KR20220169575A - Pressure compensating irrigation drip emitters - Google Patents

Abstract

The present invention relates to a drip water nozzle for pressure-compensated irrigation, comprising: a hollow body (B) having a flow path formed on the outer circumference, and including one or more inlet holes (35) penetrating from the inner circumferential surface of the body (B) to the outer circumferential surface of the body (B); an opening/closing valve (60) which determines whether to open or close the inlet holes (35) according to the pressure of a fluid flowing into the body (B); a soft pad (800) assembled on the opening/closing valve (60) side of the outer periphery of the body (B), and elastically deformed in response to the pressure of the fluid when the opening/closing valve (60) is opened; a valve frame (700) on which the soft pad (800) is seated, and which is coupled to the outer periphery of the body (B); and a flow path member (600) of which a portion is partially coupled to the valve frame (700) with the soft pad (800) interposed therebetween, and the other portion is coupled to the outer periphery of the body (B).

Description

Drip water nozzle for pressure compensation irrigation {PRESSURE COMPENSATING IRRIGATION DRIP EMITTERS}

The present invention relates to drip watering nozzles for pressure compensated irrigation.

Several types of irrigation drip emitters are disclosed, for example, in US 9,485,923, US 8,763,934, US 8,096,491, US 7,988,076, US 7,108,205, and US 6,945,476. Currently known drip irrigation nozzles have some advantages, but have several problems such as pressure loss and/or clogging. Accordingly, a need still exists for an improved drip irrigation nozzle.

Republic of Korea Utility Model Publication No. 1998-065642 (1998. 12. 05)

It is an object of the present invention to provide an improved drip watering nozzle for pressure compensated irrigation that can solve various problems of the prior art, such as pressure loss and/or clogging.

The present invention relates to a drip watering nozzle for pressure-compensated irrigation, wherein a flow path is formed on the outer periphery and includes one or more inlet holes 35 penetrating from the inner circumferential surface of the body (B) to the outer circumferential surface of the body (B). a hollow body (B); an on/off valve (60) for determining whether to open or close the inlet hole (35) according to the pressure of the fluid flowing into the body (B); a soft pad 800 assembled on the side of the on/off valve 60 of the outer circumference of the body B and elastically deformed in response to the pressure of the fluid when the on/off valve 60 is opened; a valve frame 700 on which the soft pad 800 is seated and coupled to the outer periphery of the body B; A flow path member 600, a part of which is coupled to the valve frame 700 with the soft pad 800 interposed therebetween, and the other part is coupled to the outer periphery of the body B; pressure-compensated irrigation comprising a A drip watering nozzle is provided.

In addition, the flow path member 600 has an inner flow path 670 formed on the inner surface facing the body, an outer flow path 650 formed on the outer surface facing the body, and the inner flow path 670 and the outer flow path 650 are fluid flow It may include a through hole through which the phase is connected.

In addition, the fluid flowing through the main flow path inside the body moves along the flow path formed on the outer periphery of the body by opening the inlet hole, moves along the inner flow path 670 at the extended end of the flow path, and moves along the inner flow path 670 It can be moved along the outer flow path 650 by moving to the outside of the flow path member 600 through the through hole at the extended end of the.

In addition, the body is provided with a collection space 12 formed along the outer circumference so that the fluid passing through the outer flow path 650 is collected at both ends, respectively, and a drip water supply hole formed in the hose 5 from the collection space 12 ( 15, 55) through which the fluid can be discharged to the outside.

In addition, the flow path member 600 includes a protrusion 622 protruding a predetermined length from the fluid confluence space 670a formed at the end of the inner flow passage 670 toward the soft pad side through a through hole, and an opening formed on one side of the protrusion 622. It includes a ball 621, the protrusion 622 is in contact with the soft pad at the time of maximum deformation of the soft pad, and the open hole 621 is a protrusion ( 622) may be formed in a groove type.

In addition, the passage formed on the outer periphery of the body may be guided by different barrier rib structures among the extended sections.

In addition, the body may be formed symmetrically toward both ends around the inlet hole located at the center of the body.

In addition, the valve frame 700 is formed with a seating groove 750 formed so that the soft pad can be seated therein and a through-hole 732 through which fluid can press the soft pad when the opening/closing valve is opened. can

In addition, the through hole 732 is located inside the opening 730 protruding a predetermined length toward the soft pad, and on the inner surface of the opening 730, a crossbar 731 extending in a direction transverse to the diameter direction of the through hole 732. ) can be connected at both ends.

In addition, the crossbar 731 is disposed extending to connect the diameter direction of the through hole 732, and may block the open area of the through hole 732 by a width length based on the extension direction.

According to the present invention, an improved drip watering nozzle for pressure compensated irrigation is provided that can solve various problems of the prior art, such as pressure loss and/or clogging.

1 is a view showing a drip water supply nozzle disposed in a drip water supply hose according to an embodiment of the present invention.
2 is an exploded perspective view of a drip water supply nozzle according to an embodiment of the present invention.
Figure 3 shows that the on-off valve is operated by the pressure of the fluid in the drip water supply nozzle according to an embodiment of the present invention, Figure 3 (a) is a view showing that the fluid passage width is formed, Figure 3 (b) is a view showing that the fluid passage width is not formed.
4 is a view showing a valve frame according to an embodiment of the present invention.
5 is a view showing a flow path member according to an embodiment of the present invention.
6 is a bottom side perspective view of a flow path member according to an embodiment of the present invention.
7 is a perspective view illustrating a first region, a second region, and a third region formed on an outer circumferential surface of a body according to an embodiment of the present invention.
8 is a view showing a first flow path, a second flow path, and a third flow path formed in a first area, a second area, and a third area according to an embodiment of the present invention.
9 is a cross-sectional view showing a moving path of fluid in a drip water supply nozzle according to an embodiment of the present invention.
FIG. 10 is a graph showing pressure on the horizontal axis and discharged flow rate on the vertical axis. FIG. 10 (a) is a view showing a conventional drip water supply nozzle, and FIG. 10 (b) shows a drip water supply nozzle according to an embodiment of the present invention. it is a drawing

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, if it is determined that a detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The technical spirit of the present invention is determined by the claims, and the following examples are only one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention belongs.

Hereinafter, a drip watering nozzle 1 for pressure-compensated irrigation, which is an embodiment of the present invention, will be described with reference to FIGS. 1 to 9. Hereinafter, it may be simply referred to as a drip watering nozzle 1 for irrigation. According to one embodiment of the present invention, a hollow body (B) having a flow path formed on the outer periphery and including one or more inlet holes (35) penetrating from the inner circumferential surface of the body (B) to the outer circumferential surface of the body (B), the body (B) an on-off valve 60 that determines whether to open or close the inlet hole 35 according to the pressure of the fluid flowing into the body (B), which is assembled on the on-off valve 60 side of the outer periphery of the on-off valve 60 A soft pad 800 elastically deformed in response to fluid pressure when opened, a valve frame 700 on which the soft pad 800 is seated and coupled to the outer periphery of the body B, and a soft pad 800 It includes a flow path member 600, which is partially coupled to the valve frame 700 and coupled to the outer periphery of the body (B) in an interposed state. Here, the outer periphery refers to the circumference of the member, and refers to the circumference of the exposed surface regardless of whether or not a radius is formed on the member, including the surface of the channel formed in an intaglio or embossment around the central axis of the body (B) That means, the outer circumferential surface may refer to a surface of a circumference continuously connected when forming a predetermined radius from the central axis of the body. In this regard, it will be described in detail with reference to FIGS. 1 to 9 .

1 is a view showing a drip water supply nozzle 1 according to an embodiment of the present invention disposed in a drip water supply hose 5, and FIG. 2 is a view showing a drip water supply nozzle 1 according to an embodiment of the present invention. It is an exploded view.

Referring to FIGS. 1 and 2 , the body (B) may be formed symmetrically toward both ends around the inlet hole 35 located at the center of the body (B). As described above, the drip water supply nozzle 1 located in the drip water supply hose 5 includes the body B, the on-off valve 60, the valve frame 700, the soft pad 800 and the flow path member 600 mutually. It can be assembled and placed. In the case of the soft pad 800, it may be seated on the valve frame 700 and positioned between the flow path member 600 and the valve frame 700. This assembly configuration can form a flow path through which fluid can be guided and flowed along the inner and outer surfaces of the drip water supply nozzle 1 .

As described above, since the body B has a structure that is symmetrical to each other toward both ends around the inlet hole 35, the description of any one of the configurations on both sides is of course applied to the other one. In more detail about the symmetrical configuration here, the inlet groove 30, which is a section in which the inlet hole 35 can be formed, is located in the center, and the first labyrinth-like fluid passage ( 20) and the second labyrinth-type fluid passage 40 are respectively provided. Furthermore, the first discharge part 10 and the second discharge part 50 are provided at the ends of the sections of the first labyrinth-type fluid passage 20 and the second labyrinth-type fluid passage 40, respectively. The first discharge unit 10 and the second discharge unit 50 are formed with groove-shaped outer circumferential surfaces and may be spaced apart from the drip water supply hose 5 to form a space. The space is a collection space 12, where the fluid is finally collected after moving along the drip water supply nozzle 1, and the collected fluid can be discharged to the outside of the drip water supply hose 5. For the discharge, the drip water supply hose 5 may be provided with drip water supply holes 15 and 55. Of course, the drip water supply holes 15 and 55 may be located on the collection space 12, and as shown, one drip water supply hole 15 and 55 is formed, but a plurality may be provided as well, Its size can be selectively determined, and it is also possible to form different sizes from each other or the same size from each other.

On the other hand, the drip watering nozzle 1 for irrigation has a first end wall 11 formed on the surface of the body B at or near the first end 100 of the hollow tube and an additional first end wall ( 13) may also be included. Similarly, the irrigation drip nozzle 1 has a second end wall 51 formed on the surface of the body B at or near the second end 500 of the hollow tube and a further second end. A wall 53 may also be included.

3(a) and 3(b) are diagrams showing a valve frame 700 according to an embodiment of the present invention.

Referring to FIGS. 3(a) and 3(b), the valve frame 700 has a seating groove 750 formed so that the soft pad 800 can be seated therein and the fluid when the on/off valve 60 is opened. A through-hole 732 may be formed to press the soft pad 800 . The through-hole 732 is located inside the opening 730 protruding a predetermined length toward the soft pad 800, and a crossbar extends in a direction transverse to the diameter direction of the through-hole 732 on the inner surface of the opening 730. Both ends of 731 may be connected. Here, the soft pad 800 is made of a soft material such as silicon (a material including a rubber material) and can be elastically deformed.

Also, the valve frame 700 may include a structure for being coupled to the body (B) and a structure for being coupled with the flow path member (600). Specifically, the structure for coupling to the body B may be a coupling structure 710 formed in an embossed shape. A plurality of one or more coupling structures 710 may be provided on the outer periphery of the valve frame, and as shown, two coupling structures 710 may be provided on the left and right sides, for a total of four coupling structures 710 . The body (B) may be provided with a corresponding intaglio groove to be combined with the coupling structure 710.

In addition, a first assembly groove 720 and a second assembly groove 760 may be provided as a structure for coupling with the flow path member 600 . The first assembly groove 720 of the valve frame 700 may have a structure formed in an intaglio to correspond to a structure protruding from the side of the flow path member 600 in the longitudinal direction. As shown in detail, two may be formed in a lateral direction based on the longitudinal direction of the side or flow path member 600 . In addition, the second assembly groove 760 may be a groove formed in a negative shape so that the body extending in the longitudinal direction of the passage member 600 can be seated, and two may be formed in the vertical direction or in the longitudinal direction of the passage member 600. can Of course, it is not limited thereto and may be modified and designed by those skilled in the art according to a structure for selective coupling.

Through this coupling structure 710, the valve frame 700 may be coupled to the body (B). Here, coupling with the flow path member 600 may be coupled with the soft pad 800 interposed therebetween.

Meanwhile, a through-hole 732 may be formed in the seating surface 750 . The through-hole 732 may be provided on the side of the opening/closing valve 60 located in the section of the inflow groove 30 formed in the body (B). The opening/closing valve 60 is opened by the pressure of the fluid, and the opening of the opening/closing valve 60 allows the fluid to move through the through hole 732 and pressurize the soft pad 800 . Therefore, the soft pad 800 can be deformed by being pressurized by the fluid, and can affect the flow of the fluid according to the amount of deformation. This action will be described later in more detail with reference to FIG. 8 below.

Here, the on-off valve 60 is provided in the inlet groove 30 so that the on-off valve 60 surrounds at least one of the inlet holes 35 . The on-off valve 60 is opened and closed by the fluid flowing through the inlet hole 35 and the closed position in which the on-off valve 60 is in close contact with the inlet hole 35 to prevent the fluid from flowing through the inlet hole 35. The valve 60 is configured to expand and move between an open position allowing the fluid to flow into the inlet groove 30 and then to the first and second labyrinth-like fluid channels 20 and 40 . The on/off valve 60 may be made of an elastically deformable material so as to be opened by pressure, and the elasticity may be appropriately selected according to design needs.

Furthermore, an opening 730 protruding toward the soft pad 800 may be formed along an outer diameter of the through hole 732 . The opening 730 may protrude and support the soft pad 800 so as to be separated from the seating surface 750 by a predetermined interval. In addition, the crossbar 731 formed in a direction crossing the through hole 732 may block and divide the area of the open through hole 732 so that two open areas are formed. Here, the crossbar 731 serves to limit the inflow of fluid by partially blocking the area of the open through-hole 732, and supports the opening 730 in the diametric direction or transverse direction of the through-hole 732. It can provide structural stability.

Figure 4 is a plan view showing a flow path member 600 according to an embodiment of the present invention, Figure 5 is a bottom side perspective view of the flow path member 600 according to an embodiment of the present invention.

Referring to Figures 4 and 5, the flow path member 600, the inner flow path 670 formed on the inner surface facing the body (B), the outer flow path 650 and the inner flow path 670 formed on the surface facing the outside. ) and the outer passage 650 may include a through hole 620 through which the fluid flow is connected. The fluid flowing through the main flow path MF inside the body B is supplied to the first labyrinth-like fluid flow path 20 and the second labyrinth-like fluid flow path formed on the outer periphery of the body B by the opening of the inlet hole 35 ( 40), moves along the inner flow path 670 at the extended end of each flow path, moves to the outside of the flow path member 600 through the through hole 620 at the extended end of the inner flow path 670, and moves to the outer flow path. It can be moved along 650.

The inner flow path 670 and the outer flow path 650 may be extended in a structure forming a bypass path such as a zigzag type for the extension of the flow path, that is, by limiting the immediate movement of fluid to the extended end, the drip water supply hose (5 ), it is possible to further reduce the time difference in which the fluid is discharged through each of the plurality of drip water supply holes 15 and 55.

Here, the flow path member 600 includes a protrusion 622 protruding a predetermined length from the fluid confluence space 670a formed at the end of the inner flow passage 670 toward the soft pad 800 with the through hole 620 as the center and the protrusion 622 includes an open hole 621 formed on one side of the , and the protrusion 622 is in contact with the soft pad 800 when the soft pad 800 is deformed at maximum, and the open hole 621 is formed between the protrusion 622 and the soft pad The through hole 620 may be formed in the form of a groove in the protrusion 622 so that the through hole 620 is not closed when the surfaces 800 come into contact with each other.

Specifically, the first guide structure 610 forming the outer passage 650 may be formed on the outer surface of the passage member 600 (the surface facing the drip water supply hose 5). The first guide structure 610 may extend alternately in the extension direction of the passage member 600 in directions in which extension directions face each other. Due to this extension structure, the outer passage 650 may be extended in a “d” shape as shown. Of course, it may be extended in a zigzag shape, but the flow path shape is not limited thereto. In addition, the flow path member 600 may have a second guide structure 660 forming an inner flow path 670 on an inner surface (a surface facing the body B). The second guide structure 660 may extend alternately in the extension direction of the passage member 600 in directions in which extension directions face each other. Due to this extension structure, the outer passage 650 may be extended in a “d” shape. Of course, it may be extended in a zigzag shape, but the flow path shape is not limited thereto. Here, in the case of the inner passage 670, it may not be continuously connected by the fluid confluence space 670a formed at the center of the passage member 600. The fluid joining space 670a may be a space where fluid moving from both sides to the center along the inner passage 670 joins, and the amount of fluid passing through the through hole 620 due to the deformation of the soft pad 800 can be determined

6 is a perspective view illustrating a first region S1, a second region S2, and a third region S3 formed on the outer circumferential surface of the body B according to an embodiment of the present invention.

Referring to FIG. 6 , as described above, the body B may have collection spaces 12 formed along an outer circumferential surface so that fluid passing through the outer passage 650 is collected at both ends of the body B, respectively. The fluid may be discharged from the collection space 12 to the outside through the drip water supply holes 15 and 55 formed in the hose.

On the other hand, the body B is moved to a section in which the first labyrinth-type fluid passage 20 and the second labyrinth-type fluid passage 40 are formed on both sides of the inlet hole 35. Different flow paths may be formed. For example, when the section is divided into a first region S1, a second region S2, and a third region S3 as in this example, they may be formed separately as shown in FIG. 7 below.

Also, the first labyrinth-type fluid passage 20 and the second labyrinth-type fluid passage 40 may be provided so that fluid is formed in opposite directions with respect to the hollow shaft. For example, as in this example, it is formed in a clockwise and counterclockwise direction to promote the movement of fluid. The fluid may be moved to the collection space 12 where the flow ends immediately before discharge.

7 is a first flow path F1, a second flow path F2, and a third flow path formed in the first area S1, the second area S2, and the third area S3 according to an embodiment of the present invention. It is a drawing showing (F3). Each passage formed on the outer periphery of the body B may be guided by different barrier rib structures among the extended sections.

7(a) shows the first region S1, when the on/off valve 60 is opened from the side of the inlet groove 30, the fluid flows in through the fluid inlet 23, and the first partition wall 21a It can be moved along the first flow path F1 formed by this. Here, in the case of the first partition wall 21a, it may be extended in a direction facing each other so that the first flow path F1 is configured in a “d” shape, but is not limited thereto, and the shape of the first partition wall 21a may be zigzag or the like. can be configured more freely.

FIG. 7(b) shows the second area S2, and the second area S2 is connected to the first flow path F1 and fluid flows into the second area S2, and the second flow path formed by the second partition wall 21b. It can be moved along (F2). Here, in the case of the second partition wall 21b, it extends in a direction facing each other so that the second flow path F2 can be configured in a zigzag shape, but is not limited thereto, and the shape of the second partition wall 21b can be configured more freely. there is.

FIG. 7(c) shows the third area S3, which is connected to the second flow path F2 and flows into the third area S3, and is formed by the third partition wall 21c. ) can be moved along. Here, in the case of the third partition wall 21c, it may be extended in a direction facing each other so that the third flow path F3 is configured in a “d” shape, but is not limited thereto, and the shape of the third partition wall 21c may be zigzag or the like. can be configured more freely. The fluid flowing through the third flow passage F3 leaves the third flow passage F3 through the fluid outlet passage 24 . Here, the fluid passing through the third flow passage F3 may be introduced into the aforementioned inner passage 670 through the fluid outflow passage 24 to continue the flow.

8 shows that the on-off valve 60 is operated by the pressure of the fluid in the drip water supply nozzle 1 according to an embodiment of the present invention, and FIG. 8 (a) shows that the fluid passage width A1 is formed. 8(b) is a diagram showing that the fluid passage width A1 is not formed.

Referring to FIGS. 8(a) and 8(b) , as described above, the soft pad 800 may be deformed. The deformed soft pad 800 may approach and deform toward the flow path member 600 in the direction P1 of pressurization of the fluid. Specifically, the soft pad 800 that elastically blocks the through hole 732 while the fluid passes through the inlet hole 35 by the opening of the opening/closing valve 60 and passes through the opened through hole 732. ) can be pressed. That is, the fluid flows through a portion of the soft pad 800 blocking the through hole 732 (for example, the central portion of the soft pad 800 structurally) in the direction where the flow path member 600 is located (in this example, the discharge direction). (Same direction as M1)), the soft member 600 is elastically deformed convexly in the direction of the through hole 620. Depending on the amount of deformation of the soft pad 800, the through hole 620 formed in the flow path member 600 may have a fluid passage width A1 as shown in FIG. The width A1 may be unformed. That is, as the elastically deformed amount increases, the fluid passage width A1 may decrease, and at a predetermined time when the amount of deformation increases, the soft pad 800 may come into contact with the protruding portion 622 . In this case, a flow of fluid may be formed through the aforementioned open hole 621 .

When the fluid passage width is formed, the fluid enters in the entry direction M1 and moves in the discharge direction M2, so that it can be moved to the outer passage 650 of the passage member 600. When the fluid passage width A1 is not formed, the soft pad 800 is in contact with the above-described protrusion 622, and as described above with reference to FIG. 5, the fluid moves by the formation of the open hole 621. can last a certain amount. As described above, the open hole 621 may be formed in a groove shape in the protrusion 622 so that the through hole 620 is not closed when the protrusion 622 and the soft pad 800 come into contact. Therefore, even when the soft pad 800 is in contact with the protruding portion 622 , the fluid introduced through the inner passage 670 may flow into the through hole 620 via the open hole 621 .

9 is a cross-sectional view showing a moving path of fluid in the drip water supply nozzle 1 according to an embodiment of the present invention.

Referring to FIG. 9, the above-described path for moving the fluid may be discharged in the direction shown in FIG. 9 from the main flow path MF to the point of discharge, and at this time, the path of the fluid moving along the outer circumference of the body B ( 7) is replaced by a fluid movement path (S).

10 is a graph showing pressure on the horizontal axis and discharged flow rate on the vertical axis. FIG. 10 (a) is for a conventional drip water supply nozzle, and FIG. 10 (b) is for a drip water supply nozzle according to an embodiment of the present invention. .

10(a) and 10(b), in each graph, the horizontal axis may be pressure (atm), and the vertical axis may be flow per hour (L/h). In FIG. 10 (b), the broken line (rigid silicon) indicates the relationship between pressure and flow rate in a state where the body (B) has no on-off valve 60, flow path member 600, valve frame 700, and soft pad 800. is a graph showing In FIG. 10 (b), the solid line (Flexible silicon) indicates the same state as in the present invention in which the on-off valve 60, the flow path member 600, the valve frame 700, and the soft pad 800 are all present in the body (B). It is a graph showing the relationship between pressure and flow rate in

In the case of the drip water supply nozzle 1 of the present invention, the discharged flow rate rapidly increases until a predetermined point in time when the pressure increases due to fluid supply, and then gradually increases thereafter. On the other hand, in the case of the conventional drip water supply nozzle, the discharged flow rate increases at a similar level as the pressure increases. In the case of the drip water supply hose 5 to which the drip water supply nozzle 1 of the present invention is applied, the change in discharged flow rate does not depend on the pressure change. This is because the discharged flow rate can be adjusted according to the pressure by compensating for the pressure change formed inside the main flow path MF in the process of being elastically deformed by the soft pad 800 described above.

Although representative embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications are possible to the above-described embodiments without departing from the scope of the present invention. . Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

1: drip watering nozzle for irrigation
5: drip water hose for irrigation
10: first discharge unit
11: first end wall
12: collection space
13: additional first end wall
15, 55: drip water supply
20: first labyrinth fluid passage
21a: first bulkhead
21b: second bulkhead
21c: 3rd bulkhead
23: fluid inlet
24: fluid outflow path
30: inflow groove
35: inlet hole
40: second labyrinth fluid passage
50: second discharge unit
51: second end wall
53: additional second end wall
60: open/close valve
100: first end
200: outside
211 first end of first inner wall
212 second end of first inner wall
300: inside
500: second end
600: Euro member
610: first guide structure
620: through hole
621: open hole
622: protrusion
630: first assembly structure
640: second assembly structure
650: outer flow path
660: second guide structure
670: inner passage
670a: fluid confluence space
700: valve frame
710: bonding structure
720: first assembly groove
730: opening
731: crossbar
732: through hole
750: seating surface
760: second assembly groove
800: soft pad
F1: 1st Euro
F2: 2nd flow
F3: 3rd Euro
MF: Main Euro
A1: fluid passage width
M1: entry direction
M2: discharge direction
P1: pressing direction
R: flow-through direction
S1: first area
S2: Second area
S3: 3rd area
B: body
S: fluid movement path

Claims (10)

A hollow body (B) having a flow path formed on an outer periphery and including one or more inlet holes 35 penetrating from an inner circumferential surface of the body (B) to an outer circumferential surface of the body (B);
an on/off valve (60) for determining whether to open or close the inlet hole (35) according to the pressure of the fluid flowing into the body (B);
a soft pad 800 assembled on the side of the on/off valve 60 of the outer circumference of the body B and elastically deformed in response to the pressure of the fluid when the on/off valve 60 is opened;
a valve frame 700 on which the soft pad 800 is seated and coupled to the outer periphery of the body B;
A flow path member 600, a part of which is coupled to the valve frame 700 with the soft pad 800 interposed therebetween, and the other part is coupled to the outer periphery of the body B; pressure-compensated irrigation comprising a drip irrigation nozzle.
The method of claim 1,
The flow path member 600,
The inner flow path 670 formed on the inner surface facing the body B, the outer flow path 650 formed on the outer surface facing the body B, and the inner flow path 670 and the outer flow path 650 are connected in a fluid flow. A drip irrigation nozzle for pressure compensated irrigation comprising a through hole (620).
The method of claim 2,
The fluid flowing through the main flow path inside the body (B),
By the opening of the inlet hole 35, it moves along the flow path formed on the outer periphery of the body B, moves along the inner flow path 670 at the extended end of the flow path, and A drip watering nozzle for pressure compensating irrigation, which moves to the outside of the passage member 600 through the through hole 620 at the extended end and moves along the outside passage 650.
The method of claim 2,
The body (B) is,
A collection space 12 formed along an outer circumferential surface is provided at both ends so that the fluid passing through the outer passage 650 is collected, and drip water supply holes 15 formed in the hose 5 from the collection space 12, 55), a drip irrigation nozzle for pressure-compensated irrigation, through which the fluid is discharged to the outside.
The method of claim 2,
The flow path member 600,
A protrusion 622 protrudes a predetermined length from the fluid confluence space 670a formed at the end of the inner flow passage 670 toward the soft pad 800 with respect to the through hole 620 as the center and formed on one side of the protrusion 622. Including an open hole 621,
The protrusion 622 is in contact with the soft pad 800 when the soft pad 800 is deformed at maximum, and the open hole 621 is in contact between the protrusion 622 and the soft pad 800. A drip watering nozzle for pressure-compensated irrigation, formed in the form of a groove in the protrusion 622 so that the through hole 620 is not closed.
The method of claim 1,
The flow path formed on the outer periphery of the body (B) is guided by different partition structures in the extended section, a drip watering nozzle for pressure-compensated irrigation.
The method of claim 1,
The body (B) is,
A drip watering nozzle for pressure-compensated irrigation, formed symmetrically toward both ends around the inlet hole 35 located at the center of the body B.
The method of claim 1,
The valve frame 700,
A seating groove 750 formed to accommodate the soft pad 800 and a through-hole 732 through which the fluid presses the soft pad 800 when the opening/closing valve 60 is opened. ) is formed, a drip watering nozzle for pressure compensated irrigation.
The method of claim 8,
The through-hole 732 is located inside the opening 730 protruding a predetermined length toward the soft pad 800, and an inner surface of the opening 730 extends in a direction transverse to the inner diameter of the through-hole 732. A drip watering nozzle for pressure-compensated irrigation, to which both ends of the crossbar 731 are connected.
The method of claim 9,
The crossbar 731,
A drip watering nozzle for pressure-compensated irrigation, which extends to connect the through-hole 732 in a radial direction and blocks the open area of the through-hole 732 by a width and length based on the extending direction.

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