Note: Descriptions are shown in the official language in which they were submitted.
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POP-UP DRAIN STOPPER LINKAGE ASSEMBLY
BACKGROUND OF THE INVENTION
Field of Invention
The present invention relates to a linkage assembly, and more particularly to
a pop-up
drain stopper linkage assembly which is easy to be quickly assembled and
capable of
linking reliably.
Related Art
Generally, the washbasin used in most family has a lift rod extended downward
from the
faucet housing, which the lift rod connects to a pivot rod and the pivot rod
connects to the
pop-up drain stopper, the pop-up drain stopper can then be driven to open or
close by
pulling the lift rod up and down, so as to save the water in the washbasin or
move the
water out from the washbasin.
The pivot rod mentioned above usually fixes with a spherical body, which the
spherical
body is pivoted in the drain base. The pivot rod can act a lever motion based
on the
spherical body as a pivot point, so as to drive the pop-up drain stopper move
up or down
and further to achieve the operation of open or close. More specific, the
pivot rod is
pivoted in the drain base by the spherical body, wherein one end of the pivot
rod adjacent
the spherical body connects to the pop-up drain stopper and the other end of
the pivot rod
away from the spherical body connects to the above-mentioned lift rod. The
U.S. Pat. No.
4,903,943 has disclosed such structure.
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In this structure, the lift rod moves up or down in its longitudinal direction
and the pivot
rod pivots based on the spherical body as the pivot point. Therefore, a
connecter with two
terminations capable of being rotated comparatively is set between the lift
rod and the
pivot rod. The two terminations of the connecter provide the lift rod and the
pivot rod
passing through and then uses the screw to fix, therefore, when the lift rod
moves up or
down in its longitudinal direction, it can force the pivot rod oscillate
accordingly.
However, the above-mentioned structure is not easy for assembling because this
kind of
structure is normally set up in the narrow and small spaces under the
washbasin. To
assemble the lift rod, the pivot rod and the connector in such small spaces,
and to lock the
bolt of the connector by the screwdrivers, such works are arduous and time-
consuming.
Moreover, the bolt of the above-mentioned connector may become loose after
using
over a long period of time, and it makes the lift rod unable to work with the
pivot rod to
drive the pop-up drain stopper to open or close successfully, so as to form
the using
problems. Or, the rust formed between the connector and the bolt after using a
period
of time makes them unable of dismount and cause the puzzlement while changing
relevant parts in the future.
In order to solve these problems, some new structure has been designed
accordingly,
such as the structure disclosed in the U.S. Pat. No. 6,061,847 Please
referring to FIG. 3,
an actuating stem 81 and a connecting bar 82 are used to replace the afore-
said lift rod,
and the connecting bar 82 linked with the pivot rod 83 is used to force the
pop-up drain
stopper 84 to open or close.
The actuating stem 81 has a J-shaped portion 811 at its bottom end. A
connecting bar 82
has a plurality of vertically aligned apertures 821, 822 at both ends. The J-
shaped portion
811 of the stem 81 is removable received within one of the apertures 821
adjacent the
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upper end of the connecting bar 82. The upper end of the connecting bar 82
also includes
a semi-cylindrical channel 823 to receive a portion of the stem 81. The pivot
rod 83 is
received within one of the apertures 822 at the lower end of the connecting
bar 82.
When the stem 81 is pulled up or down, it can link to the connecting bar 82
and force the
pivot rod 83 to oscillate, so as to control the pop-up drain stopper 84 to
open or close.
The structure disclosed in the U.S. Pat. No. 6,061,847 has the results in
quickly and
conveniently adjusted or dismantled, however, the apertures 821 of the
connecting bar 82
and the J-shaped portion 811 of the stem 81 is only in a hook relation, which
is no definite
positioning relation existed between the stem 81 and the connecting bar 82.
Besides, the
aperture 822 of the connecting bar 82 only used for receiving the stem 81,
which is also
no definite positioning relation existed between them. Therefore, when the
user pulls up
stem 81 forcibly, it may cause the connecting bar 82 oscillate deviating, so
as to influence
the movement of the pop-up drain stopper 84 when no definite positioning
relation
existed between the connecting bar 82, the stem 81 and the pivot rod 83. More
seriously,
it may cause the problem of the connecting bar 82 deviating from the pivot rod
83.
Therefore, it is necessary to improve the above-mentioned structure and
provide a way
which resulted in both quickly assembled and certainly linked.
SUMMARY OF THE INVENTION
The primary object of the present invention is to solve the above-mentioned
issues and
to provide a pop-up drain stopper linkage assembly using a lift rod, a
connecting bar and
a pivot rod with quickly assembled and capable of linking reliably.
The secondary object of the present invention is to provide an assembly method
with
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multi-section adjusting along with the axial of the connecting bar and the
pivot rod in the
connecting position between the connecting bar and the pivot rod, provided by
a plurality
of holes of connecting bar together with a plurality of fixed portions of the
pivot rod, to
improve the assembling convenience.
For achieving the above-mentioned objects, the pop-up drain stopper linkage
assembly
according to the present invention includes a lift rod, a connecting bar, a
pivot rod and a
drain stopper. The bottom end of the lift rod forms an engagement part. The
upper end of
the connecting bar has an engagement groove for the engagement part of the
lift rod being
engaged and fixed, and the connecting bar has a plurality of holes spaced
apart a distance
away from the engagement groove. The second end of the pivot rod connects to
the drain
stopper, and a plurality of fixed portions are formed at a section adjacent
the first end,
wherein each of the fixed portions and any one of the holes are capable of
passing through
and positioning with each other.
Accordingly, the lift rod can be quickly plugged into the connecting bar for
positioning,
and the pivot rod can be received and fixed by the connecting bar for
positioning, so as to
achieve the object of quickly and conveniently assembly. Besides, the fixed
portion on
the pivot rod can be received and fixed within the hole of the connecting bar
for
positioning, so as to achieve the object of certain linkage between the lift
rod, the
connecting bar and the pivot rod.
Furthermore, the connecting bar has a plurality of holes and the pivot rod has
a plurality
of fixed portions, the hole and the fixed portion can cooperate together,
which each of the
fixed portions can be received and fixed within any one of the hole.
Therefore, the
connecting position between the connecting bar and the pivot rod position can
be adjusted
with multi-section along with the axial of the connecting bar and the pivot
rod to improve
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the assembling convenience.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. I is a schematic view according to the present invention;
FIG. 2 is a cross-sectional view of the present invention; and
FIG. 3 is a schematic view according to the prior art.
DETAILED DESCRIPTION OF THE INVENTION
Refer to FIG. 1 and FIG. 2, which shows a preferred embodiment according to
the
present invention. FIG. I is a schematic view according to the present
invention and FIG.
2 is a cross-sectional view of the present invention.
The pop-up drain stopper linkage assembly according to the present invention
includes a
lift rod 1, a connecting bar 2, a pivot rod 3 and a drain stopper 4. The pivot
rod 3 and a
drain stopper 4 are disposed in the drain base 5. The way to dispose the pivot
rod 3 and the
drain stopper 4 in the drain base 5 is well-know in the prior art, so that the
disposing
method will not be mentioned here.
The lift rod I has a bottom end 11, and the bottom end II forms an engagement
part 12.
In this embodiment, the engagement part 12 has a hook-shaped configuration and
the
engagement part 12 has a substantially rectangular cross-section. In practical
operation,
the lift rod is disposed through the faucet housing. (Un-shown in the FIG)
The connecting bar 2 has an upper end 21. The upper end 21 corresponding to
the
engagement part 12 of the lift rod 2 has an engagement groove 22 for engaging
and fixing,
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and the connecting bar 2 has a plurality of holes 23 spaced apart a distance
away from the
engagement groove 22.
The pivot rod 3 has a first end 31 and a second end 32, and the pivot rod
adjacent the
second end has a spherical body 33. The pivot rod 3 is pivoted in the drain
base 5 based on
the spherical body 33. A section of the pivot rod 3 adjacent the first end 31
has a plurality
of fixed portions 34 for tying in with the hole 23 of the connecting bar 2,
and each of the
fixed portions 34 being capable of being received and fixed within any one of
the hole 23
for positioning. In this embodiment, in order to save the material and still
keep suitable
strength, the section of the pivot rod 3 adjacent the first end 31 has a cross-
shaped
cross-section and each of the fixed portions 34 has a concave are structure
with inward
curve. Besides, a convex arc portion 35 is connected between an adjacent two
said fixed
portions 34. Therefore, the section of the pivot rod 3 adjacent the first end
31 appears with
concave-convex arc configuration.
The drain stopper 4 has a bottom portion 41, and the bottom portion 41 has an
accommodation 42 for the second end 32 of the pivot rod 3 passing
therethrough.
The lift rod 1 and the connecting bar 2 of the prevent invention use the
engagement part
12 with a hook-shaped configuration to plug into the engagement groove 22 and
being
fixed together, and the engagement part 12 has a substantially rectangular
cross-section.
Therefore, after the lift rod 1 attaches to the connecting bar 2, it forms a
stable fixed
configuration with a straight condition.
The first end 31 of the pivot rod 3 passes through the hole 23 of the
connecting bar 2,
and the fixed portion 34 with concave arc structure is received within the
hole 23. In
practical operation, an outer diameter of the section of the pivot rod 3
adjacent the first
end 31 is slightly larger than or equal to an inside diameter of the holes of
the connecting
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bar. Therefore, when the fixed portion 34 is received within the hole, it will
not loose
easily. Moreover, the drain stopper 4 is either in its open condition (status
shown in
FIG..2), or in its close condition, it means that the pivot rod 3 will not be
in its horizontal
status, therefore, the fixed portion 34 with inward curve can be received
within the hole
23 of the connecting bar 2 for positioning, so as to form a reliable linkage
configuration
between the pivot rod 3 and the connecting bar 2.
Therefore, when the users pulled up or down the lift rod 1 forcibly, it will
force the
connecting bar 2 move up or down, and cause the pivot rod 3 oscillate, so as
to influence
the movement of the pop-up drain stopper 4 in the drain base 5 to be moved up
or down
as the operation of open or close.
To sum up, the lift rod I can be quickly plugged into the connecting bar 2 for
positioning,
and the pivot rod 3 can be received by the connecting bar 2 for positioning,
so as to
assemble the whole linkage assembly quickly and conveniently. Besides, the
fixed
portion 34 of the pivot rod 3 can be received within any one of the hole 23 of
the
connecting bar 2 for positioning, therefore, it makes the lift rod 1,
connecting bar 2 and
the pivot rod 3 has a reliable linkage effect with multi-section adjusting,
and improve the
assembling convenience
