U.S. patent application number 15/293312 was filed with the patent office on 2017-02-02 for seamless connecting drain structure of metallic sink.
The applicant listed for this patent is Jun-Qi Lin. Invention is credited to Jun-Qi Lin.
Application Number | 20170030059 15/293312 |
Document ID | / |
Family ID | 57882254 |
Filed Date | 2017-02-02 |
United States Patent
Application |
20170030059 |
Kind Code |
A1 |
Lin; Jun-Qi |
February 2, 2017 |
Seamless connecting drain structure of metallic sink
Abstract
A seamless connecting drain structure of a metallic sink is
provided. When the metallic sink is installed, a drain pipe or a
drain connector as a drain end of a water outlet of the metallic
sink is connected with an annular ring of the water outlet through
a screw sleeve with inner threads to mesh with outer threads of a
connecting sleeve, or a drain connector having inner threads is
directly screwed to the outer threads of the connecting sleeve to
connect with the annular ring. The entire structure of the water
outlet is convenient for the drain pipe or the drain connector to
be connected with the annular ring. Through the annular ring, the
bottom of the metallic sink extends outward to form a complete
configuration, so that the drain end of the water outlet and the
drain pipe or the drain connector are connected seamlessly.
Inventors: |
Lin; Jun-Qi; (Taichung,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Lin; Jun-Qi |
Taichung |
|
TW |
|
|
Family ID: |
57882254 |
Appl. No.: |
15/293312 |
Filed: |
October 14, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E03C 1/22 20130101; E03C
1/264 20130101; E03C 1/262 20130101 |
International
Class: |
E03C 1/22 20060101
E03C001/22; E03C 1/264 20060101 E03C001/264; E03C 1/262 20060101
E03C001/262 |
Claims
1. A seamless connecting drain structure of a metallic sink, a
bottom of the metallic sink being formed with a water outlet, the
water outlet extending outward from a wall of the bottom of the
metallic sink to form an annular ring, an outer periphery of the
annular ring being fixedly connected with a connecting sleeve, an
outer wall of the connecting sleeve being formed with outer
threads.
2. The seamless connecting drain structure of a metallic sink as
claimed in claim 1, wherein the outer threads of the connecting
sleeve is screwedly connected with a screw sleeve having inner
threads on an inner wall thereof, and a drain pipe is connected to
the annular ring of the water outlet through the screw sleeve.
3. The seamless connecting drain structure of a metallic sink as
claimed in claim 1, wherein the outer threads of the connecting
sleeve is screwedly connected with a screw sleeve having inner
threads on an inner wall thereof, and a drain connector is
connected to the annular ring of the water outlet through the screw
sleeve.
4. The seamless connecting drain structure of a metallic sink as
claimed in claim 1, wherein the outer threads of the connecting
sleeve is screwedly connected with a drain connector having inner
threads therein, enabling the annular ring of the water outlet to
be connected with the drain connector.
5. The seamless connecting drain structure of a metallic sink as
claimed in claim 1, wherein the connecting sleeve is fixed on an
outer surface of the annular ring by welding.
6. The seamless connecting drain structure of a metallic sink as
claimed in claim 1, wherein a filter member is provided for
plugging the annular ring, the filter member has a filter aperture
portion and a recess, the recess is provided with a sink cover for
closing the filter aperture portion.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a seamless connecting drain
structure, and more particularly to a seamless connecting drain
structure of a metallic sink to connect with a drain pipe or a
drain connector seamlessly so that a water outlet of the metallic
sink can be cleaned and maintained easily.
BACKGROUND OF THE INVENTION
[0002] In order to be durable, beautiful or easy for cleaning and
maintenance, most kitchen sinks in the market are metallic sinks
made of stainless steel. Metallic sinks are used for washing
kitchen utensils, dishes, fruit or vegetables. In general, the
water outlet of the metallic sink is connected with a drain pipe
for draining dirty water. In order to avoid a clog in the drain
pipe, the water outlet of the metallic sink is connected with a
drain connector, and a filter or a mesh is provided in the drain
connector to filter residues in the drainage. In consideration of
the cost, the metallic sink is made by sheet metal processing
techniques to form a thin casing (thin wall) body. Because the wall
of the bottom of the sink is thin, it is not easy to connect a
drain connector at the outlet end of the water outlet. For example,
a conventional drain connector structure is entitled "a drain
connector structure of a kitchen sink". The drain connector is
disposed in the sink and extends out from the water outlet of the
bottom of the sink. The rim of the drain connector is retained on
the surface of the bottom of the sink to cooperate with a packing
washer, so that the drain connector is located beneath the bottom
of the sink. A locking ring is provided on an outer threaded
section of the drain connector for fixing the drain connector to
the water outlet. No matter how thin the packing washer is, there
is still a gap between the rim of the drain connector and the
surface of the bottom of the sink. There will be dirt and filth
accumulated in the gap (it is easy to breed mold and bring odor).
Furthermore, it is not easy for cleaning and maintenance to affect
the appearance of the sink and hygiene.
SUMMARY OF THE INVENTION
[0003] The primary object of the present invention is to provide a
seamless connecting drain structure of a metallic sink. A bottom of
the metallic sink is formed with a water outlet. The water outlet
extends outward from the wall of the bottom of the metallic sink to
form an annular ring. The outer periphery of the annular ring is
fixedly connected with a connecting sleeve. The outer wall of the
connecting sleeve is formed with outer threads. When the metallic
sink is installed for use, a drain pipe or a drain connector used
as a drain end of the water outlet is connected with the annular
ring of the water outlet through a screw sleeve with inner threads
to mesh with the outer threads of the connecting sleeve, or a drain
connector having inner threads therein is directly screwed to the
outer threads of the connecting sleeve to connect with the annular
ring of the water outlet. The entire structure of the water outlet
is convenient for the drain pipe or the drain connector to be
connected with the annular ring. Through the annular ring of the
water outlet, the bottom of the metallic sink extends outward to
form a complete configuration, so that the drain end of the water
outlet and the drain pipe or the drain connector are connected
seamlessly. This is easy for cleaning and maintenance.
[0004] Preferably, the connecting sleeve is fixed on an outer
surface of the annular ring by welding, so that the connecting
sleeve is connected with the annular ring firmly.
[0005] Preferably, a filter member is provided for plugging the
annular ring. The filter member has a filter aperture portion and a
recess. The recess is provided with a sink cover for closing the
filter aperture portion. When the metallic sink is filled with
water, the sink cover prevents the water in the metallic sink from
be drained from one end of the annular ring of the water outlet. On
the contrary, when the sink cover is opened, the dirty water in the
metallic sink flows through the end of the annular ring of the
water outlet to be drained. The filter aperture portion of the
filter member is used to filter impurity to attain a filter
effect.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is an exploded view of the present invention;
[0007] FIG. 2 is a sectional view of the present invention;
[0008] FIG. 3 is a schematic view of the present invention
connected with a drain pipe;
[0009] FIG. 4 is a schematic view of the present invention
connected with a metallic drain connector; and
[0010] FIG. 5 is a schematic view of the present invention
connected with a plastic drain connector formed by injection
molding.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Embodiments of the present invention will now be described,
by way of example only, with reference to the accompanying
drawings.
[0012] The present invention discloses a seamless connecting drain
structure of a metallic sink. As shown in FIG. 1 and FIG. 2, a
bottom 11 of a stainless steel metallic sink 10 is formed with a
water outlet 20. The water outlet 20 extends outward from the wall
of the bottom 11 of the metallic sink 10 to form an annular ring
21. The outer periphery of the annular ring 21 is fixedly connected
with a connecting sleeve 30. The outer wall of the connecting
sleeve 30 is formed with outer threads 31. As shown in FIG. 3 and
FIG. 4, when the metallic sink 10 is installed for use, a drain
pipe 40 or a stainless steel drain connector 50A (comprising a
strainer 51 therein and connecting with a drain duct 52 at a bottom
end thereof) used as a drain end of the water outlet 20 is
connected with the annular ring 21 of the water outlet 20 through a
screw sleeve 60 with inner threads 61 to mesh with the outer
threads 31 of the connecting sleeve 30. As shown in FIG. 5, in
another embodiment, a drain connector 50B (comprising a strainer 51
therein and connecting with a drain duct 52 at a bottom end
thereof) having inner threads therein formed by injection molding
and made of a plastic material is directly screwed to the outer
threads 31 of the connecting sleeve 30 to connect with the annular
ring 21 of the water outlet 20. As shown in FIG. 3, FIG. 4, and
FIG. 5, the entire structure of the water outlet 20 is convenient
for the drain pipe 40 or the drain connector 50A, 50B to be
connected with the annular ring 21. Through the annular ring 21 of
the water outlet 20, the bottom 11 of the metallic sink 10 extends
outward to form a complete configuration, so that the drain end of
the water outlet 20 and the drain pipe 40 or the drain connector
50A, 50B are connected seamlessly. This is easy for cleaning and
maintenance.
[0013] According to the aforesaid embodiment, as shown in FIG. 2,
the connecting sleeve 30 is fixed an outer surface of the annular
ring 21 by welding, so that the connecting sleeve 30 is connected
with the annular ring 21 firmly.
[0014] According to the aforesaid embodiment, as shown in FIG. 1
and FIG. 2, a filter member 70 is provided for plugging the annular
ring 21. The filter member 70 has a filter aperture portion 71 and
a recess 72. The recess 72 is provided with a sink cover 70 for
closing the filter aperture portion 71. As shown in FIG. 3, FIG. 4,
and FIG. 5, when the metallic sink 10 is filled with water, the
sink cover 73 prevents the water in the metallic sink 10 from be
drained from one end of the annular ring 21 of the water outlet 20.
On the contrary, when the sink cover 73 is opened (not shown in the
drawings), the dirty water in the metallic sink 10 flows through
the end of the annular ring 21 of the water outlet 20 to be
drained. The filter aperture portion 71 of the filter member 70 is
used to filter impurity to attain a filter effect.
[0015] Although particular embodiments of the present invention
have been described in detail for purposes of illustration, various
modifications and enhancements may be made without departing from
the spirit and scope of the present invention. Accordingly, the
present invention is not to be limited except as by the appended
claims.
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