capable of key-connecting the water spray plate is provided on the inner peripheral surface of the switching valve so as to form a flowing water passage communicating the opening and the concave water chamber on the inner surface of the fitting portion. By doing so, the water sprinkling plate and the switching valve can be integrated by key connection, and the water flow passage can be compactly formed inside the fitting portion to have a small size. Further, by fitting the boss portion of the water passage hole formed on the seat plate to the main body portion, the water passage hole is located at a position eccentric from the center, and the boss portion of the water passage hole is attached to the main body portion. By fitting them, the seat plate can be fixed to the main body in a state where the seat plate is properly stopped. Further, an inclined surface that guides the water flow that has passed through the water passage holes of the seat plate to the water spray holes of the water spray plate is formed on the outer periphery of the switching valve, so that the water spray hole side can be smoothly moved along the inclined surface. Water can be directed to. or,
On the sliding contact surface of the switching valve with the seat plate, by forming a convex portion for reducing the contact resistance,
Due to the convex portion, the contact resistance between the switching valve and the seat plate is significantly reduced, wear is reduced, and a durable shower head can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram around a main body of a shower head.

FIG. 2 is a partially cutaway perspective view showing a state in which a main body is directed upward.

FIG. 3 is a perspective configuration view from the upper surface side of the seat plate.

FIG. 4 is a perspective configuration view from the lower surface side of the seat plate.

FIG. 5 is a perspective configuration diagram of an upper surface side of a switching valve.

FIG. 6 is a perspective configuration view from the lower surface side of the impeller.

FIG. 7 is a perspective configuration view from the lower surface side of the water spray plate.

FIG. 8 is a perspective configuration view from the upper surface side of the water spray plate.

FIG. 9 is a perspective configuration view from the lower surface side of the cap.

FIG. 10 is a perspective configuration view from the upper surface side of the cap.

[Explanation of symbols]

 1 Shower Head 2 Grip Hand 2a Recess 3 Water Supply Channel 4 Main Body 5 Water Chamber 7 Boss 9 Fitting Cylinder 14 Seat Plate 17 Center Hole 18 Inner Ring Ring 19 Outer Ring 20 Water Circulation 22 Circulation Hole 23 Section Groove 26 Switching valve 29 O-ring inner hole 30 Elastic plate part 31 Moderation protrusion 32 Sloping surface 33 Opening 34, 35 Convex part 36 O-ring groove 40 Water sprinkler plate 43 Boss part 44 Handle part 45 Water sprinkling hole 46 Insertion hole 47 Projecting rib 48 Ring Rib 49 Inlet 50 Screw part 51 Flow channel 52 Fitting groove 53 Concave water chamber 56 Impeller 57 Blade 58 Shaft hole 59 Annular rib 70 Cap 72 Shaft part 73 Slot groove 74 Fountain hole 75 Thick part 76 Guide hole 80 Stop Screw 81 Head 82 Corrugated washer 83, 84, 85, 86, 87 O-ring 88 U-shaped packing

Claims (8)

[Claims] 1. A main body having a water chamber communicating with a water supply passage formed therein, a discharge end of the main body being rotatably covered, a concave water chamber in the center, and a large number in the outer periphery. A water sprinkling plate having a water sprinkling hole, a seat plate fixed inside the water sprinkling plate in a partition shape and having a water passing hole at a position eccentric from the center, and the water passing hole slidably contacting the seat plate. A switching valve that can be aligned with the concave water chamber and has an opening that communicates with the concave water chamber, and is fixed to the outer periphery of the concave water chamber of the sprinkler plate so as to surround the outer periphery of the concave water chamber; A multi-function shower head comprising a cap having a fountain hole. 2. The seat plate is made of a material having high wear resistance and is formed separately from the main body.
Multifunctional shower head described in. 3. The multi-function shower head according to claim 2, wherein the seat plate is formed with a circulation hole for improving water flow metabolism in the water chamber. 4. The seat plate, the switching valve, and the water spray plate are surrounded by the seat plate, the switching valve, and the water spray plate on the outer periphery of a set screw that is inserted into the central portion of the water spray plate and screwed into the main body. The multifunctional showerhead according to claim 1, wherein the O-ring storage space is formed. 5. A fitting part which can key-connect the water spray plate is provided on an inner peripheral surface of the switching valve, and an inner surface of the fitting part is provided with:
The multi-function shower head according to claim 1, wherein a flowing water channel that connects the opening and the concave water chamber is formed. 6. A boss portion of a water passage hole formed in the seat plate is fitted to the main body portion, and the seat plate is fixed to the main body portion in a rotation-stopped state. Item 3. The multifunctional showerhead according to Item 2. 7. The inclined surface for guiding the water flow passing through the water passage hole of the seat plate to the water sprinkle hole of the water sprinkler plate is formed on the outer periphery of the switching valve. Multifunction shower head. 8. The multifunctional showerhead according to claim 1, wherein a convex portion for reducing contact resistance is formed on a sliding contact surface of the switching valve with the seat plate.