Drought farmland water-saving irrigation equipment and method capable of switching water spraying modes

Abstract

The invention discloses drought farmland water-saving irrigation equipment and method capable of switching water spraying modes, the drought farmland water-saving irrigation equipment comprises a water pipe, a plurality of connecting pipes are arranged on the water pipe, and each connecting pipe is connected with a water spraying assembly through a pipe joint; the water spraying assembly is used for water spraying and drip irrigation, the water spraying assembly comprises an outer ring cavity, an arc-shaped rod, an annular table, an annular plate, a supporting rod and an inner ring cavity, one end of the outer ring cavity is open, and the annular plate is fixedly connected to one end of the outer ring cavity through a plurality of square blocks; a first nozzle and a second nozzle which are symmetrical are formed in the annular plate, and the supporting rod can be clamped into a first groove or a second groove in the arc-shaped rod, so that the position of the inner ring cavity relative to the outer ring cavity is changed, the relative position relation between the water outlet and the first nozzle and the second nozzle is adjusted, and the flexible adjustment of the drip irrigation range is achieved; the water spraying mode can be selected according to the planting spacing, the growth stage, the soil humidity and other factors of crops.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland drip irrigation, and in particular to a water-saving irrigation device and method for arid farmland with switchable water spraying modes. Background Art

[0002] In arid areas, water resources are scarce, and farmland irrigation requires efficient and water-saving methods. Traditional irrigation methods such as flooding have serious problems such as water waste and uneven irrigation, resulting in low water utilization rate and may cause adverse consequences such as soil compaction, which is not conducive to the growth of crops and the sustainable development of agriculture. Drip irrigation technology, as a more advanced water-saving irrigation method, has been applied to a certain extent, but the existing drip irrigation equipment still has shortcomings in terms of drip irrigation uniformity, drip irrigation range control and equipment stability.

[0003] A drip irrigation connector and a drip irrigation pipe with the announcement number CN109937851B. The drip irrigation connector includes: a connecting pipe, wherein at least one mounting hole is provided on the pipe wall of the connecting pipe; an elastic baffle, wherein the elastic baffle is abutted against the inner pipe wall of the connecting pipe and seals and covers the mounting hole, and a through hole is also provided on the portion of the elastic baffle opposite to the mounting hole; a dripping head, wherein the dripping head is inserted into the mounting hole and connected to the elastic baffle, wherein a water inlet cavity connected to the through hole is formed in the dripping head, and a water outlet connected to the water inlet cavity is provided on the side wall of the dripping head; wherein the elastic baffle is deformed toward the mounting hole under the action of the water pressure in the connecting pipe and pushes the dripping head to extend out of the mounting hole, so that the water outlet is exposed from the mounting hole and drips water to the outside, and after the water pressure is reduced, the dripping head retracts into the mounting hole under the action of the elastic baffle. The anti-blocking performance and the reliability of use of the drip irrigation connector are improved by the drip irrigation connector;

[0004] A greening drip irrigation system with announcement number CN 110050556 B belongs to the technical field of drip irrigation equipment. The key points of its technical solution are a greening drip irrigation system, including a pool, a fertilizing device and a branch pipe connected in sequence through a pipeline. A plurality of drip pipes are connected to the branch pipe. A plurality of drip holes are opened on the drip pipe, and the plurality of drip holes are arranged opposite to each other in pairs along the length direction of the drip pipe. An adjusting rod is slidably inserted in the drip pipe, and two groups of adjusting components are slidably arranged on the adjusting rod at a position facing the drip hole. The adjusting component includes an adjusting sheet, a sliding bar and an elastic member. The adjusting sheet faces the drip hole, the sliding bar is fixedly connected to the adjusting sheet, and the end of the sliding bar away from the adjusting sheet is slidably matched with the adjusting rod, the elastic member is fixedly connected between the adjusting sheet and the adjusting rod, and the end of the adjusting rod passing through the drip pipe is fixedly connected to a driving member that drives the adjusting rod to move along the axis direction of the drip pipe, so as to achieve the effect of adjusting the drip irrigation rate according to actual needs.

[0005] However, the water outlet angle and water volume of the drip irrigation nozzle of the above invention are not easy to adjust, and it is difficult to meet the diverse water needs of different crops at different growth stages; at the same time, the connection parts of the drip irrigation equipment may become loose or leak during long-term use, affecting the overall performance and service life of the irrigation system;

[0006] Therefore, it is necessary to develop a new type of water-saving irrigation equipment and method for arid farmland with switchable water spraying modes to improve drip irrigation efficiency and water resource utilization, ensure the stable and reliable operation of the irrigation system, and promote the development of agriculture in arid areas. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a water-saving irrigation device and method for arid farmland with switchable water spraying modes. The support rod can be inserted into the first groove or the second groove on the arc rod, thereby changing the position of the inner circle cavity relative to the outer circle cavity, and then adjusting the relative position relationship between the water outlet and the first nozzle and the second nozzle, thereby realizing flexible adjustment of the drip irrigation range, and the water spraying mode can be selected according to factors such as the planting spacing, growth stage and soil moisture of crops.

[0008] A water-saving irrigation device for arid farmland with switchable water spraying modes, characterized in that it comprises a water pipe, on which a plurality of connecting pipes are arranged, and each of the connecting pipes is connected to a water spraying assembly through a pipe joint;

[0009] The water spray assembly is used for water spray drip irrigation, and the water spray assembly includes an outer ring cavity, an arc rod, an annular platform, an annular plate, a support rod and an inner ring cavity, one end of the outer ring cavity is open, one end of the outer ring cavity is fixedly connected to the annular plate through a plurality of blocks, a symmetrical first nozzle and a second nozzle are provided on the annular plate, the first nozzle and the second nozzle are arranged in a cross shape, the first nozzle and the second nozzle are both connected to the center hole of the annular plate, one end of the inner ring cavity corresponding to the annular plate is fixedly connected to the annular platform, symmetrically arranged arc rods are fixed in the inner ring cavity, symmetrically arranged second grooves are respectively provided on the inner sides of the middle parts of the two arc rods, the gap between the arc rods forms a first groove, the first groove and the second groove are arranged in a cross shape, and the support rod can be inserted into the first groove or the second groove;

[0010] The other end of the outer ring cavity is closed and a channel is opened in the center for water to pass through. The inner ring cavity is arranged in the outer ring cavity. One end of the inner ring cavity is open and the other end is closed. A handle is fixed at the center of the closed end of the inner ring cavity, and the handle passes through the center hole of the annular plate. The open end of the inner ring cavity is fixed with the support rod, and the support rod is fixedly connected to one end of a large spring at the center of one side of the outer ring cavity. The other end of the large spring is rotatably connected to the center of the open closed end of the outer ring. The inner diameter of the large spring is larger than the diameter of the channel. Two groups of water outlets are opened at the closed end of the inner ring cavity, and the center points of the two groups of water outlets are on the same straight line. The two groups of water outlets are symmetrically arranged along the axial direction of the inner ring cavity, and each group of water outlets is a plurality of;

[0011] The length of the support rod is smaller than the longest length between two of the second grooves.

[0012] As a further limitation of the technical solution, it also includes a scattering assembly, the scattering assembly includes a rotating gear ring, a rotating rod and scattering blades, the rotating rod is fixedly connected to the rotating gear ring, the center of the rotating rod is rotatably connected to the center of the support rod, the rotating gear ring is placed between the support rod and the inner ring cavity, and the center of the rotating rod is fixedly connected to the scattering blades;

[0013] It also includes a limiting component, which is used to limit the position of the rotating gear ring.

[0014] As a further limitation of the present technical solution, the limit assembly includes a top block, the top block is fixed at the middle position of the annular platform corresponding to the two first grooves, the thickness of the top block is less than the thickness of the arc rod, open grooves are respectively provided at both ends of the support rod, a clamping groove is provided at the open end of the inner ring cavity corresponding to the position of the open groove, a stop block is provided in the clamping groove, a symmetrical small spring and a guide column are fixed at one end of the stop block corresponding to the bottom of the clamping groove, the small spring is encircled by the guide column, the small spring is fixed to the inner ring cavity at the bottom end of the clamping groove, a guide hole is provided in the inner ring cavity corresponding to the guide column, and the guide column is slidably arranged in the guide hole;

[0015] The stop block is arranged inside the open groove, and the thickness of the stop block is smaller than the thickness of the support rod.

[0016] As a further limitation of the present technical solution, when the two ends of the support rod are inserted into the first groove, the water outlet corresponds to the first nozzle. At this time, the stop block and the top block are in contact, and one end of the stop block corresponding to the rotating gear ring can resist the inner end of the tooth groove of the rotating gear ring.

[0017] As a further limitation of the present technical solution, the pipe joint includes a first plug-in tube with an annular groove, a hinge block, a limit rod, a second plug-in tube with symmetrical openings and a round tube, the first plug-in tube is fixed to the outer end of the connecting tube, the first plug-in tube is plug-connected to the second plug-in tube, and the outer wall of the second plug-in tube is fixed with symmetrical hinge blocks corresponding to the position of the opening, the hinge blocks are located on both sides of the opening, each pair of the hinge blocks are respectively rotatably connected to both sides of one end of the limit rod, and each of the limit rods is respectively fixedly connected to a protrusion, the protrusion is an arc block, and the protrusion can pass through the opening and be stuck in the annular groove.

[0018] As a further limitation of the present technical solution, the stop block and the rotating gear ring are both made of rubber.

[0019] A method for using a water-saving irrigation device for arid farmland with switchable water spraying modes, comprising the following steps:

[0020] Step 1: Lay the water pipes in the farmland according to the pre-planned path, try to keep the water pipes horizontal and straight, avoid bending or twisting, to ensure smooth water flow;

[0021] Step 2: Connect the water spray assembly and the connecting pipe through the pipe joint. First, insert the first plug-in pipe of the pipe joint into the second plug-in pipe to ensure that the insertion depth is appropriate; then, rotate the limit rod hinged on the second plug-in pipe so that the protrusion on the limit rod passes through the opening of the second plug-in pipe and is inserted into the annular groove of the first plug-in pipe, thereby locking the pipe joint to ensure a firm connection and prevent loosening and water leakage during irrigation;

[0022] Step 3: Before using for the first time or after not using for a long time, check the position of the inner cavity of the water spray assembly to ensure that the support rod is in the initial state, that is, it is not stuck in the first groove or the second groove, so as to facilitate subsequent adjustment operations. According to the growth stage, planting density and water demand of the crops, manually operate the handle on the inner cavity of the water spray assembly to adjust the position of the inner cavity to achieve different drip irrigation ranges and angles. For example, for crops in the seedling stage, a smaller drip irrigation range and more concentrated water droplets may be required. The support rod can be rotated to the position corresponding to the first groove so that the water outlet corresponds to the first nozzle, and water is sprayed from the first nozzle to form a smaller drip irrigation range; while for crops in the vigorous growth period, a larger drip irrigation range and more dispersed water droplets may be required. The support rod can be rotated to the position corresponding to the second groove so that the water outlet corresponds to the second nozzle, and the water flow can be dispersed using the dispersion component to expand the drip irrigation range and make the water droplets more evenly distributed;

[0023] Step 4: After completing all installation and adjustment work, slowly open the water source and control the water pressure and flow to keep it within the tolerance range of the equipment. When initially opening, closely observe whether there is any leakage at each connection point and water spray component. If there is any leakage, immediately turn off the water source and check and repair the leak.

[0024] As a further limitation of the technical solution, in step three, there are two water spraying methods:

[0025] The first water spraying method (spraying water from the first nozzle): push the handle to drive the inner ring cavity to move along the outer ring cavity in the direction away from the arc rod. At this time, the large spring is compressed. Then, rotate the handle to drive the inner ring cavity to rotate, so that the support rod is aligned with the first groove. Then slowly pull the handle in the opposite direction or release the handle. The large spring rebounds and pushes the two ends of the support rod into the first groove. The two ends of the support rod are tightly attached to the inner bottom wall of the first groove. The stop block of the limit assembly is pushed by the top block to move away from the handle. The small spring undergoes elastic deformation, and the stop block presses against the inner end of the tooth groove of the rotating gear ring. The rotating gear ring will not rotate. At this time, the water outlet is completely aligned with the first nozzle, and water is sprayed from the first nozzle to achieve a more concentrated drip irrigation effect.

[0026] The second water spraying method (spraying water from the second nozzle and using the dispersion component): When it is necessary to switch to the second water spraying method, push the handle again to drive the inner circle cavity to move along the outer circle cavity, compress the large spring, and make the inner circle cavity drive the support rod away from the arc rod. Then, rotate the handle to drive the inner circle cavity to rotate, align the support rod with the second groove, and then pull the handle in the opposite direction or release the handle to let the large spring rebound, so that the two ends of the support rod are stuck in the second groove. At this time, the water outlet corresponds to the second nozzle. Because in this state, the limit component does not limit the dispersion component, the water flow hits the rotating gear ring through the water outlet, driving the rotating rod and the dispersion fan blades to rotate, cutting and dispersing the water flow, and the water is sprayed out from the second nozzle and scattered on the farmland, achieving a larger range and more uniform drip irrigation effect.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are:

[0028] (1) The water spraying components are connected by a large spring and can rotate relatively. The water outlet on the inner ring cavity cooperates with the first nozzle and the second nozzle on the outer ring cavity to realize different modes of water spraying, so that the distribution of water droplets in the farmland is more uniform. The first water spraying mode does not cause the components to rotate, while the second water spraying mode causes the components to rotate;

[0029] (2) The setting of the dispersion component further improves the uniformity of irrigation. The rotating gear ring, the rotating rod and the dispersion blades rotate under the action of the water flow, which can disperse the water flow sprayed from the water outlet into smaller water droplets. When the water flows through the rotating blades, the blades disperse the water in different directions, changing the way the water flows out, avoiding the water from flowing out in one place, expanding the coverage of the water droplets, making the water fall more evenly on the surface of the farmland, and improving the irrigation effect;

[0030] (3) The support rod can be inserted into the first groove or the second groove on the arc rod, thereby changing the position of the inner circle cavity relative to the outer circle cavity, and then adjusting the relative position relationship between the water outlet and the first nozzle and the second nozzle, so as to achieve flexible adjustment of the drip irrigation range. The water spraying mode can be selected according to factors such as the planting spacing, growth stage and soil moisture of crops, thereby improving the utilization efficiency of water resources and avoiding waste of water resources;

[0031] (4) The pipe joint includes a first plug-in pipe, a hinge block, a limit rod, a second plug-in pipe and a round pipe. The first plug-in pipe and the second plug-in pipe are connected by plugging and fixed by the limit rod and the protrusion. The protrusion can pass through the opening and be inserted into the annular groove, which effectively prevents the connection pipe from loosening or falling off during use, ensures the sealing and stability of the drip irrigation system, reduces the occurrence of water leakage, and ensures the normal irrigation.

[0032] (5) In the process of dispersing the water flow, the dispersion component can reduce the deposition of impurities in the water at the nozzle, reduce the risk of nozzle clogging, and ensure the continuous and stable operation of the drip irrigation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0034] Figure 1 A perspective view of the present invention;

[0035] Figure 2 The local stereoscopic Figure 1 ;

[0036] Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A;

[0037] Figure 4 The local stereoscopic Figure 2 ;

[0038] Figure 5 The local stereoscopic Figure 3 ;

[0039] Figure 6 The local stereoscopic Figure 4 ;

[0040] Figure 7 The present invention is a partially cut-away three-dimensional Figure 1 ;

[0041] Figure 8 The present invention is a partially cut-away three-dimensional Figure 2 ;

[0042] Fig. 9 The local stereoscopic Figure 5 ;

[0043] Fig.10 For the present invention Fig. 9 A partial enlarged view of point B in the middle;

[0044] Fig.11 The local stereoscopic Figure 6 ;

[0045] Fig.12 The present invention is a partially cut-away three-dimensional Figure 3 ;

[0046] Fig.13 The present invention is a partially cut-away three-dimensional Figure 4 .

[0047] In the figure: 1, water pipe; 2, pipe joint; 201, first plug-in pipe; 2011, annular groove; 202, hinge block; 203, limit rod; 2031, convex block; 204, second plug-in pipe; 2041, opening; 205, round pipe; 3, water spray assembly; 301, outer ring cavity; 3011, square block; 302, arc rod; 3021, first groove; 3022, second groove; 304, annular table; 3 05. Ring plate; 3051. First nozzle; 3052. Second nozzle; 307. Support rod; 3071. Open groove; 308. Inner ring cavity; 3081. Handle; 3082. Slot; 3083. Water outlet; 4. Breaking up assembly; 401. Rotating gear ring; 402. Rotating rod; 403. Breaking up fan blades; 5. Connecting pipe; 6. Top block; 7. Resistance block; 701. Guide column; 702. Small spring. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0049] A water-saving irrigation device for arid farmland with switchable water spraying modes comprises a water pipe 1, on which a plurality of connecting pipes 5 are arranged, and each of the connecting pipes 5 is connected to a water spraying assembly 3 through a pipe joint 2;

[0050] The water spray assembly 3 is used for water spray drip irrigation. The water spray assembly 3 includes an outer ring cavity 301, an arc rod 302, an annular platform 304, an annular plate 305, a support rod 307 and an inner ring cavity 308. One end of the outer ring cavity 301 is open, and one end of the outer ring cavity 301 is fixedly connected to the annular plate 305 through a plurality of blocks 3011. The annular plate 305 is provided with a symmetrical first nozzle 3051 and a second nozzle 3052. The first nozzle 3051 and the second nozzle 3052 are arranged in a cross shape. The first nozzle 3051 and the second nozzle 3052 are arranged in a cross shape. 052 are connected to the center hole of the annular plate 305, one end of the inner ring cavity 308 corresponding to the annular plate 305 is fixedly connected to the annular stage 304, and the inner ring cavity 308 is fixed with symmetrically arranged arc rods 302, and the inner sides of the middle parts of the two arc rods 302 are respectively provided with symmetrically arranged second grooves 3022, and the gap between the arc rods 302 forms a first groove 3021, and the first groove 3021 and the second groove 3022 are arranged in a cross shape, and the support rod 307 can be stuck in the first groove 3021 or the second groove 3022;

[0051] The other end of the outer ring cavity 301 is closed and a channel is opened in the center for water to pass through. The inner ring cavity 308 is arranged in the outer ring cavity 301. One end of the inner ring cavity 308 is open and the other end is closed. A handle 3081 is fixed at the center of the closed end of the inner ring cavity 308. The handle 3081 passes through the center hole of the annular plate 305. The support rod 307 is fixed at the open end of the inner ring cavity 308. The support rod 307 corresponds to The center of one side of the outer ring cavity 301 is fixedly connected to one end of a large spring, and the other end of the large spring is rotatably connected to the center of the closed end of the outer ring. The inner diameter of the large spring is larger than the diameter of the channel. The closed end of the inner ring cavity 308 is provided with two groups of water outlets 3083, and the center points of the two groups of water outlets 3083 are on the same straight line. The two groups of water outlets 3083 are symmetrically arranged along the axial direction of the inner ring cavity 308, and each group of water outlets 3083 has a plurality of water outlets;

[0052] The length of the support rod 307 is smaller than the longest length between two second grooves 3022 .

[0053] Further, the width of the first nozzle 3051 is greater than the diameter of the water outlet 3083 , and the width of the second nozzle 3052 is less than the diameter of the water outlet 3083 .

[0054] In this embodiment, water enters the outer cavity 301 of the water spray assembly 3 from the water pipe 1 through the connecting pipe 5, and then enters the inner cavity 308 through the channel at the other end of the outer cavity 301. When the inner cavity 308 is in different positions, the water will flow out from the water outlet 3083 of the inner cavity 308, and according to the relative position relationship between the water outlet 3083 and the first nozzle 3051 and the second nozzle 3052 on the outer cavity 301, the water will be sprayed out from the corresponding nozzle.

[0055] Specifically, the present invention has two water spraying modes. For example, when the handle 3081 is pushed to drive the inner circle cavity 308 to move along the outer circle cavity 301, the large spring is compressed, the inner circle cavity 308 drives the support rod 307 away from the arc rod 302, and the handle 3081 is rotated to drive the inner circle cavity 308 to rotate, so that the support rod 307 corresponds to the first groove 3021, and the handle 3081 is pulled in the opposite direction or the handle 3081 is released, and the large spring rebounds. At this time, the two ends of the support rod 307 are stuck in the first groove 3021, and the two ends of the support rod 307 are respectively attached to the inner bottom wall of the first groove 3021, and the water outlet 3083 corresponds to the first nozzle 3051, and water is sprayed out from the first nozzle 3051;

[0056] For example, when the support rod 307 needs to be inserted into the second groove 3022, the handle 3081 is pushed to drive the inner circle cavity 308 to move along the outer circle cavity 301, compressing the large spring. The inner circle cavity 308 drives the support rod 307 away from the arc rod 302. The handle 3081 is rotated to drive the inner circle cavity 308 to rotate so that the support rod 307 corresponds to the second groove 3022. The handle 3081 is pulled in the opposite direction or the handle 3081 is released, and the large spring rebounds. At this time, the two ends of the support rod 307 are inserted into the second groove 3022, and the water outlet 3083 corresponds to the second nozzle 3052, and water is sprayed out from the second nozzle 3052.

[0057] In this embodiment, a scattering assembly 4 is also included, and the scattering assembly 4 includes a rotating gear ring 401, a rotating rod 402 and scattering blades 403, the rotating rod 402 is fixedly connected to the rotating gear ring 401, the center of the rotating rod 402 is rotatably connected to the center of the support rod 307, the rotating gear ring 401 is placed between the support rod 307 and the inner ring cavity 308, and the center of the rotating rod 402 is fixedly connected to the scattering blades 403;

[0058] It also includes a limiting component, which is used to limit the position of the rotating ring gear 401.

[0059] The breaking up component 4 is limited by the limiting component. When the support rod 307 is inserted into the first groove 3021, the limiting component can limit the breaking up component 4. When the support rod 307 is inserted into the second groove 3022, the limiting component will not limit the breaking up component 4. The rotating gear ring 401 of the breaking up component 4 rotates under the impact force of the water flow, and the rotating rod 402 and the breaking up fan blades 403 rotate accordingly, thereby realizing the cutting and breaking up of the water flow.

[0060] In this embodiment, the limiting assembly includes a top block 66, and the top block 66 is fixed at the middle position of the annular platform 304 corresponding to the two first grooves 3021, the thickness of the top block 66 is less than the thickness of the arc rod 302, and the two ends of the support rod 307 are respectively provided with open grooves 3071, and the open end of the inner ring cavity 308 is provided with a slot 3082 corresponding to the position of the open groove 3071, and a stop block 7 is arranged in the slot 3082, and a symmetrical small spring 702 and a guide column 701 are fixed at one end of the stop block 7 corresponding to the bottom of the slot 3082, the small spring 702 is encircled by the guide column 701, and the small spring 702 is fixed to the inner ring cavity 308 at the bottom end of the slot 3082, and the inner ring cavity 308 is provided with a guide hole corresponding to the guide column 701, and the guide column 701 is slidably arranged in the guide hole;

[0061] The stop block 7 is disposed inside the open groove 3071 , and the thickness of the stop block 7 is smaller than the thickness of the support rod 307 .

[0062] When both ends of the support rod 307 are inserted into the first groove 3021 , the water outlet 3083 corresponds to the first nozzle 3051 . At this time, the stop block 7 abuts against the top block 6 , and one end of the stop block 7 corresponding to the rotating gear ring 401 can abut against the inner end of the tooth groove of the rotating gear ring 401 .

[0063] Furthermore, the rotating gear ring 401 and the stop block 7 are both made of deformable rubber material.

[0064] When both ends of the support rod 307 are inserted into the first groove 3021, due to the setting of the stop block 7, the stop block 7 can stop the top block 6, the small spring 702 is elastically deformed, and the stop block 7 moves along the axis direction of the guide column 701 in the direction away from the handle 3081, and the stop block 7 stops the inner end of the outer tooth groove of the rotating gear ring 401, the stop block 7 and the rotating gear ring 401 are elastically deformed, and the stop block 7 limits the rotating gear ring 401, and the rotating gear ring 401 cannot rotate at this time;

[0065] When both ends of the support rod 307 are inserted into the second groove 3022, since the stop block 7 is not limited by the top block 6, there is a certain distance between the stop block 7 and the positioning gear ring. The stop block 7 does not limit the rotating gear ring 401, and the rotating gear ring 401 can drive the rotating fan blades to rotate.

[0066] In this embodiment, the pipe joint 2 includes a first plug-in tube 201 with an annular groove 2011, a hinge block 202, a limit rod 203, a second plug-in tube 204 with a symmetrical opening 2041 and a round tube 205. The first plug-in tube 201 is fixed to the outer end of the connecting tube 5. The first plug-in tube 201 is plug-connected to the second plug-in tube 204. A symmetrical hinge block 202 is fixed to the outer wall of the second plug-in tube 204 at a position corresponding to the opening 2041. The hinge blocks 202 are located on both sides of the opening 2041. Each pair of the hinge blocks 202 are respectively rotatably connected to both sides of one end of the limit rod 203. Each limit rod 203 is respectively fixedly connected to a protrusion 2031. The protrusion 2031 is an arc-shaped block. The protrusion 2031 can pass through the opening 2041 and be inserted into the annular groove 2011.

[0067] After the first plug-in tube 201 and the second plug-in tube 204 are plugged in, the limiting rod 203 is pulled to drive the protrusion 2031 to swing so that it passes through the opening 2041 and is stuck in the annular groove 2011, thereby limiting the first plug-in tube 201 and locking the first plug-in tube 201 and the second plug-in tube 204. When the first connecting tube 5 and the second connecting tube 5 need to be removed, the limiting rod 203 is pulled to drive the protrusion 2031 to swing away from the annular groove 2011, and the protrusion 2031 no longer limits the first plug-in tube 201, and the first plug-in tube 201 and the second plug-in tube 204 are separated.

[0068] The working process of the present invention is:

[0069] Lay the water pipe 1 according to the layout of the farmland, install the connecting pipe 5 at the corresponding position on the water pipe 1, and connect the connecting pipe 5 to the water spray assembly 3 through the pipe joint 2. When connecting, first insert the first plug-in pipe 201 into the second plug-in pipe 204, and then rotate the limit rod 203 to make the protrusion 2031 pass through the opening 2041 and snap into the annular groove 2011 of the first plug-in pipe 201 to ensure a firm connection without water leakage;

[0070] According to the planting conditions and irrigation needs of crops, the drip irrigation range of the water spray assembly 3 is adjusted. By manually operating the handle 3081 on the inner ring cavity 308, the support rod 307 is rotated to a position corresponding to the first groove 3021 or the second groove 3022, so as to realize different combinations of the water outlet 3083 and the first nozzle 3051 or the second nozzle 3052, so as to achieve a suitable drip irrigation range and angle. When the support rod 307 corresponds to the first groove 3021, the limit assembly works to limit the rotating gear ring 401, and the scattering assembly 4 cannot work. When the support rod 307 corresponds to the second groove 3022, the limit assembly loses its limiting effect on the rotating gear ring 401, the scattering assembly 4 works, and the rotating blades rotate.

[0071] Turn on the water source, water enters the water spray assembly 3 through the water pipe 1 and is sprayed out from the water outlet 3083. When the support rod 307 corresponds to the second groove 3022, the impact force of the water makes the scattering assembly 4 work, and under the action of the scattering assembly 4, the water is evenly sprinkled on the farmland.

[0072] The present invention also discloses a method for using a water-saving irrigation device for arid farmland with switchable water spraying modes, comprising the following steps: Step 1: laying a water pipe 1 in the farmland according to a pre-planned path, and keeping the water pipe 1 horizontal and straight as much as possible to avoid bending or twisting, so as to ensure smooth water flow;

[0073] Step 2: Connect the water spray assembly 3 and the connecting pipe 5 through the pipe joint 2. First, insert the first plug-in pipe 201 of the pipe joint 2 into the second plug-in pipe 204 to ensure that the insertion depth is appropriate; then, rotate the limit rod 203 hinged on the second plug-in pipe 204 to make the protrusion 2031 on the limit rod 203 pass through the opening 2041 of the second plug-in pipe 204 and be stuck in the annular groove 2011 of the first plug-in pipe 201, so as to lock the pipe joint 2 and ensure a firm connection to prevent loosening and water leakage during irrigation;

[0074] Step three: Before using for the first time or after not being used for a long time, check the position of the inner circle cavity 308 of the water spray assembly 3 to ensure that the support rod 307 is in the initial state, that is, it is not stuck in the first groove 3021 or the second groove 3022, so as to facilitate subsequent adjustment operations. According to the growth stage, planting density and water requirement of the crops, manually operate the handle 3081 on the inner circle cavity 308 of the water spray assembly 3 to adjust the position of the inner circle cavity 308 to achieve different drip irrigation ranges and angles. For example, for crops in the seedling stage, a smaller drip irrigation range and more concentrated water droplets may be required, and the support rod 307 may be rotated to a position corresponding to the first groove 3021, so that the water outlet 3083 corresponds to the first nozzle 3051, and water is sprayed from the first nozzle 3051 to form a smaller drip irrigation range; while for crops in the vigorous growth period, a larger drip irrigation range and more dispersed water droplets may be required, and the support rod 307 may be rotated to a position corresponding to the second groove 3022, so that the water outlet 3083 corresponds to the second nozzle 3052, and the water flow is dispersed by using the dispersion component 4 to expand the drip irrigation range and make the water droplets more evenly distributed;

[0075] Step 4: After completing all installation and adjustment work, slowly open the water source and control the water pressure and flow rate to keep it within the tolerance range of the equipment. When initially opened, closely observe whether there is any leakage at each connection part and the water spray assembly 3. If there is any leakage, immediately turn off the water source, check and repair the leaking point.

[0076] Among them, in step three, there are two water spraying methods:

[0077] The first water spraying method (spraying water from the first nozzle 3051): push the handle 3081 to drive the inner ring cavity 308 to move along the outer ring cavity 301 away from the arc rod 302. At this time, the large spring is compressed. Then, rotate the handle 3081 to drive the inner ring cavity 308 to rotate, so that the support rod 307 is aligned with the first groove 3021, and then slowly pull the handle 3081 in the opposite direction or release the handle 3081. The large spring rebounds and pushes the two ends of the support rod 307 into the first groove 3021. In the first groove 3021, the two ends of the support rod 307 are tightly attached to the inner bottom wall of the first groove 3021, the stopper 7 of the limit assembly is pushed by the top block 6 to move away from the handle 3081, the small spring 702 is elastically deformed, the stopper 7 is pressed against the inner end of the tooth groove of the rotating gear ring 401, and the rotating gear ring 401 does not rotate. At this time, the water outlet 3083 is completely aligned with the first nozzle 3051, and water is sprayed from the first nozzle 3051 to achieve a more concentrated drip irrigation effect;

[0078] The second water spraying mode (spraying water from the second nozzle 3052 and using the scattering component 4): When it is necessary to switch to the second water spraying mode, push the handle 3081 again to drive the inner ring cavity 308 to move along the outer ring cavity 301, compress the large spring, so that the inner ring cavity 308 drives the support rod 307 away from the arc rod 302, then rotate the handle 3081 to drive the inner ring cavity 308 to rotate, so that the support rod 307 is aligned with the second groove 3022, and then pull the handle 3081 in the opposite direction or release the handle 308. 1. Let the large spring rebound so that the two ends of the support rod 307 are stuck in the second groove 3022. At this time, the water outlet 3083 corresponds to the second nozzle 3052. Because in this state, the limiting component does not limit the scattering component 4, the water flow hits the rotating gear ring 401 through the water outlet 3083, driving the rotating rod 402 and the scattering blades 403 to rotate, cutting and scattering the water flow. After being sprayed out from the second nozzle 3052, it is scattered on the farmland, achieving a larger range and more uniform drip irrigation effect.

[0079] Through the above usage methods, the advantages of arid farmland water-saving irrigation equipment with switchable water spraying modes can be fully utilized to improve the utilization efficiency of water resources, provide suitable moisture conditions for the growth of crops, and at the same time extend the service life of the equipment and reduce maintenance costs. In actual use, the usage methods should be appropriately adjusted and optimized according to the specific equipment model and the actual situation of the farmland to ensure the optimization of the drip irrigation effect.

[0080] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A water-saving irrigation device for dry farmland with switchable water spraying mode, characterized in that: It comprises a water pipe (1), on which a plurality of connecting pipes (5) are arranged, and each of the connecting pipes (5) is connected to a water spray assembly (3) via a pipe joint (2); The water spray assembly (3) is used for water spray drip irrigation. The water spray assembly (3) comprises an outer ring cavity (301), an arc rod (302), an annular platform (304), an annular plate (305), a support rod (307) and an inner ring cavity (308). One end of the outer ring cavity (301) is open. One end of the outer ring cavity (301) is fixedly connected to the annular plate (305) through a plurality of blocks (3011). The annular plate (305) is provided with a symmetrical first nozzle (3051) and a second nozzle (3052). The first nozzle (3051) and the second nozzle (3052) are arranged in a cross shape. The first nozzle (3051) and the second nozzle (3052) are symmetrically arranged in a cross shape. The openings (3052) are all connected to the central hole of the annular plate (305); one end of the inner ring cavity (308) corresponding to the annular plate (305) is fixedly connected to the annular platform (304); symmetrically arranged arc rods (302) are fixed in the inner ring cavity (308); symmetrically arranged second grooves (3022) are respectively opened on the inner sides of the middle parts of the two arc rods (302); the gap between the arc rods (302) forms a first groove (3021); the first groove (3021) and the second groove (3022) are arranged in a cross shape; the support rod (307) can be inserted into the first groove (3021) or the second groove (3022); The other end of the outer ring cavity (301) is closed and has a channel in the center for water to pass through. The inner ring cavity (308) is arranged in the outer ring cavity (301). One end of the inner ring cavity (308) is open and the other end is closed. A handle (3081) is fixed at the center of the closed end of the inner ring cavity (308). The handle (3081) passes through the center hole of the annular plate (305). The support rod (307) is fixed at the open end of the inner ring cavity (308). The support rod (307) 7) One end of a large spring is fixedly connected to the center of one side of the outer ring cavity (301), and the other end of the large spring is rotatably connected to the center of the open closed end of the outer ring, the inner diameter of the large spring is larger than the diameter of the channel, and two groups of water outlets (3083) are opened at the closed end of the inner ring cavity (308), and the center points of the two groups of water outlets (3083) are on the same straight line. The two groups of water outlets (3083) are symmetrically arranged along the axial direction of the inner ring cavity (308), and each group of water outlets (3083) has a plurality of water outlets; The length of the support rod (307) is smaller than the longest length between two of the second grooves (3022).

2. The drought-resistant farmland water-saving irrigation equipment with switchable water spraying modes according to claim 1 is characterized in that: It also includes a scattering assembly (4), the scattering assembly (4) including a rotating gear ring (401), a rotating rod (402) and scattering blades (403), the rotating rod (402) is fixedly connected to the rotating gear ring (401), the center of the rotating rod (402) is rotatably connected to the center of the support rod (307), the rotating gear ring (401) is placed between the support rod (307) and the inner ring cavity (308), and the center of the rotating rod (402) is fixedly connected to the scattering blades (403); It also includes a limiting component, which is used to limit the position of the rotating gear ring (401).

3. The water-saving irrigation equipment for drought-stricken farmland with switchable water spraying modes according to claim 2 is characterized in that: The limiting assembly comprises a top block (6) (6), the top block (6) (6) is fixed at the middle position of the annular platform (304) corresponding to the two first grooves (3021), the thickness of the top block (6) (6) is less than the thickness of the arc rod (302), the two ends of the support rod (307) are respectively provided with open grooves (3071), and the open end of the inner ring cavity (308) is provided with a slot (3082) corresponding to the position of the open groove (3071), and the slot (3082) A stopper (7) is provided inside, and a symmetrical small spring (702) and a guide column (701) are fixed to one end of the stopper (7) corresponding to the bottom of the slot (3082), and the small spring (702) is sleeved around the guide column (701), and the small spring (702) is fixed to the inner ring cavity (308) at the bottom end of the slot (3082), and a guide hole is opened in the inner ring cavity (308) corresponding to the guide column (701), and the guide column (701) is slidably arranged in the guide hole; The stop block (7) is arranged inside the open groove (3071), and the thickness of the stop block (7) is smaller than the thickness of the support rod (307).

4. The drought-resistant farmland water-saving irrigation equipment with switchable water spraying modes according to claim 3 is characterized in that: When the two ends of the support rod (307) are inserted into the first groove (3021), the water outlet (3083) corresponds to the first nozzle (3051). At this time, the stop block (7) and the top block (6) are in contact with each other, and one end of the stop block (7) corresponding to the rotating gear ring (401) can stop against the inner end of the tooth groove of the rotating gear ring (401).

5. The water-saving irrigation equipment for drought-stricken farmland with switchable water spraying modes according to claim 4 is characterized in that: The pipe joint (2) comprises a first plug-in pipe (201) provided with an annular groove (2011), a hinge block (202), a limit rod (203), a second plug-in pipe (204) provided with a symmetrical opening (2041) and a round pipe (205), wherein the first plug-in pipe (201) is fixed to the outer end of the connecting pipe (5), the first plug-in pipe (201) is plugged and connected to the second plug-in pipe (204), and the outer wall of the second plug-in pipe (204) corresponds to the opening ( Symmetrical hinge blocks (202) are fixed at the positions of the hinges (2041), the hinge blocks (202) are located on both sides of the opening (2041), each pair of hinge blocks (202) are respectively rotatably connected to both sides of one end of the limit rod (203), each limit rod (203) is respectively fixedly connected to a protrusion (2031), the protrusion (2031) is an arc-shaped block, and the protrusion (2031) can pass through the opening (2041) and be inserted into the annular groove (2011).

6. The water-saving irrigation equipment for drought-stricken farmland with switchable water spraying modes according to claim 5 is characterized in that: The stop block (7) and the rotating gear ring (401) are both made of rubber.

7. The method for using the drought-resistant farmland water-saving irrigation equipment with switchable water spraying modes according to claim 6 is characterized in that The following steps are involved: Step 1: Lay the water pipe (1) in the farmland according to the pre-planned path, and try to keep the water pipe (1) horizontal and straight, avoiding bending or twisting, so as to ensure smooth water flow; Step 2: Connect the water spray assembly (3) and the connecting pipe (5) via the pipe joint (2). First, insert the first plug-in pipe (201) of the pipe joint (2) into the second plug-in pipe (204), ensuring that the insertion depth is appropriate; then, rotate the limit rod (203) hinged on the second plug-in pipe (204) so ​​that the protrusion (2031) on the limit rod (203) passes through the opening (2041) of the second plug-in pipe (204) and is inserted into the annular groove (2011) of the first plug-in pipe (201), thereby locking the pipe joint (2) and ensuring a firm connection to prevent loosening and water leakage during the irrigation process; Step 3: When using for the first time or after not being used for a long time, check the position of the inner cavity (308) of the water spray assembly (3) to ensure that the support rod (307) is in the initial state, that is, not stuck in the first groove (3021) or the second groove (3022), so as to facilitate subsequent adjustment operations. According to the growth stage, planting density and water requirement of the crops, manually operate the handle (3081) on the inner cavity (308) of the water spray assembly (3) to adjust the position of the inner cavity (308) to achieve different drip irrigation ranges and angles. For example, for crops in the seedling stage, a smaller drip irrigation range and more concentrated water droplets may be required. The support rod (307) may be rotated to a position corresponding to the first groove (3021) so that the water outlet (3083) corresponds to the first nozzle (3051), and water is sprayed from the first nozzle (3051) to form a smaller drip irrigation range. For crops in the vigorous growth period, a larger drip irrigation range and more dispersed water droplets may be required. The support rod (307) may be rotated to a position corresponding to the second groove (3022) so that the water outlet (3083) corresponds to the second nozzle (3052), and the water flow is dispersed using the dispersion component (4) to expand the drip irrigation range and make the water droplets more evenly distributed. Step 4: After completing all installation and adjustment work, slowly open the water source and control the water pressure and flow rate to keep it within the tolerance range of the equipment. When initially opening, closely observe whether there is any leakage at each connection point and the water spray assembly (3). If there is any leakage, immediately turn off the water source and check and repair the leak.

8. The method for using the water-saving irrigation equipment for dry farmland with switchable water spraying modes according to claim 7, characterized in that: In step 3, there are two water spraying modes: The first water spraying method (spraying water from the first nozzle (3051)): Push the handle (3081) to drive the inner ring cavity (308) to move along the outer ring cavity (301) in a direction away from the arc rod (302). At this time, the large spring is compressed. Then, rotate the handle (3081) to drive the inner ring cavity (308) to rotate, so that the support rod (307) is aligned with the first groove (3021), and then slowly pull the handle (3081) in the opposite direction or release the handle (3081). The large spring rebounds and pushes the two ends of the support rod (307) into the first groove (3021). The first groove (3021) is formed in the water outlet (3083) and the first nozzle (3051) is in the water outlet (3083). The first nozzle (3051) is used to spray water from the first nozzle (3051 ...83). The first nozzle (3051) is used to spray water from the first nozzle (3051). The first nozzle (3051) is used to spray water from the first nozzle (3051). The first nozzle (3051) is used to spray The second water spraying mode (spraying water from the second nozzle (3052) and using the scattering component (4)): When it is necessary to switch to the second water spraying mode, push the handle (3081) again to drive the inner ring cavity (308) to move along the outer ring cavity (301), compress the large spring, and make the inner ring cavity (308) drive the support rod (307) away from the arc rod (302), then rotate the handle (3081) to drive the inner ring cavity (308) to rotate, so that the support rod (307) is aligned with the second groove (3022), and then pull the handle (3081) in the opposite direction or release the handle ( 3081), allowing the large spring to rebound, so that the two ends of the support rod (307) are stuck in the second groove (3022). At this time, the water outlet (3083) corresponds to the second nozzle (3052). Since in this state, the limiting component does not limit the scattering component (4), the water flow impacts the rotating gear ring (401) through the water outlet (3083), driving the rotating rod (402) and the scattering blades (403) to rotate, cutting and scattering the water flow. After being sprayed out from the second nozzle (3052), the water falls on the farmland in a dispersed state, achieving a larger range and more uniform drip irrigation effect.

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