KR102622087B1 - Pressure compensating irrigation drip emitters - Google Patents

Abstract

The present invention relates to a drip water nozzle for pressure compensation irrigation, wherein a flow path is formed on the outer circumference 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). Hollow body (B); An opening/closing 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); A soft pad (800) assembled on the outer periphery of the body (B) on the on-off valve (60) side 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; Pressure compensation irrigation, including; a flow path member 600 that 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) A drip water nozzle is provided.

Description

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

The present invention relates to a drip water nozzle for pressure-compensated irrigation.

Several types of irrigation drip emitters are disclosed in, for example, 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. Although currently known drip water nozzles have some advantages, they have several problems such as pressure loss and/or clogging. Therefore, there still exists a need for improved drip water nozzles.

Republic of Korea Public Utility Model Publication No. 1998-065642 (December 5, 1998)

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

The present invention relates to a drip water nozzle for pressure compensation irrigation, wherein a flow path is formed on the outer circumference 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). Hollow body (B); An opening/closing 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); A soft pad (800) assembled on the outer periphery of the body (B) on the on-off valve (60) side 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; Pressure compensation irrigation, including; a flow path member 600 that 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) A drip water nozzle is provided.

In addition, the flow path member 600 has an inner flow path 670 formed on the inner side facing the body, an outer flow path 650 formed on the side facing the outside, and the inner flow path 670 and the outer flow path 650 allow fluid flow. It may include a through hole so that the phases are connected.

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

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

In addition, the flow path member 600 has a protrusion 622 that protrudes a predetermined length around the through hole from the fluid convergence space 670a formed at the end of the inner flow path 670 toward the soft pad, and an opening formed on one side of the protrusion 622. It includes a hole 621, and 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 (621) to prevent the hole from being closed when contact between the protrusion 622 and the soft pad. 622) may be formed in a groove shape.

Additionally, the flow path formed on the outer periphery of the body may be guided by different partition structures among the extended sections.

Additionally, the body may be formed symmetrically toward both ends with an inflow hole located at the center of the body.

In addition, the valve frame 700 has a seating groove 750 formed so that the soft pad can be seated in response, and a through hole 732 formed so that the fluid can pressurize the soft pad when the opening and closing valve is opened. You can.

In addition, the through hole 732 is located inside the opening 730 that protrudes a predetermined length toward the soft pad, and a crossbar 731 extends in a direction transverse to the radial direction of the through hole 732 on the inner surface of the opening 730. ) can be connected.

In addition, the crossbar 731 is arranged to extend to connect the radial direction of the through hole 732, and can block the open area of the through hole 732 by the width based on the extension direction.

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

Figure 1 is a view showing a drip water supply nozzle according to an embodiment of the present invention disposed in a drip water supply hose.
Figure 2 is an exploded perspective view of a drip water nozzle according to an embodiment of the present invention.
Figure 3 shows that the opening and closing valve is operated by the pressure of the fluid in the drip water nozzle according to an embodiment of the present invention, Figure 3(a) is a diagram showing the fluid passage width formed, and Figure 3(b) is a diagram showing that the fluid passage width is not formed.
Figure 4 is a diagram showing a valve frame according to an embodiment of the present invention.
Figure 5 is a diagram showing a flow path member according to an embodiment of the present invention.
Figure 6 is a bottom perspective view of a flow path member according to an embodiment of the present invention.
Figure 7 is a perspective view showing a first region, a second region, and a third region formed on the outer peripheral surface of a body according to an embodiment of the present invention.
Figure 8 is a diagram showing the first flow path, the second flow path, and the third flow path formed in the first region, the second region, and the third region according to an embodiment of the present invention.
Figure 9 is a cross-sectional view showing the movement path of fluid in a drip water nozzle according to an embodiment of the present invention.
Figure 10 is a graph showing the pressure on the horizontal axis and the discharged flow rate on the vertical axis. Figure 10(a) is a diagram showing a conventional drip water nozzle, and Figure 10(b) is a diagram showing a drip water 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 gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following examples are only a means to efficiently explain the technical idea of the present invention to those skilled in the art in the technical field to which the present invention pertains.

Hereinafter, a drip water nozzle 1 for pressure compensation irrigation, which is an embodiment of the present invention, will be described with reference to FIGS. 1 to 9. Hereinafter, it may be briefly referred to as a drip water nozzle for irrigation (1). According to an 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 peripheral surface of the body (B) to the outer peripheral surface of the body (B). (B) An opening/closing valve (60) that determines whether to open or close the inlet hole (35) according to the pressure of the fluid flowing inside, is assembled on the opening/closing valve (60) side of the outer periphery of the body (B), and is connected to the opening/closing valve (60). A soft pad 800 that is 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 that is partially coupled to the valve frame 700 in an interposed state and the other portion is coupled to the outer periphery of the body (B). Here, the outer circumference refers to the circumference of the member, which means the circumference of the exposed surface regardless of whether a radius is formed in the member, and includes the surface of the flow path formed in a negative or positive manner around the central axis of the body (B). This means that the outer circumferential surface can refer to the circumferential surface that continues continuously when forming a predetermined radius from the central axis of the body. In this regard, it will be described in detail through FIGS. 1 to 9.

Figure 1 is a view showing the drip water supply nozzle (1) according to an embodiment of the present invention disposed within the drip water supply hose (5), and Figure 2 is a diagram showing the drip water supply nozzle (1) according to an embodiment of the present invention. This is an exploded perspective view.

Referring to FIGS. 1 and 2 , the body B may be formed symmetrically toward both ends with the inlet hole 35 located in the center of the body B as the center. As described above, the drip water nozzle (1) located within the drip water supply hose (5) includes a body (B), an opening/closing valve (60), a valve frame (700), a soft pad (800), and a flow path member (600). Can be assembled and deployed. 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 flow along the inner and outer surfaces of the drip water nozzle (1).

As described above, the body B has a structure that is symmetrical toward both ends with the inlet hole 35 as the center, so of course, the description of one of the two configurations applies to the other one. Here, to describe the symmetrical configuration in more detail, the inlet groove 30, which is a section in which the inlet hole 35 can be formed, is located in the center, and a first maze-shaped fluid flow path ( 20) and sections of the second maze-type fluid passage 40 are provided, respectively. Furthermore, a first discharge portion 10 and a second discharge portion 50 are provided at the ends of the sections of the first maze-shaped fluid passage 20 and the second maze-shaped fluid passage 40, respectively. The first discharge part 10 and the second discharge part 50 are formed on the outer peripheral surface in the form of a groove, so that a space can be formed by being spaced apart from the drip water hose 5. The space is the collection space 12, where the fluid moves along the drip water nozzle 1 and is finally collected, and the fluid collected here can be discharged to the outside of the drip water hose 5. For the discharge, the drip water supply hose (5) may be provided with drip water supply holes (15, 55). Of course, the drip water holes (15, 55) can be located on the collection space (12). As shown, one drip water hole (15, 55) is formed, but a plurality of drip water holes (15, 55) can be provided. The sizes can be selectively determined, and it is also possible to have different sizes or the same size.

On the other hand, the drip water nozzle for irrigation (1) includes a first end wall (11) formed on the surface of the body (B) at or close to the first end (100) of the hollow pipe and an additional first end wall ( 13) may also be included. Similarly, the drip water nozzle 1 for irrigation has a second end wall 51 and an additional second end wall 51 formed on the surface of the body B at or near the second end 500 of the hollow pipe. It may also include a wall 53.

Figures 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 in correspondence with the fluid when the opening/closing valve 60 is opened. A through hole 732 may be formed to press the soft pad 800. The through hole 732 is located inside an opening 730 that protrudes a predetermined length toward the soft pad 800, and a cross bar extends in a direction transverse to the radial 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 silicone (a material containing rubber material) and is elastically deformable.

Additionally, the valve frame 700 may include a structure for coupling to the body (B) and a structure for coupling to the flow path member 600. Specifically, the structure for coupling to the body B may be a coupling structure 710 formed in relief. A plurality of one or more coupling structures 710 may be provided on the outer peripheral side 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 engraved groove to be coupled to the coupling structure 710.

Additionally, a first assembly groove 720 and a second assembly groove 760 may be provided as a structure for coupling to the flow path member 600. The first assembly groove 720 of the valve frame 700 may have a concave structure to correspond to a structure protruding from the side in the longitudinal direction of the flow path member 600. As specifically shown, two may be formed on the side or laterally based on the longitudinal direction of the flow path member 600. In addition, the second assembly groove 760 may be a groove formed with a negative angle 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. You can. Of course, it is not limited to this and may be modified and designed by a person skilled in the art depending on the structure for selective bonding.

The valve frame 700 can be coupled to the body (B) through this coupling structure 710. Here, the connection with the flow path member 600 can be done 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 opening/closing valve 60 located in the inlet groove 30 section formed in the body (B). The on-off valve 60 is opened by the pressure of the fluid, and the opening of the on-off valve 60 allows the fluid to move through the through hole 732 and pressurize the soft pad 800. Accordingly, the soft pad 800 may be deformed by pressure from the fluid, and may affect the flow of fluid depending on the amount of deformation. This operation will be described in more detail later 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 in close contact with the inlet hole 35 and is opened and closed by the fluid flowing through the inlet hole 35 and in a closed position to prevent fluid from flowing through the inlet hole 35. The valve 60 is configured to expand and move between open positions that allow fluid to flow into the inlet groove 30 and then into the first and second maze-shaped fluid passages 20 and 40. The opening/closing valve 60 may be made of an elastically deformable material so that it can 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 the outer diameter of the through hole 732. The opening 730 may protrude and support the soft pad 800 at a predetermined distance from the seating surface 750. Additionally, the crossbar 731 formed in the direction crossing the through hole 732 can block and partition the open area of the through hole 732 to form two open areas. Here, the crossbar 731 functions to limit the inflow of fluid by partially blocking the open area of the through hole 732, and supports the opening 730 in the radial or transverse direction of the through hole 732. It can provide structural stability.

Figure 4 is a plan view showing the flow path member 600 according to an embodiment of the present invention, and Figure 5 is a bottom 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 includes an inner flow path 670 formed on the inner side facing the body B, an outer flow path 650 formed on a side facing the outside, and an inner flow path 670. ) and the outer flow passage 650 may include a through hole 620 so that the fluid flow is connected. The fluid flowing in the main flow path (MF) inside the body (B) is formed in the first maze-type fluid flow path (20) and the second maze-type fluid flow path (20) formed on the outer periphery of the body (B) by opening the inlet hole (35). 40), moves along the inner flow path 670 at the extended end of each flow path, and 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 to form 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 that forms a bypass path such as a zigzag type in order to extend the flow path, that is, limiting the immediate movement of fluid to the extended end to form a drip water supply hose (5). ), the time difference in which the fluid is discharged through each of the plurality of drip water supply holes (15, 55) can be further reduced.

Here, the flow path member 600 has a protrusion 622 and a protrusion 622 that protrude a predetermined length around the through hole 620 from the fluid convergence space 670a formed at the end of the inner flow path 670 toward the soft pad 800. It includes an open hole 621 formed on one side, the protrusion 622 is in contact with the soft pad 800 at the time of maximum deformation of the soft pad 800, and the open hole 621 is connected to the protrusion 622 and the soft pad. The protrusion 622 may be formed in a groove shape so that the through hole 620 is not closed when contact is made between the protrusions (800).

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

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

Referring to FIG. 6, as described above, the body B may be provided with collection spaces 12 formed along the outer peripheral surface at both ends to collect fluid passing through the outer flow path 650. Fluid may be discharged from the collection space 12 to the outside through drip water holes 15 and 55 formed in the hose.

Meanwhile, the body (B) is moved to the section where the first maze-type fluid passage 20 and the second maze-type fluid passage 40 located on both sides of the inlet hole 35 are formed, section by section in the outer circumferential direction. Different flow paths may be formed. For example, when dividing a section into a first area (S1), a second area (S2), and a third area (S3) as in this example, they can be formed by dividing them as shown in FIG. 7 below.

Additionally, the first maze-type fluid flow path 20 and the second maze-type fluid flow path 40 may be provided so that fluid flows are formed in opposite directions to each other about the hollow axis. For example, as in this example, it can be formed clockwise and counterclockwise to facilitate movement of fluid. The fluid may be moved to the collection space 12 where the flow ends just before discharge.

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

Figure 7(a) shows the first area (S1), where fluid flows in through the fluid inlet path 23 when the opening/closing valve 60 is opened from the inlet groove 30 side, and the first partition 21a It can be moved along the first flow path (F1) formed. Here, in the case of the first partition 21a, it may be extended in the direction facing each other so that the first flow path F1 is configured in a “ㄹ” shape, but the shape of the first partition 21a is not limited to this, and the shape of the first partition 21a may be a zigzag shape, etc. Together, they can be configured more freely.

Figure 7(b) shows the second area (S2), which is connected to the first flow path (F1) and flows into the second region (S2), and the second flow path formed by the second partition 21b. It can be moved along (F2). Here, in the case of the second partition wall 21b, the second partition wall 21b may be extended in a direction facing each other so that the second flow path F2 is configured in a zigzag shape. However, this is not limited to this and the shape of the second partition wall 21b can be configured more freely. there is.

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

Figure 8 shows that the opening/closing valve 60 is operated by the pressure of the fluid in the drip water nozzle 1 according to an embodiment of the present invention. Figure 8(a) shows the fluid passage width A1 being formed. This is a drawing, and FIG. 8(b) is a drawing showing that the fluid passage width A1 is not formed.

Referring to FIGS. 8(a) and 8(b), the soft pad 800 may be deformed as described above. The deformed soft pad 800 approaches the flow path member 600 in the fluid pressure direction P1 and may be deformed. Specifically, the fluid passes through the inlet hole 35 by opening the on-off valve 60, and a soft pad 800 that elastically blocks the through hole 732 in the process of passing through the open through hole 732. ) can be pressurized. That is, the fluid flows through a portion of the soft pad 800 that blocks the through hole 732 (for example, the central portion of the structural soft pad 800) in the direction in which the flow path member 600 is located (in this example, the discharge direction). By pressing in the same direction as M1, the soft member 600 is elastically deformed to be convex 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. 8(a), and may have a fluid passage width A1 as shown in FIG. 8(b). The width A1 may not be formed. That is, as the amount of elastic deformation increases, the fluid passage width A1 may decrease, and the soft pad 800 may come into contact with the protrusion 622 at a predetermined point in time when the amount of deformation increases. At this time, a flow of fluid may be formed through the open hole 621 described above.

When the fluid passage width is formed, the fluid enters in the entry direction (M1) and moves in the discharge direction (M2), thereby moving 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-mentioned protrusion 622, and the fluid moves by forming the open hole 621 as described above with reference to FIG. 5. can last for a certain amount of time. In the case of the open hole 621, as described above, it may be formed in the shape of a groove in the protrusion 622 so that the through hole 620 is not closed when the protrusion 622 and the soft pad 800 contact each other. Therefore, even when the soft pad 800 is in contact with the protrusion 622, fluid flowing in through the inner flow path 670 can flow into the through hole 620 via the open hole 621.

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

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

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

Referring to FIGS. 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 Figure 10(b), the broken line (rigid silicon) represents the relationship between pressure and flow rate in the body (B) without the on/off valve 60, flow member 600, valve frame 700, and soft pad 800. This is a graph showing . In Figure 10(b), the solid line (Flexible Silicon) represents the same state as in the present invention in which the opening/closing valve 60, the flow member 600, the valve frame 700, and the soft pad 800 are all present in the body (B). This is a graph showing the relationship between pressure and flow rate.

In the case of the drip water nozzle (1) of the present invention, the discharged flow rate increases rapidly up to a predetermined point due to an increase in pressure due to the supply of fluid, and then tends to increase gradually. On the other hand, in the case of a conventional drip water nozzle, the discharged flow rate increases to a similar level as the pressure increases. This is because, whereas in the case of a drip water hose using a conventional drip water nozzle, the discharge of fluid is determined by pressure, In the case of the drip water hose (5) to which the drip water 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 above-described soft pad 800 compensates for the pressure change formed inside the main flow passage MF during the elastic deformation process, thereby allowing the discharged flow rate to be adjusted according to the pressure.

Although representative embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications can be made 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, but should be determined not only by the claims described later but also by equivalents to the claims.

1: Drip water 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 hole
20: First labyrinth-type fluid flow path
21a: first bulkhead
21b: second bulkhead
21c: third bulkhead
23: fluid inlet
24: fluid outflow path
30: Inlet groove
35: inlet hole
40: Second maze-type fluid flow path
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: Absence of flow path
610: First guide structure
620: Tonggong
621: open ball
622: protrusion
630: 1st assembly structure
640: Second assembly structure
650: Outer passage
660: Second guide structure
670: inner flow passage
670a: Fluid confluence space
700: Valve frame
710: Combined structure
720: 1st assembly groove
730: opening
731: crossbar
732: Through hole
750: Seating surface
760: 2nd assembly groove
800: Soft pad
F1: 1st Euro
F2: 2nd Euro
F3: 3rd Euro
MF: Main Euro
A1: Fluid passage width
M1: Entry direction
M2: discharge direction
P1: Pressure direction
R: Direction of fluid passage
S1: Area 1
S2: Second area
S3: Third area
B: body
S: Fluid movement path

Claims (10)

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) that determines 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 outer periphery of the body (B) on the on-off valve (60) side 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 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,
The flow path member 600 is,
An inner flow path 670 formed on the inner surface facing the body B, an outer flow path 650 formed on a surface facing the outside, and the inner flow path 670 and the outer flow path 650 are connected in terms of fluid flow. Comprising a through hole 620,
The fluid flowing in the main flow path inside the body (B) is,
It moves along the flow path formed on the outer periphery of the body (B) by opening the inlet hole 35, moves along the inner flow path 670 at the extended end of the flow path, and moves along the inner flow path 670. At the extended end, it moves to the outside of the flow path member 600 through the through hole 620 and moves along the outer flow path 650.
Drip water nozzle for pressure compensated irrigation.
delete delete In claim 1,
The body (B) is,
Collection spaces 12 formed along the outer peripheral surface are provided at both ends to collect the fluid passing through the outer flow path 650, and a drip water supply hole 15 formed in the hose 5 from the collection space 12, 55) A drip water nozzle for pressure-compensated irrigation through which fluid is discharged to the outside.
In claim 1,
The flow path member 600 is,
A protrusion 622 protruding a predetermined length centered on the through hole 620 from the fluid convergence space 670a formed at the end of the inner flow path 670 toward the soft pad 800, and a protrusion formed on one side of the protrusion 622. Contains an open hole (621),
The protrusion 622 is in contact with the soft pad 800 at the time of maximum deformation of the soft pad 800, and the open hole 621 is in contact between the protrusion 622 and the soft pad 800. A drip water nozzle for pressure compensation irrigation, wherein the through hole 620 is formed in a groove shape on the protrusion 622 to prevent it from being closed.
In claim 1,
A drip water nozzle for pressure compensation irrigation, wherein the flow path formed on the outer periphery of the body (B) is guided by different partition structures in the extended section.
In claim 1,
The body (B) is,
A drip water nozzle for pressure compensation irrigation that is formed symmetrically toward both ends around the inlet hole 35 located in the center of the body (B).
In claim 1,
The valve frame 700 is,
A seating groove 750 formed so that the soft pad 800 can be seated in response, and a through hole 732 formed so that the fluid can pressurize the soft pad 800 when the opening/closing valve 60 is opened. ) is formed, a drip water nozzle for pressure-compensated irrigation.
In claim 8,
The through hole 732 is located inside an opening 730 that protrudes a predetermined length toward the soft pad 800, and an inner surface of the opening 730 extends in a direction across the inner diameter of the through hole 732. A drip water nozzle for pressure-compensated irrigation, where both ends of the crossbar (731) are connected.
In claim 9,
The crossbar 731 is,
A drip water nozzle for pressure compensation irrigation that extends to connect the radial direction of the through hole (732) and blocks the open area of the through hole (732) by the width based on the extension direction.