U.S. patent application number 12/749875 was filed with the patent office on 2011-10-06 for floor drain cover that can prevent waste water from flowing backward in a floor drain.
Invention is credited to Ta-Hsiang Shih, Lung-Yuan Tseng.
Application Number | 20110240536 12/749875 |
Document ID | / |
Family ID | 44708367 |
Filed Date | 2011-10-06 |
United States Patent
Application |
20110240536 |
Kind Code |
A1 |
Tseng; Lung-Yuan ; et
al. |
October 6, 2011 |
Floor Drain Cover That Can Prevent Waste Water From Flowing
Backward in a Floor Drain
Abstract
A floor drain cover includes a draining frame, a net-shaped disk
mounted in the top wall of the draining frame, a fixing bracket
mounted on the draining frame, a movable lid pivotally mounted on
the fixing bracket and movable relative to the draining frame, and
a rubber pad mounted on the movable lid and movable to seal the
bottom wall of the draining frame. Thus, when the ambient waste
water in the floor drain flows toward the draining frame, the
movable lid is pressed by the pressure of the ambient waste water
so that the movable lid moves the rubber pad to seal the bottom
wall of the draining frame, thereby preventing the ambient waste
water in the floor drain from flowing backward, and preventing the
floor from being contaminated by the ambient waste water.
Inventors: |
Tseng; Lung-Yuan; (Taipei
Hsien, TW) ; Shih; Ta-Hsiang; (Taipei, TW) |
Family ID: |
44708367 |
Appl. No.: |
12/749875 |
Filed: |
March 30, 2010 |
Current U.S.
Class: |
210/136 |
Current CPC
Class: |
E03F 5/042 20130101 |
Class at
Publication: |
210/136 |
International
Class: |
E03F 5/042 20060101
E03F005/042 |
Claims
1. A floor drain cover, comprising: a draining frame having an open
top wall and an open bottom wall; a net-shaped disk mounted in the
top wall of the draining frame; a fixing bracket mounted on the
draining frame; a movable lid pivotally mounted on the fixing
bracket and movable relative to the draining frame; a rubber pad
mounted on the movable lid to move in concert with the movable lid
and movable to abut and seal the bottom wall of the draining
frame.
2. The floor drain cover of claim 1, wherein the movable lid has a
periphery provided with a pivot bracket pivotally mounted on the
fixing bracket by a pivot pin.
3. The floor drain cover of claim 2, wherein the floor drain cover
further comprises: an elastic member mounted on the pivot pin and
having a distal end formed with an extension pressing a top face of
the movable lid.
4. The floor drain cover of claim 3, wherein the elastic member is
received in the fixing bracket.
5. The floor drain cover of claim 1, wherein the rubber pad is
disposed between the movable lid and the bottom wall of the
draining frame.
6. The floor drain cover of claim 5, wherein the rubber pad has a
bottom face abutting a top face of the movable lid and a top face
that is movable to abut and seal the bottom wall of the draining
frame.
7. The floor drain cover of claim 1, wherein the fixing bracket is
located outside of the draining frame.
8. The floor drain cover of claim 1, wherein the fixing bracket is
mounted on a periphery of the bottom wall of the draining
frame.
9. The floor drain cover of claim 1, wherein the draining frame is
mounted on and extended into a floor drain of a floor; the draining
frame has a periphery provided with two opposite fixing pieces
secured to the floor.
10. The floor drain cover of claim 9, wherein the movable lid is
received in the floor drain.
11. The floor drain cover of claim 1, wherein the movable lid is
located under the bottom wall of the draining frame.
12. The floor drain cover of claim 2, wherein the pivot pin extends
through the pivot bracket of the movable lid and the fixing
bracket.
13. The floor drain cover of claim 1, wherein the movable lid has a
central portion formed with a through hole; the rubber pad has a
central portion formed with a fixing hole; and the floor drain
cover further comprises a fastening member extended through the
through hole of the movable lid and the fixing hole of the rubber
pad to attach the rubber pad to the movable lid.
14. The floor drain cover of claim 1, wherein the top wall of the
draining frame has a size greater than that of the bottom wall of
the draining frame.
15. The floor drain cover of claim 1, wherein the draining frame
has a funnel shape and has a mediate portion formed with a tapered
guide surface disposed between the top wall and the bottom wall of
the draining frame.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a cover and, more
particularly, to a floor drain cover that is mounted on a floor to
cover a floor drain.
[0003] 2. Description of the Related Art
[0004] A conventional floor drain cover comprises a draining frame
mounted on and extended into a floor drain of a floor and a
net-shaped disk mounted in the draining frame to provide a
filtering function. Thus, the indoor water is allowed to pass
through the net-shaped disk and the draining frame into the floor
drain of the floor so that the indoor water on the floor can be
drained outward from the floor drain of the floor. However, when
the ambient waste water in the floor drain flows toward the
draining frame due to an irregular condition, the ambient waste
water is directly introduced through the net-shaped disk and the
draining frame into the floor so that the floor will be
contaminated by the ambient waste water.
BRIEF SUMMARY OF THE INVENTION
[0005] In accordance with the present invention, there is provided
a floor drain cover, comprising a draining frame having an open top
wall and an open bottom wall, a net-shaped disk mounted in the top
wall of the draining frame, a fixing bracket mounted on the
draining frame, a movable lid pivotally mounted on the fixing
bracket and movable relative to the draining frame, and a rubber
pad mounted on the movable lid to move in concert with the movable
lid and movable to abut and seal the bottom wall of the draining
frame.
[0006] The primary objective of the present invention is to provide
a floor drain cover that can prevent waste water from flowing
backward in a floor drain.
[0007] According to the primary objective of the present invention,
when the ambient waste water in the floor drain flows toward the
draining frame due to an irregular condition, the movable lid is
pressed by the pressure applied by the ambient waste water so that
the movable lid is pivoted and moved upward to move the rubber pad
to seal the bottom wall of the draining frame so as to close the
bottom wall of the draining frame and to interrupt the connection
between the draining frame and the floor drain, thereby preventing
the ambient waste water in the floor drain from flowing backward
into the draining frame and the floor, and thereby preventing the
floor from being contaminated by the ambient waste water.
[0008] Further benefits and advantages of the present invention
will become apparent after a careful reading of the detailed
description with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
[0009] FIG. 1 is a perspective view of a floor drain cover in
accordance with the preferred embodiment of the present
invention.
[0010] FIG. 2 is an exploded perspective view of the floor drain
cover as shown in FIG. 1.
[0011] FIG. 3 is a front cross-sectional view of the floor drain
cover as shown in FIG. 1.
[0012] FIG. 4 is a schematic operational view of the floor drain
cover as shown in FIG. 3 in use.
DETAILED DESCRIPTION OF THE INVENTION
[0013] Referring to the drawings and initially to FIGS. 1-3, a
floor drain cover 1 in accordance with the preferred embodiment of
the present invention comprises a draining frame 11 having an open
top wall 110 and an open bottom wall 112, a net-shaped disk 12
mounted in the top wall 110 of the draining frame 11, a fixing
bracket 13 mounted on the draining frame 11, a movable lid 14
pivotally mounted on the fixing bracket 13 and movable relative to
the draining frame 11, and a rubber pad 17 mounted on the movable
lid 14 to move in concert with the movable lid 14 and movable to
abut and seal the bottom wall 112 of the draining frame 11.
[0014] The draining frame 11 is mounted on and extended into a
floor drain 2 of a floor 3. The draining frame 11 has a funnel
shape and has a mediate portion formed with a tapered guide surface
114 disposed between the top wall 110 and the bottom wall 112 of
the draining frame 11. The draining frame 11 has a periphery
provided with two opposite fixing pieces 111 secured to the floor
3. The top wall 110 of the draining frame 11 has a size greater
than that of the bottom wall 112 of the draining frame 11.
[0015] The rubber pad 17 is disposed between the movable lid 14 and
the bottom wall 112 of the draining frame 11 and has a bottom face
abutting a top face of the movable lid 14 and a top face that is
movable to abut and seal the bottom wall 112 of the draining frame
11.
[0016] The fixing bracket 13 is located outside of the draining
frame 11 and is mounted on a periphery of the bottom wall 112 of
the draining frame 11.
[0017] The movable lid 14 is located under the bottom wall 112 of
the draining frame 11 and is received in the floor drain 2. The
movable lid 14 has a periphery provided with a pivot bracket 141
pivotally mounted on the fixing bracket 13 by a pivot pin 15. The
pivot pin 15 extends through the pivot bracket 141 of the movable
lid 14 and the fixing bracket 13. An elastic member 16 is mounted
on the pivot pin 15 and has a distal end formed with an extension
161 pressing the top face of the movable lid 14. The elastic member
16 is received in the fixing bracket 13.
[0018] The movable lid 14 has a central portion formed with a
through hole 140, the rubber pad 17 has a central portion formed
with a fixing hole 170, and a fastening member 18 is extended
through the through hole 140 of the movable lid 14 and the fixing
hole 170 of the rubber pad 17 to attach the rubber pad 17 to the
movable lid 14.
[0019] In operation, referring to FIGS. 3 and 4 with reference to
FIGS. 1 and 2, when the indoor water flows through the net-shaped
disk 12 into the draining frame 11 to contact the rubber pad 17,
the rubber pad 17 is pushed by the gravity of the indoor water to
press the movable lid 14 so that the movable lid 14 is pivoted and
moved downward to open the bottom wall 112 of the draining frame 11
as shown in FIG. 3, thereby allowing the indoor water to flow
through the bottom wall 112 of the draining frame 11 into the floor
drain 2.
[0020] On the contrary, when ambient waste water in the floor drain
2 flows upward to contact the movable lid 14, the movable lid 14 is
pressed by the pressure applied by the ambient waste water so that
the movable lid 14 is pivoted and moved upward to compress the
elastic member 16 and to move the rubber pad 17 to seal the bottom
wall 112 of the draining frame 11 so as to close the bottom wall
112 of the draining frame 11 as shown in FIG. 4, thereby preventing
the ambient waste water in the floor drain 2 from flowing backward
into the draining frame 11 and the floor 3, and thereby preventing
the floor 3 from being contaminated by the ambient waste water.
[0021] Accordingly, when the ambient waste water in the floor drain
2 flows toward the draining frame 11 due to an irregular condition,
the movable lid 14 is pressed by the pressure applied by the
ambient waste water so that the movable lid 14 is pivoted and moved
upward to move the rubber pad 17 to seal the bottom wall 112 of the
draining frame 11 so as to close the bottom wall 112 of the
draining frame 11 and to interrupt the connection between the
draining frame 11 and the floor drain 2, thereby preventing the
ambient waste water in the floor drain 2 from flowing backward into
the draining frame 11 and the floor 3, and thereby preventing the
floor 3 from being contaminated by the ambient waste water.
[0022] Although the invention has been explained in relation to its
preferred embodiment(s) as mentioned above, it is to be understood
that many other possible modifications and variations can be made
without departing from the scope of the present invention. It is,
therefore, contemplated that the appended claim or claims will
cover such modifications and variations that fall within the true
scope of the invention.
* * * * *