Fluid sprinkling – spraying – and diffusing – Terminal member adjustably or shiftably connected to flow... – Ball and socket flow connection
Reexamination Certificate
2001-10-15
2002-09-17
Fetsuga, Robert M. (Department: 3751)
Fluid sprinkling, spraying, and diffusing
Terminal member adjustably or shiftably connected to flow...
Ball and socket flow connection
C004S615000
Reexamination Certificate
active
06450425
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a connector structure of a wall hanging type shower head, and more particularly to a connector structure of a wall hanging type shower head, wherein the lifetime of the rotation portion of the connector may be increased.
2. Description of the Related Art
A conventional connector structure of a wall hanging type shower head in accordance with the prior art shown in
FIGS. 4 and 5
comprises a body
10
having a threaded end
11
for mounting a connector
20
, and a positioning nut
30
screwed on the threaded end
11
. The body
10
has a seat portion
12
for mounting a shower head
90
. The body
10
has a coupler
13
joined with a water outlet pipe
91
of the shower head
90
. The connector
20
has a first end formed with a rotation portion
21
and a second end formed with a pipe connection portion
22
connected with a water inlet pipe
92
. A watertight washer
93
is mounted between the water inlet pipe
92
and the pipe connection portion
22
of the connector
20
. A watertight washer
94
is mounted between the rotation portion
21
of the connector
20
and the body
10
. The positioning nut
30
has a positioning edge
31
for locking and positioning the rotation portion
21
of the connector
20
.
However, the conventional connector structure of a wall hanging type shower head has the following disadvantages.
1. The rotation portion
21
of the connector
20
directly contacts the positioning edge
31
of the positioning nut
30
, so that a large friction is created between the rotation portion
21
of the connector
20
and the positioning edge
31
of the positioning nut
30
. Thus, the surfaces of the rotation portion
21
of the connector
20
and the positioning edge
31
of the positioning nut
30
are easily worn out during long-term utilization, so that tightness between the rotation portion
21
of the connector
20
and the positioning edge
31
of the positioning nut
30
is not large enough, thereby affecting the close fit between the rotation portion
21
of the connector
20
and the watertight washer
94
, so that water easily leaks out. In addition, the rotation portion
21
of the connector
20
and the positioning edge
31
of the positioning nut
30
need to be replaced, thereby increasing cost of maintenance.
2. The body
10
, the rotation portion
21
of the connector
20
, and the positioning nut
30
are positioned in a close fit manner without clearance, so that rotation of the rotation portion
21
of the connector
20
is not convenient.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional connector structure of a wall hanging type shower head.
The primary objective of the present invention is to provide a connector structure of a wall hanging type shower head, including a body, a connector, and a positioning nut positioning the connector on the body. A watertight washer is mounted between the rotation portion of the connector and the body, and a positioning ring is mounted between the rotation portion of the connector and the positioning nut. The positioning ring has an inner periphery provided with an arcuate limit edge rested on the rotation portion of the connector, and has an outer periphery formed with a positioning shoulder rested on the positioning edge of the positioning nut. The positioning ring is formed with an enlarged edge, thereby reducing the area of friction between the positioning ring and the rotation portion of the connector. The positioning shoulder of the positioning ring may be locked with the positioning nut to prevent the positioning nut from directly contacting the rotation portion of the connector, thereby preventing the rotation portion of the connector from being worn out, so as to increase the lifetime of the rotation portion of the connector.
In accordance with a preferred embodiment of the present invention, there is provided a connector structure of a wall hanging type shower head, comprising a body having a threaded end for mounting a connector, a positioning nut screwed on the threaded end, the body having a seat portion for mounting a shower head, the body having a coupler joined with a water outlet pipe of the shower head, the connector having a first end formed with a rotation portion and a second end formed with a pipe connection portion, the positioning nut having a positioning edge for locking and positioning the rotation portion of the connector; wherein,
a ring-shaped watertight washer is mounted between the rotation portion of the connector and the body; and
an elastic positioning ring that may be expanded and contracted elastically is mounted between the rotation portion of the connector and the positioning edge of the positioning nut, the positioning ring is formed with a retraction slit, the positioning ring is provided with an arcuate limit edge opposite to the rotation portion of the connector, and the positioning ring has an outer periphery formed with a positioning shoulder that is opposite to the positioning edge of the positioning nut.
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.
REFERENCES:
patent: 2990122 (1961-06-01), Blumberg et al.
patent: 3224793 (1965-12-01), Benjamin
patent: 3887136 (1975-06-01), Anderson
patent: 6276614 (2001-08-01), Huang
Fetsuga Robert M.
Rosenberg , Klein & Lee
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