Sprinkler structure

Details Sprinkler structure Sprinkler structure

2001-08-23

2002-05-21

Evans, Robin O. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Flow line or nozzle attached or carried handgrip or handle

C239S526000, C239S569000

Reexamination Certificate

active

06390390

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention is related to a sprinkler structure having less components which can be easily and quickly assembled. The controlling valve assembly can be tightly and precisely fitted in the controlling valve seat without leakage. The amount of the water discharged from the sprinkler can be micro-adjusted as necessary.
FIG. 1
shows a conventional sprinkler. The controlling valve assembly is arranged in the tubular barrel body
1
of the sprinkler. A thread rod
2
rearward extends from the barrel body
1
. A controlling trigger
4
is pivotally connected with back side of the tubular handle
3
. The top end of the controlling trigger
4
via a nut
5
chucks the thread rod
2
. In operation, a user's hand holds the controlling trigger
4
and the handle
3
and presses the trigger
4
to drive the thread rod
2
for operating the controlling valve assembly inside the barrel body
1
.
The above conventional sprinkler structure has some shortcomings as follows:
1. In operation, the thumb of the user presses the trigger
4
to open or close the sprinkler. Such operation is not easy to perform.
2. When it is necessary to adjust the amount of the sprinkled water, the user needs to adjust the nut
5
at the top of the trigger
4
. It is inconvenient for the user to perform such adjustment.
FIG. 2
shows another conventional sprinkler. The barrel body
11
and the handle
12
communicate with each other. The barrel body
11
and the handle
12
are integrally coated with a plastic layer to form the sprinkler main body
10
. The front end of the barrel body
11
is formed with a thread section
13
for connecting with a sprinkling head
14
. The rear end of the handle
12
is formed with inner thread
15
for connecting with a water hose. A controlling valve tube seat
20
is disposed in upper section of the handle
12
and positioned at an adjoining section between the handle
12
and the barrel body
11
. The inner end of the valve tube seat
21
integrally communicates with the barrel body
11
and the handle
12
. The inner face of outer end of the valve tube seat
21
is formed with symmetrical locating dents
22
. A spring
35
and a cylindrical valve tube member
23
are fitted in the valve tube seat
21
. The valve tube member
23
is formed with protuberances
24
corresponding to the locating dents
22
of the valve tube seat
21
. The valve tube member
23
is inserted in the valve tube seat
21
. One side of the inner end of the valve tube member
23
is formed with a through hole
26
facing the barrel body
11
. The other side thereof is formed with a notch
25
facing the handle
12
. The notch
25
is deflected from the through hole
26
by a certain distance. The slide shaft hole
27
in the valve tube member
23
within the deflection distance between the notch
25
and the through hole
26
is enlarged to form an annular step
28
. The circumferential face of the valve tube body
23
opposite to the inner side of the protuberances
24
and the deflection distance between the notch
25
and the through hole
26
is respectively formed with an annular groove
29
in which a water-sealing ring
30
is fitted to slidably watertight attach to the valve tube seat
21
. A slide shaft
31
is passed through the slide shaft hole
27
of the valve tube member
23
. The front end thereof protrudes from the valve tube member
23
. The circumference of the rear end of the slide shaft
31
is formed with an annular stop flange
32
. The slide shaft
31
is formed with an annular groove
29
on front side of the stop flange
32
in which a water-sealing washer
33
is fitted for watertight attaching to the annular step
28
of the slide shaft hole
27
. The middle section of the slide shaft
31
is formed with an annular neck groove
34
with a width bridging over the notch
25
and the through hole
26
of the valve tube member
23
. The front section of the slide shaft
31
is formed with an annular groove
29
in which a water-sealing ring
30
is fitted for slidably watertight attaching to the inner wall face of the slide shaft hole
27
.
The above conventional structure has some shortcomings as follows:
1. The sprinkler has numerous components and it is troublesome to assemble these components.
2. In the case of little error of the dimension of the components, the assembly of the components will have poor watertight effect. As a result, when operating the sprinkler, water will leak therefrom.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide an improved sprinkler structure having less components which can be easily and quickly assembled.
It is a further object of the present invention to provide the above sprinkler in which the components can be assembled at high precision without leakage.
It is still a further object of the present invention to provide the above sprinkler which can be maintained in a state of maximum water flow or a water-sealing state. In addition, the amount of the discharged water can be micro-adjusted as necessary. Therefore, the sprinkler can be conveniently operated.
The present invention can be best understood through the following description and accompanying drawings wherein:


REFERENCES:
patent: 4396156 (1983-08-01), Southworth et al.
patent: 4618100 (1986-10-01), White et al.
patent: 4909443 (1990-03-01), Takagi
patent: 5984207 (1999-11-01), Wang
patent: 6247654 (2001-06-01), Kuo

Affiliated with

Also associated with

Rating

Sprinkler structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sprinkler structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sprinkler structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2843474