Slight irrigation barretter fitting
Technical field
The utility model relates to slight irrigation barretter fitting.
Background technology
Known irrigation system is to be formed by connecting by various pipe connecting pieces by main, arm, hollow billet, and that pipe connecting piece mainly comprises is straight-through, threeway, five-way etc., generally all is provided with Green's head on the aforementioned tube fitting.In order to guarantee to pour water evenly, keep the waterflow stabilization in the hollow billet, the aforementioned tube fitting does not have the current stabilization function.For this reason, all will be provided with flow straightener at every hollow billet and arm junction, the shortcoming of this way is that flow straightener easily stops up, and installation and maintenance are loaded down with trivial details, increased fault rate and cost simultaneously.Chinese patent CN2512236Y discloses a kind of " drip irrigation flow regulator ", it comprises water inlet pipe, outlet pipe, it is characterized in that being provided with between water inlet pipe and the outlet pipe decompression balance cylinder, decompression balance cylinder water inlet links to each other with water inlet pipe, be provided with a long and narrow decompression exhalant canal behind the delivery port of decompression balance cylinder and connect outlet pipe, be provided with the pressure balance film between decompression exhalant canal middle part and the decompression balance cylinder.Because of the opening and the hole of above-mentioned water inlet pipe inner flow passage more, and size difference, on the one hand, limited the size and the number of elastic equilibrium film, its hydraulic pressure regulating power and scope are less, and steady flow result is relatively poor, on the other hand, its processing mold is complicated, difficult forming, during assembling easily the decompression balance cylinder from decompression exhalant canal middle part fracture; Secondly, above-mentioned drip irrigation is with in the flow regulator application and the annexation of unexposed each parts such as balance film, runner section and body, and technology should be bonding routinely, so on the one hand, assemble loaded down with trivial detailsly, be unfavorable for producing in batches, work efficiency is low, on the other hand, balance film comes off easily, even stops up runner, and whole system can't be worked, and the outer pipe of runner can't be dismantled, thereby can't keep in repair.Because of above-mentioned defective, finally cause its steady flow result relatively poor, cost is higher, and global reliability is lower.
Summary of the invention
The purpose of this utility model is to provide that a kind of steady flow result is better, fault rate is low, dependable performance, be convenient to safeguard and cost lower, can be used for the slight irrigation barretter fitting that the slight irrigation pipeline connects simultaneously.
A kind of slight irrigation barretter fitting, comprise a pipe junctor, be provided with steady flow valve core at least one end of pipe junctor, the steady flow valve core front end is towards water inlet, the steady flow valve core rear end is located on the pipe junctor, form a plenum chamber that communicates with the runner of the runner of managing junctor, steady flow valve core between steady flow valve core front end periphery and the pipe junctor inwall, above-mentioned steady flow valve core is made up of support and elastic equilibrium film spare.
Above-mentioned barretter fitting, support is tubular and is placed in outside the support at least two column chapelets, elastic equilibrium film spare.
Above-mentioned barretter fitting, support is at least two column chapelets, elastic equilibrium film spare is tubular and is provided with the projection of radially arranging in it that it is outer and protruding between chapelet that elastic equilibrium film spare is placed in support.
Above-mentioned barretter fitting, support is at least two column chapelets, elastic equilibrium film spare is that tubular and its top are provided with the projection of radially arranging, and is provided with the jack that inserts for chapelet in the projection.
Above-mentioned barretter fitting, support is at least two column chapelets, elastic equilibrium film spare is that tubular and its top are provided with ring-shaped step, is provided with the jack that inserts for chapelet in the step.
Above-mentioned barretter fitting forms runner between convex inner walls and the chapelet, to improve steady flow result.
Above-mentioned barretter fitting forms runner between step inwall and the chapelet, to improve steady flow result.
Above-mentioned barretter fitting, the chapelet rear end is located on the cylinder, and the cross section of chapelet is circular-arc, and the height of the projection of elastic equilibrium film spare is less than the height of chapelet, and support is provided with and prevents that elastic equilibrium film spare is inserted in too dark limiting stand, in order to avoid block runner.
Above-mentioned barretter fitting, the chapelet rear end is provided with cylinder, and the cross section of chapelet is circular-arc, and the height of the step of elastic equilibrium film spare is less than the height of chapelet, and support is provided with and prevents that elastic equilibrium film spare is inserted in too dark limiting stand, in order to avoid block runner.
Above-mentioned barretter fitting, support are that a circumference is provided with the cylinder of surely boxing out, and elastic equilibrium film spare is tubular and is placed in outside the support.
Above-mentioned barretter fitting, support are that a circumference is provided with the cylinder of surely boxing out, and are provided with step in surely boxing out, and elastic equilibrium film spare is sheet and is embedded in the step of surely boxing out.
Above-mentioned barretter fitting, steady flow valve core and pipe junctor are convenient to I﹠ M for removably connecting.
Above-mentioned barretter fitting, the support rear end with the pipe junctor for being threaded.
Above-mentioned barretter fitting, support rear end be taper and with the pipe junctor be taper connection.
Above-mentioned barretter fitting, the support rear end is provided with disk, disk with the pipe junctor for being threaded.
Above-mentioned barretter fitting, pipe junctor one end at steady flow valve core place is provided with the socket joint head, and the socket joint head is threaded with the pipe junctor, is convenient to I﹠ M.
Inwall or steady flow valve core outside that above-mentioned barretter fitting, pipe junctor are provided with the steady flow valve core place are taper, are convenient to form a bigger plenum chamber.
Last barretter fitting, socket joint head, pipe junctor end are provided with Green's head, are convenient to connect pipe.
Because of the utility model has adopted Combination Design, each component structural standard and simple.Core of the present utility model is that steady flow valve core has adopted the split design, promptly form by support and elastic film piece, the size of elastic film piece and quantity can change according to designing requirement like this, its hydraulic pressure regulating power and scope are bigger, steady flow result is better, secondly, steady flow valve core split design can be simplified mould, reduces difficulty of processing and cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is the cutaway view of embodiment 1.
Fig. 2 is the cutaway view of embodiment 2.
Fig. 3 is the vertical view of the steady flow valve core of embodiment 2.
Fig. 4 is the cutaway view of embodiment 3.
Fig. 5 is the cutaway view of embodiment 4.
Fig. 6 is the cutaway view of embodiment 5.
Fig. 7 is the vertical view of the steady flow valve core of embodiment 6.
Fig. 8 is the vertical view of the steady flow valve core of embodiment 7.
Fig. 9 is the cross-sectional view of the steady flow valve core of embodiment 8.
Embodiment
With reference to Fig. 1, the pipe junctor 1 of embodiment 1 is provided with the straight-through of Green's head for the end, be provided with steady flow valve core in pipe junctor one end, above-mentioned steady flow valve core is made up of support 2 and elastic equilibrium film spare 4, support is that a circumference is provided with four cylinders of 3 of surely boxing out, elastic equilibrium film spare is tubular and is placed in outside the support, the steady flow valve core front end is towards water inlet, the support rear end is fixed on the pipe junctor, forms a plenum chamber that communicates with the runner of the runner of managing junctor, steady flow valve core between steady flow valve core front end periphery and the pipe junctor inwall.
With reference to Fig. 2-3, embodiment 2 difference from Example 1 are on the annexation of the structure of steady flow valve core and it and pipe junctor.Support is that three cross sections are circular-arc column chapelet 8, the chapelet rear end is provided with cylinder 5, cylinder rear end on the chapelet be taper and with the pipe junctor be taper connection, elastic equilibrium film spare is that tubular and its top are provided with ring-shaped step, be provided with the jack that inserts for chapelet in the step, form runner 7 between step inwall and the chapelet, the height of the step of elastic equilibrium film spare is less than the height of chapelet, and support is provided with and prevents that elastic equilibrium film spare is inserted in too dark limiting stand 6.
With reference to Fig. 4, embodiment 3 difference from Example 1 are to manage junctor 1 and are threeway, and steady flow valve core is two water sides that lay respectively at threeway, and the support rear end is provided with disk and disk and manages junctor for being threaded, and elastic equilibrium film spare periphery is taper.
With reference to Fig. 5, embodiment 4 difference from Example 2 are to manage junctor 1 and are threeway, steady flow valve core is located at pipe junctor water inlet, pipe junctor one end at steady flow valve core place is provided with the socket joint head 9 of band Green head, socket joint head rear end with the pipe junctor for being threaded, stomidium is tubaeform behind the socket joint head, the inwall that the pipe junctor is provided with the steady flow valve core place is taper, forms a plenum chamber that communicates with the runner of the runner of managing junctor, steady flow valve core between socket joint head rear end and steady flow valve core front end periphery, the pipe junctor inwall.
With reference to Fig. 6, embodiment 5 difference from Example 3 are that pipe junctor one end at steady flow valve core place is provided with the socket joint head 9 that has Green's head, and the disk of support is put in the interior step of pipe junctor and fixes by the socket joint head.
With reference to Fig. 7, embodiment 5 difference from Example 4 are that support is that four cross sections are semicircle chapelet, and elastic equilibrium film spare is that tubular and its top are provided with the projection of radially arranging, and is provided with the jack that inserts for chapelet in the projection.
With reference to Fig. 8, embodiment 7 difference from Example 4 are that elastic equilibrium film spare is tubular and is provided with the projection of radially arranging in it that it is outer and protruding between chapelet that elastic equilibrium film spare is placed in support, is provided with reinforcement 10 in the chapelet.
With reference to Fig. 9, embodiment 8 difference from Example 3 are that three are provided with step in surely boxing out, and elastic equilibrium film spare is sheet and is embedded in the step of surely boxing out.
In the above-described embodiments, support, the quantity of elastic equilibrium film spare, shape of cross section can be multiple, and whether the chapelet, the current stabilization hole that is to say support can be four, five, eight and wait or not, and shape of cross section can be circle, ellipse etc.Pipe junctor, support, elastic equilibrium film spare can carry out various combination as required, and for example embodiment 4 can adopt the steady flow valve core structure of other embodiment.
In the above-described embodiments, elastic equilibrium film spare is a silica gel.
In the above-described embodiments, steady flow valve core is located at pipe junctor water inlet and is overlapped steady flow valve core than being located at the water side and lacking with one, but effect do not reduce, and can further save cost.
Current stabilization principle of the present utility model is as follows:
When hydraulic pressure increased, the water of plenum chamber can push elastic equilibrium film spare, and the sectional area of steady flow valve core diminishes, but the flow velocity quickening, discharge is basicly stable; When hydraulic pressure reduced, the compression elasticity balanced film piece can not be subjected to the extruding of the water of plenum chamber, and the sectional area of steady flow valve core is bigger, but flow velocity is slower, and discharge is basicly stable.
For the slight irrigation barretter fitting that runner is arranged, embodiment 2,4 etc. for example, the variation of hydraulic pressure mainly influences the size that forms the runner sectional area between the inwall of elastic equilibrium film spare step or projection and the chapelet, and the sprue sectional area of steady flow valve core is constant substantially, and steady flow result is more satisfactory.