A turbulent embedded compensation dripper

Abstract

A turbulent embedded compensating dripper includes a fluid part, a bottom shell part and a compensating film arranged between the fluid part and the bottom shell part; the fluid part is sleeved in the bottom shell part; the fluid part includes a fluid shell, a water inlet part and a water outlet part; the water inlet part and the water outlet part are both arranged on the fluid shell; the fluid shell includes a square ring and a partition plate; the partition plate is arranged at the center of the inner wall of the square ring, symmetrically dividing the square ring into an upper cavity and a lower cavity; the water inlet part is arranged in the upper cavity; the water outlet part is arranged in the lower cavity. The present invention ensures that the dripping on the irrigation pipeline is uniform during the drip irrigation process, ensures that all crops can be drip irrigated, and avoids the occurrence of excessive or too small irrigation drips.

Description

Technical Field

[0001] The invention relates to a compensating dripper, in particular to a compensating dripper capable of helping an irrigation pipe to discharge water evenly, and belongs to the technical field of agricultural water-saving irrigation. Background Art

[0002] With the increasing scarcity of water resources, it is increasingly important to popularize the concept of water conservation in the agricultural field. In the agricultural field, irrigation technology consumes the most water, and surface irrigation is the dominant irrigation technology in the world today. The water-saving technology of agricultural irrigation is becoming more and more mature. Among them, drip irrigation technology is the most water-saving irrigation technology in agricultural irrigation today, and the dripper is the core technology of drip irrigation technology. It can turn water flow into droplets to irrigate crops, thereby minimizing the use of water while meeting the water demand of crops. There are two main types of drippers on the market today: pressure-compensated drippers and non-pressure-compensated drippers. Among them, the pressure-compensated dripper is the dripper with the highest technological content and the most technically difficult drip irrigation equipment. It uses the water flow pressure to make the elastic film change the outlet cross-section, adjust the flow rate, and make the water output stable. The drip irrigation pipe has extremely high water flow uniformity and good flow index, and has hydraulic performance that no other drip irrigation pipe can match. However, during the drip irrigation process, the pressure compensation of this dripper is achieved by the deformation of the internal elastic film. Once the elastic film is deformed, if the elastic film is not clamped tightly around, the compensation effect will be affected, which will cause uneven water discharge from the drippers on the entire irrigation line, affecting the growth of crops or even killing them. In order to avoid this situation, a compensating dripper is needed, which is required to maintain stable outlet pressure and dripping under different water pressures in the water supply pipe. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a turbulent embedded compensating dripper, which can maintain stable and uniform drip irrigation under different water pressures in a water supply pipe.

[0004] The problem described in the present invention is solved by the following technical solutions:

[0005] A turbulent embedded compensating dripper, comprising a fluid part, a bottom shell part and a compensating film arranged between the fluid part and the bottom shell part; the fluid part is sleeved in the bottom shell part; the fluid part comprises a fluid shell, a water inlet part and a water outlet part; the water inlet part and the water outlet part are both arranged on the fluid shell; the fluid shell comprises a square ring and a partition plate; the partition plate is arranged at the exact center of the inner wall of the square ring, symmetrically dividing the square ring into an upper cavity and a lower cavity; the water inlet part is arranged in the upper cavity; the water outlet part is arranged in the lower cavity; the water outlet part comprises an isolation square ring, an isolation plate and turbulent teeth; the isolation square ring is arranged at the center of the lower end face of the partition plate, and a water outlet frame is formed between the interior of the isolation square ring and the partition plate; a turbulent flow channel is formed between the outside of the isolation square ring, the inside of the square ring and the partition plate; the outer wall of the isolation square ring and the inner wall of the cavity part under the square ring are evenly provided with Turbulence teeth are arranged; an isolation plate is arranged between the outer wall of the isolation square ring and the inner wall of the lower cavity, and the isolation plate isolates the turbulent flow channel; the water inlet part includes a positioning slot, a weight reduction support, a water sealing platform, a compensation cavity, a water inlet hole, a turbulence hole and a water outlet hole; a positioning slot is arranged at one end of the upper cavity, a water sealing platform is arranged at the other end of the upper cavity, and a weight reduction support is arranged between the positioning slot and the water sealing platform; a compensation cavity is arranged at the center of the water sealing platform, and an outlet hole is arranged at the exact center of the compensation cavity, the water outlet hole passes through the partition plate, and the water outlet hole is located inside the water outlet frame in the lower cavity; a turbulence hole is arranged at the inner edge of the circumference of the compensation cavity, and the turbulence hole passes through the partition plate; a water inlet hole is arranged at the outer edge of the circumference of the water sealing platform, and the water inlet hole passes through the partition plate and the square ring; the turbulence hole and the water inlet hole are respectively located at the two ends of the turbulent flow channel in the lower cavity, and the turbulence hole and the water inlet hole are respectively located at the two ends of the isolation plate.

[0006] The above-mentioned turbulent embedded compensating dripper, the bottom shell part includes a bottom shell shell, reinforcement ribs, a filter window, a water injection port, a positioning column, a support ring, and an anti-siphon sealing ring; a recessed cavity is provided on one end face of the bottom shell shell, and a positioning column is provided at one end in the recessed cavity, a support ring is provided at the other end in the recessed cavity, an anti-siphon sealing ring is provided at the center of the support ring, a water injection port is provided at the center of the anti-siphon sealing ring, and the water injection port passes through the bottom shell shell; the bottom shell shell is provided with reinforcement ribs and a filter window on the other end face opposite to the recessed cavity, and the filter window covers the water injection port; the support ring is in the shape of a circular ring, and an opening is provided on its circumference, and the opening corresponds to the water inlet.

[0007] The above-mentioned turbulent embedded compensating dripper, the compensating film is clamped between the water sealing platform and the supporting ring; the compensating film is a circular film, the diameter of which is between 7.5-8.5mm and the thickness is between 0.8-1.2mm.

[0008] The above-mentioned turbulent embedded compensating dripper has fixed slots on the inner walls at both ends of the long side of the recessed cavity; fixed strips are provided on the outer walls at both ends of the long side of the square ring; and the fixed slots and the fixed strips form a snap fit.

[0009] In the above-mentioned turbulent embedded compensating dripper, the square ring of the fluid part is inserted into the recessed cavity of the bottom shell part, and the outer wall of the square ring and the inner wall of the recessed cavity are tightly fitted.

[0010] In the above-mentioned turbulent embedded compensating dripper, the height of the anti-siphon sealing ring is greater than the height of the supporting ring, and the height of the anti-siphon sealing ring is lower than the depth of the recessed cavity.

[0011] In the above-mentioned turbulent embedded compensating dripper, the end face of the lower cavity portion of the square ring is fixedly connected to the inner wall of the plastic hose; the side wall of the plastic hose is provided with a drip hole at the water outlet frame, and the drip hole connects the water outlet frame and the outside of the plastic hose.

[0012] The present invention effectively reduces the pressure of the incoming water flow through the turbulent effect of the turbulent flow channel, and effectively controls the drip flow rate through the cooperation of the compensating film and the turbulent flow channel, so that it can drip irrigation evenly; the present invention is also provided with an anti-siphon sealing ring, which has a good anti-siphon function and can prevent dirt from being sucked back into the dripper when irrigation is stopped, thereby effectively preventing the dripper from being blocked; in addition, the wide flow channel design of the turbulent flow channel allows larger particles to pass through without clogging the dripper, thereby greatly improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the fluid part of the present invention;

[0014] Figure 2 It is a rear view stereoscopic structural schematic diagram of the fluid part of the present invention;

[0015] Figure 3 This is a schematic diagram of the front view of the three-dimensional structure of the bottom shell part of the present invention;

[0016] Figure 4 This is a schematic diagram of the rear three-dimensional structure of the bottom shell part of the present invention;

[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention in an assembled state.

[0018] The list of numbers in the figure is: 1-1. Square ring, 1-2. Partition plate, 2-1. Positioning slot, 2-2. Weight reduction support, 2-3. Water sealing platform, 2-4. Compensation cavity, 2-5. Water inlet hole, 2-6. Turbulence hole, 2-7. Water outlet hole, 3-1. Isolation square ring, 3-2. Isolation plate, 3-3. Turbulence teeth, 3-4. Water outlet frame, 3-5. Turbulence flow channel, 4-1. Bottom shell, 4-2. Reinforcement rib, 4-3. Filter window, 4-4. Water inlet, 4-5. Positioning column, 4-6. Support ring, 4-7. Anti-siphon sealing ring, 4-8. Recessed cavity, 5. Compensation film, 6. Fixed slot, 7. Fixed strip. DETAILED DESCRIPTION

[0019] See also Figure 1 , 2 , 3, 4 and Figure 5The present invention comprises a fluid part, a bottom shell part and a compensation film 5 arranged between the fluid part and the bottom shell part; the fluid part is sleeved in the bottom shell part, and the plug-in cooperation between the fluid part and the bottom shell part is achieved by inserting the square ring 1-1 of the fluid part into the recessed cavity 4-8 of the bottom shell part, and the outer wall of the square ring 1-1 and the inner wall of the recessed cavity 4-8 are tightly fitted; in order to avoid the wrong direction when the fluid part is plugged into the bottom shell part, a positioning slot 2-1 and a positioning column 4-5 are also provided. Only when the positioning slot 2-1 and the positioning column 4-5 are correctly connected can the square ring 1-1 be inserted into the recessed cavity 4-8, otherwise the assembly cannot be successful, thereby ensuring the accuracy of assembly; the fluid part comprises a fluid shell, a water inlet part and a water outlet part; the inlet The water part and the water outlet part are both arranged on the fluid shell; the fluid shell includes a square ring 1-1 and a partition plate 1-2; the partition plate 1-2 is arranged at the center of the inner wall of the square ring 1-1, and symmetrically divides the square ring 1-1 into an upper cavity and a lower cavity; the water inlet part is arranged in the upper cavity; the water outlet part is arranged in the lower cavity; the upper cavity is located above the lower cavity; the water flow in the plastic hose enters the water inlet part, and then flows out from the water outlet part, dripping at a uniform flow rate for irrigation of crops; the water outlet part includes an isolation square ring 3-1, an isolation plate 3-2 and turbulent teeth 3-3; the isolation square ring 3-1 is arranged at the center of the lower end face of the partition plate 1-2, and a water outlet frame 3-4 is formed between the interior of the isolation square ring 3-1 and the partition plate 1-2, and the water flow The water flows out from the water outlet hole 2-7 on the water outlet frame 3-4 and drips onto the ground from the corresponding drip hole on the plastic hose; a turbulent flow channel 3-5 is formed between the outside of the isolation square ring 3-1, the inside of the square ring 1-1 and the partition plate 1-2; turbulent flow teeth 3-3 are evenly arranged on the outer wall of the isolation square ring 3-1 and the inner wall of the lower cavity of the square ring 1-1; the main function of the turbulent flow channel and the turbulent flow teeth 3-3 is to eliminate the residual energy of the pressure water flow in the flow channel, so that the water flow is evenly and slowly injected into the soil drop by drop from the outlet; an isolation plate 3-2 is arranged between the outer wall of the isolation square ring 3-1 and the inner wall of the lower cavity, and the isolation plate 3-2 isolates the turbulent flow channel 3-5; the water inlet part includes a positioning slot 2-1, a weight reduction support 2-2, a water sealing platform 2-3, a supplementary A compensation cavity 2-4, a water inlet hole 2-5, a turbulence hole 2-6 and a water outlet hole 2-7; a positioning slot 2-1 is provided at one end of the upper cavity, a water sealing platform 2-3 is provided at the other end of the upper cavity, and a weight reduction support 2-2 is provided between the positioning slot 2-1 and the water sealing platform 2-3; the positioning slot 2-1 is used for plugging and matching with the positioning column 4-5 to ensure the precise plugging and matching of the fluid part and the bottom shell part; a compensation cavity 2-4 is provided at the center of the water sealing platform 2-3, and an outlet hole is provided at the exact center of the compensation cavity 2-4, the water outlet hole 2-7 penetrates the partition plate 1-2, and the water outlet hole 2-7 is located inside the water outlet frame 3-4 in the lower cavity; a turbulence hole 2-6 is provided at the inner edge of the circumference of the compensation cavity 2-4, and the turbulence hole 2-6 penetrates the partition plate 1-2;A water inlet hole 2-5 is arranged at the outer edge of the circumference of the water sealing platform 2-3, and the water inlet hole 2-5 penetrates the partition plate 1-2 and the square ring 1-1; the turbulent hole 2-6 and the water inlet hole 2-5 are respectively located at the two ends of the turbulent flow channel 3-5 in the lower cavity, and the turbulent hole 2-6 and the water inlet hole 2-5 are respectively located at the two ends of the isolation plate 3-2; the closed cavity surrounded by the support ring 4-6, the anti-siphon sealing ring 4-7 and the compensation film 5 is a high-pressure cavity; the cavity between the compensation cavity 2-4 and the compensation film 5 is a pressure-stabilizing cavity; the compensation film 5 is clamped between the water sealing platform 2-3 and The compensating film 5 is a circular film with a diameter of 7.5-8.5mm and a thickness of 0.8-1.2mm; the height of the anti-siphon sealing ring 4-7 is greater than the height of the supporting ring 4-6, and the height of the anti-siphon sealing ring 4-7 is lower than the depth of the concave cavity 4-8; the height of the anti-siphon sealing ring 4-7 is slightly greater than the height of the supporting ring 4-6, which ensures that when the compensating film 5 touches and presses on the anti-siphon sealing ring 4-7 and the supporting ring 4-6, the compensating film 5 can seal the water inlet 4-4 when the water pressure is low. ;

[0020] The bottom shell part includes a bottom shell shell 4-1, a reinforcing rib 4-2, a filter window 4-3, a water injection port 4-4, a positioning column 4-5, a support ring 4-6, and an anti-siphon sealing ring 4-7; a recessed cavity 4-8 is provided on one end surface of the bottom shell shell 4-1, and a positioning column 4-5 is provided at one end in the recessed cavity 4-8, a support ring 4-6 is provided at the other end in the recessed cavity 4-8, an anti-siphon sealing ring 4-7 is provided at the center of the support ring 4-6, and a water injection port 4-4 is provided at the center of the anti-siphon sealing ring 4-7, and the water injection port 4-4 runs through the bottom shell shell 4-1; water in the plastic hose enters the bottom shell shell 4-1 through the water injection port 4-4, and the filter window 4-3 provided at the water injection port 4-4 can effectively remove the water contained in the water flow in the plastic hose. Larger particles are blocked outside the bottom shell 4-1 to prevent large particles from flowing into the water injection port 4-4 and causing blockage; when the water flow pressure in the plastic hose increases, the pressure on the compensation film 5 also increases accordingly. Since the compensation film 5 is elastic, the compensation film 5 also generates a corresponding reaction force on the water flow coming in from the water injection port 4-4. When the compensation film 5 is subjected to a large water pressure, the compensation film 5 bends and deforms toward the pressure stabilizing chamber, so that the water flow in the plastic hose flows from the gap between the compensation film 5 and the anti-siphon sealing ring 4-7 to the high-pressure chamber, that is, the cavity area between the anti-siphon sealing ring 4-7 and the support ring 4-6. Because the support ring 4-6 is shaped like a circular ring and has an opening on its circumference, the opening corresponds to the water inlet 2-5. This corresponding cooperation means that when the fluid part and the bottom shell part are spliced ​​together, the opening on the circumference of the support ring 4-6 is connected to the water inlet hole 2-5, so when the water flows into the high-pressure chamber, the water in the high-pressure chamber flows from the opening on the circumference of the support ring 4-6 to the corresponding water inlet hole 2-5; and because the water inlet hole 2-5 passes through the partition plate 1-2 and the square ring 1-1, when the fluid part and the bottom shell part are in a state of complete splicing, the water inlet hole 2-5 connects the water in the high-pressure chamber and the pressure-stabilizing chamber; so when the water flows from the high-pressure chamber to the water inlet hole 2-5, part of the water flows to the pressure-stabilizing chamber, and the other part of the water flows to the turbulent flow channel 3-5; the turbulent flow channel 3-5 is an important component structure for maintaining the uniformity of dripping, and the water flows through the turbulent flow channel After the secondary decompression, the turbulent teeth 3-3 in 3-5 flow into the pressure stabilizing chamber through the turbulent holes 2-6, and then flow out of the pressure stabilizing chamber through the water outlet holes 2-7 and into the water outlet frame 3-4. Since the end face of the lower cavity portion of the square ring 1-1 is fixedly connected to the inner wall of the plastic hose; the side wall of the plastic hose is provided with a drip hole at the water outlet frame 3-4, and the drip hole connects the water outlet frame 3-4 and the outside of the plastic hose; therefore, there is only one outlet, the drip hole, between the water outlet frame 3-4 and the plastic hose, so the water droplets in the water outlet frame 3-4 drip out of the plastic hose from the drip hole; similarly, a closed cavity is also formed between the turbulent flow channel 3-5 and the plastic hose, and the water flowing from the water inlet hole 2-5 to the turbulent flow channel 3-5 can only flow out from the turbulent hole 2-6, and will not directly flow into the water outlet frame 3-4;The method of setting the dripper on the plastic hose is that, when the plastic hose is half-melted, the water outlet frame 3-4 is oriented downward, the dripper is welded below the inner wall of the plastic hose, and then a drip hole is opened on the side wall of the plastic hose at a position corresponding to the water outlet frame 3-4; the bottom shell 4-1 is provided with a reinforcing rib 4-2 and a filter window 4-3 on the other end face opposite to the concave cavity 4-8, and the filter window 4-3 covers the water injection port 4-4. ;

[0021] When the water pressure in the plastic hose becomes very high, the elasticity of the compensation film 5 cannot resist the water flow from the water injection port 4-4, and the high-pressure water flow will force the compensation film 5 to deform significantly and sink into the pressure stabilizing chamber, so that the deformed compensation film 5 blocks the passage from the water inlet 2-5 to the pressure stabilizing chamber, causing the water flowing from the high-pressure chamber to the water inlet 2-5 to flow to the turbulent flow channel 3-5, thereby reducing the flow area in the pressure stabilizing chamber, thereby controlling the water outlet flow rate of the water outlet 2-7; conversely, when the pressure in the plastic hose becomes lower, the deformation of the compensation film 5 becomes smaller, and the flow area in the pressure stabilizing chamber becomes larger; in this way, the flow rate can be kept stable under different pressures, thereby playing a compensating role.

[0022] In order to make the splicing between the recessed cavity 4-8 and the square ring 1-1 more stable, a fixed slot 6 and a fixed strip 7 are provided; the inner walls at both ends of the long side of the recessed cavity 4-8 are provided with fixed slots 6; the outer walls at both ends of the long side of the square ring 1-1 are provided with fixed strips 7; the fixed slots 6 and the fixed strips 7 constitute a snap fit, which strengthens the stability of the connection between the recessed cavity 4-8 and the square ring 1-1.

Claims

1. A turbulent embedded compensating dripper, characterized in that: The invention comprises a fluid part, a bottom shell part and a compensation film (5) arranged between the fluid part and the bottom shell part; the fluid part is sleeved in the bottom shell part; the fluid part comprises a fluid shell, a water inlet part and a water outlet part; the water inlet part and the water outlet part are both arranged on the fluid shell; the fluid shell comprises a square ring (1-1) and a partition plate (1-2); the partition plate (1-2) is arranged at the exact center of the inner wall of the square ring (1-1) to symmetrically divide the square ring (1-1) into an upper cavity and a lower cavity; the water inlet part is arranged in the upper cavity; the water outlet part is arranged in the lower cavity; the water outlet part comprises an isolation square ring (3-1), an isolation plate (3-2) and turbulent teeth (3-3); the isolation The square ring (3-1) is arranged at the center of the lower end surface of the partition plate (1-2), and a water outlet frame (3-4) is formed between the interior of the isolation square ring (3-1) and the partition plate (1-2); a turbulent flow channel (3-5) is formed between the exterior of the isolation square ring (3-1), the interior of the square ring (1-1) and the partition plate (1-2); turbulent flow teeth (3-3) are evenly arranged on the outer wall of the isolation square ring (3-1) and the inner wall of the lower cavity of the square ring (1-1); an isolation plate (3-2) is arranged between the outer wall of the isolation square ring (3-1) and the inner wall of the lower cavity, and the isolation plate (3-2) isolates the turbulent flow channel (3-5); the water inlet part comprises a positioning slot (2-1), a weight reduction support member (2-1), and a plurality of turbulent flow teeth (3-3) arranged on the outer wall of the isolation square ring (3-1). 2), a water sealing platform (2-3), a compensation cavity (2-4), a water inlet hole (2-5), a turbulent flow hole (2-6) and a water outlet hole (2-7); a positioning slot (2-1) is provided at one end of the upper cavity, a water sealing platform (2-3) is provided at the other end of the upper cavity, and a weight reduction support member (2-2) is provided between the positioning slot (2-1) and the water sealing platform (2-3); a compensation cavity (2-4) is provided at the center of the water sealing platform (2-3), and an outlet hole is provided at the exact center of the compensation cavity (2-4); the water outlet hole (2-7) penetrates the partition plate (1-2), and the water outlet hole (2-7) is located inside the water outlet frame (3-4) in the lower cavity; a circumferential inner edge of the compensation cavity (2-4) is provided A turbulent hole (2-6), the turbulent hole (2-6) penetrates the partition plate (1-2); a water inlet hole (2-5) is arranged at the outer edge of the circumference of the water sealing platform (2-3), the water inlet hole (2-5) penetrates the partition plate (1-2) and the square ring (1-1); the turbulent hole (2-6) and the water inlet hole (2-5) are respectively located at the two ends of the turbulent flow channel (3-5) in the lower cavity, and the turbulent hole (2-6) and the water inlet hole (2-5) are respectively located at the two ends of the isolation plate (3-2); the bottom shell part includes a bottom shell shell (4-1), a reinforcing rib (4-2), a filter window (4-3), a water injection port (4-4), a positioning column (4-5), a support ring (4-6), and an anti-siphon sealing ring (4-7);A recessed cavity (4-8) is provided on one end surface of the bottom shell shell (4-1), and a positioning column (4-5) is provided at one end of the recessed cavity (4-8), a support ring (4-6) is provided at the other end of the recessed cavity (4-8), an anti-siphon sealing ring (4-7) is provided at the center of the support ring (4-6), a water injection port (4-4) is provided at the center of the anti-siphon sealing ring (4-7), and the water injection port (4-4) passes through the bottom shell shell (4-1); a reinforcing rib (4-2) and a filter window (4-3) are provided on the other end surface of the bottom shell shell (4-1) opposite to the recessed cavity (4-8), and the filter window (4-3) covers the bottom shell shell (4-1). The cover is placed at the water inlet (4-4); the support ring (4-6) is in the shape of a circular ring, and an opening is arranged on its circumference, and the opening corresponds to the water inlet hole (2-5); the compensation film (5) is clamped between the water sealing platform (2-3) and the support ring (4-6); the compensation film (5) is a circular film, and its diameter is between 7.5-8.5 mm, and its thickness is between 0.8-1.2 mm; fixed card grooves (6) are arranged on the inner walls at both ends of the long side of the concave cavity (4-8); fixed card strips (7) are arranged on the outer walls at both ends of the long side of the square ring (1-1); the fixed card grooves (6) and the fixed card strips (7) form a snap fit. ; 2. The turbulent embedded compensating dripper according to claim 1, characterized in that: The square ring (1-1) of the fluid part is inserted into the recessed cavity (4-8) of the bottom shell part, and the outer wall of the square ring (1-1) and the inner wall of the recessed cavity (4-8) are tightly fitted.

3. The turbulent embedded compensating dripper according to claim 2, characterized in that: The height of the anti-siphon sealing ring (4-7) is greater than the height of the supporting ring (4-6), and the height of the anti-siphon sealing ring (4-7) is lower than the depth of the concave cavity (4-8).

4. The turbulent embedded compensating dripper according to claim 3, characterized in that: The end surface of the lower cavity portion of the square ring (1-1) is fixedly connected to the inner wall of the plastic hose; the side wall of the plastic hose is provided with a drip hole at the water outlet frame (3-4), and the drip hole communicates with the water outlet frame (3-4) and the outside of the plastic hose.

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