Conveying and sprinkling pipe for agricultural irrigation

Abstract

The invention discloses a conveying liquid spraying pipe for agricultural irrigation, and relates to the technical field of agricultural irrigation, the conveying liquid spraying pipe comprises a liquid supply device, the side surface of the liquid supply device is fixedly connected with a first conveying pipe, the surface, away from the liquid supply device, of the first conveying pipe is fixedly connected with a second conveying pipe, and the arc surface of the first conveying pipe is fixedly connected with a gas supply device; an outer frame is fixedly connected to the top face of the air supply device, an auxiliary conveying mechanism used for removing dirt on the spray heads is arranged in the first conveying pipe, an auxiliary switching mechanism used for switching the spraying modes is arranged at the end, away from the first conveying pipe, of the second conveying pipe, and the auxiliary switching mechanism can switch the spraying modes without disassembling the spray heads. Operators can quickly switch between different spraying modes through simple adjustment, the working continuity is improved, the auxiliary conveying mechanism can be cleaned through air bubbles in a non-contact mode, the auxiliary conveying mechanism does not make direct contact with spraying holes, and therefore the risk of physical damage to the spraying holes is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation, in particular to a liquid delivery pipe used for agricultural irrigation. Background Art

[0002] A liquid delivery pipe for agricultural irrigation is a pipe specially designed to deliver water or liquid fertilizer to farmland for spraying.

[0003] Different crops have different water requirements and absorption methods at different growth stages. For example, in the seedling stage, crops need finer mist spraying to avoid impact damage to the seedlings and to distribute the water more evenly on the soil surface. For some larger crops or when deep irrigation is required, columnar spraying can deliver water deeper into the soil. Mist spraying can increase the contact area between water and air, which helps to increase the evaporation rate of water. It is more suitable in some dry climate areas or when the air humidity needs to be increased. Columnar spraying can deliver water to specific areas more concentratedly, reduce water loss, and improve the utilization efficiency of irrigation water.

[0004] However, in the prior art, in some small and medium-sized enterprises, it is still necessary to remove the nozzle and replace it with another one to adjust the spraying mode. Each time the nozzle is replaced, it is necessary to disassemble and install it. This process is relatively complicated and requires a lot of time and energy. Frequent replacement of nozzles will interrupt the spraying operation, resulting in extended working hours and reduced overall work efficiency. Disassembly and installation of nozzles require certain physical strength and skills. Frequent operations will increase the labor intensity of the staff. Repeated disassembly and installation can easily cause wear on the nozzles and connectors, and may even cause damage to the nozzles or loose connectors, affecting the normal use and service life of the nozzles.

[0005] In addition, after long-term use, the irrigation water contains impurities such as sediment, suspended matter, and organic matter. These impurities will gradually accumulate in the small channels of the nozzles under the action of water flow, causing blockage. Certain chemical substances in the water, such as calcium and magnesium ions, will form precipitates under certain conditions. These precipitates may adhere to the inside of the nozzles, gradually accumulate and cause blockage. In the prior art, the nozzles are disassembled from the liquid spraying pipes, and the nozzle holes are checked for foreign matter. The nozzle holes are gently cleaned with a fine needle or a toothpick. , while a fine needle or toothpick will scratch or enlarge the spray hole, causing the spray effect of the nozzle to deteriorate or even fail to spray normally. For some sticky or stubborn blockages, a fine needle or toothpick cannot completely remove them, thus affecting the normal use of the nozzle. During the cleaning process, the fine needle or toothpick itself will carry some tiny impurities, which will enter the spray hole and cause secondary blockage. It takes certain skills and patience to clean the spray hole with a fine needle or toothpick. Improper operation will cause further damage to the nozzle. Cleaning the spray holes one by one is a tedious task that requires more time and effort.

[0006] Therefore, a liquid delivery pipe for agricultural irrigation is proposed to solve the above problems. Summary of the invention

[0007] In view of this, the technical problem to be solved by the present invention is to propose a liquid delivery pipe for agricultural irrigation to solve the problem that the existing technology requires disassembly and installation operations to replace the nozzle. This process is relatively complicated and requires a lot of time and effort. Frequent replacement of nozzles will interrupt the spraying operation, resulting in extended working time and reduced overall work efficiency. Fine needles or toothpicks will scratch or enlarge the spray holes, resulting in poor spray effect of the nozzle or even failure to spray normally. For some sticky or stubborn blockages, fine needles or toothpicks cannot completely remove them, thus affecting the normal use of the nozzle.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid delivery pipe for agricultural irrigation, comprising: a liquid supply device, a first delivery pipe is fixedly connected to the side of the liquid supply device, a second delivery pipe is fixedly connected to the side of the first delivery pipe away from the liquid supply device, an air supply device is fixedly connected to the arc surface of the first delivery pipe, an outer frame is fixedly connected to the top surface of the air supply device, an auxiliary delivery mechanism for removing dirt from the nozzle is arranged inside the first delivery pipe, and an auxiliary switching mechanism for switching the spraying mode is arranged at the end of the second delivery pipe away from the first delivery pipe;

[0009] The auxiliary conveying mechanism comprises an electric telescopic rod, which is fixedly connected to the side of the air supply device, and an auxiliary thin plate for adjusting the size of bubbles is fixedly connected to the side of the electric telescopic rod away from the air supply device;

[0010] The auxiliary switching mechanism comprises a first circular plate, the first circular plate is fixedly connected to the inner wall of the second transport pipe, and the side surface of the first circular plate is rotatably connected to a second circular plate for supporting the switching nozzle.

[0011] Preferably, the auxiliary conveying mechanism also includes a first rotating column, which is rotatably connected to the inside of the first fixed plate, and a side of the first fixed plate close to the first rotating column is rotatably connected to an L-shaped knocking rod, and a side of the L-shaped knocking rod close to the first rotating column is fixedly connected to a wedge-shaped push block, a side of the air supply device is fixedly connected to a first support plate, and a side of the first support plate away from the first fixed plate is fixedly connected to a connecting rod, a first telescopic rod is fixedly connected between the connecting rod and the L-shaped knocking rod, and a first return spring is sleeved on the outer surface of the first telescopic rod.

[0012] Preferably, a first cylinder is fixedly connected to the interior of the first transport tube, a first circular hole is opened in the interior of the first cylinder, an auxiliary thin plate is slidably connected to the interior of the first cylinder, a second return spring is fixedly connected between the end of the auxiliary thin plate away from the electric telescopic rod and the first cylinder, and a second circular hole is opened in the interior of the auxiliary thin plate.

[0013] Preferably, the auxiliary switching mechanism also includes a first slider, which is slidably connected to the inside of the first circular plate. The second circular plate is provided with an arc groove, and a first sliding rod is slidably connected in the arc groove. The first sliding rod is fixedly connected to one end of the first slider close to the second circular plate.

[0014] Preferably, one end of the first slide bar away from the first slide block is fixedly connected to the second slide block, one end of the second slide block is fixedly connected to a fan-shaped baffle, and one end of the second slide block away from the fan-shaped baffle is fixedly connected to an arc-shaped baffle.

[0015] Preferably, a second cylinder is fixedly connected to a surface of the first circular plate away from the second circular plate, a second nozzle is fixedly connected to an end of the second cylinder away from the first circular plate, and a first nozzle is fixedly connected to an end of the second transport pipe away from the first transport pipe, and the second nozzle is located at the center of the first nozzle.

[0016] Preferably, an auxiliary plate is fixedly connected to the arcuate surface of the second transport pipe.

[0017] Preferably, the first sliding block is slidably matched with the first circular plate.

[0018] Compared with the prior art, the present invention provides a liquid delivery pipe for agricultural irrigation, which has the following beneficial effects:

[0019] 1. Through the cooperation between the first circular plate, the second circular plate, the first slider, the first slide bar, the second slider, the fan-shaped baffle and the arc baffle in the auxiliary switching mechanism, the spraying mode can be switched without disassembling the nozzle, and the nozzle does not need to be disassembled and installed, which saves time and manpower for replacing the nozzle. The operator can quickly switch between different spraying modes through simple adjustments, thereby improving the continuity and efficiency of the work. Frequent disassembly and installation of the nozzle will cause wear of the nozzle interface and even damage the nozzle or the connector. The adjustable nozzle avoids such frequent disassembly and assembly operations, reduces the loss and maintenance cost of the equipment, and can adjust the spraying mode at any time according to actual needs to adapt to different work scenes and task requirements. Whether it is a large-area mist spraying or a concentrated columnar spraying, it can be easily achieved, which improves the versatility and flexibility of the equipment. In addition, there is no need for the staff to manually rotate the second circular plate, and the motor can be remotely controlled to adjust the spraying mode, which reduces the manual adjustment that causes faster wear of the nozzle components, and also reduces the need for the staff to directly contact the equipment in the field, thereby improving safety.

[0020] 2. Through the cooperation among the air supply device, the first cylinder, the first circular hole, the auxiliary thin plate, the second return spring, the second circular hole and the electric telescopic rod in the auxiliary conveying mechanism, air can be transported into the second conveying tube to form bubbles. Cleaning through air bubbles is a manual non-contact method. Manual work will not directly touch the spray hole, thereby reducing the risk of physical damage to the spray hole. This can better protect the structural integrity of the nozzle, avoid scratching, expanding the spray hole or changing the spray characteristics of the nozzle. When the bubbles flow in the conveying spray pipe, they can act more evenly on various parts of the nozzle, including the inside and around the spray hole. This comprehensive cleaning action can more effectively remove blockages and impurities and improve the cleaning effect, rather than just being limited to the surface of the spray hole. It is different from fine needles or toothpicks that may introduce new impurities. The quality of air is different. The air itself is relatively pure and will not bring additional pollution risks to the nozzle, which helps to maintain the cleanliness of the nozzle and reduce the possibility of secondary blockage. Since physical contact and scratching are avoided, this cleaning method causes less wear on the nozzle, which helps to extend the service life of the nozzle and reduce the frequency and cost of replacing the nozzle. Air bubbles are used for cleaning by utilizing the impact force and vibration effect of bubbles to remove dirt. Compared with relying on the flushing effect of water flow for cleaning, it saves more water resources and avoids waste of water resources. Air bubbles can operate at a lower pressure to reduce the pressure on the pipeline, while direct water passage usually requires a higher water pressure, which will cause additional pressure on the pipeline. Air can also remove residual liquid to avoid the production of water rust or dirt in the pipe for a long time, and avoid freezing when the temperature is relatively low in winter.

[0021] 3. Through the cooperation between the first rotating column, the connecting rod, the first telescopic rod, the first return spring, the L-shaped knocking rod and the wedge-shaped push block in the auxiliary conveying mechanism, the second transport pipe can be knocked, and the pipe can be lightly knocked while conveying air to the conveying spray pipe. The vibration generated by the knocking can assist the bubbles to more effectively remove stubborn dirt. The vibration can help the bubbles to enter the tiny gaps of the nozzle more deeply. The slight knocking can loosen the deposits on the pipe wall, making it easier for the bubbles to be carried away by the bubbles, which helps to remove the minerals and organic matter accumulated for a long time. The vibration generated by the knocking can help the bubbles to be more evenly distributed in the pipe, ensuring that the cleaning effect covers the entire pipe system. The vibration caused by the knocking can increase the turbulence of the water flow, and the turbulence helps to better remove the dirt on the inner wall of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional side view of the overall structure of the present invention;

[0023] Figure 2 It is a front view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the outer frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection relationship structure of the first rotating column of the present invention;

[0026] Figure 5 This is a schematic diagram of the first cylinder connection relationship structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the partial explosion structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the partial explosion structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the second transport tube of the present invention;

[0030] Fig. 9 This is a schematic diagram of the connection relationship structure of the first circular plate of the present invention.

[0031] In the figure:

[0032] 1. Liquid supply device; 2. First transport pipe; 3. Second transport pipe; 4. Air supply device; 5. Outer frame;

[0033] Auxiliary conveying mechanism: 601, first supporting plate; 602, first fixing plate; 603, first rotating column; 604, connecting rod; 605, first telescopic rod; 606, first return spring; 607, L-shaped knocking rod; 608, wedge-shaped push block; 609, first cylinder; 610, first circular hole; 611, auxiliary thin plate; 612, second return spring; 613, second circular hole; 614, electric telescopic rod; 615, auxiliary plate;

[0034] Auxiliary switching mechanism: 701, first circular plate; 702, second circular plate; 703, first slider; 704, first slide bar; 705, second slider; 706, fan-shaped baffle; 707, arc-shaped baffle; 708, second cylinder; 709, first nozzle; 710, second nozzle. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0037] Example

[0038] Please refer to Figures 2 to 7 As shown:

[0039] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a liquid delivery pipe for agricultural irrigation, comprising: a liquid supply device 1, a first transport pipe 2 is fixedly connected to the side of the liquid supply device 1, a second transport pipe 3 is fixedly connected to the side of the first transport pipe 2 away from the liquid supply device 1, an air supply device 4 is fixedly connected to the arc surface of the first transport pipe 2, an outer frame 5 is fixedly connected to the top surface of the air supply device 4, an auxiliary transport mechanism for removing dirt from the nozzle is arranged inside the first transport pipe 2, and an auxiliary switching mechanism for switching the spraying mode is arranged at the end of the second transport pipe 3 away from the first transport pipe 2;

[0040] The auxiliary conveying mechanism includes an electric telescopic rod 614, which is fixedly connected to the side of the air supply device 4, and an auxiliary thin plate 611 for adjusting the size of bubbles is fixedly connected to the side of the electric telescopic rod 614 away from the air supply device 4;

[0041] The auxiliary conveying mechanism also includes a first rotating column 603, which is rotatably connected to the inside of the first fixed plate 602. The first fixed plate 602 is rotatably connected to an L-shaped knocking rod 607 on one side close to the first rotating column 603. The L-shaped knocking rod 607 is fixedly connected to a wedge-shaped push block 608 on one side close to the first rotating column 603. The side of the air supply device 4 is fixedly connected to a first support plate 601. The first support plate 601 is fixedly connected to a connecting rod 604 on one side away from the first fixed plate 602. A first telescopic rod 605 is fixedly connected between the connecting rod 604 and the L-shaped knocking rod 607. The outer surface of the first telescopic rod 605 is sleeved with a first return spring 606.

[0042] A first cylinder 609 is fixedly connected to the interior of the first transport tube 2, a first circular hole 610 is opened inside the first cylinder 609, an auxiliary thin plate 611 is slidably connected to the interior of the first cylinder 609, a second return spring 612 is fixedly connected between one end of the auxiliary thin plate 611 away from the electric telescopic rod 614 and the first cylinder 609, and a second circular hole 613 is opened inside the auxiliary thin plate 611.

[0043] An auxiliary plate 615 is fixedly connected to the arc surface of the second transport pipe 3 .

[0044] Among them: the auxiliary plate 615 is a piezoelectric detection plate, which can detect whether there is a water leakage through the pressure change generated when water drops fall, and the auxiliary plate 615 is electrically connected to the driving device, and the driving device simultaneously drives the first rotating column 603 to rotate and the electric telescopic rod 614 to contract. In the initial state, the first circular hole 610 and the second circular hole 613 coincide with each other. When the auxiliary thin plate 611 is stretched, the first circular hole 610 and the second circular hole 613 are staggered. At this time, the air vent becomes smaller.

[0045] In the prior art, when adjusting different spray modes, it is necessary to remove the nozzle and replace it with another nozzle to adjust the spray mode. Each time the nozzle is replaced, it is necessary to perform disassembly and installation operations. This process is relatively complicated and requires a lot of time and effort. Frequent replacement of nozzles will interrupt the spraying operation, resulting in extended working hours and reduced overall work efficiency. Removing and installing the nozzles requires a certain amount of physical strength and skills, and frequent operations will increase the labor intensity of the staff. Repeated disassembly and installation can easily cause wear to the nozzles and connecting parts, and may even cause damage to the nozzles or loose connections, affecting the normal use and service life of the nozzles. Compared with the prior art, the first circular plate 701, the second circular plate 702, the first slider 703, the first slide bar 704, the second slider 705, the fan-shaped baffle 706 and the arc baffle 707 in the auxiliary switching mechanism cooperate with each other, so that the spraying mode can be switched without removing the nozzle. The method does not require the removal and installation of the nozzles, thus saving time and manpower for replacing the nozzles. The operator can quickly switch between different spraying modes through simple adjustments, thereby improving the continuity and efficiency of the work. Frequent removal and installation of the nozzles will cause wear of the nozzle interface and even damage the nozzles or connectors. The adjustable nozzles avoid such frequent disassembly and assembly operations, reduce equipment loss and maintenance costs, and can adjust the spraying mode at any time according to actual needs to adapt to different work scenes and task requirements. Whether large-area mist spraying or concentrated columnar spraying is required, it can be easily achieved, thereby improving the versatility and flexibility of the equipment. In addition, there is no need for the staff to manually rotate the second circular plate 702. The motor can be used for remote control to adjust the spraying mode, reducing the manual adjustment that causes faster wear of nozzle components, and also reducing the need for staff to directly contact the equipment in the field, thereby improving safety.

[0046] For further examples, please refer to Figure 1 and Figures 8 to 9 As shown:

[0047] The auxiliary switching mechanism includes a first circular plate 701, which is fixedly connected to the inner wall of the second transport pipe 3, and a second circular plate 702 for supporting the switching nozzle is rotatably connected to the side of the first circular plate 701;

[0048] The auxiliary switching mechanism also includes a first slider 703, which is slidably connected to the inside of the first circular plate 701. The second circular plate 702 is provided with an arc groove, and a first slide bar 704 is slidably connected in the arc groove. The first slide bar 704 is fixedly connected to one end of the first slider 703 close to the second circular plate 702.

[0049] One end of the first slide bar 704 away from the first slide block 703 is fixedly connected to the second slide block 705 , one end of the second slide block 705 is fixedly connected to a sector baffle 706 , and one end of the second slide block 705 away from the sector baffle 706 is fixedly connected to an arc baffle 707 .

[0050] A second cylinder 708 is fixedly connected to one side of the first circular plate 701 away from the second circular plate 702, a second nozzle 710 is fixedly connected to one end of the second cylinder 708 away from the first circular plate 701, a first nozzle 709 is fixedly connected to one end of the second transport pipe 3 away from the first transport pipe 2, and the second nozzle 710 is located at the center of the first nozzle 709.

[0051] The motor drives the second circular plate 702 to rotate clockwise and counterclockwise, the center points of the first circular plate 701 and the second circular plate 702 are both provided with slots, the second circular plate 702 is provided with an arc-shaped slot, and the first slide bar 704 is slidably connected in the arc-shaped slot, and the fan-shaped baffles 706 arranged on the circumference of the second circular plate 702 are adapted to the slots provided in the first circular plate 701 and the second circular plate 702, that is, when the second circular plate 702 rotates clockwise, the second slide bar 705 contracts inwardly to block the slots provided in the first circular plate 701 and the second circular plate 702, so that the liquid supplied by the liquid supply device 1 is discharged from the second circular plate 702. The liquid flows out from the gap between a circular plate 701 and the inner wall of the second transport tube 3. Since the circumferentially arranged arc-shaped baffles 707 are adapted to the size of the gap between the first circular plate 701 and the inner wall of the second transport tube 3, when the second circular plate 702 rotates counterclockwise, the second slider 705 expands outward, and the arc-shaped baffles 707 can just fill the gap between the first circular plate 701 and the inner wall of the second transport tube 3, so that the liquid supplied by the liquid supply device 1 flows out from the slots opened in the first circular plate 701 and the second circular plate 702, and the second nozzle 710 is a columnar spray head, and the first nozzle 709 is a mist spray head.

[0052] In the prior art, after long-term use, the irrigation water contains impurities such as silt, suspended matter, and organic matter. These impurities will gradually accumulate in the small channels of the nozzles under the action of water flow, causing blockage. In addition, certain chemical substances in the water, such as calcium and magnesium ions, will form precipitates under certain conditions. These precipitates may adhere to the inside of the nozzles, gradually accumulate and cause blockage. In the prior art, the nozzles are disassembled from the spray pipes to check whether the nozzle holes are blocked by foreign objects, and the nozzle holes are gently cleaned with fine needles or toothpicks. However, the fine needles or toothpicks may scratch or expand the nozzle holes, resulting in poor spray effect of the nozzles, or even failure to spray normally. For some sticky or Stubborn blockages cannot be completely removed by fine needles or toothpicks, thus affecting the normal use of the nozzle. During the cleaning process, the fine needle or toothpick itself will carry some tiny impurities, which may enter the nozzle hole and cause secondary blockage. Cleaning the nozzle hole with a fine needle or toothpick requires certain skills and patience. Improper operation may cause further damage to the nozzle. Cleaning the nozzle holes one by one is a tedious task that requires more time and effort. Compared with the prior art, the air supply device 4, the first cylinder 609, the first circular hole 610, the auxiliary thin plate 611, the second return spring 612, the second circular hole 613 and the electric telescopic rod 614 in the auxiliary conveying mechanism cooperate with each other to deliver the second transport hole to the nozzle hole. The air transported in the delivery pipe 3 forms bubbles. Cleaning by air bubbles is a non-contact method that does not directly contact the nozzle hole, thereby reducing the risk of physical damage to the nozzle hole. This can better protect the structural integrity of the nozzle and avoid scratching, enlarging the nozzle hole or changing the spray characteristics of the nozzle. When the bubbles flow in the delivery pipe, they can act more evenly on various parts of the nozzle, including the inside and around the nozzle hole. This comprehensive cleaning action can more effectively remove blockages and impurities and improve the cleaning effect, rather than just being limited to the surface of the nozzle hole. Unlike a fine needle or toothpick that may introduce new impurities, the air itself is relatively pure and will not bring additional pollution risks to the nozzle, which helps Maintain the cleanliness of the nozzle and reduce the possibility of secondary blockage. Since physical contact and scratching are avoided, this cleaning method causes less wear on the nozzle, helps to extend the service life of the nozzle, and reduces the frequency and cost of nozzle replacement. Air bubble cleaning uses the impact force and vibration effect of bubbles to remove dirt. Compared with relying on the flushing effect of water flow for cleaning, it saves more water resources and avoids waste of water resources. Air bubbles can operate at a lower pressure to reduce the pressure on the pipeline, while direct water flow usually requires a higher water pressure, which will cause additional pressure on the pipeline. Air can also remove residual liquid to avoid the production of water rust or dirt in the pipe for a long time, and avoid freezing when the temperature is relatively low in winter.

[0053] Everything in the above example works like this:

[0054] In the initial state: the first circular hole 610 and the second circular hole 613 overlap, the second slider 705 is in an expanded state, and the air supply device 4 supplies air into the first transport pipe 2 .

[0055] The following is the working process of the auxiliary switching mechanism switching the spraying mode:

[0056] When in use, since, in the initial state, the second slider 705 is in an expanded state, and the arc-shaped baffle 707 can just fill the gap between the first circular plate 701 and the inner wall of the second transport tube 3, the liquid supplied by the liquid supply device 1 flows out from the slots opened by the first circular plate 701 and the second circular plate 702. At this time, the liquid flows into the second cylinder 708 fixedly connected to the first circular plate 701, and then is discharged from the second nozzle 710. Since the second nozzle 710 is a columnar spray head, it is in a columnar spraying state at this time.

[0057] When the spraying mode needs to be switched, the second circular plate 702 is driven by the motor to rotate, that is, the motor drives the second circular plate 702 to rotate clockwise, the rotation of the second circular plate 702 drives the first slide bar 704 fixedly connected thereto to rotate, and the rotation of the first slide bar 704 drives the second slider 705, the fan-shaped baffle 706 and the arc baffle 707 fixed thereto to shrink inwards together. Since the center points of the first circular plate 701 and the second circular plate 702 are both provided with slots, and the fan-shaped baffles 706 arranged on the inner circumference of the second circular plate 702 are arranged with the arc baffles 707, the second circular plate 701 and the arc baffles 707 are arranged with the second circular plate 701 and the arc baffles 707. The slots provided in the first circular plate 701 and the second circular plate 702 are adapted to each other, that is, when the second circular plate 702 rotates clockwise, the second slider 705 contracts inwardly, so that the fan-shaped baffle 706 blocks the slots provided in the first circular plate 701 and the second circular plate 702, so that the liquid supplied by the liquid supply device 1 flows out from the gap between the first circular plate 701 and the inner wall of the second transport pipe 3, and then flows to the first nozzle 709 fixedly connected to the second transport pipe 3, and the first nozzle 709 is a mist spray head. On the contrary, when the second nozzle 710 needs to be used for spraying, the liquid supplied by the liquid supply device 1 flows out from the gap between the first circular plate 701 and the inner wall of the second transport pipe 3, and then flows to the first nozzle 709 fixedly connected to the second transport pipe 3. When the nozzle is turned off, the second circular plate 702 can be driven counterclockwise to rotate, thereby completing the switching of the spraying mode, and the spraying mode can be switched without removing the nozzle, and the nozzle does not need to be removed or installed, which saves time and manpower for replacing the nozzle. The operator can quickly switch between different spraying modes through simple adjustments, thereby improving the continuity and efficiency of the work. Frequent removal and installation of the nozzle will cause wear of the nozzle interface and even damage the nozzle or the connector. The adjustable nozzle avoids such frequent disassembly and assembly operations, reduces the loss and maintenance cost of the equipment, and can adjust the spraying mode at any time according to actual needs to adapt to different work scenes and task requirements. Whether it is large-area mist spraying or concentrated columnar spraying, it can be easily achieved, which improves the versatility and flexibility of the equipment. In addition, there is no need for the staff to manually rotate the second circular plate 702, and the motor can be used for remote control to adjust the spraying mode, reducing the manual adjustment that causes faster wear of the nozzle components, and also reducing the need for the staff to directly contact the equipment in the field, thereby improving safety.

[0058] Please refer to the above working process Figure 1 and Figures 8 to 9 .

[0059] The following is the working process of the auxiliary conveying mechanism to clean the clogged nozzle:

[0060] When in use, the liquid supply device 1 supplies liquid so that the liquid flows to the first transport pipe 2. Since the first cylinder 609 is provided with a first circular hole 610, when the gas supply device 4 supplies gas to the first cylinder 609, due to the collision between gas molecules, the air sprayed into the water will form a gas cluster. When the gas cluster enters the water, the surface tension of the water will make the water molecules closely connected to form a relatively dense water molecule network. The gas molecules will be surrounded by this water molecule network to form a bubble wrapped by water molecules, thereby generating bubbles from the first circular hole 610. When the first nozzle 709 or the second nozzle 710 leaks due to blockage, since the auxiliary plate 615 is a piezoelectric detection plate, it can detect whether there is a leak through the pressure change generated when the water droplets fall. When water drops onto the surface of the auxiliary plate 615, after water leakage is detected, the external controller controls the driving device to drive the first rotating column 603 to rotate and the electric telescopic rod 614 to contract. The contraction of the electric telescopic rod 614 can drive the auxiliary thin plate 611 to stretch outward. Since the auxiliary thin plate 611 is provided with a second circular hole 613, and in the initial state, the first circular hole 610 coincides with the second circular hole 613, when the auxiliary thin plate 611 is pulled, the second circular hole 613 and the auxiliary thin plate 611 will be offset, so that the circular hole for generating bubbles becomes smaller, thereby making the bubbles denser, and the bubbles can be evenly distributed in the entire pipeline. Because the space near the pores of liquid molecules becomes smaller, the collisions between molecules become more frequent, thereby generating violent motion, and After vigorous movement, the bubbles will hit the inner surfaces of the second transport pipe 3, the first nozzle 709 and the second nozzle 710. Cleaning by air bubbles is a non-contact method that does not directly contact the nozzle hole, thereby reducing the risk of physical damage to the nozzle hole. This can better protect the structural integrity of the nozzle, avoid scratching, enlarging the nozzle hole or changing the spray characteristics of the nozzle. When the bubbles flow in the liquid delivery pipe, they can act more evenly on various parts of the nozzle, including the inside and around the nozzle hole. This comprehensive cleaning action can more effectively remove blockages and impurities and improve the cleaning effect, rather than just being limited to the surface of the nozzle hole. Unlike a fine needle or toothpick that may introduce new impurities, the air itself is relatively pure and will not cause damage to the nozzle. The additional risk of contamination helps maintain the cleanliness of the nozzle and reduce the possibility of secondary blockage. Since physical contact and scratching are avoided, this cleaning method causes less wear on the nozzle, which helps to extend the service life of the nozzle and reduce the frequency and cost of replacing the nozzle. Air bubble cleaning uses the impact force and vibration effect of bubbles to remove dirt. Compared with cleaning by flushing water, it saves more water resources and avoids waste of water resources. Air bubbles can operate at a lower pressure and reduce the pressure on the pipeline. Direct water flow usually requires a higher water pressure, which will cause additional pressure on the pipeline. Air can also remove residual liquid to avoid the production of water rust or dirt in the pipe for a long time, and avoid freezing when the temperature is relatively low in winter.

[0061] At the same time, the motor drives the first rotating column 603 to rotate, and the rotation of the first rotating column 603 can push the wedge-shaped push block 608 to move upward. The upward movement of the wedge-shaped push block 608 drives the L-shaped knocking rod 607 fixedly connected thereto to move upward, thereby squeezing the first return spring 606 and the first telescopic rod 605. When the first rotating column 603 rotates to a position where it no longer pushes the wedge-shaped push block 608 to move upward, the squeezed first return spring 606 is released, driving the squeezed and contracted first telescopic rod 605 to extend together, pushing the L-shaped knocking rod 607 to move downward, thereby reciprocating the second moving column 603. The delivery pipe 3 is knocked. While air is being delivered to the delivery spray pipe, the pipe is lightly knocked. The vibration generated by the knocking can assist the bubbles to more effectively remove stubborn dirt. The vibration can help the bubbles to enter the tiny gaps of the nozzle more deeply. The slight knocking can loosen the deposits on the pipe wall, making it easier for the bubbles to be carried away by the bubbles, which helps to remove the minerals and organic matter accumulated over a long period of time. The vibration generated by the knocking can help the bubbles to be more evenly distributed in the pipe, ensuring that the cleaning effect covers the entire pipe system. The vibration caused by the knocking can increase the turbulence of the water flow, and the turbulence helps to better remove the dirt on the inner wall of the pipe.

[0062] Please refer to the above working process Figures 2 to 7 .

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid delivery pipe for agricultural irrigation, comprising: A liquid supply device (1), wherein a first transport pipe (2) is fixedly connected to the side of the liquid supply device (1), a second transport pipe (3) is fixedly connected to the side of the first transport pipe (2) away from the liquid supply device (1), an air supply device (4) is fixedly connected to the arc surface of the first transport pipe (2), and an outer frame (5) is fixedly connected to the top surface of the air supply device (4), characterized in that an auxiliary transport mechanism for removing dirt from the nozzle is provided inside the first transport pipe (2), and an auxiliary switching mechanism for switching the spraying mode is provided at the end of the second transport pipe (3) away from the first transport pipe (2); The auxiliary conveying mechanism comprises an electric telescopic rod (614), the electric telescopic rod (614) being fixedly connected to a side of the air supply device (4), and an auxiliary thin plate (611) for adjusting the size of bubbles being fixedly connected to a side of the electric telescopic rod (614) away from the air supply device (4); The auxiliary switching mechanism comprises a first circular plate (701), the first circular plate (701) is fixedly connected to the inner wall of the second transport pipe (3), and the side surface of the first circular plate (701) is rotatably connected to a second circular plate (702) for supporting the switching nozzle.

2. A liquid delivery pipe for agricultural irrigation according to claim 1, characterized in that: The auxiliary conveying mechanism also includes a first rotating column (603), the first rotating column (603) is rotatably connected to the inside of the first fixed plate (602), the first fixed plate (602) is rotatably connected to an L-shaped knocking rod (607) on a side close to the first rotating column (603), the L-shaped knocking rod (607) is fixedly connected to a wedge-shaped push block (608) on a side close to the first rotating column (603), the side of the air supply device (4) is fixedly connected to a first support plate (601), the first support plate (601) is fixedly connected to a connecting rod (604) on a side away from the first fixed plate (602), a first telescopic rod (605) is fixedly connected between the connecting rod (604) and the L-shaped knocking rod (607), and the outer surface of the first telescopic rod (605) is sleeved with a first return spring (606).

3. A liquid delivery pipe for agricultural irrigation according to claim 2, characterized in that: A first cylinder (609) is fixedly connected to the interior of the first transport tube (2), a first circular hole (610) is opened in the interior of the first cylinder (609), an auxiliary thin plate (611) is slidably connected to the interior of the first cylinder (609), a second return spring (612) is fixedly connected between one end of the auxiliary thin plate (611) away from the electric telescopic rod (614) and the first cylinder (609), and a second circular hole (613) is opened in the interior of the auxiliary thin plate (611).

4. The liquid delivery pipe for agricultural irrigation according to claim 1, characterized in that: The auxiliary switching mechanism also includes a first slider (703), the first slider (703) is slidably connected to the inside of the first circular plate (701), the second circular plate (702) is provided with an arc groove, and a first sliding rod (704) is slidably connected in the arc groove, and the first sliding rod (704) is fixedly connected to one end of the first slider (703) close to the second circular plate (702).

5. A liquid delivery pipe for agricultural irrigation according to claim 4, characterized in that: One end of the first sliding rod (704) away from the first sliding block (703) is fixedly connected to the second sliding block (705), one end of the second sliding block (705) is fixedly connected to a fan-shaped baffle (706), and one end of the second sliding block (705) away from the fan-shaped baffle (706) is fixedly connected to an arc-shaped baffle (707).

6. A liquid delivery pipe for agricultural irrigation according to claim 5, characterized in that: A second cylinder (708) is fixedly connected to a surface of the first circular plate (701) away from the second circular plate (702); an end of the second cylinder (708) away from the first circular plate (701) is fixedly connected to a second nozzle (710); an end of the second transport pipe (3) away from the first transport pipe (2) is fixedly connected to the first nozzle (709); and the second nozzle (710) is located at the center of the first nozzle (709).

7. A liquid delivery pipe for agricultural irrigation according to claim 3, characterized in that: An auxiliary plate (615) is fixedly connected to the arc-shaped surface of the second transport pipe (3).

8. The liquid delivery pipe for agricultural irrigation according to claim 5, characterized in that: The first sliding block (703) is slidably adapted to the first circular plate (701).

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