Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2002-09-27
2004-07-27
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
Reexamination Certificate
active
06766827
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is related to a core shaft of the control stick of a vertical type faucet, comprising a faucet body, a locking ring unit, a valve case, a valve, a core shaft of the control stick, a stick fixing mount, a support base, a switch mount and a faucet handle wherein said core shaft of the control stick joined to said stick fixing mount, said valve, and said support base respectively, is located onto said switch mount with an arc actuation block of said core shaft thereof inserted into a link activation cavity of said switch mount thereof, and encased by said valve case therein. Said valve case thereof is then adapted to the faucet body via said locking ring unit, and said core shaft thereof is screw joined to faucet handle via an externally threaded upper section thereof. Via said core shaft thereof to activate said switch mount, the faucet handle can easily and accurately adjust the amount and temperature of cold and hot water discharged for use.
Please refer to
FIG. 1. A
conventional the control stick of a faucet is mainly made up of a faucet body
10
, a locking ring
13
, a valve case
20
, a valve
21
, a control stick
22
, a rotary positioning means
23
, a switch mount
24
, and a faucet handle
30
. Said faucet body
10
is provided with a receiving cavity
11
with an internally threaded locking upper section
12
disposed at the rear center thereof to be communicated with internal water inlet and outlet passages thereof. Said locking ring
13
has a locking hole
131
disposed at the center thereof and externally threaded locking section
132
disposed at the lower outer periphery thereof. Said valve case
20
, stepwise, is provided with a valve chamber
201
disposed at the inner side thereof and two limiting blocks
202
disposed at the top of said valve chamber
201
thereof. Said valve
21
is equipped with a through hole
211
disposed at the center thereof, two opposite vertical grooves
215
disposed at the inner periphery thereof, an upper arc abutment facet
212
extending at the upper inner section thereof, an upper tapered recess
213
extending at top of said upper arc abutment facet
212
thereof, and a positioning block
214
extending from the bottom at the outer periphery thereof
Said control stick
22
has a small actuation ball
221
disposed at the bottom thereof, a large rotary ball
223
disposed at the lower section thereof, and a link section
222
joining said small actuation ball
221
and said large rotary ball
223
thereof. A post
224
is extending at both ends at the middle of said large rotary ball
223
thereof, and a main shaft body
225
is extending at top of said large rotary ball
223
with an externally threaded upper section
226
disposed at the end thereof Said rotary positioning means
23
, hollow-centered with an outer periphery smaller in diameter than the through hole
211
of said valve
21
, is provided with a lower arc abutment facet
231
, and a lower tapered recess
232
extending at the bottom of said lower arc abutment facet
231
thereof. Said switch mount
24
is made up of an upper switch valve
241
and a lower switch valve
242
wherein said upper switch valve
241
having a link activation cavity
243
disposed at the top thereof can be horizontally moved and rotated on said lower switch valve
242
for the purposes of switching the discharge of hot or cold water thereof. Said faucet handle
30
, vertical-typed, has a round-headed bottom
31
and a turning part
32
extending at the upper section thereof.
Please refer to
FIGS. 2
,
3
. In assembly, said control stick
22
is led through the through hole
211
and joined to said valve
21
from the bottom thereof with said main shaft body
225
extending out at the top thereof. The upper edge of said large rotary ball
223
is abutted against the upper abutment facet
212
thereof, and both ends of said post
224
thereof is adapted to said opposite vertical grooves
215
thereof. Said rotary positioning means
23
is then adapted to the through hole
211
of said valve from the bottom thereof with said link section
222
thereof received at the inner side of said lower tapered recess
232
thereof and said small actuation ball
221
extending out of said rotary positioning means
23
at the bottom thereof. The lower edge of said large rotary ball
223
is abutted against the lower abutment facet
231
thereof, securing locating said rotary positioning means
23
at the inner side of said valve
21
via said through hole
211
thereof. Said valve
21
is then located onto said switch mount
24
with said small actuation ball
221
inserted into said link activation cavity
243
thereof. Said valve case
20
is applied to encase said valve
21
and said switch mount
24
therein with the positioning block
214
of said valve
21
located at the space defined by the two limiting blocks
202
of said valve case thereof for limiting the location and preventing the rotation of said valve
21
thereof. The upper section of said main shaft body
225
thereof is extended out at the top of said valve case
20
, and the lower section of said valve case
20
is engaged with the lower outer periphery of said switch mount
24
to complete a switch valve unit which is then adapted to the receiving cavity
11
of said faucet body
40
thereof and screw joined thereto via said locking ring
13
. The upper section of said valve
21
is fixedly located at the locking hole
131
of said locking ring
13
thereof and said main shaft body
225
extending out at the top of said valve
21
is screw joined to said faucet handle
30
via said externally threaded upper section
226
thereof to complete the assembly thereof.
Please refer to FIG.
2
. In operation, the turning part
32
of said faucet handle
30
is switched either to the left or right to activate the small actuation ball
221
of said control stick
22
. Said upper switch valve
241
activated by said small actuation ball
221
to move therewith will slide to either sides thereof for the water inlet to the faucet body
10
thereof to be channeled by said lower switch valve
242
for discharge of cold or hot water. To adjust the temperature of water, said faucet handle
30
is first bent to one side for water to come out and then rotate in either direction to mix the cold and hot water into a proper temperature for use.
There are some drawbacks to such conventional control stick of a faucet. First, said faucet handle
30
is rotated for water to come out of said faucet body
10
, and said control stick
22
is switched at either direction to mix said cold and hot water into a proper temperature for use, which is hard to reach in a short period of time and may cause quite a waste of water. Second, it is not only hard to obtain the proper water temperature for use, but also quite easy to get burned by hot water while said control stick is carelessly switched to hot water at a sudden.
SUMMARY OF THE PRESENT INVENTION
It is, therefore, the primary purpose of the present invention to provide a core shaft of the control stick of a vertical type faucet wherein via a core shaft of the control stick joined to a stick fixing mount and a support base, and located onto a switch mount, a faucet handle linked to said core shaft thereof can accurately control the amount and temperature of cold and hot water discharged for use.
It is, therefore, the second purpose of the present invention to provide a core shaft of the control stick of a vertical type faucet wherein said faucet handle facilitated by said core shaft, stick fixing mount, and support base thereof can easily and quickly adjust cold and hot water into a proper temperature for use without wasting any water.
It is, therefore, the third purpose of the present invention to provide a core shaft of the control stick of a vertical type faucet wherein via said core shaft of the control stick to activate said switch mount therewith, said faucet handle can accurately and quickly mix said cold and hot water into a desirable temperature wi
Bacon & Thomas PLLC
Fox John
Kuching International Inc.
LandOfFree
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