Flow-adjustable water dropper for farmland drip irrigation

Abstract

The utility model relates to the technical field of farmland irrigation equipment, and discloses a flow-adjustable water dropper for farmland drip irrigation, which comprises a mounting seat, the top of the mounting seat is fixedly connected with an embossed pipe, the outer side of the embossed pipe is in threaded connection with a cap, and the outer side of the embossed pipe is in threaded connection with the cap. The bottom of the mounting seat is fixedly connected with a backflow-preventing water guide mechanism, the outer side of the cover cap is fixedly connected with a flow precise adjusting mechanism, and the backflow-preventing water guide mechanism comprises a conical head. According to the backflow-preventing water guide mechanism, the sliding rod and the sealing rubber mat act through water flow pressure, backflow prevention is achieved, system faults are avoided, impurities are reduced, the service life of a system is prolonged, and stability is improved; the flow accurate adjusting mechanism drives a first positioning column through a positioning pull block, the flow can be accurately adjusted, a user can adjust and control according to crop requirements, improper flow is avoided, the irrigation efficiency and the resource utilization rate are improved, and efficient drip irrigation of a farmland is assisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to farmland irrigation equipment technical field especially relates to a adjustable flow dripper for farmland drip irrigation. BACKGROUND

[0002] Drip irrigation technology is a kind of efficient water-saving irrigation mode, by the dripper installed on the capillary tube, water slowly, evenly and quantitatively drip into the soil near crop root. In the face of water resources increasingly nervous, drip irrigation technology can greatly improve water resource utilization, reduce evaporation and leakage loss, is widely used in agricultural production, help sustainable agricultural development, improve the environment of farmland irrigation.

[0003] Crop growth needs accurate water supply, drip irrigation technology can supply water according to crop demand, avoid overflooding or drought, and is closely related to planting work. Dripper is mainly composed of water inlet, flow channel, water outlet and other components. Water inlet introduces water flow, flow channel controls flow, and water outlet drips water. The overall process is that water source is treated by the first hub, transported to the field by pipeline, and realizes accurate irrigation of crops through dripper;

[0004] In the prior art, the dripper is not equipped with an anti-backflow mechanism, so the drip irrigation system is prone to failure due to water backflow, and impurities such as mud and water are also easy to enter, which will seriously affect the normal operation of the system, shorten the service life of the system, reduce the stability and reliability of the drip irrigation, and the flow of the dripper in the prior art is not accurate and intuitive, so the drip irrigation flow cannot be accurately controlled, which is prone to water resource waste due to excessive flow or crop growth demand cannot be met due to insufficient flow, thereby greatly reducing irrigation efficiency and resource utilization. Therefore, an adjustable flow dripper for farmland drip irrigation is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an adjustable flow dripper for farmland drip irrigation, which aims to improve the problem that the drip irrigation system in the prior art is prone to failure due to water backflow, and impurities such as mud and water are easy to enter the system, so that the drip irrigation system cannot be stably and reliably operated, and the service life is shortened.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An adjustable flow dripper for farmland drip irrigation, comprising a mounting seat, the top of the mounting seat is fixedly connected with a convex tube, the outer side of the convex tube is threadedly connected with a cap, the bottom of the mounting seat is fixedly connected with an anti-backflow water guide mechanism, and the outer side of the cap is fixedly connected with a flow precision adjustment mechanism.

[0008] The anti-backflow water guide mechanism comprises a conical head, the bottom of the mounting seat is fixedly connected with a water guide pipe, the bottom of the water guide pipe is fixedly connected to the top of the conical head, and the inside of the conical head is slidably connected with an anti-backflow sealing assembly;

[0009] The anti-backflow sealing assembly comprises a fixed ring, the outside of the fixed ring is fixedly connected to the inside of the conical head through a connecting column, the inside of the fixed ring is slidably connected with a sliding rod, the top of the sliding rod is fixedly connected with a limiting block, the bottom of the sliding rod is fixedly connected with a sealing rubber pad, and the sealing rubber pad can cover the water inlet of the conical head.

[0010] As a further description of the above technical solution:

[0011] The flow precision adjusting mechanism comprises an edge plate, the edge plate is fixedly connected to the bottom outside of the cap, the inside of the edge plate is slidably connected with a positioning column one, the top of the positioning column one is fixedly connected with a positioning pull block, and the outside of the positioning column one is sleeved with a positioning spring.

[0012] As a further description of the above technical solution:

[0013] The top of the mounting seat is provided with a positioning groove, the top of the mounting seat is provided with a scale groove, the bottom of the positioning column one is slidably connected to the inside of the positioning groove, and the pointing direction of the top of the positioning pull block points to the scale groove.

[0014] As a further description of the above technical solution:

[0015] The outside of the sliding rod is sleeved with a sealing spring, one end of the sealing spring is fixedly connected to the top of the fixed ring, and the other end of the sealing spring is fixedly connected to the limiting block of the sliding rod.

[0016] As a further description of the above technical solution:

[0017] One end of the positioning spring is fixedly connected to the outside of the positioning column one, and the other end of the positioning spring is fixedly connected to the inside of the cap.

[0018] As a further description of the above technical solution:

[0019] The inside of the convex rib pipe is fixedly connected with a water blocking rib, the inside of the water blocking rib is slidably connected with a sleeve, the top of the sleeve is fixedly connected to the inside top of the cap, the top of the cap is provided with a water outlet, and the outside of the cap is fixedly connected with an anti-skid strip.

[0020] As a further description of the above technical solution:

[0021] The inner side of the sleeve is slidably connected with a connecting pipe, and the bottom of the connecting pipe is fixedly connected to the top of the mounting seat.

[0022] As a further description of the above technical solution:

[0023] The inner side of the connecting pipe is slidably connected with a positioning column two, and the top of the positioning column two is fixedly connected to the inner top of the cap.

[0024] The utility model has the advantages of the following:

[0025] 1. In the utility model, the anti-backflow water guide mechanism is driven by water pressure to work with the sliding rod and the sealing rubber pad structure, when the water flow reaches the minimum drip irrigation flow, the water flow lifts the sealing rubber pad, the sliding rod overcomes the elastic force of the sealing spring and slides up, and the water flow is conducted; when the dripper is deeply immersed in mud, under the pressure of the sealing spring and the mud pressure, the sealing rubber pad is attached to the water inlet of the conical head, thus realizing the effect of preventing water backflow, avoiding the drip irrigation system failure caused by water backflow, ensuring the normal operation of the drip irrigation system, reducing the possibility of mud and other impurities entering the drip irrigation system, prolonging the service life of the drip irrigation system, and improving the stability and reliability of the drip irrigation.

[0026] 2. In the utility model, the flow precision adjusting mechanism is driven by the positioning pull block to work with the positioning column one, the positioning pull block is pulled outward to make the positioning column one separate from the positioning groove, the cap is rotated, the pointer indicates the appropriate flow by selecting the scale groove, the positioning pull block is loosened, the positioning column one is reset and clamped into the positioning groove, thus realizing the effect of flow precision adjustment, allowing the user to accurately control the drip irrigation flow according to the crop demand, avoiding the problems of water resource waste caused by excessive flow or the crop growth demand not met caused by insufficient flow, and greatly improving the irrigation efficiency and resource utilization rate of the drip irrigation system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A three-dimensional schematic view of the adjustable flow dripper for farmland drip irrigation is provided for the utility model;

[0028] Figure 2 A structure schematic view of the water guide pipe of the adjustable flow dripper for farmland drip irrigation is provided for the utility model;

[0029] Figure 3 For Figure 2 An enlarged view of position A in the middle;

[0030] Figure 4 For Figure 2 An enlarged view of position B in the middle;

[0031] Figure 5 A structure schematic view of the positioning groove of the adjustable flow dripper for farmland drip irrigation is provided for the utility model;

[0032] Figure 6 The utility model provides a kind of positioning column two structural schematic diagram of adjustable flow dripper for farmland drip irrigation.

[0033] Legend:

[0034] 1, mounting seat;2, water guide pipe;3, conical head;4, fixed ring;5, sliding rod;6, sealing rubber pad;7, sealing spring;8, cap;9, rim plate;10, positioning column one;11, positioning spring;12, positioning pull block;13, scale groove;14, positioning groove;15, rib pipe;16, water baffle strip;17, positioning column two;18, sleeve;19, connecting pipe;20, anti-skid strip. Specific embodiments

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0036] With reference to Figure 1 , Figure 2 , Figure 3 and Figure 5 , an embodiment provided by the utility model: a kind of adjustable flow dripper for farmland drip irrigation, including mounting seat 1, mounting seat 1 as the basic support component of dripper, for connecting and fixed other each component, it also plays certain load bearing effect, ensure the stability of dripper in use process, the top of mounting seat 1 is fixedly connected with rib pipe 15, it plays the effect of connecting mounting seat 1 and cap 8, so that cap 8 can be conveniently rotated and fixed, to realize the regulation of dripper flow, and increase the structural strength and stability of dripper, the outside of rib pipe 15 is screw connected with cap 8, cap 8 is the key component of dripper flow regulation and water flow control, by rotating cap 8, the relative position of its internal structure and other components can be changed, to realize the control of water flow passage and the regulation of flow, the bottom of mounting seat 1 is fixedly connected with backflow prevention water guide mechanism, the outside of cap 8 is fixedly connected with flow precision regulation mechanism;

[0037] backflow prevention water guide mechanism includes conical head 3, after insertion, it can use conical surface to open hole, so that water guide pipe 2 can be smoothly inserted and be wrapped fixed, to realize the installation of dripper, the bottom of mounting seat 1 is fixedly connected with water guide pipe 2, as the transmission passage of water flow, water in drip irrigation pipe is introduced to other parts of dripper, to provide water source for subsequent flow regulation and drip irrigation, the bottom of water guide pipe 2 is fixedly connected at the top of conical head 3, conical head 3 is slidably connected with backflow prevention sealing assembly in the inside.

[0038] The anti-backflow sealing assembly comprises a fixed ring 4 that provides guidance and positioning for the sliding of the slide rod 5, the outer side of the fixed ring 4 is fixedly connected to the inner side of the conical head 3 through a connecting column, the inner side of the fixed ring 4 is slidably connected with the slide rod 5, the slide rod 5 drives the sealing rubber pad 6 to move up and down under the action of water flow pressure and the sealing spring 7, thereby realizing the sealing and opening of the water inlet of the conical head 3, so as to prevent the backflow of water flow, the top of the slide rod 5 is fixedly connected with a limiting block, the bottom of the slide rod 5 is fixedly connected with the sealing rubber pad 6 as a key sealing component for preventing backflow, which can tightly fit the water inlet at the bottom of the conical head 3 under the driving of the slide rod 5, thereby preventing the backflow of water flow and ensuring the normal operation of the drip irrigation system, and the sealing rubber pad 6 can cover the water inlet of the conical head 3;

[0039] The outer side of the slide rod 5 is sleeved with the sealing spring 7 to provide a restoring force for the slide rod 5 and the sealing rubber pad 6, so that the sealing rubber pad 6 can be restored in time and tightly fit the water inlet of the conical head 3 when the water flow pressure disappears or decreases, thereby preventing the backflow of water flow, one end of the sealing spring 7 is fixedly connected to the top of the fixed ring 4, and the other end of the sealing spring 7 is fixedly connected to the bottom of the limiting block of the slide rod 5;

[0040] The inner side of the ribbed tube 15 is fixedly connected with a water blocking rib 16 for disturbing water flow, slowing down water flow speed and uniformly distributing water flow, which helps to improve the uniformity and stability of drip irrigation, the inner side of the water blocking rib 16 is slidably connected with a sleeve 18, the sleeve 18 is slid relative to the connecting pipe 19 to realize the opening and closing of the water flow channel, the top of the sleeve 18 is fixedly connected to the inner top of the cap 8, the top of the cap 8 is provided with a water outlet, the outer side of the cap 8 is fixedly connected with an anti-skid strip 20, the anti-skid strip 20 can increase the friction force to facilitate the rotation and adjustment of the cap 8;

[0041] The inner side of the sleeve 18 is slidably connected with the connecting pipe 19, the connecting pipe 19 as a part of water flow transmission cooperates with the sleeve 18 to realize the control of the water flow channel, the bottom of the connecting pipe 19 is fixedly connected to the top of the mounting base 1;

[0042] The inner side of the connecting pipe 19 is slidably connected with a positioning column 17, the relative position change between the positioning column 17 and the connecting pipe 19 during the rotation of the cap 8 helps to realize the control and flow adjustment of the water flow channel, and the top of the positioning column 17 is fixedly connected to the inner top of the cap 8.

[0043] Referring to Figure 1 , Figure 2 , Figure 4 and Figure 6The flow precision adjusting mechanism comprises an edge plate 9 as a supporting component of the flow precision adjusting mechanism, used for mounting and fixing a positioning column I 10 and other components, providing a structural basis for positioning operation of flow adjustment, and fixedly connected to the bottom outer side of the cap 8. The inside of the edge plate 9 is slidably connected with the positioning column I 10. In the flow adjustment process, the positioning column I 10 is positioned by cooperating with the positioning groove 14 on the top of the mounting seat 1, so as to fix the position of flow adjustment and ensure the accuracy and stability of flow adjustment. The top of the positioning column I 10 is fixedly connected with a positioning pull block 12, which facilitates the operation of the positioning column I 10 by the operator. The outer side of the positioning column I 10 is sleeved with a positioning spring 11, which provides a reset force for the positioning column I 10. After the operator releases the positioning pull block 12, the positioning column I 10 can be quickly reset to be clamped into the inside of the positioning groove 14, so as to fix the cap 8 and lock the flow adjustment.

[0044] The top of the mounting seat 1 is provided with the positioning groove 14, which cooperates with the positioning column I 10 to lock the flow adjustment position of the cap 8. The top of the mounting seat 1 is provided with a scale groove 13, which cooperates with a pointing mark to indicate the flow value of the dripper. The bottom of the positioning column I 10 is slidably connected to the inside of the positioning groove 14. The top of the positioning pull block 12 is provided with the pointing mark pointing to the scale groove 13.

[0045] One end of the positioning spring 11 is fixedly connected to the outer side of the positioning column I 10, and the other end of the positioning spring 11 is fixedly connected to the inside of the cap 8.

[0046] Working principle: when drip irrigation is needed, first, use the punch to punch holes with appropriate spacing on the drip irrigation pipe, then insert the conical head 3 into the hole on the drip irrigation pipe, the taper surface of the conical head 3 will expand the hole, when inserted to the depth of the water guide pipe 2, the hole will shrink to wrap the water guide pipe 2, completing the fixing and installation of the dripper;

[0047] Then pull the positioning pull block 12 outward, so that the positioning column I 10 at the bottom of the positioning pull block 12 overcomes the tension of the positioning spring 11, and the positioning column I 10 is separated from the positioning groove 14 on the top of the mounting seat 1. Thus, the cap 8 can be rotated. When the cap 8 is rotated, the pointing mark on the top of the positioning pull block 12 points to the scale groove 13 on the top of the mounting seat 1. When the appropriate flow scale is seen, the positioning pull block 12 can be released. The positioning column I 10 is reset under the elastic force of the positioning spring 11 and clamped into the inside of the positioning groove 14, completing the fixing and realizing the precise adjustment of flow;

[0048] When the water pipe inside the water, unscrew the cap 8, so that the cap 8 bottom of the positioning column two 17 off the water pipe 2, remove the water pipe 2 of the plug, let the water flow from the water pipe 2 continue to flow to the inside of the cap 8, and make the sleeve 18 and connecting pipe 19 gradually staggered, the realization of water flow, finally the water flow from the cap 8 top of the water outlet outward, complete drip irrigation;

[0049] When the water pipe inside the water flow to the minimum drip irrigation flow, the water flow to the inside of the conical head 3 sealing rubber pad 6, sealing rubber pad 6 top of the slide bar 5 overcome the elastic force of the sealing spring 7 up, water pipe work will occur accidentally rotating and moving, with the gradually connected with the dripper into the mud water, mud water along the water inlet into the dripper, and the density of the mud water than water, so that the sealing rubber pad 6 in the sealing spring 7 and the pressure of the mud water under the pressure of the conical head 3 bottom of the water inlet, complete the anti backflow operation.

[0050] Finally, it should be noted that: the above described only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. An adjustable flow emitter for agricultural drip irrigation comprising a mounting base (1), characterized in that: The top of the mounting seat (1) is fixedly connected with a convex tube (15), the outer side of the convex tube (15) is threadedly connected with a cap (8), the bottom of the mounting seat (1) is fixedly connected with an anti-backflow water guide mechanism, and the outer side of the cap (8) is fixedly connected with a flow precision adjusting mechanism. The anti-backflow water guide mechanism comprises a conical head (3), the bottom of the mounting seat (1) is fixedly connected with a water guide pipe (2), the bottom of the water guide pipe (2) is fixedly connected to the top of the conical head (3), and the inside of the conical head (3) is slidably connected with an anti-backflow sealing assembly. The anti-backflow sealing assembly comprises a fixed ring (4), the outer side of the fixed ring (4) is fixedly connected to the inner side of the conical head (3) through a connecting column, the inner side of the fixed ring (4) is slidably connected with a sliding rod (5), the top of the sliding rod (5) is fixedly connected with a limiting block, the bottom of the sliding rod (5) is fixedly connected with a sealing rubber pad (6), and the sealing rubber pad (6) can cover the water inlet of the conical head (3).

2. The flow-regulating dripper according to claim 1, characterized in that: The flow precision adjusting mechanism comprises an edge plate (9), the edge plate (9) is fixedly connected to the bottom outer side of the cap (8), the inside of the edge plate (9) is slidably connected with a positioning column I (10), the top of the positioning column I (10) is fixedly connected with a positioning pull block (12), and the outer side of the positioning column I (10) is sleeved with a positioning spring (11).

3. The flow-regulating dripper according to claim 2, characterized in that: The top of the mounting seat (1) is provided with a positioning groove (14), the top of the mounting seat (1) is provided with a scale groove (13), the bottom of the positioning column I (10) is slidably connected to the inner side of the positioning groove (14), and the direction mark at the top of the positioning pull block (12) points to the scale groove (13).

4. The flow-regulating dripper according to claim 1, wherein: The outer side of the sliding rod (5) is sleeved with a sealing spring (7), one end of the sealing spring (7) is fixedly connected to the top of the fixed ring (4), and the other end of the sealing spring (7) is fixedly connected to the limiting block bottom of the sliding rod (5).

5. The flow-regulating dripper according to claim 2, wherein: One end of the positioning spring (11) is fixedly connected to the outer side of the positioning column I (10), and the other end of the positioning spring (11) is fixedly connected to the inner side of the cap (8).

6. The flow-regulating dripline of claim 1, wherein: The inner side of the convex tube (15) is fixedly connected with a water blocking rib (16), the inner side of the water blocking rib (16) is slidably connected with a sleeve (18), the top of the sleeve (18) is fixedly connected to the inner top of the cap (8), the top of the cap (8) is provided with a water outlet, and the outer side of the cap (8) is fixedly connected with an anti-skid strip (20).

7. The flow-regulating dripline of claim 6, wherein: The inner side of the sleeve (18) is slidably connected with a connecting pipe (19), and the bottom of the connecting pipe (19) is fixedly connected to the top of the mounting seat (1).

8. The flow-regulating dripline of claim 7, wherein: The inner side of the connecting pipe (19) is slidably connected with a positioning column II (17), and the top of the positioning column II (17) is fixedly connected to the inner top of the cap (8). The inner side of the connecting pipe (19) is slidably connected with a positioning column II (17), and the top of the positioning column II (17) is fixedly connected to the inner top of the cap (8).

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