A kind of agricultural seedling spraying device

Abstract

The present invention discloses a seedling spraying device for agricultural planting, which relates to the technical field of spray irrigation, including a support plate, and also including a nozzle assembly fixedly installed on the support plate; the nozzle assembly includes a fixed cylinder, a fixed ring is rotatably installed on the upper part of the fixed cylinder, and a connecting seat is fixedly installed on the bottom of the fixed cylinder, the connecting seat is communicated with the fixed cylinder, the connecting seat is fixedly connected to the support plate, an inner cover is fixedly installed on the fixed ring, a plurality of filter screens are fixedly installed on the inner cover, a sewage discharge hole is provided on the inner cover, and a blocking ring is rotatably installed on the outside of the inner cover. The advantage is that the present invention utilizes the power of water during the spraying process to drive the inner cover and the water spray head to rotate, which can not only change the spraying direction, but also change the maximum spraying range of the spraying. At the same time, during the spraying process, the impact generated by the pulse is used to clean the impurities adhering to the filter screen, and the impurities are discharged in cooperation with the blocking ring, thereby improving the spraying efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of spray irrigation, and in particular to a spray device for agricultural seedling planting. Background Art

[0002] Sprinkler irrigation is a common agricultural irrigation method that imitates the effect of natural rainfall and sprays water evenly onto crops through nozzles. Its working principle is to transport water from the water source to the nozzles through a pipe system. The nozzles use pressure to atomize the water into small droplets, similar to raindrops, to achieve the purpose of irrigation. It is often used in agricultural seedling cultivation.

[0003] At present, the existing sprinkler irrigation device atomizes water by setting a nozzle, and irrigates the plants by atomizing and spraying. This method can make better use of water resources and the irrigation is more uniform. However, most of these devices are fixed, and the irrigation range is limited. It is impossible to achieve uniform irrigation in a larger range. The equipment is troublesome to install and fix. If the irrigation area is to be changed, the equipment needs to be frequently disassembled and adjusted, and the operation is complicated. Therefore, the publication number CN221812866U discloses an agricultural seedling spraying device, which includes a water supply device, a water guide component, a sprinkler, and a sprinkler. Components, the water supply equipment includes a water supply tank, a pump, a suction pipe, and a water supply pipe. A pump is fixedly connected to one side of the water supply tank, an input end of the pump is fixedly connected to the suction pipe, the other end of the suction pipe is arranged in the water supply tank, an output end of the pump is fixedly connected to the water supply pipe, one end of the water supply pipe is laid on one side of the edge of the planting field. When in use, the pump draws clean water from the water supply tank through the suction pipe and transports the clean water to the water supply pipe. A number of water guide components are connected to the water supply pipe, so as to transport the clean water in the water supply pipe to the water guide components. The water guide components are evenly arranged in the planting field.

[0004] The above-mentioned agricultural seedling spraying device can achieve efficient and uniform irrigation, and at the same time has the advantages of easy operation, simple structure, and convenient disassembly and assembly. It has a significant effect on improving agricultural irrigation efficiency and the convenience of agricultural mechanized planting and harvesting.

[0005] However, the above-mentioned agricultural seedling spraying device and most of the existing spraying devices all adopt direct spraying by the water outlet head during specific use. The spraying mode of the water outlet head is single and the spraying range is fixed, which will cause uneven spraying. For the position close to the spraying device, the irrigation is more sufficient, while the irrigation of the position of the principle spraying device is omitted. Moreover, after long-term use, impurities in the water will affect the normal spraying of the sprinkler head, and the sprinkler head needs to be dredged regularly, affecting the spraying efficiency.

[0006] Therefore, a novel agricultural seedling spraying device can be adopted to solve the shortcomings of the prior art. Summary of the invention

[0007] The purpose of the present invention is to solve the problems existing in the prior art and to propose an agricultural seedling spraying device.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An agricultural seedling spraying device comprises a support plate and a nozzle assembly fixedly mounted on the support plate;

[0010] The nozzle assembly includes a fixed cylinder, a fixed ring is rotatably installed on the upper part of the fixed cylinder, and a connecting seat is fixedly installed on the bottom of the fixed cylinder, the connecting seat is communicated with the fixed cylinder, the connecting seat is fixedly connected to the support plate, an inner cover is fixedly installed on the fixed ring, a plurality of filter screens are fixedly installed on the inner cover, a sewage discharge hole is opened on the inner cover, a blocking ring is rotatably installed on the outside of the inner cover, a water spray cylinder is fixedly installed in the fixed cylinder, a plurality of water spray heads are fixedly installed on the water spray cylinder, and an adjustment mechanism matched with the water spray cylinder is installed between the fixed cylinder and the fixed ring;

[0011] A three-way elbow is fixedly mounted on the support plate, a water injection assembly is mounted on the three-way elbow, a conduit assembly is mounted on the water injection assembly, and the conduit assembly is communicated with the connecting seat.

[0012] Preferably, the adjusting mechanism comprises a rotating ring rotatably mounted on a fixed cylinder, a threaded sleeve being fixedly mounted on the rotating ring, a threaded cylinder being slidably mounted on the bottom of the fixed cylinder and being threadably rotatably connected to the threaded sleeve, a connecting block being fixedly mounted on the threaded cylinder, a push-pull rod being fixedly mounted on the connecting block, an adjusting plug being fixedly mounted on the push-pull rod, a return spring being fixedly mounted between the connecting block and the fixed cylinder, a sealing ring being fixedly mounted in the fixed ring, and the sealing ring being communicated with the water spray cylinder.

[0013] Preferably, each of the water spray heads is designed to be inclined, and each of the water spray heads is designed to form a certain angle with the water spray barrel in the horizontal direction, and the angle is forty-five degrees.

[0014] Preferably, the water injection assembly includes two mounting plates slidably mounted on a support plate, a supercharger is fixedly mounted on each of the mounting plates, a water injection head is fixedly mounted on each of the two superchargers, a connecting head is fixedly mounted on the bottom of each of the two superchargers, the two connecting heads are connected to a three-way elbow, a flow control mechanism is installed between the two connecting heads and the three-way elbow, and a reciprocating mechanism is installed between the support plate and the two mounting plates.

[0015] Preferably, the flow control mechanism includes a sealing ring fixedly installed inside the three-way elbow, a hollow plate fixedly installed on the bottom of the connecting head, an elastic telescopic rod fixedly installed on the hollow plate, a sealing plate matching the sealing ring fixedly installed on the telescopic end of the elastic telescopic rod, a sleeve fixedly installed on the bottom of the connecting head, and a sliding connection between the sleeve and the three-way elbow.

[0016] Preferably, the reciprocating mechanism includes a driving motor fixedly mounted on a support plate, a linkage structure fixedly mounted on a driving end of the driving motor, an eccentric wheel rotatably mounted on the support plate, two sliding grooves are provided on the eccentric wheel, a pillar is slidably mounted in each of the two sliding grooves, a connecting rod is rotatably mounted on each of the two pillars, and the two connecting rods are fixedly connected to corresponding mounting plates respectively.

[0017] Preferably, the catheter assembly includes a three-way pipe, one end of the three-way pipe is connected to the connecting seat, a control valve plate is rotatably installed in the three-way pipe through a rotating shaft, the rotating shaft passes through and extends out of the three-way pipe, a control valve stem is fixedly installed on the rotating shaft, the other two ends of the three-way pipe are fixedly connected to a connecting pipe, a telescopic pipe is fixedly installed on the two connecting pipes, the two telescopic tubes are connected to the corresponding water injection heads, and a linkage assembly is installed between the three-way pipe and the fixed ring and the blocking ring.

[0018] Preferably, the linkage assembly comprises a rotating shaft that penetrates and is rotatably installed in the tee pipe, a turbine is fixedly installed on the rotating shaft, the turbine is located inside the tee pipe, a connecting column is fixedly installed on the rotating shaft, a rubber disc is fixedly installed on one end of the connecting column away from the rotating shaft, and a rubber ring that matches the rubber disc is fixedly installed on the fixing ring;

[0019] A frame is fixedly mounted on the top of the connecting column, an incomplete arc-shaped rubber plate is fixedly mounted on the frame, and a rubber ring matched with the incomplete arc-shaped rubber plate is fixedly mounted on the blocking ring.

[0020] Preferably, the arc diameter of the incomplete arc-shaped rubber plate is larger than the diameter of the rubber disc, and a connecting sleeve is fixedly mounted on the fixing cylinder, and the connecting sleeve is rotatably connected to the connecting column.

[0021] Preferably, the interior of the blocking ring is hollow, and a plurality of water inlet holes connected to the interior are opened on the blocking ring. A plurality of water outlets are fixedly mounted on the top of the blocking ring, and each of the water outlets is connected to the interior of the blocking ring.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. When the spraying device is spraying seedlings, two reciprocating and alternating water injection heads are set to inject water into the nozzle assembly, which will produce a certain pulse effect. The impact vibration of the pulse is used to clean the impurities in the filter in the nozzle assembly, thereby improving the impurity cleaning efficiency on the filter. At the same time, the pulse water injection method can effectively reduce the adhesion of impurities on the filter, which can reduce the spraying obstruction of the nozzle assembly, thereby improving the spraying efficiency.

[0024] 2. When the spraying device is spraying seedlings, a rotating inner cover is provided to automatically change the direction of the spraying water according to the switching of the water injection head, thereby achieving multi-directional spraying and a wide spraying coverage. In addition, the rotatable blocking ring is used to change the water output of the spraying water, so as to achieve the purpose of changing the water output spray speed, thereby expanding the maximum spraying range.

[0025] 3. When the spraying device is spraying seedlings, a rotating water spray head is set, which automatically drives the water spray head to rotate under the action of water pressure, so that a relative displacement occurs between the inner cover and the water spray head. The water spray head adopts an inclined design, and the water column sprayed by the water spray head can be used to clean the impurities filtered on the inner cover filter screen, and then the impurities are flushed into the blocking circle through the drainage hole and discharged through the water outlet head on the blocking circle, thereby achieving the purpose of automatic sewage discharge. There is no need to clean the spraying device regularly, thereby improving the spraying efficiency.

[0026] In summary, the present invention utilizes the power of water during the spraying process to drive the inner cover and the sprinkler head to rotate, which can not only change the spraying direction, but also change the maximum spray range of the spray. At the same time, during the spraying process, the impact generated by the pulse is used to clean the impurities adhered to the filter screen, and the impurities are discharged in conjunction with the blocking ring to improve the spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a spray device for agricultural seedlings proposed by the present invention;

[0029] Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0030] Figure 3 for Figure 1 A detailed diagram of the enlarged structure of the middle support plate, the three-way elbow, the water injection assembly and the conduit assembly;

[0031] Figure 4 for Figure 3 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0032] Figure 5 for Figure 4 A schematic detailed view of the plan structure along one of the angles;

[0033] Figure 6 for Figure 1 A detailed diagram of the enlarged structure of the middle three-way elbow and the connector;

[0034] Figure 7 for Figure 6 A schematic detailed view of the plan structure along one of the angles;

[0035] Figure 8 for Figure 7 Detailed schematic diagram of the three-dimensional structure along the AA section;

[0036] Fig. 9 for Figure 3 An enlarged schematic diagram of the structure of the middle duct assembly;

[0037] Fig.10 for Fig. 9 A schematic detailed view of the plan structure along one of the angles;

[0038] Fig.11 for Fig.10 Detailed schematic diagram of the three-dimensional structure along the BB section;

[0039] Fig.12 for Fig.11 An enlarged schematic diagram of the structure of the nozzle assembly;

[0040] Fig.13 for Fig.12 A schematic detailed view of the plan structure along one of the angles;

[0041] Fig.14 for Fig.13 Detailed schematic diagram of the three-dimensional structure along the CC section;

[0042] Fig.15 for Fig.14 The enlarged structural schematic detail diagram of the D part;

[0043] Fig.16 for Figure 2 A detailed schematic diagram of the enlarged structure of the middle linkage assembly;

[0044] Fig.17 for Fig.16 Enlarged structural schematic details of the middle rubber disc, rubber ring and rubber ring;

[0045] Fig.18 for Fig.17 Detailed diagram of the exploded structure of the middle fixing ring, the blocking ring and the inner cover;

[0046] Fig.19 for Fig.18The enlarged structural schematic diagram of the middle blocking ring 27 is shown in detail.

[0047] In the figure: 1 support plate, 2 water injection assembly, 3 conduit assembly, 4 three-way elbow, 5 nozzle assembly, 6 linkage assembly, 7 drive motor, 8 water injection head, 9 supercharger, 10 mounting plate, 11 connecting rod, 12 eccentric wheel, 13 connector, 14 elastic telescopic rod, 15 sealing sheet, 16 blocking ring, 17 three-way pipe, 18 control valve stem, 19 connecting pipe, 20 telescopic pipe, 21 rotating shaft, 22 turbine, 23 control valve sheet, 24 fixed cylinder, 25 threaded sleeve, 26 fixed ring, 27 blocking ring, 28 connecting seat, 29 rotating ring, 30 threaded cylinder, 31 connecting block, 32 reset spring, 33 push-pull rod, 34 regulating plug, 35 sealing ring, 36 water spraying cylinder, 37 water spraying head, 38 inner cover, 39 filter, 40 water outlet, 41 water inlet, 42 connecting column, 43 rubber disc, 44 rubber ring, 45 rubber ring, 46 incomplete arc rubber plate. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1: Reference Figure 1-Figure 2 , Figure 12-Figure 15 , an agricultural seedling spraying device, comprising a support plate 1, and a nozzle assembly 5 fixedly mounted on the support plate 1;

[0050] The nozzle assembly 5 includes a fixed cylinder 24, a fixed ring 26 is rotatably installed on the upper part of the fixed cylinder 24, and a connecting seat 28 is fixedly installed on the bottom of the fixed cylinder 24. The connecting seat 28 is hollow in design, connected to the fixed cylinder 24, and fixedly connected to the supporting plate 1. An inner cover 38 is fixedly installed on the fixed ring 26, and a plurality of filter screens 39 are fixedly installed on the inner cover 38. A sewage discharge hole is opened on the inner cover 38.

[0051] like Fig.18 As shown, the inner cover 38 is a hollow design, the filter 39 is installed in the hollow position, the drain hole is set between the two hollow positions, and the length of the drain hole is greater than the sum of the lengths of the two hollow positions, ensuring that the impurities scraped off the filter 39 will pass through the drain hole, avoiding the occurrence of impurity residues, and making the impurities cleaned more thoroughly.

[0052] A blocking ring 27 is rotatably mounted on the outside of the inner cover 38, a water spraying tube 36 is fixedly mounted in the fixed cylinder 24, a plurality of water spraying heads 37 are fixedly mounted on the water spraying tube 36, and an adjusting mechanism matched with the water spraying tube 36 is installed between the fixed cylinder 24 and the fixed ring 26.

[0053] The water spray barrel 36 and the fixed ring 26 are rotatably connected by a mechanical seal (which is an existing mature technology and will not be elaborated on here). The water in the fixed barrel 24 will enter the water spray barrel 36 through the fixed ring 26, and then enter the water spray head 37 through the water spray barrel 36, and be sprayed out through the water spray head 37. When spraying out, it will be filtered through the filter screen 39, and impurities in the water will adhere to the filter screen 39.

[0054] The adjusting mechanism includes a rotating ring 29 rotatably mounted on the fixed cylinder 24, a threaded sleeve 25 is fixedly mounted on the rotating ring 29, a threaded cylinder 30 threadably mounted on the bottom of the fixed cylinder 24 and threadedly rotatably connected to the threaded sleeve 25, a connecting block 31 is fixedly mounted on the threaded cylinder 30, a push-pull rod 33 is fixedly mounted on the connecting block 31, an adjusting plug 34 is fixedly mounted on the push-pull rod 33, a return spring 32 is fixedly mounted between the connecting block 31 and the fixed cylinder 24, a sealing ring 35 is fixedly mounted in the fixed ring 26, and the sealing ring 35 is connected to the water spraying cylinder 36.

[0055] Rotating the rotating ring 29 will drive the threaded sleeve 25 fixedly connected thereto to rotate, thereby driving the threaded barrel 30 to move, and the movement of the threaded barrel 30 drives the connecting block 31 fixedly connected thereto to move, thereby driving the push-pull rod 33 to move, and the movement of the push-pull rod 33 drives the adjusting plug 34 to move, thereby changing the distance between the adjusting plug 34 and the sealing ring 35;

[0056] When the spacing changes, the pressure remains unchanged, and the water output remains unchanged, the water output speed increases, thereby changing the water flow speed in the water spray barrel 36, which is used to change the flow rate and impact force of the water sprayed by the water spray head 37, thereby changing the spray range. Before use, the spray range needs to be adjusted according to the irrigation range of agricultural planting.

[0057] Each water sprinkler head 37 is designed to be inclined, and each water sprinkler head 37 is designed to form a certain angle with the water sprinkler barrel 36 in the horizontal direction, and the angle is forty-five degrees. The purpose of the inclined design of the water sprinkler head 37 is to use the water column sprayed by the water sprinkler head 37 to clean the impurities adhering to the filter 39. Multiple water sprinkler heads 37 will form a water curtain. The inclined impact between the water curtain and the filter 39 will impact the impurities on the filter 39 to one side of the water flow, so that the impurities on the filter 39 enter the sewage hole. The purpose of the forty-five-degree angle design is to ensure the impact force while ensuring that the water sprayed by the water sprinkler head 37 reaches a sufficient distance for spray irrigation.

[0058] The interior of the blocking ring 27 is hollow in design, and a plurality of water inlet holes 41 connected to the interior are provided on the blocking ring 27. A plurality of water outlet heads 40 are fixedly installed on the top of the blocking ring 27, and each water outlet head 40 is connected to the interior of the blocking ring 27. Impurities entering the sewage discharge hole will enter the blocking ring 27 through the water inlet holes 41 under the action of the water flow, and then be discharged through the water outlet heads 40, thereby realizing the automatic impurity removal function.

[0059] At this time, the hollow position of the inner cover 38 is completely blocked by the blocking ring 27, and water will not be sprayed from the hollow position. Therefore, water can only be sprayed upward through the water outlet head 40. The water outlet head 40 has a certain inclination angle, which can irrigate the seedlings near the spraying device.

[0060] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 11 , Figure 14-Figure 19 A three-way elbow 4 is fixedly mounted on the support plate 1 , and a water injection assembly 2 is mounted on the three-way elbow 4 ; the water injection assembly 2 includes two mounting plates 10 slidably mounted on the support plate 1 .

[0061] A track is fixedly mounted on the mounting plate 10, and a slot matching the track is provided on the support plate 1 for the mounting plate 10 to slide on the support plate 1, thereby preventing the mounting plate 10 from deflecting and ensuring that the mounting plate 10 keeps sliding in a straight line.

[0062] A supercharger 9 is fixedly mounted on each of the two mounting plates 10, a water injection head 8 is fixedly mounted on each of the two superchargers 9, a connector 13 is fixedly mounted at the bottom of each of the two superchargers 9, both connectors 13 are connected to the three-way elbow 4, and a flow control mechanism is installed between the two connectors 13 and the three-way elbow 4;

[0063] The booster 9 adopts a DL series or IR series booster 9, which can automatically adjust the water pressure according to the irrigation range.

[0064] The flow control mechanism includes a blocking ring 16 fixedly installed inside the three-way elbow 4, a hollow plate fixedly installed at the bottom of the connecting head 13, an elastic telescopic rod 14 fixedly installed on the hollow plate, a sealing sheet 15 matching the blocking ring 16 fixedly installed at the telescopic end of the elastic telescopic rod 14, a sleeve fixedly installed at the bottom of the connecting head 13, and the sleeve is slidably connected to the three-way elbow 4.

[0065] As the two mounting plates 10 move back and forth intermittently (the moving directions of the two mounting plates 10 are opposite), the connecting head 13 will be driven to move, and the connecting head 13 will drive the hollow plate to move, and the sealing sheet 15 will be driven to move under the action of the elastic telescopic rod 14, so that the sealing sheet 15 is separated from or fitted with the sealing ring 16, thereby opening and closing the water inlet channel of the three-way elbow 4, so that the water in the three-way elbow 4 intermittently flows out from the two water outlet holes.

[0066] As the connector 13 moves, the sleeve will be driven to move, which is used to seal the connector 13 and the three-way elbow 4, using a mechanical seal sliding connection (which is an existing mature connection structure and will not be elaborated on here).

[0067] A reciprocating mechanism is installed between the support plate 1 and the two mounting plates 10; the reciprocating mechanism includes a driving motor 7 fixedly installed on the support plate 1, a linkage structure fixedly installed on the driving end of the driving motor 7, an eccentric wheel 12 rotatably installed on the support plate 1, two sliding grooves are provided on the eccentric wheel 12, a pillar is slidably installed in each of the two sliding grooves, a connecting rod 11 is rotatably installed on each of the two pillars, and the two connecting rods 11 are respectively fixedly connected to the corresponding mounting plates 10.

[0068] The driving end of the driving motor 7 rotates to drive the eccentric wheel 12 to rotate through the linkage structure (which is an existing mechanical transmission structure, generally composed of multiple gears, which will not be described in detail here). The rotation of the eccentric wheel 12 drives the sliding groove to rotate. The rotation of the sliding groove presses the support so that the support drives the mounting plate 10 to move, thereby changing the position of the mounting plate 10. Figure 5 When the eccentric wheel 12 rotates clockwise, the shorter connecting rod 11 moves up, while the longer connecting rod 11 moves down, thereby realizing the synchronous reverse movement of the two mounting plates 10.

[0069] By setting up two reciprocating and alternating water injection heads 8 to inject water into the nozzle assembly 5, a certain pulse effect will be generated. The impact vibration of the pulse is used to clean the impurities on the filter 39 in the nozzle assembly 5, thereby improving the impurity cleaning efficiency on the filter 39. At the same time, the pulse water injection method can effectively reduce the adhesion of impurities on the filter 39, which can reduce the spraying obstruction of the nozzle assembly 5, thereby improving the spraying efficiency.

[0070] A catheter assembly 3 is installed on the water injection assembly 2, and the catheter assembly 3 is connected to the connecting seat 28; the catheter assembly 3 includes a three-way pipe 17, one end of the three-way pipe 17 is connected to the connecting seat 28, and a control valve plate 23 is installed in the three-way pipe 17 through a rotating shaft. The rotating shaft passes through and extends out of the three-way pipe 17, and a control valve stem 18 is fixedly installed on the rotating shaft. Rotating the control valve stem 18 will drive the control valve plate 23 to rotate, perform a diversion operation on the three-way elbow 4, and change the flow channel in the three-way elbow 4.

[0071] The other two ends of the three-way pipe 17 are fixedly connected with a connecting pipe 19, and a telescopic pipe 20 is fixedly installed on the two connecting pipes 19. The use of the telescopic pipe 20 here can play a certain buffering role, making the connection between the connecting pipe 19 and the water injection head 8 more stable.

[0072] The two telescopic tubes 20 are connected to the corresponding water injection heads 8, and a linkage assembly 6 is installed between the three-way pipe 17 and the fixing ring 26 and the blocking ring 27;

[0073] The linkage assembly 6 includes a rotating shaft 21 that penetrates and is rotatably installed in the tee pipe 17, a turbine 22 is fixedly installed on the rotating shaft 21, and the turbine 22 is located inside the tee pipe 17. A connecting column 42 is fixedly installed on the rotating shaft 21, and a rubber disc 43 is fixedly installed on one end of the connecting column 42 away from the rotating shaft 21, and a rubber ring 45 that matches the rubber disc 43 is fixedly installed on the fixing ring 26;

[0074] A frame is fixedly mounted on the top of the connecting column 42 , an incomplete arc-shaped rubber plate 46 is fixedly mounted on the frame, and a rubber ring 44 matching the incomplete arc-shaped rubber plate 46 is fixedly mounted on the blocking ring 27 .

[0075] The arc diameter of the incomplete arc rubber plate 46 is larger than the diameter of the rubber disc 43 , and a connecting sleeve is fixedly mounted on the fixing cylinder 24 , and the connecting sleeve is rotationally connected to the connecting column 42 to limit the connecting column 42 and prevent the connecting column 42 from deflecting.

[0076] The two flow passages will change the direction of the turbine 22 , thereby achieving forward and reverse rotation of the turbine 22 .

[0077] The rotation of the turbine 22 drives the rotating shaft 21 to rotate, thereby driving the connecting column 42 to rotate. The rotation of the connecting column 42 drives the rubber disc 43 to rotate, thereby driving the rubber ring 45 abutting against the rubber disc 43 to rotate, thereby driving the fixing ring 26 to rotate. The rotation of the fixing ring 26 drives the inner cover 38 to rotate.

[0078] At the same time, the rotation of the connecting column 42 drives the incomplete arc-shaped rubber plate 46 to rotate, and the rotation of the incomplete arc-shaped rubber plate 46 drives the rubber ring 44 matched therewith to rotate, thereby driving the blocking ring 27 to rotate.

[0079] Since the arc diameter of the incomplete arc rubber plate 46 is larger than the diameter of the rubber disk 43 , the rotation speed of the blocking ring 27 is greater than the rotation speed of the fixing ring 26 , which will cause the blocking ring 27 and the fixing ring 26 to produce relative rotational displacement, and the blocking ring 27 will gradually block the hollow position on the inner cover 38 .

[0080] The specific operation steps of this device are as follows:

[0081] First, lay ground keels in the planting area, then install the device on the keels at equal intervals, and connect the three-way elbow 4 to the external water source.

[0082] Then, the water flow rate in the fixing ring 26 is adjusted according to the area of ​​the planting area. The rotating ring 29 is rotated to drive the threaded sleeve 25 fixedly connected thereto to rotate, thereby driving the threaded barrel 30 to move. The movement of the threaded barrel 30 drives the connecting block 31 fixedly connected thereto to move, thereby driving the push-pull rod 33 to move. The movement of the push-pull rod 33 drives the adjusting plug 34 to move, thereby changing the distance between the adjusting plug 34 and the sealing ring 35.

[0083] When the spacing changes, the pressure remains unchanged, and the water output remains unchanged, the water output speed increases, thereby changing the water flow speed in the water spray barrel 36, which is used to change the flow rate and impact force of the water sprayed by the water spray head 37, thereby changing the spray range. Before use, the spray range needs to be adjusted according to the irrigation range of agricultural planting.

[0084] Water enters the booster 9 through the three-way elbow 4, and then enters the connecting seat 28 through the water injection head 8. The water in the connecting seat 28 will enter the fixed cylinder 24, and then be sprayed out through the water spray head 37 on the water spray cylinder 36. The sprayed water will be filtered through the filter 39.

[0085] During the spraying process, the driving motor 7 is started, and the rotation of the driving end of the driving motor 7 drives the eccentric wheel 12 to rotate through the linkage structure. The rotation of the eccentric wheel 12 drives the sliding groove to rotate. The rotation of the sliding groove presses the support so that the support drives the mounting plate 10 to move, thereby changing the position of the mounting plate 10. Figure 5 When the eccentric wheel 12 rotates clockwise, the shorter connecting rod 11 moves up, while the longer connecting rod 11 moves down, thereby realizing the synchronous reverse movement of the two mounting plates 10.

[0086] As the two mounting plates 10 intermittently reciprocate, the connecting head 13 is driven to move, and the connecting head 13 drives the hollow plate to move, and the sealing sheet 15 is driven to move under the action of the elastic telescopic rod 14, so that the sealing sheet 15 is separated from or fitted with the sealing ring 16, thereby opening and closing the water inlet channel of the three-way elbow 4, so that the water in the three-way elbow 4 intermittently flows out from the two water outlets.

[0087] The water in the three-way elbow 4 drives the turbine 22 to rotate, and the rotation of the turbine 22 drives the rotating shaft 21 to rotate, thereby driving the connecting column 42 to rotate, and the rotation of the connecting column 42 drives the rubber disk 43 to rotate, thereby driving the rubber ring 45 that abuts against the rubber disk 43 to rotate, thereby driving the fixing ring 26 to rotate, and the rotation of the fixing ring 26 drives the inner cover 38 to rotate;

[0088] At the same time, the rotation of the connecting column 42 drives the incomplete arc-shaped rubber plate 46 to rotate, and the rotation of the incomplete arc-shaped rubber plate 46 drives the rubber ring 44 matched therewith to rotate, thereby driving the blocking ring 27 to rotate.

[0089] Since the arc diameter of the incomplete arc rubber plate 46 is larger than the diameter of the rubber disk 43 , the rotation speed of the blocking ring 27 is greater than the rotation speed of the fixing ring 26 , which will cause the blocking ring 27 and the fixing ring 26 to produce relative rotational displacement, and the blocking ring 27 will gradually block the hollow position on the inner cover 38 .

[0090] The water column sprayed by the sprinkler head 37 is used to clean the impurities adhering to the filter 39. Multiple sprinkler heads 37 will form a water curtain. The inclined impact between the water curtain and the filter 39 will impact the impurities on the filter 39 to one side of the water flow, so that the impurities on the filter 39 enter the sewage hole. The purpose of the forty-five-degree angle design is to ensure the impact force while ensuring that the water sprayed by the sprinkler head 37 reaches a sufficient distance for spray irrigation.

[0091] The impurities entering the drainage hole will enter the blocking ring 27 through the water inlet hole 41 under the action of the water flow, and then be discharged through the water outlet head 40, thereby realizing the automatic impurity removal function.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An agricultural seedling spraying device, comprising a support plate, characterized in that: Also included is a nozzle assembly fixedly mounted on the support plate; The nozzle assembly includes a fixed cylinder, a fixed ring is rotatably mounted on the upper part of the fixed cylinder, and a connecting seat is fixedly mounted on the bottom of the fixed cylinder, the connecting seat is communicated with the fixed cylinder, the connecting seat is fixedly connected to the support plate, an inner cover is fixedly mounted on the fixed ring, a plurality of filter screens are fixedly mounted on the inner cover, and a sewage discharge hole is opened on the inner cover; A blocking ring is rotatably mounted on the outside of the inner cover, a water spraying cylinder is fixedly mounted in the fixed cylinder, a plurality of water spraying heads are fixedly mounted on the water spraying cylinder, and an adjusting mechanism matched with the water spraying cylinder is mounted between the fixed cylinder and the fixed ring; A three-way elbow is fixedly installed on the support plate, a water injection assembly is installed on the three-way elbow, a conduit assembly is installed on the water injection assembly, and the conduit assembly is connected to the connecting seat; The catheter assembly includes a three-way pipe, one end of which is connected to the connecting seat, a control valve plate is installed in the three-way pipe through a rotating shaft, the rotating shaft passes through and extends out of the three-way pipe, a control valve stem is fixedly installed on the rotating shaft, the other two ends of the three-way pipe are fixedly connected to a connecting pipe, a telescopic pipe is fixedly installed on the two connecting pipes, the two telescopic pipes are connected to the corresponding water injection heads, and a linkage assembly is installed between the three-way pipe and the fixed ring and the blocking ring; The linkage assembly includes a rotating shaft that is rotatably installed in the tee pipe, a turbine is fixedly installed on the rotating shaft, the turbine is located inside the tee pipe, a connecting column is fixedly installed on the rotating shaft, a rubber disc is fixedly installed on one end of the connecting column away from the rotating shaft, and a rubber ring that matches the rubber disc is fixedly installed on the fixing ring; A frame is fixedly installed on the top of the connecting column, an incomplete arc-shaped rubber plate is fixedly installed on the frame, and a rubber ring matching the incomplete arc-shaped rubber plate is fixedly installed on the blocking ring; The arc diameter of the incomplete arc-shaped rubber plate is larger than the diameter of the rubber disc, and a connecting sleeve is fixedly installed on the fixing cylinder, and the connecting sleeve is rotatably connected to the connecting column; The interior of the blocking ring is hollow in design, and a plurality of water inlet holes connected to the interior are opened on the blocking ring. A plurality of water outlets are fixedly installed on the top of the blocking ring, and each water outlet is connected to the interior of the blocking ring.

2. The agricultural seedling spraying device according to claim 1, characterized in that: The adjusting mechanism includes a rotating ring rotatably mounted on a fixed cylinder, a threaded sleeve fixedly mounted on the rotating ring, a threaded cylinder slidably mounted on the bottom of the fixed cylinder and threadedly rotatably connected to the threaded sleeve, a connecting block fixedly mounted on the threaded cylinder, a push-pull rod fixedly mounted on the connecting block, an adjusting plug fixedly mounted on the push-pull rod, a reset spring fixedly mounted between the connecting block and the fixed cylinder, a sealing ring fixedly mounted in the fixed ring, and the sealing ring is connected to the water spray cylinder.

3. The agricultural seedling spraying device according to claim 1, characterized in that: Each sprinkler head is designed with an inclined angle, and each sprinkler head is designed to form a certain angle with the sprinkler barrel in the horizontal direction, and the angle is forty-five degrees.

4. The agricultural seedling spraying device according to claim 1, characterized in that: The water injection assembly includes two mounting plates slidably mounted on a supporting plate, a supercharger is fixedly mounted on each of the two mounting plates, a water injection head is fixedly mounted on each of the two superchargers, a connecting head is fixedly mounted on the bottom of each of the two superchargers, the two connecting heads are connected to a three-way elbow, a flow control mechanism is installed between the two connecting heads and the three-way elbow, and a reciprocating mechanism is installed between the supporting plate and the two mounting plates.

5. The agricultural seedling spraying device according to claim 4, characterized in that: The flow control mechanism includes a sealing ring fixedly installed inside the three-way elbow, a hollow plate fixedly installed at the bottom of the connector, an elastic telescopic rod fixedly installed on the hollow plate, a sealing sheet matching the sealing ring fixedly installed at the telescopic end of the elastic telescopic rod, a sleeve fixedly installed at the bottom of the connector, and a sliding connection between the sleeve and the three-way elbow.

6. The agricultural seedling spraying device according to claim 4, characterized in that: The reciprocating mechanism includes a driving motor fixedly mounted on a support plate, a linkage structure fixedly mounted on a driving end of the driving motor, an eccentric wheel rotatably mounted on the support plate, two sliding grooves are provided on the eccentric wheel, a pillar is slidably mounted in each of the two sliding grooves, a connecting rod is rotatably mounted on each of the two pillars, and the two connecting rods are fixedly connected to the corresponding mounting plates respectively.

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