ROBINET ECOLOGIQUE ET METHODE DE PRODUCTION DUDIT ROBINET

ENVIRONMENTAL FAUCET AND METHOD FOR PRODUCING THE SAME

Abrégé français

Un robinet écologique comprend un corps, un siège de soupape, un noyau de soupape, un coude de sortie, un conduit de prise deau, un aérateur, un capuchon de fermeture et une poignée. Le siège de soupape et le noyau de soupape sont installés dans le corps. Le coude de sortie est connecté à une extrémité supérieure du siège de soupape et possède un tuyau extérieur et un tuyau intérieur, le tuyau extérieur étant en métal et le tuyau intérieur étant en plastique. Le conduit de prise deau est connecté à une extrémité inférieure du siège de soupape et possède un tuyau extérieur et un tuyau intérieur, le tuyau extérieur de celui-ci étant en métal et le tuyau intérieur étant en plastique. Comme leau entrant dans le robinet écologique dans une trajectoire découlement de manière séquentielle à travers le conduit de prise deau et le coude de sortie ne sécoule pas à travers des parties métalliques, une libération excessive de métaux lourds dans leau peut être évitée.

Abrégé anglais

An environmental faucet includes a body, a valve seat, a valve core, an outlet elbow, a water-intake duct, an aerator, a locking cap and a handle. The valve seat and the valve core are mounted in the body. The outlet elbow is connected with a top end of the valve seat and has an outer pipe and an inner pipe, the outer pipe is made from metal, and the inner pipe is made from plastic. The water-intake duct is connected with a bottom end of the valve seat and has an outer pipe and an inner pipe, the outer pipe thereof is made from metal, and the inner pipe is made from plastic. As water entering the environmental faucet in a flow path sequentially through the water-intake duct and the outlet elbow does not flow through the metal portions, excessive heavy metal released in the water can be avoided.

Revendications

WHAT IS CLAIMED IS;

1. An environmental faucet, comprising:
a body being cylindrical in shape and having:
a top end;
a bottom end; and
a tube seat formed on and extending perpendicularly outwards from a sidewall
of
the body and being internally threaded;
a valve seat mounted in the body and having:
a top end being externally threaded;
a bottom end being internally threaded;
a connected recess formed in a peripheral wall of the valve seat;
a valve core having a spindle formed on and extending from an outer portion of
the
valve core, wherein an inner portion of the valve core is mounted inside the
connected
recess of the valve seat, and one end of the valve core opposite to the
spindle is
mounted in the tube seat of the body;
an outlet elbow having:
an outer pipe made from a metal material; and
an inner pipe made from a plastic material and mounted inside the outer pipe,
wherein an inlet end of the outlet elbow engages the top end of the valve
seat;
a water-intake duct having:
an outer pipe made from a metal material; and
an inner pipe made from a plastic material;
wherein a top end of the water-intake duct is securely mounted in the bottom
end of
the valve seat;
a locking cap having:
a central coupling hole; and

6

a locking section being externally threaded, formed on a periphery of the
locking
cap, and engaging an internally-threaded portion of the tube seat of the body;
and
a handle securely connected with the locking cap and the valve core, wherein
the
spindle of the valve core is mounted in the handle through the central
coupling hole of
the locking cap.
2. The environmental faucet as claimed in claim 1, wherein an aerator is
made from
a plastic material and is mounted on an outlet end of the outlet elbow.
3. The environmental faucet as claimed in claim 1, wherein the outlet elbow
has:
a PP (Polyproplene) tube connector securely connected with bottom portions
of the outer pipe and inner pipe of the outlet elbow to seal and join the
bottom
portions of the outer pipe and the inner pipe; and
a nut mounted on the top of the connector mounted around a periphery of the
outer tube and located above the PP tube connector, wherein an inlet end of
the outlet
elbow engages the externally threaded top end of the valve seat with the nut.
4. The environmental faucet as claimed in claim 3, wherein the outlet elbow
has a
second O-ring mounted between an outer surface of the PP tube connector and an

inner surface of the valve seat to form hermetic seal between the outlet elbow

and the valve seat.
5. The environmental faucet as claimed in claim 1, wherein the outlet elbow
has a
first O-ring mounted on an inlet end of the inner pipe of the outlet elbow and
is
mounted between the inner pipe and the outer pipe of the outlet elbow to avoid

the inner pipe to come off the outer pipe.
7

Description

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CA 2925631 2017-02-28
ENVIRONMENTAL FAUCET AND METHOD FOR PRODUCING
THE SAME
BACKGROUND OF THE INVENTION
Field of the Invention
[0001] The present invention relates to an environmental faucet and, more
particularly, to an environmental faucet installed in kitchen.
Description of The Related Art
[0002] Faucet is a type of hardware necessary in our daily life. The new
faucet
standard GB-18145 has been enforced since Dec. 1, 2014 to regulate the
allowable
amount of heavy metal released from the faucet. However, most of conventional
faucets in the market have the problem of excessive release of heavy metal
while
qualified faucets are disadvantageous in high cost of manufacture, making them
less
competitive in the faucet market.
SUMMARY OF THE INVENTION
[0003] In view of the problems and drawbacks of the conventional techniques,
the
objective of the present invention is to provide an environmental faucet
spout.
[0004] One aspect of the present invention is to provide an environmental
faucet
capable of reducing excessive metal released in water flowing through the
environmental faucet.
[0005] To achieve the foregoing, the environmental faucet spout includes a
body, a
valve seat, a valve core, a spout, a water-intake duct, an aerator, a locking
cap and a
handle.
[0006] The body is cylindrical in shape and has a top end, a bottom end and a
tube
seat. The bottom end is connected with a water-intake duct. The tube seat is
formed
on and extends perpendicularly outwards from a sidewall of the body and is
internally

CA 02925631 2016-03-31
threaded.
[0007] The valve seat is mounted in the body and has a top end, a bottom end
and a
connected recess. The top end is externally threaded. The bottom end is
internally
threaded. The connected recess is formed in a peripheral edge wall of the
valve seat.
[0008] The valve core has a spindle formed on and extending from an outer
portion
of the valve core. An inner portion of the valve core is mounted inside the
connected
recess of the valve seat. One end of the valve core opposite to the spindle is
mounted
in the tube seat of the body.
[0009] The outlet elbow has an outer pipe and an inner pipe. The outer pipe is

made from a metal material. The inner pipe is made from a plastic material and
is
mounted inside the outer pipe. An inlet end of the outlet elbow engages the
top end of
the valve seat.
[00010] The water-intake duct has an outer pipc and an inner pipe. The outer
pipe is
made from a metal material. The inner pipe is made from a plastic material. A
top end
of the water-intake duct is securely mounted in the bottom end of the valve
seat.
[00011] The locking cap has a central coupling hole and a locidng section. The

locking section is externally threaded, is formed on a periphery of the
locking cap,
and engages an internally-threaded portion of the tube seat of the body.
[00012] The handle is securely connected with the locking cap and the valve
core.
The spindle of the valve core is mounted in the handle through the central
coupling
hole of the locking cap.
[00013] As water entering the environmental faucet in a flow path sequentially

through the water-intake duct and the outlet elbow only flow through the inner
plastic
portions of the water-intake duct and the outlet elbow, excessive heavy metal
released
in the water can be avoided accordingly.
[00014] According to the foregoing description, the present invention has the
2

CA 02925631 2016-03-31
advantages that simplifying the manufacture, and resolving excessive heavy
metal in
drinking water.
BRIFE DESCRIPTION OF THE DRAWINGS
[00015] The detailed description of the drawings particularly refers to the
accompanying figures in which:
[00016] Fig. 1 is an exploded perspective view of an environmental faucet;
[00017] Fig 2 is a partially exploded perspective view of an outlet elbow of
the
environmental faucet in Fig. I; and
[00018] Fig 3 is a partially exploded perspective view of a water-intake duct
of the
environmental faucet in F ig.1
DETAILED DESCRIPTION OF THE INVENTION
[00019] The purpose, construction, features, functions and advantages of the
present
invention can be appreciated and understood more thoroughly through the
following
detailed description in conjunction with the attached drawings.
[00020] With reference to Fig.!, an environmental faucet in accordance with
the
present invention includes a body 1, a valve seat 2, a valve core 3, a locking
cap 7, a
handle 8, an outlet elbow 4, a water-intake duct 5, and an aerator 6.
[00021] The body I takes the form of a cylindrical tube, has a top end, a
bottom end
and a tube seat 1-1. The top end is connected with an inlet end of the outlet
elbow 4,
the bottom end is connected with the water-intake duct 5, and the tube seat 1-
1 is
formed on and extends perpendicularly outwards from a sidewall of the body 1
and is
internally-threaded. The valve seat 2 is mounted in the body 1, and has a top
end, a
bottom end and a connected recess 2-1. The top end is externally threaded. The

bottom end is internally threaded. The connected recess 2-1 is formed in a
peripheral
wall of the valve seat 2. The valve core 3 has a spindle 3-1 formed on and
extending
from an outer portion of the valve core 3, and an inner portion of the valve
core 3 is
3

CA 02925631 2016-03-31
mounted inside the connected recess 2-1 of the valve seat 2. The valve core 3
is
laterally mounted in the valve seat 2 through the tube seat 1-1 of the body 1.
[00022] The locking cap 7 has a central coupling hole 7-1 and an
externally-threaded section formed on a periphery of the locking cap 7. The
handle 8
is securely connected with the locking cap 7 and the valve core 3. The spindle
3-1 of
the valve core 3 is mounted in the handle 8 through the central coupling hole
7-1 of
the locking cap 7 and one end of the valve core opposite to the spindle 3-1 is
mounted
in the tube seat 1-1 of the body 1. The externally-threaded section of the
locking cap 7
engages the internally-threaded portion of the tube seat 1-1 of the body 1,
such that
the handle 8 is mounted on the tube seat 1-1 of the body 1 to receive the
valve core 3
and the locking cap 7 inside the tube seat 1-1 of the body 1 and the handle 8.
[00023] With reference to Fig. 2, the outlet elbow 4 has an outer pipe4-1, an
inner
pipe 4-2, a PP (Polyproplene) tube connector 4-3 and a nut 4-4. The outer pipe
4-1 is
made from stainless steel, and the inner pipe 4-2 is made from plastic. The
inner pipe
4-2 is mounted into the outer pipe 4-1. A first 0-ring 4-21 is mounted on an
inlet end
of the inner pipe 4-2 and is mounted between the inner pipe 4-2 and the outer
pipe 4-1
to avoid the inner pipe 4-2 to come off the outer pipe 4-1. The PP tube
connector 4-3
is securely connected with bottom portions of the outer pipe 4-1 and inner
pipe 4-2 by
means of laser welding to seal and join the bottom portions of the outer pipe
4-1 and
the inner pipe 4-2 through the PP tube connector 4-3. The nut 4-4 is mounted
around a
periphery of the outer tube 4-1 and is located above the PP tube connector 4-
3. An
inlet end of the outlet elbow 4 engages the externally threaded top end of the
valve
seat 2 with the nut 4-4 through threaded connection, and a second 0-ring 4-5
mounted between an outer surface of the PP tube connector 4-3 and an inner
surface
of the valve seat 2 to form hermetic seal between the outlet elbow 4 and the
valve seat
2. The aerator 6 is made from an ABS (Acrylonitrile Butadiene Styrene) plastic
4

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material and is mounted on an outlet end of the outlet elbow 4.
[00024] With reference to Fig. 3, the water-intake duct 5 has an outer pipe 5-
1 and
an inner pipe 5-2, the outer pipe 5-1 is made from a metal material, and the
inner pipe
5-2 is made from plastic. The inner pipe 5-2 mounted into the outer pipe 5-2.
The
outer pipe 5-1 is externally threaded across an outer surface of the outer
pipe 5-1. The
inner pipe 5-2 is axially mounted through the outer pipe 5-1, and a top end of
the
water-intake duct 5 is securely mounted in the bottom end of the valve seat 2
through
threaded connection and is mounted into the body I.
[00025] Water enters the environmental faucet in a flow path sequentially
through
the inner pipe 5-2 of the water intake duct 5, the inner pipe 4-2 of the
outlet elbow 4,
and the aerator 6. Therefore, metal portions of the present invention are used
for
connecting and fastening different elements of the environmental faucet, such
that the
water only flows through the plastic portions instead of the metal portions.
Since
water does not directly contact with the metal portions at all, excessive
heavy metal
release in the water can be avoided to ensure safe drinking water.

Dessin représentatif