Drip irrigation emitter and irrigation system

Abstract

The utility model discloses a drip irrigation emitter and an irrigation system, the drip irrigation emitter comprises a body and a flow channel structure, the flow channel structure is formed on the body, the flow channel structure comprises a water inlet end, a water outlet end, a plurality of first flow channel units and a plurality of second flow channel units; any first flow channel unit comprises oppositely arranged flow guide walls and a flow dividing piece arranged between the two flow guide walls, and the flow dividing piece and the two flow guide walls are arranged at intervals, so that a first sub-flow channel and a second sub-flow channel are formed between the flow dividing piece and the two flow guide walls respectively; the second flow channel unit comprises oppositely arranged drainage walls and a plurality of flow limiting pieces arranged on any drainage wall, the flow limiting pieces on any drainage wall are sequentially arranged at intervals, and the flow limiting pieces on the two oppositely arranged drainage walls are sequentially arranged in a staggered mode, so that flow limiting channels are formed between the two drainage walls and all the flow limiting pieces. The drip irrigation emitter with the structure has a good energy dissipation effect on high-pressure and low-pressure water flow, and the applicability of the drip irrigation emitter can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation, and particularly relates to a drip irrigation emitter and an irrigation system. Background Art

[0002] Drip irrigation is an irrigation technology that can achieve precise irrigation and has an efficient water-saving effect. The emitter is one of the most critical components in the drip irrigation system. Its function is to dissipate the energy of the water flow through the flow channel, so as to achieve the purpose of regulating the water pressure and stabilizing the water flow rate.

[0003] In the prior art, the emitters are mainly divided into maze flow channels and D-shaped flow channels. Among them, the maze flow channel has a higher energy dissipation effect on the water flow in the low-pressure range, and the D-shaped flow channel has a better energy dissipation effect on the water flow in the high-pressure range. This results in that the emitter can only ensure the energy dissipation effect on the water flow in the high-pressure range or the low-pressure range, and cannot meet the energy dissipation effect on the water flow in both the high-pressure range and the low-pressure range. When the water flow is switched between high pressure and low pressure, it is necessary to replace the emitter to make the energy dissipation effect of the emitter on the water flow reach the best, which has great limitations. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the existing cleaning robot replenishes water by manually carrying water sources, resulting in low water replenishment efficiency and overall cleaning efficiency.

[0005] To this end, the utility model provides a drip irrigation emitter, comprising:

[0006] A body;

[0007] A flow channel structure formed on the body. The flow channel structure includes a water inlet end, a water outlet end, a plurality of first flow channel units and second flow channel units. All the first flow channel units are connected end to end in sequence, and at least one first flow channel unit is connected to the water inlet end. One end of the second flow channel unit is connected to one of the first flow channel units and the other end is connected to the water outlet end;

[0008] Any one of the first flow channel units includes oppositely arranged diversion walls and a flow splitting member arranged between the two diversion walls. The flow splitting member is spaced from both the two diversion walls to respectively form a first flow splitting channel and a second flow splitting channel between the flow splitting member and the two diversion walls;

[0009] The second flow channel unit includes oppositely arranged drainage walls and a plurality of flow limiting members arranged on any one of the drainage walls. The flow limiting members on any one of the drainage walls are arranged at intervals in sequence, and the flow limiting members on the two oppositely arranged drainage walls are arranged in a staggered manner in sequence to form a flow limiting channel between the two drainage walls and all the flow limiting members.

[0010] Optionally, for the above-mentioned drip irrigation emitter, one side of the flow dividing member in any of the first flow channel units facing the water inlet end is arranged to be arc-shaped.

[0011] Optionally, for the above-mentioned drip irrigation emitter, one side of the flow dividing member in any of the first flow channel units facing away from the water inlet end is arranged to be conical.

[0012] Optionally, for the above-mentioned drip irrigation emitter, a connecting portion is provided between any two adjacent first flow channel units, both ends of the connecting portion are respectively communicated with one of the first flow channel units, and the water inlet end is communicated with the first flow channel unit through the connecting portion.

[0013] Optionally, for the above-mentioned drip irrigation emitter, the cross-sectional dimension of the connecting portion is smaller than the cross-sectional dimension of the first flow channel unit.

[0014] Optionally, for the above-mentioned drip irrigation emitter, all the connecting portions are coaxially arranged; and / or, all the flow dividing members are coaxially arranged.

[0015] Optionally, for the above-mentioned drip irrigation emitter, both side surfaces of any of the flow limiting members intersect, and a recessed portion is formed on the side surface of the flow limiting member away from the water outlet end.

[0016] Optionally, for the above-mentioned drip irrigation emitter, a communicating portion is provided between the mutually communicated first flow channel unit and the second flow channel unit to communicate the first flow channel unit and the second flow channel unit through the communicating portion.

[0017] Optionally, for the above-mentioned drip irrigation emitter, the water inlet end is a grid-shaped water inlet; and / or, the water outlet end is a rectangular water outlet.

[0018] An irrigation system includes the above-mentioned drip irrigation emitter.

[0019] The technical solution provided by the present utility model has the following advantages:

[0020] 1. The drip irrigation emitter provided by the present utility model, through the flow channel structure formed on the body, the flow channel structure specifically includes a water inlet end, a water outlet end, a plurality of first flow channel units and second flow channel units, so that the flow dividing member can block the water flow and divide the water flow into a first water flow and a second water flow. The first water flow and the second water flow respectively flow through the first flow dividing channel and the second flow dividing channel to the next first flow channel unit. When the first water flow and the second water flow pass through the flow dividing member, the first water flow and the second water flow can converge together through the first flow dividing channel and the second flow dividing channel and re-converge into a water flow. After that, the water flow will flow towards the next first flow channel unit. By the steps of dividing the water flow by the flow dividing member and then merging it, the water flow is dissipated by blocking the water flow and dividing the water flow, and the water flow is further dissipated by the collision and merging of the first water flow and the second water flow. Furthermore, the high-pressure water flow can be dissipated by the first flow channel unit. For the low-pressure water flow, due to the slow flow rate of the low-pressure water flow, the energy dissipation effect of the first flow channel unit on the low-pressure water flow is weak. When the water flow flows from the first flow channel unit into the second flow channel unit, the water flow will flow along the flow limiting channel, and the water flow flowing along the flow limiting channel will collide with each flow limiting member, thereby dissipating the water flow through the collision. And due to the slow flow rate of the low-pressure water flow, the collision effect of the low-pressure water flow with each flow limiting member can reach the best, so that the energy dissipation effect of the second flow channel unit on the low-pressure water flow reaches the best. By integrating the first flow channel unit and the second flow channel unit onto the body, the body can achieve a good energy dissipation effect on both high-pressure water flow and low-pressure water flow, avoiding the need to replace the drip irrigation emitter to adapt to water flows with different pressures when the pressure of the water flow changes, which is beneficial to improving the applicability of the drip irrigation emitter. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic plan view of the drip irrigation emitter provided in the embodiment of the present utility model;

[0023] Figure 2 It is a partial schematic plan view of the first flow channel unit provided in the embodiment of the present utility model;

[0024] Figure 3 It is a partial schematic plan view of the second flow channel unit provided in the embodiment of the present utility model;

[0025] Description of the reference numerals:

[0026] 1 - Body; 11 - Connecting part; 12 - Communicating part;

[0027] 2 - Flow channel structure; 21 - Water inlet end; 22 - Water outlet end; 23 - First flow channel unit; 231 - Diversion wall; 232 - Shunt member; 233 - First shunt channel; 234 - Second shunt channel; 24 - Second flow channel unit; 241 - Drainage wall; 242 - Flow limiting member; 2421 - Depressed part; 243 - Flow limiting channel. Specific implementation mode

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In addition, the technical features involved in different implementation modes of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Embodiment 1

[0033] This embodiment provides a drip irrigation emitter, such as Figures 1 to 3As shown in the figure, it includes a body 1 and a flow channel structure 2. The flow channel structure 2 is formed on the body 1. The flow channel structure 2 includes a water inlet end 21, a water outlet end 22, a number of first flow channel units 23 and second flow channel units 24. All the first flow channel units 23 are connected end to end in sequence, and at least one first flow channel unit 23 is connected to the water inlet end 21. One end of the second flow channel unit 24 is connected to a first flow channel unit 23, and the other end is connected to the water outlet end 22. Any first flow channel unit 23 includes oppositely arranged diversion walls 231 and a flow dividing member 232 disposed between the two diversion walls 231. The flow dividing member 232 is spaced from both diversion walls 231 to respectively form a first flow dividing channel 233 and a second flow dividing channel 234 between the flow dividing member 232 and the two diversion walls 231. The second flow channel unit 24 includes oppositely arranged drainage walls 241 and a number of flow limiting members 242 disposed on any one of the drainage walls 241. The flow limiting members 242 on any one of the drainage walls 241 are arranged at intervals in sequence, and the flow limiting members 242 on the two oppositely arranged drainage walls 241 are arranged in a staggered manner in sequence to form a flow limiting channel 243 between the two drainage walls 241 and all the flow limiting members 242.

[0034] For the drip irrigation emitter with the above structure, through the flow channel structure 2 formed on the body 1, the flow channel structure 2 specifically includes a water inlet end 21, a water outlet end 22, a number of first flow channel units 23 and second flow channel units 24. Among them, the external water flow can flow into the first flow channel unit 23 through the water inlet end 21, flow from the first flow channel unit 23 into the second flow channel unit 24, and finally flow out from the water outlet end 22. All the first flow channel units 23 are connected end to end and communicate with each other, and the first flow channel unit 23 at one end is connected to the water inlet end 21, and the first flow channel unit 23 at the other end is connected to one end of the second flow channel unit 24, so that the water flow flowing into the first flow channel unit 23 through the water inlet end 21 can flow into the second flow channel unit 24. The other end of the second flow channel unit 24 is connected to the water outlet end 22, so that the water flow flowing in the second flow channel unit 24 can flow out to the outside through the water outlet end 22.

[0035] In addition, each first flow channel unit 23 has oppositely arranged diversion walls 231 and a flow dividing member 232 disposed between the two diversion walls 231. The flow dividing member 232 is a flow dividing block in this embodiment. The flow dividing member 232 is spaced apart from the two diversion walls 231, so that a first flow dividing channel 233 and a second flow dividing channel 234 can be formed between the flow dividing member 232 and the two diversion walls 231. When water flows into the first flow channel unit 23 through the water inlet end 21, the flow dividing member 232 can block the water flow and divide the water flow into a first water flow and a second water flow. The first water flow and the second water flow respectively flow to the next first flow channel unit 23 through the first flow dividing channel 233 and the second flow dividing channel 234. When the first water flow and the second water flow pass through the flow dividing member 232, the first water flow and the second water flow can converge together through the first flow dividing channel 233 and the second flow dividing channel 234 to re-converge into a water flow. After that, the water flow will flow to the next first flow channel unit 23. By the steps of dividing the water flow by the flow dividing member 232 and then merging it, the water flow can be energy-dissipated by blocking the water flow and dividing the water flow, and the water flow can be further energy-dissipated by the collision and merging of the first water flow and the second water flow. Thus, the high-pressure water flow can be energy-dissipated by the first flow channel unit 23. For the low-pressure water flow, since the flow rate of the low-pressure water flow is slow, the energy-dissipating effect of the first flow channel unit 23 on the low-pressure water flow is weak.

[0036] However, the second flow channel unit 24 can dissipate the energy of the low-pressure water flow. This is because the second flow channel unit 24 includes oppositely arranged guiding walls 241 and a plurality of flow limiting members 242 disposed on each guiding wall 241. The flow limiting members 242 are flow limiting blocks in this embodiment. The flow limiting members 242 on each guiding wall 241 are arranged at intervals in sequence, and the flow limiting members 242 on the two oppositely arranged guiding walls 241 are arranged in a staggered manner in sequence. Thus, a flow limiting channel 243 is formed between the oppositely arranged guiding walls 241 and all the flow limiting members 242. When the water flow flows from the first flow channel unit 23 into the second flow channel unit 24, the water flow will flow along the flow limiting channel 243, and the water flow flowing along the flow limiting channel 243 will collide with each flow limiting member 242. Thus, the water flow can be energy-dissipated by the collision. Since the flow rate of the low-pressure water flow is slow, the collision effect between the low-pressure water flow and each flow limiting member 242 can reach the best, so that the energy-dissipating effect of the second flow channel unit 24 on the low-pressure water flow reaches the best.

[0037] Therefore, by integrating the first flow channel unit 23 and the second flow channel unit 24 onto the main body 1, the main body 1 can achieve a good energy-dissipating effect on both high-pressure water flow and low-pressure water flow, avoiding the need to replace the drip irrigation emitter to adapt to water flows with different pressures when the pressure of the water flow changes, which is beneficial to improving the applicability of the drip irrigation emitter.

[0038] The drip irrigation emitter provided in this embodiment, such asFigure 1 and Figure 2 As shown in Figure 2 , one side of the flow splitter 232 in any first flow channel unit 23 facing the water inlet end 21 is arranged in an arc shape.

[0039] For the drip irrigation emitter with the above structure, by arranging one side of the flow splitter 232 in each first flow channel unit 23 facing the water inlet end 21 in an arc shape, when the water flow on the water inlet end 21 side flows into the first flow channel unit 23, the water flow will impact the arc-shaped end face of the flow splitter 232, and then the water flow will be split along the arc-shaped end face of the flow splitter 232. The arc-shaped end face can play a guiding role in the first water flow and the second water flow after splitting. At the same time, the first water flow and the second water flow flowing along the arc-shaped end face are faster than the first water flow and the second water flow far from the arc-shaped end face, so a vortex is formed between the first water flow and the second water flow with fast flow rate and the first water flow and the second water flow with slow flow rate. The formation of this vortex can also dissipate the energy of the water flow. In addition, since the first water flow and the second water flow continuously scour the diversion part and other side walls of the first flow channel unit 23, sediment accumulation in the first flow channel unit 23 can be avoided.

[0040] The drip irrigation emitter provided in this embodiment, as Figure 1 and Figure 2 shown, one side of the flow splitter 232 in any first flow channel unit 23 facing away from the water inlet end 21 is arranged in a conical shape.

[0041] For the drip irrigation emitter with the above structure, by arranging one side of the flow splitter 232 in each first flow channel unit 23 facing away from the water inlet end 21 in a conical shape, when the first water flow and the second water flow pass through the arc-shaped end face of the flow splitter 232, the conical end face of the flow splitter 232 can respectively guide the first water flow and the second water flow, so that the first water flow and the second water flow can vertically impact, and then the energy dissipation effect on the water flow can be improved.

[0042] The drip irrigation emitter provided in this embodiment, as Figure 1 and Figure 2 shown, a connecting part 11 is arranged between any two adjacent first flow channel units 23. Both ends of the connecting part 11 are respectively communicated with a first flow channel unit 23, and the water inlet end 21 is communicated with the first flow channel unit 23 through the connecting part 11.

[0043] The drip irrigation emitter with the above structure connects adjacent two first flow channel units 23 through a connecting part 11 arranged between any two adjacent first flow channel units 23. In this embodiment, the connecting part 11 is a connecting pipe. The two ends of the connecting part 11 are respectively communicated with a first flow channel unit 23, so as to connect adjacent two first flow channel units 23, and enable water flow to circulate between all the first flow channel units 23. In addition, the water inlet end 21 and the first flow channel unit 23 are also connected through the connecting part 11, so that the water flow flowing in from the water inlet end 21 can flow into the first flow channel unit 23 through the connecting part 11.

[0044] The drip irrigation emitter provided in this embodiment, as Figure 1 and Figure 2 shown, the cross-sectional dimension of the connecting part 11 is smaller than that of the first flow channel unit 23.

[0045] For the drip irrigation emitter with the above structure, by setting the cross-sectional dimension of the connecting part 11 to be smaller than that of the first flow channel unit 23, when the water flow in the first flow channel unit 23 flows into the next first flow channel unit 23 through the connecting part 11, since the cross-sectional dimension of the connecting part 11 is smaller than that of the first flow channel unit 23, the passing amount of the water flow is reduced, thereby playing a role in energy dissipation of the water flow.

[0046] The drip irrigation emitter provided in this embodiment, as Figure 1 and Figure 2 shown, all the connecting parts 11 are coaxially arranged; and / or, all the flow dividing parts 232 are coaxially arranged.

[0047] For the drip irrigation emitter with the above structure, by setting all the connecting parts 11 to be coaxially arranged and setting all the flow dividing parts 232 to be coaxially arranged, the flow path of the water flow in each first flow channel unit 23 is ensured to be consistent, so that the energy dissipation effect of each first flow channel unit 23 on the water flow can be generally kept consistent. In addition, the coaxially arranged connecting parts 11 and flow dividing parts 232 can also facilitate the factory to form the first flow channel unit 23 on the main body 1, which is beneficial to improving the forming efficiency of the first flow channel unit 23.

[0048] The drip irrigation emitter provided in this embodiment, as Figure 1 and Figure 3 shown, the two side surfaces of any flow limiting part 242 intersect, and a recessed part 2421 is formed on the side surface of the flow limiting part 242 away from the water outlet end 22.

[0049] For the drip irrigation emitter with the above structure, by setting the two side surfaces of the flow restrictor 242 to intersect and providing the recess 2421 on the side surface of the flow restrictor 242 away from the water outlet end 22, the recess 2421 is a recessed groove in this embodiment. By setting the two side surfaces of the flow restrictor 242 to intersect, both side surfaces of the flow restrictor 242 are inclined surfaces. When water flows into the flow passage 243, the side surface of the flow restrictor 242 away from the water outlet end 22 can guide the water flow, and the recess 2421 can provide an accelerating effect on the water flow flowing along the recess 2421, so that the water flow flowing along the recess 2421 has a faster flow rate than the water flow flowing away from the recess 2421. Then, a vortex is formed between the water flow flowing along the recess 2421 and the water flow flowing away from the recess 2421, and this vortex can provide an energy dissipation effect on the water flow.

[0050] The drip irrigation emitter provided in this embodiment, as Figure 1 shown, a connecting part 12 is provided between the mutually connected first flow passage unit 23 and the second flow passage unit 24 to connect the first flow passage unit 23 and the second flow passage unit 24 through the connecting part 12.

[0051] For the drip irrigation emitter with the above structure, through the connecting part 12 provided between the first flow passage unit 23 and the second flow passage unit 24, the connecting part 12 is a connecting pipe in this embodiment. The connecting part 12 can connect the first flow passage unit 23 and the second flow passage unit 24, so that the water flow flowing in the first flow passage unit 23 can flow into the second flow passage unit 24 and flow towards the water outlet end 22.

[0052] The drip irrigation emitter provided in this embodiment, as Figure 1 shown, the water inlet end 21 is a grid-shaped water inlet; and / or, the water outlet end 22 is a rectangular water outlet.

[0053] For the drip irrigation emitter with the above structure, by setting the water inlet end 21 as a grid-shaped water inlet and setting the water outlet end 22 as a rectangular water outlet, larger impurities in the water flow flowing into the water inlet end 21 can be filtered through the grid-shaped water inlet, and the water flow in the flow passage unit can be discharged to the outside through the rectangular water outlet. Among them, the value range of the size of the water inlet is 0.45 ± 0.5 mm, the value range of the length of the water outlet is 6 ± 0.5 mm, and the value range of the width is 4.8 ± 0.5 mm.

[0054] Specifically, the length of the first flow channel unit 23 ranges from 1.6 ± 0.5 mm, the length of the connecting portion 11 ranges from 0.2 ± 0.5 mm, the width of the connecting portion 11 ranges from 0.5 ± 0.5 mm, the length of the flow dividing member 232 ranges from 0.7 ± 0.5 mm, the width of the flow dividing member 232 ranges from 1.2 ± 0.5 mm, the included angle of the tapered end face of the flow dividing member 232 is 150°, the distance between the water inlet end 21 and the flow dividing member 232 ranges from 0.45 ± 0.5 mm, and the distance between the flow dividing member 232 and the connecting portion 11 ranges from 0.45 ± 0.5 mm.

[0055] The end of the flow limiting member 242 in the second flow channel unit 24 is set to be arc-shaped, and the radius of the arc-shaped end ranges from 0.1 ± 0.5 mm, the distance between two adjacent flow limiting members 242 ranges from 1.2 ± 0.5 mm, the height of the flow limiting member excluding the arc-shaped end ranges from 0.9 ± 0.5 mm, the radius of the recess 2421 in the second flow channel unit 24 ranges from 0.4 ± 0.5 mm, and the width of the flow limiting channel ranges from 0.5 ± 0.5 mm.

[0056] The drip irrigation emitter provided by the present utility model, through the flow channel structure 2 formed on the body 1, the flow channel structure 2 specifically includes a water inlet end 21, a water outlet end 22, a plurality of first flow channel units 23 and a second flow channel unit 24, so that the flow dividing member 232 can block the water flow and divide the water flow into a first water flow and a second water flow. The first water flow and the second water flow respectively flow to the next first flow channel unit 23 through the first flow dividing channel 233 and the second flow dividing channel 234. When the first water flow and the second water flow pass through the flow dividing member 232, the first water flow and the second water flow can converge together through the first flow dividing channel 233 and the second flow dividing channel 234 and re-converge into a water flow. After that, the water flow will flow to the next first flow channel unit 23. By the steps of dividing the water flow by the flow dividing member 232 and then merging it, the water flow is energy-dissipated by blocking the water flow and dividing the water flow, and the water flow is further energy-dissipated by the collision and merging of the first water flow and the second water flow. Furthermore, the high-pressure water flow can be energy-dissipated by the first flow channel unit 23. For the low-pressure water flow, due to the slow flow rate of the low-pressure water flow, the energy-dissipating effect of the first flow channel unit 23 on the low-pressure water flow is weak. When the water flow flows from the first flow channel unit 23 into the second flow channel unit 24, the water flow will flow along the flow limiting channel 243, and the water flow flowing along the flow limiting channel 243 will collide with each flow limiting member 242, thereby energy-dissipating the water flow through the collision. And due to the slow flow rate of the low-pressure water flow, the collision effect of the low-pressure water flow with each flow limiting member 242 can reach the best, so that the energy-dissipating effect of the second flow channel unit 24 on the low-pressure water flow reaches the best. By integrating the first flow channel unit 23 and the second flow channel unit 24 onto the body 1, the body 1 can have a good energy-dissipating effect on both high-pressure water flow and low-pressure water flow, avoiding the need to replace the drip irrigation emitter to adapt to water flows with different pressures when the pressure of the water flow changes, which is beneficial to improving the applicability of the drip irrigation emitter.

[0057] Embodiment 2

[0058] This embodiment provides an irrigation system, as Figures 1 to 3As shown, it includes the above-mentioned drip irrigation emitter. For the irrigation system with the above structure, through the flow channel structure 2 formed on the body 1, the flow channel structure 2 specifically includes a water inlet end 21, a water outlet end 22, a number of first flow channel units 23 and second flow channel units 24, so that the flow divider 232 can block the water flow and divide the water flow into a first water flow and a second water flow. The first water flow and the second water flow respectively flow through the first flow divider channel 233 and the second flow divider channel 234 to the next first flow channel unit 23. When the first water flow and the second water flow pass through the flow divider 232, the first water flow and the second water flow can converge together through the first flow divider channel 233 and the second flow divider channel 234 to re-converge into a water flow. After that, the water flow will flow towards the next first flow channel unit 23. By the step of diverting and then merging the water flow through the flow divider 232, the water flow is energy-dissipated by blocking the water flow and diverting the water flow, and the water flow is further energy-dissipated by the collision and merging of the first water flow and the second water flow. Furthermore, the high-pressure water flow can be energy-dissipated through the first flow channel unit 23. For the low-pressure water flow, due to the slow flow rate of the low-pressure water flow, the energy-dissipating effect of the first flow channel unit 23 on the low-pressure water flow is weak. When the water flow flows from the first flow channel unit 23 into the second flow channel unit 24, the water flow will flow along the flow-limiting channel 243, and the water flow flowing along the flow-limiting channel 243 will collide with each flow-limiting member 242. Furthermore, the water flow is energy-dissipated through this collision. And due to the slow flow rate of the low-pressure water flow, the collision effect of the low-pressure water flow with each flow-limiting member 242 can reach the best, so that the energy-dissipating effect of the second flow channel unit 24 on the low-pressure water flow reaches the best. By integrating the first flow channel unit 23 and the second flow channel unit 24 onto the body 1, the body 1 can achieve a good energy-dissipating effect on both high-pressure water flow and low-pressure water flow, avoiding the need to replace the drip irrigation emitter to adapt to water flows with different pressures when the pressure of the water flow changes, which is beneficial to improving the applicability of the drip irrigation emitter.

[0059] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.

Claims

1. A drip irrigation device, characterized in that: include: ontology(1); A flow channel structure (2) is formed on the body (1), the flow channel structure (2) comprising a water inlet end (21), a water outlet end (22), a plurality of first flow channel units (23) and a second flow channel unit (24), all of the first flow channel units (23) are connected end to end in sequence, and at least one of the first flow channel units (23) is connected to the water inlet end (21), one end of the second flow channel unit (24) is connected to one of the first flow channel units (23), and the other end is connected to the water outlet end (22); Any of the first flow channel units (23) comprises flow guide walls (231) arranged opposite to each other and a flow divider (232) arranged between the two flow guide walls (231); the flow divider (232) and the two flow guide walls (231) are arranged at intervals to form a first flow divider (233) and a second flow divider (234) between the flow divider (232) and the two flow guide walls (231), respectively; The second flow channel unit (24) comprises oppositely arranged flow guide walls (241) and a plurality of flow limiting members (242) arranged on any of the flow guide walls (241), the flow limiting members (242) on any of the flow guide walls (241) being arranged in sequence and spaced apart, and the flow limiting members (242) on the two oppositely arranged flow guide walls (241) being arranged in a staggered arrangement in sequence, so as to form a flow limiting channel (243) between the two flow guide walls (241) and all of the flow limiting members (242).

2. The drip irrigation emitter according to claim 1, characterized in that: The flow dividing member (232) in any one of the first flow channel units (23) is arranged in an arc shape on a side facing the water inlet end (21).

3. The drip irrigation emitter according to claim 2, characterized in that: The side of the flow dividing member (232) in any one of the first flow channel units (23) facing away from the water inlet end (21) is configured to be conical.

4. The drip irrigation emitter according to any one of claims 1 to 3, characterized in that: A connecting portion (11) is provided between any two adjacent first flow channel units (23), and both ends of the connecting portion (11) are respectively connected to one of the first flow channel units (23), and the water inlet end (21) is connected to the first flow channel unit (23) through the connecting portion (11).

5. The drip irrigation emitter according to claim 4, characterized in that: The cross-sectional dimension of the connecting portion (11) is smaller than the cross-sectional dimension of the first flow channel unit (23).

6. The drip irrigation emitter according to claim 5, characterized in that: All of the connecting parts (11) are coaxially arranged; and / or all of the flow dividing members (232) are coaxially arranged.

7. The drip irrigation emitter according to claim 6, characterized in that: The two side surfaces of any one of the flow limiting components (242) are arranged to intersect with each other, and a recessed portion (2421) is provided on the side of the flow limiting component (242) away from the water outlet end (22).

8. The drip irrigation emitter according to claim 7, characterized in that: A communication portion (12) is provided between the first flow channel unit (23) and the second flow channel unit (24) which are connected to each other, so that the first flow channel unit (23) and the second flow channel unit (24) are connected through the communication portion (12).

9. The drip irrigation emitter according to claim 1, characterized in that: The water inlet end (21) is a grid-shaped water inlet; and / or the water outlet end (22) is a rectangular water outlet.

10. A watering system, characterized in that: The drip irrigation emitter comprises the drip irrigation emitter according to any one of claims 1 to 9.

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