CA1081484A - Irrigation pipe gate valve - Google Patents
Irrigation pipe gate valveInfo
- Publication number
- CA1081484A CA1081484A CA297,600A CA297600A CA1081484A CA 1081484 A CA1081484 A CA 1081484A CA 297600 A CA297600 A CA 297600A CA 1081484 A CA1081484 A CA 1081484A
- Authority
- CA
- Canada
- Prior art keywords
- slide
- frame
- side portions
- valve
- irrigation pipe
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Landscapes
- Sliding Valves (AREA)
Abstract
Abstract An irrigation pipe laying crosswise of a series of furrows gas gate valves mounted in its side spaced to match each furrow. Each gate valve includes a generally elliptical, elastomeric, grommet-like frame fitting on the periphery of a recessed lip portion of the pipe defining an opening, and also includes a tubular slide slidable in the frame between a closed position and three open positions, one perpendicular to the pipe and two others cocked to either side to direct water to the outer of the three furrows.
Description
1081~84 IMPROVED IRRIGATION PIPE GATE VALVE
This invention relates to an improved irrigation pipe gate valve, and has for an object thereof the provision of a new and improved irrigation pipe gate valve.
There have been various proposals for irrigation pipe gate valves where the valves are mounted directly in the wall of the pipe. With the known valves there is a tendency to produce either a high velocity cylindrical dis-charge or considerable turbulence in the discharge, both of which promote soil erosion.
According to the present invention there is provided in an irrigation pipe gate valve, a substantially rigid, generally elliptical tubular slide having shorter side portions and longer side portions with a plurality of parallel, spaced, exterior circumferential ribs at the shorter side portions thereof, an open outer end and a closed inner end and a plurality of generally circular openings in each of the longer side poTtions thereof and directly opposed to each other, the shorter side portions being imperforate, and a generally elliptical sealing frame of elastomeric material fitting closely on the slide and having an exterior circumferential groove, the frame having an inner lip engaging the slide and forming detents with the ribs, the slide being insertable edgewise through the frame, the slide having an outer flange at its closed end serving as a stop and being adapted to be moved through the frame only when the slide is edgewise to the frame.
With this arrangement, the elliptical tubular slide and the opposed openings in the longer sides gives a smooth, high volume flow with its energy dissipated, thus reducing erosion.
Preferably, the slide can be cocked at an angle relative to the frame to divert water toward the center of the nearest furrow.
In the accompanying drawings which illustrate exemplary embodiments of the present invention:
Figure 1 is a fragmentary, perspective view of an irrigation pipe having a plurality of improved gate valves forming one embodiment of the ~k , .
-` 108148~
invention;
Figure 2 is an enlarged, fragmentary, vertical sectional view taken along line 2-2 of Figure l;
Figure 3 is an enlarged, fIagmentary, partially sectional, perspect-ive view of one of the gate valves of Figure l;
Figure 4 is an enlarged, fragmentary, horizontal sectional view taken along line 4-4 of Figure l; and Figures 5-8 are sectional views of the pipe and one of the valves being installed in the pipe.
Identical improved gate valves 10 forming specific embodiments of the invention are mounted in cup-like, recessed or indented opening portions 12 in an irrigation pipe 14. Each valve includes a softly resilient rubber`or neoprene grommet-like frame 16 and a rigid slide 18 of a tough plastic, such as, for example, polyurethane. Each slide has a tubular body portion 20, which is generally elliptical in transverse cross-section, with a flange or lip 22 forwardly tapered to facilitate insertion of the slide through the frame, rear face of the flange 22 being abrupt to prevent accidentally pushing the slide inwardly out of the frame. The slide has two pairs of large, diametrically opposite circular inlet holes or ports 24, which admit water in opposed streams to somewhat ,..~
clissipate its energy to help prevent soil erosion. A
post-like handle 26 braces the elongated sides of the body 20. An inner end plate or bottom 28 closing the inner end o~ the slide has a somewhat wide flange 30, which acts as a valve closure member and as a stop to prevent outward movement of the slide out of the frame.
Longitudinally spaced pairs of ribs 32 act as detent-li~e stops to hold the slide in selected position~ o~ adjustmen~
relative to the ~rame. The slide can be adjusted longi-tudinally relative to the frame to any of a large numbero~ positions varying from fully open to fully closed.
Also, the slide may be adjusted between a center position in which the slide is perpendicular to the frame and a cocked position directing the water at an acute angle to the pipe, as illustrated in Fig. 4, to direct the water toward the nearest of furrows 34, 36 and 38.
The frame 16 has an endless or generally annular, cup-shaped groove 40 fitting closely on and sealing to planar lip portion 42 and curved transition portion 44 of the indented opening 12. Bevelled lip portion 46 is pressed by water pressure tightly and sealingly against the curved transition portion 44. The frame has a planar inner face 46 and a narrow, thin sealing lip 48 fitting tightly on the body portion 20 of the slide.
To install the valve, with the frame 16 out of the opening 12, the lower edge of the ~lange 30 of the slide 18 is inserted into the opening 12, as shown in Fig~
5. Then the slide is pivoted to insert the rest of the flange into the opening and the slide is pushed fully into the pipe with a wire hood 60 attached to the slide, as '`.:' ' : -. .
shown in Fig, 6. Then the frame 16 is installed, With the components in the positions thereof shown in Fig. 7, the slide is pulled up by the wire hook, is cocked, and is partially drawn through the ~rame, as shown in F~g. 8.
Then the outer end of the slide is snapped ~ully through the frame. The front locking edge 22 of the slide is wider than the opening in the frame so that it is very difiicult to move the edge 22 straight through the opening in the ~rame.
0 ThQ slide 18 will open under vacuum and prevent iailure o~ the aluminum pipe due to a vacuum condition.
The slide cannot be displaced toward closing under pressure due to the ribs 32 on the sides. The sealing lip 48 allows the slide to be opened easily, but is more dif$icult to close, This is an advantage since the slide will not "creep" to a closed position under gated pipe operating pressures. The tapered front edge 22 of the slide aids in easy installation. The slide has a wedg~ portion 29 adjacent ~he ilange 30 to wedge into the frame to com-pletely clo~e the opening eve~ under low water pre~sure.
.
.
`:
_4-
This invention relates to an improved irrigation pipe gate valve, and has for an object thereof the provision of a new and improved irrigation pipe gate valve.
There have been various proposals for irrigation pipe gate valves where the valves are mounted directly in the wall of the pipe. With the known valves there is a tendency to produce either a high velocity cylindrical dis-charge or considerable turbulence in the discharge, both of which promote soil erosion.
According to the present invention there is provided in an irrigation pipe gate valve, a substantially rigid, generally elliptical tubular slide having shorter side portions and longer side portions with a plurality of parallel, spaced, exterior circumferential ribs at the shorter side portions thereof, an open outer end and a closed inner end and a plurality of generally circular openings in each of the longer side poTtions thereof and directly opposed to each other, the shorter side portions being imperforate, and a generally elliptical sealing frame of elastomeric material fitting closely on the slide and having an exterior circumferential groove, the frame having an inner lip engaging the slide and forming detents with the ribs, the slide being insertable edgewise through the frame, the slide having an outer flange at its closed end serving as a stop and being adapted to be moved through the frame only when the slide is edgewise to the frame.
With this arrangement, the elliptical tubular slide and the opposed openings in the longer sides gives a smooth, high volume flow with its energy dissipated, thus reducing erosion.
Preferably, the slide can be cocked at an angle relative to the frame to divert water toward the center of the nearest furrow.
In the accompanying drawings which illustrate exemplary embodiments of the present invention:
Figure 1 is a fragmentary, perspective view of an irrigation pipe having a plurality of improved gate valves forming one embodiment of the ~k , .
-` 108148~
invention;
Figure 2 is an enlarged, fragmentary, vertical sectional view taken along line 2-2 of Figure l;
Figure 3 is an enlarged, fIagmentary, partially sectional, perspect-ive view of one of the gate valves of Figure l;
Figure 4 is an enlarged, fragmentary, horizontal sectional view taken along line 4-4 of Figure l; and Figures 5-8 are sectional views of the pipe and one of the valves being installed in the pipe.
Identical improved gate valves 10 forming specific embodiments of the invention are mounted in cup-like, recessed or indented opening portions 12 in an irrigation pipe 14. Each valve includes a softly resilient rubber`or neoprene grommet-like frame 16 and a rigid slide 18 of a tough plastic, such as, for example, polyurethane. Each slide has a tubular body portion 20, which is generally elliptical in transverse cross-section, with a flange or lip 22 forwardly tapered to facilitate insertion of the slide through the frame, rear face of the flange 22 being abrupt to prevent accidentally pushing the slide inwardly out of the frame. The slide has two pairs of large, diametrically opposite circular inlet holes or ports 24, which admit water in opposed streams to somewhat ,..~
clissipate its energy to help prevent soil erosion. A
post-like handle 26 braces the elongated sides of the body 20. An inner end plate or bottom 28 closing the inner end o~ the slide has a somewhat wide flange 30, which acts as a valve closure member and as a stop to prevent outward movement of the slide out of the frame.
Longitudinally spaced pairs of ribs 32 act as detent-li~e stops to hold the slide in selected position~ o~ adjustmen~
relative to the ~rame. The slide can be adjusted longi-tudinally relative to the frame to any of a large numbero~ positions varying from fully open to fully closed.
Also, the slide may be adjusted between a center position in which the slide is perpendicular to the frame and a cocked position directing the water at an acute angle to the pipe, as illustrated in Fig. 4, to direct the water toward the nearest of furrows 34, 36 and 38.
The frame 16 has an endless or generally annular, cup-shaped groove 40 fitting closely on and sealing to planar lip portion 42 and curved transition portion 44 of the indented opening 12. Bevelled lip portion 46 is pressed by water pressure tightly and sealingly against the curved transition portion 44. The frame has a planar inner face 46 and a narrow, thin sealing lip 48 fitting tightly on the body portion 20 of the slide.
To install the valve, with the frame 16 out of the opening 12, the lower edge of the ~lange 30 of the slide 18 is inserted into the opening 12, as shown in Fig~
5. Then the slide is pivoted to insert the rest of the flange into the opening and the slide is pushed fully into the pipe with a wire hood 60 attached to the slide, as '`.:' ' : -. .
shown in Fig, 6. Then the frame 16 is installed, With the components in the positions thereof shown in Fig. 7, the slide is pulled up by the wire hook, is cocked, and is partially drawn through the ~rame, as shown in F~g. 8.
Then the outer end of the slide is snapped ~ully through the frame. The front locking edge 22 of the slide is wider than the opening in the frame so that it is very difiicult to move the edge 22 straight through the opening in the ~rame.
0 ThQ slide 18 will open under vacuum and prevent iailure o~ the aluminum pipe due to a vacuum condition.
The slide cannot be displaced toward closing under pressure due to the ribs 32 on the sides. The sealing lip 48 allows the slide to be opened easily, but is more dif$icult to close, This is an advantage since the slide will not "creep" to a closed position under gated pipe operating pressures. The tapered front edge 22 of the slide aids in easy installation. The slide has a wedg~ portion 29 adjacent ~he ilange 30 to wedge into the frame to com-pletely clo~e the opening eve~ under low water pre~sure.
.
.
`:
_4-
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In an irrigation pipe gate valve, a substantially rigid, generally elliptical tubular slide having shorter side portions and longer side portions with a plurality of parallel, spaced, exterior circumferential ribs at the shorter side portions thereof, an open outer end and a closed inner end and a plurality of generally circular openings in each of the longer side portions thereof and directly opposed to each other, the shorter side portions being imperforate, and a generally elliptical sealing frame of elastomeric material fitting closely on the slide and having an exterior circumferential groove, the frame having an inner lip engaging the slide and forming detents with the ribs, the slide being insertable edgewise through the frame, the slide having an outer flange at its closed end serving as a stop and being adapted to be moved through the frame only when the slide is edgewise to the frame.
2. The valve of claim 1 wherein there are two pairs of directly opposed openings and all the openings are parallel.
3. The valve of claim 1 wherein the slide can be cocked at an angle relative to the frame and held in such a cocked position.
4. The valve of claim 1 wherein the slide has a bar serving as a handle.
5. The valve of claim 1 wherein the slide has a tapered portion joining the flange to jam against the frame when the slide is in a closing position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77524477A | 1977-03-07 | 1977-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081484A true CA1081484A (en) | 1980-07-15 |
Family
ID=25103786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA297,600A Expired CA1081484A (en) | 1977-03-07 | 1978-02-23 | Irrigation pipe gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1081484A (en) |
-
1978
- 1978-02-23 CA CA297,600A patent/CA1081484A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI100775B (en) | Valve for dispensing fluid | |
| US4696322A (en) | Faucet valve with anti-siphon back flow preventer | |
| EP0452045B1 (en) | Normally closed duckbill valve assembly | |
| US5829686A (en) | Irrigation emitters having reduced sensitivity to clogging | |
| US4065095A (en) | Fluid level control valve | |
| IL114190A (en) | Valve assembly | |
| CA2039034A1 (en) | Flap valve | |
| MXPA97006624A (en) | A gas valve for surging a pulse of | |
| US6752167B1 (en) | Freeze resistant automatic draining wall hydrant with dual check vacuum breaker | |
| US7188641B2 (en) | Water valve assembly for bathroom faucets | |
| WO2020254801A1 (en) | Drain valve | |
| US4945941A (en) | Means to reduce vibration in check valves and stop/check valves caused by pulsating low fluid flow | |
| US6874760B2 (en) | Angled-slit bite-valve | |
| CA1081484A (en) | Irrigation pipe gate valve | |
| US6062249A (en) | Faucet side spray diverter | |
| US5116019A (en) | Control valve | |
| KR100922874B1 (en) | Water conduit | |
| US4190232A (en) | Irrigation pipe gate valve | |
| US4023595A (en) | Flowrate control device | |
| KR102530087B1 (en) | Check valve for water jet loom | |
| US4922960A (en) | Self venting drain valve | |
| KR102462284B1 (en) | Check valve for water jet loom | |
| US6145533A (en) | Air release valve | |
| JPH0747860B2 (en) | Equipment for flow restrictors | |
| JPS598711B2 (en) | Valves, especially valves for automobile glass washing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |