Liquid fertilizer spraying device suitable for fertilization tank car

Abstract

The invention relates to a liquid fertilizer spraying device suitable for a fertilization tank car, and belongs to the field of agricultural machinery, the liquid fertilizer spraying device comprises a fertilizer conveying pipeline, the rear end of the fertilizer conveying pipeline is provided with a fertilization tank car butt joint port, and the front end is provided with a nozzle; wherein organic liquid fertilizer is stored in the fertilization tank car, the fertilization tank car butt joint port is used for being in butt joint with the fertilization tank car and receiving the organic liquid fertilizer in the fertilization tank car, and the spray head is used for spraying the organic liquid fertilizer in the fertilizer conveying pipeline outwards; a rotating mechanism is arranged on the fertilizer conveying pipeline, and the rotating mechanism can enable the spray head to rotate relative to the rear end of the fertilizer conveying pipeline and is used for spraying the organic liquid fertilizer outwards in a rotating manner; a pitching adjusting mechanism is further arranged on the fertilizer conveying pipeline, and the pitching adjusting mechanism can enable the spray head to pitch upwards or downwards, so that the organic liquid fertilizer is sprayed outwards at an elevation angle or a depression angle.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a liquid fertilizer spraying device suitable for a fertilizer tank truck. Background Art

[0002] In agricultural production, the type of cultivated land has an important impact on crop planting and soil management. Due to its flat terrain, plain cultivated land is very suitable for the use of large agricultural machinery for farming and crop management, which not only improves the operation efficiency, but also helps to achieve precise fertilization and irrigation, thereby ensuring the stability and sustainability of food production. In addition, mechanized operations in plain areas can also reduce labor costs and improve crop yields and quality.

[0003] In contrast, cultivated land in mountainous and hilly areas faces more challenges. The complex terrain and steep slopes in these areas limit the use of agricultural machinery, making soil improvement and crop management more difficult. Especially when spraying organic liquid fertilizer, since it is difficult for machinery to reach low-lying and hilly areas, when organic liquid fertilizer needs to be transported to the land that needs fertilization, more manpower is needed to carry it, which not only increases labor intensity but also increases production costs. Therefore, for agricultural production in low-lying and hilly areas, it is necessary to explore agricultural technologies and management methods that are more adapted to the characteristics of the terrain to improve soil structure, increase soil fertility and crop yields, and achieve sustainable organic farming.

[0004] In short, there is currently a lack of equipment that can transport organic liquid fertilizer to designated land without the need for manual handling. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a liquid fertilizer injection device suitable for a fertilizer tanker, so as to solve the problem that there is currently a lack of equipment for transporting organic liquid fertilizer to a designated land without manual handling.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The invention discloses a liquid fertilizer spraying device suitable for a fertilizer tanker, comprising a fertilizer delivery pipeline, a fertilizer tanker docking port is arranged at the rear end of the fertilizer delivery pipeline, and a spray head is arranged at the front end;

[0008] The fertilizer tank truck stores organic liquid fertilizer, the fertilizer tank truck docking port is used to dock with the fertilizer tank truck and receive the organic liquid fertilizer in the fertilizer tank truck, and the nozzle is used to spray the organic liquid fertilizer in the fertilizer delivery pipeline outward;

[0009] The fertilizer delivery pipeline is provided with a rotating mechanism, which can cause the spray head to rotate relative to the rear end of the fertilizer delivery pipeline, so as to realize the spraying of the organic liquid fertilizer outward in a rotating manner;

[0010] The fertilizer delivery pipeline is also provided with a pitch adjustment mechanism, which can make the spray head tilt upward or downward, so as to realize spraying the organic liquid fertilizer outward at an elevation angle or a depression angle.

[0011] Preferably, the fertilizer delivery pipeline includes a fertilizer tanker docking pipe section, a curved pipe section and a pitch adjustment pipe section. The fertilizer tanker docking pipe section is docked with the rear end of the curved pipe section through the rotating mechanism, and the front end of the curved pipe section and the nozzle are respectively docked and connected with the two ends of the pitch adjustment pipe section, thereby forming a continuous fertilizer delivery pipeline.

[0012] Preferably, the bottom port and the top port of the rotating mechanism are respectively provided with a fixed flange and a rotating flange, the rear end of the fertilizer tanker docking pipe section is provided with a fertilizer tanker docking port for docking the fertilizer tanker, and the front end is fixedly connected to the fixed flange of the rotating mechanism;

[0013] The two ends of the pitch adjustment pipe section are respectively provided with a left flange and a right flange, the rear end of the curved pipe section is fixed on the rotating flange of the rotating mechanism, and the front end is connected to the left flange of the pitch adjustment pipe section through a flange;

[0014] The nozzle is provided with a nozzle connecting pipe, the rear end of which is provided with a flange, and the flange at the rear end of the nozzle connecting pipe of the nozzle is butted with the right flange of the pitch adjustment pipe section through a flange;

[0015] The pitch adjustment mechanism is arranged on the pitch adjustment pipe section.

[0016] Preferably, the rotating mechanism comprises a cylinder, a fixed flange, a rotating flange and a transmission mechanism.

[0017] The fixed flange and the rotating flange are respectively fixedly and movably sleeved on the outer sides of the lower part and the upper part of the cylinder;

[0018] The transmission mechanism comprises a motor, the transmission shaft of the motor is fixedly connected to the rotating flange;

[0019] Wherein, the fertilizer delivery pipeline includes a fertilizer tanker butt joint pipe section and a bend pipe section, the fertilizer tanker butt joint pipe section is butt jointed via a fixed flange, the bend pipe section is butt jointed via a rotating flange, and the fertilizer tanker butt joint pipe section is connected to the bend pipe section via a cylinder of a rotating mechanism;

[0020] When the motor is started, the power of the motor is transmitted to the rotating flange, and the rotating flange rotates relative to the fixed flange, thereby adjusting the injection direction of the liquid fertilizer injection device.

[0021] Preferably, the transmission mechanism further comprises a worm and a worm wheel, the transmission shaft of the motor is connected to the worm, and the worm and the worm wheel are meshed through gears;

[0022] The rotating flange comprises a flange portion and a vertical cylinder portion, and the end of the flange portion is vertically butted with the vertical cylinder portion and formed integrally;

[0023] Wherein, the rotating flange is movably sleeved on the outer side of the upper part of the cylinder through the vertical cylinder part;

[0024] The flange part of the rotating flange is located above the worm gear, and the worm gear and the flange part of the rotating flange are fixedly connected by bolts.

[0025] Preferably, a worm gear box is disposed outside the worm;

[0026] The inner wall of the vertical cylindrical portion of the rotating flange is provided with a lubricating oil hole, the lubricating oil hole is connected with the gap between the vertical cylindrical portion of the rotating flange and the cylindrical body, and a lubricating oil nozzle is provided in the lubricating oil hole, and the lubricating oil nozzle faces the worm gear box;

[0027] The rotating mechanism is also equipped with a lubricating oil sealing assembly.

[0028] Bearings are respectively arranged at both ends between the worm and the worm gear box.

[0029] The lubricating oil sealing assembly comprises a circular sealing ring, a sealing gasket and a star-shaped cross-section sealing ring, the circular sealing ring and the star-shaped cross-section sealing ring are arranged between the side wall of the bearing and the worm gear box, and the circular sealing ring and the star-shaped cross-section sealing ring are separated by the sealing gasket;

[0030] A lip-shaped sealing ring is respectively arranged at both ends of the gap between the vertical cylindrical body portion of the rotating flange and the cylindrical body.

[0031] Preferably, the rotating mechanism is also provided with a liquid fertilizer sealing device.

[0032] The liquid fertilizer sealing device comprises an inner liquid fertilizer sealing component and an outer liquid fertilizer sealing component.

[0033] The inner liquid fertilizer sealing assembly comprises a first inner sealing ring and a second inner sealing ring.

[0034] The port of the flange portion of the rotating flange extends toward the center of the cylinder to form an inner flange, a sealing ring groove is provided on the upper end surface of the cylinder, and the inner flange of the outer port of the rotating flange and the sealing ring groove of the upper port of the cylinder form a closed annular groove with a notch, a first inner sealing ring and a second inner sealing ring are provided in the closed annular groove, and the second inner sealing ring includes a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected;

[0035] Wherein, the vertical portion of the second inner sealing ring is close to the first inner sealing ring, and the horizontal portion of the second inner sealing ring is arranged at the notch of the closed annular groove;

[0036] The external liquid fertilizer sealing assembly comprises a first external sealing ring and a second external sealing ring.

[0037] Flanges are welded at both ends of the curved pipe section, and the flange at the bottom end of the curved pipe section is butted against the flange portion of the rotating flange;

[0038] The outer wall of the flange portion of the rotating flange is provided with an outer sealing ring groove, a first outer sealing ring and a second outer sealing ring are provided in the outer sealing ring groove, the second outer sealing ring comprises a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected;

[0039] Among them, the vertical part of the second outer sealing ring is close to the first outer sealing ring, and the horizontal part of the second outer sealing ring is arranged on the outer wall of the flange part of the rotating flange, which is used to seal the connection between the flange part of the rotating flange and the flange at the bottom end of the bent pipe section.

[0040] Preferably, the pitch adjustment mechanism is arranged on the pitch adjustment pipe section and comprises a bellows.

[0041] An upper push rod is arranged above the bellows.

[0042] The upper push rod is a telescopic rod that can extend forward or retract backward, and the upper push rod is configured with a stepper motor. When the output shaft of the stepper motor moves forward, the upper push rod extends forward, causing the nozzle to lean forward so as to spray the organic liquid fertilizer outward at a depression angle; when the output shaft of the stepper motor moves backward, the upper push rod retracts backward, causing the nozzle to tilt backward so as to spray the organic liquid fertilizer outward at an elevation angle.

[0043] Preferably, a left-hand spiral arm and a right-hand spiral arm are respectively arranged on the left and right sides of the bellows;

[0044] The left-hand swing arm and the right-hand swing arm each include a left rod and a right rod, and the left rod is pivotally connected to the right rod via a pivot;

[0045] Once the front end of the bellows is bent relative to the rear end, the left rod and the right rod of the left and right rotating arms are bent toward the pivot at the same time, guarding the left and right sides of the bellows to prevent the bellows from deviating to the left or right.

[0046] Preferably, the spray head comprises a distribution head, a distribution head adjustment disk and a truncated cone nozzle pipe.

[0047] A semi-spherical groove is arranged inside the distribution head, and a plurality of fertilizer discharging areas and a plurality of non-fertilizer discharging areas are arranged on the groove wall of the semi-spherical groove, and a plurality of fertilizer discharging holes are densely distributed in the fertilizer discharging area;

[0048] The distribution head adjustment disk is a circular disk, and a plurality of solid parts and hollow parts are arranged on the distribution head adjustment disk, the solid parts and hollow parts are arranged at intervals, and the plurality of solid parts and hollow parts correspond to the plurality of fertilizer discharging areas and non-fertilizer discharging areas of the distribution head respectively;

[0049] The left end of the truncated cone nozzle pipe is large, and the right end is small, forming a truncated cone shape;

[0050] The front end of the distribution head and the rear end of the truncated cone nozzle pipe are rotatably arranged at the two ends of the distribution head adjustment disk, respectively, exposing the front end port of the truncated cone nozzle pipe as a nozzle, so as to ensure that the multiple real parts and the empty parts of the distribution head adjustment disk can be respectively opposite to or staggered with the multiple fertilizer output areas and the multiple non-fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head by rotating the distribution head adjustment disk. When the multiple empty parts of the distribution head adjustment disk are opposite to the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head, the nozzle is fully turned on; when the multiple empty parts of the distribution head adjustment disk are staggered with the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head, the nozzle is not fully turned on, thereby realizing the adjustment of the liquid fertilizer injection flow rate.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] (i) The present invention discloses a liquid fertilizer spraying device suitable for a fertilizer tank truck, comprising a fertilizer delivery pipeline, a fertilizer tank truck docking port is provided at the rear end of the fertilizer delivery pipeline, and a spray head is provided at the front end; wherein organic liquid fertilizer is stored in the fertilizer tank truck, the fertilizer tank truck docking port is used to dock with the fertilizer tank truck and receive the organic liquid fertilizer in the fertilizer tank truck, and the spray head is used to spray the organic liquid fertilizer in the fertilizer delivery pipeline outward; a rotating mechanism is provided on the fertilizer delivery pipeline, and the rotating mechanism can make the spray head rotate relative to the rear end of the fertilizer delivery pipeline, so as to realize the outward spraying of the organic liquid fertilizer in a rotating manner; a pitch adjustment mechanism is also provided on the fertilizer delivery pipeline, and the pitch adjustment mechanism can make the spray head tilt upward or tilt downward, so as to realize the outward spraying of the organic liquid fertilizer at an elevation angle or a depression angle.

[0053] (ii) The present invention discloses a liquid fertilizer injection device suitable for a fertilizer tank truck, comprising a rotating mechanism, which is arranged on a fertilizer delivery pipeline of the liquid fertilizer injection device, and comprises a cylinder, a fixed flange, a rotating flange and a transmission mechanism, wherein the fixed flange and the rotating flange are respectively fixedly and movably sleeved on the outer sides of the lower part and the upper part of the cylinder; the transmission mechanism comprises a motor, and the transmission shaft of the motor is fixedly connected to the rotating flange; wherein the fertilizer delivery pipeline comprises a fertilizer tank truck docking pipe section and a curved pipe section, the fertilizer tank truck docking pipe section is docked through the fixed flange, the curved pipe section is docked through the rotating flange, and the fertilizer tank truck docking pipe section is connected to the curved pipe section through the cylinder of the rotating mechanism; when the motor is started, the power of the motor is transmitted to the rotating flange, and the rotating flange rotates relative to the fixed flange, thereby realizing the adjustment of the injection direction of the liquid fertilizer injection device, which can significantly improve the fertilization area and fertilization flexibility of organic liquid fertilizer.

[0054] (III) The present invention discloses a liquid fertilizer spraying device suitable for a fertilizer tank truck, comprising a pitch adjustment mechanism, which is arranged on the liquid fertilizer spraying device, the liquid fertilizer spraying device comprising a pitch adjustment pipe section, the pitch adjustment pipe section comprising a left push rod support pipe and a right push rod support pipe, and a spray head is arranged at the front end of the liquid fertilizer spraying device; the pitch adjustment mechanism is arranged on the pitch adjustment pipe section, comprising a bellows, and the left push rod support pipe and the right push rod support pipe are butt-jointed through the bellows; an upper push rod is arranged above the bellows, the upper push rod is a telescopic rod that can be extended forward or retracted backward, and the upper push rod is arranged with a stepping motor, when the output shaft of the stepping motor moves forward, the upper push rod extends forward, so that the spray head tilts forward, so as to realize the outward spraying of organic liquid fertilizer at a pitch angle; when the output shaft of the stepping motor moves backward, the upper push rod retracts backward, so that the spray head tilts backward, so as to realize the outward spraying of organic liquid fertilizer at an elevation angle.

[0055] (IV) The present invention discloses a liquid fertilizer injection device suitable for a fertilizer tank truck, comprising a nozzle, wherein the nozzle comprises a distribution head, a distribution head adjustment disk and a truncated cone nozzle pipe, wherein the front end of the distribution head and the rear end of the truncated cone nozzle pipe are rotatably arranged at the two ends of the distribution head adjustment disk, respectively. By rotating the distribution head adjustment disk, the multiple solid parts and the empty parts of the distribution head adjustment disk can be respectively aligned with or staggered with the multiple fertilizer output areas and the multiple non-fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head. When the multiple empty parts of the distribution head adjustment disk are aligned with the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head, the nozzle is fully turned on; when the multiple empty parts of the distribution head adjustment disk are staggered with the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head, the nozzle is not fully turned on, thereby realizing the adjustment of the liquid fertilizer injection flow rate.

[0056] (V) The present invention discloses a liquid fertilizer spraying device suitable for a fertilizer tanker. For mountainous and hilly farmland where it is impossible to apply organic liquid fertilizer normally, the device only needs to be installed on a tanker to be transported to mountainous and hilly areas, and the fertilizer coverage area, spraying distance and fertilizer type can be adjusted. The fertilization efficiency and uniformity can be improved through plane rotation and elevation angle adjustment. The liquid fertilizer spraying device suitable for a fertilizer tanker disclosed by the present invention can effectively apply organic liquid fertilizer to farmland, prevent land desertification, improve soil structure, increase soil fertility and crop yield, and achieve sustainable organic planting. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is a rear view of the tail end of the fertilizer tanker provided in Example 1 of the present invention;

[0058] Figure 2 is Figure 1 Schematic diagram of the rear end of the fertilizer tanker after the liquid fertilizer injection device is installed on the back.

[0059] Figure 3 1 is a front view of a liquid fertilizer spraying device provided in Example 2 of the present invention equipped with a spray head;

[0060] Figure 4 yes Figure 3 A top view of

[0061] Figure 5 is a three-dimensional view of the rotating mechanism provided by Example 3 of the present invention;

[0062] Figure 6 is a top view of the rotating mechanism provided in Example 3 of the present invention;

[0063] Figure 7 yes Figure 6 Sectional view along AA direction;

[0064] Figure 8 is a side view of the rotating mechanism provided in Example 3 of the present invention;

[0065] Fig. 9 yes Figure 8 Cross-sectional view along the BB axis.

[0066] Fig.10 is a top view of the pitch adjustment mechanism provided by Embodiment 4 of the present invention when it is in a normal state;

[0067] Fig.11 yes Figure 5 Front view of;

[0068] Fig.12 yes Figure 5 Right view of;

[0069] Fig.13is a front view of the pitch adjustment mechanism provided by Embodiment 4 of the present invention when it is in a downward pitch state;

[0070] Fig.14 yes Fig.13 Right view of .

[0071] Fig.15 is a side view of a nozzle provided in Example 5 of the present invention;

[0072] Fig.16 yes Fig.15 A front view of the dispensing head in FIG.

[0073] Fig.17 yes Fig.15 Front view of the dispenser head adjustment disk.

[0074] Fig.18 is a side view of a nozzle with a spiral nozzle provided in Example 6 of the present invention;

[0075] Fig.19 yes Fig.18 Right side view of the sprinkler head with spiral nozzle;

[0076] Fig. 20 yes Fig.18 A cross-sectional view along the longitudinal direction;

[0077] Fig.21 yes Fig.18 A perspective view along the longitudinal direction.

[0078] Fig. 22 Schematic diagram of a liquid fertilizer spraying device with a spray head having a spiral nozzle provided in Example 6 of the present invention;

[0079] Fig.23 yes Fig. 22 A schematic diagram of the structure of the liquid fertilizer injection device when the spiral nozzle is tilted downward to a depression angle of 30 degrees.

[0080] Description of reference numerals: 100 - fertilizer tanker, 101 - fertilizer storage tank, 102 - discharge pipe, 103 - fertilizer injection docking port, 104 - injection switch valve, 105 - left emptying valve, 106 - right emptying valve;

[0081] 1-fertilizer delivery pipeline, 10-fertilizer tanker docking port, 11-fertilizer tanker docking pipe section, 12-bend pipe section, 13-pitch adjustment pipe section, 131-left flange, 1310-left flange, 132-right flange; 1320-right flange;

[0082] 2-sprinkler, 20-sprinkler connecting pipe, 21-distribution head, 210-first main hole for fertilizer outlet, 211-small hole for fertilizer outlet; 22-distribution head adjustment plate, 220-second main hole for fertilizer outlet; 23-truncated cone nozzle pipe, 24-inner wire hoop sleeve, 25-spiral nozzle;

[0083] 3-rotating mechanism, 30-cylinder, 31-fixing flange, 310-fixing plate; 32-rotating flange, 320-inner flange, 321-flange portion, 322-vertical cylinder portion; 33-protective cover; 34-transmission mechanism; 340-worm gear box, 3400-transmission box connecting bolts; 341-motor, 3410-motor connecting bolts; 343-worm; 343-worm wheel, 3430-bolt hole; 35-ball, 350-ball insertion hole, 351-ball liner, 352-liner set screw; 36-lubricating oil nozzle; 37-bearing, 371-circular sealing ring, 372-sealing gasket, 373-star-section sealing ring, 374-lip sealing ring; 381-first inner sealing ring, 382-second inner sealing ring, 391-first outer sealing ring, 392-second outer sealing ring;

[0084] 4-pitch adjustment mechanism, 40-bellows, 400-clamp, 401-clamp fixing screw; 41-upper push rod 410-stepping motor, 411-left ear plate, 412-right ear plate, 413-push rod fixing bolt; 42-left swing arm, 43-right swing arm; 50-pivot, 51-left rod, 52-right rod, 53-bending plate, 530-swing arm fixing screw.

[0085] The “-” mentioned above means “is”. DETAILED DESCRIPTION

[0086] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0087] It should be noted that the "front end" in the present invention refers to the end pointing to the nozzle 2 or the end where the nozzle 2 is located on the fertilizer delivery pipeline 1, and the "rear end" refers to the end pointing to the fertilizer tanker docking port 10 or the end where the fertilizer tanker docking port 10 is located on the fertilizer delivery pipeline 1. Similarly, "front" refers to the direction pointing to the nozzle 2, and "rear" refers to the direction pointing to the fertilizer tanker docking port 10.

[0088] In order to solve the problem of the current lack of equipment for transporting organic liquid fertilizer to designated land without manual transportation, the present invention discloses a liquid fertilizer spraying device suitable for a fertilizer tank truck, which is arranged on the fertilizer tank truck and comprises a fertilizer delivery pipeline, wherein a fertilizer tank truck docking port is arranged at the rear end of the fertilizer delivery pipeline and a spray head is arranged at the front end; wherein the organic liquid fertilizer is stored in the fertilizer tank truck, the fertilizer tank truck docking port is used to dock with the fertilizer tank truck and receive the organic liquid fertilizer in the fertilizer tank truck, and the spray head is used to spray the organic liquid fertilizer in the fertilizer delivery pipeline outwardly; a rotating mechanism is arranged on the fertilizer delivery pipeline, and the rotating mechanism can make the spray head rotate relative to the rear end of the fertilizer delivery pipeline, so as to realize the outward spraying of the organic liquid fertilizer in a rotating manner; and a pitch adjustment mechanism is also arranged on the fertilizer delivery pipeline, and the pitch adjustment mechanism can make the spray head tilt upward or tilt downward, so as to realize the outward spraying of the organic liquid fertilizer at an elevation angle or a depression angle.

[0089] Embodiment 1: A fertilizer tanker

[0090] Embodiment 1 of the present invention provides a fertilizer tanker, and its structure is described in detail below with reference to the accompanying drawings.

[0091] refer to Figure 1 and Figure 2 The fertilizer tanker 100 is a liquid fertilizer transport tanker, on which a fertilizer storage tank 101 is provided, and organic liquid fertilizer is stored in the fertilizer storage tank 101. A discharge pipe 102 is provided on the tank wall of the fertilizer storage tank 101, and the feed end of the discharge pipe 102 is connected to the discharge port of the fertilizer storage tank 101, and the discharge end of the discharge pipe 102 is provided at the rear end of the fertilizer tanker 100.

[0092] The organic liquid fertilizer in the fertilizer storage tank 101 can be transported from the discharge port of the fertilizer storage tank 101 to the feed end of the discharge pipe 102 , and reach the discharge end of the discharge pipe 102 through the discharge pipe 102 .

[0093] In order to spray out the organic liquid fertilizer in the fertilizer tanker 100 , a fertilizer spraying docking port 103 is provided at the discharge end of the discharge pipe 102 for docking with a liquid fertilizer spraying device.

[0094] As is common knowledge in the art, in order to control the output of the organic liquid fertilizer from the fertilizer injection docking port 103 , an injection switch valve 104 is provided on the pipeline where the fertilizer injection docking port 103 is located.

[0095] In order to facilitate the emptying of the organic liquid fertilizer in the discharge pipe 102, the discharge end of the discharge pipe 102 also includes a left emptying valve 105 and a right emptying valve 106, and the left emptying valve 105 and the right emptying valve 106 are respectively located on the left and right sides of the lower part of the tail end of the fertilizer tanker 100, and the fertilizer injection docking port 103 is located at the upper part of the tail end of the fertilizer tanker 100, and the fertilizer injection docking port 103, the left emptying valve 105 and the right emptying valve 106 are respectively connected to the discharge end of the discharge pipe 102.

[0096] The connection relationship between the fertilizer injection docking port 103, the left drain valve 105 and the right drain valve 106 at the tail end of the fertilizer tanker 100 and the discharge end of the discharge pipe 102 is as follows: Figure 2 shown.

[0097] Specifically, the fertilizer storage tank 101 and the discharge pipe 102 of the fertilizer tank truck 100 have good sealing and stability. The fertilizer tank truck 100 adopts professional design, can adapt to different road conditions and transportation distances, and can efficiently and safely transport organic liquid fertilizer to mountainous and hilly areas with complex terrain. In the process of transporting organic liquid fertilizer, it is ensured that the organic liquid fertilizer will not leak or deteriorate during transportation.

[0098] Example 2: A liquid fertilizer spraying device suitable for a fertilizer tanker

[0099] Embodiment 2 of the present invention provides a liquid fertilizer spraying device suitable for a fertilizer tanker, which is arranged on the fertilizer tanker of Embodiment 1. The structure thereof is described in detail below in conjunction with the accompanying drawings.

[0100] refer to Figure 3 to Figure 4 The liquid fertilizer injection device comprises a fertilizer delivery pipeline 1, a nozzle 2, a rotating mechanism 3 and a pitch adjustment mechanism 4.

[0101] The rear end of the fertilizer delivery pipeline 1 is used as an input end, and the front end of the fertilizer delivery pipeline 1 is used as an output end. The rear end of the fertilizer delivery pipeline 1 is provided with a fertilizer tanker docking port 10, and the front end is provided with a nozzle 2;

[0102] The fertilizer tanker docking port 10 is used to dock with the fertilizer tanker 100 and receive the organic liquid fertilizer in the fertilizer tanker 100, and the nozzle 2 is used to spray the organic liquid fertilizer in the fertilizer delivery pipeline 1 outward;

[0103] The fertilizer delivery pipeline 1 is provided with a rotating mechanism 3, and the rotating mechanism 3 can make the spray head 2 rotate relative to the rear end of the fertilizer delivery pipeline 1, so as to realize the spraying of organic liquid fertilizer outward in a rotating manner;

[0104] The fertilizer delivery pipeline 1 is also provided with a pitch adjustment mechanism 4, which can make the spray head 2 tilt upward or tilt downward, so as to realize spraying the organic liquid fertilizer outward at an elevation angle or a depression angle.

[0105] As a specific implementation method, refer to Figure 3 The fertilizer delivery pipeline 1 includes a fertilizer tanker docking pipe section 11, a curved pipe section 12 and a pitch adjustment pipe section 13.

[0106] The fertilizer tanker docking pipe section 11 is docked with the rear end of the curved pipe section 12 through the rotating mechanism 3, and the front end of the curved pipe section 12 and the nozzle 2 are respectively docked and connected with the two ends of the pitch adjustment pipe section 13, thereby forming a continuous fertilizer delivery pipeline 1.

[0107] More specifically, the bottom surface and top surface of the rotating mechanism 3 are respectively provided with a fixed flange 31 and a rotating flange 32.

[0108] The rear end of the fertilizer tanker docking pipe section 11 is provided with a fertilizer tanker docking port 10 for docking with the fertilizer tanker 100, and the front end is fixedly connected to the fixing flange 31 of the rotating mechanism 3;

[0109] The two ends of the pitch adjustment pipe section 13 are respectively provided with a left flange 1310 and a right flange 1320.

[0110] The rear end of the curved pipe section 12 is fixed to the rotating flange 32 of the rotating mechanism 3, and the front end is connected to the left flange 131 of the pitch adjustment pipe section 13 through a flange;

[0111] The nozzle 2 is provided with a nozzle connecting pipe 20, and a flange is provided at the rear end of the nozzle connecting pipe 20. The flange at the rear end of the nozzle connecting pipe 20 of the nozzle 2 is butted with the right flange 1320 of the pitch adjustment pipe section 13 through a flange.

[0112] Specifically, the pitch adjustment mechanism 4 is arranged on the pitch adjustment pipe section 13 .

[0113] Embodiment 3: A rotating mechanism suitable for a liquid fertilizer injection device

[0114] Embodiment 3 of the present invention provides a rotating mechanism suitable for a liquid fertilizer injection device, which is arranged on the fertilizer delivery pipeline 1 of the liquid fertilizer injection device of Embodiment 2. The structure and connection relationship of the rotating mechanism 3 are described in detail below in conjunction with the accompanying drawings.

[0115] refer to Figures 5 to 9 The rotating mechanism 3 includes a cylinder 30, a fixed flange 31, a rotating flange 32 and a transmission mechanism 34.

[0116] The fixed flange 31 and the rotating flange 32 are respectively fixedly and movably sleeved on the outer sides of the lower part and the upper part of the cylinder 30;

[0117] The transmission mechanism 34 includes a motor 341, and the transmission shaft of the motor 341 is fixedly connected to the rotating flange 32;

[0118] The fertilizer delivery pipeline 1 includes a fertilizer tanker butt joint pipe section 11 and a curved pipe section 12, the fertilizer tanker butt joint pipe section 11 is butted through a fixed flange 31, the curved pipe section 12 is butted through a rotating flange 32, and the fertilizer tanker butt joint pipe section 11 and the curved pipe section 12 are connected through a cylinder 30 of a rotating mechanism 3;

[0119] When the motor 341 is started, the power of the motor 341 is transmitted to the rotating flange 32, and the rotating flange 32 rotates relative to the fixed flange 31, thereby adjusting the injection direction of the liquid fertilizer injection device.

[0120] As a specific implementation of the transmission mechanism, the transmission mechanism 34 further includes a worm 342 and a worm wheel 343.

[0121] The transmission shaft of the motor 341 is connected to the worm 342;

[0122] The worm 342 is meshed with the worm wheel 343 through gears;

[0123] The rotating flange 32 is fixedly connected to the worm gear 343 by bolts.

[0124] When the motor 341 is started, the motor 341 drives the worm 342 to transmit, and drives the rotating flange 32 to move through the worm gear 343, so that the rotating flange 32 rotates relative to the fixed flange 31.

[0125] Specifically, the rotating flange 32 includes a flange portion 321 and a vertical cylinder portion 322, and the end of the flange portion 321 is vertically connected to the vertical cylinder portion 322 and formed in one piece;

[0126] The rotating flange 32 is movably mounted on the outer side of the upper part of the cylinder 30 through the vertical cylinder part 322;

[0127] The flange portion 321 of the rotating flange 32 is located above the worm gear 343, and the worm gear 343 is fixedly connected to the flange portion 321 of the rotating flange 32 by bolts. Specifically, the worm gear 343 is provided with bolt holes 3430 for connecting the rotating flange and the worm gear. Fig. 9 As shown, the bolt passes through the bolt hole 3430 to achieve the bolt connection between the two.

[0128] In order to ensure that the rotating flange 32 rotates relative to the fixed flange 31 , preferably, the bottom end of the rotating flange 32 is spaced apart from the top end of the fixed flange 31 . Specifically, the bottom end of the rotating flange 32 is spaced apart from the top end of the fixed flange 31 by 2 mm.

[0129] Preferably, the fixing flange 31 and the cylinder 30 are integrally formed.

[0130] In order to prevent contamination by dust and other debris, preferably, a protective cover 33 is provided between the outer side of the fixed flange 31 and the outer side of the rotating flange 32, and the fixed flange 31, the worm gear 343 and the rotating flange 32 are arranged in the protective cover 33 from bottom to top.

[0131] In order to ensure the relative sliding between the rotating flange 32 and the cylinder 30, two circles of balls 35 are arranged between the outer wall of the cylinder 30 and the inner wall of the vertical cylinder part 322 of the rotating flange 32.

[0132] Each circle of balls 35 is provided with a ball groove, and each ball groove is provided with a ball receiving hole 350;

[0133] After all the balls 35 enter the ball grooves through the ball insertion holes 350 , a ball liner 351 is disposed in each ball insertion hole 350 , and each ball liner 351 is fixed by a liner set screw 352 .

[0134] In order to avoid friction between the rotating flange 32 and the cylinder 30, a lubricating oil hole is provided on the inner wall of the vertical cylinder portion 322 of the rotating flange 32, and the lubricating oil hole is connected to the gap between the vertical cylinder portion 322 of the rotating flange 32 and the cylinder 30. A lubricating oil nozzle 36 is provided in the lubricating oil hole, and the lubricating oil nozzle 36 faces the worm gear box 34;

[0135] When the worm gear box 34 is removed, the lubricating oil nozzle 36 is exposed, and lubricating oil is injected into the gap between the vertical cylindrical portion 322 of the rotating flange 32 and the cylindrical body 30 through the lubricating oil nozzle 36 .

[0136] In order to ensure the transmission efficiency between the worm 342 and the worm wheel 343 and also to solve the relative sliding problem between the rotating flange 32 and the cylinder 30 , lubricating oil is provided on the contact surface between the worm 342 and the worm wheel 343 .

[0137] In order to prevent the lubricating oil on the contact surface between the worm 342 and the worm wheel 343 from flowing out indiscriminately, specifically, a worm gear box 34 is configured outside the worm 342, and the worm gear box 34 includes an upper shell and a lower shell, and the upper shell and the lower shell are connected by a gear box connecting bolt 3400.

[0138] Furthermore, the housing of the motor 341 is fixed to the worm gear box 34 via motor connecting bolts 3410 .

[0139] Furthermore, the worm gear box 34 and the fixing flange 31 are fixedly connected via a fixing plate 310 .

[0140] In order to prevent relative movement between the worm 342 and the worm gear box 34 , bearings 37 are respectively disposed at both ends between the worm 342 and the worm gear box 34 .

[0141] Specifically, the bearing 37 is a single-row cylindrical roller bearing, the inner ring surface of the bearing 37 is fixedly sleeved on the worm 342 , and the outer ring surface of the bearing 37 is fixedly connected to the inner wall of the worm gear box 34 .

[0142] In order to seal the lubricating oil on the contact surface between the worm 342 and the worm wheel 343, the rotating mechanism 3 is also provided with a lubricating oil sealing assembly, which includes a circular sealing ring 371, a sealing gasket 372, and a star-shaped cross-section sealing ring 373. The circular sealing ring 371 and the star-shaped cross-section sealing ring 373 are arranged between the side wall of the bearing 37 and the worm gear box 34, and the circular sealing ring 371 and the star-shaped cross-section sealing ring 373 are separated by the sealing gasket 372.

[0143] In order to further seal the lubricating oil on the contact surface between the worm 342 and the worm wheel 343 , a lip seal ring 374 is provided at both ends of the gap between the vertical cylinder portion 322 of the rotating flange 32 and the cylinder 30 .

[0144] Specifically, the motor 341 is a gerotor hydraulic motor.

[0145] In this embodiment, the worm gear box 24 is designed according to the meshing size of the worm 342 and the worm wheel 343. Two circles of balls 35 and bearings 37 are used to ensure the relative sliding between the rotating flange 32 and the cylinder 30 and prevent relative movement between the worm 342 and the worm gear box 34. Lubricating oil is added through the lubricating oil nozzle 36 to ensure good inertia and improve the rotation performance of the injection device.

[0146] In order to prevent the liquid fertilizer from entering the cylinder 30 through the rotating flange 32 and leaking out when circulating in the cylinder 30, the rotating mechanism 3 is also equipped with a liquid fertilizer sealing device.

[0147] The liquid fertilizer sealing device comprises an inner liquid fertilizer sealing component and an outer liquid fertilizer sealing component.

[0148] The inner liquid fertilizer sealing assembly includes a first inner sealing ring 381 and a second inner sealing ring 382.

[0149] The port of the flange portion 321 of the rotating flange 32 extends toward the center of the cylinder 30 to form an inner flange 320, a sealing ring groove is provided on the upper end surface of the cylinder 30, and the inner flange of the outer port of the rotating flange 32 and the sealing ring groove of the upper port of the cylinder 30 form a closed annular groove with a notch, a first inner sealing ring 381 and a second inner sealing ring 382 are provided in the closed annular groove, and the second inner sealing ring 382 includes a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected;

[0150] The vertical portion 382 of the second inner sealing ring is adjacent to the first inner sealing ring 381 , and the horizontal portion of the second inner sealing ring 382 is disposed at the notch of the closed annular groove.

[0151] The external liquid fertilizer sealing assembly includes a first external sealing ring 391 and a second external sealing ring 392.

[0152] Flanges are welded to both ends of the curved pipe section 12 , and the flange at the bottom end of the curved pipe section 12 is butted against the flange portion 321 of the rotating flange 32 .

[0153] In order to seal the joint between the rotating flange 32 and the flange at the bottom end of the curved pipe section 12, an outer wall of the flange portion 321 of the rotating flange 32 is provided with an outer sealing ring groove, and a first outer sealing ring 391 and a second outer sealing ring 392 are provided in the outer sealing ring groove, and the second outer sealing ring 392 includes a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected;

[0154] Among them, the vertical part of the second outer sealing ring 392 is close to the first outer sealing ring 391, and the horizontal part of the second outer sealing ring 392 is arranged on the outer wall of the flange part 321 of the rotating flange 32, which is used to seal the connection between the flange part 321 of the rotating flange 32 and the flange at the bottom end of the curved pipe section 12.

[0155] In this embodiment, the inner liquid fertilizer sealing assembly and the outer liquid fertilizer sealing assembly form a multi-pass seal of the liquid fertilizer sealing device to ensure the sealing between the rotating flange 32 and the cylinder 30.

[0156] Embodiment 4: A pitch adjustment mechanism suitable for a liquid fertilizer spraying device

[0157] Embodiment 4 of the present invention provides a pitch adjustment mechanism suitable for a liquid fertilizer injection device, which is arranged on the pitch adjustment pipe section 13 of the liquid fertilizer injection device of Embodiment 2. The structure thereof is described in detail below in conjunction with the accompanying drawings.

[0158] refer to Figures 10 to 12, the pitch adjustment mechanism 4 includes a bellows 40, the pitch adjustment pipe section 13 includes a left push rod support tube 131 and a right push rod support tube 132, and the left push rod support tube 131 and the right push rod support tube 132 are butt-jointed through the bellows 40;

[0159] An upper push rod 41 is disposed above the bellows 40.

[0160] The upper push rod 41 is a telescopic rod that can extend forward or retract backward, and the upper push rod 41 is configured with a stepping motor 410. When the output shaft of the stepping motor 410 moves forward, the upper push rod 41 extends forward, causing the nozzle 2 to lean forward so as to spray the organic liquid fertilizer outward at a depression angle; when the output shaft of the stepping motor 410 moves backward, the upper push rod 41 retracts backward, causing the nozzle 2 to tilt backward so as to spray the organic liquid fertilizer outward at an elevation angle.

[0161] The left push rod support tube 131 and the right push rod support tube 132 are connected to each other through the bellows 40 to form the pitch adjustment tube section 13 .

[0162] As a specific implementation method for achieving the connection between the left push rod support tube 131 and the right push rod support tube 132 through the corrugated tube 40 , the right end of the left push rod support tube 131 and the left end of the right push rod support tube 132 are connected to the two ends of the corrugated tube 40 respectively.

[0163] More specifically, the two ends of the bellows 40 are respectively provided with clamps 400.

[0164] The right end of the left push rod support tube 131 is butted against the left end of the corrugated tube 40 via a clamp 400 and is tightened and fixed with a clamp set screw 401;

[0165] The left end of the right push rod support tube 132 is butted against the right end of the corrugated tube 40 via a clamp 400 and is tightened and fixed with a clamp set screw 401 .

[0166] In order to avoid interference between the upper push rod 41 and the bellows 40 during operation, a specific implementation method for setting the upper push rod 41 above the bellows 40 is that the right end of the left push rod support tube 131 and the left end of the right push rod support tube 132 are respectively provided with a left ear plate 411 and a right ear plate 412, and the two ends of the upper push rod 41 are respectively fixed on the left ear plate 411 and the right ear plate 412.

[0167] More specifically, the outer ends of the left ear plate 411 and the right ear plate 412 are respectively provided with ear holes, and the two ends of the upper push rod 41 are respectively fixed to the ear holes of the left ear plate 411 and the right ear plate 412 by push rod fixing bolts 413 .

[0168] In order to facilitate the bending of the front end of the bellows 40 relative to the rear end to produce pitch, preferably, the distance between the ear hole at the outer end of the left ear plate 411 and the left push rod support tube 131 is greater than the distance between the ear hole at the outer end of the right ear plate 412 and the right push rod support tube 132.

[0169] In order to improve the stability of the pitch adjustment mechanism 4 when the upper push rod 41 causes the nozzle 2 to pitch down or up through extension and retraction, a left-hand rotating arm 42 and a right-hand rotating arm 43 are respectively arranged on the left and right sides of the bellows 40.

[0170] The left-hand arm 42 and the right-hand arm 43 each include a left rod 51 and a right rod 52, and the left rod 51 and the right rod 52 are pivotally connected via a pivot 50;

[0171] Once the front end of the bellows 40 bends relative to the rear end, the left rod 51 and the right rod 52 of the left and right arms 42 and 43 simultaneously bend toward the pivot 50, guarding the left and right sides of the bellows 40 to prevent the bellows 40 from deviating to the left or right.

[0172] As a specific implementation method for realizing the pivot connection of the left rod 51 and the right rod 52 through the pivot 50, the right end of the left rod 51 and the left end of the right rod 52 are respectively provided with pivot holes, and after the pivot hole of the left rod 51 overlaps with the pivot hole of the right rod 52, a bolt is inserted as the pivot 50, thereby realizing the pivot connection of the two rods.

[0173] Furthermore, both ends of the left rod 51 are bent inward 90 degrees to form a bending plate 53, and the clamp 400 arranged at the end of the bellows 40 is provided with a flange, and the bending plates 53 at both ends of the left rod 51 and the flanges of the clamp 400 at the end of the bellows 40 are respectively connected through swing arm fixing screws 530.

[0174] Specifically, the bent plate 53 is provided with a screw hole, and the flange of the clamp 400 at the end of the bellows 40 is provided with a screw hole, and when the screw holes of the bent plate 53 at both ends of the left rod 51 coincide with the screw holes of the flange of the clamp 400 at the end of the bellows 40, the swing arm set screw 530 is inserted. Since screw connection is common knowledge in the technical field, it will not be described here.

[0175] Similarly, both ends of the right rod 52 are bent inward 90 degrees to form a bending plate 53, and the clamp 400 arranged at the end of the bellows 40 is provided with a flange. The bending plates 53 at both ends of the right rod 52 and the flanges of the clamp 400 at the end of the bellows 40 are respectively connected by swing arm fixing screws 530.

[0176] Preferably, the front end of the bellows 40 is bent relative to the rear end in a range of [-30°, 30°].

[0177] When the front end of the bellows 40 is effectively bent in the range of 0 to 30° relative to the rear end, the elevation angle of the nozzle 2 is changed; when the front end of the bellows 40 is effectively bent in the range of -30° to 0° relative to the rear end, the depression angle of the nozzle 2 is changed. Fig.13 and Fig.14 As shown, the coverage of the organic liquid fertilizer injection is adjusted thereby.

[0178] Embodiment 5: A nozzle suitable for a liquid fertilizer injection device

[0179] Embodiment 5 of the present invention provides a nozzle suitable for a liquid fertilizer injection device, which is arranged at the front end of the liquid fertilizer injection device of Embodiment 2. The structure thereof is described in detail below in conjunction with the accompanying drawings.

[0180] refer to Figures 15 to 17 The nozzle 2 includes a distribution head 21, a distribution head adjustment disk 22 and a truncated cone nozzle pipe 23.

[0181] The distribution head 21 is provided with a semi-spherical groove inside. Fig. 20 and Fig.21 As shown,

[0182] The groove wall of the hemispherical groove is provided with a plurality of fertilizer discharging areas and a plurality of non-fertilizer discharging areas, such as Fig.16 As shown, the fertilizer discharging area is densely covered with a plurality of fertilizer discharging holes 211;

[0183] The distribution head adjustment disk 22 is a circular disk, and a plurality of solid parts and hollow parts are arranged on the distribution head adjustment disk 22, such as Fig.17 As shown, the real part and the empty part are arranged at intervals, and the multiple real parts and the empty parts correspond to the multiple fertilizer discharging areas and non-fertilizer discharging areas of the distribution head 21 respectively;

[0184] The left end of the truncated cone nozzle tube 23 is large, and the right end is small, and it is truncated cone-shaped;

[0185] The front end of the distribution head 21 and the rear end of the truncated cone nozzle tube 23 are rotatably arranged at the two ends of the distribution head adjustment disk 22, respectively, exposing the front end port of the truncated cone nozzle tube 23 as a nozzle, so as to ensure that the distribution head adjustment disk 22 can be rotated to make the multiple real parts and empty parts of the distribution head adjustment disk 22 respectively face or stagger with the multiple fertilizer output areas and the multiple non-fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head 21. When the multiple empty parts of the distribution head adjustment disk 22 face the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head 21, the nozzle 2 is fully turned on; when the multiple empty parts of the distribution head adjustment disk 22 are staggered with the multiple fertilizer output areas on the groove wall of the semi-spherical groove of the distribution head 21, the nozzle 2 is not fully turned on, thereby realizing the adjustment of the liquid fertilizer injection flow rate.

[0186] Specifically, the injection mode of the organic liquid fertilizer can be adjusted by rotating the distribution head adjustment disk 22. The specific method is: by rotating the distribution head adjustment disk 22, the real part and the empty part of the distribution head adjustment disk 22 are respectively aligned with or staggered with the fertilizer outlet area and the non-fertilizer outlet area of ​​the distribution head 21, thereby adjusting the injection flow rate of the organic liquid fertilizer, and even the adjustment disk can adjust the spray shape of the liquid fertilizer.

[0187] As a specific connection method, the front end of the distribution head 21 is connected to the rear end of the distribution head adjustment disk 22 via a threaded connection, and the front end of the distribution head adjustment disk 22 is connected to the rear end of the conical nozzle tube 23 via a threaded connection, thereby achieving that the front end of the distribution head 21 and the rear end of the conical nozzle tube 23 can be rotatably arranged at the two ends of the distribution head adjustment disk 22 respectively.

[0188] In order to improve the spraying efficiency of the nozzle 2, a first fertilizer outlet main hole 210 is provided in the center of the groove wall of the semi-spherical groove of the distribution head 21, and a second fertilizer outlet main hole 220 is provided in the center of the distribution head adjustment disk 22;

[0189] When the front end of the distribution head 21 is connected to the rear end of the distribution head adjustment disk 22 by threads, the first fertilizer outlet main hole 210 of the distribution head 21 and the second fertilizer outlet main hole 220 of the distribution head adjustment disk 22 are directly opposite and connected. Fig. 20 and Fig.21 shown.

[0190] Preferably, a plurality of fertilizer discharging areas and a plurality of non-fertilizer discharging areas are arranged on the groove wall of the semi-spherical groove outside the first fertilizer discharging main hole 210, and a plurality of fertilizer discharging small holes 211 are densely distributed in the fertilizer discharging area, and the plurality of fertilizer discharging areas and the plurality of non-fertilizer discharging areas are surrounded by the first fertilizer discharging main hole 210 as the center, and the fertilizer discharging areas and the non-fertilizer discharging areas are arranged at intervals from each other, such as Fig.16 shown.

[0191] Specifically, the nozzle 2 is provided with a nozzle connecting pipe 20 , and the nozzle 2 is arranged at the front end of the liquid fertilizer injection device through the nozzle connecting pipe 20 .

[0192] Among them, the front end of the nozzle connecting pipe 20 is connected to the nozzle 2 through a thread, and the rear end of the nozzle connecting pipe 20 is configured with a flange. The flange at the rear end of the nozzle connecting pipe 20 of the nozzle 2 is connected to the right flange 1320 of the pitch adjustment pipe section 13 through a flange.

[0193] Specifically, the outer wall of the front end of the nozzle connecting pipe 20 is configured with an external thread, the inner wall of the rear end of the distribution head 21 is provided with an internal thread, and the rear end of the distribution head 21 is connected to the front end of the nozzle connecting pipe 20 through threads.

[0194] Example 6: A nozzle with a spiral nozzle

[0195] In the nozzle suitable for the liquid fertilizer injection device provided in Example 5, Example 6 of the present invention improves the nozzle of Example 5, and the improvement is:

[0196] In order to atomize the liquid fertilizer and thus reduce environmental pollution, the spiral nozzle 25 is installed on the nozzle of the nozzle of Example 3, and a nozzle with the spiral nozzle 25 is obtained.

[0197] Specifically, refer to Figures 18 to 23 The spiral nozzle 25 is provided with an inner threaded sleeve 24 , and the spiral nozzle 25 is sleeved on the front end nozzle of the truncated cone nozzle tube 23 of the nozzle of Example 3 through the inner threaded sleeve 24 .

[0198] The shape of the spiral nozzle 21 decreases from the rear end to the front end until a tip is formed, which is in a spiral shape.

[0199] The spiral nozzle 21 is used to atomize the liquid fertilizer.

[0200] Specifically, the outer wall of the front end portion of the truncated cone nozzle tube 23 is provided with an external thread, the inner wall of the rear end portion of the inner wire hoop sleeve 24 is provided with an internal thread, and the front end of the truncated cone nozzle tube 23 is connected to the rear end of the inner wire hoop sleeve 24 by threads; the outer wall of the rear end portion of the spiral nozzle 25 is provided with an external thread, the front end of the inner wire hoop sleeve 24 is provided with an internal thread, and the rear end of the spiral nozzle 25 is connected to the front end of the inner wire hoop sleeve 24 by threads.

[0201] When it is necessary to spray the atomized liquid fertilizer, the spiral nozzle 25 is fixed on the nozzle of the nozzle 2 to form a nozzle with the spiral nozzle 25. Then, the liquid fertilizer spraying device becomes a liquid fertilizer spraying device with a nozzle with the spiral nozzle 25. Fig. 22 and Fig.23 shown.

[0202] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid fertilizer spraying device suitable for a fertilizer tanker, characterized in that: It comprises a fertilizer delivery pipeline (1), wherein the rear end of the fertilizer delivery pipeline (1) is provided with a fertilizer tanker docking port (10), and the front end is provided with a spray head (2); The fertilizer tank truck (100) stores organic liquid fertilizer, the fertilizer tank truck docking port (10) is used to dock with the fertilizer tank truck (100) and receive the organic liquid fertilizer in the fertilizer tank truck (100), and the spray head (2) is used to spray the organic liquid fertilizer in the fertilizer delivery pipeline (1) outwards; The fertilizer delivery pipeline (1) is provided with a rotating mechanism (3), and the rotating mechanism (3) can cause the spray head (2) to rotate relative to the rear end of the fertilizer delivery pipeline (1), so as to realize the external spraying of the organic liquid fertilizer in a rotating manner; The fertilizer delivery pipeline (1) is also provided with a pitch adjustment mechanism (4), which can make the spray head (2) tilt upward or tilt downward, so as to spray the organic liquid fertilizer outward at an elevation angle or a depression angle.

2. The liquid fertilizer injection device according to claim 1, characterized in that: The fertilizer delivery pipeline (1) comprises a fertilizer tanker butt joint pipe section (11), a curved pipe section (12) and a pitch adjustment pipe section (13). The fertilizer tanker docking pipe section (21) is docked with the rear end of the curved pipe section (12) through the rotating mechanism (3), and the front end of the curved pipe section (12) and the nozzle (2) are respectively docked and connected with the two ends of the pitch adjustment pipe section (13), thereby forming a continuous fertilizer delivery pipeline (1).

3. The liquid fertilizer injection device according to claim 2, characterized in that: The bottom port and the top port of the rotating mechanism (3) are respectively provided with a fixed flange (31) and a rotating flange (32). The rear end of the fertilizer tanker docking pipe section (11) is provided with a fertilizer tanker docking port (10) for docking with the fertilizer tanker (100), and the front end is fixedly connected to the fixing flange (31) of the rotating mechanism (3); The two ends of the pitch adjustment pipe section (13) are respectively provided with a left flange (1310) and a right flange (1320); the rear end of the curved pipe section (12) is fixed on the rotating flange (32) of the rotating mechanism (3), and the front end is connected to the left flange (131) of the pitch adjustment pipe section (13) through a flange; The nozzle (2) is provided with a nozzle connecting pipe (20), the rear end of which is provided with a flange, and the flange at the rear end of the nozzle connecting pipe (20) of the nozzle (2) is butt-jointed with the right flange (1320) of the pitch adjustment pipe section (13) via a flange; The pitch adjustment mechanism (4) is arranged on the pitch adjustment pipe section (13).

4. The liquid fertilizer injection device according to claim 3, characterized in that: The rotating mechanism (3) comprises a cylinder (30), a fixed flange (31), a rotating flange (32) and a transmission mechanism (34). The fixed flange (31) and the rotating flange (32) are respectively fixedly and movably sleeved on the outer sides of the lower part and the upper part of the cylinder (30); The transmission mechanism (34) comprises a motor (341), and the transmission shaft of the motor (341) is fixedly connected to the rotating flange (32); The fertilizer delivery pipeline (1) comprises a fertilizer tanker butt joint pipe section (11) and a curved pipe section (12); the fertilizer tanker butt joint pipe section (11) is butt jointed via a fixed flange (31), and the curved pipe section (12) is butt jointed via a rotating flange (32); the fertilizer tanker butt joint pipe section (11) is connected to the curved pipe section (12) via a cylinder (30) of a rotating mechanism (3); When the motor (341) is started, the power of the motor (341) is transmitted to the rotating flange (32), and the rotating flange (32) rotates relative to the fixed flange (31), thereby adjusting the injection direction of the liquid fertilizer injection device.

5. The liquid fertilizer injection device according to claim 4, characterized in that: The transmission mechanism (34) further comprises a worm (342) and a worm wheel (343), the transmission shaft of the motor (341) is connected to the worm (342), and the worm (342) and the worm wheel (343) are meshed through gears; The rotating flange (32) comprises a flange portion (321) and a vertical cylindrical portion (322), and the end of the flange portion (321) is vertically butted with the vertical cylindrical portion (322) and formed in one piece; Wherein, the rotating flange (32) is movably sleeved on the outer side of the upper part of the cylinder (30) through the vertical cylinder part (322); The flange portion (321) of the rotating flange (32) is located above the worm gear (343), and the worm gear (343) and the flange portion (321) of the rotating flange (32) are fixedly connected by bolts.

6. The liquid fertilizer injection device according to claim 5, characterized in that: The worm (342) is provided with a worm transmission box (34); The inner wall of the vertical cylindrical portion (322) of the rotating flange (32) is provided with a lubricating oil hole, the lubricating oil hole is connected to the gap between the vertical cylindrical portion (322) of the rotating flange (32) and the cylindrical body (30), and a lubricating oil nozzle (36) is provided in the lubricating oil hole, and the lubricating oil nozzle (36) faces the worm gear box (34); The rotating mechanism (3) is also provided with a lubricating oil sealing assembly. Bearings (37) are respectively arranged at both ends between the worm (342) and the worm gear box (34). The lubricating oil sealing assembly comprises a circular sealing ring (371), a sealing gasket (372) and a star-shaped cross-section sealing ring (373); the circular sealing ring (371) and the star-shaped cross-section sealing ring (373) are arranged between the side wall of the bearing (37) and the worm gear box (34), and the circular sealing ring (371) and the star-shaped cross-section sealing ring (373) are separated by the sealing gasket (372); A lip-shaped sealing ring (374) is provided at each end of the gap between the vertical cylindrical portion (322) of the rotating flange (32) and the cylindrical body (30).

7. The liquid fertilizer injection device according to claim 6, characterized in that: The rotating mechanism (3) is also provided with a liquid fertilizer sealing device. The liquid fertilizer sealing device comprises an inner liquid fertilizer sealing component and an outer liquid fertilizer sealing component. The internal liquid fertilizer sealing assembly comprises a first inner sealing ring (381) and a second inner sealing ring (382). The port of the flange portion (321) of the rotating flange (32) extends toward the center of the cylinder (30) to form an inner flange (320), a sealing ring groove is provided on the upper end surface of the cylinder (30), and the inner flange of the outer port of the rotating flange (32) and the sealing ring groove of the upper port of the cylinder (30) form a closed annular groove with a notch, a first inner sealing ring (381) and a second inner sealing ring (382) are provided in the closed annular groove, and the second inner sealing ring (382) includes a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected; The vertical portion (382) of the second inner sealing ring is close to the first inner sealing ring (381), and the horizontal portion of the second inner sealing ring (382) is arranged at the notch of the closed annular groove; The external liquid fertilizer sealing assembly comprises a first external sealing ring (391) and a second external sealing ring (392). Flanges are welded to both ends of the curved pipe section (12), and the flange at the bottom end of the curved pipe section (12) is butted against the flange portion (321) of the rotating flange (32); An outer wall of the flange portion (321) of the rotating flange (32) is provided with an outer sealing ring groove, a first outer sealing ring (391) and a second outer sealing ring (392) are provided in the outer sealing ring groove, the second outer sealing ring (392) comprises a horizontal portion and a vertical portion, and the end of the horizontal portion and the end of the vertical portion are vertically fixedly connected; The vertical portion of the second outer sealing ring (392) is adjacent to the first outer sealing ring (391), and the horizontal portion of the second outer sealing ring (392) is arranged on the outer wall of the flange portion (321) of the rotating flange (32), so as to seal the connection between the flange portion (321) of the rotating flange (32) and the flange at the bottom end of the curved pipe section (12).

8. The liquid fertilizer injection device according to claim 3, characterized in that: The pitch adjustment mechanism (4) is arranged on the pitch adjustment pipe section (13), and comprises a bellows (40). An upper push rod (41) is disposed above the bellows (40). The upper push rod (41) is a telescopic rod that can be extended forward or retracted backward, and the upper push rod (41) is equipped with a stepping motor. When the output shaft of the stepping motor moves forward, the upper push rod (41) extends forward, causing the spray head (2) to bend forward, so as to achieve the outward spraying of the organic liquid fertilizer at a depression angle; when the output shaft of the stepping motor moves backward, the upper push rod (41) retracts backward, causing the spray head (2) to be tilted backward, so as to achieve the outward spraying of the organic liquid fertilizer at an elevation angle.

9. The liquid fertilizer injection device according to claim 8, characterized in that: A left-hand rotating arm (42) and a right-hand rotating arm (43) are respectively arranged on the left and right sides of the bellows (40); The left-hand rotating arm (42) and the right-hand rotating arm (43) each comprise a left rod (51) and a right rod (52), and the left rod (51) and the right rod (52) are pivotally connected via a pivot (50); Once the front end of the bellows (40) is bent relative to the rear end, the left rod (51) and the right rod (52) of the left-hand arm (42) and the right-hand arm (43) are simultaneously bent toward the pivot (50), guarding the left and right sides of the bellows (40) to prevent the bellows (40) from deviating to the left or right.

10. The liquid fertilizer injection device according to claim 3, characterized in that: The spray head (2) comprises a distribution head (21), a distribution head adjustment disk (22) and a truncated cone nozzle pipe (23). A semi-spherical groove is arranged inside the distribution head (21), a plurality of fertilizer discharging areas and a plurality of non-fertilizer discharging areas are arranged on the groove wall of the semi-spherical groove, and a plurality of fertilizer discharging holes (211) are densely distributed in the fertilizer discharging area; The distribution head adjustment disk (22) is a circular disk, and is provided with a plurality of solid parts and hollow parts, the solid parts and hollow parts are arranged at intervals, and the plurality of solid parts and hollow parts correspond to a plurality of fertilizer discharging areas and non-fertilizer discharging areas of the distribution head (21) respectively; The truncated cone nozzle tube (23) has a large left end and a small right end, and is truncated cone-shaped; The front end of the distribution head (21) and the rear end of the truncated cone nozzle pipe (23) are rotatably arranged at the two ends of the distribution head adjustment disk (22), respectively, exposing the front end port of the truncated cone nozzle pipe (23) as a nozzle, so as to ensure that by rotating the distribution head adjustment disk (22), the multiple solid parts and the empty parts of the distribution head adjustment disk (22) are respectively aligned with or staggered with the multiple fertilizer outlet areas and the multiple non-fertilizer outlet areas on the groove wall of the semi-spherical groove of the distribution head (21); when the multiple empty parts of the distribution head adjustment disk (22) are aligned with the multiple fertilizer outlet areas on the groove wall of the semi-spherical groove of the distribution head (21), the nozzle (2) is fully conductive; when the multiple empty parts of the distribution head adjustment disk (22) are staggered with the multiple fertilizer outlet areas on the groove wall of the semi-spherical groove of the distribution head (21), the nozzle (2) is not fully conductive, thereby realizing the adjustment of the liquid fertilizer injection flow rate.

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