A kind of adjustable water conservancy irrigation conduit
Technical field
This utility model relates to water conservancy irrigation technical field, a kind of adjustable water conservancy irrigation conduit.
Background technology
Traditional agricultural irrigation is to soak filling, and this irrigation method can make farming be sufficiently to absorb a point water, but
Can cause the significant wastage of water resource, be best able to saving water resource in prior art is drip irrigation technique, and it is that arid lacks at present
A kind of water-saving irrigation technique that water area is maximally efficient, the utilization rate of water resource is high, it is possible to effective guarantee crops absorb raw
The one adjustable water conservancy irrigation conduit that moisture needed for length, such as China Patent No. 201521144541.8 propose, described note
The mouth of a river is fixedly mounted on love location-plate, and water filling port is connected with water main by fixed plate, and described flow-limiting valve is embedded in main water
Guan Shang, the setting of flow-limiting valve can effectively control the size of water main current, and described current limliting pull bar is fixedly mounted on irrigation head
On, current limliting pull bar can regulate each distributive pipe flow rate of water flow and the size of flow so that irrigation water is more saved effectively.But
It is in use, owing to its isocon is non-adjustable, the waste of water resource can be caused while carrying out drip irrigation, and at main water
When pipe is laid on earth's surface, owing to long-term exposing to the weather can cause water main appearance to corrode, shorten the service life of water main,
Cause the obstruction of filter screen due to outside silt reflux during drip irrigation, affect the normal use of irrigation conduit.To this end, it is proposed that
A kind of adjustable water conservancy irrigation conduit solves above-mentioned produced problem.
Utility model content
The purpose of this utility model is to provide a kind of adjustable water conservancy irrigation conduit, to solve to carry in above-mentioned background technology
The problem gone out.
For achieving the above object, this utility model following technical scheme of offer: a kind of adjustable water conservancy irrigation conduit, including
Water filling port, outlet and water main, described water main left end is provided with water filling port, and described outlet is opened in water main right part, institute
Stating water main internal welding and be connected to flow distribution plate, described water main is connected by tap hole isocon, and tap hole is opened in water main
Surface, described water main surface is socketed with protective jacket.
Preferably, on the right side of described water filling port, be respectively equipped with packing ring and filter screen, and filter screen be positioned on the right side of packing ring, described packing ring and
Filter screen is centrosymmetric distribution along water main.
Preferably, described isocon includes the first telescopic joint and the second telescopic joint, and the first telescopic joint is plugged on second and stretches
Casing coupling inner chamber, described first telescopic joint stretches into and is provided with spacing ring, and a left side for spacing ring bottom one end of the second telescopic joint inner chamber
Right two ends and the contact internal walls of the second telescopic joint.
Preferably, described first telescopic joint is provided with flow-limiting valve, and the maximum anglec of rotation of flow-limiting valve is not more than 75 degree.
Preferably, being bolted with spray filter screen bottom described second telescopic joint, the female thread of described spray filter screen and second is stretched
External screw thread bottom casing coupling is suitable, and spray filter screen and the second telescopic joint joining place are provided with seal washer.
Preferably, described flow distribution plate is evenly distributed on water main inwall, and flow distribution plate is distributed along water main axisymmetrical.
Compared with prior art, the beneficial effects of the utility model are: this adjustable water conservancy irrigation conduit, pass through flow-limiting valve
Can regulate the size of isocon water flow, setting up defences in water main outer cover, to be prevented from water main long-term on earth's surface for sheath
Corrosion to water main surface in exposing to the weather, extends the service life of water main, and spray filter screen is screwed onto bottom isocon, energy
Enough change spray filter screen timely and conveniently when filter screen blocks, by the first telescopic joint and the second telescopic joint with the use of, energy
Enough realize the regulation of isocon, so that drip irrigation is more economized on water, and by the setting of water main internal shunt plate, utilize tapered spray
The principle of mouth, makes water main water flow inside flow velocity increase, it is possible to reduce the spray rate filter screen caused because of silt reflux to greatest extent
The phenomenon blocked.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 is this utility model water main and isocon structural representation;
Fig. 3 is this utility model isocon structural representation.
In figure: 1 water filling port, 2 outlets, 3 packing rings, 4 filter screens, 5 water mains, 6 flow distribution plates, 7 tap holes, 8 protective jackets, 9 points
Flow tube, 91 first telescopic joints, 92 second telescopic joints, 93 spacing rings, 10 flow-limiting valves, 11 spray filter screens.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1-3, a kind of technical scheme of this utility model offer: a kind of adjustable water conservancy irrigation conduit, including note
The mouth of a river 1, outlet 2 and water main 5, described water main 5 left end is provided with water filling port 1, and described outlet 2 is opened in water main 5 right-hand member
Portion, described water main 5 internal welding is connected to flow distribution plate 6, and described water main 5 is connected by tap hole 7 isocon 9, and tap hole 7
Being opened in water main 5 surface, described water main 5 surface is socketed with protective jacket 8.
It is respectively equipped with packing ring 3 and filter screen 4 on the right side of described water filling port 1, and filter screen 4 is positioned on the right side of packing ring 3, described packing ring 3 He
Filter screen 4 is centrosymmetric distribution along water main 5.Described isocon 9 includes the first telescopic joint 91 and the second telescopic joint 92, and first
Telescopic joint 91 is plugged on the second telescopic joint 92 inner chamber, and described first telescopic joint 91 stretches into bottom one end of the second telescopic joint 92 inner chamber
Spacing ring 93 is installed, and the contact internal walls of the two ends, left and right of spacing ring 93 and the second telescopic joint 92.Described first telescopic joint 91
It is provided with flow-limiting valve 10, and the maximum anglec of rotation of flow-limiting valve 10 is not more than 75 degree.It is bolted with bottom described second telescopic joint 92
Spray filter screen 11, the external screw thread bottom the female thread of described spray filter screen 11 and the second telescopic joint 92 is suitable, and spray filter screen
11 and second telescopic joint 92 joining place be provided with seal washer.Described flow distribution plate 6 is evenly distributed on water main 5 inwall, and flow distribution plate 6
It is distributed along water main 5 axisymmetrical.
Operation principle: the size of isocon 9 water flow can be regulated by flow-limiting valve 10, outside sheathed at water main 5
Protective jacket 8 be prevented from water main 5 earth's surface long-term expose to the weather in corrosion to water main 5 surface, extend water main 5
In service life, spray filter screen 11 is screwed onto bottom isocon 9, it is possible to change spray filter screen timely and conveniently when filter screen blocks
11, by the first telescopic joint 91 and the second telescopic joint 92 with the use of, it is possible to realize the regulation of isocon 9, so that drip irrigation
More economize on water, and by the setting of water main 5 internal shunt plate 6, utilize the principle of negative throat noz(zle), make water main 5 water flow inside
Flow velocity increases, it is possible to reduces to greatest extent and sprays, because of what silt reflux caused, the phenomenon that filter screen 11 blocks.This apparatus structure letter
Single, reasonable in design, it is possible to reduce water resource waste in irrigation system to greatest extent, extend the use longevity of irrigation conduit
Life.
Embodiment the most of the present utility model, for the ordinary skill in the art,
It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair
Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.