Double-layer flow channel backwashing anti-blocking irrigation emitter

Abstract

The invention relates to a double-layer flow channel backwashing anti-blocking irrigation emitter which comprises a cover body, a base and an elastic body. A water inlet cavity and a water outlet are formed in the two ends of the cover body, and an upper runner water inlet, an upper labyrinth runner and an upper runner water outlet which are communicated are sequentially formed between the water inlet cavity and the water outlet; a filtering window and a water outlet cavity are arranged at the two ends of the base, and a lower flow channel water inlet, a lower labyrinth flow channel and a lower flow channel water outlet which are communicated with one another are sequentially arranged between the filtering window and the water outlet cavity; the filtering window and the water inlet cavity are communicated to form a water inlet channel, and the water outlet and the water outlet cavity are communicated to form a water outlet channel. The anti-blocking irrigation emitter is composed of the upper-layer flow channel and the lower-layer flow channel, when the lower flow channel is blocked, the upper flow channel is opened through deformation of the elastic body, the blocked lower flow channel is backwashed, and the anti-blocking performance of the irrigation emitter is remarkably improved. When the double-layer flow channel irrigates water at the same time, a variable irrigation emitter is formed, water requirements of crops in different growth periods are met, and the variable irrigation emitter has the advantages of wide application range, high anti-blocking capacity, variable irrigation flow and the like and is beneficial to planting of the crops in different growth periods.

Description

Technical Field

[0001] The invention belongs to the technical field of water-saving irrigation, and particularly relates to a double-channel backwashing anti-clogging water emitter. Background Art

[0002] Drip irrigation is currently the micro-irrigation method with the highest water-saving efficiency. As the core and key part of the micro-irrigation system, the water emitter directly affects the design, service life, anti-clogging performance and crop growth of the micro-irrigation system. Currently, most water emitters have a single maze channel. In actual crop irrigation, the water demand of crops varies during different growth periods, resulting in serious water shortage for crop irrigation. Moreover, the quality of irrigation water is poor, which easily causes clogging of the water emitter and has a great impact on plant growth. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the invention provides a double-channel backwashing anti-clogging water emitter with a simple structure and excellent anti-clogging performance.

[0004] To solve the above technical problems, the technical solution adopted by the invention is as follows:

[0005] A double-channel backwashing anti-clogging water emitter includes a water emitter body composed of a cover body and a base. An elastic body is arranged inside the water emitter body. The two ends of the cover body are provided with a water inlet cavity and a water outlet. Between the water inlet cavity and the water outlet, a water inlet of the upper channel, an upper maze channel, and a water outlet of the upper channel are sequentially arranged in communication; the two ends of the base are provided with a filter window and a water outlet cavity. Between the filter window and the water outlet cavity, a water inlet of the lower channel, a lower maze channel, and a water outlet of the lower channel are sequentially arranged in communication; the filter window is communicated with the water inlet cavity to form a water inlet channel. The upper maze channel and the lower maze channel are respectively communicated with the water inlet channel through the water inlet of the upper channel and the water inlet of the lower channel; the water outlet is communicated with the water outlet cavity to form a water outlet channel. The upper maze channel and the lower maze channel are respectively communicated with the water outlet channel through the water outlet of the upper channel and the water outlet of the lower channel; the elastic body is placed in the water inlet cavity of the cover body.

[0006] In the above double-channel backwashing anti-clogging water emitter, the cover body and the base are respectively provided with positioning grids that cooperate with each other.

[0007] In the above double-channel backwashing anti-clogging water emitter, the positioning grids are respectively arranged in the middle of the outer surfaces of the cover body and the base with maze channels.

[0008] In the above double-channel backwashing anti-clogging water emitter, the cover body and the base are respectively provided with cooperating male and female snap fasteners to form the water emitter body.

[0009] In the above double-channel backwashing anti-clogging water emitter, the cover body and the base form the water emitter body by an adhesive bonding method.

[0010] For the above-mentioned double-layer channel backwashing anti-clogging water emitter, the filter window and the water inlet cavity are correspondingly arranged on the same side of the water emitter body, and the elastic body is placed between the water inlet cavity and the filter window.

[0011] For the above-mentioned double-layer channel backwashing anti-clogging water emitter, the contact surfaces of the cover body and the base are closely attached.

[0012] For the above-mentioned double-layer channel backwashing anti-clogging water emitter, the upper labyrinth channel of the cover body and the lower labyrinth channel of the base are respectively located on both sides of the positioning partition.

[0013] Beneficial effects:

[0014] The water emitter of the present invention is composed of upper and lower layers of interconnected channels and an elastic body. When the lower layer of the channel is blocked, the elastic body deforms, and the upper water inlet communicating with the water inlet cavity opens. The water emitter irrigates through the upper layer of the channel, backwashing the blocked lower layer of the channel, and significantly improving the anti-clogging performance of the water emitter. When the double-layer channels irrigate simultaneously, a variable water emitter is formed, meeting the water requirements of crops at different growth stages, having the advantages of a wide application range, strong anti-clogging ability, variable irrigation flow rate, etc., and being beneficial to the cultivation of crops at different growth stages. Description of the drawings

[0015] Figure 1 Schematic diagram of the water emitter combination of Embodiment 1 of the present invention

[0016] Figure 2 A-A cross-sectional view of the water emitter combination of Embodiment 1 of the present invention

[0017] Figure 3 B-B cross-sectional view of the water emitter combination of Embodiment 1 of the present invention

[0018] Figure 4 C-C cross-sectional view of the water emitter combination of Embodiment 1 of the present invention

[0019] Figure 5 Three-dimensional schematic diagram of the cover body of Embodiment 1 of the present invention

[0020] Figure 6 Three-dimensional schematic diagram of the base of Embodiment 1 of the present invention

[0021] Figure 7 Planar schematic diagram of the cover body of Embodiment 1 of the present invention

[0022] Figure 8 A-A cross-sectional view of the cover body of Embodiment 1 of the present invention

[0023] Figure 9 B-B cross-sectional view of the cover body of Embodiment 1 of the present invention

[0024] Figure 10Cross-sectional view of the cover C-C of Embodiment 1 of the present invention

[0025] Figure 11 Schematic plan view of the base of Embodiment 1 of the present invention

[0026] Figure 12 Cross-sectional view of the base A-A of Embodiment 1 of the present invention

[0027] Figure 13 Cross-sectional view of the base B-B of Embodiment 1 of the present invention

[0028] Figure 14 Cross-sectional view of the base C-C of Embodiment 1 of the present invention

[0029] Figure 15 Schematic view of the water emitter assembly of Embodiment 2 of the present invention

[0030] Figure 16 Cross-sectional view of the water emitter assembly A-A of Embodiment 2 of the present invention

[0031] Figure 17 Cross-sectional view of the water emitter assembly B-B of Embodiment 2 of the present invention

[0032] Figure 18 Cross-sectional view of the water emitter assembly C-C of Embodiment 2 of the present invention

[0033] Figure 19 Schematic plan view of the cover of Embodiment 2 of the present invention

[0034] Figure 20 Cross-sectional view of the cover A-A of Embodiment 2 of the present invention

[0035] Figure 21 Cross-sectional view of the cover B-B of Embodiment 2 of the present invention

[0036] Figure 22 Cross-sectional view of the cover C-C of Embodiment 2 of the present invention

[0037] Figure 23 Schematic plan view of the base of Embodiment 2 of the present invention

[0038] Figure 24 Cross-sectional view of the base A-A of Embodiment 2 of the present invention

[0039] Figure 25 Cross-sectional view of the base B-B of Embodiment 2 of the present invention

[0040] Figure 26 Cross-sectional view of the base C-C of Embodiment 2 of the present invention

[0041] Figure 27 Application diagram of the water emitter and pipe belt combination of the present invention

[0042] In the figure: 1. water outlet cavity; 2. downstream channel water outlet; 3. male positioning baffle; 4. lower labyrinth channel; 5. downstream channel water inlet; 6. filter window; 7. female snap; 8. male snap; 9. elastomer; 10. water inlet cavity; 11. upstream channel water inlet; 12. upper labyrinth channel; 13. female positioning baffle; 14. upstream channel water outlet; 15. water outlet; 16. cover body I; 17. base I; 18. cover body II; 19. base II Detailed implementation mode

[0043] To better explain the present invention and enable those skilled in the art to accurately understand the technical principle, structure, usage method, effects, etc. of the present technology, the following will be explained in detail by way of examples.

[0044] Example 1

[0045] Refer to Figures 1 - 14 , this example discloses a double-channel backwashing anti-blocking irrigation device, which includes an irrigation device body composed of a cover body I 16 and a base I 17. An elastomer 9 is arranged inside the irrigation device body, and the cover body I 16 is adhered to the irrigation pipe or irrigation belt by an inlay method.

[0046] Both ends of the cover body I 16 are provided with a water inlet cavity 10 and a water outlet 15. Between the water inlet cavity 10 and the water outlet 15, there are successively arranged and connected an upstream channel water inlet 11, an upper labyrinth channel 12, and an upstream channel water outlet 14; both ends of the base I 17 are provided with a filter window 6 and a water outlet cavity 1. Between the filter window 6 and the water outlet cavity 1, there are successively arranged and connected a downstream channel water inlet 5, a lower labyrinth channel 4, and a downstream channel water outlet 2. The filter window 6 is located on the same side as the water inlet cavity 10, and the filter window 6 and the water inlet cavity 10 are connected to form a water inlet channel. The upper labyrinth channel 12 and the lower labyrinth channel 4 are respectively connected to the water inlet channel through the upstream channel water inlet 11 and the downstream channel water inlet 5; the water outlet 15 is connected to the water outlet cavity 1 to form a water outlet channel. The upper labyrinth channel 12 and the lower labyrinth channel 4 are respectively connected to the water outlet channel through the upstream channel water outlet 14 and the downstream channel water outlet 2. The elastomer 9 is placed inside the water inlet cavity 10, and the filter window 6 seals the elastomer 9 to prevent it from falling off.

[0047] The cover body Ⅰ16 is provided with male snap fasteners 8 and female positioning partitions 13, and the base body Ⅰ17 is provided with female snap fasteners 7 and male positioning partitions 3. The female positioning partition 13 and the male positioning partition 3 are respectively arranged in the middle of the outer surfaces of the cover body Ⅰ16 and the base body Ⅰ17 with labyrinth flow channels, and the female positioning partition 13 and the male positioning partition 3 cooperate with each other. The upper labyrinth flow channel 12 of the cover body Ⅰ16 and the lower labyrinth flow channel 4 of the base body Ⅰ17 are respectively located on both sides of the positioning partition. The contact surfaces of the cover body Ⅰ16 and the base body Ⅰ17 are closely attached to prevent the water flow in the upper and lower labyrinth flow channels from mixing. When the cover body Ⅰ16 and the base body Ⅰ17 are assembled, the directions of the cover body and the base body are positioned through the male and female positioning partitions to ensure the assembly accuracy of the water injector. At the same time, the male and female positioning partitions are in the middle of the upper and lower labyrinth flow channels to ensure the sealing between the internal flow channels of the water injector and prevent the water flow between the two labyrinth flow channels from flowing to each other; the cover body Ⅰ16 and the base body Ⅰ17 are tightly combined with each other through the male snap fastener 8 and the female snap fastener 7 to form a water injector.

[0048] After the water injectors are combined, the filter window 6 communicates with the water inlet cavity 10 to form a water inlet channel, which communicates with the water inlet openings of the upper and lower labyrinth flow channels, and the water flow enters the water inlet openings of the upper and lower flow channels through the water inlet channel; the water outlet 15 and the water outlet cavity 1 communicate to form a water outlet channel, and both the upper and lower labyrinth flow channels communicate with the water outlet channel through the water outlet openings of the upper and lower flow channels.

[0049] Embodiment 2

[0050] Refer to Figures 15 - 26 , this embodiment discloses a double-layer flow channel backwashing anti-blocking water injector, which includes a water injector body composed of a cover body Ⅱ18 and a base body Ⅱ19. An elastomer 9 is arranged in the water injector body, and the cover body Ⅱ18 is adhered to the irrigation pipe or irrigation belt by an inlaying method. The difference between this embodiment and Embodiment 1 is that the cover body Ⅱ18 is adhered to the outer end of the base body Ⅱ19 by an adhesive method to form a water injector body.

[0051] Both ends of the cover body Ⅱ18 are provided with a water inlet cavity 10 and a water outlet 15. Between the water inlet cavity 10 and the water outlet 15, there are successively arranged a communicating upper flow channel water inlet 11, an upper labyrinth flow channel 12, and an upper flow channel water outlet 14; both ends of the base body Ⅱ19 are provided with a filter window 6 and a water outlet cavity 1. Between the filter window 6 and the water outlet cavity 1, there are successively arranged a communicating lower flow channel water inlet 5, a lower labyrinth flow channel 4, and a lower flow channel water outlet 2. The filter window 6 is located on one side of the water inlet cavity 10, the elastomer 9 is placed in the water inlet cavity 10, and the filter window 6 seals the elastomer 9 to prevent it from falling off; the filter window 6 filters the impurities in the water in the pipe or belt, the water inlet cavity 10 communicates with the water inlet openings of the upper and lower labyrinth flow channels, and the water flow enters the upper and lower labyrinth flow channels through the water inlet cavity 10. The water outlet 15 and the water outlet cavity 1 communicate to form a water outlet channel.

[0052] A male positioning partition 3 is provided in the middle of the cover body II 18, and a female positioning partition 10 is provided in the middle of the base II 19. The female positioning partition 10 and the male positioning partition 3 are arranged in cooperation. During assembly, the directions of the cover body and the base are positioned through the male and female positioning partitions to ensure the assembly accuracy of the water emitter. At the same time, the male and female positioning partitions are in the middle of the upper and lower maze channels, ensuring the sealing between the internal channels of the water emitter and preventing the water flow between the two maze channels from flowing to each other.

[0053] The water outlet 15 and the water outlet cavity 1 are connected to form a water outlet channel. The cover body II 18 and the base II 19 are tightly combined with each other through the male buckle 8 and the female buckle 7 to form the water emitter body. The upper maze channel 12 and the lower maze channel 4 are both connected to the water outlet channel.

[0054] The cover body II 18 is provided with a male buckle, and the base II 19 is provided with a female buckle. The male buckle and the female buckle cooperate with each other, and the cover body II 18 and the base II 19 are tightly combined through the male and female buckles to form a water emitter.

[0055] Refer to Figure 27 After the present invention is bonded to the irrigation pipe or belt, small holes are drilled in the irrigation pipe or belt, and the small holes are connected to the water outlet channel, and water flows out through the small holes in the irrigation pipe or belt.

[0056] Working principle:

[0057] The water emitter is bonded to the pipe belt through the inlaid cover body. The water flow in the pipe belt passes through the filter window of the base and enters the water inlet cavity. Since the elastomer seals the water inlet of the upper flow channel, the water flow enters the lower maze channel through the water inlet of the lower flow channel, and then enters the water outlet channel through the water outlet of the lower flow channel. By bonding the water emitter to the pipe belt, water flows out through the holes punched at the water outlet channel; when the lower maze channel is blocked, the water pressure acts on the elastomer in the water inlet cavity to cause deformation, and the water inlet of the upper flow channel is opened. The water flow enters the upper maze channel through the water inlet of the upper flow channel and flows out through the water outlet of the upper flow channel and enters the water outlet channel. By bonding the water emitter to the pipe belt, water flows out through the holes punched at the water outlet channel; at the same time, the upper and lower maze channels are connected at the water outlet channel, and the water flow can reversely flush the blockage in the lower maze channel, enhancing the anti-blocking ability of the water emitter; when the water pressure increases, the elastomer in the water inlet cavity is deformed, and water can also flow simultaneously up and down, increasing the water flow of the water emitter to form a variable water emitter; which is beneficial to the water demand requirements of crops at different growth stages.

[0058] The present invention consists of upper and lower layers of interconnected channels and an elastomer to form a water emitter. When the lower maze channel is blocked, the elastomer deforms, and the water inlet of the upper flow channel connected to the water inlet cavity is opened. The water emitter irrigates through the upper maze channel and flushes the blocked lower maze channel reversely, and the anti-blocking performance of the water emitter is significantly improved. When the double-layer maze channels irrigate simultaneously, a variable water emitter is formed, meeting the water demand of crops at different growth stages, having the advantages of wide application range, strong anti-blocking ability, variable irrigation water flow, etc., and being beneficial to the planting of crops at different growth stages.

[0059] The above are only embodiments of the present invention, and do not limit the scope of the patent for the present invention. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the scope of protection of the patent for the present invention.

Claims

1. A double-layer flow channel backwashing anti-blocking irrigation device, characterized in that, An irrigation device body composed of a cover body and a base, an elastomer is arranged inside the irrigation device body, water inlet cavities and water outlets are arranged at both ends of the cover body, and a communicating upstream channel water inlet, an upper labyrinth channel, and an upstream channel water outlet are sequentially arranged between the water inlet cavities and the water outlets; filtering windows and a water outlet cavity are arranged at both ends of the base, and a communicating downstream channel water inlet, a lower labyrinth channel, and a downstream channel water outlet are sequentially arranged between the filtering windows and the water outlet cavity; the filtering windows are communicated with the water inlet cavities to form a water inlet channel, and the upper labyrinth channel and the lower labyrinth channel are respectively communicated with the water inlet channel through the upstream channel water inlet and the downstream channel water inlet; the water outlets are communicated with the water outlet cavity to form a water outlet channel, and the upper labyrinth channel and the lower labyrinth channel are respectively communicated with the water outlet channel through the upstream channel water outlet and the downstream channel water outlet; the elastomer is placed in the water inlet cavity of the cover body.

2. The double-layer flow channel backwashing anti-blocking irrigation device according to claim 1, wherein, The cover body and the base are respectively provided with positioning partitions that cooperate with each other.

3. The double-layer flow channel backwashing anti-blocking irrigation emitter according to claim 2, characterized in that, The positioning partitions are respectively arranged in the middle of the outer surfaces of the cover body and the base where the labyrinth channels are located.

4. A double-layer flow channel backwashing anti-clogging irrigation emitter according to claim 1, characterized in that, The cover body and the base are respectively provided with cooperating male and female fasteners to form the irrigation device body.

5. The double-layer flow channel backwashing anti-blocking irrigation device according to claim 1, characterized in that, The cover body and the base form the irrigation device body by an adhesive bonding method.

6. The double-layer flow channel backwashing anti-blocking irrigation device according to claim 1, characterized in that, The filtering windows and the water inlet cavities are correspondingly arranged on the same side of the irrigation device body, and the elastomer is placed between the water inlet cavity and the filtering window.

7. The double-layer flow channel backwashing anti-blocking irrigation emitter according to claim 1, characterized in that, The contact surfaces of the cover body and the base are closely fitted.

8. A double-layer flow channel backwashing anti-blocking irrigation device according to claim 1, characterized in that, The upper labyrinth channel of the cover body and the lower labyrinth channel of the base are respectively located on both sides of the positioning partition.

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