WO1983003064A1 - Pop-up butterfly sprinkler - Google Patents

Pop-up butterfly sprinkler Download PDF

Info

Publication number
WO1983003064A1
WO1983003064A1 PCT/AU1983/000030 AU8300030W WO8303064A1 WO 1983003064 A1 WO1983003064 A1 WO 1983003064A1 AU 8300030 W AU8300030 W AU 8300030W WO 8303064 A1 WO8303064 A1 WO 8303064A1
Authority
WO
WIPO (PCT)
Prior art keywords
sprinkler
plunger
cup
pop
barrel
Prior art date
Application number
PCT/AU1983/000030
Other languages
French (fr)
Inventor
Irrigation Systems Pty. Limited Ris
Original Assignee
Tucker, Alfred, Denholm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tucker, Alfred, Denholm filed Critical Tucker, Alfred, Denholm
Publication of WO1983003064A1 publication Critical patent/WO1983003064A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0486—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet the spray jet being generated by a rotary deflector rotated by liquid discharged onto it in a direction substantially parallel its rotation axis
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/09—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers telescopic or adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/70—Arrangements for moving spray heads automatically to or from the working position
    • B05B15/72—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
    • B05B15/74—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards

Definitions

  • This invention relates generally to pop-up sprinklers, more particularly to pop-up sprinklers having a butterfly sprinkler therein.
  • Pop-up sprinklers are well known, these generally having a fixed head or spray jet whereby the water impinges against a fixed member to spray the water 10. in the desired area.
  • a pop-up butterfly sprinkler including a barrel adapted to be attached to a water supply, a hollow plunger operating in said barrel, said plunger being biased downwardly by a spring acting against the bottom end of a cup, said barrel being 25. releasably attachable to said cup, a butterfly sprinkler situated within said cup and attached to said hollow plunger, said sprinkler carrying at its top a cap adapted to seat on the top of the cup when the sprinkler is in its lowered position, the arrangement being 30. such that water pressure will raise the plunger and sprinkler thus compressing the spring which returns the sprinkler to its lowered position upon release of water pressure.
  • FIG. 1 is a cross-section of the sprinkler in the lowered position
  • FIG. 2 is a perspective view of the sprinkler in the raised position.
  • a rotating head 7 has an upwardly projecting shaft 8 which engages in the bearing 5, the shaft 25. 8 and bore 6 of the bearing 5 being dimensioned so that when water pressure is exerted on the rotating head 7, the head is lifted into the upper operating position with the end of the shaft 8 bearing against the inner end of the bore 5.
  • the shaft 8 has a tapered configuration having a lower part 9 fitting into a dust skirt 10 extending down from the bottom of the bearing so that when in its lowered position the skirt 10 shrouds the larger part 9 of the shaft 8 to prevent dust or
  • the lower part 14 of the rotating head 7 which extends into the recess 13 terminates above a jet orifice 15 formed in the end of an insert sleeve
  • connection 30 may be made to a source of water.
  • the bottom of the hollow plunger 3 is provided with grooves 22 to engage over ribs 23 in the barrel wall.
  • a gasket 24 of rubber or other like material is provided between the bottom of a cup 18 and the upper end of the barrel 20, the plunger 3 being biased downwardly by a spring 25, which spring rests 5. in a channel shaped ring 26 against the gasket 24.
  • the upper ends of the arms 4 are provided with a snap-on cap 27 which in the lowered position of the sprinkler rests in a recess 28 in the upper
  • the rotating head 7 thus has limited up and down movement, and it will be appreciated that firstly the head has the upwardly protecting shaft 8 protected
  • the recess 13 has slots 20. or cut-outs 29 which are provided to allow any dirt or debris or the like which may tend to collect in the recess to be readily thrown out by the rotating head and any water which may tend to collect in the recess, particularly on termination of flow 25. of the water.
  • the plunger is not a sealing fit within the barrel, but the water pressure Is such that the water acting on the end of the hollow plunger, and
  • This sprinkler as described would be mounted in the garden or lawn or other area with the cap at or just below ground level, the upward movement

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)

Abstract

A pop-up butterfly sprinkler, the sprinkler having a sprinkler head (4) connected to a hollow plunger (3) reciprocating in a barrel (20). The barrel (20) carries at its upper end a cup (18) to receive the sprinkler head (4) in the lowered position, the head carrying a cap (27) to close the cup. Water pressure raises the head and cap, a spring (25) acting on the plunger to retract the head on termination of water pressure.

Description

"POP-UP BUTTERFLY SPRINKLER"
This invention relates generally to pop-up sprinklers, more particularly to pop-up sprinklers having a butterfly sprinkler therein.
5. BACKGROUND TO THE INVENTION
Pop-up sprinklers are well known, these generally having a fixed head or spray jet whereby the water impinges against a fixed member to spray the water 10. in the desired area.
However to the applicants knowledge there is not available a pop-up butterfly sprinkler and it is an object of this invention to provide such a 15. sprinkler.
BRIEF STATEMENT OF THE INVENTION
Thus there is provided according to the invention 20. a pop-up butterfly sprinkler, the sprinkler including a barrel adapted to be attached to a water supply, a hollow plunger operating in said barrel, said plunger being biased downwardly by a spring acting against the bottom end of a cup, said barrel being 25. releasably attachable to said cup, a butterfly sprinkler situated within said cup and attached to said hollow plunger, said sprinkler carrying at its top a cap adapted to seat on the top of the cup when the sprinkler is in its lowered position, the arrangement being 30. such that water pressure will raise the plunger and sprinkler thus compressing the spring which returns the sprinkler to its lowered position upon release of water pressure. BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be more fully understood, an embodiment will now be described 5. with reference to the accompanying drawings in which:-
FIG. 1 is a cross-section of the sprinkler in the lowered position, and
10. FIG. 2 is a perspective view of the sprinkler in the raised position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
15. The sprinkler illustrated in the figures comprises a body 1 having a screw thread 2 whereby it can be secured to the hollow plunger 3 and has two arms 4-4 projecting upwardly to a bearing 5 which is located in a bore 6 at the junction of the arms,
20. which arms, define a space in which the rotating head operates.
A rotating head 7 has an upwardly projecting shaft 8 which engages in the bearing 5, the shaft 25. 8 and bore 6 of the bearing 5 being dimensioned so that when water pressure is exerted on the rotating head 7, the head is lifted into the upper operating position with the end of the shaft 8 bearing against the inner end of the bore 5.
30. The shaft 8 has a tapered configuration having a lower part 9 fitting into a dust skirt 10 extending down from the bottom of the bearing so that when in its lowered position the skirt 10 shrouds the larger part 9 of the shaft 8 to prevent dust or
35. grit getting into the bearing itself which commences at the upper end of the skirt 10.
OMPI The rotating head 7 is generally similar to the heads used heretofore in that it comprises a moulding with a curved shaped director 11 in which is formed a channel 12 which terminates at the lower 5. end to surround the axis of the shaft 8 of the rotating head and curves upwardly and outwardly to direct water laterally and is caused to rotate by the reaction due to the curve of the channel. The rotating head
7 extends downwardly sufficiently far to fit into 10. a recess 13 which is axially arranged with the shaft
8 of the rotating head 7 so that limited lateral displacement only is possible of the lower part of the rotating head 7 to ensure that the head 7 or shaft 8 cannot be damaged or removed.
15. The lower part 14 of the rotating head 7 which extends into the recess 13 terminates above a jet orifice 15 formed in the end of an insert sleeve
16 which is an interference fit in the body to hold it in position allowing it to be pushed or driven
20. into the bore in the body. The recess freely accom¬ modates that end of the head 7 remote from the bearing 5 to prevent significant lateral displacement of that end of the head.
25. The hollow plunger 3 passes through an aperture
17 in the bottom of a cup 18, the cup 18 having a bayonet fitting 19 to the upper end of a barrel 20. The bottom of the barrel 20 is formed with a screw thread or other connection 21 whereby connection 30. may be made to a source of water.
The bottom of the hollow plunger 3 is provided with grooves 22 to engage over ribs 23 in the barrel wall. A gasket 24 of rubber or other like material is provided between the bottom of a cup 18 and the upper end of the barrel 20, the plunger 3 being biased downwardly by a spring 25, which spring rests 5. in a channel shaped ring 26 against the gasket 24.
The upper ends of the arms 4 are provided with a snap-on cap 27 which in the lowered position of the sprinkler rests in a recess 28 in the upper
10. end of the cup to thereby close the end of the cup and prevent the ingress of dirt and the like into the cup in the lowered position of the sprinkler. The cap 27 is attached centrally of the arms by a snap connection 29 which allows slight movement
15. to provide alignment and sealing in the recess in the lowered position.
By means of the constructions described the rotating head 7 is confined in an upward direction
20. by the end of the shaft 8 contacting the end of the bore in the bearing 5, and at that stage the enlarged part 9 of the shaft is disposed within the dust seal skirt 10 at the bottom of the bearing, but when supply of water Is terminated the rotating head 7 drops but not
25. sufficiently to bring the enlarged part of the shaft 8 out of the skirt 10. This ensures that the shaft itself is protected against dirt, the downward movement being limited by the lower part of the rotating head 7 contacting the upper end of the sleeve 16.
30. The rotating head 7 thus has limited up and down movement, and it will be appreciated that firstly the head has the upwardly protecting shaft 8 protected
OMPI " against contamination because it is housed in the bearing and is protected by the dust seal skirt 10 which accommodates a larger portion 9 of the shaft 8, while the lower end of the head 7 is located 5. loosely in the recess 13 which is formed in the sleeve 16. This then ensures that the rotating head is protected against removal, not only as it is supported against sideways displacement by the shaft 8 engaging in the bearing 5, but by its lower 10. end fitting in the recess 13, limits sideways movement when relatively heavy forces are applied which could otherwise distort the spindle sufficiently to damage the rotating head. The arrangement is such that the lower end of the rotating head is a loose fit 15. in the recess 13 so that it is not guided by the wall of the recess but the wall merely limits excessive displacement of the lower part of the rotating head which as said could cause damage to the spindle or removal of the head. The recess 13 has slots 20. or cut-outs 29 which are provided to allow any dirt or debris or the like which may tend to collect in the recess to be readily thrown out by the rotating head and any water which may tend to collect in the recess, particularly on termination of flow 25. of the water.
As noted above the hollow plunger 3 has grooves 22 to engage over ribs 23 on the barrel, this then limiting the plunger to a vertical movement and 30. preventing rotational movement of the hollow plunger.
The plunger is not a sealing fit within the barrel, but the water pressure Is such that the water acting on the end of the hollow plunger, and
OMPI also on the steps 30 and 31 forming the enlarged lower portion of the plunger ensures that the plunger raises to expose the rotating head above the cup 18. On termination of flow any water which is in
5. the space between the plunger and the barrel can then drain pass the lower end of the plunger, and if that space has water in it as the plunger tends to rise, the water can then flow backwardly past the lower end of the plunger without impeding its
10. upward movement.
This sprinkler as described would be mounted in the garden or lawn or other area with the cap at or just below ground level, the upward movement
15. being sufficient to bring the rotating head above ground level and above any lawn or grass which may be growing around the sprinkler so that the water is directed above this lawn or grass. The cap seals to prevent any entry of dirt or foreign matter into
20. the cup when in the lowered position.
Although one form of the invention has been described in some detail it is to be realised that the invention is not to be limited thereto but can
25. include various modifications falling within the spirit and scope of the Invention.
( OMPI

Claims

The claims defining the invention are as follows:-
1. A pop-up butterfly sprinkler, the sprinkler including a barrel adapted to be attached to a water supply, a hollow plunger operating in said barrel, said plunger being biased downwardly by a spring acting against the bottom end of a cup, said barrel being releasably attached to said cup, a butterfly sprinkler situated within said cup and attached to said hollow plunger, said sprinkler carrying at its top a cap adapted to seat on the top of the
10. cup when the sprinkler is in its lowered position, the arrangement being such that water pressure will raise the plunger and sprinkler thus compressing the spring which returns the sprinkler to its lowered position upon release of water pressure.
2. A pop-up butterfly sprinkler as defined in claim 1 characterised in that the barrel is releasably attached by a bayonet fitting to the bottom of the cup, a gasket being provided between the barrel
5. and said cup.
3. A pop-up butterfly sprinkler as defined In claim 2, characterised in that said springs around said plunger, said plunger having a stepped portion or flange at its lower end to receive said spring, with the upper end of said spring acting on a ring bearing against said gasket.
4. A pop-up butterfly sprinkler as defined in claim 2 characterised in that the lower end of said plunger and the internal surface of the barrel have co-operating means to prevent relative rotation
OMFI 5. therebetween while allowing axial movement there¬ between, the clearance therebetween allowing leakage of water when the water pressure is terminated to allow retraction of said plunger.
5. A pop-up butterfly sprinkler as defined in claim 1 characterised in that said cap is attached to the top of the sprinkler by a central snap-on connection allowing slight movement for sealing
5. alignment in a circumferential recess in the top of the cup with the sprinkler in the lowered position.
6. A pop-up butterfly sprinkler substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
PCT/AU1983/000030 1982-03-05 1983-03-04 Pop-up butterfly sprinkler WO1983003064A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPF2989820305 1982-03-05
AUPF298982 1982-03-05

Publications (1)

Publication Number Publication Date
WO1983003064A1 true WO1983003064A1 (en) 1983-09-15

Family

ID=3769383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1983/000030 WO1983003064A1 (en) 1982-03-05 1983-03-04 Pop-up butterfly sprinkler

Country Status (4)

Country Link
EP (1) EP0101708A4 (en)
NZ (1) NZ203503A (en)
WO (1) WO1983003064A1 (en)
ZA (1) ZA831478B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817869A (en) * 1984-10-24 1989-04-04 Zvi Rubinstein Rotating miniature sprinkler for irrigation systems
EP0478104A3 (en) * 1990-09-26 1992-12-23 Kabushiki Kaisha Powrex Cleaning nozzle
US20150266038A1 (en) * 2014-03-18 2015-09-24 Tony Albert Shelman Deflector cap for preventing a sprinkler from spraying water in a given direction
US9242262B2 (en) 2012-05-25 2016-01-26 Delta Faucet Company Body spray with extending sprayhead

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1171976A (en) * 1975-03-06 1977-09-08 T. Sheets Kerney Projectable lawn sprinkler
US4272024A (en) * 1979-08-27 1981-06-09 Kah Jr Carl L C Sprinkler head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146689B (en) * 1962-03-20 1963-04-04 Perrot Regnerbau G M B H & Co Pop-up sprinkler system
SE405539B (en) * 1972-05-10 1978-12-18 Perrot Regnerbau Gmbh & Co SUBMISSIBLE WATER APPLIANCE
US3785565A (en) * 1973-01-08 1974-01-15 Wet Mfg Co Rotary sprinkler head
US4316579A (en) * 1980-04-11 1982-02-23 Anthony Manufacturing Company Multi-purpose seal for pop-up sprinkler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1171976A (en) * 1975-03-06 1977-09-08 T. Sheets Kerney Projectable lawn sprinkler
US4272024A (en) * 1979-08-27 1981-06-09 Kah Jr Carl L C Sprinkler head

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0101708A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817869A (en) * 1984-10-24 1989-04-04 Zvi Rubinstein Rotating miniature sprinkler for irrigation systems
EP0478104A3 (en) * 1990-09-26 1992-12-23 Kabushiki Kaisha Powrex Cleaning nozzle
US9242262B2 (en) 2012-05-25 2016-01-26 Delta Faucet Company Body spray with extending sprayhead
US20150266038A1 (en) * 2014-03-18 2015-09-24 Tony Albert Shelman Deflector cap for preventing a sprinkler from spraying water in a given direction
US9415405B2 (en) * 2014-03-18 2016-08-16 Tony Albert Shelman Deflector cap for preventing a sprinkler from spraying water in a given direction

Also Published As

Publication number Publication date
EP0101708A4 (en) 1984-08-23
ZA831478B (en) 1983-11-30
EP0101708A1 (en) 1984-03-07
NZ203503A (en) 1987-02-20

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