Note: Descriptions are shown in the official language in which they were submitted.
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SHOWER HEAD
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a shower head which supplies water with
small flowing amount and high efficiency.
Description of the Prior Art
Conventional shower head includes an upper disc with an inlet and a lower
disc connected to a lower side of the upper disc and having a plurality of
outlets, a
hollow flowing space between the upper and the lower discs, such that after
water
flows into the flowing space from the inlet of the upper disc, the water will
spray
outward from the outlets. However, such a convectional shower head has the
following disadvantages:
The water is not limited in the hollow flowing space but flowing freely to
lose
its flowing energy and pressure, thereby lowering spraying efficiency.
Besides, the
watering amounts of the outlets are not equal as the watering amount is less
than
2.5GPM, and the shower head does not face downward but being limited at a
predetermined angle to reduce flowing energy more greatly.
In addition, a conventional shower head with a larger size includes a hollow
flowing space, therefore its lower disc bears more pressure to deform the
shower
head to generate a water leak.
CN Pat. No. ZL200580000294.7 discloses that an improved shower head
includes an upper and a lower discs, and a watering member between the upper
and
the lower discs to separate a watering passage and a non-watering passage
apart so
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as to guide waterflow flow toward a plurality of outlets, thus lowering
flowing
pressure. Nevertheless, the shower head includes a plurality of channels with
multiple outlets, accordingly when water flows into the channels from inlets
of the
upper disc and is guided to the channels, the curved guiding way will result
in a
lower flowing energy to reduce watering amount. Furthermore, the watering
passage
includes a number of sector areas, but the watering amount of the sector areas
are
smaller than that of the watering passage, and after the water which flows
from the
inlet of the upper disc flows into the watering passage, the flowing direction
will
converted into a horizontal direction from a vertical direction to lower
flowing
energy and pressure, thereby reducing spraying efficiency, especially as the
flowing
amount is less than 2.5GPM.
The present invention has arisen to mitigate and/or obviate the
afore-described disadvantages.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a shower head which
is capable of overcoming the shortcomings of the conventional shower head.
Another object of the present invention is to provide a shower head which
supplies water with small flowing amount and high efficiency.
A shower head in accordance with a preferred embodiment of the present
:20 invention comprises:
an upper body including a tubular portion, a disc portion, a connection
between the tubular portion and the disc portion, wherein the tubular portion
includes a passage formed therein, the connection includes an arcuately-curved
wall
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extending radially from a lower side of the passage and having a plurality of
impellers extending downward and radially from the arcuately-curved wall and
spaced apart from each other, and each impeller includes an arc-shaped biasing
end
mounted on an inner side thereof and extending downward to define a fixing
space,
the disc portion includes an upper surface fixed on a bottom end thereof;
a lower body connected to a lower side of the upper body and including a
concave lower wall having a conical guiding member extending upward from a
central portion of the lower wall and having an arcuate peripheral side
extending
downward, wherein at least one segment of the peripheral side is received in
the
fixing space of the upper body to abut against the biasing ends of the
impellers so
that the peripheral side defines an arc-shaped offset passage which extends
downward between the arcuately-curved wall and any two abutting impellers; the
lower wall engages with the upper body to define a plurality of radially
extending
channels to communicate with the arc-shaped offset passage; the lower wall
includes
a number of outlets to spray water arranged along the channels;
wherein between the upper surface of the upper body and the lower wall of
the lower body are defined a number of triangle first abutting portions so
that
between any two first abutting portions is defined the channel;
wherein a watering path on an internal side of the first abutting portion
leaves
the lower wall a certain distance away from bottom walls of the impellers so
as to
form a first passageway, such that waterflow before being guided to the
channels is
adjusted its flowing amount equally;
wherein between the upper surface of the upper body and the lower wall of
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the lower body is defined an annular second abutting portion such that a
second
passageway is defined between the second abutting portion and the first
abutting
portions, so that the waterflow flows through the channels and into the second
passageway to adjust and generate equal flowing effect;
wherein the upper surface of the upper body includes an upper contact rim
formed around an outer side thereof, and the lower wall of the lower body
includes
an abutting protrusion formed thereon to engage with the upper contact rim of
the
upper surface;
wherein the width and height of the channel becomes reduced outward so that
a cross-sectional area of waterflow become small outward to enhance flowing
speed;
wherein a cross-sectional area of waterflow of an inlet of each channel is 1.5
times larger than that of an export thereof;
wherein the upper and the lower bodies are screwed together on at least one
selected first abutting portion by using a first bolt;
wherein a top end of the guiding member extends out of the impellers to insert
to the tubular portion of the upper body and to define five offset passages;
wherein the lower body includes a plurality of positioning bores disposed
thereon to receive a number of nozzles which are also fitted to the outlets;
wherein the shower head further comprises an annular lid located under the
lower body and including a plurality of second through holes to receive the
nozzles;
wherein the shower head further comprises a lower cover including an
opening attached on a top wall thereof and having a first peripheral tab to
retain the
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lower cover between the lower body and the annular lid;
wherein the shower head further comprises a coupling member including first
outer threads disposed on a bottom end thereof to screw with the first inner
threads
of the tubular portion of the upper body, and a third passageway arranged
therein to
communicate with the passage of the tubular portion;
wherein the third passageway of the coupling member includes a downward
reduced first section proximate to a top end thereof;
wherein the first section also includes a sleeve retained therein;
wherein the shower head further comprises an upper cover including an intake
disposed on a top wall thereof and having a second peripheral tab to retain
the upper
cover between the coupling member and the upper body, and a bottom wall of the
upper cover extends to a periphery of the upper body;
wherein the shower head further comprises a spheral knob attached on a
bottom end of the coupling member and having a fourth passageway to
communicate
with a top end of the coupling member so that the coupling member rotates
around
the spheral knob to adjust water spraying angle;
wherein the shower head further comprises a casing including second inner
threads to screw with a top end of the upper cover, an upper washer located in
the
top end of the casing and including a first arcuately concave surface, a lower
washer
located in the top end of the upper cover and including a second arcuately
concave
surface.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view showing the assembly of a shower head in
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accordance with a preferred embodiment of the present invention;
Fig. 2 is a perspective view showing the exploded components of the shower
head in accordance with the preferred embodiment of the present invention;
Fig. 3 is another perspective view showing the exploded components of the
shower head in accordance with the preferred embodiment of the present
invention;
Fig. 4 is a cross sectional view showing the assembly of the shower head in
accordance with the preferred embodiment of the present invention;
Fig. 5 is a cross sectional view showing the assembly of an upper and a lower
bodies of the shower head in accordance with the preferred embodiment of the
present invention;
Fig. 6 is a cross sectional view of an upper body of the shower head in
accordance with the preferred embodiment of the present invention;
Fig. 7 is a perspective view of the upper body of the shower head in
accordance with the preferred embodiment of the present invention;
Fig. 8 is a top plan view of the upper body of the shower head in accordance
with the preferred embodiment of the present invention;
Fig. 9 is a bottom plan view of the upper body of the shower head in
accordance with the preferred embodiment of the present invention;
Fig. 10 is a cross sectional of the lower body of the shower head in
accordance with the preferred embodiment of the present invention;
Fig. 11 is a top plan view of the lower body of the shower head in accordance
with the preferred embodiment of the present invention;
Fig_ 12 is a perspective view of the lower body of the shower head in
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accordance with the preferred embodiment of the present invention;
Fig. 13 is a top plan view of the upper body and a guiding member of the
lower body in accordance with the preferred embodiment of the present
invention;
Fig. 14 is a cross sectional view showing the operation of the shower head in
accordance with the preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be clearer from the following description when
viewed together with the accompanying drawings, which show, for purpose of
illustrations only, the preferred embodiment in accordance with the present
invention.
Referring to Figs. 1-4, a shower head according to a preferred embodiment of
the present invention comprises an upper body 10, a lower body 20, an annular
lid
30, a lower cover 40, a coupling member 50, an upper cover 60, a casing 70, an
upper washer 81, a lower washer 82, and a spherical connecter 90.
The upper body 10, as shown in Figs. 5-9, includes a tubular portion 11, a
disc
portion 12, a connection 13 between the tubular portion 11 and the disc
portion 12,
wherein the tubular portion 11 includes a passage 111 formed therein and
having
first inner threads 112 arranged on a top end of the passage 111, the
connection 13
includes an arcuately-curved wall 131 extending radially from a lower side of
the
passage 111 and having a plurality of impellers 132 extending downward and
radially from the arcuately-curved wall 131 and spaced apart from each other.
In this
embodiment of the present invention, there are five impellers 132 extending
downward and radially from the arcuately-curved wall 131 and spaced apart from
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each other, and each impeller 132 includes an arc-shaped biasing end 133
mounted
on an inner side thereof and extending downward to define a fixing space 134
between the five impellers 132. The disc portion 12 includes an upper surface
121
fixed on a bottom end thereof and having a number of triangle contacting
blocks 122
arranged around the upper surface 121, a tip end of the contacting block 122
faces
inward and is proximate to the arcuately-curved wall 131. In this embodiment
of the
present invention, there are fifteen triangle contacting blocks 122 arranged
around
the upper surface 121 and spaced apart from each other equally, wherein the
tip ends
of the five contacting blocks 122 connect with the five impellers 132, and the
heights
of the contacting blocks 122 are larger than bottom walls of the impellers
132. The
upper surface 121 includes an upper contact rim 123 formed around an outer
side
thereof. The disc portion 12 includes seven first through holes 124 located on
seven
of the contacting blocks 122, each first through hole 124 is used to screw a
first bolt
125 therein.
The lower body 20, as illustrated in Figs. 10-13, is formed in a disc shape
and
connect to a lower side of the upper body 10, and includes a concave lower
wall 21
fixed on a top surface thereof. The lower wall 21 includes a conical guiding
member
22 extending upward from a central portion thereof and having an arcuate
peripheral
side 221 extending downward, at least one segment of the peripheral side 221
is
received in the fixing space 134 to abut against the biasing ends 133 of the
impellers
132 so that the peripheral side 221 defines an arc-shaped offset passage 23
which
extends downward between the arcuately-curved wall 131 and any two abutting
impellers 132; a top end of the guiding member 22 extends out of the impellers
132
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to insert to the tubular portion 11 of the upper body 10 and to define five
offset
passages 23. The lower wall 21 includes a plurality of triangle engaging
projections
24 arranged around the guiding member 22 to contact with the contacting blocks
122
so that a number of triangle first abutting portions a are formed between the
upper
surface 121 and the lower wall 21, hence between any two first abutting
portions a is
defined a radially extending channel b; In this embodiment of the present
invention,
there are fifteen channels b defined between the first abutting portions a,
and the
width and height of the channel b becomes reduced outward so that a cross-
sectional
area of waterflow become small outward to enhance flowing speed, wherein a
cross-sectional area of waterflow of an inlet of each channel b is 1.5 times
larger
than that of an export thereof. Besides, a watering path on an internal side
of the first
abutting portion a leaves the lower wall 21 a certain distance away from
bottom
walls of the impellers 132 so as to form a first passageway 25 to communicate
with
the offset passages 23 and the channels b. Between the two impellers 132 is
defined
a sector area having one of the offset passages 23 and three of the channels b
so that
the waterflow flowing through the offset passage 23 is guided to the three
channels b
of the sector area, and the waterflow before being guided to the channels b is
adjusted its flowing amount equally. The lower wall 21 includes an abutting
protrusion 26 formed thereon to space the engaging projection 24 apart from a
certain distance so as to engage with the upper contact rim 123 of the upper
surface
121, hence between the upper surface 121 and the lower wall 21 is defined an
annular second abutting portion c such that a second passageway 27 is defined
between the second abutting portion c and the first abutting portions a, so
that the
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waterflow flows through the channels b and into the second passageway 27 to
adjust
and generate equal flowing effect. The lower wall 21 includes a number of
outlets 28
to spray water arranged in the first passageway 25, the channels b and the
second
passageway 27 individually. In the embodiment of the present invention, the
lower
body 20 includes a plurality of positioning bores 281 disposed thereon to
receive a
number of nozzles 282 which are also fitted to the outlets 28, wherein the
first
passageway 25 includes ten outlets 28 mounted therein, five of the outlets 28
are
located under the impeller 132 to pass across two abutting sector areas, and
between
each channel b and a connecting portion of the first passageway 25 and the
second
passageway 27 are provided another two or three outlets 28. Also, each sector
area
includes eight outlets 28 to form a spraying module, wherein a distance from a
center of each outlet 28 of the same module to a central point of the lower
wall 21 is
not equal so as to generate an equal spraying effect. Seven engaging
projections 24
are arranged on the lower body 20 and each includes a first screw aperture 29
disposed therein to screw with the first bolt 125 so that the lower body 20 is
coupled
to the lower side of the upper body 10. The lower body 20 includes a second
screw
aperture 291 mounted on a bottom surface thereof relative to a bottom of the
guiding
member 22. A diameter of the outlet 28 is around 0.8mm, and the nozzle 282
includes a flowing way with a predetermined length secured close to its
opening to
spray the water strongly.
The annular lid 30 is located under the lower body 20 and includes a plurality
of second through holes 31 to receive the nozzles 282, and includes an orifice
32
fixed on a central portion thereof to screw with the second screw aperture 291
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lower body 20 by means of a second bolt 33, hence the annular lid 30 is
secured to
the lower body 20.
The lower cover 40 includes an opening 41 attached on a top wall thereof and
having a first peripheral tab 411 to retain the lower cover 40 between the
lower body
20 and the annular lid 30 and to protect the outlets 28.
The coupling member 50 includes first outer threads 51 disposed on a bottom
end thereof to screw with the first inner threads 112 of the tubular portion
11 of the
upper body 10, a third passageway 52 arranged therein to communicate with the
passage 111 of the tubular portion 11, wherein the third passageway 52
includes a
downward reduced first section 50a proximate to a top end thereof to
concentrate
waterflow and enhance water pressure. The first section 50a also includes a
sleeve
53 retained therein or is integrally formed from the third passageway 52 of
the
coupling member 50. In addition, the coupling member 50 further includes
second
outer threads 54 arranged on a top end thereof.
The upper cover 60 includes an intake 61 disposed on a top wall thereof and
having a second peripheral tab 611 to retain the upper cover 60 between the
coupling
member 50 and the upper body 20, a bottom wall of the upper cover 60 contacts
with
a top surface of the lower cover 40 to be held by a user and to obtain
protective
effect.
:20 The casing 70 includes second inner threads 71 to screw with a top end of
the
upper cover 60.
The upper washer 81 is located in the top end of the casing 70 and includes a
first arcuately concave surface 811.
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The lower washer 82 is located in the top end of the upper cover 60 and
includes a second arcuately concave surface 821.
The connector 90 includes a spheral knob 91 attached on a bottom end thereof
to be limited between the first arcuately concave surface 811 of the upper
washer 81
and the second arcuately concave surface 821 of the lower washer 82 so that
the
coupling member 50 rotates around the connector 90, and the connector 90 also
includes a fourth passageway 92 mounted therein to communicate with the third
passageway 52 of the coupling member 50, a top end of the connector 90 is used
to
couple with a water feeding pipe (not shown) to supply water.
As shown in Figs. 1, 4, and 14, the shower head of the present invention is
used to coupled to the water feeding pipe of a shower room, therefore when a
watering switch is turned on, the waterflow flows into the fourth passageway
92 of
the connector 90 along the water feeding pipe and then flows through the third
passageway 52 of the coupling member 50. During this water flowing period, the
waterflow is adjusted by the downward reduced section 50a of the coupling
member
50 so that the adjusted waterflow is guided to flow into a central portion of
the
passage 111 of the upper body 10 equally. Thereafter, the water in the passage
111
flows toward a periphery of the passage 111 and then flows to the offset
passages 23
evenly, hence the flowing direction of water is converted into a horizontal
direction
form the vertical direction by using the offset passages 23 to reduce the
energy loss
of water, and the water flows through the first passageway 25 radially and
further
flows into the three channels b in the sector area so as to reach the second
passageway 27, thus filling water with the first passageway 25, the channels
b, and
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the second passageway 27 to spray water from the outlets 28 of the nozzles 282
of
the second passageway 27 equally and efficiently.
With reference to Figs. 1 and 4, the coupling member 50 allows to be adjusted
to any desired angle so as to control the watering angles of the outlets 28,
wherein
when the nozzles 28 are set at a certain angle, the waterflow will be affected
by
gravity, especially the adjusted angles become inclined greatly. By using the
first
passageway 25, the waterflow in the first passageway 25 adjusts its amount
before
flowing into the channels b so as to ensure the nozzles 282 to spray water
evenly. By
ways of the second passageway 27, the waterflow passing through the channels b
allows to adjust its flowing amount in the second passageway 27 so as to
ensure the
nozzles 282 of the second passageway 27 and the channels b to spray water
equally.
While we have shown and described various embodiments in accordance with
the present invention, it is clear to those skilled in the art that further
embodiments
may be made without departing from the scope of the present invention.
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