Fluid handling – Systems – Flow path with serial valves and/or closures
Reexamination Certificate
2002-01-14
2003-05-06
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Flow path with serial valves and/or closures
C137S614190
Reexamination Certificate
active
06557585
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The present invention relates to a water-supply valve apparatus having a dual blocking structure for a hot and cold water purifier, more particularly to a safety water-supply valve apparatus capable of preventing a user's hand from getting bunt accidentally and water from leaking unnecessarily due to careless handling.
(2) Description of the Related Arts
Recently, a hot and cold water purifier is widely used to serves fresh water, which purifies contaminated water with filters and cools or heats the purified water.
Generally, a hot and cold water purifier includes an intake lever for adjusting the quantity of water according to a user's handling. By handling the intake lever, an on-off rod is open or closed, so that hot water or cold water is discharged from the hot and cold water purifier.
In the conventional water purifier, even if a minute touch is applied to the intake lever, a discharge tube may be opened easily, so that an unnecessary water leakage may occurs. Particularly, a child or the old and the weak may be burnt his hand on the hot water accidentally discharged from the water purifier.
In order to solve this problem, Korean Utility Model Publication No. 0178030 discloses a water-supply lever safety apparatus for a hot and cold water purifier, as illustrated
FIGS. 1
,
2
and
3
. This water-supply lever safety apparatus comprises a first on-off rod
4
and a second on-off rod
5
, which are arranged in an on-off part
3
for connecting a supply tube
1
and a discharge tube
2
as a body, and an intake lever
6
and a pushing means
7
for controlling the first on-off rod
4
and the second on-off rod
5
.
The supply tube
1
is tubular structure such as a cylinder and includes a connecting means
11
formed as a female screw therein, as shown FIG.
3
.
The discharge tube
2
comprises a globular member
21
such as a sphere and a discharge outlet connecting with the globular member
21
, shown in
FIGS. 1 and 2
. The globular member
21
and the discharge outlet are connected to be able to rotate, so that a user can change selectively the discharging direction of hot water or cold water, as shown FIG.
4
.
The on-off part
3
is a body for forming a supply valve, and comprises an inlet
31
for connecting with the supply tube
1
in the back side thereof, an outlet
32
for connecting with the discharge outlet
32
in the bottom side thereof, and mounting holes
33
,
34
which are bored through the upper side and the front side thereof.
Further, the first on-off rod
4
is a shaft structure such as a stick, a soft sealing member
41
is formed on the bottom side thereof, and a soft sealing case
42
is arranged on the upper side thereof, as shown
FIG. 1
a.
In the soft sealing case
42
, a spring
43
is wounded on the first on-off rod
4
. As shown
FIGS. 1
to
3
, a hinge hole P is arranged on the upper side of the first on-off rod
4
.
Further, the second on-off rod
5
is a shaft structure as a stick, a fixing means
51
having a male screw
511
and a through-hole
512
is coupled in one side thereof, and a spring
52
is wounded on the fixing means
51
. The side surface of the spring
52
is abutted on a guide plate
53
having a through-hole
531
, and a soft sealing member
54
are formed in succession. Separating from the soft sealing member
54
at a distance, a carrying guide hole
55
of ring shape is arranged on the other side of the second on-off rod
5
, as shown FIG.
3
.
Further, the intake lever
6
is an ordinary lever structure for rotating by a predetermined range. On the upper side of the intake lever
6
, as shown
FIG. 2
, an operation member
61
of a quadrangular shape is formed as a body.
Further, the pushing means
7
, as shown
FIGS. 1
to
3
, has a open space in one side thereof, and a guide hole
71
having a latch
711
is formed on the inside of the open space. A button cap
72
having a guide jaw is coupled in the front side of the open space, and a mobile member
73
of stick shape is arranged in the guide hole
71
.
However, there are several problems in the above safety water-supply lever apparatus as follows:
Firstly, in order to discharge water from the water purifier, a user have to push a lever with one hand holding a cup and to press a button of the water purifier with the other hand. Therefore, continuously requiring two hands for discharging water, it is inconvenient for using.
Secondly, in the case that hot water is discharged for a long time, the heat of the inside is transmitted to the button, so that pushing the button continuously is difficult for the user.
SUMMARY OF THE INVENTION
Accordingly, it is an object the present invention to provide a safety supply-valve apparatus for a hot and cold water purifier, which is able to prevent hot water from discharging accidentally and water from leaking unnecessarily due to careless handling.
To achieve the above-mentioned objective, according to a aspect of the present invention, there is provided a safety supply-valve apparatus comprising a first on-off rod for opening and closing a discharge outlet with a intake lever, and a second on-off rod for turning on and off the flow of water from a supply-tube by a pushing means, regardless of the operation of the first on-off rod
4
. The first on-off rod comprises a stopper having a T-shaped hole arranged at the position where the first on-off rod is at right angles to the second on-off rod. The second on-off rod comprises an elastic hook passing through the horizontal part of the T-shaped hole and being hooked on the vertical part of the T-shaped hole; and an anti-rotation wing for preventing the second on-off rod from rotating. The anti-rotation wing is inserted into an anti-rotation hole formed in a guide hole of the pushing means.
Therefore, according to the safety supply-valve apparatus related to the present invention, by pushing a lever with one hand taking a cup and pushing a button with the other hand, even if the pushed button is released, water is discharged continuously as long as the lever is pushed. When the water discharging is completed (that is, when the opening operation of the lever is released), the pushing of the button is released automatically. Accordingly, it is possible to prevent a user's hand from getting bunt accidentally and water from leaking unnecessarily.
REFERENCES:
patent: 2147084 (1939-02-01), Bouchard
patent: 4471807 (1984-09-01), Lucking et al.
Jein Industries Co., Ltd.
Jenkens & Gilchrist P.C.
Lee Kevin
LandOfFree
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