CN103263984A - Irrigating device - Google Patents
Irrigating device Download PDFInfo
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- CN103263984A CN103263984A CN2013101392091A CN201310139209A CN103263984A CN 103263984 A CN103263984 A CN 103263984A CN 2013101392091 A CN2013101392091 A CN 2013101392091A CN 201310139209 A CN201310139209 A CN 201310139209A CN 103263984 A CN103263984 A CN 103263984A
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Abstract
An irrigating device comprises a housing, a water inlet and a water outlet. A pressure limit valve communicated between the water inlet and the water outlet is arranged in the housing and composed of a valve body, a pressure ring, a valve spool, a diaphragm, springs and a valve bonnet. A nozzle is detachably mounted on the water outlet and provided with a water outlet passage communicated with the water outlet. The irrigating device further comprises a support. The head of the support is detachably sleeved to the nozzle, and a water diversion seat is detachably mounted on the tail of the support and provided with a first water diversion block opposite to the outlet of the nozzle. The irrigating device has the advantages that by the aid of the irrigating device, constant pressure can be realized effectively, damage of internal structure due to overhigh water pressure is prevented, and service life of the irrigating device is prolonged. Further, the irrigating device is easy to replace and convenient to use as the nozzle and the housing as well as the water diversion seat and the support are in detachable connection.
Description
Technical field
The present invention relates to a kind of irrigation rig.
Background technology
For agricultural, forestry and gardens, irrigation technique has obtained large tracts of land and has promoted.And existing irrigation rig is in use, and the permission to use pressure that supplies water is had certain requirement, if excessive its impulsive force of hydraulic pressure causes damage to the internal structure of irrigation rig easily, thus the service life of shortening irrigation rig.
Summary of the invention
There is above-mentioned deficiency in the prior art in order to overcome; the invention provides a kind of simple in structure, the irrigation rig that can realize constant voltage; be provided with constant pressure valve in it and can effectively protect the unlikely hydraulic pressure that is subjected to of the internal structure of irrigation rig excessive and cause damage, prolong its service life.
The technical scheme that the present invention solves its technical problem is: a kind of irrigation rig, comprise the housing that links to each other with water pipe and have cavity, two of this housing is provided with water inlet and delivery port, the diameter of described delivery port is less than the diameter of described water inlet, the pressure ring and the valve gap that are provided with the valve body with inner chamber in the described cavity and are located at this valve body two, the center of the end of described delivery port is provided with the rounded stops that links to each other with valve gap, is formed with the outlet pass that is communicated with described inner chamber and water inlet between the outer wall of this rounded stops and the inwall of described valve gap;
Axial slip has a spool in the described inner chamber, be provided with the through hole that is communicated with described outlet pass and delivery port in this spool, the head of this spool cooperates with the head seal of described inner chamber, thereby and the end of the head of this spool can be stretched in the described valve gap and contact with described rounded stops and to disconnect being communicated with of described outlet pass and through hole;
Also comprise a barrier film, the outer end edges of this barrier film is clamped between described valve body and the pressure ring hermetically, the edge, inner end of this barrier film is fixed on the described spool hermetically, the described inner chamber that described barrier film will be positioned at described spool outside is separated into counter balance pocket and sealed air-space, be provided with the spring that is supported between described spool and the valve body in the sealing air cavity, be formed with the water channel that is communicated with that is communicated with described counter balance pocket and delivery port on the outer wall of the afterbody of described spool;
The dismountable nozzle that is equipped with in described delivery port place is provided with the exhalant canal that is connected with described delivery port in this nozzle;
Also comprise a support, the head of this support is dismountable to be sleeved on outside the described nozzle, the rear removable of this support a separating stand is installed, this separating stand is provided with the first fen water piece relative with the outlet of described nozzle.
Further, the outer wall of described spool is provided with the taper annular groove that a spool baffle ring and that extends radially outward sets to the concave, this taper annular groove is deeper than this taper annular groove near an end of described spool baffle ring away from an end of described spool baffle ring, also comprise the retainer ring that the described spool of a suit is outer, the inner end of this retainer ring is extended with a conical ring that is complementary with described taper annular groove vertically, offer a plurality of flutings on this conical ring, the outer wall of the inwall of this conical ring and described taper annular groove is close to and the end of this conical ring is against on the sidewall of described taper annular groove away from an end of described spool baffle ring, and the outer end of described retainer ring is provided with a back-up ring towards described spool baffle ring projection;
Described barrier film comprises that cross section is U-shaped flexible partition body, the inner end of this septum body is higher than the outer end of described septum body, the inner end of this septum body is inside, the outer end outwards all radially is extended with flange, the end of this flange has bellend, the flange of the inner end of described septum body is clamped between described back-up ring and the spool baffle ring, and the bellend of the inner end of described septum body places in the space that described spool baffle ring, retainer ring and back-up ring surround.
The installation of being convenient to barrier film is set like this, when barrier film is installed, Fixing shrink ring is contained on the spool, flange with the inner end of barrier film places between spool baffle ring and the back-up ring then, and the bellend of the inner end of barrier film is positioned at the spool baffle ring, in the space that retainer ring and back-up ring surround, promote retainer ring to the spool baffle ring then, make conical ring on the retainer ring along fluting spreading and placing in the taper annular groove, and the outer wall of the inwall of conical ring and taper annular groove is adjacent to, the end of conical ring is against on the sidewall of the darker end of taper annular groove, and back-up ring and spool baffle ring are drawn close mutually and the flange of the inner end of barrier film is clamped, and realize the installation of barrier film.
Further, be concaved with locating slot on the end face of the head of described valve body, it is protruding to convex with the location that can embed in the described locating slot on the end face of described valve gap, is convenient to position when mounted;
A described retainer ring side of described spool baffle ring dorsad is concaved with the spring mounting groove, and the head of described valve body is provided with the spring supporting seat, and the two ends of described spring are installed in respectively on described spring mounting groove and the spring supporting seat, are convenient to the installation of spring;
Described connection water channel comprises a plurality of breach of being formed on the described spool end and arranges and be communicated with the wherein groove of a breach and described counter balance pocket along the outer wall depression of described spool, and is simple in structure.
Further, the cross section of described exhalant canal is tapered, and the inlet diameter of described exhalant canal is greater than the outlet diameter of described exhalant canal, effect with constant current is set like this, in use, current flow out from delivery port, thereby the outlet ejection from the exhalant canal of nozzle forms water column then, when current pass through from the exhalant canal of nozzle, because exhalant canal is arranged to taper, thereby make current compile in the exit of exhalant canal, even it is suddenly big or suddenly small from the current that delivery port flows out, and namely become the water column of fixed size from the water column that exhalant canal flows out, thus when irrigating, can avoid irrigating inhomogeneous defective, thus reach the effect of conserve water resource;
Convex with the flow deflector that multi-disc distributes vertically on the inwall of described delivery port, the setting of flow deflector can prevent the generation of eddy current, and flow deflector can be arranged to six, and is evenly distributed on the inwall of delivery port better effects if;
The head of described support is provided with the outer nozzle casing of front end that is positioned at described nozzle, radially offer the negative pressure hole that at least one runs through this nozzle casing on this nozzle casing, the axle center of this negative pressure hole is lower than the front end of described nozzle, effect with anti-negative pressure is set like this, during use, current flow out from delivery port, thereby the outlet ejection from the exhalant canal of nozzle forms water column then, spray from nozzle casing at last, thereby the air in the nozzle casing can be taken away after nozzle casing ejection when water column and in nozzle casing, to form negative pressure, and the air of outside can be added in the nozzle casing from the negative pressure hole on the nozzle casing, make and can not produce negative pressure in the nozzle casing, thereby preventing that water column from producing disperses, and guarantees irrigation effect.
Further, in comprising, described nozzle is provided with the nozzle body of described exhalant canal, the head of this nozzle body is set with a nozzle baffle ring outward, link to each other by a plurality of connection straps that are positioned on the same circumference between the outside of the inboard of this nozzle baffle ring and the afterbody of described nozzle body, be formed with container cavity between the inboard of this connection strap and the outer wall of described nozzle body, be formed with between two adjacent described connection straps and stretch out groove, the outer wall that described housing is positioned at described delivery port place stretches into described container cavity and radially outwards convexes with the described connection bump of stretching out groove of insertion, it is outer and be provided with external screw thread that the lateral wall of this connection bump stretches out the described groove that stretches out, and it is outer and be provided with the internal thread that is complementary with described external screw thread that the head of described support is sleeved on described connection bump.Arrange like this and be convenient to change nozzle, when mounted, nozzle cage is contained in outside the delivery port of housing, and the connection bump on the housing stretches into stretching out in the groove of nozzle, then support casing is contained in outside the connection bump, turn support then, make support and housing realize being threaded, thereby nozzle is fixed between support and the housing.When dismounting, only need back out support, just nozzle can be taken off then.Exhalant canal in the nozzle can be made plurality of specifications, when needs change the ejection water column size of nozzle, only needs to change nozzle and gets final product, and uses very convenient.
Further, the medial end that is positioned at described internal thread in the described support inwardly shrinks and is formed with position limiting convex ring, the afterbody of described nozzle body is provided with the spacing shaft shoulder that is complementary with described position limiting convex ring, described housing is provided with support ring, described nozzle baffle ring is between the end and described support ring of described support, described housing is provided with sealing gasket between the diapire of the end face at described delivery port place and described container cavity, simple in structure, good sealing effect.
Further, described separating stand inward at both ends vertically is concaved with cavity, and the diapire of this cavity is provided with a plurality of draw-in grooves that run through vertically, and these a plurality of draw-in grooves are evenly distributed on the same circumference, is evenly equipped with a plurality of mounting grooves on the sidewall of described cavity;
Described support is provided with the annular fixed part that can stretch in the described cavity, convexes with the projection that can place in the described mounting groove on the outer circumference surface of this fixed part;
Also be provided with second fen water piece on the described separating stand, this second fen water piece and first fen water piece lay respectively at described separating stand vertically two ends and be oppositely arranged, be respectively equipped with on the outside end face of this first fen water piece and second fen water piece can be relative with the outlet of described nozzle first fen water surface and second fen water surface, outward extending a plurality of flexible feet vertically on the excircle of the inboard of this first fen water piece and second fen water piece, the outside of the end of this flexible feet is provided with trip, and what the trip on described first minute water piece and the second fen water piece staggered mutually is stuck in the described draw-in groove.
When mounted, thereby the draw-in groove that is stuck on the separating stand that staggers mutually by the trip on first fen water piece and the second fen water piece is installed to first fen water piece and second fen water piece on the separating stand, the water piece can be used for water distribution in a big way in first minute, the water piece can be used for water distribution more among a small circle in second minute, the fixed part of support is stretched in the cavity of separating stand, rotate separating stand then, the projection on the fixed part changes in the mounting groove, thereby realizes the installation of separating stand.When the dismounting separating stand, only need the backward rotation separating stand, projection on the support is shifted out from the mounting groove on the separating stand to get final product, in the irrigation process, can regulate the mounting means of separating stand according to the size of water distribution scope, thereby make corresponding branch water piece relative with the outlet of nozzle, satisfy the irrigation demand, not only have two kinds of water distribution manners, and change very convenient.
Further, the described first minute water surface comprises the circular flat of the center that is positioned at the described first minute water surface, and the high inboard low taper seat of periphery and outer that is positioned at this circular flat, be concaved with a plurality of first bypass channels that distribute and be connected with described circular flat radially on this taper seat, in use, make first fen water surface relative with the outlet of nozzle, water column can be ejected into earlier on the circular flat after the outlet ejection of nozzle, and then from each first bypass channel of taper seat to around splash, because first fen water surface is made up of taper seat and circular flat, taper seat is high inboard low being obliquely installed in outer, and first bypass channel on the taper seat also is high outside and low outside being obliquely installed, water column is after first bypass channel comes out to be dispersed outside being tilted to, under the gravity effect, be sprayed at the place that needs pouring then uniformly, not only water distribution is even, and the bigger occasion of suitable water distribution scope;
The water surface comprised the center that is positioned at the described second minute water surface and the conical guide face that outwards is convexly equipped with in described second minute, and be positioned at the high inboard low arc surface in this taper shape guide face periphery and outer, be concaved with a plurality of second bypass channels that distribute and be connected with described conical guide face radially on this arc surface, in use, make second fen water surface relative with the outlet of nozzle, water column is ejected into earlier on the conical guide face after the outlet ejection of nozzle, flow to each second bypass channel of arc surface then along conical guide face, at last from each second bypass channel to around splash, because second fen water surface is made up of conical guide face and arc surface, arc surface is the high inboard low curve setting in outer, and second bypass channel on the arc surface also is high outside and low outside curve setting, water column comes out from second bypass channel, and the back is curved disperses downwards, under the gravity effect, be sprayed at the place that needs pouring then uniformly, not only water distribution is even, and the less occasion of suitable water distribution scope;
Outwards convex with at least two on the described arc surface along radially-arranged minute water boss of described arc surface, this minute the water boss exceed described arc surface, thereby water column is divided the position ejection that can avoid behind the water from minute water boss place to impact on the support by second bypass channel;
The outer circumference surface of described separating stand is provided with anti-skidding line, is convenient to rotate separating stand;
The inboard of described flexible feet is provided with convex tendon, and this convex tendon can place in the draw-in groove of separating stand, thereby flexible feet is fixed, so that first fen water piece and second fen water piece are installed on the separating stand reliably.
Further, described mounting groove is surrounded by first plate that is positioned at described cavity and second plate, this first plate is radially extended by the sidewall of described cavity, and the inner end of this first plate links to each other with the diapire of described cavity is vertical, the outside end face of the outer end of this first plate and described separating stand flushes, described second plate is vertical on the outboard end of described separating stand, and the head of described second plate links to each other with the outer end of described first plate is vertical, described first plate, second plate, and the described mounting groove of formation between the diapire of cavity, form the entrance of described mounting groove between the afterbody of described second plate and the diapire of described cavity, simple in structure;
The afterbody of described second plate is provided with the inclined-plane of meeting to the entrance of described mounting groove, and the end, inner end that is positioned at described inclined-plane on described second plate is provided with spacing protruding, and the setting on inclined-plane is convenient to projection and is entered in the mounting groove, and the spacing protruding projection that prevents shifts out in mounting groove;
Between adjacent two described mounting grooves, outwards convex with locating piece on the diapire of described cavity, this locating piece is positioned at the outside of described draw-in groove, between adjacent two described projectioies, be formed with hollow slots on the outer circumference surface of described fixed part, be formed with resilient projection on the position relative with described hollow slots on the end face of described fixed part, this resilient projection can be supported on the described locating piece, in the time of in projection changes mounting groove over to, the resilient projection strain also pushes against on locating piece, fixed part is mobile outside cavity under the effect of resilient projection, thereby projection and the inwall of mounting groove are offseted, thereby make the installation of separating stand and support more firm, when separating stand is disassembled from support, only need to press separating stand to holder orientation, make resilient projection produce distortion, and projection does not offset with the inwall of mounting groove, simultaneously the rotary return seat, thereby make projection produce mounting groove, can realize the dismounting of separating stand.
Further, described housing comprises and connects housing and be connected lid, this connection lid be connected housing and connect by screw, described connection housing is provided with described water inlet, be provided with the connection internal thread in this water inlet, described connection lid is provided with described delivery port, between the afterbody of described connection lid and spool, be connected between lid and the pressure ring, be connected between housing, valve body, valve gap, the spool and be equipped with sealing ring, good sealing effect.
The present invention when mounted, earlier first fen water piece and second fen water piece are installed to the two ends of separating stand, then separating stand is installed on the afterbody of support, head with support is installed on the housing then, and nozzle is fixed on the housing by support, first fen water piece is relative with the outlet of nozzle with a branch water piece among second fen water piece, and the water inlet of housing links to each other with water pipe, and the pressure limiting valve of being made up of valve body, valve gap, spool, barrier film, spring etc. is installed in the housing.
In use, when the intake pressure on the water inlet during less than permission to use pressure of the present invention, at this moment, spool is motionless, and the water in the water pipe enters in the through hole of spool from the outlet pass of water inlet on valve gap, again in the exhalant canal by the delivery port flow nozzle, thereby the outlet ejection from exhalant canal forms water column then, thereby water column ejection back impacts on the branch water piece that is positioned at nozzle the place ahead, thereby by minute water piece water column is disperseed to realize pouring to splash all around.When the intake pressure on the water inlet during greater than permission to use pressure of the present invention, delivery port can't be dredged the water of coming in from water inlet fully, thereby there is part water to enter in the counter balance pocket by the connection water channel on the afterbody of spool, when the pressure in the counter balance pocket during greater than the spring force of sealed air-space inner spring, thereby promoting spool moves to valve gap, and spring is compressed, the head of spool is close with rounded stops gradually, thereby seal outlet pass gradually, reduce the water yield in the through hole that flows into spool, thereby reduce the hydraulic pressure of delivery port.And when the head of spool contacts with rounded stops fully, thereby outlet pass is blocked, and then reached the effect of high discharge pressure of restriction.When the pressure in the counter balance pocket during less than the spring force of sealed air-space inner spring, the spring return, thereby promote spool away from valve gap, outlet pass is opened, recover water flowing, thereby realize the effect of constant voltage, guarantee that the unlikely hydraulic pressure that is subjected to of internal structure of the present invention is excessive and cause damage, and then prolong service life of the present invention.
When needs are replaced with another kind of water distribution manner, only need separating stand is disassembled from support, turning the other end that separating stand makes separating stand then is installed on the support, can make another minute water piece on the separating stand relative with the outlet of nozzle, irrigate requirement thereby satisfy, thereby make the present invention have two kinds of water distribution manners, change also very convenient.
Exhalant canal in the nozzle can be made plurality of specifications, when needs change the ejection water column size of nozzle, only needs to change nozzle and gets final product, and when changing nozzle, only support need be backed out, change suitable nozzle then, by support nozzle is fixed on the housing at last and get final product.
Beneficial effect of the present invention is: adopt said structure, can effectively realize the effect of constant voltage, thereby protect the unlikely hydraulic pressure that is subjected to of internal structure of the present invention excessive and cause damage, and then prolong the service life of irrigation rig; And between nozzle and the housing, be dismountable connected mode between separating stand and the support, thereby be easy to change, use more convenient.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is exploded perspective view of the present invention.
Fig. 3 is the structural representation of spool of the present invention.
Fig. 4 is the structural representation of retainer ring of the present invention.
Fig. 5 is the scheme of installation of barrier film of the present invention.
Fig. 6 is the structural representation of housing of the present invention.
Fig. 7 is structure of nozzle schematic diagram of the present invention.
Fig. 8 is the structural representation of support of the present invention.
Fig. 9 is the structural representation of separating stand of the present invention.
Figure 10 is the structural representation of a branch water piece of the present invention.
Figure 11 is the structural representation of another minute of the present invention water piece.
Figure 12 is the scheme of installation of of the present invention minute water piece and separating stand.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
With reference to Fig. 1, Fig. 2, a kind of irrigation rig, comprise the housing that links to each other with water pipe and have cavity, two of this housing is provided with water inlet 1 and delivery port 2, the diameter of described delivery port 2 is less than the diameter of described water inlet 1, the pressure ring 4 and the valve gap 5 that are provided with the valve body 3 with inner chamber in the described cavity and are located at these valve body 3 two, the center of the end of described delivery port 2 is provided with the rounded stops 6 that links to each other with valve gap 5, is formed with the outlet pass 7 that is communicated with described inner chamber and water inlet 1 between the inwall of the outer wall of this rounded stops 6 and described valve gap 5;
Axial slip has a spool 8 in the described inner chamber, be provided with the through hole 9 that is communicated with described outlet pass 7 and delivery port 2 in this spool 8, the head of this spool 8 cooperates with the head seal of described inner chamber, thereby and the end of the head of this spool 8 can stretch into to contact in the described valve gap 5 and with described rounded stops 6 and disconnect being communicated with of described outlet pass 7 and through hole 9;
Also comprise a barrier film 10, the outer end edges of this barrier film 10 is clamped between described valve body 3 and the pressure ring 4 hermetically, the edge, inner end of this barrier film 10 is fixed on the described spool 8 hermetically, the described inner chamber that described barrier film 10 will be positioned at described spool 8 outsides is separated into counter balance pocket 11 and sealed air-space 12, be provided with the spring 13 that is supported between described spool 8 and the valve body 3 in the sealing air cavity 12, be formed with the water channel that is communicated with that is communicated with described counter balance pocket 11 and delivery port 2 on the outer wall of the afterbody of described spool 8;
The dismountable nozzle 14 that is equipped with in described delivery port 2 places is provided with the exhalant canal 15 that is connected with described delivery port 2 in this nozzle 14;
Also comprise a support 16, the head of this support 16 is dismountable to be sleeved on outside the described nozzle 14, the rear removable of this support 16 a separating stand 17 is installed, this separating stand 17 is provided with the first fen water piece 18 relative with the outlet of described nozzle 14.
With reference to Fig. 3, Fig. 4, Fig. 5, the outer wall of described spool 8 is provided with the taper annular groove 20 that a spool baffle ring 19 and that extends radially outward sets to the concave, this taper annular groove 20 is deeper than this taper annular groove 20 near an end of described spool baffle ring 19 away from an end of described spool baffle ring 19, also comprise the retainer ring 21 outside the described spool 8 of a suit, the inner end of this retainer ring 21 is extended with a conical ring 22 that is complementary with described taper annular groove 20 vertically, offer a plurality of flutings 23 on this conical ring 22, the outer wall of the inwall of this conical ring 22 and described taper annular groove 20 is close to and the end of this conical ring 22 is against on the sidewall of described taper annular groove 20 away from an end of described spool baffle ring 19, and the outer end of described retainer ring 21 is provided with a back-up ring 24 towards described spool baffle ring 19 projectioies;
Described barrier film 10 comprises that cross section is U-shaped flexible partition body 10-1, the inner end of this septum body 10-1 is higher than the outer end of described septum body 10-1, the inner end of this septum body 10-1 is inside, the outer end outwards all radially is extended with flange 10-2, the end of this flange 10-2 has bellend 10-3, the flange 10-2 of the inner end of described septum body 10-1 is clamped between described back-up ring 24 and the spool baffle ring 19, and the bellend 10-3 of the inner end of described septum body 10-1 places in the space that described spool baffle ring 19, retainer ring 21 and back-up ring 24 surround.
The installation of being convenient to barrier film 10 is set like this, when barrier film 10 is installed, retainer ring 21 is sleeved on the spool 8, flange 10-2 with the inner end of barrier film 10 places between spool baffle ring 19 and the back-up ring 24 then, and the bellend 10-3 of the inner end of barrier film 10 is positioned at spool baffle ring 19, in the space that retainer ring 21 and back-up ring 24 surround, promote retainer ring 21 to spool baffle ring 19 then, make conical ring 22 on the retainer ring 21 along fluting 23 spreadings and place in the taper annular groove 20, and the outer wall of the inwall of conical ring 22 and taper annular groove 20 is adjacent to, the end of conical ring 22 is against on the sidewall of the darker end of taper annular groove 20, and back-up ring 24 is drawn close mutually with spool baffle ring 19 and the flange 10-2 of the inner end of barrier film 10 is clamped, and realizes the installation of barrier film 10.
Be concaved with locating slot 25 on the end face of the head of described valve body 3, it is protruding 26 to convex with the location that can embed in the described locating slot 25 on the end face of described valve gap 5, is convenient to position when mounted;
Described retainer ring 21 side of described spool baffle ring 19 dorsad is concaved with spring mounting groove 27, the head of described valve body 3 is provided with spring supporting seat 28, the two ends of described spring 13 are installed in respectively on described spring mounting groove 27 and the spring supporting seat 28, are convenient to the installation of spring 13;
Described connection water channel comprises a plurality of breach 29 of being formed on described spool 8 end faces and arranges and be communicated with the wherein groove 30 of a breach 29 and described counter balance pocket 11 along the outer wall depression of described spool 8, and is simple in structure.
The cross section of described exhalant canal 15 is tapered, and the inlet diameter of described exhalant canal 15 is greater than the outlet diameter of described exhalant canal 15, effect with constant current is set like this, in use, current flow out from delivery port 2, thereby the outlet ejection from the exhalant canal 15 of nozzle 14 forms water column then, when current pass through from the exhalant canal 15 of nozzle 14, because exhalant canal 15 is arranged to taper, thereby make current compile in the exit of exhalant canal 15, even it is suddenly big or suddenly small from the current that delivery port 2 flows out, and namely become the water column of fixed size from the water column that exhalant canal 15 flows out, thereby when irrigating, can avoid irrigating inhomogeneous defective, thereby reach the effect of conserve water resource;
Convex with the flow deflector 31 that multi-disc distributes vertically on the inwall of described delivery port 2, the setting of flow deflector 31 can prevent the generation of eddy current, and in the present embodiment, flow deflector 31 is arranged to six, and is evenly distributed on the inwall of delivery port 2 better effects if;
The head of described support 16 is provided with the outer nozzle casing 32 of front end that is positioned at described nozzle 14, radially offer at least one negative pressure hole that runs through this nozzle casing 32 33 on this nozzle casing 32, in the present embodiment, negative pressure hole 33 is provided with three, and be evenly distributed on the nozzle casing 32, the axle center of this negative pressure hole 33 is lower than the front end of described nozzle 14, effect with anti-negative pressure is set like this, during use, current flow out from delivery port 2, thereby the outlet ejection from the exhalant canal 15 of nozzle 14 forms water column then, at last from nozzle casing 32 ejections, thereby when water column can be taken away the air in the nozzle casing 32 formation negative pressure in nozzle casing 32 after nozzle casing 32 ejections, and the air of outside can be added in the nozzle casing 32 from the negative pressure hole 33 on the nozzle casing 32, make can not produce negative pressure in the nozzle casing 32, thereby preventing that water column from producing disperses, and guarantees irrigation effect.
With reference to Fig. 6, Fig. 7, in comprising, described nozzle 14 is provided with the nozzle body 34 of described exhalant canal 15, the head of this nozzle body 34 is set with a nozzle baffle ring 35 outward, link to each other by a plurality of connection straps 36 that are positioned on the same circumference between the outside of the inboard of this nozzle baffle ring 35 and the afterbody of described nozzle body 34, be formed with container cavity 37 between the outer wall of the inboard of this connection strap 36 and described nozzle body 34, be formed with between two adjacent described connection straps 36 and stretch out groove 38, the outer wall that described housing is positioned at described delivery port 2 places stretches into described container cavity 37 and radially outwards convexes with the described connection bump 39 of stretching out groove 38 of insertion, it is outer and be provided with external screw thread 40 that the lateral wall of this connection bump 39 stretches out the described groove 38 of stretching out, the head of described support 16 is sleeved on outside the described connection bump 39 and is provided with the internal thread that is complementary with described external screw thread 40, nozzle body 34, nozzle baffle ring 35 and connection strap 36 are one-body molded.Arrange like this and be convenient to change nozzle 14, when mounted, nozzle 14 is sleeved on outside the delivery port 2 of housing, and the connection bump on the housing 39 stretches into stretching out in the groove 38 of nozzle 14, then support 16 is sleeved on outside the connection bump 39, turn support 16 then, make support 16 and housing realize being threaded, thereby nozzle 14 is fixed between support 16 and the housing.When dismounting, only need back out support 16, just nozzle 14 can be taken off then.Exhalant canal 15 in the nozzle 14 can be made plurality of specifications, when needs change the ejection water column size of nozzle 14, only needs to change nozzle 14 and gets final product, and uses very convenient.
The medial end that is positioned at described internal thread in the described support 16 inwardly shrinks and is formed with position limiting convex ring 41, the afterbody of described nozzle body 34 is provided with the spacing shaft shoulder 42 that is complementary with described position limiting convex ring 41, described housing is provided with support ring 43, described nozzle baffle ring 35 is between the end and described support ring 43 of described support 16, described housing is provided with sealing gasket 44 between the diapire of the end face at described delivery port 2 places and described container cavity 37, simple in structure, good sealing effect.
Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, described separating stand 17 inward at both ends vertically is concaved with cavity 45, the diapire of this cavity 45 is provided with a plurality of draw-in grooves that run through vertically 46, and these a plurality of draw-in grooves 46 are evenly distributed on the same circumference, are evenly equipped with a plurality of mounting grooves 47 on the sidewall of described cavity 45;
Described support 16 is provided with the annular fixed part 48 that can stretch in the described cavity 45, convexes with the projection 49 that can place in the described mounting groove 47 on the outer circumference surface of this fixed part 48;
Also be provided with second fen water piece 50 on the described separating stand 17, this second fen water piece 50 and first fen water piece 18 lay respectively at described separating stand 17 vertically two ends and be oppositely arranged, be respectively equipped with on the outside end face of this first fen water piece 18 and second fen water piece 50 can be relative with the outlet of described nozzle 14 first fen water surface and second fen water surface, outward extending a plurality of flexible feet 51 vertically on the excircle of the inboard of this first fen water piece 18 and second fen water piece 50, the outside of the end of this flexible feet 51 is provided with trip 52, and what the trip 52 on described first minute water piece 18 and the second fen water piece 50 staggered mutually is stuck in the described draw-in groove 46.
When mounted, thereby the draw-in groove 46 that is stuck on the separating stand 17 that staggers mutually by the trip 52 on first fen water piece 18 and the second fen water piece 50 is installed to first fen water piece 18 and second fen water piece 50 on the separating stand 17, water piece 18 can be used for water distribution in a big way in first minute, water piece 50 can be used for water distribution more among a small circle in second minute, the fixed part 48 of support 16 is stretched in the cavity 45 of separating stand 17, rotate separating stand 17 then, projection 49 on the fixed part 48 changes in the mounting groove 47, thereby realizes the installation of separating stand 17.When dismounting separating stand 17, only need backward rotation separating stand 17, projection 49 on the support 16 is shifted out from the mounting groove 47 on the separating stand 17 to get final product, in the irrigation process, can regulate the mounting means of separating stand 17 according to the size of water distribution scope, thereby make corresponding branch water piece relative with the outlet of nozzle 17, satisfy the irrigation demand, not only have two kinds of water distribution manners, and change very convenient.
With reference to Figure 10, the described first minute water surface comprises the circular flat 53 of the center that is positioned at the described first minute water surface, and the high inboard low taper seat 54 of periphery and outer that is positioned at this circular flat 53, be concaved with a plurality of first bypass channels 55 that distribute and be connected with described circular flat 53 radially on this taper seat 54, in use, make first fen water surface relative with the outlet of nozzle 14, water column can be ejected on the circular flat 53 earlier after the outlet ejection of nozzle 14, and then from each first bypass channel 55 of taper seat 54 to around splash, because first fen water surface is made up of taper seat 54 and circular flat 53, taper seat 54 is high inboard low being obliquely installed in outer, and first bypass channel 55 on the taper seat 54 also is high outside and low outside being obliquely installed, water column is after first bypass channel 55 comes out to be dispersed outside being tilted to, under the gravity effect, be sprayed at the place that needs pouring then uniformly, not only water distribution is even, and the bigger occasion of suitable water distribution scope;
With reference to Figure 11, the water surface comprised the center that is positioned at the described second minute water surface and the conical guide face 56 that outwards is convexly equipped with in described second minute, and be positioned at the high inboard low arc surface 57 in these taper shape guide face 56 peripheries and outer, be concaved with a plurality of second bypass channels 58 that distribute and be connected with described conical guide face 56 radially on this arc surface 57, in use, make second fen water surface relative with the outlet of nozzle 14, water column is ejected into earlier on the conical guide face 56 after the outlet ejection of nozzle 14, flow to each second bypass channel 58 of arc surface 57 then along conical guide face 56, at last from each second bypass channel 58 to around splash, because second fen water surface is made up of conical guide face 56 and arc surface 57, arc surface 57 is the high inboard low curve setting in outer, and second bypass channel 58 on the arc surface 57 also is high outside and low outside curve setting, water column comes out from second bypass channel 58, and the back is curved disperses downwards, under the gravity effect, be sprayed at the place that needs pouring then uniformly, not only water distribution is even, and the less occasion of suitable water distribution scope;
Outwards convex with at least two on the described arc surface 57 along radially-arranged minute water boss 59 of described arc surface 57, this minute, the water boss 59 exceeded described arc surface 57, thereby water column can be avoided behind the water impacting on the support 16 from the position ejection at minute water boss 59 places by second bypass channel in 58 minutes;
The outer circumference surface of described separating stand 17 is provided with anti-skidding line 60, is convenient to rotate separating stand 17;
The inboard of described flexible feet 51 is provided with convex tendon 61, and this convex tendon 61 can place in the draw-in groove 46 of separating stand 17, thereby flexible feet 51 is fixed, so that first fen water piece 18 and second fen water piece 50 are installed on the separating stand 17 reliably.
With reference to Fig. 8, Fig. 9, described mounting groove 47 is surrounded by first plate 62 that is positioned at described cavity 45 and second plate 63, this first plate 62 is radially extended by the sidewall of described cavity 45, and vertical the linking to each other of diapire of the inner end of this first plate 62 and described cavity 45, the outside end face of the outer end of this first plate 62 and described separating stand 17 flushes, described second plate 63 is vertical on the outboard end of described separating stand 17, and the head of described second plate 63 links to each other with the outer end of described first plate 62 is vertical, described first plate 62, second plate 63, and the described mounting groove 47 of formation between the diapire of cavity 45, form the entrance of described mounting groove 47 between the diapire of the afterbody of described second plate 63 and described cavity 45, simple in structure;
The afterbody of described second plate 63 is provided with the inclined-plane 64 of meeting to the entrance of described mounting groove 47, the end, inner end that is positioned at described inclined-plane 64 on described second plate 63 is provided with spacing protruding 65, the setting on inclined-plane 64 is convenient to projection and 49 is entered in the mounting groove 47, and spacing protruding 65 can prevent that projection 49 from shifting out in mounting groove 47;
Between adjacent two described mounting grooves 47, outwards convex with locating piece 66 on the diapire of described cavity 45, this locating piece 66 is positioned at the outside of described draw-in groove 46, between adjacent two described protruding 49, be formed with hollow slots 67 on the outer circumference surface of described fixed part 48, be formed with resilient projection 68 on the position relative with described hollow slots 67 on the end face of described fixed part 48, this resilient projection 68 can be supported on the described locating piece 66, when projection 49 changes in the mounting groove 47, resilient projection 68 is supported on the locating piece 66, mobile outside cavity 45 at fixed part 48 under the effect of resilient projection 68, thereby projection 49 and the inwall of mounting groove 47 are offseted, thereby make separating stand 17 more firm with the installation of support 16, when separating stand 17 is disassembled from support 16, only need to press separating stand 17 to support 16 directions, make resilient projection 68 produce distortion, and projection 49 does not offset with the inwall of mounting groove 47, while rotary return seat 17, thereby make projection 49 produce mounting groove 47, can realize the dismounting of separating stand 17.
Described housing comprises and connects housing 69 and be connected lid 70, this connects lid 70 and is connected housing 69 by screw 71 connections, described connection housing 69 is provided with described water inlet 1, be provided with the connection internal thread in this water inlet 1, be convenient to be connected on the water pipe, described connection lid 70 is provided with described delivery port 2, between the afterbody of described connection lid 70 and spool 8, be connected between lid 70 and the pressure ring 4, be connected between housing 69, valve body 3, valve gap 5, the spool 8 four and be equipped with sealing ring 72, good sealing effect.
The present invention when mounted, earlier first fen water piece 18 and second fen water piece 50 are installed to the two ends of separating stand 17, then separating stand 17 is installed on the afterbody of support 16, head with support 16 is installed on the housing then, and nozzle 14 is fixed on the housing by support 16, first fen water piece 18 is relative with the outlet of nozzle 14 with a branch water piece among second fen water piece 50, the water inlet 1 of housing links to each other with water pipe, and the pressure limiting valve of being made up of valve body 3, valve gap 5, spool 8, barrier film 10, spring 13 etc. is installed in the housing.
In use, when the intake pressure on the water inlet 1 during less than permission to use pressure of the present invention, at this moment, spool 8 is motionless, and the water in the water pipe enters in the through hole 9 of spool 8 from the outlet pass 7 of water inlet 1 on valve gap 5, again in the exhalant canal 15 by delivery port 2 flow nozzles 14, thereby the outlet ejection from exhalant canal 18 forms water column then, thereby water column ejection back impacts on the branch water piece that is positioned at nozzle 14 the place aheads, thereby by minute water piece water column is disperseed to realize pouring to splash all around.When the intake pressure on the water inlet 1 during greater than permission to use pressure of the present invention, delivery port 2 can't be dredged the water of coming in from water inlet 1 fully, thereby there is part water to enter in the counter balance pocket 11 by the connection water channel on the afterbody of spool 8, when the pressure in the counter balance pocket 11 during greater than the spring force of sealed air-space 12 inner springs 13, thereby promoting spool 8 moves to valve gap 5, and spring 13 is compressed, the head of spool 8 is close with rounded stops 6 gradually, thereby seal outlet pass 7 gradually, reduce the water yield in the through hole 9 that flows into spool 8, thereby reduce the hydraulic pressure of delivery port 2.And when the head of spool 8 contacts with rounded stops 6 fully, thereby outlet pass 7 is blocked, and then reached the effect of high discharge pressure of restriction.When the pressure in the counter balance pocket 11 during less than the spring force of sealed air-space 12 inner springs 13, spring 13 returns, thereby promote spool 8 away from valve gap 5, outlet pass 7 is opened, recover water flowing, thereby realize the effect of constant voltage, guarantee that the unlikely hydraulic pressure that is subjected to of internal structure of the present invention is excessive and cause damage, and then prolong service life of the present invention.
When needs are replaced with another kind of water distribution manner, only need separating stand 17 is disassembled from support 16, turning the other end that separating stand 17 makes separating stand 17 then is installed on the support 16, can make another minute water piece on the separating stand 17 relative with the outlet of nozzle 14, irrigate requirement thereby satisfy, thereby make the present invention have two kinds of water distribution manners, change also very convenient.
Claims (10)
1. irrigation rig, comprise the housing that links to each other with water pipe and have cavity, two of this housing is provided with water inlet and delivery port, it is characterized in that: the diameter of described delivery port is less than the diameter of described water inlet, the pressure ring and the valve gap that are provided with the valve body with inner chamber in the described cavity and are located at this valve body two, the center of the end of described delivery port is provided with the rounded stops that links to each other with valve gap, is formed with the outlet pass that is communicated with described inner chamber and water inlet between the outer wall of this rounded stops and the inwall of described valve gap;
Axial slip has a spool in the described inner chamber, be provided with the through hole that is communicated with described outlet pass and delivery port in this spool, the head of this spool cooperates with the head seal of described inner chamber, thereby and the end of the head of this spool can be stretched in the described valve gap and contact with described rounded stops and to disconnect being communicated with of described outlet pass and through hole;
Also comprise a barrier film, the outer end edges of this barrier film is clamped between described valve body and the pressure ring hermetically, the edge, inner end of this barrier film is fixed on the described spool hermetically, the described inner chamber that described barrier film will be positioned at described spool outside is separated into counter balance pocket and sealed air-space, be provided with the spring that is supported between described spool and the valve body in the sealing air cavity, be formed with the water channel that is communicated with that is communicated with described counter balance pocket and delivery port on the outer wall of the afterbody of described spool;
The dismountable nozzle that is equipped with in described delivery port place is provided with the exhalant canal that is connected with described delivery port in this nozzle;
Also comprise a support, the head of this support is dismountable to be sleeved on outside the described nozzle, the rear removable of this support a separating stand is installed, this separating stand is provided with the first fen water piece relative with the outlet of described nozzle.
2. according to the described irrigation rig of claim 1, it is characterized in that: the outer wall of described spool is provided with the taper annular groove that a spool baffle ring and that extends radially outward sets to the concave, this taper annular groove is deeper than this taper annular groove near an end of described spool baffle ring away from an end of described spool baffle ring, also comprise the retainer ring that the described spool of a suit is outer, the inner end of this retainer ring is extended with a conical ring that is complementary with described taper annular groove vertically, offer a plurality of flutings on this conical ring, the outer wall of the inwall of this conical ring and described taper annular groove is close to and the end of this conical ring is against on the sidewall of described taper annular groove away from an end of described spool baffle ring, and the outer end of described retainer ring is provided with a back-up ring towards described spool baffle ring projection;
Described barrier film comprises that cross section is U-shaped flexible partition body, the inner end of this septum body is higher than the outer end of described septum body, the inner end of this septum body is inside, the outer end outwards all radially is extended with flange, the end of this flange has bellend, the flange of the inner end of described septum body is clamped between described back-up ring and the spool baffle ring, and the bellend of the inner end of described septum body places in the space that described spool baffle ring, retainer ring and back-up ring surround.
3. according to the described irrigation rig of claim 2, it is characterized in that: be concaved with locating slot on the end face of the head of described valve body, it is protruding to convex with the location that can embed in the described locating slot on the end face of described valve gap;
A described retainer ring side of described spool baffle ring dorsad is concaved with the spring mounting groove, and the head of described valve body is provided with the spring supporting seat, and the two ends of described spring are installed in respectively on described spring mounting groove and the spring supporting seat;
Described connection water channel comprises a plurality of breach of being formed on the described spool end and arranges and be communicated with the wherein groove of a breach and described counter balance pocket along the outer wall depression of described spool.
4. according to claim 1 or 2 or 3 described irrigation rigs, it is characterized in that: the cross section of described exhalant canal is tapered, and the inlet diameter of described exhalant canal is greater than the outlet diameter of described exhalant canal;
Convex with the flow deflector that multi-disc distributes vertically on the inwall of described delivery port;
The head of described support is provided with the outer nozzle casing of front end that is positioned at described nozzle, radially offers the negative pressure hole that at least one runs through this nozzle casing on this nozzle casing, and the axle center of this negative pressure hole is lower than the front end of described nozzle.
5. according to claim 1 or 2 or 3 described irrigation rigs, it is characterized in that: the nozzle body that is provided with described exhalant canal in described nozzle comprises, the head of this nozzle body is set with a nozzle baffle ring outward, link to each other by a plurality of connection straps that are positioned on the same circumference between the outside of the inboard of this nozzle baffle ring and the afterbody of described nozzle body, be formed with container cavity between the inboard of this connection strap and the outer wall of described nozzle body, be formed with between two adjacent described connection straps and stretch out groove, the outer wall that described housing is positioned at described delivery port place stretches into described container cavity and radially outwards convexes with the described connection bump of stretching out groove of insertion, it is outer and be provided with external screw thread that the lateral wall of this connection bump stretches out the described groove that stretches out, and it is outer and be provided with the internal thread that is complementary with described external screw thread that the head of described support is sleeved on described connection bump.
6. according to the described irrigation rig of claim 5, it is characterized in that: the medial end that is positioned at described internal thread in the described support inwardly shrinks and is formed with position limiting convex ring, the afterbody of described nozzle body is provided with the spacing shaft shoulder that is complementary with described position limiting convex ring, described housing is provided with support ring, described nozzle baffle ring is between the end and described support ring of described support, and described housing is provided with sealing gasket between the diapire of the end face at described delivery port place and described container cavity.
7. according to claim 1 or 2 or 3 described irrigation rigs, it is characterized in that: described separating stand inward at both ends vertically is concaved with cavity, the diapire of this cavity is provided with a plurality of draw-in grooves that run through vertically, and these a plurality of draw-in grooves are evenly distributed on the same circumference, are evenly equipped with a plurality of mounting grooves on the sidewall of described cavity;
Described support is provided with the annular fixed part that can stretch in the described cavity, convexes with the projection that can place in the described mounting groove on the outer circumference surface of this fixed part;
Also be provided with second fen water piece on the described separating stand, this second fen water piece and first fen water piece lay respectively at described separating stand vertically two ends and be oppositely arranged, be respectively equipped with on the outside end face of this first fen water piece and second fen water piece can be relative with the outlet of described nozzle first fen water surface and second fen water surface, outward extending a plurality of flexible feet vertically on the excircle of the inboard of this first fen water piece and second fen water piece, the outside of the end of this flexible feet is provided with trip, and what the trip on described first minute water piece and the second fen water piece staggered mutually is stuck in the described draw-in groove.
8. according to the described irrigation rig of claim 7, it is characterized in that: the high inboard low taper seat of periphery and outer that described first minute water surface comprises the circular flat of the center that is positioned at the described first minute water surface and be positioned at this circular flat is concaved with a plurality of first bypass channels that distribute and be connected with described circular flat radially on this taper seat;
The water surface comprised the center that is positioned at the described second minute water surface and the conical guide face that outwards is convexly equipped with and was positioned at this taper shape guide face periphery and the high inboard low arc surface in outer in described second minute, was concaved with a plurality of second bypass channels that distribute and be connected with described conical guide face radially on this arc surface;
Outwards convex with at least two on the described arc surface along radially-arranged minute water boss of described arc surface, this minute the water boss exceed described arc surface;
The outer circumference surface of described separating stand is provided with anti-skidding line;
The inboard of described flexible feet is provided with convex tendon.
9. according to the described irrigation rig of claim 7, it is characterized in that: described mounting groove is surrounded by first plate that is positioned at described cavity and second plate, this first plate is radially extended by the sidewall of described cavity, and the inner end of this first plate links to each other with the diapire of described cavity is vertical, the outside end face of the outer end of this first plate and described separating stand flushes, described second plate is vertical on the outboard end of described separating stand, and the head of described second plate links to each other with the outer end of described first plate is vertical, described first plate, second plate, and form described mounting groove between the diapire of cavity, form the entrance of described mounting groove between the afterbody of described second plate and the diapire of described cavity;
The afterbody of described second plate is provided with the inclined-plane of meeting to the entrance of described mounting groove, and the end, inner end that is positioned at described inclined-plane on described second plate is provided with spacing protruding;
Between adjacent two described mounting grooves, outwards convex with locating piece on the diapire of described cavity, this locating piece is positioned at the outside of described draw-in groove, between adjacent two described projectioies, be formed with hollow slots on the outer circumference surface of described fixed part, be formed with resilient projection on the position relative with described hollow slots on the end face of described fixed part, this resilient projection can be supported on the described locating piece.
10. according to claim 1 or 2 or 3 described irrigation rigs, it is characterized in that: described housing comprises and connects housing and be connected lid, this connection lid be connected housing and connect by screw, described connection housing is provided with described water inlet, be provided with the connection internal thread in this water inlet, described connection lid is provided with described delivery port, between the afterbody of described connection lid and spool, be connected between lid and the pressure ring, be connected between housing, valve body, valve gap, the spool and be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139209.1A CN103263984B (en) | 2013-04-22 | 2013-04-22 | A kind of irrigation rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139209.1A CN103263984B (en) | 2013-04-22 | 2013-04-22 | A kind of irrigation rig |
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| Publication Number | Publication Date |
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| CN103263984A true CN103263984A (en) | 2013-08-28 |
| CN103263984B CN103263984B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310139209.1A Active CN103263984B (en) | 2013-04-22 | 2013-04-22 | A kind of irrigation rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103752430A (en) * | 2014-01-26 | 2014-04-30 | 北京东方润泽生态科技股份有限公司 | Fixed scattering type sprayer |
| CN106305372A (en) * | 2016-08-18 | 2017-01-11 | 大禹节水（天津）有限公司 | Irrigator for potting |
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| EP0580711B1 (en) * | 1991-04-17 | 1995-11-15 | SKANNERUP, Mona | Blast gun for compressed air |
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| CN106305372B (en) * | 2016-08-18 | 2022-05-27 | 大禹节水（天津）有限公司 | Irrigator for potted plants |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103263984B (en) | 2015-08-26 |
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