Anti-blocking pressure-compensated dripper

Abstract

The application discloses a kind of anti-blocking pressure-compensated drippers, the purpose of the present application is to solve the existing drip irrigation device, with long time use, there is sediment in the dripper, easy to block, affect the uniform water supply of crops.The water flowing out of the water pipe outlet impacts the paddle of the rotating mechanism, causing the paddle to rotate the rotating rod, which drives the lower rotating paddle to rotate at high speed in the flow guide cylinder, impacting the sediment at the bottom of the flow guide cylinder, while the water flowing out of the water pipe outlet flows into the flow guide cylinder from the flow guide groove, and then flows out along the water outlet pipe.The application is used for preventing the outlet of the dripper from being blocked.

Description

Technical Field

[0001] This invention relates to the field of agricultural engineering technology. Background Technology

[0002] With global population growth, the demand for food and agricultural products is constantly increasing. Traditional irrigation methods, such as flood irrigation, suffer from serious water waste. Drip irrigation technology delivers water to drippers near the plant roots through a pipeline system, and then drips the water onto the plant roots through micro-holes. This method can reduce water evaporation and loss, achieve precise water supply, and improve irrigation efficiency. However, while existing dripper heads can provide even water distribution and have a certain degree of anti-clogging capability, they are currently generally designed to prevent clogging by larger particles. With prolonged use, sediment can accumulate inside the drippers, easily causing blockages and affecting the even distribution of water to crops. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that existing drip irrigation emitters accumulate sediment and sand inside over time, which can easily cause blockages and affect the uniform water supply to crops. This invention proposes a blockage-resistant pressure-compensating drip emitter.

[0004] A clog-resistant pressure-compensating dripper includes a housing with a lower opening, a rotating mechanism, a rotating lever, a water outlet pipe, and a buffer mechanism.

[0005] The housing extends into the water pipe outlet and is snapped into place at the water pipe outlet; an inlet is opened at the top of the housing.

[0006] The buffer mechanism includes an elastic sheet and a flow guide tube;

[0007] The upper end face of the guide tube is stepped, and the elastic sheet covers the lower step surface of the guide tube. After the cover is closed, the elastic sheet is flush with the upper step surface. A guide groove is provided on the outer wall of the guide tube, and a through hole is opened at the end of the guide groove. The bottom of the guide tube is connected to the water outlet pipe, and the water outlet pipe extends through the bottom of the shell to the outside of the shell.

[0008] The shell is fitted over the guide tube, and there is a gap between the elastic sheet and the shell, which is used for drainage;

[0009] The bottom end of the rotating mechanism passes through the top surface of the housing and the elastic plate in sequence, and is fixedly connected to the rotating paddle located below the elastic plate.

[0010] Preferably, the rotating mechanism includes a blade and a rotating rod;

[0011] The top of the rotating rod is connected to the blade, and the bottom of the rotating rod passes through the housing and the elastic plate in sequence and is connected to the rotating paddle located at the bottom of the elastic plate.

[0012] Preferably, the dripper further includes a water outlet adjustment mechanism for adjusting the opening degree of the water outlet pipe.

[0013] Preferably, the water outlet regulating mechanism includes a rotating shaft, a pulley, a motor, and a baffle.

[0014] The baffle is circular with a notch. The pulley is fitted onto the rotating shaft, and the two ends of the rotating shaft are connected to the two ends of the notch.

[0015] An annular groove is opened on the inner wall of the water outlet pipe, and the annular groove is opened in the horizontal direction. A pulley and a rotating shaft are installed in the groove. The motor housing is fixed to the outer wall of the water outlet pipe, and the output shaft of the motor passes through the side wall of the water outlet pipe and is connected to the rotating shaft.

[0016] Preferably, the dripper further includes a pH sensor, a drive module, and a microcontroller;

[0017] A pH sensor is used to collect the pH value of water in real time and send it to a microcontroller.

[0018] The microcontroller is used to calculate the first opening degree based on the pH value and the lower limit of the preset range, and to calculate the second opening degree based on the pH value and the lower limit of the preset range. It determines whether the pH value is within the preset range. If it is less than the preset range, the drive module controls the motor to drive the water outlet adjustment mechanism to adjust to the first opening degree. If it is greater than the preset range, the drive module controls the motor to drive the water outlet adjustment mechanism to adjust to the second opening degree.

[0019] Preferably, the first opening is expressed as: initial opening + (lower limit of the preset range – pH value) * 10%.

[0020] Preferably, the second opening is expressed as: initial opening + (ph value – upper limit of the preset range) * 10%.

[0021] Preferably, the initial opening is 50%, and the preset range is 6.5-7.5.

[0022] The beneficial effects of this invention are:

[0023] When the irrigation system starts working, water flows through the inlet of the dripper in the pipe. Simultaneously, the water flow impacts the blades of the rotating mechanism, causing the blades to drive the rotating rod to rotate. The rotation of the rotating rod drives the lower rotating vane to rotate at high speed inside the guide tube, impacting the sediment at the bottom, breaking up the deposited sediment and dispersing it into the water flow. As the water continues to flow, the sediment is discharged from the dripper through the outlet, effectively preventing clogging caused by sediment buildup at the bottom of the outlet chamber.

[0024] The buffer mechanism of this invention effectively slows down the water flow rate, resulting in a water droplet shape at the outlet.

[0025] The present invention also includes a rotating mechanism to effectively adjust the water output; and the present invention adjusts the water output by collecting pH value. Attached Figure Description

[0026] Figure 1 A structural view of a clog-resistant pressure-compensating dripper;

[0027] Figure 2 Another structural view of an anti-clogging pressure-compensating dripper;

[0028] Figure 3 A perspective view of a clog-resistant pressure-compensated dripper;

[0029] Figure 4 This is a structural diagram of the buffer mechanism;

[0030] Figure 5 Here is a structural diagram of the guide tube;

[0031] Figure 6 This is a structural diagram of the water outlet regulating mechanism. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0035] Example:

[0036] A clog-resistant pressure-compensating dripper includes a housing 4 with a lower opening, a rotating mechanism 1, a rotating paddle 3, a water outlet pipe 2, and a buffer mechanism 5.

[0037] The housing 4 extends into the water pipe outlet and is snapped into the water pipe outlet. A water inlet 6 is opened on the top of the housing 4.

[0038] The buffer mechanism 5 includes an elastic sheet 5-1 and a flow guide tube 5-2;

[0039] The upper end face of the guide tube 5-2 is stepped. The elastic sheet 5-1 covers the lower stepped surface 5-2-4 of the guide tube 5-2. After covering, the elastic sheet 5-1 is flush with the upper stepped surface 5-2-3. A guide groove 5-2-1 is provided on the outer wall of the guide tube 5-2. A through hole 5-2-2 is opened at the end of the guide groove 5-2-1. The bottom of the guide tube 5-2 is connected to the water outlet pipe 2. The water outlet pipe 2 passes through the bottom of the shell 4 and extends to the outside of the shell 4.

[0040] The housing 4 is fitted outside the guide tube 5-2, and there is a gap between the elastic sheet 5-1 and the housing 4, which is used for drainage;

[0041] The bottom end of the rotating mechanism 1 passes through the top surface of the housing 4 and the elastic plate 5-1 in sequence, and is fixedly connected to the rotating paddle 3 located below the elastic plate 5-1.

[0042] The composition of the rotating mechanism is further defined below: the rotating mechanism 1 includes a blade 1-1 and a rotating rod 1-2;

[0043] The top end of the rotating rod 1-2 is connected to the blade 1-1, and the bottom end of the rotating rod 1-2 passes through the housing 4 and the elastic plate 6-1 in sequence and is connected to the rotating paddle 3 located at the bottom of the elastic plate 6-1.

[0044] Specifically, the water in the pipe impacts the rotation of the impeller 1-1, which in turn drives the rotating blade 3 to rotate, thus breaking up the sediment deposited at the bottom of the outlet chamber and preventing large objects from clogging the outlet. The rotating blade 3 maintains a gap of approximately 2-5 mm with the bottom of the buffer mechanism 5 to ensure that the deposited sediment is fully broken up during rotation. The elastic plate provides some support and limits to the rotating rod.

[0045] The diversion channel effectively slows down the water flow, making irrigation more even and promoting good crop growth.

[0046] The following further defines the structure included in this embodiment: the dripper also includes a water outlet adjustment mechanism 7, which is used to adjust the opening degree of the water outlet pipe 2.

[0047] The water outlet regulating mechanism 7 includes a rotating shaft 7-1, a pulley 7-2, a motor, and a baffle 7-3;

[0048] The baffle 7-3 is circular with a notch. The pulley 7-2 is fitted onto the rotating shaft 7-1, and the two ends of the rotating shaft 7-1 are connected to the two ends of the notch.

[0049] An annular groove is opened on the inner wall of the water outlet pipe 2, and the annular groove is opened in the horizontal direction. A pulley 7-2 and a rotating shaft 7-1 are installed in the groove. The motor housing is fixed to the outer wall of the water outlet pipe 2, and the output shaft of the motor passes through the side wall of the water outlet pipe 2 and is connected to the rotating shaft 7-1.

[0050] Specifically, the motor drives the rotating shaft 7-1 to pull, which in turn causes the pulley to slide within the annular groove, causing the baffle 7-3 to be pulled within the water outlet pipe 2, thereby adjusting the opening of the water outlet pipe 2. Alternatively, a track can be provided so that the pulley slides on the track, allowing for faster adjustment of the opening.

[0051] The following further defines the implementation method of the water outlet adjustment mechanism 7: the dripper also includes a pH sensor, a drive module and a microcontroller;

[0052] A pH sensor is used to collect the pH value of water in real time and send it to a microcontroller.

[0053] The microcontroller is used to calculate the first opening degree based on the pH value and the lower limit of the preset range, calculate the second opening degree based on the pH value and the lower limit of the preset range, and determine whether the pH value is within the preset range. If it is less than the preset range, the drive module controls the motor to drive the water outlet adjustment mechanism 7 to adjust to the first opening degree. If it is greater than the preset range, the drive module controls the motor to drive the water outlet adjustment mechanism 7 to adjust to the second opening degree.

[0054] The first opening is expressed as: initial opening + (lower limit of the preset range – pH value) * 10%.

[0055] The second opening is expressed as: initial opening + (ph value – upper limit of the preset range) * 10%.

[0056] The initial opening can be 50%, which means that it just blocks half of the water outlet pipe. The preset range is 6.5-7.5.

[0057] Specifically, the drive module mainly functions as a power amplifier and signal converter, transforming the weak control signals output by the microcontroller into appropriate current and voltage signals that can drive the motor to operate normally. At the same time, it monitors and provides feedback on the motor's operating status to achieve precise control.

[0058] In practical applications, the pH sensor should be installed in a suitable location inside the water pipe to ensure timely and accurate monitoring of the pH value of the irrigation water flowing into the dripper.

[0059] If the pH value is within the preset range, the microcontroller does not send any control signal, and the dripper continues to work normally, relying solely on the anti-clogging function of the rotating lever to maintain the unobstructed water outlet.

[0060] If the pH value is outside the preset range, the microcontroller calculates the necessary adjustment to the baffle opening based on a preset algorithm. When the pH value exceeds the upper limit of the preset range, it indicates that the irrigation water is too alkaline, which may lead to scaling and other problems. The microcontroller calculates that the outlet opening needs to be increased to increase the water flow and reduce the concentration of alkaline substances in the water. The opening increases by 10% for every unit of pH value above the preset range. When the pH value is below the lower limit of the preset range, it indicates that the irrigation water is too acidic, which may corrode pipes and dripper components. The microcontroller calculates that the outlet opening needs to be decreased to prolong the water's residence time in the dripper, allowing the acidic substances in the water to fully react with the buffer material inside the dripper, reducing acid corrosion. The opening increases by 10% for every unit of pH value deviating from the preset range. When the pH value returns to the normal range, the opening returns to 50%.

[0061] The microcontroller sends control signals to the motor drive module based on the calculation results. The microcontroller calculates the motor's rotation direction and angle based on the required change in the opening of the baffle 7-3, and controls the motor's forward and reverse rotation and speed through the drive module. When the motor rotates, it moves the pulley via a connecting rod, thereby moving the baffle at the outlet and changing the outlet opening.

[0062] This embodiment also includes feedback and optimization: after the baffle moves to a new position, after a period of time (every 1 minute), the microcontroller reads the data from the pH sensor again to observe whether the pH value returns to the normal range or approaches the target value.

[0063] If the pH value is still unsatisfactory, the microcontroller further fine-tunes the baffle opening based on the deviation between the new pH value and the target value. If the pH value is still too high, the outlet opening is further increased; if the pH value is still too low, the outlet opening is further decreased. The above steps of pH monitoring, calculation, and baffle opening adjustment are repeated until the pH value stabilizes within an acceptable range or the set maximum number of adjustments is reached.

[0064] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A clog-resistant pressure-compensating dripper, characterized in that, It includes a housing with a lower opening (4), a rotating mechanism (1), a rotating paddle (3), a water outlet pipe (2), and a buffer mechanism (5); The housing (4) extends into the water pipe outlet and is snapped into the water pipe outlet. A water inlet (6) is opened on the top of the housing (4). The buffer mechanism (5) includes an elastic sheet (5-1) and a flow guide tube (5-2); The upper end face of the guide tube (5-2) is stepped. The elastic sheet (5-1) covers the lower step surface (5-2-4) of the guide tube (5-2). After covering, the elastic sheet (5-1) is flush with the upper step surface (5-2-3). A guide groove (5-2-1) is provided on the outer wall of the guide tube (5-2). A through hole (5-2-2) is opened at the end of the guide groove (5-2-1). The bottom of the guide tube (5-2) is connected to the water outlet pipe (2). The water outlet pipe (2) passes through the bottom of the shell (4) and extends to the outside of the shell (4). The shell (4) is fitted over the guide tube (5-2), and there is a gap between the elastic sheet (5-1) and the shell (4), which is used for drainage; The bottom end of the rotating mechanism (1) passes through the top surface of the housing (4) and the elastic plate (5-1) in sequence, and is fixedly connected to the rotating paddle (3) located below the elastic plate (5-1); The rotating mechanism (1) includes a blade (1-1) and a rotating rod (1-2). The top of the rotating rod (1-2) is connected to the blade (1-1), and the bottom of the rotating rod (1-2) passes through the housing (4) and the elastic plate (5-1) in sequence and is connected to the rotating paddle (3) located at the bottom of the elastic plate (5-1); The dripper also includes a water outlet adjustment mechanism (7), which is used to adjust the opening of the water outlet pipe (2); The water outlet regulating mechanism (7) includes a rotating shaft (7-1), a pulley (7-2), a motor, and a baffle (7-3). The baffle (7-3) is circular with a notch. The pulley (7-2) is fitted onto the rotating shaft (7-1), and the two ends of the rotating shaft (7-1) are connected to the two ends of the notch. An annular groove is opened on the inner wall of the water outlet pipe (2), and the annular groove is opened in the horizontal direction. A pulley (7-2) and a rotating shaft (7-1) are installed in the groove. The motor housing is fixed to the outer wall of the water outlet pipe (2), and the output shaft of the motor passes through the side wall of the water outlet pipe (2) and is connected to the rotating shaft (7-1).

2. The anti-clogging pressure-compensating dripper according to claim 1, characterized in that, The dripper also includes a pH sensor, a drive module, and a microcontroller; A pH sensor is used to collect the pH value of water in real time and send it to a microcontroller. The microcontroller is used to calculate the first opening degree based on the pH value and the lower limit of the preset range, and to calculate the second opening degree based on the pH value and the upper limit of the preset range. It determines whether the pH value is within the preset range. If it is less than the preset range, the driver module controls the motor to drive the water outlet adjustment mechanism (7) to adjust to the first opening degree. If it is greater than the preset range, the driver module controls the motor to drive the water outlet adjustment mechanism (7) to adjust to the second opening degree.

3. The anti-clogging pressure-compensating dripper according to claim 2, characterized in that, The first opening is expressed as: initial opening + (lower limit of the preset range – pH value) * 10%.

4. The anti-clogging pressure-compensating dripper according to claim 2, characterized in that, The second opening is expressed as: initial opening + (ph value – upper limit of the preset range) * 10%.

5. A clog-resistant pressure-compensating dripper according to claim 3 or 4, characterized in that, The initial opening is 50%, and the preset range is 6.5-7.5.

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