CN216415446U - Positive pressure feedback jet pulse water dropper and drip irrigation system - Google Patents
Positive pressure feedback jet pulse water dropper and drip irrigation system Download PDFInfo
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- CN216415446U CN216415446U CN202220266273.0U CN202220266273U CN216415446U CN 216415446 U CN216415446 U CN 216415446U CN 202220266273 U CN202220266273 U CN 202220266273U CN 216415446 U CN216415446 U CN 216415446U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 230000002262 irrigation Effects 0.000 title claims abstract description 71
- 238000003973 irrigation Methods 0.000 title claims abstract description 71
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a malleation feedback efflux pulse dripper relates to water conservation agricultural technical field, can include: the main body is connected with a water filtering port, a jet cavity is arranged in the main body, and the tail end of the jet cavity is connected with two flow channels; the tail ends of the two flow channels are connected with water outlet cavities, the two water outlet cavities are connected to the same water outlet hole in a shared mode, and a plugging device is arranged between the tail ends of the two flow channels and can plug one of the flow channels under the impact action of water flow; the tail ends of the two flow passages are connected with a water pressure feedback pipe, and the water pressure feedback pipe is also connected with the top end of the jet cavity so as to change the flow direction of the fluid in the jet cavity. The utility model discloses still disclose the drip irrigation system who adopts above-mentioned malleation feedback efflux pulse water dropper. The utility model discloses can increase pulse amplitude, improve pulse turbulent intensity, reduce the average outflow of dripper, it is more even to water, can also increase anti jam ability.
Description
Technical Field
The utility model relates to a water conservation agricultural technology field especially relates to a malleation feedback efflux pulse water dropper and drip irrigation system.
Background
Drip irrigation is a high-efficiency water-saving irrigation technology and has wide application area worldwide. The blockage is a key technical problem influencing the development and application of the drip irrigation technology. The development of water and fertilizer integration technology, high sand content water drip irrigation technology and brackish water drip irrigation technology provides new requirements for drip irrigation anti-blocking technology.
The pulse drip irrigation technology has the characteristics of strong anti-blocking performance and high irrigation uniformity, and is an effective way for solving the problem of drip irrigation blocking. Most of the existing pulse drip irrigation technologies are based on a frequency conversion technology and an elastomer deformation and recovery technology, pulse water flow is generated, and a pulse drip irrigation system is formed. The frequency conversion pulse drip irrigation device is generally installed at the drip irrigation head part, utilizes the frequency conversion to change the water pump rotational speed and produces the pulse in the pipeline, and the pulse ripples will be through trunk line, lateral conduit just can reach hollow billet, water dropper, and pulse ripples transfer distance is longer, easily produces the decay, leads to the pulse effect to weaken. The pulse drip irrigation technology formed by the elastic material deformation and recovery technology has the defects of easy fatigue and damage due to long-time work of the elastic material, limited reliability and service life and relatively high manufacturing cost.
The pulse drip irrigation technology formed by the water jet technology better solves the problems of the pulse drip irrigation by the electronic frequency conversion technology and the elastic material technology. However, pulse drip irrigation formed by the existing water jet technology has the defects that water flow deflection is incomplete, jet flow can be output in two flow channels simultaneously, and the flow rate of a dripper is large and the amplitude is small.
Therefore, a novel jet pulse drip irrigation technology is provided to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a malleation feedback efflux pulse water dropper and drip irrigation system to solve the problem that above-mentioned prior art exists, can increase pulse amplitude, improve pulse turbulence intensity, reduce the average outflow of water dropper, it is more even to water, can also increase anti jam ability.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a positive pressure feedback jet pulse dripper, which comprises a main body, wherein the main body is connected with a water filtering port, a jet cavity is arranged in the main body, and the tail end of the jet cavity is connected with two runners; the tail ends of the two flow channels are connected with water outlet cavities, the two water outlet cavities are connected to the same water outlet hole in a shared mode, and a blocking device is arranged between the tail ends of the two flow channels and can block one of the flow channels; the tail ends of the two flow channels are connected with a water pressure feedback pipe, the water pressure feedback pipe is further connected with the top end of the jet cavity to change the flow direction of fluid in the jet cavity, and the blocking device can move between a first blocking position and a second blocking position in a reciprocating mode under the impact action of water flow so that the two flow channels are alternately communicated with the water outlet hole.
Preferably, a water inlet groove, a contraction section and a jet pipe which are sequentially communicated are further arranged in the main body, the water filtering opening covers the upper part of the water inlet groove, and the tail end of the jet pipe is connected with the top end of the jet cavity; a splitter is arranged in the middle of the tail end of the jet cavity, the splitter divides the jet cavity into two channels, and the two channels are respectively connected with the front ends of the two flow channels;
the contraction section is of a conical structure with a large front part and a small back part, the jet pipe is of a rectangular structure, and the jet cavity is of a trapezoidal structure with a small front part and a large back part;
the water filtering port is in a transverse grid shape, a vertical grid shape, a grid shape or a mesh shape.
Preferably, the plugging device adopts a water diversion plate, the two runners are separated by a middle partition plate, and the water diversion plate is rotatably mounted at the tail end of the middle partition plate through a water diversion plate rotating shaft; the two side wall surfaces of the water outlet cavity are provided with limit blocks, the limit blocks can limit the water distribution plate, and the limit blocks are located on one side, close to the tail end of the flow channel, of the water outlet cavity.
Preferably, the positive pressure feedback jet pulse dripper is processed and formed by adopting an injection molding process.
Preferably, the positive pressure feedback jet pulse dripper is a sheet type positive pressure feedback jet pulse dripper, the sheet type positive pressure feedback jet pulse dripper further comprises an upper cover plate and a lower cover plate, and the main body is positioned between the upper cover plate and the lower cover plate; the water filtering opening is arranged on the upper cover plate, and the water outlet opening is arranged on the lower cover plate.
Preferably, the water outlet hole corresponds to the central position of the water outlet cavity.
Preferably, the positive pressure feedback jet flow pulse dripper is a cylindrical positive pressure feedback jet flow pulse dripper, the cylindrical positive pressure feedback jet flow pulse dripper comprises a cylindrical shell, the main body is arranged in the shell, a water filtering opening of the main body is exposed, and the water pressure feedback pipe is arranged around the circumference;
a water inlet groove, a contraction section and a jet pipe which are communicated in sequence are further arranged in the main body, the water filtering opening covers the upper part of the water inlet groove, and the tail end of the jet pipe is connected with the top end of the jet cavity; the middle of the tail end of the jet cavity is provided with a splitter, the splitter divides the jet cavity into two channels, and the two channels are respectively connected with the front ends of the two runners.
The utility model also provides a drip irrigation system, including drip irrigation pipe, be provided with a plurality of foretell malleation feedback jet pulse water dropper in the drip irrigation pipe, it is provided with the trompil, every to correspond on the drip irrigation pipe the trompil homoenergetic can with one the apopore of malleation feedback jet pulse water dropper communicates.
The utility model also provides a drip irrigation system, including drip irrigation pipe, be provided with a plurality of foretell malleation feedback efflux pulse drippers in the drip irrigation pipe, it is provided with the trompil, every to correspond on the drip irrigation pipe the trompil homoenergetic with one the apopore of malleation feedback efflux pulse dripper communicates, paste down the bottom surface of apron on drip irrigation pipe's the inner wall, the trompil with the apopore is corresponding.
The utility model also provides a drip irrigation system, including drip irrigation pipe, be provided with a plurality of foretell malleation feedback efflux pulse drippers in the drip irrigation pipe, it is provided with the trompil, every to correspond on the drip irrigation pipe the trompil homoenergetic with one the apopore intercommunication of malleation feedback efflux pulse dripper, the surface of cylindrical malleation feedback efflux pulse dripper inlays on drip irrigation pipe's the inner wall, the trompil with the apopore corresponds.
The utility model discloses following beneficial technological effect has been gained for prior art:
1. the utility model switches the jet flow wall attachment direction by applying the water pressure feedback control technology, drives the water flow to periodically flow in the two runners, and carries out pulse turbulence and impact on the water flow in the runners, thereby being beneficial to scouring the runners, improving the anti-blocking capability of the drippers, reducing the flow state index of the irrigator and leading the dripping water to be more uniform;
2. the utility model uses the plugging device to plug the outlet at the end of the flow channel, the jet flow can only be output along one flow channel, the pulse amplitude is increased, the pulse turbulence intensity is improved, the average outflow of the drippers is reduced, and the irrigation is more uniform;
3. the utility model discloses save current pulse drip irrigation system's electron frequency conversion and elastomer structure, simplify the impulse generator structure, impulse generator's reliable operation, durable, convenient to use, longe-lived.
The utility model discloses other technical scheme that record in the specification have still gained following beneficial technological effect for prior art:
the utility model discloses but impulse generator injection moulding technology processing and shaping, manufacturing cost reduces, and construction simple to operate can make serialization, pluralism's pulse water dropper, satisfies different pulse drip irrigation system's demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a three-dimensional schematic view of a sheet-type positive pressure feedback fluidic impulse dripper of an embodiment I;
FIG. 2 is a longitudinal cross-sectional view of the body of FIG. 1;
FIG. 3 is a cross-sectional view of the inner surface of a cylindrical positive pressure feedback fluidic impulse dripper of the second embodiment;
FIG. 4 is a cross-sectional view of the outer surface of a cylindrical positive pressure feedback fluidic pulse dripper of the second embodiment;
description of reference numerals: 1. an upper cover plate; 2. a main body; 3. a lower cover plate; 4. a water filtering port; 5. a water diversion plate rotating shaft; 6. a water outlet hole; 2-1, a water inlet tank; 2-2, a shrink tube; 2-3, a jet pipe; 2-4, a water pressure feedback pipe; 2-5, a jet flow cavity; 2-6, a water distribution plate; 2-7, splitting; 2-8, a flow channel; 2-9, a water outlet cavity; 2-10 parts of a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a malleation feedback efflux pulse water dropper and drip irrigation system to solve the problem that above-mentioned prior art exists, can increase pulse amplitude, improve pulse turbulence intensity, reduce the average outflow of water dropper, it is more even to water, can also increase anti jam ability.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1-2, the present embodiment provides a positive pressure feedback jet pulse dripper, preferably a sheet-type positive pressure feedback jet pulse dripper, mainly comprising an upper cover plate 1, a main body 2 and a lower cover plate 3; the upper cover plate 1 is provided with a water filtering hole 4, and the lower cover plate 3 is provided with a water outlet hole 6; the main body 2 comprises a water inlet groove 2-1, a contraction pipe 2-2, a jet pipe 2-3, a water pressure feedback pipe 2-4, a jet cavity 2-5, a water division plate 2-6, a splitter 2-7, a flow channel 2-8, a water outlet cavity 2-9 and a limiting block 2-10; the water inlet groove 2-1 is positioned at the foremost end of the main body 2, the rear part of the water inlet groove 2-1 is connected with a contraction pipe 2-2 with a big front part and a small rear part, the rear part of the contraction pipe 2-2 is connected with a rectangular jet pipe 2-3, and the rear part of the jet pipe 2-3 is connected with a trapezoidal jet cavity 2-5 with a small front part and a big rear part; two side wall surfaces at the top end of the jet cavity 2-5 are respectively provided with a hole, the tail end wall surfaces of the runners 2-8 at the two sides are respectively provided with a hole, the two holes at the same side are communicated by a channel, and two water pressure feedback pipes 2-4 at the left side and the right side are formed; a splitter 2-7 is arranged in the middle of the bottom surface of the jet cavity 2-5, and the splitter 2-7 divides the jet cavity 2-5 into two channels which are respectively connected with the runners 2-8 on the left side and the right side; the tail end of the middle partition plate of the left and right flow passages 2-8 is provided with a water distribution plate 2-6, one end of the water distribution plate 2-6 is punched and sleeved on a water distribution plate rotating shaft 5, and the water distribution plate rotating shaft 5 penetrates through the upper cover plate 1, the water distribution plate 2-6 of the main body 2 and the lower cover plate 3; the water outlet cavity 2-9 is positioned at the tail end of the flow channel 2-8; the lower cover plate 3 corresponding to the center of the water outlet cavity 2-9 is provided with a hole to form a water outlet hole 6.
In this embodiment, as shown in fig. 1 and fig. 2, the limiting blocks 2 to 10 are located on two side wall surfaces of the water outlet cavity 2 to 9, and are limiting devices of the water diversion plates 2 to 6 and outlet plugging devices of the flow passages 2 to 8.
In the embodiment, the water filtering port 4 covers the water inlet tank 2-1, and the water filtering port 4 has a plurality of schemes such as a horizontal grid shape, a vertical grid shape, a mesh shape and the like.
In this embodiment, still disclose a drip irrigation system, including drip irrigation pipe, drip irrigation pipe can adopt drip irrigation pipe or drip irrigation zone, is provided with a plurality of piece formula load feedback efflux pulse water droppers in the drip irrigation pipe, and the bottom surface laminating of the lower apron 3 of piece formula load feedback efflux pulse water dropper is on drip irrigation pipe's inner wall to corresponding to the position trompil of apopore 6 on the drip irrigation pipe wall, the trompil diameter is the same with apopore 6.
The operating principle of the drip irrigation system in this embodiment is as follows:
pressure water flow in the drip irrigation pipeline enters the water inlet groove 2-1 from the water filtering port 4, passes through the jet pipe 2-3 and then enters the incident flow cavity 2-5 to form jet flow; attaching to one side wall surface of the jet flow cavity 2-5 under the action of jet flow entrainment, entering a flow channel 2-8 of the side wall surface, and finally reaching a water outlet cavity 2-9; when the water flow reaches the water outlet cavity 2-9, one part of the water flow drops from the water outlet hole 6, and the other part of the water flow acts on the jet flow position behind the jet flow pipe 2-3 through the water pressure feedback pipe 2-4 to exert pressure on the jet flow so as to form positive pressure feedback action, so that the jet flow deflects and attaches to the wall surface on the other side of the jet flow cavity 2-5 to be output along the side wall surface flow channel;
the jet flow is cyclically reciprocated in such a way, so that the jet flow is periodically switched in the flow channels 2-8 at the left side and the right side, and pulse water flows are respectively generated in the two flow channels 2-8; when water flow enters the water outlet cavity 2-9 from the flow channel 2-8 at one side, the water diversion plate 2-6 is impacted to turn to the other side wall surface of the water outlet cavity 2-9, and the limiting block 2-10 and the water diversion plate 2-6 block the outlet of the flow channel 2-8 at the other side, so that the water flow is completely output from the flow channel at one side.
Example two
The embodiment is an improvement on the basis of the first embodiment, and the improvement is as follows: as shown in fig. 3-4, the positive pressure feedback jet pulse dripper is a cylindrical positive pressure feedback jet pulse dripper, a splitter 2-7 of the cylindrical positive pressure feedback jet pulse dripper divides a jet cavity 2-5 into two channels, the front ends of the two channels 2-8 are respectively communicated with the two adjacent channels, wherein the channels 2-8 may comprise a plurality of vertical channels sequentially communicated end to end, and the water pressure feedback pipes 2-4 are arranged around the circumference.
When the cylindrical positive pressure feedback jet pulse dripper is arranged in the drip irrigation pipeline, the outer surface of the cylindrical positive pressure feedback jet pulse dripper is embedded on the inner wall of the drip irrigation pipeline, holes are formed in the wall surface of the drip irrigation pipeline corresponding to the centers of the water outlet cavities 2-9, the area of each hole is smaller than that of each water outlet cavity 2-9, and at the moment, the holes in the wall surface of the drip irrigation pipeline can serve as water outlet holes and are communicated with the water outlet cavities 2-9.
In this embodiment, the main body may include a plurality of water dropping units, and any one of the water dropping units includes:
the tail end of the jet cavity is connected with two runners; the tail end of any flow passage is also provided with a plugging device, each flow passage is connected with a water pressure feedback pipe, and the water pressure feedback pipe is also connected with the top end of the jet cavity so as to change the flow direction of the fluid in the jet cavity;
besides, except the two water dropping units at the head end and the tail end, one of the two flow passages of any water dropping unit and one flow passage of the water dropping unit positioned at the upstream are connected to the same water outlet cavity and share the same plugging device; the other one is connected to another water outlet cavity in a flow channel in the downstream water dripping unit and shares the same plugging device, the water outlet cavity is connected with a water outlet hole, and the plugging device can move between a first plugging position and a second plugging position in a reciprocating mode under the impact action of water flow.
It should be noted that, as is apparent to those skilled in the art, the present invention is not limited to the details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A positive pressure feedback jet pulse dripper comprises a main body, wherein the main body is connected with a water filtering port, a jet cavity is arranged in the main body, and the tail end of the jet cavity is connected with two runners; the method is characterized in that: the tail ends of the two flow channels are connected with water outlet cavities, the two water outlet cavities are connected to the same water outlet hole in common, a blocking device is further arranged between the tail ends of the two flow channels, and the blocking device can block one of the flow channels; the tail ends of the two flow channels are connected with a water pressure feedback pipe, the water pressure feedback pipe is further connected with the top end of the jet cavity to change the flow direction of fluid in the jet cavity, and the blocking device can move between a first blocking position and a second blocking position in a reciprocating mode under the impact action of water flow so that the two flow channels are alternately communicated with the water outlet hole.
2. The positive pressure feedback jet pulse dripper of claim 1, wherein: a water inlet groove, a contraction section and a jet pipe which are communicated in sequence are further arranged in the main body, the water filtering opening covers the upper part of the water inlet groove, and the tail end of the jet pipe is connected with the top end of the jet cavity; a splitter is arranged in the middle of the tail end of the jet cavity, the splitter divides the jet cavity into two channels, and the two channels are respectively connected with the front ends of the two flow channels;
the contraction section is of a conical structure with a large front part and a small back part, the jet pipe is of a rectangular structure, and the jet cavity is of a trapezoidal structure with a small front part and a large back part;
the water filtering port is in a transverse grid shape, a vertical grid shape, a grid shape or a mesh shape.
3. The positive pressure feedback jet pulse dripper of claim 1, wherein: the plugging device adopts a water distribution plate, the two runners are separated by a middle partition plate, and the water distribution plate is rotatably arranged at the tail end of the middle partition plate through a water distribution plate rotating shaft; the two side wall surfaces of the water outlet cavity are provided with limit blocks, the limit blocks can limit the water distribution plate, and the limit blocks are located on one side, close to the tail end of the flow channel, of the water outlet cavity.
4. The positive pressure feedback jet pulse dripper of claim 1, wherein: the positive pressure feedback jet pulse dripper is processed and formed by adopting an injection molding process.
5. The positive pressure feedback jet pulse dripper of any one of claims 1 to 4, wherein: the positive pressure feedback jet flow pulse dripper is a sheet type positive pressure feedback jet flow pulse dripper, the sheet type positive pressure feedback jet flow pulse dripper further comprises an upper cover plate and a lower cover plate, and the main body is positioned between the upper cover plate and the lower cover plate; the water filtering opening is arranged on the upper cover plate, and the water outlet opening is arranged on the lower cover plate.
6. The positive pressure feedback jet pulse dripper of claim 5, wherein: the water outlet hole corresponds to the center position of the water outlet cavity.
7. The positive pressure feedback jet pulse dripper of claim 1, wherein: the positive pressure feedback jet flow pulse dripper is a cylindrical positive pressure feedback jet flow pulse dripper, the cylindrical positive pressure feedback jet flow pulse dripper comprises a cylindrical shell, the main body is arranged in the shell, a water filtering port of the main body is exposed, and the water pressure feedback pipe is arranged around the circumference;
a water inlet groove, a contraction section and a jet pipe which are communicated in sequence are further arranged in the main body, the water filtering opening covers the upper part of the water inlet groove, and the tail end of the jet pipe is connected with the top end of the jet cavity; the middle of the tail end of the jet cavity is provided with a splitter, the splitter divides the jet cavity into two channels, and the two channels are respectively connected with the front ends of the two runners.
8. A drip irrigation system, characterized by: the drip irrigation system comprises a drip irrigation pipeline, wherein a plurality of positive pressure feedback jet flow pulse drippers according to any one of claims 1 to 7 are arranged in the drip irrigation pipeline, openings are correspondingly arranged on the drip irrigation pipeline, and each opening can be communicated with a water outlet hole of one positive pressure feedback jet flow pulse dripper.
9. A drip irrigation system, characterized by: the drip irrigation pipe comprises a drip irrigation pipe body, wherein a plurality of positive pressure feedback jet flow pulse drippers according to claim 5 are arranged in the drip irrigation pipe body, openings are correspondingly formed in the drip irrigation pipe body, each opening can be communicated with one water outlet hole of each positive pressure feedback jet flow pulse dripper, the bottom surface of the lower cover plate is pasted on the inner wall of the drip irrigation pipe body, and the openings correspond to the water outlet holes.
10. A drip irrigation system, characterized by: including drip irrigation pipe, be provided with a plurality of malleation feedback efflux pulse water dropper as claimed in claim 7 in the drip irrigation pipe, the last correspondence of drip irrigation pipe is provided with the trompil, every the trompil all can with one the apopore of malleation feedback efflux pulse water dropper communicates, the surface of cylindrical malleation feedback efflux pulse water dropper inlays on drip irrigation pipe's the inner wall, the trompil with the apopore corresponds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220266273.0U CN216415446U (en) | 2022-02-10 | 2022-02-10 | Positive pressure feedback jet pulse water dropper and drip irrigation system |
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| CN202220266273.0U CN216415446U (en) | 2022-02-10 | 2022-02-10 | Positive pressure feedback jet pulse water dropper and drip irrigation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114223507A (en) * | 2022-02-10 | 2022-03-25 | 山东中科先进技术研究院有限公司 | Positive pressure feedback jet pulse dripper and drip irrigation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114223507A (en) * | 2022-02-10 | 2022-03-25 | 山东中科先进技术研究院有限公司 | Positive pressure feedback jet pulse dripper and drip irrigation system |
| CN114223507B (en) * | 2022-02-10 | 2024-11-22 | 山东中科先进技术有限公司 | Positive pressure feedback jet pulse dripper and drip irrigation system |
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Address after: Room 306, building 4, future venture Plaza, hi tech Zone, Jinan City, Shandong Province Patentee after: Shandong Zhongke advanced technology Co.,Ltd. Country or region after: China Address before: Room 306, building 4, future venture Plaza, hi tech Zone, Jinan City, Shandong Province Patentee before: Shandong Zhongke Advanced Technology Research Institute Co.,Ltd. Country or region before: China |
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