CN86103543A - The irrigate band - Google Patents
The irrigate band Download PDFInfo
- Publication number
- CN86103543A CN86103543A CN86103543.7A CN86103543A CN86103543A CN 86103543 A CN86103543 A CN 86103543A CN 86103543 A CN86103543 A CN 86103543A CN 86103543 A CN86103543 A CN 86103543A
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- Prior art keywords
- marginal portion
- groove
- secondary duct
- along
- seam
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Abstract
The plastic drip irrigation tube that is disclosed has consistent structure, and is folding in the longitudinal direction with fluid-tight polyethylene film, and imbricate also is linked together them with heat seal, forms flat flexible duct.Narrow preformed groove along an edge limits a little secondary duct among seam, but resistance to deformation, so that fast along dripping of the controlled unanimity of irrigate band maintenance.Crack in the seam on predetermined distance is formed with irrigation water and flows into the inlet of secondary duct and have water to spill into outlet the soil from secondary duct through it through it from trunk line.
Description
The total aspect of the present invention relates to irrigation, and relates to irrigate band and manufacturing thereof particularly.
Drip irrigation system is compared seldom noticeable with its many homologues.It not be used in a large amount of water of injection on the crop, and more effectively supplies with less water on the whole length of the pipe that is placed on close root place, and the water droplet of overflowing through very little outlet at this place just in time makes ground moistening with correct quantity.Plant growth is promoted, the accumulation of salt and fertilizer loss reduce, and conserve water.
Remove the low and performance of its profile effectively outside, this clever and simple inherently technology is easier and more cheap.The result is that it is used widely, so that needs the irrigation pipe of many miles, and the flat, plastic pipe that is commonly referred to as the irrigate band is universal especially.
The pipe of this kind pattern is flat putting in order to be easy to handle.It can twist on the cylinder and easily when transportation and distribute on the field.In case introduced water, then it is heaved as the porous water spray hose that is used for watering to the meadow of front, room, and when water flows through under pressure therein, along the outlet of pipe water droplet being delivered in the soil, is that crop is watered at its root that needs most and with best speed.
The irrigate band of a lot of today all is to make with folding in the longitudinal direction thin flexible plastic band.Two imbricates and linking together, to form flat hollow arbor braid, the order of magnitude of its width can be about one inch.Under pressure, it rouses into the shape that is substantially cylindrical tube, and its internal diameter can be about 5/8 inch.This is that trunk line-make when the irrigating water of irrigation water flows to the main channel in the crop.
But different with water spray hose, a littler secondary duct is also used in the irrigate band.Secondary duct is usually along by the formed seam of the overlapping edge of plastic tape, and contiguous trunk line is extending along the irrigate band as helping to reduce that water is sent to the slot of the speed in the soil.The water of supplying with trunk line consumes its energy when seeking its path that enters secondary duct through a series of inlets that trunk line and secondary duct are interconnected, and force its path along secondary duct to a series of outlets then, drop by drop ooze in the soil at leisure in this exit.
Be arranged on inner, along its length slow seepage spaced apart equably, this is to make the very effective secret formula in irrigate band, relevant therewith design details low when making or this and successfully to work in drip irrigation system be very crucial.By focus being concentrated on these details, we can realize needs some problems of overcoming in existing design.
Seam and secondary duct particular importance.In some designs, seam is for example to use to add overlapping edge that adhesive makes plastic tape in the longitudinal direction along two thin parallel lines of irrigate band and link together formedly, and the space between two bonding roads is as secondary duct.Thin monofilament hook fishing line is used in a kind of this class design, at first it is immersed in the adhesive, is added in then between the edge to form bonding road.
When the favourable aspect of the secondary duct parts of making seam was used in these designs, they also had some shortcoming.At first, bonding road has constituted additional materials and the additional step in manufacturing process.They must add up exactly and be controlled carefully to keep its size, and this just can obtain along dripping of irrigate band fast consistent.
Secondly, because the static affinity on overlapping edge surface each other, secondary duct is destroyed usually easily.No matter be during fabrication in the processing procedure maybe in being embedded in the field that will irrigate the time, secondary duct can be out of shape usually, so that the overlapping edge of plastic tape is run in the gap in bonding road and sticked together.When this kind situation took place, secondary duct was blocked, the irrigate band cisco unity malfunction.
Other designs also have its shortcoming.For example, in a kind of design, use the pin hole of seam for export and the slit of the laser cutting in another design usually to be stopped up by granular materials in irrigation water and earth, thereby the irrigate band cisco unity malfunction.In addition, make more complicated.
Thereby, usually using two-tube method when existing design and obtain very slow in check when fast, they have some shortcoming relevant with manufacturing, work and reliability.
Thereby, a kind of new and irrigate band of having improved preferably can be arranged, with alleviate these worry one one kinds easy to manufacture and cheap, can obtain the consistent irrigate band of dripping speed and being not easy to take place cisco unity malfunction along its length.
The present invention considers and the relevant problem of existing design, and the improvement that has desired characteristic is provided the irrigate band.
The made tube construction application flexibility material band according to the present invention, the plastic foil such as thin folds in the longitudinal direction, makes two longitudinal edge portions of this band overlapping and be linked together, to form first pipeline.
A marginal portion is processed into and is limited with a groove that extends along this band in the longitudinal direction.Another marginal portion is coupled on the opposite side of groove, and to form the seam of longitudinal extension, wherein groove limits the secondary duct of an energy resistance to deformation.
Include holdout device to keep fluid communication between these in line substantially pipelines, the fluid of supplying with first pipeline can be flow in the secondary duct.This can be the series crack that fixed intervals are arranged in seam.Also include the device that can make fluid on spaced positions, flow into the outside of irrigate band from secondary duct.This can be the crack that fixed intervals are arranged in seam of another series.
The size of groove is arranged to such an extent that can block the fluid of the secondary duct of flowing through, and does not rely on the size of outlet as obtaining the means of needed speed along the outside, irrigate band with this.This feature is with resistance to deformation and be easy to make lump together and alleviated the usually many worries relevant with the irrigate band.
Above-mentioned and other purposes of the present invention and advantage are read in connection with figures and will be become more fully obviously after describing in detail.
Fig. 1 in the accompanying drawing is the perspective view that is used in the not folded part of the flexibility band among the embodiment of tube construction, to be presented at the marginal portion of being made before folding;
Fig. 2 is the amplification detail view of flexible band, with the tie point of display channel and a pair of access road;
Fig. 3 illustrates the situation that flexible band is folded into pipe;
Fig. 4 is the cutaway view of the amplification of being got on the 4-4 of Fig. 3 line;
Fig. 5 is the top view of the part of the pipe finished;
Fig. 6 is the end view of pipe;
Fig. 7 is the cutaway view of the amplification of being got on the 7-7 of Fig. 6 line;
Fig. 8 is the cutaway view of the amplification of being got on the 8-8 of Fig. 6 line;
Fig. 9 is the perspective view of not folded part of flexibility band that is used for the another kind of embodiment of tube construction;
Another embodiment that Figure 10 diagram is partly folding; And
Figure 11 is the cutaway view of the amplification of the part of another embodiment of being got on the 11-11 of Figure 10 line.
Not folded part for the flexibility band among the embodiment that is used in the irrigate band illustrated in figures 1 and 2, they are usually represented with reference number 10 among the figure, the flexibility band among the figure comprises impermeable material such as poly thin flexible membrane.The size of this band is suitable for being folded into section of a pipe, and the order of magnitude of the flexibility band among the embodiment is the wide and 4-25 mil thick of 2-5/8 inch.Folding and its edge links together and constitutes tubulose to form first pipeline with it, i.e. the trunk line that has water to flow through when irrigating.
The adjacent longitudinal extension edge [11] of band [10] is first marginal portion [12], and it extends in the longitudinal direction along band.The adjacent longitudinal extension edge [13] of band [10] is second marginal portion [14], and it also extends in the longitudinal direction along band.Groove has been made in one of these marginal portions, and it is more flat that another marginal portion then keeps.
First marginal portion [12] is shaped in advance and makes preformed part [15] be limited with the groove [16] that extends along on the length direction of band.This available suitable device is realized, makes the band heating till it can be shaped (being about Fahrenheit 400 degree for the polyethylene among the embodiment) as this device, and it is pressurizeed between roller, and the moulding of roller should be able to be accomplished groove in first marginal portion.Should be with cooling then, stay the preform groove of energy resistance to deformation.
Illustrated embodiment is also made in a similar manner on the position that separates of edge band and is limited with paired access road.Access road [19] and [20] are exactly two these class passages.They (Fig. 3) are limited by preform part [18], and they are crossing with the groove [16] of illustrated embodiment on the point of contact that compatibly separates each other along this band.Point of contact is with reference number [21] expression, and it is representational, apart one foot of point of contact (Fig. 1 and Fig. 2).The same with groove [16], the size of these access roades is also arranged to such an extent that sluggish flow can be provided, and those access roades of illustrated embodiment have a semicircular substantially shape, and the order of magnitude of its diameter is 50 mils.Access road can be more bigger than groove [16], and and other features of pipe together as the device of fluid communication between the secondary duct of keeping first pipeline and being limited by groove [16].
Fig. 3 and Fig. 4 represent that band [10] is folded to form the mode of tube construction in the longitudinal direction.Tube construction is usually keeping flat usually in folding back, although in order to be drawn as circle for the purpose of illustrating.First marginal portion [12] of folding band and second marginal portion [14] are overlapping and form first pipeline [25], the i.e. trunk line of irrigation water or passage.Folding can the realization with suitable known devices, this device for example make to be with passes a folding device, it with a marginal portion on another marginal portion roll extrusion so that obtain Fig. 3 and the illustrated structure of Fig. 4.
When band is folding in the longitudinal direction,, on the opposite side of groove [16], the two edges part is linked together with suitable method such as heated sealant.This forms a seam of extending along pipe in the longitudinal direction, and wherein groove [16] limits a secondary duct.The method that realizes heated sealant can be bonded together in (being about Fahrenheit 400 degree for the polyethylene in the illustrated embodiment) two marginal portions adding enough heat, and two marginal portions on the groove both sides are forced together.As the band that folds is passed through between the roller of heating, and the roller of this heating is made opposite pressure is added to two marginal portions along the both sides of groove suitable device and just can be used for producing this heat seal seam.
The heat seal seam of the illustrated embodiment of sectional views of Fig. 4.It comprises the heat sealing part [26] that extends along one side of groove [16] and the heat sealing part [27] that extends along the another side of groove.Second marginal portion is covered with groove makes this groove along limiting a secondary duct within the seam of extending on the length direction of irrigate band.These secondary duct retardance current are so that dripped speed slowly; This speed can be that for example the order of magnitude is 0.1 to 0.6 gallon of per 100 feet pipe per minute.
The present invention includes inlet device, in order between first pipeline and the secondary duct a series of along secondary duct and position spaced on keep fluid communication.This is to be realized by a series of crack in seam in illustrated embodiment, and this crack i.e. crack [28] in heat sealing part [26], and these cracks are limited with a series of inlet.These cracks are to be arranged in (Fig. 5) discontinuity zone of the heated sealant part [26] on next door (promptly not the zone of heated sealant) of node [21].They allow water to flow into by the formed secondary duct of groove [16] along access road [17] and [18].
The present invention comprises also that outlet device makes secondary duct and along fluid communication between a series of position that separates of the outside of tube construction.This is by another the serial crack that limits a series of outlet (Fig. 5) in the heated sealant seam in illustrated embodiment, and promptly realize in the crack [29] in heated sealant part [27].These cracks can be positioned evenly between the inlet that is limited by crack [26], and the water that they allow to enter the secondary duct that is limited by groove [16] flows to the outside of tube construction at leisure from secondary duct.The order of magnitude in used crack is 3/4 inch long in illustrated embodiment, and other sizes also are can be gratifying certainly.Edge among Fig. 6 [11] lifts in the zone of crack [29] a little with the diagram outlet.
The other details of the inlet that is limited by crack [28] as shown in Figure 7.Depression [27 A] expression forms the partly slight deformation of [27] marginal portion [12] of being caused of heated sealant by pressurization.Corresponding contiguous being recessed among Fig. 7 of [26] of heated sealant part do not show, because this seam portion is disconnected by crack [28].Each crack [28] in the heated sealant seam allows water to pass through between first marginal portion [12] and second marginal portion [14] with the direction shown in the arrow [30].This can make water flow into the secondary duct that is limited by groove [16] along access road.Because under the pressure effect of water in trunk line, second marginal portion in being designated as the zone of 14A is to marginal portion [12] bendings (Fig. 7), enter second pipeline and reduce a little dimensionally along the passage of secondary duct, thereby the corresponding attenuating of water velocity.This has just realized the self-choke effect, and is stable to keep a speed of coming out from secondary duct even the variation in water pressure in trunk line (is typical in variation in about 5 to 15 pounds/square inch scope) also can be regulated current.
The details of the outlet that is limited by crack [29] is similar (Fig. 8).Identical with the depression [27 A] in Fig. 7, the depression in Fig. 8 [26 A] expression and heated sealant part [26] relevant slight deformation.Each crack [29] in the heated sealant seam can make first marginal portion [12] and second marginal portion [16] separately, so that make water can ooze from the secondary duct that is limited by groove [16].Thereby water is emitted with the direction shown in the arrow [31].
The pipe that processes can be embedded in each row place of contiguous crop, and length reaches 1/8 mile or longlyer all be fit to.Water in one end of pump inlet pipe flows along pipe, and some water enter second pipeline in each porch thereafter.Water flows into outlet from the inlet along secondary duct then, splashes in the soil along the speed of pipe with basically identical at exit water.
Thereby irrigate band of the present invention has utilized the favourable aspect that makes secondary duct become a seam part.But unlike other irrigate bands, the present invention makes with the strip material with (preformed) groove that performs that extends along an edge, thereby can resistance to deformation.Preformed groove can prevent that external force is with its destruction and prevent that electrostatic force from moving the two edges part together to.
In addition, the crack that the heated sealant seam of an embodiment is applied in the seam limits access road and exit passageway, and these passages are along on the position that separates of irrigate band.Just can be easily and make cheaply realizing the speed of dripping along tube length is controlled with these passages after the seam of preformed groove and heated sealant, the size of this speed and outlet has nothing to do, and the situation of cisco unity malfunction can just not take place easily.
Modification within inventive concept of the present invention changes those situations shown in another embodiment that is included in Fig. 9-11.Reference number has increased by 100 than those reference numbers of the similar parts of being indicated in Fig. 1-8 in these figure.In these figure illustrated another embodiment on each node only with an access road rather than use a pair of access road, (being passage [19] and [20]) in Fig. 1-3.Access road [120] (Fig. 9-11) is formed by preformed part [118], and locates to intersect with groove [116] at node [121], to limit inlet.These inlets keep first pipeline [125] and second pipeline that limited by groove [116] between fluid communication, such the spitting image of the inlet among the embodiment of Fig. 1-8.
But near each node [121], difference is arranged.This difference is in the downstream contact [141] very nearby of each node [121] first marginal portion [112] are being linked the formed secondary duct separator in second marginal portion [114] [140], separator [140] is to flatten preform part [115] when locating, passing through at heated sealant at contiguous each node [121] to form, perhaps when processing first marginal portion [112], save groove [116] and form, then the two edges part is located to connect together to block the secondary duct at neighbouring node place at node [141] in this zone.
This is divided into the plurality of sections that its length is roughly the interval between each node with secondary duct.The water that enters secondary duct through arbitrary specific access road can only flow out from an outlet of the correspondent section that is positioned at secondary duct.At place, end an outlet only is set along every section, just controlled water flow more accurately near this section relative with access road.In addition, water can extend with this mode along the path that secondary duct is got, so that can increase for the size of same fast secondary duct.Moreover, access road is tilted with respect to the flow direction of water in trunk line, (water (flow) direction is represented with arrow [142] in Figure 11), then when water is mobile along the approach of arrow [143 and 144], any granular materials in the water all can be by inswept access road, and can not flow back in the inlet.So this conversion provides additional advantage in design.
Because without departing from the spirit and scope of the present invention, not sacrificing its arbitrary advantage can be in form, different variations is made on the structure and program described herein and the arrangement aspect of parts, therefore it must be understood that all contents all should be interpreted as explaining usefulness herein, and without any the meaning that limits.
Claims (19)
1, a kind of pipe (tubing) structure, its feature comprises:
Flexible material strip with first marginal portion and second marginal portion, the groove that qualification is extended in the longitudinal direction along this band is processed in its first marginal portion, this band folds in the longitudinal direction and makes first marginal portion and second marginal portion overlapping forming first pipeline, and first marginal portion and second marginal portion along the opposite side of groove be joined together to form seam wherein this groove limit a secondary duct;
Along the inlet device of keeping the fluid communication between first pipeline and the secondary duct on a series of position spaced of secondary duct; And
Along the outlet device of keeping fluid communication between a series of position spaced of the outside of tube construction and the secondary duct.
2, structure as claimed in claim 1 is characterized in that second marginal portion is connected on first marginal portion with heated sealant.
3, structure as claimed in claim 1 is characterized in that inlet device is included in the crack (break) of the inlet of a series of qualification respective series in the seam.
4, structure as claimed in claim 1 is characterized in that outlet device is included in the crack of the outlet of a series of qualification respective series in the seam.
5, structure as claimed in claim 4, it is characterized in that outlet series on area of section greater than secondary duct.
6, structure as claimed in claim 1 is characterized in that limiting the device of the fluid of supply first pipeline from the speed of secondary duct outflow.
7, structure as claimed in claim 6, it is characterized in that restraint device comprises that second marginal portion of band is processed into and selected size for responding in the bending of the pressure of the first ducted fluid and reducing the size of secondary duct.
8, structure as claimed in claim 1 is characterized in that first marginal portion is processed into to be limited with and the access road that intersects at the crack place of groove in seam.
9, structure as claimed in claim 8 is characterized in that passage tilts to the direction of leaving groove, and its direction is elected to be the direction that water flows through first pipeline.
10, structure as claimed in claim 8 is characterized in that first marginal portion is processed into a pair of access road in each crack in the series crack that is limited with in seam.
11, structure as claimed in claim 1 is characterized in that the second pipeline section of being divided into.
12, structure as claimed in claim 11 is characterized in that the length of each section is identical with the distance between the inlet device basically.
13, a kind of manufacturing is applicable to the method for the pipe of drip irrigation, and its feature comprises:
The flexible material strip that will have first marginal portion and second marginal portion is processed into and is limited with the groove that extends in the longitudinal direction along this band in first marginal portion;
Go up folding this band along its length, make first marginal portion and second marginal portion overlapping to form first pipeline; And
First marginal portion and second marginal portion are joined together to form seam along the opposite side of groove, groove is limited with secondary duct and is limited with a series of inlets along the crack of this seam in seam between trunk line and secondary duct in this seam, and limits a series of outlets between the outside of secondary duct and tube construction.
14, method as claimed in claim 13 is characterized in that the step of processing belt also comprises:
Make the band heating;
First marginal portion along band makes a groove; And then
Make the band cooling.
15, method as claimed in claim 14, its feature also comprises:
In first marginal portion, make the access road that intersects on all positions that a series of and groove separating.
16, method as claimed in claim 14, its feature also comprises:
The pressure that makes the overlapping so that overlapping access road in a part of second marginal portion in first marginal portion and second marginal portion make second marginal portion can respond the fluid in first pipeline carries out bending and blocks fluid flowing to secondary duct.
17, method as claimed in claim 13, its feature comprise that the step that connects first marginal portion and second marginal portion also comprises:
Make first marginal portion and second marginal portion carry out heated sealant along the opposite side of groove.
18, method as claimed in claim 17, its feature also comprises:
Saving heated sealant on the position along selecting of groove to limit entrance and exit.
19, method as claimed in claim 13, its feature also comprises:
Each section that groove is segmented into have designated length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103543 CN1011564B (en) | 1986-05-23 | 1986-05-23 | Drip irrigation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103543 CN1011564B (en) | 1986-05-23 | 1986-05-23 | Drip irrigation pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86103543A true CN86103543A (en) | 1987-12-02 |
| CN1011564B CN1011564B (en) | 1991-02-13 |
Family
ID=4802106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86103543 Expired CN1011564B (en) | 1986-05-23 | 1986-05-23 | Drip irrigation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011564B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318146C (en) * | 2002-02-08 | 2007-05-30 | 托罗公司(美国) | Pressure compensating drip irrigation hose |
| CN102869913A (en) * | 2010-04-09 | 2013-01-09 | 彼得·安德鲁·约翰·梅 | A hose shroud |
| CN102909852A (en) * | 2012-09-19 | 2013-02-06 | 西北农林科技大学 | Covering and folding device for forming drip irrigation zone |
| CN106563240A (en) * | 2016-10-18 | 2017-04-19 | 南安昌晟消防科技有限公司 | Multi-pipe fire hose |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804391A (en) * | 2010-05-11 | 2010-08-18 | 株式会社三元企业 | Drip irrigation hose |
-
1986
- 1986-05-23 CN CN 86103543 patent/CN1011564B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318146C (en) * | 2002-02-08 | 2007-05-30 | 托罗公司(美国) | Pressure compensating drip irrigation hose |
| CN102869913A (en) * | 2010-04-09 | 2013-01-09 | 彼得·安德鲁·约翰·梅 | A hose shroud |
| CN102869913B (en) * | 2010-04-09 | 2015-04-01 | 彼得·安德鲁·约翰·梅 | A hose shroud |
| CN102909852A (en) * | 2012-09-19 | 2013-02-06 | 西北农林科技大学 | Covering and folding device for forming drip irrigation zone |
| CN102909852B (en) * | 2012-09-19 | 2014-09-17 | 西北农林科技大学 | Covering and folding device for forming drip irrigation zone |
| CN106563240A (en) * | 2016-10-18 | 2017-04-19 | 南安昌晟消防科技有限公司 | Multi-pipe fire hose |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1011564B (en) | 1991-02-13 |
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