An ecological agricultural circulation drip irrigation system

Abstract

The present invention relates to the field of irrigation technology, and in particular to an ecological agricultural circulation drip irrigation system, comprising a water pump and a circulation device; a main pipeline is arranged on the output end of the water pump, and the main pipeline is communicated with the water pump; a plurality of branch pipelines are arranged, and the branch pipelines are evenly arranged on one side of the main pipeline, and the branch pipelines and the main pipeline are communicated with each other, and a plurality of extension sleeves are vertically arranged at the lower part of the branch pipeline, and the extension sleeves are evenly distributed on the branch pipeline along the extension direction of the branch pipeline; a drip irrigation head is arranged in the extension sleeve for reciprocating sliding along the extension direction of the extension sleeve, and the output end of the drip irrigation head is vertically downward, and a slope is arranged on the upper part of the drip irrigation head, and the inclined surface of the slope faces the flow direction of the water flow in the branch pipeline; a first driving device is arranged on the branch pipeline, and the water flow flowing in the branch pipeline is the driving source of the first driving device; and a lifting device is arranged on the upper part of the drip irrigation head. The present invention ensures that the drip irrigation head will not be blocked by impurities even if it is used for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation, and in particular to an ecological agricultural circulating drip irrigation system. Background Art

[0002] Agricultural irrigation is crucial to the growth of crops, and drip irrigation, as a new type of irrigation method, has significant advantages. It delivers water and nutrients to the soil in the root zone of crops evenly and slowly in the form of drops through a precise piping system and sprinklers installed on capillary tubes according to the specific water requirements of crops. This irrigation method greatly reduces water evaporation losses, avoids the formation of surface runoff, and has almost no deep leakage problems, thereby effectively saving irrigation water and ensuring efficient utilization of irrigation water.

[0003] However, the existing drip irrigation system has shortcomings in the circulation operation of water. Due to the relatively slow flow rate of drip irrigation, water is easily retained in the drip irrigation pipe. Especially when drip irrigation pesticides, long-term retention often leads to precipitation of pesticide components, which not only easily blocks the drip irrigation pipe, but also reduces the use effect of pesticides. Therefore, optimizing the circulation operation function of drip irrigation equipment and improving the fluidity of water are of great significance to ensure the effect of drip irrigation and the healthy growth of crops.

[0004] Chinese patent application CN112471107A discloses an agricultural production circulating drip irrigation equipment, which includes a water tank, a water pump, a telescopic pipe, a drip irrigation mechanism and a circulation mechanism. A water pump is fixed on one side wall of the water tank. The water inlet of the water pump is connected to the inside of the water tank through a pipeline. The water outlet of the water pump is connected to the telescopic pipe. The other end of the telescopic pipe is connected to the shunt pipe in the drip irrigation mechanism. Several drip irrigation pipes in the drip irrigation mechanism are equidistantly inserted and fixed on the collecting pipe in the circulation mechanism; the above-mentioned drip irrigation mechanism also includes a nozzle, a delivery pipe, a fixed cover, a motor, a worm and a worm gear. The right ends of several drip irrigation pipes are equidistantly inserted and fixed on the shunt pipe. Delivery pipes are equidistantly inserted on the upper side of the drip irrigation pipe. The upper end of the delivery pipe is inserted in the lower side of the nozzle and is connected to the pipe on the lower side of the nozzle through a sealing bearing. The nozzle is rotated, and the upper side of the nozzle passes through the upper side wall of the fixed cover and is suspended on the outer side of the fixed cover. The fixed cover is fixed on the outer ring wall of the drip irrigation pipe. A motor is fixed on the inner wall of the fixed cover, and a worm is fixed on the motor. The other end of the worm is screwed to the fixed cover through a bearing, and a worm wheel is meshed on one side of the worm. The worm wheel is sleeved on the pipe on the lower side of the nozzle; the above-mentioned circulation mechanism also includes a connecting pipe, a discharge pipe, a limit plate and a bracket. One end of the collecting pipe is a closed structure, and a connecting pipe is inserted and fixed on the other end of the collecting pipe. The other end of the connecting pipe is connected to the discharge pipe, and the discharge pipe is vertically arranged with the connecting pipe. After the upper end of the discharge pipe passes through the limit plate, it is inserted into the inside of the water tank. The lower side of the limit plate is in contact with the bracket. The bracket is arranged in a "U" shape and is fixed on the outer wall of one side of the water tank.

[0005] The above scheme avoids a certain degree of precipitation by keeping the water in a flowing state, but this can only prolong the precipitation time of impurities, that is, the precipitation of impurities will still occur in the pipeline. This is because the impurities will gradually sink under the influence of gravity. To prevent the sinking of impurities by increasing the flow rate of the water flow, it is necessary to make the flow rate of the water flow higher, but increasing the flow rate can only change the position where the impurities sink. As long as the speed is fast enough, the impurities can be guaranteed to return to the water tank after a circle. However, the load of the water pump is large, and this requirement cannot be achieved when the pipeline is laid too long. At the same time, in order to ensure normal drip irrigation, it is necessary to ensure that the upper part of the drip irrigation head cannot be blocked by impurities. Therefore, it is of utmost importance to avoid the accumulation of sediment on the upper part of the drip irrigation head. Summary of the invention

[0006] In view of the above problems, an ecological agricultural circulation drip irrigation system is provided. A water pump pumps water into a main pipeline, and then the main pipeline supplies water to each branch pipeline respectively. After the water flows in the branch pipeline, the first driving device is started, and the first driving device drives the lifting device to operate. The lifting device can drive the drip irrigation head to move back and forth along the extension direction of the extension sleeve. When the drip irrigation head is at the lowest position, the output end of the drip irrigation head protrudes from the bottom of the extension sleeve, and the slope on the upper part of the drip irrigation head is located in the extension sleeve. The water flow in the branch pipeline cannot impact the slope. As the water flow continues to flow, the lifting device drives the drip irrigation head to rise along the length direction of the extension sleeve, and the output end of the drip irrigation head retracts into the extension sleeve. At the same time, the slope on the upper part of the drip irrigation head protrudes into the branch pipeline, and the slope protruding into the branch pipeline collides with the water flow in the branch pipeline. Impurities deposited on the slope will be washed away by the flowing water, ensuring that the drip irrigation head will not be blocked by impurities even if it is used for a long time.

[0007] In order to solve the problems of the prior art, the present invention provides an ecological agricultural circulation drip irrigation system, comprising a water pump and a circulation device; the circulation device comprises a main pipeline, a branch pipeline, a drip irrigation head, a first driving device and a lifting device; the main pipeline is arranged on the output end of the water pump, and the main pipeline is communicated with the water pump; a plurality of branch pipelines are arranged, and the branch pipelines are evenly arranged on one side of the main pipeline, and the branch pipelines and the main pipeline are communicated with each other, and a plurality of extension sleeves are vertically arranged at the lower part of the branch pipeline, and the extension sleeves are evenly distributed on the branch pipeline along the extension direction of the branch pipeline; the drip irrigation head is arranged in the extension sleeve for reciprocating sliding along the extension direction of the extension sleeve, the output end of the drip irrigation head is vertically downward, and a slope is arranged on the upper part of the drip irrigation head, and the inclined surface of the slope faces the flow direction of the water flow in the branch pipeline; the first driving device is arranged on the branch pipeline, and the water flow flowing in the branch pipeline is the driving source of the first driving device; the lifting device is arranged on the upper part of the drip irrigation head, and the lifting device is used to drive the drip irrigation head to slide along the extension direction of the extension sleeve, and the first driving device drives the lifting device to operate.

[0008] Preferably, the first driving device includes a driving shell, a driving shaft and blades; the driving shell is arranged on the branch pipeline, and a circular cavity is stored inside the driving shell; the driving shaft is rotatably arranged in the driving shell along the axis of the circular cavity, and the driving shaft is connected to the lifting device; a plurality of blades are arranged, and the blades are evenly fixed on the side wall of the driving shaft around the axis of the driving shaft.

[0009] Preferably, the lifting device includes a lifting rod, a lifting block, an engaging block and a rotating disk; the lifting rod is vertically fixedly arranged on the upper part of the drip irrigation head; the lifting block is fixedly arranged on the upper part of the lifting rod, and a guide sleeve is vertically arranged on the upper part of the branch pipeline, the guide sleeve is communicated with the branch pipeline, and the lifting block is slidably arranged in the guide sleeve along the length direction of the guide sleeve; the engaging block is fixedly arranged on the side wall of the lifting block; the rotating disk is fixedly arranged on the end of the driving shaft along the axis of the driving shaft, and a plurality of engaging teeth are fixedly arranged around the rotating disk, the engaging teeth are arranged around the axis of the rotating disk, and the peripheral wall of the rotating disk is divided into two parts, one part is provided with engaging teeth, and the other part is not provided with engaging teeth, and the engaging teeth and the engaging block are engaged with each other.

[0010] Preferably, the lifting device also includes a reset assisting device, which includes a fixed frame and a first spring; the fixed frame is arranged above the lifting rod, and there is a first gap between the fixed frame and the upper part of the lifting rod; the first spring is arranged in the first gap along the axis of the lifting rod, and the two ends of the first spring are fixedly connected to the fixed frame and the upper part of the lifting rod respectively.

[0011] Preferably, the circulation device also includes a drip rate segmented adjustment device, which includes a humidity detection device, a boosting device and a pressure maintaining device; the humidity detection device is arranged on one side of the branch pipeline, the humidity detection device is used to detect soil moisture, and a controller is arranged on one side of the branch pipeline; the boosting device is arranged on the branch pipeline on the side of the drip irrigation head away from the main pipeline, and the humidity detection device controls the operation of the boosting device through the controller; the pressure maintaining device is arranged on the branch pipeline on the side of the drip irrigation head close to the main pipeline.

[0012] Preferably, the boosting device includes a sphere, a second spring, a limiting ring, a sliding tube and a second driving device; the limiting ring is fixedly arranged on the inner wall of the branch pipeline along the axis of the branch pipeline; the sphere is movably arranged on the side of the limiting ring away from the main pipeline along the extension direction of the branch pipeline; an open section is provided on the side of the branch pipeline away from the main pipeline, and the sliding tube is slidably arranged on the open section along the axis of the branch pipeline, the sliding tube and the branch pipeline are slidably matched, and a second gap exists between the sliding tube and the limiting ring; the second spring is arranged in the second gap along the axis of the limiting ring, and the two ends of the second spring are respectively fixedly connected to the limiting ring and the sliding tube; the second driving device is arranged on one side of the sliding tube, and the second driving device drives the sliding tube to slide.

[0013] Preferably, the second driving device includes a rotary driver, a gear, a gear ring, a rotating sleeve and a limit assembly; the rotary driver is arranged on the outside of the branch pipeline; the gear is fixedly arranged on the output end of the rotary driver; the gear ring is rotatably arranged on the periphery of the sliding tube along the axis of the sliding tube, and the gear ring and the gear are meshed with each other; the rotating sleeve is fixedly arranged on the gear ring along the axis of the gear ring, a first thread groove is provided on the inner side of the rotating sleeve, a second thread groove is provided on the outer side of the sliding tube, and the rotating sleeve and the sliding tube are threadedly matched; the limit assembly is arranged on the sliding sleeve, and the limit assembly prevents the sliding sleeve from rotating around its own axis.

[0014] Preferably, the limit assembly includes a limit block and a limit groove; the limit block is fixedly arranged on the inner wall of the branch pipeline along the extension direction of the branch pipeline; the limit groove is opened on the sliding tube along the extension direction of the branch pipeline, and the limit block and the limit groove are slidably matched.

[0015] Preferably, the pressure maintaining device includes an overflow valve and a pressure sensor; the overflow valve is arranged at one end of the branch pipeline close to the main pipeline, and the water flow of the main pipeline flows into the branch pipeline through the overflow valve; the pressure sensor is arranged in the branch pipeline.

[0016] Preferably, the humidity detection device includes a mounting frame and a humidity sensor; the mounting frame is fixedly arranged on one side of the bracket; and the humidity sensor is arranged at the lower part of the mounting frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a main pipeline, a branch pipeline, a drip irrigation head, a first driving device and a lifting device. A water pump pumps water into the main pipeline, and then the main pipeline supplies water to each branch pipeline respectively. After the water flows in the branch pipeline, the first driving device is started, and the first driving device drives the lifting device to operate. The lifting device can drive the drip irrigation head to move back and forth along the extension direction of the extension sleeve. When the drip irrigation head is at the lowest position, the output end of the drip irrigation head protrudes from the bottom of the extension sleeve, and the slope on the upper part of the drip irrigation head is located in the extension sleeve. The water flow in the branch pipeline cannot impact the slope. As the water flow continues to flow, the lifting device drives the drip irrigation head to rise along the length direction of the extension sleeve, and the output end of the drip irrigation head retracts into the extension sleeve. At the same time, the slope on the upper part of the drip irrigation head protrudes into the branch pipeline, and the slope protruding into the branch pipeline collides with the water flow flowing in the branch pipeline. Impurities deposited on the slope will be washed away by the flowing water, thereby ensuring that the drip irrigation head will not be blocked by impurities even if it is used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an ecological agricultural circulating drip irrigation system.

[0020] Figure 2 It is a combined three-dimensional schematic diagram of an ecological agricultural circulating drip irrigation system after removing the water pump and the main pipeline.

[0021] Figure 3 It is a single-body three-dimensional schematic diagram of an ecological agricultural circulating drip irrigation system after removing the water pump and the main pipeline.

[0022] Figure 4 It is an ecological agricultural circulation drip irrigation system Figure 3 A local enlarged schematic diagram of point A in the middle.

[0023] Figure 5 It is a sectional stereoscopic schematic diagram of an ecological agricultural circulating drip irrigation system with the water pump and the main pipe removed.

[0024] Figure 6 It is an ecological agricultural circulation drip irrigation system Figure 5 A local enlarged schematic diagram of point B in the middle.

[0025] Figure 7 It is an ecological agricultural circulation drip irrigation system Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0026] Figure 8 It is a side view of an ecological agricultural circulating drip irrigation system after removing the water pump, drip rate segmentation adjustment device and main pipe.

[0027] Fig. 9 It is an ecological agricultural circulation drip irrigation system Figure 8 A local enlarged schematic diagram of the DD in the middle.

[0028] Fig.10 The invention is a three-dimensional schematic diagram of a drip rate segmented regulating device of an ecological agricultural circulating drip irrigation system with a rotating sleeve removed.

[0029] The numbers in the figure are:

[0030] 1-water pump; 2-circulation device; 21-main pipeline; 22-branch pipeline; 221-extension sleeve; 23-drip head; 24-first drive device; 241-drive shell; 242-drive shaft; 243-blade; 25-lifting device; 251-lifting rod; 252-lifting block; 2521-guide sleeve; 253-engaging block; 254-rotating disk; 255-reset auxiliary device; 2551-fixed frame; 2552-first spring ;26-drip rate segmented adjustment device;261-humidity detection device;2611-mounting frame;2612-humidity sensor;262-boosting device;2621-sphere;2622-second spring;2623-limiting ring;2624-sliding tube;2625-rotating drive;2626-gear;2627-toothed ring;2628-rotating sleeve;2629-limiting block;263-pressure maintaining device;2631-overflow valve. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1 and Figure 2 : An ecological agricultural circulation drip irrigation system, comprising a water pump 1 and a circulation device 2; the circulation device 2 comprises a main pipeline 21, a branch pipeline 22, a drip irrigation head 23, a first driving device 24 and a lifting device 25; the main pipeline 21 is arranged on the output end of the water pump 1, and the main pipeline 21 is connected to the water pump 1; a plurality of branch pipelines 22 are arranged, and the branch pipelines 22 are evenly arranged on one side of the main pipeline 21, and the branch pipelines 22 and the main pipeline 21 are connected to each other, and a plurality of extension sleeves 221 are vertically arranged at the lower part of the branch pipeline 22, and the extension sleeves 221 are evenly distributed on the branch pipeline 22 along the extension direction of the branch pipeline 22; The drip irrigation head 23 is arranged in the extension sleeve 221 to slide back and forth along the extension direction of the extension sleeve 221. The output end of the drip irrigation head 23 is vertically downward. A slope is arranged on the upper part of the drip irrigation head 23, and the inclined surface of the slope faces the flow direction of the water flow in the branch pipe 22; the first driving device 24 is arranged on the branch pipe 22, and the water flow flowing in the branch pipe 22 is the driving source of the first driving device 24; the lifting device 25 is arranged on the upper part of the drip irrigation head 23, and the lifting device 25 is used to drive the drip irrigation head 23 to slide along the extension direction of the extension sleeve 221, and the first driving device 24 drives the lifting device 25 to operate.

[0033] The water pump 1 pumps water into the main pipeline 21, and then the main pipeline 21 supplies water to each branch pipeline 22 respectively. After the water flows in the branch pipeline 22, the first driving device 24 is started, and the first driving device 24 drives the lifting device 25 to operate. The lifting device 25 can drive the drip irrigation head 23 to move back and forth along the extension direction of the extension sleeve 221. When the drip irrigation head 23 is at the lowest position, the output end of the drip irrigation head 23 protrudes from the bottom of the extension sleeve 221, and the slope of the upper part of the drip irrigation head 23 is located in the extension sleeve 221. The water flow in the branch pipeline 22 cannot impact the slope. As the water flow continues to flow, the lifting device 25 is lifted. The device 25 drives the drip irrigation head 23 to rise along the length direction of the extension sleeve 221, and the output end of the drip irrigation head 23 is retracted into the extension sleeve 221. At the same time, the slope of the upper part of the drip irrigation head 23 is inserted into the branch pipe 22. The slope inserted into the branch pipe 22 collides with the water flowing in the branch pipe 22, and the impurities deposited on the slope will be washed away by the flowing water. If the drip irrigation head 23 is fixedly arranged at the lower part of the branch pipe 22, that is, the drip irrigation head 23 cannot reciprocate along the extension direction of the extension sleeve 221, and the slope of the upper part of the drip irrigation head 23 is inserted into the branch pipe 22, although the accumulation of impurities on the upper part of the drip irrigation head 23 can be avoided Too many impurities, but the upper part of the drip irrigation head 23 that penetrates into the branch pipe 22 will change the direction of the water flow in the branch pipe 22. The slope on the upper part of the drip irrigation head 23 has a guiding effect on the water flow. When the water flows through the drip irrigation head 23, under the guidance of the slope on the upper part of the drip irrigation head 23, the water flow will impact the upper part of the branch pipe 22. After long-term use, the side wall of the branch pipe 22 above the drip irrigation head 23 will inevitably be damaged by the impact of the water flow. When the pressure in the branch pipe 22 rises, the position where the branch pipe 22 is impacted by the water flow is very likely to burst. In order to avoid the above situation, the drip irrigation head 23 is set along The extension sleeve 221 is in a state of reciprocating movement in the extension direction. In this way, the drip irrigation head 23 can only rise intermittently under the drive of the lifting device 25. When the drip irrigation head 23 penetrates into the branch pipe 22, the flow direction of the water in the branch pipe 22 will be disturbed. However, when the drip irrigation head 23 descends, the flow direction of the water in the branch pipe 22 will be restored. In this way, not only the upper part of the drip irrigation head 23 is not easily blocked by impurities, but also the slope of the upper part of the drip irrigation head 23 is prevented from redirecting the water flow for a long time, and the side wall of the branch pipe 22 is avoided from being impacted by the water flow for a long time, which ensures that the drip irrigation head 23 will not be blocked by impurities even if it is used for a long time.

[0034] Reference Figure 1 and Fig. 9The first driving device 24 includes a driving shell 241, a driving shaft 242 and blades 243; the driving shell 241 is arranged on the branch pipeline 22, and a circular cavity is stored inside the driving shell 241; the driving shaft 242 is rotatably arranged in the driving shell 241 along the axis of the circular cavity, and the driving shaft 242 is connected to the lifting device 25; a plurality of blades 243 are arranged, and the blades 243 are evenly fixed on the side wall of the driving shaft 242 around the axis of the driving shaft 242.

[0035] When water flows through the branch pipe 22, water also flows through the driving shell 241 on the branch pipe 22. The flowing water pushes the blades 243, so that the blades 243 fixed on the peripheral wall of the driving shaft 242 drive the driving shaft 242 to rotate. The driving shaft 242 is connected to the lifting device 25, so that the lifting device 25 can drive the drip irrigation head 23 to reciprocate.

[0036] Reference Figure 1 , Figure 3 and Figure 6 The lifting device 25 includes a lifting rod 251, a lifting block 252, an engagement block 253 and a rotating disk 254; the lifting rod 251 is vertically fixedly arranged on the upper part of the drip irrigation head 23; the lifting block 252 is fixedly arranged on the upper part of the lifting rod 251, and a guide sleeve 2521 is vertically arranged on the upper part of the branch pipeline 22, and the guide sleeve 2521 is communicated with the branch pipeline 22, and the lifting block 252 is slidably arranged in the guide sleeve 2521 along the length direction of the guide sleeve 2521; the engagement block 253 is fixedly arranged on the side wall of the lifting block 252; the rotating disk 254 is fixedly arranged on the end of the driving shaft 242 along the axis of the driving shaft 242, and a plurality of meshing teeth are fixedly arranged around the rotating disk 254, and the meshing teeth are arranged around the axis of the rotating disk 254. The peripheral wall of the rotating disk 254 is divided into two parts, one part is provided with a meshing tooth part, and the other part is not provided with a meshing tooth part, and the meshing teeth and the meshing block 253 are meshed with each other.

[0037] When the water flows through the branch pipe in turn, the first driving device 24 arranged on the branch pipe 22 is driven, and the driving shaft 242 rotates and drives the rotating disk 254 to rotate, and the meshing teeth arranged on the peripheral side of the rotating disk 254 mesh with the meshing block 253, so that the rotating disk 254 can drive the meshing block 253 to slide along the extension direction of the guide sleeve 2521 through the meshing teeth, and the axis of the guide sleeve 2521 is collinear with the axis of the extension sleeve 221, so that the meshing block 253 drives the lifting block 252 to move synchronously, and the lifting block 252 drives the drip irrigation head 23 to rise synchronously through the lifting rod 251, so that the drip irrigation head 23 can continue to rise, and when the meshing teeth portion arranged on the peripheral wall of the rotating disk 254 completely passes through the meshing block 253, the rotating disk 254 facilitates the meshing block 253 to disengage, so that the drip irrigation head 23 can be reset.

[0038] Reference Figure 3and Figure 6 : The lifting device 25 also includes a reset auxiliary device 255, which includes a fixed frame 2551 and a first spring 2552; the fixed frame 2551 is arranged above the lifting rod 251, and there is a first gap between the fixed frame 2551 and the upper part of the lifting rod 251; the first spring 2552 is arranged in the first gap along the axis of the lifting rod 251, and the two ends of the first spring 2552 are fixedly connected to the fixed frame 2551 and the upper part of the lifting rod 251 respectively.

[0039] After the drip irrigation head 23 rises, the slope on the upper part of the drip irrigation head 23 is impacted by the water flow in the branch pipe 22, and the drip irrigation head 23 cannot be guaranteed to be completely lowered only by its own gravity. Therefore, a fixing frame 2551 and a first spring 2552 are arranged on the upper part of the lifting rod 251. When the lifting rod 251 is lifted, the drip irrigation head 23 arranged at the lower part of the lifting rod 251 will also rise synchronously, and the first gap between the lifting rod 251 and the fixing frame 2551 will gradually narrow, and the first spring 2552 arranged in the first gap will also be continuously compressed. When the meshing tooth portion arranged on the peripheral wall of the rotating disk 254 completely passes through the meshing block 253, the rotating disk 254 and the meshing block 253 will be disengaged, so that the elastic force of the first spring 2552 will act on the lifting rod 251, and the first spring 2552 will make the lifting rod 251 descend and reset.

[0040] Reference Figure 1-Figure 3 and Fig. 9 : The circulation device 2 also includes a dripping rate segmented adjustment device 26, which includes a humidity detection device 261, a boosting device 262 and a pressure maintaining device 263; the humidity detection device 261 is arranged on one side of the branch pipe 22, and the humidity detection device 261 is used to detect soil humidity. A controller is arranged on one side of the branch pipe 22; the boosting device 262 is arranged on the branch pipe 22 on the side of the drip irrigation head 23 away from the main pipe 21, and the humidity detection device 261 controls the operation of the boosting device 262 through the controller; the pressure maintaining device 263 is arranged on the branch pipe 22 on the side of the drip irrigation head 23 close to the main pipe 21.

[0041] When the humidity detection device 261 detects that the humidity in the soil is too low, the humidity detection device 261 controls the boosting device 262 to increase the pressure through the controller. If the water pressure in the branch pipe 22 where the boosting device 262 is located increases, the water pressure in the main pipe 21 will change after the water pressure in one of the branch pipes 22 increases. In order to ensure the stability of the water pressure in other branch pipes 22, the water pressure in the adjacent branch pipes 22 is maintained by the pressure maintaining device 263. In this way, the water output of the drip irrigation heads 23 in different branch pipes 22 can be adjusted without affecting each other.

[0042] Reference Figure 3 and Figure 6 The boosting device 262 includes a sphere 2621, a second spring 2622, a limiting ring 2623, a sliding tube 2624 and a second driving device; the limiting ring 2623 is fixedly arranged on the inner wall of the branch pipeline 22 along the axis of the branch pipeline 22; the sphere 2621 is movably arranged on the side of the limiting ring 2623 away from the main pipeline 21 along the extension direction of the branch pipeline 22; an open section is provided on the side of the branch pipeline 22 away from the main pipeline 21, and the sliding tube 2624 is slidably arranged on the open section along the axis of the branch pipeline 22, the sliding tube 2624 is slidably matched with the branch pipeline 22, and a second gap exists between the sliding tube 2624 and the limiting ring 2623; the second spring 2622 is arranged in the second gap along the axis of the limiting ring 2623, and the two ends of the second spring 2622 are fixedly connected with the limiting ring 2623 and the sliding tube 2624 respectively; the second driving device is arranged on one side of the sliding tube 2624, and the second driving device drives the sliding tube 2624 to slide.

[0043] When the water output of the drip irrigation head 23 in the branch pipeline 22 needs to be adjusted, the second driving device is started, and the second driving device drives the sliding tube 2624 to move the sliding tube 2624 toward the limiting ring 2623. The sliding tube 2624 compresses the second spring 2622, and the second spring 2622 presses the ball 2621 tightly against the limiting ring 2623. As the sliding tube 2624 continues to approach the limiting ring 2623, the elastic force of the second spring 2622 will continue to increase, so that the pressure at the drip irrigation head 23 in the branch pipeline 22 will increase.

[0044] Reference Figure 4 The second driving device includes a rotary driver 2625, a gear 2626, a gear ring 2627, a rotating sleeve 2628 and a limiting assembly; the rotary driver 2625 is arranged on the outside of the branch pipe 22; the gear 2626 is fixedly arranged on the output end of the rotary driver 2625; the gear ring 2627 is rotatably arranged on the periphery of the sliding tube 2624 along the axis of the sliding tube 2624, and the gear ring 2627 and the gear 2626 are meshed with each other; the rotating sleeve 2628 is fixedly arranged on the gear ring 2627 along the axis of the gear ring 2627, a first thread groove is provided on the inner side of the rotary sleeve 2628, a second thread groove is provided on the outer side of the sliding tube 2624, and the rotary sleeve 2628 and the sliding tube 2624 are threadedly matched; the limiting assembly is arranged on the sliding sleeve, and the limiting assembly prevents the sliding sleeve from rotating around its own axis.

[0045] The rotation driver 2625 is preferably a servo motor. When the rotation driver 2625 is started, the rotation driver 2625 drives the gear ring 2627 to rotate through the gear 2626. Since the gear ring 2627 is fixedly connected to the rotating sleeve 2628, the rotating sleeve 2628 also rotates. A first thread groove is provided on the inner side of the rotating sleeve 2628, and a second thread groove is provided on the outer side of the sliding tube 2624. The rotating sleeve 2628 and the sliding tube 2624 are threadedly matched, and the limiting assembly can limit the sliding tube 2624. When the rotating sleeve 2628 rotates, the sliding tube 2624 can slide along the extension direction of the branch pipeline 22, so that the second spring 2622 between the sliding tube 2624 and the limiting ring 2623 is compressed.

[0046] Reference Figure 4 : The limit assembly includes a limit block 2629 and a limit groove; the limit block 2629 is fixedly arranged on the inner wall of the branch pipeline 22 along the extension direction of the branch pipeline 22; the limit groove is opened on the sliding tube 2624 along the extension direction of the branch pipeline 22, and the limit block 2629 and the limit groove are slidably matched.

[0047] Through the sliding cooperation between the limiting block 2629 and the limiting groove, the sliding tube 2624 can only slide along the extension direction of the branch pipeline 22, but the sliding tube 2624 cannot rotate around its own axis.

[0048] Reference Figure 2 and Figure 3 : The pressure maintaining device 263 includes an overflow valve 2631 and a pressure sensor; the overflow valve 2631 is arranged at one end of the branch pipeline 22 close to the main pipeline 21, and the water flow of the main pipeline 21 flows into the branch pipeline 22 through the overflow valve 2631; the pressure sensor is arranged in the branch pipeline 22.

[0049] The pressure sensor monitors the water flow pressure in the branch pipes 22 in real time. When the pressure in one of the branch pipes 22 rises, the water pressure at the ends of the other branch pipes 22 will also increase. The pressure sensor limits the water flow in the branch pipes 22 through the overflow valve 2631 to prevent the pressure from rising, thereby ensuring that after the water pressure in one of the branch pipes 22 is increased, the water pressure in the other branch pipes 22 will not be affected.

[0050] Reference Figure 8 and Fig. 9 : The humidity detection device 261 includes a mounting frame 2611 and a humidity sensor 2612; the mounting frame 2611 is fixedly arranged on one side of the bracket; the humidity sensor 2612 is arranged at the lower part of the mounting frame 2611.

[0051] The humidity sensor 2612 is inserted into the soil, and the humidity sensor 2612 monitors the humidity of the soil. When the humidity sensor 2612 detects that the humidity is lower than the preset value, the humidity sensor 2612 controls the boosting device 262 to increase the pressure through the controller, so that the water flow pressure in the corresponding branch pipe 22 increases, so that the water output of the drip irrigation head 23 arranged on the branch pipe 22 will increase. As the flow rate of the drip irrigation head 23 increases, the humidity detected by the humidity sensor 2612 will gradually return to the normal value, and then the humidity sensor 2612 controls the boosting device 262 to recover through the controller.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An ecological agricultural circulating drip irrigation system, comprising a water pump (1) and a circulating device (2); It is characterized in that The circulation device (2) comprises a main pipeline (21), a branch pipeline (22), a drip irrigation head (23), a first driving device (24) and a lifting device (25); The main pipe (21) is arranged at the output end of the water pump (1), and the main pipe (21) is in communication with the water pump (1); A plurality of branch pipelines (22) are provided, the branch pipelines (22) are evenly arranged on one side of the main pipeline (21), the branch pipeline (22) and the main pipeline (21) are connected to each other, a plurality of extension sleeves (221) are vertically provided at the lower part of the branch pipeline (22), and the extension sleeves (221) are evenly distributed on the branch pipeline (22) along the extension direction of the branch pipeline (22); The drip irrigation head (23) is arranged in the extension sleeve (221) to slide back and forth along the extension direction of the extension sleeve (221), the output end of the drip irrigation head (23) is vertically downward, and a slope is arranged on the upper part of the drip irrigation head (23), the inclined surface of the slope faces the flow direction of water in the branch pipeline (22); The first driving device (24) is arranged on the branch pipeline (22), and the water flowing in the branch pipeline (22) is the driving source of the first driving device (24); The lifting device (25) is arranged on the upper part of the drip irrigation head (23), and is used to drive the drip irrigation head (23) to slide along the extension direction of the extension sleeve (221), and the first driving device (24) drives the lifting device (25) to operate; The first driving device (24) comprises a driving housing (241), a driving shaft (242) and blades (243); The drive housing (241) is arranged on the branch pipeline (22), and a circular cavity is provided inside the drive housing (241); The drive shaft (242) is rotatably disposed in the drive housing (241) along the axis of the circular cavity, and the drive shaft (242) is connected to the lifting device (25); A plurality of blades (243) are provided, and the blades (243) are evenly and fixedly arranged on the side wall of the driving shaft (242) around the axis of the driving shaft (242); The lifting device (25) comprises a lifting rod (251), a lifting block (252), an engaging block (253) and a rotating disk (254); The lifting rod (251) is vertically fixedly arranged on the upper part of the drip irrigation head (23); The lifting block (252) is fixedly arranged on the upper part of the lifting rod (251); a guide sleeve (2521) is vertically arranged on the upper part of the branch pipeline (22); the guide sleeve (2521) is communicated with the branch pipeline (22); and the lifting block (252) is slidably arranged in the guide sleeve (2521) along the length direction of the guide sleeve (2521); The engaging block (253) is fixedly arranged on the side wall of the lifting block (252); The rotating disk (254) is fixedly arranged at the end of the driving shaft (242) along the axis of the driving shaft (242), and a plurality of meshing teeth are fixedly arranged around the rotating disk (254). The meshing teeth are arranged around the axis of the rotating disk (254). The peripheral wall of the rotating disk (254) is divided into two parts, one part is provided with meshing teeth, and the other part is not provided with meshing teeth. The meshing teeth mesh with the meshing block (253); The lifting device (25) further comprises a reset auxiliary device (255), wherein the reset auxiliary device (255) comprises a fixing frame (2551) and a first spring (2552); The fixing frame (2551) is arranged above the lifting rod (251), and a first gap exists between the fixing frame (2551) and the upper part of the engagement block (253); The first spring (2552) is arranged in the first gap along the axis of the lifting rod (251), and two ends of the first spring (2552) are respectively fixedly connected to the fixing frame (2551) and the upper part of the engaging block (253); The circulation device (2) further comprises a dripping speed segmented regulating device (26), wherein the dripping speed segmented regulating device (26) comprises a humidity detection device (261), a pressure boosting device (262) and a pressure maintaining device (263); The humidity detection device (261) is arranged on one side of the branch pipeline (22), and the humidity detection device (261) is used to detect soil humidity. A controller is arranged on one side of the branch pipeline (22); The boosting device (262) is arranged on the branch pipe (22) on the side of the drip irrigation head (23) away from the main pipe (21), and the humidity detection device (261) controls the operation of the boosting device (262) through a controller; The pressure-maintaining device (263) is arranged on the branch pipeline (22) on the side of the drip irrigation head (23) close to the main pipeline (21).

2. The ecological agricultural circulation drip irrigation system according to claim 1 is characterized in that: The boosting device (262) comprises a sphere (2621), a second spring (2622), a limiting ring (2623), a sliding tube (2624), and a second driving device; The limiting ring (2623) is fixedly arranged on the inner wall of the branch pipeline (22) along the axis of the branch pipeline (22); The spherical body (2621) is arranged on a side of the limiting ring (2623) away from the main pipeline (21) so as to move along the extension direction of the branch pipeline (22); An open section is provided on the side of the branch pipeline (22) away from the main pipeline (21); a sliding tube (2624) is slidably arranged on the open section along the axis of the branch pipeline (22); the sliding tube (2624) and the branch pipeline (22) are slidably matched; and a second gap exists between the sliding tube (2624) and the limiting ring (2623); The second spring (2622) is arranged in the second gap along the axis of the limiting ring (2623), and two ends of the second spring (2622) are respectively fixedly connected to the limiting ring (2623) and the sliding tube (2624); The second driving device is disposed on one side of the sliding tube (2624), and the second driving device drives the sliding tube (2624) to slide.

3. The ecological agricultural circulation drip irrigation system according to claim 2 is characterized in that: The second driving device comprises a rotary driver (2625), a gear (2626), a gear ring (2627), a rotating sleeve (2628), and a limit assembly; The rotary driver (2625) is arranged outside the branch pipeline (22); The gear (2626) is fixedly arranged on the output end of the rotary driver (2625); The gear ring (2627) is rotatably arranged on the periphery of the sliding tube (2624) along the axis of the sliding tube (2624), and the gear ring (2627) and the gear (2626) are meshed with each other; The rotating sleeve (2628) is fixedly arranged on the gear ring (2627) along the axis of the gear ring (2627), a first thread groove is formed on the inner side of the rotating sleeve (2628), a second thread groove is formed on the outer side of the sliding tube (2624), and the rotating sleeve (2628) and the sliding tube (2624) are threadably matched; The limiting component is arranged on the sliding sleeve, and the limiting component prevents the sliding sleeve from rotating around its own axis.

4. The ecological agricultural circulation drip irrigation system according to claim 3 is characterized in that: The limiting assembly includes a limiting block (2629) and a limiting groove; The limit block (2629) is fixedly arranged on the inner wall of the branch pipeline (22) along the extension direction of the branch pipeline (22); The limiting groove is provided on the sliding tube (2624) along the extension direction of the branch pipeline (22), and the limiting block (2629) and the limiting groove are slidably matched.

5. The ecological agricultural circulation drip irrigation system according to claim 1, characterized in that: The pressure maintaining device (263) comprises a relief valve (2631) and a pressure sensor; The overflow valve (2631) is arranged at one end of the branch pipeline (22) close to the main pipeline (21), and the water flow of the main pipeline (21) flows into the branch pipeline (22) through the overflow valve (2631); The pressure sensor is arranged in the branch pipeline (22).

6. The ecological agricultural circulation drip irrigation system according to claim 1, characterized in that: The humidity detection device (261) comprises a mounting frame (2611) and a humidity sensor (2612); The mounting frame (2611) is fixedly arranged on one side of the bracket; The humidity sensor (2612) is disposed at the lower portion of the mounting frame (2611).

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